diff --git a/electron/services/exportService.ts b/electron/services/exportService.ts
index 5507bd6..20864a5 100644
--- a/electron/services/exportService.ts
+++ b/electron/services/exportService.ts
@@ -1800,6 +1800,26 @@ class ExportService {
     else if (appMsgKind === 'quote') meta.appMsgType = '57'
     if (appMsgKind) meta.appMsgKind = appMsgKind
 
+    const appMsgDesc = this.extractXmlValue(normalized, 'des') || this.extractXmlValue(normalized, 'desc')
+    const appMsgAppName = this.extractXmlValue(normalized, 'appname')
+    const appMsgSourceName =
+      this.extractXmlValue(normalized, 'sourcename') ||
+      this.extractXmlValue(normalized, 'sourcedisplayname')
+    const appMsgSourceUsername = this.extractXmlValue(normalized, 'sourceusername')
+    const appMsgThumbUrl =
+      this.extractXmlValue(normalized, 'thumburl') ||
+      this.extractXmlValue(normalized, 'cdnthumburl') ||
+      this.extractXmlValue(normalized, 'cover') ||
+      this.extractXmlValue(normalized, 'coverurl') ||
+      this.extractXmlValue(normalized, 'thumbUrl') ||
+      this.extractXmlValue(normalized, 'coverUrl')
+
+    if (appMsgDesc) meta.appMsgDesc = appMsgDesc
+    if (appMsgAppName) meta.appMsgAppName = appMsgAppName
+    if (appMsgSourceName) meta.appMsgSourceName = appMsgSourceName
+    if (appMsgSourceUsername) meta.appMsgSourceUsername = appMsgSourceUsername
+    if (appMsgThumbUrl) meta.appMsgThumbUrl = appMsgThumbUrl
+
     if (appMsgKind === 'quote') {
       const quoteInfo = this.parseQuoteMessage(normalized)
       if (quoteInfo.content) meta.quotedContent = quoteInfo.content
@@ -1807,6 +1827,18 @@ class ExportService {
       if (quoteInfo.type) meta.quotedType = quoteInfo.type
     }
 
+    if (appMsgKind === 'link') {
+      const linkCard = this.extractHtmlLinkCard(normalized, localType)
+      const linkUrl = linkCard?.url || this.normalizeHtmlLinkUrl(
+        this.extractXmlValue(normalized, 'shareurl') ||
+        this.extractXmlValue(normalized, 'shorturl') ||
+        this.extractXmlValue(normalized, 'dataurl')
+      )
+      if (linkCard?.title) meta.linkTitle = linkCard.title
+      if (linkUrl) meta.linkUrl = linkUrl
+      if (appMsgThumbUrl) meta.linkThumb = appMsgThumbUrl
+    }
+
     if (isMusic) {
       const musicTitle =
         this.extractXmlValue(normalized, 'songname') ||
@@ -3906,9 +3938,10 @@ class ExportService {
 
         const appMsgMeta = this.extractArkmeAppMessageMeta(msg.content, msg.localType)
         if (appMsgMeta) {
-          if (options.format === 'arkme-json') {
-            Object.assign(msgObj, appMsgMeta)
-          } else if (options.format === 'json' && appMsgMeta.appMsgKind === 'quote') {
+          if (
+            options.format === 'arkme-json' ||
+            (options.format === 'json' && (appMsgMeta.appMsgKind === 'quote' || appMsgMeta.appMsgKind === 'link'))
+          ) {
             Object.assign(msgObj, appMsgMeta)
           }
         }
@@ -4100,9 +4133,17 @@ class ExportService {
           if (message.locationLabel) compactMessage.locationLabel = message.locationLabel
           if (message.appMsgType) compactMessage.appMsgType = message.appMsgType
           if (message.appMsgKind) compactMessage.appMsgKind = message.appMsgKind
+          if (message.appMsgDesc) compactMessage.appMsgDesc = message.appMsgDesc
+          if (message.appMsgAppName) compactMessage.appMsgAppName = message.appMsgAppName
+          if (message.appMsgSourceName) compactMessage.appMsgSourceName = message.appMsgSourceName
+          if (message.appMsgSourceUsername) compactMessage.appMsgSourceUsername = message.appMsgSourceUsername
+          if (message.appMsgThumbUrl) compactMessage.appMsgThumbUrl = message.appMsgThumbUrl
           if (message.quotedContent) compactMessage.quotedContent = message.quotedContent
           if (message.quotedSender) compactMessage.quotedSender = message.quotedSender
           if (message.quotedType) compactMessage.quotedType = message.quotedType
+          if (message.linkTitle) compactMessage.linkTitle = message.linkTitle
+          if (message.linkUrl) compactMessage.linkUrl = message.linkUrl
+          if (message.linkThumb) compactMessage.linkThumb = message.linkThumb
           if (message.finderTitle) compactMessage.finderTitle = message.finderTitle
           if (message.finderDesc) compactMessage.finderDesc = message.finderDesc
           if (message.finderUsername) compactMessage.finderUsername = message.finderUsername
diff --git a/src/App.tsx b/src/App.tsx
index 416d3e1..f50a7b2 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,5 +1,5 @@
-import { useEffect, useState } from 'react'
-import { Routes, Route, useNavigate, useLocation } from 'react-router-dom'
+import { useEffect, useRef, useState } from 'react'
+import { Routes, Route, Navigate, useNavigate, useLocation, type Location } from 'react-router-dom'
 import TitleBar from './components/TitleBar'
 import Sidebar from './components/Sidebar'
 import RouteGuard from './components/RouteGuard'
@@ -8,6 +8,7 @@ import HomePage from './pages/HomePage'
 import ChatPage from './pages/ChatPage'
 import AnalyticsPage from './pages/AnalyticsPage'
 import AnalyticsWelcomePage from './pages/AnalyticsWelcomePage'
+import ChatAnalyticsHubPage from './pages/ChatAnalyticsHubPage'
 import AnnualReportPage from './pages/AnnualReportPage'
 import AnnualReportWindow from './pages/AnnualReportWindow'
 import DualReportPage from './pages/DualReportPage'
@@ -37,9 +38,22 @@ import { GlobalSessionMonitor } from './components/GlobalSessionMonitor'
 import { BatchTranscribeGlobal } from './components/BatchTranscribeGlobal'
 import { BatchImageDecryptGlobal } from './components/BatchImageDecryptGlobal'
 
+function RouteStateRedirect({ to }: { to: string }) {
+  const location = useLocation()
+
+  return <Navigate to={to} replace state={location.state} />
+}
+
 function App() {
   const navigate = useNavigate()
   const location = useLocation()
+  const settingsBackgroundRef = useRef<Location>({
+    pathname: '/home',
+    search: '',
+    hash: '',
+    state: null,
+    key: 'settings-fallback'
+  } as Location)
 
   const {
     setDbConnected,
@@ -63,8 +77,14 @@ function App() {
   const isChatHistoryWindow = location.pathname.startsWith('/chat-history/')
   const isStandaloneChatWindow = location.pathname === '/chat-window'
   const isNotificationWindow = location.pathname === '/notification-window'
-  const isExportRoute = location.pathname === '/export'
+  const isSettingsRoute = location.pathname === '/settings'
+  const settingsRouteState = location.state as { backgroundLocation?: Location; initialTab?: unknown } | null
+  const routeLocation = isSettingsRoute
+    ? settingsRouteState?.backgroundLocation ?? settingsBackgroundRef.current
+    : location
+  const isExportRoute = routeLocation.pathname === '/export'
   const [themeHydrated, setThemeHydrated] = useState(false)
+  const [sidebarCollapsed, setSidebarCollapsed] = useState(false)
 
   // 锁定状态
   // const [isLocked, setIsLocked] = useState(false) // Moved to store
@@ -81,6 +101,12 @@ function App() {
   // 数据收集同意状态
   const [showAnalyticsConsent, setShowAnalyticsConsent] = useState(false)
 
+  useEffect(() => {
+    if (location.pathname !== '/settings') {
+      settingsBackgroundRef.current = location
+    }
+  }, [location])
+
   useEffect(() => {
     const root = document.documentElement
     const body = document.body
@@ -429,6 +455,25 @@ function App() {
   }
 
   // 主窗口 - 完整布局
+  const handleCloseSettings = () => {
+    const backgroundLocation = settingsRouteState?.backgroundLocation ?? settingsBackgroundRef.current
+    if (backgroundLocation.pathname === '/settings') {
+      navigate('/home', { replace: true })
+      return
+    }
+    navigate(
+      {
+        pathname: backgroundLocation.pathname,
+        search: backgroundLocation.search,
+        hash: backgroundLocation.hash
+      },
+      {
+        replace: true,
+        state: backgroundLocation.state
+      }
+    )
+  }
+
   return (
     <div className="app-container">
       <div className="window-drag-region" aria-hidden="true" />
@@ -439,7 +484,10 @@ function App() {
           useHello={lockUseHello}
         />
       )}
-      <TitleBar />
+      <TitleBar
+        sidebarCollapsed={sidebarCollapsed}
+        onToggleSidebar={() => setSidebarCollapsed((prev) => !prev)}
+      />
 
       {/* 全局悬浮进度胶囊 (处理：新版本提示、下载进度、错误提示) */}
       <UpdateProgressCapsule />
@@ -550,27 +598,29 @@ function App() {
       />
 
       <div className="main-layout">
-        <Sidebar />
+        <Sidebar collapsed={sidebarCollapsed} />
         <main className="content">
           <RouteGuard>
             <div className={`export-keepalive-page ${isExportRoute ? 'active' : 'hidden'}`} aria-hidden={!isExportRoute}>
               <ExportPage />
             </div>
 
-            <Routes>
+            <Routes location={routeLocation}>
               <Route path="/" element={<HomePage />} />
               <Route path="/home" element={<HomePage />} />
               <Route path="/chat" element={<ChatPage />} />
 
-              <Route path="/analytics" element={<AnalyticsWelcomePage />} />
-              <Route path="/analytics/view" element={<AnalyticsPage />} />
-              <Route path="/group-analytics" element={<GroupAnalyticsPage />} />
+              <Route path="/analytics" element={<ChatAnalyticsHubPage />} />
+              <Route path="/analytics/private" element={<AnalyticsWelcomePage />} />
+              <Route path="/analytics/private/view" element={<AnalyticsPage />} />
+              <Route path="/analytics/group" element={<GroupAnalyticsPage />} />
+              <Route path="/analytics/view" element={<RouteStateRedirect to="/analytics/private/view" />} />
+              <Route path="/group-analytics" element={<RouteStateRedirect to="/analytics/group" />} />
               <Route path="/annual-report" element={<AnnualReportPage />} />
               <Route path="/annual-report/view" element={<AnnualReportWindow />} />
               <Route path="/dual-report" element={<DualReportPage />} />
               <Route path="/dual-report/view" element={<DualReportWindow />} />
 
-              <Route path="/settings" element={<SettingsPage />} />
               <Route path="/export" element={<div className="export-route-anchor" aria-hidden="true" />} />
               <Route path="/sns" element={<SnsPage />} />
               <Route path="/contacts" element={<ContactsPage />} />
@@ -579,6 +629,10 @@ function App() {
           </RouteGuard>
         </main>
       </div>
+
+      {isSettingsRoute && (
+        <SettingsPage onClose={handleCloseSettings} />
+      )}
     </div>
   )
 }
diff --git a/src/components/ChatAnalysisHeader.scss b/src/components/ChatAnalysisHeader.scss
new file mode 100644
index 0000000..4e5e99f
--- /dev/null
+++ b/src/components/ChatAnalysisHeader.scss
@@ -0,0 +1,136 @@
+.chat-analysis-header {
+  position: relative;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  min-height: 28px;
+  padding: 4px 0;
+  background: transparent;
+  border: none;
+  border-radius: 0;
+  flex-shrink: 0;
+}
+
+.chat-analysis-back {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 0;
+  border: none;
+  background: transparent;
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: color 0.2s ease;
+  font-size: 13px;
+  font-weight: 600;
+
+  &:hover {
+    color: var(--text-primary);
+  }
+}
+
+.chat-analysis-breadcrumb {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 13px;
+  color: var(--text-secondary);
+
+  .chat-analysis-breadcrumb-separator {
+    opacity: 0.6;
+  }
+}
+
+.chat-analysis-dropdown {
+  position: relative;
+}
+
+.chat-analysis-current-trigger {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 0;
+  border: none;
+  background: transparent;
+  color: var(--text-secondary);
+  cursor: pointer;
+  font-size: 13px;
+  font-weight: 600;
+  transition: color 0.2s ease;
+
+  .current {
+    color: var(--text-primary);
+  }
+
+  svg {
+    transition: transform 0.2s ease;
+  }
+
+  &:hover {
+    color: var(--text-primary);
+  }
+
+  &.open svg {
+    transform: rotate(180deg);
+  }
+}
+
+.chat-analysis-menu {
+  position: absolute;
+  top: calc(100% + 10px);
+  right: 0;
+  min-width: 120px;
+  padding: 6px;
+  background: var(--card-bg);
+  border: 1px solid var(--border-color);
+  border-radius: 12px;
+  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
+  z-index: 20;
+}
+
+.chat-analysis-menu-item {
+  width: 100%;
+  display: block;
+  padding: 9px 12px;
+  border: none;
+  border-radius: 8px;
+  background: transparent;
+  color: var(--text-primary);
+  text-align: left;
+  cursor: pointer;
+  font-size: 13px;
+  font-weight: 500;
+  transition: background 0.2s ease, color 0.2s ease;
+
+  &:hover {
+    background: var(--bg-hover);
+    color: var(--primary);
+  }
+}
+
+.chat-analysis-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+  margin-left: auto;
+  flex-wrap: wrap;
+}
+
+@media (max-width: 768px) {
+  .chat-analysis-header {
+    align-items: flex-start;
+    flex-wrap: wrap;
+  }
+
+  .chat-analysis-breadcrumb {
+    flex-wrap: wrap;
+    row-gap: 4px;
+  }
+
+  .chat-analysis-actions {
+    width: 100%;
+    justify-content: flex-start;
+  }
+}
diff --git a/src/components/ChatAnalysisHeader.tsx b/src/components/ChatAnalysisHeader.tsx
new file mode 100644
index 0000000..112a15d
--- /dev/null
+++ b/src/components/ChatAnalysisHeader.tsx
@@ -0,0 +1,105 @@
+import { ChevronDown, ChevronLeft } from 'lucide-react'
+import { useEffect, useMemo, useRef, useState, type ReactNode } from 'react'
+import { useNavigate } from 'react-router-dom'
+import './ChatAnalysisHeader.scss'
+
+export type ChatAnalysisMode = 'private' | 'group'
+
+interface ChatAnalysisHeaderProps {
+  currentMode: ChatAnalysisMode
+  actions?: ReactNode
+}
+
+const MODE_CONFIG: Record<ChatAnalysisMode, { label: string; path: string }> = {
+  private: {
+    label: '私聊分析',
+    path: '/analytics/private'
+  },
+  group: {
+    label: '群聊分析',
+    path: '/analytics/group'
+  }
+}
+
+function ChatAnalysisHeader({ currentMode, actions }: ChatAnalysisHeaderProps) {
+  const navigate = useNavigate()
+  const currentLabel = MODE_CONFIG[currentMode].label
+  const [menuOpen, setMenuOpen] = useState(false)
+  const dropdownRef = useRef<HTMLDivElement | null>(null)
+  const alternateMode = useMemo(
+    () => (currentMode === 'private' ? 'group' : 'private'),
+    [currentMode]
+  )
+
+  useEffect(() => {
+    if (!menuOpen) return
+
+    const handleClickOutside = (event: MouseEvent) => {
+      if (!dropdownRef.current?.contains(event.target as Node)) {
+        setMenuOpen(false)
+      }
+    }
+
+    const handleEscape = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') {
+        setMenuOpen(false)
+      }
+    }
+
+    document.addEventListener('mousedown', handleClickOutside)
+    document.addEventListener('keydown', handleEscape)
+
+    return () => {
+      document.removeEventListener('mousedown', handleClickOutside)
+      document.removeEventListener('keydown', handleEscape)
+    }
+  }, [menuOpen])
+
+  return (
+    <div className="chat-analysis-header">
+      <div className="chat-analysis-breadcrumb">
+        <button
+          type="button"
+          className="chat-analysis-back"
+          onClick={() => navigate('/analytics')}
+        >
+          <ChevronLeft size={16} />
+          <span>聊天分析</span>
+        </button>
+        <span className="chat-analysis-breadcrumb-separator">/</span>
+        <div className="chat-analysis-dropdown" ref={dropdownRef}>
+          <button
+            type="button"
+            className={`chat-analysis-current-trigger ${menuOpen ? 'open' : ''}`}
+            aria-haspopup="menu"
+            aria-expanded={menuOpen}
+            onClick={() => setMenuOpen((prev) => !prev)}
+          >
+            <span className="current">{currentLabel}</span>
+            <ChevronDown size={14} />
+          </button>
+
+          {menuOpen && (
+            <div className="chat-analysis-menu" role="menu" aria-label="切换聊天分析类型">
+              <button
+                type="button"
+                role="menuitem"
+                className="chat-analysis-menu-item"
+                onClick={() => {
+                  setMenuOpen(false)
+                  navigate(MODE_CONFIG[alternateMode].path)
+                }}
+              >
+                {MODE_CONFIG[alternateMode].label}
+              </button>
+            </div>
+          )}
+        </div>
+      </div>
+
+      {actions ? <div className="chat-analysis-actions">{actions}</div> : null}
+    </div>
+  )
+}
+
+export default ChatAnalysisHeader
diff --git a/src/components/ErrorBoundary.tsx b/src/components/ErrorBoundary.tsx
new file mode 100644
index 0000000..6d02c86
--- /dev/null
+++ b/src/components/ErrorBoundary.tsx
@@ -0,0 +1,41 @@
+import { Component, ReactNode } from 'react'
+
+interface Props {
+  children: ReactNode
+  fallback?: ReactNode
+}
+
+interface State {
+  hasError: boolean
+  error?: Error
+}
+
+export class ErrorBoundary extends Component<Props, State> {
+  constructor(props: Props) {
+    super(props)
+    this.state = { hasError: false }
+  }
+
+  static getDerivedStateFromError(error: Error): State {
+    return { hasError: true, error }
+  }
+
+  componentDidCatch(error: Error, errorInfo: any) {
+    console.error('ErrorBoundary caught:', error, errorInfo)
+  }
+
+  render() {
+    if (this.state.hasError) {
+      return this.props.fallback || (
+        <div style={{ padding: '20px', textAlign: 'center', color: '#999' }}>
+          <p>消息渲染出错</p>
+          <p style={{ fontSize: '12px', marginTop: '8px' }}>
+            {this.state.error?.message || '未知错误'}
+          </p>
+        </div>
+      )
+    }
+
+    return this.props.children
+  }
+}
diff --git a/src/components/Sidebar.scss b/src/components/Sidebar.scss
index bdead0a..810815b 100644
--- a/src/components/Sidebar.scss
+++ b/src/components/Sidebar.scss
@@ -43,31 +43,52 @@
 .sidebar-user-card-wrap {
   position: relative;
   margin: 0 12px 10px;
+  --sidebar-user-menu-width: 172px;
 }
 
-.sidebar-user-clear-trigger {
+.sidebar-user-menu {
   position: absolute;
   left: 0;
-  right: 0;
+  right: auto;
   bottom: calc(100% + 8px);
+  width: max(100%, var(--sidebar-user-menu-width));
   z-index: 12;
-  border: 1px solid rgba(255, 59, 48, 0.28);
+  border: 1px solid var(--border-color);
+  border-radius: 12px;
+  background: var(--bg-secondary-solid, var(--bg-primary));
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  padding: 6px;
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
+}
+
+.sidebar-user-menu-item {
+  width: 100%;
+  border: none;
   border-radius: 10px;
-  background: var(--bg-secondary);
-  color: #d93025;
-  padding: 8px 10px;
+  background: transparent;
+  color: var(--text-primary);
+  padding: 9px 10px;
   display: flex;
   align-items: center;
   gap: 8px;
-  font-size: 12px;
-  font-weight: 600;
+  font-size: 13px;
+  font-weight: 500;
   cursor: pointer;
-  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
-  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
+  text-align: left;
+  transition: background 0.2s ease, color 0.2s ease;
 
   &:hover {
-    background: rgba(255, 59, 48, 0.08);
-    border-color: rgba(255, 59, 48, 0.46);
+    background: var(--bg-tertiary);
+  }
+
+  &.danger {
+    color: #d93025;
+
+    &:hover {
+      background: rgba(255, 59, 48, 0.08);
+    }
   }
 }
 
@@ -244,26 +265,6 @@
   gap: 4px;
 }
 
-.collapse-btn {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  width: 100%;
-  padding: 8px;
-  border: none;
-  background: transparent;
-  color: var(--text-tertiary);
-  cursor: pointer;
-  border-radius: 9999px;
-  transition: all 0.2s ease;
-  margin-top: 4px;
-
-  &:hover {
-    background: var(--bg-tertiary);
-    color: var(--text-primary);
-  }
-}
-
 .sidebar-clear-dialog-overlay {
   position: fixed;
   inset: 0;
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 76547fb..e215448 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -1,6 +1,6 @@
 import { useState, useEffect, useRef } from 'react'
 import { NavLink, useLocation, useNavigate } from 'react-router-dom'
-import { Home, MessageSquare, BarChart3, Users, FileText, Settings, ChevronLeft, ChevronRight, Download, Aperture, UserCircle, Lock, LockOpen, ChevronUp, Trash2 } from 'lucide-react'
+import { Home, MessageSquare, BarChart3, FileText, Settings, Download, Aperture, UserCircle, Lock, LockOpen, ChevronUp, Trash2 } from 'lucide-react'
 import { useAppStore } from '../stores/appStore'
 import * as configService from '../services/config'
 import { onExportSessionStatus, requestExportSessionStatus } from '../services/exportBridge'
@@ -62,10 +62,13 @@ const normalizeAccountId = (value?: string | null): string => {
   return suffixMatch ? suffixMatch[1] : trimmed
 }
 
-function Sidebar() {
+interface SidebarProps {
+  collapsed: boolean
+}
+
+function Sidebar({ collapsed }: SidebarProps) {
   const location = useLocation()
   const navigate = useNavigate()
-  const [collapsed, setCollapsed] = useState(false)
   const [authEnabled, setAuthEnabled] = useState(false)
   const [activeExportTaskCount, setActiveExportTaskCount] = useState(0)
   const [userProfile, setUserProfile] = useState<SidebarUserProfile>({
@@ -279,6 +282,15 @@ function Sidebar() {
     setShowClearAccountDialog(true)
   }
 
+  const openSettingsFromAccountMenu = () => {
+    setIsAccountMenuOpen(false)
+    navigate('/settings', {
+      state: {
+        backgroundLocation: location
+      }
+    })
+  }
+
   const handleConfirmClearAccountData = async () => {
     if (!canConfirmClear || isClearingAccountData) return
     setIsClearingAccountData(true)
@@ -375,24 +387,14 @@ function Sidebar() {
           <span className="nav-label">通讯录</span>
         </NavLink>
 
-        {/* 私聊分析 */}
+        {/* 聊天分析 */}
         <NavLink
           to="/analytics"
           className={`nav-item ${isActive('/analytics') ? 'active' : ''}`}
-          title={collapsed ? '私聊分析' : undefined}
+          title={collapsed ? '聊天分析' : undefined}
         >
           <span className="nav-icon"><BarChart3 size={20} /></span>
-          <span className="nav-label">私聊分析</span>
-        </NavLink>
-
-        {/* 群聊分析 */}
-        <NavLink
-          to="/group-analytics"
-          className={`nav-item ${isActive('/group-analytics') ? 'active' : ''}`}
-          title={collapsed ? '群聊分析' : undefined}
-        >
-          <span className="nav-icon"><Users size={20} /></span>
-          <span className="nav-label">群聊分析</span>
+          <span className="nav-label">聊天分析</span>
         </NavLink>
 
         {/* 年度报告 */}
@@ -427,16 +429,48 @@ function Sidebar() {
       </nav>
 
       <div className="sidebar-footer">
+        <button
+          className="nav-item"
+          onClick={() => {
+            if (authEnabled) {
+              setLocked(true)
+              return
+            }
+            navigate('/settings', {
+              state: {
+                initialTab: 'security',
+                backgroundLocation: location
+              }
+            })
+          }}
+          title={collapsed ? (authEnabled ? '锁定' : '未锁定') : undefined}
+        >
+          <span className="nav-icon">{authEnabled ? <Lock size={20} /> : <LockOpen size={20} />}</span>
+          <span className="nav-label">{authEnabled ? '锁定' : '未锁定'}</span>
+        </button>
+
         <div className="sidebar-user-card-wrap" ref={accountCardWrapRef}>
           {isAccountMenuOpen && (
-            <button
-              className="sidebar-user-clear-trigger"
-              onClick={openClearAccountDialog}
-              type="button"
-            >
-              <Trash2 size={14} />
-              <span>清除此账号所有数据</span>
-            </button>
+            <div className="sidebar-user-menu" role="menu" aria-label="账号菜单">
+              <button
+                className="sidebar-user-menu-item"
+                onClick={openSettingsFromAccountMenu}
+                type="button"
+                role="menuitem"
+              >
+                <Settings size={14} />
+                <span>设置</span>
+              </button>
+              <button
+                className="sidebar-user-menu-item danger"
+                onClick={openClearAccountDialog}
+                type="button"
+                role="menuitem"
+              >
+                <Trash2 size={14} />
+                <span>清除数据</span>
+              </button>
+            </div>
           )}
           <div
             className={`sidebar-user-card ${isAccountMenuOpen ? 'menu-open' : ''}`}
@@ -465,40 +499,6 @@ function Sidebar() {
             )}
           </div>
         </div>
-
-        <button
-          className="nav-item"
-          onClick={() => {
-            if (authEnabled) {
-              setLocked(true)
-              return
-            }
-            navigate('/settings', { state: { initialTab: 'security' } })
-          }}
-          title={collapsed ? (authEnabled ? '锁定' : '未锁定') : undefined}
-        >
-          <span className="nav-icon">{authEnabled ? <Lock size={20} /> : <LockOpen size={20} />}</span>
-          <span className="nav-label">{authEnabled ? '锁定' : '未锁定'}</span>
-        </button>
-
-        <NavLink
-          to="/settings"
-          className={`nav-item ${isActive('/settings') ? 'active' : ''}`}
-          title={collapsed ? '设置' : undefined}
-        >
-          <span className="nav-icon">
-            <Settings size={20} />
-          </span>
-          <span className="nav-label">设置</span>
-        </NavLink>
-
-        <button
-          className="collapse-btn"
-          onClick={() => setCollapsed(!collapsed)}
-          title={collapsed ? '展开菜单' : '收起菜单'}
-        >
-          {collapsed ? <ChevronRight size={18} /> : <ChevronLeft size={18} />}
-        </button>
       </div>
 
       {showClearAccountDialog && (
diff --git a/src/components/Sns/SnsFilterPanel.tsx b/src/components/Sns/SnsFilterPanel.tsx
index b7e6a49..654d543 100644
--- a/src/components/Sns/SnsFilterPanel.tsx
+++ b/src/components/Sns/SnsFilterPanel.tsx
@@ -1,5 +1,5 @@
 import React from 'react'
-import { Search, User, X, Loader2 } from 'lucide-react'
+import { Search, User, X, Loader2, CheckSquare, Square, Download } from 'lucide-react'
 import { Avatar } from '../Avatar'
 
 interface Contact {
@@ -25,7 +25,12 @@ interface SnsFilterPanelProps {
     setContactSearch: (val: string) => void
     loading?: boolean
     contactsCountProgress?: ContactsCountProgress
+    selectedContactUsernames: string[]
+    activeContactUsername?: string
     onOpenContactTimeline: (contact: Contact) => void
+    onToggleContactSelected: (contact: Contact) => void
+    onClearSelectedContacts: () => void
+    onExportSelectedContacts: () => void
 }
 
 export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
@@ -37,12 +42,21 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
     setContactSearch,
     loading,
     contactsCountProgress,
-    onOpenContactTimeline
+    selectedContactUsernames,
+    activeContactUsername,
+    onOpenContactTimeline,
+    onToggleContactSelected,
+    onClearSelectedContacts,
+    onExportSelectedContacts
 }) => {
     const filteredContacts = contacts.filter(c =>
         (c.displayName || '').toLowerCase().includes(contactSearch.toLowerCase()) ||
         c.username.toLowerCase().includes(contactSearch.toLowerCase())
     )
+    const selectedContactLookup = React.useMemo(
+        () => new Set(selectedContactUsernames),
+        [selectedContactUsernames]
+    )
 
     const clearFilters = () => {
         setSearchKeyword('')
@@ -122,35 +136,69 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
                         </div>
                     )}
 
+                    <div className="contact-interaction-hint">
+                        点左侧可多选下载，点右侧可查看单人详情
+                    </div>
+
                     <div className="contact-list-scroll">
                         {filteredContacts.map(contact => {
                             const isPostCountReady = contact.postCountStatus === 'ready'
+                            const isSelected = selectedContactLookup.has(contact.username)
+                            const isActive = activeContactUsername === contact.username
                             return (
-                            <div
-                                key={contact.username}
-                                className="contact-row"
-                                onClick={() => onOpenContactTimeline(contact)}
-                            >
-                                <Avatar src={contact.avatarUrl} name={contact.displayName} size={36} shape="rounded" />
-                                <div className="contact-meta">
-                                    <span className="contact-name">{contact.displayName}</span>
+                                <div
+                                    key={contact.username}
+                                    className={`contact-row${isSelected ? ' is-selected' : ''}${isActive ? ' is-active' : ''}`}
+                                >
+                                    <button
+                                        type="button"
+                                        className={`contact-select-btn${isSelected ? ' checked' : ''}`}
+                                        onClick={() => onToggleContactSelected(contact)}
+                                        title={isSelected ? `取消选择 ${contact.displayName}` : `选择 ${contact.displayName}`}
+                                        aria-pressed={isSelected}
+                                    >
+                                        {isSelected ? <CheckSquare size={16} /> : <Square size={16} />}
+                                    </button>
+                                    <button
+                                        type="button"
+                                        className="contact-main-btn"
+                                        onClick={() => onOpenContactTimeline(contact)}
+                                        title={`查看 ${contact.displayName} 的朋友圈`}
+                                    >
+                                        <Avatar src={contact.avatarUrl} name={contact.displayName} size={36} shape="rounded" />
+                                        <div className="contact-meta">
+                                            <span className="contact-name">{contact.displayName}</span>
+                                        </div>
+                                        <div className="contact-post-count-wrap">
+                                            {isPostCountReady ? (
+                                                <span className="contact-post-count">{Math.max(0, Math.floor(Number(contact.postCount || 0)))}条</span>
+                                            ) : (
+                                                <span className="contact-post-count-loading" title="统计中">
+                                                    <Loader2 size={13} className="spinning" />
+                                                </span>
+                                            )}
+                                        </div>
+                                    </button>
                                 </div>
-                                <div className="contact-post-count-wrap">
-                                    {isPostCountReady ? (
-                                        <span className="contact-post-count">{Math.max(0, Math.floor(Number(contact.postCount || 0)))}条</span>
-                                    ) : (
-                                        <span className="contact-post-count-loading" title="统计中">
-                                            <Loader2 size={13} className="spinning" />
-                                        </span>
-                                    )}
-                                </div>
-                            </div>
                             )
                         })}
                         {filteredContacts.length === 0 && (
                             <div className="empty-state">{getEmptyStateText()}</div>
                         )}
                     </div>
+
+                    {selectedContactUsernames.length > 0 && (
+                        <div className="contact-batch-bar">
+                            <span className="contact-batch-summary">已选 {selectedContactUsernames.length} 人</span>
+                            <button type="button" className="contact-batch-btn" onClick={onClearSelectedContacts}>
+                                清空
+                            </button>
+                            <button type="button" className="contact-batch-btn primary" onClick={onExportSelectedContacts}>
+                                <Download size={14} />
+                                <span>下载所选</span>
+                            </button>
+                        </div>
+                    )}
                 </div>
             </div>
         </aside>
diff --git a/src/components/TitleBar.scss b/src/components/TitleBar.scss
index 9c18972..139083c 100644
--- a/src/components/TitleBar.scss
+++ b/src/components/TitleBar.scss
@@ -4,10 +4,13 @@
   display: flex;
   align-items: center;
   padding-left: 16px;
+  padding-right: 16px;
   border-bottom: 1px solid var(--border-color);
   -webkit-app-region: drag;
   flex-shrink: 0;
   gap: 8px;
+  position: relative;
+  z-index: 2101;
 }
 
 // 繁花如梦：标题栏毛玻璃
@@ -16,6 +19,12 @@
   -webkit-backdrop-filter: blur(20px);
 }
 
+.title-brand {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+}
+
 .title-logo {
   width: 20px;
   height: 20px;
@@ -27,3 +36,24 @@
   font-weight: 500;
   color: var(--text-secondary);
 }
+
+.title-sidebar-toggle {
+  width: 28px;
+  height: 28px;
+  padding: 0;
+  border: none;
+  border-radius: 8px;
+  background: transparent;
+  color: var(--text-tertiary);
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: background 0.2s ease, color 0.2s ease;
+  -webkit-app-region: no-drag;
+
+  &:hover {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+  }
+}
diff --git a/src/components/TitleBar.tsx b/src/components/TitleBar.tsx
index 570e6e9..7b1b4e0 100644
--- a/src/components/TitleBar.tsx
+++ b/src/components/TitleBar.tsx
@@ -1,14 +1,30 @@
+import { PanelLeftClose, PanelLeftOpen } from 'lucide-react'
 import './TitleBar.scss'
 
 interface TitleBarProps {
   title?: string
+  sidebarCollapsed?: boolean
+  onToggleSidebar?: () => void
 }
 
-function TitleBar({ title }: TitleBarProps = {}) {
+function TitleBar({ title, sidebarCollapsed = false, onToggleSidebar }: TitleBarProps = {}) {
   return (
     <div className="title-bar">
-      <img src="./logo.png" alt="WeFlow" className="title-logo" />
-      <span className="titles">{title || 'WeFlow'}</span>
+      <div className="title-brand">
+        <img src="./logo.png" alt="WeFlow" className="title-logo" />
+        <span className="titles">{title || 'WeFlow'}</span>
+        {onToggleSidebar ? (
+          <button
+            type="button"
+            className="title-sidebar-toggle"
+            onClick={onToggleSidebar}
+            title={sidebarCollapsed ? '展开菜单' : '收起菜单'}
+            aria-label={sidebarCollapsed ? '展开菜单' : '收起菜单'}
+          >
+            {sidebarCollapsed ? <PanelLeftOpen size={16} /> : <PanelLeftClose size={16} />}
+          </button>
+        ) : null}
+      </div>
     </div>
   )
 }
diff --git a/src/pages/AnalyticsPage.scss b/src/pages/AnalyticsPage.scss
index 73d7ca9..f905f4d 100644
--- a/src/pages/AnalyticsPage.scss
+++ b/src/pages/AnalyticsPage.scss
@@ -1,3 +1,15 @@
+.analytics-page-shell {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  min-height: 100%;
+
+  .loading-container,
+  .error-container {
+    flex: 1;
+  }
+}
+
 // 加载和错误状态
 .loading-container,
 .error-container {
@@ -53,24 +65,6 @@
   }
 }
 
-.page-header {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 12px;
-  margin-bottom: 16px;
-
-  h1 {
-    margin: 0;
-  }
-
-  .header-actions {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-  }
-}
-
 @keyframes spin {
   from {
     transform: rotate(0deg);
diff --git a/src/pages/AnalyticsPage.tsx b/src/pages/AnalyticsPage.tsx
index 1557679..a689089 100644
--- a/src/pages/AnalyticsPage.tsx
+++ b/src/pages/AnalyticsPage.tsx
@@ -1,11 +1,18 @@
-import { useState, useEffect, useCallback } from 'react'
+import { useState, useEffect, useCallback, type ReactNode } from 'react'
 import { useLocation } from 'react-router-dom'
 import { Users, Clock, MessageSquare, Send, Inbox, Calendar, Loader2, RefreshCw, Medal, UserMinus, Search, X } from 'lucide-react'
 import ReactECharts from 'echarts-for-react'
 import { useAnalyticsStore } from '../stores/analyticsStore'
 import { useThemeStore } from '../stores/themeStore'
+import {
+  finishBackgroundTask,
+  isBackgroundTaskCancelRequested,
+  registerBackgroundTask,
+  updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import './AnalyticsPage.scss'
 import { Avatar } from '../components/Avatar'
+import ChatAnalysisHeader from '../components/ChatAnalysisHeader'
 
 interface ExcludeCandidate {
   username: string
@@ -48,6 +55,13 @@ function AnalyticsPage() {
 
   const loadData = useCallback(async (forceRefresh = false) => {
     if (isLoaded && !forceRefresh) return
+    const taskId = registerBackgroundTask({
+      sourcePage: 'analytics',
+      title: forceRefresh ? '刷新分析看板' : '加载分析看板',
+      detail: '准备读取整体统计数据',
+      progressText: '整体统计',
+      cancelable: true
+    })
     setIsLoading(true)
     setError(null)
     setProgress(0)
@@ -60,27 +74,70 @@ function AnalyticsPage() {
 
     try {
       setLoadingStatus('正在统计消息数据...')
+      updateBackgroundTask(taskId, {
+        detail: '正在统计消息数据',
+        progressText: '整体统计'
+      })
       const statsResult = await window.electronAPI.analytics.getOverallStatistics(forceRefresh)
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，当前页面分析流程已结束'
+        })
+        setIsLoading(false)
+        return
+      }
       if (statsResult.success && statsResult.data) {
         setStatistics(statsResult.data)
       } else {
         setError(statsResult.error || '加载统计数据失败')
+        finishBackgroundTask(taskId, 'failed', {
+          detail: statsResult.error || '加载统计数据失败'
+        })
         setIsLoading(false)
         return
       }
       setLoadingStatus('正在分析联系人排名...')
+      updateBackgroundTask(taskId, {
+        detail: '正在分析联系人排名',
+        progressText: '联系人排名'
+      })
       const rankingsResult = await window.electronAPI.analytics.getContactRankings(20)
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，联系人排名后续步骤未继续'
+        })
+        setIsLoading(false)
+        return
+      }
       if (rankingsResult.success && rankingsResult.data) {
         setRankings(rankingsResult.data)
       }
       setLoadingStatus('正在计算时间分布...')
+      updateBackgroundTask(taskId, {
+        detail: '正在计算时间分布',
+        progressText: '时间分布'
+      })
       const timeResult = await window.electronAPI.analytics.getTimeDistribution()
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，时间分布结果未继续写入'
+        })
+        setIsLoading(false)
+        return
+      }
       if (timeResult.success && timeResult.data) {
         setTimeDistribution(timeResult.data)
       }
       markLoaded()
+      finishBackgroundTask(taskId, 'completed', {
+        detail: '分析看板数据加载完成',
+        progressText: '已完成'
+      })
     } catch (e) {
       setError(String(e))
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(e)
+      })
     } finally {
       setIsLoading(false)
       if (removeListener) removeListener()
@@ -360,8 +417,28 @@ function AnalyticsPage() {
     }
   }
 
+  const renderPageShell = (content: ReactNode) => (
+    <div className="analytics-page-shell">
+      <ChatAnalysisHeader currentMode="private" />
+      {content}
+    </div>
+  )
+
+  const analyticsHeaderActions = (
+    <>
+      <button className="btn btn-secondary" onClick={handleRefresh} disabled={isLoading}>
+        <RefreshCw size={16} className={isLoading ? 'spin' : ''} />
+        {isLoading ? '刷新中...' : '刷新'}
+      </button>
+      <button className="btn btn-secondary" onClick={openExcludeDialog}>
+        <UserMinus size={16} />
+        排除好友{excludedUsernames.size > 0 ? ` (${excludedUsernames.size})` : ''}
+      </button>
+    </>
+  )
+
   if (isLoading && !isLoaded) {
-    return (
+    return renderPageShell(
       <div className="loading-container">
         <Loader2 size={48} className="spin" />
         <p className="loading-status">{loadingStatus}</p>
@@ -374,7 +451,7 @@ function AnalyticsPage() {
   }
 
   if (error && !isLoaded && isNoSessionError && excludedUsernames.size > 0) {
-    return (
+    return renderPageShell(
       <div className="error-container">
         <p>{error}</p>
         <div className="error-actions">
@@ -390,25 +467,18 @@ function AnalyticsPage() {
   }
 
   if (error && !isLoaded) {
-    return (<div className="error-container"><p>{error}</p><button className="btn btn-primary" onClick={() => loadData(true)}>重试</button></div>)
+    return renderPageShell(
+      <div className="error-container">
+        <p>{error}</p>
+        <button className="btn btn-primary" onClick={() => loadData(true)}>重试</button>
+      </div>
+    )
   }
 
 
   return (
-    <>
-      <div className="page-header">
-        <h1>私聊分析</h1>
-        <div className="header-actions">
-          <button className="btn btn-secondary" onClick={handleRefresh} disabled={isLoading}>
-            <RefreshCw size={16} className={isLoading ? 'spin' : ''} />
-            {isLoading ? '刷新中...' : '刷新'}
-          </button>
-          <button className="btn btn-secondary" onClick={openExcludeDialog}>
-            <UserMinus size={16} />
-            排除好友{excludedUsernames.size > 0 ? ` (${excludedUsernames.size})` : ''}
-          </button>
-        </div>
-      </div>
+    <div className="analytics-page-shell">
+      <ChatAnalysisHeader currentMode="private" actions={analyticsHeaderActions} />
       <div className="page-scroll">
         <section className="page-section">
           <div className="stats-overview">
@@ -556,7 +626,7 @@ function AnalyticsPage() {
           </div>
         </div>
       )}
-    </>
+    </div>
   )
 }
 
diff --git a/src/pages/AnalyticsWelcomePage.scss b/src/pages/AnalyticsWelcomePage.scss
index 7a61efb..0e698bc 100644
--- a/src/pages/AnalyticsWelcomePage.scss
+++ b/src/pages/AnalyticsWelcomePage.scss
@@ -1,13 +1,30 @@
+.analytics-entry-page {
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+    min-height: 100%;
+}
+
 .analytics-welcome-container {
     display: flex;
     flex-direction: column;
+    flex: 1;
     align-items: center;
     justify-content: center;
-    height: 100%;
+    min-height: 0;
     padding: 40px;
     background: var(--bg-primary);
     color: var(--text-primary);
     animation: fadeIn 0.4s ease-out;
+    overflow-y: auto;
+
+    &.analytics-welcome-container--mode {
+        border-radius: 20px;
+        border: 1px solid var(--border-color);
+        background:
+            radial-gradient(circle at top, rgba(7, 193, 96, 0.06), transparent 48%),
+            var(--bg-primary);
+    }
 
     .welcome-content {
         text-align: center;
@@ -106,6 +123,18 @@
     }
 }
 
+@media (max-width: 768px) {
+    .analytics-welcome-container {
+        padding: 28px 18px;
+
+        .welcome-content {
+            .action-cards {
+                grid-template-columns: 1fr;
+            }
+        }
+    }
+}
+
 @keyframes fadeIn {
     from {
         opacity: 0;
@@ -116,4 +145,4 @@
         opacity: 1;
         transform: translateY(0);
     }
-}
\ No newline at end of file
+}
diff --git a/src/pages/AnalyticsWelcomePage.tsx b/src/pages/AnalyticsWelcomePage.tsx
index 38a5f9f..e5344ae 100644
--- a/src/pages/AnalyticsWelcomePage.tsx
+++ b/src/pages/AnalyticsWelcomePage.tsx
@@ -1,6 +1,7 @@
 import { useNavigate } from 'react-router-dom'
 import { BarChart2, History, RefreshCcw } from 'lucide-react'
 import { useAnalyticsStore } from '../stores/analyticsStore'
+import ChatAnalysisHeader from '../components/ChatAnalysisHeader'
 import './AnalyticsWelcomePage.scss'
 
 function AnalyticsWelcomePage() {
@@ -14,11 +15,11 @@ function AnalyticsWelcomePage() {
     const { lastLoadTime } = useAnalyticsStore()
 
     const handleLoadCache = () => {
-        navigate('/analytics/view')
+        navigate('/analytics/private/view')
     }
 
     const handleNewAnalysis = () => {
-        navigate('/analytics/view', { state: { forceRefresh: true } })
+        navigate('/analytics/private/view', { state: { forceRefresh: true } })
     }
 
     const formatLastTime = (ts: number | null) => {
@@ -27,33 +28,37 @@ function AnalyticsWelcomePage() {
     }
 
     return (
-        <div className="analytics-welcome-container">
-            <div className="welcome-content">
-                <div className="icon-wrapper">
-                    <BarChart2 size={40} />
-                </div>
-                <h1>私聊数据分析</h1>
-                <p>
-                    WeFlow 可以分析你的聊天记录，生成详细的统计报表。<br />
-                    你可以选择加载上次的分析结果（速度快），或者开始新的分析（数据最新）。
-                </p>
+        <div className="analytics-entry-page">
+            <ChatAnalysisHeader currentMode="private" />
 
-                <div className="action-cards">
-                    <button onClick={handleLoadCache}>
-                        <div className="card-icon">
-                            <History size={24} />
-                        </div>
-                        <h3>加载缓存</h3>
-                        <span>查看上次分析结果<br />(上次更新: {formatLastTime(lastLoadTime)})</span>
-                    </button>
+            <div className="analytics-welcome-container analytics-welcome-container--mode">
+                <div className="welcome-content">
+                    <div className="icon-wrapper">
+                        <BarChart2 size={40} />
+                    </div>
+                    <h1>私聊数据分析</h1>
+                    <p>
+                        WeFlow 可以分析你的好友聊天记录，生成详细的统计报表。<br />
+                        你可以选择加载上次的分析结果，或者重新开始一次新的私聊分析。
+                    </p>
 
-                    <button onClick={handleNewAnalysis}>
-                        <div className="card-icon">
-                            <RefreshCcw size={24} />
-                        </div>
-                        <h3>新的分析</h3>
-                        <span>重新扫描并计算数据<br />(可能需要几分钟)</span>
-                    </button>
+                    <div className="action-cards">
+                        <button onClick={handleLoadCache}>
+                            <div className="card-icon">
+                                <History size={24} />
+                            </div>
+                            <h3>加载缓存</h3>
+                            <span>查看上次分析结果<br />(上次更新: {formatLastTime(lastLoadTime)})</span>
+                        </button>
+
+                        <button onClick={handleNewAnalysis}>
+                            <div className="card-icon">
+                                <RefreshCcw size={24} />
+                            </div>
+                            <h3>新的分析</h3>
+                            <span>重新扫描并计算数据<br />(可能需要几分钟)</span>
+                        </button>
+                    </div>
                 </div>
             </div>
         </div>
diff --git a/src/pages/AnnualReportPage.tsx b/src/pages/AnnualReportPage.tsx
index ded4362..018fbdb 100644
--- a/src/pages/AnnualReportPage.tsx
+++ b/src/pages/AnnualReportPage.tsx
@@ -1,6 +1,12 @@
 import { useState, useEffect } from 'react'
 import { useNavigate } from 'react-router-dom'
 import { Calendar, Loader2, Sparkles, Users } from 'lucide-react'
+import {
+  finishBackgroundTask,
+  isBackgroundTaskCancelRequested,
+  registerBackgroundTask,
+  updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import './AnnualReportPage.scss'
 
 type YearOption = number | 'all'
@@ -49,8 +55,17 @@ function AnnualReportPage() {
   useEffect(() => {
     let disposed = false
     let taskId = ''
+    let uiTaskId = ''
 
     const applyLoadPayload = (payload: YearsLoadPayload) => {
+      if (uiTaskId) {
+        updateBackgroundTask(uiTaskId, {
+          detail: payload.statusText || '正在加载可用年份',
+          progressText: payload.done
+            ? '已完成'
+            : `${Array.isArray(payload.years) ? payload.years.length : 0} 个年份`
+        })
+      }
       if (payload.strategy) setLoadStrategy(payload.strategy)
       if (payload.phase) setLoadPhase(payload.phase)
       if (typeof payload.statusText === 'string' && payload.statusText) setLoadStatusText(payload.statusText)
@@ -91,6 +106,14 @@ function AnnualReportPage() {
         setIsLoadingMoreYears(false)
         setHasYearsLoadFinished(true)
         setLoadPhase('done')
+        if (uiTaskId) {
+          finishBackgroundTask(uiTaskId, payload.canceled ? 'canceled' : 'completed', {
+            detail: payload.canceled
+              ? '年度报告年份加载已停止'
+              : `年度报告年份加载完成，共 ${years.length} 个年份`,
+            progressText: payload.canceled ? '已停止' : `${years.length} 个年份`
+          })
+        }
       } else {
         setIsLoadingMoreYears(true)
         setHasYearsLoadFinished(false)
@@ -105,6 +128,18 @@ function AnnualReportPage() {
     })
 
     const startLoad = async () => {
+      uiTaskId = registerBackgroundTask({
+        sourcePage: 'annualReport',
+        title: '年度报告年份加载',
+        detail: '准备使用原生快速模式加载年份',
+        progressText: '初始化',
+        cancelable: true,
+        onCancel: async () => {
+          if (taskId) {
+            await window.electronAPI.annualReport.cancelAvailableYearsLoad(taskId)
+          }
+        }
+      })
       setIsLoading(true)
       setIsLoadingMoreYears(true)
       setHasYearsLoadFinished(false)
@@ -120,6 +155,9 @@ function AnnualReportPage() {
       try {
         const startResult = await window.electronAPI.annualReport.startAvailableYearsLoad()
         if (!startResult.success || !startResult.taskId) {
+          finishBackgroundTask(uiTaskId, 'failed', {
+            detail: startResult.error || '加载年度数据失败'
+          })
           setLoadError(startResult.error || '加载年度数据失败')
           setIsLoading(false)
           setIsLoadingMoreYears(false)
@@ -131,6 +169,9 @@ function AnnualReportPage() {
         }
       } catch (e) {
         console.error(e)
+        finishBackgroundTask(uiTaskId, 'failed', {
+          detail: String(e)
+        })
         setLoadError(String(e))
         setIsLoading(false)
         setIsLoadingMoreYears(false)
diff --git a/src/pages/AnnualReportWindow.tsx b/src/pages/AnnualReportWindow.tsx
index 344393b..ab5fd0d 100644
--- a/src/pages/AnnualReportWindow.tsx
+++ b/src/pages/AnnualReportWindow.tsx
@@ -2,6 +2,12 @@ import { useState, useEffect, useRef } from 'react'
 import { Loader2, Download, Image, Check, X, SlidersHorizontal } from 'lucide-react'
 import html2canvas from 'html2canvas'
 import { useThemeStore } from '../stores/themeStore'
+import {
+  finishBackgroundTask,
+  isBackgroundTaskCancelRequested,
+  registerBackgroundTask,
+  updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import './AnnualReportWindow.scss'
 
 // SVG 背景图案 (用于导出)
@@ -127,12 +133,6 @@ function AnnualReportWindow() {
 
   const { currentTheme, themeMode } = useThemeStore()
 
-  // 应用主题到独立窗口
-  useEffect(() => {
-    document.documentElement.setAttribute('data-theme', currentTheme)
-    document.documentElement.setAttribute('data-mode', themeMode)
-  }, [currentTheme, themeMode])
-
   // Section refs
   const sectionRefs = {
     cover: useRef<HTMLElement>(null),
@@ -164,6 +164,13 @@ function AnnualReportWindow() {
   }, [])
 
   const generateReport = async (year: number) => {
+    const taskId = registerBackgroundTask({
+      sourcePage: 'annualReport',
+      title: '年度报告生成',
+      detail: `正在生成 ${formatYearLabel(year)} 年度报告`,
+      progressText: '初始化',
+      cancelable: true
+    })
     setIsLoading(true)
     setError(null)
     setLoadingProgress(0)
@@ -171,25 +178,46 @@ function AnnualReportWindow() {
     const removeProgressListener = window.electronAPI.annualReport.onProgress?.((payload: { status: string; progress: number }) => {
       setLoadingProgress(payload.progress)
       setLoadingStage(payload.status)
+      updateBackgroundTask(taskId, {
+        detail: payload.status || '正在生成年度报告',
+        progressText: `${Math.max(0, Math.round(payload.progress || 0))}%`
+      })
     })
 
     try {
       const result = await window.electronAPI.annualReport.generateReport(year)
       removeProgressListener?.()
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，当前报告结果未继续写入页面'
+        })
+        setIsLoading(false)
+        return
+      }
       setLoadingProgress(100)
       setLoadingStage('完成')
 
       if (result.success && result.data) {
+        finishBackgroundTask(taskId, 'completed', {
+          detail: '年度报告生成完成',
+          progressText: '100%'
+        })
         setTimeout(() => {
           setReportData(result.data!)
           setIsLoading(false)
         }, 300)
       } else {
+        finishBackgroundTask(taskId, 'failed', {
+          detail: result.error || '生成年度报告失败'
+        })
         setError(result.error || '生成报告失败')
         setIsLoading(false)
       }
     } catch (e) {
       removeProgressListener?.()
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(e)
+      })
       setError(String(e))
       setIsLoading(false)
     }
diff --git a/src/pages/ChatAnalyticsHubPage.scss b/src/pages/ChatAnalyticsHubPage.scss
new file mode 100644
index 0000000..4d970cd
--- /dev/null
+++ b/src/pages/ChatAnalyticsHubPage.scss
@@ -0,0 +1,123 @@
+.chat-analytics-hub-page {
+  min-height: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 40px 24px;
+}
+
+.chat-analytics-hub-content {
+  width: min(860px, 100%);
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  text-align: center;
+}
+
+.chat-analytics-hub-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 14px;
+  border-radius: 999px;
+  background: var(--primary-light);
+  color: var(--primary);
+  font-size: 13px;
+  font-weight: 600;
+}
+
+.chat-analytics-hub-content h1 {
+  margin: 20px 0 12px;
+  font-size: 32px;
+  line-height: 1.2;
+  color: var(--text-primary);
+}
+
+.chat-analytics-hub-desc {
+  max-width: 620px;
+  margin: 0 0 32px;
+  color: var(--text-secondary);
+  font-size: 15px;
+  line-height: 1.7;
+}
+
+.chat-analytics-hub-grid {
+  width: 100%;
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 20px;
+}
+
+.chat-analytics-entry-card {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  text-align: left;
+  gap: 14px;
+  min-height: 260px;
+  padding: 28px;
+  border: 1px solid var(--border-color);
+  border-radius: 20px;
+  background:
+    linear-gradient(180deg, rgba(7, 193, 96, 0.08) 0%, rgba(7, 193, 96, 0.02) 100%),
+    var(--card-bg);
+  color: var(--text-primary);
+  cursor: pointer;
+  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
+
+  &:hover {
+    transform: translateY(-4px);
+    border-color: rgba(7, 193, 96, 0.35);
+    box-shadow: 0 20px 36px rgba(7, 193, 96, 0.12);
+  }
+
+  .entry-card-icon {
+    width: 52px;
+    height: 52px;
+    border-radius: 16px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: rgba(7, 193, 96, 0.12);
+    color: #07c160;
+
+    &.group {
+      background: rgba(24, 119, 242, 0.12);
+      color: #1877f2;
+    }
+  }
+
+  .entry-card-header {
+    width: 100%;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+  }
+
+  h2 {
+    margin: 0;
+    font-size: 24px;
+    line-height: 1.2;
+  }
+
+  p {
+    margin: 0;
+    color: var(--text-secondary);
+    font-size: 14px;
+    line-height: 1.7;
+  }
+
+  .entry-card-cta {
+    margin-top: auto;
+    color: var(--primary);
+    font-size: 13px;
+    font-weight: 600;
+  }
+}
+
+@media (max-width: 900px) {
+  .chat-analytics-hub-grid {
+    grid-template-columns: 1fr;
+  }
+}
diff --git a/src/pages/ChatAnalyticsHubPage.tsx b/src/pages/ChatAnalyticsHubPage.tsx
new file mode 100644
index 0000000..6c4456e
--- /dev/null
+++ b/src/pages/ChatAnalyticsHubPage.tsx
@@ -0,0 +1,59 @@
+import { ArrowRight, BarChart3, MessageSquare, Users } from 'lucide-react'
+import { useNavigate } from 'react-router-dom'
+import './ChatAnalyticsHubPage.scss'
+
+function ChatAnalyticsHubPage() {
+  const navigate = useNavigate()
+
+  return (
+    <div className="chat-analytics-hub-page">
+      <div className="chat-analytics-hub-content">
+        <div className="chat-analytics-hub-badge">
+          <BarChart3 size={16} />
+          <span>聊天分析</span>
+        </div>
+
+        <h1>选择你要进入的分析视角</h1>
+        <p className="chat-analytics-hub-desc">
+          私聊分析更适合看好友聊天统计和趋势，群聊分析则用于查看群成员、发言排行和活跃时段。
+        </p>
+
+        <div className="chat-analytics-hub-grid">
+          <button
+            type="button"
+            className="chat-analytics-entry-card"
+            onClick={() => navigate('/analytics/private')}
+          >
+            <div className="entry-card-icon">
+              <MessageSquare size={24} />
+            </div>
+            <div className="entry-card-header">
+              <h2>私聊分析</h2>
+              <ArrowRight size={18} />
+            </div>
+            <p>查看好友聊天统计、消息趋势、活跃时段与联系人排名。</p>
+            <span className="entry-card-cta">进入私聊分析</span>
+          </button>
+
+          <button
+            type="button"
+            className="chat-analytics-entry-card"
+            onClick={() => navigate('/analytics/group')}
+          >
+            <div className="entry-card-icon group">
+              <Users size={24} />
+            </div>
+            <div className="entry-card-header">
+              <h2>群聊分析</h2>
+              <ArrowRight size={18} />
+            </div>
+            <p>查看群成员信息、发言排行、活跃时段和媒体内容统计。</p>
+            <span className="entry-card-cta">进入群聊分析</span>
+          </button>
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default ChatAnalyticsHubPage
diff --git a/src/pages/ChatHistoryPage.scss b/src/pages/ChatHistoryPage.scss
index 74c2af6..c108394 100644
--- a/src/pages/ChatHistoryPage.scss
+++ b/src/pages/ChatHistoryPage.scss
@@ -33,6 +33,16 @@
     gap: 12px;
     align-items: flex-start;
 
+    &.error-item {
+      padding: 12px;
+      background: var(--bg-secondary);
+      border-radius: 8px;
+      color: var(--text-tertiary);
+      font-size: 13px;
+      text-align: center;
+      justify-content: center;
+    }
+
     .avatar {
       width: 40px;
       height: 40px;
diff --git a/src/pages/ChatHistoryPage.tsx b/src/pages/ChatHistoryPage.tsx
index 45404e8..18c4f56 100644
--- a/src/pages/ChatHistoryPage.tsx
+++ b/src/pages/ChatHistoryPage.tsx
@@ -2,6 +2,7 @@ import { useEffect, useState } from 'react'
 import { useParams, useLocation } from 'react-router-dom'
 import { ChatRecordItem } from '../types/models'
 import TitleBar from '../components/TitleBar'
+import { ErrorBoundary } from '../components/ErrorBoundary'
 import './ChatHistoryPage.scss'
 
 export default function ChatHistoryPage() {
@@ -166,7 +167,9 @@ export default function ChatHistoryPage() {
           <div className="status-msg empty">暂无可显示的聊天记录</div>
         ) : (
           recordList.map((item, i) => (
-            <HistoryItem key={i} item={item} />
+            <ErrorBoundary key={i} fallback={<div className="history-item error-item">消息解析失败</div>}>
+              <HistoryItem item={item} />
+            </ErrorBoundary>
           ))
         )}
       </div>
@@ -175,6 +178,8 @@ export default function ChatHistoryPage() {
 }
 
 function HistoryItem({ item }: { item: ChatRecordItem }) {
+  const [imageError, setImageError] = useState(false)
+  
   // sourcetime 在合并转发里有两种格式：
   // 1) 时间戳（秒） 2) 已格式化的字符串 "2026-01-21 09:56:46"
   let time = ''
@@ -197,19 +202,16 @@ function HistoryItem({ item }: { item: ChatRecordItem }) {
       if (src) {
         return (
           <div className="media-content">
-            <img 
-              src={src} 
-              alt="图片" 
-              referrerPolicy="no-referrer" 
-              onError={(e) => {
-                const target = e.target as HTMLImageElement
-                target.style.display = 'none'
-                const placeholder = document.createElement('div')
-                placeholder.className = 'media-tip'
-                placeholder.textContent = '图片无法加载'
-                target.parentElement?.appendChild(placeholder)
-              }} 
-            />
+            {imageError ? (
+              <div className="media-tip">图片无法加载</div>
+            ) : (
+              <img 
+                src={src} 
+                alt="图片" 
+                referrerPolicy="no-referrer" 
+                onError={() => setImageError(true)} 
+              />
+            )}
           </div>
         )
       }
diff --git a/src/pages/ChatPage.tsx b/src/pages/ChatPage.tsx
index a663b67..357e1df 100644
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
@@ -14,6 +14,12 @@ import JumpToDatePopover from '../components/JumpToDatePopover'
 import { ContactSnsTimelineDialog } from '../components/Sns/ContactSnsTimelineDialog'
 import { type ContactSnsTimelineTarget, isSingleContactSession } from '../components/Sns/contactSnsTimeline'
 import * as configService from '../services/config'
+import {
+  finishBackgroundTask,
+  isBackgroundTaskCancelRequested,
+  registerBackgroundTask,
+  updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import {
   emitOpenSingleExport,
   onExportSessionStatus,
@@ -1067,6 +1073,13 @@ function ChatPage(props: ChatPageProps) {
   const loadSessionDetail = useCallback(async (sessionId: string) => {
     const normalizedSessionId = String(sessionId || '').trim()
     if (!normalizedSessionId) return
+    const taskId = registerBackgroundTask({
+      sourcePage: 'chat',
+      title: '聊天页会话详情统计',
+      detail: `准备读取 ${sessionMapRef.current.get(normalizedSessionId)?.displayName || normalizedSessionId} 的详情`,
+      progressText: '基础信息',
+      cancelable: true
+    })
 
     const requestSeq = ++detailRequestSeqRef.current
     const mappedSession = sessionMapRef.current.get(normalizedSessionId) || sessionsRef.current.find((s) => s.username === normalizedSessionId)
@@ -1130,8 +1143,23 @@ function ChatPage(props: ChatPageProps) {
     }
 
     try {
+      updateBackgroundTask(taskId, {
+        detail: '正在读取会话基础详情',
+        progressText: '基础信息'
+      })
       const result = await window.electronAPI.chat.getSessionDetailFast(normalizedSessionId)
-      if (requestSeq !== detailRequestSeqRef.current) return
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，当前基础查询结束后未继续补充统计'
+        })
+        return
+      }
+      if (requestSeq !== detailRequestSeqRef.current) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '会话已切换，旧详情任务已停止'
+        })
+        return
+      }
       if (result.success && result.detail) {
         setSessionDetail((prev) => ({
           wxid: normalizedSessionId,
@@ -1170,6 +1198,10 @@ function ChatPage(props: ChatPageProps) {
     }
 
     try {
+      updateBackgroundTask(taskId, {
+        detail: '正在读取补充信息与导出统计',
+        progressText: '补充统计'
+      })
       const [extraResultSettled, statsResultSettled] = await Promise.allSettled([
         window.electronAPI.chat.getSessionDetailExtra(normalizedSessionId),
         window.electronAPI.chat.getExportSessionStats(
@@ -1178,7 +1210,18 @@ function ChatPage(props: ChatPageProps) {
         )
       ])
 
-      if (requestSeq !== detailRequestSeqRef.current) return
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，补充统计结果未继续写入'
+        })
+        return
+      }
+      if (requestSeq !== detailRequestSeqRef.current) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '会话已切换，旧补充统计任务已停止'
+        })
+        return
+      }
 
       if (extraResultSettled.status === 'fulfilled' && extraResultSettled.value.success) {
         const detail = extraResultSettled.value.detail
@@ -1214,8 +1257,15 @@ function ChatPage(props: ChatPageProps) {
           })
         }
       }
+      finishBackgroundTask(taskId, 'completed', {
+        detail: '聊天页会话详情统计完成',
+        progressText: '已完成'
+      })
     } catch (e) {
       console.error('加载会话详情补充统计失败:', e)
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(e)
+      })
     } finally {
       if (requestSeq === detailRequestSeqRef.current) {
         setIsLoadingDetailExtra(false)
@@ -1228,13 +1278,31 @@ function ChatPage(props: ChatPageProps) {
     if (!normalizedSessionId || isLoadingRelationStats) return
 
     const requestSeq = detailRequestSeqRef.current
+    const taskId = registerBackgroundTask({
+      sourcePage: 'chat',
+      title: '聊天页关系统计补算',
+      detail: `正在补算 ${normalizedSessionId} 的共同好友与关联数据`,
+      progressText: '关系统计',
+      cancelable: true
+    })
     setIsLoadingRelationStats(true)
     try {
       const relationResult = await window.electronAPI.chat.getExportSessionStats(
         [normalizedSessionId],
         { includeRelations: true, forceRefresh: true, preferAccurateSpecialTypes: true }
       )
-      if (requestSeq !== detailRequestSeqRef.current) return
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，当前关系统计查询结束后未继续刷新'
+        })
+        return
+      }
+      if (requestSeq !== detailRequestSeqRef.current) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '会话已切换，旧关系统计任务已停止'
+        })
+        return
+      }
 
       const metric = relationResult.success && relationResult.data
         ? relationResult.data[normalizedSessionId] as SessionExportMetric | undefined
@@ -1254,11 +1322,26 @@ function ChatPage(props: ChatPageProps) {
         setIsRefreshingDetailStats(true)
         void (async () => {
           try {
+            updateBackgroundTask(taskId, {
+              detail: '正在刷新关系统计结果',
+              progressText: '关系统计刷新'
+            })
             const freshResult = await window.electronAPI.chat.getExportSessionStats(
               [normalizedSessionId],
               { includeRelations: true, forceRefresh: true, preferAccurateSpecialTypes: true }
             )
-            if (requestSeq !== detailRequestSeqRef.current) return
+            if (isBackgroundTaskCancelRequested(taskId)) {
+              finishBackgroundTask(taskId, 'canceled', {
+                detail: '已停止后续加载，刷新结果未继续写入'
+              })
+              return
+            }
+            if (requestSeq !== detailRequestSeqRef.current) {
+              finishBackgroundTask(taskId, 'canceled', {
+                detail: '会话已切换，旧关系统计刷新任务已停止'
+              })
+              return
+            }
             if (freshResult.success && freshResult.data) {
               const freshMetric = freshResult.data[normalizedSessionId] as SessionExportMetric | undefined
               const freshMeta = freshResult.cache?.[normalizedSessionId] as SessionExportCacheMeta | undefined
@@ -1266,17 +1349,32 @@ function ChatPage(props: ChatPageProps) {
                 applySessionDetailStats(normalizedSessionId, freshMetric, freshMeta, true)
               }
             }
+            finishBackgroundTask(taskId, 'completed', {
+              detail: '聊天页关系统计补算完成',
+              progressText: '已完成'
+            })
           } catch (error) {
             console.error('刷新会话关系统计失败:', error)
+            finishBackgroundTask(taskId, 'failed', {
+              detail: String(error)
+            })
           } finally {
             if (requestSeq === detailRequestSeqRef.current) {
               setIsRefreshingDetailStats(false)
             }
           }
         })()
+      } else {
+        finishBackgroundTask(taskId, 'completed', {
+          detail: '聊天页关系统计补算完成',
+          progressText: '已完成'
+        })
       }
     } catch (error) {
       console.error('加载会话关系统计失败:', error)
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(error)
+      })
     } finally {
       if (requestSeq === detailRequestSeqRef.current) {
         setIsLoadingRelationStats(false)
@@ -3225,7 +3323,7 @@ function ChatPage(props: ChatPageProps) {
 
   const handleGroupAnalytics = useCallback(() => {
     if (!currentSessionId || !isGroupChatSession(currentSessionId)) return
-    navigate('/group-analytics', {
+    navigate('/analytics/group', {
       state: {
         preselectGroupIds: [currentSessionId]
       }
diff --git a/src/pages/ExportPage.scss b/src/pages/ExportPage.scss
index f0ca4c9..ab340f4 100644
--- a/src/pages/ExportPage.scss
+++ b/src/pages/ExportPage.scss
@@ -254,6 +254,168 @@
   }
 }
 
+.session-load-detail-summary {
+  padding: 12px 12px 0;
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.session-load-detail-summary-text {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+  font-size: 12px;
+  color: var(--text-secondary);
+
+  strong {
+    font-size: 18px;
+    color: var(--text-primary);
+  }
+
+  em {
+    font-style: normal;
+    color: var(--text-tertiary);
+  }
+}
+
+.session-load-detail-note {
+  margin: 8px 12px 0;
+  font-size: 12px;
+  line-height: 1.6;
+  color: var(--text-tertiary);
+}
+
+.session-load-detail-stop-btn,
+.session-load-detail-task-stop-btn {
+  border: 1px solid color-mix(in srgb, var(--danger, #ef4444) 45%, var(--border-color));
+  border-radius: 8px;
+  background: color-mix(in srgb, var(--danger, #ef4444) 8%, var(--bg-secondary));
+  color: color-mix(in srgb, var(--danger, #ef4444) 85%, var(--text-primary));
+  cursor: pointer;
+  white-space: nowrap;
+
+  &:disabled {
+    opacity: 0.55;
+    cursor: not-allowed;
+  }
+}
+
+.session-load-detail-stop-btn {
+  padding: 8px 12px;
+  font-size: 12px;
+}
+
+.session-load-detail-task-list {
+  padding: 12px;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.session-load-detail-task-item {
+  border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
+  border-radius: 10px;
+  background: color-mix(in srgb, var(--bg-primary) 86%, var(--bg-secondary));
+  padding: 10px 12px;
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+
+  &.status-cancel_requested {
+    border-color: color-mix(in srgb, var(--warning, #f59e0b) 36%, var(--border-color));
+  }
+
+  &.status-failed {
+    border-color: color-mix(in srgb, var(--danger, #ef4444) 36%, var(--border-color));
+  }
+}
+
+.session-load-detail-task-main {
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+
+  p {
+    margin: 0;
+    font-size: 12px;
+    line-height: 1.55;
+    color: var(--text-secondary);
+  }
+}
+
+.session-load-detail-task-title-row {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 8px;
+  font-size: 12px;
+  color: var(--text-secondary);
+
+  strong {
+    font-size: 13px;
+    color: var(--text-primary);
+  }
+}
+
+.session-load-detail-task-source {
+  padding: 2px 8px;
+  border-radius: 999px;
+  background: var(--bg-secondary);
+  color: var(--text-secondary);
+}
+
+.session-load-detail-task-status {
+  padding: 2px 8px;
+  border-radius: 999px;
+  background: color-mix(in srgb, var(--bg-secondary) 80%, transparent);
+  color: var(--text-secondary);
+
+  &.status-running {
+    color: var(--primary);
+    background: rgba(var(--primary-rgb), 0.1);
+  }
+
+  &.status-cancel_requested {
+    color: #b45309;
+    background: rgba(245, 158, 11, 0.14);
+  }
+
+  &.status-completed {
+    color: #166534;
+    background: rgba(34, 197, 94, 0.14);
+  }
+
+  &.status-failed {
+    color: #b91c1c;
+    background: rgba(239, 68, 68, 0.14);
+  }
+}
+
+.session-load-detail-task-meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12px;
+  font-size: 11px;
+  color: var(--text-tertiary);
+}
+
+.session-load-detail-task-stop-btn {
+  padding: 7px 10px;
+  font-size: 12px;
+  flex-shrink: 0;
+}
+
+.session-load-detail-empty {
+  padding: 12px;
+  font-size: 12px;
+  color: var(--text-tertiary);
+}
+
 .session-load-detail-table {
   display: flex;
   flex-direction: column;
@@ -744,6 +906,7 @@
     width: 100%;
     border: none;
     background: transparent;
+    color: var(--text-primary);
     text-align: left;
     padding: 8px 10px;
     border-radius: 8px;
@@ -765,6 +928,7 @@
   .layout-option-label {
     font-size: 13px;
     font-weight: 600;
+    color: inherit;
   }
 
   .layout-option-desc {
@@ -1399,15 +1563,10 @@
 }
 
 .session-table-section {
-  border: 1px solid var(--border-color);
-  border-radius: 12px;
-  background: var(--card-bg);
-  padding: 12px;
   flex: 0 0 auto;
   min-height: 420px;
   display: flex;
   flex-direction: column;
-  gap: 10px;
   overflow: visible;
 }
 
@@ -1458,20 +1617,31 @@
 .table-tabs {
   display: flex;
   gap: 8px;
-  flex-wrap: wrap;
+  flex-wrap: nowrap;
+  align-items: center;
 
   .tab-btn {
+    flex: 0 0 auto;
+    width: auto;
+    max-width: max-content;
     border: 1px solid var(--border-color);
     background: var(--bg-secondary);
     color: var(--text-secondary);
-    padding: 7px 12px;
+    padding: 7px 6px;
     border-radius: 999px;
     cursor: pointer;
     font-size: 13px;
     white-space: nowrap;
     display: inline-flex;
     align-items: center;
-    gap: 4px;
+    justify-content: center;
+
+    .tab-btn-content {
+      display: inline-flex;
+      align-items: center;
+      gap: 4px;
+      line-height: 1;
+    }
 
     &.active {
       border-color: var(--primary);
@@ -1547,14 +1717,21 @@
 }
 
 .table-wrap {
+  --contacts-native-scrollbar-compensation: 18px;
   --contacts-row-height: 76px;
   --contacts-default-visible-rows: 10;
   --contacts-default-list-height: calc(var(--contacts-row-height) * var(--contacts-default-visible-rows));
   --contacts-select-col-width: 34px;
+  --contacts-avatar-col-width: 44px;
   --contacts-inline-padding: 12px;
+  --contacts-column-gap: 12px;
+  --contacts-name-text-width: 10em;
+  --contacts-main-col-width: calc(var(--contacts-avatar-col-width) + var(--contacts-column-gap) + var(--contacts-name-text-width));
+  --contacts-left-sticky-width: calc(var(--contacts-select-col-width) + var(--contacts-main-col-width) + var(--contacts-column-gap));
   --contacts-message-col-width: 120px;
   --contacts-media-col-width: 72px;
   --contacts-action-col-width: 140px;
+  --contacts-table-min-width: 1200px;
   overflow: hidden;
   border: 1px solid var(--border-color);
   border-radius: 10px;
@@ -1563,24 +1740,51 @@
   flex: 1;
   display: flex;
   flex-direction: column;
+  background: var(--bg-secondary);
 }
 
 .table-wrap {
+  .table-scroll-shell {
+    overflow: hidden;
+  }
+
+  .table-scroll-viewport {
+    min-height: 0;
+    overflow-x: auto;
+    overflow-y: visible;
+    scrollbar-width: none;
+    -ms-overflow-style: none;
+    background: var(--bg-secondary);
+    padding-bottom: var(--contacts-native-scrollbar-compensation);
+    margin-bottom: calc(-1 * var(--contacts-native-scrollbar-compensation));
+
+    &::-webkit-scrollbar {
+      display: none;
+    }
+  }
+
+  .table-scroll-content {
+    min-width: max(100%, var(--contacts-table-min-width));
+  }
+
   .session-table-sticky {
     position: sticky;
     top: 0;
     z-index: 20;
-    background: var(--card-bg);
+    background: var(--bg-secondary);
   }
 
   .loading-state,
   .empty-state {
+    width: 100%;
+    min-width: max(100%, var(--contacts-table-min-width));
     flex: 1;
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     gap: 12px;
+    background: var(--bg-secondary);
     color: var(--text-tertiary);
     font-size: 14px;
 
@@ -1590,14 +1794,17 @@
   }
 
   .load-issue-state {
+    width: 100%;
+    min-width: max(100%, var(--contacts-table-min-width));
     flex: 1;
     padding: 14px;
     overflow-y: auto;
+    background: var(--bg-secondary);
   }
 
   .issue-card {
     border: 1px solid color-mix(in srgb, var(--danger, #ef4444) 45%, var(--border-color));
-    background: color-mix(in srgb, var(--danger, #ef4444) 8%, var(--card-bg));
+    background: color-mix(in srgb, var(--danger, #ef4444) 8%, var(--bg-secondary));
     border-radius: 12px;
     padding: 14px;
     color: var(--text-primary);
@@ -1671,7 +1878,7 @@
   .issue-diagnostics {
     margin-top: 12px;
     border-radius: 8px;
-    background: var(--bg-primary);
+    background: color-mix(in srgb, var(--bg-secondary) 92%, var(--bg-primary));
     border: 1px dashed var(--border-color);
     padding: 10px;
     font-size: 12px;
@@ -1682,17 +1889,37 @@
   }
 
   .contacts-list-header {
+    --contacts-header-bg: color-mix(in srgb, var(--bg-secondary) 90%, var(--bg-primary));
     display: flex;
     align-items: center;
-    gap: 12px;
+    gap: var(--contacts-column-gap);
     padding: 10px var(--contacts-inline-padding) 8px;
+    min-width: max(100%, var(--contacts-table-min-width));
     border-bottom: 1px solid color-mix(in srgb, var(--border-color) 85%, transparent);
-    background: color-mix(in srgb, var(--bg-primary) 78%, var(--bg-secondary));
+    background: var(--contacts-header-bg);
     font-size: 12px;
     color: var(--text-tertiary);
     font-weight: 600;
     letter-spacing: 0.01em;
     flex-shrink: 0;
+
+    &.is-draggable {
+      cursor: grab;
+    }
+
+    &.is-dragging {
+      cursor: grabbing;
+      user-select: none;
+    }
+  }
+
+  .contacts-list-header-left {
+    display: flex;
+    align-items: center;
+    gap: var(--contacts-column-gap);
+    width: var(--contacts-left-sticky-width);
+    min-width: var(--contacts-left-sticky-width);
+    max-width: var(--contacts-left-sticky-width);
   }
 
   .contacts-list-header-select {
@@ -1705,8 +1932,10 @@
   }
 
   .contacts-list-header-main {
-    flex: 1;
-    min-width: 0;
+    flex: 0 0 var(--contacts-main-col-width);
+    width: var(--contacts-main-col-width);
+    min-width: var(--contacts-main-col-width);
+    max-width: var(--contacts-main-col-width);
     display: flex;
     align-items: center;
     gap: 8px;
@@ -1721,21 +1950,30 @@
 
   .contacts-list-header-count {
     width: var(--contacts-message-col-width);
+    min-width: var(--contacts-message-col-width);
+    display: flex;
+    align-items: center;
+    justify-content: center;
     text-align: center;
     flex-shrink: 0;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
+    box-sizing: border-box;
   }
 
   .contacts-list-header-media {
     width: var(--contacts-media-col-width);
     min-width: var(--contacts-media-col-width);
+    display: flex;
+    align-items: center;
+    justify-content: center;
     text-align: center;
     flex-shrink: 0;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
+    box-sizing: border-box;
   }
 
   .contacts-list-header-actions {
@@ -1749,8 +1987,8 @@
     flex-shrink: 0;
     position: sticky;
     right: 0;
-    z-index: 8;
-    background: var(--bg-primary);
+    z-index: 13;
+    background: var(--contacts-header-bg);
     white-space: nowrap;
 
     &::before {
@@ -1761,30 +1999,70 @@
       left: -8px;
       width: 8px;
       pointer-events: none;
-      background: linear-gradient(to right, transparent, var(--bg-primary));
+      background: linear-gradient(to right, transparent, var(--contacts-header-bg));
     }
   }
 
   .contacts-list {
+    width: 100%;
+    min-width: max(100%, var(--contacts-table-min-width));
     flex: 1;
     min-height: var(--contacts-default-list-height);
     height: var(--contacts-default-list-height);
-    overflow: hidden;
+    position: relative;
+    overflow-x: clip;
+    overflow-y: auto;
+    overscroll-behavior: contain;
     padding: 0 0 12px;
-  }
-
-  .contacts-virtuoso {
-    height: 100%;
+    background: var(--bg-secondary);
 
     &::-webkit-scrollbar {
       width: 6px;
     }
 
-    &::-webkit-scrollbar-thumb {
-      background: var(--text-tertiary);
-      border-radius: 3px;
-      opacity: 0.3;
+    &::-webkit-scrollbar-track {
+      background: transparent;
     }
+
+    &::-webkit-scrollbar-thumb {
+      background: color-mix(in srgb, var(--text-tertiary) 72%, transparent);
+      border-radius: 999px;
+    }
+  }
+
+  .contacts-virtuoso {
+    width: 100%;
+  }
+
+  .table-bottom-scrollbar {
+    flex: 0 0 auto;
+    overflow-x: auto;
+    overflow-y: hidden;
+    background: color-mix(in srgb, var(--bg-secondary) 90%, var(--bg-primary));
+    scrollbar-width: thin;
+    scrollbar-color: color-mix(in srgb, var(--text-tertiary) 70%, transparent) transparent;
+
+    &::-webkit-scrollbar {
+      height: 10px;
+    }
+
+    &::-webkit-scrollbar-track {
+      background: transparent;
+    }
+
+    &::-webkit-scrollbar-thumb {
+      border-radius: 999px;
+      background: color-mix(in srgb, var(--text-tertiary) 70%, transparent);
+    }
+  }
+
+  .table-bottom-scrollbar-inner {
+    height: 1px;
+  }
+
+  .table-bottom-scrollbar {
+    height: 16px;
+    border-top: 1px solid color-mix(in srgb, var(--border-color) 80%, transparent);
   }
 
   .selection-clear-btn {
@@ -1848,30 +2126,50 @@
     padding-bottom: 4px;
 
     &.selected .contact-item {
-      background: rgba(var(--primary-rgb), 0.08);
+      background: var(--contacts-row-bg);
+      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 52%, transparent);
     }
 
-    &.selected .row-action-cell {
-      background: rgba(var(--primary-rgb), 0.08);
+    &.selected .contact-item:hover {
+      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 60%, transparent);
     }
   }
 
   .contact-item {
+    --contacts-row-bg: var(--bg-secondary);
     display: flex;
     align-items: center;
-    gap: 12px;
-    padding: 12px var(--contacts-inline-padding);
+    gap: var(--contacts-column-gap);
+    padding: 12px 6px 12px var(--contacts-inline-padding);
+    min-width: max(100%, var(--contacts-table-min-width));
     height: 72px;
     box-sizing: border-box;
     border-radius: 10px;
     transition: all 0.2s;
     cursor: default;
+    background: var(--contacts-row-bg);
+    box-shadow: inset 0 0 0 1px transparent;
 
     &:hover {
-      background: var(--bg-hover);
+      background: var(--contacts-row-bg);
+      box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text-tertiary) 24%, transparent);
     }
   }
 
+  .row-left-sticky {
+    position: sticky;
+    left: 0;
+    z-index: 11;
+    display: flex;
+    align-items: center;
+    align-self: stretch;
+    gap: var(--contacts-column-gap);
+    width: var(--contacts-left-sticky-width);
+    min-width: var(--contacts-left-sticky-width);
+    max-width: var(--contacts-left-sticky-width);
+    background: var(--contacts-row-bg);
+  }
+
   .row-select-cell {
     width: var(--contacts-select-col-width);
     min-width: var(--contacts-select-col-width);
@@ -1905,8 +2203,10 @@
   }
 
   .contact-info {
-    flex: 1;
-    min-width: 0;
+    flex: 0 0 var(--contacts-name-text-width);
+    width: var(--contacts-name-text-width);
+    min-width: var(--contacts-name-text-width);
+    max-width: var(--contacts-name-text-width);
   }
 
   .contact-name {
@@ -1949,6 +2249,7 @@
     gap: 4px;
     flex-shrink: 0;
     text-align: center;
+    box-sizing: border-box;
   }
 
   .row-media-metric {
@@ -1959,6 +2260,7 @@
     align-items: center;
     flex-shrink: 0;
     text-align: center;
+    box-sizing: border-box;
   }
 
   .row-media-metric-value {
@@ -1982,6 +2284,7 @@
     background: transparent;
     margin: 0;
     padding: 0;
+    width: 100%;
     min-height: 14px;
     display: inline-flex;
     align-items: center;
@@ -2104,11 +2407,12 @@
   min-width: 1300px;
   border-collapse: separate;
   border-spacing: 0;
+  background: var(--bg-secondary);
 
   thead th {
     position: sticky;
     top: 0;
-    background: color-mix(in srgb, var(--bg-primary) 75%, var(--bg-secondary));
+    background: color-mix(in srgb, var(--bg-secondary) 90%, var(--bg-primary));
     z-index: 4;
     font-size: 12px;
     text-align: left;
@@ -2231,24 +2535,16 @@
   display: flex;
   flex-direction: column;
   align-items: flex-end;
+  justify-content: center;
+  align-self: stretch;
   gap: 4px;
   width: var(--contacts-action-col-width);
+  min-width: var(--contacts-action-col-width);
   flex-shrink: 0;
   position: sticky;
   right: 0;
-  z-index: 6;
-  background: var(--bg-primary);
-
-  &::before {
-    content: '';
-    position: absolute;
-    top: -12px;
-    bottom: -12px;
-    left: -8px;
-    width: 8px;
-    pointer-events: none;
-    background: linear-gradient(to right, transparent, var(--bg-primary));
-  }
+  z-index: 10;
+  background: var(--contacts-row-bg);
 
   .row-action-main {
     display: inline-flex;
@@ -3929,6 +4225,8 @@
 
   .table-wrap {
     --contacts-inline-padding: 10px;
+    --contacts-name-text-width: 10em;
+    --contacts-main-col-width: calc(44px + 10px + var(--contacts-name-text-width));
     --contacts-message-col-width: 104px;
     --contacts-media-col-width: 62px;
     --contacts-action-col-width: 140px;
diff --git a/src/pages/ExportPage.tsx b/src/pages/ExportPage.tsx
index 085af11..cd5183f 100644
--- a/src/pages/ExportPage.tsx
+++ b/src/pages/ExportPage.tsx
@@ -1,4 +1,4 @@
-import { memo, useCallback, useEffect, useMemo, useRef, useState, type WheelEvent } from 'react'
+import { memo, useCallback, useEffect, useMemo, useRef, useState, type CSSProperties, type PointerEvent, type UIEvent, type WheelEvent } from 'react'
 import { useLocation } from 'react-router-dom'
 import { Virtuoso, type VirtuosoHandle } from 'react-virtuoso'
 import { createPortal } from 'react-dom'
@@ -30,6 +30,7 @@ import {
 } from 'lucide-react'
 import type { ChatSession as AppChatSession, ContactInfo } from '../types/models'
 import type { ExportOptions as ElectronExportOptions, ExportProgress } from '../types/electron'
+import type { BackgroundTaskRecord } from '../types/backgroundTask'
 import * as configService from '../services/config'
 import {
   emitExportSessionStatus,
@@ -37,6 +38,11 @@ import {
   onExportSessionStatusRequest,
   onOpenSingleExport
 } from '../services/exportBridge'
+import {
+  requestCancelBackgroundTask,
+  requestCancelBackgroundTasks,
+  subscribeBackgroundTasks
+} from '../services/backgroundTaskMonitor'
 import { useContactTypeCountsStore } from '../stores/contactTypeCountsStore'
 import { SnsPostItem } from '../components/Sns/SnsPostItem'
 import { ContactSnsTimelineDialog } from '../components/Sns/ContactSnsTimelineDialog'
@@ -176,6 +182,24 @@ const contentTypeLabels: Record<ContentType, string> = {
   emoji: '表情包'
 }
 
+const backgroundTaskSourceLabels: Record<string, string> = {
+  export: '导出页',
+  chat: '聊天页',
+  analytics: '分析页',
+  sns: '朋友圈页',
+  groupAnalytics: '群分析页',
+  annualReport: '年度报告',
+  other: '其他页面'
+}
+
+const backgroundTaskStatusLabels: Record<BackgroundTaskRecord['status'], string> = {
+  running: '运行中',
+  cancel_requested: '停止中',
+  completed: '已完成',
+  failed: '失败',
+  canceled: '已停止'
+}
+
 const conversationTabLabels: Record<ConversationTab, string> = {
   private: '私聊',
   group: '群聊',
@@ -1422,6 +1446,7 @@ function ExportPage() {
   const [sessionMutualFriendsMetrics, setSessionMutualFriendsMetrics] = useState<Record<string, SessionMutualFriendsMetric>>({})
   const [sessionMutualFriendsDialogTarget, setSessionMutualFriendsDialogTarget] = useState<SessionSnsTimelineTarget | null>(null)
   const [sessionMutualFriendsSearch, setSessionMutualFriendsSearch] = useState('')
+  const [backgroundTasks, setBackgroundTasks] = useState<BackgroundTaskRecord[]>([])
 
   const [exportFolder, setExportFolder] = useState('')
   const [writeLayout, setWriteLayout] = useState<configService.ExportWriteLayout>('B')
@@ -1487,6 +1512,12 @@ function ExportPage() {
   const [hasSeededSnsStats, setHasSeededSnsStats] = useState(false)
   const [nowTick, setNowTick] = useState(Date.now())
   const [isContactsListAtTop, setIsContactsListAtTop] = useState(true)
+  const [isContactsHeaderDragging, setIsContactsHeaderDragging] = useState(false)
+  const [contactsListScrollParent, setContactsListScrollParent] = useState<HTMLDivElement | null>(null)
+  const [contactsHorizontalScrollMetrics, setContactsHorizontalScrollMetrics] = useState({
+    viewportWidth: 0,
+    contentWidth: 0
+  })
   const tabCounts = useContactTypeCountsStore(state => state.tabCounts)
   const isSharedTabCountsLoading = useContactTypeCountsStore(state => state.isLoading)
   const isSharedTabCountsReady = useContactTypeCountsStore(state => state.isReady)
@@ -1508,6 +1539,16 @@ function ExportPage() {
   const contactsAvatarCacheRef = useRef<Record<string, configService.ContactsAvatarCacheEntry>>({})
   const contactsVirtuosoRef = useRef<VirtuosoHandle | null>(null)
   const sessionTableSectionRef = useRef<HTMLDivElement | null>(null)
+  const contactsHorizontalViewportRef = useRef<HTMLDivElement | null>(null)
+  const contactsHorizontalContentRef = useRef<HTMLDivElement | null>(null)
+  const contactsBottomScrollbarRef = useRef<HTMLDivElement | null>(null)
+  const contactsScrollSyncSourceRef = useRef<'viewport' | 'bottom' | null>(null)
+  const contactsHeaderDragStateRef = useRef({
+    pointerId: -1,
+    startClientX: 0,
+    startScrollLeft: 0,
+    didDrag: false
+  })
   const sessionFormatDropdownRef = useRef<HTMLDivElement | null>(null)
   const detailRequestSeqRef = useRef(0)
   const sessionsRef = useRef<SessionRow[]>([])
@@ -1560,6 +1601,10 @@ function ExportPage() {
     endIndex: -1
   })
 
+  const handleContactsListScrollParentRef = useCallback((node: HTMLDivElement | null) => {
+    setContactsListScrollParent(prev => (prev === node ? prev : node))
+  }, [])
+
   const ensureExportCacheScope = useCallback(async (): Promise<string> => {
     if (exportCacheScopeReadyRef.current) {
       return exportCacheScopeRef.current
@@ -1903,6 +1948,10 @@ function ExportPage() {
     return () => window.clearInterval(timer)
   }, [contactsList.length, isContactsListLoading, contactsLoadIssue])
 
+  useEffect(() => {
+    return subscribeBackgroundTasks(setBackgroundTasks)
+  }, [])
+
   useEffect(() => {
     tasksRef.current = tasks
   }, [tasks])
@@ -3843,11 +3892,9 @@ function ExportPage() {
 
     if (scope === 'content' && contentType) {
       if (contentType === 'text') {
-        const fastTextFormat: TextExportFormat = options.format === 'excel' ? 'arkme-json' : options.format
         const textExportConcurrency = Math.min(2, Math.max(1, base.exportConcurrency ?? options.exportConcurrency))
         return {
           ...base,
-          format: fastTextFormat,
           contentType,
           exportConcurrency: textExportConcurrency,
           exportAvatars: base.exportAvatars,
@@ -5491,6 +5538,16 @@ function ExportPage() {
       alert('复制失败，请手动复制诊断信息')
     }
   }, [contactsDiagnosticsText])
+  const handleCancelBackgroundTask = useCallback((taskId: string) => {
+    requestCancelBackgroundTask(taskId)
+  }, [])
+  const handleCancelAllNonExportTasks = useCallback(() => {
+    requestCancelBackgroundTasks(task => (
+      task.sourcePage !== 'export' &&
+      task.cancelable &&
+      (task.status === 'running' || task.status === 'cancel_requested')
+    ))
+  }, [])
 
   const sessionContactsUpdatedAtLabel = useMemo(() => {
     if (!sessionContactsUpdatedAt) return ''
@@ -5563,6 +5620,36 @@ function ExportPage() {
   const taskQueuedCount = tasks.filter(task => task.status === 'queued').length
   const taskCenterAlertCount = taskRunningCount + taskQueuedCount
   const hasFilteredContacts = filteredContacts.length > 0
+  const contactsTableMinWidth = useMemo(() => {
+    const baseWidth = 24 + 34 + 44 + 280 + 120 + (4 * 72) + 140 + (8 * 12)
+    const snsWidth = shouldShowSnsColumn ? 72 + 12 : 0
+    const mutualFriendsWidth = shouldShowMutualFriendsColumn ? 72 + 12 : 0
+    return baseWidth + snsWidth + mutualFriendsWidth
+  }, [shouldShowMutualFriendsColumn, shouldShowSnsColumn])
+  const contactsTableStyle = useMemo(() => (
+    {
+      ['--contacts-table-min-width' as const]: `${contactsTableMinWidth}px`
+    } as CSSProperties
+  ), [contactsTableMinWidth])
+  const hasContactsHorizontalOverflow = contactsHorizontalScrollMetrics.contentWidth - contactsHorizontalScrollMetrics.viewportWidth > 1
+  const contactsBottomScrollbarInnerStyle = useMemo<CSSProperties>(() => ({
+    width: `${Math.max(contactsHorizontalScrollMetrics.contentWidth, contactsHorizontalScrollMetrics.viewportWidth)}px`
+  }), [contactsHorizontalScrollMetrics.contentWidth, contactsHorizontalScrollMetrics.viewportWidth])
+  const nonExportBackgroundTasks = useMemo(() => (
+    backgroundTasks.filter(task => task.sourcePage !== 'export')
+  ), [backgroundTasks])
+  const runningNonExportTaskCount = useMemo(() => (
+    nonExportBackgroundTasks.filter(task => task.status === 'running' || task.status === 'cancel_requested').length
+  ), [nonExportBackgroundTasks])
+  const cancelableNonExportTaskCount = useMemo(() => (
+    nonExportBackgroundTasks.filter(task => (
+      task.cancelable &&
+      (task.status === 'running' || task.status === 'cancel_requested')
+    )).length
+  ), [nonExportBackgroundTasks])
+  const nonExportBackgroundTasksUpdatedAt = useMemo(() => (
+    nonExportBackgroundTasks.reduce((latest, task) => Math.max(latest, task.updatedAt || 0), 0)
+  ), [nonExportBackgroundTasks])
   const sessionLoadDetailUpdatedAt = useMemo(() => {
     let latest = 0
     for (const row of sessionLoadDetailRows) {
@@ -5588,6 +5675,136 @@ function ExportPage() {
       row.mutualFriends.statusLabel.startsWith('加载中')
     ))
   ), [sessionLoadDetailRows])
+  const syncContactsHorizontalScroll = useCallback((source: 'viewport' | 'bottom', scrollLeft: number) => {
+    if (contactsScrollSyncSourceRef.current && contactsScrollSyncSourceRef.current !== source) return
+
+    contactsScrollSyncSourceRef.current = source
+    const viewport = contactsHorizontalViewportRef.current
+    const bottomScrollbar = contactsBottomScrollbarRef.current
+
+    if (source !== 'viewport' && viewport && Math.abs(viewport.scrollLeft - scrollLeft) > 1) {
+      viewport.scrollLeft = scrollLeft
+    }
+
+    if (source !== 'bottom' && bottomScrollbar && Math.abs(bottomScrollbar.scrollLeft - scrollLeft) > 1) {
+      bottomScrollbar.scrollLeft = scrollLeft
+    }
+
+    window.requestAnimationFrame(() => {
+      if (contactsScrollSyncSourceRef.current === source) {
+        contactsScrollSyncSourceRef.current = null
+      }
+    })
+  }, [])
+  const handleContactsHorizontalViewportScroll = useCallback((event: UIEvent<HTMLDivElement>) => {
+    syncContactsHorizontalScroll('viewport', event.currentTarget.scrollLeft)
+  }, [syncContactsHorizontalScroll])
+  const handleContactsBottomScrollbarScroll = useCallback((event: UIEvent<HTMLDivElement>) => {
+    syncContactsHorizontalScroll('bottom', event.currentTarget.scrollLeft)
+  }, [syncContactsHorizontalScroll])
+  const resetContactsHeaderDrag = useCallback((currentTarget?: HTMLDivElement | null) => {
+    const dragState = contactsHeaderDragStateRef.current
+    if (currentTarget && dragState.pointerId >= 0 && currentTarget.hasPointerCapture(dragState.pointerId)) {
+      currentTarget.releasePointerCapture(dragState.pointerId)
+    }
+    dragState.pointerId = -1
+    dragState.startClientX = 0
+    dragState.startScrollLeft = 0
+    dragState.didDrag = false
+    setIsContactsHeaderDragging(false)
+  }, [])
+  const handleContactsHeaderPointerDown = useCallback((event: PointerEvent<HTMLDivElement>) => {
+    if (!hasContactsHorizontalOverflow || event.pointerType === 'touch') return
+    if (event.button !== 0) return
+    if (event.target instanceof Element && event.target.closest('button, a, input, textarea, select, label, [role="button"]')) {
+      return
+    }
+
+    contactsHeaderDragStateRef.current = {
+      pointerId: event.pointerId,
+      startClientX: event.clientX,
+      startScrollLeft: contactsHorizontalViewportRef.current?.scrollLeft ?? 0,
+      didDrag: false
+    }
+    event.currentTarget.setPointerCapture(event.pointerId)
+    setIsContactsHeaderDragging(true)
+  }, [hasContactsHorizontalOverflow])
+  const handleContactsHeaderPointerMove = useCallback((event: PointerEvent<HTMLDivElement>) => {
+    const dragState = contactsHeaderDragStateRef.current
+    if (dragState.pointerId !== event.pointerId) return
+
+    const viewport = contactsHorizontalViewportRef.current
+    const content = contactsHorizontalContentRef.current
+    if (!viewport || !content) return
+
+    const deltaX = event.clientX - dragState.startClientX
+    if (!dragState.didDrag && Math.abs(deltaX) < 4) return
+
+    dragState.didDrag = true
+    const maxScrollLeft = Math.max(0, content.scrollWidth - viewport.clientWidth)
+    const nextScrollLeft = Math.max(0, Math.min(dragState.startScrollLeft - deltaX, maxScrollLeft))
+
+    viewport.scrollLeft = nextScrollLeft
+    syncContactsHorizontalScroll('viewport', nextScrollLeft)
+    event.preventDefault()
+  }, [syncContactsHorizontalScroll])
+  const handleContactsHeaderPointerUp = useCallback((event: PointerEvent<HTMLDivElement>) => {
+    if (contactsHeaderDragStateRef.current.pointerId !== event.pointerId) return
+    resetContactsHeaderDrag(event.currentTarget)
+  }, [resetContactsHeaderDrag])
+  const handleContactsHeaderPointerCancel = useCallback((event: PointerEvent<HTMLDivElement>) => {
+    if (contactsHeaderDragStateRef.current.pointerId !== event.pointerId) return
+    resetContactsHeaderDrag(event.currentTarget)
+  }, [resetContactsHeaderDrag])
+  useEffect(() => {
+    const viewport = contactsHorizontalViewportRef.current
+    const content = contactsHorizontalContentRef.current
+    if (!viewport || !content) return
+
+    const syncMetrics = () => {
+      const viewportWidth = Math.round(viewport.clientWidth)
+      const contentWidth = Math.round(content.scrollWidth)
+
+      setContactsHorizontalScrollMetrics((prev) => (
+        prev.viewportWidth === viewportWidth && prev.contentWidth === contentWidth
+          ? prev
+          : { viewportWidth, contentWidth }
+      ))
+
+      const maxScrollLeft = Math.max(0, contentWidth - viewportWidth)
+      const clampedScrollLeft = Math.min(viewport.scrollLeft, maxScrollLeft)
+
+      if (Math.abs(viewport.scrollLeft - clampedScrollLeft) > 1) {
+        viewport.scrollLeft = clampedScrollLeft
+      }
+
+      const bottomScrollbar = contactsBottomScrollbarRef.current
+      if (bottomScrollbar) {
+        const nextScrollLeft = Math.min(bottomScrollbar.scrollLeft, maxScrollLeft)
+        if (Math.abs(bottomScrollbar.scrollLeft - nextScrollLeft) > 1) {
+          bottomScrollbar.scrollLeft = nextScrollLeft
+        }
+        if (Math.abs(nextScrollLeft - clampedScrollLeft) > 1) {
+          bottomScrollbar.scrollLeft = clampedScrollLeft
+        }
+      }
+    }
+
+    syncMetrics()
+
+    if (typeof ResizeObserver === 'undefined') {
+      window.addEventListener('resize', syncMetrics)
+      return () => window.removeEventListener('resize', syncMetrics)
+    }
+
+    const resizeObserver = new ResizeObserver(syncMetrics)
+    resizeObserver.observe(viewport)
+    resizeObserver.observe(content)
+
+    return () => {
+      resizeObserver.disconnect()
+    }
+  }, [])
   const closeTaskCenter = useCallback(() => {
     setIsTaskCenterOpen(false)
     setExpandedPerfTaskId(null)
@@ -5664,27 +5881,29 @@ function ExportPage() {
     return (
       <div className={`contact-row ${checked ? 'selected' : ''}`}>
         <div className="contact-item">
-          <div className="row-select-cell">
-            <button
-              className={`select-icon-btn ${checked ? 'checked' : ''}`}
-              type="button"
-              disabled={!canExport}
-              onClick={() => toggleSelectSession(contact.username)}
-              title={canExport ? (checked ? '取消选择' : '选择会话') : '该联系人暂无会话记录'}
-            >
-              {checked ? <CheckSquare size={16} /> : <Square size={16} />}
-            </button>
-          </div>
-          <div className="contact-avatar">
-            {contact.avatarUrl ? (
-              <img src={contact.avatarUrl} alt="" loading="lazy" />
-            ) : (
-              <span>{getAvatarLetter(contact.displayName)}</span>
-            )}
-          </div>
-          <div className="contact-info">
-            <div className="contact-name">{contact.displayName}</div>
-            <div className="contact-remark">{contact.alias || contact.username}</div>
+          <div className="row-left-sticky">
+            <div className="row-select-cell">
+              <button
+                className={`select-icon-btn ${checked ? 'checked' : ''}`}
+                type="button"
+                disabled={!canExport}
+                onClick={() => toggleSelectSession(contact.username)}
+                title={canExport ? (checked ? '取消选择' : '选择会话') : '该联系人暂无会话记录'}
+              >
+                {checked ? <CheckSquare size={16} /> : <Square size={16} />}
+              </button>
+            </div>
+            <div className="contact-avatar">
+              {contact.avatarUrl ? (
+                <img src={contact.avatarUrl} alt="" loading="lazy" />
+              ) : (
+                <span>{getAvatarLetter(contact.displayName)}</span>
+              )}
+            </div>
+            <div className="contact-info">
+              <div className="contact-name">{contact.displayName}</div>
+              <div className="contact-remark">{contact.alias || contact.username}</div>
+            </div>
           </div>
           <div className="row-message-count">
             <div className="row-message-stats">
@@ -5796,7 +6015,7 @@ function ExportPage() {
                     })
                   }}
                 >
-                  {!canExport ? '暂无会话' : isRunning ? '导出中...' : isQueued ? '排队中' : '单会话导出'}
+                  {!canExport ? '暂无会话' : isRunning ? '导出中...' : isQueued ? '排队中' : '导出'}
                 </button>
                 {hasRecentExport && <span className="row-export-time">{recentExportTime}</span>}
               </div>
@@ -6115,157 +6334,198 @@ function ExportPage() {
       </div>
       <div className="session-table-section" ref={sessionTableSectionRef}>
         <div className="session-table-layout">
-          <div className="table-wrap">
-            <div className="session-table-sticky">
-              <div className="table-toolbar">
-                <div className="table-tabs" role="tablist" aria-label="会话类型">
-                  <button className={`tab-btn ${activeTab === 'private' ? 'active' : ''}`} onClick={() => setActiveTab('private')}>
-                    私聊 {isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.private}
-                  </button>
-                  <button className={`tab-btn ${activeTab === 'group' ? 'active' : ''}`} onClick={() => setActiveTab('group')}>
-                    群聊 {isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.group}
-                  </button>
-                  <button className={`tab-btn ${activeTab === 'former_friend' ? 'active' : ''}`} onClick={() => setActiveTab('former_friend')}>
-                    曾经的好友 {isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.former_friend}
-                  </button>
-                </div>
-
-                <div className="toolbar-actions">
-                  <div className="search-input-wrap">
-                    <Search size={14} />
-                    <input
-                      value={searchKeyword}
-                      onChange={(event) => setSearchKeyword(event.target.value)}
-                      placeholder={`搜索${activeTabLabel}联系人...`}
-                    />
-                    {searchKeyword && (
-                      <button className="clear-search" onClick={() => setSearchKeyword('')}>
-                        <X size={12} />
-                      </button>
-                    )}
-                  </div>
-                  <button className="secondary-btn" onClick={() => void loadContactsList()} disabled={isContactsListLoading}>
-                    <RefreshCw size={14} className={isContactsListLoading ? 'spin' : ''} />
-                    刷新
-                  </button>
-                </div>
+          <div className="table-wrap" style={contactsTableStyle}>
+            <div className="table-toolbar">
+              <div className="table-tabs" role="tablist" aria-label="会话类型">
+                <button className={`tab-btn ${activeTab === 'private' ? 'active' : ''}`} onClick={() => setActiveTab('private')}>
+                  <span className="tab-btn-content">
+                    <span>私聊</span>
+                    <span>{isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.private}</span>
+                  </span>
+                </button>
+                <button className={`tab-btn ${activeTab === 'group' ? 'active' : ''}`} onClick={() => setActiveTab('group')}>
+                  <span className="tab-btn-content">
+                    <span>群聊</span>
+                    <span>{isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.group}</span>
+                  </span>
+                </button>
+                <button className={`tab-btn ${activeTab === 'former_friend' ? 'active' : ''}`} onClick={() => setActiveTab('former_friend')}>
+                  <span className="tab-btn-content">
+                    <span>曾经的好友</span>
+                    <span>{isTabCountComputing ? <span className="count-loading">计算中<span className="animated-ellipsis" aria-hidden="true">...</span></span> : tabCounts.former_friend}</span>
+                  </span>
+                </button>
               </div>
 
-              {contactsList.length > 0 && isContactsListLoading && (
-                <div className="table-stage-hint">
-                  <Loader2 size={14} className="spin" />
-                  联系人列表同步中…
-                </div>
-              )}
-
-              {hasFilteredContacts && (
-                <div className="contacts-list-header">
-                  <span className="contacts-list-header-select">
-                    <button
-                      className={`select-icon-btn ${isAllVisibleSelected ? 'checked' : ''}`}
-                      type="button"
-                      onClick={toggleSelectAllVisible}
-                      disabled={visibleSelectableCount === 0}
-                      title={isAllVisibleSelected ? '取消全选当前筛选联系人' : '全选当前筛选联系人'}
-                    >
-                      {isAllVisibleSelected ? <CheckSquare size={16} /> : <Square size={16} />}
+              <div className="toolbar-actions">
+                <div className="search-input-wrap">
+                  <Search size={14} />
+                  <input
+                    value={searchKeyword}
+                    onChange={(event) => setSearchKeyword(event.target.value)}
+                    placeholder={`搜索${activeTabLabel}联系人...`}
+                  />
+                  {searchKeyword && (
+                    <button className="clear-search" onClick={() => setSearchKeyword('')}>
+                      <X size={12} />
                     </button>
-                  </span>
-                  <span className="contacts-list-header-main">
-                    <span className="contacts-list-header-main-label">{contactsHeaderMainLabel}</span>
-                  </span>
-                  <span className="contacts-list-header-count">总消息数</span>
-                  <span className="contacts-list-header-media">表情包</span>
-                  <span className="contacts-list-header-media">语音</span>
-                  <span className="contacts-list-header-media">图片</span>
-                  <span className="contacts-list-header-media">视频</span>
-                  {shouldShowSnsColumn && (
-                    <span className="contacts-list-header-media">朋友圈</span>
                   )}
-                  {shouldShowMutualFriendsColumn && (
-                    <span className="contacts-list-header-media">共同好友</span>
-                  )}
-                  <span className="contacts-list-header-actions">
-                    {selectedCount > 0 && (
-                      <>
-                        <button
-                          className="selection-clear-btn"
-                          type="button"
-                          onClick={clearSelection}
-                        >
-                          清空
-                        </button>
-                        <button
-                          className="selection-export-btn"
-                          type="button"
-                          onClick={openBatchExport}
-                        >
-                          <span>批量导出</span>
-                          <span className="selection-export-count">{selectedCount}</span>
-                        </button>
-                      </>
-                    )}
-                  </span>
                 </div>
-              )}
+                <button className="secondary-btn" onClick={() => void loadContactsList()} disabled={isContactsListLoading}>
+                  <RefreshCw size={14} className={isContactsListLoading ? 'spin' : ''} />
+                  刷新
+                </button>
+              </div>
             </div>
 
-            {contactsList.length === 0 && contactsLoadIssue ? (
-              <div className="load-issue-state">
-                <div className="issue-card">
-                  <div className="issue-title">
-                    <AlertTriangle size={18} />
-                    <span>{contactsLoadIssue.title}</span>
+            <div className="table-scroll-shell">
+              <div
+                ref={contactsHorizontalViewportRef}
+                className="table-scroll-viewport"
+                onScroll={handleContactsHorizontalViewportScroll}
+              >
+                <div ref={contactsHorizontalContentRef} className="table-scroll-content">
+                  <div className="session-table-sticky">
+                    {contactsList.length > 0 && isContactsListLoading && (
+                      <div className="table-stage-hint">
+                        <Loader2 size={14} className="spin" />
+                        联系人列表同步中…
+                      </div>
+                    )}
+
+                    {hasFilteredContacts && (
+                      <div
+                        className={`contacts-list-header ${hasContactsHorizontalOverflow ? 'is-draggable' : ''} ${isContactsHeaderDragging ? 'is-dragging' : ''}`}
+                        onPointerDown={handleContactsHeaderPointerDown}
+                        onPointerMove={handleContactsHeaderPointerMove}
+                        onPointerUp={handleContactsHeaderPointerUp}
+                        onPointerCancel={handleContactsHeaderPointerCancel}
+                      >
+                        <span className="contacts-list-header-left">
+                          <span className="contacts-list-header-select">
+                            <button
+                              className={`select-icon-btn ${isAllVisibleSelected ? 'checked' : ''}`}
+                              type="button"
+                              onClick={toggleSelectAllVisible}
+                              disabled={visibleSelectableCount === 0}
+                              title={isAllVisibleSelected ? '取消全选当前筛选联系人' : '全选当前筛选联系人'}
+                            >
+                              {isAllVisibleSelected ? <CheckSquare size={16} /> : <Square size={16} />}
+                            </button>
+                          </span>
+                          <span className="contacts-list-header-main">
+                            <span className="contacts-list-header-main-label">{contactsHeaderMainLabel}</span>
+                          </span>
+                        </span>
+                        <span className="contacts-list-header-count">总消息数</span>
+                        <span className="contacts-list-header-media">表情包</span>
+                        <span className="contacts-list-header-media">语音</span>
+                        <span className="contacts-list-header-media">图片</span>
+                        <span className="contacts-list-header-media">视频</span>
+                        {shouldShowSnsColumn && (
+                          <span className="contacts-list-header-media">朋友圈</span>
+                        )}
+                        {shouldShowMutualFriendsColumn && (
+                          <span className="contacts-list-header-media">共同好友</span>
+                        )}
+                        <span className="contacts-list-header-actions">
+                          {selectedCount > 0 && (
+                            <>
+                              <button
+                                className="selection-clear-btn"
+                                type="button"
+                                onClick={clearSelection}
+                              >
+                                清空
+                              </button>
+                              <button
+                                className="selection-export-btn"
+                                type="button"
+                                onClick={openBatchExport}
+                              >
+                                <span>批量导出</span>
+                                <span className="selection-export-count">{selectedCount}</span>
+                              </button>
+                            </>
+                          )}
+                        </span>
+                      </div>
+                    )}
                   </div>
-                  <p className="issue-message">{contactsLoadIssue.message}</p>
-                  <p className="issue-reason">{contactsLoadIssue.reason}</p>
-                  <ul className="issue-hints">
-                    <li>可能原因1：数据库当前仍在执行高开销查询（例如导出页后台统计）。</li>
-                    <li>可能原因2：contact.db 数据量较大，首次查询时间过长。</li>
-                    <li>可能原因3：数据库连接状态异常或 IPC 调用卡住。</li>
-                  </ul>
-                  <div className="issue-actions">
-                    <button className="issue-btn primary" onClick={() => void loadContactsList()}>
-                      <RefreshCw size={14} />
-                      <span>重试加载</span>
-                    </button>
-                    <button className="issue-btn" onClick={() => setShowContactsDiagnostics(prev => !prev)}>
-                      <ClipboardList size={14} />
-                      <span>{showContactsDiagnostics ? '收起诊断详情' : '查看诊断详情'}</span>
-                    </button>
-                    <button className="issue-btn" onClick={copyContactsDiagnostics}>
-                      <span>复制诊断信息</span>
-                    </button>
-                  </div>
-                  {showContactsDiagnostics && (
-                    <pre className="issue-diagnostics">{contactsDiagnosticsText}</pre>
+
+                  {contactsList.length === 0 && contactsLoadIssue ? (
+                    <div className="load-issue-state">
+                      <div className="issue-card">
+                        <div className="issue-title">
+                          <AlertTriangle size={18} />
+                          <span>{contactsLoadIssue.title}</span>
+                        </div>
+                        <p className="issue-message">{contactsLoadIssue.message}</p>
+                        <p className="issue-reason">{contactsLoadIssue.reason}</p>
+                        <ul className="issue-hints">
+                          <li>可能原因1：数据库当前仍在执行高开销查询（例如导出页后台统计）。</li>
+                          <li>可能原因2：contact.db 数据量较大，首次查询时间过长。</li>
+                          <li>可能原因3：数据库连接状态异常或 IPC 调用卡住。</li>
+                        </ul>
+                        <div className="issue-actions">
+                          <button className="issue-btn primary" onClick={() => void loadContactsList()}>
+                            <RefreshCw size={14} />
+                            <span>重试加载</span>
+                          </button>
+                          <button className="issue-btn" onClick={() => setShowContactsDiagnostics(prev => !prev)}>
+                            <ClipboardList size={14} />
+                            <span>{showContactsDiagnostics ? '收起诊断详情' : '查看诊断详情'}</span>
+                          </button>
+                          <button className="issue-btn" onClick={copyContactsDiagnostics}>
+                            <span>复制诊断信息</span>
+                          </button>
+                        </div>
+                        {showContactsDiagnostics && (
+                          <pre className="issue-diagnostics">{contactsDiagnosticsText}</pre>
+                        )}
+                      </div>
+                    </div>
+                  ) : isContactsListLoading && contactsList.length === 0 ? (
+                    <div className="loading-state">
+                      <Loader2 size={32} className="spin" />
+                      <span>联系人加载中...</span>
+                    </div>
+                  ) : !hasFilteredContacts ? (
+                    <div className="empty-state">
+                      <span>暂无联系人</span>
+                    </div>
+                  ) : (
+                    <div
+                      className="contacts-list"
+                      ref={handleContactsListScrollParentRef}
+                      onWheelCapture={handleContactsListWheelCapture}
+                    >
+                      <Virtuoso
+                        ref={contactsVirtuosoRef}
+                        className="contacts-virtuoso"
+                        customScrollParent={contactsListScrollParent ?? undefined}
+                        data={filteredContacts}
+                        computeItemKey={(_, contact) => contact.username}
+                        fixedItemHeight={76}
+                        itemContent={renderContactRow}
+                        rangeChanged={handleContactsRangeChanged}
+                        atTopStateChange={setIsContactsListAtTop}
+                        overscan={420}
+                      />
+                    </div>
                   )}
                 </div>
               </div>
-            ) : isContactsListLoading && contactsList.length === 0 ? (
-              <div className="loading-state">
-                <Loader2 size={32} className="spin" />
-                <span>联系人加载中...</span>
-              </div>
-            ) : !hasFilteredContacts ? (
-              <div className="empty-state">
-                <span>暂无联系人</span>
-              </div>
-            ) : (
+            </div>
+
+            {hasFilteredContacts && hasContactsHorizontalOverflow && (
               <div
-                className="contacts-list"
-                onWheelCapture={handleContactsListWheelCapture}
+                ref={contactsBottomScrollbarRef}
+                className="table-bottom-scrollbar"
+                onScroll={handleContactsBottomScrollbarScroll}
+                aria-label="会话列表横向滚动条"
               >
-                <Virtuoso
-                  ref={contactsVirtuosoRef}
-                  className="contacts-virtuoso"
-                  data={filteredContacts}
-                  computeItemKey={(_, contact) => contact.username}
-                  itemContent={renderContactRow}
-                  rangeChanged={handleContactsRangeChanged}
-                  atTopStateChange={setIsContactsListAtTop}
-                  overscan={420}
-                />
+                <div className="table-bottom-scrollbar-inner" style={contactsBottomScrollbarInnerStyle} />
               </div>
             )}
           </div>
@@ -6303,6 +6563,67 @@ function ExportPage() {
                 </div>
 
                 <div className="session-load-detail-body">
+                  <section className="session-load-detail-block">
+                    <h5>其他页面后台任务</h5>
+                    <div className="session-load-detail-summary">
+                      <div className="session-load-detail-summary-text">
+                        <strong>{runningNonExportTaskCount}</strong>
+                        <span>个任务正在占用后台读取资源</span>
+                        {nonExportBackgroundTasksUpdatedAt > 0 && (
+                          <em>最近更新时间 {new Date(nonExportBackgroundTasksUpdatedAt).toLocaleTimeString('zh-CN', { hour12: false })}</em>
+                        )}
+                      </div>
+                      <button
+                        type="button"
+                        className="session-load-detail-stop-btn"
+                        onClick={handleCancelAllNonExportTasks}
+                        disabled={cancelableNonExportTaskCount === 0}
+                      >
+                        中断其他页面加载
+                      </button>
+                    </div>
+                    <p className="session-load-detail-note">
+                      停止请求会阻止其他页面继续发起后续统计或补算；当前已经发出的单次查询，会在返回后结束。
+                    </p>
+                    {nonExportBackgroundTasks.length > 0 ? (
+                      <div className="session-load-detail-task-list">
+                        {nonExportBackgroundTasks.map((task) => (
+                          <div key={task.id} className={`session-load-detail-task-item status-${task.status}`}>
+                            <div className="session-load-detail-task-main">
+                              <div className="session-load-detail-task-title-row">
+                                <span className="session-load-detail-task-source">
+                                  {backgroundTaskSourceLabels[task.sourcePage] || backgroundTaskSourceLabels.other}
+                                </span>
+                                <strong>{task.title}</strong>
+                                <span className={`session-load-detail-task-status status-${task.status}`}>
+                                  {backgroundTaskStatusLabels[task.status]}
+                                </span>
+                              </div>
+                              <p>{task.detail || '暂无详细说明'}</p>
+                              <div className="session-load-detail-task-meta">
+                                <span>开始：{formatLoadDetailTime(task.startedAt)}</span>
+                                <span>更新：{formatLoadDetailTime(task.updatedAt)}</span>
+                                {task.progressText && <span>进度：{task.progressText}</span>}
+                              </div>
+                            </div>
+                            <button
+                              type="button"
+                              className="session-load-detail-task-stop-btn"
+                              onClick={() => handleCancelBackgroundTask(task.id)}
+                              disabled={!task.cancelable || (task.status !== 'running' && task.status !== 'cancel_requested')}
+                            >
+                              停止
+                            </button>
+                          </div>
+                        ))}
+                      </div>
+                    ) : (
+                      <div className="session-load-detail-empty">
+                        当前没有检测到其他页面后台任务
+                      </div>
+                    )}
+                  </section>
+
                   <section className="session-load-detail-block">
                     <h5>总消息数</h5>
                     <div className="session-load-detail-table">
diff --git a/src/pages/GroupAnalyticsPage.scss b/src/pages/GroupAnalyticsPage.scss
index b9cd651..d7f5184 100644
--- a/src/pages/GroupAnalyticsPage.scss
+++ b/src/pages/GroupAnalyticsPage.scss
@@ -1,6 +1,14 @@
+.group-analytics-shell {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  min-height: 100%;
+}
+
 .group-analytics-page {
   display: flex;
-  height: 100%;
+  flex: 1;
+  min-height: 0;
   gap: 16px;
 
   &.standalone {
diff --git a/src/pages/GroupAnalyticsPage.tsx b/src/pages/GroupAnalyticsPage.tsx
index 05a616d..ae372ad 100644
--- a/src/pages/GroupAnalyticsPage.tsx
+++ b/src/pages/GroupAnalyticsPage.tsx
@@ -4,7 +4,14 @@ import { Users, BarChart3, Clock, Image, Loader2, RefreshCw, Medal, Search, X, C
 import { Avatar } from '../components/Avatar'
 import ReactECharts from 'echarts-for-react'
 import DateRangePicker from '../components/DateRangePicker'
+import ChatAnalysisHeader from '../components/ChatAnalysisHeader'
 import * as configService from '../services/config'
+import {
+  finishBackgroundTask,
+  isBackgroundTaskCancelRequested,
+  registerBackgroundTask,
+  updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import './GroupAnalyticsPage.scss'
 
 interface GroupChatInfo {
@@ -176,15 +183,39 @@ function GroupAnalyticsPage() {
   }, [])
 
   const loadGroups = useCallback(async () => {
+    const taskId = registerBackgroundTask({
+      sourcePage: 'groupAnalytics',
+      title: '群列表加载',
+      detail: '正在读取群聊列表',
+      progressText: '群聊列表',
+      cancelable: true
+    })
     setIsLoading(true)
     try {
       const result = await window.electronAPI.groupAnalytics.getGroupChats()
+      if (isBackgroundTaskCancelRequested(taskId)) {
+        finishBackgroundTask(taskId, 'canceled', {
+          detail: '已停止后续加载，群聊列表结果未继续写入'
+        })
+        return
+      }
       if (result.success && result.data) {
         setGroups(result.data)
         setFilteredGroups(result.data)
+        finishBackgroundTask(taskId, 'completed', {
+          detail: `群聊列表加载完成，共 ${result.data.length} 个群`,
+          progressText: `${result.data.length} 个群`
+        })
+      } else {
+        finishBackgroundTask(taskId, 'failed', {
+          detail: result.error || '加载群聊列表失败'
+        })
       }
     } catch (e) {
       console.error(e)
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(e)
+      })
     } finally {
       setIsLoading(false)
     }
@@ -314,6 +345,13 @@ function GroupAnalyticsPage() {
 
   const loadFunctionData = async (func: AnalysisFunction) => {
     if (!selectedGroup) return
+    const taskId = registerBackgroundTask({
+      sourcePage: 'groupAnalytics',
+      title: `群分析：${func}`,
+      detail: `正在读取 ${selectedGroup.displayName || selectedGroup.username} 的分析数据`,
+      progressText: func,
+      cancelable: true
+    })
     setFunctionLoading(true)
 
     // 计算时间戳
@@ -323,33 +361,96 @@ function GroupAnalyticsPage() {
     try {
       switch (func) {
         case 'members': {
+          updateBackgroundTask(taskId, {
+            detail: '正在读取群成员列表',
+            progressText: '成员列表'
+          })
           const result = await window.electronAPI.groupAnalytics.getGroupMembers(selectedGroup.username)
+          if (isBackgroundTaskCancelRequested(taskId)) {
+            finishBackgroundTask(taskId, 'canceled', { detail: '已停止后续加载，群成员列表未继续写入' })
+            return
+          }
           if (result.success && result.data) setMembers(result.data)
+          finishBackgroundTask(taskId, result.success ? 'completed' : 'failed', {
+            detail: result.success ? `群成员列表加载完成，共 ${result.data?.length || 0} 人` : (result.error || '读取群成员列表失败'),
+            progressText: result.success ? `${result.data?.length || 0} 人` : '失败'
+          })
           break
         }
         case 'memberExport': {
+          updateBackgroundTask(taskId, {
+            detail: '正在读取导出成员列表',
+            progressText: '成员导出'
+          })
           const result = await window.electronAPI.groupAnalytics.getGroupMembers(selectedGroup.username)
+          if (isBackgroundTaskCancelRequested(taskId)) {
+            finishBackgroundTask(taskId, 'canceled', { detail: '已停止后续加载，成员导出列表未继续写入' })
+            return
+          }
           if (result.success && result.data) setMembers(result.data)
+          finishBackgroundTask(taskId, result.success ? 'completed' : 'failed', {
+            detail: result.success ? `成员导出列表加载完成，共 ${result.data?.length || 0} 人` : (result.error || '读取成员导出列表失败'),
+            progressText: result.success ? `${result.data?.length || 0} 人` : '失败'
+          })
           break
         }
         case 'ranking': {
+          updateBackgroundTask(taskId, {
+            detail: '正在计算群消息排行',
+            progressText: '消息排行'
+          })
           const result = await window.electronAPI.groupAnalytics.getGroupMessageRanking(selectedGroup.username, 20, startTime, endTime)
+          if (isBackgroundTaskCancelRequested(taskId)) {
+            finishBackgroundTask(taskId, 'canceled', { detail: '已停止后续加载，群消息排行未继续写入' })
+            return
+          }
           if (result.success && result.data) setRankings(result.data)
+          finishBackgroundTask(taskId, result.success ? 'completed' : 'failed', {
+            detail: result.success ? `群消息排行加载完成，共 ${result.data?.length || 0} 条` : (result.error || '读取群消息排行失败'),
+            progressText: result.success ? `${result.data?.length || 0} 条` : '失败'
+          })
           break
         }
         case 'activeHours': {
+          updateBackgroundTask(taskId, {
+            detail: '正在计算群活跃时段',
+            progressText: '活跃时段'
+          })
           const result = await window.electronAPI.groupAnalytics.getGroupActiveHours(selectedGroup.username, startTime, endTime)
+          if (isBackgroundTaskCancelRequested(taskId)) {
+            finishBackgroundTask(taskId, 'canceled', { detail: '已停止后续加载，群活跃时段未继续写入' })
+            return
+          }
           if (result.success && result.data) setActiveHours(result.data.hourlyDistribution)
+          finishBackgroundTask(taskId, result.success ? 'completed' : 'failed', {
+            detail: result.success ? '群活跃时段加载完成' : (result.error || '读取群活跃时段失败'),
+            progressText: result.success ? '24 小时分布' : '失败'
+          })
           break
         }
         case 'mediaStats': {
+          updateBackgroundTask(taskId, {
+            detail: '正在统计群消息类型',
+            progressText: '消息类型'
+          })
           const result = await window.electronAPI.groupAnalytics.getGroupMediaStats(selectedGroup.username, startTime, endTime)
+          if (isBackgroundTaskCancelRequested(taskId)) {
+            finishBackgroundTask(taskId, 'canceled', { detail: '已停止后续加载，群消息类型统计未继续写入' })
+            return
+          }
           if (result.success && result.data) setMediaStats(result.data)
+          finishBackgroundTask(taskId, result.success ? 'completed' : 'failed', {
+            detail: result.success ? `群消息类型统计完成，共 ${result.data?.total || 0} 条` : (result.error || '读取群消息类型统计失败'),
+            progressText: result.success ? `${result.data?.total || 0} 条` : '失败'
+          })
           break
         }
       }
     } catch (e) {
       console.error(e)
+      finishBackgroundTask(taskId, 'failed', {
+        detail: String(e)
+      })
     } finally {
       setFunctionLoading(false)
     }
@@ -1085,11 +1186,14 @@ function GroupAnalyticsPage() {
   }
 
   return (
-    <div className={`group-analytics-page ${isResizing ? 'resizing' : ''}`} ref={containerRef}>
-      {renderGroupList()}
-      <div className="resize-handle" onMouseDown={() => setIsResizing(true)} />
-      <div className="detail-area">
-        {renderDetailPanel()}
+    <div className="group-analytics-shell">
+      <ChatAnalysisHeader currentMode="group" />
+      <div className={`group-analytics-page ${isResizing ? 'resizing' : ''}`} ref={containerRef}>
+        {renderGroupList()}
+        <div className="resize-handle" onMouseDown={() => setIsResizing(true)} />
+        <div className="detail-area">
+          {renderDetailPanel()}
+        </div>
       </div>
       {renderMemberModal()}
     </div>
diff --git a/src/pages/SettingsPage.scss b/src/pages/SettingsPage.scss
index 8dc2525..fa710b6 100644
--- a/src/pages/SettingsPage.scss
+++ b/src/pages/SettingsPage.scss
@@ -1,17 +1,38 @@
+.settings-modal-overlay {
+  position: fixed;
+  top: 41px;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  z-index: 2050;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 28px 32px;
+  background: rgba(15, 23, 42, 0.28);
+  backdrop-filter: blur(10px);
+}
+
 .settings-page {
   display: flex;
   flex-direction: column;
-  height: 100%;
-  margin: -24px;
+  width: min(1160px, calc(100vw - 96px));
+  height: min(820px, calc(100vh - 120px));
+  max-height: 100%;
   padding: 24px;
+  background: var(--bg-primary);
+  border: 1px solid var(--border-color);
+  border-radius: 24px;
+  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.22);
   overflow: hidden;
 }
 
 .settings-header {
   display: flex;
-  align-items: center;
+  align-items: flex-start;
   justify-content: space-between;
-  margin-bottom: 20px;
+  gap: 20px;
+  margin-bottom: 14px;
   flex-shrink: 0;
 
   h1 {
@@ -22,51 +43,91 @@
   }
 }
 
+.settings-title-block {
+  display: flex;
+  flex-direction: column;
+}
+
 .settings-actions {
   display: flex;
+  align-items: center;
   gap: 12px;
 }
 
+.settings-close-btn {
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  border: 1px solid var(--border-color);
+  border-radius: 10px;
+  background: var(--bg-secondary);
+  color: var(--text-secondary);
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
+
+  &:hover {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+    border-color: rgba(139, 115, 85, 0.28);
+  }
+}
+
+.settings-layout {
+  flex: 1;
+  min-height: 0;
+  display: flex;
+  gap: 20px;
+  overflow: hidden;
+}
+
 .settings-tabs {
   display: flex;
-  gap: 4px;
-  padding: 4px;
-  background: var(--bg-tertiary);
-  border-radius: 12px;
-  margin-bottom: 20px;
-  flex-shrink: 0;
-  width: fit-content;
-}
-
-.tab-btn {
-  display: flex;
-  align-items: center;
+  flex-direction: column;
   gap: 6px;
-  padding: 10px 18px;
-  border: none;
-  border-radius: 8px;
-  font-size: 14px;
-  font-weight: 500;
-  cursor: pointer;
-  transition: all 0.2s;
-  background: transparent;
-  color: var(--text-secondary);
+  padding: 12px;
+  width: 220px;
+  flex-shrink: 0;
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-color);
+  border-radius: 20px;
+  overflow-y: auto;
 
-  &:hover {
-    color: var(--text-primary);
-    background: var(--bg-secondary);
-  }
+  .tab-btn {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    width: 100%;
+    justify-content: flex-start;
+    padding: 11px 14px;
+    border: none;
+    border-radius: 12px;
+    font-size: 14px;
+    font-weight: 500;
+    cursor: pointer;
+    transition: all 0.2s;
+    background: transparent;
+    color: var(--text-secondary);
 
-  &.active {
-    background: var(--card-bg);
-    color: var(--primary);
-    box-shadow: var(--shadow-sm);
+    &:hover {
+      color: var(--text-primary);
+      background: var(--bg-secondary);
+    }
+
+    &.active {
+      background: var(--card-bg);
+      color: var(--primary);
+      box-shadow: var(--shadow-sm);
+    }
   }
 }
 
 .settings-body {
   flex: 1;
   overflow-y: auto;
+  min-width: 0;
   padding-right: 8px;
 
   &::-webkit-scrollbar {
@@ -85,8 +146,10 @@
 
 .tab-content {
   background: var(--bg-secondary);
-  border-radius: 16px;
+  border: 1px solid var(--border-color);
+  border-radius: 20px;
   padding: 24px;
+  min-height: 100%;
 
   .section-desc {
     font-size: 13px;
@@ -932,7 +995,7 @@
   padding: 10px 24px;
   border-radius: 9999px;
   font-size: 14px;
-  z-index: 100;
+  z-index: 2200;
   animation: slideDown 0.3s ease;
 
   &.success {
@@ -946,6 +1009,27 @@
   }
 }
 
+@media (max-width: 960px) {
+  .settings-modal-overlay {
+    padding: 20px;
+  }
+
+  .settings-page {
+    width: min(100%, calc(100vw - 40px));
+    height: min(100%, calc(100vh - 82px));
+    padding: 20px;
+  }
+
+  .settings-layout {
+    flex-direction: column;
+  }
+
+  .settings-tabs {
+    width: 100%;
+    max-height: 220px;
+  }
+}
+
 @keyframes slideDown {
   from {
     opacity: 0;
@@ -1784,54 +1868,106 @@
 
 .model-status-card {
   display: flex;
-  justify-content: space-between;
-  align-items: center;
-  gap: 16px;
+  flex-direction: column;
+  align-items: stretch;
+  gap: 14px;
 }
 
 .model-info {
-  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
   min-width: 0;
 
+  .model-name-row {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    flex-wrap: wrap;
+  }
+
   .model-name {
     font-size: 15px;
     font-weight: 600;
     color: var(--text-primary);
-    margin-bottom: 6px;
   }
 
-  .model-path {
+  .model-size {
+    display: inline-flex;
+    align-items: center;
+    padding: 3px 9px;
+    border-radius: 999px;
+    background: color-mix(in srgb, var(--primary) 8%, var(--bg-secondary));
+    color: var(--text-secondary);
+    font-size: 12px;
+    font-weight: 600;
+  }
+
+  .model-meta {
     display: flex;
     flex-direction: column;
-    gap: 4px;
+    align-items: flex-start;
+    gap: 10px;
 
     .status-indicator {
       display: inline-flex;
       align-items: center;
       gap: 4px;
+      width: fit-content;
+      padding: 4px 10px;
+      border-radius: 999px;
       font-size: 12px;
-      font-weight: 500;
+      font-weight: 600;
 
       &.success {
+        background: rgba(16, 185, 129, 0.1);
+        border: 1px solid rgba(16, 185, 129, 0.2);
         color: #10b981;
       }
 
       &.warning {
+        background: rgba(245, 158, 11, 0.1);
+        border: 1px solid rgba(245, 158, 11, 0.2);
         color: #f59e0b;
       }
     }
 
+    .model-path-block {
+      width: 100%;
+      display: flex;
+      flex-direction: column;
+      gap: 6px;
+      padding: 10px 12px;
+      border: 1px solid var(--border-color);
+      border-radius: 12px;
+      background: var(--bg-secondary);
+    }
+
+    .path-label {
+      font-size: 11px;
+      font-weight: 600;
+      color: var(--text-tertiary);
+      letter-spacing: 0.02em;
+    }
+
     .path-text {
       font-size: 12px;
       color: var(--text-tertiary);
       font-family: monospace;
-      word-break: break-all;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      white-space: nowrap;
     }
   }
 }
 
 .model-actions {
-  flex-shrink: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  align-items: flex-start;
+  padding-top: 14px;
+  border-top: 1px solid var(--border-color);
 
   .btn-download {
     display: inline-flex;
@@ -1866,16 +2002,18 @@
   .download-status {
     display: flex;
     flex-direction: column;
-    gap: 6px;
-    width: 280px;
+    gap: 8px;
+    width: 100%;
+    max-width: 420px;
 
     .status-header,
     .progress-info {
-      // specific layout class
       display: flex;
       justify-content: space-between;
-      align-items: center; // Align vertically
+      align-items: center;
       width: 100%;
+      gap: 12px;
+      flex-wrap: wrap;
     }
 
     .percent {
@@ -1889,6 +2027,7 @@
     .details {
       display: flex;
       align-items: center;
+      flex-wrap: wrap;
       gap: 6px;
       font-size: 12px;
       color: var(--text-secondary);
@@ -1963,10 +2102,12 @@
 .path-selector {
   display: flex;
   gap: 8px;
+  flex-wrap: wrap;
 
   input {
     margin-bottom: 0 !important;
     flex: 1;
+    min-width: 220px;
     font-family: monospace;
     font-size: 12px;
   }
diff --git a/src/pages/SettingsPage.tsx b/src/pages/SettingsPage.tsx
index 8afa61b..9c5e664 100644
--- a/src/pages/SettingsPage.tsx
+++ b/src/pages/SettingsPage.tsx
@@ -10,7 +10,7 @@ import {
   Eye, EyeOff, FolderSearch, FolderOpen, Search, Copy,
   RotateCcw, Trash2, Plug, Check, Sun, Moon, Monitor,
   Palette, Database, HardDrive, Info, RefreshCw, ChevronDown, Download, Mic,
-  ShieldCheck, Fingerprint, Lock, KeyRound, Bell, Globe, BarChart2
+  ShieldCheck, Fingerprint, Lock, KeyRound, Bell, Globe, BarChart2, X
 } from 'lucide-react'
 import { Avatar } from '../components/Avatar'
 import './SettingsPage.scss'
@@ -36,7 +36,11 @@ interface WxidOption {
   modifiedTime: number
 }
 
-function SettingsPage() {
+interface SettingsPageProps {
+  onClose?: () => void
+}
+
+function SettingsPage({ onClose }: SettingsPageProps = {}) {
   const location = useLocation()
   const {
     isDbConnected,
@@ -195,6 +199,17 @@ function SettingsPage() {
     setActiveTab(initialTab)
   }, [location.state])
 
+  useEffect(() => {
+    if (!onClose) return
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') {
+        onClose()
+      }
+    }
+    document.addEventListener('keydown', handleKeyDown)
+    return () => document.removeEventListener('keydown', handleKeyDown)
+  }, [onClose])
+
   useEffect(() => {
     const removeDb = window.electronAPI.key.onDbKeyStatus((payload: { message: string; level: number }) => {
       setDbKeyStatus(payload.message)
@@ -1410,6 +1425,8 @@ function SettingsPage() {
       </div>
     </div>
   )
+  const resolvedWhisperModelPath = whisperModelDir || whisperModelStatus?.modelPath || ''
+
   const renderModelsTab = () => (
     <div className="tab-content">
       <div className="form-group">
@@ -1424,42 +1441,52 @@ function SettingsPage() {
         <div className="setting-control vertical has-border">
           <div className="model-status-card">
             <div className="model-info">
-              <div className="model-name">SenseVoiceSmall (245 MB)</div>
-              <div className="model-path">
+              <div className="model-name-row">
+                <div className="model-name">SenseVoiceSmall</div>
+                <span className="model-size">245 MB</span>
+              </div>
+              <div className="model-meta">
                 {whisperModelStatus?.exists ? (
                   <span className="status-indicator success"><Check size={14} /> 已安装</span>
                 ) : (
                   <span className="status-indicator warning">未安装</span>
                 )}
-                {whisperModelDir && <div className="path-text" title={whisperModelDir}>{whisperModelDir}</div>}
+                {resolvedWhisperModelPath && (
+                  <div className="model-path-block">
+                    <span className="path-label">模型目录</span>
+                    <div className="path-text" title={resolvedWhisperModelPath}>{resolvedWhisperModelPath}</div>
+                  </div>
+                )}
               </div>
             </div>
-            <div className="model-actions">
-              {!whisperModelStatus?.exists && !isWhisperDownloading && (
-                <button
-                  className="btn-download"
-                  onClick={handleDownloadWhisperModel}
-                >
-                  <Download size={16} /> 下载模型
-                </button>
-              )}
-              {isWhisperDownloading && (
-                <div className="download-status">
-                  <div className="status-header">
-                    <span className="percent">{Math.round(whisperDownloadProgress)}%</span>
-                    {whisperProgressData.total > 0 && (
-                      <span className="details">
-                        {formatBytes(whisperProgressData.downloaded)} / {formatBytes(whisperProgressData.total)}
-                        <span className="speed">({formatBytes(whisperProgressData.speed)}/s)</span>
-                      </span>
-                    )}
+            {(!whisperModelStatus?.exists || isWhisperDownloading) && (
+              <div className="model-actions">
+                {!whisperModelStatus?.exists && !isWhisperDownloading && (
+                  <button
+                    className="btn-download"
+                    onClick={handleDownloadWhisperModel}
+                  >
+                    <Download size={16} /> 下载模型
+                  </button>
+                )}
+                {isWhisperDownloading && (
+                  <div className="download-status">
+                    <div className="status-header">
+                      <span className="percent">{Math.round(whisperDownloadProgress)}%</span>
+                      {whisperProgressData.total > 0 && (
+                        <span className="details">
+                          {formatBytes(whisperProgressData.downloaded)} / {formatBytes(whisperProgressData.total)}
+                          <span className="speed">({formatBytes(whisperProgressData.speed)}/s)</span>
+                        </span>
+                      )}
+                    </div>
+                    <div className="progress-bar-mini">
+                      <div className="fill" style={{ width: `${whisperDownloadProgress}%` }}></div>
+                    </div>
                   </div>
-                  <div className="progress-bar-mini">
-                    <div className="fill" style={{ width: `${whisperDownloadProgress}%` }}></div>
-                  </div>
-                </div>
-              )}
-            </div>
+                )}
+              </div>
+            )}
           </div>
 
           <div className="sub-setting">
@@ -2049,66 +2076,80 @@ function SettingsPage() {
   )
 
   return (
-    <div className="settings-page">
-      {message && <div className={`message-toast ${message.success ? 'success' : 'error'}`}>{message.text}</div>}
+    <div className="settings-modal-overlay" onClick={() => onClose?.()}>
+      <div className="settings-page" onClick={(event) => event.stopPropagation()}>
+        {message && <div className={`message-toast ${message.success ? 'success' : 'error'}`}>{message.text}</div>}
 
-      {/* 多账号选择对话框 */}
-      {showWxidSelect && wxidOptions.length > 1 && (
-        <div className="wxid-dialog-overlay" onClick={() => setShowWxidSelect(false)}>
-          <div className="wxid-dialog" onClick={(e) => e.stopPropagation()}>
-            <div className="wxid-dialog-header">
-              <h3>检测到多个微信账号</h3>
-              <p>请选择要使用的账号</p>
-            </div>
-            <div className="wxid-dialog-list">
-              {wxidOptions.map((opt) => (
-                <div
-                  key={opt.wxid}
-                  className={`wxid-dialog-item ${opt.wxid === wxid ? 'active' : ''}`}
-                  onClick={() => handleSelectWxid(opt.wxid)}
-                >
-                  <span className="wxid-id">{opt.wxid}</span>
-                  <span className="wxid-date">最后修改 {new Date(opt.modifiedTime).toLocaleString()}</span>
-                </div>
-              ))}
-            </div>
-            <div className="wxid-dialog-footer">
-              <button className="btn btn-secondary" onClick={() => setShowWxidSelect(false)}>取消</button>
+        {/* 多账号选择对话框 */}
+        {showWxidSelect && wxidOptions.length > 1 && (
+          <div className="wxid-dialog-overlay" onClick={() => setShowWxidSelect(false)}>
+            <div className="wxid-dialog" onClick={(e) => e.stopPropagation()}>
+              <div className="wxid-dialog-header">
+                <h3>检测到多个微信账号</h3>
+                <p>请选择要使用的账号</p>
+              </div>
+              <div className="wxid-dialog-list">
+                {wxidOptions.map((opt) => (
+                  <div
+                    key={opt.wxid}
+                    className={`wxid-dialog-item ${opt.wxid === wxid ? 'active' : ''}`}
+                    onClick={() => handleSelectWxid(opt.wxid)}
+                  >
+                    <span className="wxid-id">{opt.wxid}</span>
+                    <span className="wxid-date">最后修改 {new Date(opt.modifiedTime).toLocaleString()}</span>
+                  </div>
+                ))}
+              </div>
+              <div className="wxid-dialog-footer">
+                <button className="btn btn-secondary" onClick={() => setShowWxidSelect(false)}>取消</button>
+              </div>
             </div>
           </div>
-        </div>
-      )}
+        )}
 
-      <div className="settings-header">
-        <h1>设置</h1>
-        <div className="settings-actions">
-          <button className="btn btn-secondary" onClick={handleTestConnection} disabled={isLoading || isTesting}>
-            <Plug size={16} /> {isTesting ? '测试中...' : '测试连接'}
-          </button>
+        <div className="settings-header">
+          <div className="settings-title-block">
+            <h1>设置</h1>
+          </div>
+          <div className="settings-actions">
+            <button className="btn btn-secondary" onClick={handleTestConnection} disabled={isLoading || isTesting}>
+              <Plug size={16} /> {isTesting ? '测试中...' : '测试连接'}
+            </button>
+            {onClose && (
+              <button type="button" className="settings-close-btn" onClick={onClose} aria-label="关闭设置">
+                <X size={18} />
+              </button>
+            )}
+          </div>
+        </div>
+
+        <div className="settings-layout">
+          <div className="settings-tabs" role="tablist" aria-label="设置项">
+            {tabs.map(tab => (
+              <button
+                key={tab.id}
+                className={`tab-btn ${activeTab === tab.id ? 'active' : ''}`}
+                onClick={() => setActiveTab(tab.id)}
+              >
+                <tab.icon size={16} />
+                <span>{tab.label}</span>
+              </button>
+            ))}
+          </div>
+
+          <div className="settings-body">
+            {activeTab === 'appearance' && renderAppearanceTab()}
+            {activeTab === 'notification' && renderNotificationTab()}
+            {activeTab === 'database' && renderDatabaseTab()}
+            {activeTab === 'models' && renderModelsTab()}
+            {activeTab === 'cache' && renderCacheTab()}
+            {activeTab === 'api' && renderApiTab()}
+            {activeTab === 'analytics' && renderAnalyticsTab()}
+            {activeTab === 'security' && renderSecurityTab()}
+            {activeTab === 'about' && renderAboutTab()}
+          </div>
         </div>
       </div>
-
-      <div className="settings-tabs">
-        {tabs.map(tab => (
-          <button key={tab.id} className={`tab-btn ${activeTab === tab.id ? 'active' : ''}`} onClick={() => setActiveTab(tab.id)}>
-            <tab.icon size={16} />
-            <span>{tab.label}</span>
-          </button>
-        ))}
-      </div>
-
-      <div className="settings-body">
-        {activeTab === 'appearance' && renderAppearanceTab()}
-        {activeTab === 'notification' && renderNotificationTab()}
-        {activeTab === 'database' && renderDatabaseTab()}
-        {activeTab === 'models' && renderModelsTab()}
-        {activeTab === 'cache' && renderCacheTab()}
-        {activeTab === 'api' && renderApiTab()}
-        {activeTab === 'analytics' && renderAnalyticsTab()}
-        {activeTab === 'security' && renderSecurityTab()}
-        {activeTab === 'about' && renderAboutTab()}
-      </div>
-
     </div>
   )
 }
diff --git a/src/pages/SnsPage.scss b/src/pages/SnsPage.scss
index d6d24ad..45fcfbc 100644
--- a/src/pages/SnsPage.scss
+++ b/src/pages/SnsPage.scss
@@ -1,7 +1,7 @@
 /* Global Variables */
 :root {
     --sns-max-width: 800px;
-    --sns-panel-width: 320px;
+    --sns-panel-width: 380px;
     --sns-bg-color: var(--bg-primary);
     --sns-card-bg: var(--bg-secondary);
     --sns-border-radius-lg: 16px;
@@ -263,6 +263,48 @@
     padding-top: 16px;
 }
 
+.feed-contact-filter-bar {
+    margin: 10px 4px 0;
+    padding: 10px 12px;
+    border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border-color));
+    border-radius: 12px;
+    background: rgba(var(--primary-rgb), 0.08);
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    flex-wrap: wrap;
+
+    .feed-contact-filter-label {
+        font-size: 12px;
+        color: var(--text-secondary);
+        white-space: nowrap;
+    }
+
+    .feed-contact-filter-summary {
+        font-size: 13px;
+        color: var(--text-primary);
+        font-weight: 600;
+        min-width: 0;
+    }
+
+    .feed-contact-filter-clear {
+        margin-left: auto;
+        border: none;
+        background: transparent;
+        color: var(--primary);
+        font-size: 12px;
+        font-weight: 600;
+        cursor: pointer;
+        padding: 0;
+        white-space: nowrap;
+
+        &:hover {
+            text-decoration: underline;
+            text-underline-offset: 2px;
+        }
+    }
+}
+
 .posts-list {
     display: flex;
     flex-direction: column;
@@ -1211,6 +1253,13 @@
             font-variant-numeric: tabular-nums;
         }
 
+        .contact-interaction-hint {
+            padding: 10px 16px 0;
+            font-size: 11px;
+            line-height: 1.5;
+            color: var(--text-tertiary);
+        }
+
         .contact-list-scroll {
             flex: 1;
             overflow-y: auto;
@@ -1218,23 +1267,75 @@
             display: flex;
             flex-direction: column;
             gap: 0;
-            /* Remove gap to allow borders to merge */
 
             .contact-row {
                 display: flex;
                 align-items: center;
-                gap: 12px;
-                padding: 10px;
-                border-radius: var(--sns-border-radius-md);
-                cursor: pointer;
-                transition: background 0.2s ease, transform 0.2s ease;
-                border: 1px solid transparent;
+                gap: 8px;
                 margin-bottom: 4px;
+                border-radius: var(--sns-border-radius-md);
+                transition: transform 0.2s ease;
 
                 &:hover {
-                    background: var(--hover-bg);
                     transform: translateX(2px);
-                    z-index: 10;
+                }
+
+                &.is-selected .contact-main-btn {
+                    background: rgba(var(--primary-rgb), 0.06);
+                    border-color: color-mix(in srgb, var(--primary) 20%, var(--border-color));
+                }
+
+                &.is-active .contact-main-btn {
+                    background: rgba(var(--primary-rgb), 0.12);
+                    border-color: color-mix(in srgb, var(--primary) 48%, var(--border-color));
+                    box-shadow: inset 0 0 0 1px rgba(var(--primary-rgb), 0.18);
+                }
+
+                &.is-active .contact-name {
+                    color: var(--text-primary);
+                }
+
+                .contact-select-btn {
+                    width: 32px;
+                    height: 32px;
+                    flex-shrink: 0;
+                    border: none;
+                    background: transparent;
+                    border-radius: 8px;
+                    color: var(--text-tertiary);
+                    display: inline-flex;
+                    align-items: center;
+                    justify-content: center;
+                    cursor: pointer;
+                    transition: background 0.2s ease, color 0.2s ease;
+
+                    &:hover {
+                        background: rgba(var(--primary-rgb), 0.1);
+                        color: var(--primary);
+                    }
+
+                    &.checked {
+                        color: var(--primary);
+                    }
+                }
+
+                .contact-main-btn {
+                    flex: 1;
+                    min-width: 0;
+                    display: flex;
+                    align-items: center;
+                    gap: 12px;
+                    padding: 10px 12px;
+                    border-radius: var(--sns-border-radius-md);
+                    border: 1px solid transparent;
+                    background: transparent;
+                    cursor: pointer;
+                    transition: background 0.2s ease, border-color 0.2s ease;
+                    text-align: left;
+
+                    &:hover {
+                        background: var(--hover-bg);
+                    }
                 }
 
                 .contact-meta {
@@ -1282,6 +1383,51 @@
             }
         }
 
+        .contact-batch-bar {
+            display: flex;
+            align-items: center;
+            gap: 8px;
+            padding: 12px 16px 14px;
+            border-top: 1px solid var(--border-color);
+            background: color-mix(in srgb, var(--bg-primary) 86%, var(--bg-secondary));
+        }
+
+        .contact-batch-summary {
+            flex: 1;
+            min-width: 0;
+            font-size: 12px;
+            color: var(--text-secondary);
+            font-variant-numeric: tabular-nums;
+        }
+
+        .contact-batch-btn {
+            border: 1px solid var(--border-color);
+            background: var(--bg-secondary);
+            color: var(--text-secondary);
+            border-radius: var(--sns-border-radius-md);
+            height: 32px;
+            padding: 0 10px;
+            display: inline-flex;
+            align-items: center;
+            justify-content: center;
+            gap: 6px;
+            font-size: 12px;
+            cursor: pointer;
+            transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
+
+            &:hover {
+                border-color: var(--text-tertiary);
+                background: var(--hover-bg);
+                color: var(--text-primary);
+            }
+
+            &.primary {
+                border-color: color-mix(in srgb, var(--primary) 35%, var(--border-color));
+                background: rgba(var(--primary-rgb), 0.12);
+                color: var(--primary);
+            }
+        }
+
         .empty-state {
             text-align: center;
             color: var(--text-tertiary);
diff --git a/src/pages/SnsPage.tsx b/src/pages/SnsPage.tsx
index 0482240..fb8f009 100644
--- a/src/pages/SnsPage.tsx
+++ b/src/pages/SnsPage.tsx
@@ -9,6 +9,12 @@ import type { ContactSnsTimelineTarget } from '../components/Sns/contactSnsTimel
 import JumpToDatePopover from '../components/JumpToDatePopover'
 import { ExportDateRangeDialog } from '../components/Export/ExportDateRangeDialog'
 import * as configService from '../services/config'
+import {
+    finishBackgroundTask,
+    isBackgroundTaskCancelRequested,
+    registerBackgroundTask,
+    updateBackgroundTask
+} from '../services/backgroundTaskMonitor'
 import {
     createExportDateRangeSelectionFromPreset,
     getExportDateRangeLabel,
@@ -57,6 +63,7 @@ interface SnsOverviewStats {
 }
 
 type OverviewStatsStatus = 'loading' | 'ready' | 'error'
+type SnsExportScope = { kind: 'all' } | { kind: 'selected'; usernames: string[] }
 
 const SIDEBAR_USER_PROFILE_CACHE_KEY = 'sidebar_user_profile_cache_v1'
 
@@ -117,6 +124,7 @@ export default function SnsPage() {
         total: 0,
         running: false
     })
+    const [selectedContactUsernames, setSelectedContactUsernames] = useState<string[]>([])
     const [currentUserProfile, setCurrentUserProfile] = useState<SidebarUserProfile>(() => readSidebarUserProfileCache() || {
         wxid: '',
         displayName: ''
@@ -134,6 +142,7 @@ export default function SnsPage() {
 
     // 导出相关状态
     const [showExportDialog, setShowExportDialog] = useState(false)
+    const [exportScope, setExportScope] = useState<SnsExportScope>({ kind: 'all' })
     const [exportFormat, setExportFormat] = useState<'json' | 'html' | 'arkmejson'>('html')
     const [exportFolder, setExportFolder] = useState('')
     const [exportImages, setExportImages] = useState(false)
@@ -164,9 +173,11 @@ export default function SnsPage() {
     const overviewStatsStatusRef = useRef<OverviewStatsStatus>(overviewStatsStatus)
     const searchKeywordRef = useRef(searchKeyword)
     const jumpTargetDateRef = useRef<Date | undefined>(jumpTargetDate)
+    const selectedContactUsernamesRef = useRef<string[]>(selectedContactUsernames)
     const cacheScopeKeyRef = useRef('')
     const snsUserPostCountsCacheScopeKeyRef = useRef('')
     const scrollAdjustmentRef = useRef<{ scrollHeight: number; scrollTop: number } | null>(null)
+    const pendingResetFeedRef = useRef(false)
     const contactsLoadTokenRef = useRef(0)
     const contactsCountHydrationTokenRef = useRef(0)
     const contactsCountBatchTimerRef = useRef<number | null>(null)
@@ -180,6 +191,13 @@ export default function SnsPage() {
     useEffect(() => {
         contactsRef.current = contacts
     }, [contacts])
+    useEffect(() => {
+        const contactLookup = new Set(contacts.map((contact) => contact.username))
+        setSelectedContactUsernames((prev) => {
+            const next = prev.filter((username) => contactLookup.has(username))
+            return next.length === prev.length ? prev : next
+        })
+    }, [contacts])
     useEffect(() => {
         overviewStatsRef.current = overviewStats
     }, [overviewStats])
@@ -192,6 +210,9 @@ export default function SnsPage() {
     useEffect(() => {
         jumpTargetDateRef.current = jumpTargetDate
     }, [jumpTargetDate])
+    useEffect(() => {
+        selectedContactUsernamesRef.current = selectedContactUsernames
+    }, [selectedContactUsernames])
     useEffect(() => {
         if (!showJumpPopover) {
             setJumpPopoverDate(jumpTargetDate || new Date())
@@ -370,6 +391,31 @@ export default function SnsPage() {
         return contacts.find((contact) => contact.username === normalizedTargetUsername) || null
     }, [authorTimelineTarget, contacts])
 
+    const exportSelectedContactsSummary = useMemo(() => {
+        if (exportScope.kind !== 'selected' || exportScope.usernames.length === 0) return ''
+        const contactMap = new Map(contacts.map((contact) => [contact.username, contact]))
+        const names = exportScope.usernames.map((username) => contactMap.get(username)?.displayName || username)
+        if (names.length <= 2) return names.join('、')
+        return `${names.slice(0, 2).join('、')} 等 ${names.length} 位联系人`
+    }, [contacts, exportScope])
+
+    const selectedFeedContactsSummary = useMemo(() => {
+        if (selectedContactUsernames.length === 0) return ''
+        const contactMap = new Map(contacts.map((contact) => [contact.username, contact]))
+        const names = selectedContactUsernames.map((username) => contactMap.get(username)?.displayName || username)
+        if (names.length <= 2) return names.join('、')
+        return `${names.slice(0, 2).join('、')} 等 ${names.length} 人`
+    }, [contacts, selectedContactUsernames])
+
+    const selectedContactUsernameSet = useMemo(() => (
+        new Set(selectedContactUsernames.map((username) => normalizeAccountId(username)))
+    ), [selectedContactUsernames])
+
+    const visiblePosts = useMemo(() => {
+        if (selectedContactUsernameSet.size === 0) return posts
+        return posts.filter((post) => selectedContactUsernameSet.has(normalizeAccountId(post.username)))
+    }, [posts, selectedContactUsernameSet])
+
     const myTimelineCount = useMemo(() => {
         if (resolvedCurrentUserContact?.postCountStatus === 'ready' && typeof resolvedCurrentUserContact.postCount === 'number') {
             return normalizePostCount(resolvedCurrentUserContact.postCount)
@@ -383,6 +429,10 @@ export default function SnsPage() {
             : overviewStatsStatus === 'loading' || contactsLoading
     )
 
+    const canStartExport = Boolean(exportFolder) && !isExporting && (
+        exportScope.kind === 'all' || exportScope.usernames.length > 0
+    )
+
     const openCurrentUserTimeline = useCallback(() => {
         if (!resolvedCurrentUserContact) return
         setAuthorTimelineTarget({
@@ -393,7 +443,11 @@ export default function SnsPage() {
     }, [currentUserProfile.avatarUrl, currentUserProfile.displayName, resolvedCurrentUserContact])
 
     const isDefaultViewNow = useCallback(() => {
-        return !searchKeywordRef.current.trim() && !jumpTargetDateRef.current
+        return (
+            !searchKeywordRef.current.trim() &&
+            !jumpTargetDateRef.current &&
+            selectedContactUsernamesRef.current.length === 0
+        )
     }, [])
 
     const ensureSnsCacheScopeKey = useCallback(async () => {
@@ -555,9 +609,23 @@ export default function SnsPage() {
 
     const exportDateRangeLabel = useMemo(() => getExportDateRangeLabel(exportDateRangeSelection), [exportDateRangeSelection])
 
+    const openExportDialog = useCallback((scope: SnsExportScope) => {
+        setExportScope(scope)
+        setExportResult(null)
+        setExportProgress(null)
+        setExportDateRangeSelection(createExportDateRangeSelectionFromPreset('all'))
+        setIsExportDateRangeDialogOpen(false)
+        setShowExportDialog(true)
+    }, [])
+
     const loadPosts = useCallback(async (options: { reset?: boolean, direction?: 'older' | 'newer' } = {}) => {
         const { reset = false, direction = 'older' } = options
-        if (loadingRef.current) return
+        if (loadingRef.current) {
+            if (reset) {
+                pendingResetFeedRef.current = true
+            }
+            return
+        }
 
         loadingRef.current = true
         if (direction === 'newer') setLoadingNewer(true)
@@ -565,13 +633,19 @@ export default function SnsPage() {
 
         try {
             const limit = 20
+            const currentSearchKeyword = searchKeywordRef.current
+            const currentJumpTargetDate = jumpTargetDateRef.current
+            const currentSelectedContactUsernames = selectedContactUsernamesRef.current
+            const selectedUsernames = currentSelectedContactUsernames.length > 0
+                ? [...currentSelectedContactUsernames]
+                : undefined
             let startTs: number | undefined = undefined
             let endTs: number | undefined = undefined
 
             if (reset) {
                 // If jumping to date, set endTs to end of that day
-                if (jumpTargetDate) {
-                    endTs = Math.floor(jumpTargetDate.getTime() / 1000) + 86399
+                if (currentJumpTargetDate) {
+                    endTs = Math.floor(currentJumpTargetDate.getTime() / 1000) + 86399
                 }
             } else if (direction === 'newer') {
                 const currentPosts = postsRef.current
@@ -581,8 +655,8 @@ export default function SnsPage() {
                     const result = await window.electronAPI.sns.getTimeline(
                         limit,
                         0,
-                        undefined,
-                        searchKeyword,
+                        selectedUsernames,
+                        currentSearchKeyword,
                         topTs + 1,
                         undefined
                     );
@@ -622,8 +696,8 @@ export default function SnsPage() {
             const result = await window.electronAPI.sns.getTimeline(
                 limit,
                 0,
-                undefined,
-                searchKeyword,
+                selectedUsernames,
+                currentSearchKeyword,
                 startTs, // default undefined
                 endTs
             )
@@ -637,7 +711,7 @@ export default function SnsPage() {
                     // Check for newer items above topTs
                     const topTs = result.timeline[0]?.createTime || 0;
                     if (topTs > 0) {
-                        const checkResult = await window.electronAPI.sns.getTimeline(1, 0, undefined, searchKeyword, topTs + 1, undefined);
+                        const checkResult = await window.electronAPI.sns.getTimeline(1, 0, selectedUsernames, currentSearchKeyword, topTs + 1, undefined);
                         setHasNewer(!!(checkResult.success && checkResult.timeline && checkResult.timeline.length > 0));
                     } else {
                         setHasNewer(false);
@@ -663,8 +737,12 @@ export default function SnsPage() {
             setLoading(false)
             setLoadingNewer(false)
             loadingRef.current = false
+            if (pendingResetFeedRef.current) {
+                pendingResetFeedRef.current = false
+                void loadPosts({ reset: true })
+            }
         }
-    }, [jumpTargetDate, persistSnsPageCache, searchKeyword])
+    }, [persistSnsPageCache])
 
     const stopContactsCountHydration = useCallback((resetProgress = false) => {
         contactsCountHydrationTokenRef.current += 1
@@ -728,9 +806,23 @@ export default function SnsPage() {
         })
         if (pendingTargets.length === 0) return
 
+        const taskId = registerBackgroundTask({
+            sourcePage: 'sns',
+            title: '朋友圈联系人计数补算',
+            detail: `正在补算 ${pendingTargets.length} 个联系人朋友圈条数`,
+            progressText: `${preResolved}/${totalTargets}`,
+            cancelable: true
+        })
+
         let normalizedCounts: Record<string, number> = {}
         try {
             const result = await window.electronAPI.sns.getUserPostCounts()
+            if (isBackgroundTaskCancelRequested(taskId)) {
+                finishBackgroundTask(taskId, 'canceled', {
+                    detail: '已停止后续加载，当前计数查询结束后不再继续分批写入'
+                })
+                return
+            }
             if (runToken !== contactsCountHydrationTokenRef.current) return
             if (result.success && result.counts) {
                 normalizedCounts = Object.fromEntries(
@@ -747,12 +839,28 @@ export default function SnsPage() {
             }
         } catch (error) {
             console.error('Failed to load contact post counts:', error)
+            finishBackgroundTask(taskId, 'failed', {
+                detail: String(error)
+            })
+            return
         }
 
         let resolved = preResolved
         let cursor = 0
         const applyBatch = () => {
             if (runToken !== contactsCountHydrationTokenRef.current) return
+            if (isBackgroundTaskCancelRequested(taskId)) {
+                finishBackgroundTask(taskId, 'canceled', {
+                    detail: `已停止后续加载，已完成 ${resolved}/${totalTargets}`
+                })
+                contactsCountBatchTimerRef.current = null
+                setContactsCountProgress({
+                    resolved,
+                    total: totalTargets,
+                    running: false
+                })
+                return
+            }
 
             const batch = pendingTargets.slice(cursor, cursor + CONTACT_COUNT_BATCH_SIZE)
             if (batch.length === 0) {
@@ -762,6 +870,10 @@ export default function SnsPage() {
                     running: false
                 })
                 contactsCountBatchTimerRef.current = null
+                finishBackgroundTask(taskId, 'completed', {
+                    detail: '联系人朋友圈条数补算完成',
+                    progressText: `${totalTargets}/${totalTargets}`
+                })
                 return
             }
 
@@ -789,6 +901,10 @@ export default function SnsPage() {
                 total: totalTargets,
                 running: resolved < totalTargets
             })
+            updateBackgroundTask(taskId, {
+                detail: `已完成 ${resolved}/${totalTargets} 个联系人朋友圈条数补算`,
+                progressText: `${resolved}/${totalTargets}`
+            })
 
             if (cursor < totalTargets) {
                 contactsCountBatchTimerRef.current = window.setTimeout(applyBatch, CONTACT_COUNT_SORT_DEBOUNCE_MS)
@@ -803,6 +919,13 @@ export default function SnsPage() {
     // Load Contacts（先按最近会话显示联系人，再异步统计朋友圈条数并增量排序）
     const loadContacts = useCallback(async () => {
         const requestToken = ++contactsLoadTokenRef.current
+        const taskId = registerBackgroundTask({
+            sourcePage: 'sns',
+            title: '朋友圈联系人列表加载',
+            detail: '准备读取联系人缓存与最近会话',
+            progressText: '初始化',
+            cancelable: true
+        })
         stopContactsCountHydration(true)
         setContactsLoading(true)
         try {
@@ -845,10 +968,20 @@ export default function SnsPage() {
                 })
             }
 
+            updateBackgroundTask(taskId, {
+                detail: '正在读取联系人与最近会话数据',
+                progressText: '联系人快照'
+            })
             const [contactsResult, sessionsResult] = await Promise.all([
                 window.electronAPI.chat.getContacts(),
                 window.electronAPI.chat.getSessions()
             ])
+            if (isBackgroundTaskCancelRequested(taskId)) {
+                finishBackgroundTask(taskId, 'canceled', {
+                    detail: '已停止后续加载，当前联系人查询结束后未继续补齐'
+                })
+                return
+            }
             const contactMap = new Map<string, Contact>()
             const sessionTimestampMap = new Map<string, number>()
 
@@ -904,7 +1037,17 @@ export default function SnsPage() {
 
             // 用 enrichSessionsContactInfo 统一补充头像和显示名
             if (allUsernames.length > 0) {
+                updateBackgroundTask(taskId, {
+                    detail: '正在补齐联系人显示名与头像',
+                    progressText: '联系人补齐'
+                })
                 const enriched = await window.electronAPI.chat.enrichSessionsContactInfo(allUsernames)
+                if (isBackgroundTaskCancelRequested(taskId)) {
+                    finishBackgroundTask(taskId, 'canceled', {
+                        detail: '已停止后续加载，联系人补齐未继续写入'
+                    })
+                    return
+                }
                 if (enriched.success && enriched.contacts) {
                     contactsList = contactsList.map((contact) => {
                         const extra = enriched.contacts?.[contact.username]
@@ -931,10 +1074,17 @@ export default function SnsPage() {
                     })
                 }
             }
+            finishBackgroundTask(taskId, 'completed', {
+                detail: `朋友圈联系人列表加载完成，共 ${contactsList.length} 人`,
+                progressText: `${contactsList.length} 人`
+            })
         } catch (error) {
             if (requestToken !== contactsLoadTokenRef.current) return
             console.error('Failed to load contacts:', error)
             stopContactsCountHydration(true)
+            finishBackgroundTask(taskId, 'failed', {
+                detail: String(error)
+            })
         } finally {
             if (requestToken === contactsLoadTokenRef.current) {
                 setContactsLoading(false)
@@ -962,6 +1112,23 @@ export default function SnsPage() {
         })
     }, [])
 
+    const toggleContactSelected = useCallback((contact: Contact) => {
+        setSelectedContactUsernames((prev) => (
+            prev.includes(contact.username)
+                ? prev.filter((username) => username !== contact.username)
+                : [...prev, contact.username]
+        ))
+    }, [])
+
+    const clearSelectedContacts = useCallback(() => {
+        setSelectedContactUsernames([])
+    }, [])
+
+    const openSelectedContactsExport = useCallback(() => {
+        if (selectedContactUsernames.length === 0) return
+        openExportDialog({ kind: 'selected', usernames: [...selectedContactUsernames] })
+    }, [openExportDialog, selectedContactUsernames])
+
     const handlePostDelete = useCallback((postId: string, username: string) => {
         setPosts(prev => {
             const next = prev.filter(p => p.id !== postId)
@@ -1029,6 +1196,7 @@ export default function SnsPage() {
             stopContactsCountHydration(true)
             setContacts([])
             setPosts([]); setHasMore(true); setHasNewer(false);
+            setSelectedContactUsernames([])
             setSearchKeyword(''); setJumpTargetDate(undefined);
             void hydrateSnsPageCache()
             loadContacts();
@@ -1046,6 +1214,21 @@ export default function SnsPage() {
         return () => clearTimeout(timer)
     }, [searchKeyword, jumpTargetDate, loadPosts])
 
+    const selectedContactUsernamesKey = useMemo(
+        () => selectedContactUsernames.join('||'),
+        [selectedContactUsernames]
+    )
+
+    const hasInitializedSelectedFeedFilterRef = useRef(false)
+
+    useEffect(() => {
+        if (!hasInitializedSelectedFeedFilterRef.current) {
+            hasInitializedSelectedFeedFilterRef.current = true
+            return
+        }
+        loadPosts({ reset: true })
+    }, [loadPosts, selectedContactUsernamesKey])
+
     const handleScroll = (e: React.UIEvent<HTMLDivElement>) => {
         const { scrollTop, clientHeight, scrollHeight } = e.currentTarget
         if (scrollHeight - scrollTop - clientHeight < 400 && hasMore && !loading && !loadingNewer) {
@@ -1186,13 +1369,7 @@ export default function SnsPage() {
                                 <Shield size={20} />
                             </button>
                             <button
-                                onClick={() => {
-                                    setExportResult(null)
-                                    setExportProgress(null)
-                                    setExportDateRangeSelection(createExportDateRangeSelectionFromPreset('all'))
-                                    setIsExportDateRangeDialogOpen(false)
-                                    setShowExportDialog(true)
-                                }}
+                                onClick={() => openExportDialog({ kind: 'all' })}
                                 className="icon-btn export-btn"
                                 title="导出朋友圈"
                             >
@@ -1214,6 +1391,20 @@ export default function SnsPage() {
                         </div>
                     </div>
 
+                    {selectedContactUsernames.length > 0 && (
+                        <div className="feed-contact-filter-bar">
+                            <span className="feed-contact-filter-label">仅显示</span>
+                            <span className="feed-contact-filter-summary">{selectedFeedContactsSummary} 的动态</span>
+                            <button
+                                type="button"
+                                className="feed-contact-filter-clear"
+                                onClick={clearSelectedContacts}
+                            >
+                                清空筛选
+                            </button>
+                        </div>
+                    )}
+
                     <div className="sns-posts-scroll" onScroll={handleScroll} onWheel={handleWheel} ref={postsContainerRef}>
                         {loadingNewer && (
                             <div className="status-indicator loading-newer">
@@ -1229,7 +1420,7 @@ export default function SnsPage() {
                         )}
 
                         <div className="posts-list">
-                            {posts.map(post => (
+                            {visiblePosts.map(post => (
                                 <SnsPostItem
                                     key={post.id}
                                     post={{ ...post, isProtected: triggerInstalled === true }}
@@ -1247,7 +1438,7 @@ export default function SnsPage() {
                             ))}
                         </div>
 
-                        {loading && posts.length === 0 && (
+                        {loading && visiblePosts.length === 0 && (
                             <div className="initial-loading">
                                 <div className="loading-pulse">
                                     <div className="pulse-circle"></div>
@@ -1256,24 +1447,26 @@ export default function SnsPage() {
                             </div>
                         )}
 
-                        {loading && posts.length > 0 && (
+                        {loading && visiblePosts.length > 0 && (
                             <div className="status-indicator loading-more">
                                 <RefreshCw size={16} className="spinning" />
                                 <span>正在加载更多...</span>
                             </div>
                         )}
 
-                        {!hasMore && posts.length > 0 && (
+                        {!hasMore && visiblePosts.length > 0 && (
                             <div className="status-indicator no-more">或许过往已无可溯洄，但好在还有可以与你相遇的明天</div>
                         )}
 
-                        {!loading && posts.length === 0 && (
+                        {!loading && visiblePosts.length === 0 && (
                             <div className="no-results">
                                 <div className="no-results-icon"><Search size={48} /></div>
                                 <p>未找到相关动态</p>
-                                {(searchKeyword || jumpTargetDate) && (
+                                {(searchKeyword || jumpTargetDate || selectedContactUsernames.length > 0) && (
                                     <button onClick={() => {
-                                        setSearchKeyword(''); setJumpTargetDate(undefined);
+                                        setSearchKeyword('')
+                                        setJumpTargetDate(undefined)
+                                        clearSelectedContacts()
                                     }} className="reset-inline">
                                         重置筛选条件
                                     </button>
@@ -1299,7 +1492,12 @@ export default function SnsPage() {
                 setContactSearch={setContactSearch}
                 loading={contactsLoading}
                 contactsCountProgress={contactsCountProgress}
+                selectedContactUsernames={selectedContactUsernames}
+                activeContactUsername={authorTimelineTarget?.username}
                 onOpenContactTimeline={openContactTimeline}
+                onToggleContactSelected={toggleContactSelected}
+                onClearSelectedContacts={clearSelectedContacts}
+                onExportSelectedContacts={openSelectedContactsExport}
             />
 
             {/* Dialogs and Overlays */}
@@ -1444,9 +1642,12 @@ export default function SnsPage() {
 
                         <div className="export-dialog-body">
                             {/* 筛选条件提示 */}
-                            {searchKeyword && (
+                            {(searchKeyword || exportScope.kind === 'selected') && (
                                 <div className="export-filter-info">
-                                    <span className="filter-badge">筛选导出</span>
+                                    <span className="filter-badge">导出范围</span>
+                                    {exportScope.kind === 'selected' && (
+                                        <span className="filter-tag">联系人: {exportSelectedContactsSummary}</span>
+                                    )}
                                     {searchKeyword && <span className="filter-tag">关键词: "{searchKeyword}"</span>}
                                 </div>
                             )}
@@ -1572,7 +1773,7 @@ export default function SnsPage() {
                                     {/* 同步提示 */}
                                     <div className="export-sync-hint">
                                         <Info size={14} />
-                                        <span>将同步主页面的关键词搜索</span>
+                                        <span>{exportScope.kind === 'selected' ? '将同步主页面的关键词搜索，并仅导出所选联系人' : '将同步主页面的关键词搜索'}</span>
                                     </div>
 
                                     {/* 进度条 */}
@@ -1599,7 +1800,7 @@ export default function SnsPage() {
                                         </button>
                                         <button
                                             className="export-start-btn"
-                                            disabled={!exportFolder || isExporting}
+                                            disabled={!canStartExport}
                                             onClick={async () => {
                                                 setIsExporting(true)
                                                 setExportProgress({ current: 0, total: 0, status: '准备导出...' })
@@ -1614,6 +1815,7 @@ export default function SnsPage() {
                                                     const result = await window.electronAPI.sns.exportTimeline({
                                                         outputDir: exportFolder,
                                                         format: exportFormat,
+                                                        usernames: exportScope.kind === 'selected' ? exportScope.usernames : undefined,
                                                         keyword: searchKeyword || undefined,
                                                         exportImages,
                                                         exportLivePhotos,
diff --git a/src/services/backgroundTaskMonitor.ts b/src/services/backgroundTaskMonitor.ts
new file mode 100644
index 0000000..2b41f6d
--- /dev/null
+++ b/src/services/backgroundTaskMonitor.ts
@@ -0,0 +1,149 @@
+import type {
+  BackgroundTaskInput,
+  BackgroundTaskRecord,
+  BackgroundTaskStatus,
+  BackgroundTaskUpdate
+} from '../types/backgroundTask'
+
+type BackgroundTaskListener = (tasks: BackgroundTaskRecord[]) => void
+
+const tasks = new Map<string, BackgroundTaskRecord>()
+const cancelHandlers = new Map<string, () => void | Promise<void>>()
+const listeners = new Set<BackgroundTaskListener>()
+let taskSequence = 0
+
+const ACTIVE_STATUSES = new Set<BackgroundTaskStatus>(['running', 'cancel_requested'])
+const MAX_SETTLED_TASKS = 24
+
+const buildTaskId = (): string => {
+  taskSequence += 1
+  return `bg-task-${Date.now()}-${taskSequence}`
+}
+
+const notifyListeners = () => {
+  const snapshot = getBackgroundTaskSnapshot()
+  for (const listener of listeners) {
+    listener(snapshot)
+  }
+}
+
+const pruneSettledTasks = () => {
+  const settledTasks = [...tasks.values()]
+    .filter(task => !ACTIVE_STATUSES.has(task.status))
+    .sort((a, b) => (b.finishedAt || b.updatedAt) - (a.finishedAt || a.updatedAt))
+
+  for (const staleTask of settledTasks.slice(MAX_SETTLED_TASKS)) {
+    tasks.delete(staleTask.id)
+  }
+}
+
+export const getBackgroundTaskSnapshot = (): BackgroundTaskRecord[] => (
+  [...tasks.values()].sort((a, b) => {
+    const aActive = ACTIVE_STATUSES.has(a.status) ? 1 : 0
+    const bActive = ACTIVE_STATUSES.has(b.status) ? 1 : 0
+    if (aActive !== bActive) return bActive - aActive
+    return b.updatedAt - a.updatedAt
+  })
+)
+
+export const subscribeBackgroundTasks = (listener: BackgroundTaskListener): (() => void) => {
+  listeners.add(listener)
+  listener(getBackgroundTaskSnapshot())
+  return () => {
+    listeners.delete(listener)
+  }
+}
+
+export const registerBackgroundTask = (input: BackgroundTaskInput): string => {
+  const now = Date.now()
+  const taskId = buildTaskId()
+  tasks.set(taskId, {
+    id: taskId,
+    sourcePage: input.sourcePage,
+    title: input.title,
+    detail: input.detail,
+    progressText: input.progressText,
+    cancelable: input.cancelable !== false,
+    cancelRequested: false,
+    status: 'running',
+    startedAt: now,
+    updatedAt: now
+  })
+  if (input.onCancel) {
+    cancelHandlers.set(taskId, input.onCancel)
+  }
+  pruneSettledTasks()
+  notifyListeners()
+  return taskId
+}
+
+export const updateBackgroundTask = (taskId: string, patch: BackgroundTaskUpdate): void => {
+  const existing = tasks.get(taskId)
+  if (!existing) return
+  const nextStatus = patch.status || existing.status
+  const nextUpdatedAt = Date.now()
+  tasks.set(taskId, {
+    ...existing,
+    ...patch,
+    status: nextStatus,
+    updatedAt: nextUpdatedAt,
+    finishedAt: ACTIVE_STATUSES.has(nextStatus) ? undefined : (existing.finishedAt || nextUpdatedAt)
+  })
+  pruneSettledTasks()
+  notifyListeners()
+}
+
+export const finishBackgroundTask = (
+  taskId: string,
+  status: Extract<BackgroundTaskStatus, 'completed' | 'failed' | 'canceled'>,
+  patch?: Omit<BackgroundTaskUpdate, 'status'>
+): void => {
+  const existing = tasks.get(taskId)
+  if (!existing) return
+  const now = Date.now()
+  tasks.set(taskId, {
+    ...existing,
+    ...patch,
+    status,
+    updatedAt: now,
+    finishedAt: now,
+    cancelRequested: status === 'canceled' ? true : existing.cancelRequested
+  })
+  cancelHandlers.delete(taskId)
+  pruneSettledTasks()
+  notifyListeners()
+}
+
+export const requestCancelBackgroundTask = (taskId: string): boolean => {
+  const existing = tasks.get(taskId)
+  if (!existing || !existing.cancelable || !ACTIVE_STATUSES.has(existing.status)) return false
+  tasks.set(taskId, {
+    ...existing,
+    status: 'cancel_requested',
+    cancelRequested: true,
+    detail: existing.detail || '停止请求已发出，当前查询完成后会结束后续加载',
+    updatedAt: Date.now()
+  })
+  const cancelHandler = cancelHandlers.get(taskId)
+  if (cancelHandler) {
+    void Promise.resolve(cancelHandler()).catch(() => {})
+  }
+  notifyListeners()
+  return true
+}
+
+export const requestCancelBackgroundTasks = (predicate: (task: BackgroundTaskRecord) => boolean): number => {
+  let canceledCount = 0
+  for (const task of tasks.values()) {
+    if (!predicate(task)) continue
+    if (requestCancelBackgroundTask(task.id)) {
+      canceledCount += 1
+    }
+  }
+  return canceledCount
+}
+
+export const isBackgroundTaskCancelRequested = (taskId: string): boolean => {
+  const task = tasks.get(taskId)
+  return Boolean(task?.cancelRequested)
+}
diff --git a/src/types/backgroundTask.ts b/src/types/backgroundTask.ts
new file mode 100644
index 0000000..df8315e
--- /dev/null
+++ b/src/types/backgroundTask.ts
@@ -0,0 +1,46 @@
+export type BackgroundTaskSourcePage =
+  | 'export'
+  | 'chat'
+  | 'analytics'
+  | 'sns'
+  | 'groupAnalytics'
+  | 'annualReport'
+  | 'other'
+
+export type BackgroundTaskStatus =
+  | 'running'
+  | 'cancel_requested'
+  | 'completed'
+  | 'failed'
+  | 'canceled'
+
+export interface BackgroundTaskRecord {
+  id: string
+  sourcePage: BackgroundTaskSourcePage
+  title: string
+  detail?: string
+  progressText?: string
+  cancelable: boolean
+  cancelRequested: boolean
+  status: BackgroundTaskStatus
+  startedAt: number
+  updatedAt: number
+  finishedAt?: number
+}
+
+export interface BackgroundTaskInput {
+  sourcePage: BackgroundTaskSourcePage
+  title: string
+  detail?: string
+  progressText?: string
+  cancelable?: boolean
+  onCancel?: () => void | Promise<void>
+}
+
+export interface BackgroundTaskUpdate {
+  title?: string
+  detail?: string
+  progressText?: string
+  status?: BackgroundTaskStatus
+  cancelable?: boolean
+}