diff --git a/alert_logger.py b/alert_logger.py
index 8aa796e9..0eea529b 100644
--- a/alert_logger.py
+++ b/alert_logger.py
@@ -68,6 +68,23 @@ def record_alert(level="error", source="", title="", detail="", code="", clear_a
     except Exception:
         pass
 
+    # 2.5 写入 broadcast_messages 表（统一消息源，异常=system_error类）
+    try:
+        from messenger import _classify, DB
+        import sqlite3 as _sq3
+        _cat = _classify(title, detail)
+        # 异常/告警统一归为 system_error 类（供右上角异常浮窗筛选）
+        if level in ("error", "critical", "warning"):
+            _cat = "system_error"
+        _conn = _sq3.connect(DB, timeout=30)
+        _conn.execute(
+            "INSERT INTO broadcast_messages (ts, category, title, content, source) VALUES (?,?,?,?,?)",
+            (ts_str, _cat, title, detail, source))
+        _conn.commit()
+        _conn.close()
+    except Exception:
+        pass
+
     # 3. XMPP 告警（非 info 级别才发，避免轰炸）→ 本地 XMPP 发送服务 :5805
     if level != "info":
         try: