Merge pull request #4 from 5xiao0qing5/codex/add-txt-export-feature-with-configurable-options

完成未实现的 TXT 导出功能

.github/workflows/release.yml

@@ -32,51 +32,20 @@ jobs:
         run: |
           VERSION=${GITHUB_REF_NAME#v}
           echo "Syncing package.json version to $VERSION"
-          npm version $VERSION --no-git-tag-version
+          npm version $VERSION --no-git-tag-version --allow-same-version
 
       - name: Build Frontend & Type Check
         run: |
           npx tsc
           npx vite build
 
-      - name: Build Changelog
+      - name: Inject Configuration
-        id: build_changelog
-        uses: mikepenz/release-changelog-builder-action@v4
-        with:
-          outputFile: "release-notes.md"
-          configurationJson: |
-            {
-              "template": "# v${{ github.ref_name }} 更新日志\n\n{{CHANGELOG}}\n\n---\n> 此更新由系统自动构建",
-              "categories": [
-                {
-                  "title": "## 新功能",
-                  "filter": { "pattern": "^feat.*:.*", "flags": "i" }
-                },
-                {
-                  "title": "## 修复",
-                  "filter": { "pattern": "^fix.*:.*", "flags": "i" }
-                },
-                {
-                  "title": "## 性能与维护",
-                  "filter": { "pattern": "^(chore|docs|perf|refactor|ci|style|test).*:.*", "flags": "i" }
-                }
-              ],
-              "ignore_labels": [],
-              "commitMode": true,
-              "empty_summary": "## 更新详情\n- 常规代码优化与维护"
-            }
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Check Changelog Content
         shell: bash
         run: |
-          echo "=== RELEASE NOTES CONTENT START ==="
+          npm pkg set build.releaseInfo.releaseNotes=$'仅适配微信 4.0 及以上版本\n\n修复了一些已知问题\n\n详情前往 Telegram 群查看'
-          cat release-notes.md
-          echo "=== RELEASE NOTES CONTENT END ==="
 
       - name: Package and Publish
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          npx electron-builder --publish always -c.releaseInfo.releaseNotesFile=release-notes.md
+          npx electron-builder --publish always

README.md

@@ -28,6 +28,14 @@ WeFlow 是一个**完全本地**的微信**实时**聊天记录查看、分析
 > [!TIP]
 > 如果导出聊天记录后，想深入分析聊天内容可以试试 [ChatLab](https://chatlab.fun/)
 
+# 加入微信交流群
+
+> 🎉 扫码加入微信群，与其他 WeFlow 用户一起交流问题和使用心得。
+
+<p align="center">
+  <img src="2wm.png" alt="WeFlow 微信交流群二维码" width="220">
+</p>
+
 ## 主要功能
 
 - 本地实时查看聊天记录
@@ -36,6 +44,9 @@ WeFlow 是一个**完全本地**的微信**实时**聊天记录查看、分析
 - 导出聊天记录为 HTML 等格式
 - 本地解密与数据库管理
 
+> [!NOTE]
+> ⚠️ 本工具仅适配微信 **4.0 及以上**版本，请确保你的微信版本符合要求
+
 ## 快速开始
 
 若你只想使用成品版本，可前往 Release 下载并安装。

electron/main.ts

@@ -1,6 +1,6 @@
-import { app, BrowserWindow, ipcMain, nativeTheme } from 'electron'
+import { app, BrowserWindow, ipcMain, nativeTheme, session } from 'electron'
 import { Worker } from 'worker_threads'
-import { join } from 'path'
+import { join, dirname } from 'path'
 import { autoUpdater } from 'electron-updater'
 import { readFile, writeFile, mkdir } from 'fs/promises'
 import { existsSync } from 'fs'
@@ -13,10 +13,11 @@ import { imagePreloadService } from './services/imagePreloadService'
 import { analyticsService } from './services/analyticsService'
 import { groupAnalyticsService } from './services/groupAnalyticsService'
 import { annualReportService } from './services/annualReportService'
-import { exportService, ExportOptions } from './services/exportService'
+import { exportService, ExportOptions, ExportProgress } from './services/exportService'
 import { KeyService } from './services/keyService'
 import { voiceTranscribeService } from './services/voiceTranscribeService'
 import { videoService } from './services/videoService'
+import { snsService } from './services/snsService'
 
 
 // 配置自动更新
@@ -28,6 +29,47 @@ const AUTO_UPDATE_ENABLED =
   process.env.AUTO_UPDATE_ENABLED === '1' ||
   (process.env.AUTO_UPDATE_ENABLED == null && !process.env.VITE_DEV_SERVER_URL)
 
+// 使用白名单过滤 PATH，避免被第三方目录中的旧版 VC++ 运行库劫持。
+// 仅保留系统目录（Windows/System32/SysWOW64）和应用自身目录（可执行目录、resources）。
+function sanitizePathEnv() {
+  // 开发模式不做裁剪，避免影响本地工具链
+  if (process.env.VITE_DEV_SERVER_URL) return
+
+  const rawPath = process.env.PATH || process.env.Path
+  if (!rawPath) return
+
+  const sep = process.platform === 'win32' ? ';' : ':'
+  const parts = rawPath.split(sep).filter(Boolean)
+
+  const systemRoot = process.env.SystemRoot || process.env.WINDIR || ''
+  const safePrefixes = [
+    systemRoot,
+    systemRoot ? join(systemRoot, 'System32') : '',
+    systemRoot ? join(systemRoot, 'SysWOW64') : '',
+    dirname(process.execPath),
+    process.resourcesPath,
+    join(process.resourcesPath || '', 'resources')
+  ].filter(Boolean)
+
+  const normalize = (p: string) => p.replace(/\\/g, '/').toLowerCase()
+  const isSafe = (p: string) => {
+    const np = normalize(p)
+    return safePrefixes.some((prefix) => np.startsWith(normalize(prefix)))
+  }
+
+  const filtered = parts.filter(isSafe)
+  if (filtered.length !== parts.length) {
+    const removed = parts.filter((p) => !isSafe(p))
+    console.warn('[WeFlow] 使用白名单裁剪 PATH，移除目录:', removed)
+    const nextPath = filtered.join(sep)
+    process.env.PATH = nextPath
+    process.env.Path = nextPath
+  }
+}
+
+// 启动时立即清理 PATH，后续创建的 worker 也能继承安全的环境
+sanitizePathEnv()
+
 // 单例服务
 let configService: ConfigService | null = null
 
@@ -573,8 +615,8 @@ function registerIpcHandlers() {
     return chatService.enrichSessionsContactInfo(usernames)
   })
 
-  ipcMain.handle('chat:getMessages', async (_, sessionId: string, offset?: number, limit?: number) => {
+  ipcMain.handle('chat:getMessages', async (_, sessionId: string, offset?: number, limit?: number, startTime?: number, endTime?: number, ascending?: boolean) => {
-    return chatService.getMessages(sessionId, offset, limit)
+    return chatService.getMessages(sessionId, offset, limit, startTime, endTime, ascending)
   })
 
   ipcMain.handle('chat:getLatestMessages', async (_, sessionId: string, limit?: number) => {
@@ -631,6 +673,10 @@ function registerIpcHandlers() {
     return chatService.getMessageById(sessionId, localId)
   })
 
+  ipcMain.handle('sns:getTimeline', async (_, limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number) => {
+    return snsService.getTimeline(limit, offset, usernames, keyword, startTime, endTime)
+  })
+
   // 私聊克隆
 
 
@@ -646,8 +692,13 @@ function registerIpcHandlers() {
   })
 
   // 导出相关
-  ipcMain.handle('export:exportSessions', async (_, sessionIds: string[], outputDir: string, options: ExportOptions) => {
+  ipcMain.handle('export:exportSessions', async (event, sessionIds: string[], outputDir: string, options: ExportOptions) => {
-    return exportService.exportSessions(sessionIds, outputDir, options)
+    const onProgress = (progress: ExportProgress) => {
+      if (!event.sender.isDestroyed()) {
+        event.sender.send('export:progress', progress)
+      }
+    }
+    return exportService.exportSessions(sessionIds, outputDir, options, onProgress)
   })
 
   ipcMain.handle('export:exportSession', async (_, sessionId: string, outputPath: string, options: ExportOptions) => {
@@ -931,6 +982,17 @@ app.whenReady().then(() => {
     createOnboardingWindow()
   }
 
+  // 解决朋友圈图片无法加载问题（添加 Referer）
+  session.defaultSession.webRequest.onBeforeSendHeaders(
+    {
+      urls: ['*://*.qpic.cn/*', '*://*.wx.qq.com/*']
+    },
+    (details, callback) => {
+      details.requestHeaders['Referer'] = 'https://wx.qq.com/'
+      callback({ requestHeaders: details.requestHeaders })
+    }
+  )
+
   // 启动时检测更新
   checkForUpdatesOnStartup()
 

electron/preload.ts

@@ -98,8 +98,8 @@ contextBridge.exposeInMainWorld('electronAPI', {
     getSessions: () => ipcRenderer.invoke('chat:getSessions'),
     enrichSessionsContactInfo: (usernames: string[]) =>
       ipcRenderer.invoke('chat:enrichSessionsContactInfo', usernames),
-    getMessages: (sessionId: string, offset?: number, limit?: number) =>
+    getMessages: (sessionId: string, offset?: number, limit?: number, startTime?: number, endTime?: number, ascending?: boolean) =>
-      ipcRenderer.invoke('chat:getMessages', sessionId, offset, limit),
+      ipcRenderer.invoke('chat:getMessages', sessionId, offset, limit, startTime, endTime, ascending),
     getLatestMessages: (sessionId: string, limit?: number) =>
       ipcRenderer.invoke('chat:getLatestMessages', sessionId, limit),
     getContact: (username: string) => ipcRenderer.invoke('chat:getContact', username),
@@ -191,7 +191,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
     exportSessions: (sessionIds: string[], outputDir: string, options: any) =>
       ipcRenderer.invoke('export:exportSessions', sessionIds, outputDir, options),
     exportSession: (sessionId: string, outputPath: string, options: any) =>
-      ipcRenderer.invoke('export:exportSession', sessionId, outputPath, options)
+      ipcRenderer.invoke('export:exportSession', sessionId, outputPath, options),
+    onProgress: (callback: (payload: { current: number; total: number; currentSession: string; phase: string }) => void) => {
+      ipcRenderer.on('export:progress', (_, payload) => callback(payload))
+      return () => ipcRenderer.removeAllListeners('export:progress')
+    }
   },
 
   whisper: {
@@ -203,5 +207,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
       ipcRenderer.on('whisper:downloadProgress', (_, payload) => callback(payload))
       return () => ipcRenderer.removeAllListeners('whisper:downloadProgress')
     }
+  },
+
+  // 朋友圈
+  sns: {
+    getTimeline: (limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number) =>
+      ipcRenderer.invoke('sns:getTimeline', limit, offset, usernames, keyword, startTime, endTime)
   }
 })

electron/services/chatService.ts

@@ -74,7 +74,7 @@ const emojiDownloading: Map<string, Promise<string | null>> = new Map()
 class ChatService {
   private configService: ConfigService
   private connected = false
-  private messageCursors: Map<string, { cursor: number; fetched: number; batchSize: number }> = new Map()
+  private messageCursors: Map<string, { cursor: number; fetched: number; batchSize: number; startTime?: number; endTime?: number; ascending?: boolean }> = new Map()
   private readonly messageBatchDefault = 50
   private avatarCache: Map<string, ContactCacheEntry>
   private readonly avatarCacheTtlMs = 10 * 60 * 1000
@@ -326,7 +326,11 @@ class ChatService {
       // 检查缓存
       for (const username of usernames) {
         const cached = this.avatarCache.get(username)
-        if (cached && now - cached.updatedAt < this.avatarCacheTtlMs) {
+        // 如果缓存有效且有头像，直接使用；如果没有头像，也需要重新尝试获取
+        // 额外检查：如果头像是无效的 hex 格式（以 ffd8 开头），也需要重新获取
+        const isValidAvatar = cached?.avatarUrl && 
+          !cached.avatarUrl.includes('base64,ffd8') // 检测错误的 hex 格式
+        if (cached && now - cached.updatedAt < this.avatarCacheTtlMs && isValidAvatar) {
           result[username] = {
             displayName: cached.displayName,
             avatarUrl: cached.avatarUrl
@@ -343,9 +347,17 @@ class ChatService {
           wcdbService.getAvatarUrls(missing)
         ])
 
+        // 收集没有头像 URL 的用户名
+        const missingAvatars: string[] = []
+
         for (const username of missing) {
           const displayName = displayNames.success && displayNames.map ? displayNames.map[username] : undefined
-          const avatarUrl = avatarUrls.success && avatarUrls.map ? avatarUrls.map[username] : undefined
+          let avatarUrl = avatarUrls.success && avatarUrls.map ? avatarUrls.map[username] : undefined
+
+          // 如果没有头像 URL，记录下来稍后从 head_image.db 获取
+          if (!avatarUrl) {
+            missingAvatars.push(username)
+          }
 
           const cacheEntry: ContactCacheEntry = {
             displayName: displayName || username,
@@ -357,6 +369,23 @@ class ChatService {
           this.avatarCache.set(username, cacheEntry)
           updatedEntries[username] = cacheEntry
         }
+
+        // 从 head_image.db 获取缺失的头像
+        if (missingAvatars.length > 0) {
+          const headImageAvatars = await this.getAvatarsFromHeadImageDb(missingAvatars)
+          for (const username of missingAvatars) {
+            const avatarUrl = headImageAvatars[username]
+            if (avatarUrl) {
+              result[username].avatarUrl = avatarUrl
+              const cached = this.avatarCache.get(username)
+              if (cached) {
+                cached.avatarUrl = avatarUrl
+                updatedEntries[username] = cached
+              }
+            }
+          }
+        }
+
         if (Object.keys(updatedEntries).length > 0) {
           this.contactCacheService.setEntries(updatedEntries)
         }
@@ -368,6 +397,81 @@ class ChatService {
     }
   }
 
+  /**
+   * 从 head_image.db 批量获取头像（转换为 base64 data URL）
+   */
+  private async getAvatarsFromHeadImageDb(usernames: string[]): Promise<Record<string, string>> {
+    const result: Record<string, string> = {}
+    if (usernames.length === 0) return result
+
+    try {
+      const dbPath = this.configService.get('dbPath')
+      const wxid = this.configService.get('myWxid')
+      if (!dbPath || !wxid) return result
+
+      const accountDir = this.resolveAccountDir(dbPath, wxid)
+      if (!accountDir) return result
+
+      // head_image.db 可能在不同位置
+      const headImageDbPaths = [
+        join(accountDir, 'db_storage', 'head_image', 'head_image.db'),
+        join(accountDir, 'db_storage', 'head_image.db'),
+        join(accountDir, 'head_image.db')
+      ]
+
+      let headImageDbPath: string | null = null
+      for (const path of headImageDbPaths) {
+        if (existsSync(path)) {
+          headImageDbPath = path
+          break
+        }
+      }
+
+      if (!headImageDbPath) return result
+
+      // 使用 wcdbService.execQuery 查询加密的 head_image.db
+      for (const username of usernames) {
+        try {
+          const escapedUsername = username.replace(/'/g, "''")
+          const queryResult = await wcdbService.execQuery(
+            'media',
+            headImageDbPath,
+            `SELECT image_buffer FROM head_image WHERE username = '${escapedUsername}' LIMIT 1`
+          )
+
+          if (queryResult.success && queryResult.rows && queryResult.rows.length > 0) {
+            const row = queryResult.rows[0] as any
+            if (row?.image_buffer) {
+              let base64Data: string
+              if (typeof row.image_buffer === 'string') {
+                // WCDB 返回的 BLOB 是十六进制字符串，需要转换为 base64
+                if (row.image_buffer.toLowerCase().startsWith('ffd8')) {
+                  const buffer = Buffer.from(row.image_buffer, 'hex')
+                  base64Data = buffer.toString('base64')
+                } else {
+                  base64Data = row.image_buffer
+                }
+              } else if (Buffer.isBuffer(row.image_buffer)) {
+                base64Data = row.image_buffer.toString('base64')
+              } else if (Array.isArray(row.image_buffer)) {
+                base64Data = Buffer.from(row.image_buffer).toString('base64')
+              } else {
+                continue
+              }
+              result[username] = `data:image/jpeg;base64,${base64Data}`
+            }
+          }
+        } catch {
+          // 静默处理单个用户的错误
+        }
+      }
+    } catch (e) {
+      console.error('从 head_image.db 获取头像失败:', e)
+    }
+
+    return result
+  }
+
   /**
    * 补充联系人信息（私有方法，保持向后兼容）
    */
@@ -396,7 +500,10 @@ class ChatService {
   async getMessages(
     sessionId: string,
     offset: number = 0,
-    limit: number = 50
+    limit: number = 50,
+    startTime: number = 0,
+    endTime: number = 0,
+    ascending: boolean = false
   ): Promise<{ success: boolean; messages?: Message[]; hasMore?: boolean; error?: string }> {
     try {
       const connectResult = await this.ensureConnected()
@@ -411,7 +518,14 @@ class ChatService {
       // 1. 没有游标状态
       // 2. offset 为 0 (重新加载会话)
       // 3. batchSize 改变
-      const needNewCursor = !state || offset === 0 || state.batchSize !== batchSize
+      // 4. startTime 改变
+      // 5. ascending 改变
+      const needNewCursor = !state ||
+        offset === 0 ||
+        state.batchSize !== batchSize ||
+        state.startTime !== startTime ||
+        state.endTime !== endTime ||
+        state.ascending !== ascending
 
       if (needNewCursor) {
         // 关闭旧游标
@@ -424,13 +538,16 @@ class ChatService {
         }
 
         // 创建新游标
-        const cursorResult = await wcdbService.openMessageCursor(sessionId, batchSize, false, 0, 0)
+        // 注意：WeFlow 数据库中的 create_time 是以秒为单位的
+        const beginTimestamp = startTime > 10000000000 ? Math.floor(startTime / 1000) : startTime
+        const endTimestamp = endTime > 10000000000 ? Math.floor(endTime / 1000) : endTime
+        const cursorResult = await wcdbService.openMessageCursor(sessionId, batchSize, ascending, beginTimestamp, endTimestamp)
         if (!cursorResult.success || !cursorResult.cursor) {
           console.error('[ChatService] 打开消息游标失败:', cursorResult.error)
           return { success: false, error: cursorResult.error || '打开消息游标失败' }
         }
 
-        state = { cursor: cursorResult.cursor, fetched: 0, batchSize }
+        state = { cursor: cursorResult.cursor, fetched: 0, batchSize, startTime, endTime, ascending }
         this.messageCursors.set(sessionId, state)
 
         // 如果需要跳过消息(offset > 0),逐批获取但不返回
@@ -1706,7 +1823,9 @@ class ChatService {
       const connectResult = await this.ensureConnected()
       if (!connectResult.success) return null
       const cached = this.avatarCache.get(username)
-      if (cached && cached.avatarUrl && Date.now() - cached.updatedAt < this.avatarCacheTtlMs) {
+      // 检查缓存是否有效，且头像不是错误的 hex 格式
+      const isValidAvatar = cached?.avatarUrl && !cached.avatarUrl.includes('base64,ffd8')
+      if (cached && isValidAvatar && Date.now() - cached.updatedAt < this.avatarCacheTtlMs) {
         return { avatarUrl: cached.avatarUrl, displayName: cached.displayName }
       }
 
@@ -2979,10 +3098,26 @@ class ChatService {
 
   private resolveAccountDir(dbPath: string, wxid: string): string | null {
     const normalized = dbPath.replace(/[\\\\/]+$/, '')
+    
+    // 如果 dbPath 本身指向 db_storage 目录下的文件（如某个 .db 文件）
+    // 则向上回溯到账号目录
+    if (basename(normalized).toLowerCase() === 'db_storage') {
+      return dirname(normalized)
+    }
     const dir = dirname(normalized)
-    if (basename(normalized).toLowerCase() === 'db_storage') return dir
+    if (basename(dir).toLowerCase() === 'db_storage') {
-    if (basename(dir).toLowerCase() === 'db_storage') return dirname(dir)
+      return dirname(dir)
-    return dir // 兜底
+    }
+    
+    // 否则，dbPath 应该是数据库根目录（如 xwechat_files）
+    // 账号目录应该是 {dbPath}/{wxid}
+    const accountDirWithWxid = join(normalized, wxid)
+    if (existsSync(accountDirWithWxid)) {
+      return accountDirWithWxid
+    }
+    
+    // 兜底：返回 dbPath 本身（可能 dbPath 已经是账号目录）
+    return normalized
   }
 
   private async findDatFile(accountDir: string, baseName: string, sessionId?: string): Promise<string | null> {

electron/services/contactCacheService.ts

@@ -34,6 +34,14 @@ export class ContactCacheService {
       const raw = readFileSync(this.cacheFilePath, 'utf8')
       const parsed = JSON.parse(raw)
       if (parsed && typeof parsed === 'object') {
+        // 清除无效的头像数据（hex 格式而非正确的 base64）
+        for (const key of Object.keys(parsed)) {
+          const entry = parsed[key]
+          if (entry?.avatarUrl && entry.avatarUrl.includes('base64,ffd8')) {
+            // 这是错误的 hex 格式，清除它
+            entry.avatarUrl = undefined
+          }
+        }
         this.cache = parsed
       }
     } catch (error) {

electron/services/exportService.ts

@@ -72,8 +72,21 @@ export interface ExportOptions {
   exportEmojis?: boolean
   exportVoiceAsText?: boolean
   excelCompactColumns?: boolean
+  txtColumns?: string[]
+  sessionLayout?: 'shared' | 'per-session'
 }
 
+const TXT_COLUMN_DEFINITIONS: Array<{ id: string; label: string }> = [
+  { id: 'index', label: '序号' },
+  { id: 'time', label: '时间' },
+  { id: 'senderRole', label: '发送者身份' },
+  { id: 'messageType', label: '消息类型' },
+  { id: 'content', label: '内容' },
+  { id: 'senderNickname', label: '发送者昵称' },
+  { id: 'senderWxid', label: '发送者微信ID' },
+  { id: 'senderRemark', label: '发送者备注' }
+]
+
 interface MediaExportItem {
   relativePath: string
   kind: 'image' | 'voice' | 'emoji'
@@ -83,7 +96,32 @@ export interface ExportProgress {
   current: number
   total: number
   currentSession: string
-  phase: 'preparing' | 'exporting' | 'writing' | 'complete'
+  phase: 'preparing' | 'exporting' | 'exporting-media' | 'exporting-voice' | 'writing' | 'complete'
+}
+
+// 并发控制：限制同时执行的 Promise 数量
+async function parallelLimit<T, R>(
+  items: T[],
+  limit: number,
+  fn: (item: T, index: number) => Promise<R>
+): Promise<R[]> {
+  const results: R[] = new Array(items.length)
+  let currentIndex = 0
+
+  async function runNext(): Promise<void> {
+    while (currentIndex < items.length) {
+      const index = currentIndex++
+      results[index] = await fn(items[index], index)
+    }
+  }
+
+  // 启动 limit 个并发任务
+  const workers = Array(Math.min(limit, items.length))
+    .fill(null)
+    .map(() => runNext())
+
+  await Promise.all(workers)
+  return results
 }
 
 class ExportService {
@@ -402,20 +440,32 @@ class ExportService {
     return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
   }
 
+  private normalizeTxtColumns(columns?: string[] | null): string[] {
+    const fallback = ['index', 'time', 'senderRole', 'messageType', 'content']
+    const selected = new Set((columns && columns.length > 0 ? columns : fallback).filter(Boolean))
+    const ordered = TXT_COLUMN_DEFINITIONS.map((col) => col.id).filter((id) => selected.has(id))
+    return ordered.length > 0 ? ordered : fallback
+  }
+
+  private sanitizeTxtValue(value: string): string {
+    return value.replace(/\r?\n/g, ' ').replace(/\t/g, ' ').trim()
+  }
+
   /**
    * 导出媒体文件到指定目录
    */
   private async exportMediaForMessage(
     msg: any,
     sessionId: string,
-    mediaDir: string,
+    mediaRootDir: string,
+    mediaRelativePrefix: string,
     options: { exportImages?: boolean; exportVoices?: boolean; exportEmojis?: boolean; exportVoiceAsText?: boolean }
   ): Promise<MediaExportItem | null> {
     const localType = msg.localType
 
     // 图片消息
     if (localType === 3 && options.exportImages) {
-      const result = await this.exportImage(msg, sessionId, mediaDir)
+      const result = await this.exportImage(msg, sessionId, mediaRootDir, mediaRelativePrefix)
       if (result) {
         }
       return result
@@ -429,13 +479,13 @@ class ExportService {
       }
       // 否则导出语音文件
       if (options.exportVoices) {
-        return this.exportVoice(msg, sessionId, mediaDir)
+        return this.exportVoice(msg, sessionId, mediaRootDir, mediaRelativePrefix)
       }
     }
 
     // 动画表情
     if (localType === 47 && options.exportEmojis) {
-      const result = await this.exportEmoji(msg, sessionId, mediaDir)
+      const result = await this.exportEmoji(msg, sessionId, mediaRootDir, mediaRelativePrefix)
       if (result) {
         }
       return result
@@ -447,9 +497,14 @@ class ExportService {
   /**
    * 导出图片文件
    */
-  private async exportImage(msg: any, sessionId: string, mediaDir: string): Promise<MediaExportItem | null> {
+  private async exportImage(
+    msg: any,
+    sessionId: string,
+    mediaRootDir: string,
+    mediaRelativePrefix: string
+  ): Promise<MediaExportItem | null> {
     try {
-      const imagesDir = path.join(mediaDir, 'media', 'images')
+      const imagesDir = path.join(mediaRootDir, mediaRelativePrefix, 'images')
       if (!fs.existsSync(imagesDir)) {
         fs.mkdirSync(imagesDir, { recursive: true })
       }
@@ -494,7 +549,7 @@ class ExportService {
         fs.writeFileSync(destPath, Buffer.from(base64Data, 'base64'))
 
         return {
-          relativePath: `media/images/${fileName}`,
+          relativePath: path.posix.join(mediaRelativePrefix, 'images', fileName),
           kind: 'image'
         }
       } else if (sourcePath.startsWith('file://')) {
@@ -512,7 +567,7 @@ class ExportService {
         }
 
         return {
-          relativePath: `media/images/${fileName}`,
+          relativePath: path.posix.join(mediaRelativePrefix, 'images', fileName),
           kind: 'image'
         }
       }
@@ -526,9 +581,14 @@ class ExportService {
   /**
    * 导出语音文件
    */
-  private async exportVoice(msg: any, sessionId: string, mediaDir: string): Promise<MediaExportItem | null> {
+  private async exportVoice(
+    msg: any,
+    sessionId: string,
+    mediaRootDir: string,
+    mediaRelativePrefix: string
+  ): Promise<MediaExportItem | null> {
     try {
-      const voicesDir = path.join(mediaDir, 'media', 'voices')
+      const voicesDir = path.join(mediaRootDir, mediaRelativePrefix, 'voices')
       if (!fs.existsSync(voicesDir)) {
         fs.mkdirSync(voicesDir, { recursive: true })
       }
@@ -540,7 +600,7 @@ class ExportService {
       // 如果已存在则跳过
       if (fs.existsSync(destPath)) {
         return {
-          relativePath: `media/voices/${fileName}`,
+          relativePath: path.posix.join(mediaRelativePrefix, 'voices', fileName),
           kind: 'voice'
         }
       }
@@ -556,7 +616,7 @@ class ExportService {
       fs.writeFileSync(destPath, wavBuffer)
 
       return {
-        relativePath: `media/voices/${fileName}`,
+        relativePath: path.posix.join(mediaRelativePrefix, 'voices', fileName),
         kind: 'voice'
       }
     } catch (e) {
@@ -582,9 +642,14 @@ class ExportService {
   /**
    * 导出表情文件
    */
-  private async exportEmoji(msg: any, sessionId: string, mediaDir: string): Promise<MediaExportItem | null> {
+  private async exportEmoji(
+    msg: any,
+    sessionId: string,
+    mediaRootDir: string,
+    mediaRelativePrefix: string
+  ): Promise<MediaExportItem | null> {
     try {
-      const emojisDir = path.join(mediaDir, 'media', 'emojis')
+      const emojisDir = path.join(mediaRootDir, mediaRelativePrefix, 'emojis')
       if (!fs.existsSync(emojisDir)) {
         fs.mkdirSync(emojisDir, { recursive: true })
       }
@@ -613,7 +678,7 @@ class ExportService {
       // 如果已存在则跳过
       if (fs.existsSync(destPath)) {
         return {
-          relativePath: `media/emojis/${fileName}`,
+          relativePath: path.posix.join(mediaRelativePrefix, 'emojis', fileName),
           kind: 'emoji'
         }
       }
@@ -623,7 +688,7 @@ class ExportService {
         const downloaded = await this.downloadFile(emojiUrl, destPath)
           if (downloaded) {
             return {
-            relativePath: `media/emojis/${fileName}`,
+              relativePath: path.posix.join(mediaRelativePrefix, 'emojis', fileName),
               kind: 'emoji'
             }
           } else {
@@ -704,6 +769,22 @@ class ExportService {
     return '.jpg'
   }
 
+  private getMediaLayout(outputPath: string, options: ExportOptions): {
+    exportMediaEnabled: boolean
+    mediaRootDir: string
+    mediaRelativePrefix: string
+  } {
+    const exportMediaEnabled = options.exportMedia === true &&
+      Boolean(options.exportImages || options.exportVoices || options.exportEmojis)
+    const outputDir = path.dirname(outputPath)
+    const outputBaseName = path.basename(outputPath, path.extname(outputPath))
+    const useSharedMediaLayout = options.sessionLayout === 'shared'
+    const mediaRelativePrefix = useSharedMediaLayout
+      ? path.posix.join('media', outputBaseName)
+      : 'media'
+    return { exportMediaEnabled, mediaRootDir: outputDir, mediaRelativePrefix }
+  }
+
   /**
    * 下载文件
    */
@@ -1089,7 +1170,7 @@ class ExportService {
   }
 
   /**
-   * 导出单个会话为 ChatLab 格式
+   * 导出单个会话为 ChatLab 格式（并行优化版本）
    */
   async exportSessionToChatLab(
     sessionId: string,
@@ -1121,36 +1202,100 @@ class ExportService {
 
       allMessages.sort((a, b) => a.createTime - b.createTime)
 
+      const { exportMediaEnabled, mediaRootDir, mediaRelativePrefix } = this.getMediaLayout(outputPath, options)
+
+      // ========== 阶段1：并行导出媒体文件 ==========
+      const mediaMessages = exportMediaEnabled
+        ? allMessages.filter(msg => {
+            const t = msg.localType
+            return (t === 3 && options.exportImages) ||   // 图片
+                   (t === 47 && options.exportEmojis) ||  // 表情
+                   (t === 34 && options.exportVoices && !options.exportVoiceAsText)  // 语音文件（非转文字）
+          })
+        : []
+
+      const mediaCache = new Map<string, MediaExportItem | null>()
+
+      if (mediaMessages.length > 0) {
         onProgress?.({
-        current: 50,
+          current: 20,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-media'
+        })
+
+        // 并行导出媒体，限制 8 个并发
+        const MEDIA_CONCURRENCY = 8
+        await parallelLimit(mediaMessages, MEDIA_CONCURRENCY, async (msg) => {
+          const mediaKey = `${msg.localType}_${msg.localId}`
+          if (!mediaCache.has(mediaKey)) {
+            const mediaItem = await this.exportMediaForMessage(msg, sessionId, mediaRootDir, mediaRelativePrefix, {
+              exportImages: options.exportImages,
+              exportVoices: options.exportVoices,
+              exportEmojis: options.exportEmojis,
+              exportVoiceAsText: options.exportVoiceAsText
+            })
+            mediaCache.set(mediaKey, mediaItem)
+          }
+        })
+      }
+
+      // ========== 阶段2：并行语音转文字 ==========
+      const voiceMessages = options.exportVoiceAsText
+        ? allMessages.filter(msg => msg.localType === 34)
+        : []
+
+      const voiceTranscriptMap = new Map<number, string>()
+
+      if (voiceMessages.length > 0) {
+        onProgress?.({
+          current: 40,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-voice'
+        })
+
+        // 并行转写语音，限制 4 个并发（转写比较耗资源）
+        const VOICE_CONCURRENCY = 4
+        await parallelLimit(voiceMessages, VOICE_CONCURRENCY, async (msg) => {
+          const transcript = await this.transcribeVoice(sessionId, String(msg.localId))
+          voiceTranscriptMap.set(msg.localId, transcript)
+        })
+      }
+
+      // ========== 阶段3：构建消息列表 ==========
+      onProgress?.({
+        current: 60,
         total: 100,
         currentSession: sessionInfo.displayName,
         phase: 'exporting'
       })
 
-      const chatLabMessages: ChatLabMessage[] = []
+      const chatLabMessages: ChatLabMessage[] = allMessages.map(msg => {
-      for (const msg of allMessages) {
         const memberInfo = collected.memberSet.get(msg.senderUsername)?.member || {
           platformId: msg.senderUsername,
           accountName: msg.senderUsername,
           groupNickname: undefined
         }
 
-        let content = this.parseMessageContent(msg.content, msg.localType)
+        // 确定消息内容
-        // 如果是语音消息且开启了转文字
+        let content: string | null
         if (msg.localType === 34 && options.exportVoiceAsText) {
-          content = await this.transcribeVoice(sessionId, String(msg.localId))
+          // 使用预先转写的文字
+          content = voiceTranscriptMap.get(msg.localId) || '[语音消息 - 转文字失败]'
+        } else {
+          content = this.parseMessageContent(msg.content, msg.localType)
         }
 
-        chatLabMessages.push({
+        return {
           sender: msg.senderUsername,
           accountName: memberInfo.accountName,
           groupNickname: memberInfo.groupNickname,
           timestamp: msg.createTime,
           type: this.convertMessageType(msg.localType, msg.content),
           content: content
-        })
         }
+      })
 
       const avatarMap = options.exportAvatars
         ? await this.exportAvatars(
@@ -1218,7 +1363,7 @@ class ExportService {
   }
 
   /**
-   * 导出单个会话为详细 JSON 格式（原项目格式）
+   * 导出单个会话为详细 JSON 格式（原项目格式）- 并行优化版本
    */
   async exportSessionToDetailedJson(
     sessionId: string,
@@ -1244,16 +1389,89 @@ class ExportService {
       })
 
       const collected = await this.collectMessages(sessionId, cleanedMyWxid, options.dateRange)
-      const allMessages: any[] = []
+      const { exportMediaEnabled, mediaRootDir, mediaRelativePrefix } = this.getMediaLayout(outputPath, options)
 
+      // ========== 阶段1：并行导出媒体文件 ==========
+      const mediaMessages = exportMediaEnabled
+        ? collected.rows.filter(msg => {
+            const t = msg.localType
+            return (t === 3 && options.exportImages) ||
+                   (t === 47 && options.exportEmojis) ||
+                   (t === 34 && options.exportVoices && !options.exportVoiceAsText)
+          })
+        : []
+
+      const mediaCache = new Map<string, MediaExportItem | null>()
+
+      if (mediaMessages.length > 0) {
+        onProgress?.({
+          current: 15,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-media'
+        })
+
+        const MEDIA_CONCURRENCY = 8
+        await parallelLimit(mediaMessages, MEDIA_CONCURRENCY, async (msg) => {
+          const mediaKey = `${msg.localType}_${msg.localId}`
+          if (!mediaCache.has(mediaKey)) {
+            const mediaItem = await this.exportMediaForMessage(msg, sessionId, mediaRootDir, mediaRelativePrefix, {
+              exportImages: options.exportImages,
+              exportVoices: options.exportVoices,
+              exportEmojis: options.exportEmojis,
+              exportVoiceAsText: options.exportVoiceAsText
+            })
+            mediaCache.set(mediaKey, mediaItem)
+          }
+        })
+      }
+
+      // ========== 阶段2：并行语音转文字 ==========
+      const voiceMessages = options.exportVoiceAsText
+        ? collected.rows.filter(msg => msg.localType === 34)
+        : []
+
+      const voiceTranscriptMap = new Map<number, string>()
+
+      if (voiceMessages.length > 0) {
+        onProgress?.({
+          current: 35,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-voice'
+        })
+
+        const VOICE_CONCURRENCY = 4
+        await parallelLimit(voiceMessages, VOICE_CONCURRENCY, async (msg) => {
+          const transcript = await this.transcribeVoice(sessionId, String(msg.localId))
+          voiceTranscriptMap.set(msg.localId, transcript)
+        })
+      }
+
+      // ========== 阶段3：构建消息列表 ==========
+      onProgress?.({
+        current: 55,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'exporting'
+      })
+
+      const allMessages: any[] = []
       for (const msg of collected.rows) {
         const senderInfo = await this.getContactInfo(msg.senderUsername)
         const sourceMatch = /<msgsource>[\s\S]*?<\/msgsource>/i.exec(msg.content || '')
         const source = sourceMatch ? sourceMatch[0] : ''
 
-        let content = this.parseMessageContent(msg.content, msg.localType)
+        let content: string | null
-        if (msg.localType === 34 && options.exportVoiceAsText) {
+        const mediaKey = `${msg.localType}_${msg.localId}`
-          content = await this.transcribeVoice(sessionId, String(msg.localId))
+        const mediaItem = mediaCache.get(mediaKey)
+
+        if (mediaItem) {
+          content = mediaItem.relativePath
+        } else if (msg.localType === 34 && options.exportVoiceAsText) {
+          content = voiceTranscriptMap.get(msg.localId) || '[语音消息 - 转文字失败]'
+        } else {
+          content = this.parseMessageContent(msg.content, msg.localType)
         }
 
         allMessages.push({
@@ -1482,23 +1700,33 @@ class ExportService {
       const sortedMessages = collected.rows.sort((a, b) => a.createTime - b.createTime)
 
       // 媒体导出设置
-      const exportMediaEnabled = options.exportImages || options.exportVoices || options.exportEmojis
+      const { exportMediaEnabled, mediaRootDir, mediaRelativePrefix } = this.getMediaLayout(outputPath, options)
-      const sessionDir = path.dirname(outputPath)  // 会话目录，用于媒体导出
+
+      // ========== 并行预处理：媒体文件 ==========
+      const mediaMessages = exportMediaEnabled
+        ? sortedMessages.filter(msg => {
+            const t = msg.localType
+            return (t === 3 && options.exportImages) ||
+                   (t === 47 && options.exportEmojis) ||
+                   (t === 34 && options.exportVoices && !options.exportVoiceAsText)
+          })
+        : []
 
-      // 媒体导出缓存
       const mediaCache = new Map<string, MediaExportItem | null>()
 
-      for (let i = 0; i < sortedMessages.length; i++) {
+      if (mediaMessages.length > 0) {
-        const msg = sortedMessages[i]
+        onProgress?.({
+          current: 35,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-media'
+        })
 
-        // 导出媒体文件
+        const MEDIA_CONCURRENCY = 8
-        let mediaItem: MediaExportItem | null = null
+        await parallelLimit(mediaMessages, MEDIA_CONCURRENCY, async (msg) => {
-        if (exportMediaEnabled) {
           const mediaKey = `${msg.localType}_${msg.localId}`
-          if (mediaCache.has(mediaKey)) {
+          if (!mediaCache.has(mediaKey)) {
-            mediaItem = mediaCache.get(mediaKey) || null
+            const mediaItem = await this.exportMediaForMessage(msg, sessionId, mediaRootDir, mediaRelativePrefix, {
-          } else {
-            mediaItem = await this.exportMediaForMessage(msg, sessionId, sessionDir, {
               exportImages: options.exportImages,
               exportVoices: options.exportVoices,
               exportEmojis: options.exportEmojis,
@@ -1506,8 +1734,46 @@ class ExportService {
             })
             mediaCache.set(mediaKey, mediaItem)
           }
+        })
       }
 
+      // ========== 并行预处理：语音转文字 ==========
+      const voiceMessages = options.exportVoiceAsText
+        ? sortedMessages.filter(msg => msg.localType === 34)
+        : []
+
+      const voiceTranscriptMap = new Map<number, string>()
+
+      if (voiceMessages.length > 0) {
+        onProgress?.({
+          current: 50,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-voice'
+        })
+
+        const VOICE_CONCURRENCY = 4
+        await parallelLimit(voiceMessages, VOICE_CONCURRENCY, async (msg) => {
+          const transcript = await this.transcribeVoice(sessionId, String(msg.localId))
+          voiceTranscriptMap.set(msg.localId, transcript)
+        })
+      }
+
+      onProgress?.({
+        current: 65,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'exporting'
+      })
+
+      // ========== 写入 Excel 行 ==========
+      for (let i = 0; i < sortedMessages.length; i++) {
+        const msg = sortedMessages[i]
+
+        // 从缓存获取媒体信息
+        const mediaKey = `${msg.localType}_${msg.localId}`
+        const mediaItem = mediaCache.get(mediaKey) || null
+
         // 确定发送者信息
         let senderRole: string
         let senderWxid: string
@@ -1555,12 +1821,15 @@ class ExportService {
         const row = worksheet.getRow(currentRow)
         row.height = 24
 
-        // 确定内容：如果有媒体文件导出成功则显示相对路径，否则显示解析后的内容
+        // 确定内容：优先使用预处理的缓存
-        let contentValue = mediaItem
+        let contentValue: string
-          ? mediaItem.relativePath
+        if (mediaItem) {
-          : (this.parseMessageContent(msg.content, msg.localType) || '')
+          contentValue = mediaItem.relativePath
-        if (!mediaItem && msg.localType === 34 && options.exportVoiceAsText) {
+        } else if (msg.localType === 34 && options.exportVoiceAsText) {
-          contentValue = await this.transcribeVoice(sessionId, String(msg.localId))
+          // 使用预处理的语音转文字结果
+          contentValue = voiceTranscriptMap.get(msg.localId) || '[语音消息 - 转文字失败]'
+        } else {
+          contentValue = this.parseMessageContent(msg.content, msg.localType) || ''
         }
 
         // 调试日志
@@ -1634,6 +1903,197 @@ class ExportService {
     }
   }
 
+  /**
+   * 导出单个会话为 TXT 格式（默认与 Excel 精简列一致）
+   */
+  async exportSessionToTxt(
+    sessionId: string,
+    outputPath: string,
+    options: ExportOptions,
+    onProgress?: (progress: ExportProgress) => void
+  ): Promise<{ success: boolean; error?: string }> {
+    try {
+      const conn = await this.ensureConnected()
+      if (!conn.success || !conn.cleanedWxid) return { success: false, error: conn.error }
+
+      const cleanedMyWxid = conn.cleanedWxid
+      const isGroup = sessionId.includes('@chatroom')
+      const sessionInfo = await this.getContactInfo(sessionId)
+      const myInfo = await this.getContactInfo(cleanedMyWxid)
+
+      onProgress?.({
+        current: 0,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'preparing'
+      })
+
+      const collected = await this.collectMessages(sessionId, cleanedMyWxid, options.dateRange)
+      const sortedMessages = collected.rows.sort((a, b) => a.createTime - b.createTime)
+
+      const { exportMediaEnabled, mediaRootDir, mediaRelativePrefix } = this.getMediaLayout(outputPath, options)
+      const mediaMessages = exportMediaEnabled
+        ? sortedMessages.filter(msg => {
+            const t = msg.localType
+            return (t === 3 && options.exportImages) ||
+                   (t === 47 && options.exportEmojis) ||
+                   (t === 34 && options.exportVoices && !options.exportVoiceAsText)
+          })
+        : []
+
+      const mediaCache = new Map<string, MediaExportItem | null>()
+
+      if (mediaMessages.length > 0) {
+        onProgress?.({
+          current: 25,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-media'
+        })
+
+        const MEDIA_CONCURRENCY = 8
+        await parallelLimit(mediaMessages, MEDIA_CONCURRENCY, async (msg) => {
+          const mediaKey = `${msg.localType}_${msg.localId}`
+          if (!mediaCache.has(mediaKey)) {
+            const mediaItem = await this.exportMediaForMessage(msg, sessionId, mediaRootDir, mediaRelativePrefix, {
+              exportImages: options.exportImages,
+              exportVoices: options.exportVoices,
+              exportEmojis: options.exportEmojis,
+              exportVoiceAsText: options.exportVoiceAsText
+            })
+            mediaCache.set(mediaKey, mediaItem)
+          }
+        })
+      }
+
+      const voiceMessages = options.exportVoiceAsText
+        ? sortedMessages.filter(msg => msg.localType === 34)
+        : []
+      const voiceTranscriptMap = new Map<number, string>()
+
+      if (voiceMessages.length > 0) {
+        onProgress?.({
+          current: 45,
+          total: 100,
+          currentSession: sessionInfo.displayName,
+          phase: 'exporting-voice'
+        })
+
+        const VOICE_CONCURRENCY = 4
+        await parallelLimit(voiceMessages, VOICE_CONCURRENCY, async (msg) => {
+          const transcript = await this.transcribeVoice(sessionId, String(msg.localId))
+          voiceTranscriptMap.set(msg.localId, transcript)
+        })
+      }
+
+      onProgress?.({
+        current: 60,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'exporting'
+      })
+
+      const columnOrder = this.normalizeTxtColumns(options.txtColumns)
+      const columnLabelMap = new Map(TXT_COLUMN_DEFINITIONS.map((col) => [col.id, col.label]))
+      const lines: string[] = []
+      lines.push(columnOrder.map((id) => columnLabelMap.get(id) || id).join('\t'))
+
+      for (let i = 0; i < sortedMessages.length; i++) {
+        const msg = sortedMessages[i]
+        const mediaKey = `${msg.localType}_${msg.localId}`
+        const mediaItem = mediaCache.get(mediaKey) || null
+
+        let contentValue: string
+        if (mediaItem) {
+          contentValue = mediaItem.relativePath
+        } else if (msg.localType === 34 && options.exportVoiceAsText) {
+          contentValue = voiceTranscriptMap.get(msg.localId) || '[语音消息 - 转文字失败]'
+        } else {
+          contentValue = this.parseMessageContent(msg.content, msg.localType) || ''
+        }
+
+        let senderRole: string
+        let senderWxid: string
+        let senderNickname: string
+        let senderRemark = ''
+
+        if (msg.isSend) {
+          senderRole = '我'
+          senderWxid = cleanedMyWxid
+          senderNickname = myInfo.displayName || cleanedMyWxid
+        } else if (isGroup && msg.senderUsername) {
+          senderWxid = msg.senderUsername
+          const contactDetail = await wcdbService.getContact(msg.senderUsername)
+          if (contactDetail.success && contactDetail.contact) {
+            senderNickname = contactDetail.contact.nickName || msg.senderUsername
+            senderRemark = contactDetail.contact.remark || ''
+            senderRole = senderRemark || senderNickname
+          } else {
+            senderNickname = msg.senderUsername
+            senderRole = msg.senderUsername
+          }
+        } else {
+          senderWxid = sessionId
+          const contactDetail = await wcdbService.getContact(sessionId)
+          if (contactDetail.success && contactDetail.contact) {
+            senderNickname = contactDetail.contact.nickName || sessionId
+            senderRemark = contactDetail.contact.remark || ''
+            senderRole = senderRemark || senderNickname
+          } else {
+            senderNickname = sessionInfo.displayName || sessionId
+            senderRole = senderNickname
+          }
+        }
+
+        const values: Record<string, string> = {
+          index: String(i + 1),
+          time: this.formatTimestamp(msg.createTime),
+          senderRole,
+          senderNickname,
+          senderWxid,
+          senderRemark,
+          messageType: this.getMessageTypeName(msg.localType),
+          content: contentValue
+        }
+
+        const line = columnOrder
+          .map((id) => this.sanitizeTxtValue(values[id] ?? ''))
+          .join('\t')
+        lines.push(line)
+
+        if ((i + 1) % 200 === 0) {
+          const progress = 60 + Math.floor((i + 1) / sortedMessages.length * 30)
+          onProgress?.({
+            current: progress,
+            total: 100,
+            currentSession: sessionInfo.displayName,
+            phase: 'exporting'
+          })
+        }
+      }
+
+      onProgress?.({
+        current: 92,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'writing'
+      })
+
+      fs.writeFileSync(outputPath, lines.join('\n'), 'utf-8')
+
+      onProgress?.({
+        current: 100,
+        total: 100,
+        currentSession: sessionInfo.displayName,
+        phase: 'complete'
+      })
+
+      return { success: true }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
   /**
    * 批量导出多个会话
    */
@@ -1656,6 +2116,12 @@ class ExportService {
         fs.mkdirSync(outputDir, { recursive: true })
       }
 
+        const exportMediaEnabled = options.exportMedia === true &&
+          Boolean(options.exportImages || options.exportVoices || options.exportEmojis)
+        const sessionLayout = exportMediaEnabled
+          ? (options.sessionLayout ?? 'per-session')
+          : 'shared'
+
         for (let i = 0; i < sessionIds.length; i++) {
           const sessionId = sessionIds[i]
           const sessionInfo = await this.getContactInfo(sessionId)
@@ -1668,16 +2134,17 @@ class ExportService {
         })
 
           const safeName = sessionInfo.displayName.replace(/[<>:"/\\|?*]/g, '_')
+          const useSessionFolder = sessionLayout === 'per-session'
+          const sessionDir = useSessionFolder ? path.join(outputDir, safeName) : outputDir
 
-        // 为每个会话创建单独的文件夹
+          if (useSessionFolder && !fs.existsSync(sessionDir)) {
-        const sessionDir = path.join(outputDir, safeName)
-        if (!fs.existsSync(sessionDir)) {
             fs.mkdirSync(sessionDir, { recursive: true })
           }
 
         let ext = '.json'
         if (options.format === 'chatlab-jsonl') ext = '.jsonl'
         else if (options.format === 'excel') ext = '.xlsx'
+        else if (options.format === 'txt') ext = '.txt'
         const outputPath = path.join(sessionDir, `${safeName}${ext}`)
 
         let result: { success: boolean; error?: string }
@@ -1687,6 +2154,8 @@ class ExportService {
           result = await this.exportSessionToChatLab(sessionId, outputPath, options)
         } else if (options.format === 'excel') {
           result = await this.exportSessionToExcel(sessionId, outputPath, options)
+        } else if (options.format === 'txt') {
+          result = await this.exportSessionToTxt(sessionId, outputPath, options)
         } else {
           result = { success: false, error: `不支持的格式: ${options.format}` }
         }

electron/services/keyService.ts

@@ -33,6 +33,7 @@ export class KeyService {
   private ReadProcessMemory: any = null
   private MEMORY_BASIC_INFORMATION: any = null
   private TerminateProcess: any = null
+  private QueryFullProcessImageNameW: any = null
 
   // User32
   private EnumWindows: any = null
@@ -194,6 +195,7 @@ export class KeyService {
       this.OpenProcess = this.kernel32.func('OpenProcess', 'HANDLE', ['uint32', 'bool', 'uint32'])
       this.CloseHandle = this.kernel32.func('CloseHandle', 'bool', ['HANDLE'])
       this.TerminateProcess = this.kernel32.func('TerminateProcess', 'bool', ['HANDLE', 'uint32'])
+      this.QueryFullProcessImageNameW = this.kernel32.func('QueryFullProcessImageNameW', 'bool', ['HANDLE', 'uint32', this.koffi.out('uint16*'), this.koffi.out('uint32*')])
       this.VirtualQueryEx = this.kernel32.func('VirtualQueryEx', 'uint64', ['HANDLE', 'uint64', this.koffi.out(this.koffi.pointer(this.MEMORY_BASIC_INFORMATION)), 'uint64'])
       this.ReadProcessMemory = this.kernel32.func('ReadProcessMemory', 'bool', ['HANDLE', 'uint64', 'void*', 'uint64', this.koffi.out(this.koffi.pointer('uint64'))])
 
@@ -310,7 +312,46 @@ export class KeyService {
     }
   }
 
+  private async getProcessExecutablePath(pid: number): Promise<string | null> {
+    if (!this.ensureKernel32()) return null
+    // 0x1000 = PROCESS_QUERY_LIMITED_INFORMATION
+    const hProcess = this.OpenProcess(0x1000, false, pid)
+    if (!hProcess) return null
+
+    try {
+      const sizeBuf = Buffer.alloc(4)
+      sizeBuf.writeUInt32LE(1024, 0)
+      const pathBuf = Buffer.alloc(1024 * 2)
+
+      const ret = this.QueryFullProcessImageNameW(hProcess, 0, pathBuf, sizeBuf)
+      if (ret) {
+        const len = sizeBuf.readUInt32LE(0)
+        return pathBuf.toString('ucs2', 0, len * 2)
+      }
+      return null
+    } catch (e) {
+      console.error('获取进程路径失败:', e)
+      return null
+    } finally {
+      this.CloseHandle(hProcess)
+    }
+  }
+
   private async findWeChatInstallPath(): Promise<string | null> {
+    // 0. 优先尝试获取正在运行的微信进程路径
+    try {
+      const pid = await this.findWeChatPid()
+      if (pid) {
+        const runPath = await this.getProcessExecutablePath(pid)
+        if (runPath && existsSync(runPath)) {
+          console.log('发现正在运行的微信进程，使用路径:', runPath)
+          return runPath
+        }
+      }
+    } catch (e) {
+      console.error('尝试获取运行中微信路径失败:', e)
+    }
+
     // 1. Registry - Uninstall Keys
     const uninstallKeys = [
       'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall',
@@ -588,6 +629,11 @@ export class KeyService {
     if (!ok) {
       const error = this.getLastErrorMsg ? this.decodeCString(this.getLastErrorMsg()) : ''
       if (error) {
+        // 检测权限不足错误 (NTSTATUS 0xC0000022 = STATUS_ACCESS_DENIED)
+        if (error.includes('0xC0000022') || error.includes('ACCESS_DENIED') || error.includes('打开目标进程失败')) {
+          const friendlyError = '权限不足：无法访问微信进程。\n\n解决方法：\n1. 右键 WeFlow 图标，选择"以管理员身份运行"\n2. 关闭可能拦截的安全软件（如360、火绒等）\n3. 确保微信没有以管理员权限运行'
+          return { success: false, error: friendlyError }
+        }
         return { success: false, error }
       }
       const statusBuffer = Buffer.alloc(256)

electron/services/snsService.ts

@@ -0,0 +1,64 @@
+import { wcdbService } from './wcdbService'
+import { ConfigService } from './config'
+import { ContactCacheService } from './contactCacheService'
+
+export interface SnsPost {
+    id: string
+    username: string
+    nickname: string
+    avatarUrl?: string
+    createTime: number
+    contentDesc: string
+    type?: number
+    media: { url: string; thumb: string }[]
+    likes: string[]
+    comments: { id: string; nickname: string; content: string; refCommentId: string; refNickname?: string }[]
+}
+
+class SnsService {
+    private contactCache: ContactCacheService
+
+    constructor() {
+        const config = new ConfigService()
+        this.contactCache = new ContactCacheService(config.get('cachePath') as string)
+    }
+
+    async getTimeline(limit: number = 20, offset: number = 0, usernames?: string[], keyword?: string, startTime?: number, endTime?: number): Promise<{ success: boolean; timeline?: SnsPost[]; error?: string }> {
+        console.log('[SnsService] getTimeline called with:', { limit, offset, usernames, keyword, startTime, endTime })
+
+        const result = await wcdbService.getSnsTimeline(limit, offset, usernames, keyword, startTime, endTime)
+
+        console.log('[SnsService] getSnsTimeline result:', {
+            success: result.success,
+            timelineCount: result.timeline?.length,
+            error: result.error
+        })
+
+        if (result.success && result.timeline) {
+            const enrichedTimeline = result.timeline.map((post: any) => {
+                const contact = this.contactCache.get(post.username)
+
+                // 修复媒体 URL，如果是 http 则尝试用 https (虽然 qpic 可能不支持强制 https，但通常支持)
+                const fixedMedia = post.media.map((m: any) => ({
+                    url: m.url.replace('http://', 'https://'),
+                    thumb: m.thumb.replace('http://', 'https://')
+                }))
+
+                return {
+                    ...post,
+                    avatarUrl: contact?.avatarUrl,
+                    nickname: post.nickname || contact?.displayName || post.username,
+                    media: fixedMedia
+                }
+            })
+
+            console.log('[SnsService] Returning enriched timeline with', enrichedTimeline.length, 'posts')
+            return { ...result, timeline: enrichedTimeline }
+        }
+
+        console.log('[SnsService] Returning result:', result)
+        return result
+    }
+}
+
+export const snsService = new SnsService()

electron/services/wcdbCore.ts

@@ -1,6 +1,12 @@
 import { join, dirname, basename } from 'path'
 import { appendFileSync, existsSync, mkdirSync, readdirSync, statSync, readFileSync } from 'fs'
 
+// DLL 初始化错误信息，用于帮助用户诊断问题
+let lastDllInitError: string | null = null
+export function getLastDllInitError(): string | null {
+  return lastDllInitError
+}
+
 export class WcdbCore {
   private resourcesPath: string | null = null
   private userDataPath: string | null = null
@@ -49,6 +55,7 @@ export class WcdbCore {
   private wcdbGetEmoticonCdnUrl: any = null
   private wcdbGetDbStatus: any = null
   private wcdbGetVoiceData: any = null
+  private wcdbGetSnsTimeline: any = null
   private avatarUrlCache: Map<string, { url?: string; updatedAt: number }> = new Map()
   private readonly avatarCacheTtlMs = 10 * 60 * 1000
   private logTimer: NodeJS.Timeout | null = null
@@ -110,7 +117,8 @@ export class WcdbCore {
   private writeLog(message: string, force = false): void {
     if (!force && !this.isLogEnabled()) return
     const line = `[${new Date().toISOString()}] ${message}`
-    // 移除控制台日志，只写入文件
+    // 同时输出到控制台和文件
+    console.log('[WCDB]', message)
     try {
       const base = this.userDataPath || process.env.WCDB_LOG_DIR || process.cwd()
       const dir = join(base, 'logs')
@@ -208,6 +216,31 @@ export class WcdbCore {
         return false
       }
 
+      // 关键修复：显式预加载依赖库 WCDB.dll 和 SDL2.dll
+      // Windows 加载器默认不会查找子目录中的依赖，必须先将其加载到内存
+      // 这可以解决部分用户因为 VC++ 运行时或 DLL 依赖问题导致的闪退
+      const dllDir = dirname(dllPath)
+      const wcdbCorePath = join(dllDir, 'WCDB.dll')
+      if (existsSync(wcdbCorePath)) {
+        try {
+          this.koffi.load(wcdbCorePath)
+          this.writeLog('预加载 WCDB.dll 成功')
+        } catch (e) {
+          console.warn('预加载 WCDB.dll 失败(可能不是致命的):', e)
+          this.writeLog(`预加载 WCDB.dll 失败: ${String(e)}`)
+        }
+      }
+      const sdl2Path = join(dllDir, 'SDL2.dll')
+      if (existsSync(sdl2Path)) {
+        try {
+          this.koffi.load(sdl2Path)
+          this.writeLog('预加载 SDL2.dll 成功')
+        } catch (e) {
+          console.warn('预加载 SDL2.dll 失败(可能不是致命的):', e)
+          this.writeLog(`预加载 SDL2.dll 失败: ${String(e)}`)
+        }
+      }
+
       this.lib = this.koffi.load(dllPath)
 
       // 定义类型
@@ -354,6 +387,13 @@ export class WcdbCore {
         this.wcdbGetVoiceData = null
       }
 
+      // wcdb_status wcdb_get_sns_timeline(wcdb_handle handle, int32_t limit, int32_t offset, const char* username, const char* keyword, int32_t start_time, int32_t end_time, char** out_json)
+      try {
+        this.wcdbGetSnsTimeline = this.lib.func('int32 wcdb_get_sns_timeline(int64 handle, int32 limit, int32 offset, const char* username, const char* keyword, int32 startTime, int32 endTime, _Out_ void** outJson)')
+      } catch {
+        this.wcdbGetSnsTimeline = null
+      }
+
       // 初始化
       const initResult = this.wcdbInit()
       if (initResult !== 0) {
@@ -362,9 +402,20 @@ export class WcdbCore {
       }
 
       this.initialized = true
+      lastDllInitError = null
       return true
     } catch (e) {
-      console.error('WCDB 初始化异常:', e)
+      const errorMsg = e instanceof Error ? e.message : String(e)
+      console.error('WCDB 初始化异常:', errorMsg)
+      this.writeLog(`WCDB 初始化异常: ${errorMsg}`, true)
+      lastDllInitError = errorMsg
+      // 检查是否是常见的 VC++ 运行时缺失错误
+      if (errorMsg.includes('126') || errorMsg.includes('找不到指定的模块') ||
+        errorMsg.includes('The specified module could not be found')) {
+        lastDllInitError = '可能缺少 Visual C++ 运行时库。请安装 Microsoft Visual C++ Redistributable (x64)。'
+      } else if (errorMsg.includes('193') || errorMsg.includes('不是有效的 Win32 应用程序')) {
+        lastDllInitError = 'DLL 架构不匹配。请确保使用 64 位版本的应用程序。'
+      }
       return false
     }
   }
@@ -382,10 +433,18 @@ export class WcdbCore {
         return { success: true, sessionCount: 0 }
       }
 
+      // 记录当前活动连接，用于在测试结束后恢复（避免影响聊天页等正在使用的连接）
+      const hadActiveConnection = this.handle !== null
+      const prevPath = this.currentPath
+      const prevKey = this.currentKey
+      const prevWxid = this.currentWxid
+
       if (!this.initialized) {
         const initOk = await this.initialize()
         if (!initOk) {
-          return { success: false, error: 'WCDB 初始化失败' }
+          // 返回更详细的错误信息，帮助用户诊断问题
+          const detailedError = lastDllInitError || 'WCDB 初始化失败'
+          return { success: false, error: detailedError }
         }
       }
 
@@ -424,8 +483,8 @@ export class WcdbCore {
         return { success: false, error: '无效的数据库句柄' }
       }
 
-      // 测试成功，使用 shutdown 清理所有资源（包括测试句柄）
+      // 测试成功：使用 shutdown 清理资源（包括测试句柄）
-      // 这会中断当前活动连接，但 testConnection 本应该是独立测试
+      // 注意：shutdown 会断开当前活动连接，因此需要在测试后尝试恢复之前的连接
       try {
         this.wcdbShutdown()
         this.handle = null
@@ -437,6 +496,15 @@ export class WcdbCore {
         console.error('关闭测试数据库时出错:', closeErr)
       }
 
+      // 恢复测试前的连接（如果之前有活动连接）
+      if (hadActiveConnection && prevPath && prevKey && prevWxid) {
+        try {
+          await this.open(prevPath, prevKey, prevWxid)
+        } catch {
+          // 恢复失败则保持断开，由调用方处理
+        }
+      }
+
       return { success: true, sessionCount: 0 }
     } catch (e) {
       console.error('测试连接异常:', e)
@@ -1329,4 +1397,32 @@ export class WcdbCore {
       return { success: false, error: String(e) }
     }
   }
+
+  async getSnsTimeline(limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number): Promise<{ success: boolean; timeline?: any[]; error?: string }> {
+    if (!this.ensureReady()) return { success: false, error: 'WCDB 未连接' }
+    if (!this.wcdbGetSnsTimeline) return { success: false, error: '当前 DLL 版本不支持获取朋友圈' }
+    try {
+      const outPtr = [null as any]
+      const usernamesJson = usernames && usernames.length > 0 ? JSON.stringify(usernames) : ''
+      const result = this.wcdbGetSnsTimeline(
+        this.handle,
+        limit,
+        offset,
+        usernamesJson,
+        keyword || '',
+        startTime || 0,
+        endTime || 0,
+        outPtr
+      )
+      if (result !== 0 || !outPtr[0]) {
+        return { success: false, error: `获取朋友圈失败: ${result}` }
+      }
+      const jsonStr = this.decodeJsonPtr(outPtr[0])
+      if (!jsonStr) return { success: false, error: '解析朋友圈数据失败' }
+      const timeline = JSON.parse(jsonStr)
+      return { success: true, timeline }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
 }

electron/services/wcdbService.ts

@@ -58,12 +58,24 @@ export class WcdbService {
       })
 
       this.worker.on('error', (err) => {
-        // Worker error
+        // Worker 发生错误，需要 reject 所有 pending promises
+        console.error('WCDB Worker 错误:', err)
+        const errorMsg = err instanceof Error ? err.message : String(err)
+        for (const [id, p] of this.pending) {
+          p.reject(new Error(`Worker 错误: ${errorMsg}`))
+        }
+        this.pending.clear()
       })
 
       this.worker.on('exit', (code) => {
+        // Worker 退出，需要 reject 所有 pending promises
         if (code !== 0) {
-          // Worker exited with error
+          console.error('WCDB Worker 异常退出，退出码:', code)
+          const errorMsg = `Worker 异常退出 (退出码: ${code})。可能是 DLL 加载失败，请检查是否安装了 Visual C++ Redistributable。`
+          for (const [id, p] of this.pending) {
+            p.reject(new Error(errorMsg))
+          }
+          this.pending.clear()
         }
         this.worker = null
       })
@@ -350,6 +362,13 @@ export class WcdbService {
     return this.callWorker('getVoiceData', { sessionId, createTime, candidates, localId, svrId })
   }
 
+  /**
+   * 获取朋友圈
+   */
+  async getSnsTimeline(limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number): Promise<{ success: boolean; timeline?: any[]; error?: string }> {
+    return this.callWorker('getSnsTimeline', { limit, offset, usernames, keyword, startTime, endTime })
+  }
+
 }
 
 export const wcdbService = new WcdbService()

electron/wcdbWorker.ts

@@ -116,6 +116,9 @@ if (parentPort) {
                         console.error('[wcdbWorker] getVoiceData failed:', result.error)
                     }
                     break
+                case 'getSnsTimeline':
+                    result = await core.getSnsTimeline(payload.limit, payload.offset, payload.usernames, payload.keyword, payload.startTime, payload.endTime)
+                    break
                 default:
                     result = { success: false, error: `Unknown method: ${type}` }
             }

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "weflow",
-  "version": "1.2.0",
+  "version": "1.3.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "weflow",
-      "version": "1.2.0",
+      "version": "1.3.1",
       "hasInstallScript": true,
       "dependencies": {
         "better-sqlite3": "^12.5.0",
@@ -8537,12 +8537,6 @@
         "sherpa-onnx-win-x64": "^1.12.23"
       }
     },
-    "node_modules/sherpa-onnx-node/node_modules/sherpa-onnx-darwin-x64": {
-      "optional": true
-    },
-    "node_modules/sherpa-onnx-node/node_modules/sherpa-onnx-linux-arm64": {
-      "optional": true
-    },
     "node_modules/sherpa-onnx-win-ia32": {
       "version": "1.12.23",
       "resolved": "https://registry.npmmirror.com/sherpa-onnx-win-ia32/-/sherpa-onnx-win-ia32-1.12.23.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "weflow",
-  "version": "1.2.0",
+  "version": "1.3.2",
   "description": "WeFlow",
   "main": "dist-electron/main.js",
   "author": "cc",
@@ -105,6 +105,24 @@
     "asarUnpack": [
       "node_modules/silk-wasm/**/*",
       "node_modules/sherpa-onnx-node/**/*"
+    ],
+    "extraFiles": [
+      {
+        "from": "resources/msvcp140.dll",
+        "to": "."
+      },
+      {
+        "from": "resources/msvcp140_1.dll",
+        "to": "."
+      },
+      {
+        "from": "resources/vcruntime140.dll",
+        "to": "."
+      },
+      {
+        "from": "resources/vcruntime140_1.dll",
+        "to": "."
+      }
     ]
   }
 }

src/App.tsx

@@ -16,6 +16,7 @@ import DataManagementPage from './pages/DataManagementPage'
 import SettingsPage from './pages/SettingsPage'
 import ExportPage from './pages/ExportPage'
 import VideoWindow from './pages/VideoWindow'
+import SnsPage from './pages/SnsPage'
 
 import { useAppStore } from './stores/appStore'
 import { themes, useThemeStore, type ThemeId } from './stores/themeStore'
@@ -202,10 +203,22 @@ function App() {
             }
           } else {
             console.log('自动连接失败:', result.error)
+            // 如果错误信息包含 VC++ 或 DLL 相关内容，不清除配置，只提示用户
+            // 其他错误可能需要重新配置
+            const errorMsg = result.error || ''
+            if (errorMsg.includes('Visual C++') ||
+              errorMsg.includes('DLL') ||
+              errorMsg.includes('Worker') ||
+              errorMsg.includes('126') ||
+              errorMsg.includes('模块')) {
+              console.warn('检测到可能的运行时依赖问题:', errorMsg)
+              // 不清除配置，让用户安装 VC++ 后重试
+            }
           }
         }
       } catch (e) {
         console.error('自动连接出错:', e)
+        // 捕获异常但不清除配置，防止循环重新引导
       }
     }
 
@@ -324,6 +337,7 @@ function App() {
               <Route path="/data-management" element={<DataManagementPage />} />
               <Route path="/settings" element={<SettingsPage />} />
               <Route path="/export" element={<ExportPage />} />
+              <Route path="/sns" element={<SnsPage />} />
             </Routes>
           </RouteGuard>
         </main>

src/components/JumpToDateDialog.scss

@@ -0,0 +1,238 @@
+.jump-date-overlay {
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.4);
+    backdrop-filter: blur(4px);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 2000;
+    animation: fadeIn 0.2s ease-out;
+}
+
+.jump-date-modal {
+    background: var(--card-bg);
+    width: 340px;
+    border-radius: 16px;
+    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
+    display: flex;
+    flex-direction: column;
+    overflow: hidden;
+    animation: modalSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+.jump-date-header {
+    padding: 18px 20px;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    border-bottom: 1px solid var(--border-color);
+
+    .title-area {
+        display: flex;
+        align-items: center;
+        gap: 10px;
+        color: var(--text-primary);
+
+        svg {
+            color: var(--primary);
+        }
+
+        h3 {
+            font-size: 16px;
+            font-weight: 600;
+            margin: 0;
+        }
+    }
+
+    .close-btn {
+        background: none;
+        border: none;
+        color: var(--text-tertiary);
+        cursor: pointer;
+        padding: 4px;
+        border-radius: 6px;
+        display: flex;
+        transition: all 0.2s;
+
+        &:hover {
+            background: var(--bg-hover);
+            color: var(--text-primary);
+        }
+    }
+}
+
+.calendar-view {
+    padding: 20px;
+
+    .calendar-nav {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        margin-bottom: 16px;
+
+        .current-month {
+            font-size: 15px;
+            font-weight: 600;
+            color: var(--text-primary);
+        }
+
+        .nav-btn {
+            width: 32px;
+            height: 32px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            background: var(--bg-secondary);
+            border: 1px solid var(--border-color);
+            border-radius: 8px;
+            color: var(--text-secondary);
+            cursor: pointer;
+            transition: all 0.2s;
+
+            &:hover {
+                background: var(--bg-hover);
+                border-color: var(--primary);
+                color: var(--primary);
+            }
+        }
+    }
+}
+
+.calendar-grid {
+    .weekdays {
+        display: grid;
+        grid-template-columns: repeat(7, 1fr);
+        margin-bottom: 8px;
+
+        .weekday {
+            text-align: center;
+            font-size: 12px;
+            font-weight: 500;
+            color: var(--text-tertiary);
+            padding: 4px 0;
+        }
+    }
+
+    .days {
+        display: grid;
+        grid-template-columns: repeat(7, 1fr);
+        gap: 4px;
+
+        .day-cell {
+            aspect-ratio: 1;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            font-size: 14px;
+            color: var(--text-primary);
+            border-radius: 8px;
+            cursor: pointer;
+            transition: all 0.2s;
+
+            &.empty {
+                cursor: default;
+            }
+
+            &:not(.empty):hover {
+                background: var(--bg-hover);
+            }
+
+            &.selected {
+                background: var(--primary);
+                color: #fff;
+                font-weight: 600;
+            }
+
+            &.today:not(.selected) {
+                color: var(--primary);
+                font-weight: 600;
+                background: var(--primary-light);
+            }
+        }
+    }
+}
+
+.quick-options {
+    display: flex;
+    gap: 8px;
+    padding: 0 20px 16px;
+
+    button {
+        flex: 1;
+        padding: 8px;
+        font-size: 12px;
+        background: var(--bg-secondary);
+        border: 1px solid var(--border-color);
+        border-radius: 6px;
+        color: var(--text-secondary);
+        cursor: pointer;
+        transition: all 0.2s;
+
+        &:hover {
+            background: var(--bg-hover);
+            color: var(--primary);
+            border-color: var(--primary);
+        }
+    }
+}
+
+.dialog-footer {
+    padding: 16px 20px;
+    display: flex;
+    gap: 12px;
+    background: var(--bg-secondary);
+
+    button {
+        flex: 1;
+        padding: 10px;
+        border-radius: 8px;
+        font-size: 14px;
+        font-weight: 600;
+        cursor: pointer;
+        transition: all 0.2s;
+    }
+
+    .cancel-btn {
+        background: transparent;
+        border: 1px solid var(--border-color);
+        color: var(--text-secondary);
+
+        &:hover {
+            background: var(--bg-hover);
+            color: var(--text-primary);
+        }
+    }
+
+    .confirm-btn {
+        background: var(--primary);
+        border: none;
+        color: #fff;
+
+        &:hover {
+            background: var(--primary-hover);
+        }
+    }
+}
+
+@keyframes fadeIn {
+    from {
+        opacity: 0;
+    }
+
+    to {
+        opacity: 1;
+    }
+}
+
+@keyframes modalSlideUp {
+    from {
+        opacity: 0;
+        transform: translateY(20px);
+    }
+
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}

src/components/JumpToDateDialog.tsx

@@ -0,0 +1,156 @@
+import React, { useState } from 'react'
+import { X, ChevronLeft, ChevronRight, Calendar as CalendarIcon } from 'lucide-react'
+import './JumpToDateDialog.scss'
+
+interface JumpToDateDialogProps {
+    isOpen: boolean
+    onClose: () => void
+    onSelect: (date: Date) => void
+    currentDate?: Date
+}
+
+const JumpToDateDialog: React.FC<JumpToDateDialogProps> = ({
+    isOpen,
+    onClose,
+    onSelect,
+    currentDate = new Date()
+}) => {
+    const [calendarDate, setCalendarDate] = useState(new Date(currentDate))
+    const [selectedDate, setSelectedDate] = useState(new Date(currentDate))
+
+    if (!isOpen) return null
+
+    const getDaysInMonth = (date: Date) => {
+        const year = date.getFullYear()
+        const month = date.getMonth()
+        return new Date(year, month + 1, 0).getDate()
+    }
+
+    const getFirstDayOfMonth = (date: Date) => {
+        const year = date.getFullYear()
+        const month = date.getMonth()
+        return new Date(year, month, 1).getDay()
+    }
+
+    const generateCalendar = () => {
+        const daysInMonth = getDaysInMonth(calendarDate)
+        const firstDay = getFirstDayOfMonth(calendarDate)
+        const days: (number | null)[] = []
+
+        for (let i = 0; i < firstDay; i++) {
+            days.push(null)
+        }
+
+        for (let i = 1; i <= daysInMonth; i++) {
+            days.push(i)
+        }
+
+        return days
+    }
+
+    const handleDateClick = (day: number) => {
+        const newDate = new Date(calendarDate.getFullYear(), calendarDate.getMonth(), day)
+        setSelectedDate(newDate)
+    }
+
+    const handleConfirm = () => {
+        onSelect(selectedDate)
+        onClose()
+    }
+
+    const isToday = (day: number) => {
+        const today = new Date()
+        return day === today.getDate() &&
+            calendarDate.getMonth() === today.getMonth() &&
+            calendarDate.getFullYear() === today.getFullYear()
+    }
+
+    const isSelected = (day: number) => {
+        return day === selectedDate.getDate() &&
+            calendarDate.getMonth() === selectedDate.getMonth() &&
+            calendarDate.getFullYear() === selectedDate.getFullYear()
+    }
+
+    const weekdays = ['日', '一', '二', '三', '四', '五', '六']
+    const days = generateCalendar()
+
+    return (
+        <div className="jump-date-overlay" onClick={onClose}>
+            <div className="jump-date-modal" onClick={e => e.stopPropagation()}>
+                <div className="jump-date-header">
+                    <div className="title-area">
+                        <CalendarIcon size={18} />
+                        <h3>跳转到日期</h3>
+                    </div>
+                    <button className="close-btn" onClick={onClose}>
+                        <X size={18} />
+                    </button>
+                </div>
+
+                <div className="calendar-view">
+                    <div className="calendar-nav">
+                        <button
+                            className="nav-btn"
+                            onClick={() => setCalendarDate(new Date(calendarDate.getFullYear(), calendarDate.getMonth() - 1, 1))}
+                        >
+                            <ChevronLeft size={18} />
+                        </button>
+                        <span className="current-month">
+                            {calendarDate.getFullYear()}年{calendarDate.getMonth() + 1}月
+                        </span>
+                        <button
+                            className="nav-btn"
+                            onClick={() => setCalendarDate(new Date(calendarDate.getFullYear(), calendarDate.getMonth() + 1, 1))}
+                        >
+                            <ChevronRight size={18} />
+                        </button>
+                    </div>
+
+                    <div className="calendar-grid">
+                        <div className="weekdays">
+                            {weekdays.map(d => <div key={d} className="weekday">{d}</div>)}
+                        </div>
+                        <div className="days">
+                            {days.map((day, i) => (
+                                <div
+                                    key={i}
+                                    className={`day-cell ${day === null ? 'empty' : ''} ${day !== null && isSelected(day) ? 'selected' : ''} ${day !== null && isToday(day) ? 'today' : ''}`}
+                                    onClick={() => day !== null && handleDateClick(day)}
+                                >
+                                    {day}
+                                </div>
+                            ))}
+                        </div>
+                    </div>
+                </div>
+
+                <div className="quick-options">
+                    <button onClick={() => {
+                        const d = new Date()
+                        setSelectedDate(d)
+                        setCalendarDate(new Date(d))
+                    }}>今天</button>
+                    <button onClick={() => {
+                        const d = new Date()
+                        d.setDate(d.getDate() - 7)
+                        setSelectedDate(d)
+                        setCalendarDate(new Date(d))
+                    }}>一周前</button>
+                    <button onClick={() => {
+                        const d = new Date()
+                        d.setMonth(d.getMonth() - 1)
+                        setSelectedDate(d)
+                        setCalendarDate(new Date(d))
+                    }}>一月前</button>
+                </div>
+
+                <div className="dialog-footer">
+                    <button className="cancel-btn" onClick={onClose}>取消</button>
+                    <button className="confirm-btn" onClick={handleConfirm}>跳转</button>
+                </div>
+            </div>
+        </div>
+    )
+}
+
+export default JumpToDateDialog

src/components/Sidebar.tsx

@@ -1,6 +1,6 @@
 import { useState } from 'react'
 import { NavLink, useLocation } from 'react-router-dom'
-import { Home, MessageSquare, BarChart3, Users, FileText, Database, Settings, ChevronLeft, ChevronRight, Download, Bot } from 'lucide-react'
+import { Home, MessageSquare, BarChart3, Users, FileText, Database, Settings, ChevronLeft, ChevronRight, Download, Bot, Aperture } from 'lucide-react'
 import './Sidebar.scss'
 
 function Sidebar() {
@@ -34,6 +34,16 @@ function Sidebar() {
           <span className="nav-label">聊天</span>
         </NavLink>
 
+        {/* 朋友圈 */}
+        <NavLink
+          to="/sns"
+          className={`nav-item ${isActive('/sns') ? 'active' : ''}`}
+          title={collapsed ? '朋友圈' : undefined}
+        >
+          <span className="nav-icon"><Aperture size={20} /></span>
+          <span className="nav-label">朋友圈</span>
+        </NavLink>
+
 
 
         {/* 私聊分析 */}

src/pages/ChatPage.scss

@@ -489,8 +489,21 @@
       }
 
       .load-more-trigger {
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        gap: 8px;
+        padding: 12px 0;
         color: var(--text-tertiary);
-        font-size: 12px;
+        font-size: 13px;
+
+        &.later {
+          padding: 24px 0 12px;
+        }
+
+        svg {
+          animation: spin 1s linear infinite;
+        }
       }
 
       .empty-chat {

src/pages/ChatPage.tsx

@@ -7,6 +7,7 @@ import { getEmojiPath } from 'wechat-emojis'
 import { ImagePreview } from '../components/ImagePreview'
 import { VoiceTranscribeDialog } from '../components/VoiceTranscribeDialog'
 import { AnimatedStreamingText } from '../components/AnimatedStreamingText'
+import JumpToDateDialog from '../components/JumpToDateDialog'
 import * as configService from '../services/config'
 import './ChatPage.scss'
 
@@ -132,15 +133,25 @@ function ChatPage(_props: ChatPageProps) {
     setLoadingMessages,
     setLoadingMore,
     setHasMoreMessages,
+    hasMoreLater,
+    setHasMoreLater,
     setSearchKeyword
   } = useChatStore()
 
   const messageListRef = useRef<HTMLDivElement>(null)
   const searchInputRef = useRef<HTMLInputElement>(null)
   const sidebarRef = useRef<HTMLDivElement>(null)
+
+  const getMessageKey = useCallback((msg: Message): string => {
+    if (msg.localId && msg.localId > 0) return `l:${msg.localId}`
+    return `t:${msg.createTime}:${msg.sortSeq || 0}:${msg.serverId || 0}`
+  }, [])
   const initialRevealTimerRef = useRef<number | null>(null)
   const sessionListRef = useRef<HTMLDivElement>(null)
   const [currentOffset, setCurrentOffset] = useState(0)
+  const [jumpStartTime, setJumpStartTime] = useState(0)
+  const [jumpEndTime, setJumpEndTime] = useState(0)
+  const [showJumpDialog, setShowJumpDialog] = useState(false)
   const [myAvatarUrl, setMyAvatarUrl] = useState<string | undefined>(undefined)
   const [myWxid, setMyWxid] = useState<string | undefined>(undefined)
   const [showScrollToBottom, setShowScrollToBottom] = useState(false)
@@ -477,6 +488,9 @@ function ChatPage(_props: ChatPageProps) {
 
   // 刷新会话列表
   const handleRefresh = async () => {
+    setJumpStartTime(0)
+    setJumpEndTime(0)
+    setHasMoreLater(false)
     await loadSessions({ silent: true })
   }
 
@@ -484,6 +498,9 @@ function ChatPage(_props: ChatPageProps) {
   const [isRefreshingMessages, setIsRefreshingMessages] = useState(false)
   const handleRefreshMessages = async () => {
     if (!currentSessionId || isRefreshingMessages) return
+    setJumpStartTime(0)
+    setJumpEndTime(0)
+    setHasMoreLater(false)
     setIsRefreshingMessages(true)
     try {
       // 获取最新消息并增量添加
@@ -518,7 +535,7 @@ function ChatPage(_props: ChatPageProps) {
   }
 
   // 加载消息
-  const loadMessages = async (sessionId: string, offset = 0) => {
+  const loadMessages = async (sessionId: string, offset = 0, startTime = 0, endTime = 0) => {
     const listEl = messageListRef.current
     const session = sessionMapRef.current.get(sessionId)
     const unreadCount = session?.unreadCount ?? 0
@@ -535,7 +552,7 @@ function ChatPage(_props: ChatPageProps) {
     const firstMsgEl = listEl?.querySelector('.message-wrapper') as HTMLElement | null
 
     try {
-      const result = await window.electronAPI.chat.getMessages(sessionId, offset, messageLimit)
+      const result = await window.electronAPI.chat.getMessages(sessionId, offset, messageLimit, startTime, endTime)
       if (result.success && result.messages) {
         if (offset === 0) {
           setMessages(result.messages)
@@ -601,6 +618,14 @@ function ChatPage(_props: ChatPageProps) {
           }
         }
         setHasMoreMessages(result.hasMore ?? false)
+        // 如果是按 endTime 跳转加载，且结果刚好满批，可能后面（更晚）还有消息
+        if (offset === 0) {
+          if (endTime > 0) {
+            setHasMoreLater(true)
+          } else {
+            setHasMoreLater(false)
+          }
+        }
         setCurrentOffset(offset + result.messages.length)
       } else if (!result.success) {
         setConnectionError(result.error || '加载消息失败')
@@ -616,12 +641,41 @@ function ChatPage(_props: ChatPageProps) {
     }
   }
 
+  // 加载更晚的消息
+  const loadLaterMessages = useCallback(async () => {
+    if (!currentSessionId || isLoadingMore || isLoadingMessages || messages.length === 0) return
+
+    setLoadingMore(true)
+    try {
+      const lastMsg = messages[messages.length - 1]
+      // 从最后一条消息的时间开始往后找
+      const result = await window.electronAPI.chat.getMessages(currentSessionId, 0, 50, lastMsg.createTime, 0, true)
+
+      if (result.success && result.messages) {
+        // 过滤掉已经在列表中的重复消息
+        const existingKeys = messageKeySetRef.current
+        const newMsgs = result.messages.filter(m => !existingKeys.has(getMessageKey(m)))
+
+        if (newMsgs.length > 0) {
+          appendMessages(newMsgs, false)
+        }
+        setHasMoreLater(result.hasMore ?? false)
+      }
+    } catch (e) {
+      console.error('加载后续消息失败:', e)
+    } finally {
+      setLoadingMore(false)
+    }
+  }, [currentSessionId, isLoadingMore, isLoadingMessages, messages, getMessageKey, appendMessages, setHasMoreLater, setLoadingMore])
+
   // 选择会话
   const handleSelectSession = (session: ChatSession) => {
     if (session.username === currentSessionId) return
     setCurrentSession(session.username)
     setCurrentOffset(0)
-    loadMessages(session.username, 0)
+    setJumpStartTime(0)
+    setJumpEndTime(0)
+    loadMessages(session.username, 0, 0, 0)
     // 重置详情面板
     setSessionDetail(null)
     if (showDetailPanel) {
@@ -678,16 +732,21 @@ function ChatPage(_props: ChatPageProps) {
       if (!isLoadingMore && !isLoadingMessages && hasMoreMessages && currentSessionId) {
         const threshold = clientHeight * 0.3
         if (scrollTop < threshold) {
-          loadMessages(currentSessionId, currentOffset)
+          loadMessages(currentSessionId, currentOffset, jumpStartTime, jumpEndTime)
+        }
+      }
+
+      // 预加载更晚的消息
+      if (!isLoadingMore && !isLoadingMessages && hasMoreLater && currentSessionId) {
+        const threshold = clientHeight * 0.3
+        const distanceFromBottom = scrollHeight - scrollTop - clientHeight
+        if (distanceFromBottom < threshold) {
+          loadLaterMessages()
         }
       }
     })
-  }, [isLoadingMore, isLoadingMessages, hasMoreMessages, currentSessionId, currentOffset, loadMessages])
+  }, [isLoadingMore, isLoadingMessages, hasMoreMessages, hasMoreLater, currentSessionId, currentOffset, jumpStartTime, jumpEndTime, loadMessages, loadLaterMessages])
 
-  const getMessageKey = useCallback((msg: Message): string => {
-    if (msg.localId && msg.localId > 0) return `l:${msg.localId}`
-    return `t:${msg.createTime}:${msg.sortSeq || 0}:${msg.serverId || 0}`
-  }, [])
 
   const isSameSession = useCallback((prev: ChatSession, next: ChatSession): boolean => {
     return (
@@ -1102,6 +1161,25 @@ function ChatPage(_props: ChatPageProps) {
                 )}
               </div>
               <div className="header-actions">
+                <button
+                  className="icon-btn jump-to-time-btn"
+                  onClick={() => setShowJumpDialog(true)}
+                  title="跳转到指定时间"
+                >
+                  <Calendar size={18} />
+                </button>
+                <JumpToDateDialog
+                  isOpen={showJumpDialog}
+                  onClose={() => setShowJumpDialog(false)}
+                  onSelect={(date) => {
+                    if (!currentSessionId) return
+                    const end = Math.floor(date.setHours(23, 59, 59, 999) / 1000)
+                    setCurrentOffset(0)
+                    setJumpStartTime(0)
+                    setJumpEndTime(end)
+                    loadMessages(currentSessionId, 0, 0, end)
+                  }}
+                />
                 <button
                   className="icon-btn refresh-messages-btn"
                   onClick={handleRefreshMessages}
@@ -1177,6 +1255,19 @@ function ChatPage(_props: ChatPageProps) {
                   )
                 })}
 
+                {hasMoreLater && (
+                  <div className={`load-more-trigger later ${isLoadingMore ? 'loading' : ''}`}>
+                    {isLoadingMore ? (
+                      <>
+                        <Loader2 size={14} />
+                        <span>正在加载后续消息...</span>
+                      </>
+                    ) : (
+                      <span>向下滚动查看更新消息</span>
+                    )}
+                  </div>
+                )}
+
                 {/* 回到底部按钮 */}
                 <div className={`scroll-to-bottom ${showScrollToBottom ? 'show' : ''}`} onClick={scrollToBottom}>
                   <ChevronDown size={16} />

src/pages/ExportPage.scss

@@ -602,6 +602,87 @@
     }
   }
 
+  .export-layout-modal {
+    background: var(--card-bg);
+    padding: 28px 32px;
+    border-radius: 16px;
+    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
+    text-align: center;
+    width: min(520px, 90vw);
+
+    h3 {
+      font-size: 18px;
+      font-weight: 600;
+      color: var(--text-primary);
+      margin: 0 0 8px;
+    }
+
+    .layout-subtitle {
+      font-size: 14px;
+      color: var(--text-secondary);
+      margin: 0 0 20px;
+    }
+
+    .layout-options {
+      display: grid;
+      gap: 12px;
+    }
+
+    .layout-option-btn {
+      display: flex;
+      flex-direction: column;
+      gap: 6px;
+      padding: 14px 18px;
+      border-radius: 12px;
+      border: 1px solid var(--border-color);
+      background: var(--bg-secondary);
+      text-align: left;
+      cursor: pointer;
+      transition: all 0.2s;
+
+      &:hover {
+        border-color: var(--primary);
+        background: rgba(var(--primary-rgb), 0.08);
+      }
+
+      &.primary {
+        border-color: var(--primary);
+        background: rgba(var(--primary-rgb), 0.12);
+      }
+
+      .layout-title {
+        font-size: 15px;
+        font-weight: 600;
+        color: var(--text-primary);
+      }
+
+      .layout-desc {
+        font-size: 12px;
+        color: var(--text-tertiary);
+      }
+    }
+
+    .layout-actions {
+      margin-top: 18px;
+      display: flex;
+      justify-content: center;
+    }
+
+    .layout-cancel-btn {
+      padding: 8px 20px;
+      border-radius: 8px;
+      border: 1px solid var(--border-color);
+      background: var(--bg-secondary);
+      color: var(--text-primary);
+      cursor: pointer;
+      transition: all 0.2s;
+
+      &:hover {
+        background: var(--bg-hover);
+      }
+    }
+  }
+
   .export-result-modal {
     background: var(--card-bg);
     padding: 32px 40px;

src/pages/ExportPage.tsx

@@ -22,6 +22,7 @@ interface ExportOptions {
   exportEmojis: boolean
   exportVoiceAsText: boolean
   excelCompactColumns: boolean
+  txtColumns: string[]
 }
 
 interface ExportResult {
@@ -31,7 +32,10 @@ interface ExportResult {
   error?: string
 }
 
+type SessionLayout = 'shared' | 'per-session'
+
 function ExportPage() {
+  const defaultTxtColumns = ['index', 'time', 'senderRole', 'messageType', 'content']
   const [sessions, setSessions] = useState<ChatSession[]>([])
   const [filteredSessions, setFilteredSessions] = useState<ChatSession[]>([])
   const [selectedSessions, setSelectedSessions] = useState<Set<string>>(new Set())
@@ -44,6 +48,7 @@ function ExportPage() {
   const [showDatePicker, setShowDatePicker] = useState(false)
   const [calendarDate, setCalendarDate] = useState(new Date())
   const [selectingStart, setSelectingStart] = useState(true)
+  const [showMediaLayoutPrompt, setShowMediaLayoutPrompt] = useState(false)
 
   const [options, setOptions] = useState<ExportOptions>({
     format: 'excel',
@@ -58,7 +63,8 @@ function ExportPage() {
     exportVoices: true,
     exportEmojis: true,
     exportVoiceAsText: true,
-    excelCompactColumns: true
+    excelCompactColumns: true,
+    txtColumns: defaultTxtColumns
   })
 
   const buildDateRangeFromPreset = (preset: string) => {
@@ -122,17 +128,20 @@ function ExportPage() {
         savedRange,
         savedMedia,
         savedVoiceAsText,
-        savedExcelCompactColumns
+        savedExcelCompactColumns,
+        savedTxtColumns
       ] = await Promise.all([
         configService.getExportDefaultFormat(),
         configService.getExportDefaultDateRange(),
         configService.getExportDefaultMedia(),
         configService.getExportDefaultVoiceAsText(),
-        configService.getExportDefaultExcelCompactColumns()
+        configService.getExportDefaultExcelCompactColumns(),
+        configService.getExportDefaultTxtColumns()
       ])
 
       const preset = savedRange || 'today'
       const rangeDefaults = buildDateRangeFromPreset(preset)
+      const txtColumns = savedTxtColumns && savedTxtColumns.length > 0 ? savedTxtColumns : defaultTxtColumns
 
       setOptions((prev) => ({
         ...prev,
@@ -141,7 +150,8 @@ function ExportPage() {
         dateRange: rangeDefaults.dateRange,
         exportMedia: savedMedia ?? false,
         exportVoiceAsText: savedVoiceAsText ?? true,
-        excelCompactColumns: savedExcelCompactColumns ?? true
+        excelCompactColumns: savedExcelCompactColumns ?? true,
+        txtColumns
       }))
     } catch (e) {
       console.error('加载导出默认设置失败:', e)
@@ -154,6 +164,19 @@ function ExportPage() {
     loadExportDefaults()
   }, [loadSessions, loadExportPath, loadExportDefaults])
 
+  useEffect(() => {
+    const removeListener = window.electronAPI.export.onProgress?.((payload) => {
+      setExportProgress({
+        current: payload.current,
+        total: payload.total,
+        currentName: payload.currentSession
+      })
+    })
+    return () => {
+      removeListener?.()
+    }
+  }, [])
+
   useEffect(() => {
     if (!searchKeyword.trim()) {
       setFilteredSessions(sessions)
@@ -199,7 +222,7 @@ function ExportPage() {
     }
   }
 
-  const startExport = async () => {
+  const runExport = async (sessionLayout: SessionLayout) => {
     if (selectedSessions.size === 0 || !exportFolder) return
 
     setIsExporting(true)
@@ -215,16 +238,18 @@ function ExportPage() {
         exportImages: options.exportMedia && options.exportImages,
         exportVoices: options.exportMedia && options.exportVoices,
         exportEmojis: options.exportMedia && options.exportEmojis,
-        exportVoiceAsText: options.exportVoiceAsText,  // 独立于 exportMedia
+        exportVoiceAsText: options.exportVoiceAsText,  // 即使不导出媒体，也可以导出语音转文字内容
         excelCompactColumns: options.excelCompactColumns,
+        txtColumns: options.txtColumns,
+        sessionLayout,
         dateRange: options.useAllTime ? null : options.dateRange ? {
           start: Math.floor(options.dateRange.start.getTime() / 1000),
-          // 将结束日期设置为当天的 23:59:59,以包含当天的所有消息
+          // 将结束日期设置为当天的 23:59:59，确保包含当天的所有记录
           end: Math.floor(new Date(options.dateRange.end.getFullYear(), options.dateRange.end.getMonth(), options.dateRange.end.getDate(), 23, 59, 59).getTime() / 1000)
         } : null
       }
 
-      if (options.format === 'chatlab' || options.format === 'chatlab-jsonl' || options.format === 'json' || options.format === 'excel') {
+      if (options.format === 'chatlab' || options.format === 'chatlab-jsonl' || options.format === 'json' || options.format === 'excel' || options.format === 'txt') {
         const result = await window.electronAPI.export.exportSessions(
           sessionList,
           exportFolder,
@@ -232,16 +257,28 @@ function ExportPage() {
         )
         setExportResult(result)
       } else {
-        setExportResult({ success: false, error: `${options.format.toUpperCase()} 格式导出功能开发中...` })
+        setExportResult({ success: false, error: `${options.format.toUpperCase()} 格式目前暂未实现，请选择其他格式。` })
       }
     } catch (e) {
-      console.error('导出失败:', e)
+      console.error('导出过程中发生异常:', e)
       setExportResult({ success: false, error: String(e) })
     } finally {
       setIsExporting(false)
     }
   }
 
+  const startExport = () => {
+    if (selectedSessions.size === 0 || !exportFolder) return
+
+    if (options.exportMedia && selectedSessions.size > 1) {
+      setShowMediaLayoutPrompt(true)
+      return
+    }
+
+    const layout: SessionLayout = options.exportMedia ? 'per-session' : 'shared'
+    runExport(layout)
+  }
+
   const getDaysInMonth = (date: Date) => {
     const year = date.getFullYear()
     const month = date.getMonth()
@@ -600,6 +637,43 @@ function ExportPage() {
         </div>
       </div>
 
+      {/* 媒体导出布局选择弹窗 */}
+      {showMediaLayoutPrompt && (
+        <div className="export-overlay" onClick={() => setShowMediaLayoutPrompt(false)}>
+          <div className="export-layout-modal" onClick={e => e.stopPropagation()}>
+            <h3>导出文件夹布局</h3>
+            <p className="layout-subtitle">检测到同时导出多个会话并包含媒体文件，请选择存放方式：</p>
+            <div className="layout-options">
+              <button
+                className="layout-option-btn primary"
+                onClick={() => {
+                  setShowMediaLayoutPrompt(false)
+                  runExport('shared')
+                }}
+              >
+                <span className="layout-title">所有会话在同一文件夹</span>
+                <span className="layout-desc">媒体会按会话名归档到 media 子目录</span>
+              </button>
+              <button
+                className="layout-option-btn"
+                onClick={() => {
+                  setShowMediaLayoutPrompt(false)
+                  runExport('per-session')
+                }}
+              >
+                <span className="layout-title">每个会话一个文件夹</span>
+                <span className="layout-desc">每个会话单独包含导出文件和媒体</span>
+              </button>
+            </div>
+            <div className="layout-actions">
+              <button className="layout-cancel-btn" onClick={() => setShowMediaLayoutPrompt(false)}>
+                取消
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
+
       {/* 导出进度弹窗 */}
       {isExporting && (
         <div className="export-overlay">

src/pages/SettingsPage.scss

@@ -221,6 +221,100 @@
     }
   }
 
+  .select-field {
+    position: relative;
+    margin-bottom: 10px;
+  }
+
+  .select-trigger {
+    width: 100%;
+    padding: 10px 16px;
+    border: 1px solid var(--border-color);
+    border-radius: 9999px;
+    font-size: 14px;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 8px;
+    cursor: pointer;
+    transition: all 0.2s;
+
+    &:hover {
+      border-color: var(--text-tertiary);
+    }
+
+    &.open {
+      border-color: var(--primary);
+      box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 15%, transparent);
+    }
+  }
+
+  .select-value {
+    flex: 1;
+    min-width: 0;
+    text-align: left;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .select-dropdown {
+    position: absolute;
+    top: calc(100% + 6px);
+    left: 0;
+    right: 0;
+    background: color-mix(in srgb, var(--bg-primary) 85%, var(--bg-secondary));
+    border: 1px solid var(--border-color);
+    border-radius: 12px;
+    padding: 6px;
+    box-shadow: var(--shadow-md);
+    z-index: 20;
+    max-height: 320px;
+    overflow-y: auto;
+    backdrop-filter: blur(14px);
+    -webkit-backdrop-filter: blur(14px);
+  }
+
+  .select-option {
+    width: 100%;
+    text-align: left;
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    padding: 10px 12px;
+    border: none;
+    border-radius: 10px;
+    background: transparent;
+    cursor: pointer;
+    transition: all 0.15s;
+    color: var(--text-primary);
+    font-size: 14px;
+
+    &:hover {
+      background: var(--bg-tertiary);
+    }
+
+    &.active {
+      background: color-mix(in srgb, var(--primary) 12%, transparent);
+      color: var(--primary);
+    }
+  }
+
+  .option-label {
+    font-weight: 500;
+  }
+
+  .option-desc {
+    font-size: 12px;
+    color: var(--text-tertiary);
+  }
+
+  .select-option.active .option-desc {
+    color: var(--primary);
+  }
+
   .input-with-toggle {
     position: relative;
     display: flex;
@@ -1096,13 +1190,15 @@
   left: 0;
   right: 0;
   margin-top: 4px;
-  background: var(--bg-secondary);
+  background: color-mix(in srgb, var(--bg-primary) 85%, var(--bg-secondary));
   border: 1px solid var(--border-primary);
   border-radius: 8px;
   box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
   z-index: 100;
   max-height: 200px;
   overflow-y: auto;
+  backdrop-filter: blur(14px);
+  -webkit-backdrop-filter: blur(14px);
 }
 
 .wxid-option {

src/pages/SettingsPage.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect, useRef } from 'react'
+import { useState, useEffect, useRef } from 'react'
 import { useAppStore } from '../stores/appStore'
 import { useThemeStore, themes } from '../stores/themeStore'
 import { useAnalyticsStore } from '../stores/analyticsStore'
@@ -41,6 +41,12 @@ function SettingsPage() {
   const [wxidOptions, setWxidOptions] = useState<WxidOption[]>([])
   const [showWxidSelect, setShowWxidSelect] = useState(false)
   const wxidDropdownRef = useRef<HTMLDivElement>(null)
+  const [showExportFormatSelect, setShowExportFormatSelect] = useState(false)
+  const [showExportDateRangeSelect, setShowExportDateRangeSelect] = useState(false)
+  const [showExportExcelColumnsSelect, setShowExportExcelColumnsSelect] = useState(false)
+  const exportFormatDropdownRef = useRef<HTMLDivElement>(null)
+  const exportDateRangeDropdownRef = useRef<HTMLDivElement>(null)
+  const exportExcelColumnsDropdownRef = useRef<HTMLDivElement>(null)
   const [cachePath, setCachePath] = useState('')
   const [logEnabled, setLogEnabled] = useState(false)
   const [whisperModelName, setWhisperModelName] = useState('base')
@@ -55,6 +61,7 @@ function SettingsPage() {
   const [exportDefaultMedia, setExportDefaultMedia] = useState(false)
   const [exportDefaultVoiceAsText, setExportDefaultVoiceAsText] = useState(true)
   const [exportDefaultExcelCompactColumns, setExportDefaultExcelCompactColumns] = useState(true)
+  const [exportDefaultTxtColumns, setExportDefaultTxtColumns] = useState<string[]>(['index', 'time', 'senderRole', 'messageType', 'content'])
 
   const [isLoading, setIsLoadingState] = useState(false)
   const [isTesting, setIsTesting] = useState(false)
@@ -85,13 +92,23 @@ function SettingsPage() {
   // 点击外部关闭下拉框
   useEffect(() => {
     const handleClickOutside = (e: MouseEvent) => {
-      if (showWxidSelect && wxidDropdownRef.current && !wxidDropdownRef.current.contains(e.target as Node)) {
+      const target = e.target as Node
+      if (showWxidSelect && wxidDropdownRef.current && !wxidDropdownRef.current.contains(target)) {
         setShowWxidSelect(false)
       }
+      if (showExportFormatSelect && exportFormatDropdownRef.current && !exportFormatDropdownRef.current.contains(target)) {
+        setShowExportFormatSelect(false)
+      }
+      if (showExportDateRangeSelect && exportDateRangeDropdownRef.current && !exportDateRangeDropdownRef.current.contains(target)) {
+        setShowExportDateRangeSelect(false)
+      }
+      if (showExportExcelColumnsSelect && exportExcelColumnsDropdownRef.current && !exportExcelColumnsDropdownRef.current.contains(target)) {
+        setShowExportExcelColumnsSelect(false)
+      }
     }
     document.addEventListener('mousedown', handleClickOutside)
     return () => document.removeEventListener('mousedown', handleClickOutside)
-  }, [showWxidSelect])
+  }, [showWxidSelect, showExportFormatSelect, showExportDateRangeSelect, showExportExcelColumnsSelect])
 
   useEffect(() => {
     const removeDb = window.electronAPI.key.onDbKeyStatus((payload) => {
@@ -125,6 +142,8 @@ function SettingsPage() {
       const savedExportDefaultMedia = await configService.getExportDefaultMedia()
       const savedExportDefaultVoiceAsText = await configService.getExportDefaultVoiceAsText()
       const savedExportDefaultExcelCompactColumns = await configService.getExportDefaultExcelCompactColumns()
+      const savedExportDefaultTxtColumns = await configService.getExportDefaultTxtColumns()
+      const defaultTxtColumns = ['index', 'time', 'senderRole', 'messageType', 'content']
 
       if (savedKey) setDecryptKey(savedKey)
       if (savedPath) setDbPath(savedPath)
@@ -142,6 +161,11 @@ function SettingsPage() {
       setExportDefaultMedia(savedExportDefaultMedia ?? false)
       setExportDefaultVoiceAsText(savedExportDefaultVoiceAsText ?? true)
       setExportDefaultExcelCompactColumns(savedExportDefaultExcelCompactColumns ?? true)
+      setExportDefaultTxtColumns(
+        savedExportDefaultTxtColumns && savedExportDefaultTxtColumns.length > 0
+          ? savedExportDefaultTxtColumns
+          : defaultTxtColumns
+      )
 
       // 如果语言列表为空，保存默认值
       if (!savedTranscribeLanguages || savedTranscribeLanguages.length === 0) {
@@ -150,6 +174,10 @@ function SettingsPage() {
         await configService.setTranscribeLanguages(defaultLanguages)
       }
 
+      if (!savedExportDefaultTxtColumns || savedExportDefaultTxtColumns.length === 0) {
+        await configService.setExportDefaultTxtColumns(defaultTxtColumns)
+      }
+
       if (savedWhisperModelDir) setWhisperModelDir(savedWhisperModelDir)
     } catch (e) {
       console.error('加载配置失败:', e)
@@ -484,15 +512,8 @@ function SettingsPage() {
       await configService.setTranscribeLanguages(transcribeLanguages)
       await configService.setOnboardingDone(true)
 
-      showMessage('配置保存成功，正在测试连接...', true)
+      // 保存按钮只负责持久化配置，不做连接测试/重连，避免影响聊天页的活动连接
-      const result = await window.electronAPI.wcdb.testConnection(dbPath, decryptKey, wxid)
+      showMessage('配置保存成功', true)
-
-      if (result.success) {
-        setDbConnected(true, dbPath)
-        showMessage('配置保存成功！数据库连接正常', true)
-      } else {
-        showMessage(result.error || '数据库连接失败，请检查配置', false)
-      }
     } catch (e) {
       showMessage(`保存配置失败: ${e}`, false)
     } finally {
@@ -870,48 +891,124 @@ function SettingsPage() {
     </div>
   )
 
-  const renderExportTab = () => (
+  const exportFormatOptions = [
+    { value: 'excel', label: 'Excel', desc: '电子表格，适合统计分析' },
+    { value: 'chatlab', label: 'ChatLab', desc: '标准格式，支持其他软件导入' },
+    { value: 'chatlab-jsonl', label: 'ChatLab JSONL', desc: '流式格式，适合大量消息' },
+    { value: 'json', label: 'JSON', desc: '详细格式，包含完整消息信息' },
+    { value: 'html', label: 'HTML', desc: '网页格式，可直接浏览' },
+    { value: 'txt', label: 'TXT', desc: '纯文本，通用格式' },
+    { value: 'sql', label: 'PostgreSQL', desc: '数据库脚本，便于导入到数据库' }
+  ]
+  const exportDateRangeOptions = [
+    { value: 'today', label: '今天' },
+    { value: '7d', label: '最近7天' },
+    { value: '30d', label: '最近30天' },
+    { value: '90d', label: '最近90天' },
+    { value: 'all', label: '全部时间' }
+  ]
+  const exportExcelColumnOptions = [
+    { value: 'compact', label: '精简列', desc: '序号、时间、发送者身份、消息类型、内容' },
+    { value: 'full', label: '完整列', desc: '含发送者昵称/微信ID/备注' }
+  ]
+  const exportTxtColumnOptions = [
+    { value: 'index', label: '序号' },
+    { value: 'time', label: '时间' },
+    { value: 'senderRole', label: '发送者身份' },
+    { value: 'messageType', label: '消息类型' },
+    { value: 'content', label: '内容' },
+    { value: 'senderNickname', label: '发送者昵称' },
+    { value: 'senderWxid', label: '发送者微信ID' },
+    { value: 'senderRemark', label: '发送者备注' }
+  ]
+
+  const getOptionLabel = (options: { value: string; label: string }[], value: string) => {
+    return options.find((option) => option.value === value)?.label ?? value
+  }
+
+  const renderExportTab = () => {
+    const exportExcelColumnsValue = exportDefaultExcelCompactColumns ? 'compact' : 'full'
+    const exportFormatLabel = getOptionLabel(exportFormatOptions, exportDefaultFormat)
+    const exportDateRangeLabel = getOptionLabel(exportDateRangeOptions, exportDefaultDateRange)
+    const exportExcelColumnsLabel = getOptionLabel(exportExcelColumnOptions, exportExcelColumnsValue)
+
+    return (
     <div className="tab-content">
       <div className="form-group">
         <label>默认导出格式</label>
         <span className="form-hint">导出页面默认选中的格式</span>
-        <select
+        <div className="select-field" ref={exportFormatDropdownRef}>
-          value={exportDefaultFormat}
+          <button
-          onChange={async (e) => {
+            type="button"
-            const value = e.target.value
+            className={`select-trigger ${showExportFormatSelect ? 'open' : ''}`}
-            setExportDefaultFormat(value)
+            onClick={() => {
-            await configService.setExportDefaultFormat(value)
+              setShowExportFormatSelect(!showExportFormatSelect)
-            showMessage('已更新导出格式默认值', true)
+              setShowExportDateRangeSelect(false)
+              setShowExportExcelColumnsSelect(false)
             }}
           >
-          <option value="excel">Excel</option>
+            <span className="select-value">{exportFormatLabel}</span>
-          <option value="chatlab">ChatLab</option>
+            <ChevronDown size={16} />
-          <option value="chatlab-jsonl">ChatLab JSONL</option>
+          </button>
-          <option value="json">JSON</option>
+          {showExportFormatSelect && (
-          <option value="html">HTML</option>
+            <div className="select-dropdown">
-          <option value="txt">TXT</option>
+              {exportFormatOptions.map((option) => (
-          <option value="sql">PostgreSQL</option>
+                <button
-        </select>
+                  key={option.value}
+                  type="button"
+                  className={`select-option ${exportDefaultFormat === option.value ? 'active' : ''}`}
+                  onClick={async () => {
+                    setExportDefaultFormat(option.value)
+                    await configService.setExportDefaultFormat(option.value)
+                    showMessage('已更新导出格式默认值', true)
+                    setShowExportFormatSelect(false)
+                  }}
+                >
+                  <span className="option-label">{option.label}</span>
+                  {option.desc && <span className="option-desc">{option.desc}</span>}
+                </button>
+              ))}
+            </div>
+          )}
+        </div>
       </div>
 
       <div className="form-group">
         <label>默认导出时间范围</label>
         <span className="form-hint">控制导出页面的默认时间选择</span>
-        <select
+        <div className="select-field" ref={exportDateRangeDropdownRef}>
-          value={exportDefaultDateRange}
+          <button
-          onChange={async (e) => {
+            type="button"
-            const value = e.target.value
+            className={`select-trigger ${showExportDateRangeSelect ? 'open' : ''}`}
-            setExportDefaultDateRange(value)
+            onClick={() => {
-            await configService.setExportDefaultDateRange(value)
+              setShowExportDateRangeSelect(!showExportDateRangeSelect)
-            showMessage('已更新默认导出时间范围', true)
+              setShowExportFormatSelect(false)
+              setShowExportExcelColumnsSelect(false)
             }}
           >
-          <option value="today">今天</option>
+            <span className="select-value">{exportDateRangeLabel}</span>
-          <option value="7d">最近7天</option>
+            <ChevronDown size={16} />
-          <option value="30d">最近30天</option>
+          </button>
-          <option value="90d">最近90天</option>
+          {showExportDateRangeSelect && (
-          <option value="all">全部时间</option>
+            <div className="select-dropdown">
-        </select>
+              {exportDateRangeOptions.map((option) => (
+                <button
+                  key={option.value}
+                  type="button"
+                  className={`select-option ${exportDefaultDateRange === option.value ? 'active' : ''}`}
+                  onClick={async () => {
+                    setExportDefaultDateRange(option.value)
+                    await configService.setExportDefaultDateRange(option.value)
+                    showMessage('已更新默认导出时间范围', true)
+                    setShowExportDateRangeSelect(false)
+                  }}
+                >
+                  <span className="option-label">{option.label}</span>
+                </button>
+              ))}
+            </div>
+          )}
+        </div>
       </div>
 
       <div className="form-group">
@@ -963,21 +1060,80 @@ function SettingsPage() {
       <div className="form-group">
         <label>Excel 列显示</label>
         <span className="form-hint">控制 Excel 导出的列字段</span>
-        <select
+        <div className="select-field" ref={exportExcelColumnsDropdownRef}>
-          value={exportDefaultExcelCompactColumns ? 'compact' : 'full'}
+          <button
-          onChange={async (e) => {
+            type="button"
-            const compact = e.target.value === 'compact'
+            className={`select-trigger ${showExportExcelColumnsSelect ? 'open' : ''}`}
+            onClick={() => {
+              setShowExportExcelColumnsSelect(!showExportExcelColumnsSelect)
+              setShowExportFormatSelect(false)
+              setShowExportDateRangeSelect(false)
+            }}
+          >
+            <span className="select-value">{exportExcelColumnsLabel}</span>
+            <ChevronDown size={16} />
+          </button>
+          {showExportExcelColumnsSelect && (
+            <div className="select-dropdown">
+              {exportExcelColumnOptions.map((option) => (
+                <button
+                  key={option.value}
+                  type="button"
+                  className={`select-option ${exportExcelColumnsValue === option.value ? 'active' : ''}`}
+                  onClick={async () => {
+                    const compact = option.value === 'compact'
                     setExportDefaultExcelCompactColumns(compact)
                     await configService.setExportDefaultExcelCompactColumns(compact)
                     showMessage(compact ? '已启用精简列' : '已启用完整列', true)
+                    setShowExportExcelColumnsSelect(false)
                   }}
                 >
-          <option value="compact">精简列（序号、时间、发送者身份、消息类型、内容）</option>
+                  <span className="option-label">{option.label}</span>
-          <option value="full">完整列（含发送者昵称/微信ID/备注）</option>
+                  {option.desc && <span className="option-desc">{option.desc}</span>}
-        </select>
+                </button>
+              ))}
+            </div>
+          )}
+        </div>
+      </div>
+
+      <div className="form-group">
+        <label>TXT 导出栏目</label>
+        <span className="form-hint">默认与 Excel 精简列一致，可多选调整输出字段</span>
+        <div className="language-checkboxes">
+          {exportTxtColumnOptions.map((column) => {
+            const checked = exportDefaultTxtColumns.includes(column.value)
+            return (
+              <label key={column.value} className="language-checkbox">
+                <input
+                  type="checkbox"
+                  checked={checked}
+                  onChange={async (e) => {
+                    const enabled = e.target.checked
+                    const nextColumns = enabled
+                      ? [...exportDefaultTxtColumns, column.value]
+                      : exportDefaultTxtColumns.filter((value) => value !== column.value)
+                    if (nextColumns.length === 0) {
+                      showMessage('至少选择一个 TXT 导出栏目', false)
+                      return
+                    }
+                    setExportDefaultTxtColumns(nextColumns)
+                    await configService.setExportDefaultTxtColumns(nextColumns)
+                    showMessage('已更新 TXT 导出栏目', true)
+                  }}
+                />
+                <div className="checkbox-custom">
+                  <Check size={14} />
+                  <span>{column.label}</span>
+                </div>
+              </label>
+            )
+          })}
+        </div>
       </div>
     </div>
     )
+  }
   const renderCacheTab = () => (
     <div className="tab-content">
       <p className="section-desc">管理应用缓存数据</p>
@@ -1126,4 +1282,3 @@ function SettingsPage() {
 }
 
 export default SettingsPage
-

src/pages/SnsPage.scss

@@ -0,0 +1,579 @@
+.sns-page {
+    height: 100%;
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    overflow: hidden;
+
+    .sns-container {
+        display: flex;
+        height: 100%;
+    }
+
+    .sns-sidebar {
+        width: 280px;
+        background: var(--bg-secondary);
+        border-right: 1px solid var(--border-color);
+        display: flex;
+        flex-direction: column;
+        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+        flex-shrink: 0;
+
+        &.closed {
+            width: 0;
+            opacity: 0;
+            pointer-events: none;
+        }
+
+        .sidebar-header {
+            padding: 16px 20px;
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            border-bottom: 1px solid var(--border-color);
+
+            h3 {
+                margin: 0;
+                font-size: 16px;
+                font-weight: 600;
+            }
+
+            .toggle-btn {
+                background: none;
+                border: none;
+                color: var(--text-secondary);
+                cursor: pointer;
+                padding: 4px;
+                display: flex;
+                align-items: center;
+                justify-content: center;
+                border-radius: 4px;
+
+                &:hover {
+                    background: var(--hover-bg);
+                    color: var(--text-primary);
+                }
+            }
+        }
+
+        .filter-content {
+            flex: 1;
+            overflow-y: auto;
+            display: flex;
+            flex-direction: column;
+
+            /* 自定义滚动条 */
+            &::-webkit-scrollbar {
+                width: 4px;
+            }
+
+            &::-webkit-scrollbar-thumb {
+                background: var(--border-color);
+                border-radius: 10px;
+            }
+        }
+
+        .filter-group {
+            padding-bottom: 4px;
+            border-bottom: 1px solid var(--border-color);
+        }
+
+        .filter-section {
+            padding: 10px 20px;
+
+            label {
+                display: flex;
+                align-items: center;
+                gap: 6px;
+                font-size: 13px;
+                color: var(--text-secondary);
+                margin-bottom: 8px;
+                font-weight: 500;
+            }
+
+            input[type="text"] {
+                width: 100%;
+                background: var(--bg-tertiary);
+                border: 1px solid var(--border-color);
+                border-radius: 6px;
+                padding: 8px 12px;
+                color: var(--text-primary);
+                font-size: 13px;
+                outline: none;
+
+                &:focus {
+                    border-color: var(--accent-color);
+                }
+            }
+
+            .date-inputs {
+                display: flex;
+                flex-direction: column;
+                gap: 6px;
+
+                input[type="date"] {
+                    background: var(--bg-tertiary);
+                    border: 1px solid var(--border-color);
+                    border-radius: 6px;
+                    padding: 6px 10px;
+                    color: var(--text-primary);
+                    font-size: 12px;
+                    outline: none;
+                    width: 100%;
+
+                    &:focus {
+                        border-color: var(--accent-color);
+                    }
+                }
+
+                span {
+                    font-size: 11px;
+                    color: var(--text-tertiary);
+                    text-align: center;
+                }
+            }
+        }
+
+        .contact-filter-section {
+            flex: 1;
+            display: flex;
+            flex-direction: column;
+            min-height: 200px;
+            padding: 12px 0 0 0;
+
+            .section-header {
+                padding: 0 20px 8px 20px;
+                display: flex;
+                justify-content: space-between;
+                align-items: center;
+
+                label {
+                    display: flex;
+                    align-items: center;
+                    gap: 6px;
+                    font-size: 13px;
+                    color: var(--text-secondary);
+                    font-weight: 500;
+                }
+
+                .selected-count {
+                    font-size: 11px;
+                    background: var(--accent-color);
+                    color: white;
+                    padding: 1px 6px;
+                    border-radius: 10px;
+                }
+            }
+
+            .contact-search {
+                margin: 0 20px 10px 20px;
+                position: relative;
+
+                .search-icon {
+                    position: absolute;
+                    left: 10px;
+                    top: 50%;
+                    transform: translateY(-50%);
+                    color: var(--text-tertiary);
+                }
+
+                input {
+                    width: 100%;
+                    background: var(--bg-tertiary);
+                    border: 1px solid var(--border-color);
+                    border-radius: 4px;
+                    padding: 6px 10px 6px 28px;
+                    font-size: 12px;
+                    color: var(--text-primary);
+                    outline: none;
+
+                    &:focus {
+                        border-color: var(--accent-color);
+                    }
+                }
+            }
+
+            .contact-list {
+                flex: 1;
+                overflow-y: auto;
+                padding: 0 10px;
+
+                .contact-item {
+                    display: flex;
+                    align-items: center;
+                    padding: 8px 10px;
+                    border-radius: 6px;
+                    cursor: pointer;
+                    transition: all 0.2s;
+                    gap: 10px;
+                    margin-bottom: 2px;
+                    position: relative;
+
+                    &:hover {
+                        background: var(--hover-bg);
+                    }
+
+                    &.active {
+                        background: rgba(var(--accent-color-rgb), 0.1);
+
+                        .contact-name {
+                            color: var(--accent-color);
+                            font-weight: 600;
+                        }
+                    }
+
+                    .contact-name {
+                        flex: 1;
+                        font-size: 13px;
+                        white-space: nowrap;
+                        overflow: hidden;
+                        text-overflow: ellipsis;
+                        color: var(--text-secondary);
+                    }
+
+                    .check-mark {
+                        color: var(--accent-color);
+                        font-size: 12px;
+                        font-weight: bold;
+                    }
+                }
+
+                .empty-contacts {
+                    text-align: center;
+                    padding: 20px;
+                    font-size: 12px;
+                    color: var(--text-tertiary);
+                }
+            }
+        }
+
+        .sidebar-footer {
+            padding: 16px 20px;
+            border-top: 1px solid var(--border-color);
+
+            .clear-btn {
+                width: 100%;
+                padding: 8px;
+                background: transparent;
+                border: 1px solid var(--border-color);
+                color: var(--text-secondary);
+                border-radius: 6px;
+                cursor: pointer;
+                font-size: 13px;
+                transition: all 0.2s;
+
+                &:hover {
+                    background: var(--hover-bg);
+                    color: var(--text-primary);
+                }
+            }
+        }
+    }
+
+    .sns-main {
+        flex: 1;
+        display: flex;
+        flex-direction: column;
+        min-width: 0;
+
+        .sns-header {
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            padding: 0 20px;
+            height: 60px;
+            border-bottom: 1px solid var(--border-color);
+            background: var(--bg-secondary);
+
+            .header-left {
+                display: flex;
+                align-items: center;
+                gap: 12px;
+
+                h2 {
+                    margin: 0;
+                    font-size: 18px;
+                    font-weight: 600;
+                }
+            }
+
+            .icon-btn {
+                background: none;
+                border: none;
+                color: var(--text-secondary);
+                cursor: pointer;
+                padding: 8px;
+                border-radius: 4px;
+                transition: all 0.2s;
+                display: flex;
+                align-items: center;
+                justify-content: center;
+
+                &:hover {
+                    background: var(--hover-bg);
+                    color: var(--text-primary);
+                }
+            }
+
+            .spinning {
+                animation: spin 1s linear infinite;
+            }
+        }
+
+        .sns-content {
+            flex: 1;
+            overflow-y: auto;
+            padding: 24px;
+            scroll-behavior: smooth;
+
+            .active-filters {
+                max-width: 680px;
+                margin: 0 auto 16px auto;
+                display: flex;
+                align-items: center;
+                justify-content: space-between;
+                background: rgba(var(--accent-color-rgb), 0.05);
+                border: 1px solid rgba(var(--accent-color-rgb), 0.2);
+                padding: 8px 16px;
+                border-radius: 8px;
+                font-size: 13px;
+                color: var(--accent-color);
+
+                .clear-chip-btn {
+                    background: none;
+                    border: none;
+                    color: var(--text-tertiary);
+                    cursor: pointer;
+                    font-size: 12px;
+                    text-decoration: underline;
+
+                    &:hover {
+                        color: var(--text-secondary);
+                    }
+                }
+            }
+
+            .sns-post {
+                background: var(--bg-secondary);
+                border-radius: 12px;
+                padding: 20px;
+                margin-bottom: 24px;
+                max-width: 680px;
+                margin-left: auto;
+                margin-right: auto;
+                border: 1px solid var(--border-color);
+                box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
+
+                .post-header {
+                    display: flex;
+                    align-items: center;
+                    margin-bottom: 14px;
+
+                    .post-info {
+                        margin-left: 12px;
+
+                        .nickname {
+                            font-weight: 600;
+                            margin-bottom: 2px;
+                            color: var(--accent-color);
+                        }
+
+                        .time {
+                            font-size: 12px;
+                            color: var(--text-tertiary);
+                        }
+                    }
+                }
+
+                .post-body {
+                    margin-bottom: 16px;
+
+                    .post-text {
+                        margin-bottom: 12px;
+                        white-space: pre-wrap;
+                        line-height: 1.6;
+                        font-size: 15px;
+                        word-break: break-word;
+                    }
+
+                    .post-media-grid {
+                        display: grid;
+                        gap: 4px;
+                        width: fit-content;
+                        max-width: 100%;
+
+                        &.media-count-1 {
+                            grid-template-columns: 1fr;
+
+                            .media-item {
+                                max-width: 400px;
+                                aspect-ratio: unset;
+                            }
+
+                            img {
+                                height: auto;
+                                max-height: 500px;
+                            }
+                        }
+
+                        &.media-count-2,
+                        &.media-count-4 {
+                            grid-template-columns: repeat(2, 1fr);
+                        }
+
+                        &.media-count-3,
+                        &.media-count-5,
+                        &.media-count-6,
+                        &.media-count-7,
+                        &.media-count-8,
+                        &.media-count-9 {
+                            grid-template-columns: repeat(3, 1fr);
+                        }
+
+                        .media-item {
+                            aspect-ratio: 1;
+                            background: var(--bg-tertiary);
+                            border-radius: 4px;
+                            overflow: hidden;
+                            display: flex;
+                            align-items: center;
+                            justify-content: center;
+
+                            &.error {
+                                background: transparent;
+                                border: 1px dashed var(--border-color);
+                                color: var(--text-tertiary);
+                                font-size: 12px;
+                                min-width: 100px;
+                                min-height: 100px;
+                            }
+
+                            img {
+                                width: 100%;
+                                height: 100%;
+                                object-fit: cover;
+                                cursor: pointer;
+                                transition: opacity 0.2s;
+
+                                &:hover {
+                                    opacity: 0.85;
+                                }
+                            }
+                        }
+                    }
+
+                    .post-video-placeholder {
+                        display: inline-flex;
+                        align-items: center;
+                        background: rgba(var(--accent-color-rgb), 0.1);
+                        color: var(--accent-color);
+                        padding: 6px 12px;
+                        border-radius: 6px;
+                        font-size: 14px;
+                        font-weight: 500;
+                        margin-bottom: 8px;
+                    }
+                }
+
+                .post-footer {
+                    background: var(--bg-tertiary);
+                    border-radius: 6px;
+                    padding: 10px 12px;
+                    font-size: 13.5px;
+
+                    .likes-section {
+                        display: flex;
+                        align-items: flex-start;
+                        color: var(--accent-color);
+                        padding-bottom: 8px;
+                        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
+                        margin-bottom: 8px;
+
+                        &:last-child {
+                            padding-bottom: 0;
+                            border-bottom: none;
+                            margin-bottom: 0;
+                        }
+
+                        .icon {
+                            margin-top: 3.5px;
+                            margin-right: 8px;
+                            flex-shrink: 0;
+                        }
+
+                        .likes-list {
+                            line-height: 1.5;
+                        }
+                    }
+
+                    .comments-section {
+                        .comment-item {
+                            margin-bottom: 6px;
+                            line-height: 1.5;
+
+                            &:last-child {
+                                margin-bottom: 0;
+                            }
+
+                            .comment-user {
+                                color: var(--accent-color);
+                                font-weight: 600;
+                                cursor: pointer;
+
+                                &:hover {
+                                    text-decoration: underline;
+                                }
+                            }
+
+                            .reply-text {
+                                color: var(--text-tertiary);
+                                margin: 0 4px;
+                                font-size: 13px;
+                            }
+
+                            .comment-separator {
+                                color: var(--text-secondary);
+                                margin-left: -2px;
+                                margin-right: 4px;
+                            }
+
+                            .comment-content {
+                                color: var(--text-secondary);
+                            }
+                        }
+                    }
+                }
+            }
+
+            .loading-more,
+            .no-more,
+            .no-results {
+                text-align: center;
+                padding: 40px 20px;
+                color: var(--text-tertiary);
+                font-size: 14px;
+
+                .reset-inline {
+                    margin-top: 12px;
+                    background: var(--accent-color);
+                    color: white;
+                    border: none;
+                    padding: 8px 20px;
+                    border-radius: 6px;
+                    cursor: pointer;
+                    font-size: 13px;
+                    box-shadow: 0 2px 6px rgba(var(--accent-color-rgb), 0.3);
+                }
+            }
+        }
+    }
+}
+
+@keyframes spin {
+    from {
+        transform: rotate(0deg);
+    }
+
+    to {
+        transform: rotate(360deg);
+    }
+}

src/pages/SnsPage.tsx

@@ -0,0 +1,421 @@
+import { useEffect, useState, useRef, useCallback } from 'react'
+import { RefreshCw, Heart, Search, Calendar, User, X, Filter } from 'lucide-react'
+import { Avatar } from '../components/Avatar'
+import { ImagePreview } from '../components/ImagePreview'
+import './SnsPage.scss'
+
+interface SnsPost {
+    id: string
+    username: string
+    nickname: string
+    avatarUrl?: string
+    createTime: number
+    contentDesc: string
+    type?: number
+    media: { url: string; thumb: string }[]
+    likes: string[]
+    comments: { id: string; nickname: string; content: string; refCommentId: string; refNickname?: string }[]
+}
+
+const MediaItem = ({ url, thumb, onPreview }: { url: string, thumb: string, onPreview: () => void }) => {
+    const [error, setError] = useState(false);
+
+    if (error) {
+        return (
+            <div className="media-item error">
+                <span>无法加载</span>
+            </div>
+        );
+    }
+
+    return (
+        <div className="media-item">
+            <img
+                src={thumb || url}
+                alt=""
+                loading="lazy"
+                onClick={onPreview}
+                onError={() => setError(true)}
+            />
+        </div>
+    );
+};
+
+interface Contact {
+    username: string
+    displayName: string
+    avatarUrl?: string
+}
+
+export default function SnsPage() {
+    const [posts, setPosts] = useState<SnsPost[]>([])
+    const [loading, setLoading] = useState(false)
+    const [offset, setOffset] = useState(0)
+    const [hasMore, setHasMore] = useState(true)
+    const loadingRef = useRef(false)
+
+    // 筛选与搜索状态
+    const [searchKeyword, setSearchKeyword] = useState('')
+    const [selectedUsernames, setSelectedUsernames] = useState<string[]>([])
+    const [startDate, setStartDate] = useState('')
+    const [endDate, setEndDate] = useState('')
+    const [isSidebarOpen, setIsSidebarOpen] = useState(true)
+
+    // 联系人列表状态
+    const [contacts, setContacts] = useState<Contact[]>([])
+    const [contactSearch, setContactSearch] = useState('')
+    const [contactsLoading, setContactsLoading] = useState(false)
+    const [previewImage, setPreviewImage] = useState<string | null>(null)
+
+    const loadPosts = useCallback(async (reset = false) => {
+        if (loadingRef.current) return
+        loadingRef.current = true
+        setLoading(true)
+
+        try {
+            const currentOffset = reset ? 0 : offset
+            const limit = 20
+
+            // 转换日期为秒级时间戳
+            const startTs = startDate ? Math.floor(new Date(startDate).getTime() / 1000) : undefined
+            const endTs = endDate ? Math.floor(new Date(endDate).getTime() / 1000) + 86399 : undefined // 包含当天
+
+            const result = await window.electronAPI.sns.getTimeline(
+                limit,
+                currentOffset,
+                selectedUsernames,
+                searchKeyword,
+                startTs,
+                endTs
+            )
+
+            if (result.success && result.timeline) {
+                if (reset) {
+                    setPosts(result.timeline)
+                    setOffset(limit)
+                    setHasMore(result.timeline.length >= limit)
+                } else {
+                    setPosts(prev => [...prev, ...result.timeline!])
+                    setOffset(prev => prev + limit)
+                    if (result.timeline.length < limit) {
+                        setHasMore(false)
+                    }
+                }
+            }
+        } catch (error) {
+            console.error('Failed to load SNS timeline:', error)
+        } finally {
+            setLoading(false)
+            loadingRef.current = false
+        }
+    }, [offset, selectedUsernames, searchKeyword, startDate, endDate])
+
+    // 获取联系人列表
+    const loadContacts = async () => {
+        setContactsLoading(true)
+        try {
+            const result = await window.electronAPI.chat.getSessions()
+            if (result.success && result.sessions) {
+                // 系统账号和特殊前缀
+                const systemAccounts = ['filehelper', 'fmessage', 'newsapp', 'weixin', 'qqmail', 'tmessage', 'floatbottle', 'medianote', 'brandsessionholder'];
+
+                // 初步提取并过滤联系人
+                const initialContacts = result.sessions
+                    .filter((s: any) => {
+                        if (!s.username) return false;
+                        const u = s.username.toLowerCase();
+
+                        // 1. 排除群聊 (WeChat 群组以 @chatroom 结尾)
+                        if (u.includes('@chatroom') || u.endsWith('@chatroom') || u.endsWith('@openim')) {
+                            return false;
+                        }
+
+                        // 2. 排除公众号 (通常以 gh_ 开头)
+                        if (u.startsWith('gh_')) {
+                            return false;
+                        }
+
+                        // 3. 排除系统账号
+                        if (systemAccounts.includes(u) || u.includes('helper') || u.includes('sessionholder')) {
+                            return false;
+                        }
+
+                        return true;
+                    })
+                    .map((s: any) => ({
+                        username: s.username,
+                        displayName: s.displayName || s.username,
+                        avatarUrl: s.avatarUrl
+                    }))
+                setContacts(initialContacts)
+
+                // 异步进一步富化（获取更多准确的昵称和头像）
+                const usernames = initialContacts.map(c => c.username)
+                const enriched = await window.electronAPI.chat.enrichSessionsContactInfo(usernames)
+                if (enriched.success && enriched.contacts) {
+                    setContacts(prev => prev.map(c => {
+                        const extra = enriched.contacts![c.username]
+                        if (extra) {
+                            return {
+                                ...c,
+                                displayName: extra.displayName || c.displayName,
+                                avatarUrl: extra.avatarUrl || c.avatarUrl
+                            }
+                        }
+                        return c
+                    }))
+                }
+            }
+        } catch (error) {
+            console.error('Failed to load contacts:', error)
+        } finally {
+            setContactsLoading(false)
+        }
+    }
+
+    useEffect(() => {
+        loadContacts()
+    }, [])
+
+    useEffect(() => {
+        loadPosts(true)
+    }, [selectedUsernames, searchKeyword, startDate, endDate])
+
+    const handleScroll = (e: React.UIEvent<HTMLDivElement>) => {
+        const { scrollTop, clientHeight, scrollHeight } = e.currentTarget
+        if (scrollHeight - scrollTop - clientHeight < 200 && hasMore && !loading) {
+            loadPosts()
+        }
+    }
+
+    const formatTime = (ts: number) => {
+        const date = new Date(ts * 1000)
+        const isCurrentYear = date.getFullYear() === new Date().getFullYear()
+
+        return date.toLocaleString('zh-CN', {
+            year: isCurrentYear ? undefined : 'numeric',
+            month: 'short',
+            day: 'numeric',
+            hour: '2-digit',
+            minute: '2-digit'
+        })
+    }
+
+    const toggleUserSelection = (username: string) => {
+        setSelectedUsernames(prev => {
+            if (prev.includes(username)) {
+                return prev.filter(u => u !== username)
+            } else {
+                return [...prev, username]
+            }
+        })
+    }
+
+    const clearFilters = () => {
+        setSearchKeyword('')
+        setSelectedUsernames([])
+        setStartDate('')
+        setEndDate('')
+    }
+
+    const filteredContacts = contacts.filter(c =>
+        c.displayName.toLowerCase().includes(contactSearch.toLowerCase()) ||
+        c.username.toLowerCase().includes(contactSearch.toLowerCase())
+    )
+
+    return (
+        <div className="sns-page">
+            <div className="sns-container">
+                {/* 侧边栏：过滤与搜索 */}
+                <aside className={`sns-sidebar ${isSidebarOpen ? 'open' : 'closed'}`}>
+                    <div className="sidebar-header">
+                        <h3>朋友圈筛选</h3>
+                        <button className="toggle-btn" onClick={() => setIsSidebarOpen(false)}>
+                            <X size={18} />
+                        </button>
+                    </div>
+
+                    <div className="filter-content">
+                        {/* 关键词与时间 */}
+                        <div className="filter-group">
+                            <div className="filter-section">
+                                <label><Search size={14} /> 关键词内容</label>
+                                <input
+                                    type="text"
+                                    placeholder="搜索正文..."
+                                    value={searchKeyword}
+                                    onChange={e => setSearchKeyword(e.target.value)}
+                                />
+                            </div>
+
+                            <div className="filter-section">
+                                <label><Calendar size={14} /> 时间范围</label>
+                                <div className="date-inputs">
+                                    <input
+                                        type="date"
+                                        value={startDate}
+                                        onChange={e => setStartDate(e.target.value)}
+                                    />
+                                    <span>至</span>
+                                    <input
+                                        type="date"
+                                        value={endDate}
+                                        onChange={e => setEndDate(e.target.value)}
+                                    />
+                                </div>
+                            </div>
+                        </div>
+
+                        {/* 联系人列表 */}
+                        <div className="contact-filter-section">
+                            <div className="section-header">
+                                <label><User size={14} /> 联系人筛选</label>
+                                {selectedUsernames.length > 0 && (
+                                    <span className="selected-count">已选 {selectedUsernames.length}</span>
+                                )}
+                            </div>
+                            <div className="contact-search">
+                                <Search size={12} className="search-icon" />
+                                <input
+                                    type="text"
+                                    placeholder="搜索好友..."
+                                    value={contactSearch}
+                                    onChange={e => setContactSearch(e.target.value)}
+                                />
+                            </div>
+                            <div className="contact-list custom-scrollbar">
+                                {filteredContacts.map(contact => (
+                                    <div
+                                        key={contact.username}
+                                        className={`contact-item ${selectedUsernames.includes(contact.username) ? 'active' : ''}`}
+                                        onClick={() => toggleUserSelection(contact.username)}
+                                    >
+                                        <Avatar src={contact.avatarUrl} name={contact.displayName} size={28} shape="rounded" />
+                                        <span className="contact-name">{contact.displayName}</span>
+                                        {selectedUsernames.includes(contact.username) && (
+                                            <div className="check-mark">✓</div>
+                                        )}
+                                    </div>
+                                ))}
+                                {contacts.length === 0 && !contactsLoading && (
+                                    <div className="empty-contacts">无可显示联系人</div>
+                                )}
+                            </div>
+                        </div>
+                    </div>
+
+                    <div className="sidebar-footer">
+                        <button className="clear-btn" onClick={clearFilters}>清除全部筛选</button>
+                    </div>
+                </aside>
+
+                <main className="sns-main">
+                    <div className="sns-header">
+                        <div className="header-left">
+                            {!isSidebarOpen && (
+                                <button className="icon-btn" onClick={() => setIsSidebarOpen(true)}>
+                                    <Filter size={20} />
+                                </button>
+                            )}
+                            <h2>朋友圈</h2>
+                        </div>
+                        <div className="header-right">
+                            <button onClick={() => loadPosts(true)} disabled={loading} className="icon-btn refresh-btn">
+                                <RefreshCw size={18} className={loading ? 'spinning' : ''} />
+                            </button>
+                        </div>
+                    </div>
+
+                    <div className="sns-content" onScroll={handleScroll}>
+                        {selectedUsernames.length > 0 && (
+                            <div className="active-filters">
+                                <span>筛选中: {selectedUsernames.length} 位好友</span>
+                                <button onClick={() => setSelectedUsernames([])} className="clear-chip-btn">清除</button>
+                            </div>
+                        )}
+
+                        {posts.map(post => (
+                            <div key={post.id} className="sns-post">
+                                <div className="post-header">
+                                    <Avatar
+                                        src={post.avatarUrl}
+                                        name={post.nickname}
+                                        size={44}
+                                        shape="rounded"
+                                    />
+                                    <div className="post-info">
+                                        <div className="nickname">{post.nickname}</div>
+                                        <div className="time">{formatTime(post.createTime)}</div>
+                                    </div>
+                                </div>
+
+                                <div className="post-body">
+                                    {post.contentDesc && <div className="post-text">{post.contentDesc}</div>}
+
+                                    {post.type === 15 ? (
+                                        <div className="post-video-placeholder">
+                                            [视频]
+                                        </div>
+                                    ) : post.media.length > 0 && (
+                                        <div className={`post-media-grid media-count-${Math.min(post.media.length, 9)}`}>
+                                            {post.media.map((m, idx) => (
+                                                <MediaItem key={idx} url={m.url} thumb={m.thumb} onPreview={() => setPreviewImage(m.url)} />
+                                            ))}
+                                        </div>
+                                    )}
+                                </div>
+
+                                {(post.likes.length > 0 || post.comments.length > 0) && (
+                                    <div className="post-footer">
+                                        {post.likes.length > 0 && (
+                                            <div className="likes-section">
+                                                <Heart size={14} className="icon" />
+                                                <span className="likes-list">
+                                                    {post.likes.join('、')}
+                                                </span>
+                                            </div>
+                                        )}
+
+                                        {post.comments.length > 0 && (
+                                            <div className="comments-section">
+                                                {post.comments.map((c, idx) => (
+                                                    <div key={idx} className="comment-item">
+                                                        <span className="comment-user">{c.nickname}</span>
+                                                        {c.refNickname && (
+                                                            <>
+                                                                <span className="reply-text">回复</span>
+                                                                <span className="comment-user">{c.refNickname}</span>
+                                                            </>
+                                                        )}
+                                                        <span className="comment-separator">: </span>
+                                                        <span className="comment-content">{c.content}</span>
+                                                    </div>
+                                                ))}
+                                            </div>
+                                        )}
+                                    </div>
+                                )}
+                            </div>
+                        ))}
+
+                        {loading && <div className="loading-more">加载中...</div>}
+                        {!hasMore && posts.length > 0 && <div className="no-more">没有更多了</div>}
+                        {!loading && posts.length === 0 && (
+                            <div className="no-results">
+                                <p>没有找到符合条件的朋友圈</p>
+                                {selectedUsernames.length > 0 && (
+                                    <button onClick={() => setSelectedUsernames([])} className="reset-inline">
+                                        清除人员筛选
+                                    </button>
+                                )}
+                            </div>
+                        )}
+                    </div>
+                </main>
+            </div>
+            {previewImage && (
+                <ImagePreview src={previewImage} onClose={() => setPreviewImage(null)} />
+            )}
+        </div>
+    )
+}

src/pages/WelcomePage.tsx

@@ -441,7 +441,7 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
                   <FolderOpen size={16} /> 浏览选择
                 </button>
               </div>
-              <div className="field-hint">建议选择包含 xwechat_files 的目录</div>
+              <div className="field-hint">请选择微信-设置-存储位置对应的目录</div>
               <div className="field-hint" style={{ color: '#ff6b6b', marginTop: '4px' }}>⚠️ 目录路径不可包含中文，如有中文请去微信-设置-存储位置点击更改，迁移至全英文目录</div>
             </div>
           )}
@@ -507,7 +507,7 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
 
               {dbKeyStatus && <div className="field-hint status-text">{dbKeyStatus}</div>}
               <div className="field-hint">获取密钥会自动识别最近登录的账号</div>
-              <div className="field-hint">点击自动获取后微信将重新启动，当页面提示可以登录微信了再点击登录</div>
+              <div className="field-hint">点击自动获取后微信将重新启动，当页面提示<span style={{color: 'red'}}>hook安装成功，现在登录微信</span>后再点击登录</div>
             </div>
           )}
 
@@ -533,7 +533,7 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
                 {isFetchingImageKey ? '获取中...' : '自动获取图片密钥'}
               </button>
               {imageKeyStatus && <div className="field-hint status-text">{imageKeyStatus}</div>}
-              <div className="field-hint">如获取失败，请先打开朋友圈图片再重试</div>
+              <div className="field-hint">请在电脑微信中打开查看几个图片后再点击获取秘钥，如获取失败请重复以上操作</div>
               {isFetchingImageKey && <div className="field-hint status-text">正在扫描内存，请稍候...</div>}
             </div>
           )}

src/services/config.ts

@@ -27,7 +27,8 @@ export const CONFIG_KEYS = {
   EXPORT_DEFAULT_DATE_RANGE: 'exportDefaultDateRange',
   EXPORT_DEFAULT_MEDIA: 'exportDefaultMedia',
   EXPORT_DEFAULT_VOICE_AS_TEXT: 'exportDefaultVoiceAsText',
-  EXPORT_DEFAULT_EXCEL_COMPACT_COLUMNS: 'exportDefaultExcelCompactColumns'
+  EXPORT_DEFAULT_EXCEL_COMPACT_COLUMNS: 'exportDefaultExcelCompactColumns',
+  EXPORT_DEFAULT_TXT_COLUMNS: 'exportDefaultTxtColumns'
 } as const
 
 // 获取解密密钥
@@ -306,3 +307,14 @@ export async function getExportDefaultExcelCompactColumns(): Promise<boolean | n
 export async function setExportDefaultExcelCompactColumns(enabled: boolean): Promise<void> {
   await config.set(CONFIG_KEYS.EXPORT_DEFAULT_EXCEL_COMPACT_COLUMNS, enabled)
 }
+
+// 获取导出默认 TXT 列配置
+export async function getExportDefaultTxtColumns(): Promise<string[] | null> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_DEFAULT_TXT_COLUMNS)
+  return Array.isArray(value) ? (value as string[]) : null
+}
+
+// 设置导出默认 TXT 列配置
+export async function setExportDefaultTxtColumns(columns: string[]): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_DEFAULT_TXT_COLUMNS, columns)
+}

src/stores/chatStore.ts

@@ -18,6 +18,7 @@ export interface ChatState {
   isLoadingMessages: boolean
   isLoadingMore: boolean
   hasMoreMessages: boolean
+  hasMoreLater: boolean
 
   // 联系人缓存
   contacts: Map<string, Contact>
@@ -38,6 +39,7 @@ export interface ChatState {
   setLoadingMessages: (loading: boolean) => void
   setLoadingMore: (loading: boolean) => void
   setHasMoreMessages: (hasMore: boolean) => void
+  setHasMoreLater: (hasMore: boolean) => void
   setContacts: (contacts: Contact[]) => void
   addContact: (contact: Contact) => void
   setSearchKeyword: (keyword: string) => void
@@ -56,6 +58,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
   isLoadingMessages: false,
   isLoadingMore: false,
   hasMoreMessages: true,
+  hasMoreLater: false,
   contacts: new Map(),
   searchKeyword: '',
 
@@ -69,7 +72,8 @@ export const useChatStore = create<ChatState>((set, get) => ({
   setCurrentSession: (sessionId) => set({
     currentSessionId: sessionId,
     messages: [],
-    hasMoreMessages: true
+    hasMoreMessages: true,
+    hasMoreLater: false
   }),
 
   setLoadingSessions: (loading) => set({ isLoadingSessions: loading }),
@@ -85,6 +89,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
   setLoadingMessages: (loading) => set({ isLoadingMessages: loading }),
   setLoadingMore: (loading) => set({ isLoadingMore: loading }),
   setHasMoreMessages: (hasMore) => set({ hasMoreMessages: hasMore }),
+  setHasMoreLater: (hasMore) => set({ hasMoreLater: hasMore }),
 
   setContacts: (contacts) => set({
     contacts: new Map(contacts.map(c => [c.username, c]))
@@ -110,6 +115,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
     isLoadingMessages: false,
     isLoadingMore: false,
     hasMoreMessages: true,
+    hasMoreLater: false,
     contacts: new Map(),
     searchKeyword: ''
   })

src/types/electron.d.ts

@@ -63,7 +63,7 @@ export interface ElectronAPI {
       contacts?: Record<string, { displayName?: string; avatarUrl?: string }>
       error?: string
     }>
-    getMessages: (sessionId: string, offset?: number, limit?: number) => Promise<{
+    getMessages: (sessionId: string, offset?: number, limit?: number, startTime?: number, endTime?: number, ascending?: boolean) => Promise<{
       success: boolean;
       messages?: Message[];
       hasMore?: boolean;
@@ -314,12 +314,31 @@ export interface ElectronAPI {
       success: boolean
       error?: string
     }>
+    onProgress: (callback: (payload: ExportProgress) => void) => () => void
   }
   whisper: {
     downloadModel: () => Promise<{ success: boolean; modelPath?: string; tokensPath?: string; error?: string }>
     getModelStatus: () => Promise<{ success: boolean; exists?: boolean; modelPath?: string; tokensPath?: string; sizeBytes?: number; error?: string }>
     onDownloadProgress: (callback: (payload: { modelName: string; downloadedBytes: number; totalBytes?: number; percent?: number }) => void) => () => void
   }
+  sns: {
+    getTimeline: (limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number) => Promise<{
+      success: boolean
+      timeline?: Array<{
+        id: string
+        username: string
+        nickname: string
+        avatarUrl?: string
+        createTime: number
+        contentDesc: string
+        type?: number
+        media: Array<{ url: string; thumb: string }>
+        likes: Array<string>
+        comments: Array<{ id: string; nickname: string; content: string; refCommentId: string; refNickname?: string }>
+      }>
+      error?: string
+    }>
+  }
 }
 
 export interface ExportOptions {
@@ -332,6 +351,15 @@ export interface ExportOptions {
   exportEmojis?: boolean
   exportVoiceAsText?: boolean
   excelCompactColumns?: boolean
+  txtColumns?: string[]
+  sessionLayout?: 'shared' | 'per-session'
+}
+
+export interface ExportProgress {
+  current: number
+  total: number
+  currentSession: string
+  phase: 'preparing' | 'exporting' | 'writing' | 'complete'
 }
 
 export interface WxidInfo {