diff --git a/app/src/main/java/com/xiaoqu/watch/service/manager/NotificationManager.kt b/app/src/main/java/com/xiaoqu/watch/service/manager/NotificationManager.kt
index 69058d4..0d946ad 100644
--- a/app/src/main/java/com/xiaoqu/watch/service/manager/NotificationManager.kt
+++ b/app/src/main/java/com/xiaoqu/watch/service/manager/NotificationManager.kt
@@ -66,6 +66,10 @@ class NotificationManager @Inject constructor(
     /** 上次统计数据（对比红点用） */
     var lastStats: TaskStatistics? = null
 
+    /** 通知到达前的统计快照（用于非首页返回后精确 diffStats） */
+    var preNotificationStats: TaskStatistics? = null
+        private set
+
     /** 协程作用域 */
     private val scope = CoroutineScope(Dispatchers.Main + SupervisorJob())
 
@@ -111,6 +115,11 @@ class NotificationManager @Inject constructor(
         val taskIds = parseTaskIds(rawJson)
         if (taskIds.isEmpty()) return
 
+        // 保存通知到达前的统计快照（只在首次通知时保存，后续累积不覆盖）
+        if (preNotificationStats == null) {
+            preNotificationStats = lastStats?.copy()
+        }
+
         addTaskIds(taskIds)
 
         // 震动 + 亮屏（只在首条时触发，暂存的合并后不重复震动）
@@ -152,6 +161,7 @@ class NotificationManager @Inject constructor(
         _pendingTaskIds.clear()
         acknowledgedCards.clear()
         _cardIncrements.clear()
+        preNotificationStats = null
         Timber.d("通知: 已清空全部未读")
     }
 
diff --git a/app/src/main/java/com/xiaoqu/watch/ui/home/HomeFragment.kt b/app/src/main/java/com/xiaoqu/watch/ui/home/HomeFragment.kt
index 4a3c480..25c374b 100644
--- a/app/src/main/java/com/xiaoqu/watch/ui/home/HomeFragment.kt
+++ b/app/src/main/java/com/xiaoqu/watch/ui/home/HomeFragment.kt
@@ -130,19 +130,59 @@ class HomeFragment : BaseFragment<FragmentHomeBinding>() {
 
     override fun onResume() {
         super.onResume()
-        // 从其他页面返回时，只恢复未查看分类的红点
-        if (notificationManager.pendingCount > 0) {
-            val ack = notificationManager.acknowledgedCards
-            if (2 !in ack) dotPool.visibility = View.VISIBLE
-            if (3 !in ack) dotPunch.visibility = View.VISIBLE
-            if (4 !in ack) dotComplete.visibility = View.VISIBLE
-            updateNewTaskHint()
-        } else {
+        if (notificationManager.pendingCount <= 0) {
             // 全部已查看 → 清除所有提示
             dotPool.visibility = View.GONE
             dotPunch.visibility = View.GONE
             dotComplete.visibility = View.GONE
             tvNewTaskHint.visibility = View.GONE
+            return
+        }
+
+        // 有未读通知 → 用 preNotificationStats 精确对比红点
+        // （preNotificationStats 是通知到达前的快照，不会被 onViewCreated 的 fetchStatistics 覆盖）
+        val ack = notificationManager.acknowledgedCards
+        val baseline = notificationManager.preNotificationStats
+        if (baseline != null) {
+            // 精确模式：对比快照和当前统计，只给变化的分类显示红点
+            fetchStatisticsForDots(baseline, ack)
+        } else {
+            // 无快照（首次加载等）：已查看的不显示，未查看的显示
+            if (2 !in ack) dotPool.visibility = View.VISIBLE
+            if (3 !in ack) dotPunch.visibility = View.VISIBLE
+            if (4 !in ack) dotComplete.visibility = View.VISIBLE
+        }
+        updateNewTaskHint()
+    }
+
+    /**
+     * 用通知前快照精确对比红点（非首页返回时调用）
+     * @param baseline 通知到达前的统计快照
+     * @param acknowledged 已查看的分类集合
+     */
+    private fun fetchStatisticsForDots(baseline: com.xiaoqu.watch.data.task.TaskStatistics, acknowledged: Set<Int>) {
+        viewLifecycleOwner.lifecycleScope.launch {
+            val result = safeApiCall { taskApi.getStatistics() }
+            if (result is ApiResult.Success && result.data != null) {
+                val data = result.data
+                val changed = notificationManager.diffStats(baseline, data)
+
+                // 只给变化且未查看的分类显示红点
+                dotPool.visibility = if (2 in changed && 2 !in acknowledged) View.VISIBLE else View.GONE
+                dotPunch.visibility = if (3 in changed && 3 !in acknowledged) View.VISIBLE else View.GONE
+                dotComplete.visibility = if (4 in changed && 4 !in acknowledged) View.VISIBLE else View.GONE
+
+                // 记录增量（供 acknowledgeCard 扣减用）
+                if (2 in changed) notificationManager.recordCardIncrement(2, data.waitForTask - baseline.waitForTask)
+                if (3 in changed) notificationManager.recordCardIncrement(3, data.treatTask - baseline.treatTask)
+                if (4 in changed) notificationManager.recordCardIncrement(4, data.incompleteTask - baseline.incompleteTask)
+
+                // 更新数字
+                tvPoolNum.text = data.waitForTask.toString()
+                tvPunchNum.text = data.treatTask.toString()
+                tvCompleteNum.text = data.incompleteTask.toString()
+                notificationManager.lastStats = data
+            }
         }
     }