diff --git a/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.test.tsx b/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.test.tsx
index a7da6faf..ba8eec88 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.test.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.test.tsx
@@ -112,6 +112,7 @@ test('starts without a selection and supports expand, collapse, reselection, and
   const queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
   const view = render(<QueryClientProvider client={queryClient}><MemoryRouter future={ROUTER_FUTURE}><MonitorPage /></MemoryRouter></QueryClientProvider>);
   const workspace = view.container.querySelector('.v2-monitor-workspace')!;
+  const monitorPage = view.container.querySelector('.v2-monitor-page')!;
   const firstVehicle = screen.getByRole('button', { name: /粤A12345 LTEST000000000001/ });
   const secondVehicle = screen.getByRole('button', { name: /粤B67890 LTEST000000000002/ });
 
@@ -136,6 +137,7 @@ test('starts without a selection and supports expand, collapse, reselection, and
   expect(liveStatus).toHaveTextContent('最近同步等待数据');
   expect(workspace).not.toHaveClass('is-detail-open');
   expect(workspace).not.toHaveClass('is-detail-collapsed');
+  expect(monitorPage).toHaveClass('is-map-mode');
   expect(firstVehicle).not.toHaveClass('is-selected');
   expect(screen.queryByRole('button', { name: '取消选择车辆' })).not.toBeInTheDocument();
   expect(screen.getByTestId('fleet-map')).toHaveAttribute('data-selected-vin', '');
@@ -149,6 +151,7 @@ test('starts without a selection and supports expand, collapse, reselection, and
   fireEvent.click(firstVehicle);
   expect(await screen.findByRole('region', { name: '粤A12345车辆详情' })).toBeInTheDocument();
   expect(workspace).toHaveClass('is-detail-open');
+  expect(monitorPage).toHaveClass('is-map-mode');
   expect(firstVehicle).toHaveClass('is-selected');
   expect(screen.getByRole('button', { name: '取消选择车辆' })).toBeInTheDocument();
   expect(view.container.querySelector('.v2-vehicle-detail')).toHaveClass('semi-card');
@@ -203,6 +206,28 @@ test('starts without a selection and supports expand, collapse, reselection, and
   expect(secondVehicle).toHaveClass('is-selected');
 });
 
+test('returns the monitor scroll owner to the command bar when changing views', async () => {
+  vi.spyOn(api, 'vehicleRealtime').mockResolvedValue({ items: vehicles, total: 2, limit: 50, offset: 0 });
+  const queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  const view = render(
+    <main className="v2-content" data-testid="monitor-scroll-owner">
+      <QueryClientProvider client={queryClient}><MemoryRouter future={ROUTER_FUTURE}><MonitorPage /></MemoryRouter></QueryClientProvider>
+    </main>
+  );
+  const scrollOwner = screen.getByTestId('monitor-scroll-owner');
+  const monitorPage = view.container.querySelector('.v2-monitor-page')!;
+
+  scrollOwner.scrollTop = 180;
+  fireEvent.click(screen.getByRole('tab', { name: /列表/ }));
+  expect(scrollOwner.scrollTop).toBe(0);
+  expect(monitorPage).toHaveClass('is-list-mode');
+
+  scrollOwner.scrollTop = 120;
+  fireEvent.click(screen.getByRole('tab', { name: /地图/ }));
+  expect(scrollOwner.scrollTop).toBe(0);
+  expect(monitorPage).toHaveClass('is-map-mode');
+});
+
 test('restores URL-backed monitor context and carries it into every vehicle workflow', async () => {
   const queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
   const entry = '/monitor?keyword=%E7%B2%A4A12345&protocol=JT808&status=online&selectedVin=LTEST000000000001&detail=collapsed&zoom=13&bounds=113.100000%2C23.000000%2C113.400000%2C23.300000';
diff --git a/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.tsx b/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.tsx
index f8bba80e..28662e24 100644
--- a/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.tsx
+++ b/vehicle-data-platform/apps/web/src/v2/pages/MonitorPage.tsx
@@ -204,6 +204,7 @@ const MemoFleetMap = memo(FleetMap);
 
 export default function MonitorPage() {
   const [routeParams, setRouteParams] = useSearchParams();
+  const pageRef = useRef<HTMLDivElement>(null);
   const initialContextRef = useRef(parseMonitorRouteContext(routeParams));
   const initialContext = initialContextRef.current;
   const mobileLayout = useMobileLayout(760);
@@ -280,11 +281,16 @@ export default function MonitorPage() {
   const selected = selectedVin
     ? rows.find((vehicle) => vehicle.vin === selectedVin) ?? selectedVehicle.data?.items[0]
     : undefined;
+  const resetMonitorScroll = useCallback(() => {
+    const scrollOwner = pageRef.current?.closest<HTMLElement>('.v2-content');
+    if (scrollOwner) scrollOwner.scrollTop = 0;
+  }, []);
   const selectVehicle = useCallback((vin: string) => {
+    resetMonitorScroll();
     setSelectedVin(vin);
     setDetailOpen(true);
     setMode('map');
-  }, []);
+  }, [resetMonitorScroll]);
   const clearSelection = useCallback(() => {
     setSelectedVin('');
     setDetailOpen(false);
@@ -293,9 +299,10 @@ export default function MonitorPage() {
   const collapseDetail = useCallback(() => setDetailOpen(false), []);
   const expandDetail = useCallback(() => setDetailOpen(true), []);
   const changeMonitorMode = useCallback((nextMode: 'map' | 'list') => {
+    resetMonitorScroll();
     setMode(nextMode);
     if (nextMode === 'list') setDetailOpen(false);
-  }, []);
+  }, [resetMonitorScroll]);
   const clearFilters = useCallback(() => {
     setKeyword('');
     setProtocol('');
@@ -314,7 +321,7 @@ export default function MonitorPage() {
   const lastSyncAt = vehicles.dataUpdatedAt ? new Date(vehicles.dataUpdatedAt) : undefined;
 
   return (
-    <div className="v2-monitor-page">
+    <div ref={pageRef} className={`v2-monitor-page is-${mode}-mode`}>
       <Card className="v2-filterbar" bodyStyle={{ padding: 0 }} aria-label="车辆筛选">
         <div id="monitor-filter-fields" className={`v2-monitor-filter-fields${filtersCollapsed ? ' is-mobile-collapsed' : ''}`} aria-label="筛选条件">
           <div className={`v2-search-field${searchTerms.length > 1 ? ' is-batch' : ''}`}>
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 14d2295d..b9c851af 100644
--- a/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
+++ b/vehicle-data-platform/apps/web/src/v2/styles/workspace.css
@@ -12797,6 +12797,223 @@
   .v2-kpi strong {
     margin-top: 7px;
   }
+
+  .v2-monitor-mobile-cards {
+    gap: 6px;
+    padding: 6px;
+  }
+
+  .v2-monitor-mobile-cards > .v2-monitor-mobile-card.semi-card {
+    contain-intrinsic-size: auto 132px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body {
+    padding: 7px 9px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header {
+    min-height: 34px;
+    align-items: center;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header strong {
+    font-size: 14px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header span {
+    font-size: 9px;
+  }
+
+  .v2-monitor-card-heading-actions > b {
+    font-size: 15px;
+  }
+
+  .v2-monitor-card-heading-actions > .v2-monitor-card-locate.semi-button {
+    height: 28px;
+    min-height: 28px;
+  }
+
+  .v2-monitor-mobile-cards dl {
+    gap: 2px 9px;
+    margin-top: 5px;
+    padding-top: 5px;
+  }
+
+  .v2-monitor-mobile-cards dl > div {
+    min-height: 24px;
+  }
+
+  .v2-monitor-mobile-cards dl > div.is-address {
+    min-height: 28px;
+  }
+
+  .v2-monitor-mobile-cards dl > div.is-address .semi-button {
+    min-height: 26px;
+    height: 26px;
+  }
+}
+
+@media (max-width: 760px) and (max-height: 500px) and (orientation: landscape) {
+  .v2-monitor-page {
+    gap: 6px;
+    padding: 6px 8px;
+  }
+
+  .v2-monitor-page > .v2-filterbar > .semi-card-body {
+    padding: 4px;
+  }
+
+  .v2-monitor-filter-actions {
+    grid-template-columns: 64px minmax(0, 1fr) 38px;
+    gap: 5px;
+  }
+
+  .v2-monitor-filter-toggle.semi-button {
+    width: 64px;
+    height: 36px;
+  }
+
+  .v2-monitor-mode.v2-segmented-tabs {
+    height: 36px;
+  }
+
+  .v2-monitor-mode.v2-segmented-tabs > .semi-button {
+    height: 30px;
+    font-size: 11px;
+  }
+
+  .v2-monitor-filter-actions > .v2-monitor-mobile-entry.semi-button {
+    width: 38px;
+    height: 36px;
+  }
+
+  .v2-monitor-page > .v2-kpis > .semi-card-body {
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+  }
+
+  .v2-monitor-page > .v2-kpis .v2-kpi.is-support {
+    display: none;
+  }
+
+  .v2-monitor-page > .v2-kpis .v2-kpi {
+    min-height: 50px;
+    padding: 5px 10px;
+  }
+
+  .v2-monitor-page > .v2-kpis .v2-kpi small {
+    font-size: 9px;
+  }
+
+  .v2-monitor-page > .v2-kpis .v2-kpi strong {
+    margin-top: 3px;
+    font-size: 18px;
+  }
+
+  .v2-monitor-page > .v2-kpis .v2-kpi strong em {
+    font-size: 8px;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > .v2-workspace-panel-header {
+    min-height: 35px;
+    align-items: center;
+    padding: 3px 9px;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > .v2-workspace-panel-header .v2-workspace-panel-copy {
+    gap: 0;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > .v2-workspace-panel-header .v2-workspace-panel-copy > h5 {
+    font-size: 12px;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > .v2-workspace-panel-header .v2-workspace-panel-copy > .semi-typography:not(h5) {
+    display: none;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > .v2-workspace-panel-header .v2-workspace-panel-meta {
+    font-size: 9px;
+  }
+
+  .v2-monitor-mobile-cards {
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    align-content: start;
+    gap: 5px;
+    padding: 5px;
+  }
+
+  .v2-monitor-mobile-cards > .v2-monitor-mobile-card.semi-card {
+    contain-intrinsic-size: auto 92px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body {
+    padding: 5px 7px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header {
+    min-height: 29px;
+    gap: 5px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header strong {
+    font-size: 12px;
+  }
+
+  .v2-monitor-mobile-card .semi-card-body > header span {
+    font-size: 8px;
+  }
+
+  .v2-monitor-card-heading-actions {
+    gap: 5px !important;
+  }
+
+  .v2-monitor-card-heading-actions > b {
+    font-size: 13px;
+  }
+
+  .v2-monitor-card-heading-actions > .v2-monitor-card-locate.semi-button {
+    width: 44px;
+    height: 26px;
+    min-height: 26px;
+    padding-inline: 5px;
+    font-size: 9px;
+  }
+
+  .v2-monitor-mobile-cards dl {
+    gap: 1px 7px;
+    margin-top: 3px;
+    padding-top: 3px;
+  }
+
+  .v2-monitor-mobile-cards dl > div {
+    min-height: 20px;
+    gap: 4px;
+  }
+
+  .v2-monitor-mobile-cards dl > div.is-address {
+    display: none;
+  }
+
+  .v2-monitor-mobile-cards dt {
+    font-size: 7px;
+  }
+
+  .v2-monitor-mobile-cards dd {
+    font-size: 9px;
+  }
+
+  .v2-monitor-mobile-cards dd code {
+    font-size: 7px;
+  }
+
+  .v2-monitor-table-panel > .semi-card-body > footer {
+    bottom: calc(58px + env(safe-area-inset-bottom));
+  }
+
+  .v2-monitor-page > .v2-event-strip {
+    display: none;
+  }
 }
 
 /* Semi UI workspace migration: monitor vehicle inspector and live status rail. */