Update App.tsx

App.tsx

@@ -244,7 +244,8 @@ const AppContent: React.FC = () => {
   const showLiveAssistant = currentUser && (currentUser.role === UserRole.ADMIN || currentUser.aiAccess);
 
   return (
-    <div className="flex h-screen bg-gray-50 overflow-hidden">
+    // Changed h-screen to fixed inset-0 to prevent body scrolling on mobile
+    <div className="fixed inset-0 flex bg-gray-50 overflow-hidden">
       <Sidebar
         currentView={currentView}
         onChangeView={(view) => { setCurrentView(view); setSidebarOpen(false); }}
@@ -254,10 +255,10 @@ const AppContent: React.FC = () => {
         onClose={() => setSidebarOpen(false)}
       />
       
-      <div className="flex-1 flex flex-col w-full relative">
+      <div className="flex-1 flex flex-col w-full relative h-full">
         <Header user={currentUser!} title={viewTitles[currentView] || '智慧校园'} onMenuClick={() => setSidebarOpen(true)}/>
-        <main className="flex-1 overflow-x-hidden overflow-y-auto bg-gray-50 p-4 md:p-6 w-full">
-          <div className="max-w-7xl mx-auto w-full h-full">
+        <main className="flex-1 overflow-x-hidden overflow-y-auto bg-gray-50 p-4 md:p-6 w-full relative">
+          <div className="max-w-7xl mx-auto w-full min-h-full">
             {renderContent()}
           </div>
         </main>