diff --git a/index.html b/index.html
index 6185d08..c9868c2 100644
--- a/index.html
+++ b/index.html
@@ -597,7 +597,7 @@
 
       <!-- 滚动内容容器 -->
       <div class="flex-1 overflow-y-auto custom-scrollbar">
-        <div id="mainAppContainer" class="container mx-auto px-4 py-6 md:py-8 max-w-6xl animate-fade-in-up">
+        <div id="mainAppContainer" class="container h-full flex flex-col justify-center mx-auto px-4 py-6 md:py-8 max-w-6xl animate-fade-in-up">
 
             <!-- ===================== -->
             <!-- 顶部欢迎区 (Modern Dashboard Style) -->