diff --git a/app.json b/app.json
index 5529d14..065be4f 100644
--- a/app.json
+++ b/app.json
@@ -25,7 +25,7 @@
         ],
         "ITSAppUsesNonExemptEncryption": false
       },
-      "bundleIdentifier": "cn.qczlit.withyou"
+      "bundleIdentifier": "cn.qczlit.weiyou"
     },
     "android": {
       "adaptiveIcon": {
@@ -66,6 +66,7 @@
       "favicon": "./assets/favicon.png"
     },
     "plugins": [
+      "./plugins/withSigning",
       "./plugins/withMainActivityConfigChange",
       [
         "./plugins/withForegroundService",
diff --git a/app/_layout.tsx b/app/_layout.tsx
index e854b2b..6c01cda 100644
--- a/app/_layout.tsx
+++ b/app/_layout.tsx
@@ -161,6 +161,7 @@ function NotificationBootstrap() {
           const conversationType = extras.conversation_type || extras.conversationType;
           const groupId = extras.group_id || extras.groupId;
           const groupName = extras.group_name || extras.groupName;
+          const groupAvatar = extras.group_avatar || extras.groupAvatar;
 
           if (conversationId) {
             const isGroup = conversationType === 'group';
@@ -169,6 +170,7 @@ function NotificationBootstrap() {
               q.set('isGroupChat', '1');
               if (groupId) q.set('groupId', groupId);
               if (groupName) q.set('groupName', groupName);
+              if (groupAvatar) q.set('groupAvatar', groupAvatar);
             } else if (senderId) {
               q.set('userId', senderId);
             }
diff --git a/assets/android-icon-foreground.png b/assets/android-icon-foreground.png
index 89396dd..751751e 100644
Binary files a/assets/android-icon-foreground.png and b/assets/android-icon-foreground.png differ
diff --git a/assets/android-icon-monochrome.png b/assets/android-icon-monochrome.png
index 89396dd..751751e 100644
Binary files a/assets/android-icon-monochrome.png and b/assets/android-icon-monochrome.png differ
diff --git a/plugins/withJPush.js b/plugins/withJPush.js
index 6893fde..fee1262 100644
--- a/plugins/withJPush.js
+++ b/plugins/withJPush.js
@@ -95,7 +95,116 @@ const withJPush = (config, options = {}) => {
   config = withAppDelegate(config, (config) => {
     const { contents } = config.modResults;
 
-    if (!contents.includes('JPush')) {
+    if (contents.includes('JPush') || contents.includes('JCoreModule')) {
+      return config;
+    }
+
+    const isSwift = contents.includes('class AppDelegate') || contents.includes('@main');
+
+    if (isSwift) {
+      let newContents = contents;
+
+      if (!newContents.includes('import JPushRN')) {
+        if (newContents.includes('import UIKit')) {
+          newContents = newContents.replace(
+            /(import UIKit\n)/,
+            `$1import UserNotifications\n`
+          );
+        } else {
+          newContents = newContents.replace(
+            /(internal import Expo\n)/,
+            `$1import UserNotifications\n`
+          );
+        }
+      }
+
+      // Swift: Add JPush init in application(_:didFinishLaunchingWithOptions:)
+      // Match various Swift signatures
+      const swiftDidFinishPatterns = [
+        /public override func application\(\s*_ application: UIApplication,\s*didFinishLaunchingWithOptions launchOptions: \[UIApplication\.LaunchOptionsKey: Any\]\? = nil\s*\) -> Bool \{/,
+        /func application\(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: \[UIApplication\.LaunchOptionsKey: Any\]\?\?\) -> Bool \{/,
+      ];
+
+      let didInsertInit = false;
+      for (const pattern of swiftDidFinishPatterns) {
+        if (pattern.test(newContents)) {
+          newContents = newContents.replace(
+            pattern,
+            `$&\n    // JPush initialization\n    #if DEBUG\n    JCoreModule.setup(withOption: launchOptions, appKey: "${appKey}", channel: "${channel}", apsForProduction: false)\n    #else\n    JCoreModule.setup(withOption: launchOptions, appKey: "${appKey}", channel: "${channel}", apsForProduction: true)\n    #endif`
+          );
+          didInsertInit = true;
+          break;
+        }
+      }
+
+      // Fallback: find the didFinishLaunchingWithOptions method start and insert after the opening brace
+      if (!didInsertInit && newContents.includes('didFinishLaunchingWithOptions')) {
+        const lines = newContents.split('\n');
+        for (let i = 0; i < lines.length; i++) {
+          if (lines[i].includes('didFinishLaunchingWithOptions') && lines[i].includes('{')) {
+            lines.splice(i + 1, 0,
+              '    // JPush initialization',
+              '    #if DEBUG',
+              `    JPUSHService.setup(withOption: launchOptions, appKey: "${appKey}", channel: "${channel}", apsForProduction: false)`,
+              '    #else',
+              `    JPUSHService.setup(withOption: launchOptions, appKey: "${appKey}", channel: "${channel}", apsForProduction: true)`,
+              '    #endif',
+              '    UNUserNotificationCenter.current().delegate = self'
+            );
+            newContents = lines.join('\n');
+            didInsertInit = true;
+            break;
+          }
+        }
+      }
+
+      // Also add delegate = self after regex-based insertion if not already present
+      if (didInsertInit && !newContents.includes('UNUserNotificationCenter.current().delegate')) {
+        newContents = newContents.replace(
+          /(#endif\n)(\s+let delegate)/,
+          `$1    UNUserNotificationCenter.current().delegate = self\n$2`
+        );
+      }
+
+      // Swift: Add delegate methods before the closing brace of the class
+      const jpushSwiftMethods = `
+  // JPush: Register for remote notifications
+  override func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
+    JPUSHService.registerDeviceToken(deviceToken)
+  }
+
+  override func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
+    NSLog("did fail to register for remote notifications with error: %@", error.localizedDescription)
+  }
+
+  // JPush: Handle remote notification
+  override func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
+    JPUSHService.handleRemoteNotification(userInfo)
+    completionHandler(.newData)
+  }
+
+  // UNUserNotificationCenter delegate: foreground notification display
+  func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+    completionHandler([.alert, .badge, .sound])
+  }
+
+  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
+    JPUSHService.handleRemoteNotification(response.notification.request.content.userInfo)
+    completionHandler()
+  }
+`;
+
+      if (!newContents.includes('JPUSHService.registerDeviceToken')) {
+        // Find the closing brace of the AppDelegate class
+        const lastBraceIndex = newContents.lastIndexOf('}');
+        if (lastBraceIndex !== -1) {
+          newContents = newContents.slice(0, lastBraceIndex) + jpushSwiftMethods + '\n' + newContents.slice(lastBraceIndex);
+        }
+      }
+
+      config.modResults.contents = newContents;
+    } else {
+      // ObjC AppDelegate
       let newContents = contents;
 
       if (!newContents.includes('#import <UserNotifications/UserNotifications.h>')) {
@@ -116,7 +225,7 @@ const withJPush = (config, options = {}) => {
       if (didFinishLaunchPattern.test(newContents)) {
         newContents = newContents.replace(
           didFinishLaunchPattern,
-          `$1\n  // JPush initialization\n  [JCoreModule setupWithOption:launchOptions appKey:@"${appKey}" channel:@"${channel}" apsForProduction:NO];\n`
+          `$1\n  // JPush initialization\n  #if DEBUG\n  [JCoreModule setupWithOption:launchOptions appKey:@"${appKey}" channel:@"${channel}" apsForProduction:NO];\n  #else\n  [JCoreModule setupWithOption:launchOptions appKey:@"${appKey}" channel:@"${channel}" apsForProduction:YES];\n  #endif\n`
         );
       }
 
@@ -160,7 +269,26 @@ const withJPush = (config, options = {}) => {
     return config;
   });
 
-  // 4. iOS: Add required capabilities and permissions to Info.plist
+  // 4. iOS: Add bridging header for Swift if needed
+  config = withDangerousMod(config, [
+    'ios',
+    async (config) => {
+      const appDelegatePath = path.join(config.modRequest.platformProjectRoot, 'app', 'AppDelegate.swift');
+      if (fs.existsSync(appDelegatePath)) {
+        const bridgingHeaderSearch = path.join(config.modRequest.platformProjectRoot, 'app', 'app-Bridging-Header.h');
+        if (fs.existsSync(bridgingHeaderSearch)) {
+          let bridgingContent = fs.readFileSync(bridgingHeaderSearch, 'utf-8');
+          if (!bridgingContent.includes('JCoreModule')) {
+            bridgingContent += '\n#import "JPUSHService.h"\n#import <UserNotifications/UserNotifications.h>\n';
+            fs.writeFileSync(bridgingHeaderSearch, bridgingContent);
+          }
+        }
+      }
+      return config;
+    },
+  ]);
+
+  // 5. iOS: Add required capabilities and permissions to Info.plist
   config = withInfoPlist(config, (config) => {
     config.modResults.UIBackgroundModes = config.modResults.UIBackgroundModes || [];
     if (!config.modResults.UIBackgroundModes.includes('remote-notification')) {
diff --git a/plugins/withSigning.js b/plugins/withSigning.js
new file mode 100644
index 0000000..56ae607
--- /dev/null
+++ b/plugins/withSigning.js
@@ -0,0 +1,41 @@
+const { withDangerousMod } = require('@expo/config-plugins');
+const fs = require('fs');
+const path = require('path');
+
+const withSigning = (config, options = {}) => {
+  const { teamId = 'X3964MGXHG' } = options;
+
+  config = withDangerousMod(config, [
+    'ios',
+    async (config) => {
+      const platformRoot = config.modRequest.platformProjectRoot;
+
+      // 1. Inject CODE_SIGN_STYLE and DEVELOPMENT_TEAM into pbxproj
+      const pbxprojPath = path.join(platformRoot, 'app.xcodeproj', 'project.pbxproj');
+      if (fs.existsSync(pbxprojPath)) {
+        let contents = fs.readFileSync(pbxprojPath, 'utf-8');
+        const entitlementsLine = 'CODE_SIGN_ENTITLEMENTS = app/app.entitlements;';
+        const signingBlock = `${entitlementsLine}\n\t\t\t\tCODE_SIGN_STYLE = Automatic;\n\t\t\t\tDEVELOPMENT_TEAM = ${teamId};`;
+        contents = contents.replaceAll(entitlementsLine, signingBlock);
+        fs.writeFileSync(pbxprojPath, contents);
+      }
+
+      // 2. Set aps-environment to production in entitlements
+      const entitlementsPath = path.join(platformRoot, 'app', 'app.entitlements');
+      if (fs.existsSync(entitlementsPath)) {
+        let entitlements = fs.readFileSync(entitlementsPath, 'utf-8');
+        entitlements = entitlements.replace(
+          /<key>aps-environment<\/key>\s*<string>development<\/string>/,
+          '<key>aps-environment</key>\n\t<string>production</string>'
+        );
+        fs.writeFileSync(entitlementsPath, entitlements);
+      }
+
+      return config;
+    },
+  ]);
+
+  return config;
+};
+
+module.exports = withSigning;
\ No newline at end of file
diff --git a/src/navigation/hrefs.ts b/src/navigation/hrefs.ts
index c960498..dae9ef8 100644
--- a/src/navigation/hrefs.ts
+++ b/src/navigation/hrefs.ts
@@ -86,13 +86,15 @@ export function hrefChat(params: {
   isGroupChat?: boolean;
   groupId?: string;
   groupName?: string;
+  groupAvatar?: string;
 }): string {
-  const { conversationId, userId, isGroupChat, groupId, groupName } = params;
+  const { conversationId, userId, isGroupChat, groupId, groupName, groupAvatar } = params;
   const q = new URLSearchParams();
   if (userId) q.set('userId', userId);
   if (isGroupChat) q.set('isGroupChat', '1');
   if (groupId != null && groupId !== '') q.set('groupId', String(groupId));
   if (groupName) q.set('groupName', groupName);
+  if (groupAvatar) q.set('groupAvatar', groupAvatar);
   const qs = q.toString();
   return `/chat/${encodeURIComponent(conversationId)}${qs ? `?${qs}` : ''}`;
 }
diff --git a/src/screens/message/ChatScreen.tsx b/src/screens/message/ChatScreen.tsx
index a6b1cec..ca0f92d 100644
--- a/src/screens/message/ChatScreen.tsx
+++ b/src/screens/message/ChatScreen.tsx
@@ -165,8 +165,8 @@ export const ChatScreen: React.FC<ChatScreenProps> = (props) => {
     muteAll,
     followRestrictionHint,
     canSendPrivateImage,
-    routeGroupId,
-    routeGroupName,
+    effectiveGroupId,
+    effectiveGroupName,
     otherUserLastReadSeq,
     messageMap,
     loadingMore,
@@ -458,7 +458,7 @@ export const ChatScreen: React.FC<ChatScreenProps> = (props) => {
         isGroupChat={isGroupChat}
         groupInfo={groupInfo}
         otherUser={otherUser}
-        routeGroupName={routeGroupName ?? undefined}
+        routeGroupName={effectiveGroupName ?? undefined}
         typingHint={typingHint}
         onBack={props.onEmbeddedBack ? props.onEmbeddedBack : () => router.back()}
         onTitlePress={navigateToInfo}
@@ -669,7 +669,7 @@ export const ChatScreen: React.FC<ChatScreenProps> = (props) => {
       {/* 群信息侧边栏面板 - 仅大屏幕显示 */}
         <GroupInfoPanel
           visible={showGroupInfoPanel}
-          groupId={routeGroupId ? String(routeGroupId) : undefined}
+          groupId={effectiveGroupId ? String(effectiveGroupId) : undefined}
           groupInfo={groupInfo as any}
           conversationId={conversationId || undefined}
           currentUserId={currentUserId}
diff --git a/src/screens/message/MessageListScreen.tsx b/src/screens/message/MessageListScreen.tsx
index 0e8fbed..6bccd59 100644
--- a/src/screens/message/MessageListScreen.tsx
+++ b/src/screens/message/MessageListScreen.tsx
@@ -285,6 +285,7 @@ export const MessageListScreen: React.FC = () => {
             conversationId: String(conversation.id),
             groupId: String(conversation.group.id),
             groupName: conversation.group.name,
+            groupAvatar: conversation.group.avatar,
             isGroupChat: true,
           })
         );
diff --git a/src/screens/message/components/ChatScreen/useChatScreen.ts b/src/screens/message/components/ChatScreen/useChatScreen.ts
index 5ebbc81..3266caf 100644
--- a/src/screens/message/components/ChatScreen/useChatScreen.ts
+++ b/src/screens/message/components/ChatScreen/useChatScreen.ts
@@ -96,6 +96,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     isGroupChat?: string | string[];
     groupId?: string | string[];
     groupName?: string | string[];
+    groupAvatar?: string | string[];
   }>();
   // 路由参数（动态段 + query）；群 ID 勿用 Number()，避免超过 2^53-1 时精度丢失
   // 嵌入式模式下优先使用 props，否则从路由参数获取
@@ -107,6 +108,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
         isGroupChat: props.embeddedIsGroupChat ?? false,
         groupId: props.embeddedGroupId ?? null,
         groupName: props.embeddedGroupName ?? null,
+        groupAvatar: null as string | null,
       };
     }
     const isGroupFlag = firstRouteParam(rawParams.isGroupChat);
@@ -116,6 +118,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
       isGroupChat: isGroupFlag === '1' || isGroupFlag === 'true',
       groupId: firstRouteParam(rawParams.groupId),
       groupName: firstRouteParam(rawParams.groupName),
+      groupAvatar: firstRouteParam(rawParams.groupAvatar),
     };
   }, [
     props?.embeddedConversationId,
@@ -127,9 +130,10 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     rawParams.isGroupChat,
     rawParams.groupId,
     rawParams.groupName,
+    rawParams.groupAvatar,
   ]);
 
-  const { conversationId: routeConversationId, userId: routeUserId, isGroupChat, groupId: routeGroupId, groupName: routeGroupName } = routeParams;
+  const { conversationId: routeConversationId, userId: routeUserId, isGroupChat, groupId: routeGroupId, groupName: routeGroupName, groupAvatar: routeGroupAvatar } = routeParams;
 
   // 当前会话ID（可能在新建私聊会话后动态更新）
   const [conversationId, setConversationId] = useState<string | null>(routeConversationId);
@@ -147,13 +151,18 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     conversation,
   } = useChat(conversationId);
 
+  // 统一入口：优先路由参数，其次从 conversation 对象提取（JPUSH 进入时 conversation 异步加载）
+  const effectiveGroupId = routeGroupId || (isGroupChat && conversation?.group?.id) || null;
+  const effectiveGroupName = routeGroupName || (isGroupChat && conversation?.group?.name) || null;
+  const effectiveGroupAvatar = routeGroupAvatar || (isGroupChat && conversation?.group?.avatar) || null;
+
   // 本地状态
   const [currentUserId, setCurrentUserId] = useState<string>('');
 
   // 【新架构】使用 MessageManager 获取群聊输入状态和禁言状态
-  const { typingUsers: groupTypingUsers } = useGroupTyping(routeGroupId ? String(routeGroupId) : null);
+  const { typingUsers: groupTypingUsers } = useGroupTyping(effectiveGroupId ? String(effectiveGroupId) : null);
   const { isMuted: isMutedFromManager, setMuted: setMutedStatus } = useGroupMuted(
-    routeGroupId ? String(routeGroupId) : null,
+    effectiveGroupId ? String(effectiveGroupId) : null,
     currentUserId
   );
 
@@ -202,8 +211,18 @@ export const useChatScreen = (props?: ChatScreenProps) => {
   const [selectedMessageId, setSelectedMessageId] = useState<string | null>(null);
 
   // 群聊相关状态
-  const [groupInfo, setGroupInfo] = useState<{ name?: string; member_count?: number } | null>(null);
+  const [groupInfo, setGroupInfo] = useState<{ name?: string; member_count?: number; avatar?: string | null } | null>(null);
   const [groupMembers, setGroupMembers] = useState<GroupMemberResponse[]>([]);
+
+  // 群名/头像：优先使用路由参数（JPUSH extras），其次从 conversation 对象获取
+  useEffect(() => {
+    if (!isGroupChat) return;
+    const name = effectiveGroupName;
+    const avatar = effectiveGroupAvatar;
+    if (name || avatar) {
+      setGroupInfo(prev => prev ? prev : { name: name || undefined, avatar: avatar || null });
+    }
+  }, [isGroupChat, effectiveGroupName, effectiveGroupAvatar]);
   const [currentUserRole, setCurrentUserRole] = useState<UserRole>('member');
   const [mentionQuery, setMentionQuery] = useState<string>('');
   const [selectedMentions, setSelectedMentions] = useState<string[]>([]);
@@ -453,14 +472,14 @@ export const useChatScreen = (props?: ChatScreenProps) => {
 
   // 群聊模式：获取群组信息和成员列表
   useEffect(() => {
-    if (!isGroupChat || !routeGroupId) return;
+    if (!isGroupChat || !effectiveGroupId) return;
 
     const fetchGroupInfo = async () => {
       try {
-        const group = await groupManager.getGroup(routeGroupId);
+        const group = await groupManager.getGroup(effectiveGroupId);
         setGroupInfo(group);
 
-        const membersResponse = await groupManager.getMembers(routeGroupId, 1, MEMBERS_PAGE_SIZE);
+        const membersResponse = await groupManager.getMembers(effectiveGroupId, 1, MEMBERS_PAGE_SIZE);
         const members = membersResponse.list || [];
         setGroupMembers(members);
 
@@ -470,7 +489,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
         }
 
         try {
-          const myInfo = await groupService.getMyMemberInfo(routeGroupId);
+          const myInfo = await groupService.getMyMemberInfo(effectiveGroupId);
           setIsMuted(myInfo.is_muted);
           setMutedStatus(myInfo.is_muted);
           setMuteAll(myInfo.mute_all);
@@ -508,7 +527,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     if (currentUserId) {
       fetchGroupInfo();
     }
-  }, [isGroupChat, routeGroupId, currentUserId, setMutedStatus]);
+  }, [isGroupChat, effectiveGroupId, currentUserId, setMutedStatus]);
 
   // 私聊模式：创建或获取会话
   useEffect(() => {
@@ -1066,7 +1085,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
         return;
       }
 
-      if (isGroupChat && routeGroupId) {
+      if (isGroupChat && effectiveGroupId) {
         await messageService.sendMessageByAction('group', conversationId, segments);
 
         setInputText('');
@@ -1097,7 +1116,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     pendingAttachments,
     conversationId,
     isGroupChat,
-    routeGroupId,
+    effectiveGroupId,
     sendMessageViaManager,
     isMuted,
     muteAll,
@@ -1264,7 +1283,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     try {
       const segments = buildImageSegments(stickerUrl, stickerUrl, undefined, undefined, replyingTo);
 
-      if (isGroupChat && routeGroupId) {
+      if (isGroupChat && effectiveGroupId) {
         await messageService.sendMessageByAction('group', conversationId, segments);
         setReplyingTo(null);
       } else {
@@ -1282,7 +1301,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     } finally {
       setSendingImage(false);
     }
-  }, [conversationId, isGroupChat, routeGroupId, sendMessageViaManager, isMuted, muteAll, buildImageSegments, replyingTo, canSendPrivateImage, scrollToLatest]);
+  }, [conversationId, isGroupChat, effectiveGroupId, sendMessageViaManager, isMuted, muteAll, buildImageSegments, replyingTo, canSendPrivateImage, scrollToLatest]);
 
   // 切换表情面板
   const toggleEmojiPanel = useCallback(() => {
@@ -1310,7 +1329,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
   // 撤回消息 - 现在通过 MessageManager 处理
   const handleRecall = useCallback(async (messageId: string) => {
     try {
-      if (isGroupChat && routeGroupId) {
+      if (isGroupChat && effectiveGroupId) {
         await messageService.recallMessage(messageId);
       } else {
         await messageService.recallMessage(messageId);
@@ -1320,7 +1339,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
       console.error('撤回消息失败:', error);
       Alert.alert('撤回失败', '无法撤回消息');
     }
-  }, [isGroupChat, routeGroupId, conversationId]);
+  }, [isGroupChat, effectiveGroupId, conversationId]);
 
   // 长按消息显示操作菜单
   const handleLongPressMessage = useCallback((message: GroupMessage, position?: MenuPosition) => {
@@ -1455,17 +1474,17 @@ export const useChatScreen = (props?: ChatScreenProps) => {
 
   // 导航到群组信息或用户资料
   const navigateToInfo = useCallback(() => {
-    if (isGroupChat && routeGroupId) {
-      router.push(hrefs.hrefGroupInfo(routeGroupId, conversationId || undefined));
+    if (isGroupChat && effectiveGroupId) {
+      router.push(hrefs.hrefGroupInfo(effectiveGroupId, conversationId || undefined));
     } else if (otherUser?.id) {
       router.push(hrefs.hrefUserProfile(String(otherUser.id)));
     }
-  }, [isGroupChat, routeGroupId, otherUser, conversationId]);
+  }, [isGroupChat, effectiveGroupId, otherUser, conversationId]);
 
   // 导航到聊天管理页面
   const navigateToChatSettings = useCallback(() => {
-    if (isGroupChat && routeGroupId) {
-      router.push(hrefs.hrefGroupInfo(routeGroupId, conversationId || undefined));
+    if (isGroupChat && effectiveGroupId) {
+      router.push(hrefs.hrefGroupInfo(effectiveGroupId, conversationId || undefined));
     } else if (otherUser?.id && conversationId) {
       router.push(
         hrefs.hrefPrivateChatInfo({
@@ -1476,7 +1495,7 @@ export const useChatScreen = (props?: ChatScreenProps) => {
         })
       );
     }
-  }, [isGroupChat, routeGroupId, otherUser, conversationId]);
+  }, [isGroupChat, effectiveGroupId, otherUser, conversationId]);
 
   return {
     // 状态
@@ -1512,8 +1531,8 @@ export const useChatScreen = (props?: ChatScreenProps) => {
     muteAll,
     followRestrictionHint,
     canSendPrivateImage,
-    routeGroupId,
-    routeGroupName,
+    effectiveGroupId,
+    effectiveGroupName,
     otherUserLastReadSeq,
     messageMap,
     loadingMore,
diff --git a/src/screens/profile/PrivacySettingsScreen.tsx b/src/screens/profile/PrivacySettingsScreen.tsx
index 2bae9c3..95c7925 100644
--- a/src/screens/profile/PrivacySettingsScreen.tsx
+++ b/src/screens/profile/PrivacySettingsScreen.tsx
@@ -333,7 +333,7 @@ export const PrivacySettingsScreen: React.FC = () => {
                               variant="body"
                               style={[
                                 styles.dropdownOptionText,
-                                isActive && styles.dropdownOptionTextActive,
+                                ...(isActive ? [styles.dropdownOptionTextActive] : []),
                               ]}
                             >
                               {option.label}
diff --git a/src/screens/profile/SettingsScreen.tsx b/src/screens/profile/SettingsScreen.tsx
index c5a3ea1..d13a0ae 100644
--- a/src/screens/profile/SettingsScreen.tsx
+++ b/src/screens/profile/SettingsScreen.tsx
@@ -408,7 +408,7 @@ export const SettingsScreen: React.FC = () => {
     <View
       key={group.title}
       style={[
-        { overflow: 'visible', zIndex: group.items.some((i) => i.isThemePicker && openPicker === 'theme') ? 10 : groupIndex },
+        { overflow: 'visible', zIndex: group.items.some((i) => 'isThemePicker' in i && i.isThemePicker && openPicker === 'theme') ? 10 : groupIndex },
       ]}
     >
       <View style={styles.groupHeader}>
diff --git a/src/services/message/messageService.ts b/src/services/message/messageService.ts
index b1863c3..2cacf0f 100644
--- a/src/services/message/messageService.ts
+++ b/src/services/message/messageService.ts
@@ -94,13 +94,6 @@ class MessageService {
     }
   }
 
-  private async refreshConversationsFromServer(
-    page = 1,
-    pageSize = 20
-  ): Promise<ConversationListResponse> {
-    return this.requestOffsetConversationsPage(page, pageSize);
-  }
-
   /**
    * 远端会话列表单页（offset / cursor 统一入口）
    * 两种模式均先写 SQLite 再返回，行为与 NetworkRemoteConversationListPagedSource 配套。
@@ -175,50 +168,6 @@ class MessageService {
     };
   }
 
-  // ==================== 会话相关 ====================
-
-  /**
-   * 获取会话列表
-   * GET /api/v1/conversations/list
-   */
-  async getConversations(
-    page = 1,
-    pageSize = 20,
-    forceRefresh = false
-  ): Promise<ConversationListResponse> {
-    // 如果强制刷新,直接从服务器获取,不使用缓存
-    if (!forceRefresh) {
-      const cachedList = await conversationRepository.getListCache();
-      if (cachedList.length > 0) {
-        // 后台刷新数据,但不阻塞当前返回
-        this.refreshConversationsFromServer(page, pageSize).catch(error => {
-          console.error('后台刷新会话列表失败:', error);
-        });
-        return {
-          list: cachedList,
-          total: cachedList.length,
-          page: 1,
-          page_size: cachedList.length,
-          total_pages: 1,
-        };
-      }
-    }
-
-    // 强制刷新或没有缓存时,直接从服务器获取
-    try {
-      return await this.refreshConversationsFromServer(page, pageSize);
-    } catch (error) {
-      console.error('获取会话列表失败:', error);
-      return {
-        list: [],
-        total: 0,
-        page: 1,
-        page_size: pageSize,
-        total_pages: 0,
-      };
-    }
-  }
-
   /**
    * 创建私聊会话
    * POST /api/v1/conversations
@@ -428,98 +377,6 @@ class MessageService {
     }
   }
 
-  /**
-   * 发送文本消息（便捷方法）
-   */
-  async sendTextMessage(
-    conversationId: string,
-    content: string,
-    detailType: 'private' | 'group' = 'private'
-  ): Promise<MessageResponse> {
-    return this.sendTextMessageByAction(detailType, conversationId, content);
-  }
-
-  /**
-   * 通过 HTTP POST 发送文本消息
-   * @param detailType 消息类型: 'private' 私聊, 'group' 群聊
-   * @param conversationId 会话ID
-   * @param text 文本内容
-   * @returns 消息响应
-   */
-  async sendTextMessageByAction(
-    detailType: 'private' | 'group',
-    conversationId: string,
-    text: string
-  ): Promise<MessageResponse> {
-    const message: MessageSegment[] = [
-      {
-        type: 'text',
-        data: {
-          text: text,
-        },
-      },
-    ];
-    return this.sendMessageByAction(detailType, conversationId, message);
-  }
-
-  /**
-   * 发送图片消息（便捷方法）
-   */
-  async sendImageMessage(
-    conversationId: string,
-    mediaUrl: string,
-    content?: string,
-    detailType: 'private' | 'group' = 'private'
-  ): Promise<MessageResponse> {
-    const message: MessageSegment[] = [
-      {
-        type: 'image',
-        data: {
-          url: mediaUrl,
-        },
-      },
-    ];
-    // 如果有文本说明，添加一个文本段
-    if (content) {
-      message.unshift({
-        type: 'text',
-        data: { text: content },
-      });
-    }
-    return this.sendMessageByAction(detailType, conversationId, message);
-  }
-
-  /**
-   * 发送 segments 格式消息（新版统一格式）
-   * @param conversationId 会话ID
-   * @param segments 消息链数组
-   * @param detailType 消息类型
-   */
-  async sendSegmentsMessage(
-    conversationId: string,
-    segments: MessageSegment[],
-    detailType: 'private' | 'group' = 'private'
-  ): Promise<MessageResponse> {
-    return this.sendMessageByAction(detailType, conversationId, segments);
-  }
-
-  /**
-   * 发送带回复的 segments 消息
-   * @param conversationId 会话ID
-   * @param segments 消息链数组
-   * @param replyToId 被回复消息的ID
-   * @param detailType 消息类型
-   */
-  async sendReplySegmentsMessage(
-    conversationId: string,
-    segments: MessageSegment[],
-    replyToId: string,
-    detailType: 'private' | 'group' = 'private'
-  ): Promise<MessageResponse> {
-    // 使用 reply_to_id 参数发送回复消息
-    return this.sendMessageByAction(detailType, conversationId, segments, replyToId);
-  }
-
   /**
    * 撤回/删除消息
    * 优先使用WebSocket，失败时降级到HTTP
@@ -568,6 +425,19 @@ class MessageService {
     });
   }
 
+  /**
+   * 批量标记所有会话已读
+   * POST /api/v1/conversations/read-all
+   */
+  async markAllAsRead(conversations: Array<{ id: string; lastSeq: number }>): Promise<void> {
+    await api.post('/conversations/read-all', {
+      conversations: conversations.map(c => ({
+        conversation_id: c.id,
+        last_read_seq: Number(c.lastSeq),
+      })),
+    });
+  }
+
   /**
    * 上报输入状态
    * 优先使用WebSocket，失败时降级到HTTP
@@ -598,65 +468,12 @@ class MessageService {
   }
 
   /**
-   * 获取单个会话未读数
-   * GET /api/v1/conversations/unread/count?conversation_id=xxx
+   * 获取同步元数据（轻量级 seq + 时间，用于增量同步判断）
+   * GET /api/v1/conversations/sync-data
    */
-  async getConversationUnreadCount(
-    conversationId: string
-  ): Promise<ConversationUnreadCountResponse> {
-    try {
-      const response = await api.get<ConversationUnreadCountResponse>(
-        '/conversations/unread/count',
-        { conversation_id: conversationId }
-      );
-      return response.data;
-    } catch (error) {
-      console.error('获取会话未读数失败:', error);
-      return {
-        conversation_id: conversationId,
-        unread_count: 0,
-      };
-    }
-  }
-
-  // ==================== 系统消息相关 ====================
-
-  /**
-   * 获取系统消息列表
-   * GET /api/v1/messages/system
-   * @param limit 返回数量限制
-   * @param beforeId 获取此ID之前的消息（用于分页）
-   */
-  async getSystemMessages(
-    pageSize: number = 20,
-    page: number = 1
-  ): Promise<SystemMessageListResponse> {
-    try {
-      const response = await api.get<{
-        list: any[];
-        total: number;
-        page: number;
-        page_size: number;
-        total_pages: number;
-      }>('/messages/system', {
-        page,
-        page_size: pageSize,
-      });
-      
-      const data = response.data;
-      return {
-        messages: data.list || [],
-        total: data.total || 0,
-        has_more: data.page < data.total_pages,
-      };
-    } catch (error) {
-      console.error('获取系统消息列表失败:', error);
-      return {
-        messages: [],
-        total: 0,
-        has_more: false,
-      };
-    }
+  async getSyncData(): Promise<Array<{ id: string; max_seq: number; last_message_at: string }>> {
+    const response = await api.get<{ conversations: Array<{ id: string; max_seq: number; last_message_at: string }> }>('/conversations/sync-data');
+    return response.data?.conversations || [];
   }
 
   /**
@@ -692,41 +509,6 @@ class MessageService {
     await api.put('/messages/system/read-all');
   }
 
-  // ==================== 游标分页方法 ====================
-
-  /**
-   * 获取消息列表（游标分页）
-   * GET /api/v1/conversations/:id/messages/cursor
-   * @param conversationId 会话ID
-   * @param params 游标分页请求参数
-   */
-  async getMessagesCursor(
-    conversationId: string,
-    params: CursorPaginationRequest = {}
-  ): Promise<CursorPaginationResponse<MessageResponse>> {
-    try {
-      const response = await api.get<any>(
-        `/conversations/${encodeURIComponent(conversationId)}/messages/cursor`,
-        params
-      );
-      const raw = response.data;
-      return {
-        list: Array.isArray(raw?.list) ? raw.list : [],
-        next_cursor: raw?.next_cursor ?? null,
-        prev_cursor: raw?.prev_cursor ?? null,
-        has_more: raw?.has_more ?? false,
-      };
-    } catch (error) {
-      console.error('获取消息列表失败:', error);
-      return {
-        list: [],
-        next_cursor: null,
-        prev_cursor: null,
-        has_more: false,
-      };
-    }
-  }
-
   /**
    * 获取系统消息列表（游标分页）
    * GET /api/v1/messages/system/cursor
diff --git a/src/services/notification/jpushService.ts b/src/services/notification/jpushService.ts
index a42b7d8..c3226d3 100644
--- a/src/services/notification/jpushService.ts
+++ b/src/services/notification/jpushService.ts
@@ -26,7 +26,7 @@ try {
     const Constants = require('expo-constants').default;
     const extra = Constants?.expoConfig?.extra || Constants?.extra || {};
     jpushAppKey = extra.jpushAppKey || '';
-    jpushChannel = extra.jpushChannel || 'withyou-default';
+    jpushChannel = extra.jpushChannel || 'developer-default';
   } else {
     console.warn('[JPush] native module not linked, skipping');
   }
diff --git a/src/stores/message/MessageManager.ts b/src/stores/message/MessageManager.ts
index 4d94009..c95666b 100644
--- a/src/stores/message/MessageManager.ts
+++ b/src/stores/message/MessageManager.ts
@@ -1,14 +1,8 @@
 /**
- * MessageManager - 消息管理核心模块（重构版）
- * 
+ * MessageManager - 消息管理核心模块
+ *
  * 作为轻量级协调者，整合各个专注的服务模块
  * 直接使用 zustand store 进行状态管理
- * 
- * 重构说明：
- * - 移除了 MessageStateManager 包装层
- * - 直接使用 zustand store
- * - 服务层移至 services/ 目录
- * - 移除了 SubscriptionManager，改用 Zustand selector 进行响应式订阅
  */
 
 import type { ConversationResponse, MessageResponse, MessageSegment, UserDTO } from '../../types/dto';
@@ -29,7 +23,6 @@ import { useMessageStore, normalizeConversationId, loadPersistedLastSystemMessag
 
 // 重新导出类型，保持兼容性
 export type {
-  MessageManagerState,
   ReadStateRecord,
   MessageManagerConversationListDeps,
 } from './types';
@@ -74,6 +67,7 @@ class MessageManager {
         fetchConversations: (force, source) => this.fetchConversations(force, source),
         fetchUnreadCount: () => this.fetchUnreadCount(),
         fetchMessages: (id) => this.fetchMessages(id),
+        syncBySeq: () => this.syncService.syncBySeq(),
       }
     );
 
@@ -350,6 +344,11 @@ class MessageManager {
     }
 
     const task = (async () => {
+      // 确保会话数据在 store 中（JPUSH 通知进入时 store 可能还没有此会话）
+      const store = useMessageStore.getState();
+      if (!store.getConversation(normalizedId)) {
+        await this.fetchConversationDetail(normalizedId);
+      }
       await this.fetchMessages(normalizedId);
     })();
     this.activatingConversationTasks.set(normalizedId, task);
@@ -380,7 +379,7 @@ class MessageManager {
   private shouldDeferConversationRefresh(source: string, forceRefresh: boolean): boolean {
     if (!this.getActiveConversation()) return false;
     if (!forceRefresh) return false;
-    return source === 'sse-reconnect' || source === 'prefetch' || source === 'hooks-initial-refresh';
+    return source === 'sse-reconnect' || source === 'prefetch';
   }
 }
 
diff --git a/src/stores/message/baseHooks.ts b/src/stores/message/baseHooks.ts
index 4638d03..972aa41 100644
--- a/src/stores/message/baseHooks.ts
+++ b/src/stores/message/baseHooks.ts
@@ -1,14 +1,9 @@
 /**
  * 消息模块 React Hooks
- * 
+ *
  * 提供React组件与消息状态管理的集成
  * 所有hooks都基于zustand store的selector机制
  * 确保组件能实时获取状态更新
- * 
- * 重构说明：
- * - 移除了 SubscriptionManager，改用 Zustand selector
- * - Zustand 会自动处理依赖追踪和组件重渲染
- * - 不需要手动管理订阅/取消订阅
  */
 
 import { useState, useEffect, useCallback, useRef } from 'react';
diff --git a/src/stores/message/index.ts b/src/stores/message/index.ts
index c202853..d5f0b52 100644
--- a/src/stores/message/index.ts
+++ b/src/stores/message/index.ts
@@ -1,12 +1,5 @@
 /**
  * 消息模块统一导出
- * 
- * 重构说明：
- * - 移除了 MessageStateManager 包装层
- * - 直接使用 zustand store 进行状态管理
- * - 服务层移至 services/ 目录
- * - 新增 hooks.ts 封装常用逻辑
- * - 移除了 SubscriptionManager，改用 Zustand selector 进行响应式订阅
  */
 
 // ==================== 主管理器 ====================
@@ -24,7 +17,6 @@ export type { MessageState, MessageActions, MessageStore } from './store';
 // ==================== 类型导出 ====================
 // 从 types.ts 导出所有类型
 export type {
-  MessageManagerState,
   ReadStateRecord,
   MessageManagerConversationListDeps,
   HandleNewMessageOptions,
diff --git a/src/stores/message/services/ConversationOperations.ts b/src/stores/message/services/ConversationOperations.ts
index 3b6c715..73549c8 100644
--- a/src/stores/message/services/ConversationOperations.ts
+++ b/src/stores/message/services/ConversationOperations.ts
@@ -1,10 +1,6 @@
 /**
  * 会话操作服务
  * 处理会话的 CRUD 操作
- * 
- * 重构说明：
- * - 直接使用 zustand store 替代 IMessageStateManager
- * - 移除了 SubscriptionManager 调用，Zustand 的 set() 会自动触发组件重渲染
  */
 
 import type { ConversationResponse } from '../../../types/dto';
@@ -102,32 +98,6 @@ export class ConversationOperations implements IConversationOperations {
     );
   }
 
-  /**
-   * 增加会话未读数
-   */
-  incrementUnreadCount(conversationId: string): void {
-    const store = useMessageStore.getState();
-    const conversation = store.getConversation(conversationId);
-    if (!conversation) return;
-
-    const prevUnreadCount = conversation.unread_count || 0;
-    const newUnreadCount = prevUnreadCount + 1;
-
-    // 创建新对象而不是直接修改，确保状态一致性
-    const updatedConv: ConversationResponse = {
-      ...conversation,
-      unread_count: newUnreadCount,
-    };
-    
-    store.updateConversation(updatedConv);
-
-    const currentUnread = store.getUnreadCount();
-    store.setUnreadCount(
-      currentUnread.total + 1,
-      currentUnread.system
-    );
-  }
-
   /**
    * 设置系统消息未读数
    */
diff --git a/src/stores/message/services/MessageSendService.ts b/src/stores/message/services/MessageSendService.ts
index 4bfe214..cffd26b 100644
--- a/src/stores/message/services/MessageSendService.ts
+++ b/src/stores/message/services/MessageSendService.ts
@@ -1,10 +1,6 @@
 /**
  * 消息发送服务
  * 处理消息发送相关逻辑
- * 
- * 重构说明：
- * - 直接使用 zustand store 替代 IMessageStateManager
- * - 移除了 SubscriptionManager 调用，Zustand 的 set() 会自动触发组件重渲染
  */
 
 import type { MessageResponse, MessageSegment, ConversationResponse } from '../../../types/dto';
diff --git a/src/stores/message/services/MessageSyncService.ts b/src/stores/message/services/MessageSyncService.ts
index 30be7b4..117b99e 100644
--- a/src/stores/message/services/MessageSyncService.ts
+++ b/src/stores/message/services/MessageSyncService.ts
@@ -1,10 +1,6 @@
 /**
  * 消息同步服务
  * 处理消息和会话的服务器同步逻辑
- * 
- * 重构说明：
- * - 直接使用 zustand store 替代 IMessageStateManager
- * - 移除了 SubscriptionManager 调用，Zustand 的 set() 会自动触发组件重渲染
  */
 
 import type { ConversationResponse, MessageResponse } from '../../../types/dto';
@@ -33,8 +29,8 @@ export class MessageSyncService implements IMessageSyncService {
 
   /** 正在加载会话列表下一页 */
   private loadingMoreConversations = false;
-  /** 聊天页活跃期间延迟的会话列表刷新 */
-  private deferredConversationRefresh = false;
+    /** fetchUnreadCount 去重：复用 in-flight promise */
+  private fetchUnreadCountPromise: Promise<void> | null = null;
 
   constructor(
     getCurrentUserId: () => string | null,
@@ -68,7 +64,6 @@ export class MessageSyncService implements IMessageSyncService {
     }
 
     if (this.shouldDeferConversationRefresh(source, forceRefresh)) {
-      this.deferredConversationRefresh = true;
       if (__DEV__) {
         console.log('[MessageSyncService] defer fetchConversations', {
           source,
@@ -108,15 +103,12 @@ export class MessageSyncService implements IMessageSyncService {
         newConversations.set(normalizedConv.id, normalizedConv);
       });
       
-      // 使用 store.setConversations 会自动排序并更新 conversationList
-      store.setConversations(newConversations);
-      
-      // 计算并更新未读数
+      // 合并更新：conversations + totalUnread 在同一次 set 中完成，消除中间状态窗口
       const totalUnread = Array.from(newConversations.values()).reduce(
         (sum, conv) => sum + (conv.unread_count || 0),
-        0
+        0,
       );
-      store.setUnreadCount(totalUnread, store.getUnreadCount().system);
+      store.setConversationsWithUnread(newConversations, totalUnread, store.getUnreadCount().system);
       
       this.persistConversationListCache();
     } catch (error) {
@@ -209,8 +201,6 @@ export class MessageSyncService implements IMessageSyncService {
         if (!hasInMemoryMessages) {
           try {
             const localMessages = await messageRepository.getByConversation(conversationId, 20);
-            const localMaxSeq = await messageRepository.getMaxSeq(conversationId);
-            baselineMaxSeq = localMaxSeq;
 
             if (localMessages.length > 0) {
               const formattedMessages: MessageResponse[] = localMessages.map(m => ({
@@ -225,7 +215,6 @@ export class MessageSyncService implements IMessageSyncService {
 
               store.setMessages(conversationId, formattedMessages);
             } else {
-              // 冷启动兜底：先设置空列表
               store.setMessages(conversationId, []);
             }
           } catch (error) {
@@ -233,32 +222,20 @@ export class MessageSyncService implements IMessageSyncService {
           }
         }
 
-        // 服务端快照 + 增量同步
-        try {
-          const snapshotResp = await messageService.getMessages(conversationId, undefined, undefined, 50);
-          const snapshotMessages = snapshotResp?.messages || [];
-          
-          if (snapshotMessages.length > 0) {
-            const existingMessages = store.getMessages(conversationId);
-            const mergedSnapshot = mergeMessagesById(existingMessages, snapshotMessages);
-            store.setMessages(conversationId, mergedSnapshot);
+        // 更新 baseline：合并本地DB后重新计算
+        const currentMessages = store.getMessages(conversationId);
+        baselineMaxSeq = currentMessages.reduce((max, m) => Math.max(max, m.seq || 0), 0);
 
-            messageRepository.saveMessagesBatch(
-              MessageMapper.toCachedMessages(snapshotMessages, conversationId)
-            ).catch(error => {
-              console.error('[MessageSyncService] 保存快照消息到本地失败:', error);
-            });
-          }
-
-          // 增量补齐
-          const snapshotMaxSeq = snapshotMessages.reduce((max, m) => Math.max(max, m.seq || 0), 0);
-          if (snapshotMaxSeq > baselineMaxSeq) {
+        // 策略：有本地数据时仅增量同步，无数据时拉快照
+        if (baselineMaxSeq > 0) {
+          // 增量同步：只拉 baselineMaxSeq 之后的消息
+          try {
             const incrementalResp = await messageService.getMessages(conversationId, baselineMaxSeq);
             const newMessages = incrementalResp?.messages || [];
-            
+
             if (newMessages.length > 0) {
-              const existingMessages = store.getMessages(conversationId);
-              const mergedMessages = mergeMessagesById(existingMessages, newMessages);
+              const existingMsgs = store.getMessages(conversationId);
+              const mergedMessages = mergeMessagesById(existingMsgs, newMessages);
               store.setMessages(conversationId, mergedMessages);
 
               messageRepository.saveMessagesBatch(
@@ -267,9 +244,27 @@ export class MessageSyncService implements IMessageSyncService {
                 console.error('[MessageSyncService] 保存增量消息到本地失败:', error);
               });
             }
+          } catch (error) {
+            console.error('[MessageSyncService] 增量同步失败:', error);
+          }
+        } else {
+          // 冷启动：本地无数据，拉快照
+          try {
+            const snapshotResp = await messageService.getMessages(conversationId, undefined, undefined, 50);
+            const snapshotMessages = snapshotResp?.messages || [];
+
+            if (snapshotMessages.length > 0) {
+              store.setMessages(conversationId, snapshotMessages);
+
+              messageRepository.saveMessagesBatch(
+                MessageMapper.toCachedMessages(snapshotMessages, conversationId)
+              ).catch(error => {
+                console.error('[MessageSyncService] 保存快照消息到本地失败:', error);
+              });
+            }
+          } catch (error) {
+            console.error('[MessageSyncService] 快照同步失败:', error);
           }
-        } catch (error) {
-          console.error('[MessageSyncService] 快照/增量同步失败:', error);
         }
       } else {
         // 指定了 afterSeq
@@ -360,11 +355,23 @@ export class MessageSyncService implements IMessageSyncService {
   }
 
   /**
-   * 获取未读数
+   * 获取未读数（去重：复用 in-flight promise）
    */
   async fetchUnreadCount(): Promise<void> {
+    if (this.fetchUnreadCountPromise) {
+      return this.fetchUnreadCountPromise;
+    }
+    this.fetchUnreadCountPromise = this.doFetchUnreadCount();
+    try {
+      await this.fetchUnreadCountPromise;
+    } finally {
+      this.fetchUnreadCountPromise = null;
+    }
+  }
+
+  private async doFetchUnreadCount(): Promise<void> {
     const store = useMessageStore.getState();
-    
+
     try {
       const [unreadData, systemUnreadData] = await Promise.all([
         messageService.getUnreadCount(),
@@ -388,28 +395,77 @@ export class MessageSyncService implements IMessageSyncService {
         }
       }
 
-      // 服务端汇总未读为 0 时，清掉内存中残留的红点
-      if (totalUnread === 0) {
-        const currentConversations = store.getState().conversations;
-        let anyCleared = false;
-        const newConversations = new Map(currentConversations);
-        for (const [cid, conv] of newConversations) {
-          if ((conv.unread_count || 0) > 0) {
-            newConversations.set(cid, { ...conv, unread_count: 0 });
-            anyCleared = true;
-          }
-        }
-        if (anyCleared) {
-          // 使用 zustand set 函数正确更新状态
-          store.setConversations(newConversations);
-          this.persistConversationListCache();
-        }
-      }
+      // 服务端汇总未读为 0：不主动清零本地未读，等 fetchConversations 提供权威数据
+      // 避免后端缓存竞态导致的未读数抖动
     } catch (error) {
       console.error('[MessageSyncService] 获取未读数失败:', error);
     }
   }
 
+  /**
+   * 基于 seq 的轻量增量同步（用于重连场景，替代全量刷新）
+   * 返回 true 表示同步成功，false 表示需要退化为全量刷新
+   */
+  async syncBySeq(): Promise<boolean> {
+    try {
+      const serverItems = await messageService.getSyncData();
+      if (!serverItems || serverItems.length === 0) return false;
+
+      const store = useMessageStore.getState();
+      const localConversations = store.conversations;
+
+      // 没有本地数据，无法增量同步
+      if (localConversations.size === 0) return false;
+
+      // 构建 serverMap
+      const serverMap = new Map<string, { max_seq: number; last_message_at: string }>();
+      for (const item of serverItems) {
+        serverMap.set(normalizeConversationId(item.id), item);
+      }
+
+      // 对比差异
+      const staleIds: string[] = [];
+      for (const [id, conv] of localConversations) {
+        const serverItem = serverMap.get(id);
+        if (!serverItem) continue;
+        const localMaxSeq = Number(conv.last_seq || 0);
+        const serverMaxSeq = Number(serverItem.max_seq || 0);
+        if (serverMaxSeq > localMaxSeq) {
+          staleIds.push(id);
+        }
+      }
+
+      // 差异过大（>50%），退化为全量刷新
+      if (staleIds.length > localConversations.size * 0.5) {
+        return false;
+      }
+
+      // 对有差异的会话更新数据
+      if (staleIds.length > 0) {
+        const detailPromises = staleIds.map(id =>
+          this.fetchConversationDetail(id).catch(() => {})
+        );
+        await Promise.all(detailPromises);
+
+        // 重新读取 store，避免 stale 引用
+        const activeId = useMessageStore.getState().getActiveConversation();
+        if (activeId && staleIds.includes(activeId)) {
+          const localMaxSeq = useMessageStore.getState().getMessages(activeId).reduce(
+            (max, m) => Math.max(max, m.seq || 0), 0
+          );
+          if (localMaxSeq > 0) {
+            await this.fetchMessages(activeId, localMaxSeq);
+          }
+        }
+      }
+
+      return true;
+    } catch (error) {
+      console.error('[MessageSyncService] syncBySeq 失败:', error);
+      return false;
+    }
+  }
+
   /**
    * 检查是否可加载更多会话
    */
@@ -487,15 +543,12 @@ export class MessageSyncService implements IMessageSyncService {
       newConversations.set(normalizedConv.id, normalizedConv);
     });
     
-    // 使用 store.setConversations 会自动排序并更新 conversationList
-    store.setConversations(newConversations);
-    
-    // 计算并更新未读数
+    // 合并更新：conversations + totalUnread 在同一次 set 中完成
     const totalUnread = Array.from(newConversations.values()).reduce(
       (sum, conv) => sum + (conv.unread_count || 0),
-      0
+      0,
     );
-    store.setUnreadCount(totalUnread, store.getUnreadCount().system);
+    store.setConversationsWithUnread(newConversations, totalUnread, store.getUnreadCount().system);
     
     return true;
   }
diff --git a/src/stores/message/services/ReadReceiptManager.ts b/src/stores/message/services/ReadReceiptManager.ts
index 52b66fb..5e18605 100644
--- a/src/stores/message/services/ReadReceiptManager.ts
+++ b/src/stores/message/services/ReadReceiptManager.ts
@@ -1,10 +1,6 @@
 /**
  * 已读回执管理器
  * 管理消息已读状态的同步和保护
- * 
- * 重构说明：
- * - 直接使用 zustand store 替代 IMessageStateManager
- * - 移除了 SubscriptionManager 调用，Zustand 的 set() 会自动触发组件重渲染
  */
 
 import type { ConversationResponse } from '../../../types/dto';
@@ -64,18 +60,16 @@ export class ReadReceiptManager implements IReadReceiptManager {
       lastReadSeq: seq,
     });
 
-    // 2. 乐观更新本地状态
+    // 2. 乐观更新本地状态（原子更新，避免中间渲染状态）
     const updatedConv: ConversationResponse = {
       ...conversation,
       unread_count: 0,
       my_last_read_seq: Math.max(Number(conversation.my_last_read_seq || 0), seq),
     };
-    
-    store.updateConversation(updatedConv);
-    
+
     const currentUnread = store.getUnreadCount();
     const newTotalUnread = Math.max(0, currentUnread.total - prevUnreadCount);
-    store.setUnreadCount(newTotalUnread, currentUnread.system);
+    store.updateConversationWithUnread(updatedConv, newTotalUnread, currentUnread.system);
 
     // 3. 更新本地数据库
     messageRepository.markConversationAsRead(normalizedId).catch(console.error);
@@ -117,34 +111,52 @@ export class ReadReceiptManager implements IReadReceiptManager {
    */
   async markAllAsRead(): Promise<void> {
     const store = useMessageStore.getState();
-    const conversations = store.conversations;
+    const conversationsMap = store.conversations;
     const prevTotalUnread = store.getUnreadCount().total;
     const currentSystem = store.getUnreadCount().system;
 
-    // 乐观更新
-    conversations.forEach(conv => {
-      conv.unread_count = 0;
+    // 先收集所有有未读数的会话（不变原 Map）
+    const unreadConversations: Array<{ id: string; lastSeq: number }> = [];
+    conversationsMap.forEach(conv => {
+      if ((conv.unread_count || 0) > 0) {
+        unreadConversations.push({
+          id: conv.id,
+          lastSeq: Number(conv.last_seq || 0),
+        });
+      }
     });
-    
-    store.setUnreadCount(0, currentSystem);
+
+    if (unreadConversations.length === 0 && prevTotalUnread === 0) return;
+
+    // 乐观更新：创建新 Map，将所有有未读的会话置零（不变原对象）
+    const newConversations = new Map(conversationsMap);
+    conversationsMap.forEach((conv, id) => {
+      if ((conv.unread_count || 0) > 0) {
+        newConversations.set(id, { ...conv, unread_count: 0 });
+      }
+    });
+    store.setConversationsWithUnread(newConversations, 0, currentSystem);
 
     try {
       // 标记系统消息已读
       await messageService.markAllSystemMessagesRead();
 
-      // 标记所有会话已读
-      const promises: Promise<any>[] = [];
-      conversations.forEach(conv => {
-        if ((conv.unread_count || 0) > 0) {
-          promises.push(messageService.markAsRead(conv.id, conv.last_seq));
+      // 批量标记会话已读
+      if (unreadConversations.length > 0) {
+        try {
+          await messageService.markAllAsRead(unreadConversations);
+        } catch {
+          // 降级：逐个调用
+          const promises = unreadConversations.map(conv =>
+            messageService.markAsRead(conv.id, conv.lastSeq)
+          );
+          await Promise.all(promises);
         }
-      });
-
-      await Promise.all(promises);
+      }
     } catch (error) {
       console.error('[ReadReceiptManager] 标记所有已读失败:', error);
-      // 回滚
-      store.setUnreadCount(prevTotalUnread, currentSystem);
+      // 回滚：恢复原始会话和未读数
+      store.setConversationsWithUnread(new Map(conversationsMap), prevTotalUnread, currentSystem);
     }
   }
 
diff --git a/src/stores/message/services/WSMessageHandler.ts b/src/stores/message/services/WSMessageHandler.ts
index 194c9d9..77d1a19 100644
--- a/src/stores/message/services/WSMessageHandler.ts
+++ b/src/stores/message/services/WSMessageHandler.ts
@@ -1,10 +1,6 @@
 /**
  * WebSocket 消息处理器
  * 处理所有来自 WebSocket 的消息事件
- * 
- * 重构说明：
- * - 直接使用 zustand store 替代 IMessageStateManager
- * - 移除了 SubscriptionManager 调用，Zustand 的 set() 会自动触发组件重渲染
  */
 
 import type {
@@ -39,11 +35,15 @@ export class WSMessageHandler implements IWSMessageHandler {
   private fetchConversationsCallback: (forceRefresh: boolean, source: string) => Promise<void>;
   private fetchUnreadCountCallback: () => Promise<void>;
   private fetchMessagesCallback: (conversationId: string) => Promise<void>;
+  private syncBySeqCallback: () => Promise<boolean>;
 
   private sseUnsubscribe: (() => void) | null = null;
   private isBootstrapping: boolean = false;
   private lastReconnectSyncAt: number = 0;
 
+  // 系统通知去重（防止重连时重复递增系统未读）
+  private processedNotificationIds: Set<string> = new Set();
+
   // 初始化阶段缓冲来自 SSE 的消息事件
   private bufferedChatMessages: Array<(WSChatMessage | WSGroupChatMessage) & { _isAck?: boolean }> = [];
   private bufferedReadReceipts: Array<WSReadMessage | WSGroupReadMessage> = [];
@@ -57,6 +57,7 @@ export class WSMessageHandler implements IWSMessageHandler {
       fetchConversations: (forceRefresh: boolean, source: string) => Promise<void>;
       fetchUnreadCount: () => Promise<void>;
       fetchMessages: (conversationId: string) => Promise<void>;
+      syncBySeq: () => Promise<boolean>;
     }
   ) {
     this.deduplication = deduplication;
@@ -66,6 +67,7 @@ export class WSMessageHandler implements IWSMessageHandler {
     this.fetchConversationsCallback = callbacks.fetchConversations;
     this.fetchUnreadCountCallback = callbacks.fetchUnreadCount;
     this.fetchMessagesCallback = callbacks.fetchMessages;
+    this.syncBySeqCallback = callbacks.syncBySeq;
   }
 
   /**
@@ -134,6 +136,21 @@ export class WSMessageHandler implements IWSMessageHandler {
       if (message.is_read) {
         return;
       }
+
+      // 按通知 ID 去重，防止重连时重复递增
+      const notificationId = (message as any).id || (message as any).message_id;
+      if (notificationId) {
+        if (this.processedNotificationIds.has(String(notificationId))) {
+          return;
+        }
+        this.processedNotificationIds.add(String(notificationId));
+        // 防止内存泄漏：超过 500 条时淘汰最旧的 100 条
+        if (this.processedNotificationIds.size > 500) {
+          const firstIds = Array.from(this.processedNotificationIds).slice(0, 100);
+          firstIds.forEach(id => this.processedNotificationIds.delete(id));
+        }
+      }
+
       this.incrementSystemUnread();
       if (message.created_at) {
         const store = useMessageStore.getState();
@@ -154,43 +171,62 @@ export class WSMessageHandler implements IWSMessageHandler {
       const now = Date.now();
       if (now - this.lastReconnectSyncAt > 1500) {
         this.lastReconnectSyncAt = now;
-        const activeConversation = useMessageStore.getState().getActiveConversation();
 
-        if (!activeConversation) {
-          this.fetchConversationsCallback(true, 'sse-reconnect').catch(error => {
-            console.error('[WSMessageHandler] 连接后同步会话失败:', error);
-          });
-        } else {
+        // 优先尝试 seq 驱动的轻量同步（内部会为 stale 的活动会话拉取消息）
+        this.syncBySeqCallback().then(ok => {
+          if (!ok) {
+            // 增量同步失败或差异过大，退化为全量刷新
+            this.fetchConversationsCallback(true, 'sse-reconnect').catch(error => {
+              console.error('[WSMessageHandler] 连接后同步会话失败:', error);
+            });
+            // 退化场景下仍需同步活动会话消息
+            const activeConv = useMessageStore.getState().getActiveConversation();
+            if (activeConv) {
+              this.fetchMessagesCallback(activeConv).catch(() => {});
+            }
+          }
           this.fetchUnreadCountCallback().catch(error => {
             console.error('[WSMessageHandler] 连接后同步未读数失败:', error);
           });
-        }
-
-        if (activeConversation) {
-          this.fetchMessagesCallback(activeConversation).catch(error => {
-            console.error('[WSMessageHandler] 连接后同步当前会话消息失败:', error);
-          });
-        }
+        }).catch(() => {
+          // syncBySeq 异常，退化为全量
+          this.fetchConversationsCallback(true, 'sse-reconnect').catch(() => {});
+          const activeConv = useMessageStore.getState().getActiveConversation();
+          if (activeConv) {
+            this.fetchMessagesCallback(activeConv).catch(() => {});
+          }
+          this.fetchUnreadCountCallback().catch(() => {});
+        });
       }
     });
 
     // 监听 sync_required 事件，触发增量同步
     wsService.on('sync_required', () => {
       console.log('[WSMessageHandler] 收到 sync_required，开始增量同步');
-      const activeConversation = useMessageStore.getState().getActiveConversation();
 
-      this.fetchConversationsCallback(true, 'sync_required').catch(error => {
-        console.error('[WSMessageHandler] sync_required 同步会话失败:', error);
-      });
-      this.fetchUnreadCountCallback().catch(error => {
-        console.error('[WSMessageHandler] sync_required 同步未读数失败:', error);
-      });
-
-      if (activeConversation) {
-        this.fetchMessagesCallback(activeConversation).catch(error => {
-          console.error('[WSMessageHandler] sync_required 同步消息失败:', error);
+      // 先尝试 seq 驱动的轻量同步（内部会为 stale 的活动会话拉取消息）
+      this.syncBySeqCallback().then(ok => {
+        if (!ok) {
+          this.fetchConversationsCallback(true, 'sync_required').catch(error => {
+            console.error('[WSMessageHandler] sync_required 同步会话失败:', error);
+          });
+          // 退化场景下仍需同步活动会话消息
+          const activeConv = useMessageStore.getState().getActiveConversation();
+          if (activeConv) {
+            this.fetchMessagesCallback(activeConv).catch(() => {});
+          }
+        }
+        this.fetchUnreadCountCallback().catch(error => {
+          console.error('[WSMessageHandler] sync_required 同步未读数失败:', error);
         });
-      }
+      }).catch(() => {
+        this.fetchConversationsCallback(true, 'sync_required').catch(() => {});
+        const activeConv = useMessageStore.getState().getActiveConversation();
+        if (activeConv) {
+          this.fetchMessagesCallback(activeConv).catch(() => {});
+        }
+        this.fetchUnreadCountCallback().catch(() => {});
+      });
     });
 
     wsService.onDisconnect(() => {
@@ -206,6 +242,7 @@ export class WSMessageHandler implements IWSMessageHandler {
       this.sseUnsubscribe();
       this.sseUnsubscribe = null;
     }
+    this.processedNotificationIds.clear();
   }
 
   /**
@@ -510,19 +547,7 @@ export class WSMessageHandler implements IWSMessageHandler {
   }
 
   private incrementUnreadCount(conversationId: string): void {
-    const store = useMessageStore.getState();
-    const conversation = store.getConversation(conversationId);
-    if (conversation) {
-      const prevUnreadCount = conversation.unread_count || 0;
-      const updatedConv: ConversationResponse = {
-        ...conversation,
-        unread_count: prevUnreadCount + 1,
-      };
-      store.updateConversation(updatedConv);
-
-      const currentUnread = store.getUnreadCount();
-      store.setUnreadCount(currentUnread.total + 1, currentUnread.system);
-    }
+    useMessageStore.getState().incrementUnreadAtomic(conversationId);
   }
 
   private incrementSystemUnread(): void {
diff --git a/src/stores/message/services/index.ts b/src/stores/message/services/index.ts
index a0e86b2..47ec3f9 100644
--- a/src/stores/message/services/index.ts
+++ b/src/stores/message/services/index.ts
@@ -1,7 +1,5 @@
 /**
  * 消息服务层统一导出
- * 
- * 重构说明：所有服务直接使用 zustand store，移除了 IMessageStateManager 接口依赖
  */
 
 // 消息去重服务
diff --git a/src/stores/message/store.ts b/src/stores/message/store.ts
index 75b1179..1530c4a 100644
--- a/src/stores/message/store.ts
+++ b/src/stores/message/store.ts
@@ -1,11 +1,6 @@
 /**
  * 消息状态 Zustand Store
  * 使用 zustand 进行状态管理，提供响应式状态更新
- *
- * 重构说明：
- * - 移除了 MessageStateManager 包装层
- * - 直接使用 zustand store 进行状态管理
- * - 移除了 SubscriptionManager，改用 Zustand selector 进行响应式订阅
  */
 
 import { create } from 'zustand';
@@ -78,12 +73,14 @@ export interface MessageActions {
   isNotificationMuted: (conversationId: string) => boolean;
 
   // 设置状态
-  setConversations: (conversations: Map<string, ConversationResponse>) => void;
+  setConversationsWithUnread: (
+    conversations: Map<string, ConversationResponse>,
+    totalUnread: number,
+    systemUnread: number,
+  ) => void;
   updateConversation: (conversation: ConversationResponse) => void;
   removeConversation: (conversationId: string) => void;
   setMessages: (conversationId: string, messages: MessageResponse[]) => void;
-  addMessage: (conversationId: string, message: MessageResponse) => void;
-  updateMessage: (conversationId: string, messageId: string, updates: Partial<MessageResponse>) => void;
   setUnreadCount: (total: number, system: number) => void;
   setLastSystemMessageAt: (time: string | null) => void;
   setSSEConnected: (connected: boolean) => void;
@@ -95,6 +92,14 @@ export interface MessageActions {
   setNotificationMuted: (conversationId: string, notificationMuted: boolean) => void;
   setInitialized: (initialized: boolean) => void;
 
+  // 原子性更新（避免中间渲染状态）
+  updateConversationWithUnread: (
+    conversation: ConversationResponse,
+    totalUnread: number,
+    systemUnread: number,
+  ) => void;
+  incrementUnreadAtomic: (conversationId: string) => void;
+
   // 重置
   reset: () => void;
 }
@@ -240,7 +245,11 @@ export const useMessageStore = create<MessageStore>((set, get) => ({
 
   // ==================== 设置状态 ====================
 
-  setConversations: (conversations: Map<string, ConversationResponse>) => {
+  setConversationsWithUnread: (
+    conversations: Map<string, ConversationResponse>,
+    totalUnread: number,
+    systemUnread: number,
+  ) => {
     const conversationList = sortConversationList(conversations);
     const notificationMutedMap = new Map<string, boolean>();
     conversations.forEach((conv, id) => {
@@ -252,6 +261,8 @@ export const useMessageStore = create<MessageStore>((set, get) => ({
       conversations,
       conversationList,
       notificationMutedMap: new Map([...state.notificationMutedMap, ...notificationMutedMap]),
+      totalUnreadCount: totalUnread,
+      systemUnreadCount: systemUnread,
     }));
   },
 
@@ -314,39 +325,6 @@ export const useMessageStore = create<MessageStore>((set, get) => ({
     });
   },
 
-  addMessage: (conversationId: string, message: MessageResponse) => {
-    const normalizedId = normalizeConversationId(conversationId);
-    set(state => {
-      const existing = state.messagesMap.get(normalizedId) || [];
-      const exists = existing.some(m => String(m.id) === String(message.id));
-
-      if (exists) {
-        return state;
-      }
-
-      const updated = mergeMessagesById(existing, [message]);
-      const newMessagesMap = new Map(state.messagesMap);
-      newMessagesMap.set(normalizedId, updated);
-      return { messagesMap: newMessagesMap };
-    });
-  },
-
-  updateMessage: (conversationId: string, messageId: string, updates: Partial<MessageResponse>) => {
-    const normalizedId = normalizeConversationId(conversationId);
-    set(state => {
-      const messages = state.messagesMap.get(normalizedId);
-      if (!messages) return state;
-
-      const updated = messages.map(m =>
-        String(m.id) === String(messageId) ? { ...m, ...updates } : m
-      );
-
-      const newMessagesMap = new Map(state.messagesMap);
-      newMessagesMap.set(normalizedId, updated);
-      return { messagesMap: newMessagesMap };
-    });
-  },
-
   setUnreadCount: (total: number, system: number) => {
     set({ totalUnreadCount: total, systemUnreadCount: system });
   },
@@ -413,6 +391,53 @@ export const useMessageStore = create<MessageStore>((set, get) => ({
     set({ isInitialized: initialized });
   },
 
+  updateConversationWithUnread: (
+    conversation: ConversationResponse,
+    totalUnread: number,
+    systemUnread: number,
+  ) => {
+    const id = normalizeConversationId(conversation.id);
+    set(state => {
+      const newConversations = new Map(state.conversations);
+      newConversations.set(id, { ...conversation, id });
+      const conversationList = sortConversationList(newConversations);
+      const newNotificationMutedMap = new Map(state.notificationMutedMap);
+      if (conversation.notification_muted) {
+        newNotificationMutedMap.set(id, true);
+      } else {
+        newNotificationMutedMap.delete(id);
+      }
+      return {
+        conversations: newConversations,
+        conversationList,
+        notificationMutedMap: newNotificationMutedMap,
+        totalUnreadCount: totalUnread,
+        systemUnreadCount: systemUnread,
+      };
+    });
+  },
+
+  incrementUnreadAtomic: (conversationId: string) => {
+    const normalizedId = normalizeConversationId(conversationId);
+    set(state => {
+      const conversation = state.conversations.get(normalizedId);
+      if (!conversation) return state;
+
+      const newConversations = new Map(state.conversations);
+      newConversations.set(normalizedId, {
+        ...conversation,
+        unread_count: (conversation.unread_count || 0) + 1,
+      });
+      const conversationList = sortConversationList(newConversations);
+
+      return {
+        conversations: newConversations,
+        conversationList,
+        totalUnreadCount: state.totalUnreadCount + 1,
+      };
+    });
+  },
+
   // ==================== 重置 ====================
 
   reset: () => {
diff --git a/src/stores/message/types.ts b/src/stores/message/types.ts
index 62c0c53..992946a 100644
--- a/src/stores/message/types.ts
+++ b/src/stores/message/types.ts
@@ -1,21 +1,6 @@
 import type { ConversationResponse, MessageResponse, UserDTO } from '../../types/dto';
 import type { IConversationListPagedSource } from './sources';
 
-export interface MessageManagerState {
-  conversations: Map<string, ConversationResponse>;
-  conversationList: ConversationResponse[];
-  messagesMap: Map<string, MessageResponse[]>;
-  totalUnreadCount: number;
-  systemUnreadCount: number;
-  isWSConnected: boolean;
-  currentConversationId: string | null;
-  isLoadingConversations: boolean;
-  loadingMessagesSet: Set<string>;
-  isInitialized: boolean;
-  typingUsersMap: Map<string, string[]>;
-  mutedStatusMap: Map<string, boolean>;
-}
-
 export interface ReadStateRecord {
   timestamp: number;
   version: number;
@@ -68,7 +53,6 @@ export interface IConversationOperations {
   removeConversation(conversationId: string): void;
   clearConversations(): void;
   updateUnreadCount(conversationId: string, count: number): void;
-  incrementUnreadCount(conversationId: string): void;
   setSystemUnreadCount(count: number): void;
   incrementSystemUnreadCount(): void;
   decrementSystemUnreadCount(count?: number): void;
@@ -89,7 +73,9 @@ export interface IMessageSyncService {
   fetchMessages(conversationId: string, afterSeq?: number): Promise<void>;
   loadMoreMessages(conversationId: string, beforeSeq: number, limit?: number): Promise<MessageResponse[]>;
   fetchUnreadCount(): Promise<void>;
+  syncBySeq(): Promise<boolean>;
   canLoadMoreConversations(): boolean;
+  restartSources(): void;
 }
 
 export interface IWSMessageHandler {