diff --git a/vehicle-data-platform/apps/web/src/pages/OpsQuality.tsx b/vehicle-data-platform/apps/web/src/pages/OpsQuality.tsx
index ee21dde8..08c19059 100644
--- a/vehicle-data-platform/apps/web/src/pages/OpsQuality.tsx
+++ b/vehicle-data-platform/apps/web/src/pages/OpsQuality.tsx
@@ -75,6 +75,33 @@ type OpsActionItem = {
   acceptance: string;
 };
 
+const customerEvidencePaths = [
+  {
+    title: '车辆不在线',
+    action: '看实时写入',
+    evidence: 'Redis 在线 Key、快速写入 pending、NATS ACK',
+    detail: '解释客户看到车辆离线时，是否是实时帧、在线 TTL 或快速写入链路中断。'
+  },
+  {
+    title: '轨迹缺数据',
+    action: '看历史消费',
+    evidence: 'Kafka Lag、历史批次、历史行待写',
+    detail: '解释轨迹回放或历史明细缺失时，数据是否卡在 Kafka、TDengine 或批量写入。'
+  },
+  {
+    title: '无法导出',
+    action: '看存储/API',
+    evidence: 'TDengine、MySQL、请求超时、运行版本',
+    detail: '解释客户导出失败、查询慢或字段缺失时，核心存储和 API 是否可用。'
+  },
+  {
+    title: '地图不可用',
+    action: '看高德配置',
+    evidence: 'Web JS Key、服务端 API Key、安全代理',
+    detail: '解释实时地图、轨迹回放和地理能力不可用时，地图配置是否完整且安全。'
+  }
+];
+
 const emptyCapacityMetrics: CapacityMetrics = {
   activeConnections: 0,
   kafkaLag: 0,
@@ -457,8 +484,8 @@ export function OpsQuality() {
   return (
     <div className="vp-page">
       <PageHeader
-        title="运维质量"
-        description="集中查看网关、消息队列、缓存、时序库、关系库、地图配置和运行版本状态"
+        title="运维证据层"
+        description="客户主流程外的链路、容量、存储和地图配置证据，用来解释车辆实时、轨迹、统计、导出或告警为何不可用。"
         actions={(
           <Space>
             <Button size="small" icon={<IconCopy />} aria-label="复制容量交接" disabled={!health} onClick={() => copyText(opsCapacityHandoffText(health), '运维容量交接')}>复制容量交接</Button>
@@ -468,6 +495,32 @@ export function OpsQuality() {
         )}
       />
 
+      <Card bordered className="vp-ops-evidence-layer-card">
+        <div className="vp-ops-evidence-layer-head">
+          <div>
+            <Typography.Title heading={5} style={{ margin: 0 }}>客户问题解释路径</Typography.Title>
+            <Typography.Text type="secondary">运维证据只在客户问题需要解释时打开，默认不参与车辆服务主流程。</Typography.Text>
+          </div>
+          <Tag color="blue">证据层</Tag>
+        </div>
+        <div className="vp-ops-evidence-path-grid">
+          {customerEvidencePaths.map((item) => (
+            <button
+              key={item.title}
+              type="button"
+              className="vp-ops-evidence-path-item"
+              aria-label={`客户问题解释路径 ${item.title} ${item.action}`}
+              onClick={() => Toast.info(item.evidence)}
+            >
+              <span className="vp-ops-evidence-path-title">{item.title}</span>
+              <span className="vp-ops-evidence-path-action">{item.action}</span>
+              <span className="vp-ops-evidence-path-evidence">{item.evidence}</span>
+              <span className="vp-ops-evidence-path-detail">{item.detail}</span>
+            </button>
+          ))}
+        </div>
+      </Card>
+
       <div className="vp-kpi-grid">
         <Card bordered loading={loading}>
           <div className="vp-kpi-value">{formatNumber(health?.kafkaLag)}</div>
diff --git a/vehicle-data-platform/apps/web/src/styles/global.css b/vehicle-data-platform/apps/web/src/styles/global.css
index cf0db422..fb191b0a 100644
--- a/vehicle-data-platform/apps/web/src/styles/global.css
+++ b/vehicle-data-platform/apps/web/src/styles/global.css
@@ -5624,6 +5624,69 @@ button.vp-realtime-command-item:focus-visible {
   line-height: 32px;
 }
 
+.vp-ops-evidence-layer-card {
+  margin-bottom: 16px;
+}
+
+.vp-ops-evidence-layer-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 14px;
+}
+
+.vp-ops-evidence-path-grid {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 12px;
+}
+
+.vp-ops-evidence-path-item {
+  min-height: 168px;
+  padding: 14px;
+  border: 1px solid var(--vp-border);
+  border-radius: var(--vp-radius);
+  background: #fbfcff;
+  color: inherit;
+  text-align: left;
+  cursor: pointer;
+  display: grid;
+  gap: 8px;
+  align-content: start;
+}
+
+.vp-ops-evidence-path-item:hover {
+  border-color: var(--vp-primary);
+  box-shadow: 0 10px 24px rgba(21, 101, 216, 0.08);
+}
+
+.vp-ops-evidence-path-title {
+  color: var(--vp-text);
+  font-size: 15px;
+  font-weight: 700;
+  line-height: 22px;
+}
+
+.vp-ops-evidence-path-action {
+  color: var(--vp-primary);
+  font-size: 20px;
+  font-weight: 700;
+  line-height: 28px;
+}
+
+.vp-ops-evidence-path-evidence {
+  color: var(--vp-text);
+  font-size: 13px;
+  line-height: 20px;
+}
+
+.vp-ops-evidence-path-detail {
+  color: var(--vp-text-muted);
+  font-size: 13px;
+  line-height: 20px;
+}
+
 .vp-risk-runbook {
   margin-top: 12px;
   padding: 12px;
@@ -9865,6 +9928,7 @@ button.vp-realtime-command-item:focus-visible {
   .vp-notification-reachability-grid,
   .vp-sla-summary,
   .vp-risk-grid,
+  .vp-ops-evidence-path-grid,
   .vp-ops-action-grid,
   .vp-alert-ops-grid,
   .vp-stat-workspace,
diff --git a/vehicle-data-platform/apps/web/src/test/App.test.tsx b/vehicle-data-platform/apps/web/src/test/App.test.tsx
index db35f807..cc78c585 100644
--- a/vehicle-data-platform/apps/web/src/test/App.test.tsx
+++ b/vehicle-data-platform/apps/web/src/test/App.test.tsx
@@ -4391,7 +4391,7 @@ test('renders notification rules as a standalone operations page', async () => {
   expect(window.location.hash).toBe('#/detail?keyword=VIN-RULES-001');
 });
 
-test('renders ops quality as a standalone runtime health page', async () => {
+test('renders ops quality as a separated evidence layer for customer vehicle service', async () => {
   window.history.replaceState(null, '', '/#/ops-quality');
   const writeText = vi.fn(() => Promise.resolve());
   Object.defineProperty(navigator, 'clipboard', {
@@ -4512,7 +4512,14 @@ test('renders ops quality as a standalone runtime health page', async () => {
 
   render(<App />);
 
-  expect(await screen.findByRole('heading', { name: '运维质量' })).toBeInTheDocument();
+  expect(await screen.findByRole('heading', { name: '运维证据层' })).toBeInTheDocument();
+  expect(screen.getByText('客户主流程外的链路、容量、存储和地图配置证据，用来解释车辆实时、轨迹、统计、导出或告警为何不可用。')).toBeInTheDocument();
+  expect(screen.getByText('客户问题解释路径')).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '客户问题解释路径 车辆不在线 看实时写入' })).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '客户问题解释路径 轨迹缺数据 看历史消费' })).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '客户问题解释路径 无法导出 看存储/API' })).toBeInTheDocument();
+  expect(screen.getByRole('button', { name: '客户问题解释路径 地图不可用 看高德配置' })).toBeInTheDocument();
+  expect(screen.getByText('运维证据只在客户问题需要解释时打开，默认不参与车辆服务主流程。')).toBeInTheDocument();
   expect(screen.getByText('platform-ops-test')).toBeInTheDocument();
   expect(screen.getAllByText('42').length).toBeGreaterThanOrEqual(1);
   expect(screen.getAllByText('1,234').length).toBeGreaterThanOrEqual(1);