diff --git a/src/components/LayoutWrapper.tsx b/src/components/LayoutWrapper.tsx
index f11cd8a..bef7be4 100644
--- a/src/components/LayoutWrapper.tsx
+++ b/src/components/LayoutWrapper.tsx
@@ -52,8 +52,8 @@ const LayoutWrapper: React.FC = () => {
     <Layout className="layout-wrapper app-root">
       {/* 顶部标题栏，位于左侧菜单栏之上 */}
       <TopBar
-        onToggleMenu={() => setMobileMenuOpen((v) => !v)}
-        onToggleInput={() => isHome && setInputOpen((v) => !v)}
+        onToggleMenu={() => {setInputOpen(false); setMobileMenuOpen((v) => !v);}}
+        onToggleInput={() => {if (isHome) {setMobileMenuOpen(false); setInputOpen((v) => !v);}}}
         isHome={isHome}
       />
       {/* 下方为主布局：左侧菜单 + 右侧内容 */}
diff --git a/src/components/SiderMenu.tsx b/src/components/SiderMenu.tsx
index dfbb465..58717a0 100644
--- a/src/components/SiderMenu.tsx
+++ b/src/components/SiderMenu.tsx
@@ -19,6 +19,18 @@ const SiderMenu: React.FC<Props> = ({ onNavigate, selectedKey, mobileOpen, onMob
   const [collapsed, setCollapsed] = React.useState(false);
   const [selectedKeys, setSelectedKeys] = React.useState<string[]>(['home']);
   const [internalMobileOpen, setInternalMobileOpen] = React.useState(false);
+  const [topbarHeight, setTopbarHeight] = React.useState<number>(56);
+
+  React.useEffect(() => {
+    const update = () => {
+      const el = document.querySelector('.topbar') as HTMLElement | null;
+      const h = el?.clientHeight || 56;
+      setTopbarHeight(h);
+    };
+    update();
+    window.addEventListener('resize', update);
+    return () => window.removeEventListener('resize', update);
+  }, []);
 
   React.useEffect(() => {
     setCollapsed(isMobile);
@@ -57,7 +69,8 @@ const SiderMenu: React.FC<Props> = ({ onNavigate, selectedKey, mobileOpen, onMob
           width="100%"
           open={open}
           onClose={() => setOpen(false)}
-          styles={{ body: { padding: 0 } }}
+          rootStyle={{ top: topbarHeight, height: `calc(100% - ${topbarHeight}px)` }}
+          styles={{ body: { padding: 0 }, header: { display: 'none' } }}
         >
           <div className="sider-header">
             <HeartOutlined style={{ fontSize: 22 }} />