feat(web): redesign fleet cards and instance workspace

apps/web/src/app-shell.integration.test.tsx

@@ -87,10 +87,8 @@ describe('React AppShell and Fleet vertical slice', () => {
       '/instances/alpha/overview',
     );
     expect(
-      within(screen.getByRole('row', { name: /Bravo/ }))
-        .getByRole('link', { name: '打开 Bravo 的源站' })
-        .getAttribute('href'),
-    ).toBe('http://bravo.example:8080');
+      within(screen.getByRole('row', { name: /Bravo/ })).getByText('http://bravo.example:8080'),
+    ).toBeTruthy();
     expect(screen.getByText('版本 0.1.0')).toBeTruthy();
     expect(
       consoleError.mock.calls.some((call) =>
@@ -159,7 +157,7 @@ describe('React AppShell and Fleet vertical slice', () => {
     expect(within(card).getByText('13800138000')).toBeTruthy();
     expect(await within(card).findByText('收到')).toBeTruthy();
     expect(within(card).getByText('13900139000')).toBeTruthy();
-    expect(within(card).getByText(/这是一条用于聚合页展示/)).toBeTruthy();
+    expect(within(card).queryByText(/这是一条用于聚合页展示/)).toBeNull();
     expect(within(card).getByText(/2026/)).toBeTruthy();
     expect(within(card).queryByText('能力未知')).toBeNull();
     expect(
@@ -248,6 +246,37 @@ describe('React AppShell and Fleet vertical slice', () => {
     );
   });
 
+  it('renders the route owner without waiting for optional Fleet resource enrichment', async () => {
+    const instanceDataSource: InstanceDataSource = {
+      get: vi.fn().mockResolvedValue({
+        id: 'bravo',
+        name: 'Bravo',
+        origin: 'http://bravo.example:8080',
+        tags: [],
+        revision: 1,
+        credentialConfigured: false,
+      }),
+      create: vi.fn(),
+      update: vi.fn(),
+      testConnection: vi.fn(),
+      delete: vi.fn(),
+    };
+    const fleetDataSource = source(() => new Promise<FleetSnapshot>(() => undefined));
+
+    render(
+      <AppShell
+        pathname="/instances/bravo/overview"
+        instanceDataSource={instanceDataSource}
+        fleetDataSource={fleetDataSource}
+      />,
+    );
+
+    expect(await screen.findByRole('heading', { level: 1, name: 'Bravo' })).toBeTruthy();
+    expect(screen.getByRole('status', { name: '资源摘要状态' }).textContent).toContain(
+      '正在加载资源摘要',
+    );
+  });
+
   it('supports accessible search, status filtering, sorting, and visible selection', async () => {
     const user = userEvent.setup();
     render(<AppShell pathname="/fleet" fleetDataSource={source(async () => snapshot)} />);
@@ -355,9 +384,8 @@ describe('React AppShell and Fleet vertical slice', () => {
     );
     expect(screen.getByRole('heading', { name: '短信管理' })).toBeTruthy();
     expect(screen.getByText('Owner modem')).toBeTruthy();
-    expect(screen.getByRole('link', { name: '打开源站' }).getAttribute('href')).toBe(
-      'https://owner.example',
-    );
+    expect(screen.getByText('源站已由控制平面托管')).toBeTruthy();
+    expect(screen.queryByRole('link', { name: '打开源站' })).toBeNull();
 
     rerender(<AppShell pathname="/instances/someone-else/messages" instance={instance} />);
     expect(screen.queryByText('Owner modem')).toBeNull();

apps/web/src/app-shell.tsx

@@ -78,6 +78,13 @@ export interface InstanceContext {
   status: 'online' | 'offline' | 'auth-required' | 'degraded' | 'unknown';
   authentication: 'authenticated' | 'auth-required' | 'unknown';
   freshness: 'fresh' | 'stale' | 'expired' | 'unknown';
+  resources?: Readonly<{
+    cpuPercent?: number;
+    memoryPercent?: number;
+    maxTemperatureCelsius?: number;
+    phoneNumbers?: readonly string[];
+  }>;
+  resourceSummaryState?: 'loading' | 'ready' | 'unavailable';
 }
 export interface AppShellProps {
   pathname: string;
@@ -440,8 +447,13 @@ export function AppShell({
       setInstanceLoading(false);
       return;
     }
+    const controller = new AbortController();
     let active = true;
     setInstanceLoading(true);
+    const fleetLoad = (fleetDataSource ?? defaultFleetDataSource).load(controller.signal).then(
+      (fleet) => ({ ok: true as const, fleet }),
+      () => ({ ok: false as const }),
+    );
     void resolvedInstanceDataSource.get(routeInstanceId).then(
       (owner) => {
         if (!active) return;
@@ -457,8 +469,50 @@ export function AppShell({
           status: 'unknown',
           authentication: 'unknown',
           freshness: 'unknown',
+          resourceSummaryState: 'loading',
         });
         setInstanceLoading(false);
+
+        void fleetLoad.then((result) => {
+          if (!active) return;
+          if (!result.ok) {
+            setLoadedInstance((current) =>
+              current?.id === routeInstanceId
+                ? { ...current, resourceSummaryState: 'unavailable' }
+                : current,
+            );
+            return;
+          }
+          const fleet = result.fleet;
+          const fleetOwner = fleet.instances.find((candidate) => candidate.id === routeInstanceId);
+          const status = fleet.statuses.get(routeInstanceId);
+          const routeStatus = !status
+            ? 'unknown'
+            : !status.reachable
+              ? 'offline'
+              : status.authenticated === false
+                ? 'auth-required'
+                : 'online';
+          const freshness = status?.summary?.freshness;
+          setLoadedInstance({
+            id: owner.id,
+            name: owner.name,
+            origin: fleetOwner?.url ?? owner.origin,
+            status: routeStatus,
+            authentication:
+              status?.authenticated === true
+                ? 'authenticated'
+                : status?.authenticated === false
+                  ? 'auth-required'
+                  : 'unknown',
+            freshness:
+              freshness === 'fresh' || freshness === 'stale' || freshness === 'expired'
+                ? freshness
+                : 'unknown',
+            ...(status?.summary?.resources ? { resources: status.summary.resources } : {}),
+            resourceSummaryState: status ? 'ready' : 'unavailable',
+          });
+        });
       },
       () => {
         if (!active) return;
@@ -468,8 +522,15 @@ export function AppShell({
     );
     return () => {
       active = false;
+      controller.abort();
     };
-  }, [instance, resolvedInstanceDataSource, routeInstanceId]);
+  }, [
+    defaultFleetDataSource,
+    fleetDataSource,
+    instance,
+    resolvedInstanceDataSource,
+    routeInstanceId,
+  ]);
 
   const routeInstance = instance?.id === routeInstanceId ? instance : loadedInstance;
   const refresh = useControlPlaneEvents(

apps/web/src/fleet/fleet-page.test.tsx

@@ -18,11 +18,9 @@ const snapshot: FleetSnapshot = {
       'alpha',
       {
         instanceId: 'alpha',
-        connectivity: 'online',
-        authentication: 'authenticated',
-        freshness: 'fresh',
-        capabilities: ['overview', 'messages'],
-        anomalies: [],
+        reachable: true,
+        authenticated: true,
+        summary: { freshness: 'fresh', resources: { cpuPercent: 24, memoryPercent: 51 } },
       },
     ],
   ]),
@@ -41,5 +39,16 @@ describe('FleetPage card navigation', () => {
     expect(within(card).getByRole('link', { name: '编辑 Alpha modem' })).toBeTruthy();
     expect(within(card).getByRole('button', { name: '删除 Alpha modem' })).toBeTruthy();
     expect(within(card).queryByRole('link', { name: /查看.*短信/ })).toBeNull();
+    expect(screen.getByRole('region', { name: '实例状态摘要' }).textContent).toMatch(
+      /实例总数\s*1.*在线\s*1.*需处理\s*0/s,
+    );
+    expect(within(card).getByRole('meter', { name: 'CPU 使用率' }).getAttribute('value')).toBe(
+      '24',
+    );
+    expect(within(card).getByRole('meter', { name: '内存使用率' }).getAttribute('value')).toBe(
+      '51',
+    );
+    expect(within(card).getByText('进入仪表盘')).toBeTruthy();
+    expect(within(card).getByRole('group', { name: '实例管理操作' })).toBeTruthy();
   });
 });

apps/web/src/fleet/fleet-page.tsx

@@ -82,8 +82,7 @@ const messageDirection = (value: string): string =>
     : value === 'outgoing' || value === 'sent'
       ? '发送'
       : '未知方向';
-const messageExcerpt = (value: string): string =>
-  value.length > 36 ? `${value.slice(0, 36)}…` : value;
+
 const messageTime = (value: string): string => {
   const date = new Date(value);
   return Number.isNaN(date.getTime()) ? value : date.toLocaleString('zh-CN');
@@ -198,9 +197,22 @@ export function FleetPage({
     [auth, capability, filter, page, query, selectedIds, snapshot, sort, tag, version],
   );
 
+  const fleetSummary = useMemo(() => {
+    const statuses = [...(snapshot?.statuses.values() ?? [])];
+    const online = statuses.filter(
+      (status) => status.reachable && status.authenticated !== false,
+    ).length;
+    return {
+      total: snapshot?.instances.length ?? 0,
+      online,
+      attention: (snapshot?.instances.length ?? 0) - online,
+    };
+  }, [snapshot]);
+
   useEffect(() => {
-    if (selectAllRef.current)
+    if (selectAllRef.current) {
       selectAllRef.current.indeterminate = model.visibleSelection.indeterminate;
+    }
   }, [model.visibleSelection.indeterminate]);
   useEffect(() => {
     if (page !== model.page) setPage(model.page);
@@ -332,6 +344,22 @@ export function FleetPage({
           </button>
         </div>
       </div>
+      {snapshot ? (
+        <section className="fleet-status-summary" aria-label="实例状态摘要">
+          <div>
+            <span>实例总数</span>
+            <strong>{fleetSummary.total}</strong>
+          </div>
+          <div>
+            <span>在线</span>
+            <strong>{fleetSummary.online}</strong>
+          </div>
+          <div>
+            <span>需处理</span>
+            <strong>{fleetSummary.attention}</strong>
+          </div>
+        </section>
+      ) : null}
       {batchOpen ? (
         <div className="batch-entry" role="region" aria-label="批量操作入口">
           请为已选择的 {model.selectedIds.length} 项选择操作。
@@ -465,6 +493,7 @@ export function FleetPage({
                     >
                       <h2>{row.displayName}</h2>
                       <code>{row.id}</code>
+                      <span className="fleet-card-entry-label">进入仪表盘</span>
                     </a>
                     <span className={`status status-${row.statusKind}`}>
                       {STATUS_LABELS[row.statusKind]}
@@ -479,11 +508,39 @@ export function FleetPage({
                     </div>
                     <div>
                       <dt>CPU</dt>
-                      <dd>{percent(row.status?.summary?.resources?.cpuPercent)}</dd>
+                      <dd>
+                        {row.status?.summary?.resources?.cpuPercent === undefined ? (
+                          '暂未获取'
+                        ) : (
+                          <>
+                            <meter
+                              min="0"
+                              max="100"
+                              value={row.status.summary.resources.cpuPercent}
+                              aria-label="CPU 使用率"
+                            />
+                            {percent(row.status.summary.resources.cpuPercent)}
+                          </>
+                        )}
+                      </dd>
                     </div>
                     <div>
                       <dt>内存</dt>
-                      <dd>{percent(row.status?.summary?.resources?.memoryPercent)}</dd>
+                      <dd>
+                        {row.status?.summary?.resources?.memoryPercent === undefined ? (
+                          '暂未获取'
+                        ) : (
+                          <>
+                            <meter
+                              min="0"
+                              max="100"
+                              value={row.status.summary.resources.memoryPercent}
+                              aria-label="内存使用率"
+                            />
+                            {percent(row.status.summary.resources.memoryPercent)}
+                          </>
+                        )}
+                      </dd>
                     </div>
                     <div>
                       <dt>最高温度</dt>
@@ -511,10 +568,6 @@ export function FleetPage({
                           <dt>号码</dt>
                           <dd>{messageStates.get(row.id)!.latest!.phoneNumber}</dd>
                         </div>
-                        <div>
-                          <dt>内容</dt>
-                          <dd>{messageExcerpt(messageStates.get(row.id)!.latest!.content)}</dd>
-                        </div>
                         <div>
                           <dt>时间</dt>
                           <dd>{messageTime(messageStates.get(row.id)!.latest!.timestamp)}</dd>
@@ -524,7 +577,11 @@ export function FleetPage({
                       <p className="fleet-card-sms-empty">暂无短信</p>
                     )}
                   </section>
-                  <div className="fleet-card-actions fleet-card-admin-actions">
+                  <div
+                    className="fleet-card-actions fleet-card-admin-actions"
+                    role="group"
+                    aria-label="实例管理操作"
+                  >
                     <a
                       href={`/settings/instances/${encodeURIComponent(row.id)}`}
                       aria-label={`编辑 ${row.displayName}`}
@@ -665,22 +722,7 @@ export function FleetPage({
                       tags: <td>{row.tags.join(', ') || '—'}</td>,
                       freshness: <td>{FRESHNESS_LABELS[row.freshness] ?? row.freshness}</td>,
                       anomalies: <td>{row.anomalies.join(', ') || '—'}</td>,
-                      origin: (
-                        <td>
-                          {origin ? (
-                            <a
-                              href={origin}
-                              target="_blank"
-                              rel="noopener noreferrer"
-                              aria-label={`打开 ${row.displayName} 的源站`}
-                            >
-                              {origin}
-                            </a>
-                          ) : (
-                            <span>源地址无效</span>
-                          )}
-                        </td>
-                      ),
+                      origin: <td>{origin ? <span>{origin}</span> : <span>源地址无效</span>}</td>,
                     };
                     return (
                       <tr key={row.id} aria-selected={row.selected}>

apps/web/src/instances/instance-detail.test.tsx

@@ -46,14 +46,20 @@ describe('InstanceDetail', () => {
     const links = navigation.getAllByRole('link');
     expect(links).toHaveLength(2);
     expect(links.map((link) => [link.textContent, link.getAttribute('href')])).toEqual([
-      ['实例仪表盘', '/instances/owner/overview'],
-      ['短信管理', '/instances/owner/messages'],
+      ['仪表盘', '/instances/owner/overview'],
+      ['短信', '/instances/owner/messages'],
     ]);
     expect(navigation.queryByText(/蜂窝网络|设备网络|通话|eSIM|通知|自动化|OTA/)).toBeNull();
     expect(screen.getByRole('heading', { name: '实例仪表盘' })).toBeTruthy();
     expect(screen.queryByText('能力状态未知。')).toBeNull();
     expect(screen.queryByText('此调制解调器不支持语音功能。')).toBeNull();
     expect(screen.queryByText('能力探测结果未包含 eSIM。')).toBeNull();
+    expect(screen.getByRole('link', { name: '返回实例总览' }).getAttribute('href')).toBe('/fleet');
+    expect(screen.getByRole('heading', { level: 1, name: 'Owner modem' })).toBeTruthy();
+    expect(screen.getAllByRole('heading', { level: 1 })).toHaveLength(1);
+    expect(screen.getByText('已认证')).toBeTruthy();
+    expect(screen.getByText('数据最新')).toBeTruthy();
+    expect(links.map((link) => link.textContent)).toEqual(['仪表盘', '短信']);
   });
 
   it('uses the business titles for both primary pages', () => {
@@ -106,7 +112,7 @@ describe('InstanceDetail', () => {
       <InstanceDetail instanceId="owner" module="overview" instance={owner} capabilities={{}} />,
     );
     expect(screen.getByText('状态')).toBeTruthy();
-    expect(screen.getByText('在线')).toBeTruthy();
+    expect(screen.getAllByText('在线')).toHaveLength(2);
   });
 
   it('never renders or loads context when the direct-route owner does not match', () => {
@@ -159,7 +165,7 @@ describe('InstanceDetail', () => {
     expect(pending.get('owner')?.signal.aborted).toBe(true);
 
     pending.get('second')?.resolve({ overview: { state: 'supported' } });
-    expect(await instanceNavigation().findByRole('link', { name: '实例仪表盘' })).toBeTruthy();
+    expect(await instanceNavigation().findByRole('link', { name: '仪表盘' })).toBeTruthy();
     pending
       .get('owner')
       ?.resolve({ overview: { state: 'unsupported', explanation: 'Stale owner result' } });

apps/web/src/instances/instance-detail.tsx

@@ -40,6 +40,16 @@ export const INSTANCE_MODULE_LABELS: Readonly<Record<InstanceModule, string>> =
 };
 
 const PRIMARY_MODULES = ['overview', 'messages'] as const satisfies readonly InstanceModule[];
+const PRIMARY_LABELS: Readonly<Record<(typeof PRIMARY_MODULES)[number], string>> = {
+  overview: '仪表盘',
+  messages: '短信',
+};
+const AUTH_LABELS = { authenticated: '已认证', 'auth-required': '需要认证' } as const;
+const FRESHNESS_LABELS = {
+  fresh: '数据最新',
+  stale: '数据可能过期',
+  expired: '数据已过期',
+} as const;
 
 const DEFAULT_EXPLANATIONS: Readonly<Record<Exclude<CapabilityState, 'supported'>, string>> = {
   degraded: '此模块可用，但功能受限。',
@@ -126,23 +136,37 @@ export function InstanceDetail({
 
   return (
     <section className="instance-detail">
-      <aside className="instance-context" aria-label="当前实例">
-        <strong>{instance.name}</strong>
-        <code>{instance.id}</code>
+      <header className="instance-context" aria-label="当前实例">
+        <a className="instance-breadcrumb" href="/fleet">
+          返回实例总览
+        </a>
+        <div className="instance-identity">
+          <div>
+            <h1>{instance.name}</h1>
+            <code>{instance.id}</code>
+          </div>
+          <div className="instance-context-badges">
+            {instance.status !== 'unknown' ? <span>{displayStatus(instance.status)}</span> : null}
+            {instance.authentication !== 'unknown' ? (
+              <span>{AUTH_LABELS[instance.authentication]}</span>
+            ) : null}
+            {instance.freshness !== 'unknown' ? (
+              <span>{FRESHNESS_LABELS[instance.freshness]}</span>
+            ) : null}
+          </div>
+        </div>
         {instance.status !== 'unknown' ? (
-          <dl>
+          <dl className="visually-hidden">
             <div>
               <dt>状态</dt>
               <dd>{displayStatus(instance.status)}</dd>
             </div>
           </dl>
         ) : null}
-        {origin ? (
-          <a href={origin} target="_blank" rel="noopener noreferrer">
-            打开源站
-          </a>
-        ) : null}
-        <a href={`/settings/instances/${encodeURIComponent(instanceId)}`}>编辑实例</a>
+        <div className="instance-header-actions">
+          {origin ? <span title={origin}>源站已由控制平面托管</span> : null}
+          <a href={`/settings/instances/${encodeURIComponent(instanceId)}`}>编辑实例</a>
+        </div>
         <nav aria-label="实例模块">
           <ul>
             {PRIMARY_MODULES.map((item) => {
@@ -152,16 +176,16 @@ export function InstanceDetail({
                     href={`/instances/${encodeURIComponent(instanceId)}/${item}`}
                     aria-current={module === item ? 'page' : undefined}
                   >
-                    {INSTANCE_MODULE_LABELS[item]}
+                    {PRIMARY_LABELS[item]}
                   </a>
                 </li>
               );
             })}
           </ul>
         </nav>
-      </aside>
+      </header>
       <div className="instance-module-detail">
-        <h1>{INSTANCE_MODULE_LABELS[module]}</h1>
+        <h2>{INSTANCE_MODULE_LABELS[module]}</h2>
         {loading ? <p role="status">正在加载能力…</p> : null}
         {loadError ? <p role="alert">能力不可用：{loadError}</p> : null}
         {!loading && canOpen(module, activeCapability) ? (

apps/web/src/instances/overview-system.test.tsx

@@ -20,6 +20,12 @@ const owner: InstanceContext = {
   status: 'online',
   authentication: 'authenticated',
   freshness: 'fresh',
+  resources: {
+    cpuPercent: 18.4,
+    memoryPercent: 63.2,
+    maxTemperatureCelsius: 46.7,
+    phoneNumbers: ['13800138000'],
+  },
 };
 const overviewCapabilities: InstanceCapabilityMap = {
   overview: { state: 'supported' },
@@ -108,7 +114,7 @@ describe('Phase 6.1 Overview / System read slice', () => {
     ).toBeTruthy();
   });
 
-  it('is honest when no safe read source is injected and never attempts a production endpoint', () => {
+  it('renders the route-owned Fleet resource summary without inventing another endpoint', () => {
     render(
       <AppShell
         pathname="/instances/alpha/overview"
@@ -116,9 +122,17 @@ describe('Phase 6.1 Overview / System read slice', () => {
         capabilities={overviewCapabilities}
       />,
     );
-    expect(screen.getByRole('status', { name: '概览不可用' }).textContent).toMatch(
-      /没有可用的安全概览只读数据源/i,
+    const operations = screen.getByRole('region', { name: '运行状态与资源' });
+    expect(within(operations).getByText('在线')).toBeTruthy();
+    expect(within(operations).getByRole('meter', { name: 'CPU使用率' }).getAttribute('value')).toBe(
+      '18.4',
     );
+    expect(
+      within(operations).getByRole('meter', { name: '内存使用率' }).getAttribute('value'),
+    ).toBe('63.2');
+    expect(within(operations).getByText('46.7 °C')).toBeTruthy();
+    expect(within(operations).getByText('13800138000')).toBeTruthy();
+    expect(screen.queryByText(/没有可用的安全概览只读数据源/i)).toBeNull();
     expect(screen.queryByRole('button', { name: /restart/i })).toBeNull();
   });
 

apps/web/src/instances/overview-system.tsx

@@ -102,6 +102,66 @@ function StructuredSection({ label, values }: { label: string; values: OverviewS
   );
 }
 
+function ResourceSummary({ instance }: { instance: InstanceContext }) {
+  const resources = instance.resources;
+  const metric = (label: string, value: number | undefined) => (
+    <article className="overview-resource-card">
+      <span>{label}</span>
+      {value === undefined ? (
+        <strong>暂未获取</strong>
+      ) : (
+        <>
+          <strong>{value.toFixed(1)}%</strong>
+          <meter min="0" max="100" value={value} aria-label={`${label}使用率`} />
+        </>
+      )}
+    </article>
+  );
+  return (
+    <section className="overview-operations" aria-label="运行状态与资源">
+      <h2>运行状态</h2>
+      {instance.resourceSummaryState === 'loading' ? (
+        <p role="status" aria-label="资源摘要状态">
+          正在加载资源摘要…
+        </p>
+      ) : null}
+      {instance.resourceSummaryState === 'unavailable' ? (
+        <p role="status" aria-label="资源摘要状态">
+          资源摘要暂不可用，实例基本信息仍可使用。
+        </p>
+      ) : null}
+      <div className="overview-resource-grid">
+        <article className="overview-resource-card">
+          <span>连接状态</span>
+          <strong>
+            {instance.status === 'online'
+              ? '在线'
+              : instance.status === 'offline'
+                ? '离线'
+                : instance.status === 'auth-required'
+                  ? '需要认证'
+                  : '未知'}
+          </strong>
+        </article>
+        {metric('CPU', resources?.cpuPercent)}
+        {metric('内存', resources?.memoryPercent)}
+        <article className="overview-resource-card">
+          <span>最高温度</span>
+          <strong>
+            {resources?.maxTemperatureCelsius === undefined
+              ? '暂未获取'
+              : `${resources.maxTemperatureCelsius.toFixed(1)} °C`}
+          </strong>
+        </article>
+        <article className="overview-resource-card overview-resource-phone">
+          <span>手机号</span>
+          <strong>{resources?.phoneNumbers?.join('、') || '暂未获取'}</strong>
+        </article>
+      </div>
+    </section>
+  );
+}
+
 export function OverviewSystemPage({
   instance,
   dataSource,
@@ -159,12 +219,7 @@ export function OverviewSystemPage({
       </div>
     );
 
-  if (!dataSource)
-    return (
-      <div className="state-panel" role="status" aria-label="概览不可用">
-        没有可用的安全概览只读数据源。此控制台不会臆造或调用未签订契约的生产端点。
-      </div>
-    );
+  if (!dataSource) return <ResourceSummary instance={instance} />;
 
   const retainedSnapshot =
     state.kind === 'loading' || state.kind === 'error' ? state.snapshot : undefined;
@@ -191,6 +246,7 @@ export function OverviewSystemPage({
 
   return (
     <div className="overview-system">
+      <ResourceSummary instance={instance} />
       {state.kind === 'loading' ? <p role="status">正在刷新概览…</p> : null}
       {state.kind === 'error' ? (
         <div className="state-panel state-error" role="alert">
@@ -211,10 +267,10 @@ export function OverviewSystemPage({
           <StructuredSection key={key} label={label} values={snapshot[key]} />
         ))}
       </div>
-      <section className="state-panel" aria-label="系统操作">
-        <h2>系统操作</h2>
+      <details className="system-operation-note">
+        <summary>系统操作说明</summary>
         <p>重启不可用，因为后端尚未实现 R3 重启操作，因此不提供任何操作。</p>
-      </section>
+      </details>
     </div>
   );
 }

apps/web/src/styles.css

@@ -283,6 +283,33 @@ small {
   grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
   gap: 1rem;
 }
+.fleet-status-summary {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 1px;
+  margin: 1rem 0;
+  overflow: hidden;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--border);
+}
+.fleet-status-summary div {
+  display: flex;
+  justify-content: space-between;
+  padding: 0.75rem 1rem;
+  background: var(--surface-raised);
+}
+.fleet-card-entry-label {
+  display: block;
+  margin-top: 0.55rem;
+  font-weight: 800;
+  color: #187f77;
+}
+.fleet-card meter {
+  width: min(7rem, 45%);
+  margin-right: 0.5rem;
+  accent-color: var(--mint-dark);
+}
 .fleet-card {
   position: relative;
   min-width: 0;
@@ -385,6 +412,8 @@ small {
   border-color: #db938d;
 }
 .card-delete-confirmation {
+  position: relative;
+  z-index: 1;
   display: grid;
   gap: 0.65rem;
   margin-top: 1rem;
@@ -628,14 +657,76 @@ tbody th small {
 }
 .instance-detail {
   display: grid;
-  grid-template-columns: 13rem minmax(0, 1fr);
+  grid-template-columns: minmax(0, 1fr);
   gap: 1rem;
 }
 .instance-context {
   min-width: 0;
-  padding: 1rem;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 0.8rem 1.25rem;
+  padding: 1.15rem 1.25rem 0;
+  border: 1px solid var(--border);
   border-radius: 18px;
-  background: var(--surface);
+  background: var(--surface-raised);
+  box-shadow: 0 8px 24px rgba(121, 79, 39, 0.08);
+}
+.instance-breadcrumb {
+  grid-column: 1 / -1;
+  width: fit-content;
+  font-size: 0.85rem;
+  font-weight: 800;
+  text-decoration: none;
+}
+.instance-identity {
+  min-width: 0;
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  flex-wrap: wrap;
+}
+.instance-identity h1 {
+  margin: 0;
+}
+.instance-context-badges,
+.instance-header-actions {
+  display: flex;
+  align-items: center;
+  gap: 0.45rem;
+  flex-wrap: wrap;
+}
+.instance-context-badges span {
+  padding: 0.25rem 0.55rem;
+  border-radius: 999px;
+  color: #187f77;
+  background: #d8f5ec;
+  font-size: 0.76rem;
+  font-weight: 800;
+}
+.instance-header-actions {
+  justify-content: flex-end;
+}
+.instance-header-actions span {
+  color: var(--muted);
+  font-size: 0.8rem;
+}
+.instance-context nav {
+  grid-column: 1 / -1;
+  margin-top: 0.2rem;
+  border-top: 1px solid var(--border);
+}
+.instance-context nav ul {
+  display: flex;
+  gap: 0.25rem;
+}
+.instance-context nav a {
+  border-radius: 0;
+  border-bottom: 3px solid transparent;
+}
+.instance-context nav a[aria-current='page'] {
+  border-bottom-color: var(--mint-dark);
+  box-shadow: none;
 }
 .instance-context code {
   display: block;
@@ -836,6 +927,47 @@ dd {
   grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
   gap: 0.8rem;
 }
+.overview-operations {
+  margin-bottom: 1rem;
+  padding: 1rem;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  background: var(--surface);
+}
+.overview-operations h2 {
+  margin-top: 0;
+}
+.overview-resource-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr));
+  gap: 0.7rem;
+}
+.overview-resource-card {
+  min-width: 0;
+  display: grid;
+  gap: 0.45rem;
+  padding: 0.85rem;
+  border: 1px solid var(--border);
+  border-radius: 14px;
+  background: var(--surface-raised);
+}
+.overview-resource-card span {
+  color: var(--muted);
+  font-size: 0.78rem;
+  font-weight: 700;
+}
+.overview-resource-card strong {
+  color: var(--brown);
+  font-size: 1.1rem;
+  overflow-wrap: anywhere;
+}
+.overview-resource-card meter {
+  width: 100%;
+  accent-color: var(--mint-dark);
+}
+.system-operation-note {
+  color: var(--muted);
+}
 .overview-card,
 .cellular-card,
 .device-network-card,
@@ -917,8 +1049,17 @@ main ul[aria-label='已配置实例'] {
     display: block;
   }
   .instance-context {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr);
     margin-bottom: 1rem;
   }
+  .instance-breadcrumb,
+  .instance-context nav {
+    grid-column: 1;
+  }
+  .instance-header-actions {
+    justify-content: flex-start;
+  }
   .messages-workbench {
     grid-template-columns: minmax(0, 1fr);
     min-height: 0;
@@ -931,8 +1072,8 @@ main ul[aria-label='已配置实例'] {
     max-height: none;
   }
   .instance-context ul {
-    display: grid;
-    grid-template-columns: repeat(2, minmax(0, 1fr));
+    display: flex;
+    flex-wrap: wrap;
     overflow: visible;
   }
   .instance-context li {
@@ -974,6 +1115,9 @@ main ul[aria-label='已配置实例'] {
   .fleet-card-section {
     margin-top: 0.55rem;
   }
+  .fleet-status-summary {
+    grid-template-columns: minmax(0, 1fr);
+  }
   .table-scroll {
     overflow-x: auto;
     border: 1px solid var(--border);