diff --git a/src/views/im/home/components/group/GroupRequestListDialog.vue b/src/views/im/home/components/group/GroupRequestListDialog.vue
index 2184ca51c..a9e0093bf 100644
--- a/src/views/im/home/components/group/GroupRequestListDialog.vue
+++ b/src/views/im/home/components/group/GroupRequestListDialog.vue
@@ -12,10 +12,7 @@
     :close-on-click-modal="false"
     class="im-group-request-list__dialog"
   >
-    <div
-      v-loading="loading"
-      class="flex flex-col gap-3 max-h-[60vh] overflow-y-auto pr-1"
-    >
+    <div v-loading="loading" class="flex flex-col gap-3 max-h-[60vh] overflow-y-auto pr-1">
       <!-- 空态 -->
       <el-empty v-if="!loading && list.length === 0" description="暂无进群申请" />
 
@@ -32,10 +29,14 @@
             :clickable="false"
           />
           <div class="flex-1 min-w-0">
-            <div class="truncate text-sm font-medium leading-[1.4] text-[var(--el-text-color-primary)]">
+            <div
+              class="truncate text-sm font-medium leading-[1.4] text-[var(--el-text-color-primary)]"
+            >
               {{ latest.userNickname || `用户 ${latest.userId}` }}
             </div>
-            <div class="truncate mt-[2px] text-12px leading-[1.5] text-[var(--el-text-color-secondary)]">
+            <div
+              class="truncate mt-[2px] text-12px leading-[1.5] text-[var(--el-text-color-secondary)]"
+            >
               <template v-if="latest.inviterUserId">
                 通过
                 <span class="text-[var(--el-color-primary)]">
@@ -113,10 +114,14 @@
             :clickable="false"
           />
           <div class="flex-1 min-w-0">
-            <div class="truncate text-sm font-medium leading-[1.4] text-[var(--el-text-color-primary)]">
+            <div
+              class="truncate text-sm font-medium leading-[1.4] text-[var(--el-text-color-primary)]"
+            >
               {{ item.userNickname || `用户 ${item.userId}` }}
             </div>
-            <div class="truncate mt-[2px] text-12px leading-[1.5] text-[var(--el-text-color-secondary)]">
+            <div
+              class="truncate mt-[2px] text-12px leading-[1.5] text-[var(--el-text-color-secondary)]"
+            >
               <template v-if="item.inviterUserId">
                 通过
                 <span class="text-[var(--el-color-primary)]">
@@ -225,7 +230,10 @@ watch(
     groupId.value && visible.value
       ? groupRequestStore.unhandledList
           .filter((request) => request.groupId === groupId.value)
-          .map((request) => `${request.id}:${request.inviterUserId ?? ''}:${request.applyContent ?? ''}`)
+          .map(
+            (request) =>
+              `${request.id}:${request.inviterUserId ?? ''}:${request.applyContent ?? ''}`
+          )
           .join(',')
       : null,
   (current, previous) => {
@@ -241,12 +249,22 @@ watch(
   }
 )
 
-async function fetchList(groupId: number) {
+let fetchSeq = 0 // 单调递增请求序号；同群也会因为 WS 1503 推送触发额外 fetch，乱序返回时旧响应不能覆盖新数据
+async function fetchList(targetGroupId: number) {
+  const seq = ++fetchSeq
   loading.value = true
   try {
-    groupList.value = (await getGroupRequestListByGroupId(groupId)) || []
+    const data = (await getGroupRequestListByGroupId(targetGroupId)) || []
+    // 期间切群 / 关弹窗 / 又触发更新 fetch：丢响应
+    if (seq !== fetchSeq || !visible.value || groupId.value !== targetGroupId) {
+      return
+    }
+    groupList.value = data
   } finally {
-    loading.value = false
+    // 旧请求 finally 命中时新请求仍在跑，跳过避免提前关 loading
+    if (seq === fetchSeq) {
+      loading.value = false
+    }
   }
 }
 
diff --git a/src/views/im/home/pages/contact/FriendRequestDetail.vue b/src/views/im/home/pages/contact/FriendRequestDetail.vue
index c470113aa..564879426 100644
--- a/src/views/im/home/pages/contact/FriendRequestDetail.vue
+++ b/src/views/im/home/pages/contact/FriendRequestDetail.vue
@@ -140,22 +140,38 @@ const peerUser = computed<User>(() => ({
   avatar: peerAvatar.value
 }))
 
+// 各自的 loading 用于按钮 spinner 显示；processing 是跨按钮互斥锁，避免同意 / 拒绝并发提交同一申请
 const agreeing = ref(false)
 const refusing = ref(false)
+const processing = ref(false)
 
-/** 同意申请 */
+/** 同意申请：互斥锁 + 状态二次校验，避免并发 / 服务端已处理后再次提交 */
 async function handleAgree() {
+  if (processing.value) {
+    return
+  }
+  if (props.request.handleResult !== ImFriendRequestHandleResult.UNHANDLED) {
+    return
+  }
+  processing.value = true
   agreeing.value = true
   try {
     await friendStore.agreeFriendRequest(props.request.id)
     message.success('已同意好友申请')
   } finally {
     agreeing.value = false
+    processing.value = false
   }
 }
 
 /** 拒绝申请：弹 prompt 收集可选拒绝理由（点取消则中止），随后调 store 落库 + 提示 */
 async function handleRefuse() {
+  if (processing.value) {
+    return
+  }
+  if (props.request.handleResult !== ImFriendRequestHandleResult.UNHANDLED) {
+    return
+  }
   // 1. 弹 prompt 收集拒绝理由（最多 255 字）；用户点「取消」会 reject，中止后续流程
   let handleContent: string | undefined
   try {
@@ -171,13 +187,21 @@ async function handleRefuse() {
   } catch {
     return
   }
-  // 2. 调 store 拒绝申请；按钮 loading 期间不允许重复点击
+  // 2. prompt 期间状态可能被跨端改成 AGREED / REFUSED，再校验一次避免重复提交
+  if (processing.value) {
+    return
+  }
+  if (props.request.handleResult !== ImFriendRequestHandleResult.UNHANDLED) {
+    return
+  }
+  processing.value = true
   refusing.value = true
   try {
     await friendStore.refuseFriendRequest(props.request.id, handleContent)
     message.success('已拒绝好友申请')
   } finally {
     refusing.value = false
+    processing.value = false
   }
 }
 </script>
diff --git a/src/views/im/home/pages/contact/index.vue b/src/views/im/home/pages/contact/index.vue
index 5c9b6c1fc..4261129e8 100644
--- a/src/views/im/home/pages/contact/index.vue
+++ b/src/views/im/home/pages/contact/index.vue
@@ -86,7 +86,7 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted, ref } from 'vue'
+import { computed, onMounted, ref, watch } from 'vue'
 import Icon from '@/components/Icon/src/Icon.vue'
 import { useMessage } from '@/hooks/web/useMessage'
 import { useRouter } from 'vue-router'
@@ -149,6 +149,57 @@ const groups = computed<GroupLite[]>(() =>
   }))
 )
 
+/**
+ * store 列表变化时同步 selection 持的对象副本：对端推送 / 跨端动作改 store 后，右侧详情能跟上：
+ * - 命中则替换为最新引用，资料 / 备注 / 申请状态变更立刻反映
+ * - 找不到（删除 / 拒绝 / 已通过等让记录消失）则置 null 收起详情
+ */
+watch(
+  friends,
+  (list) => {
+    if (selection.value?.type !== 'friend') {
+      return
+    }
+    const fresh = list.find((friend) => friend.id === selection.value!.friend.id)
+    if (!fresh) {
+      selection.value = null
+    } else if (fresh !== selection.value.friend) {
+      selection.value = { type: 'friend', friend: fresh }
+    }
+  },
+  { deep: true }
+)
+watch(
+  groups,
+  (list) => {
+    if (selection.value?.type !== 'group') {
+      return
+    }
+    const fresh = list.find((group) => group.id === selection.value!.group.id)
+    if (!fresh) {
+      selection.value = null
+    } else if (fresh !== selection.value.group) {
+      selection.value = { type: 'group', group: fresh }
+    }
+  },
+  { deep: true }
+)
+watch(
+  friendRequests,
+  (list) => {
+    if (selection.value?.type !== 'request') {
+      return
+    }
+    const fresh = list.find((request) => request.id === selection.value!.request.id)
+    if (!fresh) {
+      selection.value = null
+    } else if (fresh !== selection.value.request) {
+      selection.value = { type: 'request', request: fresh }
+    }
+  },
+  { deep: true }
+)
+
 const friendUser = computed<User | null>(() => {
   if (selection.value?.type !== 'friend') {
     return null
diff --git a/src/views/im/home/store/conversationStore.ts b/src/views/im/home/store/conversationStore.ts
index af8049479..03932c8f8 100644
--- a/src/views/im/home/store/conversationStore.ts
+++ b/src/views/im/home/store/conversationStore.ts
@@ -855,6 +855,26 @@ export const useConversationStore = defineStore('imConversationStore', {
       this.saveConversations(conversation)
     },
 
+    /**
+     * 跨端 READ 推送收到时把指定会话清成"全已读"：unread + atMe + atAll 一起清；避免群里跨端读完但本端 @ 红字残留
+     *
+     * 与 markActiveAsRead 的区别：本方法不更新 messages 单条 status（跨端推送只携带 conversation 级游标），
+     * 仅刷会话级未读 / @ 状态；如果未读和 @ 都已经是 false，直接 noop 避免无效 saveConversations
+     */
+    markConversationAsRead(type: number, targetId: number) {
+      const conversation = this.getConversation(type, targetId)
+      if (!conversation) {
+        return
+      }
+      if (conversation.unreadCount === 0 && !conversation.atMe && !conversation.atAll) {
+        return
+      }
+      conversation.unreadCount = 0
+      conversation.atMe = false
+      conversation.atAll = false
+      this.saveConversations(conversation)
+    },
+
     /**
      * 当前会话全部标记为已读（切换会话 / 手动触发）
      * 只处理「对方发来的、尚未读」的消息
diff --git a/src/views/im/home/store/groupStore.ts b/src/views/im/home/store/groupStore.ts
index 8ba4bb1f0..a72ca08bf 100644
--- a/src/views/im/home/store/groupStore.ts
+++ b/src/views/im/home/store/groupStore.ts
@@ -399,7 +399,7 @@ export const useGroupStore = defineStore('imGroupStore', {
       }
     },
 
-    /** 切换免打扰：推后端 + 落本地 */
+    /** 切换免打扰：推后端 + 落本地 + 同步会话列表的 silent，避免 silent 图标 / 总未读 / 提示音判断与设置漂移；和 friendStore.setSilent 对齐 */
     async setSilent(id: number, silent: boolean) {
       await apiUpdateGroupMember({ groupId: id, silent })
       const group = this.getGroup(id)
@@ -407,6 +407,8 @@ export const useGroupStore = defineStore('imGroupStore', {
         return
       }
       group.silent = silent
+      const conversationStore = useConversationStore()
+      conversationStore.updateConversation(ImConversationType.GROUP, id, { silent })
       this.saveGroups()
     },
 
diff --git a/src/views/im/home/store/websocketStore.ts b/src/views/im/home/store/websocketStore.ts
index c03c3ca42..0c9595ca0 100644
--- a/src/views/im/home/store/websocketStore.ts
+++ b/src/views/im/home/store/websocketStore.ts
@@ -503,14 +503,7 @@ export const useImWebSocketStore = defineStore('imWebSocketStore', {
         return
       }
       const conversationStore = useConversationStore()
-      const conversation = conversationStore.getConversation(
-        ImConversationType.PRIVATE,
-        websocketMessage.receiverId
-      )
-      if (conversation) {
-        conversation.unreadCount = 0
-      }
-      conversationStore.saveConversations()
+      conversationStore.markConversationAsRead(ImConversationType.PRIVATE, websocketMessage.receiverId)
     },
 
     /**
@@ -614,20 +607,13 @@ export const useImWebSocketStore = defineStore('imWebSocketStore', {
 
     // ==================== 群聊已读 / 回执 ====================
 
-    /** 群聊 READ：自己其它终端在某群里标为已读，本端同步清零该群未读；群已读关闭时兜底忽略 */
+    /** 群聊 READ：自己其它终端在某群里标为已读，本端同步清零该群未读 + @ 红字；群已读关闭时兜底忽略 */
     handleGroupRead(websocketMessage: ImGroupMessageDTO) {
       if (!MESSAGE_GROUP_READ_ENABLED) {
         return
       }
       const conversationStore = useConversationStore()
-      const conversation = conversationStore.getConversation(
-        ImConversationType.GROUP,
-        websocketMessage.groupId
-      )
-      if (conversation) {
-        conversation.unreadCount = 0
-      }
-      conversationStore.saveConversations()
+      conversationStore.markConversationAsRead(ImConversationType.GROUP, websocketMessage.groupId)
     },
 
     /** 群聊 RECEIPT：更新某条群消息的 readCount / receiptStatus；群已读关闭时兜底忽略 */