diff --git a/templates/index.html b/templates/index.html
index 2fda906..66a6ab7 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -342,7 +342,8 @@
             
             ws.onopen = () => {
                 console.log('WebSocket已连接');
-                document.getElementById('wsStatus')?.textContent = '已连接';
+                const wsStatus = document.getElementById('wsStatus');
+                if (wsStatus) wsStatus.textContent = '已连接';
             };
             ws.onmessage = (event) => {
                 console.log('WebSocket收到消息:', event.data);
@@ -350,12 +351,14 @@
             };
             ws.onclose = (e) => {
                 console.log('WebSocket断开:', e.code, e.reason);
-                document.getElementById('wsStatus')?.textContent = '断开';
+                const wsStatus = document.getElementById('wsStatus');
+                if (wsStatus) wsStatus.textContent = '断开';
                 setTimeout(connectWebSocket, 3000);
             };
             ws.onerror = (e) => {
                 console.error('WebSocket错误:', e);
-                document.getElementById('wsStatus')?.textContent = '错误';
+                const wsStatus = document.getElementById('wsStatus');
+                if (wsStatus) wsStatus.textContent = '错误';
             };
         }