diff --git a/internal/router/router.go b/internal/router/router.go
index 606c531..69458fd 100644
--- a/internal/router/router.go
+++ b/internal/router/router.go
@@ -246,10 +246,10 @@ func Setup(c *Controllers) *gin.Engine {
 		
 		html := string(data)
 		
-		// 只注入配置变量，不做字符串替换
-		// 前端会使用这些变量来构建正确的路径
-		configScript := `<script>window.__BASE_URL__ = "` + urlPrefix + `"; window.__API_VERSION__ = "/api/v1";</script>`
-		html = strings.Replace(html, "</head>", configScript+"</head>", 1)
+		// 在第一个 script 标签中注入配置
+		// 这样可以确保在资源加载前就设置好 base 标签
+		configScript := `window.__BASE_URL__ = "` + urlPrefix + `"; window.__API_VERSION__ = "/api/v1";`
+		html = strings.Replace(html, "// 后端会在这里注入:", configScript + "\n      //", 1)
 		
 		ctx.Header("Cache-Control", "no-cache, no-store, must-revalidate")
 		ctx.Data(200, "text/html; charset=utf-8", []byte(html))
diff --git a/web/index.html b/web/index.html
index 1644274..c9497ac 100644
--- a/web/index.html
+++ b/web/index.html
@@ -2,20 +2,19 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
+    <script>
+      // 这个脚本会被后端注入 __BASE_URL__，必须在所有资源加载前执行
+      // 后端会在这里注入: window.__BASE_URL__ = "/baihu";
+    </script>
+    <script>
+      // 在任何资源加载前设置 base 标签
+      if (window.__BASE_URL__) {
+        document.write('<base href="' + window.__BASE_URL__ + '/">');
+      }
+    </script>
     <link rel="icon" type="image/svg+xml" href="/logo.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title></title>
-    <script>
-      // 在资源加载前设置 base 标签
-      (function() {
-        var baseUrl = window.__BASE_URL__;
-        if (baseUrl) {
-          var base = document.createElement('base');
-          base.href = baseUrl + '/';
-          document.head.appendChild(base);
-        }
-      })();
-    </script>
   </head>
   <body>
     <div id="app"></div>
