diff --git a/src/frontend/src/components/NotificationCenter.tsx b/src/frontend/src/components/NotificationCenter.tsx
index ec1356b..1350668 100644
--- a/src/frontend/src/components/NotificationCenter.tsx
+++ b/src/frontend/src/components/NotificationCenter.tsx
@@ -1,10 +1,10 @@
 /**
  * 通知中心 — 烽火台
- * 数据来源：未读邮件 + SSE 实时事件
- * 按 topic7-9 设计：按级别分组、操作按钮、任务链接、全部已读
+ * 数据来源：未读邮件（store.mails）+ SSE 事件（store.sseEvents）
+ * 单一 SSE 连接由 store.ts 管理，这里只读数据
  */
 
-import { useState, useEffect } from 'react';
+import { useEffect } from 'react';
 import { useStore } from '../store';
 
 interface NotifItem {
@@ -17,7 +17,6 @@ interface NotifItem {
   source: 'mail' | 'event';
   taskId?: string;
   projectId?: string;
-  actionUrl?: string;
 }
 
 const LEVEL_ORDER: NotifItem['type'][] = ['error', 'warning', 'success', 'info'];
@@ -45,45 +44,14 @@ function mailToNotif(m: any): NotifItem {
 
 export default function NotificationCenter({ onClose }: { onClose: () => void }) {
   const mails = useStore(s => s.mails);
+  const sseEvents = useStore(s => s.sseEvents) as NotifItem[];
   const loadMails = useStore(s => s.loadMails);
-  const [sseEvents, setSseEvents] = useState<NotifItem[]>([]);
-  const [expanded, setExpanded] = useState<string | null>(null);
 
   useEffect(() => { loadMails(); }, []);
 
-  useEffect(() => {
-    const es = new EventSource('/api/events');
-    const importantTypes = ['task_completed', 'task_failed', 'review_result', 'agent_completed', 'task_updated'];
-    const handler = (e: MessageEvent) => {
-      try {
-        const data = JSON.parse(e.data);
-        const etype = (e as any).type || data.event_type || '';
-        if (!importantTypes.includes(etype)) return;
-        const ntype = etype === 'task_failed' ? 'error' : etype === 'task_completed' ? 'success' : etype === 'review_result' ? 'warning' : 'info';
-        setSseEvents(prev => {
-          const item: NotifItem = {
-            id: data.id || `sse-${Date.now()}`,
-            type: ntype,
-            title: data.task_id ? `任务 ${data.task_id?.slice(0, 8)}...` : (data.event_type || etype),
-            message: `${data.old_status || ''} → ${data.new_status || data.event_type || ''}`,
-            time: data.timestamp || new Date().toISOString(),
-            read: false,
-            source: 'event',
-            taskId: data.task_id,
-            projectId: data.project_id,
-          };
-          return [item, ...prev].slice(0, 30);
-        });
-      } catch { /* ignore */ }
-    };
-    importantTypes.forEach(t => es.addEventListener(t, handler));
-    es.onerror = () => { es.close(); };
-    return () => { es.close(); };
-  }, []);
-
   // 合并 + 分组
   const mailNotifs = (mails || []).slice(0, 20).map(mailToNotif);
-  const allNotifs = [...sseEvents, ...mailNotifs];
+  const allNotifs: NotifItem[] = [...(sseEvents || []), ...mailNotifs];
   const unread = allNotifs.filter(n => !n.read).length;
 
   const grouped = LEVEL_ORDER.map(type => ({
@@ -102,12 +70,15 @@ export default function NotificationCenter({ onClose }: { onClose: () => void })
       loadMails();
     }
     if (notif.source === 'event') {
-      setSseEvents(prev => prev.map(n => n.id === notif.id ? { ...n, read: true } : n));
+      useStore.setState({
+        sseEvents: (useStore.getState().sseEvents as NotifItem[]).map(
+          n => n.id === notif.id ? { ...n, read: true } : n
+        ),
+      });
     }
   };
 
   const handleMarkAllRead = async () => {
-    // 标记所有邮件已读
     for (const n of allNotifs.filter(n => !n.read && n.source === 'mail')) {
       await fetch(`/api/mail/${n.id}`, {
         method: 'PATCH',
@@ -116,7 +87,9 @@ export default function NotificationCenter({ onClose }: { onClose: () => void })
       });
     }
     loadMails();
-    setSseEvents(prev => prev.map(n => ({ ...n, read: true })));
+    useStore.setState({
+      sseEvents: (useStore.getState().sseEvents as NotifItem[]).map(n => ({ ...n, read: true })),
+    });
   };
 
   const handleViewTask = (notif: NotifItem) => {
@@ -158,15 +131,12 @@ export default function NotificationCenter({ onClose }: { onClose: () => void })
                     const s = TYPE_STYLES[n.type];
                     return (
                       <div key={n.id} onClick={() => {
-                        // 直接操作：有任务链接就跳转，否则标记已读
                         if (n.taskId) { handleViewTask(n); }
                         else if (!n.read) { handleMarkRead(n); }
                       }} style={{
                         padding: '8px 10px', borderRadius: 8,
                         background: 'var(--panel2)', border: `1px solid ${n.read ? 'var(--line)' : s.color + '44'}`,
-                        opacity: n.read ? 0.5 : 1,
-                        cursor: 'pointer',
-                        transition: 'opacity 0.15s',
+                        opacity: n.read ? 0.5 : 1, cursor: 'pointer',
                       }}>
                         <div style={{ display: 'flex', gap: 6, alignItems: 'center' }}>
                           <span style={{ fontSize: 12 }}>{s.icon}</span>
@@ -174,7 +144,7 @@ export default function NotificationCenter({ onClose }: { onClose: () => void })
                           <span style={{ fontSize: 9, background: 'var(--panel)', padding: '1px 4px', borderRadius: 3, color: 'var(--muted)' }}>
                             {n.source === 'mail' ? '✉️' : '📡'}
                           </span>
-                          {!n.read && <span style={{ width: 6, height: 6, borderRadius: 3, background: s.color }} />}
+                          {!n.read && <span style={{ width: 6, height: 6, borderRadius: 3, background: s.color, display: 'inline-block' }} />}
                         </div>
                         <div style={{ fontSize: 10, color: 'var(--muted)', marginTop: 2 }}>{n.message}</div>
                         <div style={{ fontSize: 9, color: 'var(--muted)', marginTop: 2, opacity: 0.6 }}>