diff --git a/frontend/src/components/NotificationBell.vue b/frontend/src/components/NotificationBell.vue
index 85ead6d..33a8cde 100644
--- a/frontend/src/components/NotificationBell.vue
+++ b/frontend/src/components/NotificationBell.vue
@@ -172,18 +172,30 @@ const handleMarkAllRead = async () => {
 
 // 获取图标名称
 const getIconName = (notification: Notification) => {
-  switch (notification.notificationType) {
-    case 'system':
-      return 'info'
-    case 'task':
-      return 'document'
-    case 'score':
-      return 'trophy'
-    case 'review':
-      return 'star'
-    default:
-      return 'bell'
+  const type = (notification.notificationType || '').toLowerCase()
+  
+  // 匹配系统通知
+  if (type === 'system') {
+    return 'info'
   }
+  
+  // 匹配任务相关通知（task, task_approval, task_review, task_completed, task_rejected等）
+  if (type.includes('task')) {
+    return 'document'
+  }
+  
+  // 匹配积分通知
+  if (type.includes('score')) {
+    return 'trophy'
+  }
+  
+  // 匹配评审通知
+  if (type === 'review' || type.includes('review')) {
+    return 'star'
+  }
+  
+  // 默认铃铛图标
+  return 'bell'
 }
 
 // 格式化时间
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index 0323993..ddea756 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -2317,8 +2317,10 @@ const handleApproveTwoLevelTask = async (task: Task) => {
           message.success('接单部门审核通过，任务已发布到大厅')
         }
         
-        // 刷新列表
+        // 刷新列表和数量
         loadPendingApprovalTasks()
+        loadAllTabCounts()
+        loadDashboardStats()
       } catch (error: any) {
         console.error('审核失败:', error)
         message.error(error.msg || error.message || '审核失败')
@@ -2368,8 +2370,10 @@ const handleRejectTwoLevelTask = async (task: Task) => {
           message.success('已驳回，任务已退回给需求部门负责人')
         }
         
-        // 刷新列表
+        // 刷新列表和数量
         loadPendingApprovalTasks()
+        loadAllTabCounts()
+        loadDashboardStats()
       } catch (error: any) {
         console.error('驳回失败:', error)
         message.error(error.msg || error.message || '驳回失败')
@@ -2712,6 +2716,7 @@ const handleUpdateProgress = (task: Task) => {
         await taskApi.updateTaskProgress(task.id, newProgress)
         message.success('进度更新成功')
         loadInProgressTasks()
+        loadAllTabCounts()
         loadDashboardStats()
       } catch (error: any) {
         message.error(error.message || '进度更新失败')
@@ -2746,6 +2751,7 @@ const handleCompleteTask = (task: Task) => {
         await taskApi.completeTask(task.id, { deliveryPath })
         message.success('任务已提交审核')
         loadInProgressTasks()
+        loadAllTabCounts()
         loadDashboardStats()
       } catch (error: any) {
         message.error(error.message || '任务完结失败')
@@ -2754,25 +2760,40 @@ const handleCompleteTask = (task: Task) => {
   })
 }
 
-// 审核通过
+// 审核通过（使用两级审核流程）
 const handleApproveTask = (task: Task) => {
   Modal.confirm({
     title: '审核通过',
     content: `确认通过任务审核：${task.title}？`,
     onOk: async () => {
       try {
-        await taskApi.approveTask(task.id)
-        message.success('审核通过')
+        const approvalData: TaskApprovalDTO = {
+          comment: '审核通过'
+        }
+        
+        // 根据当前审核角色调用不同的API
+        if (task.currentApproverRole === 'demand_leader') {
+          await taskApi.approveDemandLevel(task.id!, approvalData)
+          message.success('需求部门审核通过')
+        } else if (task.currentApproverRole === 'receiving_leader') {
+          await taskApi.approveReceivingLevel(task.id!, approvalData)
+          message.success('接单部门审核通过，任务已发布到大厅')
+        } else {
+          message.error('无法确定审核角色')
+          return
+        }
+        
         loadReviewTasks()
+        loadAllTabCounts()
         loadDashboardStats()
       } catch (error: any) {
-        message.error(error.message || '审核失败')
+        message.error(error.msg || error.message || '审核失败')
       }
     }
   })
 }
 
-// 驳回任务
+// 驳回任务（使用两级审核流程）
 const handleRejectTask = (task: Task) => {
   let reason = ''
   
@@ -2795,12 +2816,23 @@ const handleRejectTask = (task: Task) => {
       }
       
       try {
-        await taskApi.rejectTask(task.id, { reason })
-        message.success('任务已驳回')
+        // 根据当前审核角色调用不同的API
+        if (task.currentApproverRole === 'demand_leader') {
+          await taskApi.rejectByDemandLeader(task.id!, reason)
+          message.success('需求部门已驳回')
+        } else if (task.currentApproverRole === 'receiving_leader') {
+          await taskApi.rejectByReceivingLeader(task.id!, reason)
+          message.success('接单部门已驳回')
+        } else {
+          message.error('无法确定审核角色')
+          return Promise.reject()
+        }
+        
         loadReviewTasks()
+        loadAllTabCounts()
         loadDashboardStats()
       } catch (error: any) {
-        message.error(error.message || '驳回失败')
+        message.error(error.msg || error.message || '驳回失败')
       }
     }
   })
@@ -2867,9 +2899,45 @@ const getTaskStatusText = (status: string) => {
   return statusMap[status] || status
 }
 
+// 加载所有Tab的数量统计
+const loadAllTabCounts = async () => {
+  try {
+    // 加载进行中任务数量
+    const inProgressRes = await taskApi.getTasks({
+      status: 'in_progress',
+      role: 'receiver',
+      page: 1,
+      pageSize: 1
+    })
+    if (inProgressRes.data && inProgressRes.data.total !== undefined) {
+      inProgressTotal.value = inProgressRes.data.total
+    }
+
+    // 加载待审核任务数量
+    const reviewRes = await taskApi.getAllPendingApprovalTasks({
+      page: 1,
+      pageSize: 1
+    })
+    if (reviewRes.data && reviewRes.data.total !== undefined) {
+      reviewTotal.value = reviewRes.data.total
+    }
+
+    // 加载待我审核任务数量（仅部门负责人）
+    if (isDepartmentLeader.value) {
+      const pendingApprovalRes = await taskApi.getPendingApprovalTasks()
+      if (pendingApprovalRes.code === 200) {
+        pendingApprovalTotal.value = (pendingApprovalRes.data || []).length
+      }
+    }
+  } catch (error) {
+    console.error('加载Tab数量统计失败:', error)
+  }
+}
+
 onMounted(() => {
   loadConfigs()
   loadDashboardStats()
+  loadAllTabCounts() // 加载所有Tab的数量统计
   loadTasks()
   // 监听配置更新事件
   window.addEventListener('configUpdated', handleConfigUpdate as EventListener)