feat(asset-ai): simplify count answers and refine mobile conversation layout

src/modules/assets/assistant/AssetAssistant.tsx

@@ -30,7 +30,6 @@ import {
 } from "../../../shared/assets/assistant";
 import { askAssetAssistant, AssistantRequestError } from "./client";
 import { fetchAuthenticated } from "../../../auth/api-client";
-import { DemandGaps } from "./DemandGaps";
 import { ThinkingState } from "./ThinkingState";
 import { CompoundResultView } from "./CompoundResultView";
 import { BUSINESS_QUESTIONS, conversationTitle, findConversationResult, replaceAnalysisResult } from "./conversation-presentation";
@@ -90,6 +89,23 @@ export default function AssetAssistant({
   close: () => void;
   appearance: "light" | "dark";
 }) {
+  const page = useRef<HTMLElement>(null);
+  useLayoutEffect(() => {
+    const viewport = window.visualViewport;
+    const updateViewport = () => {
+      page.current?.style.setProperty('--aq-viewport-height', `${viewport?.height ?? window.innerHeight}px`);
+      page.current?.style.setProperty('--aq-viewport-top', `${viewport?.offsetTop ?? 0}px`);
+    };
+    updateViewport();
+    viewport?.addEventListener('resize', updateViewport);
+    viewport?.addEventListener('scroll', updateViewport);
+    window.addEventListener('resize', updateViewport);
+    return () => {
+      viewport?.removeEventListener('resize', updateViewport);
+      viewport?.removeEventListener('scroll', updateViewport);
+      window.removeEventListener('resize', updateViewport);
+    };
+  }, []);
   const [theme, setTheme] = useState(appearance);
   const [turns, setTurns] = useState<Turn[]>([]);
   const turnsRef = useRef(turns);
@@ -110,7 +126,6 @@ export default function AssetAssistant({
   const [activeResult, setActiveResult] = useState<AssistantResult>();
   const sessionRef = useRef<string | undefined>(undefined);
   const sessions = useRef(new Map<string, string | null>());
-  const [showGaps, setShowGaps] = useState(false);
   const nextId = useRef(0);
   const composer = useRef<HTMLTextAreaElement>(null);
   const scroller = useRef<HTMLDivElement>(null);
@@ -189,7 +204,6 @@ export default function AssetAssistant({
     return () => controller.abort();
   }, []);
   const revealTurn = (id: number) => {
-    setShowGaps(false);
     setExpandedTurns((old) => new Set(old).add(id));
     autoFollow.current = null;
     setViewedTurn(id);
@@ -232,7 +246,6 @@ export default function AssetAssistant({
     action?: AssistantAction,
   ) => {
     if (!message.trim() || abortRef.current) return;
-    setShowGaps(false);
     setIndependent(false);
     const inlineTurn = action && base?.resultId
       ? turnsRef.current.find(turn => !!findConversationResult([turn], base.resultId!))
@@ -344,7 +357,6 @@ export default function AssetAssistant({
       ).catch(() => {});
     sessionRef.current = undefined;
     setActiveResult(undefined);
-    setShowGaps(false);
     setTurns([]);
     setExpandedTurns(new Set());
     setDraft("");
@@ -355,6 +367,7 @@ export default function AssetAssistant({
   }, [subject]);
   return (
     <section
+      ref={page}
       className={`aq-shell aq-page aq-${theme}`}
       aria-label="资产 AI 问数"
     >
@@ -388,10 +401,6 @@ export default function AssetAssistant({
           返回资产总览
           <ArrowUpRight size={14} />
         </button>
-        <button className="aq-nav" onClick={() => setShowGaps(true)}>
-          <CircleHelp size={16} />
-          待完善需求
-        </button>
         <div className="aq-side-label aq-history-label">
           本次对话<span>{turns.length.toString().padStart(2, "0")}</span>
         </div>
@@ -438,13 +447,6 @@ export default function AssetAssistant({
             <span className="aq-header-subtitle">你的资产分析助手</span>
           </div>
           <div>
-            <button
-              className="aq-icon-button"
-              onClick={() => setShowGaps(!showGaps)}
-              aria-label="查看待完善需求"
-            >
-              <History size={17} />
-            </button>
             <button
               className="aq-icon-button aq-mobile-new"
               onClick={reset}
@@ -509,9 +511,7 @@ export default function AssetAssistant({
           onTouchMove={() => { autoFollow.current = null; readerRevision.current++; }}
           onPointerDown={() => { autoFollow.current = null; readerRevision.current++; }}
           onKeyDown={(event) => { if (["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " "].includes(event.key)) { autoFollow.current = null; readerRevision.current++; } }}>
-          {showGaps ? (
+          {!turns.length ? (
-            <DemandGaps close={() => setShowGaps(false)} />
-          ) : !turns.length ? (
             <div className="aq-welcome">
               <div className="aq-welcome-mark">
                 <Sparkles size={30} strokeWidth={1.3} />
@@ -519,15 +519,14 @@ export default function AssetAssistant({
               <h2>关于资产，你想了解什么？</h2>
               <p>
                 用一句话，发现数据里的答案。
-                <br className="aq-mobile-break" />{" "}
+                <span className="aq-welcome-detail"> 从全局统计，一路看到每一台车。</span>
-                从全局统计，一路看到每一台车。
               </p>
               <div className="aq-prompt-grid">
                 {PROMPTS.map((p) => (
                   <button key={p.title} onClick={() => void ask(p.text)}>
                     <div>
-                      <p.icon size={18} />
+                      <p.icon size={18} aria-hidden="true" />
-                      <ArrowUpRight size={14} />
+                      <ArrowUpRight size={14} aria-hidden="true" />
                     </div>
                     <strong>{p.title}</strong>
                     <span>{p.detail}</span>
@@ -711,13 +710,7 @@ export default function AssetAssistant({
                               }
                             }}
                           />
-                        ) : (
+                        ) : null}
-                          <div className="aq-waiting">
-                            <span />
-                            <span />
-                            <span />
-                          </div>
-                        )}
                       </>
                     )}
                   </section>

src/modules/assets/assistant/CompoundResultView.tsx

@@ -169,7 +169,7 @@ export function CompoundResultView({
       {result.gap && (
         <p className="aq-compound-notice">
           {result.gap.recorded
-            ? "未满足的需求已记录，可在待完善需求中查看。"
+            ? "未满足的需求已记录。"
             : "未满足的需求暂未保存。"}
         </p>
       )}

src/modules/assets/assistant/ResultView.tsx

@@ -281,7 +281,7 @@ function ResultViewContent({
   );
   return (
     <div className={`aq-result ${active ? "aq-result-active" : ""}`}>
-      {plan.kind !== "clarify" && (
+      {plan.kind !== "clarify" && !result.conciseCount && (
         <header
           className="aq-query-heading"
           id={result.resultId ? `aq-query-${result.resultId}` : undefined}
@@ -362,7 +362,7 @@ function ResultViewContent({
       >
         {result.summary}
       </p>
-      {!!visibleMetrics.length && (
+      {!result.conciseCount && !!visibleMetrics.length && (
         <div className="aq-metrics aq-primary-metrics">
           {visibleMetrics.map((metric) => (
             <div key={metric.label}>
@@ -375,7 +375,7 @@ function ResultViewContent({
           ))}
         </div>
       )}
-      {!!extraMetrics.length && (
+      {!result.conciseCount && !!extraMetrics.length && (
         <details className="aq-extra-metrics">
           <summary>查看其余 {extraMetrics.length} 项指标</summary>
           <div>
@@ -405,11 +405,11 @@ function ResultViewContent({
       {result.gap && (
         <p className="aq-gap-note">
           {result.gap.recorded
-            ? "这个需求已记下，可在「待完善需求」中查看。"
+            ? "这个需求已记下。"
             : "可以点击下方「未解决我的问题」记录需求。"}
         </p>
       )}
-      {plan.kind !== "clarify" && (
+      {plan.kind !== "clarify" && !result.conciseCount && (
         <>
           <div className="aq-result-card">
             {result.inventoryBreakdown && display !== "metrics" && (
@@ -849,6 +849,11 @@ function ResultViewContent({
           </div>
         </>
       )}
+      {result.conciseCount && result.metrics[0]?.value > 0 && (
+        <button className="aq-more" disabled={disabled} onClick={() => run({ type: "view", view: "list" }, "查看车辆明细")}>
+          查看车辆明细 <ArrowUpRight size={14} aria-hidden="true" />
+        </button>
+      )}
       <div className="aq-result-footer">
         <details className="aq-result-definitions">
           <summary>
@@ -873,7 +878,7 @@ function ResultViewContent({
           <p>来源：{result.source}</p>
         </details>
         <div className="aq-answer-actions">
-          {plan.kind !== "clarify" && (
+          {plan.kind !== "clarify" && (!result.conciseCount || result.metrics[0]?.value > 0) && (
             <button
               disabled={disabled || saving}
               onClick={() => void download()}
@@ -912,7 +917,7 @@ function ResultViewContent({
           </p>
         )}
       </div>
-      {!!suggestions.length && (
+      {!result.conciseCount && !!suggestions.length && (
         <div className="aq-followups">
           <span>{plan.kind === "clarify" ? "你可以这样继续" : "继续分析"}</span>
           {suggestions.slice(0, 4).map((question) => (

src/modules/assets/assistant/ThinkingState.tsx

@@ -1,7 +1,7 @@
 // Adapted from Beautiful UI's MIT-licensed ThinkingState (Steps).
 // Uses real server progress rather than the reference's timed demo sequence.
-import { useEffect, useState } from "react";
+import { useEffect, useId, useState } from "react";
-import { Check, ChevronDown, LoaderCircle, Sparkles } from "lucide-react";
+import { Check, ChevronDown, CircleAlert, LoaderCircle, Pause, Sparkles } from "lucide-react";
 
 export function ThinkingState({
   steps,
@@ -18,27 +18,30 @@ export function ThinkingState({
   stopped?: boolean;
   outcome?: string;
 }) {
+  const traceId = useId();
   const [manualExpanded, setExpanded] = useState<boolean | null>(null);
   const [elapsed, setElapsed] = useState(0);
   useEffect(() => {
     if (!working) return;
     const update = () => setElapsed((Date.now() - started) / 1000);
     update();
-    const timer = window.setInterval(update, 100);
+    const timer = window.setInterval(update, 1000);
     return () => window.clearInterval(timer);
   }, [working, started]);
-  const expanded = manualExpanded ?? false;
+  const expanded = manualExpanded ?? working;
+  const StatusIcon = working ? LoaderCircle : stopped ? Pause : failed ? CircleAlert : Sparkles;
   return (
-    <div className="aq-thinking">
+    <div className={`aq-thinking${working ? " aq-thinking-working" : ""}`} data-state={working ? "working" : stopped ? "stopped" : failed ? "failed" : "complete"}>
       <button
         type="button"
         aria-expanded={expanded}
+        aria-controls={traceId}
         onClick={() => setExpanded(!expanded)}
       >
-        <Sparkles size={15} aria-hidden="true" />
+        <StatusIcon size={16} className={working ? "aq-spin" : ""} aria-hidden="true" />
-        <span className={working ? "aq-shimmer" : ""}>
+        <span className={`aq-thinking-title${working ? " aq-shimmer" : ""}`}>
           {working
-            ? steps.at(-1) || "正在分析"
+            ? "正在分析"
             : stopped
               ? "已由用户停止"
               : failed
@@ -55,7 +58,10 @@ export function ThinkingState({
                           ? "已回答"
                           : "分析完成"}
         </span>
-        {elapsed > 0 && <span className="aq-time">{elapsed.toFixed(1)}s</span>}
+        <span className="aq-thinking-meta">
+          {steps.length > 0 && <span>{steps.length} 个步骤</span>}
+          {elapsed > 0 && <span className="aq-time">{Math.floor(elapsed)} 秒</span>}
+        </span>
         <ChevronDown
           size={14}
           className={expanded ? "aq-rotated" : ""}
@@ -63,6 +69,7 @@ export function ThinkingState({
         />
       </button>
       <div
+        id={traceId}
         className="aq-trace-collapse"
         aria-hidden={!expanded}
         style={{
@@ -72,14 +79,17 @@ export function ThinkingState({
       >
         <div className="aq-trace-clip">
           <ol className="aq-trace">
+            {!steps.length && <li><span>{working ? "正在连接分析服务…" : "暂无执行步骤"}</span></li>}
             {steps.map((step, index) => (
-              <li key={`${index}-${step}`}>
+              <li key={`${index}-${step}`} data-current={index === steps.length - 1}>
                 {working && index === steps.length - 1 ? (
                   <LoaderCircle
                     className="aq-spin"
                     size={14}
                     aria-hidden="true"
                   />
+                ) : index === steps.length - 1 && (failed || stopped) ? (
+                  <StatusIcon size={14} aria-hidden="true" />
                 ) : (
                   <Check size={14} aria-hidden="true" />
                 )}

src/modules/assets/assistant/assistant.css

@@ -405,9 +405,6 @@
   color: var(--aq-muted);
   margin-top: 24px;
 }
-.aq-mobile-break {
-  display: none;
-}
 .aq-turns {
   max-width: 820px;
   margin: 0 auto;
@@ -1124,9 +1121,6 @@
   .aq-welcome > p {
     font-size: 12px;
   }
-  .aq-mobile-break {
-    display: block;
-  }
   .aq-welcome-mark {
     width: 52px;
     height: 52px;
@@ -2014,3 +2008,93 @@
   .aq-generated-metrics strong { font-size: 21px; }
   .aq-stacked-section { padding: 7px; }
 }
+
+/* The full-page assistant owns the mobile viewport, including keyboard resize. */
+@media (max-width: 767px) {
+  .app-shell:has(.aq-page) .app-mobile-nav { display: none; }
+  .app-shell:has(.aq-page) .app-shell-content { padding-bottom: 0; }
+  .aq-shell.aq-page {
+    position: fixed;
+    top: var(--aq-viewport-top, 0px);
+    left: 0;
+    height: var(--aq-viewport-height, 100dvh);
+    max-height: none;
+    margin-top: 0;
+  }
+  .aq-page .aq-sidebar { display: none; }
+  .aq-page .aq-composer-area { flex-shrink: 0; }
+  .aq-page .aq-composer textarea { font-size: 16px; }
+}
+
+/* Quiet, expandable execution traces inspired by Beautiful UI. */
+.aq-thinking {
+  border: 1px solid var(--aq-line);
+  border-radius: 12px;
+  background: var(--aq-bg);
+  padding: 2px 12px;
+  margin-bottom: 16px;
+}
+.aq-thinking-working { background: var(--aq-sidebar); }
+.aq-thinking > button {
+  display: flex;
+  width: 100%;
+  min-height: 44px;
+  margin: 0;
+  padding: 8px 0;
+  gap: 8px;
+  text-align: left;
+  font-size: 13px;
+}
+.aq-thinking > button > svg { flex-shrink: 0; }
+.aq-thinking-title { min-width: 0; overflow-wrap: anywhere; }
+.aq-thinking-meta {
+  display: flex;
+  gap: 10px;
+  margin-left: auto;
+  white-space: nowrap;
+  font-size: 12px;
+  font-variant-numeric: tabular-nums;
+}
+.aq-thinking .aq-time { font-size: 12px; opacity: 1; }
+.aq-trace { margin: 0 0 12px 7px; padding: 0 0 0 18px; }
+.aq-trace li { align-items: flex-start; gap: 10px; padding: 7px 0; line-height: 1.6; overflow-wrap: anywhere; }
+.aq-trace li svg { flex-shrink: 0; margin-top: 3px; }
+.aq-thinking-working .aq-trace li[data-current="true"] { color: var(--aq-ink); }
+.aq-thinking[data-state="failed"] > button > svg { color: var(--aq-danger); }
+.aq-question p { padding: 12px 16px; border-radius: 18px 18px 4px 18px; font-weight: 400; }
+.aq-assistant-label { margin-bottom: 10px; }
+.aq-assistant-label strong { font-size: 13px; }
+.aq-assistant-label > span:last-child { font-size: 12px; }
+.aq-composer { border-radius: 18px; box-shadow: 0 2px 8px #00000006; }
+.aq-composer:focus-within { border-color: var(--aq-accent); box-shadow: 0 0 0 3px var(--aq-soft); }
+.aq-welcome h2 { text-wrap: balance; }
+.aq-prompt-grid > button { transition: background 160ms ease, border-color 160ms ease; }
+.aq-prompt-grid > button:hover { background: var(--aq-sidebar); border-color: var(--aq-accent); }
+.aq-page button:focus-visible { outline: 2px solid var(--aq-accent); outline-offset: 3px; }
+.aq-page button:active:not(:disabled) { opacity: .75; }
+@media (max-width: 767px) {
+  .aq-header { min-height: 64px; height: auto; padding: 8px 12px; }
+  .aq-header > div { gap: 4px; }
+  .aq-header .aq-icon-button { width: 44px; height: 44px; min-width: 44px; }
+  .aq-thinking { margin-left: 0; padding: 2px 10px; }
+  .aq-thinking-meta { gap: 6px; }
+  .aq-question p { max-width: 88%; font-size: 15px; }
+  .aq-welcome { padding: 24px 16px 16px; }
+  .aq-welcome-mark { display: none; }
+  .aq-welcome h2 { margin: 0 0 8px; font-size: 22px; line-height: 1.4; letter-spacing: -.5px; }
+  .aq-welcome > p { margin: 0; font-size: 13px; line-height: 1.5; }
+  .aq-welcome-detail { display: none; }
+  .aq-prompt-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 20px; gap: 8px; }
+  .aq-prompt-grid > button { flex-direction: row; align-items: center; justify-content: flex-start; gap: 8px; min-width: 0; min-height: 48px; padding: 12px; border-radius: 12px; }
+  .aq-prompt-grid > button > div { flex-shrink: 0; margin: 0; color: var(--aq-ink); }
+  .aq-prompt-grid > button > div > svg:last-child { display: none; }
+  .aq-prompt-grid > button strong { font-size: 14px; line-height: 1.5; overflow-wrap: anywhere; }
+  .aq-prompt-grid > button > span { display: none; }
+  .aq-welcome-note { margin-top: 12px; font-size: 12px; line-height: 1.5; flex-wrap: nowrap; }
+  .aq-welcome-note svg { flex-shrink: 0; }
+}
+@media (prefers-reduced-motion: reduce) {
+  .aq-page .aq-spin, .aq-page .aq-shimmer, .aq-page .aq-trace li { animation: none; }
+  .aq-page .aq-shimmer { background: none; color: var(--aq-muted); }
+  .aq-page .aq-trace-collapse { transition: none; }
+}

src/modules/assets/assistant/concise-count.test.ts

@@ -0,0 +1,24 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import { createElement } from "react";
+import { renderToStaticMarkup } from "react-dom/server";
+import { ResultView } from "./ResultView";
+import type { AssistantResult } from "../../../shared/assets/assistant";
+
+test("count answer renders prose without report cards and only offers records for positive counts", () => {
+  for (const count of [0, 7]) {
+    const result: AssistantResult = {
+      plan: {kind:"assets",category:"abnormal",groupBy:"none",view:"chart",filters:{}},
+      conciseCount:true,outcome:"complete",summary:`当前异动车辆为 ${count} 台。`,
+      title:"异动车辆概览",metrics:[{label:"异动车辆",value:count,unit:"台"}],
+      rows:[],groups:[],source:"测试台账",fetchedAt:"2026-09-23T00:00:00Z",suggestions:["查看全部车辆"],
+    };
+    const noop = () => {};
+    const html = renderToStaticMarkup(createElement(ResultView,{result,ask:noop,operate:noop,restore:noop,active:true,activate:noop,subject:null,disabled:false,showCorrection:noop}));
+    assert.match(html,new RegExp(`当前异动车辆为 ${count} 台`));
+    assert.doesNotMatch(html,/aq-primary-metrics|aq-result-card|aq-followups|aq-query-heading/);
+    assert.equal(html.includes("查看车辆明细"),count > 0);
+    assert.equal(html.includes("导出明细"),count > 0);
+    assert.match(html,/统计口径、权限与数据时间/);
+  }
+});

src/server/routes/asset-assistant/generative.test.ts

@@ -257,3 +257,15 @@ test("metric references keep one unit when the model appends it in prose", async
   await generatePresentation(value,"说明库存",signal());
   assert.equal(value.presentation?.blocks[0].text,"库存2 台，其中待交车0台。");
 });
+
+test("verified single count bypasses generated report and external request", async (t) => {
+  configure(t);
+  t.mock.method(globalThis, "fetch", async () => { throw new Error("count must not call presentation model"); });
+  const r = result({plan:plan({category:"abnormal",groupBy:"none"}),outcome:"empty",rows:[],groups:[],metrics:[{label:"异动车辆",value:0,unit:"台"}]});
+  await generatePresentation(r,"当前有多少异动车辆？",new AbortController().signal);
+  assert.equal(r.conciseCount,true);
+  assert.equal(r.outcome,"complete");
+  assert.equal(r.presentation,undefined);
+  assert.equal(r.presentationWarning,undefined);
+  assert.match(r.summary,/异动车辆为 0 台/);
+});

src/server/routes/asset-assistant/generative.ts

@@ -6,6 +6,7 @@ import type {
   ResultPresentation,
 } from "../../../shared/assets/assistant.js";
 import { validatePlan } from "./model.js";
+import { simplifyCountAnswer } from "./presentation.js";
 
 type Dataset = "groups" | "rows" | "daily" | "comparison";
 type Field = { field: string; label: string; type: "number" | "string" | "boolean" };
@@ -158,6 +159,8 @@ function fallback(target: AssistantResult, warning: string) {
 }
 /** Generate presentation metadata only; query data and authorization are unchanged. */
 export async function generatePresentation(result: AssistantResult, question: string, signal: AbortSignal): Promise<void> {
+  if (signal.aborted) throw signal.reason || new Error("已取消");
+  if (simplifyCountAnswer(result, question)) return;
   if (process.env.ASSET_AI_EXTERNAL_ENABLED === "0") return;
   if (signal.aborted) throw signal.reason || new Error("已取消");
   const targets = targetsFor(result).filter(target => target.result.plan.responseMode !== "vehicle-status");

src/server/routes/asset-assistant/model.test.ts

@@ -158,3 +158,11 @@ test("presentation receives authorized aggregates while vehicle rows stay in the
   );
   assert.equal(events.filter((e) => e.type === "step").length, 4);
 });
+
+test("inventory subsets do not inherit parent inventory metric cards", () => {
+  for (const category of ["abnormal", "pending", "available", "awaiting"] as const) {
+    const r = assetResult(vehicles, {kind:"assets", category, groupBy:"none", view:"chart", filters:{}});
+    assert.equal(r.metrics.length, 1, category);
+    assert.doesNotMatch(r.summary, /其中异动.*待交车/);
+  }
+});

src/server/routes/asset-assistant/model.ts

@@ -335,7 +335,7 @@ export function assetResult(
     missingDueDate: "未填写预计完成时间",
   }[plan.exception || "overdue"];
   let summary = rows.length
-    ? `${scope}共有 ${rows.length.toLocaleString()} 台${CATEGORY_LABELS[plan.category]}${plan.exception ? `，均为${exceptionLabel}的异动车辆` : ""}。${abnormal || pending ? `其中异动 ${abnormal} 台、待交车 ${pending} 台，已计入库存。` : ""}${plan.topN ? `下方展示排名前 ${plan.topN} 的分组，总量与占比仍按完整筛选范围计算。` : ""}`
+    ? `${scope}共有 ${rows.length.toLocaleString()} 台${CATEGORY_LABELS[plan.category]}${plan.exception ? `，均为${exceptionLabel}的异动车辆` : ""}。${["all", "inventory"].includes(plan.category) && (abnormal || pending) ? `其中异动 ${abnormal} 台、待交车 ${pending} 台，已计入库存。` : ""}${plan.topN ? `下方展示排名前 ${plan.topN} 的分组，总量与占比仍按完整筛选范围计算。` : ""}`
     : `${scope}的${CATEGORY_LABELS[plan.category]}为 0 台，暂无符合条件车辆。`;
   let inventoryBreakdown: AssistantResult["inventoryBreakdown"];
   if (plan.category === "all") summary = `${scope}共有资产 ${rows.length.toLocaleString()} 台，其中运营 ${operating.toLocaleString()} 台、库存 ${inventory.toLocaleString()} 台，运营率 ${operationRate}%。`;
@@ -405,7 +405,7 @@ export function assetResult(
               unit: "%",
             },
           ]
-        : [
+        : plan.category === "inventory" ? [
             {
               label: "其中可运营",
               value: selected.filter((v) =>
@@ -420,9 +420,9 @@ export function assetResult(
               ).length,
               unit: "台",
             },
-          ]),
+          ] : []),
       ...(plan.analysis === "briefing" ? [{ label: "其中可运营库存", value: selected.filter(v => isInventoryVehicle(v) && ["3", "可运营"].includes(v.operationStatus || "")).length, unit: "台" }, { label: "其中待运营库存", value: selected.filter(v => isInventoryVehicle(v) && ["4", "待运营"].includes(v.operationStatus || "")).length, unit: "台" }] : []),
-      ...(!["all", "operating"].includes(plan.category) || plan.analysis === "briefing"
+      ...(plan.category === "inventory" || plan.analysis === "briefing"
         ? [
             { label: "其中异动", value: abnormal, unit: "台" },
             { label: "其中待交车", value: pending, unit: "台" },

src/server/routes/asset-assistant/presentation.test.ts

@@ -23,3 +23,30 @@ test("opening inventory from a briefing leaves briefing mode and keeps inherited
  const next=applyAction(briefing,{type:"category",category:"inventory"},result(briefing));
  assert.equal(next.category,"inventory");assert.equal(next.analysis,"distribution");assert.deepEqual(next.filters,briefing.filters);
 });
+
+test("simple counts answer directly, including verified zero, while preserving scope", async () => {
+  const { simplifyCountAnswer } = await import("./presentation.js");
+  for (const count of [0, 7]) {
+    const r = result({...plan, category:"abnormal", groupBy:"none", view:"chart"});
+    r.outcome = count ? "complete" : "empty";
+    r.metrics = [{label:"异动车辆",value:count,unit:"台"},{label:"其中待交车",value:0,unit:"台"}];
+    r.scope = resultScope(r.plan,"测试公司");
+    assert.equal(simplifyCountAnswer(r,"当前有多少异动车辆？"),true);
+    assert.match(r.summary,new RegExp(`异动车辆为 ${count} 台`));
+    assert.match(r.summary,/测试公司.*4.5T.*嘉兴市/);
+    assert.equal(r.metrics.length,1);
+    assert.equal(r.outcome,"complete");
+    assert.deepEqual(r.suggestions,[]);
+  }
+});
+
+test("counts never collapse analysis requests, missing metrics or incomplete results", async () => {
+  const { simplifyCountAnswer } = await import("./presentation.js");
+  const make = () => ({...result({...plan,category:"abnormal",groupBy:"none",view:"chart"}), outcome:"complete" as const,metrics:[{label:"异动车辆",value:7,unit:"台"}]});
+  for (const question of ["各区域有多少异动车辆", "异动和待交车分别多少", "异动有多少，占比多少", "有多少异动车辆，查看明细", "分析异动车辆数量变化"]) {
+    assert.equal(simplifyCountAnswer(make(),question),false,question);
+  }
+  for (const override of [{outcome:"partial" as const},{warning:"源数据未接入"},{metrics:[]},{plan:{...make().plan,view:"list" as const}},{plan:{...make().plan,groupBy:"city" as const}}]) {
+    assert.equal(simplifyCountAnswer({...make(),...override},"当前有多少异动车辆？"),false);
+  }
+});

src/server/routes/asset-assistant/presentation.ts

@@ -1,5 +1,31 @@
 import { CATEGORY_LABELS, GROUP_LABELS, type AssistantResult, type QueryPlan } from "../../../shared/assets/assistant.js";
 
+/** Only simplify verified, single-scope count queries; never infer zero from missing data. */
+export function simplifyCountAnswer(result: AssistantResult, question: string): boolean {
+  const p = result.plan;
+  const metric = result.metrics.find(m => m.label === CATEGORY_LABELS[p.category] && m.unit === "台");
+  if (result.sections?.length || p.kind !== "assets" || p.responseMode ||
+      p.groupBy !== "none" || p.secondaryGroupBy || p.view !== "chart" ||
+      (p.analysis && p.analysis !== "distribution") || p.comparePrevious || p.topN ||
+      result.warning || result.unanswered?.length || result.gap ||
+      !["complete", "empty"].includes(result.outcome || "") ||
+      !metric || !Number.isFinite(metric.value) || metric.value < 0 ||
+      !/(多少|几台|几辆|数量|总数)/.test(question) ||
+      /(分别|各|分布|占比|比例|运营率|对比|比较|趋势|变化|原因|为什么|分析|明细|清单|列表|表格|图表|排行|最多|最少|以及|和|与|、)/.test(question)) return false;
+  const scope = result.scope || resultScope(p, null);
+  const filters = scope.filters.slice(1);
+  result.conciseCount = true;
+  result.summary = `${scope.company}${filters.length ? `，${filters.join("，")}` : ""}，当前${CATEGORY_LABELS[p.category]}为 ${metric.value.toLocaleString()} 台。`;
+  result.metrics = [metric];
+  result.suggestions = [];
+  // A successful zero count is an answer, not a query failure or missing dataset.
+  result.outcome = "complete";
+  delete result.presentation;
+  delete result.presentationStatus;
+  delete result.presentationWarning;
+  return true;
+}
+
 export function resultScope(plan: QueryPlan, subject: string | null): NonNullable<AssistantResult["scope"]> {
   const filters = [
     plan.kind === "flow" ? "交退换车业务" : CATEGORY_LABELS[plan.category],

src/shared/assets/assistant.ts

@@ -167,6 +167,7 @@ export type DemandGap = {
 };
 export type AssistantResult = {
   plan: QueryPlan;
+  conciseCount?: boolean;
   presentation?: ResultPresentation;
   presentationStatus?: "generated" | "fallback";
   presentationWarning?: string;