diff --git a/flutter_monisuo/lib/ui/pages/main/main_page.dart b/flutter_monisuo/lib/ui/pages/main/main_page.dart
index 9b86a29..d58837f 100644
--- a/flutter_monisuo/lib/ui/pages/main/main_page.dart
+++ b/flutter_monisuo/lib/ui/pages/main/main_page.dart
@@ -1,9 +1,7 @@
 import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
-import 'package:provider/provider.dart';
 import '../../../core/theme/app_spacing.dart';
-import '../../../providers/auth_provider.dart';
 import '../home/home_page.dart';
 import '../market/market_page.dart';
 import '../trade/trade_page.dart';
@@ -76,19 +74,10 @@ class MainPageState extends State<MainPage> {
 
     return Scaffold(
       backgroundColor: colorScheme.background,
-      body: Column(
-        children: [
-          // 公共顶部导航栏
-          const _TopAppBar(),
-          // 页面内容
-          Expanded(
-            child: LazyIndexedStack(
-              index: _currentIndex,
-              loadedIndexes: _loadedPages,
-              children: _pages,
-            ),
-          ),
-        ],
+      body: LazyIndexedStack(
+        index: _currentIndex,
+        loadedIndexes: _loadedPages,
+        children: _pages,
       ),
       bottomNavigationBar: _BottomNavBar(
         items: _navItems,
@@ -99,125 +88,6 @@ class MainPageState extends State<MainPage> {
   }
 }
 
-/// 顶部导航栏 - 玻璃拟态效果
-class _TopAppBar extends StatelessWidget {
-  const _TopAppBar();
-
-  @override
-  Widget build(BuildContext context) {
-    final colorScheme = Theme.of(context).colorScheme;
-    final isDark = Theme.of(context).brightness == Brightness.dark;
-
-    return Container(
-      height: 64, // 顶部导航栏高度保持固定
-      decoration: BoxDecoration(
-        color: colorScheme.surfaceBright.withOpacity(0.4),
-        boxShadow: [
-          BoxShadow(
-            color: colorScheme.primary.withOpacity(isDark ? 0.15 : 0.08),
-            blurRadius: 64, // 大模糊效果保持固定
-            offset: const Offset(0, 32),
-          ),
-        ],
-      ),
-      child: ClipRRect(
-        child: BackdropFilter(
-          filter: ImageFilter.blur(sigmaX: AppSpacing.xl, sigmaY: AppSpacing.xl),
-          child: Padding(
-            padding: EdgeInsets.symmetric(horizontal: AppSpacing.lg),
-            child: Row(
-              mainAxisAlignment: MainAxisAlignment.spaceBetween,
-              children: [
-                // 左侧头像和标题
-                Consumer<AuthProvider>(
-                  builder: (context, auth, _) {
-                    return Row(
-                      children: [
-                        // 头像
-                        Container(
-                          width: 32, // 头像尺寸保持固定
-                          height: 32,
-                          decoration: BoxDecoration(
-                            shape: BoxShape.circle,
-                            border: Border.all(
-                              color: colorScheme.outlineVariant.withOpacity(0.2),
-                            ),
-                          ),
-                          child: CircleAvatar(
-                            backgroundColor: colorScheme.surfaceContainerHigh,
-                            child: Text(
-                              auth.user?.avatarText ?? 'U',
-                              style: TextStyle(
-                                color: colorScheme.primary,
-                                fontWeight: FontWeight.bold,
-                                fontSize: 12,
-                              ),
-                            ),
-                          ),
-                        ),
-                        SizedBox(width: AppSpacing.sm + AppSpacing.xs),
-                        // 标题
-                        Text(
-                          '模拟所',
-                          style: TextStyle(
-                            color: colorScheme.primary,
-                            fontWeight: FontWeight.w900,
-                            letterSpacing: -0.5,
-                            fontSize: 16,
-                          ),
-                        ),
-                      ],
-                    );
-                  },
-                ),
-                // 右侧操作按钮
-                Row(
-                  children: [
-                    _IconBtn(
-                      icon: LucideIcons.search,
-                      onTap: () {},
-                    ),
-                    SizedBox(width: AppSpacing.sm),
-                    _IconBtn(
-                      icon: LucideIcons.bell,
-                      onTap: () {},
-                    ),
-                  ],
-                ),
-              ],
-            ),
-          ),
-        ),
-      ),
-    );
-  }
-}
-
-/// 图标按钮
-class _IconBtn extends StatelessWidget {
-  final IconData icon;
-  final VoidCallback onTap;
-
-  const _IconBtn({required this.icon, required this.onTap});
-
-  @override
-  Widget build(BuildContext context) {
-    final colorScheme = Theme.of(context).colorScheme;
-
-    return GestureDetector(
-      onTap: onTap,
-      child: Container(
-        padding: EdgeInsets.all(AppSpacing.sm),
-        child: Icon(
-          icon,
-          color: colorScheme.onSurfaceVariant,
-          size: 22,
-        ),
-      ),
-    );
-  }
-}
-
 /// 底部导航栏 - "The Kinetic Vault" 设计风格
 class _BottomNavBar extends StatelessWidget {
   final List<_NavItem> items;