diff --git a/yunkes/src/components/staffchat/ChatMain.vue b/yunkes/src/components/staffchat/ChatMain.vue
index 1cb1bd1..ec7b740 100644
--- a/yunkes/src/components/staffchat/ChatMain.vue
+++ b/yunkes/src/components/staffchat/ChatMain.vue
@@ -41,6 +41,12 @@ const total = ref(0)
 /** 首次加载是否完成(msgid 定位只在已加载数据上尝试,避免误报「不在当前页」)。 */
 const initialLoaded = ref(false)
 
+// 请求序号防竞态:快速切换会话时,旧会话的请求仍在途、响应后到,若不拦截会把
+// 新会话已渲染的 messages/total/currentPage/标题 覆盖回旧会话数据(自愈但错乱)。
+// 每次 loadInitial/loadTalkerName 自增取号,响应回来时号不对即整体丢弃。
+let loadSeq = 0
+let nameSeq = 0
+
 const isGroup = computed(() => props.kind === 'group')
 /** 是否已选定具体会话(决定是否拉消息 / 显示空态)。账号级入口(talkerId='')→ 空态。 */
 const hasActive = computed(() => !!props.talkerId)
@@ -62,12 +68,14 @@ const visibleMessages = computed(() => {
 const talkerName = ref<string | null>(null)
 
 async function loadTalkerName(): Promise<void> {
+  const seq = ++nameSeq
   talkerName.value = null
   if (!hasActive.value) return
   try {
     if (isGroup.value && props.talkerId) {
       // 群名(room_id 精确单行直查,不再拉整页群列表)
       const res = await getGroups({ channel: CHANNEL, room_id: props.talkerId, page: 1, page_size: 1 })
+      if (seq !== nameSeq) return // 竞态:已有更新的请求,丢弃旧会话响应
       talkerName.value = res.items[0]?.room_name || null
     } else if (props.talkerId) {
       // 客户昵称
@@ -78,6 +86,7 @@ async function loadTalkerName(): Promise<void> {
         page: 1,
         page_size: 1,
       })
+      if (seq !== nameSeq) return // 竞态:已有更新的请求,丢弃旧会话响应
       const c = res.items[0]
       talkerName.value = c?.friend_nickname || c?.friend_remark || null
     }
@@ -184,6 +193,7 @@ function queryFor(pageNum: number) {
  * returns asc, so the last page holds the newest slice.
  */
 async function loadInitial(): Promise<void> {
+  const seq = ++loadSeq
   highlightId.value = null
   // 账号级入口(无具体会话):不拉消息,清空状态,留空态给右列。
   if (!hasActive.value) {
@@ -193,12 +203,15 @@ async function loadInitial(): Promise<void> {
     currentPage.value = 1
     pendingMsgid.value = null
     initialLoaded.value = true
+    // 本分支已取最新序号,在途旧请求的 finally 会被拦下,须自行复位加载态
+    loading.value = false
     return
   }
   loading.value = true
   errorMsg.value = null
   try {
     const first = await getMessages(queryFor(1))
+    if (seq !== loadSeq) return // 竞态:已有更新的加载,丢弃旧会话响应
     total.value = first.total
     totalPages.value = Math.max(1, Math.ceil(first.total / PAGE_SIZE))
 
@@ -206,16 +219,21 @@ async function loadInitial(): Promise<void> {
       messages.value = first.items
     } else {
       const last = await getMessages(queryFor(totalPages.value))
+      if (seq !== loadSeq) return // 竞态:已有更新的加载,丢弃旧会话响应
       messages.value = last.items
     }
     currentPage.value = totalPages.value
     scrollToBottom()
   } catch (e) {
+    if (seq !== loadSeq) return // 竞态:旧请求的报错不展示(会话已切换)
     errorMsg.value = (e as Error).message
     messages.value = []
   } finally {
-    loading.value = false
-    initialLoaded.value = true
+    // 只有最新请求才能复位加载态:被取代的旧请求不得清掉新请求的 loading
+    if (seq === loadSeq) {
+      loading.value = false
+      initialLoaded.value = true
+    }
   }
   // DOM 渲染完再尝试 msgid 定位(覆盖 scrollToBottom 的置底)。
   nextTick(() => tryLocate())
diff --git a/yunkes/src/views/ChatTimeline.vue b/yunkes/src/views/ChatTimeline.vue
index e38e641..d442c89 100644
--- a/yunkes/src/views/ChatTimeline.vue
+++ b/yunkes/src/views/ChatTimeline.vue
@@ -42,6 +42,12 @@ const currentPage = ref(1)
 const totalPages = ref(1)
 const total = ref(0)
 
+// 请求序号防竞态:快速切换会话时,旧会话的请求仍在途、响应后到,若不拦截会把
+// 新会话已渲染的 messages/total/currentPage/标题 覆盖回旧会话数据(自愈但错乱)。
+// 每次 loadInitial/loadTalkerName 自增取号,响应回来时号不对即整体丢弃。
+let loadSeq = 0
+let nameSeq = 0
+
 const channelTyped = computed(() => props.channel as Channel)
 
 /** True when this timeline is a group chat (drives the query + title). */
@@ -72,12 +78,14 @@ const visibleMessages = computed(() => {
 const talkerName = ref<string | null>(null)
 
 async function loadTalkerName(): Promise<void> {
+  const seq = ++nameSeq
   talkerName.value = null
   if (!hasActive.value) return
   try {
     if (isGroup.value && props.roomId) {
       // 群名(room_id 精确单行直查,不再拉整页群列表)
       const res = await getGroups({ channel: channelTyped.value, room_id: props.roomId, page: 1, page_size: 1 })
+      if (seq !== nameSeq) return // 竞态:已有更新的请求,丢弃旧会话响应
       talkerName.value = res.items[0]?.room_name || null
     } else if (props.talkerId) {
       // 客户昵称
@@ -88,6 +96,7 @@ async function loadTalkerName(): Promise<void> {
         page: 1,
         page_size: 1,
       })
+      if (seq !== nameSeq) return // 竞态:已有更新的请求,丢弃旧会话响应
       const c = res.items[0]
       talkerName.value = c?.friend_nickname || c?.friend_remark || null
     }
@@ -188,18 +197,22 @@ function queryFor(pageNum: number) {
  * returns asc, so the last page holds the newest slice.
  */
 async function loadInitial(): Promise<void> {
+  const seq = ++loadSeq
   // 账号级入口(无具体会话):不拉消息,清空状态,留空态给右侧主区。
   if (!hasActive.value) {
     messages.value = []
     total.value = 0
     totalPages.value = 1
     currentPage.value = 1
+    // 本分支已取最新序号,在途旧请求的 finally 会被拦下,须自行复位加载态
+    loading.value = false
     return
   }
   loading.value = true
   errorMsg.value = null
   try {
     const first = await getMessages(queryFor(1))
+    if (seq !== loadSeq) return // 竞态:已有更新的加载,丢弃旧会话响应
     total.value = first.total
     totalPages.value = Math.max(1, Math.ceil(first.total / PAGE_SIZE))
 
@@ -207,15 +220,18 @@ async function loadInitial(): Promise<void> {
       messages.value = first.items
     } else {
       const last = await getMessages(queryFor(totalPages.value))
+      if (seq !== loadSeq) return // 竞态:已有更新的加载,丢弃旧会话响应
       messages.value = last.items
     }
     currentPage.value = totalPages.value
     scrollToBottom()
   } catch (e) {
+    if (seq !== loadSeq) return // 竞态:旧请求的报错不展示(会话已切换)
     errorMsg.value = (e as Error).message
     messages.value = []
   } finally {
-    loading.value = false
+    // 只有最新请求才能复位加载态:被取代的旧请求不得清掉新请求的 loading
+    if (seq === loadSeq) loading.value = false
   }
 }