diff --git a/lib/main.dart b/lib/main.dart
index 4dfc29f..fe092bc 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -19,7 +19,7 @@ void main() async {
 
   // Use it only after calling `hiddenWindowAtLaunch`
   WindowOptions windowOptions = const WindowOptions(
-    size: Size(800, 600),
+    size: Size(1600, 900), // Increased size to 1600x900
     center: true,
     backgroundColor: Colors.transparent,
     skipTaskbar: false,
@@ -131,6 +131,8 @@ class _MainPageState extends State<MainPage> with WindowListener {
     // Needs `implements WindowListener` and `windowManager.addListener(this);`
     // and `windowManager.removeListener(this);` in dispose
     windowManager.setPreventClose(true);
+    // Set aspect ratio after ensuring initialized
+    _setWindowConfig();
   }
 
   @override
@@ -222,8 +224,14 @@ class _MainPageState extends State<MainPage> with WindowListener {
   Future<void> _showWindow() async {
     bool isVisible = await windowManager.isVisible();
     if (!isVisible) {
+      // Ensure size and position before showing
+      await windowManager.setSize(const Size(1600, 900)); // Set desired size
+      await windowManager.center(); // Center the window
       await windowManager.show();
       await windowManager.focus();
+    } else {
+      // If already visible, just bring to front and focus
+      await windowManager.focus();
     }
   }
 
@@ -279,6 +287,16 @@ class _MainPageState extends State<MainPage> with WindowListener {
     // _currentEntryController.clear(); // Decide if you want to clear it immediately
   }
 
+  // Helper to set initial window config like aspect ratio
+  Future<void> _setWindowConfig() async {
+    // Wait a moment to ensure window manager is fully ready after init
+    // Might not be strictly necessary but can prevent race conditions
+    // await Future.delayed(const Duration(milliseconds: 100));
+    await windowManager.setAspectRatio(16 / 9);
+    // Optionally set min/max size if desired
+    // await windowManager.setMinimumSize(const Size(800, 450));
+  }
+
   // --- UI Build --- //
   @override
   Widget build(BuildContext context) {