diff --git a/vehicle-data-platform/apps/web/src/v2/domain/telemetry.test.ts b/vehicle-data-platform/apps/web/src/v2/domain/telemetry.test.ts
index 0f42c51c..be8306a5 100644
--- a/vehicle-data-platform/apps/web/src/v2/domain/telemetry.test.ts
+++ b/vehicle-data-platform/apps/web/src/v2/domain/telemetry.test.ts
@@ -18,5 +18,6 @@ describe('latest telemetry presentation', () => {
   it('keeps telemetry timestamps compact for local and RFC3339 values', () => {
     expect(formatTelemetryTime('2026-07-14T09:24:34+08:00')).toBe('09:24:34');
     expect(formatTelemetryTime('2026-07-14 09:24:34')).toBe('09:24:34');
+    expect(formatTelemetryTime('2026-07-18T02:57:02Z')).toBe('10:57:02');
   });
 });
diff --git a/vehicle-data-platform/apps/web/src/v2/domain/telemetry.ts b/vehicle-data-platform/apps/web/src/v2/domain/telemetry.ts
index 18891b51..4504329f 100644
--- a/vehicle-data-platform/apps/web/src/v2/domain/telemetry.ts
+++ b/vehicle-data-platform/apps/web/src/v2/domain/telemetry.ts
@@ -1,4 +1,4 @@
-import { formatZhNumber } from './formatters';
+import { formatShanghaiDateTime, formatZhNumber } from './formatters';
 
 export function formatTelemetryValue(value: unknown, displayValue?: string) {
   if (displayValue) return displayValue;
@@ -18,5 +18,6 @@ export function telemetryQualityLabel(quality: string) {
 
 export function formatTelemetryTime(value?: string) {
   if (!value) return '—';
-  return value.match(/[T ](\d{2}:\d{2}:\d{2})/)?.[1] ?? value;
+  const local = formatShanghaiDateTime(value);
+  return local.match(/[T ](\d{2}:\d{2}:\d{2})/)?.[1] ?? local;
 }
diff --git a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
index 165fa6b3..a1c4feb7 100644
--- a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.test.tsx
@@ -77,11 +77,14 @@ test('marks the content as a full-height track workspace after sidebar navigatio
     <Routes><Route element={<AppShell />}><Route path="*" element={<span>页面内容</span>} /></Route></Routes>
   </MemoryRouter>);
 
-  expect(document.querySelector('.v2-content')).not.toHaveClass('is-track-workspace');
+  const content = document.querySelector<HTMLElement>('.v2-content')!;
+  expect(content).not.toHaveClass('is-track-workspace');
+  content.scrollTop = 240;
   scrollTo.mockClear();
   fireEvent.click(screen.getByRole('link', { name: '轨迹回放' }));
 
   await waitFor(() => expect(document.querySelector('.v2-content')).toHaveClass('is-track-workspace'));
+  expect(document.querySelector<HTMLElement>('.v2-content')?.scrollTop).toBe(0);
   expect(scrollTo).toHaveBeenCalledWith({ top: 0, left: 0, behavior: 'auto' });
   expect(screen.getByRole('heading', { name: '轨迹回放' })).toBeInTheDocument();
 });
diff --git a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
index 27a62cee..9901a670 100644
--- a/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx
@@ -124,12 +124,17 @@ export function AppShell() {
   const roleLabel = { viewer: '只读', operator: '处置员', admin: '管理员', customer: '客户' }[session.role];
   useEffect(() => scheduleIdleRoutePreloads({ activePathname: activeRoutePath }), [activeRoutePath]);
   useLayoutEffect(() => {
-    const content = document.querySelector<HTMLElement>('.v2-content');
-    if (!content) return;
     const reset = () => {
-      content.scrollTop = 0;
-      content.scrollLeft = 0;
-      content.scrollTo?.({ top: 0, left: 0, behavior: 'auto' });
+      for (const content of document.querySelectorAll<HTMLElement>('.v2-content')) {
+        content.scrollTop = 0;
+        content.scrollLeft = 0;
+        content.scrollTo?.({ top: 0, left: 0, behavior: 'auto' });
+        const routeRoot = content.firstElementChild;
+        if (routeRoot instanceof HTMLElement) {
+          routeRoot.scrollTop = 0;
+          routeRoot.scrollLeft = 0;
+        }
+      }
     };
     reset();
     let trailingFrame = 0;
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.test.tsx b/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.test.tsx
index bd893cba..516801f5 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.test.tsx
@@ -55,7 +55,7 @@ test('polls lightweight single-vehicle realtime data and passes its report inter
   const movedRealtime = { ...initialRealtime, longitude: 113.28, latitude: 23.15, lastSeen: '2026-07-16 10:00:30' };
   vi.spyOn(api, 'vehicleDetail').mockResolvedValue(detail);
   const realtimeSpy = vi.spyOn(api, 'vehicleRealtime').mockResolvedValue({ items: [movedRealtime], total: 1, limit: 1, offset: 0 });
-  vi.spyOn(api, 'latestTelemetry').mockResolvedValue({ values: [], categories: [], scannedFrames: 0 } as never);
+  vi.spyOn(api, 'latestTelemetry').mockResolvedValue({ values: [], categories: [], scannedFrames: 0, asOf: '2026-07-16T02:00:00Z' } as never);
   const sourceEvidence = vi.spyOn(api, 'vehicleSourceEvidence').mockResolvedValue({
     vin: initialRealtime.vin, plate: initialRealtime.plate, mileageDate: '2026-07-16',
     recommendedLocationProtocol: 'JT808', recommendedLocationLabel: 'JT808', locationConflict: false,
@@ -84,6 +84,8 @@ test('polls lightweight single-vehicle realtime data and passes its report inter
   expect(commandCard?.querySelector('.v2-live-grid > div:first-child')).toHaveTextContent('速度');
   expect(commandCard?.querySelector('.v2-live-grid > div:nth-child(2)')).toHaveTextContent('SOC');
   expect(commandCard?.querySelector('.v2-live-grid > div:nth-child(4)')).toHaveTextContent('当日里程');
+  expect(screen.getByLabelText('粤A12345 车辆档案')).toHaveFocus();
+  expect(screen.getByText('扫描 0 帧 · 上海时间 10:00:00')).toBeInTheDocument();
   expect(screen.getByRole('heading', { name: '最新上报', level: 5 })).toBeInTheDocument();
   expect(screen.getByRole('heading', { name: '实时位置', level: 5 })).toBeInTheDocument();
   expect(screen.getByRole('heading', { name: '最近事件', level: 5 })).toBeInTheDocument();
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.tsx b/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.tsx
index 7c2b5ff0..f685e44e 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/VehiclePage.tsx
@@ -17,6 +17,7 @@ import { isValidAMapCoordinate } from '../../integrations/amap';
 import { FleetMap } from '../map/FleetMap';
 import { InlineError, PageLoading } from '../shared/AsyncState';
 import { MonitorReturnBar } from '../shared/MonitorReturnBar';
+import { PlatformTime } from '../shared/PlatformTime';
 import { SegmentedTabs } from '../shared/SegmentedTabs';
 import { VehicleSourceEvidencePanel } from '../shared/VehicleSourceEvidencePanel';
 import { WorkspacePanelHeader } from '../shared/WorkspacePanelHeader';
@@ -34,15 +35,17 @@ const operationStatusLabels = { unknown: '待维护', active: '运营中', inact
 const SINGLE_VEHICLE_REFRESH_MS = 10_000;
 const VehicleSearch = lazy(() => import('./VehicleSearchWorkspace'));
 
-function resetWorkspaceScroll() {
-  const targets = [
+function resetWorkspaceScroll(routeRoot?: HTMLElement | null) {
+  const targets = new Set<Element | null>([
+    routeRoot ?? null,
+    routeRoot?.closest('.v2-content') ?? null,
     document.scrollingElement,
     document.documentElement,
     document.body,
     document.querySelector<HTMLElement>('.v2-shell'),
-    document.querySelector<HTMLElement>('.v2-main'),
-    document.querySelector<HTMLElement>('.v2-content')
-  ];
+    document.querySelector<HTMLElement>('.v2-main')
+  ]);
+  for (const content of document.querySelectorAll<HTMLElement>('.v2-content')) targets.add(content);
   for (const target of targets) {
     if (!(target instanceof HTMLElement)) continue;
     target.scrollTop = 0;
@@ -52,11 +55,11 @@ function resetWorkspaceScroll() {
 }
 
 function revealVehicleIdentity(root: HTMLElement | null) {
-  resetWorkspaceScroll();
+  resetWorkspaceScroll(root);
   if (!root) return;
   root.scrollTop = 0;
   root.scrollLeft = 0;
-  root.scrollIntoView?.({ behavior: 'auto', block: 'start', inline: 'nearest' });
+  root.focus({ preventScroll: true });
 }
 
 function eventTimeLabel(value?: string) {
@@ -296,7 +299,7 @@ function TelemetryPanel({ data, pending, error }: { data?: LatestTelemetryRespon
       <SegmentedTabs className="v2-telemetry-categories" ariaLabel="字段分类" value={activeCategory} onChange={setSelectedCategory} items={categories} />
     </div>
     {state}
-    <footer><b>来源</b>{indexed.sources.map((source) => <span key={`${source.protocol}-${source.endpoint ?? ''}`} title={source.endpoint}>{source.protocol}</span>)}<small>扫描 {data?.scannedFrames ?? 0} 帧 · 截至 {formatTelemetryTime(data?.asOf)}</small></footer>
+    <footer><b>来源</b>{indexed.sources.map((source) => <span key={`${source.protocol}-${source.endpoint ?? ''}`} title={source.endpoint}>{source.protocol}</span>)}<small>扫描 {data?.scannedFrames ?? 0} 帧 · 上海时间 {formatTelemetryTime(data?.asOf)}</small></footer>
     <SideSheet
       className="v2-telemetry-value-sidesheet"
       visible={Boolean(inspectedValue)}
@@ -450,7 +453,7 @@ function VehicleRecord({ detail, liveRealtime, telemetry, telemetryPending, tele
       for (const eventName of interactionEvents) window.removeEventListener(eventName, cancelEntryReset, true);
     };
   }, [detail.vin]);
-  return <div ref={recordRootRef} className={`v2-vehicle-record-page${mobileLayout ? ' is-mobile-layout' : ''}`}>
+  return <div ref={recordRootRef} className={`v2-vehicle-record-page${mobileLayout ? ' is-mobile-layout' : ''}`} tabIndex={-1} aria-label={`${fmt(identity?.plate || realtime?.plate)} 车辆档案`}>
     <MonitorReturnBar />
     <Card className="v2-identity-band v2-record-card v2-live-card v2-live-overview v2-vehicle-command-card" bodyStyle={{ padding: 0 }}>
       <div className="v2-vehicle-command-header">
@@ -471,7 +474,7 @@ function VehicleRecord({ detail, liveRealtime, telemetry, telemetryPending, tele
         <WorkspacePanelHeader
           title={<span id="vehicle-live-heading">最新上报</span>}
           description="关键运行指标与推荐数据来源"
-          meta={<span className="v2-live-report-meta"><i className={realtime?.online ? 'is-online' : ''} />{realtime?.online ? '实时在线' : '当前离线'} · <IconClock />{fmt(realtime?.lastSeen || identity?.lastSeen)}</span>}
+          meta={<span className="v2-live-report-meta"><i className={realtime?.online ? 'is-online' : ''} />{realtime?.online ? '实时在线' : '当前离线'} · <IconClock /><PlatformTime value={realtime?.lastSeen || identity?.lastSeen} /></span>}
         />
         <div className="v2-live-grid" role="list" aria-label="车辆实时指标">
           <div role="listitem"><small>速度</small><strong>{availableMetric(realtime?.speedKmh, realtime?.speedAvailable)}<em>km/h</em></strong><span>实时车速</span></div>
@@ -497,7 +500,7 @@ function VehicleRecord({ detail, liveRealtime, telemetry, telemetryPending, tele
             meta={realtime?.online ? '实时跟随' : '保留最后位置'}
           />
           <FleetMap vehicles={mapVehicles} selectedVin={hasLocation ? detail.vin : undefined} onSelect={() => undefined} />
-          <footer><Button theme="borderless" type="tertiary" className="v2-map-source-link" title="展开全部位置来源" aria-label="查看全部位置来源" icon={<IconMapPin />} onClick={() => setSourceEvidenceOpen(true)}>{hasLocation && realtime ? `实时坐标 ${realtime.longitude.toFixed(6)}, ${realtime.latitude.toFixed(6)}` : '暂无有效实时坐标'}{identity?.locationText ? ` · 档案区域 ${identity.locationText}` : ''}</Button><time>更新时间：{fmt(realtime?.lastSeen)}</time></footer>
+          <footer><Button theme="borderless" type="tertiary" className="v2-map-source-link" title="展开全部位置来源" aria-label="查看全部位置来源" icon={<IconMapPin />} onClick={() => setSourceEvidenceOpen(true)}>{hasLocation && realtime ? `实时坐标 ${realtime.longitude.toFixed(6)}, ${realtime.latitude.toFixed(6)}` : '暂无有效实时坐标'}{identity?.locationText ? ` · 档案区域 ${identity.locationText}` : ''}</Button><span className="v2-map-update-time">更新时间：<PlatformTime value={realtime?.lastSeen} /></span></footer>
         </Card>
       </div>
       <div id={vehicleSectionIDs.events} tabIndex={-1} className="v2-record-section-anchor"><Events detail={detail} /></div>
@@ -528,7 +531,7 @@ export default function VehiclePage() {
     let trailingFrame = 0;
     const frame = window.requestAnimationFrame(() => {
       resetWorkspaceScroll();
-      trailingFrame = window.requestAnimationFrame(resetWorkspaceScroll);
+      trailingFrame = window.requestAnimationFrame(() => resetWorkspaceScroll());
     });
     const shortTimer = window.setTimeout(resetWorkspaceScroll, 120);
     const settledTimer = window.setTimeout(resetWorkspaceScroll, 360);
diff --git a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
index 176f91aa..ce5efd35 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -2199,17 +2199,19 @@
   }
 }
 
+.v2-shell,
+.v2-main,
+.v2-content,
+.v2-vehicle-record-page {
+  overflow-anchor: none;
+}
+
 .v2-vehicle-record-page {
   overflow: visible !important;
-  overflow-anchor: none;
 }
 
-.v2-content {
-  overflow-anchor: none;
-}
-
-.v2-content:has(> .v2-vehicle-record-page) {
-  overflow-anchor: none;
+.v2-vehicle-record-page:focus {
+  outline: 0;
 }
 
 .v2-track-current-card.semi-card {