diff --git a/src/layouts/MainLayout.js b/src/layouts/MainLayout.js
index 61ffd9eb..06d1ae4c 100644
--- a/src/layouts/MainLayout.js
+++ b/src/layouts/MainLayout.js
@@ -35,7 +35,7 @@ export default function MainLayout() {
             <MemoizedHomeNavbar />
 
             {/* 页面内容区域 - flex: 1 占据剩余空间，包含错误边界、懒加载 */}
-            <Box flex="1" w="100%" position="relative" overflow="hidden">
+            <Box flex="1" w="100%" position="relative" overflow="hidden" pt="72px">
                 <ErrorBoundary>
                     <Suspense fallback={<PageLoader message="页面加载中..." />}>
                         <Outlet />
diff --git a/src/views/AgentChat/index.js b/src/views/AgentChat/index.js
index 3356ee52..54bca17e 100644
--- a/src/views/AgentChat/index.js
+++ b/src/views/AgentChat/index.js
@@ -674,11 +674,11 @@ const AgentChat = () => {
   ];
 
   return (
-    <Box minH="100vh" position="relative" overflow="hidden" pt="80px" zIndex={0}>
+    <Box minH="100vh" position="relative" overflow="hidden" zIndex={0}>
       {/* 背景渐变层 */}
       <Box
         position="absolute"
-        top="80px"
+        top={0}
         left={0}
         right={0}
         bottom={0}
@@ -712,7 +712,7 @@ const AgentChat = () => {
         zIndex={0}
       />
 
-      <Flex h="calc(100vh - 80px)" overflow="hidden" position="relative" zIndex={1}>
+      <Flex h="calc(100vh - 72px)" overflow="hidden" position="relative" zIndex={1}>
         {/* 左侧栏 - 深色毛玻璃 */}
         <AnimatePresence>
           {isLeftSidebarOpen && (