chore(release): bump version to 1.1.21

Merge asset history trends into feature/asset-statistics
feat(assets): add verified asset history trends and compact overview
2026-10-24 13:16:59 +08:00 · 2026-10-24 13:16:53 +08:00 · 2026-10-24 13:16:48 +08:00 · 2026-10-22 11:06:43 +08:00 · 2026-10-22 11:06:41 +08:00 · 2026-10-16 18:23:57 +08:00
88 changed files with 3253 additions and 221 deletions
@@ -0,0 +1,79 @@
+# 故障管理 BI 设计验收
+
+final result: passed
+
+## 最新调整：总览视觉与多维分析对齐
+
+管理总览复用多维分析的页面色板与标题布局，统一浅蓝背景、白色7px圆角面板、蓝色标题标记、细边框按钮、日期控件和表格。趋势图已闭环/未闭环使用与分布分析一致的蓝/橙色；周报新增/解决仍用蓝/绿语义色。统计和排列顺序不变。
+
+- 桌面：`../outputs/fault-overview-theme-20261013/desktop.jpg`（1448×1086）；手机：`../outputs/fault-overview-theme-20261013/mobile.jpg`（390×844），均已目视检查。
+- 两页背景均为 rgb(248,251,255)，共用主蓝、文字及边框变量；手机四卡132px等高，scrollWidth=390，无横向溢出。
+- 页签往返、手机日期选择打开/关闭正常，趋势和周报导出入口保留。类型检查、生产构建和diff检查通过；本次验证控制台无新增error/warn。
+- 未改动数据接口或统计口径；未重复执行数据库测试与下载导出文件。
+
+## 最新调整：管理总览与处理效率合并
+
+按用户最新要求，管理总览恢复原来的页面及 `/overview` 统计，依次展示实时汇总、故障处理趋势、故障运维周报；移除独立处理效率页签，保留多维分析、故障明细。以下原参考设计验收为历史记录，管理总览以本段及最新截图为准。
+
+- 桌面证据：`../outputs/fault-overview-merged-20261013/desktop.jpg`，1448×1086。
+- 手机证据：`../outputs/fault-overview-merged-20261013/mobile.jpg`，390×844；四卡均为132px，无页面横向溢出。
+- 验证原今日新增、本日解决、当前在办及累计台账，当前在办下钻27单；页签往返正常，三个统计区同页出现，周报恢复默认业务周。
+- TypeScript、生产构建、diff检查通过；本次未修改后端统计口径。页面非空、无框架覆盖层，最终验证期间控制台无新增error/warn。
+- 保留趋势与周报的独立日期、下钻和导出按钮；本次未重复下载导出文件。已清除临时viewport覆盖。
+
+## 对照依据
+
+- 来源：`/var/folders/3b/z3fk0dm9419dk7qffdvrwmfh0000gn/T/codex-clipboard-1efea2c0-2930-4600-b725-874c3c2a1f4f.png`
+- 实现：`http://127.0.0.1:4310/asset#faults`
+- 桌面截图：`../outputs/fault-dashboard-20261013/desktop.jpg`
+- 同图左右对照：`../outputs/fault-dashboard-20261013/comparison.jpg`（左参考，右实现）
+- 局部对照：`../outputs/fault-dashboard-20261013/comparison-filters-kpis.jpg`（筛选、指标、提示条）
+- 参考和实现各 1448×1086 像素；CSS viewport 1448×1086，DPR 1，无密度缩放。比较图片由两份截图并排组成，展示工具可能缩小，局部图另行检查。
+- 状态：浅色、管理总览、2026-09-14 至 2026-10-13、全部授权数据。参考使用示例数据，实现使用实际数据库；数值、分类数量和客户名称不要求与示例相同。
+- 手机：390×844 `mobile.jpg`；320×844 `mobile-320.jpg`。另有 `efficiency.jpg`、`drilldown.jpg`。
+
+## Findings / 比较与修复历史
+
+1. [P2，已修复] 现有应用顶部浮动面包屑与新标题重叠。通过仅作用于故障页面的 shell 选择器隐藏重复面包屑；最终桌面、手机截图无重叠。
+2. [P2，已修复] 第一版分析面板和列表过长，重点跟进过度后移。车型默认前三、客户默认前四、跟进默认前三，提供全部入口；减小图表行距、等级间距和桌面表格单元格内边距。最终 `comparison.jpg` 显示完整指标、分析面板及跟进入口。
+3. [P2，已修复] 分布图自动跳过部分区域标签。YAxis interval=0；补充柱尾数量，包括未闭环为零的组，保留精确数量表与下钻。
+4. [P2，已修复] 320px 下标题和导出挤占，原生筛选框太窄。标题操作区换行，筛选单列，指标标题字号适配。`mobile-320.jpg` 显示全部入口及所选值，没有横向页面溢出。
+5. 最终对照无未解决的 P0/P1/P2。以下为有意保留的业务差异，而非像素复刻：现有导航品牌与功能、页面水印、今日新增/本日解决/累计台账、未标注等级及部位、真实长车型名称和运维处置人第二列。实际内容略长，重点跟进明细需继续向下滚动；避免通过隐藏未知数据或缩小明细字体模拟示例高度。
+
+## 必查表面
+
+- 字体：沿用应用中文无衬线回退，桌面标题 24px、面板标题 14px、指标 29px，层级与参考一致；重点检查筛选、数字与窄屏换行。没有以图片模拟文字。
+- 间距：四指标等高、两行双列分析面板、统一边框与圆角；手机两列指标、分析面板单列，宽表内部横滚。
+- 颜色：浅蓝页面、白底面板、蓝色主操作；橙色未闭环、红色逾期，未知等级灰色。等级与实际停运含义分开说明。
+- 图像与图标：参考主要为数据图表。使用现有 Lucide 图标及真实数据图表；沿用产品已有品牌导航，未自行绘制替代参考 ONE OS 标识。无新增位图资产或虚构装饰图。
+- 文案与数据：使用真实口径和实际分类；“当前在办=待处理+处理中”，逾期为在办子集；“处置记录”避免把 solve_process 当作当前工作流阶段。发生频率缺分母，停运与修复时长缺数据，明确显示待补。
+
+## 功能与数据验收
+
+- 新增 3 项后端测试；故障模块与报表导出测试合计 32 项全部通过。
+- TypeScript 检查、生产构建、git diff --check 通过。
+- 实库只读核对 63 个分组、48 个车型×部位单元格，汇总与下钻一致；在办 26=17+9，逾期5，本期106，车辆去重89。
+- 浏览器验证：华东筛选后总览39单，趋势39单，周报新增39/解决125；按月切换及报表下载；等级20单下钻、交叉单元格3单下钻、单条故障明细、十二维分析默认运维处置人/故障工单状态。
+- 手机更多筛选 L1-特急得到本期1单；其他区域空数据正确显示0和空态。320/390px 页面 scrollWidth 等于 viewport width。
+- 总览 Excel 下载成功，重新读取工作簿确认6张表、日期/筛选说明、冻结表头和数字106/26与页面一致。
+- 处理效率保留既有柱图、周报折线图、今日行提示、报表导出与下钻。
+- 最终验证时间段（08:40 UTC 后）无浏览器 error/warn；开发编辑过程曾有一次已修复的 HMR 导入错误，未计为运行期问题。
+- 浏览器测试后恢复管理总览、全部筛选，并清除临时 viewport override。
+
+## Open Questions / 残余限制
+
+- 故障发生频率需要同期服务车辆规模；实际停运、修复时长需要业务定义和数据来源，未捏造这些指标。
+- 未进行不同浏览器引擎实机测试；已验证当前 in-app 浏览器桌面和移动断点。
+- 只读接入，未修改业务数据库；本次改动未提交或推送。
+
+## Implementation Checklist
+
+- [x] 参考布局落地并绑定真实数据。
+- [x] 汇总、业务筛选、分布、矩阵、客户和重点跟进下钻。
+- [x] 趋势/周报继承筛选并保留导出。
+- [x] 数据权限、空数据、移动端与导出验证。
+- [x] 同图对照、局部检查、问题修复和最终证据保存。
+
+## Follow-up Polish
+
+- P3：后续如提供统一品牌资产，可单独统一应用级导航标识；当前保持现有产品导航。
@@ -0,0 +1,23 @@
+# AI 问数全量记录
+
+在部署包含本次代码的服务之前，执行增量建表（只创建审计表，不修改业务数据）：
+
+```sh
+node --import tsx scripts/migrate-ai-questions.ts           # 只查看 SQL，不连接数据库
+node --import tsx scripts/migrate-ai-questions.ts --apply   # 使用部署环境 DB 配置执行
+```
+
+表：`bi_asset_ai_questions`。所有已登录、通过参数校验的 `/ask` 请求都先 INSERT，再执行查询；不按问题去重。
+未登录、空问题、非法请求体不作为用户提问保存。输入中的凭据会脱敏。没有自动清理策略；旧的需求缺口表仍按原有 90 天规则维护。
+
+- `event_type`：question 首次提问、followup 连续追问、action 下钻操作、feedback 未解决反馈。
+- `business_types`：JSON 数组，使用既有计划分类（inventory 库存、operating 运营、pending 待交车、abnormal 异动、flow 交还替换等）；综合问题可以有多个分类，无法完成理解时为空数组。
+- `outcome`：processing 处理中、success 成功、empty 无匹配、partial 部分回答、clarification 待澄清、help 使用说明、unsupported 暂不支持、failed 失败、cancelled 取消、rejected 拒绝执行、feedback 用户反馈。
+- `reason`：失败/拒绝/缺口原因代码，例如 busy、session_expired、generation、unsatisfied。
+- `actor_id` 是实际操作者；`user_id`、`login_name`、`user_name` 是当前数据权限用户；模拟视角另有 `is_preview` 与 `preview_session_id`。
+- `question` 保存接受的完整问题（最多 2000 字符，敏感凭据脱敏），`action_json` 保存下钻参数。会话、上级结果、当前结果、公司和权限级别分别关联。
+- `answer` 保存回答摘要、提示和子分析摘要，不复制车辆明细数据；另存引擎、开始/结束时间、毫秒耗时。
+
+初始写入失败返回 503，不继续执行无记录的查询。结束更新失败重试一次；原始问题仍在数据库，回答提示“处理结果暂未保存”，服务只输出记录 ID，不输出问题或数据库错误。进程突然终止或结束更新失败的记录保持 processing，可通过 started_at 识别长期未完成，不能将其算作成功。
+
+模拟用户提问同样记录，但不新增需求缺口反馈，也不改变原有只读业务权限。没有新增公开查询接口；数据库查看权限沿用现有管理制度。新表不能补回此前仅在内存中保存的历史问题。
@@ -11,7 +11,7 @@
 | 当前在办 | 全部待处理、处理中故障，不限制提报日期；按最新确认，在办 = 待处理 + 处理中 |
 | 累计台账 | 全部有效故障台账，包括归档、未闭环和其他状态 |

-「当前在办」卡片以“待处理 ＋ 处理中”展示构成，逾期以总量旁的“其中逾期”独立标记，均使用故障多维分析与故障明细下钻。按最新确认，在办仅为待处理与处理中之和，挂起保留在累计台账；旧兼容接口的全部未闭环口径保持不变。
+「当前在办」卡片以“待处理 ＋ 处理中”展示构成，逾期以总量旁的“逾期”独立标记，均使用故障多维分析与故障明细下钻。按最新确认，在办仅为待处理与处理中之和，挂起保留在累计台账；旧兼容接口的全部未闭环口径保持不变。

 - 待处理/处理中：按 OneOS 标准化任务状态分别统计，兼容待处置、未处理、处置中等历史值。
 - 逾期：待处理或处理中，且保存的 `deadline_at` 严格早于本次数据时间。按北京时间解释截止时间，挂起和已归档不计入；无截止时间不自行以提报时间或固定 30 天推算。与 OneOS `selectSupervisorRows.overdueCount` 汇总口径一致，存储的截止时间包含业务端 SLA 配置及挂起顺延结果。
@@ -79,3 +79,23 @@
 - 周报：日期、星期、新增故障、解决故障，按日期倒序；不导出接收处理指标。
 - XLSX 包含带标题、范围、数据时间、汇总指标的统计表；当前有图表时附加「图表」工作表，以图片保存页面图表快照并保持比例。图表为静态快照，修改统计表不会联动图表。
 - 统一深色表头、指标配色、交替底色、今日浅色标记；真实 Excel 日期和数字格式、合计及闭环率公式、冻结表头、筛选与打印设置。ExcelJS 按导出操作动态加载。
+
+## 风险与服务分析总览（2026-10-13）
+
+故障管理按最新确认保留「管理总览 / 多维分析 / 故障明细」三个页签。管理总览与处理效率合并，恢复原有页面及统计：今日新增、本日解决、当前在办（待处理 + 处理中，逾期为子集）、累计台账，沿用 `/overview` 接口；下方直接展示原有故障处理趋势与故障运维周报。趋势默认近30天，周报默认周六至周五，分别选择日期、导出和下钻。管理总览不受其他页签的业务筛选影响。多维分析、故障明细保留新增分析能力及统一日期、区域、客户、品牌车型查询；更多筛选包含城市、业务部门、运维处置人、故障程度、故障部位、库存状态，点击查询生效。
+
+- 期间新增故障：所选提报日期内的有效故障。卡片及导出仅展示期间新增总量，不再拆分提报来源。对比上期采用紧邻本期、天数相同的区间；上期为零时显示无可比基数。
+- 受影响车辆：同批故障按关联车辆 ID 去重，缺 ID 时使用故障车牌；两者都缺失的不计车辆数，单列数据完整性提示。车辆跨组可能重复，不直接累加。
+- 当前在办：已应用业务筛选下，所有日期的待处理 + 处理中。逾期为其子集；最长逾期按截止时间到数据时间的天数向上取整。
+- 区域、等级、客户、车型分布和车型×部位矩阵：按本期提报队列统计，闭环状态截至更新时间。一单多部位分别计入单元格，车型合计按单去重。
+- 客户影响表：本期影响车辆去重；同一客户的当前在办不限提报日期。库存空客户单列库存车。仅展示本期存在故障的客户组。
+- 重点跟进：只展示 L1-特急且未闭环（状态非已归档，含挂起等）的故障，沿用权限及业务筛选，不限制提报日期。逾期优先，同优先级按提报时间倒序，最多展示5单；统计标签使用同一 L1 未闭环范围，没有符合条件的故障时显示空态。“查看全部”始终可用，进入当前权限内的全部故障台账，清除业务筛选和搜索条件，不限等级、状态及提报日期。完整明细可切换本期、在办、逾期及累计台账，搜索车牌、单号、描述或运维处置人。
+
+新增只读字段：`fault_level`、`fault_categories`、`solve_process`。等级映射经 OneOS 字典核对：1=L1-特急、2=L2-紧急、3=L3-一般、4=L4-提示；缺失等级/部位独立显示未标注。处置记录使用 `solve_process`，不将 AI 流转字段 `process_status` 当作业务处理进度。没有同期服务车辆规模、实际停运和修复时长依据，发生频率禁用并提示缺少分母，停运和修复时长提示待补数据。
+
+新增接口：
+- `GET /api/asset-faults/dashboard?start=YYYY-MM-DD&end=YYYY-MM-DD`：授权范围内汇总、筛选项、分布、交叉矩阵、重点跟进和完整性信息。
+- `GET /api/asset-faults/dashboard-analysis`：同样日期和业务筛选；`scope=focus|cohort|open|waiting|processing|overdue|ledger|reported|closed`。focus 为全部提报日期的 L1 未闭环故障；cohort 为提报日期队列，reported/closed 为北京时间今日，其他为全部日期当前状态；可附 `id` 查看单条记录。
+- 趋势、周报及其下钻接口同时支持上述业务筛选。所有接口先执行权限筛选，筛选项也仅来自授权记录，保持 no-store，不写业务数据库。
+
+总览导出新增 6 张 Excel 工作表：管理总览、区域分布、故障程度、客户影响、车型分布、车型与部位。导出已加载统计快照，包含日期、业务筛选、数据时间、冻结表头、交替底色和数字格式。趋势、周报的既有导出保留，并增加业务筛选说明。
@@ -0,0 +1 @@
+period_month,scheduled_for,captured_at,definition_version,source_reference,vehicle_id,plate_number,vin,operation_status,vehicle_status,subject_org,department_name,manager_id,manager_name,vehicle_type,model,brand,color,ownership,rent_company,province,city,contract_no,customer_name,contract_org,project_name
@@ -0,0 +1,169 @@
+## 当前展示口径（2026-10-24 更新）
+
+按用户最新要求，停止展示交还记录推算的历史资产数据。正式路由只提供当前实时数据和真实归档快照，已取消 `ASSET_HISTORY_RECONSTRUCTION_FILE` 的接入；即使保留旧环境变量，也不能通过趋势或明细接口读取回溯文件。旧核对表和私有回溯文件保留用于离线核查，不删除、不写入正式快照。
+
+2026年10月前的缺失期间返回空值，不补零、不提供估算明细。页面仅显示一句提示：“历史库存状态快照缺失，核对中，暂不展示。” 当前10月继续读取实时数据；今后只有采集成功的真实快照才能归档展示。服务端仍返回存储和采集状态供运维检查，页面不再重复展示部署及回溯说明。
+
+本地验收服务同步停用回溯文件。生产迁移、部署和自动采集仍未执行；该展示调整不等于采集已经启用。下文的回溯回填章节保留为历史实施记录，其环境变量接入和页面展示说明已被本节取代。
+
+# 资产历史趋势
+
+资产概览顶部指标之后新增历史趋势。月度选择年份，年度每年一个年末点；运营和库存为堆叠柱，总数为折线。下方期间按钮支持键盘和触摸选点，月度明细可分类、搜索车牌/VIN及分页。
+
+## 口径及时间
+
+- 复用资产仓储 `MAIN_SQL`、`transformRow`、`isOperatingVehicle`、`isInventoryVehicle`。
+- 总数为未删除、未退出运营的车辆；运营为租赁/自营，库存为可运营/待运营；异动、待交车不另加。
+- 月末最后一天 `Asia/Shanghai` 17:00 为计划时点；只允许在 17:00:00（含）到 17:01:00（不含）内开始读取。
+- `captured_at` 是程序记录的实际开始读取时间，`scheduled_for` 是计划时点；两者不宣称完全相同。
+- 一致性读取可在窗口内开始后继续执行；持久化失败最多重试三次，始终使用同一份已取得数据，不重新读晚到的台账。
+- 当月在截止前显示实时点；年末前当年年度点显示实时点。截止后只能显示归档、归档中、失败或缺失。12 月快照直接用作年度年末点。
+- 实时点每五秒走 `/live`，不重读全部历史；切换年份/公司/模式、手动刷新、跨月或归档边界时更新历史。
+- 实时数据沿用现有资产仓储的五秒缓存，实时 `asOf` 为本次服务端查询时间，不代表源台账所有记录的最后修改时间；固定快照绕过该缓存。
+- 缺失及未来数量为 `null`，合法零数量为 `0`，不插值、不跨缺失点连线。比较只取相邻期间；一月使用上年十二月作为基期。
+- 默认年度显示最近五年；更早有归档或导入时自动扩展年份。月度允许查询 2000 年至当前年份。
+
+## 权限及历史字段
+
+本功能是资产存量统计。实时和归档都复用 `filterAssetVehiclesByPermission`：库存对账号公共可见，其余车辆沿用全量、部门或个人权限。公共库存按所查询时点的运营状态判断；历史公司、部门和负责人取快照，角色及个人身份别名取当前认证系统。公司筛选在权限过滤范围内取 `subjectOrg`。
+
+不连接今日车辆列表补字段，不因车辆退出、删除或转部门丢失历史。当前来源的部门权限使用部门名称，快照如实保存该名称，不虚构来源没有的部门 ID。未来源系统若增加稳定部门 ID，需版本化升级口径。
+
+归档汇总从授权后的同一批逐车数据计算，不返回批次全量计数。明细客户名称复用既有脱敏。历史公司仅出现在有权限的相关历史数据中；顶部公司列表中的历史独有公司标注“历史主体”，不改变现有实时公司接口含义。权限视角切换会由现有认证容器重建页面并取消旧请求。
+
+## 存储
+
+`bi_asset_history_settings` 保存首次实际启用时间。重复启用保留首次时间。
+
+`bi_asset_history_batches` 保存年月、口径版本、计划及实际时间、来源、状态、失败码、全量校验计数及导入追溯信息。年月与口径版本唯一。正式归档为 `COMPLETE`，失败为 `FAILED`，错过为 `MISSED`。
+
+`bi_asset_history_vehicles` 保存车辆字符串 ID、原始运营/车辆状态、归档分类、公司、部门、负责人 ID 和冻结车辆 JSON。批次内车辆唯一；不以当前车辆表为外键。JSON 保留车牌、VIN、型号、品牌、业务归属等明细信息，排除无关的异动工作详情和待交车附件信息。
+
+采集用 MySQL 同一连接的命名锁防止多实例并发，以只读一致性事务执行原始 SQL，再以独立事务原子发布头表、全部明细和 COMPLETE 状态。窗口外不读源数据。读接口、普通模块导入和只读预览不建表、不采集。读到不存在的表时显示部署提示并保留当前实时点；真实数据库故障返回错误，不伪装成空数据。
+
+归档读取会校验车辆唯一性、分类、明细计数和批次计数，不把损坏的明细显示为合法零快照。已提交但提交确认丢失时，重试先检查 COMPLETE，不覆盖已发布数据。
+
+## API
+
+全部接口经现有认证和权限预览中间件，响应 `Cache-Control: private, no-store`。
+
+| GET | 参数 | 用途 |
+| --- | --- | --- |
+| `/api/asset-history/trend` | `mode=monthly\|annual`、`year`、`subject` | 趋势点、相邻差值、可选年份及相关历史公司 |
+| `/api/asset-history/live` | `mode`、`subject` | 仅更新当前实时点，不查历史明细 |
+| `/api/asset-history/details` | `month=YYYY-MM`、`batchId`、`subject`、`category=all\|operating\|inventory`、`search`、`page`、`pageSize` | 月度明细，默认 50 台，最大 100 台；页面每页 30 台 |
+
+归档明细入口附带批次 ID，服务端同时核对月份。没有可用快照返回 409，不回退到实时台账。400 为参数错误，401 为未认证，503 为读取或数据质量异常。没有 HTTP 采集、写入和导入接口。
+
+## 迁移与启用
+
+默认关闭：`ASSET_HISTORY_CAPTURE_ENABLED` 只有精确设为 `1` 才启动采集。迁移不等于启用，迁移本身不会写入首次启用时间。
+
+在项目根目录审阅迁移（不连接数据库）：
+
+```sh
+node --import tsx scripts/migrate-asset-history.ts
+```
+
+取得目标数据库迁移授权后，使用受控环境变量配置正确数据库，再显式执行：
+
+```sh
+node --import tsx scripts/migrate-asset-history.ts --apply
+```
+
+如部分建表失败，修正原因后可重复执行；脚本使用 `CREATE TABLE IF NOT EXISTS`。新建空表不会伪造以前历史。
+
+授权启用后，将服务进程环境变量设为 `ASSET_HISTORY_CAPTURE_ENABLED=1` 并按现有流程重启服务。调度器首次成功连接时记录 `enabled_at`，启用前的时点不会追补。如果在月末 17:00 之后才首次启用，即使仍处于该分钟，也从下一个月末开始采集。
+
+按本需求确认日期 2026-10-19，如果在 2026-10-31 17:00 前成功启用，首个计划时点为北京时间 **2026-10-31 17:00**；实际计划以数据库首次启用时间和服务时间计算，不硬编码。
+
+保持服务在计划时点在线。停止期间错过的 eligible 月份会在重启时记为 MISSED；已 FAILED 的记录保留诊断标记。记录到启用前没有归档，不能用重启时的实时数回填。日志前缀为 `[asset-history]`，包含年月及 captured/already-complete/locked/failed/missed 结果，不记录客户明细或连接凭据。
+
+建议仅让受控服务账号写快照表；源表仍只需读权限。多实例可启用同一数据库下的同一采集配置，命名锁和数据库唯一约束共同保证幂等。启用开关为进程级配置，`enabled_at` 是历史启用记录，不能仅根据该记录判断某个进程现在是否运行调度器。
+
+管理员可用以下只读 SQL 检查，不通过普通用户接口暴露全量计数：
+
+```sql
+SELECT enabled_at FROM bi_asset_history_settings WHERE id=1;
+SELECT period_month, scheduled_for, captured_at, completed_at,
+       definition_version, source, status, failure_code,
+       total_count, operating_count, inventory_count
+FROM bi_asset_history_batches ORDER BY period_month DESC LIMIT 12;
+SELECT b.period_month, b.total_count, COUNT(v.vehicle_id) AS detail_count
+FROM bi_asset_history_batches b
+LEFT JOIN bi_asset_history_vehicles v ON v.batch_id=b.id
+WHERE b.status='COMPLETE'
+GROUP BY b.id, b.period_month, b.total_count;
+```
+
+## 回退
+
+1. 设置 `ASSET_HISTORY_CAPTURE_ENABLED=0` 并重启服务，停止后续采集。
+2. 回退应用代码；已有归档表可原样保留，不影响旧代码。
+3. 若确需撤销表，先备份并取得数据库删除授权；依次删除明细表、批次表、设置表。默认不删除任何归档数据。
+
+读接口不自动建表，因此回退后也不会被请求重新创建。再次上线可继续读取既有归档；首次启用时间不自动重置。
+
+## 后续逐车导入契约（本次不提供导入写接口）
+
+提供仅表头模板 `docs/asset-history-import-template.csv`。使用 UTF-8 CSV，每行一辆车，同一文件只允许一个年月、一个口径版本和一个统计时点。
+
+必填字段：`period_month`、`scheduled_for`、`captured_at`、`definition_version`、`source_reference`、`vehicle_id`、`operation_status`。空缺车牌/VIN使用空值，不造车辆 ID。ID 均按文本读取。`scheduled_for` 必须是指定年月最后一天北京时间 17:00，`captured_at` 必须来自可信历史来源，不能把导入执行时间当作历史读取时间。
+
+其余字段见模板。部门、负责人、主体缺失须显式留空，不能用今日台账补齐；部门/个人权限因此可能看不到未归属的运营车辆，这是数据缺失而非自动扩大授权的理由。展示型号、品牌、原始车辆状态按历史来源保存；历史状态映射复用现有分类函数，不接受退出运营车辆或未知运营状态作为有效存量。归档分类由导入校验程序计算，不直接信任文件中的分类列。
+
+状态映射：`1`/`租赁`、`2`/`自营`属于运营；`3`/`可运营`/`在库`、`4`/`待运营`属于库存；`5`/退出运营及未知值拒绝计入存量。`vehicle_status` 为历史原值，待交车或异动不改变上述归档分类。展示用 `status` 应按现有 `mapStatus` 生成。
+
+后续导入器必须先提供 dry-run：校验日期和时区、来源、未来时间、车辆唯一性、状态、权限所需字段、计数对平及同年月冲突，再原子发布来源为 IMPORT 的批次和逐车数据。`import_provenance` 至少保存文件校验和、来源引用、导入人、导入时间、校验报告与修订原因；不要在日志保存原始敏感明细。
+
+现有 COMPLETE 批次不自动覆盖；相同口径同月冲突应拒绝。修订需新增可追溯版本并明确有效版本切换及跨版本读取策略，不直接改已归档车辆。版本切换功能属于后续导入工作，本次只提供存储空间及契约。
+
+仅三个汇总数字的文件不符合逐车导入规范，不能提供个人/部门历史明细。若将来支持汇总导入，需另设权限和“无明细”模型。
+
+## 交还业务回溯的本地回填
+
+2026-10-19 按用户确认的回溯核对表，将 **2022-06 至 2026-09 共52个月、22,319条车辆月度记录** 发布到本地私有 JSON 文件。原始核查资料截至北京时间 `2026-10-19 14:38:33`。2026-10 未结期不回填，继续走当前实时查询。未向真实数据库建表、插入或更新。
+
+这批数据保留 `HANDOVER_REVIEW_V1` 方法、核对表文件名与 SHA-256、原始核查时间、逐车交还单号、业务时间、分类依据及未判状态数量。车辆 ID 使用字符串，候选车辆的车牌/VIN来自交还单原值；未用当前台账补公司、部门、负责人、客户或未知运营状态。
+
+它是独立的 **RECONSTRUCTED（历史回溯·估算）** 来源，不发布为 `AUTO` / `IMPORT` 正式快照，也不填写月末实际采集时间。`counts` 为 `null`；运营/库存推算数、未分类数、当前已退出子集和来源信息在 `point.reconstruction` 中返回。总数折线保持空白，页面明确显示“总数待核实”。正式归档始终优先，不覆盖已有归档或归档失败诊断。
+
+权限单独收紧：只有当前全量权限且未选择公司时可读取这批估算。它缺少可靠历史主体和个人/部门归属，不能按今天的车辆权限、公司或库存状态补足历史授权。部门、个人及公司筛选继续显示原有正式快照或空白；直接访问回溯明细、篡改批次或公司参数也不能放宽权限。正式归档和实时数据原有权限规则不变。
+
+年度仅复用各年12月的回溯记录。相邻两个回溯点可比较推算运营/库存，不计算总数差值；回溯点与实时或正式快照不作差，防止把不同覆盖范围的差异显示为业务增长。回溯明细支持分类、搜索、分页，汇总与逐车记录在加载前对平；未知归属明确标为“历史未提供”。
+
+显式本地发布命令（没有数据库依赖，默认只校验）：
+
+```sh
+node --import tsx scripts/backfill-asset-reconstruction.ts --input /private/reviewed-reconstruction.json
+node --import tsx scripts/backfill-asset-reconstruction.ts --input /private/reviewed-reconstruction.json --output /private/asset-history/reconstruction-v1.json --apply
+```
+
+数据文件格式为 `ReconstructionData`（`src/server/routes/asset-history/reconstruction.ts`）。必须提供来源及文件校验和，每月车辆唯一、逐车分类与计数对齐、参考月份早于原始核查时间。合法的0与未知总数区分。发布使用私有文件权限和原子创建；相同内容幂等，不同内容拒绝覆盖。文件不能放入公开静态目录或源码目录。
+
+启动时显式设置 `ASSET_HISTORY_RECONSTRUCTION_FILE` 为已发布文件的绝对路径；没有该变量时不读取估算数据。不会启用自动采集、初始化快照表或运行其他后台任务。读取结果在进程内缓存；修订时保留原文件和核对表，发布到新文件后更新变量并重启。回退时移除该变量并重启，正式归档及实时数据不受影响。本地验收启动脚本单独注入该变量，回退需同步移除该脚本的配置。
+
+本地验收地址仍为 `http://127.0.0.1:3000/asset#assets`。当前仅本地回填，生产未部署、采集未启用；正式存储迁移及生产回填仍需明确指定目标和生产授权。
+
+## 验证入口
+
+```sh
+node --import tsx --test src/server/routes/asset-history/*.test.ts src/modules/assets/history/*.test.ts
+npm run lint
+npm test
+npm run build
+```
+
+单元、接口和事务故障测试只用模拟仓储与事务数据库替身，不访问真实数据库。开发启动若加载现有 `src/server/index.ts`，会执行其他模块的后台初始化；验收应使用隔离服务、不导入 bootstrap，并阻断所有数据库连接，避免顺带运行现有后台任务。
+
+## 本次交付验证（2026-10-19）
+
+- 新增 32 项针对性测试，全量 452 项通过；`npm run lint`、`npm test`、`npm run build`、`git diff --check` 均通过。
+- 构建仍报告部分现有重依赖分包超过 500 kB 的体积提示；不影响构建，本次不扩展为全站拆包重构。
+- 使用已有 Playwright Chromium（当前会话没有 Browser 插件），在 `http://127.0.0.1:3146/asset#assets` 隔离服务验收；测试服务未导入 bootstrap，数据库入口被阻断。该地址为临时验收环境，非生产部署。
+- 1440×1200、390×844 验证交互，补充 390×1400 截图。13 组浏览器检查通过：页面身份/非空/无框架错误、月度归档及明细、分页搜索、年度、缺失/未来/零值、公司筛选、请求竞态、实时刷新不重读历史、部门及个人权限、存储未部署、503 重试、原有资产分析、手机触摸及无横向溢出。
+- 浏览器无未解释的控制台错误或警告；模拟 503 的错误属于已验证的故障注入。最终验收记录中数据库访问尝试为 0。
+- 参考图的卡片、堆叠柱/折线和选中期间指标保留；历史曲线按真实归档缺失留空，不复制示例数值。顶部现有资产样式保留；手机明细使用卡片而非横向表格。
+- 迁移审阅命令已运行，未执行 `--apply`。事务、锁、故障和提交确认丢失在隔离数据库替身中验证，未向真实 MySQL 实例执行 DDL 或采集。生产迁移和启用需按上述授权步骤执行。
+- 当前交付状态：本地实现完成，未发布，自动采集默认关闭；正式逐车快照导入仅提供契约和模板。用户确认的交还业务回溯另用上述显式本地文件发布入口，不混入正式快照。
+- 回溯回填补充验证：新增8项测试，全量460项通过；类型检查与构建通过。52个月运营/库存与核对表逐月对齐，API明细分类数及分页核对通过。1440×1200、390×844完成月度、年度、明细、搜索分页、触摸、焦点关闭、公司范围及缺失月份验收；无未解释控制台错误、无横向溢出。本地只读保护记录的写入尝试为0，采集及后台任务均关闭。
@@ -0,0 +1,31 @@
+-- Explicit additive migration. No business tables are changed and no historical records are purged.
+CREATE TABLE IF NOT EXISTS bi_asset_ai_questions (
+  id CHAR(36) PRIMARY KEY,
+  actor_id VARCHAR(64) NOT NULL,
+  user_id VARCHAR(64) NOT NULL,
+  login_name VARCHAR(255) NOT NULL,
+  user_name VARCHAR(255) NOT NULL,
+  permission_level VARCHAR(24) NOT NULL,
+  is_preview TINYINT(1) NOT NULL DEFAULT 0,
+  preview_session_id VARCHAR(64) NULL,
+  session_id VARCHAR(64) NULL,
+  base_result_id VARCHAR(64) NULL,
+  result_id VARCHAR(64) NULL,
+  subject VARCHAR(150) NULL,
+  event_type VARCHAR(24) NOT NULL,
+  question TEXT NULL,
+  action_json JSON NULL,
+  outcome VARCHAR(24) NOT NULL,
+  reason VARCHAR(64) NULL,
+  business_types JSON NULL,
+  engine VARCHAR(24) NULL,
+  answer MEDIUMTEXT NULL,
+  started_at DATETIME(3) NOT NULL,
+  finished_at DATETIME(3) NULL,
+  duration_ms BIGINT UNSIGNED NULL,
+  KEY user_time (user_id, started_at),
+  KEY actor_time (actor_id, started_at),
+  KEY result_time (outcome, started_at),
+  KEY session_time (session_id, started_at),
+  KEY event_time (event_type, started_at)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
@@ -0,0 +1,43 @@
+-- Explicit migration only; API reads and module imports never create storage.
+CREATE TABLE IF NOT EXISTS bi_asset_history_settings (
+  id TINYINT NOT NULL PRIMARY KEY,
+  enabled_at DATETIME(3) NOT NULL,
+  CONSTRAINT chk_asset_history_singleton CHECK (id = 1)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS bi_asset_history_batches (
+  id VARCHAR(36) NOT NULL PRIMARY KEY,
+  period_month CHAR(7) NOT NULL,
+  definition_version VARCHAR(32) NOT NULL,
+  scheduled_for DATETIME(3) NOT NULL,
+  captured_at DATETIME(3) NULL,
+  completed_at DATETIME(3) NULL,
+  timezone VARCHAR(32) NOT NULL DEFAULT 'Asia/Shanghai',
+  source ENUM('AUTO','IMPORT') NOT NULL,
+  status ENUM('COMPLETE','FAILED','MISSED') NOT NULL,
+  failure_code VARCHAR(64) NULL,
+  total_count INT UNSIGNED NOT NULL DEFAULT 0,
+  operating_count INT UNSIGNED NOT NULL DEFAULT 0,
+  inventory_count INT UNSIGNED NOT NULL DEFAULT 0,
+  import_provenance JSON NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  UNIQUE KEY uk_asset_history_period (period_month, definition_version),
+  KEY idx_asset_history_status (status, period_month),
+  CONSTRAINT chk_asset_history_counts CHECK (total_count = operating_count + inventory_count)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS bi_asset_history_vehicles (
+  batch_id VARCHAR(36) NOT NULL,
+  vehicle_id VARCHAR(64) NOT NULL,
+  operation_status VARCHAR(50) NOT NULL,
+  vehicle_status VARCHAR(50) NULL,
+  disposition ENUM('operating','inventory') NOT NULL,
+  subject_org VARCHAR(500) NULL,
+  department_name VARCHAR(500) NULL,
+  manager_id VARCHAR(64) NULL,
+  frozen_vehicle JSON NOT NULL,
+  PRIMARY KEY (batch_id, vehicle_id),
+  KEY idx_asset_history_subject (batch_id, subject_org(128)),
+  KEY idx_asset_history_manager (batch_id, manager_id),
+  CONSTRAINT fk_asset_history_batch FOREIGN KEY (batch_id) REFERENCES bi_asset_history_batches (id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
@@ -1,12 +1,12 @@
 {
  "name": "ln-bi",
-  "version": "1.1.19",
+  "version": "1.1.21",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "ln-bi",
-      "version": "1.1.19",
+      "version": "1.1.21",
      "dependencies": {
        "@amap/amap-jsapi-loader": "^1.0.1",
        "@hono/node-server": "^1.13.0",
@@ -1,7 +1,7 @@
 {
  "name": "ln-bi",
  "private": true,
-  "version": "1.1.19",
+  "version": "1.1.21",
  "type": "module",
  "scripts": {
    "dev": "concurrently -n server,client -c blue,green \"npm run dev:server\" \"npm run dev:client\"",
@@ -0,0 +1,20 @@
+// Does not load dotenv, database pools, application bootstrap or background jobs.
+import { readFile } from 'node:fs/promises';
+import { resolve, relative, sep } from 'node:path';
+import { publishReconstruction, validateReconstruction } from '../src/server/routes/asset-history/reconstruction.js';
+const args = process.argv.slice(2);
+const inputIndex = args.indexOf('--input'), outputIndex = args.indexOf('--output');
+if (inputIndex < 0 || !args[inputIndex + 1]) throw new Error('需要 --input 指定已确认的回溯文件');
+const data = validateReconstruction(JSON.parse(await readFile(resolve(args[inputIndex + 1]), 'utf8')));
+console.log(JSON.stringify({ action: args.includes('--apply') ? 'local-file-publication' : 'dry-run', months: data.periods.length,
+  firstMonth: data.periods[0]?.month, lastMonth: data.periods.at(-1)?.month, sourceAsOf: data.sourceAsOf,
+  workbookSha256: data.workbookSha256, historicalTotal: null, databaseWrites: 0 }));
+if (args.includes('--apply')) {
+  if (outputIndex < 0 || !args[outputIndex + 1]) throw new Error('需要 --output 指定本地私有存储位置');
+  const output = resolve(args[outputIndex + 1]);
+  for (const folder of ['public', 'dist', 'src']) {
+    const within = relative(resolve(folder), output);
+    if (!within || (!within.startsWith(`..${sep}`) && within !== '..' && !within.startsWith(sep))) throw new Error('回溯文件必须保存于源码及公开静态目录之外');
+  }
+  console.log(await publishReconstruction(output, data));
+}
@@ -0,0 +1,16 @@
+import { readFile } from 'node:fs/promises';
+// Import the pool only after an explicit apply flag, to avoid accidental connections in review mode.
+const sql = await readFile(new URL('../migrations/20260928_asset_ai_questions.sql', import.meta.url), 'utf8');
+if (!process.argv.includes('--apply')) {
+  console.log(sql);
+  console.log('Review only. To create this audit table in the configured DB, pass --apply.');
+} else {
+  const { default: pool } = await import('../src/server/db.js');
+  try {
+    await pool.query(sql);
+    const [rows] = await pool.query('SELECT COUNT(*) AS columns_count FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name=?', ['bi_asset_ai_questions']);
+    console.log('AI question audit table ready.', rows);
+  } finally {
+    await pool.end();
+  }
+}
@@ -0,0 +1,12 @@
+import { readFile } from 'node:fs/promises';
+const sql = await readFile(new URL('../migrations/20261019_asset_history.sql', import.meta.url), 'utf8');
+if (!process.argv.includes('--apply')) {
+  console.log(sql);
+  console.log('Review only. Pass --apply only after approving the configured database migration.');
+} else {
+  const { default: pool } = await import('../src/server/db.js');
+  try {
+    for (const statement of sql.split(/;\s*(?:\n|$)/).filter(s => s.trim())) await pool.query(statement);
+    console.log('Asset history schema ready. Capture is still disabled unless ASSET_HISTORY_CAPTURE_ENABLED=1.');
+  } finally { await pool.end(); }
+}
@@ -102,6 +102,10 @@ export default function AssetsModule() {
  // 所属公司（归属主体）筛选 —— 影响全页聚合
  const [selectedSubject, setSelectedSubject] = useState<string | null>(null);
  const [subjects, setSubjects] = useState<SubjectOption[]>([]);
+  const [historySubjects, setHistorySubjects] = useState<string[]>([]);
+  const updateHistorySubjects = useCallback((names: string[]) => setHistorySubjects(names), []);
+  const subjectOptions = useMemo(() => [...subjects, ...historySubjects.filter(name => !subjects.some(s => s.name === name))
+    .map(name => ({ name, total: 0, operating: 0, inventory: 0, historicalOnly: true }))], [subjects, historySubjects]);
  const [subjectDropdownOpen, setSubjectDropdownOpen] = useState(false);
  const [subjectSearch, setSubjectSearch] = useState('');
  const subjectDropdownRef = useRef<HTMLDivElement>(null);
@@ -485,7 +489,7 @@ export default function AssetsModule() {
        loading={loading}
        selectedSubject={selectedSubject}
        setSelectedSubject={setSelectedSubject}
-        subjects={subjects}
+        subjects={subjectOptions}
        subjectDropdownOpen={subjectDropdownOpen}
        setSubjectDropdownOpen={setSubjectDropdownOpen}
        subjectSearch={subjectSearch}
@@ -504,6 +508,8 @@ export default function AssetsModule() {

        {tabReady && activeTab === 'overview' && (
          <OverviewView
+            selectedSubject={selectedSubject}
+            onHistorySubjects={updateHistorySubjects}
            summary={SUMMARY}
            operatingRate={operatingRate}
            inventoryRate={inventoryRate}
@@ -12,6 +12,7 @@ import { fetchJson } from '../../auth/api-client';
 const BASE = '/api/vehicles';

 export interface SubjectOption {
+  historicalOnly?: boolean;
  name: string;
  total: number;
  inventory: number;
@@ -34,7 +34,9 @@ import { useAuth } from "../../../auth/useAuth";
 import { ThinkingState } from "./ThinkingState";
 import { CompoundResultView } from "./CompoundResultView";
 import { BUSINESS_QUESTIONS, conversationTitle, findConversationResult, replaceAnalysisResult } from "./conversation-presentation";
+import { useMobileLayout } from "../useMobileLayout";
 import "./assistant.css";
+import "./mobile-assistant.css";

 type Turn = {
  id: number;
@@ -55,24 +57,28 @@ const PROMPTS = [
  {
    icon: BarChart3,
    title: "现在多少车在运营、多少车在库存？",
+    mobileTitle: "运营与库存",
    text: BUSINESS_QUESTIONS[0],
    detail: "总资产 · 运营 · 库存 · 运营率",
  },
  {
    icon: Truck,
    title: "库存集中在哪些车型和区域？",
+    mobileTitle: "库存分布",
    text: BUSINESS_QUESTIONS[1],
    detail: "库存分布 · 继续查看车辆",
  },
  {
    icon: History,
    title: "最近7天交车、还车分别多少？",
+    mobileTitle: "近 7 天交还车",
    text: BUSINESS_QUESTIONS[2],
    detail: "按日趋势 · 业务明细",
  },
  {
    icon: ListIcon,
    title: "有哪些车辆需要跟进？",
+    mobileTitle: "待跟进车辆",
    text: BUSINESS_QUESTIONS[3],
    detail: "异动详情 · 预计完成时间",
  },
@@ -94,6 +100,8 @@ export default function AssetAssistant({
  const dataScopeLabel = !user ? "正在确认数据范围"
    : user.permissionLevel === "full" ? "全量数据"
    : user.permissionLevel === "department" ? "部门数据" : "本人数据";
+  const mobile = useMobileLayout();
+  const [contextExpanded, setContextExpanded] = useState(false);
  const page = useRef<HTMLElement>(null);
  useLayoutEffect(() => {
    const viewport = window.visualViewport;
@@ -557,7 +565,7 @@ export default function AssetAssistant({
                      <p.icon size={18} aria-hidden="true" />
                      <ArrowUpRight size={14} aria-hidden="true" />
                    </div>
-                    <strong>{p.title}</strong>
+                    <strong>{mobile ? p.mobileTitle : p.title}</strong>
                    <span>{p.detail}</span>
                  </button>
                ))}
@@ -745,7 +753,7 @@ export default function AssetAssistant({
          )}
        </div>
        <div className="aq-composer-area">
-          {turns.length > 0 && (
+          {turns.length > 0 && (!mobile || (viewedTurn !== undefined && viewedTurn !== turns.at(-1)?.id)) && (
            <button
              className="aq-latest-answer"
              onClick={() => revealTurn(turns[turns.length - 1].id)}
@@ -754,8 +762,8 @@ export default function AssetAssistant({
            </button>
          )}
          {lastPlan && (
-            <div className="aq-context">
-              <span>正在分析</span>
+            <details className="aq-context-disclosure" open={!mobile || contextExpanded} onToggle={event => { if (mobile) setContextExpanded(event.currentTarget.open); }}><summary><span>追问范围：{lastPlan.kind === 'flow' ? '交还车' : CATEGORY_LABELS[lastPlan.category]}{Object.keys(lastPlan.filters).length ? ` · ${Object.entries(lastPlan.filters).map(([dimension,values]) => `${GROUP_LABELS[dimension as Dimension]} ${values.length === 1 ? values[0] : `${values.length}项`}`).join(' · ')}` : ''}</span><ChevronDown size={15} /></summary><div className="aq-context">
+              <span className="aq-context-heading">当前条件</span>
              <span>
                {lastPlan.kind === "flow"
                  ? "交退换车"
@@ -847,7 +855,7 @@ export default function AssetAssistant({
                <Plus size={12} />
                换个话题
              </button>
-            </div>
+            </div></details>
          )}
          {independent && (
            <p className="aq-topic-notice">
@@ -6,6 +6,8 @@ import type {
 } from "../../../shared/assets/assistant";
 import { ResultView, type ResultViewProps } from "./ResultView";
 import { GenerativeResultView } from "./GenerativeResultView";
+import { useMobileLayout } from '../useMobileLayout';
+import { mobileResultSummary } from './mobile-presentation';
 import { copyResultText } from "./result-presentation";

 export type CompoundResultViewProps = Omit<
@@ -34,6 +36,7 @@ export function CompoundResultView({
  activate,
  ...props
 }: CompoundResultViewProps) {
+  const mobile = useMobileLayout();
  const [selection, setSelection] = useState<{
    sectionId: string;
    observedActiveId?: string;
@@ -72,7 +75,7 @@ export function CompoundResultView({
    externallyActive ||
    sections[0];
  const selectedIndex = sections.indexOf(selected);
-  const stacked = result.layout === "stack";
+  const stacked = result.layout === "stack" && !mobile;
  const renderSection = (section: typeof selected) => {
    const child = section.result;
    const correction = child?.resultId
@@ -120,11 +123,11 @@ export function CompoundResultView({
        className="aq-compound-heading"
        id={result.resultId ? `aq-query-${result.resultId}` : undefined}
      >
-        <div>
+        <div className="aq-compound-title">
          <strong>{result.title || "综合分析"}</strong>
          <span>{sections.length}项分析</span>
        </div>
-        <p id={result.resultId ? `aq-answer-${result.resultId}` : undefined}>
+        <p className={mobile ? "aq-mobile-compound-summary" : undefined} id={result.resultId ? `aq-answer-${result.resultId}` : undefined}>
          {result.summary}
        </p>
      </header>
@@ -219,7 +222,7 @@ export function CompoundResultView({
                <span className="aq-section-preview">
                  <strong>{section.title}</strong>
                  <span>
-                    {section.result?.summary || section.error || "本项暂无结果"}
+                    {section.result ? (mobile ? mobileResultSummary(section.result) : section.result.summary) : section.error || "本项暂无结果"}
                  </span>
                </span>
                {chosen ? <Check size={14} /> : <ArrowUpRight size={14} />}
@@ -45,6 +45,10 @@ import {
  type PresentationDatum,
 } from "./generative-presentation";

+import { useMobileLayout } from '../useMobileLayout';
+import { mobileBlockGroups, mobileResultSummary } from './mobile-presentation';
+import { ResultActions } from './ResultActions';
+
 const COLORS = [
  "#4e806a",
  "#527da5",
@@ -69,6 +73,7 @@ function DataTable({
  operate,
  disabled,
 }: DataBlockProps) {
+  const mobile = useMobileLayout();
  const [page, setPage] = useState(0);
  const data = presentationData(result, block.dataset);
  const columns = presentationFields(block);
@@ -78,7 +83,16 @@ function DataTable({
  );
  return (
    <>
-      <div className="aq-table-scroll">
+      {mobile ? <div className="aq-mobile-data-list" aria-label={block.title || '分析数据'}>{data.slice(currentPage * 8, currentPage * 8 + 8).map((row, index) => {
+        const action = presentationAction(interaction, row);
+        const vehicle = block.dataset === 'rows' && columns.some(column => column.field === 'plate');
+        const primary = vehicle ? columns.filter(column => ['plate', 'status', 'event', 'vehicleClass', 'type', 'city'].includes(column.field)) : columns.slice(0, 3);
+        const extra = columns.filter(column => !primary.includes(column));
+        return <article className="aq-mobile-data-row" key={String(row.id ?? row.name ?? row.date ?? row.label ?? index)}>
+          {vehicle ? <><div className="aq-mobile-record-heading"><strong>{presentationValue(row.plate, 'plate')}</strong><span>{primary.filter(column => ['status', 'event'].includes(column.field)).map(column => presentationValue(row[column.field], column.field)).join(' · ')}</span></div><p>{primary.filter(column => !['plate', 'status', 'event'].includes(column.field)).map(column => presentationValue(row[column.field], column.field)).join(' · ')}</p></> : <div className="aq-mobile-data-values">{primary.map(column => <div key={column.field}><span>{column.label}</span><strong>{presentationValue(row[column.field], column.field)}</strong></div>)}</div>}
+          {(extra.length > 0 || action) && <div className="aq-mobile-data-footer">{extra.length > 0 && <details><summary>更多字段</summary><dl>{extra.map(column => <div key={column.field}><dt>{column.label}</dt><dd>{presentationValue(row[column.field], column.field)}</dd></div>)}</dl></details>}{action && <button disabled={disabled} aria-label={`${datumName(row)} · ${interaction!.label}`} onClick={() => operate(action, `${datumName(row)} · ${interaction!.label}`)}>继续分析<ArrowUpRight size={15} /></button>}</div>}
+        </article>;
+      })}</div> : <div className="aq-table-scroll">
        <table>
          <caption className="aq-sr-only">{block.title || "分析数据"}</caption>
          <thead>
@@ -132,7 +146,7 @@ function DataTable({
              })}
          </tbody>
        </table>
-      </div>
+      </div>}
      {data.length > 8 && (
        <div className="aq-generated-pagination">
          <span>
@@ -159,6 +173,7 @@ function DataTable({
  );
 }
 function DataChart(props: DataBlockProps) {
+  const mobile = useMobileLayout();
  const { block, result, interaction, operate, disabled } = props;
  const [expanded, setExpanded] = useState(false);
  const allData = presentationData(result, block.dataset);
@@ -186,6 +201,15 @@ function DataChart(props: DataBlockProps) {
  };
  if (!series.length) return <DataTable {...props} />;
  const common = { data, margin: { top: 8, right: 16, bottom: 0, left: 0 } };
+  if (mobile && (block.chart === 'bar' || (block.chart === 'donut' && block.dataset === 'groups')) && series.length === 1 && allData.every(row => typeof row[series[0].field] === 'number' && Number(row[series[0].field]) >= 0)) {
+    const field = series[0].field;
+    const max = Math.max(1, ...allData.map(row => typeof row[field] === 'number' ? Math.abs(row[field] as number) : 0));
+    return <div className="aq-mobile-ranking" aria-label={block.title || '分组图表'}>{(expanded ? allData : allData.slice(0, 5)).map((row, index) => {
+      const action = presentationAction(interaction, row);
+      const content = <><span className="aq-mobile-ranking-line"><span>{datumName(row)}</span><strong>{presentationValue(row[field], field)}</strong>{action && <ArrowUpRight size={15} />}</span><span className="aq-mobile-ranking-track"><span style={{ width: `${Math.abs(Number(row[field]) || 0) / max * 100}%` }} /></span></>;
+      return action ? <button key={index} disabled={disabled} aria-label={`${datumName(row)} · ${interaction!.label}`} onClick={() => explore(row)}>{content}</button> : <div className="aq-mobile-ranking-item" key={index}>{content}</div>;
+    })}{allData.length > 5 && <button className="aq-generated-expand" onClick={() => setExpanded(!expanded)}>{expanded ? '收起分组' : `查看全部 ${allData.length} 项`}</button>}</div>;
+  }
  return (
    <>
      <div
@@ -294,7 +318,7 @@ function DataChart(props: DataBlockProps) {
              : `当前展示前5项 · 查看全部${allData.length}项`}
          </button>
        )}
-      <details className="aq-generated-data">
+      {!mobile && <details className="aq-generated-data">
        <summary>查看图表数据</summary>
        <DataTable
          {...props}
@@ -309,7 +333,7 @@ function DataChart(props: DataBlockProps) {
            ],
          }}
        />
-      </details>
+      </details>}
    </>
  );
 }
@@ -319,6 +343,9 @@ function Block({
  operate,
  disabled,
 }: Omit<DataBlockProps, "interaction">) {
+  const mobile = useMobileLayout();
+  const [expandedMetrics, setExpandedMetrics] = useState(false);
+  const metrics = presentationMetrics(result, block.metrics);
  const interaction = result.presentation?.interactions.find(
    (item) => item.id === block.interactionId,
  );
@@ -345,8 +372,8 @@ function Block({
      ) : block.kind === "narrative" ? (
        <p className="aq-generated-narrative">{block.text}</p>
      ) : block.kind === "metrics" ? (
-        <div className="aq-generated-metrics">
-          {presentationMetrics(result, block.metrics).map((metric) => (
+        <><div className="aq-generated-metrics">
+          {(mobile && !expandedMetrics ? metrics.slice(0, 4) : metrics).map((metric) => (
            <div key={metric.label}>
              <span>{metric.label}</span>
              <strong>
@@ -355,10 +382,10 @@ function Block({
              </strong>
            </div>
          ))}
-        </div>
+        </div>{mobile && metrics.length > 4 && <button className="aq-generated-expand" onClick={() => setExpandedMetrics(!expandedMetrics)}>{expandedMetrics ? '收起指标' : `其余 ${metrics.length - 4} 项指标`}</button>}</>
      ) : (
        <>
-          {interaction && (
+          {interaction && !mobile && (
            <p className="aq-generated-interaction">
              点击{block.dataset === "daily" ? "日期" : "数据项"} →{" "}
              {interaction.label}
@@ -391,6 +418,12 @@ function Block({
  );
 }

+function MobileDataBlock({ block, table, ...props }: Omit<DataBlockProps, 'interaction'> & { table?: PresentationBlock }) {
+  const [view, setView] = useState<'chart' | 'table'>('chart');
+  const tableBlock: PresentationBlock = table || { ...block, kind: 'table', columns: block.columns || [{ field: block.dataset === 'daily' ? 'date' : block.dataset === 'comparison' ? 'label' : 'name', label: block.dataset === 'daily' ? '日期' : '分组' }, ...presentationSeries(block)] };
+  return <section className="aq-mobile-visual"><div className="aq-mobile-visual-header"><h4>{block.title || '数据分析'}</h4><div aria-label="图表与明细"><button aria-pressed={view === 'chart'} onClick={() => setView('chart')}>图表</button><button aria-pressed={view === 'table'} onClick={() => setView('table')}>明细</button></div></div><Block {...props} block={{ ...(view === 'chart' ? block : tableBlock), title: undefined }} /></section>;
+}
+
 function GenerativeResultViewContent({
  result,
  operate,
@@ -403,6 +436,7 @@ function GenerativeResultViewContent({
  correctionResultId,
  showCorrection,
 }: ResultViewProps) {
+  const mobile = useMobileLayout();
  const [noticeByResult, setNoticeByResult] = useState<{
    key: string;
    text: string;
@@ -536,7 +570,7 @@ function GenerativeResultViewContent({
          已纠正上一条回答：{result.correction.message}
        </p>
      )}
-      {presentation.title && (
+      {!mobile && presentation.title && (
        <h3 className="aq-generated-title">{presentation.title}</h3>
      )}
      {result.outcome === "empty" && (
@@ -552,15 +586,11 @@ function GenerativeResultViewContent({
      {result.outcome === "unsupported" && (
        <p className="aq-generated-notice">本次需求暂不能完整生成。</p>
      )}
-      {presentation.blocks.map((block) => (
-        <Block
-          key={block.id}
-          block={block}
-          result={result}
-          operate={operate}
-          disabled={disabled || !!correctionMessage}
-        />
-      ))}
+      {mobile ? <>
+        <p className="aq-answer aq-mobile-lead" id={result.resultId ? `aq-answer-${result.resultId}` : undefined}>{mobileResultSummary(result)}</p>
+        {mobileBlockGroups(presentation.blocks).filter(({ block }) => block.kind !== 'summary' && block.kind !== 'narrative').map(({ block, table }) => block.kind === 'chart' ? <MobileDataBlock key={block.id} block={block} table={table} result={result} operate={operate} disabled={disabled || !!correctionMessage} /> : <Block key={block.id} block={block} result={result} operate={operate} disabled={disabled || !!correctionMessage} />)}
+        <details className="aq-secondary-details"><summary>分析说明</summary><p>{result.summary}</p>{presentation.blocks.filter(block => (block.kind === 'summary' || block.kind === 'narrative') && block.text && block.text !== result.summary).map(block => <p key={block.id}>{block.text}</p>)}</details>
+      </> : presentation.blocks.map((block) => <Block key={block.id} block={block} result={result} operate={operate} disabled={disabled || !!correctionMessage} />)}
      {!!result.unanswered?.length && (
        <div className="aq-compound-unanswered">
          <strong>尚未回答</strong>
@@ -611,7 +641,12 @@ function GenerativeResultViewContent({
          {result.contextNote && <p>{result.contextNote}</p>}
          <p>来源：{result.source}</p>
        </details>
-        <div className="aq-answer-actions">
+        <ResultActions primary={<button
+            disabled={disabled || active || !!correctionMessage}
+            onClick={activate}
+          >
+            {mobile ? (active ? "当前追问范围" : "继续追问") : (active ? "正在基于此结果追问" : "基于此结果追问")}
+          </button>}>
          <button
            disabled={disabled || saving}
            onClick={() => void save("export")}
@@ -619,12 +654,7 @@ function GenerativeResultViewContent({
            <ArrowDownToLine size={14} />
            导出明细
          </button>
-          <button
-            disabled={disabled || active || !!correctionMessage}
-            onClick={activate}
-          >
-            {active ? "正在基于此结果追问" : "基于此结果追问"}
-          </button>
+
          <button
            disabled={saving || flagged}
            onClick={() => void save("feedback")}
@@ -642,7 +672,7 @@ function GenerativeResultViewContent({
            <Copy size={14} />
            复制完整结果
          </button>
-        </div>
+        </ResultActions>
        {notice && (
          <p className="aq-notice" role="status">
            {notice}
@@ -0,0 +1,8 @@
+import type { ReactNode } from 'react';
+import { MoreHorizontal } from 'lucide-react';
+import { useMobileLayout } from '../useMobileLayout';
+
+export function ResultActions({ children, primary }: { children: ReactNode; primary?: ReactNode }) {
+  const mobile = useMobileLayout();
+  return mobile ? <div className="aq-mobile-actions">{primary}<details className="aq-more-actions"><summary><MoreHorizontal size={18} />更多</summary><div className="aq-answer-actions">{children}</div></details></div> : <div className="aq-answer-actions">{primary}{children}</div>;
+}
@@ -26,7 +26,12 @@ import {
  compactAnalysisPath,
 } from "./result-presentation";

+import { useMobileLayout } from '../useMobileLayout';
+import { mobileResultSummary } from './mobile-presentation';
+import { ResultActions } from './ResultActions';
+
 function Records({ rows, flow }: { rows: AssistantRow[]; flow: boolean }) {
+  const mobile = useMobileLayout();
  const [page, setPage] = useState(0),
    [search, setSearch] = useState("");
  const filtered = rows.filter((r) =>
@@ -52,7 +57,7 @@ function Records({ rows, flow }: { rows: AssistantRow[]; flow: boolean }) {
        </label>
        <span>{filtered.length}条</span>
      </div>
-      <div className="aq-table-scroll">
+      {mobile ? <div className="aq-mobile-data-list" aria-label="车辆明细">{filtered.slice(current * 8, current * 8 + 8).map(r => <article className="aq-mobile-data-row" key={r.id}><div className="aq-mobile-record-heading"><strong>{r.plate || '未登记车牌'}</strong><span>{flow ? r.event : r.status}</span></div><p>{r.type} · {r.city || '未标注城市'}</p><details><summary>更多资料</summary><dl>{[['型号', r.model], ['部门', r.department], ...(flow ? [['日期', r.date]] : [['库存子集', r.abnormal ? '异动' : r.pending ? '待交车' : '—'], ['异动类型', r.abnormalType], ['预计完成时间', r.targetCompletionTime]])].map(([label,value]) => <div key={label}><dt>{label}</dt><dd>{value || '—'}</dd></div>)}</dl></details></article>)}</div> : <div className="aq-table-scroll">
        <table>
          <thead>
            <tr>
@@ -90,7 +95,7 @@ function Records({ rows, flow }: { rows: AssistantRow[]; flow: boolean }) {
            ))}
          </tbody>
        </table>
-      </div>
+      </div>}
      {!filtered.length && <p className="aq-no-data">没有符合条件的明细</p>}
      <div className="aq-pagination">
        <span>
@@ -148,6 +153,7 @@ function ResultViewContent({
  showCorrection,
  display: preferredDisplay,
 }: ResultViewProps) {
+  const mobile = useMobileLayout();
  const [expandedGroupResult, setExpandedGroupResult] = useState<string | null>(
      null,
    ),
@@ -360,7 +366,7 @@ function ResultViewContent({
        className="aq-answer"
        id={result.resultId ? `aq-answer-${result.resultId}` : undefined}
      >
-        {result.summary}
+        {mobile ? mobileResultSummary(result) : result.summary}
      </p>
      {!result.conciseCount && !!visibleMetrics.length && (
        <div className="aq-metrics aq-primary-metrics">
@@ -790,6 +796,8 @@ function ResultViewContent({
                      点击分组继续下钻 · 筛选条件自动用于下一次追问
                    </p>
                  </div>
+                ) : mobile ? (
+                  <div className="aq-mobile-data-list" aria-label="分组明细">{result.groups.map(g => <article className="aq-mobile-data-row" key={JSON.stringify(g.keys)}><div className="aq-mobile-data-values"><div><span>分组</span><strong>{g.name}</strong></div><div><span>车辆数</span><strong>{g.count}</strong></div><div><span>占比</span><strong>{g.share == null ? '—' : `${g.share}%`}</strong></div></div><div className="aq-mobile-data-footer">{plan.category !== 'operating' && <details><summary>更多指标</summary><p>运营率 {g.rate}% · 异动 {g.abnormal ?? '—'} · 待交车 {g.pending ?? '—'}</p></details>}<button disabled={disabled || !Object.keys(g.keys || {}).length} aria-label={`下钻${g.name}`} onClick={() => run({ type: 'drill', keys: g.keys || {} }, `下钻${g.name}`)}>继续分析<ArrowUpRight size={15} /></button></div></article>)}</div>
                ) : (
                  <div className="aq-table-scroll">
                    <table>
@@ -859,6 +867,7 @@ function ResultViewContent({
          <summary>
            统计口径、权限与数据时间{result.warning ? " · 有补充说明" : ""}
          </summary>
+          {mobile && <p>{result.summary}</p>}
          <p>
            公司：{scope.company} · 权限：{scope.permission}
          </p>
@@ -877,7 +886,14 @@ function ResultViewContent({
          ))}
          <p>来源：{result.source}</p>
        </details>
-        <div className="aq-answer-actions">
+        <ResultActions primary={plan.kind !== "clarify" && (
+            <button
+              disabled={disabled || active || !!correctionMessage}
+              onClick={activate}
+            >
+              {mobile ? (active ? "当前追问范围" : "继续追问") : (active ? "正在基于此结果追问" : "基于此结果追问")}
+            </button>
+          )}>
          {plan.kind !== "clarify" && (!result.conciseCount || result.metrics[0]?.value > 0) && (
            <button
              disabled={disabled || saving}
@@ -888,14 +904,7 @@ function ResultViewContent({
              导出明细
            </button>
          )}
-          {plan.kind !== "clarify" && (
-            <button
-              disabled={disabled || active || !!correctionMessage}
-              onClick={activate}
-            >
-              {active ? "正在基于此结果追问" : "基于此结果追问"}
-            </button>
-          )}
+
          <button disabled={saving || flagged} onClick={() => void flag()}>
            {flagged ? "已记录" : "未解决我的问题"}
          </button>
@@ -910,7 +919,7 @@ function ResultViewContent({
            <Copy size={14} />
            复制完整结果
          </button>
-        </div>
+        </ResultActions>
        {notice && (
          <p className="aq-notice" role="status">
            {notice}
@@ -3,6 +3,8 @@
 import { useEffect, useId, useState } from "react";
 import { Check, ChevronDown, CircleAlert, LoaderCircle, Pause, Sparkles } from "lucide-react";

+import { useMobileLayout } from '../useMobileLayout';
+
 export function ThinkingState({
  steps,
  working,
@@ -18,6 +20,7 @@ export function ThinkingState({
  stopped?: boolean;
  outcome?: string;
 }) {
+  const mobile = useMobileLayout();
  const traceId = useId();
  const [manualExpanded, setExpanded] = useState<boolean | null>(null);
  const [elapsed, setElapsed] = useState(0);
@@ -28,7 +31,7 @@ export function ThinkingState({
    const timer = window.setInterval(update, 1000);
    return () => window.clearInterval(timer);
  }, [working, started]);
-  const expanded = manualExpanded ?? working;
+  const expanded = manualExpanded ?? (working && !mobile);
  const StatusIcon = working ? LoaderCircle : stopped ? Pause : failed ? CircleAlert : Sparkles;
  return (
    <div className={`aq-thinking${working ? " aq-thinking-working" : ""}`} data-state={working ? "working" : stopped ? "stopped" : failed ? "failed" : "complete"}>
@@ -41,7 +44,7 @@ export function ThinkingState({
        <StatusIcon size={16} className={working ? "aq-spin" : ""} aria-hidden="true" />
        <span className={`aq-thinking-title${working ? " aq-shimmer" : ""}`}>
          {working
-            ? "正在分析"
+            ? (mobile ? steps.at(-1) || "正在分析" : "正在分析")
            : stopped
              ? "已由用户停止"
              : failed
@@ -0,0 +1,122 @@
+/* Mobile presentation only. Keep desktop analysis density unchanged. */
+.aq-context-disclosure > summary { display: none; }
+@media (max-width: 767px) {
+  .aq-page { font-size: 14px; }
+  .aq-page .aq-turns { padding: 16px 16px 24px; }
+  .aq-page .aq-result, .aq-page .aq-compound-result { margin-left: 0; }
+  .aq-page .aq-question { margin-bottom: 16px; }
+  .aq-page .aq-question p { font-size: 15px; line-height: 1.65; }
+  .aq-page .aq-thinking { border: 0; border-radius: 8px; padding: 0 8px; margin-bottom: 8px; }
+  .aq-page .aq-thinking > button { font-size: 13px; }
+  .aq-page .aq-thinking-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+  .aq-page .aq-thinking-meta { font-size: 12px; }
+  .aq-page .aq-query-heading { position: static; padding: 4px 0 8px; margin-bottom: 10px; }
+  .aq-page .aq-current-path { flex-wrap: wrap; overflow: visible; font-size: 13px; gap: 4px 6px; }
+  .aq-page .aq-current-path > span { flex-shrink: 1; white-space: normal; }
+  .aq-page .aq-current-path > .aq-path-current { position: static; }
+  .aq-page .aq-query-navigation { flex-wrap: wrap; font-size: 12px; }
+  .aq-page .aq-query-navigation > span { font-size: 12px; }
+  .aq-page .aq-query-navigation > button, .aq-page .aq-path-history > summary { min-height: 44px; font-size: 13px; }
+  .aq-page .aq-path-history nav button { min-height: 44px; font-size: 13px; }
+  .aq-page .aq-result .aq-answer { font-size: 15px; line-height: 1.75; margin: 0 0 12px; }
+  .aq-page .aq-generated-block { margin: 12px 0; }
+  .aq-page .aq-generated-block h4 { font-size: 14px; }
+  .aq-page .aq-generated-metrics, .aq-page .aq-primary-metrics,
+  .aq-page .aq-primary-metrics:has(> div:nth-child(4):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
+  .aq-page .aq-generated-metrics > div { padding: 10px 12px; border: 0; border-radius: 8px; }
+  .aq-page .aq-generated-metrics span, .aq-page .aq-metrics span { font-size: 13px; line-height: 1.5; }
+  .aq-page .aq-generated-metrics strong, .aq-page .aq-metrics strong { font-size: 26px; margin-top: 3px; }
+  .aq-page .aq-generated-metrics small, .aq-page .aq-metrics small { font-size: 12px; }
+  .aq-page .aq-primary-metrics > div { border: 0; padding: 8px 10px !important; background: var(--aq-inset); border-radius: 8px; }
+  .aq-mobile-visual { margin: 12px 0; border: 1px solid var(--aq-line); border-radius: 10px; padding: 4px 12px 8px; }
+  .aq-mobile-visual-header { display: flex; align-items: center; gap: 8px; justify-content: space-between; }
+  .aq-mobile-visual-header > h4 { font-size: 14px; font-weight: 600; margin: 0; min-width: 0; }
+  .aq-mobile-visual-header > div { display: flex; flex-shrink: 0; gap: 2px; }
+  .aq-mobile-visual-header button { min-height: 44px; min-width: 44px; padding: 5px 6px; font-size: 13px; color: var(--aq-muted); }
+  .aq-mobile-visual-header button[aria-pressed="true"] { color: var(--aq-accent); font-weight: 600; text-decoration: underline; text-underline-offset: 7px; }
+  .aq-mobile-ranking { display: grid; gap: 4px; }
+  .aq-mobile-ranking > button:not(.aq-generated-expand), .aq-mobile-ranking-item { width: 100%; min-height: 48px; display: block; padding: 6px 0; text-align: left; }
+  .aq-mobile-ranking-line { display: flex; gap: 8px; align-items: center; font-size: 14px; line-height: 1.5; }
+  .aq-mobile-ranking-line > span { flex: 1; min-width: 0; overflow-wrap: anywhere; }
+  .aq-mobile-ranking-line > strong { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
+  .aq-mobile-ranking-line > svg { color: var(--aq-muted); }
+  .aq-mobile-ranking-track { display: block; height: 5px; border-radius: 3px; background: var(--aq-inset); margin-top: 6px; overflow: hidden; }
+  .aq-mobile-ranking-track > span { height: 100%; display: block; background: var(--aq-accent); opacity: .65; border-radius: inherit; }
+  .aq-page .aq-generated-expand { min-height: 44px; font-size: 13px; }
+  .aq-mobile-data-list { display: grid; gap: 8px; padding: 4px 0; }
+  .aq-mobile-data-row { min-width: 0; padding: 10px 12px; background: var(--aq-inset); border-radius: 8px; font-size: 14px; line-height: 1.6; }
+  .aq-mobile-data-values { display: grid; grid-template-columns: minmax(0, 1.35fr) repeat(2, minmax(0, 1fr)); gap: 8px; }
+  .aq-mobile-data-values span { display: block; font-size: 12px; color: var(--aq-muted); margin-bottom: 2px; }
+  .aq-mobile-data-values strong { display: block; font-size: 14px; font-weight: 550; overflow-wrap: anywhere; }
+  .aq-mobile-data-values > div:only-child { grid-column: 1 / -1; }
+  .aq-mobile-data-row dl { display: grid; gap: 7px; margin: 8px 0; }
+  .aq-mobile-data-row dl > div { display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 8px; }
+  .aq-mobile-data-row dt { color: var(--aq-muted); font-size: 13px; }
+  .aq-mobile-data-row dd { margin: 0; overflow-wrap: anywhere; }
+  .aq-mobile-data-footer { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 0 8px; justify-content: space-between; margin-top: 4px; }
+  .aq-mobile-data-footer > details[open] { width: 100%; }
+  .aq-mobile-data-row summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; color: var(--aq-muted); font-size: 13px; }
+  .aq-mobile-data-row summary::after { content: '＋'; margin-left: 8px; }
+  .aq-mobile-data-row details[open] > summary::after { content: '−'; }
+  .aq-mobile-data-footer > button { min-height: 44px; color: var(--aq-accent); font-size: 13px; }
+  .aq-mobile-record-heading { display: flex; gap: 8px; justify-content: space-between; align-items: center; }
+  .aq-mobile-record-heading > strong { white-space: nowrap; font-size: 16px; }
+  .aq-mobile-record-heading > span { font-size: 12px; color: var(--aq-muted); }
+  .aq-mobile-data-row > p { margin: 5px 0 0; color: var(--aq-muted); font-size: 13px; }
+  .aq-page .aq-generated-pagination, .aq-page .aq-pagination { font-size: 12px; padding: 6px 0; }
+  .aq-page .aq-generated-pagination > button, .aq-page .aq-pagination > button { min-width: 44px; min-height: 44px; }
+  .aq-mobile-actions { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 4px 12px; margin: 4px 0 10px; }
+  .aq-mobile-actions > button { min-height: 44px; padding: 4px 0; color: var(--aq-accent); font-size: 13px; }
+  .aq-mobile-actions > button:disabled { opacity: 1; color: var(--aq-muted); cursor: default; }
+  .aq-more-actions > summary { display: flex; align-items: center; gap: 5px; min-height: 44px; cursor: pointer; color: var(--aq-muted); font-size: 13px; }
+  .aq-more-actions[open] { width: 100%; }
+  .aq-more-actions[open] > summary { justify-content: flex-end; }
+  .aq-page .aq-more-actions .aq-answer-actions { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
+  .aq-page .aq-more-actions .aq-answer-actions > button { font-size: 13px; min-height: 44px; }
+  .aq-page .aq-more-actions .aq-answer-actions > span { font-size: 12px; }
+  .aq-page .aq-result .aq-result-definitions > summary, .aq-page .aq-result .aq-secondary-details > summary,
+  .aq-page .aq-result .aq-advanced-controls > summary, .aq-page .aq-result .aq-extra-metrics > summary { min-height: 44px; font-size: 13px; line-height: 1.6; display: flex; align-items: center; }
+  .aq-page .aq-result-definitions, .aq-page .aq-generated-narrative { font-size: 14px; line-height: 1.75; }
+  .aq-page .aq-followups { gap: 8px; }
+  .aq-page .aq-followups > span { width: 100%; font-size: 12px; }
+  .aq-page .aq-followups > button { min-height: 44px; font-size: 13px; text-align: left; }
+  .aq-page .aq-generated-drill-targets { max-height: none; overflow: visible; gap: 8px; }
+  .aq-page .aq-generated-drill-targets button { min-height: 44px; font-size: 13px; }
+  .aq-page .aq-result .aq-table-scroll { max-height: none; overflow-y: visible; }
+  .aq-page .aq-table-scroll th, .aq-page .aq-table-scroll td { font-size: 13px; white-space: normal; overflow-wrap: anywhere; padding: 10px 8px; }
+  .aq-page .aq-table-scroll th { position: static; }
+  .aq-page .aq-result .aq-bar-row { min-height: 44px; grid-template-columns: 75px minmax(15px, 1fr) 36px 40px 13px; font-size: 13px !important; gap: 6px !important; }
+  .aq-page .aq-bar-name { white-space: normal; overflow-wrap: anywhere; }
+  .aq-page .aq-result .aq-view-tabs button, .aq-page .aq-result .aq-more { min-height: 44px; font-size: 13px; }
+  .aq-page .aq-record-toolbar input { font-size: 16px; min-height: 44px; }
+  .aq-page .aq-section-preview > strong { font-size: 14px; }
+  .aq-page .aq-section-preview > span { font-size: 13px; }
+  .aq-page .aq-section-overview > button { padding: 10px; }
+  .aq-page .aq-compound-toolbar { font-size: 12px; }
+  .aq-page .aq-compound-toolbar button { min-height: 44px; font-size: 13px; }
+  .aq-page .aq-context-disclosure { margin-bottom: 4px; min-width: 0; }
+  .aq-page .aq-context-disclosure > summary { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; color: var(--aq-muted); font-size: 13px; cursor: pointer; }
+  .aq-context-disclosure > summary::-webkit-details-marker { display: none; }
+  .aq-context-disclosure > summary > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+  .aq-context-disclosure[open] > summary > span { white-space: normal; }
+  .aq-page .aq-context { flex-wrap: wrap; overflow: visible; padding: 4px 0; gap: 6px; max-height: 160px; overflow-y: auto; }
+  .aq-page .aq-context > * { flex-shrink: 1; }
+  .aq-page .aq-context .aq-filter-chip { max-width: 100%; font-size: 13px; overflow-wrap: anywhere; white-space: normal; }
+  .aq-page .aq-context button { min-height: 44px; min-width: 44px; }
+  .aq-page .aq-context .aq-topic-button { padding: 4px 10px; font-size: 13px; }
+  .aq-page .aq-context-heading { font-size: 12px; }
+  .aq-page .aq-composer-area { border-top: 1px solid var(--aq-line); }
+  .aq-page .aq-composer-foot { font-size: 11px; }
+  .aq-page .aq-latest-answer { min-height: 44px; font-size: 13px; }
+}
+@media (max-width: 767px) {
+  .aq-page .aq-header h1 { font-size: 16px; }
+  .aq-page .aq-scope, .aq-page .aq-compound-heading > div > span,
+  .aq-page .aq-section-number, .aq-page .aq-generated-notice,
+  .aq-page .aq-generated-empty, .aq-page .aq-result-unit,
+  .aq-page .aq-chart-caption, .aq-page .aq-bar-share,
+  .aq-page .aq-model, .aq-page .aq-record-toolbar,
+  .aq-page .aq-compound-notice, .aq-page .aq-inline-progress { font-size: 12px; }
+  .aq-page .aq-secondary-details[open] > p { font-size: 14px; line-height: 1.75; margin-bottom: 8px; }
+  .aq-page .aq-mobile-record-heading { flex-wrap: wrap; }
+}
@@ -0,0 +1,36 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import type { AssistantResult, PresentationBlock } from '../../../shared/assets/assistant';
+import { mobileBlockGroups, mobileResultSummary } from './mobile-presentation';
+
+const result: AssistantResult = {
+  plan: { kind: 'assets', category: 'inventory', groupBy: 'region', view: 'chart', filters: { type: ['4.5T'] } },
+  title: '库存', summary: '完整说明和统计限制。', source: '资产台账', fetchedAt: '', rows: [],
+  metrics: [{ label: '库存车辆', value: 200, unit: '台' }, { label: '其中异动', value: 8, unit: '台' }],
+  groups: [{ name: '华东', count: 125, share: 62.5, operating: 0, rate: 0 }, { name: '华南', count: 75, share: 37.5, operating: 0, rate: 0 }],
+};
+test('mobile summary preserves computed total and share without adding subset metrics', () => {
+  assert.equal(mobileResultSummary(result), '库存车辆 200 台；华东最多，125 台（62.5%）。');
+  assert.equal(mobileResultSummary({ ...result, groups: [...result.groups].reverse() }), mobileResultSummary(result));
+});
+test('partial, exception, comparison, briefing and simple count answers retain their qualification', () => {
+  for (const outcome of ['partial', 'empty', 'unsupported'] as const) assert.equal(mobileResultSummary({ ...result, outcome }), result.summary);
+  for (const analysis of ['compare', 'exceptions', 'briefing'] as const) assert.equal(mobileResultSummary({ ...result, plan: { ...result.plan, analysis } }), result.summary);
+  assert.equal(mobileResultSummary({ ...result, conciseCount: true }), result.summary);
+  assert.equal(mobileResultSummary({ ...result, metrics: [] }), result.summary);
+});
+test('chart/table toggles only combine identical data and drill semantics; unrelated fields remain reachable', () => {
+  const blocks: PresentationBlock[] = [
+    { id: 'chart', kind: 'chart', dataset: 'groups', interactionId: 'region' },
+    { id: 'table-other', kind: 'table', dataset: 'groups', interactionId: 'type' },
+    { id: 'table', kind: 'table', dataset: 'groups', interactionId: 'region', columns: [{ field: 'pending', label: '待交车' }] },
+    { id: 'rows', kind: 'table', dataset: 'rows' },
+    { id: 'second-chart', kind: 'chart', dataset: 'groups', interactionId: 'region' },
+    { id: 'explanation', kind: 'narrative', text: '统计限制' },
+  ];
+  const grouped = mobileBlockGroups(blocks);
+  assert.equal(grouped[0].table, blocks[2]);
+  assert.equal(grouped.find(entry => entry.block.id === 'second-chart')?.table, undefined);
+  assert.deepEqual(grouped.map(entry => entry.block.id), ['chart', 'table-other', 'rows', 'second-chart', 'explanation']);
+  assert.equal(grouped.flatMap(entry => [entry.block, ...(entry.table ? [entry.table] : [])]).length, blocks.length);
+});
@@ -0,0 +1,26 @@
+import type { AssistantResult, PresentationBlock } from '../../../shared/assets/assistant';
+
+/** Summarise computed values only; never add totals across independent scopes. */
+export function mobileResultSummary(result: AssistantResult): string {
+  if (result.plan.kind !== 'assets' || (result.outcome && result.outcome !== 'complete') || (result.plan.analysis && result.plan.analysis !== 'distribution') || result.conciseCount) return result.summary;
+  const total = result.metrics.find(metric => metric.unit === '台' && Number.isFinite(metric.value));
+  if (!total) return result.summary;
+  const largest = result.groups.filter(group => Number.isFinite(group.count)).reduce<(typeof result.groups)[number] | undefined>((lead, group) => !lead || group.count > lead.count ? group : lead, undefined);
+  const headline = `${total.label} ${total.value.toLocaleString('zh-CN')} 台`;
+  if (result.groups.length < 2 || !largest || !largest.count) return `${headline}。`;
+  const share = largest.share;
+  return `${headline}；${largest.name}最多，${largest.count.toLocaleString('zh-CN')} 台${typeof share === 'number' && Number.isFinite(share) ? `（${share}%）` : ''}。`;
+}
+
+export type MobileBlockGroup = { block: PresentationBlock; table?: PresentationBlock };
+/** Pair one chart and one table only when they share both data and drill semantics. */
+export function mobileBlockGroups(blocks: PresentationBlock[]): MobileBlockGroup[] {
+  const paired = new Set<string>();
+  const pairs = new Map<string, PresentationBlock>();
+  for (const block of blocks) {
+    if (block.kind !== 'chart' || !block.dataset) continue;
+    const table = blocks.find(candidate => candidate.kind === 'table' && !paired.has(candidate.id) && candidate.dataset === block.dataset && candidate.interactionId === block.interactionId);
+    if (table) { paired.add(table.id); pairs.set(block.id, table); }
+  }
+  return blocks.filter(block => !paired.has(block.id)).map(block => ({ block, table: pairs.get(block.id) }));
+}
@@ -28,7 +28,7 @@ function InventoryVehicleDetails({ vehicles, kind }: DetailsProps & { kind: 'abn
        <p className="mt-1 text-xs text-slate-500">{vehicle.brandLabel || '—'} · {vehicle.type} · {vehicle.location === '其他' ? '对接中' : vehicle.location}</p>
        <dl className="mt-4 space-y-3 text-sm">
          {details(vehicle).map((value, index) => <div key={labels[index]} className="grid grid-cols-[6rem_minmax(0,1fr)] gap-2">
-            <dt className="text-slate-500">{labels[index]}</dt>
+            <dt className="text-slate-500">{pending && index === 1 ? "客户（已脱敏）" : labels[index]}</dt>
            <dd className="whitespace-pre-wrap break-words font-medium text-slate-800 [overflow-wrap:anywhere]"><Blur>{value}</Blur></dd>
          </div>)}
        </dl>
@@ -170,9 +170,9 @@ export function AssetsHeader({
                            <span className="truncate">{s.name}</span>
                          </span>
                          <span className="text-[10px] text-gray-400 flex-shrink-0 tabular-nums">
-                            {s.total} 台
+                            {s.historicalOnly ? '历史主体' : <>{s.total} 台
                            <span className="mx-1 text-gray-200">·</span>
-                            <span className="text-green-500">运营 {s.operating}</span>
+                            <span className="text-green-500">运营 {s.operating}</span></>}
                          </span>
                        </button>
                      );
@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useRef, useState, type Dispatch, type SetStateAction } from 'react';
+import { useCallback, useLayoutEffect, useMemo, useRef, useState, type Dispatch, type SetStateAction } from 'react';
 import { ArrowLeft, X } from 'lucide-react';
 import type { FlowDetailItem, FlowType } from '../api';
 import type { FlowSelection } from '../model';
@@ -12,6 +12,10 @@ import { AnalysisExportButton } from './analysis/AnalysisExportButton';
 import { downloadAnalysisWorkbook, statisticsExportRows } from '../analysis-export';
 import './analysis/asset-analysis.css';
 import './flow-analysis-modal.css';
+import './analysis/mobile-analysis.css';
+import { MobileAnalysisControls } from './analysis/MobileAnalysisControls';
+import { MobileGroupedTable } from './analysis/MobileGroupedTable';
+import { useMobileLayout } from '../useMobileLayout';

 interface FlowAnalysisModalProps {
  selectedFlow: FlowSelection | null;
@@ -58,6 +62,7 @@ export function FlowAnalysisModal(props: FlowAnalysisModalProps) {
 }

 function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlow }: Omit<FlowAnalysisModalProps, 'selectedFlow'> & { selectedFlow: FlowSelection }) {
+  const mobile = useMobileLayout();
  const [dimensions, setDimensions] = useState<Dimension[]>(['date']);
  const [mergeParents, setMergeParents] = useState(true);
  const mergeActive = mergeParents && dimensions.length > 1;
@@ -87,6 +92,9 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
  const detailGroup = useMemo(() => detailKey === null ? null : groups.find(group => group.key === detailKey), [groups, detailKey]);
  const detailRows = detailGroup?.rows ?? EMPTY_FLOW_ROWS;
  const showDetails = detailKey !== null;
+  const overviewScroll = useRef(0);
+  const openDetails = (key: string) => { overviewScroll.current = scrollRoot.current?.scrollTop || 0; setDetailKey(key); };
+  useLayoutEffect(() => { if (scrollRoot.current) scrollRoot.current.scrollTop = showDetails ? 0 : overviewScroll.current; }, [showDetails]);
  const detailLabel = detailGroup && dimensions.length ? detailGroup.values.map((value, i) => `${DIMENSION_LABELS[dimensions[i]]}：${dimensionLabel(dimensions[i], value)}`).join(' · ') : '当前筛选范围';
  const selectedRows = showDetails ? detailRows : filteredRows;
  const { replacedCount, departmentCount } = useMemo(() => ({
@@ -96,7 +104,7 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
  const rangeLabel = 'date' in selectedFlow ? selectedFlow.date : `${selectedFlow.start} 至 ${selectedFlow.end}`;
  const parentTotals = useMemo(() => mergeActive ? dimensionParentTotals(groups, dimensions.length, group => group.values, group => group.rows.length) : [], [groups, dimensions.length, mergeActive]);
  const childCounts = useMemo(() => mergeActive ? dimensionChildCounts(groups, dimensions.length, group => group.values) : [], [groups, dimensions.length, mergeActive]);
-  const groupProgress = useProgressiveRows({ total: groups.length, rootRef: scrollRoot, resetKey: groups, enabled: !showDetails });
+  const groupProgress = useProgressiveRows({ total: groups.length, rootRef: scrollRoot, resetKey: groups, enabled: !showDetails, preserveOnDisable: true });
  const detailProgress = useProgressiveRows({ total: detailRows.length, rootRef: scrollRoot, resetKey: detailRows, enabled: showDetails });
  const shownGroups = useMemo(() => groups.slice(0, groupProgress.visibleCount), [groups, groupProgress.visibleCount]);
  const completeSpans = useMemo(() => mergeActive ? dimensionRowSpans(groups, dimensions.length, group => group.values) : [], [groups, dimensions.length, mergeActive]);
@@ -124,19 +132,19 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
  return <div className="bi-flow-modal-backdrop" onClick={event => { if (event.target === event.currentTarget) close(); }}>
    <div ref={dialog} role="dialog" aria-modal="true" aria-labelledby="bi-flow-modal-title" tabIndex={-1} className="bi-flow-modal" data-testid="asset-flow-analysis-modal">
      <header className="bi-flow-modal-header">
-        <div className="bi-flow-modal-header-row"><div><h3 id="bi-flow-modal-title">{FLOW_META[selectedFlow.type].label}分析</h3><p>{rangeLabel} · 运维签章时间 · 车次</p></div><button type="button" aria-label="关闭交还车分析" onClick={close} className="bi-flow-modal-close"><X size={16} /></button></div>
-        <p className="bi-flow-modal-definition">交车包含替换交车；业务类型按实际记录拆分，同车多笔业务分别计次。</p>
+        <div className="bi-flow-modal-header-row">{mobile && <button className="bi-flow-mobile-back" aria-label={showDetails ? "返回交还车统计" : "返回资产管理"} onClick={() => showDetails ? setDetailKey(null) : close()}><ArrowLeft size={20} /></button>}<div><h3 id="bi-flow-modal-title">{FLOW_META[selectedFlow.type].label}分析</h3><p>{rangeLabel} · 运维签章时间 · 车次</p></div><button type="button" aria-label="关闭交还车分析" onClick={close} className="bi-flow-modal-close"><X size={16} /></button></div>
+        {!mobile && <p className="bi-flow-modal-definition">交车包含替换交车；业务类型按实际记录拆分，同车多笔业务分别计次。</p>}
      </header>

      <div ref={scrollRoot} className="bi-flow-modal-body">
-        {!showDetails ? <div className="bi-flow-modal-controls">
+        {!mobile && (!showDetails ? <div className="bi-flow-modal-controls">
          <div className="bi-flow-modal-control-row"><span className="bi-flow-modal-control-label">分析维度</span><div className="adp-row" role="group" aria-label="选择交还车统计维度">
            {DIMENSIONS.map(({ key, label }) => <DimensionPicker key={key} label={label} grouped={dimensions.includes(key)} order={dimensions.indexOf(key) + 1} options={filterOptions[key]} selectedValues={filters[key]} onToggleGroup={() => toggleDimension(key)} onApplyFilter={values => changeFilter(key, values)} />)}
            <button type="button" className={`bi-flow-modal-chip${dimensions.length === 0 ? ' bi-flow-modal-chip-active' : ''}`} aria-pressed={dimensions.length === 0} onClick={() => { setDimensions([]); resetResult(); }}>仅筛选</button>
            {activeFilters.length ? <button type="button" className="bi-flow-modal-clear" onClick={() => { setFilters({}); resetResult(); }}>清空筛选</button> : null}
          </div></div>
          <p className="bi-flow-modal-control-hint">点击维度名切换分组，点击右侧箭头筛选；同维度多选为“或”，不同维度为“且”。</p>
-        </div> : <div className="bi-flow-modal-detail-nav"><button type="button" className="bi-flow-modal-back" onClick={() => { setDetailKey(null); }}><ArrowLeft size={13} />返回统计</button><span>{detailLabel}</span></div>}
+        </div> : <div className="bi-flow-modal-detail-nav"><button type="button" className="bi-flow-modal-back" onClick={() => { setDetailKey(null); }}><ArrowLeft size={13} />返回统计</button><span>{detailLabel}</span></div>)}

        <div className="bi-flow-modal-summary">
          <div><span>{showDetails ? '当前分组' : '当前筛选'}{FLOW_META[selectedFlow.type].label}</span><strong>{countLabel(selectedRows.length)}<small>车次</small></strong></div>
@@ -144,14 +152,19 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
          {selectedFlow.type === 'delivered' ? <div><span>其中：替换交车</span><strong className="bi-flow-modal-purple">{countLabel(replacedCount)}<small>车次</small></strong></div> : <div><span>{showDetails ? '占当前筛选' : '统计分组'}</span><strong>{showDetails ? `${filteredRows.length ? (selectedRows.length / filteredRows.length * 100).toFixed(1) : '0.0'}%` : groups.length}{!showDetails ? <small>组</small> : null}</strong></div>}
        </div>

-        <div className="bi-flow-modal-section-heading"><div><h4>{showDetails ? '业务明细' : dimensions.length ? '组合统计' : '筛选汇总'}</h4><p>{showDetails ? `共 ${countLabel(detailRows.length)} 条业务记录` : `共 ${countLabel(groups.length)} 组 · 占比以当前筛选的 ${countLabel(filteredRows.length)} 车次为基数`}</p></div>
-          {!showDetails && dimensions.length > 1 ? <label className="bi-flow-modal-merge-toggle"><input type="checkbox" checked={mergeParents} onChange={event => { setMergeParents(event.target.checked); }} />合并上级维度</label> : null}
+        {mobile && !showDetails && (filteredRows.length > 0 || activeFilters.length > 0) && <MobileAnalysisControls available={DIMENSIONS.map(d => ({ ...d, options: filterOptions[d.key] }))} dimensions={dimensions} filters={filters} defaults={['date']} apply={(nextDimensions, nextFilters) => { setDimensions(nextDimensions as Dimension[]); setFilters(nextFilters); resetResult(); }} />}
+        {mobile && showDetails && <p className="analysis-mobile-detail-scope">{detailLabel}</p>}
+        <div className="bi-flow-modal-section-heading"><div>{(!mobile || showDetails) && <h4>{showDetails ? '业务明细' : dimensions.length ? '组合统计' : '筛选汇总'}</h4>}<p>{showDetails ? `共 ${countLabel(detailRows.length)} 条业务记录` : mobile ? `共 ${countLabel(groups.length)} 组 · ${countLabel(filteredRows.length)} 车次` : `共 ${countLabel(groups.length)} 组 · 占比以当前筛选的 ${countLabel(filteredRows.length)} 车次为基数`}</p></div>
+          {!mobile && !showDetails && dimensions.length > 1 ? <label className="bi-flow-modal-merge-toggle"><input type="checkbox" checked={mergeParents} onChange={event => { setMergeParents(event.target.checked); }} />合并上级维度</label> : null}
          <div className="analysis-export-actions">
-            <AnalysisExportButton disabled={!selectedRows.length} onExport={exportWorkbook} />
+            {(!mobile || selectedRows.length > 0) && <AnalysisExportButton disabled={!selectedRows.length} onExport={exportWorkbook} />}
          </div>
        </div>

        {!showDetails ? groups.length ? <>
+          {mobile ? <MobileGroupedTable dimensions={dimensions.map(d => DIMENSION_LABELS[d])} unit="车次" merged={mergeActive} setMerged={setMergeParents} spans={groupSpans} parentTotals={parentTotals}
+            rows={shownGroups.map(group => ({ key: group.key, label: group.values.map((value, i) => dimensionLabel(dimensions[i], value)).join('、') || '当前筛选范围', values: group.values.map((value, i) => dimensionLabel(dimensions[i], value)), count: group.rows.length, share: group.rows.length / filteredRows.length * 100 }))}
+            onDetails={index => openDetails(shownGroups[index].key)} /> :
          <div className={`bi-flow-modal-table-wrap${mergeActive ? ' is-merged' : ''}`}><table className="bi-flow-modal-table" data-testid="asset-flow-group-table"><thead><tr>{dimensions.length ? dimensions.map(dimension => <th key={dimension}>{DIMENSION_LABELS[dimension]}</th>) : <th>范围</th>}<th className="bi-flow-modal-number">车次</th><th className="bi-flow-modal-share">占比</th><th className="bi-flow-modal-action">操作</th></tr></thead><tbody>
            {shownGroups.map((group, rowIndex) => <tr key={group.key} className={mergeActive && groupSpans[rowIndex][0] > 0 ? 'bi-flow-modal-group-start' : undefined}>
              {dimensions.length ? group.values.map((value, index) => {
@@ -159,16 +172,18 @@ function FlowAnalysisContent({ selectedFlow, selectedFlowDetails, setSelectedFlo
                return span === 0 ? null : <td key={dimensions[index]} rowSpan={span > 1 ? span : undefined} className={span > 1 ? 'bi-flow-modal-parent-cell' : undefined}>{dimensionLabel(dimensions[index], value)}{mergeActive && index < dimensions.length - 1 && childCounts[rowIndex][index] > 1 && <><small className="bi-flow-modal-parent-total" title="当前筛选范围内该分组的完整合计（全部筛选结果）">合计 <strong>{countLabel(parentTotals[rowIndex][index])}</strong> 车次</small><small className="bi-flow-modal-parent-children" title="当前筛选范围内下一级维度的去重分组数（全部筛选结果）">{DIMENSION_LABELS[dimensions[index + 1]]}：<strong>{countLabel(childCounts[rowIndex][index])}</strong> {dimensionCountUnit(dimensions[index + 1])}</small></>}</td>;
              }) : <td>当前筛选范围</td>}
              <td className="bi-flow-modal-number"><strong>{countLabel(group.rows.length)}</strong></td><td className="bi-flow-modal-share"><div><span className="bi-flow-modal-track"><span className={`bi-flow-modal-fill bi-flow-modal-fill-${selectedFlow.type}`} style={{ width: `${group.rows.length / filteredRows.length * 100}%` }} /></span><span>{(group.rows.length / filteredRows.length * 100).toFixed(1)}%</span></div></td>
-              <td className="bi-flow-modal-action"><button type="button" aria-label={`查看${group.values.map((value, i) => dimensionLabel(dimensions[i], value)).join('、') || '当前筛选范围'}明细`} onClick={() => { setDetailKey(group.key); }}>查看明细</button></td>
+              <td className="bi-flow-modal-action"><button type="button" aria-label={`查看${group.values.map((value, i) => dimensionLabel(dimensions[i], value)).join('、') || '当前筛选范围'}明细`} onClick={() => openDetails(group.key)}>查看明细</button></td>
            </tr>)}
-          </tbody></table></div>
+          </tbody></table></div>}
          <ProgressiveRowsStatus {...groupProgress} unit="组" />
-        </> : <div className="bi-flow-modal-empty">当前筛选范围暂无交还车数据，请调整筛选。</div>
+        </> : <div className="bi-flow-modal-empty">{activeFilters.length ? '当前筛选范围暂无交还车数据，可调整筛选。' : '当前时段暂无交还车记录。'}</div>
          : detailRows.length ? <>
-            <div className="bi-flow-modal-table-wrap" data-testid="asset-flow-final-details"><table className="bi-flow-modal-table bi-flow-modal-detail-table"><thead><tr><th>车牌</th><th>业务类型</th><th>运维签章时间</th><th>建单时间</th><th>部门</th><th>业务负责人</th><th>客户</th><th>合同</th><th>项目名称</th></tr></thead><tbody>{shownDetails.map(item => <tr key={item.id}><td>{item.plateNumber || '未登记车牌'}</td><td>{FLOW_META[item.type].label}</td><td>{item.eventTime || '—'}</td><td>{item.submitTime || '—'}</td><td>{dimensionLabel('department', dimensionValue(item, 'department'))}</td><td>{item.manager || '—'}</td><td>{item.customerName || '—'}</td><td>{item.contractNo || '—'}</td><td>{item.projectName || '—'}</td></tr>)}</tbody></table></div>
+            {mobile ? <div className="analysis-vehicle-cards" data-testid="asset-flow-final-details">{shownDetails.map(item => <article className="analysis-vehicle-card" key={item.id}><header><h4>{item.plateNumber || '未登记车牌'}</h4><span>{FLOW_META[item.type].label}</span></header><p>{item.eventTime || item.date} · {item.department || '未填写部门'}</p><p>{item.customerName || '未填写客户'}</p><details><summary>业务资料</summary><dl>{[['运维签章时间', item.eventTime], ['建单时间', item.submitTime], ['业务负责人', item.manager], ['合同', item.contractNo], ['项目名称', item.projectName]].map(([label,value]) => <div key={label}><dt>{label}</dt><dd>{value || '未提供'}</dd></div>)}</dl></details></article>)}</div> :
+            <div className="bi-flow-modal-table-wrap" data-testid="asset-flow-final-details"><table className="bi-flow-modal-table bi-flow-modal-detail-table"><thead><tr><th>车牌</th><th>业务类型</th><th>运维签章时间</th><th>建单时间</th><th>部门</th><th>业务负责人</th><th>客户</th><th>合同</th><th>项目名称</th></tr></thead><tbody>{shownDetails.map(item => <tr key={item.id}><td>{item.plateNumber || '未登记车牌'}</td><td>{FLOW_META[item.type].label}</td><td>{item.eventTime || '—'}</td><td>{item.submitTime || '—'}</td><td>{dimensionLabel('department', dimensionValue(item, 'department'))}</td><td>{item.manager || '—'}</td><td>{item.customerName || '—'}</td><td>{item.contractNo || '—'}</td><td>{item.projectName || '—'}</td></tr>)}</tbody></table></div>}
            <ProgressiveRowsStatus {...detailProgress} unit="条" />
          </> : <div className="bi-flow-modal-empty">当前分组暂无业务明细，请返回统计调整条件。</div>}
      </div>
+      {mobile && <footer className="analysis-footer"><details><summary>统计口径</summary><p>按运维签章时间统计。交车包含替换交车；同车多笔业务分别计次。仅展示当前可查看范围与筛选条件内的记录。</p></details></footer>}
    </div>
  </div>;
 }
@@ -2,6 +2,7 @@ import { AssetSummarySection } from './overview/AssetSummarySection';
 import { FlowStatisticsCard } from './overview/FlowStatisticsCard';
 import { InventoryStatisticsSection } from './overview/InventoryStatisticsSection';
 import { SummaryMetrics } from './overview/SummaryMetrics';
+import { AssetHistorySection } from '../history/AssetHistorySection';
 import type { OverviewViewProps } from './overview/types';

 export function OverviewView(props: OverviewViewProps) {
@@ -15,6 +16,8 @@ export function OverviewView(props: OverviewViewProps) {
        setVehicleSelection={props.setVehicleSelection}
      />

+      <AssetHistorySection subject={props.selectedSubject} onSubjects={props.onHistorySubjects} />
+
      <FlowStatisticsCard
        flowRange={props.flowRange}
        setFlowRange={props.setFlowRange}
@@ -1,7 +1,9 @@
 import { useEffect, useMemo, useRef, useState } from 'react';
 import { Check, ChevronDown, Filter, Plus, RotateCcw, Search, X } from 'lucide-react';
 import type { AssetAnalysisCell, AssetAnalysisDimension as Dimension } from '../../../../shared/assets/analytics';
-import { ANALYSIS_META, DIMENSION_LABELS, filterCustomCells, getDimensionValueLabel, type AnalysisFilterValues, type AnalysisView } from '../../analytics-model';
+import { ANALYSIS_META, DIMENSION_LABELS, filterCustomCells, getDefaultDimensions, getDimensionValueLabel, type AnalysisFilterValues, type AnalysisView } from '../../analytics-model';
+import { useMobileLayout } from '../../useMobileLayout';
+import { MobileAnalysisControls } from './MobileAnalysisControls';

 type Props = {
  view: AnalysisView;
@@ -15,6 +17,7 @@ type Props = {
 };

 export function AnalysisControls({ view, cells, available, dimensions, setDimensions, filters, setFilters, reset }: Props) {
+  const mobile = useMobileLayout();
  const root = useRef<HTMLElement>(null);
  const triggerRef = useRef<HTMLButtonElement | null>(null);
  const [position, setPosition] = useState({ top: 0, left: 0 });
@@ -56,6 +59,14 @@ export function AnalysisControls({ view, cells, available, dimensions, setDimens
    if (draft.length) next[editor] = draft; else delete next[editor];
    setFilters(next); closeEditor();
  };
+  const mobileOptions = useMemo(() => mobile ? available.map(key => {
+    const other = { ...filters }; delete other[key];
+    const counts = new Map<string, number>();
+    filterCustomCells(cells, other, metric).forEach(cell => counts.set(cell[key], (counts.get(cell[key]) || 0) + cell.quantity));
+    for (const value of filters[key] || []) if (!counts.has(value)) counts.set(value, 0);
+    return { key, label: DIMENSION_LABELS[key], options: [...counts].map(([value, count]) => ({ value, count, label: getDimensionValueLabel(key, value) })).sort((a, b) => b.count - a.count || a.label.localeCompare(b.label, 'zh-CN')) };
+  }) : [], [mobile, available, cells, filters, metric]);
+  if (mobile) return <MobileAnalysisControls available={mobileOptions} dimensions={dimensions} filters={filters} defaults={getDefaultDimensions(view)} apply={(nextDimensions, nextFilters) => { setDimensions(nextDimensions as Dimension[]); setFilters(nextFilters); }} />;
  return <section ref={root} className="analysis-builder" aria-label="自定义分析设置">
    <div className="analysis-builder-heading"><h3>分析维度</h3><span>点名称组合统计 · 点箭头搜索筛选</span><button className="analysis-reset" onClick={() => { reset(); setEditor(null); }}><RotateCcw size={12} />重置分析</button></div>
    <div className="analysis-dimension-options" role="group" aria-label="选择分析维度">
@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useRef, useState } from 'react';
+import { useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
 import { ArrowLeft, BarChart3, Filter, Loader2, Search, X } from 'lucide-react';
 import { fetchJson } from '../../../../auth/api-client';
 import Blur from '../../../../components/Blur';
@@ -15,8 +15,12 @@ import type { VehicleListItem } from '../../types';
 import { AbnormalVehicleDetails, PendingVehicleDetails } from '../AbnormalVehicleDetails';
 import { useDialogFocus } from '../useDialogFocus';
 import { AnalysisExportButton } from './AnalysisExportButton';
+import { MobileAnalysisControls } from './MobileAnalysisControls';
+import { MobileGroupedTable } from './MobileGroupedTable';
 import { downloadAnalysisWorkbook, statisticsExportRows, vehicleExportRows } from '../../analysis-export';
+import { useMobileLayout } from '../../useMobileLayout';
 import './asset-analysis.css';
+import './mobile-analysis.css';

 type Props = { selection: VehicleModalSelection | null; subject: string | null; close: () => void };
 const number = (value: number) => value.toLocaleString('zh-CN');
@@ -36,6 +40,7 @@ export function AssetAnalysisModal({ selection, subject, close }: Props) {
 }

 function AnalysisDialog({ selection, subject, close }: Props & { selection: VehicleModalSelection }) {
+  const mobile = useMobileLayout();
  const dialog = useRef<HTMLDivElement>(null);
  const scrollRoot = useRef<HTMLDivElement>(null);
  useDialogFocus(true, dialog, close);
@@ -51,6 +56,9 @@ function AnalysisDialog({ selection, subject, close }: Props & { selection: Vehi
  const [mergeParents, setMergeParents] = useState(true);
  const [detailGroup, setDetailGroup] = useState<CustomAnalysisRow | null>(null);
  const showDetails = detailGroup !== null;
+  const overviewScroll = useRef(0);
+  const openDetails = (row: CustomAnalysisRow) => { overviewScroll.current = scrollRoot.current?.scrollTop || 0; setDetailGroup(row); };
+  useLayoutEffect(() => { if (scrollRoot.current) scrollRoot.current.scrollTop = showDetails ? 0 : overviewScroll.current; }, [showDetails]);
  const [vehicles, setVehicles] = useState<VehicleListItem[]>([]);
  const [detailBusy, setDetailBusy] = useState(false);
  const [detailError, setDetailError] = useState('');
@@ -107,7 +115,7 @@ function AnalysisDialog({ selection, subject, close }: Props & { selection: Vehi
    : analysis.rows, [analysis, merged, sort]);
  const parentTotals = useMemo(() => merged ? dimensionParentTotals(orderedGroups, analysis.dimensions.length, row => analysis.dimensions.map(dimension => row.values[dimension] || ''), row => row.count) : [], [orderedGroups, analysis.dimensions, merged]);
  const childCounts = useMemo(() => merged ? dimensionChildCounts(orderedGroups, analysis.dimensions.length, row => analysis.dimensions.map(dimension => row.values[dimension] || '')) : [], [orderedGroups, analysis.dimensions, merged]);
-  const groupProgress = useProgressiveRows({ total: orderedGroups.length, rootRef: scrollRoot, resetKey: orderedGroups, enabled: !showDetails && !busy, batchSize: 40 });
+  const groupProgress = useProgressiveRows({ total: orderedGroups.length, rootRef: scrollRoot, resetKey: orderedGroups, enabled: !showDetails && !busy, batchSize: 40, preserveOnDisable: true });
  const shownGroups = useMemo(() => orderedGroups.slice(0, groupProgress.visibleCount), [orderedGroups, groupProgress.visibleCount]);
  const completeSpans = useMemo(() => merged ? dimensionRowSpans(orderedGroups, analysis.dimensions.length, row => analysis.dimensions.map(dimension => row.values[dimension] || '')) : [], [merged, orderedGroups, analysis.dimensions]);
  const spans = useMemo(() => visibleDimensionRowSpans(completeSpans, groupProgress.visibleCount), [completeSpans, groupProgress.visibleCount]);
@@ -132,17 +140,21 @@ function AnalysisDialog({ selection, subject, close }: Props & { selection: Vehi
  };
  return <div className="asset-analysis-overlay">
    <div ref={dialog} role="dialog" aria-modal="true" aria-label={title} tabIndex={-1} className={`asset-analysis-dialog ${view === 'abnormal' ? 'analysis-amber' : ''}`}>
-      <header className="analysis-header"><div><h2><BarChart3 size={16} />{title}</h2><p>{scopeLabel}</p></div><button type="button" aria-label="关闭统计分析" onClick={close}><X size={18} /></button></header>
-      {busy ? <div className="analysis-message" role="status"><Loader2 className="animate-spin" />正在汇总统计数据…</div> : error ? <div className="analysis-message" role="alert"><p>统计数据加载失败：{error}</p><button className="analysis-button" onClick={() => setRetry(retry + 1)}>重新加载</button></div> : request.kind === 'weekly' ? <WeeklyAnalysis rows={weekly} /> : <>
-        {showDetails && <div className="analysis-navigation"><button className="analysis-back" onClick={() => setDetailGroup(null)}><ArrowLeft size={14} />返回统计分析</button><span className="analysis-detail-scope">{detailGroup.label}</span></div>}
+      {(!mobile || request.kind !== 'weekly' || busy || error) && <header className="analysis-header">{mobile && <button type="button" aria-label={showDetails ? "返回统计分析" : "返回资产管理"} onClick={() => showDetails ? setDetailGroup(null) : close()}><ArrowLeft size={20} /></button>}<div><h2><BarChart3 size={16} />{title}</h2><p>{scopeLabel}</p></div><button type="button" aria-label="关闭统计分析" onClick={close}><X size={18} /></button></header>}
+      {busy ? <div className="analysis-message" role="status"><Loader2 className="animate-spin" />正在汇总统计数据…</div> : error ? <div className="analysis-message" role="alert"><p>统计数据加载失败：{error}</p><button className="analysis-button" onClick={() => setRetry(retry + 1)}>重新加载</button></div> : request.kind === 'weekly' ? <WeeklyAnalysis rows={weekly} title={title} scopeLabel={scopeLabel} close={close} /> : <>
+        {showDetails && !mobile && <div className="analysis-navigation"><button className="analysis-back" onClick={() => setDetailGroup(null)}><ArrowLeft size={14} />返回统计分析</button><span className="analysis-detail-scope">{detailGroup.label}</span></div>}
        <div ref={scrollRoot} className="analysis-scroll">
          {!showDetails && <>
-            <AnalysisControls view={view} cells={data?.cells ?? []} available={available} dimensions={dimensions} setDimensions={updateDimensions} filters={filterValues} setFilters={updateFilters} reset={reset} />
+            {!mobile && <AnalysisControls view={view} cells={data?.cells ?? []} available={available} dimensions={dimensions} setDimensions={updateDimensions} filters={filterValues} setFilters={updateFilters} reset={reset} />}
            <div className="analysis-result-bar" role="status" aria-live="polite"><span>当前结果 <strong>{number(analysis.total)}</strong> 台</span><span>{analysis.rows.length} 个分组</span><span className="analysis-result-dimensions">{analysis.dimensions.length ? analysis.dimensions.map(dimension => DIMENSION_LABELS[dimension]).join(' × ') : '仅汇总，不分组'}</span></div>
            {view === 'inventory' && <div className="analysis-inventory-subsets" aria-label="库存子集统计"><span className="analysis-pending-count">待交车 <strong>{number(analysis.summary.pending)}</strong> 台</span><span className="analysis-abnormal-count">异动 <strong>{number(analysis.summary.abnormal)}</strong> 台</span><small>已包含在当前库存数量中</small></div>}
-            {view === 'abnormal' && <p className="analysis-definition">已异动时长＝统计时间－审批通过时间；区间左含右不含，缺失时间单列。{data && !data.approvalTimeAvailable && ' 当前未取得可用审批时间。'}</p>}
-            <div className="analysis-table-tools"><p>{merged ? '按层级汇总数量排序，相同上级合并展示。' : '筛选分组可继续分析，查看明细可核对车辆。'}</p><div className="analysis-table-options"><AnalysisExportButton disabled={!analysis.total} onExport={exportWorkbook} />{analysis.dimensions.length > 1 && <label className="analysis-merge-toggle"><input type="checkbox" checked={mergeParents} onChange={event => { setMergeParents(event.target.checked); }} />合并上级维度</label>}<label>排序<select aria-label="统计分组排序" value={sort} onChange={event => { setSort(event.target.value as AnalysisSort); }}><option value="count-desc">数量从多到少</option><option value="count-asc">数量从少到多</option><option value="label">维度顺序</option></select></label></div></div>
-            {analysis.total === 0 ? <div className="analysis-message"><BarChart3 size={22} /><h3>没有符合条件的数据</h3><p>移除部分筛选条件，或恢复当前入口的全部数据。</p>{Object.keys(filterValues).length > 0 && <button className="analysis-button" onClick={() => updateFilters({})}>清空筛选</button>}</div> : <>
+            {mobile && (analysis.total > 0 || Object.keys(filterValues).length > 0) && <AnalysisControls view={view} cells={data?.cells ?? []} available={available} dimensions={dimensions} setDimensions={updateDimensions} filters={filterValues} setFilters={updateFilters} reset={reset} />}
+            {!mobile && view === 'abnormal' && <p className="analysis-definition">已异动时长＝统计时间－审批通过时间；区间左含右不含，缺失时间单列。{data && !data.approvalTimeAvailable && ' 当前未取得可用审批时间。'}</p>}
+            <div className={`analysis-table-tools analysis-overview-tools${!analysis.total ? ' is-empty' : ''}`}><p>{merged ? '按层级汇总数量排序，相同上级合并展示。' : '筛选分组可继续分析，查看明细可核对车辆。'}</p><div className="analysis-table-options"><AnalysisExportButton disabled={!analysis.total} onExport={exportWorkbook} />{analysis.dimensions.length > 1 && <label className="analysis-merge-toggle"><input type="checkbox" checked={mergeParents} onChange={event => { setMergeParents(event.target.checked); }} />合并上级维度</label>}<label>排序<select aria-label="统计分组排序" value={sort} onChange={event => { setSort(event.target.value as AnalysisSort); }}><option value="count-desc">数量从多到少</option><option value="count-asc">数量从少到多</option><option value="label">维度顺序</option></select></label></div></div>
+            {analysis.total === 0 ? <div className="analysis-message"><BarChart3 size={22} /><h3>{Object.keys(filterValues).length ? '没有符合条件的数据' : view === 'abnormal' ? '当前无异动车辆' : view === 'pending' ? '当前无待交车辆' : '当前范围暂无车辆'}</h3><p>{Object.keys(filterValues).length ? '可移除筛选条件后重新查看。' : '当前可查看范围内没有相关记录。'}</p>{Object.keys(filterValues).length > 0 && <button className="analysis-button" onClick={() => updateFilters({})}>清空筛选</button>}</div> : <>
+              {mobile ? <MobileGroupedTable dimensions={analysis.dimensions.map(d => DIMENSION_LABELS[d])} unit="台" merged={merged} setMerged={setMergeParents} spans={spans} parentTotals={parentTotals}
+                rows={shownGroups.map(row => ({ key: row.key, label: row.label, values: analysis.dimensions.map(d => <Blur key={d}>{getDimensionValueLabel(d, row.values[d] || '')}</Blur>), count: row.count, share: row.share, note: view === 'inventory' && (row.totals.pending || row.totals.abnormal) ? [row.totals.pending ? `待交 ${row.totals.pending}` : '', row.totals.abnormal ? `异动 ${row.totals.abnormal}` : ''].filter(Boolean).join(' · ') : undefined }))}
+                onDetails={index => openDetails(shownGroups[index])} onFilter={index => narrowToGroup(shownGroups[index])} /> : <>
              <div className={`analysis-group-table${merged ? ' is-merged' : ''}`} role="region" aria-label="组合统计表" tabIndex={0}><table>
                <thead><tr>{analysis.dimensions.length ? analysis.dimensions.map(dimension => <th key={dimension}>{DIMENSION_LABELS[dimension]}</th>) : <th>统计范围</th>}<th className="analysis-numeric">数量（台）</th>{view === 'inventory' && <><th className="analysis-numeric">待交车</th><th className="analysis-numeric">异动</th></>}<th className="analysis-numeric">占比</th><th>分析操作</th></tr></thead>
                <tbody>{shownGroups.map((row, rowIndex) => <tr key={row.key} className={merged && spans[rowIndex][0] > 0 ? 'analysis-group-start' : undefined}>
@@ -153,14 +165,15 @@ function AnalysisDialog({ selection, subject, close }: Props & { selection: Vehi
                  <td className="analysis-numeric" data-label="数量（台）"><strong>{number(row.count)}</strong></td>
                  {view === 'inventory' && <><td className={`analysis-numeric ${row.totals.pending ? 'analysis-pending-count' : 'analysis-zero-count'}`} data-label="待交车（台）">{number(row.totals.pending)}</td><td className={`analysis-numeric ${row.totals.abnormal ? 'analysis-abnormal-count' : 'analysis-zero-count'}`} data-label="异动（台）">{number(row.totals.abnormal)}</td></>}
                  <td className="analysis-share-cell" data-label="占比"><span>{row.share.toFixed(1)}%</span><span className="analysis-bar-track" aria-hidden="true"><span style={{ width: `${row.share}%` }} /></span></td>
-                  <td className="analysis-group-actions">{analysis.dimensions.length > 0 && <button aria-label={`筛选分组 ${row.label}`} onClick={() => narrowToGroup(row)}><Filter size={12} />筛选此组</button>}<button aria-label={`查看明细 ${row.label}`} onClick={() => setDetailGroup(row)}>查看明细</button></td>
+                  <td className="analysis-group-actions">{analysis.dimensions.length > 0 && <button aria-label={`筛选分组 ${row.label}`} onClick={() => narrowToGroup(row)}><Filter size={12} />筛选此组</button>}<button aria-label={`查看明细 ${row.label}`} onClick={() => openDetails(row)}>查看明细</button></td>
                </tr>)}</tbody>
              </table></div>
+              </>}
              <div className="analysis-table-total"><span>合计 {number(analysis.total)} 台{view === 'inventory' && ` · 待交车 ${number(analysis.summary.pending)} 台 · 异动 ${number(analysis.summary.abnormal)} 台`} · 占比基于当前筛选结果</span><span>100%</span></div>
              <ProgressiveRowsStatus {...groupProgress} unit="组" />
            </>}
          </>}
-          {showDetails && <div className="analysis-details">
+          {showDetails && <div className="analysis-details">{mobile && <p className="analysis-mobile-detail-scope">{detailGroup.label} · 当前分组</p>}
            <div className="analysis-table-tools"><h3>车辆明细 <small>{number(visibleVehicles.length)} 台</small></h3><AnalysisExportButton disabled={detailBusy || !!detailError || !visibleVehicles.length} onExport={exportWorkbook} /><label className="analysis-search"><Search size={15} /><input aria-label="搜索车辆明细" placeholder="搜索车牌、VIN、型号、城市" value={search} onChange={event => { setSearch(event.target.value); }} /></label></div>
            {detailBusy ? <div className="analysis-message" role="status"><Loader2 className="animate-spin" />正在加载车辆明细…</div> : detailError ? <div className="analysis-message" role="alert"><p>{detailError}</p><button className="analysis-button" onClick={() => setDetailRetry(detailRetry + 1)}>重新加载明细</button></div> : <>
              {vehicles.length !== detailGroup.count && <p className="analysis-definition">车辆状态可能已更新：统计快照 {detailGroup.count} 台，当前明细 {vehicles.length} 台。</p>}
@@ -169,19 +182,26 @@ function AnalysisDialog({ selection, subject, close }: Props & { selection: Vehi
            </>}
          </div>}
        </div>
-        <footer className="analysis-footer"><span>统计时间 {data ? formatLocalDateTime(new Date(data.generatedAt)) : '—'} · 当前可查看范围</span><span>{showDetails ? '仅展示当前分组与筛选条件内的车辆' : '同维度筛选为“或”，不同维度筛选为“且”'}</span></footer>
+        <footer className="analysis-footer">{mobile ? <details><summary>统计口径与数据时间</summary><p>统计时间 {data ? formatLocalDateTime(new Date(data.generatedAt)) : '—'} · 当前可查看范围</p><p>同维度筛选为“或”，不同维度为“且”。仅展示当前入口与筛选条件内的车辆。</p>{view === 'abnormal' && <p>已异动时长＝统计时间－审批通过时间；区间左含右不含，缺失时间单列。{data && !data.approvalTimeAvailable && ' 当前未取得可用审批时间。'}</p>}</details> : <><span>统计时间 {data ? formatLocalDateTime(new Date(data.generatedAt)) : '—'} · 当前可查看范围</span><span>{showDetails ? '仅展示当前分组与筛选条件内的车辆' : '同维度筛选为“或”，不同维度筛选为“且”'}</span></>}</footer>
      </>}
    </div>
  </div>;
 }

 function VehicleRows({ vehicles, inventory = false }: { vehicles: VehicleListItem[]; inventory?: boolean }) {
+  const mobile = useMobileLayout();
  if (!vehicles.length) return <div className="analysis-message">暂无匹配车辆</div>;
  const stateLabel = (vehicle: VehicleListItem) => {
    const operation = ({ '1': '租赁', '2': '自营', '3': '可运营', '4': '待运营' } as Record<string, string>)[vehicle.operationStatus || ''] || vehicle.operationStatus;
    const business = ({ Abnormal: '异动', Pending: '待交车', Inventory: '在库', Operating: '运营中' } as Record<string, string>)[vehicle.status] || vehicle.status;
    return [business, operation].filter(Boolean).join(' · ');
  };
+  if (mobile) return <div className="analysis-vehicle-cards" aria-label="车辆明细列表">{vehicles.map(vehicle => <article className="analysis-vehicle-card" key={vehicle.id}>
+    <header><h4><Blur>{vehicle.plateNumber || vehicle.vin || '未提供'}</Blur></h4><span>{stateLabel(vehicle)}</span></header>
+    <p>{vehicle.model || `${vehicle.brandLabel || '—'} · ${vehicle.type}`} · {vehicle.city || vehicle.location || '未标注城市'}</p>
+    {!inventory && vehicle.customerName && <p><Blur>{vehicle.customerName}</Blur></p>}
+    <details><summary>车辆资料</summary><dl>{[['VIN', vehicle.vin], ['品牌 / 车型', `${vehicle.brandLabel || '—'} · ${vehicle.type}`], ['省份 / 城市', `${vehicle.province || '未标注'} / ${vehicle.city || vehicle.location || '未标注'}`], ...(inventory ? [['运维负责人', vehicle.opsManagers?.trim() || '-']] : [['签约公司', vehicle.orgName], ['部门', vehicle.departmentName], ['业务负责人', vehicle.customerManager]]), ['所属公司', vehicle.subjectOrg]].map(([label, value]) => <div key={label}><dt>{label}</dt><dd><Blur>{value || '未提供'}</Blur></dd></div>)}</dl></details>
+  </article>)}</div>;
  return <div className="analysis-detail-table" tabIndex={0} role="region" aria-label="车辆明细表"><table><thead><tr>{['车牌 / VIN', '品牌 / 车型 / 型号', '省份 / 城市', '状态', ...(inventory ? ['运维负责人'] : ['客户 / 签约公司', '部门 / 业务负责人']), '所属公司'].map(label => <th key={label}>{label}</th>)}</tr></thead><tbody>{vehicles.map(vehicle => <tr key={vehicle.id}><td><Blur>{vehicle.plateNumber || vehicle.vin || '未提供'}</Blur></td><td>{vehicle.brandLabel || '—'} · {vehicle.type}<small>{vehicle.model}</small></td><td>{vehicle.province || '未标注'} / {vehicle.city || vehicle.location || '未标注'}</td><td>{stateLabel(vehicle)}</td>{inventory ? <td><Blur>{vehicle.opsManagers?.trim() || '-'}</Blur></td> : <><td><Blur>{vehicle.customerName || '—'}</Blur><small><Blur>{vehicle.orgName || '—'}</Blur></small></td><td><Blur>{vehicle.departmentName || '—'}</Blur><small><Blur>{vehicle.customerManager || '—'}</Blur></small></td></>}<td>{vehicle.subjectOrg || '—'}</td></tr>)}</tbody></table></div>;
 }

@@ -191,7 +211,8 @@ const EMPTY_WEEKLY_ROWS: WeeklyDetailItem[] = [];
 const weeklyDimensionValue = (row: WeeklyDetailItem, dimension: WeeklyDimension) => dimension === 'date'
  ? row.handover_date?.slice(0, 10) || '' : row.contract_type?.trim() || '';

-function WeeklyAnalysis({ rows }: { rows: WeeklyDetailItem[] }) {
+function WeeklyAnalysis({ rows, title, scopeLabel, close }: { rows: WeeklyDetailItem[]; title: string; scopeLabel: string; close: () => void }) {
+  const mobile = useMobileLayout();
  type Dimension = WeeklyDimension;
  const dimensionsAvailable = WEEKLY_DIMENSIONS;
  const scrollRoot = useRef<HTMLDivElement>(null);
@@ -222,12 +243,15 @@ function WeeklyAnalysis({ rows }: { rows: WeeklyDetailItem[] }) {
  const detailGroup = detailKey === null ? null : grouped.get(detailKey);
  const detailRows = detailGroup?.rows ?? EMPTY_WEEKLY_ROWS;
  const showDetails = detailKey !== null;
+  const overviewScroll = useRef(0);
+  const openDetails = (key: string) => { overviewScroll.current = scrollRoot.current?.scrollTop || 0; setDetailKey(key); };
+  useLayoutEffect(() => { if (scrollRoot.current) scrollRoot.current.scrollTop = showDetails ? 0 : overviewScroll.current; }, [showDetails]);
  const groupLabel = (group: { values: string[] }) => dimensions.length
    ? dimensions.map((dimension, index) => `${labels[dimension]}：${label(dimension, group.values[index])}`).join(' · ')
    : '当前筛选结果';
  const parentTotals = useMemo(() => mergeActive ? dimensionParentTotals(groups, dimensions.length, group => group.values, group => group.rows.length) : [], [groups, dimensions.length, mergeActive]);
  const childCounts = useMemo(() => mergeActive ? dimensionChildCounts(groups, dimensions.length, group => group.values) : [], [groups, dimensions.length, mergeActive]);
-  const groupProgress = useProgressiveRows({ total: groups.length, rootRef: scrollRoot, resetKey: groups, enabled: !showDetails });
+  const groupProgress = useProgressiveRows({ total: groups.length, rootRef: scrollRoot, resetKey: groups, enabled: !showDetails, preserveOnDisable: true });
  const detailProgress = useProgressiveRows({ total: detailRows.length, rootRef: scrollRoot, resetKey: detailRows, enabled: showDetails });
  const shownGroups = useMemo(() => groups.slice(0, groupProgress.visibleCount), [groups, groupProgress.visibleCount]);
  const completeSpans = useMemo(() => mergeActive ? dimensionRowSpans(groups, dimensions.length, group => group.values) : [], [groups, dimensions.length, mergeActive]);
@@ -256,6 +280,25 @@ function WeeklyAnalysis({ rows }: { rows: WeeklyDetailItem[] }) {
    const details = selectedRows.map(row => ({ 车牌: row.plate_number, 日期: row.handover_date, 合同类型: row.contract_type, 客户: row.customer_name }));
    return downloadAnalysisWorkbook(statistics, details, `交还车分析-${detailGroup ? groupLabel(detailGroup) : '当前筛选结果'}`);
  };
+  if (mobile) return <>
+    <header className="analysis-header"><button aria-label={showDetails ? '返回统计分析' : '返回资产管理'} onClick={() => showDetails ? setDetailKey(null) : close()}><ArrowLeft size={20} /></button><div><h2>{title}</h2><p>{scopeLabel}</p></div><button aria-label="关闭统计分析" onClick={close}><X size={18} /></button></header>
+    <div ref={scrollRoot} className="analysis-scroll">
+      <div className="analysis-result-bar" role="status"><span>当前结果 <strong>{number(showDetails ? detailRows.length : filtered.length)}</strong> 车次</span>{!showDetails && <span>{groups.length} 个分组</span>}</div>
+      {!showDetails ? <>
+        {(filtered.length > 0 || activeFilters.length > 0) && <MobileAnalysisControls available={dimensionsAvailable.map(key => ({ key, label: labels[key], options: filterOptions[key] }))} dimensions={dimensions} filters={filters} defaults={['date']} apply={(nextDimensions, nextFilters) => { updateDimensions(nextDimensions as Dimension[]); updateFilters(nextFilters); }} />}
+        {filtered.length > 0 && <div className="analysis-table-tools"><AnalysisExportButton onExport={exportWorkbook} /></div>}
+        {groups.length ? <><MobileGroupedTable dimensions={dimensions.map(d => labels[d])} unit="车次" merged={mergeActive} setMerged={setMergeParents} spans={groupSpans} parentTotals={parentTotals}
+          rows={shownGroups.map(group => ({ key: group.key, label: groupLabel(group), values: group.values.map((entry, i) => label(dimensions[i], entry)), count: group.rows.length, share: group.rows.length / filtered.length * 100 }))}
+          onDetails={index => openDetails(shownGroups[index].key)} onFilter={index => updateFilters({ ...filters, ...Object.fromEntries(dimensions.map((dimension, i) => [dimension, [shownGroups[index].values[i]]])) })} /><ProgressiveRowsStatus {...groupProgress} unit="组" /></> : <div className="analysis-message"><p>{activeFilters.length ? '没有符合条件的数据，可调整筛选。' : '当前范围暂无交还车记录。'}</p>{activeFilters.length > 0 && <button className="analysis-button" onClick={() => updateFilters({})}>清空筛选</button>}</div>}
+      </> : <>
+        <p className="analysis-mobile-detail-scope">{detailGroup ? groupLabel(detailGroup) : '当前分组'}</p>
+        <div className="analysis-table-tools"><h3>交还车业务明细</h3><AnalysisExportButton disabled={!detailRows.length} onExport={exportWorkbook} /></div>
+        <div className="analysis-vehicle-cards">{shownDetails.map((row, index) => <article className="analysis-vehicle-card" key={`${row.truck_id}-${index}`}><header><h4><Blur>{row.plate_number || '未登记车牌'}</Blur></h4><span>{row.contract_type || '未标注合同类型'}</span></header><p>{row.handover_date || '日期缺失'}</p><p><Blur>{row.customer_name || '未提供客户'}</Blur></p></article>)}</div>
+        <ProgressiveRowsStatus {...detailProgress} unit="条" />
+      </>}
+    </div>
+    <footer className="analysis-footer"><details><summary>统计口径</summary><p>按当前入口的周业务记录统计车次，同一车辆多笔记录分别计次。仅展示当前可查看范围和筛选条件内的数据。</p></details></footer>
+  </>;
  return <div ref={scrollRoot} className="analysis-scroll">
    {!showDetails ? <>
      <div className="analysis-builder">
@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState, type RefObject } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState, type RefObject } from 'react';

 interface ProgressiveRowsOptions {
  total: number;
@@ -6,11 +6,14 @@ interface ProgressiveRowsOptions {
  resetKey: unknown;
  enabled?: boolean;
  batchSize?: number;
+  preserveOnDisable?: boolean;
 }

 /** Render a cumulative prefix, loading another batch near the actual scroll body's bottom. */
-export function useProgressiveRows({ total, rootRef, resetKey, enabled = true, batchSize = 40 }: ProgressiveRowsOptions) {
-  const context = useMemo(() => ({ resetKey, enabled, batchSize }), [resetKey, enabled, batchSize]);
+export function useProgressiveRows({ total, rootRef, resetKey, enabled = true, batchSize = 40, preserveOnDisable = false }: ProgressiveRowsOptions) {
+  const resetEnabled = preserveOnDisable || enabled;
+  const context = useMemo(() => ({ resetKey, enabled: resetEnabled, batchSize }), [resetKey, resetEnabled, batchSize]);
+  const scrollContext = useRef(context);
  const [progress, setProgress] = useState(() => ({ context, limit: batchSize }));
  const [sentinel, setSentinel] = useState<HTMLDivElement | null>(null);
  const visibleCount = Math.min(total, progress.context === context ? progress.limit : batchSize);
@@ -21,8 +24,9 @@ export function useProgressiveRows({ total, rootRef, resetKey, enabled = true, b
  }, [enabled, context, total, batchSize]);

  useEffect(() => {
-    if (enabled && rootRef.current) rootRef.current.scrollTop = 0;
-  }, [context, enabled, rootRef]);
+    if (enabled && rootRef.current && (!preserveOnDisable || scrollContext.current !== context)) rootRef.current.scrollTop = 0;
+    scrollContext.current = context;
+  }, [context, enabled, rootRef, preserveOnDisable]);

  useEffect(() => {
    const root = rootRef.current;
@@ -66,17 +66,17 @@ export function SummaryMetrics({

      </div>

-      <div data-testid="asset-operation-ratio-strip" className="mb-3 rounded-2xl border border-slate-100 bg-white/85 px-4 py-3 shadow-sm">
+      <div data-testid="asset-operation-ratio-strip" className="mb-3 rounded-2xl border border-slate-100 bg-white/85 px-3 py-2 shadow-sm">
        <div className="flex items-center justify-between gap-3">
          <div className="shrink-0 text-[11px] font-black text-slate-400">运营概览</div>
          <div className="grid min-w-0 flex-1 grid-cols-2 divide-x divide-slate-100 text-center">
-            <div className="px-2">
+            <div className="flex flex-wrap items-baseline justify-center gap-x-2 px-2">
              <div className="text-[10px] font-black text-slate-400">运营率</div>
-              <div className="mt-0.5 text-base font-black text-blue-600">{operatingRate.toFixed(1)}%</div>
+              <div className="text-base font-black text-blue-600">{operatingRate.toFixed(1)}%</div>
            </div>
-            <div className="px-2">
+            <div className="flex flex-wrap items-baseline justify-center gap-x-2 px-2">
              <div className="text-[10px] font-black text-slate-400">库存率</div>
-              <div className="mt-0.5 text-base font-black text-slate-700">{inventoryRate.toFixed(1)}%</div>
+              <div className="text-base font-black text-slate-700">{inventoryRate.toFixed(1)}%</div>
            </div>

          </div>
@@ -67,6 +67,8 @@ export type OverviewViewProps = SummaryMetricsProps
  & AssetSummarySectionProps
  & InventoryStatisticsSectionProps
  & {
+    selectedSubject: string | null;
+    onHistorySubjects: (names: string[]) => void;
    allTypesExpanded: boolean;
    toggleAllAssetTypes: () => void;
  };
@@ -0,0 +1,42 @@
+import { useState } from 'react';
+import { Bar, BarChart, CartesianGrid, LabelList, ResponsiveContainer, Tooltip, XAxis, YAxis } from 'recharts';
+import { ArrowUpRight, Info } from 'lucide-react';
+import type { FaultAnalysisRecord, FaultDashboardDimension, FaultDashboardResponse, FaultDashboardScope, FaultDistribution } from '../../../shared/assets/faults';
+export type DashboardDrill = (title: string, scope?: FaultDashboardScope, filters?: Record<string, string>) => void;
+const colors = ['#ef4444','#f59e0b','#2563eb','#93c5fd','#94a3b8'];
+export function DashboardPanels({data, drill}:{data:FaultDashboardResponse;drill:DashboardDrill}) {
+ const [dimension,setDimension]=useState<'region'|'level'|'customer'|'model'>('region');
+ const [metric,setMetric]=useState<'reported'|'vehicles'>('reported');
+ const [expanded,setExpanded]=useState(false),[matrixExpanded,setMatrixExpanded]=useState(false),[customersExpanded,setCustomersExpanded]=useState(false);
+ const groups=data.distributions[dimension],shown=expanded?groups:groups.slice(0,8);
+ const levels=[...data.distributions.level].sort((a,b)=>(a.value==='未标注'?1:0)-(b.value==='未标注'?1:0)||a.value.localeCompare(b.value,'zh-CN'));
+ const models=matrixExpanded?data.matrix.models:data.matrix.models.slice(0,3);
+ const max=Math.max(1,...data.matrix.cells.map(c=>c.count));
+ const customers=[...data.distributions.customer].sort((a,b)=>b.vehicles-a.vehicles||b.reported-a.reported);
+ const chartDrill=(datum:unknown,key:FaultDashboardDimension,title:string)=>{const row=(datum as {payload?:FaultDistribution})?.payload;if(row)drill(`${title} · ${row.label}`,'cohort',{[key]:row.value});};
+ return <>
+ <div className="fd-grid fd-grid-primary">
+  <section className="fd-panel" aria-label="故障分布与对比"><div className="fd-panel-title"><h2>故障分布与对比</h2><span>按本期提报队列统计，截至当前的闭环状态。</span></div>
+   <div className="fd-chart-controls"><div className="fd-segment" aria-label="故障分布维度">{([['region','区域'],['level','程度'],['customer','客户'],['model','车型']] as const).map(([key,label])=><button key={key} aria-pressed={dimension===key} onClick={()=>{setDimension(key);setExpanded(false);}}>{label}</button>)}</div><div className="fd-segment" aria-label="故障分布指标"><button aria-pressed={metric==='reported'} onClick={()=>setMetric('reported')}>故障量</button><button aria-pressed={metric==='vehicles'} onClick={()=>setMetric('vehicles')}>受影响车辆</button><button disabled title="缺少同期服务车辆规模，暂不计算发生频率">发生频率 · 待补分母</button></div></div>
+   <div className="fd-legend">{metric==='reported'?<><span className="fd-blue">已闭环 {groups.reduce((n,r)=>n+r.closed,0)}</span><span className="fd-orange">未闭环 {groups.reduce((n,r)=>n+r.unclosed,0)}</span></>:<span className="fd-blue">按车辆去重 · 辆</span>}</div>
+   {shown.length?<div className="fd-distribution-chart"><ResponsiveContainer width="100%" height={Math.max(150,shown.length*26)} minWidth={0}><BarChart data={shown} layout="vertical" margin={{top:4,right:30,left:0,bottom:0}}>
+    <CartesianGrid horizontal={false} stroke="#edf2fa"/><XAxis type="number" allowDecimals={false} axisLine={false} tickLine={false} tick={{fontSize:10,fill:'#7c8ba7'}}/><YAxis type="category" dataKey="label" interval={0} width={116} axisLine={false} tickLine={false} tick={{fontSize:11,fill:'#334155'}} tickFormatter={v=>v.length>12?`${v.slice(0,11)}…`:v}/><Tooltip cursor={{fill:'#f4f7fc'}} contentStyle={{borderRadius:8,borderColor:'#e2e8f0',fontSize:12}}/>
+    {metric==='reported'?<><Bar dataKey="closed" name="已闭环" stackId="faults" fill="#2475ff" maxBarSize={18} isAnimationActive={false} cursor="pointer" onClick={d=>chartDrill(d,dimension,'故障分布')}><LabelList dataKey={(row:FaultDistribution)=>row.unclosed===0?row.reported:''} position="right" fontSize={10} fill="#334155"/></Bar><Bar dataKey="unclosed" name="未闭环" stackId="faults" fill="#ff981a" maxBarSize={18} isAnimationActive={false} cursor="pointer" onClick={d=>chartDrill(d,dimension,'故障分布')}><LabelList dataKey="reported" position="right" fontSize={10} fill="#334155"/></Bar></>:<Bar dataKey="vehicles" name="受影响车辆" fill="#2475ff" maxBarSize={18} isAnimationActive={false} cursor="pointer" onClick={d=>chartDrill(d,dimension,'受影响车辆对应故障')}><LabelList dataKey="vehicles" position="right" fontSize={10} fill="#334155"/></Bar>}</BarChart></ResponsiveContainer></div>:<p className="fd-empty">所选条件下暂无故障。</p>}
+   <div className="fd-panel-foot"><span>点击图表查看对应故障；车辆跨组可能重复，不直接累加。</span>{groups.length>8&&<button onClick={()=>setExpanded(!expanded)}>{expanded?'收起':`全部 ${groups.length} 组`}</button>}</div>
+   <details className="fd-chart-data"><summary>查看精确数量与下钻</summary><table><thead><tr><th>分组</th><th>故障量</th><th>已闭环</th><th>未闭环</th><th>车辆</th></tr></thead><tbody>{groups.map(r=><tr key={r.value}><td><button onClick={()=>drill(r.label,'cohort',{[dimension]:r.value})}>{r.label}</button></td><td>{r.reported}</td><td>{r.closed}</td><td>{r.unclosed}</td><td>{r.vehicles}</td></tr>)}</tbody></table></details>
+  </section>
+  <section className="fd-panel" aria-label="故障程度"><div className="fd-panel-title"><h2>故障程度</h2><span className="fd-chip">现有等级口径</span></div><p className="fd-caption">按本期故障数量统计，点击等级查看明细。</p>
+   <div className="fd-level-list">{levels.map(row=><button key={row.value} onClick={()=>drill(`故障程度 · ${row.label}`,'cohort',{level:row.value})}><span>{row.label}</span><span className="fd-level-track"><span style={{width:`${row.reported/Math.max(1,...levels.map(r=>r.reported))*100}%`,background:colors[/^L[1-4]/.test(row.value)?Number(row.value[1])-1:4]}}/></span><b>{row.reported}</b><ArrowUpRight size={12}/></button>)}</div>
+   {!levels.length&&<p className="fd-empty">暂无等级统计。</p>}
+   <p className="fd-info"><Info size={15}/>等级不等于实际停运影响，请结合车辆状态与服务记录判断。</p><p className="fd-caption">未标注等级 {data.quality.missingLevel} 单；停运车辆与修复时长待补数据。</p>
+  </section>
+ </div>
+ <div className="fd-grid fd-grid-secondary">
+  <section className="fd-panel" aria-label="品牌车型与故障部位"><div className="fd-panel-title"><h2>品牌车型 × 故障部位</h2><span>点击交叉单元格查看对应故障。</span></div><div className="fd-table-scroll"><table className="fd-matrix"><thead><tr><th>品牌车型</th>{data.matrix.categories.map(c=><th key={c.value}>{c.label}</th>)}<th>合计</th></tr></thead><tbody>{models.map(m=><tr key={m.value}><th title={m.label}>{m.label}</th>{data.matrix.categories.map(c=>{const count=data.matrix.cells.find(cell=>cell.model===m.value&&cell.category===c.value)?.count||0;return <td key={c.value} style={{background:count?`rgba(36,117,255,${.08+.52*count/max})`:undefined}}><button disabled={!count} aria-label={`${m.label}，${c.label}，${count} 单`} onClick={()=>drill(`${m.label} · ${c.label}`,'cohort',{model:m.value,category:c.value})}>{count||'—'}</button></td>})}<td><button onClick={()=>drill(m.label,'cohort',{model:m.value})}>{data.matrix.totals[m.value]}</button></td></tr>)}</tbody></table></div>{!models.length&&<p className="fd-empty">暂无车型与部位数据。</p>}<div className="fd-panel-foot"><span>一单多部位分别计入，合计按故障单去重。</span>{data.matrix.models.length>3&&<button onClick={()=>setMatrixExpanded(!matrixExpanded)}>{matrixExpanded?'收起':`全部 ${data.matrix.models.length} 个车型`}</button>}</div></section>
+  <section className="fd-panel" aria-label="客户受影响情况"><div className="fd-panel-title"><h2>客户受影响情况</h2><span>同一车辆在同一客户下去重。</span></div><div className="fd-table-scroll"><table className="fd-customers"><thead><tr><th>#</th><th>客户名称</th><th>本期影响车辆</th><th>当前在办</th></tr></thead><tbody>{(customersExpanded?customers:customers.slice(0,4)).map((r,i)=><tr key={r.value}><td>{i+1}</td><td><button onClick={()=>drill(r.label,'cohort',{customer:r.value})}>{r.label}</button></td><td><button className="fd-customer-meter" onClick={()=>drill(`${r.label} · 本期故障`,'cohort',{customer:r.value})}><progress max={Math.max(1,customers[0]?.vehicles||0)} value={r.vehicles}/><b>{r.vehicles}</b></button></td><td><button className="fd-danger" disabled={!r.open} onClick={()=>drill(`${r.label} · 当前在办`,'open',{customer:r.value})}>{r.open}</button></td></tr>)}</tbody></table></div>{!customers.length&&<p className="fd-empty">暂无客户影响数据。</p>}<div className="fd-panel-foot"><span>当前在办不限制提报日期；库存车单独展示。</span>{customers.length>4&&<button onClick={()=>setCustomersExpanded(!customersExpanded)}>{customersExpanded?'收起':`全部 ${customers.length} 组`}</button>}</div></section>
+ </div>
+ </>;
+}
+export function DashboardTicketTable({rows,updatedAt,drill,emptyMessage='当前条件下暂无故障。'}:{rows:FaultAnalysisRecord[];updatedAt:string;drill:DashboardDrill;emptyMessage?:string}) {
+ return <div className="fd-table-scroll"><table className="fd-tickets"><thead><tr><th>车辆 / 故障单号</th><th>运维处置人</th><th>区域 / 客户</th><th>等级</th><th>当前状态</th><th>处置记录 / 故障描述</th><th>提报时间</th><th>操作</th></tr></thead><tbody>{rows.map(row=>{const overdue=['待处理','处理中'].includes(row.status)&&row.deadlineAt&&Date.parse(`${row.deadlineAt.replace(' ','T')}+08:00`)<Date.parse(updatedAt);return <tr key={row.id}><td><strong>{row.plate}</strong><small>{row.code}</small></td><td>{row.handlers.map(h=>h.label).join('、')}</td><td>{row.cell.region}<small>{row.customerLabel}</small></td><td><span className={`fd-grade fd-grade-${row.level?.slice(0,2)}`}>{row.level||'未标注'}</span></td><td><span className={row.status==='已归档'?'fd-green':'fd-orange'}>{row.status==='已归档'?'已闭环':row.status}</span>{overdue&&<small className="fd-overdue-tag">已逾期</small>}</td><td className="fd-description" title={row.progress||row.description}>{row.progress||row.description||'暂无处置记录'}</td><td>{row.reportedAt||'未记录'}</td><td><button onClick={()=>drill(`${row.plate} · ${row.code}`,'ledger',{id:row.id})}>查看</button></td></tr>})}</tbody></table>{!rows.length&&<p className="fd-empty">{emptyMessage}</p>}</div>;
+}
@@ -17,7 +17,7 @@ import '../components/analysis/mobile-analysis.css';
 const available = FAULT_ANALYSIS_DIMENSIONS;
 // Page-lifetime memory only: closing a modal retains settings; a full reload clears them.
 const analysisSettings = new Map<string, { dimensions: FaultAnalysisDimension[]; filters: FaultAnalysisFilters }>();
-export interface FaultAnalysisSource { url: string; title: string; periodLabel: string; definition?: string; defaultDimensions?: FaultAnalysisDimension[] }
+export interface FaultAnalysisSource { url: string; title: string; periodLabel: string; definition?: string; defaultDimensions?: FaultAnalysisDimension[]; initialDetails?: boolean }
 export function FaultAnalysisModal({ metric, onClose, source }: { metric: FaultOverviewMetric; onClose: () => void; source?: FaultAnalysisSource }) {
  const ref = useRef<HTMLDivElement>(null);
  useDialogFocus(true, ref, onClose);
@@ -38,7 +38,7 @@ export function FaultAnalysisModal({ metric, onClose, source }: { metric: FaultO
    const controller = new AbortController();
    setError(''); setData(null);
    fetchJson<FaultAnalysisResponse>(source?.url || `/api/asset-faults/analysis?metric=${metric}`, { signal: controller.signal })
-      .then(result => { if (!controller.signal.aborted) setData(result); }).catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); });
+      .then(result => { if (!controller.signal.aborted) { setData(result); if (source?.initialDetails) setGroup({key:"all", values:{}, count:result.rows.length, share:100, recordIds:result.rows.map(r=>r.id)}); } }).catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); });
    return () => controller.abort();
  }, [metric, revision, source?.url]);
  const records = useMemo(() => data?.rows || [], [data]);
@@ -1,64 +1,71 @@
-import { Fragment, useCallback, useEffect, useState } from 'react';
-import { ArrowUpRight, CheckCircle2, ClipboardList, Clock3, PlusCircle, RefreshCw } from 'lucide-react';
+import { useCallback, useEffect, useState } from 'react';
+import { ArrowUpRight, CarFront, ClipboardList, Clock3, Filter, Info, RefreshCw, Search, TriangleAlert } from 'lucide-react';
 import { fetchJson } from '../../../auth/api-client';
-import { FAULT_OVERVIEW_METRICS, type FaultOverview, type FaultOverviewMetric } from '../../../shared/assets/faults';
-import { FaultAnalysisModal } from './FaultAnalysisModal';
-import { FaultWeeklyReport } from './FaultWeeklyReport';
-import { FaultTrendCard } from './FaultTrendCard';
+import { FAULT_DASHBOARD_FILTERS, type FaultAnalysisResponse, type FaultDashboardDimension, type FaultDashboardFilters, type FaultDashboardResponse, type FaultDashboardScope } from '../../../shared/assets/faults';
+import { FlowDateRangePicker } from '../components/overview/FlowDateRangePicker';
+import { AnalysisExportButton } from '../components/analysis/AnalysisExportButton';
+import { FaultAnalysisModal, type FaultAnalysisSource } from './FaultAnalysisModal';
+import { FaultOverview } from './FaultOverview';
+import { DashboardPanels, DashboardTicketTable, type DashboardDrill } from './DashboardPanels';
+import { downloadDashboard } from './dashboard-export';
 import './fault-management.css';
-
-export const FAULT_DEFINITIONS = {
-  reported: '按今日提报时间统计', closed: '按今日解决时间统计',
-  open: '当前在办 = 待处理 + 处理中', ledger: '全部有效故障台账',
-};
-const icons = { reported: PlusCircle, closed: CheckCircle2, open: Clock3, ledger: ClipboardList };
-const metrics = ['reported', 'closed', 'open', 'ledger'] as const;
-export default function FaultManagement() {
-  const [data, setData] = useState<FaultOverview | null>(null);
-  const [error, setError] = useState('');
-  const [loading, setLoading] = useState(true);
-  const [revision, setRevision] = useState(0);
-  const [metric, setMetric] = useState<FaultOverviewMetric | null>(null);
-  const close = useCallback(() => setMetric(null), []);
-  useEffect(() => {
-    const controller = new AbortController();
-    setLoading(true); setError('');
-    fetchJson<FaultOverview>('/api/asset-faults/overview', { signal: controller.signal })
-      .then(setData).catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); })
-      .finally(() => { if (!controller.signal.aborted) setLoading(false); });
-    return () => controller.abort();
-  }, [revision]);
-  return <div className="fault-page">
-    <header className="fault-page-header"><h1>羚牛氢能-故障管理</h1><div><span>{data ? `数据更新时间：${new Date(data.updatedAt).toLocaleString('zh-CN', { timeZone: 'Asia/Shanghai', hour12: false })}` : '正在读取故障台账'}</span><button aria-label="刷新故障统计" disabled={loading} onClick={() => setRevision(v => v + 1)}><RefreshCw size={14} className={loading ? 'animate-spin' : ''} />刷新</button></div></header>
-    {error && <div className="fault-message" role="alert">{error}<button onClick={() => setRevision(v => v + 1)}>重试</button></div>}
-    <section className="fault-summary" aria-label="故障总统计" aria-busy={loading}>
-      <div className="fault-summary-heading"><h2>故障数据实时汇总</h2><span>{data?.date || '—'} · 北京时间</span></div>
-      <div className="fault-metrics">{metrics.map(key => {
-        const Icon = icons[key];
-        return <article key={key} className={`fault-metric fault-metric-${key}`}><button className="fault-metric-main" disabled={!data || loading || !!error} onClick={() => setMetric(key)} aria-label={`${FAULT_OVERVIEW_METRICS[key]} ${data?.totals[key] ?? '加载中'} 单，查看分析`}>
-          <div className="fault-metric-label"><span className="fault-metric-icon"><Icon size={19} /></span><span>{FAULT_OVERVIEW_METRICS[key]}</span><ArrowUpRight size={15} /></div>
-          <div className="fault-metric-count"><strong>{loading ? '—' : data?.totals[key].toLocaleString('zh-CN') ?? '—'}</strong><span>单</span></div>
-          <p>{FAULT_DEFINITIONS[key]}</p><span className="fault-metric-link">查看分析与明细 →</span>
-        </button>
-          {key === 'open' && <>
-            <button className="fault-overdue-subset" disabled={!data || loading || !!error} onClick={() => setMetric('overdue')} aria-label={`其中逾期 ${data?.totals.overdue ?? '加载中'} 单，查看分析`}>
-              <span><span className="fault-overdue-prefix">其中</span>逾期</span><strong>{loading ? '—' : data?.totals.overdue?.toLocaleString('zh-CN') ?? '—'}</strong><small>单</small>
-            </button>
-            <div className="fault-open-breakdown" aria-label="当前在办等于待处理加处理中">
-              {(['waiting', 'processing'] as const).map((part, index) => <Fragment key={part}>
-                {index > 0 && <span className="fault-composition-plus" aria-hidden="true">＋</span>}
-                <button className={`fault-submetric fault-submetric-${part}`} disabled={!data || loading || !!error} onClick={() => setMetric(part)} aria-label={`${FAULT_OVERVIEW_METRICS[part]} ${data?.totals[part] ?? '加载中'} 单，查看分析`}>
-                  <span>{FAULT_OVERVIEW_METRICS[part]}</span><strong>{loading ? '—' : data?.totals[part]?.toLocaleString('zh-CN') ?? '—'}</strong>
-                </button>
-              </Fragment>)}
-            </div>
-          </>}
-        </article>;
-      })}</div>
-      <p className="fault-summary-note">当前在办 = 待处理 + 处理中，其中逾期不重复累加；按处置截止时间统计，挂起停表，未设置截止时间不计入逾期。</p>
+import './dashboard.css';
+const tabs = ['管理总览','多维分析','故障明细'] as const;
+function initialRange(){const end=new Date(Date.now()+8*3600000).toISOString().slice(0,10);return {start:new Date(Date.parse(end)-29*86400000).toISOString().slice(0,10),end};}
+export default function FaultManagement(){
+ const [range,setRange]=useState(initialRange),[filters,setFilters]=useState<FaultDashboardFilters>({});
+ const [applied,setApplied]=useState(()=>({...initialRange(),filters:{} as FaultDashboardFilters}));
+ const [tab,setTab]=useState<typeof tabs[number]>('管理总览'),[more,setMore]=useState(false);
+ const [data,setData]=useState<FaultDashboardResponse|null>(null),[loading,setLoading]=useState(true),[error,setError]=useState('');
+ const [revision,setRevision]=useState(0),[source,setSource]=useState<FaultAnalysisSource|null>(null);
+ const [detailScope,setDetailScope]=useState<FaultDashboardScope>('cohort'),[detailData,setDetailData]=useState<FaultAnalysisResponse|null>(null),[detailError,setDetailError]=useState(''),[detailLoading,setDetailLoading]=useState(false);
+ const [search,setSearch]=useState(''),[limit,setLimit]=useState(50);
+ const close=useCallback(()=>setSource(null),[]);
+ const query=new URLSearchParams({start:applied.start,end:applied.end,...applied.filters}).toString();
+ useEffect(()=>{if(tab==='管理总览')return;const c=new AbortController();setLoading(true);setError('');fetchJson<FaultDashboardResponse>(`/api/asset-faults/dashboard?${query}`,{signal:c.signal}).then(d=>{if(!c.signal.aborted)setData(d);}).catch(e=>{if(!c.signal.aborted)setError(e instanceof Error?e.message:'加载失败');}).finally(()=>{if(!c.signal.aborted)setLoading(false);});return()=>c.abort();},[query,revision,tab]);
+ useEffect(()=>{if(tab!=='故障明细')return;const c=new AbortController();setDetailData(null);setDetailError('');setDetailLoading(true);setLimit(50);fetchJson<FaultAnalysisResponse>(`/api/asset-faults/dashboard-analysis?${query}&scope=${detailScope}`,{signal:c.signal}).then(d=>{if(!c.signal.aborted)setDetailData(d);}).catch(()=>{if(!c.signal.aborted)setDetailError('故障明细加载失败，请重试。');}).finally(()=>{if(!c.signal.aborted)setDetailLoading(false);});return()=>c.abort();},[tab,query,detailScope,revision]);
+ const drill:DashboardDrill=(title,scope='cohort',extra={})=>{if(loading||error||!data)return;const params=new URLSearchParams({start:data.start,end:data.end,...applied.filters,...extra,scope});setSource({url:`/api/asset-faults/dashboard-analysis?${params}`,title,periodLabel:scope==='cohort'?`${data.start} 至 ${data.end} · 按提报日期`:scope==='reported'||scope==='closed'?'北京时间今日':'全部提报日期 · 当前状态',defaultDimensions:extra.id?[]:['handler','faultStatus'],initialDetails:!!extra.id,definition:scope==='focus'?'仅包含 L1-特急且未归档的故障（含待处理、处理中、挂起等状态），不限制提报日期。':scope==='cohort'?'按提报日期筛选同批故障，已归档为已闭环，其余状态为未闭环。':scope==='overdue'?'逾期仅包含待处理、处理中且处置截止时间早于数据时间的故障；挂起、未设置截止时间不计入。':scope==='reported'?'按北京时间今日提报时间统计。':scope==='closed'?'按北京时间今日解决时间统计，不限制提报日期。':'不限制提报日期，按当前状态及已应用条件统计；当前在办 = 待处理 + 处理中。'});};
+ const t=data?.totals;
+ const detailRows=(detailData?.rows||[]).filter(r=>`${r.code} ${r.plate} ${r.description} ${r.handlers.map(h=>h.label).join(' ')}`.toLowerCase().includes(search.trim().toLowerCase())).sort((a,b)=>(b.reportedAt||'').localeCompare(a.reportedAt||'')||b.id.localeCompare(a.id,'en',{numeric:true}));
+ const dirty=range.start!==applied.start||range.end!==applied.end||JSON.stringify(filters)!==JSON.stringify(applied.filters);
+ const count=(n?:number)=>loading?'—':n?.toLocaleString('zh-CN')??'—';
+ const select=(key:FaultDashboardDimension)=><label className="fd-filter" key={key}><span>{FAULT_DASHBOARD_FILTERS[key]}</span><select aria-label={FAULT_DASHBOARD_FILTERS[key]} value={filters[key]||''} onChange={e=>setFilters(v=>({...v,[key]:e.target.value}))}><option value="">全部</option>{data?.options[key].map(o=><option key={o.value} value={o.value}>{o.label}</option>)}</select></label>;
+ const showAllOpen=()=>{setDetailScope('open');setTab('故障明细');setSearch('');};
+ const showAllFaults=()=>{setFilters({});setApplied({...range,filters:{}});setDetailScope('ledger');setTab('故障明细');setSearch('');};
+ const navigation=<nav className="fd-tabs" aria-label="故障分析页面">{tabs.map(name=><button key={name} aria-current={tab===name?'page':undefined} onClick={()=>setTab(name)}>{name}</button>)}</nav>;
+ if(tab==='管理总览')return <FaultOverview navigation={navigation}/>;
+ return <div className="fault-page fd-page">
+  <header className="fd-header"><div><p className="fd-breadcrumb">羚牛氢能 BI / 故障分析</p><div className="fd-heading-line"><h1>故障风险与服务分析</h1><p>从问题分布，追溯到车辆与处理进展。</p></div></div><div className="fd-header-actions"><span>更新时间：{data?new Date(data.updatedAt).toLocaleString('zh-CN',{timeZone:'Asia/Shanghai',hour12:false}):'读取中'}</span><button disabled={loading} aria-label="刷新故障统计" onClick={()=>setRevision(v=>v+1)}><RefreshCw size={14} className={loading?'animate-spin':''}/>刷新</button><AnalysisExportButton disabled={loading||!data||!!error} onExport={()=>data?downloadDashboard(data,Object.entries(applied.filters).filter(([,v])=>v).map(([k,v])=>`${FAULT_DASHBOARD_FILTERS[k as FaultDashboardDimension]}：${data.options[k as FaultDashboardDimension].find(o=>o.value===v)?.label||v}`).join(' · ')):undefined}/></div></header>
+  {navigation}
+  <form className="fd-toolbar" onSubmit={e=>{e.preventDefault();setApplied({...range,filters:{...filters}});}}><div className="fd-date"><FlowDateRangePicker value={range} onChange={setRange} dateLabel="故障提报时间"/></div>{(['region','customer','model'] as const).map(select)}<button className="fd-filter-toggle" type="button" aria-expanded={more} onClick={()=>setMore(!more)}><Filter size={15}/>更多筛选{Object.entries(filters).filter(([k,v])=>!['region','customer','model'].includes(k)&&v).length?` (${Object.entries(filters).filter(([k,v])=>!['region','customer','model'].includes(k)&&v).length})`:''}</button><button className="fd-query" type="submit" disabled={loading}>查询</button>{more&&<div className="fd-more-filters">{(['city','department','handler','level','category','inventory'] as const).map(select)}<button type="button" onClick={()=>{setFilters({});setApplied({...range,filters:{}});}}>重置筛选</button></div>}</form>
+  <p className="fd-scope-note">期间指标按提报日期统计；当前在办不限制提报日期，状态截至更新时间。{dirty&&<strong>条件已修改，点击查询后生效。</strong>}</p>
+  {error&&<div className="fault-message" role="alert">{error}<button onClick={()=>setRevision(v=>v+1)}>重试</button></div>}
+  {!data&&loading?<div className="fd-loading" role="status"><RefreshCw className="animate-spin" size={20}/>正在汇总故障分析…</div>:data&&<div className={loading||error?'fd-content is-loading':'fd-content'} aria-busy={loading}>
+   {tab==='多维分析'&&<>
+    <section className="fd-kpis" aria-label="故障总统计">
+     <article className="fd-kpi"><button disabled={loading||!!error} onClick={()=>drill('期间新增故障')}><ClipboardList className="fd-kpi-icon"/><span>期间新增故障</span><ArrowUpRight size={14}/><strong>{count(t?.reported)}<small>单</small></strong></button><p>对比上期 <b className={t?.change!=null&&t.change>0?'fd-orange':'fd-blue'}>{t?.change==null?'无可比基数':`${t.change>0?'+':''}${t.change.toFixed(1)}%`}</b><small>上期 {t?.previous} 单</small></p></article>
+     <article className="fd-kpi"><button disabled={loading||!!error} onClick={()=>drill('受影响车辆对应故障')}><CarFront className="fd-kpi-icon fd-purple"/><span>受影响车辆</span><ArrowUpRight size={14}/><strong>{count(t?.vehicles)}<small>辆</small></strong></button><p>涉及 <b>{t?.customers}</b> 家已关联客户<small>按车辆去重</small></p></article>
+     <article className="fd-kpi"><button disabled={loading||!!error} onClick={()=>drill('当前在办','open')}><Clock3 className="fd-kpi-icon fd-orange"/><span>当前在办</span><ArrowUpRight size={14}/><strong>{count(t?.open)}<small>单</small></strong></button><div className="fd-kpi-parts"><button disabled={loading||!!error} onClick={()=>drill('待处理','waiting')}>待处理 <b>{count(t?.waiting)}</b></button><span>+</span><button disabled={loading||!!error} onClick={()=>drill('处理中','processing')}>处理中 <b>{count(t?.processing)}</b></button></div></article>
+     <article className="fd-kpi"><button disabled={loading||!!error} onClick={()=>drill('逾期','overdue')}><TriangleAlert className="fd-kpi-icon fd-danger"/><span>逾期</span><ArrowUpRight size={14}/><strong className="fd-danger">{count(t?.overdue)}<small>单</small></strong></button><p>最长逾期 <b className="fd-danger">{t?.longestOverdueDays} 天</b><small>在办子集</small></p></article>
    </section>
-    <FaultTrendCard refresh={revision} />
-    <FaultWeeklyReport refresh={revision} />
-    {metric && <FaultAnalysisModal key={metric} metric={metric} onClose={close} />}
+    <div className="fd-today-stats"><span>实时统计</span><button onClick={()=>drill('今日新增','reported')}>今日新增 <b>{t?.todayReported}</b></button><button onClick={()=>drill('本日解决','closed')}>本日解决 <b>{t?.todayClosed}</b></button></div>
+    <div className="fd-insight"><Info size={18}/><strong>{data.distributions.region[0]?`本期关注：${data.distributions.region[0].label}故障量最高，共 ${data.distributions.region[0].reported} 单；当前 ${t?.overdue} 单在办故障已逾期。`:'所选条件下暂无本期故障，可调整日期或筛选范围。'}</strong><span>按数量描述，不代表故障发生率。</span><button disabled={!t?.open} onClick={showAllOpen}>查看关联故障 <ArrowUpRight size={13}/></button></div>
+    {tab==='多维分析'&&<div className="fd-analysis-banner"><div><h2>组合维度，追溯故障</h2><p>支持运维处置人、车牌、工单状态、车型、区域、客户等 12 个维度，多选筛选与明细下钻。</p></div><button className="fd-query" onClick={()=>drill('本期故障多维分析')}>打开多维分析</button></div>}
+    <DashboardPanels data={data} drill={drill}/>
+    <section className="fd-panel fd-focus" aria-label="重点故障跟进">
+     <div className="fd-panel-title">
+      <h2>重点故障跟进</h2>
+      <span className="fd-chip fd-orange">L1 未闭环 {data.focusTotals.total}</span>
+      <span className="fd-chip fd-danger">逾期 {data.focusTotals.overdue}</span>
+      <button onClick={showAllFaults} title="查看当前权限内的全部故障记录">查看全部 <ArrowUpRight size={13}/></button>
+     </div>
+     <DashboardTicketTable rows={data.focus} updatedAt={data.updatedAt} drill={drill} emptyMessage="当前筛选范围内暂无 L1 未闭环故障。"/>
+     <p className="fd-caption">仅展示 L1-特急且未闭环（未归档）的故障；沿用当前业务筛选，不限制提报日期。逾期优先，同优先级按提报时间倒序，最多展示 5 单。“查看全部”进入当前权限内的全部故障台账，并清除业务筛选和搜索条件，不限等级、状态及提报日期。</p>
+    </section>
+   </>}
+   {tab==='故障明细'&&<section className="fd-panel fd-details"><div className="fd-panel-title"><h2>故障明细</h2><span>按提报时间倒序 · {detailRows.length} 单</span><button onClick={()=>drill('故障明细多维分析',detailScope)}>多维分析 <ArrowUpRight size={13}/></button></div><div className="fd-detail-controls"><div className="fd-segment">{([['cohort','本期提报'],['open','当前在办'],['overdue','逾期故障'],['ledger','累计台账']] as const).map(([key,title])=><button key={key} aria-pressed={detailScope===key} onClick={()=>{setDetailScope(key);setSearch('');}}>{title}</button>)}</div><label><Search size={15}/><input placeholder="搜索车牌、单号、处置人" aria-label="搜索故障明细列表" value={search} onChange={e=>{setSearch(e.target.value);setLimit(50);}}/></label></div>{detailLoading?<p className="fd-loading" role="status">正在加载故障明细…</p>:detailError?<p role="alert" className="fault-message">{detailError}<button onClick={()=>setRevision(v=>v+1)}>重试</button></p>:<><DashboardTicketTable rows={detailRows.slice(0,limit)} updatedAt={detailData?.updatedAt||data.updatedAt} drill={drill}/>{detailRows.length>limit&&<button className="fd-load-more" onClick={()=>setLimit(v=>v+50)}>加载更多（{Math.min(limit,detailRows.length)} / {detailRows.length}）</button>}</>}</section>}
+   <footer className="fd-quality"><Info size={13}/>数据完整性：本期未标注等级 {data.quality.missingLevel} 单，未标注部位 {data.quality.missingCategory} 单，缺少车辆标识 {data.quality.missingVehicle} 单；在办中 {data.quality.missingDeadline} 单未设置截止时间，不计入逾期。</footer>
+  </div>}
+  {source&&<FaultAnalysisModal key={source.url} metric="ledger" source={source} onClose={close}/>}
 </div>;
 }
@@ -0,0 +1,69 @@
+import type { ReactNode } from 'react';
+import { Fragment, useCallback, useEffect, useState } from 'react';
+import { ArrowUpRight, CheckCircle2, ClipboardList, Clock3, PlusCircle, RefreshCw } from 'lucide-react';
+import { fetchJson } from '../../../auth/api-client';
+import { FAULT_OVERVIEW_METRICS, type FaultOverview, type FaultOverviewMetric } from '../../../shared/assets/faults';
+import { FaultAnalysisModal } from './FaultAnalysisModal';
+import { FaultWeeklyReport } from './FaultWeeklyReport';
+import { FaultTrendCard } from './FaultTrendCard';
+import './fault-management.css';
+
+export const FAULT_DEFINITIONS = {
+  reported: '按今日提报时间统计', closed: '按今日解决时间统计',
+  open: '当前在办 = 待处理 + 处理中', ledger: '全部有效故障台账',
+};
+const icons = { reported: PlusCircle, closed: CheckCircle2, open: Clock3, ledger: ClipboardList };
+const metrics = ['reported', 'closed', 'open', 'ledger'] as const;
+export function FaultOverview({ navigation }: { navigation: ReactNode }) {
+  const [data, setData] = useState<FaultOverview | null>(null);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [revision, setRevision] = useState(0);
+  const [metric, setMetric] = useState<FaultOverviewMetric | null>(null);
+  const close = useCallback(() => setMetric(null), []);
+  useEffect(() => {
+    const controller = new AbortController();
+    setLoading(true); setError('');
+    fetchJson<FaultOverview>('/api/asset-faults/overview', { signal: controller.signal })
+      .then(result => { if (!controller.signal.aborted) setData(result); }).catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); })
+      .finally(() => { if (!controller.signal.aborted) setLoading(false); });
+    return () => controller.abort();
+  }, [revision]);
+  return <div className="fault-page fault-overview-page">
+    <header className="fd-header">
+      <div><p className="fd-breadcrumb">羚牛氢能 BI / 故障分析</p><div className="fd-heading-line"><h1>羚牛氢能-故障管理</h1><p>实时掌握故障数量、闭环趋势与运维进展。</p></div></div>
+      <div className="fd-header-actions"><span>{data ? `更新时间：${new Date(data.updatedAt).toLocaleString('zh-CN', { timeZone: 'Asia/Shanghai', hour12: false })}` : '正在读取故障台账'}</span><button aria-label="刷新故障统计" disabled={loading} onClick={() => setRevision(v => v + 1)}><RefreshCw size={14} className={loading ? 'animate-spin' : ''} />刷新</button></div>
+    </header>
+    {navigation}
+    {error && <div className="fault-message" role="alert">{error}<button onClick={() => setRevision(v => v + 1)}>重试</button></div>}
+    <section className="fault-summary" aria-label="故障总统计" aria-busy={loading}>
+      <div className="fault-summary-heading"><h2>故障数据实时汇总</h2><span>{data?.date || '—'} · 北京时间</span></div>
+      <div className="fault-metrics">{metrics.map(key => {
+        const Icon = icons[key];
+        return <article key={key} className={`fault-metric fault-metric-${key}`}><button className="fault-metric-main" disabled={!data || loading || !!error} onClick={() => setMetric(key)} aria-label={`${FAULT_OVERVIEW_METRICS[key]} ${data?.totals[key] ?? '加载中'} 单，查看分析`}>
+          <div className="fault-metric-label"><span className="fault-metric-icon"><Icon size={19} /></span><span>{FAULT_OVERVIEW_METRICS[key]}</span><ArrowUpRight size={15} /></div>
+          <div className="fault-metric-count"><strong>{loading ? '—' : data?.totals[key].toLocaleString('zh-CN') ?? '—'}</strong><span>单</span></div>
+          <p>{FAULT_DEFINITIONS[key]}</p><span className="fault-metric-link">查看分析与明细 →</span>
+        </button>
+          {key === 'open' && <>
+            <button className="fault-overdue-subset" disabled={!data || loading || !!error} onClick={() => setMetric('overdue')} aria-label={`逾期 ${data?.totals.overdue ?? '加载中'} 单，查看分析`}>
+              <span>逾期</span><strong>{loading ? '—' : data?.totals.overdue?.toLocaleString('zh-CN') ?? '—'}</strong><small>单</small>
+            </button>
+            <div className="fault-open-breakdown" aria-label="当前在办等于待处理加处理中">
+              {(['waiting', 'processing'] as const).map((part, index) => <Fragment key={part}>
+                {index > 0 && <span className="fault-composition-plus" aria-hidden="true">＋</span>}
+                <button className={`fault-submetric fault-submetric-${part}`} disabled={!data || loading || !!error} onClick={() => setMetric(part)} aria-label={`${FAULT_OVERVIEW_METRICS[part]} ${data?.totals[part] ?? '加载中'} 单，查看分析`}>
+                  <span>{FAULT_OVERVIEW_METRICS[part]}</span><strong>{loading ? '—' : data?.totals[part]?.toLocaleString('zh-CN') ?? '—'}</strong>
+                </button>
+              </Fragment>)}
+            </div>
+          </>}
+        </article>;
+      })}</div>
+      <p className="fault-summary-note">当前在办 = 待处理 + 处理中，逾期为在办子集，不重复累加；按处置截止时间统计，挂起停表，未设置截止时间不计入逾期。</p>
+    </section>
+    <FaultTrendCard refresh={revision} />
+    <FaultWeeklyReport refresh={revision} />
+    {metric && <FaultAnalysisModal key={metric} metric={metric} onClose={close} />}
+  </div>;
+}
@@ -1,3 +1,4 @@
+import type { FaultDashboardFilters } from '../../../shared/assets/faults';
 import { useCallback, useEffect, useRef, useState } from 'react';
 import { CalendarDays, ChevronDown, RefreshCw } from 'lucide-react';
 import { Bar, BarChart, CartesianGrid, Legend, ResponsiveContainer, Tooltip, XAxis, YAxis } from 'recharts';
@@ -14,9 +15,11 @@ function initialRange() {
 }
 const statusLabels = { all: '新增故障', closed: '其中已闭环', unclosed: '其中未闭环' };
 const countKeys = { all: 'reported', closed: 'closed', unclosed: 'unclosed' } as const;
-export function FaultTrendCard({ refresh }: { refresh: number }) {
-  const [range, setRange] = useState(initialRange);
+export function FaultTrendCard({ refresh, scope = {}, scopeLabel = '', period }: { refresh: number; scope?: FaultDashboardFilters; scopeLabel?: string; period?: { start: string; end: string } }) {
+  const [range, setRange] = useState(() => period || initialRange());
  const [granularity, setGranularity] = useState<'day' | 'month'>('day');
+  const scopeKey = new URLSearchParams(scope).toString();
+  useEffect(() => { if (period) setRange(period); }, [period?.start, period?.end]);
  const [data, setData] = useState<FaultTrendResponse | null>(null);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState('');
@@ -28,22 +31,22 @@ export function FaultTrendCard({ refresh }: { refresh: number }) {
  useEffect(() => {
    const controller = new AbortController();
    setLoading(true); setError(''); setData(null);
-    const params = new URLSearchParams({ ...range, granularity });
+    const params = new URLSearchParams({ ...range, granularity, ...scope });
    fetchJson<FaultTrendResponse>(`/api/asset-faults/trend?${params}`, { signal: controller.signal })
      .then(result => { if (!controller.signal.aborted) setData(result); })
      .catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); })
      .finally(() => { if (!controller.signal.aborted) setLoading(false); });
    return () => controller.abort();
-  }, [range.start, range.end, granularity, revision, refresh]);
+  }, [range.start, range.end, granularity, revision, refresh, scopeKey]);
  const drill = (status: FaultTrendStatus, period?: string) => {
    if (!data || loading) return;
-    const params = new URLSearchParams({ start: data.start, end: data.end, granularity: data.granularity, status });
+    const params = new URLSearchParams({ start: data.start, end: data.end, granularity: data.granularity, status, ...scope });
    if (period) params.set('period', period);
    setSource({ url: `/api/asset-faults/trend-analysis?${params}`, title: `故障处理趋势 · ${statusLabels[status]}`, defaultDimensions: ['handler', 'faultStatus'],
      periodLabel: `${data.start} 至 ${data.end}${period ? ` · ${period}` : ''} · 按提报日期` });
  };
  return <section className="fault-trend fault-summary" aria-label="故障处理趋势" aria-busy={loading}>
-    <div className="fault-trend-heading"><h2><CalendarDays size={16} />故障处理趋势</h2><div className="fault-report-actions"><AnalysisExportButton disabled={loading || !data || !!error} onExport={() => data ? downloadFaultReport({ kind: 'trend', data }, chartRef.current?.querySelector<SVGSVGElement>('svg.recharts-surface[role=application]') || undefined) : undefined} /><div role="group" aria-label="趋势时间粒度">{(['day', 'month'] as const).map(value => <button key={value} aria-pressed={granularity === value} onClick={() => setGranularity(value)}>{value === 'day' ? '按日' : '按月'}</button>)}</div></div></div>
+    <div className="fault-trend-heading"><h2><CalendarDays size={16} />故障处理趋势</h2><div className="fault-report-actions"><AnalysisExportButton disabled={loading || !data || !!error} onExport={() => data ? downloadFaultReport({ kind: 'trend', data, filterLabel: scopeLabel }, chartRef.current?.querySelector<SVGSVGElement>('svg.recharts-surface[role=application]') || undefined) : undefined} /><div role="group" aria-label="趋势时间粒度">{(['day', 'month'] as const).map(value => <button key={value} aria-pressed={granularity === value} onClick={() => setGranularity(value)}>{value === 'day' ? '按日' : '按月'}</button>)}</div></div></div>
    <p className="fault-trend-definition">按提报日期统计新增故障，展示这批故障截至当前的闭环情况。新增 = 已闭环 + 未闭环。点击柱内色块，可按运维处置人、故障工单状态查看对应日期的故障。</p>
    <FlowDateRangePicker dateLabel="故障提报时间" value={range} onChange={setRange} />
    {error ? <div className="fault-message" role="alert">故障趋势加载失败，请稍后重试。<button onClick={() => setRevision(v => v + 1)}>重试</button></div> : loading || !data ? <div className="fault-trend-loading" role="status"><RefreshCw size={16} className="animate-spin" />正在加载故障趋势…</div> : <>
@@ -56,8 +59,8 @@ export function FaultTrendCard({ refresh }: { refresh: number }) {
            <YAxis allowDecimals={false} tick={{ fontSize: 10, fill: '#64748b' }} axisLine={false} tickLine={false} />
            <Tooltip cursor={{ fill: '#f1f5f9', opacity: 0.7 }} contentStyle={{ border: '1px solid #e2e8f0', borderRadius: 12, boxShadow: '0 8px 24px rgb(15 23 42 / .08)', fontSize: 12 }} labelFormatter={(_, payload) => { const point = payload?.[0]?.payload; return point ? `${point.period} · 新增 ${point.reported} 单` : ''; }} formatter={(value, name) => [`${value} 单`, name]} />
            <Legend iconType="circle" iconSize={8} wrapperStyle={{ fontSize: 11 }} />
-            <Bar dataKey="closed" name="已闭环" cursor="pointer" onClick={bar => { const period = data.periods.find(row => row.period === bar.payload?.period); if (period?.closed) drill('closed', period.period); }} fill="#10b981" stackId="faults" maxBarSize={34} isAnimationActive={false} />
-            <Bar dataKey="unclosed" name="未闭环" cursor="pointer" onClick={bar => { const period = data.periods.find(row => row.period === bar.payload?.period); if (period?.unclosed) drill('unclosed', period.period); }} fill="#f59e0b" stackId="faults" maxBarSize={34} isAnimationActive={false} />
+            <Bar dataKey="closed" name="已闭环" cursor="pointer" onClick={bar => { const period = data.periods.find(row => row.period === bar.payload?.period); if (period?.closed) drill('closed', period.period); }} fill="#2475ff" stackId="faults" maxBarSize={34} isAnimationActive={false} />
+            <Bar dataKey="unclosed" name="未闭环" cursor="pointer" onClick={bar => { const period = data.periods.find(row => row.period === bar.payload?.period); if (period?.unclosed) drill('unclosed', period.period); }} fill="#ff981a" stackId="faults" maxBarSize={34} isAnimationActive={false} />
          </BarChart>
        </ResponsiveContainer>
      </div> : <p className="fault-empty">所选时间范围暂无新增故障</p>}
@@ -1,3 +1,4 @@
+import type { FaultDashboardFilters } from '../../../shared/assets/faults';
 import { useCallback, useEffect, useRef, useState } from 'react';
 import { ClipboardList, RefreshCw } from 'lucide-react';
 import { CartesianGrid, Line, LineChart, ResponsiveContainer, Tooltip, XAxis, YAxis } from 'recharts';
@@ -11,8 +12,10 @@ import { FaultAnalysisModal, type FaultAnalysisSource } from './FaultAnalysisMod

 const metrics: FaultWeeklyMetric[] = ['reported', 'closed'];
 const definition = '新增故障按提报时间统计，解决故障按解决时间统计；同一故障可在不同日期分别计入两个指标。';
-export function FaultWeeklyReport({ refresh }: { refresh: number }) {
-  const [range, setRange] = useState(() => getWeeklyFlowRange());
+export function FaultWeeklyReport({ refresh, scope = {}, scopeLabel = '', period }: { refresh: number; scope?: FaultDashboardFilters; scopeLabel?: string; period?: { start: string; end: string } }) {
+  const [range, setRange] = useState(() => period || getWeeklyFlowRange());
+  const scopeKey = new URLSearchParams(scope).toString();
+  useEffect(() => { if (period) setRange(period); }, [period?.start, period?.end]);
  const [data, setData] = useState<FaultWeeklyResponse | null>(null);
  const [error, setError] = useState('');
  const [loading, setLoading] = useState(true);
@@ -24,22 +27,22 @@ export function FaultWeeklyReport({ refresh }: { refresh: number }) {
  useEffect(() => {
    const controller = new AbortController();
    setLoading(true); setData(null); setError('');
-    fetchJson<FaultWeeklyResponse>(`/api/asset-faults/weekly-report?${new URLSearchParams({ start: range.start, end: range.end })}`, { signal: controller.signal })
+    fetchJson<FaultWeeklyResponse>(`/api/asset-faults/weekly-report?${new URLSearchParams({ start: range.start, end: range.end, ...scope })}`, { signal: controller.signal })
      .then(result => { if (!controller.signal.aborted) setData(result); })
      .catch(e => { if (!controller.signal.aborted) setError(e instanceof Error ? e.message : '加载失败'); })
      .finally(() => { if (!controller.signal.aborted) setLoading(false); });
    return () => controller.abort();
-  }, [range.start, range.end, revision, refresh]);
+  }, [range.start, range.end, revision, refresh, scopeKey]);
  const drill = (metric: FaultWeeklyMetric, day?: string) => {
    if (!data || loading) return;
-    const params = new URLSearchParams({ start: data.start, end: data.end, metric });
+    const params = new URLSearchParams({ start: data.start, end: data.end, metric, ...scope });
    if (day) params.set('day', day);
    setSource({ url: `/api/asset-faults/weekly-report-analysis?${params}`, title: `故障运维周报 · ${FAULT_WEEKLY_METRICS[metric]}`,
      periodLabel: `${day || `${data.start} 至 ${data.end}`} · 按事件发生时间`, definition });
  };
  return <section className="fault-weekly fault-trend fault-summary" aria-label="故障运维周报" aria-busy={loading}>
-    <div className="fault-trend-heading"><h2><ClipboardList size={16} />故障运维周报</h2><div className="fault-report-actions"><span className="fault-weekly-unit">单位：单</span><AnalysisExportButton disabled={loading || !data || !!error} onExport={() => data ? downloadFaultReport({ kind: 'weekly', data }, chartRef.current?.querySelector<SVGSVGElement>('svg.recharts-surface[role=application]') || undefined) : undefined} /></div></div>
-    <p className="fault-trend-definition">按日展示新增故障和解决故障。默认业务周为周六至周五，可自选日期。</p>
+    <div className="fault-trend-heading"><h2><ClipboardList size={16} />故障运维周报</h2><div className="fault-report-actions"><span className="fault-weekly-unit">单位：单</span><AnalysisExportButton disabled={loading || !data || !!error} onExport={() => data ? downloadFaultReport({ kind: 'weekly', data, filterLabel: scopeLabel }, chartRef.current?.querySelector<SVGSVGElement>('svg.recharts-surface[role=application]') || undefined) : undefined} /></div></div>
+    <p className="fault-trend-definition">按日展示新增故障和解决故障。{period ? '统计周期沿用查询范围，可在下方单独调整。' : '默认业务周为周六至周五，可自选日期。'}</p>
    <FlowDateRangePicker dateLabel="提报 / 解决时间" value={range} onChange={setRange} />
    {error ? <div className="fault-message" role="alert">故障运维周报加载失败，请稍后重试。<button onClick={() => setRevision(v => v + 1)}>重试</button></div> : loading || !data ? <div className="fault-trend-loading" role="status"><RefreshCw size={16} className="animate-spin" />正在加载故障运维周报…</div> : <>
      <div className="fault-trend-totals">{metrics.map(metric => <button key={metric} className={`fault-weekly-${metric}`} disabled={!data.totals[metric]} onClick={() => drill(metric)} aria-label={`周报${FAULT_WEEKLY_METRICS[metric]} ${data.totals[metric]} 单，查看分析`}><strong>{data.totals[metric].toLocaleString()}</strong><span>{FAULT_WEEKLY_METRICS[metric]} ↗</span></button>)}</div>
@@ -0,0 +1,17 @@
+import type { FaultDashboardResponse } from '../../../shared/assets/faults';
+export async function downloadDashboard(data:FaultDashboardResponse,filters:string) {
+ const {default:ExcelJS}=await import('exceljs');const book=new ExcelJS.Workbook();book.creator='羚牛氢能 BI';
+ const tables: {name:string;headers:string[];rows:(string|number)[][]}[]=[
+  {name:'管理总览',headers:['指标','数量','口径'],rows:[['期间新增故障',data.totals.reported,'按提报日期'],['受影响车辆',data.totals.vehicles,'本期故障车辆去重'],['当前在办',data.totals.open,'全部待处理 + 处理中'],['逾期',data.totals.overdue,'当前在办中超过处置截止时间'],['待处理',data.totals.waiting,'全部待处理'],['处理中',data.totals.processing,'全部处理中'],['今日新增',data.totals.todayReported,'北京时间今日提报'],['本日解决',data.totals.todayClosed,'北京时间今日解决'],['累计台账',data.totals.ledger,'当前筛选范围的全部有效故障']]},
+  ...Object.entries(data.distributions).map(([key,rows])=>({name:({region:'区域分布',level:'故障程度',customer:'客户影响',model:'车型分布'} as Record<string,string>)[key],headers:['分组','本期故障','已闭环','未闭环','影响车辆','当前在办'],rows:rows.map(r=>[r.label,r.reported,r.closed,r.unclosed,r.vehicles,r.open])})),
+  {name:'车型与部位',headers:['品牌车型','故障部位','故障数量'],rows:data.matrix.cells.filter(c=>c.count).map(c=>[c.model,c.category,c.count])},
+ ];
+ for(const table of tables){const sheet=book.addWorksheet(table.name);sheet.columns=table.headers.map((_,i)=>({width:i===0?32:24}));sheet.mergeCells(1,1,1,table.headers.length);sheet.getCell('A1').value=`故障风险与服务分析 · ${table.name}`;sheet.getRow(1).height=36;sheet.getCell('A1').font={size:18,bold:true,color:{argb:'FFFFFFFF'}};sheet.getCell('A1').fill={type:'pattern',pattern:'solid',fgColor:{argb:'FF1E293B'}};
+  sheet.mergeCells(2,1,2,table.headers.length);sheet.getCell('A2').value=`${data.start} 至 ${data.end} · ${filters||'全部数据权限范围'}`;sheet.getCell('A2').alignment={wrapText:true};sheet.getRow(2).height=32;
+  sheet.mergeCells(3,1,3,table.headers.length);sheet.getCell('A3').value=`数据时间：${new Date(data.updatedAt).toLocaleString('zh-CN',{timeZone:'Asia/Shanghai',hour12:false})}（北京时间）`;
+  sheet.getRow(5).values=table.headers;table.rows.forEach((r,i)=>sheet.getRow(i+6).values=r);
+  for(let n=5;n<=table.rows.length+5;n++){sheet.getRow(n).height=27;sheet.getRow(n).eachCell((cell,i)=>{cell.font={name:'Microsoft YaHei',size:11,bold:n===5,color:{argb:n===5?'FFFFFFFF':'FF334155'}};cell.fill={type:'pattern',pattern:'solid',fgColor:{argb:n===5?'FF2563EB':n%2?'FFF5F8FC':'FFFFFFFF'}};cell.alignment={vertical:'middle',horizontal:i===1?'left':'center'};if(typeof cell.value==='number')cell.numFmt='#,##0';});}
+  sheet.views=[{state:'frozen',ySplit:5,showGridLines:false}];sheet.autoFilter={from:'A5',to:{row:table.rows.length+5,column:table.headers.length}};
+ }
+ const bytes=await book.xlsx.writeBuffer(),url=URL.createObjectURL(new Blob([new Uint8Array(bytes)],{type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'}));const a=document.createElement('a');a.href=url;a.download=`故障风险与服务分析_${data.start}_${data.end}.xlsx`;a.click();setTimeout(()=>URL.revokeObjectURL(url),10000);
+}
@@ -0,0 +1,123 @@
+/* Fault analysis workspace: compact panels and a shared, explicit query scope. */
+.fd-page,.fault-overview-page { --fd-blue:#0965ff; --fd-ink:#162449; --fd-muted:#7385a4; --fd-border:#e3ebf6; padding:18px 22px 22px; background:#f8fbff; color:var(--fd-ink); font-size:12px; min-height:100vh; }
+.fd-page button { cursor:pointer; }.fd-page button:disabled { cursor:default; opacity:.48; }.fd-page button:focus-visible,.fd-page select:focus-visible,.fd-page input:focus-visible,.fd-page summary:focus-visible { outline:2px solid #2563eb; outline-offset:3px; }
+.fd-header { display:flex; align-items:center; justify-content:space-between; gap:18px; }.fd-breadcrumb { color:var(--fd-muted); font-size:11px; margin-bottom:10px; }.fd-heading-line { display:flex; gap:16px; align-items:center; }.fd-heading-line h1 { font-size:24px; font-weight:750; letter-spacing:-.04em; color:#081e50; white-space:nowrap; }.fd-heading-line p { font-size:12px; color:#526584; }
+.fd-header-actions { display:flex; align-items:center; gap:16px; flex-shrink:0; font-size:11px; }.fd-header-actions>span { color:var(--fd-muted); }.fd-header-actions>button,.fd-header-actions .analysis-button { display:inline-flex; align-items:center; gap:6px; }.fd-header-actions .analysis-button { background:white; border:1px solid #d8e3f2; border-radius:6px; padding:9px 15px; }.fd-header-actions .analysis-export-action { display:flex; flex-direction:column; align-items:flex-end; }.fd-header-actions small { color:#dc2626; }
+.fd-tabs { display:flex; gap:28px; border-bottom:1px solid var(--fd-border); margin:14px 0 14px; }.fd-tabs button { padding:10px 20px 9px; border-bottom:3px solid transparent; font-size:13px; font-weight:600; }.fd-tabs button[aria-current=page] { color:var(--fd-blue); border-color:var(--fd-blue); }
+.fd-toolbar { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }.fd-date { flex:1.6 1 275px; min-width:240px; }.fd-date>button { margin:0; padding:6px 10px; border-radius:6px; box-shadow:none; gap:8px; height:42px; }.fd-date>button>span:first-child { width:24px; height:24px; background:white; }.fd-date>button>span:nth-child(2) { display:flex; align-items:center; gap:10px; }.fd-date>button>span:nth-child(2)>span:first-child { font-size:10px; }.fd-date>button>span:nth-child(2)>span:nth-child(2) { margin:0; font-size:11px; font-weight:500; }.fd-date>button>span:nth-child(3) { display:none; }
+.fd-filter { display:flex; align-items:center; gap:10px; flex:1 1 170px; min-width:0; }.fd-filter>span { color:#687e9f; font-size:11px; white-space:nowrap; }.fd-filter select { border:1px solid #d8e3f2; height:36px; border-radius:5px; min-width:0; flex:1; padding:0 10px; background:#fff; font-size:11px; }
+.fd-filter-toggle { display:flex; align-items:center; justify-content:center; gap:8px; border:1px solid #d8e3f2; height:36px; border-radius:5px; padding:0 13px; background:white; }.fd-filter-toggle svg { color:var(--fd-blue); }.fd-query { background:var(--fd-blue); color:white; padding:10px 27px; border-radius:5px; font-size:12px; font-weight:600; white-space:nowrap; }.fd-more-filters { flex-basis:100%; display:flex; align-items:center; flex-wrap:wrap; gap:14px; padding:12px; border:1px solid var(--fd-border); border-radius:6px; background:#fff; }.fd-more-filters>button { color:var(--fd-blue); padding:10px; }.fd-scope-note { color:#7e91ad; font-size:10px; margin:7px 0 10px; }.fd-scope-note strong { color:#c9750a; margin-left:8px; font-weight:500; }
+.fd-content.is-loading { opacity:.5; pointer-events:none; }.fd-kpis { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px; }.fd-kpi { background:white; border:1px solid var(--fd-border); border-radius:7px; padding:10px 14px; min-width:0; height:117px; }.fd-kpi>button { display:grid; grid-template-columns:32px 1fr 15px; align-items:center; width:100%; text-align:left; gap:7px 10px; }.fd-kpi>button>span { font-size:12px; font-weight:600; }.fd-kpi>button>svg:last-of-type { color:#8ca1c2; }.fd-kpi-icon { width:30px; height:30px; padding:6px; border-radius:8px; color:var(--fd-blue); background:#eff6ff; }.fd-kpi strong { grid-column:2/4; font-size:29px; font-weight:650; line-height:1.05; font-variant-numeric:tabular-nums; }.fd-kpi strong small { font-size:11px; font-weight:400; color:#8596b0; margin-left:8px; }.fd-kpi>p { display:flex; align-items:center; gap:8px; margin-top:12px; font-size:10px; color:#8091ac; }.fd-kpi>p b { font-size:12px; }.fd-kpi>p small { margin-left:auto; font-size:9px; }.fd-kpi-parts { display:flex; align-items:center; gap:5px; margin-top:9px; }.fd-kpi-parts>span { color:#8495af; }.fd-kpi-parts button { flex:1; display:flex; justify-content:space-between; align-items:center; background:#fff9e8; color:#ad7615; padding:6px 8px; border-radius:4px; font-size:10px; }.fd-kpi-parts button:last-child { background:#eff5ff; color:#1b65d8; }.fd-kpi-parts b { color:var(--fd-ink); font-size:13px; }
+.fd-blue { color:#1764f4; }.fd-purple { color:#5645ef; background:#f2f0ff; }.fd-orange { color:#d98308; }.fd-danger { color:#dc2626!important; }.fd-green { color:#059669; }.fd-kpi-icon.fd-orange { background:#fff7e6; }.fd-kpi-icon.fd-danger { background:#fff0f2; }
+.fd-today-stats { display:flex; align-items:center; gap:18px; padding:9px 2px; font-size:10px; color:#8192ad; }.fd-today-stats button { color:#647896; }.fd-today-stats b { color:#294779; margin-left:6px; font-size:11px; }.fd-insight { display:flex; align-items:center; gap:10px; background:#eef6ff; border:1px solid #c7ddff; color:#0965ff; padding:10px 13px; border-radius:6px; margin:0 0 12px; font-size:11px; }.fd-insight>svg { flex-shrink:0; }.fd-insight strong { font-weight:550; }.fd-insight>span { color:#7e94b8; font-size:10px; margin-left:auto; }.fd-insight button { display:flex; align-items:center; gap:4px; flex-shrink:0; }
+.fd-grid { display:grid; gap:12px; margin-bottom:12px; }.fd-grid-primary { grid-template-columns:1.5fr 1fr; }.fd-grid-secondary { grid-template-columns:1.2fr 1fr; }.fd-panel { background:#fff; border:1px solid var(--fd-border); border-radius:7px; padding:12px; min-width:0; }.fd-panel-title { display:flex; align-items:center; flex-wrap:wrap; gap:10px; margin-bottom:11px; }.fd-panel-title h2 { font-size:14px; font-weight:700; color:#172647; border-left:4px solid #0965ff; padding-left:9px; line-height:16px; }.fd-panel-title>span { color:#7a8eac; font-size:10px; }.fd-panel-title>button { display:flex; align-items:center; gap:4px; margin-left:auto; color:var(--fd-blue); font-size:11px; }.fd-panel-title>.fd-chip { margin-left:auto; }.fd-focus .fd-panel-title>.fd-chip { margin-left:0; }.fd-chip { padding:4px 8px; border:1px solid #e5ebf4; border-radius:4px; background:#f8fafc; }.fd-chip.fd-orange { color:#ad7615; background:#fff9e9; }.fd-chip.fd-danger { background:#fff1f2; border-color:#fecdd3; }
+.fd-chart-controls { display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap; }.fd-segment { display:flex; border-radius:4px; background:#f3f6fa; padding:2px; gap:2px; }.fd-segment button { padding:6px 12px; font-size:11px; white-space:nowrap; border-radius:3px; color:#5b7296; }.fd-segment button[aria-pressed=true] { color:white; background:var(--fd-blue); }.fd-segment button:disabled { font-size:9px; padding:6px; }.fd-legend { display:flex; gap:18px; justify-content:flex-end; margin:12px 0 2px; font-size:10px; }.fd-distribution-chart { max-height:360px; overflow:auto; }.fd-panel-foot { display:flex; justify-content:space-between; align-items:center; gap:8px; margin-top:7px; font-size:9px; color:#8296b3; }.fd-panel-foot button { color:var(--fd-blue); font-size:10px; flex-shrink:0; padding:3px; }.fd-caption { font-size:10px; color:#8396b2; margin:8px 0; line-height:1.6; }.fd-level-list { display:grid; gap:11px; padding:14px 12px; }.fd-level-list button { display:grid; grid-template-columns:68px 1fr 28px 12px; align-items:center; gap:10px; font-size:11px; text-align:left; }.fd-level-track { height:18px; }.fd-level-track>span { display:block; height:100%; min-width:2px; }.fd-level-list button>svg { color:#90a3bf; }.fd-info { display:flex; align-items:center; gap:10px; font-size:10px; line-height:1.7; border-radius:5px; padding:8px 10px; color:#286dd7; background:#eff6ff; }.fd-info svg { flex-shrink:0; }
+.fd-table-scroll { overflow:auto; max-height:420px; border:1px solid #e7eef7; border-radius:5px; }.fd-page table { width:100%; border-collapse:collapse; font-size:11px; }.fd-page th { font-size:10px; font-weight:600; background:#f7f9fc; color:#637b9e; text-align:left; }.fd-page td,.fd-page th { padding:7px 9px; border-bottom:1px solid #edf2f9; }.fd-page tbody tr:last-child td,.fd-page tbody tr:last-child th { border-bottom:none; }.fd-page table button { color:#1764ef; }.fd-page table button:hover { text-decoration:underline; }.fd-matrix { min-width:620px; }.fd-matrix td,.fd-matrix thead th:not(:first-child) { text-align:center; border-left:1px solid #ecf2fa; }.fd-matrix tbody th { max-width:145px; min-width:135px; white-space:normal; background:white; color:#334a6d; }.fd-matrix td button { display:block; width:100%; min-width:38px; color:#12356e; font-weight:600; }.fd-customers { min-width:440px; }.fd-customer-meter { display:flex; align-items:center; gap:7px; width:100%; }.fd-customer-meter progress { width:110px; height:9px; appearance:none; border:none; background:transparent; border-radius:8px; }.fd-customer-meter progress::-webkit-progress-bar { background:#f0f5fc; border-radius:8px; }.fd-customer-meter progress::-webkit-progress-value { background:#2475ff; border-radius:8px; }.fd-customer-meter progress::-moz-progress-bar { background:#2475ff; border-radius:8px; }.fd-customers td:first-child { color:#8193b0; }.fd-customers td:last-child { text-align:center; }
+.fd-tickets { min-width:1000px; }.fd-tickets td { line-height:1.5; }.fd-tickets small { display:block; margin-top:2px; font-size:9px; color:#7d90ab; }.fd-tickets strong { font-weight:600; }.fd-tickets td:nth-child(2) { max-width:140px; }.fd-description { max-width:250px; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }.fd-grade { white-space:nowrap; font-size:10px; padding:3px 5px; border-radius:3px; color:#73859f; background:#f2f5f9; }.fd-grade-L1 { color:#dc2626; background:#fff0f1; }.fd-grade-L2 { color:#cf7b00; background:#fff7e8; }.fd-grade-L3 { color:#1264e8; background:#eff6ff; }.fd-grade-L4 { color:#5786c1; background:#eff6ff; }.fd-tickets .fd-overdue-tag { display:inline-block; color:#dc2626; background:#fff1f2; padding:1px 4px; margin-left:5px; }.fd-focus .fd-caption { margin-bottom:0; }.fd-quality { display:flex; gap:7px; align-items:center; font-size:10px; color:#8a9ab1; padding:12px 2px 0; line-height:1.7; }.fd-quality svg { flex-shrink:0; }.fd-empty { padding:28px 16px; text-align:center; color:#8798b1; }.fd-loading { display:flex; align-items:center; justify-content:center; gap:12px; padding:80px 20px; color:#8193ad; }.fd-chart-data { font-size:10px; color:#6b83a5; margin-top:6px; }.fd-chart-data summary { cursor:pointer; }.fd-chart-data[open] { max-height:260px; overflow:auto; }.fd-chart-data table { margin-top:6px; }
+.fd-analysis-banner { display:flex; justify-content:space-between; gap:16px; padding:15px; background:white; border:1px solid var(--fd-border); border-radius:6px; margin-bottom:12px; }.fd-analysis-banner h2 { font-weight:600; margin-bottom:6px; }.fd-analysis-banner p { color:#7c8da8; font-size:11px; }.fd-reports>.fault-summary { margin-top:12px; border-radius:8px; border-color:var(--fd-border); padding:16px; }.fd-detail-controls { display:flex; flex-wrap:wrap; justify-content:space-between; gap:12px; margin:14px 0; }.fd-detail-controls>label { display:flex; align-items:center; gap:7px; border:1px solid var(--fd-border); padding:7px 10px; border-radius:5px; color:#90a0b7; }.fd-detail-controls input { width:220px; outline:none; color:#334155; }.fd-details .fd-table-scroll { max-height:65vh; }.fd-load-more { display:block; margin:12px auto; color:var(--fd-blue); padding:10px; }
+@media(min-width:1350px) { .fd-toolbar { flex-wrap:nowrap; position:relative; }.fd-toolbar:has(.fd-more-filters) { flex-wrap:wrap; }.fd-date { flex:0 0 330px; }.fd-filter { flex:1 1 150px; }.fd-query { padding:10px 29px; } }
+@media(max-width:1150px) { .fd-header { align-items:flex-start; }.fd-heading-line { display:block; }.fd-heading-line p { margin-top:7px; }.fd-header-actions { gap:10px; flex-wrap:wrap; justify-content:flex-end; max-width:260px; }.fd-kpis { gap:10px; }.fd-insight>span { display:none; }.fd-grid-primary,.fd-grid-secondary { grid-template-columns:1.2fr 1fr; }.fd-kpi>p small { display:none; } }
+@media(max-width:900px) { .fd-grid-primary,.fd-grid-secondary { grid-template-columns:1fr; }.fd-kpis { grid-template-columns:repeat(2,minmax(0,1fr)); }.fd-header-actions>span { display:none; }.fd-heading-line h1 { font-size:21px; } }
+@media(max-width:767px) { .fd-page { padding:14px 12px 20px; }.fd-header { gap:10px; }.fd-breadcrumb { font-size:10px; margin-bottom:6px; }.fd-heading-line h1 { font-size:19px; }.fd-heading-line p { display:none; }.fd-header-actions { gap:7px; }.fd-header-actions .analysis-button { font-size:10px; padding:9px 7px; min-height:36px; }.fd-header-actions>button { font-size:0; padding:8px; }.fd-header-actions>button svg { width:16px; height:16px; }.fd-tabs { gap:0; margin:10px 0 12px; }.fd-tabs button { flex:1; padding:10px 0; font-size:12px; }.fd-toolbar { gap:8px; }.fd-date { flex-basis:100%; min-width:0; }.fd-date>button { height:40px; }.fd-date>button>span:nth-child(2) { justify-content:space-between; }.fd-filter { flex:1 1 calc(50% - 8px); gap:5px; }.fd-filter>span { font-size:10px; min-width:40px; }.fd-filter select { height:36px; padding:0 6px; font-size:11px; }.fd-toolbar>.fd-filter:nth-of-type(3) { flex-basis:100%; }.fd-filter-toggle { flex:1; }.fd-toolbar>.fd-query { flex:1; padding:10px; }.fd-scope-note { font-size:9px; line-height:1.7; }.fd-scope-note strong { display:block; margin:0; }.fd-kpis { gap:8px; }.fd-kpi { height:111px; padding:10px; }.fd-kpi>button { grid-template-columns:25px 1fr 12px; gap:7px; }.fd-kpi-icon { width:25px; height:25px; padding:5px; }.fd-kpi>button>span { font-size:11px; }.fd-kpi strong { font-size:26px; }.fd-kpi>p { font-size:9px; gap:6px; margin-top:10px; }.fd-kpi>p b { font-size:11px; }.fd-kpi-parts { margin-top:9px; gap:3px; }.fd-kpi-parts button { font-size:9px; padding:5px; }.fd-kpi-parts b { font-size:12px; }.fd-today-stats { gap:12px; justify-content:space-between; font-size:9px; }.fd-today-stats>span { display:none; }.fd-today-stats b { margin-left:4px; }.fd-insight { font-size:10px; align-items:flex-start; gap:7px; padding:9px; flex-wrap:wrap; }.fd-insight strong { flex:1; line-height:1.7; }.fd-insight button { margin-left:auto; padding:4px; }.fd-grid { gap:10px; margin-bottom:10px; }.fd-panel { padding:10px; }.fd-panel-title h2 { font-size:13px; }.fd-panel-title { gap:7px; }.fd-panel-title>span { font-size:9px; }.fd-chart-controls { gap:8px; }.fd-segment button { padding:7px 9px; font-size:10px; }.fd-level-list { padding:12px 6px; }.fd-level-list button { min-height:28px; }.fd-panel-foot { font-size:9px; }.fd-focus .fd-chip { font-size:9px; padding:3px 5px; }.fd-focus .fd-panel-title>button { font-size:10px; }.fd-analysis-banner { flex-direction:column; }.fd-quality { font-size:9px; align-items:flex-start; }.fd-detail-controls>label { width:100%; }.fd-detail-controls input { width:100%; }.fd-more-filters { gap:9px; padding:9px; }.fd-more-filters .fd-filter { flex-basis:100%; }.fd-page .fault-analysis-dialog { font-size:12px; } }
+@media(prefers-reduced-motion:reduce) { .fd-page * { scroll-behavior:auto; } }
+/* The workspace owns its breadcrumb, so the shell's fixed breadcrumb must not cover it. */
+.app-shell-content:has(>.fd-page)>.fixed.top-0 { display:none; }
+.fd-breadcrumb { margin-bottom:6px; line-height:16px; }.fd-heading-line h1 { line-height:1.25; }.fd-tabs { margin-top:10px; margin-bottom:10px; }
+.fd-date>button>span:nth-child(2)>span:first-child { display:none; }.fd-date>button>span:nth-child(2)>span:nth-child(2) { font-size:12px; gap:14px; }
+.fd-focus td { padding-top:6px; padding-bottom:6px; }
+@media(max-width:360px) {
+ .fd-header { flex-wrap:wrap; gap:8px; }
+ .fd-header-actions { width:100%; justify-content:flex-end; }
+ .fd-kpi>button { grid-template-columns:21px 1fr 10px; gap:6px 4px; }
+ .fd-kpi-icon { width:21px; height:21px; padding:4px; }
+ .fd-kpi>button>span { font-size:10px; }
+}
+@media(max-width:360px) {
+ .fd-toolbar>.fd-filter { flex-basis:100%; }
+ .fd-toolbar>.fd-filter>span { min-width:42px; }
+}
+@media(min-width:901px) {
+ .fd-grid-primary .fd-panel-title { margin-bottom:8px; }
+ .fd-grid-primary .fd-caption { margin:5px 0; }
+ .fd-level-list { gap:8px; padding:8px 12px; }
+ .fd-grid-primary .fd-info { padding:6px 10px; }
+ .fd-grid-secondary td,.fd-grid-secondary th { padding:4px 9px; }
+}
+
+/* Overview shares the analysis palette while preserving its statistics and report layout. */
+.fault-overview-page button { cursor:pointer; }
+.fault-overview-page button:disabled { cursor:default; }
+.fault-overview-page button:focus-visible { outline:2px solid var(--fd-blue); outline-offset:3px; }
+.fault-overview-page>.fault-summary {
+ padding:16px; border-color:var(--fd-border); border-radius:7px; box-shadow:none;
+}
+.fault-overview-page>.fault-trend { margin-top:12px; }
+.fault-overview-page .fault-summary-heading { margin-bottom:14px; }
+.fault-overview-page .fault-summary-heading h2,
+.fault-overview-page .fault-trend-heading h2 {
+ border-left:4px solid var(--fd-blue); padding-left:9px; color:#172647;
+ font-size:14px; font-weight:700; line-height:16px;
+}
+.fault-overview-page .fault-trend-heading h2>svg { display:none; }
+.fault-overview-page .fault-summary-heading>span,
+.fault-overview-page .fault-trend-definition,
+.fault-overview-page .fault-summary-note { color:var(--fd-muted); }
+.fault-overview-page .fault-metric { border-color:var(--fd-border); border-radius:7px; }
+.fault-overview-page .fault-metric-main { border-radius:7px; }
+.fault-overview-page .fault-metric:hover { border-color:#93c5fd; box-shadow:0 3px 10px rgb(9 101 255 / .05); }
+.fault-overview-page .fault-metric-label { color:#334a6d; font-weight:600; }
+.fault-overview-page .fault-metric-count strong { color:var(--fd-ink); }
+.fault-overview-page .fault-metric p { color:var(--fd-muted); }
+.fault-overview-page .fault-metric-link { color:var(--fd-blue); }
+.fault-overview-page .fault-metric-icon { color:var(--fd-blue); background:#eff6ff; }
+.fault-overview-page .fault-metric-closed .fault-metric-icon { color:#059669; background:#ecfdf5; }
+.fault-overview-page .fault-metric-open .fault-metric-icon { color:#d98308; background:#fff7e6; }
+.fault-overview-page .fault-metric-ledger .fault-metric-icon { color:#5645ef; background:#f2f0ff; }
+.fault-overview-page .fault-open-breakdown { border-color:var(--fd-border); }
+.fault-overview-page .fault-submetric { border-radius:4px; }
+.fault-overview-page .fault-submetric-waiting { color:#ad7615; background:#fff9e8; }
+.fault-overview-page .fault-submetric-processing { color:#1b65d8; background:#eff5ff; }
+.fault-overview-page .fault-submetric strong { color:var(--fd-ink); }
+.fault-overview-page .fault-overdue-subset { border-color:#fecdd3; border-radius:4px; background:#fff1f2; }
+.fault-overview-page .fault-report-actions .analysis-export-action button {
+ border-color:#d8e3f2; border-radius:6px; color:#526584; box-shadow:none;
+}
+.fault-overview-page .fault-trend-heading [role=group] { border-radius:4px; background:#f3f6fa; padding:2px; gap:2px; }
+.fault-overview-page .fault-trend-heading [role=group] button { border-radius:3px; color:#5b7296; }
+.fault-overview-page .fault-trend-heading button[aria-pressed=true] { color:white; background:var(--fd-blue); box-shadow:none; }
+.fault-overview-page [data-testid=asset-flow-date-range] {
+ border-color:#d8e3f2; border-radius:6px; padding:10px 12px; box-shadow:none;
+}
+.fault-overview-page [data-testid=asset-flow-date-range]>span:first-child { width:30px; height:30px; border-radius:6px; color:var(--fd-blue); background:#eff6ff; }
+.fault-overview-page [data-testid=asset-flow-date-range]>span:nth-child(3) { border-radius:4px; color:#687e9f; background:#f3f6fa; }
+.fault-overview-page .fault-trend-totals { border-color:var(--fd-border); border-radius:6px; background:#f7faff; }
+.fault-overview-page .fault-trend-totals button { border-color:var(--fd-border); }
+.fault-overview-page .fault-trend-all,
+.fault-overview-page .fault-trend-closed { color:#1764f4; }
+.fault-overview-page .fault-trend-unclosed { color:#d98308; }
+.fault-overview-page .fault-trend-expand { border-color:#c7ddff; border-radius:6px; color:var(--fd-blue); background:#eef6ff; }
+.fault-overview-page .fault-weekly-chart { border-color:var(--fd-border); border-radius:7px; }
+.fault-overview-page .fault-trend-table { border-color:var(--fd-border); border-radius:5px; }
+.fault-overview-page .fault-trend-table th { color:#637b9e; background:#f7f9fc; }
+.fault-overview-page .fault-trend-table td { border-color:#edf2f9; }
+@media(max-width:767px) {
+ .fault-overview-page { padding:14px 12px 20px; }
+ .fault-overview-page>.fault-summary { padding:12px; }
+ .fault-overview-page .fault-summary-heading h2,
+ .fault-overview-page .fault-trend-heading h2 { font-size:13px; }
+}
+.app-shell-content:has(>.fault-overview-page)>.fixed.top-0 { display:none; }
+.fd-kpis>.fd-kpi { display:flex; flex-direction:column; }
+.fd-kpis .fd-kpi>button { flex-shrink:0; }
+.fd-kpis .fd-kpi>p,
+.fd-kpis .fd-kpi-parts { margin-top:auto; min-height:24px; }
+.fd-kpis .fd-kpi>p { align-items:center; }
+.fd-kpis .fd-kpi-parts { gap:5px; }
+.fd-kpis .fd-kpi-parts button {
+ height:24px; min-width:0; padding:3px 7px; line-height:18px; white-space:nowrap;
+}
+.fd-kpis .fd-kpi-parts b { line-height:18px; }
+.fd-kpis .fd-kpi-parts>span { line-height:24px; font-size:12px; }
+@media(max-width:1100px) {
+ .fd-kpis { grid-template-columns:repeat(2,minmax(0,1fr)); }
+}
@@ -1,7 +1,7 @@
 import type { FaultTrendResponse, FaultWeeklyResponse } from '../../../shared/assets/faults';
 import type { Cell, Worksheet } from 'exceljs';

-export type FaultReport = { kind: 'trend'; data: FaultTrendResponse } | { kind: 'weekly'; data: FaultWeeklyResponse };
+export type FaultReport = ({ kind: 'trend'; data: FaultTrendResponse } | { kind: 'weekly'; data: FaultWeeklyResponse }) & { filterLabel?: string };
 interface ReportChartImage { dataUrl: string; width: number; height: number }
 const palette = { navy: '1E293B', text: '334155', muted: '64748B', blue: '2563EB', green: '059669', amber: 'D97706', line: 'E2E8F0', stripe: 'F8FAFC', today: 'EFF6FF', white: 'FFFFFF' };
 const fill = (color: string) => ({ type: 'pattern' as const, pattern: 'solid' as const, fgColor: { argb: `FF${color}` } });
@@ -39,6 +39,7 @@ export async function createFaultReportWorkbook(report: FaultReport, chartImage?
  merged(sheet, 2, 1, columns, `统计范围：${report.data.start} 至 ${report.data.end}  ·  ${trend && report.data.granularity === 'month' ? '按月' : '按日'}  ·  单位：单`);
  const stamp = merged(sheet, 3, 1, columns, `数据时间：${beijingTime(report.data.updatedAt)}（北京时间）`); stamp.font = { name: 'Microsoft YaHei', size: 10, color: { argb: `FF${palette.muted}` } };
  sheet.getRow(2).height = 28; sheet.getRow(4).height = 10; sheet.getRow(7).height = 10;
+  if (report.filterLabel) { const filter = merged(sheet, 4, 1, columns, `筛选条件：${report.filterLabel}`); filter.font = { name: 'Microsoft YaHei', size: 10, color: { argb: `FF${palette.muted}` } }; filter.alignment = { wrapText: true, vertical: 'middle' }; sheet.getRow(4).height = 32; }
  const sum = (column: string) => periods.length ? `SUM(${column}${start}:${column}${end})` : '0';
  const cards = trend
    ? [{ from: 1, to: 2, label: '新增故障', col: 'B', value: report.data.totals.reported, color: palette.blue }, { from: 3, to: 4, label: '已闭环', col: 'C', value: report.data.totals.closed, color: palette.green }, { from: 5, to: 5, label: '未闭环', col: 'D', value: report.data.totals.unclosed, color: palette.amber }]
@@ -0,0 +1,109 @@
+import { useCallback, useEffect, useState, type MouseEvent } from 'react';
+import { ComposedChart, Bar, Line, XAxis, YAxis, CartesianGrid, Tooltip, ResponsiveContainer, LabelList } from 'recharts';
+import { ChevronRight, RefreshCw } from 'lucide-react';
+import { HISTORY_STATE_LABELS, historyTime, shanghaiMonth, type HistoryMode, type HistoryPoint, type HistoryTrend } from '../../../shared/assets/history';
+import { fetchHistoryLive, fetchHistoryTrend } from './api';
+import { defaultHistoryPeriod, displayHistoryCounts, displayHistoryDifference, signedCount, updateLivePoint } from './presentation';
+import { HistoryDetailsDialog } from './HistoryDetailsDialog';
+import { HistorySelect } from './HistorySelect';
+import './history.css';
+
+export function AssetHistorySection({ subject, onSubjects }: { subject: string | null; onSubjects?: (names: string[]) => void }) {
+  const [mode, setMode] = useState<HistoryMode>('monthly');
+  const [year, setYear] = useState(() => Number(shanghaiMonth(new Date()).slice(0, 4)));
+  const [data, setData] = useState<HistoryTrend | null>(null);
+  const [selected, setSelected] = useState<string | null>(null);
+  const [details, setDetails] = useState<HistoryPoint | null>(null);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [retry, setRetry] = useState(0);
+  const closeDetails = useCallback(() => setDetails(null), []);
+
+  useEffect(() => {
+    const abort = new AbortController();
+    let current: HistoryTrend | null = null;
+    let busy = false;
+    let observedMonth = shanghaiMonth(new Date());
+    setData(null); setSelected(null); setDetails(null); setError(''); setLoading(true);
+    const load = async () => {
+      busy = true;
+      try {
+        const result = await fetchHistoryTrend(mode, year, subject, abort.signal);
+        if (abort.signal.aborted) return;
+        current = result; setData(result); setSelected(old => old && result.points.some(p => p.period === old) ? old : defaultHistoryPeriod(result.points));
+        onSubjects?.(result.subjects); setError('');
+      } catch (e) { if (!abort.signal.aborted) setError(e instanceof Error ? e.message : '趋势加载失败'); }
+      finally { busy = false; if (!abort.signal.aborted) setLoading(false); }
+    };
+    void load();
+    const interval = setInterval(async () => {
+      if (busy || !current || abort.signal.aborted) return;
+      const month = shanghaiMonth(new Date());
+      if (month !== observedMonth) { observedMonth = month; await load(); return; }
+      if (current.points.some(p => p.state === 'CAPTURING')) { await load(); return; }
+      if (!current.points.some(p => p.state === 'LIVE')) return;
+      busy = true;
+      try {
+        const live = await fetchHistoryLive(mode, subject, abort.signal);
+        if (abort.signal.aborted) return;
+        if (live.state !== 'LIVE') { await load(); return; }
+        current = { ...current, points: updateLivePoint(current.points, live) }; setData(current); setError('');
+      } catch (e) { if (!abort.signal.aborted) setError(e instanceof Error ? e.message : '实时数据刷新失败'); }
+      finally { busy = false; }
+    }, 5000);
+    return () => { abort.abort(); clearInterval(interval); };
+  }, [mode, year, subject, retry, onSubjects]);
+
+  const point = data?.points.find(p => p.period === selected);
+  const hasComparison = point && (['total', 'inventory', 'operating'] as const).some(key => displayHistoryDifference(point, key) != null);
+  const chart = data?.points.map(p => ({ ...p, total: displayHistoryCounts(p)?.total ?? null, operating: displayHistoryCounts(p)?.operating ?? null, inventory: displayHistoryCounts(p)?.inventory ?? null })) || [];
+  const selectBar = (entry: { originalDataIndex: number }, _index: number, event: MouseEvent<SVGPathElement>) => {
+    event.stopPropagation();
+    const item = chart[entry.originalDataIndex];
+    if (item) setSelected(item.period);
+  };
+  return <section className="asset-history" aria-labelledby="asset-history-title" data-testid="asset-history">
+    <div className="asset-history-controls"><header className="asset-history-header"><h2 id="asset-history-title">资产历史趋势</h2>
+      <div className="asset-history-modes" role="group" aria-label="历史统计方式">{(['annual', 'monthly'] as const).map(value => <button type="button" key={value} aria-pressed={mode === value} onClick={() => { setMode(value); setDetails(null); }}>{value === 'annual' ? '年度' : '月度'}</button>)}</div>
+    </header>
+    <div className="asset-history-toolbar">
+      {mode === 'monthly' && <HistorySelect label="历史年份" value={String(year)} options={(data?.years || [year]).map(y => ({ value: String(y), label: `${y}年` }))} onChange={value => { setYear(Number(value)); setDetails(null); }} />}
+      {data && <HistorySelect label="统计期间" value={selected || ''} onChange={value => { setSelected(value); setDetails(null); }} options={data.points.map(p => ({ value: p.period, label: p.label, detail: p.state === 'RECONSTRUCTED' ? '估算' : p.state === 'LIVE' ? '实时' : p.state === 'ARCHIVED' ? '归档' : p.state === 'FUTURE' ? '未来' : p.state === 'MISSING' ? '缺失' : HISTORY_STATE_LABELS[p.state] }))} />}
+      <span title="每月最后一天北京时间17:00采集；年度复用12月快照">月末 17:00</span>
+      <button type="button" className="asset-history-refresh" aria-label="刷新资产历史趋势" disabled={loading} onClick={() => setRetry(x => x + 1)}><RefreshCw size={15} /></button>
+    </div>
+    </div>
+    {loading && !data ? <p className="asset-history-empty" role="status">正在加载资产历史趋势…</p> : !data ? <p className="asset-history-empty" role="alert">{error || '暂无可用数据'} <button type="button" onClick={() => setRetry(x => x + 1)}>重试</button></p> : <>
+      {error && <p className="asset-history-warning" role="alert">{error} · 保留上次查询结果 <button type="button" onClick={() => setRetry(x => x + 1)}>重试</button></p>}
+      <p className="asset-history-unit">数量（台）</p>
+      <div className="asset-history-chart" role="img" aria-label="运营数与库存数堆叠柱，资产总数折线；精确数值和缺失状态可通过上方统计期间选择框查看">
+        <ResponsiveContainer width="100%" height="100%" minWidth={0} initialDimension={{ width: 480, height: 200 }}>
+          <ComposedChart data={chart} margin={{ top: 10, right: 14, bottom: 0, left: 0 }} onClick={state => { const p = chart.find(p => p.label === String(state?.activeLabel)); if (p) setSelected(p.period); }}>
+            <CartesianGrid stroke="#e9eff7" vertical={false} /><XAxis dataKey="label" tick={{ fontSize: 10, fill: '#64748b' }} axisLine={{ stroke: '#dbe4ef' }} tickLine={false} interval={mode === 'monthly' ? 0 : 'preserveStartEnd'} minTickGap={4} />
+            <YAxis allowDecimals={false} width={44} tick={{ fontSize: 11, fill: '#64748b' }} axisLine={false} tickLine={false} />
+            <Tooltip content={({ active, payload }) => {
+              const item = payload?.[0]?.payload as HistoryPoint | undefined;
+              const values = item && displayHistoryCounts(item);
+              return active && item ? <div className="asset-history-tooltip"><strong>{item.label} · {HISTORY_STATE_LABELS[item.state]}</strong>{values ? <p>总数 {values.total ?? '待核实'} · 运营 {values.operating} · 库存 {values.inventory}</p> : <p>暂无数量</p>}</div> : null;
+            }} />
+            <Bar onClick={selectBar} dataKey="operating" name="运营数" stackId="assets" fill="#347df5" maxBarSize={32} isAnimationActive={false} />
+            <Bar onClick={selectBar} dataKey="inventory" name="库存数" stackId="assets" fill="#9ed1fa" maxBarSize={32} isAnimationActive={false} />
+            <Line dataKey="total" name="资产总数" stroke="#132e57" strokeWidth={2} connectNulls={false} dot={{ r: 3, fill: '#fff', strokeWidth: 2 }} activeDot={{ r: 5 }} isAnimationActive={false}><LabelList dataKey="total" position="top" offset={8} fontSize={10} fill="#132e57" /></Line>
+          </ComposedChart>
+        </ResponsiveContainer>
+      </div>
+      <div className="asset-history-legend" aria-hidden="true"><span><i className="operating" />运营数</span><span><i className="inventory" />库存数</span><span><i className="total" />资产总数</span></div>
+      {point && <div className="asset-history-selected" aria-live="polite">
+        <div className="asset-history-selected-heading"><strong>{mode === 'annual' || point.state === 'LIVE' ? point.label : `${point.label}末`}</strong><span>{HISTORY_STATE_LABELS[point.state]}</span>{point.asOf && <time dateTime={point.asOf} aria-label={`截至 ${historyTime(point.asOf)}`}>{historyTime(point.asOf)}</time>}</div>
+        <div className="asset-history-counts">{([['total', '总数'], ['inventory', '库存'], ['operating', '运营']] as const).map(([key, label]) => <div key={key}><span aria-label={`${label}（台）`}>{label}（台）</span><strong>{displayHistoryCounts(point)?.[key]?.toLocaleString() ?? (point.reconstruction && key === 'total' ? '待核实' : '—')}</strong></div>)}</div>
+        {hasComparison ? <div className="asset-history-comparison"><span>{point.comparisonLabel}</span><div>{(['total', 'inventory', 'operating'] as const).map(key => {
+          const difference = displayHistoryDifference(point, key);
+          return <span key={key} className={difference != null && difference > 0 ? 'asset-history-increase' : difference != null && difference < 0 ? 'asset-history-decrease' : ''}>{difference != null ? signedCount(difference) : '—'}</span>;
+        })}</div></div> : <p>{point.comparisonLabel}</p>}
+      </div>}
+      {point && mode === 'monthly' && <button type="button" className="asset-history-detail-button" disabled={!point.detailAvailable} onClick={() => setDetails(point)}><span>{point.reconstruction ? '查看月度回溯明细' : '查看月度明细'}</span><ChevronRight size={18} /></button>}
+      <p className="asset-history-footnote">历史库存状态快照缺失，核对中，暂不展示。</p>
+    </>}
+    {details && <HistoryDetailsDialog point={details} subject={subject} close={closeDetails} />}
+  </section>;
+}
@@ -0,0 +1,66 @@
+import { useEffect, useRef, useState } from 'react';
+import { createPortal } from 'react-dom';
+import { X, Search, ChevronLeft, ChevronRight } from 'lucide-react';
+import { useDialogFocus } from '../components/useDialogFocus';
+import { HISTORY_STATE_LABELS, historyTime, type HistoryCategory, type HistoryDetails, type HistoryPoint } from '../../../shared/assets/history';
+import { fetchHistoryDetails } from './api';
+import { displayHistoryCounts } from './presentation';
+
+export function HistoryDetailsDialog({ point, subject, close }: { point: HistoryPoint; subject: string | null; close: () => void }) {
+  const ref = useRef<HTMLDivElement>(null);
+  const [category, setCategory] = useState<HistoryCategory>('all');
+  const [search, setSearch] = useState('');
+  const [query, setQuery] = useState('');
+  const [page, setPage] = useState(1);
+  const [data, setData] = useState<HistoryDetails | null>(null);
+  const [error, setError] = useState('');
+  const [loading, setLoading] = useState(true);
+  const [retry, setRetry] = useState(0);
+  useDialogFocus(true, ref, close);
+  useEffect(() => {
+    const timer = setTimeout(() => { setQuery(search.trim()); setPage(1); }, 250);
+    return () => clearTimeout(timer);
+  }, [search]);
+  useEffect(() => {
+    const abort = new AbortController();
+    setLoading(true); setError(''); setData(null);
+    fetchHistoryDetails(point.month, point.batchId, subject, category, query, page, abort.signal)
+      .then(result => { if (!abort.signal.aborted) setData(result); })
+      .catch(e => { if (!abort.signal.aborted) setError(e instanceof Error ? e.message : '明细加载失败'); })
+      .finally(() => { if (!abort.signal.aborted) setLoading(false); });
+    return () => abort.abort();
+  }, [point.month, point.batchId, subject, category, query, page, retry]);
+  const pages = data ? Math.max(1, Math.ceil(data.total / data.pageSize)) : 1;
+  return createPortal(<div className="asset-history-overlay" onMouseDown={e => { if (e.target === e.currentTarget) close(); }}>
+    <div className="asset-history-dialog" role="dialog" aria-modal="true" aria-labelledby="asset-history-detail-title" tabIndex={-1} ref={ref}>
+      <header><div><h2 id="asset-history-detail-title">{point.month.replace('-', '年')}月资产明细</h2>
+        <p>{subject || '全部公司'} · {HISTORY_STATE_LABELS[point.state]} · {point.reconstruction ? '参考时点' : point.state === 'ARCHIVED' ? '快照' : '截至'} {historyTime(point.reconstruction ? point.scheduledFor : data?.point.asOf || point.asOf)}</p></div>
+        <button type="button" onClick={close} aria-label="关闭月度明细"><X size={20} /></button></header>
+      <div className="asset-history-detail-tools">
+        <label>车辆分类<select aria-label="月度明细分类" value={category} onChange={e => { setCategory(e.target.value as HistoryCategory); setPage(1); }}>
+          <option value="all">{point.reconstruction ? '全部推算车辆' : '全部资产'}</option><option value="operating">运营车辆</option><option value="inventory">库存车辆</option></select></label>
+        <label className="asset-history-search"><Search size={16} /><input aria-label="搜索历史车牌或VIN" placeholder="搜索车牌 / VIN" value={search} onChange={e => setSearch(e.target.value)} /></label>
+      </div>
+      <div className="asset-history-detail-body" aria-busy={loading} aria-live="polite">
+        {loading ? <p className="asset-history-empty">正在加载月度明细…</p> : error ? <p className="asset-history-empty" role="alert">{error} <button type="button" onClick={() => setRetry(x => x + 1)}>重试</button></p> : data && <>
+          <p className="asset-history-detail-note">{data.point.reconstruction ? '以下为核对表中的交还记录推算车辆，归属未知项留空。历史总数待核实，不能将两类相加当作历史资产总数。' : data.point.state === 'ARCHIVED' ? '以下为当时归档的车辆及归属信息。' : '以下为最新实时明细，数量可能随业务更新。'} 当前范围：总数 {displayHistoryCounts(data.point)?.total ?? '待核实'} · 运营 {displayHistoryCounts(data.point)?.operating} · 库存 {displayHistoryCounts(data.point)?.inventory}</p>
+          {data.items.length ? <><div className="asset-history-detail-table"><table><thead><tr><th>车辆</th><th>分类</th><th>公司 / 部门</th><th>负责人 / 客户</th></tr></thead>
+            <tbody>{data.items.map(item => <tr key={item.id}><td><strong>{item.plateNumber || '未登记车牌'}</strong><small>{item.model}</small><small>VIN：{item.vin || '未提供'}</small>{item.reconstructionBasis && <small>推算依据：{item.reconstructionBasis}</small>}</td>
+              <td>{item.disposition === 'operating' ? '运营' : '库存'}</td><td>{item.subjectOrg || '未提供'}<small>{item.departmentName || (item.reconstructionBasis ? '历史未提供' : '未分配部门')}</small></td>
+              <td>{item.customerManager || (item.reconstructionBasis ? '历史未提供' : '未分配')}<small>{item.customerName || (item.reconstructionBasis ? '历史未提供' : '无客户信息')}</small><small>{item.contractNo || ''}</small></td></tr>)}</tbody></table></div>
+            <div className="asset-history-mobile-vehicles">{data.items.map(item => <article key={item.id}>
+              <div className="asset-history-mobile-vehicle-heading"><strong>{item.plateNumber || '未登记车牌'}</strong><span>{item.disposition === 'operating' ? '运营' : '库存'}</span></div>
+              <p>{item.model}</p><small>VIN：{item.vin || '未提供'}</small>
+              {item.reconstructionBasis && <small>推算依据：{item.reconstructionBasis}</small>}
+              <dl><div><dt>公司 / 部门</dt><dd>{item.subjectOrg || '未提供'}<small>{item.departmentName || (item.reconstructionBasis ? '历史未提供' : '未分配部门')}</small></dd></div>
+                <div><dt>负责人 / 客户</dt><dd>{item.customerManager || (item.reconstructionBasis ? '历史未提供' : '未分配')}<small>{item.customerName || (item.reconstructionBasis ? '历史未提供' : '无客户信息')}</small></dd></div></dl>
+              {item.contractNo && <small>合同：{item.contractNo}</small>}
+            </article>)}</div></> : <p className="asset-history-empty">当前条件下没有车辆</p>}
+        </>}
+      </div>
+      <footer><span>{data ? `${point.reconstruction ? '推算' : '筛选'}结果 ${data.total} 台 · 第 ${page} / ${pages} 页` : '每页 30 台'}</span><div>
+        <button type="button" aria-label="上一页" disabled={loading || !data || page <= 1} onClick={() => setPage(x => x - 1)}><ChevronLeft size={16} /></button>
+        <button type="button" aria-label="下一页" disabled={loading || !data || page >= pages} onClick={() => setPage(x => x + 1)}><ChevronRight size={16} /></button></div></footer>
+    </div>
+  </div>, document.body);
+}
@@ -0,0 +1,31 @@
+import { Select } from 'radix-ui';
+import { Check, ChevronDown, ChevronUp } from 'lucide-react';
+
+interface HistorySelectProps {
+  label: string;
+  value: string;
+  options: { value: string; label: string; detail?: string }[];
+  onChange: (value: string) => void;
+}
+
+export function HistorySelect({ label, value, options, onChange }: HistorySelectProps) {
+  return <Select.Root value={value} onValueChange={onChange}>
+    <Select.Trigger className="asset-history-select" aria-label={label}>
+      <Select.Value />
+      <Select.Icon className="asset-history-select-icon"><ChevronDown size={14} /></Select.Icon>
+    </Select.Trigger>
+    <Select.Portal>
+      <Select.Content className="asset-history-select-menu" position="popper" align="start" sideOffset={6} collisionPadding={10}>
+        <Select.ScrollUpButton className="asset-history-select-scroll"><ChevronUp size={14} /></Select.ScrollUpButton>
+        <Select.Viewport className="asset-history-select-options">
+          {options.map(option => <Select.Item className="asset-history-select-option" key={option.value} value={option.value} textValue={option.label}>
+            <Select.ItemText>{option.label}</Select.ItemText>
+            {option.detail && <span className="asset-history-option-detail">{option.detail}</span>}
+            <Select.ItemIndicator className="asset-history-option-check"><Check size={14} /></Select.ItemIndicator>
+          </Select.Item>)}
+        </Select.Viewport>
+        <Select.ScrollDownButton className="asset-history-select-scroll"><ChevronDown size={14} /></Select.ScrollDownButton>
+      </Select.Content>
+    </Select.Portal>
+  </Select.Root>;
+}
@@ -0,0 +1,20 @@
+import { fetchAuthenticated } from '../../../auth/api-client';
+import type { HistoryMode, HistoryTrend, HistoryPoint, HistoryDetails, HistoryCategory } from '../../../shared/assets/history';
+
+async function get<T>(path: string, params: Record<string, string | number | null | undefined>, signal: AbortSignal): Promise<T> {
+  const query = new URLSearchParams();
+  for (const [key, value] of Object.entries(params)) if (value != null && value !== '') query.set(key, String(value));
+  const response = await fetchAuthenticated(`/api/asset-history/${path}?${query}`, { signal });
+  const body = await response.json();
+  if (!response.ok) throw new Error(body.error || '历史趋势加载失败，请重试');
+  return body as T;
+}
+export function fetchHistoryTrend(mode: HistoryMode, year: number, subject: string | null, signal: AbortSignal) {
+  return get<HistoryTrend>('trend', { mode, year, subject }, signal);
+}
+export function fetchHistoryLive(mode: HistoryMode, subject: string | null, signal: AbortSignal) {
+  return get<HistoryPoint>('live', { mode, subject }, signal);
+}
+export function fetchHistoryDetails(month: string, batchId: string | null, subject: string | null, category: HistoryCategory, search: string, page: number, signal: AbortSignal) {
+  return get<HistoryDetails>('details', { month, batchId, subject, category, search, page, pageSize: 30 }, signal);
+}
@@ -0,0 +1,131 @@
+.asset-history { --history-blue:#1559e8; margin:8px 0 16px; padding:16px; border:1px solid #e6edf5; border-radius:20px; background:#fff; color:#142b4e; box-shadow:0 5px 24px rgb(22 53 90 / 3%); }
+.asset-history button,.asset-history-dialog button { cursor:pointer; }
+.asset-history button:disabled,.asset-history-dialog button:disabled { cursor:default; opacity:.45; }
+.asset-history button:focus-visible,.asset-history select:focus-visible,.asset-history-dialog :is(button,input,select):focus-visible { outline:2px solid #2563eb; outline-offset:3px; }
+.asset-history-header { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; }
+.asset-history-header h2 { margin:0; font-size:20px; font-weight:750; letter-spacing:-.5px; }
+.asset-history-modes { display:flex; gap:2px; background:#eef3fa; border:1px solid #e7edf6; border-radius:11px; padding:3px; }
+.asset-history-modes button { padding:7px 20px; min-height:34px; border-radius:8px; font-size:13px; font-weight:600; transition:background .15s,color .15s,box-shadow .15s; color:#64748b; }
+.asset-history-modes button[aria-pressed=true] { background:#fff; color:#1559e8; box-shadow:0 1px 4px #193c6920, inset 0 0 0 1px #dce7f5; }
+.asset-history-toolbar { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin:8px 0 4px; font-size:12px; color:#64748b; }
+.asset-history-toolbar>span { margin-left:auto; }
+.asset-history-toolbar .asset-history-annual-note { margin-left:0; margin-right:auto; }
+.asset-history-refresh { display:grid; place-items:center; padding:8px; border-radius:8px; color:#7c8da5; transition:background .15s,color .15s; }
+.asset-history-warning { margin:8px 0; font-size:12px; line-height:1.7; color:#74613a; background:#fff9ec; padding:9px 12px; border-radius:9px; }
+.asset-history-warning button,.asset-history-empty button { color:#1559e8; text-decoration:underline; padding:6px; }
+.asset-history-unit { font-size:12px; color:#64748b; margin:6px 0 0; }
+.asset-history-chart { height:200px; width:100%; min-width:0; }
+.asset-history-tooltip { background:#fff; border:1px solid #dce5ef; border-radius:10px; padding:10px 12px; box-shadow:0 4px 16px #142b4e15; font-size:12px; }
+.asset-history-tooltip p { margin-top:4px; }
+.asset-history-legend { display:flex; justify-content:center; flex-wrap:wrap; gap:22px; color:#64748b; font-size:12px; margin:6px 0; }
+.asset-history-legend span { display:flex; align-items:center; gap:7px; }
+.asset-history-legend i { display:inline-block; height:11px; width:11px; border-radius:2px; }
+.asset-history-legend .operating { background:#347df5; }.asset-history-legend .inventory { background:#9ed1fa; }
+.asset-history-legend .total { width:20px; height:2px; background:#132e57; }
+.asset-history-selected { margin-top:8px; display:grid; grid-template-columns:90px minmax(0,1fr); align-items:center; gap:0 10px; padding:10px 14px; background:linear-gradient(115deg,#f3f7fe,#edf5ff); border:1px solid #e7effb; border-radius:12px; }
+.asset-history-selected-heading { display:flex; flex-direction:column; align-items:flex-start; gap:3px; min-width:0; }
+.asset-history-selected-heading>strong { color:#1559e8; font-size:17px; font-weight:750; }
+.asset-history-selected-heading>span,.asset-history-selected-heading>time { color:#64748b; font-size:11px; }
+.asset-history-counts { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); }
+.asset-history-counts>div { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px; min-width:0; border-right:1px solid #d4e2f4; }
+.asset-history-counts>div:last-child { border:0; }
+.asset-history-counts>div>span { color:#64748b; font-size:12px; }
+.asset-history-counts strong { font-size:23px; font-weight:750; line-height:1.2; font-variant-numeric:tabular-nums; }
+.asset-history-increase { color:#bf2f30; }.asset-history-decrease { color:#14864a; }
+.asset-history-selected>p { grid-column:1 / -1; color:#64748b; font-size:11px; text-align:center; padding-top:6px; }
+.asset-history-detail-button { display:flex; width:100%; align-items:center; justify-content:space-between; min-height:44px; padding:8px 12px; margin-top:8px; border:1px solid #dce8f8; border-radius:10px; background:#f7faff; color:#18385d; font-size:14px; font-weight:600; }
+.asset-history-footnote { display:flex; align-items:center; flex-wrap:wrap; gap:6px; color:#64748b; font-size:11px; margin-top:8px; }
+.asset-history-empty { padding:32px 12px; text-align:center; font-size:13px; color:#64748b; }
+.asset-history-overlay { position:fixed; inset:0; z-index:120; background:#0c1e3b66; display:flex; justify-content:center; align-items:center; padding:24px; }
+.asset-history-dialog { display:flex; flex-direction:column; width:min(980px,100%); max-height:88dvh; border-radius:18px; background:white; color:#183454; box-shadow:0 24px 64px #142b4e30; overflow:hidden; outline:none; }
+.asset-history-dialog>header { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; padding:20px 22px; border-bottom:1px solid #e6edf5; }
+.asset-history-dialog h2 { font-size:18px; font-weight:700; }
+.asset-history-dialog header p { font-size:12px; line-height:1.7; margin-top:5px; color:#64748b; }
+.asset-history-dialog header button { padding:8px; flex-shrink:0; }
+.asset-history-detail-tools { display:flex; flex-wrap:wrap; gap:12px; padding:14px 22px; border-bottom:1px solid #e6edf5; }
+.asset-history-detail-tools label { display:flex; align-items:center; gap:8px; font-size:12px; color:#64748b; }
+.asset-history-detail-tools select { border:1px solid #dce5f0; border-radius:7px; padding:8px; color:#183454; background:white; }
+.asset-history-search { border:1px solid #dce5f0; border-radius:7px; padding:6px 10px; flex:1; min-width:170px; }
+.asset-history-search input { width:100%; min-width:0; padding:3px 0; outline:none; color:#183454; }
+.asset-history-detail-body { overflow:auto; flex:1; min-height:100px; }
+.asset-history-detail-note { font-size:12px; line-height:1.8; padding:12px 22px; color:#64748b; background:#f8fbff; }
+.asset-history-detail-table { overflow:auto; }
+.asset-history-detail-table table { width:100%; border-collapse:collapse; min-width:650px; font-size:12px; }
+.asset-history-detail-table th { text-align:left; background:#f7faff; color:#64748b; font-weight:500; padding:12px 20px; }
+.asset-history-detail-table td { vertical-align:top; padding:14px 20px; border-bottom:1px solid #edf2f8; max-width:280px; overflow-wrap:anywhere; }
+.asset-history-detail-table td strong { font-size:13px; font-weight:650; }.asset-history-detail-table small { display:block; font-size:11px; color:#64748b; margin-top:5px; }
+.asset-history-mobile-vehicles { display:none; }
+.asset-history-dialog footer { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 22px; border-top:1px solid #e6edf5; color:#64748b; font-size:12px; }
+.asset-history-dialog footer>div { display:flex; gap:8px; }.asset-history-dialog footer button { padding:9px; border:1px solid #dce5f0; border-radius:7px; }
+@media(max-width:640px) {
+  .asset-history { padding:12px; border-radius:16px; }
+  .asset-history-header h2 { font-size:18px; }.asset-history-modes button { padding:7px 15px; min-height:38px; }
+  .asset-history-toolbar { gap:6px; }.asset-history-toolbar>span { font-size:10px; }
+  .asset-history-chart { height:170px; }
+  .asset-history-selected { grid-template-columns:72px minmax(0,1fr); gap:0 6px; padding:8px 10px; }.asset-history-selected-heading { gap:2px; }.asset-history-selected-heading>span,.asset-history-selected-heading>time { font-size:10px; }
+  .asset-history-counts strong { font-size:21px; }.asset-history-counts>div>span { font-size:11px; }
+  .asset-history-overlay { padding:10px; }.asset-history-dialog { max-height:94dvh; border-radius:14px; }
+  .asset-history-dialog>header { padding:14px; }.asset-history-dialog h2 { font-size:16px; }.asset-history-detail-tools { padding:12px 14px; }
+  .asset-history-detail-note { padding:10px 14px; }.asset-history-dialog :is(input,select) { font-size:16px; }.asset-history-dialog footer { padding:12px 14px; }
+  .asset-history-dialog :is(header,footer) button { min-height:44px; min-width:44px; }
+  .asset-history-detail-table { display:none; }
+  .asset-history-mobile-vehicles { display:block; padding:0 14px; }
+  .asset-history-mobile-vehicles article { padding:16px 0; border-bottom:1px solid #e6edf5; overflow-wrap:anywhere; }
+  .asset-history-mobile-vehicle-heading { display:flex; justify-content:space-between; align-items:center; gap:10px; }
+  .asset-history-mobile-vehicle-heading strong { font-size:14px; font-weight:700; }.asset-history-mobile-vehicle-heading span { font-size:11px; color:#1559e8; background:#edf5ff; border-radius:5px; padding:3px 8px; }
+  .asset-history-mobile-vehicles p { margin-top:6px; font-size:12px; color:#475569; }.asset-history-mobile-vehicles small { display:block; font-size:11px; color:#64748b; margin-top:5px; }
+  .asset-history-mobile-vehicles dl { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:12px 0; font-size:12px; }
+  .asset-history-mobile-vehicles dt { font-size:11px; color:#64748b; margin-bottom:5px; }.asset-history-mobile-vehicles dd { margin:0; }
+}
+
+@media(min-width:900px) {
+  .asset-history-controls { display:flex; align-items:center; flex-wrap:wrap; gap:8px 24px; }
+  .asset-history-header { flex:1; gap:16px; }
+  .asset-history-toolbar { margin:0; }
+  .asset-history-selected { display:grid; grid-template-columns:minmax(150px,1fr) 3fr; align-items:center; gap:0 18px; }
+  .asset-history-selected-heading { display:grid; grid-template-columns:auto 1fr; align-items:center; gap:2px 12px; margin:0; }
+  .asset-history-selected-heading>strong { grid-row:span 2; }
+  .asset-history-selected-heading>span,.asset-history-selected-heading>time { grid-column:2; }
+  .asset-history-selected>p { grid-column:1 / -1; }
+}
+@media(max-width:640px) {
+  .asset-history-modes button,.asset-history-refresh { min-height:44px; }
+  .asset-history-refresh { min-width:44px; }
+  .asset-history-toolbar { gap:4px; }
+}
+
+.asset-history-comparison { grid-column:1 / -1; display:grid; grid-template-columns:90px minmax(0,1fr); gap:10px; align-items:center; margin-top:6px; padding-top:6px; border-top:1px solid #d4e2f4; font-size:11px; color:#64748b; }
+.asset-history-comparison>div { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); text-align:center; font-size:13px; font-weight:600; }
+@media(min-width:900px) {
+  .asset-history-comparison { grid-template-columns:minmax(150px,1fr) 3fr; gap:18px; }
+}
+@media(max-width:640px) {
+  .asset-history-comparison { grid-template-columns:72px minmax(0,1fr); gap:6px; }
+}
+
+.asset-history-select { display:inline-flex; align-items:center; justify-content:space-between; gap:12px; min-width:76px; min-height:36px; padding:7px 11px; border:1px solid #dce5f1; border-radius:9px; background:#fff; color:#254365; font-size:13px; font-weight:550; box-shadow:0 1px 2px #173c6310; transition:border-color .15s,box-shadow .15s; }
+.asset-history-select[data-state=open] { border-color:#8fb4f2; box-shadow:0 0 0 3px #dbeaff80; }
+.asset-history-select-icon { color:#8b9db5; display:flex; transition:transform .15s; }
+.asset-history-select[data-state=open] .asset-history-select-icon { transform:rotate(180deg); }
+.asset-history-select-menu { z-index:160; min-width:max(132px,var(--radix-select-trigger-width)); max-height:min(320px,var(--radix-select-content-available-height)); max-width:calc(100vw - 20px); overflow:hidden; padding:4px; border:1px solid #e0e8f4; border-radius:12px; background:#fff; color:#254365; box-shadow:0 12px 32px #18365420,0 2px 6px #18365408; }
+.asset-history-select-options { padding:2px; }
+.asset-history-select-option { position:relative; display:flex; align-items:center; gap:16px; min-height:36px; padding:8px 30px 8px 10px; border-radius:7px; outline:none; font-size:13px; cursor:pointer; user-select:none; }
+.asset-history-select-option[data-state=checked] { color:#1559e8; background:#f0f6ff; font-weight:600; }
+.asset-history-select-option[data-highlighted] { background:#eaf2ff; color:#1559e8; }
+.asset-history-option-detail { margin-left:auto; color:#7b8da5; font-size:11px; font-weight:400; }
+.asset-history-option-check { position:absolute; right:9px; display:flex; color:#2563eb; }
+.asset-history-select-scroll { display:flex; align-items:center; justify-content:center; height:24px; color:#7b8da5; }
+.asset-history-detail-button>svg { padding:3px; width:24px; height:24px; border-radius:7px; background:#eaf2ff; color:#527eb7; }
+@media(hover:hover) {
+  .asset-history-modes button:not([aria-pressed=true]):hover { color:#1559e8; background:#e5edf9; }
+  .asset-history-select:hover { border-color:#adc5e8; }
+  .asset-history-refresh:hover { color:#2563eb; background:#eef5ff; }
+  .asset-history-detail-button:hover { background:#eef5ff; border-color:#bcd3f3; }
+}
+@media(max-width:640px) {
+  .asset-history-select { min-height:44px; padding:8px 10px; font-size:12px; gap:10px; }
+  .asset-history-select-option { min-height:44px; }
+}
+@media(prefers-reduced-motion:reduce) {
+  .asset-history-modes button,.asset-history-select,.asset-history-select-icon,.asset-history-refresh { transition:none; }
+}
@@ -0,0 +1,37 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { defaultHistoryPeriod, displayHistoryCounts, displayHistoryDifference, signedCount, updateLivePoint } from './presentation.js';
+import { makePoint } from '../../../server/routes/asset-history/model.js';
+import { testBatch } from '../../../server/routes/asset-history/fixtures.js';
+
+test('selection prefers live then latest archive; missing is never a numerical zero',()=>{
+  const now=new Date('2026-10-19T00:00Z');
+  const archived=makePoint('2026-09',now,testBatch('2026-09'),[]);
+  const live=makePoint('2026-10',now);const missing=makePoint('2026-08',now);
+  assert.equal(defaultHistoryPeriod([missing,archived,live]),'2026-10');
+  assert.equal(defaultHistoryPeriod([missing,archived]),'2026-09');
+  assert.equal(archived.counts!.total,0);assert.equal(missing.counts,null);
+  assert.equal(signedCount(3),'+3');assert.equal(signedCount(-3),'-3');
+});
+test('estimated counts keep total unknown and live refresh cannot compare against a reconstructed cohort',()=>{
+  const now=new Date('2026-10-19T00:00Z');
+  const estimate={...makePoint('2026-09',now),state:'RECONSTRUCTED' as const,source:'RECONSTRUCTED' as const,
+    reconstruction:{operating:3,inventory:0,unclassified:2,currentlyExited:1,sourceAsOf:'2026-10-19T14:38:33+08:00',sourceReference:'核对表',workbookSha256:'a'.repeat(64),difference:{operating:1,inventory:-1}}};
+  assert.deepEqual(displayHistoryCounts(estimate),{total:null,operating:3,inventory:0});assert.equal(displayHistoryDifference(estimate,'total'),null);
+  assert.equal(displayHistoryDifference(estimate,'inventory'),-1);assert.equal(defaultHistoryPeriod([estimate]),'2026-09');
+  const live=makePoint('2026-10',now);live.counts={total:5,operating:2,inventory:3};
+  assert.equal(updateLivePoint([estimate,live],live)[1].difference,null);
+});
+test('live refresh preserves January comparison with December outside visible year',()=>{
+  const now=new Date('2026-01-19T00:00Z');const initial=makePoint('2026-01',now);
+  initial.counts={total:10,operating:6,inventory:4};initial.difference={total:2,operating:1,inventory:1};
+  const refreshed={...initial,counts:{total:12,operating:7,inventory:5},difference:null};
+  const result=updateLivePoint([initial],refreshed)[0];
+  assert.deepEqual(result.difference,{total:4,operating:2,inventory:2});assert.equal(result.comparisonLabel,'截至当前较上月末');
+});
+test('live refresh cannot mutate an archive, bridge a hole or overwrite a different period',()=>{
+  const now=new Date('2026-10-19T00:00Z');const archive=makePoint('2026-09',now,testBatch('2026-09'),[]);
+  const live=makePoint('2026-10',now);const missing=makePoint('2026-08',now);
+  assert.equal(updateLivePoint([archive],live)[0],archive);
+  assert.equal(updateLivePoint([missing,live],{...live,counts:{total:9,operating:4,inventory:5}})[1].difference,null);
+});
@@ -0,0 +1,29 @@
+import type { HistoryPoint } from '../../../shared/assets/history';
+
+/** Accessible period buttons and chart clicks share one selection model. */
+export function defaultHistoryPeriod(points: HistoryPoint[]): string | null {
+  return points.find(p => p.state === 'LIVE')?.period || [...points].reverse().find(p => p.state === 'ARCHIVED' || p.state === 'RECONSTRUCTED')?.period || points.at(-1)?.period || null;
+}
+export function updateLivePoint(points: HistoryPoint[], live: HistoryPoint): HistoryPoint[] {
+  return points.map((point, index) => {
+    if (point.state !== 'LIVE' || point.period !== live.period) return point;
+    if (points[index - 1]?.state === 'RECONSTRUCTED') return { ...live, difference: null, comparisonLabel: '推算与实时或正式快照口径不同，暂无可比数据' };
+    const baseline = points[index - 1]?.counts || (point.counts && point.difference ? {
+      total: point.counts.total - point.difference.total,
+      operating: point.counts.operating - point.difference.operating,
+      inventory: point.counts.inventory - point.difference.inventory,
+    } : null);
+    return { ...live, difference: baseline && live.counts ? {
+      total: live.counts.total - baseline.total,
+      operating: live.counts.operating - baseline.operating,
+      inventory: live.counts.inventory - baseline.inventory,
+    } : null, comparisonLabel: baseline ? `截至当前较${live.period.length === 4 ? '上年末' : '上月末'}` : '暂无可比数据' };
+  });
+}
+export const signedCount = (value: number) => value > 0 ? `+${value.toLocaleString()}` : value.toLocaleString();
+export function displayHistoryCounts(point: HistoryPoint) {
+  return point.reconstruction ? { total: null, operating: point.reconstruction.operating, inventory: point.reconstruction.inventory } : point.counts;
+}
+export function displayHistoryDifference(point: HistoryPoint, key: 'total' | 'operating' | 'inventory'): number | null {
+  return point.reconstruction ? key === 'total' ? null : point.reconstruction.difference?.[key] ?? null : point.difference?.[key] ?? null;
+}
@@ -28,6 +28,7 @@ export default function HydrogenDaily() {
  useEffect(() => {
    let cancelled = false;
    setError(null);
+    setRows(null);
    const query = pick === 'custom'
      ? { startDate: effectiveRange.start, endDate: effectiveRange.end }
      : { range: pick };
@@ -81,34 +82,13 @@ export default function HydrogenDaily() {

      <div className="grid grid-cols-2 gap-3 md:grid-cols-4">
        <MetricTile icon={Fuel} label={`${scopeLabel}加氢量`} value={totalKg.toLocaleString('zh-CN', { maximumFractionDigits: 1 })} unit="Kg" helper={rangeText} />
-        <MetricTile icon={Truck} label="车辆归属" value={customer === 'external' ? '外部' : '羚牛'} helper="当前筛选口径" tone="emerald" />
+        <MetricTile icon={Truck} label="车辆归属" value={customer === 'external' ? '外部' : '羚牛'} helper={customer === 'external' ? '佛山南海羚牛加氢站 · 未关联车辆的订单' : '当前筛选口径'} tone="emerald" />
        <MetricTile icon={TrendingUp} label="有效天数" value={`${activeDays}/${rows?.length ?? 0}`} helper={`日均 ${avgKg.toLocaleString('zh-CN', { maximumFractionDigits: 1 })} Kg`} tone="amber" />
        <MetricTile icon={Plug} label="涉及加氢站" value={stationCount} unit="站" helper="按明细站点去重" tone="slate" />
      </div>

-      {/* 外部车辆：新系统数据还没准备好 */}
-      {customer === 'external' && rows !== null && totalKg === 0 && (
-        <motion.div
-          initial={{ opacity: 0, y: 8 }}
-          animate={{ opacity: 1, y: 0 }}
-          className="bg-white rounded-2xl border border-slate-100 shadow-sm px-6 py-14 flex flex-col items-center text-center"
-        >
-          <div className="w-14 h-14 rounded-2xl bg-blue-50 flex items-center justify-center mb-3 relative">
-            <Plug size={22} className="text-blue-500" />
-            <span className="absolute -top-0.5 -right-0.5 w-3 h-3 rounded-full bg-blue-400 animate-ping" />
-            <span className="absolute -top-0.5 -right-0.5 w-3 h-3 rounded-full bg-blue-500" />
-          </div>
-          <div className="text-sm font-bold text-slate-700 mb-1">外部车辆 · 数据未就绪</div>
-          <div className="text-[11px] text-slate-400 max-w-[280px] leading-relaxed">
-            新系统的外部车辆加氢数据还在准备中
-            <br />
-            上线后此处将展示完整明细
-          </div>
-        </motion.div>
-      )}
-
-      {/* 时段加氢量柱图（外部车辆无数据时不渲染） */}
-      {!(customer === 'external' && totalKg === 0) && trendData.length > 0 && (
+      {/* 时段加氢量柱图 */}
+      {!error && trendData.length > 0 && totalKg > 0 && (
        <SurfaceCard>
          <div className="flex items-center justify-between px-4 pt-4 mb-2">
            <span className="text-sm font-bold text-slate-700">每日加氢量</span>
@@ -184,8 +164,7 @@ export default function HydrogenDaily() {
        </SurfaceCard>
      )}

-      {/* 表格（外部车辆 + 全 0 时不渲染，由上方友好空状态替代） */}
-      {!(customer === 'external' && rows !== null && totalKg === 0) && (
+      {/* 日明细：加载失败、无订单与正常数据分别展示。 */}
      <div className="bg-white rounded-2xl border border-slate-100 shadow-sm overflow-hidden">
        {/* 表头 */}
        <div className="grid grid-cols-[minmax(0,1fr)_84px_80px] md:grid-cols-[minmax(0,1fr)_140px_120px_104px] gap-2 md:gap-3 px-3 py-2 bg-slate-50 text-[11px] font-bold text-slate-500">
@@ -206,8 +185,8 @@ export default function HydrogenDaily() {
          <div className="p-3"><ErrorState message={error} /></div>
        ) : rows === null ? (
          <div className="p-3"><LoadingState label="正在加载加氢明细" /></div>
-        ) : rows.length === 0 ? (
-          <div className="p-3"><EmptyState title="暂无加氢数据" description="请切换时间范围或车辆归属" /></div>
+        ) : rows.length === 0 || totalKg === 0 ? (
+          <div className="p-3"><EmptyState title="所选时段暂无加氢数据" description={customer === 'external' ? '佛山南海羚牛加氢站在该时段没有未关联车辆的加氢订单，请切换时间范围' : '请切换时间范围或车辆归属'} /></div>
        ) : rows.map(r => {
          const open = expanded.has(r.date);
          const isAbnormal = Math.abs(r.chainPct) >= 0.3;
@@ -270,7 +249,6 @@ export default function HydrogenDaily() {
          );
        })}
      </div>
-      )}

    </div>
  );
@@ -14,6 +14,7 @@ import vehicleHeatmapRouter from './routes/vehicle-heatmap.js';
 import vehiclesRouter from './routes/vehicles.js';
 import assetAssistantRouter from './routes/asset-assistant/index.js';
 import assetFaultRouter from './routes/asset-faults/index.js';
+import assetHistoryRouter from './routes/asset-history/index.js';

 /**
 * 创建 HTTP 应用，但不监听端口、不访问数据库，也不启动后台任务。
@@ -31,6 +32,7 @@ export function createApp(): Hono {
  app.use('/api/*', createPreviewMiddleware());

  app.route('/api/vehicles', vehiclesRouter);
+  app.route('/api/asset-history', assetHistoryRouter);
  app.route('/api/asset-faults', assetFaultRouter);
  app.route('/api/asset-assistant', assetAssistantRouter);
  app.route('/api/mileage', mileageRouter);
@@ -3,7 +3,7 @@ import type { Vehicle } from '../types.js';
 import { isInventoryVehicle } from '../routes/vehicles/model.js';

 /** 当前库存为公共资产；非库存车辆继续遵守本人/部门权限。历史业务使用原权限过滤。 */
-export function filterAssetVehiclesByPermission(items: Vehicle[], user: AuthUser): Vehicle[] {
+export function filterAssetVehiclesByPermission<T extends Vehicle>(items: T[], user: AuthUser): T[] {
  if (user.permissionLevel === 'full') return items;
  const authorized = new Set(filterByPermission(items, user));
  return items.filter(vehicle => isInventoryVehicle(vehicle) || authorized.has(vehicle));
@@ -43,7 +43,7 @@ export function createPreviewRouter(service: Service = previewService) {
  return router;
 }

-// These POSTs only query data (AI previews suppress gap recording). Everything else is denied by default.
+// These POSTs do not change business data. AI previews suppress gap feedback but retain attributed question audit records.
 const READ_POSTS = new Set(['/api/vehicles/analysis', '/api/vehicles/analysis/details', '/api/asset-assistant/ask', '/api/asset-assistant/export']);
 export function createPreviewMiddleware(service: Service = previewService) {
  return async (c: Context, next: Next) => {
@@ -1,5 +1,6 @@
 import { ensureSchedulingTables } from './routes/scheduling/db-schema.js';
 import { startMileageBackgroundJobs } from './routes/mileage/index.js';
+import { startAssetHistoryScheduler } from './routes/asset-history/runtime.js';

 /** 启动只应在服务进程中运行的数据库准备和定时任务。 */
 export function startBackgroundServices(): void {
@@ -7,4 +8,5 @@ export function startBackgroundServices(): void {
    console.error('scheduling bootstrap error:', error);
  });
  startMileageBackgroundJobs();
+  startAssetHistoryScheduler();
 }
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test from "node:test";
 import { Hono } from "hono";
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test, { type TestContext } from "node:test";
 import { Hono } from "hono";
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test, { type TestContext } from "node:test";
 import { Hono } from "hono";
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test, { type TestContext } from "node:test";
 import { Hono } from "hono";
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test, { type TestContext } from "node:test";
 import { Hono } from "hono";
@@ -21,6 +21,7 @@ import {
 } from "./session.js";
 import { resultScope, followupSuggestions } from "./presentation.js";
 import { gapStore } from "./gaps.js";
+import { questionLog, questionOutcome, finishQuestionLog } from "./question-log.js";
 import {
  CATEGORY_LABELS,
  GAP_STATUSES,
@@ -99,6 +100,10 @@ router.post("/feedback", async (c) => {
    const session = getSession(c.get("user"), body.subject, body.sessionId),
      node = getNode(session, body.resultId)!;
    if (!node.flagged) {
+      const logId = await questionLog.start(c.get("user"), { message: node.question || node.demand,
+        subject: body.subject, sessionId: session.id, baseResultId: node.id }, "feedback");
+      const saved = await finishQuestionLog(logId, { outcome: "feedback", reason: "unsatisfied", resultId: node.id });
+      if (!saved) return c.json({ error: "反馈已接收，处理状态暂未保存，请稍后重试。" }, 503);
      await gapStore.record(c.get("user").userId, node.demand, "unsatisfied");
      node.flagged = true;
    }
@@ -220,15 +225,24 @@ router.post("/ask", async (c) => {
  )
    return c.json({ error: "请输入有效问题或选择分析操作。" }, 400);
  const input: AssistantRequest = { ...raw, subject: raw.subject || null };
+  let logId: string;
+  try {
+    logId = await questionLog.start(user, input);
+  } catch {
+    return c.json({ error: "提问记录暂不可用，本次查询未执行，请稍后重试。" }, 503);
+  }
  const release = acquire(user.userId);
-  if (!release)
+  if (!release) {
+    await finishQuestionLog(logId, { outcome: "rejected", reason: "busy" });
    return c.json({ error: "上一条查询仍在执行，请稍后重试。" }, 429);
+  }
  let session, base;
  try {
    session = getSession(user, input.subject, input.sessionId);
    base = getNode(session, input.baseResultId);
  } catch {
    release();
+    await finishQuestionLog(logId, { outcome: "rejected", reason: "session_expired" });
    return c.json({ error: "会话已过期或范围已变化，请新建对话。" }, 409);
  }
  const currentSession = session,
@@ -238,6 +252,7 @@ router.post("/ask", async (c) => {
    stream.onAbort(() => controller.abort());
    const emit = (event: object) =>
      stream.writeSSE({ data: JSON.stringify(event) });
+    let logFinished = false;
    let demand = "查询执行",
      reason: GapReason | undefined;
    try {
@@ -516,8 +531,17 @@ router.post("/ask", async (c) => {
        type: "step",
        label: "分析完成",
      });
+      logFinished = true;
+      const saved = await finishQuestionLog(logId, { outcome: questionOutcome(result, gapReason),
+        reason: gapReason, sessionId: currentSession.id, result });
+      if (!saved) result.warning = [result.warning, "提问已记录，处理结果暂未保存。"].filter(Boolean).join(" ");
      await emit({ type: "result", result });
    } catch {
+      if (!logFinished) {
+        logFinished = true;
+        await finishQuestionLog(logId, { outcome: controller.signal.aborted ? "cancelled" : "failed",
+          reason: controller.signal.aborted ? "client_aborted" : "generation", sessionId: currentSession.id });
+      }
      if (!controller.signal.aborted) {
        let recorded = false;
        try {
@@ -534,6 +558,8 @@ router.post("/ask", async (c) => {
        });
      }
    } finally {
+      if (!logFinished) await finishQuestionLog(logId, { outcome: controller.signal.aborted ? "cancelled" : "failed",
+        reason: controller.signal.aborted ? "client_aborted" : "unfinished", sessionId: currentSession.id });
      release();
    }
  });
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test from "node:test";
 import { Hono } from "hono";
@@ -0,0 +1,160 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { Hono } from 'hono';
+import pool from '../../db.js';
+import router from './index.js';
+import { questionLog, questionOutcome, businessTypes, finishQuestionLog, redactQuestion, type QuestionCompletion } from './question-log.js';
+import { vehicleRepository } from '../vehicles/repository.js';
+import { gapStore } from './gaps.js';
+import { acquire } from './session.js';
+import type { AuthUser } from '../../auth/types.js';
+import type { AssistantResult } from '../../../shared/assets/assistant.js';
+
+const user: AuthUser = { userId: 'log-test', userName: '测试用户', loginName: 'test', roles: [], permissionLevel: 'personal', depCode: 'D', depName: '测试部门' };
+const result = (extra: Partial<AssistantResult> = {}): AssistantResult => ({
+  plan: { kind: 'assets', category: 'inventory', groupBy: 'region', view: 'table', filters: {} },
+  title: '库存', summary: '库存共 2 台', rows: [], groups: [], metrics: [], source: 'test', fetchedAt: '', ...extra,
+});
+function appFor(u = user) {
+  const app = new Hono<{ Variables: { user: AuthUser } }>();
+  app.use('*', async (c, next) => { c.set('user', u); await next(); });
+  app.route('/ai', router);
+  return app;
+}
+function ask(app: ReturnType<typeof appFor>, body: object = { message: '库存有多少车？', subject: null }) {
+  return app.request('/ai/ask', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) });
+}
+
+test('each question has its own durable ID, full text and attributed preview identity; SQL is parameterized', async t => {
+  const calls: { sql: string; values: unknown[] }[] = [];
+  t.mock.method(pool, 'query', async (options: { sql: string }, values: unknown[]) => { calls.push({ sql: options.sql, values }); return [{ affectedRows: 1 }, []]; });
+  const preview = { ...user, preview: { actorId: 'real-actor', sessionId: 'preview-session' } };
+  const message = '按区域统计库存'.repeat(100) + " ' OR 1=1 --";
+  const first = await questionLog.start(preview, { message, subject: '公司甲' });
+  const second = await questionLog.start(preview, { message, subject: '公司甲' });
+  assert.notEqual(first, second);
+  assert.equal(calls[0].values[1], 'real-actor');
+  assert.equal(calls[0].values[2], user.userId);
+  assert.equal(calls[0].values[6], 1);
+  assert.equal(calls[0].values[12], message);
+  assert.ok(!calls[0].sql.includes(message));
+  await questionLog.finish(first, { outcome: 'success', sessionId: 'session', result: result() });
+  assert.match(calls[2].sql, /outcome='processing'/);
+  assert.equal(calls[2].values[4], '["inventory"]');
+  assert.match(String(calls[2].values[6]), /库存共 2 台/);
+  assert.ok(!String(calls[2].values[6]).includes('rows'));
+});
+
+test('outcomes and business categories separate partial, help, empty, unsupported and failure', () => {
+  assert.equal(questionOutcome(result()), 'success');
+  for (const value of ['partial', 'empty', 'unsupported', 'help', 'clarification'] as const) {
+    const r = result({ outcome: value });
+    if (value === 'clarification') r.plan.kind = 'clarify';
+    assert.equal(questionOutcome(r), value);
+  }
+  assert.equal(questionOutcome(result(), 'generation'), 'failed');
+  assert.deepEqual(businessTypes(result({ sections: [
+    { id: 'a', title: '库存', question: '库存', display: 'table', result: result() },
+    { id: 'b', title: '交车', question: '交车', display: 'table', result: result({ plan: { ...result().plan, kind: 'flow' } }) },
+  ] })), ['inventory', 'flow']);
+  assert.equal(redactQuestion('库存 sk-12345678 password=secret123 Bearer token123'), '库存 [凭据已隐藏] password=[凭据已隐藏] Bearer [凭据已隐藏]');
+});
+
+test('storage outage rejects the request before querying data or invoking AI', async t => {
+  t.mock.method(questionLog, 'start', async () => { throw new Error('private DB error'); });
+  const query = t.mock.method(vehicleRepository, 'getVehicles', async () => []);
+  const response = await ask(appFor());
+  assert.equal(response.status, 503);
+  assert.equal(query.mock.callCount(), 0);
+  assert.ok(!(await response.text()).includes('private DB'));
+});
+
+test('concurrency rejection and expired session are still durable classified questions', async t => {
+  const start = t.mock.method(questionLog, 'start', async () => 'id');
+  const finish = t.mock.method(questionLog, 'finish', async (_id: string, _completion: QuestionCompletion) => {});
+  const release = acquire(user.userId)!;
+  try { assert.equal((await ask(appFor())).status, 429); } finally { release(); }
+  assert.equal((await ask(appFor(), { message: '追问', subject: null, sessionId: 'missing' })).status, 409);
+  assert.equal(start.mock.callCount(), 2);
+  assert.equal(finish.mock.calls[0].arguments[1].reason, 'busy');
+  assert.equal(finish.mock.calls[1].arguments[1].reason, 'session_expired');
+});
+
+test('failed queries are logged for preview users without creating gap feedback', async t => {
+  const start = t.mock.method(questionLog, 'start', async () => 'id');
+  const finish = t.mock.method(questionLog, 'finish', async (_id: string, _completion: QuestionCompletion) => {});
+  const gap = t.mock.method(gapStore, 'record', async () => {});
+  t.mock.method(vehicleRepository, 'getVehicles', async () => { throw new Error('private failure'); });
+  const response = await ask(appFor({ ...user, preview: { actorId: 'actor', sessionId: 'preview' } }));
+  const text = await response.text();
+  assert.match(text, /查询未完成/);
+  assert.ok(!text.includes('private failure'));
+  assert.equal(start.mock.callCount(), 1);
+  assert.equal(finish.mock.calls[0].arguments[1].outcome, 'failed');
+  assert.equal(gap.mock.callCount(), 0);
+});
+
+test('finalization retries transient failures and reports persistent failures', async t => {
+  let calls = 0, alwaysFail = false;
+  t.mock.method(questionLog, 'finish', async () => { if (++calls === 1 || alwaysFail) throw new Error('transient'); });
+  assert.equal(await finishQuestionLog('id', { outcome: 'success' }), true);
+  assert.equal(calls, 2);
+  alwaysFail = true;
+  const warning = t.mock.method(console, 'error', () => {});
+  assert.equal(await finishQuestionLog('id', { outcome: 'failed' }), false);
+  assert.deepEqual(warning.mock.calls[0].arguments, ['asset_ai_question_completion_failed', 'id']);
+});
+
+test('successful questions, follow-ups, actions and feedback keep distinct operation types', async t => {
+  const statements: unknown[][] = [];
+  t.mock.method(pool, 'query', async (options: { sql?: string } | string, values: unknown[]) => {
+    if (typeof options !== 'string' && options.sql?.includes('bi_asset_ai_questions')) statements.push(values);
+    return [[], []];
+  });
+  t.mock.method(vehicleRepository, 'getVehicles', async () => []);
+  t.mock.method(gapStore, 'record', async () => {});
+  const old = process.env.ASSET_AI_EXTERNAL_ENABLED;
+  process.env.ASSET_AI_EXTERNAL_ENABLED = '0';
+  t.after(() => { if (old === undefined) delete process.env.ASSET_AI_EXTERNAL_ENABLED; else process.env.ASSET_AI_EXTERNAL_ENABLED = old; });
+  const app = appFor({ ...user, userId: 'success-test' });
+  const response = await ask(app);
+  const events = (await response.text()).split('\n').filter(line => line.startsWith('data:')).map(line => JSON.parse(line.slice(5)));
+  const r = events.find(event => event.type === 'result')?.result as AssistantResult;
+  assert.ok(r, JSON.stringify(events));
+  assert.equal(statements[0][11], 'question');
+  assert.ok(['success', 'empty'].includes(String(statements[1][0])));
+  assert.equal(statements[1][2], r.sessionId);
+  assert.equal(statements[1][3], r.resultId);
+  assert.deepEqual(JSON.parse(String(statements[1][4])), ['inventory']);
+  await questionLog.start(user, { message: '按区域看', subject: null, sessionId: r.sessionId });
+  assert.equal(statements.at(-1)![11], 'followup');
+  await questionLog.start(user, { subject: null, sessionId: r.sessionId, baseResultId: r.resultId, action: { type: 'category', category: 'abnormal' } });
+  assert.equal(statements.at(-1)![11], 'action');
+  assert.deepEqual(JSON.parse(String(statements.at(-1)![13])), { type: 'category', category: 'abnormal' });
+  const feedback = await app.request('/ai/feedback', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ sessionId: r.sessionId, resultId: r.resultId, subject: null }) });
+  assert.equal(feedback.status, 200);
+  assert.equal(statements.at(-2)![11], 'feedback');
+  assert.equal(statements.at(-1)![0], 'feedback');
+});
+
+test('client cancellation finalizes the durable question and releases the user query lock', async t => {
+  t.mock.method(questionLog, 'start', async () => 'cancel-id');
+  let complete!: (value: QuestionCompletion) => void;
+  const completed = new Promise<QuestionCompletion>(resolve => { complete = resolve; });
+  t.mock.method(questionLog, 'finish', async (_id: string, completion: QuestionCompletion) => { complete(completion); });
+  let continueQuery!: () => void;
+  t.mock.method(vehicleRepository, 'getVehicles', async () => { await new Promise<void>(resolve => { continueQuery = resolve; }); return []; });
+  const cancelledUser = { ...user, userId: 'cancel-test' };
+  const response = await ask(appFor(cancelledUser));
+  const reader = response.body!.getReader();
+  await reader.read();
+  await reader.cancel();
+  continueQuery();
+  const completion = await completed;
+  assert.equal(completion.outcome, 'cancelled');
+  // Finalizer releases the lock after the asynchronous database update.
+  await new Promise(resolve => setImmediate(resolve));
+  const release = acquire(cancelledUser.userId);
+  assert.ok(release);
+  release();
+});
@@ -0,0 +1,72 @@
+import { randomUUID } from 'node:crypto';
+import pool from '../../db.js';
+import type { AuthUser } from '../../auth/types.js';
+import type { AssistantRequest, AssistantResult, GapReason } from '../../../shared/assets/assistant.js';
+
+export type QuestionOutcome = 'processing' | 'success' | 'empty' | 'partial' | 'clarification' | 'help' | 'unsupported' | 'failed' | 'cancelled' | 'rejected' | 'feedback';
+export type QuestionCompletion = {
+  outcome: QuestionOutcome;
+  sessionId?: string;
+  resultId?: string;
+  result?: AssistantResult;
+  reason?: string;
+};
+// Credentials are never useful for question analysis. Keep the rest of the accepted question intact.
+export function redactQuestion(value: string): string {
+  return value.replace(/sk-[a-z0-9_-]{8,}/gi, '[凭据已隐藏]')
+    .replace(/(Bearer\s+)[\w.+/=-]+/gi, '$1[凭据已隐藏]')
+    .replace(/((?:password|passwd|api[_-]?key|access[_-]?token|secret|密码|口令)\s*[:=：]\s*)[^\s,，;；]+/gi, '$1[凭据已隐藏]');
+}
+export function questionOutcome(result: AssistantResult, reason?: GapReason): QuestionOutcome {
+  if (result.outcome === 'partial' || result.unanswered?.length) return 'partial';
+  if (reason === 'unsupported' || result.outcome === 'unsupported') return 'unsupported';
+  if (reason === 'generation') return 'failed';
+  if (result.outcome === 'help' || result.answerKind === 'help') return 'help';
+  if (result.plan.kind === 'clarify') return 'clarification';
+  if (result.outcome === 'empty' || reason === 'empty') return 'empty';
+  return 'success';
+}
+export function businessTypes(result?: AssistantResult): string[] {
+  if (!result) return [];
+  const items = result.sections?.flatMap(section => section.result ? [section.result] : []) || [result];
+  return [...new Set(items.map(item => item.plan.kind === 'flow' ? 'flow' : item.plan.kind === 'clarify' ? 'general' : item.plan.category))];
+}
+export const questionLog = {
+  async start(user: AuthUser, input: AssistantRequest, eventType?: 'feedback'): Promise<string> {
+    const id = randomUUID();
+    await pool.query({ sql: `INSERT INTO bi_asset_ai_questions
+      (id,actor_id,user_id,login_name,user_name,permission_level,is_preview,preview_session_id,
+       session_id,base_result_id,subject,event_type,question,action_json,outcome,started_at)
+      VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,'processing',UTC_TIMESTAMP(3))`, timeout: 5000 }, [
+      id, user.preview?.actorId || user.userId, user.userId, user.loginName, user.userName,
+      user.permissionLevel, user.preview ? 1 : 0, user.preview?.sessionId || null,
+      input.sessionId || null, input.baseResultId || null, input.subject,
+      eventType || (input.action ? 'action' : input.sessionId ? 'followup' : 'question'),
+      input.message ? redactQuestion(input.message) : null,
+      input.action ? JSON.stringify(input.action, (_key, value) => typeof value === "string" ? redactQuestion(value) : value) : null,
+    ]);
+    return id;
+  },
+  async finish(id: string, completion: QuestionCompletion): Promise<void> {
+    const result = completion.result;
+    // Persist the textual answer and classification, not a duplicate of vehicle detail datasets.
+    await pool.query({ sql: `UPDATE bi_asset_ai_questions SET outcome=?,reason=?,session_id=COALESCE(?,session_id),
+      result_id=?,business_types=?,engine=?,answer=?,finished_at=UTC_TIMESTAMP(3),
+      duration_ms=TIMESTAMPDIFF(MICROSECOND,started_at,UTC_TIMESTAMP(3)) DIV 1000
+      WHERE id=? AND outcome='processing'`, timeout: 5000 }, [
+      completion.outcome, completion.reason || null, completion.sessionId || null,
+      completion.resultId || result?.resultId || null, JSON.stringify(businessTypes(result)),
+      result?.engine || null, result ? redactQuestion(JSON.stringify({ summary: result.summary, warning: result.warning,
+        unanswered: result.unanswered, sections: result.sections?.map(section => ({ title: section.title, summary: section.result?.summary })) })) : null, id,
+    ]);
+  },
+};
+
+/** A failed update never erases the durable original question. Retry once and expose failure to the caller. */
+export async function finishQuestionLog(id: string, completion: QuestionCompletion): Promise<boolean> {
+  for (let attempt = 0; attempt < 2; attempt++) {
+    try { await questionLog.finish(id, completion); return true; } catch { /* retry transient failures */ }
+  }
+  console.error('asset_ai_question_completion_failed', id);
+  return false;
+}
@@ -1,3 +1,10 @@
+import { beforeEach } from 'node:test';
+import { questionLog } from './question-log.js';
+beforeEach(t => {
+  if (!('mock' in t)) throw new Error('Expected test context');
+  t.mock.method(questionLog, 'start', async () => 'synthetic-question');
+  t.mock.method(questionLog, 'finish', async () => {});
+});
 import assert from "node:assert/strict";
 import test, { type TestContext } from "node:test";
 import { Hono } from "hono";
@@ -0,0 +1,136 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { Hono } from 'hono';
+import { mapFault } from './model.js';
+import { faultDashboard, dashboardAnalysis, filterDashboardRows } from './dashboard.js';
+import { createFaultRouter } from './index.js';
+import type { AuthUser } from '../../auth/types.js';
+const updatedAt='2026-10-13T08:00:00Z';
+const q={start:'2026-10-12',end:'2026-10-13'};
+const fault=(id:string,extra:Record<string,unknown>={})=>mapFault({id,fault_code:`F${id}`,matched_vehicle_id:'v1',plate_number:'沪A001',model_name:'车型A',province_name:'上海市',customer_name:'客户A',business_dept:'部门A',reported_at:'2026-10-13 08:00:00',handling_status:'待处理',fault_level:1,fault_categories:'底盘故障,三电故障',...extra},new Map());
+const rows=[fault('1'),fault('2',{handling_status:'已归档',archived_at:'2026-10-13 12:00:00'}),fault('3',{reported_at:'2026-10-01 08:00:00',handling_status:'处理中',deadline_at:'2026-10-12 15:00:00',matched_vehicle_id:'v2'}),fault('4',{matched_vehicle_id:null,plate_number:null,fault_level:null,fault_categories:null,customer_name:null}),fault('5',{reported_at:'2026-10-10 08:00:00',handling_status:'挂起'})];
+test('dashboard separates reporting cohort from all-date current workload, preserves unknowns and deduplicates vehicles',()=>{
+ const d=faultDashboard(rows,q,updatedAt);
+ assert.equal(d.totals.reported,3);assert.equal(d.totals.vehicles,1);assert.equal(d.totals.customers,1);
+ assert.equal(d.totals.open,3);assert.equal(d.totals.waiting+d.totals.processing,d.totals.open);assert.equal(d.totals.overdue,1);assert.equal(d.totals.longestOverdueDays,2);
+ assert.equal(d.totals.previous,1);assert.equal(d.totals.change,200);
+ assert.equal(d.quality.missingLevel,1);assert.equal(d.quality.missingVehicle,1);assert.equal(d.quality.missingCategory,1);
+ assert.equal(d.focus[0].id,'3');assert.equal(d.distributions.region.reduce((n,r)=>n+r.reported,0),3);
+ const m=rows[0].assetCell.model;assert.equal(d.matrix.totals[m],3);assert.equal(d.matrix.cells.find(c=>c.model===m&&c.category==='底盘故障')?.count,2);
+ assert.equal(d.matrix.cells.find(c=>c.model===m&&c.category==='三电故障')?.count,2);
+});
+test('dashboard drill scope and all filters reconcile to visible aggregates without leaking internal fields',()=>{
+ const d=faultDashboard(rows,q,updatedAt);const group=d.distributions.customer.find(r=>r.label!=='未关联客户')!;
+ const details=dashboardAnalysis(rows,{...q,customer:group.value},updatedAt);
+ assert.equal(details.rows.length,group.reported);assert.ok(details.rows.every(r=>!('vehicleKey'in r)&&!('managerId'in r)));
+ assert.deepEqual(dashboardAnalysis(rows,{...q,scope:'overdue'},updatedAt).rows.map(r=>r.id),['3']);
+ assert.equal(dashboardAnalysis(rows,{...q,scope:'ledger',id:'5'},updatedAt).rows.length,1);
+ assert.equal(filterDashboardRows(rows,{level:'未标注',category:'未标注'}).length,1);
+ assert.equal(dashboardAnalysis(rows,{...q,scope:'cohort',level:'未标注'},updatedAt).rows.length,1);
+ const empty=faultDashboard(rows,{...q,region:'不存在'},updatedAt);assert.equal(empty.totals.reported,0);assert.equal(empty.totals.change,null);assert.equal(empty.totals.longestOverdueDays,0);
+});
+test('dashboard and report endpoints enforce authentication, permissions, dates and shared filters',async()=>{
+ let loads=0;const router=createFaultRouter(async()=>{loads++;return{rows,updatedAt};});const anonymous=new Hono();anonymous.route('/f',router);
+ assert.equal((await anonymous.request('/f/dashboard')).status,401);assert.equal(loads,0);
+ const user:AuthUser={userId:'test',loginName:'test',userName:'测试',roles:[],permissionLevel:'department',depName:'部门A',depCode:'a'};
+ const app=new Hono<{Variables:{user:AuthUser}}>();app.use('*',async(c,next)=>{c.set('user',user);await next();});app.route('/f',router);
+ assert.equal((await app.request('/f/dashboard?start=bad')).status,400);assert.equal(loads,0);
+ assert.equal((await app.request('/f/dashboard-analysis?scope=unknown')).status,400);assert.equal(loads,0);
+ const report=await(await app.request('/f/dashboard?start=2026-10-12&end=2026-10-13')).json();assert.equal(report.totals.reported,2);assert.equal(report.options.level.some((o:{value:string})=>o.value==='未标注'),false);
+ const trend=await(await app.request('/f/trend?start=2026-10-12&end=2026-10-13&level=未标注')).json();assert.equal(trend.totals.reported,0);
+ const weekly=await(await app.request('/f/weekly-report?start=2026-10-12&end=2026-10-13&level=未标注')).json();assert.equal(weekly.totals.reported,0);
+});
+
+test('focus contains only L1 unclosed faults across all dates and keeps totals and full drill consistent', () => {
+ const focusRows = [
+  fault('waiting', { reported_at: '2026-09-01 08:00:00' }),
+  fault('processing', { handling_status: '处理中', deadline_at: '2026-10-12 15:00:00' }),
+  fault('paused', { handling_status: '挂起', deadline_at: '2026-10-01 08:00:00' }),
+  fault('review', { handling_status: '审核中' }),
+  fault('unknown', { handling_status: '其他状态' }),
+  fault('sixth'),
+  fault('seventh'),
+  fault('closed', { handling_status: '已归档' }),
+  fault('l2-overdue', { fault_level: 2, deadline_at: '2026-10-01 08:00:00' }),
+  fault('l3', { fault_level: 3 }),
+  fault('l4', { fault_level: 4 }),
+  fault('unmarked', { fault_level: null }),
+ ];
+ const dashboard = faultDashboard(focusRows, q, updatedAt);
+ assert.deepEqual(dashboard.focusTotals, { total: 7, overdue: 1 });
+ assert.equal(dashboard.focus.length, 5);
+ assert.equal(dashboard.focus[0].id, 'processing');
+ assert.ok(dashboard.focus.every(row => row.level === 'L1-特急' && row.status !== '已归档'));
+ const allFocus = dashboardAnalysis(focusRows, { ...q, scope: 'focus' }, updatedAt).rows;
+ assert.equal(allFocus.length, dashboard.focusTotals.total);
+ assert.ok(allFocus.some(row => row.id === 'waiting'));
+ assert.ok(allFocus.some(row => row.id === 'paused'));
+ assert.ok(allFocus.some(row => row.id === 'review'));
+ assert.ok(allFocus.every(row => !('vehicleKey' in row) && !('managerId' in row)));
+ assert.deepEqual(dashboardAnalysis(focusRows, { ...q, scope: 'focus', id: 'closed' }, updatedAt).rows, []);
+ const filtered = faultDashboard(focusRows, { ...q, level: 'L2-紧急' }, updatedAt);
+ assert.deepEqual(filtered.focus, []);
+ assert.deepEqual(filtered.focusTotals, { total: 0, overdue: 0 });
+ assert.deepEqual(dashboardAnalysis(focusRows, { ...q, scope: 'focus', level: 'L2-紧急' }, updatedAt).rows, []);
+});
+test('focus dashboard and full drill enforce permissions and business filters before selecting L1 faults', async () => {
+ const scopedRows = [fault('allowed'), fault('outside', { business_dept: '部门B' }), fault('closed', { handling_status: '已归档' }), fault('lower', { fault_level: 2 })];
+ const user: AuthUser = { userId: 'test', loginName: 'test', userName: '测试', roles: [], permissionLevel: 'department', depName: '部门A', depCode: 'a' };
+ const app = new Hono<{ Variables: { user: AuthUser } }>();
+ app.use('*', async (c, next) => { c.set('user', user); await next(); });
+ app.route('/f', createFaultRouter(async () => ({ rows: scopedRows, updatedAt })));
+ const report = await (await app.request('/f/dashboard?start=2026-10-12&end=2026-10-13')).json();
+ assert.deepEqual(report.focus.map((row: { id: string }) => row.id), ['allowed']);
+ assert.deepEqual(report.focusTotals, { total: 1, overdue: 0 });
+ const response = await app.request('/f/dashboard-analysis?start=2026-10-12&end=2026-10-13&scope=focus');
+ assert.equal(response.status, 200);
+ const detail = await response.json();
+ assert.deepEqual(detail.rows.map((row: { id: string }) => row.id), ['allowed']);
+ const empty = await (await app.request('/f/dashboard-analysis?scope=focus&department=不存在')).json();
+ assert.deepEqual(empty.rows, []);
+});
+
+test('report source follows explicit OneOS report method before legacy task linkage', () => {
+ const cases: [Record<string, unknown>, 'operations' | 'customer'][] = [
+  [{ report_method: '运维上报', source_work_order_id: '9007199254740993' }, 'operations'],
+  [{ report_method: '客户上报', source_work_order_id: null }, 'customer'],
+  [{ report_method: ' 客户上报 ', source_work_order_id: '123' }, 'customer'],
+  [{ report_method: null, source_work_order_id: '9007199254740993' }, 'customer'],
+  [{ report_method: '', source_work_order_id: null }, 'operations'],
+  [{ report_method: null, source_work_order_id: null, fault_source: 6 }, 'operations'],
+ ];
+ for (const [raw, expected] of cases) assert.equal(fault('source', raw).reportMethod, expected);
+});
+test('reported source counts reconcile with cohort, filtered drills, permissions and export labels', async () => {
+ const sourceRows = [
+  fault('ops-linked', { report_method: '运维上报', source_work_order_id: '123' }),
+  fault('ai-explicit', { report_method: '客户上报', source_work_order_id: null }),
+  fault('ai-legacy', { report_method: null, source_work_order_id: '9007199254740993', handling_status: '已归档' }),
+  fault('ops-legacy', { report_method: null, source_work_order_id: null }),
+  fault('previous-ai', { report_method: '客户上报', reported_at: '2026-10-10 10:00:00' }),
+  fault('hidden-ai', { report_method: '客户上报', business_dept: '部门B' }),
+ ];
+ const user: AuthUser = { userId: 'test', loginName: 'test', userName: '测试', roles: [], permissionLevel: 'department', depName: '部门A', depCode: 'a' };
+ const app = new Hono<{ Variables: { user: AuthUser } }>();
+ app.use('*', async (c, next) => { c.set('user', user); await next(); });
+ app.route('/f', createFaultRouter(async () => ({ rows: sourceRows, updatedAt })));
+ const query = new URLSearchParams(q);
+ const report = await (await app.request(`/f/dashboard?${query}`)).json();
+ assert.equal(report.totals.reported, 4);
+ assert.equal(report.totals.operationsReported, 2);
+ assert.equal(report.totals.customerReported, 2);
+ assert.equal(report.totals.operationsReported + report.totals.customerReported, report.totals.reported);
+ assert.equal(report.options.reportMethod.find((o: { value: string }) => o.value === 'customer').label, 'AI提报');
+ assert.equal(report.options.reportMethod.find((o: { value: string }) => o.value === 'operations').label, '运维提报');
+ for (const [method, expected] of [['operations', ['ops-linked', 'ops-legacy']], ['customer', ['ai-explicit', 'ai-legacy']]] as const) {
+  const response = await app.request(`/f/dashboard-analysis?${query}&scope=cohort&reportMethod=${method}`);
+  assert.equal(response.status, 200);
+  const detail = await response.json();
+  assert.deepEqual(detail.rows.map((row: { id: string }) => row.id).sort(), [...expected].sort());
+  const filtered = await (await app.request(`/f/dashboard?${query}&reportMethod=${method}`)).json();
+  assert.equal(filtered.totals.reported, expected.length);
+  assert.equal(filtered.totals.operationsReported + filtered.totals.customerReported, filtered.totals.reported);
+ }
+ const empty = await (await app.request(`/f/dashboard?${query}&region=不存在`)).json();
+ assert.equal(empty.totals.operationsReported, 0); assert.equal(empty.totals.customerReported, 0);
+});
@@ -0,0 +1,75 @@
+import { FAULT_REPORT_METHODS, FAULT_DASHBOARD_FILTERS, type FaultDashboardDimension, type FaultDashboardResponse, type FaultDashboardScope } from '../../../shared/assets/faults.js';
+import { faultAnalysis, faultOverview, isOverdueFault, type ScopedFault } from './model.js';
+import { parseFaultTrendQuery, selectFaultCohort } from './trend.js';
+
+export function dashboardValues(row: ScopedFault, key: FaultDashboardDimension): string[] {
+  if (key === 'handler') return row.handlers.map(h => h.value);
+  if (key === 'level') return [row.level || '未标注'];
+  if (key === 'category') return row.categories?.length ? row.categories : ['未标注'];
+  if (key === 'inventory') return [row.inventory];
+  if (key === 'reportMethod') return [row.reportMethod || 'operations'];
+  return [row.assetCell[key]];
+}
+function label(row: ScopedFault, key: FaultDashboardDimension, value: string) {
+  if (key === 'reportMethod') return FAULT_REPORT_METHODS[value as keyof typeof FAULT_REPORT_METHODS] || value;
+  return key === 'customer' ? row.customerLabel : key === 'handler' ? row.handlers.find(h => h.value === value)?.label || value : value;
+}
+export function filterDashboardRows(rows: ScopedFault[], params: Record<string, string>) {
+  return rows.filter(row => (Object.keys(FAULT_DASHBOARD_FILTERS) as FaultDashboardDimension[]).every(key => !params[key] || dashboardValues(row, key).includes(params[key])));
+}
+export function parseDashboardQuery(params: Record<string, string>) {
+  const query = parseFaultTrendQuery({ start: params.start, end: params.end });
+  const scope = params.scope || 'cohort';
+  if (!['focus', 'cohort', 'open', 'waiting', 'processing', 'overdue', 'ledger', 'reported', 'closed'].includes(scope)) throw new Error('无效统计范围');
+  return { ...query, scope: scope as FaultDashboardScope };
+}
+function selectFocusFaults(rows: ScopedFault[]) {
+  return rows.filter(row => row.level === 'L1-特急' && row.status !== '已归档');
+}
+export function dashboardAnalysis(rows: ScopedFault[], params: Record<string, string>, updatedAt: string) {
+  const query = parseDashboardQuery(params);
+  let selected = filterDashboardRows(rows, params);
+  if (params.id) selected = selected.filter(row => row.id === params.id);
+  if (query.scope === 'cohort') selected = selectFaultCohort(selected, query);
+  if (query.scope === 'focus') selected = selectFocusFaults(selected);
+  return faultAnalysis(selected, query.scope === 'cohort' || query.scope === 'focus' ? 'ledger' : query.scope, updatedAt);
+}
+export function faultDashboard(visible: ScopedFault[], params: Record<string, string>, updatedAt: string): FaultDashboardResponse {
+  const query = parseDashboardQuery(params);
+  const all = filterDashboardRows(visible, params);
+  const cohort = selectFaultCohort(all, query);
+  const overview = faultOverview(all, updatedAt).totals;
+  const open = all.filter(r => ['待处理', '处理中'].includes(r.status));
+  const overdue = open.filter(r => isOverdueFault(r, updatedAt));
+  const vehicles = (rows: ScopedFault[]) => new Set(rows.map(r => r.vehicleKey).filter(Boolean)).size;
+  const options = Object.fromEntries((Object.keys(FAULT_DASHBOARD_FILTERS) as FaultDashboardDimension[]).map(key => [key,
+    [...new Map(visible.flatMap(row => dashboardValues(row, key).map(value => [value, { value, label: label(row, key, value) }] as const))).values()].sort((a, b) => a.label.localeCompare(b.label, 'zh-CN')),
+  ])) as FaultDashboardResponse['options'];
+  function groups(key: 'region' | 'level' | 'customer' | 'model') {
+    const buckets = new Map<string, ScopedFault[]>();
+    cohort.forEach(row => { const value = dashboardValues(row, key)[0]; const group = buckets.get(value) || []; group.push(row); buckets.set(value, group); });
+    return [...buckets].map(([value, rows]) => ({ value, label: label(rows[0], key, value), reported: rows.length,
+      closed: rows.filter(r => r.status === '已归档').length, unclosed: rows.filter(r => r.status !== '已归档').length,
+      vehicles: vehicles(rows), open: open.filter(r => dashboardValues(r, key).includes(value)).length,
+    })).sort((a, b) => b.reported - a.reported || a.label.localeCompare(b.label, 'zh-CN'));
+  }
+  const distributions = { region: groups('region'), level: groups('level'), customer: groups('customer'), model: groups('model') };
+  const categoryKeys = [...new Set(cohort.flatMap(row => dashboardValues(row, 'category')))].sort((a,b)=>a.localeCompare(b,'zh-CN'));
+  const matrix = { models: distributions.model.map(r => ({value:r.value,label:r.label})), categories: categoryKeys.map(value => ({value,label:value})),
+    cells: distributions.model.flatMap(model => categoryKeys.map(category => ({model:model.value,category,count:cohort.filter(r=>r.assetCell.model===model.value&&dashboardValues(r,'category').includes(category)).length}))),
+    totals: Object.fromEntries(distributions.model.map(r=>[r.value,r.reported])),
+  };
+  const duration = Date.parse(query.end) - Date.parse(query.start) + 86400000;
+  const previousStart = new Date(Date.parse(query.start) - duration).toISOString().slice(0,10);
+  const previous = all.filter(r => r.reportedAt && r.reportedAt.slice(0,10) >= previousStart && r.reportedAt.slice(0,10) < query.start).length;
+  const focusRows = selectFocusFaults(all);
+  const focusTotals = { total: focusRows.length, overdue: focusRows.filter(row => isOverdueFault(row, updatedAt)).length };
+  const focus = faultAnalysis([...focusRows].sort((a,b)=> Number(isOverdueFault(b,updatedAt))-Number(isOverdueFault(a,updatedAt)) || (b.reportedAt||'').localeCompare(a.reportedAt||'')).slice(0,5), 'ledger', updatedAt).rows;
+  return { start:query.start,end:query.end,updatedAt,options,distributions,matrix,focus,focusTotals,
+    totals: { reported:cohort.length,operationsReported:cohort.filter(r=>r.reportMethod!=='customer').length,customerReported:cohort.filter(r=>r.reportMethod==='customer').length,vehicles:vehicles(cohort),customers:new Set(cohort.filter(r=>!['unlinked','inventory-unlinked'].includes(r.customer)).map(r=>r.customer)).size,
+      previous,change:previous ? (cohort.length-previous)/previous*100 : null,open:overview.open,waiting:overview.waiting,processing:overview.processing,overdue:overview.overdue,
+      longestOverdueDays:Math.max(0,...overdue.map(r=>Math.ceil((Date.parse(updatedAt)-Date.parse(`${r.deadlineAt!.replace(' ','T')}+08:00`))/86400000))),
+      todayReported:overview.reported,todayClosed:overview.closed,ledger:all.length },
+    quality:{missingLevel:cohort.filter(r=>!r.level||r.level==='未标注').length,missingCategory:cohort.filter(r=>!r.categories?.length).length,missingVehicle:cohort.filter(r=>!r.vehicleKey).length,missingDeadline:open.filter(r=>!r.deadlineAt).length,missingReport:all.filter(r=>!r.reportedAt).length},
+  };
+}
@@ -1,4 +1,5 @@
 import { Hono } from 'hono';
+import { dashboardAnalysis, faultDashboard, filterDashboardRows, parseDashboardQuery } from './dashboard.js';
 import { FAULT_OVERVIEW_METRICS, type FaultOverviewMetric } from '../../../shared/assets/faults.js';
 import type { AuthUser } from '../../auth/types.js';
 import { analyzeFaults, faultOverview, faultAnalysis, parseFaultQuery, visibleFaults } from './model.js';
@@ -8,6 +9,18 @@ import { faultTrend, faultTrendAnalysis, parseFaultTrendQuery } from './trend.js

 export function createFaultRouter(load = loadFaults) {
  const app = new Hono<{ Variables: { user: AuthUser } }>();
+  for (const path of ['/dashboard', '/dashboard-analysis'] as const) {
+    app.get(path, async c => {
+      const user = c.get('user');
+      if (!user) return c.json({ error: 'Unauthorized' }, 401);
+      const params = c.req.query();
+      try { parseDashboardQuery(params); } catch(error) { return c.json({error:(error as Error).message},400); }
+      try {
+        const data = await load(); const rows = visibleFaults(data.rows,user); c.header('Cache-Control','no-store');
+        return c.json(path === '/dashboard' ? faultDashboard(rows,params,data.updatedAt) : dashboardAnalysis(rows,params,data.updatedAt));
+      } catch { return c.json({error:'故障分析暂时不可用，请稍后重试'},503); }
+    });
+  }
  for (const path of ['/trend', '/trend-analysis'] as const) {
    app.get(path, async c => {
      const user = c.get('user');
@@ -17,7 +30,7 @@ export function createFaultRouter(load = loadFaults) {
      catch (error) { return c.json({ error: (error as Error).message }, 400); }
      try {
        const data = await load();
-        const rows = visibleFaults(data.rows, user);
+        const rows = filterDashboardRows(visibleFaults(data.rows, user), c.req.query());
        c.header('Cache-Control', 'no-store');
        return c.json(path === '/trend' ? faultTrend(rows, query, data.updatedAt) : faultTrendAnalysis(rows, query, data.updatedAt));
      } catch (error) {
@@ -35,7 +48,7 @@ export function createFaultRouter(load = loadFaults) {
      catch (error) { return c.json({ error: (error as Error).message }, 400); }
      try {
        const data = await load();
-        const rows = visibleFaults(data.rows, user);
+        const rows = filterDashboardRows(visibleFaults(data.rows, user), c.req.query());
        c.header('Cache-Control', 'no-store');
        return c.json(path === '/weekly-report' ? faultWeeklyReport(rows, query, data.updatedAt) : faultWeeklyAnalysis(rows, query, data.updatedAt));
      } catch (error) {
@@ -1,5 +1,5 @@
 import { createHash } from 'node:crypto';
-import { FAULT_DIMENSIONS, FAULT_OVERVIEW_METRICS, type FaultDimension, type FaultOption, type FaultRecord, type FaultQuery, type FaultResponse } from '../../../shared/assets/faults.js';
+import { FAULT_DIMENSIONS, FAULT_OVERVIEW_METRICS, type FaultDimension, type FaultOption, type FaultRecord, type FaultQuery, type FaultResponse, type FaultReportMethod } from '../../../shared/assets/faults.js';
 import type { AuthUser } from '../../auth/types.js';
 import { filterByPermission, maskCustomerName } from '../../auth/permissions.js';
 import type { AssetAnalysisCell } from '../../../shared/assets/analytics.js';
@@ -9,6 +9,7 @@ export type RawFault = Record<string, unknown>;
 export interface ScopedFault extends FaultRecord {
  subject: string; departmentName: string; managerId: string; missingVehicle: boolean;
  assetCell: AssetAnalysisCell;
+  vehicleKey?: string;
 }
 export function normalizeFaultStatus(value: unknown): string {
  const status = String(value ?? '').trim();
@@ -27,6 +28,13 @@ function array(value: unknown, preserveIds = false): unknown[] {
 }
 const text = (value: unknown) => String(value ?? '').trim();
 const positiveId = (value: unknown) => /^[1-9]\d*$/.test(text(value));
+// Match OneOS reportMethod: explicit source wins, task linkage is a legacy fallback.
+export function faultReportMethod(row: RawFault): FaultReportMethod {
+  const method = text(row.report_method);
+  if (method === '运维上报') return 'operations';
+  if (method === '客户上报') return 'customer';
+  return positiveId(row.source_work_order_id) ? 'customer' : 'operations';
+}
 export function faultHandlers(row: RawFault, directory: Map<string, string>): FaultOption[] {
  const candidates = [
    [array(row.work_ids, true), array(row.work_names)],
@@ -77,6 +85,10 @@ export function mapFault(row: RawFault, directory: Map<string, string>): ScopedF
    manager: text(row.business_manager) || '未分配', customer: customerKey, abnormalType: '不适用', abnormalAge: 'unknown', quantity: 1,
  };
  return {
+    vehicleKey: text(row.matched_vehicle_id) || (text(row.plate_number) ? `plate:${text(row.plate_number)}` : ''),
+    level: text(row.level_label) || ({ '1': 'L1-特急', '2': 'L2-紧急', '3': 'L3-一般', '4': 'L4-提示' } as Record<string, string>)[text(row.fault_level)] || '未标注',
+    categories: [...new Set(text(row.fault_categories).split(/[,，、;；]/).map(v => v.trim()).filter(Boolean))],
+    progress: text(row.solve_process), reportMethod: faultReportMethod(row),
    id: text(row.id), code: text(row.fault_code), plate: text(row.plate_number) || '未关联车辆',
    description: text(row.fault_desc), reportedAt: text(row.reported_at) || null, archivedAt: text(row.archived_at) || null, deadlineAt: text(row.deadline_at) || null, receivedAt: text(row.received_at) || null,
    city, status: normalizeFaultStatus(row.handling_status), assetCell,
@@ -148,7 +160,7 @@ export function analyzeFaults(visible: ScopedFault[], query: FaultQuery, updated
    quality: { missingReport: rows.filter(r => !r.reportedAt).length,
      invalidChronology: rows.filter(r => r.reportedAt && r.archivedAt && r.archivedAt < r.reportedAt).length,
      missingVehicle: rows.filter(r => r.missingVehicle).length },
-    details: { rows: details.slice((page - 1) * pageSize, page * pageSize).map(({ subject, departmentName, managerId, missingVehicle, assetCell, ...row }) => row), total: details.length, page, pageSize },
+    details: { rows: details.slice((page - 1) * pageSize, page * pageSize).map(({ subject, departmentName, managerId, missingVehicle, vehicleKey, assetCell, ...row }) => row), total: details.length, page, pageSize },
  };
 }

@@ -187,5 +199,5 @@ export function faultAnalysis(rows: ScopedFault[], metric: import('../../../shar
  const date = faultBusinessDate(updatedAt);
  const selected = selectFaultMetric(rows, metric, date, updatedAt);
  return { date, updatedAt, metric, customerLabels: Object.fromEntries(selected.map(row => [row.customer, row.customerLabel])),
-    rows: selected.map(({ subject, departmentName, managerId, missingVehicle, assetCell, ...row }) => ({ ...row, cell: assetCell })) };
+    rows: selected.map(({ subject, departmentName, managerId, missingVehicle, vehicleKey, assetCell, ...row }) => ({ ...row, cell: assetCell })) };
 }
@@ -4,6 +4,8 @@ import { mapFault, type RawFault } from './model.js';

 // OneOS fault ledger: latest delivery first; do not reuse the active-asset WHERE clause.
 export const FAULT_SQL = `SELECT
+  f.fault_level, f.fault_categories, f.solve_process, f.report_method,
+  CAST(f.source_work_order_id AS CHAR) source_work_order_id,
  CAST(f.id AS CHAR) id, f.fault_code, f.plate_number, f.fault_desc, f.handling_status,
  DATE_FORMAT(f.fault_report_time, '%Y-%m-%d %H:%i:%s') reported_at,
  DATE_FORMAT(f.archived_at, '%Y-%m-%d %H:%i:%s') archived_at,
@@ -0,0 +1,32 @@
+// Synthetic fixtures imported only by tests and the explicitly isolated QA harness.
+import type { Vehicle, VehicleRow } from '../../types.js';
+import { counts, freezeLive, type HistoryBatch, type HistorySettings, type HistoryVehicle } from './model.js';
+import { monthCutoff, shanghaiTimestamp } from '../../../shared/assets/history.js';
+import type { HistoryReader } from './store.js';
+
+export function testVehicle(id: string, overrides: Partial<Vehicle> = {}): Vehicle {
+  return { id, plateNumber: `测试-${id}`, vin: `TESTVIN${id}`, type: '18T', model: '测试18T厢货', color: '白色',
+    location: '嘉兴', region: '嘉兴', province: '浙江省', city: '嘉兴市', status: 'Operating', operationStatus: '1', vehicleStatus: '5',
+    ownership: 'Self', rentCompany: '', contractNo: '测试合同', customerName: '测试客户公司', orgName: '业务公司',
+    departmentName: '部门甲', subjectOrg: '公司甲', projectName: '测试项目', customerManager: '负责人甲', managerId: 'manager-a', brandLabel: '测试品牌', ...overrides };
+}
+export function testRow(id: string, operation = '1'): VehicleRow {
+  return { id, 车牌号: `测试-${id}`, vin: `TESTVIN${id}`, 车辆租赁状态: '5', 车辆租赁状态Label: operation,
+    主体: '公司甲', 合同归属部门: '部门甲', 经理ID: 'manager-a', 车辆型号Label: '18吨厢式货车' } as VehicleRow;
+}
+export function testBatch(month: string, vehicles: Vehicle[] = [], overrides: Partial<HistoryBatch> = {}): HistoryBatch {
+  return { id: `batch-${month}`, month, status: 'COMPLETE', source: 'AUTO', scheduledFor: shanghaiTimestamp(monthCutoff(month)),
+    capturedAt: shanghaiTimestamp(monthCutoff(month)), counts: counts(vehicles), ...overrides };
+}
+export class MemoryHistoryReader implements HistoryReader {
+  settingsValue: HistorySettings | null = { enabledAt: '2026-08-01T00:00:00+08:00' };
+  catalog: HistoryBatch[] = [];
+  rows = new Map<string, HistoryVehicle[]>();
+  calls: string[] = [];
+  async settings() { this.calls.push('settings'); return this.settingsValue; }
+  async batches() { this.calls.push('batches'); return this.catalog; }
+  async vehicles(ids: string[]) { this.calls.push('vehicles'); return new Map(ids.map(id => [id, this.rows.get(id) || []])); }
+  add(month: string, vehicles: Vehicle[], overrides: Partial<HistoryBatch> = {}) {
+    const batch = testBatch(month, vehicles, overrides); this.catalog.push(batch); this.rows.set(batch.id, freezeLive(vehicles)); return batch;
+  }
+}
@@ -0,0 +1,30 @@
+import { Hono } from 'hono';
+import type { AuthUser } from '../../auth/types.js';
+import pool from '../../db.js';
+import { vehicleRepository } from '../vehicles/repository.js';
+import { MysqlHistoryStore } from './store.js';
+import { HistoryService, HistoryInputError, HistoryPeriodUnavailable } from './service.js';
+
+export const historyStore = new MysqlHistoryStore(pool);
+// Published routes expose live data and verified snapshots only.
+// The retired handover reconstruction remains an offline audit artifact.
+export const historyService = new HistoryService(historyStore, () => vehicleRepository.getVehicles());
+export function createHistoryRouter(service: Pick<HistoryService, 'trend' | 'details' | 'livePoint'> = historyService) {
+  const router = new Hono<{ Variables: { user: AuthUser } }>();
+  router.use('*', async (c, next) => {
+    c.header('Cache-Control', 'private, no-store');
+    if (!c.get('user')) return c.json({ error: 'Unauthorized' }, 401);
+    await next();
+  });
+  router.get('/trend', async c => c.json(await service.trend(c.get('user'), c.req.query())));
+  router.get('/live', async c => c.json(await service.livePoint(c.get('user'), c.req.query())));
+  router.get('/details', async c => c.json(await service.details(c.get('user'), c.req.query())));
+  router.onError((error, c) => {
+    if (error instanceof HistoryInputError) return c.json({ error: error.message }, 400);
+    if (error instanceof HistoryPeriodUnavailable) return c.json({ error: error.message }, 409);
+    console.error('[asset-history] read failed');
+    return c.json({ error: '资产历史数据暂不可用，请稍后重试' }, 503);
+  });
+  return router;
+}
+export default createHistoryRouter();
@@ -0,0 +1,42 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { execFileSync } from 'node:child_process';
+import { monthCutoff, nextCapture, shanghaiMonth, shanghaiTimestamp } from '../../../shared/assets/history.js';
+import { counts, freezeRows, makePoint, freezeLive } from './model.js';
+import { testBatch, testRow, testVehicle } from './fixtures.js';
+
+test('Shanghai month-end cutoff covers leap years, short/long months and cross-year boundaries', () => {
+  for (const [month, expected] of [['2024-02','2024-02-29'], ['2026-02','2026-02-28'], ['2026-04','2026-04-30'], ['2026-10','2026-10-31'], ['2026-12','2026-12-31']]) {
+    assert.equal(shanghaiTimestamp(monthCutoff(month)), `${expected}T17:00:00.000+08:00`);
+    assert.equal(monthCutoff(month).toISOString(), `${expected}T09:00:00.000Z`);
+  }
+  assert.equal(shanghaiMonth(new Date('2026-12-31T16:00:00Z')), '2027-01');
+  assert.equal(nextCapture(new Date('2026-12-31T09:00:00Z')), '2027-01-31T17:00:00.000+08:00');
+  assert.throws(() => monthCutoff('2026-13'));
+});
+test('host TZ cannot change cutoff or Shanghai calendar', () => {
+  const script = "import {monthCutoff,shanghaiMonth} from './src/shared/assets/history.ts'; console.log(monthCutoff('2024-02').toISOString(),shanghaiMonth(new Date('2026-12-31T16:01:00Z')))";
+  const run = (TZ: string) => execFileSync(process.execPath, ['--import', 'tsx', '--input-type=module', '-e', script], { env: { ...process.env, TZ }, encoding: 'utf8' }).trim();
+  assert.equal(run('UTC'), run('America/Los_Angeles'));
+});
+test('source rows preserve precise IDs and raw states; pending and abnormal do not add to inventory', () => {
+  const rows = [testRow('9223372036854775000'), testRow('self','2'), { ...testRow('pending','3'), 车辆租赁状态: '4' }, { ...testRow('abnormal','4'), 车辆租赁状态: '14' }];
+  const frozen = freezeRows(rows);
+  assert.deepEqual(counts(frozen), { total:4, operating:2, inventory:2 });
+  assert.equal(frozen[0].id, '9223372036854775000');
+  assert.equal(frozen[2].vehicleStatus, '4');
+  assert.equal(frozen[3].vehicleStatus, '14');
+  assert.equal('abnormalMove' in frozen[0], false);
+  assert.throws(() => freezeRows([testRow('1'),testRow('1')]), /重复/);
+  for (const state of ['5','99','']) assert.throws(() => freezeRows([testRow('bad',state)]), /未分类/);
+});
+test('cutoff switches live to capturing/missing without fallback; a zero snapshot is archived', () => {
+  const live = freezeLive([testVehicle('1')]);
+  assert.equal(makePoint('2026-10', new Date('2026-10-31T08:59:59Z'), undefined, [], live).state, 'LIVE');
+  assert.equal(makePoint('2026-10', new Date('2026-10-31T09:00:00Z'), undefined, [], live).state, 'CAPTURING');
+  const missing = makePoint('2026-10', new Date('2026-10-31T09:01:00Z'), undefined, [], live);
+  assert.equal(missing.state, 'MISSING'); assert.equal(missing.counts, null);
+  const archived = makePoint('2026-10', new Date('2026-10-31T09:00:20Z'), testBatch('2026-10'), [], live);
+  assert.equal(archived.state, 'ARCHIVED'); assert.deepEqual(archived.counts, { total:0,operating:0,inventory:0 });
+  assert.equal(makePoint('2026-11', new Date('2026-10-19T00:00Z')).state, 'FUTURE');
+});
@@ -0,0 +1,84 @@
+import { filterAssetVehiclesByPermission, maskCustomerNames } from '../../auth/permissions.js';
+import type { AuthUser } from '../../auth/types.js';
+import type { Vehicle, VehicleRow } from '../../types.js';
+import { isOperatingVehicle, isInventoryVehicle, transformRow } from '../vehicles/model.js';
+import { CAPTURE_WINDOW_MS, monthCutoff, shanghaiTimestamp, type HistoryCounts, type HistoryPoint } from '../../../shared/assets/history.js';
+
+export interface HistoryVehicle extends Vehicle {
+  vehicleStatus: string | null;
+  disposition: 'operating' | 'inventory';
+}
+export interface HistoryBatch {
+  id: string; month: string; status: 'COMPLETE' | 'FAILED' | 'MISSED';
+  source: 'AUTO' | 'IMPORT'; scheduledFor: string; capturedAt: string | null;
+  counts: HistoryCounts;
+}
+export interface HistorySettings { enabledAt: string }
+export class HistoryDataError extends Error {}
+export class HistoryStorageUnavailable extends Error {}
+
+export function validateVehicles(vehicles: Vehicle[]): void {
+  const ids = new Set<string>();
+  for (const vehicle of vehicles) {
+    if (typeof vehicle.id !== 'string' || !vehicle.id || ids.has(vehicle.id)) throw new HistoryDataError('车辆 ID 缺失或重复，无法生成可信快照');
+    ids.add(vehicle.id);
+    if (!isOperatingVehicle(vehicle) && !isInventoryVehicle(vehicle)) throw new HistoryDataError('存在未分类运营状态，无法生成可信快照');
+  }
+}
+export function freezeRows(rows: VehicleRow[]): HistoryVehicle[] {
+  const vehicles = rows.map(row => {
+    const vehicle = transformRow(row);
+    return { ...vehicle, vehicleStatus: row.车辆租赁状态,
+      disposition: isOperatingVehicle(vehicle) ? 'operating' as const : 'inventory' as const };
+  });
+  validateVehicles(vehicles);
+  // Only freeze fields used by asset history. Movement work/customer attachments are unnecessary.
+  return vehicles.map(({ abnormalMove: _movement, pendingDelivery: _pending, ...vehicle }) => vehicle);
+}
+export function freezeLive(vehicles: Vehicle[]): HistoryVehicle[] {
+  validateVehicles(vehicles);
+  return vehicles.map(({ abnormalMove: _movement, pendingDelivery: _pending, ...v }) => ({ ...v,
+    vehicleStatus: v.vehicleStatus || null, disposition: isOperatingVehicle(v) ? 'operating' : 'inventory' }));
+}
+export function authorizedVehicles(vehicles: HistoryVehicle[], user: AuthUser, subject?: string): HistoryVehicle[] {
+  return maskCustomerNames(filterAssetVehiclesByPermission(vehicles, user).filter(v => !subject || v.subjectOrg === subject));
+}
+export function counts(vehicles: Vehicle[]): HistoryCounts {
+  return { total: vehicles.length, operating: vehicles.filter(isOperatingVehicle).length, inventory: vehicles.filter(isInventoryVehicle).length };
+}
+export function makePoint(month: string, now: Date, batch?: HistoryBatch, data?: HistoryVehicle[], live?: HistoryVehicle[], annual = false): HistoryPoint {
+  const cutoff = monthCutoff(month);
+  let state: HistoryPoint['state'] = 'MISSING';
+  if (cutoff > now) state = month.slice(0, 4) === shanghaiTimestamp(now).slice(0, 4) && (annual || month === shanghaiTimestamp(now).slice(0, 7)) ? 'LIVE' : 'FUTURE';
+  else if (batch?.status === 'COMPLETE') state = 'ARCHIVED';
+  else if (batch?.status === 'FAILED') state = 'FAILED';
+  else if (now.getTime() < cutoff.getTime() + CAPTURE_WINDOW_MS && batch?.status !== 'MISSED') state = 'CAPTURING';
+  const available = state === 'ARCHIVED' || state === 'LIVE';
+  const pointCounts = state === 'ARCHIVED' ? counts(data || []) : state === 'LIVE' ? counts(live || []) : null;
+  return {
+    period: annual ? month.slice(0, 4) : month,
+    label: annual ? `${month.slice(0, 4)}年` : `${Number(month.slice(5))}月`, month,
+    scheduledFor: shanghaiTimestamp(cutoff),
+    asOf: state === 'LIVE' ? shanghaiTimestamp(now) : state === 'ARCHIVED' ? batch!.capturedAt : null,
+    state, source: state === 'LIVE' ? 'LIVE' : state === 'ARCHIVED' ? batch!.source : null,
+    batchId: state === 'ARCHIVED' ? batch!.id : null, counts: pointCounts,
+    difference: null, comparisonLabel: '暂无可比数据', detailAvailable: available,
+  };
+}
+export function comparePoint(point: HistoryPoint, previous: HistoryPoint | undefined, annual: boolean): HistoryPoint {
+  if (point.reconstruction || previous?.reconstruction) {
+    const comparable = point.reconstruction && previous?.reconstruction && point.reconstruction.workbookSha256 === previous.reconstruction.workbookSha256;
+    return { ...point, difference: null,
+      ...(point.reconstruction ? { reconstruction: { ...point.reconstruction, difference: comparable ? {
+        operating: point.reconstruction.operating - previous!.reconstruction!.operating,
+        inventory: point.reconstruction.inventory - previous!.reconstruction!.inventory,
+      } : null } } : {}),
+      comparisonLabel: comparable ? `推算值较${annual ? '上年年末' : '上月末'}` : '推算与实时或正式快照口径不同，暂无可比数据' };
+  }
+  const label = annual ? '上年末' : '上月末';
+  return { ...point, difference: point.counts && previous?.counts ? {
+    total: point.counts.total - previous.counts.total,
+    inventory: point.counts.inventory - previous.counts.inventory,
+    operating: point.counts.operating - previous.counts.operating,
+  } : null, comparisonLabel: point.counts && previous?.counts ? `${point.state === 'LIVE' ? '截至当前' : ''}较${label}` : '暂无可比数据' };
+}
@@ -0,0 +1,87 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { mkdtemp, readFile, rm } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import type { AuthUser } from '../../auth/types.js';
+import { MemoryHistoryReader, testVehicle } from './fixtures.js';
+import { HistoryService, HistoryPeriodUnavailable } from './service.js';
+import { FileReconstructionReader, publishReconstruction, reconstructionPoint, validateReconstruction, type ReconstructionData } from './reconstruction.js';
+
+const user = (permissionLevel: AuthUser['permissionLevel'] = 'full'): AuthUser => ({ userId:'1',userName:'测试',loginName:'test',depName:'甲',depCode:'a',permissionLevel,roles:[] });
+const now = () => new Date('2026-10-19T14:38:33+08:00');
+const data = (): ReconstructionData => ({ schemaVersion:1,method:'HANDOVER_REVIEW_V1',workbookSha256:'a'.repeat(64),sourceAsOf:'2026-10-19T14:38:33+08:00',sourceReference:'测试核对表.xlsx',
+  periods:[{month:'2026-08',operating:1,inventory:0,unclassified:2,currentlyExited:1,vehicles:[{id:'90071992547409931',plateNumber:'历史车牌',vin:'OLDVIN',disposition:'operating',basis:'交车 D:1，2026-08-01 10:00:00'}]},
+    {month:'2026-09',operating:0,inventory:1,unclassified:2,currentlyExited:1,vehicles:[{id:'90071992547409931',plateNumber:'历史车牌',vin:'OLDVIN',disposition:'inventory',basis:'还车 R:2，2026-09-01 10:00:00'}]}] });
+function setup(value = data()) {
+  const store = new MemoryHistoryReader(); let reads = 0;
+  const service = new HistoryService(store,async()=>[testVehicle('today')],now,{read:async()=>{reads++;return value;}});
+  return { store,service,reads:()=>reads };
+}
+test('reconstruction preserves unknown total, source date and string IDs without claiming a captured snapshot', async()=>{
+  const {service}=setup(); const trend=await service.trend(user(),{year:'2026'});
+  const p=trend.points[8];
+  assert.equal(p.state,'RECONSTRUCTED');assert.equal(p.counts,null);assert.equal(p.asOf,null);
+  assert.equal(p.reconstruction!.operating,0);assert.equal(p.reconstruction!.inventory,1);
+  assert.deepEqual(p.reconstruction!.difference,{operating:-1,inventory:1});
+  assert.equal(trend.points[7].reconstruction!.difference,null);
+  assert.equal(trend.points[9].state,'LIVE');assert.equal(trend.points[9].difference,null);
+  assert.equal(trend.points[10].state,'FUTURE');
+  const detail=await service.details(user(),{month:'2026-09',batchId:p.batchId!});
+  assert.equal(detail.counts,null);assert.equal(detail.items[0].id,'90071992547409931');
+  assert.equal(detail.items[0].plateNumber,'历史车牌');assert.equal(detail.items[0].subjectOrg,null);
+  assert.equal(detail.items[0].operationStatus,null);assert.equal(detail.items[0].customerName,null);
+  assert.match(detail.items[0].reconstructionBasis!,/R:2/);
+});
+test('company/department/personal scopes cannot load or query unowned reconstruction rows', async()=>{
+  for(const [level,params] of [['department',{}],['personal',{}],['full',{subject:'任意公司'}]] as const){
+    const {service,reads}=setup();const identity=user(level);
+    const trend=await service.trend(identity,{year:'2026',...params});assert.equal(trend.points[8].state,'MISSING');
+    await assert.rejects(()=>service.details(identity,{month:'2026-09',batchId:`rec-${'a'.repeat(12)}-2026-09`,...params}),HistoryPeriodUnavailable);
+    assert.equal(reads(),0);
+  }
+});
+test('formal archives take precedence and forged or stale reconstruction batch IDs are refused',async()=>{
+  const {service,store}=setup();store.add('2026-09',[testVehicle('formal')]);
+  const trend=await service.trend(user(),{});assert.equal(trend.points[8].state,'ARCHIVED');assert.equal(trend.points[8].reconstruction,undefined);
+  await assert.rejects(()=>service.details(user(),{month:'2026-09',batchId:`rec-${'a'.repeat(12)}-2026-09`}),HistoryPeriodUnavailable);
+  await assert.rejects(()=>service.details(user(),{month:'2026-08',batchId:'rec-forged'}),HistoryPeriodUnavailable);
+  assert.equal((await service.details(user(),{month:'2026-09'})).items[0].id,'formal');
+});
+test('reconstructed category/search/pagination counts agree with the selected period; missing months stay absent',async()=>{
+  const value=data();value.periods[1].vehicles=Array.from({length:61},(_,i)=>({id:String(i+1),plateNumber:`历史${i}`,vin:`OLD${i}`,disposition:'inventory',basis:'还车 R:1'}));value.periods[1].inventory=61;
+  const {service}=setup(value);
+  const all=await service.details(user(),{month:'2026-09',page:'2',pageSize:'30'});assert.equal(all.total,61);assert.equal(all.items.length,30);
+  assert.equal((await service.details(user(),{month:'2026-09',category:'operating'})).total,0);
+  assert.equal((await service.details(user(),{month:'2026-09',search:'OLD60'})).total,1);
+  assert.equal((await service.trend(user(),{})).points[6].state,'MISSING');
+});
+test('annual estimates reuse December only; no sum, current-month replacement, or cross-source difference',async()=>{
+  const value=data();value.periods.push({...value.periods[0],month:'2025-12'});
+  const {service}=setup(value);const result=await service.trend(user(),{mode:'annual'});
+  assert.equal(result.points.find(p=>p.period==='2025')!.reconstruction!.operating,1);
+  assert.equal(result.points.find(p=>p.period==='2026')!.state,'LIVE');assert.equal(result.points.at(-1)!.difference,null);
+  assert.equal(reconstructionPoint(value,'2026-10',false,now()),null);
+});
+test('schema rejects duplicates, unsafe IDs, invented counts, current/future months and missing provenance',()=>{
+  const mutate=[(d:ReconstructionData)=>{d.periods.push(d.periods[0]);},(d:ReconstructionData)=>{d.periods[0].vehicles[0].id=1 as never;},
+    (d:ReconstructionData)=>{d.periods[0].operating=99;},(d:ReconstructionData)=>{d.periods[0].month='2026-10';},
+    (d:ReconstructionData)=>{d.workbookSha256='';},(d:ReconstructionData)=>{d.periods[0].vehicles.push(d.periods[0].vehicles[0]);d.periods[0].operating=2;},
+    (d:ReconstructionData)=>{d.periods[0].unclassified=-1;}];
+  for(const change of mutate){const d=data();change(d);assert.throws(()=>validateReconstruction(d),/无效/);}
+  const d=data();Object.assign(d.periods[0].vehicles[0],{subjectOrg:'今日主体',customerName:'不应导入的客户'});
+  assert.equal(JSON.stringify(validateReconstruction(d)).includes('今日主体'),false);
+  const zero=data();zero.periods[0]={month:'2026-08',operating:0,inventory:0,unclassified:3,currentlyExited:0,vehicles:[]};
+  assert.equal(reconstructionPoint(validateReconstruction(zero),'2026-08',false,now())!.reconstruction!.operating,0);
+});
+test('explicit local publication is atomic, idempotent and immutable; reader has no database dependencies',async()=>{
+  const dir=await mkdtemp(join(tmpdir(),'asset-reconstruction-'));
+  try{
+    const path=join(dir,'history.json');const value=data();
+    const results=await Promise.all([publishReconstruction(path,value),publishReconstruction(path,value)]);
+    assert.deepEqual(results.sort(),['created','unchanged']);
+    const before=await readFile(path,'utf8');const different=data();different.workbookSha256='b'.repeat(64);
+    await assert.rejects(()=>publishReconstruction(path,different),/禁止自动覆盖/);assert.equal(await readFile(path,'utf8'),before);
+    assert.deepEqual(await new FileReconstructionReader(path).read(),validateReconstruction(value));
+  }finally{await rm(dir,{recursive:true,force:true});}
+});
@@ -0,0 +1,86 @@
+import { readFile, writeFile, link, unlink, mkdir } from 'node:fs/promises';
+import { dirname } from 'node:path';
+import { randomUUID } from 'node:crypto';
+import { monthCutoff, shanghaiTimestamp, type HistoryDetailItem, type HistoryPoint } from '../../../shared/assets/history.js';
+
+export interface ReconstructionPeriod {
+  month: string; operating: number; inventory: number; unclassified: number; currentlyExited: number;
+  vehicles: { id: string; plateNumber: string; vin: string; disposition: 'operating' | 'inventory'; basis: string }[];
+}
+export interface ReconstructionData {
+  schemaVersion: 1; method: 'HANDOVER_REVIEW_V1'; workbookSha256: string;
+  sourceAsOf: string; sourceReference: string; periods: ReconstructionPeriod[];
+}
+export function validateReconstruction(input: unknown): ReconstructionData {
+  const fail = (): never => { throw new Error('历史回溯文件无效，未加载任何回填数据'); };
+  if (!input || typeof input !== 'object') return fail();
+  const data = input as ReconstructionData;
+  if (data.schemaVersion !== 1 || data.method !== 'HANDOVER_REVIEW_V1' || !/^[a-f0-9]{64}$/.test(data.workbookSha256) ||
+      typeof data.sourceReference !== 'string' || !data.sourceReference.trim() || data.sourceReference.length > 200 ||
+      !/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d{3})?\+08:00$/.test(data.sourceAsOf) || !Number.isFinite(Date.parse(data.sourceAsOf)) ||
+      !Array.isArray(data.periods) || data.periods.length > 1200) return fail();
+  const months = new Set<string>();
+  for (const period of data.periods) {
+    if (!period || !/^20\d{2}-(0[1-9]|1[0-2])$/.test(period.month) || months.has(period.month) || monthCutoff(period.month).getTime() >= Date.parse(data.sourceAsOf) ||
+        ![period.operating, period.inventory, period.unclassified, period.currentlyExited].every(v => Number.isSafeInteger(v) && v >= 0) ||
+        period.currentlyExited > period.operating + period.inventory || !Array.isArray(period.vehicles) || period.vehicles.length !== period.operating + period.inventory) return fail();
+    months.add(period.month);
+    const ids = new Set<string>(); let operating = 0;
+    for (const v of period.vehicles) {
+      if (!v || typeof v.id !== 'string' || !/^[1-9]\d{0,63}$/.test(v.id) || ids.has(v.id) || !['operating', 'inventory'].includes(v.disposition) ||
+          typeof v.plateNumber !== 'string' || v.plateNumber.length > 100 || typeof v.vin !== 'string' || v.vin.length > 100 ||
+          typeof v.basis !== 'string' || !v.basis.trim() || v.basis.length > 1000) return fail();
+      ids.add(v.id); if (v.disposition === 'operating') operating++;
+    }
+    if (operating !== period.operating) return fail();
+  }
+  // Return only reviewed fields. Ignore any attempted current company/customer/role injection.
+  return { schemaVersion: 1, method: data.method, workbookSha256: data.workbookSha256, sourceAsOf: data.sourceAsOf, sourceReference: data.sourceReference,
+    periods: data.periods.map(p => ({ month: p.month, operating: p.operating, inventory: p.inventory, unclassified: p.unclassified, currentlyExited: p.currentlyExited,
+      vehicles: p.vehicles.map(v => ({ id: v.id, plateNumber: v.plateNumber, vin: v.vin, disposition: v.disposition, basis: v.basis })) })) };
+}
+
+export interface ReconstructionReader { read(): Promise<ReconstructionData> }
+/** Opt-in, immutable local file. Reading never creates storage or writes a database. */
+export class FileReconstructionReader implements ReconstructionReader {
+  private loaded?: Promise<ReconstructionData>;
+  constructor(private readonly path: string) {}
+  read() {
+    this.loaded ||= readFile(this.path, 'utf8').then(text => {
+      if (text.length > 50_000_000) throw new Error('历史回溯文件超出限制');
+      return validateReconstruction(JSON.parse(text));
+    });
+    return this.loaded;
+  }
+}
+
+/** Explicit local publication only: create atomically; never replace a different revision. */
+export async function publishReconstruction(path: string, input: unknown): Promise<'created' | 'unchanged'> {
+  const text = JSON.stringify(validateReconstruction(input));
+  await mkdir(dirname(path), { recursive: true });
+  const temporary = `${path}.${randomUUID()}.tmp`;
+  await writeFile(temporary, text, { flag: 'wx', mode: 0o600 });
+  try {
+    try { await link(temporary, path); return 'created'; }
+    catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== 'EEXIST') throw error;
+      if (await readFile(path, 'utf8') === text) return 'unchanged';
+      throw new Error('目标已有不同版本的回溯数据，禁止自动覆盖');
+    }
+  } finally { await unlink(temporary); }
+}
+
+export function reconstructionPoint(data: ReconstructionData, month: string, annual: boolean, now: Date): HistoryPoint | null {
+  const period = data.periods.find(p => p.month === month);
+  if (!period || monthCutoff(month) >= now) return null;
+  return { period: annual ? month.slice(0, 4) : month, label: annual ? `${month.slice(0, 4)}年` : `${Number(month.slice(5))}月`, month,
+    scheduledFor: shanghaiTimestamp(monthCutoff(month)), asOf: null, state: 'RECONSTRUCTED', source: 'RECONSTRUCTED',
+    batchId: `rec-${data.workbookSha256.slice(0, 12)}-${month}`, counts: null, difference: null, comparisonLabel: '暂无可比数据', detailAvailable: true,
+    reconstruction: { operating: period.operating, inventory: period.inventory, unclassified: period.unclassified,
+      currentlyExited: period.currentlyExited, sourceAsOf: data.sourceAsOf, sourceReference: data.sourceReference, workbookSha256: data.workbookSha256, difference: null } };
+}
+export function reconstructionItems(period: ReconstructionPeriod): HistoryDetailItem[] {
+  return period.vehicles.map(v => ({ id: v.id, plateNumber: v.plateNumber, vin: v.vin, disposition: v.disposition,
+    type: '', model: '', operationStatus: null, vehicleStatus: null, subjectOrg: null, departmentName: null,
+    customerManager: null, customerName: null, contractNo: null, reconstructionBasis: v.basis }));
+}
@@ -0,0 +1,9 @@
+import { historyStore } from './index.js';
+import { HistoryScheduler } from './scheduler.js';
+
+let scheduler: HistoryScheduler | undefined;
+export function startAssetHistoryScheduler(): void {
+  if (process.env.ASSET_HISTORY_CAPTURE_ENABLED !== '1' || scheduler) return;
+  scheduler = new HistoryScheduler(historyStore);
+  scheduler.start();
+}
@@ -0,0 +1,42 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { HistoryScheduler, type HistoryCaptureStore } from './scheduler.js';
+import { testBatch } from './fixtures.js';
+function fixture(enabledAt='2026-10-19T13:00:00+08:00') {
+  const captures:string[]=[],missed:string[]=[],failed:string[]=[];
+  let activates=0;
+  const store:HistoryCaptureStore={
+    activate:async()=>{activates++;return{enabledAt};},batches:async()=>[],
+    capture:async(month)=>{captures.push(month);return'captured';},
+    recordOutcome:async(month,status)=>{(status==='FAILED'?failed:missed).push(month);},
+  };
+  return {store,captures,missed,failed,activates:()=>activates};
+}
+test('scheduler captures only in month-end 17:00 minute and activation is persisted once',async()=>{
+  const f=fixture();let date=new Date('2026-10-31T16:59:59+08:00');
+  const scheduler=new HistoryScheduler(f.store,()=>date,()=>{});
+  await scheduler.tick();assert.deepEqual(f.captures,[]);
+  date=new Date('2026-10-31T17:00:00+08:00');await scheduler.tick();assert.deepEqual(f.captures,['2026-10']);assert.equal(f.activates(),1);
+});
+test('restart records missed eligible months without backfilling old live data or pre-activation periods',async()=>{
+  const f=fixture();const scheduler=new HistoryScheduler(f.store,()=>new Date('2027-01-15T08:00:00+08:00'),()=>{});
+  await scheduler.tick();assert.deepEqual(f.captures,[]);assert.deepEqual(f.missed,['2026-10','2026-11','2026-12']);
+  const late=fixture('2026-10-31T17:00:10+08:00');await new HistoryScheduler(late.store,()=>new Date('2026-10-31T17:00:20+08:00'),()=>{}).tick();
+  assert.deepEqual(late.captures,[]);assert.deepEqual(late.missed,[]);
+});
+test('completed December skips duplicate annual capture; failures stay marked without late retries',async()=>{
+  const f=fixture();f.store.batches=async()=>[testBatch('2026-10')];
+  f.store.capture=async()=>{throw new Error('source unavailable');};
+  await new HistoryScheduler(f.store,()=>new Date('2026-12-31T17:00:20+08:00'),()=>{}).tick();
+  assert.deepEqual(f.missed,['2026-11']);assert.deepEqual(f.failed,['2026-12']);
+  const done=fixture('2026-12-01T00:00+08:00');done.store.batches=async()=>[testBatch('2026-12')];
+  await new HistoryScheduler(done.store,()=>new Date('2026-12-31T17:00:20+08:00'),()=>{}).tick();assert.deepEqual(done.captures,[]);
+});
+test('concurrent ticks and repeated start do not register duplicate jobs',async()=>{
+  const f=fixture();let release!:()=>void;
+  f.store.capture=async()=>{f.captures.push('2026-10');await new Promise<void>(r=>{release=r;});return'captured';};
+  const scheduler=new HistoryScheduler(f.store,()=>new Date('2026-10-31T17:00:20+08:00'),()=>{});
+  const stop=scheduler.start();scheduler.start();
+  await new Promise<void>(r=>setImmediate(r));await scheduler.tick();assert.equal(f.captures.length,1);
+  stop();release();await new Promise<void>(r=>setImmediate(r));
+});
@@ -0,0 +1,61 @@
+import { CAPTURE_WINDOW_MS, monthCutoff, shanghaiMonth, shiftMonth } from '../../../shared/assets/history.js';
+import type { CaptureResult } from './store.js';
+import { HistoryDataError, type HistoryBatch, type HistorySettings } from './model.js';
+
+export interface HistoryCaptureStore {
+  activate(now: Date): Promise<HistorySettings>;
+  batches(): Promise<HistoryBatch[]>;
+  capture(month: string, clock: () => Date): Promise<CaptureResult>;
+  recordOutcome(month: string, status: 'MISSED' | 'FAILED', code: string): Promise<void>;
+}
+export class HistoryScheduler {
+  private timer: ReturnType<typeof setTimeout> | undefined;
+  private running = false;
+  private ticking = false;
+  private settings: HistorySettings | null = null;
+  constructor(private readonly store: HistoryCaptureStore, private readonly clock: () => Date = () => new Date(),
+    private readonly log: (message: string) => void = console.log) {}
+
+  /** Exported for deterministic testing and explicit operational checks; never mounted as HTTP write. */
+  async tick(): Promise<void> {
+    if (this.ticking) return;
+    this.ticking = true;
+    try {
+      const now = this.clock();
+      this.settings ||= await this.store.activate(now);
+      const enabled = new Date(this.settings.enabledAt);
+      const existing = new Map((await this.store.batches()).map(b => [b.month, b]));
+      for (let month = shanghaiMonth(enabled); month <= shanghaiMonth(now); month = shiftMonth(month, 1)) {
+        const cutoff = monthCutoff(month);
+        if (cutoff < enabled || cutoff > now || existing.get(month)?.status === 'COMPLETE') continue;
+        if (now.getTime() >= cutoff.getTime() + CAPTURE_WINDOW_MS) {
+          if (!existing.has(month)) { await this.store.recordOutcome(month, 'MISSED', 'CAPTURE_WINDOW_MISSED'); this.log(`[asset-history] missed ${month}`); }
+          continue;
+        }
+        try { const result = await this.store.capture(month, this.clock); this.log(`[asset-history] ${month}: ${result}`); }
+        catch (error) {
+          const databaseCode = (error as { code?: unknown })?.code;
+          const code = error instanceof HistoryDataError ? 'INVALID_VEHICLE_DATA' : typeof databaseCode === 'string' && /^[A-Z0-9_]{1,48}$/.test(databaseCode) ? databaseCode : 'CAPTURE_FAILED';
+          await this.store.recordOutcome(month, 'FAILED', code);
+          this.log(`[asset-history] failed ${month} (${code}); no later live data will be substituted`);
+        }
+      }
+    } finally { this.ticking = false; }
+  }
+  start(): () => void {
+    if (this.running) return () => this.stop();
+    this.running = true;
+    const run = async () => {
+      if (!this.running) return;
+      try { await this.tick(); } catch { this.log('[asset-history] scheduler unavailable; check migration and database access'); }
+      if (!this.running) return;
+      const now = this.clock();
+      const untilCutoff = monthCutoff(shanghaiMonth(now)).getTime() - now.getTime();
+      this.timer = setTimeout(run, untilCutoff > 0 ? Math.min(untilCutoff, 60_000) : 15_000);
+      this.timer.unref?.();
+    };
+    void run();
+    return () => this.stop();
+  }
+  stop(): void { this.running = false; clearTimeout(this.timer); }
+}
@@ -0,0 +1,119 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { Hono } from 'hono';
+import type { AuthUser } from '../../auth/types.js';
+import { createPreviewMiddleware } from '../../auth/preview/routes.js';
+import { createHistoryRouter } from './index.js';
+import { HistoryService, HistoryInputError, HistoryPeriodUnavailable } from './service.js';
+import { HistoryStorageUnavailable } from './model.js';
+import { MemoryHistoryReader, testVehicle } from './fixtures.js';
+
+const user = (permissionLevel: AuthUser['permissionLevel'] = 'full'): AuthUser => ({ userId:'manager-a',loginName:'a',userName:'甲',depCode:'a',depName:'部门甲',permissionLevel,roles:[] });
+const now = () => new Date('2026-10-19T13:00:00+08:00');
+const inventory = testVehicle('stock',{ operationStatus:'3',status:'Abnormal',departmentName:'部门乙',managerId:'manager-b',subjectOrg:'历史公司' });
+const leased = testVehicle('own');
+const foreign = testVehicle('foreign',{ managerId:'manager-b',departmentName:'部门乙' });
+function setup() {
+  const store = new MemoryHistoryReader(); store.add('2026-09',[leased,foreign,inventory]);
+  const live = [testVehicle('today'), testVehicle('today-stock',{ operationStatus:'4',status:'Pending' })];
+  return { store, live, service:new HistoryService(store,async()=>live,now) };
+}
+test('monthly holes/future remain null; current values are real; comparisons never skip missing periods', async () => {
+  const {store,service}=setup(); store.add('2026-07',[leased]);
+  const result=await service.trend(user(),{year:'2026'});
+  assert.equal(result.points.length,12);
+  assert.deepEqual(result.points[8].counts,{total:3,operating:2,inventory:1});
+  assert.equal(result.points[8].difference,null); // August is missing, July cannot substitute.
+  assert.deepEqual(result.points[9].difference,{total:-1,operating:-1,inventory:0});
+  assert.equal(result.points[9].state,'LIVE'); assert.equal(result.points[0].counts,null);
+  assert.equal(result.points[10].state,'FUTURE'); assert.equal(result.points[10].counts,null);
+  assert.ok(result.subjects.includes('历史公司'));
+});
+test('annual counts use only December snapshots, not a sum of months', async () => {
+  const {store,service}=setup(); store.add('2025-12',[leased]); store.add('2025-11',[leased,foreign,inventory]);
+  const result=await service.trend(user(),{mode:'annual'});
+  assert.deepEqual(result.points.find(p=>p.period==='2025')!.counts,{total:1,operating:1,inventory:0});
+  assert.equal(result.points.at(-1)!.state,'LIVE');
+  assert.deepEqual(result.points.at(-1)!.difference,{total:1,operating:0,inventory:1});
+});
+test('full/department/personal and manager aliases share snapshot/live public inventory policy', async () => {
+  const {service}=setup();
+  for (const level of ['full','department','personal'] as const) {
+    const result=await service.trend(user(level),{});
+    const september=result.points[8];
+    assert.equal(september.counts!.total,level==='full'?3:2);
+    const detail=await service.details(user(level),{month:'2026-09'});
+    assert.equal(detail.total,september.counts!.total); assert.deepEqual(detail.counts,september.counts);
+    assert.ok(detail.items.some(v=>v.id==='stock'));
+    assert.equal(detail.items.some(v=>v.id==='foreign'),level==='full');
+    assert.ok(!JSON.stringify(detail).includes('测试客户公司'));
+  }
+  const alias={...user('personal'),userId:'new-id',managerIds:['manager-a']};
+  assert.equal((await service.details(alias,{month:'2026-09'})).total,2);
+});
+test('company filter intersects permission; foreign batch IDs cannot bypass month or identity', async () => {
+  const {service}=setup();
+  const trend=await service.trend(user('personal'),{subject:'历史公司'});
+  assert.deepEqual(trend.points[8].counts,{total:1,operating:0,inventory:1});
+  assert.equal((await service.details(user('personal'),{month:'2026-09',subject:'公司甲'})).total,1);
+  assert.equal((await service.details(user('personal'),{month:'2026-09',subject:'任意公司'})).total,0);
+  await assert.rejects(()=>service.details(user(),{month:'2026-09',batchId:'other-batch'}),HistoryPeriodUnavailable);
+});
+test('historical vehicles survive current deletion, reassignment and exit without any live join', async () => {
+  const {store}=setup(); let calls=0;
+  const service=new HistoryService(store,async()=>{calls++;throw new Error('live must not be read');},now);
+  const result=await service.details(user('personal'),{month:'2026-09'});
+  assert.deepEqual(result.items.map(v=>v.id).sort(),['own','stock']);
+  assert.equal(calls,0);
+  assert.equal((await service.trend(user(),{year:'2025'})).points.every(p=>p.state==='MISSING'),true);
+  assert.equal(calls,0);
+});
+test('pagination/search/category use authorized snapshot only, keeping unsearched counts intact', async () => {
+  const {store,service}=setup();store.add('2026-08',Array.from({length:65},(_,i)=>testVehicle(String(i))));
+  const detail=await service.details(user(),{month:'2026-08',page:'2',pageSize:'30'});
+  assert.equal(detail.total,65);assert.equal(detail.items.length,30);assert.equal(detail.counts!.total,65);
+  const filtered=await service.details(user(),{month:'2026-09',category:'inventory',search:'TESTVINstock'});
+  assert.equal(filtered.total,1);assert.equal(filtered.counts!.total,3);
+});
+test('missing storage degrades to live without any DDL; genuine database errors are not hidden', async () => {
+  const {store,live}=setup();store.settings=async()=>{throw new HistoryStorageUnavailable();};store.batches=async()=>{throw new HistoryStorageUnavailable();};
+  const service=new HistoryService(store,async()=>live,now);
+  const result=await service.trend(user(),{});assert.equal(result.storageReady,false);assert.equal(result.points[9].counts!.total,2);assert.equal(result.points[8].counts,null);
+  await assert.rejects(()=>service.details(user(),{month:'2026-09'}),HistoryPeriodUnavailable);
+  store.batches=async()=>{throw new Error('database offline');};await assert.rejects(()=>service.trend(user(),{}),/offline/);
+});
+test('once cutoff passes live values cannot replace missing history, even when capture was not enabled', async () => {
+  const {store}=setup();store.settingsValue=null;let liveCalls=0;
+  const service=new HistoryService(store,async()=>{liveCalls++;return[leased];},()=>new Date('2026-10-31T17:00:30+08:00'));
+  const result=await service.trend(user(),{});assert.equal(result.points[9].state,'MISSING');assert.equal(result.points[9].counts,null);
+  assert.equal(liveCalls,0);await assert.rejects(()=>service.details(user(),{month:'2026-10'}),HistoryPeriodUnavailable);
+});
+test('snapshot count integrity failure never appears as a legitimate zero', async () => {
+  const {store,service}=setup();store.rows.clear();await assert.rejects(()=>service.trend(user(),{}),/integrity/);
+});
+test('invalid parameters fail before querying details or live; valid archived zero retains detail access', async () => {
+  const {store,service}=setup();store.add('2026-08',[]);
+  assert.equal((await service.details(user(),{month:'2026-08'})).total,0);
+  for(const params of [{year:'NaN'},{year:'2027'},{mode:'weekly'}] as Record<string,string>[]) await assert.rejects(()=>service.trend(user(),params),HistoryInputError);
+  for(const params of [{month:'2026-13'},{month:'2026-09',page:'0'},{month:'2026-09',pageSize:'101'},{month:'2026-09',category:'hacked'}] as Record<string,string>[]) await assert.rejects(()=>service.details(user(),params),HistoryInputError);
+});
+test('HTTP router authenticates, validates and exposes only read routes with private no-store', async () => {
+  const {service}=setup();const router=createHistoryRouter(service);
+  assert.equal((await router.request('/trend')).status,401);
+  const app=new Hono<{Variables:{user:AuthUser}}>();app.use('*',async(c,next)=>{c.set('user',user('personal'));await next();});app.route('/',router);
+  const response=await app.request('/trend?year=2026');assert.equal(response.status,200);assert.match(response.headers.get('Cache-Control')!,/private.*no-store/);
+  assert.equal((await app.request('/details?month=2026-08')).status,409);
+  assert.equal((await app.request('/trend?year=x')).status,400);
+  assert.equal((await app.request('/details?month=2026-09&batchId=forged')).status,409);
+  assert.equal((await app.request('/capture',{method:'POST'})).status,404);
+});
+test('permission-preview identity applies to history GET; capture/import writes remain blocked', async () => {
+  const {service}=setup();const audit:string[]=[];
+  const preview={current:async()=>({user:user('personal'),sessionId:'test-session'}),audit:async(event:{event:string})=>{audit.push(event.event);}};
+  const app=new Hono<{Variables:{user:AuthUser}}>();app.use('*',async(c,next)=>{c.set('user',user());await next();});
+  app.use('*',createPreviewMiddleware(preview as never));app.route('/api/asset-history',createHistoryRouter(service));
+  const response=await app.request('/api/asset-history/details?month=2026-09',{headers:{'X-BI-Preview':'isolated-test'}});
+  assert.equal(response.status,200);assert.equal((await response.json()).total,2);
+  assert.equal((await app.request('/api/asset-history/import',{method:'POST',headers:{'X-BI-Preview':'isolated-test'}})).status,403);
+  assert.deepEqual(audit,['read','blocked-write']);
+});
@@ -0,0 +1,126 @@
+import type { AuthUser } from '../../auth/types.js';
+import type { Vehicle } from '../../types.js';
+import { isOperatingVehicle } from '../vehicles/model.js';
+import { HISTORY_STATE_LABELS, nextCapture, shanghaiMonth, shiftMonth, monthCutoff, type HistoryMode, type HistoryTrend, type HistoryCategory, type HistoryDetails } from '../../../shared/assets/history.js';
+import { authorizedVehicles, comparePoint, counts, freezeLive, HistoryStorageUnavailable, makePoint, validateVehicles, type HistoryBatch, type HistorySettings, type HistoryVehicle } from './model.js';
+import type { HistoryReader } from './store.js';
+import { reconstructionItems, reconstructionPoint, type ReconstructionReader } from './reconstruction.js';
+
+export class HistoryInputError extends Error {}
+export class HistoryPeriodUnavailable extends Error {}
+export function parseHistoryQuery(params: Record<string, string>, now: Date) {
+  const mode = params.mode || 'monthly';
+  const year = Number(params.year || shanghaiMonth(now).slice(0, 4));
+  if (!['monthly', 'annual'].includes(mode) || !Number.isInteger(year) || year < 2000 || year > Number(shanghaiMonth(now).slice(0, 4))) throw new HistoryInputError('年份或统计方式无效');
+  if ((params.subject || '').length > 500) throw new HistoryInputError('公司筛选无效');
+  return { mode: mode as HistoryMode, year, subject: params.subject?.trim() || undefined };
+}
+export class HistoryService {
+  constructor(private readonly store: HistoryReader, private readonly live: () => Promise<Vehicle[]>, private readonly clock: () => Date = () => new Date(), private readonly reconstruction?: ReconstructionReader) {}
+
+  private async reconstructionData(user: AuthUser, subject?: string) {
+    // These reviewed records have no trustworthy historical owner/dept/company.
+    // Never grant their visibility from today's vehicle IDs or company values.
+    return this.reconstruction && user.permissionLevel === 'full' && !subject ? this.reconstruction.read() : null;
+  }
+
+  async livePoint(user: AuthUser, params: Record<string, string>) {
+    const now = this.clock();
+    const query = parseHistoryQuery(params, now);
+    const month = query.mode === 'annual' ? `${shanghaiMonth(now).slice(0, 4)}-12` : shanghaiMonth(now);
+    const rows = now < monthCutoff(month) ? authorizedVehicles(freezeLive(await this.live()), user, query.subject) : [];
+    return makePoint(month, now, undefined, [], rows, query.mode === 'annual');
+  }
+
+  private async archives(months: string[], catalog?: HistoryBatch[]) {
+    let settings: HistorySettings | null = null;
+    let batches: HistoryBatch[] = [];
+    try {
+      [settings, batches] = await Promise.all([this.store.settings(), catalog ? Promise.resolve(catalog) : this.store.batches()]);
+      const selected = batches.filter(b => b.status === 'COMPLETE' && months.includes(b.month));
+      const vehicles = await this.store.vehicles(selected.map(b => b.id));
+      for (const batch of selected) {
+        const rows = vehicles.get(batch.id) || [];
+        validateVehicles(rows);
+        const totals = counts(rows);
+        if (!batch.capturedAt || Object.entries(totals).some(([key, value]) => value !== batch.counts[key as keyof typeof totals]) || rows.some(v => v.disposition !== (isOperatingVehicle(v) ? 'operating' : 'inventory'))) throw new Error('Snapshot integrity mismatch');
+      }
+      return { settings, batches, vehicles, ready: true };
+    } catch (error) {
+      if (!(error instanceof HistoryStorageUnavailable)) throw error;
+      return { settings: null, batches: [], vehicles: new Map<string, HistoryVehicle[]>(), ready: false };
+    }
+  }
+  async trend(user: AuthUser, params: Record<string, string>): Promise<HistoryTrend> {
+    const now = this.clock();
+    const query = parseHistoryQuery(params, now);
+    const currentYear = Number(shanghaiMonth(now).slice(0, 4));
+    const reconstruction = await this.reconstructionData(user, query.subject);
+    // Metadata is small (one batch/month); only relevant detail batches are loaded.
+    let catalog: HistoryBatch[] = [];
+    try { catalog = await this.store.batches(); } catch (e) { if (!(e instanceof HistoryStorageUnavailable)) throw e; }
+    const firstYear = Math.min(currentYear - 4, query.year, ...catalog.map(b => Number(b.month.slice(0, 4))), ...(reconstruction?.periods.map(p => Number(p.month.slice(0, 4))) || []));
+    const years = Array.from({ length: currentYear - firstYear + 1 }, (_, i) => currentYear - i);
+    const months = query.mode === 'monthly'
+      ? Array.from({ length: 12 }, (_, i) => `${query.year}-${String(i + 1).padStart(2, '0')}`)
+      : [...years].reverse().map(y => `${y}-12`);
+    const previous = query.mode === 'monthly' ? shiftMonth(months[0], -1) : `${firstYear - 1}-12`;
+    const range = [previous, ...months];
+    const hasLive = months.some(m => monthCutoff(m) > now && (query.mode === 'annual' ? m.startsWith(String(currentYear)) : m === shanghaiMonth(now)));
+    const [archive, rawLive] = await Promise.all([this.archives(range, catalog), hasLive ? this.live() : Promise.resolve([])]);
+    const live = freezeLive(rawLive);
+    const subjects = new Set(authorizedVehicles(live, user).map(v => v.subjectOrg).filter((s): s is string => !!s));
+    const byMonth = new Map(archive.batches.map(batch => [batch.month, batch]));
+    for (const rows of archive.vehicles.values()) for (const v of authorizedVehicles(rows, user)) if (v.subjectOrg) subjects.add(v.subjectOrg);
+    const points = range.map(month => {
+      const batch = byMonth.get(month);
+      const rows = batch?.status === 'COMPLETE' ? archive.vehicles.get(batch.id)! : [];
+      const point = makePoint(month, now, batch, authorizedVehicles(rows, user, query.subject), authorizedVehicles(live, user, query.subject), query.mode === 'annual');
+      if (point.state === 'CAPTURING' && (!archive.settings || new Date(archive.settings.enabledAt) > monthCutoff(month))) point.state = 'MISSING';
+      if (point.state === 'MISSING' && reconstruction) return reconstructionPoint(reconstruction, month, query.mode === 'annual', now) || point;
+      return point;
+    });
+    return { mode: query.mode, year: query.year, points: points.slice(1).map((p, i) => comparePoint(p, points[i], query.mode === 'annual')),
+      years, subjects: [...subjects].sort((a, b) => a.localeCompare(b, 'zh-CN')), storageReady: archive.ready,
+      enabledAt: archive.settings?.enabledAt || null, nextCaptureAt: archive.settings ? nextCapture(now) : null,
+      warning: [!archive.ready ? '正式历史快照存储尚未部署。' : !archive.settings ? '自动采集尚未启用。' : null,
+        this.reconstruction ? reconstruction ? '历史空白已按核对表回填业务推算值；历史总数待核实，不属于月末正式快照。回溯数据仅支持全量权限及全部公司。'
+          : '回溯估算缺少可靠历史主体和权限归属，仅全量权限在全部公司下可见；当前筛选保留正式快照或空白。' : '未采集历史期间留空。'].filter(Boolean).join(' ') || null };
+  }
+  async details(user: AuthUser, params: Record<string, string>): Promise<HistoryDetails> {
+    const now = this.clock();
+    const month = params.month || '';
+    if (!/^(20\d{2})-(0[1-9]|1[0-2])$/.test(month)) throw new HistoryInputError('月份无效');
+    parseHistoryQuery({ ...params, year: month.slice(0, 4) }, now);
+    const category = params.category || 'all';
+    const page = Number(params.page || '1'), pageSize = Number(params.pageSize || '50');
+    if (!['all', 'operating', 'inventory'].includes(category) || !Number.isSafeInteger(page) || page < 1 || page > 100000 || !Number.isSafeInteger(pageSize) || pageSize < 1 || pageSize > 100 || (params.search || '').length > 100 || (params.batchId || '').length > 36) throw new HistoryInputError('明细筛选或分页参数无效');
+    const archive = await this.archives([month]);
+    const batch = archive.batches.find(b => b.month === month);
+    const isCurrent = month === shanghaiMonth(now) && now < monthCutoff(month);
+    if (!isCurrent && makePoint(month, now, batch).state === 'MISSING') {
+      const reconstruction = await this.reconstructionData(user, params.subject?.trim());
+      const point = reconstruction && reconstructionPoint(reconstruction, month, false, now);
+      if (point) {
+        if (params.batchId && params.batchId !== point.batchId) throw new HistoryPeriodUnavailable('回溯版本已变化，请刷新趋势');
+        const period = reconstruction!.periods.find(p => p.month === month)!;
+        const search = (params.search || '').trim().toLocaleLowerCase();
+        const items = reconstructionItems(period).filter(v => (category === 'all' || v.disposition === category) && (!search || `${v.plateNumber} ${v.vin}`.toLocaleLowerCase().includes(search)))
+          .sort((a, b) => a.plateNumber.localeCompare(b.plateNumber, 'zh-CN') || a.id.localeCompare(b.id));
+        return { point, counts: null, total: items.length, page, pageSize, items: items.slice((page - 1) * pageSize, page * pageSize) };
+      }
+    }
+    if (params.batchId && (!batch || params.batchId !== batch.id || batch.status !== 'COMPLETE')) throw new HistoryPeriodUnavailable('所选快照不可用，请刷新趋势');
+    const rows = isCurrent ? freezeLive(await this.live()) : batch?.status === 'COMPLETE' ? archive.vehicles.get(batch.id)! : [];
+    const scoped = authorizedVehicles(rows, user, params.subject?.trim());
+    const point = makePoint(month, now, batch, scoped, scoped);
+    if (!point.detailAvailable) throw new HistoryPeriodUnavailable(HISTORY_STATE_LABELS[point.state]);
+    const search = (params.search || '').trim().toLocaleLowerCase();
+    const filtered = scoped.filter(v => (category === 'all' || v.disposition === category as HistoryCategory) && (!search || `${v.plateNumber} ${v.vin}`.toLocaleLowerCase().includes(search)))
+      .sort((a, b) => a.plateNumber.localeCompare(b.plateNumber, 'zh-CN') || a.id.localeCompare(b.id));
+    return { point, counts: counts(scoped), total: filtered.length, page, pageSize,
+      items: filtered.slice((page - 1) * pageSize, page * pageSize).map(v => ({ id: v.id, plateNumber: v.plateNumber, vin: v.vin, type: v.type, model: v.model,
+        disposition: v.disposition, operationStatus: v.operationStatus, vehicleStatus: v.vehicleStatus, subjectOrg: v.subjectOrg,
+        departmentName: v.departmentName, customerManager: v.customerManager, customerName: v.customerName, contractNo: v.contractNo })) };
+  }
+}
@@ -0,0 +1,103 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import type { Pool } from 'mysql2/promise';
+import { MysqlHistoryStore } from './store.js';
+import { MAIN_SQL } from '../vehicles/repository.js';
+import { HistoryStorageUnavailable } from './model.js';
+import { testRow } from './fixtures.js';
+
+/** Isolated transactional database double: failed transactions discard ALL staged writes. */
+class Database {
+  commands:string[]=[];
+  rows=[testRow('9223372036854775000'),testRow('stock','3')];
+  settings='2026-10-19T13:00:00+08:00';
+  locked=1; existing: Array<{id:string;status:string}>=[];
+  committed:string[]=[]; staged:string[]=[];
+  failDetails=0; failReads=false; failCommitAck=false; beforeLock?:()=>void; afterSource?:()=>void; onReadTransaction?:()=>void;
+  released=false; clock=()=>new Date('2026-10-31T17:00:00.500+08:00');
+  async query(sql:string,_args?:unknown[]) {
+    this.commands.push(sql);
+    if(sql.includes('GET_LOCK')){this.beforeLock?.();return[[{acquired:this.locked}]];}
+    if(sql.includes('RELEASE_LOCK'))return[[{released:1}]];
+    if(sql.includes('FROM bi_asset_history_settings'))return[[{enabledAt:this.settings}]];
+    if(sql.includes('SELECT id,status'))return[this.existing];
+    if(sql.startsWith('START TRANSACTION'))this.onReadTransaction?.();
+    if(sql===MAIN_SQL){if(this.failReads)throw new Error('read failed');this.afterSource?.();return[this.rows];}
+    if(sql.startsWith('INSERT INTO bi_asset_history_vehicles')){
+      this.staged.push('details');if(this.failDetails-->0)throw new Error('write failed');
+    }
+    if(sql.startsWith('INSERT INTO bi_asset_history_batches'))this.staged.push('batch');
+    if(sql.startsWith('UPDATE bi_asset_history_batches'))this.staged.push('complete');
+    return[[]];
+  }
+  async getConnection(){return this;}
+  async beginTransaction(){this.commands.push('BEGIN');this.staged=[];}
+  async rollback(){this.commands.push('ROLLBACK');this.staged=[];}
+  async commit(){this.commands.push('COMMIT');this.committed.push(...this.staged);this.staged=[];if(this.failCommitAck){this.failCommitAck=false;this.existing=[{id:'committed',status:'COMPLETE'}];throw new Error('commit acknowledgement lost');}}
+  release(){this.released=true;}
+  store(){return new MysqlHistoryStore(this as unknown as Pool);}
+}
+test('capture uses uncached shared SQL and one consistent read; detail/header publish atomically',async()=>{
+  const db=new Database();assert.equal(await db.store().capture('2026-10',db.clock),'captured');
+  assert.deepEqual(db.committed,['batch','details','complete']);
+  assert.equal(db.commands.filter(s=>s===MAIN_SQL).length,1);
+  assert.ok(db.commands.indexOf('START TRANSACTION WITH CONSISTENT SNAPSHOT, READ ONLY')<db.commands.indexOf(MAIN_SQL));
+  assert.ok(db.commands.indexOf(MAIN_SQL)<db.commands.indexOf('ROLLBACK'));
+  assert.equal(db.released,true);assert.ok(db.commands.at(-1)!.includes('RELEASE_LOCK'));
+});
+test('write retry preserves the exact captured rows and time, even after the minute expires',async()=>{
+  const db=new Database();db.failDetails=1;let now=new Date('2026-10-31T17:00:30+08:00');
+  db.afterSource=()=>{now=new Date('2026-10-31T18:00:00+08:00');};const clock=()=>now;
+  assert.equal(await db.store().capture('2026-10',clock),'captured');
+  assert.equal(db.commands.filter(s=>s===MAIN_SQL).length,1);
+  assert.deepEqual(db.committed,['batch','details','complete']);
+  assert.equal(db.commands.filter(s=>s==='BEGIN').length,2);
+});
+test('lost commit acknowledgement does not overwrite or duplicate an already-published batch',async()=>{
+  const db=new Database();db.failCommitAck=true;
+  assert.equal(await db.store().capture('2026-10',db.clock),'already-complete');
+  assert.deepEqual(db.committed,['batch','details','complete']);assert.equal(db.commands.filter(s=>s===MAIN_SQL).length,1);
+});
+test('source is not read if transaction establishment crosses the capture deadline',async()=>{
+  const db=new Database();let now=new Date('2026-10-31T17:00:59.900+08:00');
+  db.onReadTransaction=()=>{now=new Date('2026-10-31T17:01:00+08:00');};
+  assert.equal(await db.store().capture('2026-10',()=>now),'outside-window');
+  assert.equal(db.commands.includes(MAIN_SQL),false);assert.deepEqual(db.committed,[]);
+});
+test('persistent detail-write failure publishes neither partial header nor rows',async()=>{
+  const db=new Database();db.failDetails=5;
+  await assert.rejects(()=>db.store().capture('2026-10',db.clock),/write failed/);
+  assert.deepEqual(db.committed,[]);assert.deepEqual(db.staged,[]);assert.equal(db.released,true);
+  assert.equal(db.commands.filter(s=>s===MAIN_SQL).length,1);
+});
+test('source failure and invalid rows cannot publish snapshots',async()=>{
+  const db=new Database();db.failReads=true;
+  await assert.rejects(()=>db.store().capture('2026-10',db.clock),/read failed/);assert.deepEqual(db.committed,[]);
+  db.failReads=false;db.rows=[testRow('duplicate'),testRow('duplicate')];
+  await assert.rejects(()=>db.store().capture('2026-10',db.clock),/重复/);assert.deepEqual(db.committed,[]);
+});
+test('completed period, concurrent lock and expired window cannot issue a source read',async()=>{
+  for(const scenario of ['complete','lock','expired','delayed-lock','late-activation']){
+    const db=new Database();let clock=db.clock;
+    if(scenario==='complete')db.existing=[{id:'existing',status:'COMPLETE'}];
+    if(scenario==='lock')db.locked=0;
+    if(scenario==='expired')clock=()=>new Date('2026-10-31T17:01:00+08:00');
+    if(scenario==='delayed-lock')db.beforeLock=()=>{clock=()=>new Date('2026-10-31T17:01:00+08:00');};
+    if(scenario==='late-activation')db.settings='2026-10-31T17:00:01+08:00';
+    const result=await db.store().capture('2026-10',()=>clock());
+    assert.ok(['already-complete','locked','outside-window'].includes(result));
+    assert.equal(db.commands.includes(MAIN_SQL),false,scenario);assert.deepEqual(db.committed,[]);
+  }
+});
+test('a legitimate empty source commits a zero-count complete batch without detail inserts',async()=>{
+  const db=new Database();db.rows=[];
+  assert.equal(await db.store().capture('2026-10',db.clock),'captured');assert.deepEqual(db.committed,['batch','complete']);
+});
+test('missing storage reads never issue schema writes and report storage-unavailable',async()=>{
+  const calls:string[]=[];
+  const db={query:async(sql:string)=>{calls.push(sql);throw{code:'ER_NO_SUCH_TABLE'};}};
+  const store=new MysqlHistoryStore(db as unknown as Pool);
+  await assert.rejects(()=>store.settings(),HistoryStorageUnavailable);
+  await assert.rejects(()=>store.batches(),HistoryStorageUnavailable);
+  assert.ok(calls.every(sql=>sql.startsWith('SELECT')));
+});
@@ -0,0 +1,125 @@
+import { randomUUID } from 'node:crypto';
+import type { Pool, PoolConnection, RowDataPacket } from 'mysql2/promise';
+import { CAPTURE_WINDOW_MS, HISTORY_VERSION, monthCutoff, shanghaiTimestamp } from '../../../shared/assets/history.js';
+import type { VehicleRow } from '../../types.js';
+import { MAIN_SQL } from '../vehicles/repository.js';
+import { counts, freezeRows, HistoryStorageUnavailable, type HistoryBatch, type HistorySettings, type HistoryVehicle } from './model.js';
+
+export interface HistoryReader {
+  settings(): Promise<HistorySettings | null>;
+  batches(): Promise<HistoryBatch[]>;
+  vehicles(batchIds: string[]): Promise<Map<string, HistoryVehicle[]>>;
+}
+export type CaptureResult = 'captured' | 'already-complete' | 'locked' | 'outside-window';
+const sqlTime = (date: Date) => shanghaiTimestamp(date).slice(0, 23).replace('T', ' ');
+const dateColumn = (name: string) => `DATE_FORMAT(${name}, '%Y-%m-%dT%H:%i:%s.%f+08:00')`;
+
+/** No schema writes in constructor or any read. All lifecycle writes are explicit. */
+export class MysqlHistoryStore implements HistoryReader {
+  constructor(private readonly db: Pick<Pool, 'query' | 'getConnection'>) {}
+
+  private async read(sql: string, args: unknown[] = []): Promise<RowDataPacket[]> {
+    try { const [rows] = await this.db.query<RowDataPacket[]>(sql, args); return rows; }
+    catch (error) {
+      if ((error as { code?: string }).code === 'ER_NO_SUCH_TABLE') throw new HistoryStorageUnavailable('历史快照存储尚未部署');
+      throw error;
+    }
+  }
+  async settings(): Promise<HistorySettings | null> {
+    const rows = await this.read(`SELECT ${dateColumn('enabled_at')} AS enabledAt FROM bi_asset_history_settings WHERE id=1`);
+    return rows[0] ? { enabledAt: rows[0].enabledAt } : null;
+  }
+  async batches(): Promise<HistoryBatch[]> {
+    const rows = await this.read(`SELECT id, period_month AS month, status, source,
+      total_count,operating_count,inventory_count,
+      ${dateColumn('scheduled_for')} AS scheduledFor, ${dateColumn('captured_at')} AS capturedAt
+      FROM bi_asset_history_batches WHERE definition_version=? ORDER BY period_month`, [HISTORY_VERSION]);
+    return rows.map(row => ({ id: row.id, month: row.month, status: row.status, source: row.source, scheduledFor: row.scheduledFor, capturedAt: row.capturedAt,
+      counts: { total: row.total_count, operating: row.operating_count, inventory: row.inventory_count } }));
+  }
+  async vehicles(batchIds: string[]): Promise<Map<string, HistoryVehicle[]>> {
+    const result = new Map<string, HistoryVehicle[]>(batchIds.map(id => [id, []]));
+    if (!batchIds.length) return result;
+    const rows = await this.read(`SELECT batch_id, frozen_vehicle FROM bi_asset_history_vehicles WHERE batch_id IN (${batchIds.map(() => '?').join(',')}) ORDER BY vehicle_id`, batchIds);
+    for (const row of rows) {
+      const value = typeof row.frozen_vehicle === 'string' ? JSON.parse(row.frozen_vehicle) : row.frozen_vehicle;
+      if (!value || typeof value.id !== 'string') throw new Error('Invalid archived vehicle');
+      result.get(row.batch_id)!.push(value as HistoryVehicle);
+    }
+    return result;
+  }
+  async activate(now: Date): Promise<HistorySettings> {
+    await this.db.query('INSERT IGNORE INTO bi_asset_history_settings (id,enabled_at) VALUES (1,?)', [sqlTime(now)]);
+    return (await this.settings())!;
+  }
+  async recordOutcome(month: string, status: 'FAILED' | 'MISSED', code: string): Promise<void> {
+    // Never downgrade a completed snapshot, or replace a useful failure with MISSED.
+    await this.db.query(`INSERT INTO bi_asset_history_batches
+      (id,period_month,definition_version,scheduled_for,source,status,failure_code)
+      VALUES (?,?,?,?,'AUTO',?,?) ON DUPLICATE KEY UPDATE
+      failure_code=IF(status='COMPLETE' OR (status='FAILED' AND VALUES(status)='MISSED'),failure_code,VALUES(failure_code)),
+      status=IF(status='COMPLETE' OR (status='FAILED' AND VALUES(status)='MISSED'),status,VALUES(status))`,
+    [randomUUID(), month, HISTORY_VERSION, sqlTime(monthCutoff(month)), status, code]);
+  }
+  async capture(month: string, clock: () => Date = () => new Date()): Promise<CaptureResult> {
+    const cutoff = monthCutoff(month).getTime();
+    const inWindow = () => clock().getTime() >= cutoff && clock().getTime() < cutoff + CAPTURE_WINDOW_MS;
+    if (!inWindow()) return 'outside-window';
+    const connection = await this.db.getConnection();
+    const lock = `ln-bi:asset:${HISTORY_VERSION}:${month}`;
+    let locked = false;
+    try {
+      const [locks] = await connection.query<RowDataPacket[]>("SELECT GET_LOCK(CONCAT(DATABASE(),':',?),0) AS acquired", [lock]);
+      locked = Number(locks[0]?.acquired) === 1;
+      if (!locked) return 'locked';
+      const settings = await this.settings();
+      if (!settings || new Date(settings.enabledAt).getTime() > cutoff || !inWindow()) return 'outside-window';
+      const [existing] = await connection.query<RowDataPacket[]>(`SELECT id,status FROM bi_asset_history_batches WHERE period_month=? AND definition_version=?`, [month, HISTORY_VERSION]);
+      if (existing[0]?.status === 'COMPLETE') return 'already-complete';
+      await connection.query("SET time_zone='+08:00'");
+      await connection.query('SET TRANSACTION ISOLATION LEVEL REPEATABLE READ');
+      if (!inWindow()) return 'outside-window';
+      await connection.query('START TRANSACTION WITH CONSISTENT SNAPSHOT, READ ONLY');
+      const capturedAt = clock();
+      let frozen: HistoryVehicle[];
+      try {
+        if (!inWindow()) return 'outside-window';
+        const [rows] = await connection.query<RowDataPacket[]>(MAIN_SQL);
+        frozen = freezeRows(rows as VehicleRow[]);
+      } finally { await connection.rollback(); }
+      // Retries below keep this exact frozen dataset. Never reread a later live ledger.
+      const id = existing[0]?.id || randomUUID();
+      for (let attempt = 0; ; attempt++) {
+        try { return await this.publish(connection, id, month, capturedAt, frozen, clock); }
+        catch (error) { await connection.rollback(); if (attempt >= 2) throw error; }
+      }
+    } finally {
+      try { if (locked) await connection.query("SELECT RELEASE_LOCK(CONCAT(DATABASE(),':',?))", [lock]); }
+      finally { connection.release(); }
+    }
+  }
+  private async publish(connection: PoolConnection, id: string, month: string, capturedAt: Date, vehicles: HistoryVehicle[], clock: () => Date) {
+    const totals = counts(vehicles);
+    await connection.beginTransaction();
+    const [existing] = await connection.query<RowDataPacket[]>('SELECT id,status FROM bi_asset_history_batches WHERE period_month=? AND definition_version=? FOR UPDATE', [month, HISTORY_VERSION]);
+    // Also handles a committed transaction whose acknowledgement was lost.
+    if (existing[0]?.status === 'COMPLETE') { await connection.commit(); return 'already-complete' as const; }
+    if (existing[0]) id = existing[0].id;
+    // Under the advisory lock, only FAILED/MISSED placeholders may be promoted.
+    await connection.query(`INSERT INTO bi_asset_history_batches
+      (id,period_month,definition_version,scheduled_for,captured_at,source,status,total_count,operating_count,inventory_count)
+      VALUES (?,?,?,?,?,'AUTO','FAILED',?,?,?) ON DUPLICATE KEY UPDATE captured_at=VALUES(captured_at),
+      total_count=VALUES(total_count),operating_count=VALUES(operating_count),inventory_count=VALUES(inventory_count)`,
+    [id, month, HISTORY_VERSION, sqlTime(monthCutoff(month)), sqlTime(capturedAt), totals.total, totals.operating, totals.inventory]);
+    for (let offset = 0; offset < vehicles.length; offset += 100) {
+      const chunk = vehicles.slice(offset, offset + 100);
+      await connection.query(`INSERT INTO bi_asset_history_vehicles
+        (batch_id,vehicle_id,operation_status,vehicle_status,disposition,subject_org,department_name,manager_id,frozen_vehicle)
+        VALUES ${chunk.map(() => '(?,?,?,?,?,?,?,?,CAST(? AS JSON))').join(',')}`, chunk.flatMap(v =>
+        [id, v.id, v.operationStatus, v.vehicleStatus, v.disposition, v.subjectOrg, v.departmentName, v.managerId, JSON.stringify(v)]));
+    }
+    await connection.query("UPDATE bi_asset_history_batches SET status='COMPLETE',completed_at=?,failure_code=NULL WHERE id=?", [sqlTime(clock()), id]);
+    await connection.commit();
+    return 'captured' as const;
+  }
+}
@@ -39,7 +39,7 @@ export function registerHydrogenDailyRoute(
      HYDROGEN_BASE_WHERE_B,
      `b.${HYDROGEN_LOCAL} >= '${HYDROGEN_MIN_DATE}'`,
      dateRangeClause(`b.${HYDROGEN_LOCAL}`),
-      customerClause(customer).replaceAll('customer_price', 'b.customer_price').replaceAll('fee_total', 'b.fee_total'),
+      customerClause(customer),
    ].join(' AND ');

    // 站点级聚合（每日 × 每站）。前端组装成 day → stations
@@ -1,5 +1,6 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
+import { DatabaseSync } from 'node:sqlite';
 import {
  customerClause,
  dateRangeClause,
@@ -7,10 +8,31 @@ import {
  resolveDateRange,
 } from './query-model.js';

-test('客户范围继续让外部车辆返回空数据', () => {
-  assert.equal(customerClause('external'), '1=0');
-  assert.equal(customerClause('lingniu'), '1=1');
-  assert.equal(customerClause('all'), '1=1');
+test('外部车辆只取佛山羚牛站未关联车辆的订单，车牌文字和收费不影响分类', () => {
+  const db = new DatabaseSync(':memory:');
+  try {
+    db.exec(`CREATE TABLE orders (
+      id INTEGER, station_id INTEGER, vehicle_id INTEGER,
+      license_plate TEXT, customer_price REAL, del_flag TEXT
+    );
+    INSERT INTO orders VALUES
+      (1, 341, NULL, '粤A外部', 38, '0'),
+      (2, 341, NULL, '', 0, '0'),
+      (3, 341, 123, '粤A羚牛', 38, '0'),
+      (4, 52, NULL, '粤A其他站', 38, '0'),
+      (5, NULL, NULL, '', 0, '0'),
+      (6, NULL, 456, '粤A未关联站点', 0, '0'),
+      (7, 341, NULL, '粤A已删除', 38, '1');`);
+    const ids = (kind: 'external' | 'lingniu' | 'all') => db
+      .prepare(`SELECT b.id FROM orders b WHERE b.del_flag = '0' AND ${customerClause(kind)} ORDER BY b.id`)
+      .all().map(row => row.id);
+    assert.deepEqual(ids('external'), [1, 2]);
+    assert.deepEqual(ids('lingniu'), [3, 4, 5, 6]);
+    assert.deepEqual(ids('all'), [1, 2, 3, 4, 5, 6]);
+    assert.deepEqual([...ids('external'), ...ids('lingniu')].sort(), ids('all'));
+  } finally {
+    db.close();
+  }
 });

 test('能源日期快捷区间继续按本地自然日计算', () => {
@@ -8,10 +8,14 @@ export interface EnergyDateRange {

 const YMD_RE = /^\d{4}-\d{2}-\d{2}$/;

-// 新账本目前只承载羚牛车辆订单；外部车辆仍需返回空集合而不是混用羚牛数据。
+// 主数据 ID 341：佛山南海羚牛加氢站。车牌文字存在不代表已关联车辆。
+const FOSHAN_LINGNIU_STATION_ID = 341;
+
+// 日明细账本使用别名 b；两类互斥，其他订单继续保留在原羚牛范围内。
 export function customerClause(customer: CustomerKind): string {
-  if (customer === 'external') return '1=0';
-  if (customer === 'lingniu') return '1=1';
+  const external = `(COALESCE(b.station_id, 0) = ${FOSHAN_LINGNIU_STATION_ID} AND b.vehicle_id IS NULL)`;
+  if (customer === 'external') return external;
+  if (customer === 'lingniu') return `NOT ${external}`;
  return '1=1';
 }

@@ -105,6 +105,11 @@ test('四个处理器保持缓存和参数契约，加氢站点使用新主数
    '/hydrogen/daily?startDate=2025-01-01&endDate=2025-01-02&customer=external&force=1',
  );
  assert.equal(dailyResponse.status, 200);
+  assert.deepEqual(await dailyResponse.json(), [
+    { date: '2025-01-02', totalKg: 10, chainPct: 0, customerType: 'external',
+      stations: [{ name: '测试站', pricePerKg: 35, kg: 10, chainPct: 0 }] },
+    { date: '2025-01-01', totalKg: 0, chainPct: 0, customerType: 'external', stations: [] },
+  ]);

  const electricApp = new Hono();
  const electricDependencies = {
@@ -127,7 +132,7 @@ test('四个处理器保持缓存和参数契约，加氢站点使用新主数
    { key: 'electric/monthly?customer=external&start=2025-01-01&end=2025-01-02', force: true },
  ]);

-  // 指纹来自拆分前的 13 条 SQL，连空白符变化也会使测试失败。
+  // 保留查询契约指纹；日明细已更新为佛山羚牛站未关联车辆的外部订单筛选。
  assert.deepEqual(
    [...hydrogenCalls, ...electricCalls].map(call => sqlHash(call.sql)),
    [
@@ -138,7 +143,7 @@ test('四个处理器保持缓存和参数契约，加氢站点使用新主数
      '256ac8309d5a',
      'dac9e86fc527',
      'a71da8f05765',
-      '24b23780a259',
+      'd1620280f520',
      '226fd8f950a1',
      '6e4031b10926',
      '4fc77463294c',
@@ -43,6 +43,7 @@ export interface VehicleRow {
 }

 export interface Vehicle {
+  vehicleStatus?: string | null;
  opsManagers?: string | null;
  pendingDelivery?: { contractNo: string | null; customerName: string | null } | null;
  abnormalMove?: AbnormalMoveDetail | null;
@@ -8,12 +8,15 @@ export type FaultDimension = keyof typeof FAULT_DIMENSIONS;
 export type FaultMetric = 'reported' | 'closed' | 'open';
 export interface FaultOption { value: string; label: string }
 export interface FaultCounts { reported: number; closed: number; open: number }
+export const FAULT_REPORT_METHODS = { operations: '运维提报', customer: 'AI提报' } as const;
+export type FaultReportMethod = keyof typeof FAULT_REPORT_METHODS;
 export interface FaultRecord {
  id: string; code: string; plate: string; description: string;
  reportedAt: string | null; archivedAt: string | null; deadlineAt: string | null; receivedAt: string | null;
  city: string; status: string; inventory: string;
  customer: string; customerLabel: string; department: string;
  handlers: FaultOption[];
+  level?: string; categories?: string[]; progress?: string; reportMethod?: FaultReportMethod;
 }
 export interface FaultQuery {
  start: string; end: string; groupBy: FaultDimension;
@@ -63,3 +66,19 @@ export interface FaultWeeklyResponse {
  totals: Record<FaultWeeklyMetric, number>;
  days: (Record<FaultWeeklyMetric, number> & { date: string })[];
 }
+
+export const FAULT_DASHBOARD_FILTERS = { region: '区域', customer: '客户', model: '品牌车型', city: '城市', department: '业务部门', handler: '运维处置人', level: '故障程度', category: '故障部位', inventory: '库存状态', reportMethod: '提报来源' } as const;
+export type FaultDashboardDimension = keyof typeof FAULT_DASHBOARD_FILTERS;
+export type FaultDashboardFilters = Partial<Record<FaultDashboardDimension, string>>;
+export type FaultDashboardScope = 'focus' | 'cohort' | 'open' | 'waiting' | 'processing' | 'overdue' | 'ledger' | 'reported' | 'closed';
+export interface FaultDistribution { value: string; label: string; reported: number; closed: number; unclosed: number; vehicles: number; open: number }
+export interface FaultDashboardResponse {
+  start: string; end: string; updatedAt: string;
+  totals: { reported: number; operationsReported: number; customerReported: number; vehicles: number; customers: number; previous: number; change: number | null; open: number; waiting: number; processing: number; overdue: number; longestOverdueDays: number; todayReported: number; todayClosed: number; ledger: number };
+  options: Record<FaultDashboardDimension, FaultOption[]>;
+  distributions: Record<'region' | 'level' | 'customer' | 'model', FaultDistribution[]>;
+  matrix: { models: FaultOption[]; categories: FaultOption[]; cells: { model: string; category: string; count: number }[]; totals: Record<string, number> };
+  focus: FaultAnalysisRecord[];
+  focusTotals: { total: number; overdue: number };
+  quality: { missingLevel: number; missingCategory: number; missingVehicle: number; missingDeadline: number; missingReport: number };
+}
@@ -0,0 +1,76 @@
+export type HistoryMode = 'monthly' | 'annual';
+export type HistoryState = 'LIVE' | 'ARCHIVED' | 'MISSING' | 'FUTURE' | 'CAPTURING' | 'FAILED' | 'RECONSTRUCTED';
+export type HistoryCategory = 'all' | 'operating' | 'inventory';
+export interface HistoryCounts { total: number; operating: number; inventory: number }
+export interface HistoryPoint {
+  period: string;
+  label: string;
+  month: string;
+  scheduledFor: string;
+  asOf: string | null;
+  state: HistoryState;
+  source: 'AUTO' | 'IMPORT' | 'LIVE' | 'RECONSTRUCTED' | null;
+  batchId: string | null;
+  counts: HistoryCounts | null;
+  difference: HistoryCounts | null;
+  comparisonLabel: string;
+  detailAvailable: boolean;
+  reconstruction?: {
+    operating: number; inventory: number; unclassified: number;
+    currentlyExited: number; sourceAsOf: string; sourceReference: string;
+    workbookSha256: string;
+    difference: { operating: number; inventory: number } | null;
+  };
+}
+export interface HistoryTrend {
+  mode: HistoryMode;
+  year: number;
+  points: HistoryPoint[];
+  years: number[];
+  subjects: string[];
+  storageReady: boolean;
+  enabledAt: string | null;
+  nextCaptureAt: string | null;
+  warning: string | null;
+}
+export interface HistoryDetailItem {
+  id: string; plateNumber: string; vin: string; type: string; model: string;
+  disposition: 'operating' | 'inventory'; operationStatus: string | null;
+  vehicleStatus: string | null; subjectOrg: string | null; departmentName: string | null;
+  customerManager: string | null; customerName: string | null; contractNo: string | null;
+  reconstructionBasis?: string;
+}
+export interface HistoryDetails {
+  point: HistoryPoint;
+  counts: HistoryCounts | null;
+  total: number;
+  page: number;
+  pageSize: number;
+  items: HistoryDetailItem[];
+}
+
+const OFFSET = 8 * 60 * 60 * 1000;
+export const CAPTURE_WINDOW_MS = 60_000;
+export const HISTORY_VERSION = 'asset-v1';
+export function shanghaiMonth(now: Date): string { return new Date(now.getTime() + OFFSET).toISOString().slice(0, 7); }
+export function shanghaiTimestamp(now: Date): string { return new Date(now.getTime() + OFFSET).toISOString().slice(0, -1) + '+08:00'; }
+export function monthCutoff(month: string): Date {
+  if (!/^\d{4}-(0[1-9]|1[0-2])$/.test(month)) throw new Error('月份格式无效');
+  const [year, m] = month.split('-').map(Number);
+  return new Date(Date.UTC(year, m, 0, 9)); // 17:00 Asia/Shanghai, on the last day.
+}
+export function shiftMonth(month: string, offset: number): string {
+  const [year, m] = month.split('-').map(Number);
+  return new Date(Date.UTC(year, m - 1 + offset, 1)).toISOString().slice(0, 7);
+}
+export function nextCapture(now: Date): string {
+  const month = shanghaiMonth(now);
+  return shanghaiTimestamp(monthCutoff(monthCutoff(month).getTime() > now.getTime() ? month : shiftMonth(month, 1)));
+}
+export function historyTime(value: string | null): string {
+  if (!value) return '暂无时间';
+  return new Intl.DateTimeFormat('zh-CN', { timeZone: 'Asia/Shanghai', month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', hour12: false }).format(new Date(value));
+}
+export const HISTORY_STATE_LABELS: Record<HistoryState, string> = {
+  LIVE: '未结期 · 实时', ARCHIVED: '已归档', MISSING: '暂无快照', FUTURE: '尚未到达', CAPTURING: '归档中', FAILED: '归档失败', RECONSTRUCTED: '历史回溯 · 估算',
+};
Author	SHA1	Message	Date
shishengliang	d8871964a4	chore(release): bump version to 1.1.21 ci/woodpecker/push/woodpecker Pipeline failed Details	2026-10-24 13:16:59 +08:00
shishengliang	1e57586a35	Merge asset history trends into feature/asset-statistics	2026-10-24 13:16:53 +08:00
shishengliang	8afe13c9a3	feat(assets): add verified asset history trends and compact overview	2026-10-24 13:16:48 +08:00
shishengliang	187a72d6b0	chore(release): bump version to 1.1.20 ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-22 11:06:43 +08:00
shishengliang	3657661fa7	Merge fault_1013_improve into feature/asset-statistics	2026-10-22 11:06:41 +08:00
shishengliang	dbe0421bfe	fix(assets): 移除故障提报来源展示 ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-16 18:23:57 +08:00
shishengliang	1674f052d0	feat(assets): 完善故障提报来源与重点跟进展示 ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-16 18:15:44 +08:00
shishengliang	f107e96d3c	feat(assets): 完善故障风险多维分析与管理总览 ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-16 12:38:52 +08:00
shishengliang	4dec824285	feat(assets): 优化移动端分析体验并记录 AI 提问日志	2026-10-13 16:24:28 +08:00
shishengliang	00c09d7452	fix(mileage): skip missing daily mileage in interval totals ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-13 13:20:14 +08:00
shishengliang	5751d1af15	fix(assets): emphasize daily flow details and sort newest first ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-10-10 21:56:06 +08:00
shishengliang	24984fe033	fix(assets): show inventory operations managers and bump v1.1.19	2026-10-10 21:56:06 +08:00
shishengliang	7dd7e67602	fix(energy): connect Foshan external vehicle hydrogen orders ci/woodpecker/push/woodpecker Pipeline was successful Details	2026-09-29 10:03:45 +08:00
				`@@ -0,0 +1 @@`
				`period_month,scheduled_for,captured_at,definition_version,source_reference,vehicle_id,plate_number,vin,operation_status,vehicle_status,subject_org,department_name,manager_id,manager_name,vehicle_type,model,brand,color,ownership,rent_company,province,city,contract_no,customer_name,contract_org,project_name`