diff --git a/frontend/config.php b/frontend/config.php
index 9ae55a7..7be316f 100644
--- a/frontend/config.php
+++ b/frontend/config.php
@@ -52,7 +52,7 @@ if (!empty($missingKeys)) {
 }
 
 // 定义常量
-define('API_BASE_URL', '''');
+define('API_BASE_URL', '');
 define('API_TIMEOUT', (int)$config['API_TIMEOUT']);
 define('JWT_STORAGE_KEY', $config['JWT_STORAGE_KEY']);
 define('USER_STORAGE_KEY', $config['USER_STORAGE_KEY']);