diff --git a/backend/cmd/main.go b/backend/cmd/main.go
index 162ceea..7532f5e 100644
--- a/backend/cmd/main.go
+++ b/backend/cmd/main.go
@@ -286,7 +286,7 @@ func handleS2AProxy(w http.ResponseWriter, r *http.Request) {
 		targetURL += "?" + r.URL.RawQuery
 	}
 
-	logger.Info(fmt.Sprintf("S2A Proxy: %s -> %s", r.URL.Path, targetURL), "", "proxy")
+	logger.Info(fmt.Sprintf("S2A Proxy: %s", targetPath), "", "proxy")
 
 	// 创建代理请求
 	proxyReq, err := http.NewRequest(r.Method, targetURL, r.Body)
@@ -295,9 +295,8 @@ func handleS2AProxy(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// 设置认证头 - 尝试多种格式
+	// 设置认证头
 	adminKey := config.Global.S2AAdminKey
-	logger.Info(fmt.Sprintf("Using admin key (len=%d, prefix=%s...)", len(adminKey), adminKey[:min(8, len(adminKey))]), "", "proxy")
 
 	proxyReq.Header.Set("Authorization", "Bearer "+adminKey)
 	proxyReq.Header.Set("X-API-Key", adminKey)
@@ -323,9 +322,8 @@ func handleS2AProxy(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// 记录响应状态和内容摘要
-	logger.Info(fmt.Sprintf("S2A 响应: status=%d, len=%d, body=%s",
-		resp.StatusCode, len(bodyBytes), string(bodyBytes[:min(200, len(bodyBytes))])), "", "proxy")
+	// 记录响应状态（仅显示状态码和长度）
+	logger.Info(fmt.Sprintf("S2A 响应: status=%d, len=%d", resp.StatusCode, len(bodyBytes)), "", "proxy")
 
 	// 复制响应头
 	for key, values := range resp.Header {
diff --git a/frontend/src/pages/Monitor.tsx b/frontend/src/pages/Monitor.tsx
index 12ddbe1..65b0cf5 100644
--- a/frontend/src/pages/Monitor.tsx
+++ b/frontend/src/pages/Monitor.tsx
@@ -477,8 +477,13 @@ export default function Monitor() {
                             min={10}
                             max={300}
                             value={pollingInterval}
-                            onChange={(e) => setPollingInterval(Number(e.target.value))}
-                            hint="自动刷新号池状态的间隔时间"
+                            onChange={(e) => {
+                                const val = parseInt(e.target.value, 10)
+                                if (!isNaN(val)) {
+                                    setPollingInterval(val)
+                                }
+                            }}
+                            hint="自动刷新号池状态的间隔时间 (10-300秒)"
                         />
                         <div className="p-4 rounded-lg bg-slate-50 dark:bg-slate-800/50">
                             <div className="flex items-center justify-between">