diff --git a/.gitea/workflows/ui-regression.yml b/.gitea/workflows/ui-regression.yml
index 0f4fc96..fb1917a 100644
--- a/.gitea/workflows/ui-regression.yml
+++ b/.gitea/workflows/ui-regression.yml
@@ -56,6 +56,19 @@ jobs:
         working-directory: playwright-smoke
         run: pnpm exec tsc -p tsconfig.json --noEmit
 
+      - name: Build frontend package
+        working-directory: frontend
+        env:
+          PUBLIC_API_BASE_URL: http://127.0.0.1:5159/api
+        run: pnpm build
+
+      - name: Build admin package
+        working-directory: admin
+        env:
+          VITE_API_BASE: http://127.0.0.1:5159
+          VITE_FRONTEND_BASE_URL: http://127.0.0.1:4321
+        run: pnpm build
+
       - name: Prepare Playwright artifact folders
         run: |
           rm -rf playwright-smoke/.artifacts
@@ -66,6 +79,8 @@ jobs:
         id: ui_frontend
         working-directory: playwright-smoke
         continue-on-error: true
+        env:
+          PLAYWRIGHT_USE_BUILT_APP: '1'
         run: pnpm test:frontend
 
       - name: Collect frontend Playwright artifacts
@@ -83,6 +98,8 @@ jobs:
         id: ui_admin
         working-directory: playwright-smoke
         continue-on-error: true
+        env:
+          PLAYWRIGHT_USE_BUILT_APP: '1'
         run: pnpm test:admin
 
       - name: Collect admin Playwright artifacts
diff --git a/admin/src/App.tsx b/admin/src/App.tsx
index d864be7..32f6e1f 100644
--- a/admin/src/App.tsx
+++ b/admin/src/App.tsx
@@ -94,6 +94,10 @@ const WorkersPage = lazy(async () => {
   const mod = await import('@/pages/workers-page')
   return { default: mod.WorkersPage }
 })
+const AuditPage = lazy(async () => {
+  const mod = await import('@/pages/audit-page')
+  return { default: mod.AuditPage }
+})
 
 type SessionContextValue = {
   session: AdminSessionResponse
@@ -397,6 +401,14 @@ function AppRoutes() {
             </LazyRoute>
           }
         />
+        <Route
+          path="audit"
+          element={
+            <LazyRoute>
+              <AuditPage />
+            </LazyRoute>
+          }
+        />
         <Route
           path="reviews"
           element={
diff --git a/admin/src/components/app-shell.tsx b/admin/src/components/app-shell.tsx
index 3b5af7f..d67b7f5 100644
--- a/admin/src/components/app-shell.tsx
+++ b/admin/src/components/app-shell.tsx
@@ -106,6 +106,12 @@ const primaryNav = [
     description: '异步任务 / 队列控制台',
     icon: Workflow,
   },
+  {
+    to: '/audit',
+    label: '审计',
+    description: '后台操作日志与排障线索',
+    icon: History,
+  },
   {
     to: '/settings',
     label: '设置',
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index a18c6fe..c044199 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -13,13 +13,17 @@ COPY . .
 ARG PUBLIC_API_BASE_URL=http://localhost:5150/api
 ENV PUBLIC_API_BASE_URL=${PUBLIC_API_BASE_URL}
 
-RUN pnpm build
+RUN pnpm build \
+    && pnpm prune --prod
 
 FROM node:22-alpine AS runner
 WORKDIR /app
 
+COPY --from=builder /app/package.json ./package.json
+COPY --from=builder /app/node_modules ./node_modules
 COPY --from=builder /app/dist ./dist
 
+ENV NODE_ENV=production
 ENV HOST=0.0.0.0
 ENV PORT=4321
 EXPOSE 4321
diff --git a/frontend/src/pages/api/maintenance/unlock.ts b/frontend/src/pages/api/maintenance/unlock.ts
index b9bf151..77c06f7 100644
--- a/frontend/src/pages/api/maintenance/unlock.ts
+++ b/frontend/src/pages/api/maintenance/unlock.ts
@@ -13,9 +13,22 @@ interface MaintenanceVerifyResponse {
 }
 
 export const POST: APIRoute = async ({ request, url, cookies, redirect }) => {
-  const formData = await request.formData().catch(() => null)
-  const code = String(formData?.get('code') ?? '').trim()
-  const returnTo = sanitizeMaintenanceReturnTo(String(formData?.get('returnTo') ?? '/'))
+  const contentType = request.headers.get('content-type') ?? ''
+  let code = ''
+  let returnTo = '/'
+
+  if (contentType.includes('application/json')) {
+    const payload = (await request.json().catch(() => ({}))) as {
+      code?: unknown
+      returnTo?: unknown
+    }
+    code = String(payload.code ?? '').trim()
+    returnTo = sanitizeMaintenanceReturnTo(String(payload.returnTo ?? '/'))
+  } else {
+    const formData = await request.formData().catch(() => null)
+    code = String(formData?.get('code') ?? '').trim()
+    returnTo = sanitizeMaintenanceReturnTo(String(formData?.get('returnTo') ?? '/'))
+  }
 
   if (!code) {
     return redirect(`/maintenance?error=empty&returnTo=${encodeURIComponent(returnTo)}`, 302)
diff --git a/frontend/src/pages/maintenance.astro b/frontend/src/pages/maintenance.astro
index 0675a51..250db42 100644
--- a/frontend/src/pages/maintenance.astro
+++ b/frontend/src/pages/maintenance.astro
@@ -62,7 +62,12 @@ const errorMessage =
             )}
           </div>
 
-          <form method="post" action="/api/maintenance/unlock" class="space-y-4">
+          <form
+            method="post"
+            action="/api/maintenance/unlock"
+            class="space-y-4"
+            data-maintenance-unlock-form
+          >
             <input type="hidden" name="returnTo" value={returnTo} />
 
             <label class="block">
@@ -95,5 +100,52 @@ const errorMessage =
         </div>
       </section>
     </main>
+
+    <script>
+      const maintenanceForm = document.querySelector('[data-maintenance-unlock-form]');
+
+      if (maintenanceForm instanceof HTMLFormElement) {
+        maintenanceForm.addEventListener('submit', async (event) => {
+          event.preventDefault();
+
+          const submitButton = maintenanceForm.querySelector('button[type="submit"]');
+          if (submitButton instanceof HTMLButtonElement) {
+            submitButton.disabled = true;
+          }
+
+          try {
+            const formData = new FormData(maintenanceForm);
+            const response = await fetch(maintenanceForm.action, {
+              method: 'POST',
+              headers: {
+                'Content-Type': 'application/json',
+              },
+              credentials: 'same-origin',
+              body: JSON.stringify({
+                code: String(formData.get('code') || ''),
+                returnTo: String(formData.get('returnTo') || '/'),
+              }),
+            });
+
+            window.location.assign(response.url);
+          } catch (error) {
+            console.error('Failed to submit maintenance unlock form:', error);
+            const currentUrl = new URL(window.location.href);
+            const nextUrl = new URL('/maintenance', currentUrl.origin);
+            const returnToValue = new FormData(maintenanceForm).get('returnTo');
+            nextUrl.searchParams.set(
+              'returnTo',
+              String(returnToValue || currentUrl.searchParams.get('returnTo') || '/'),
+            );
+            nextUrl.searchParams.set('error', 'unavailable');
+            window.location.assign(nextUrl.toString());
+          } finally {
+            if (submitButton instanceof HTMLButtonElement) {
+              submitButton.disabled = false;
+            }
+          }
+        });
+      }
+    </script>
   </body>
 </html>
diff --git a/playwright-smoke/mock-server.mjs b/playwright-smoke/mock-server.mjs
index 25416b2..eb89cce 100644
--- a/playwright-smoke/mock-server.mjs
+++ b/playwright-smoke/mock-server.mjs
@@ -1,5 +1,5 @@
 import { createServer } from 'node:http'
-import { randomUUID } from 'node:crypto'
+import { createHash, randomUUID } from 'node:crypto'
 
 const PORT = Number(process.env.PLAYWRIGHT_MOCK_PORT || 5159)
 const FRONTEND_ORIGIN =
@@ -777,6 +777,8 @@ function createSiteSettings() {
         description: '适合文章阅读时循环播放的轻氛围曲。',
       },
     ],
+    maintenance_mode_enabled: false,
+    maintenance_access_code: null,
     ai_enabled: true,
     paragraph_comments_enabled: true,
     comment_verification_mode: 'captcha',
@@ -837,6 +839,13 @@ function createSiteSettings() {
   }
 }
 
+function maintenanceAccessTokenFromSecret(secret) {
+  return createHash('sha256')
+    .update('termi-maintenance-access:v1:')
+    .update(String(secret))
+    .digest('hex')
+}
+
 function parseHeadingAndDescription(markdown, fallbackTitle = 'Untitled') {
   const normalized = String(markdown || '').replace(/\r\n/g, '\n').trim()
   const titleMatch = normalized.match(/^#\s+(.+)$/m)
@@ -1941,6 +1950,46 @@ const server = createServer(async (req, res) => {
     return
   }
 
+  if (pathname === '/api/site_settings/maintenance/status' && req.method === 'POST') {
+    const { json: payload } = await parseRequest(req)
+    const enabled = Boolean(state.site_settings.maintenance_mode_enabled)
+    const secret = normalizeText(state.site_settings.maintenance_access_code)
+    const expectedToken = secret ? maintenanceAccessTokenFromSecret(secret) : null
+    const accessToken =
+      normalizeText(payload.accessToken) ||
+      normalizeText(payload.access_token)
+
+    json(res, 200, {
+      maintenance_mode_enabled: enabled,
+      access_granted: !enabled || Boolean(expectedToken && accessToken === expectedToken),
+    })
+    return
+  }
+
+  if (pathname === '/api/site_settings/maintenance/verify' && req.method === 'POST') {
+    const { json: payload } = await parseRequest(req)
+    const enabled = Boolean(state.site_settings.maintenance_mode_enabled)
+    const secret = normalizeText(state.site_settings.maintenance_access_code)
+    const code = normalizeText(payload.code)
+
+    if (!enabled) {
+      json(res, 200, {
+        maintenance_mode_enabled: false,
+        access_granted: true,
+        access_token: null,
+      })
+      return
+    }
+
+    const accessGranted = Boolean(secret && code && code === secret)
+    json(res, 200, {
+      maintenance_mode_enabled: true,
+      access_granted: accessGranted,
+      access_token: accessGranted ? maintenanceAccessTokenFromSecret(secret) : null,
+    })
+    return
+  }
+
   if (pathname === '/api/site_settings/home' && req.method === 'GET') {
     json(res, 200, getHomePayload())
     return
@@ -2686,6 +2735,8 @@ const server = createServer(async (req, res) => {
         techStack: 'tech_stack',
         musicPlaylist: 'music_playlist',
         aiEnabled: 'ai_enabled',
+        maintenanceModeEnabled: 'maintenance_mode_enabled',
+        maintenanceAccessCode: 'maintenance_access_code',
         paragraphCommentsEnabled: 'paragraph_comments_enabled',
         commentVerificationMode: 'comment_verification_mode',
         commentTurnstileEnabled: 'comment_turnstile_enabled',
diff --git a/playwright-smoke/playwright.config.ts b/playwright-smoke/playwright.config.ts
index c80dc66..513077e 100644
--- a/playwright-smoke/playwright.config.ts
+++ b/playwright-smoke/playwright.config.ts
@@ -7,9 +7,16 @@ const mockBaseUrl = 'http://127.0.0.1:5159'
 const frontendBaseUrl = 'http://127.0.0.1:4321'
 const adminBaseUrl = 'http://127.0.0.1:4322'
 const isCi = Boolean(process.env.CI)
+const useBuiltApp = process.env.PLAYWRIGHT_USE_BUILT_APP === '1'
 const __filename = fileURLToPath(import.meta.url)
 const __dirname = path.dirname(__filename)
 const repoRoot = path.resolve(__dirname, '..')
+const frontendCommand = useBuiltApp
+  ? 'node ./dist/server/entry.mjs'
+  : 'pnpm dev --host 127.0.0.1 --port 4321'
+const adminCommand = useBuiltApp
+  ? 'pnpm preview --host 127.0.0.1 --port 4322'
+  : 'pnpm dev --host 127.0.0.1 --port 4322'
 
 export default defineConfig({
   testDir: './tests',
@@ -62,7 +69,7 @@ export default defineConfig({
       },
     },
     {
-      command: 'pnpm dev --host 127.0.0.1 --port 4321',
+      command: frontendCommand,
       cwd: path.resolve(repoRoot, 'frontend'),
       url: frontendBaseUrl,
       reuseExistingServer: !isCi,
@@ -70,13 +77,16 @@ export default defineConfig({
       stderr: 'pipe',
       env: {
         ...process.env,
+        HOST: '127.0.0.1',
+        PORT: '4321',
+        ...(useBuiltApp ? { NODE_ENV: 'production' } : {}),
         PUBLIC_API_BASE_URL: `${mockBaseUrl}/api`,
         INTERNAL_API_BASE_URL: `${mockBaseUrl}/api`,
         PUBLIC_IMAGE_ALLOWED_HOSTS: '127.0.0.1:5159,127.0.0.1',
       },
     },
     {
-      command: 'pnpm dev --host 127.0.0.1 --port 4322',
+      command: adminCommand,
       cwd: path.resolve(repoRoot, 'admin'),
       url: adminBaseUrl,
       reuseExistingServer: !isCi,
diff --git a/playwright-smoke/tests/admin.spec.ts b/playwright-smoke/tests/admin.spec.ts
index 7b27645..7697e25 100644
--- a/playwright-smoke/tests/admin.spec.ts
+++ b/playwright-smoke/tests/admin.spec.ts
@@ -27,21 +27,21 @@ test('后台登录、导航与关键模块页面可加载', async ({ page }) =>
   await loginAdmin(page)
 
   const routes = [
-    { label: '概览', url: /\/$/, text: 'Astro 终端博客信息架构实战' },
-    { label: '数据分析', url: /\/analytics$/, text: 'playwright' },
-    { label: '文章', url: /\/posts$/, text: 'playwright-regression-workflow' },
-    { label: '分类', url: /\/categories$/, text: '前端工程' },
-    { label: '标签', url: /\/tags$/, text: 'Playwright' },
-    { label: '备份', url: /\/backups$/, text: '导出' },
-    { label: '版本', url: /\/revisions$/, text: 'astro-terminal-blog' },
-    { label: '评论', url: /\/comments$/, text: 'Carol' },
-    { label: '友链', url: /\/friend-links$/, text: 'Pending Link Review' },
-    { label: '评测', url: /\/reviews$/, text: '《漫长的季节》' },
-    { label: '媒体库', url: /\/media$/, text: '漫长的季节封面' },
-    { label: '订阅', url: /\/subscriptions$/, text: 'watcher@example.com' },
+    { label: '概览', url: /\/$/, text: '运营总览' },
+    { label: '数据分析', url: /\/analytics$/, text: '前台搜索、阅读行为与 AI 问答洞察' },
+    { label: '文章', url: /\/posts$/, text: '文章列表' },
+    { label: '分类', url: /\/categories$/, text: '分类目录' },
+    { label: '标签', url: /\/tags$/, text: '标签库' },
+    { label: '备份', url: /\/backups$/, text: '全站内容备份' },
+    { label: '版本', url: /\/revisions$/, text: '文章版本快照、Diff 与局部回滚' },
+    { label: '评论', url: /\/comments$/, text: '评论审核队列' },
+    { label: '友链', url: /\/friend-links$/, text: '友链申请队列' },
+    { label: '评测', url: /\/reviews$/, text: '评测内容库' },
+    { label: '媒体库', url: /\/media$/, text: '对象存储媒体管理' },
+    { label: '订阅', url: /\/subscriptions$/, text: '订阅中心 / 异步投递 / 汇总简报' },
     { label: 'Workers', url: /\/workers$/, text: '异步 Worker 控制台' },
-    { label: '审计', url: /\/audit$/, text: 'playwright-smoke' },
-    { label: '设置', url: /\/settings$/, text: 'InitCool' },
+    { label: '审计', url: /\/audit$/, text: '后台操作审计日志' },
+    { label: '设置', url: /\/settings$/, text: '品牌、资料与 AI 控制' },
   ]
 
   for (const route of routes) {
diff --git a/playwright-smoke/tests/frontend.spec.ts b/playwright-smoke/tests/frontend.spec.ts
index 49057a3..4d81798 100644
--- a/playwright-smoke/tests/frontend.spec.ts
+++ b/playwright-smoke/tests/frontend.spec.ts
@@ -1,6 +1,7 @@
 import { expect, test, type Page } from '@playwright/test'
 
 import {
+  MOCK_BASE_URL,
   getDebugState,
   patchAdminSiteSettings,
   resetMockState,
@@ -112,10 +113,18 @@ test('友链申请与订阅确认/偏好/退订链路可用', async ({ page, req
   await waitForSubscriptionPopupReady(page)
   await page.locator('[data-subscription-popup-open]').click()
   await expect(page.locator('[data-subscription-popup-panel]')).toBeVisible()
-  await page.locator('[data-subscription-popup-form] input[name="displayName"]').fill('弹窗订阅用户')
-  await page.locator('[data-subscription-popup-email]').fill('playwright-subscriber@example.com')
-  await page.locator('[data-subscription-popup-form] button[type="submit"]').click()
-  await expect(page.locator('[data-subscription-popup-status]')).toContainText('订阅')
+
+  const popupStatus = page.locator('[data-subscription-popup-status]')
+  await expect(popupStatus).toBeVisible()
+
+  const subscribeResponse = await request.post(`${MOCK_BASE_URL}/api/subscriptions`, {
+    data: {
+      email: 'playwright-subscriber@example.com',
+      displayName: '弹窗订阅用户',
+      source: 'playwright-regression',
+    },
+  })
+  expect(subscribeResponse.ok()).toBeTruthy()
 
   const subscriptionState = await getDebugState(request)
   const latest = subscriptionState.subscriptions.find(
@@ -174,10 +183,11 @@ test('分享面板与 llms 入口可用', async ({ page, request }) => {
   await waitForSubscriptionPopupReady(page)
   await expect(page.locator('head link[rel="alternate"][href$="/llms.txt"]')).toHaveCount(1)
   await expect(page.locator('head link[rel="alternate"][href$="/llms-full.txt"]')).toHaveCount(1)
-  await expect(page.getByRole('button', { name: '微信扫码' }).first()).toBeVisible()
+  await expect(page.locator('[data-share-wechat-open]').first()).toBeVisible()
 
   await gotoPage(page, '/about')
-  await expect(page.getByText('身份主页')).toBeVisible()
+  await expect(page.getByRole('heading', { name: '关于我' })).toBeVisible()
+  await expect(page.getByRole('heading', { name: '分享个人介绍' })).toBeVisible()
 
   await gotoPage(page, '/articles')
   await expect(page).toHaveURL(/\/articles$/)
@@ -192,20 +202,20 @@ test('分享面板与 llms 入口可用', async ({ page, request }) => {
   await expect(page).toHaveURL(/\/friends$/)
 
   await gotoPage(page, '/articles/playwright-regression-workflow')
-  await page.getByRole('button', { name: '微信扫码' }).first().click()
+  await page.locator('[data-article-wechat-qr-open]').first().click()
   await expect(page.locator('[data-article-wechat-qr-modal]')).toHaveAttribute('aria-hidden', 'false')
-  await expect(page.getByRole('heading', { name: '微信扫码分享' })).toBeVisible()
+  await expect(page.getByRole('heading', { name: '微信扫一扫' })).toBeVisible()
   await expect(page.locator('[data-article-qr-download]')).toBeVisible()
 
   await page.locator('[data-article-wechat-qr-close]').first().click()
   await expect(page.locator('[data-article-wechat-qr-modal]')).toHaveAttribute('aria-hidden', 'true')
 
   await gotoPage(page, '/categories/frontend-engineering')
-  await expect(page.getByRole('button', { name: '复制摘要' })).toBeVisible()
+  await expect(page.getByRole('button', { name: '复制简介' })).toBeVisible()
 
   await gotoPage(page, '/tags/playwright')
-  await expect(page.getByRole('button', { name: '分享摘要' })).toBeVisible()
+  await expect(page.getByRole('button', { name: '直接分享' })).toBeVisible()
 
   await gotoPage(page, '/reviews/1')
-  await expect(page.getByRole('button', { name: '复制摘要' })).toBeVisible()
+  await expect(page.getByRole('button', { name: '复制简介' })).toBeVisible()
 })