屏幕适配

lib/shared/widgets/app_card.dart

@@ -1,17 +1,18 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:recording_tool/app/theme/app_theme.dart';
 
 class AppCard extends StatelessWidget {
   const AppCard({
     super.key,
     required this.child,
-    this.padding = const EdgeInsets.all(AppSpacing.lg),
+    this.padding,
     this.margin,
     this.onTap,
   });
 
   final Widget child;
-  final EdgeInsetsGeometry padding;
+  final EdgeInsetsGeometry? padding;
   final EdgeInsetsGeometry? margin;
   final VoidCallback? onTap;
 
@@ -19,10 +20,10 @@ class AppCard extends StatelessWidget {
   Widget build(BuildContext context) {
     final card = Container(
       margin: margin,
-      padding: padding,
+      padding: padding ?? EdgeInsets.all(AppSpacing.lg),
       decoration: BoxDecoration(
         color: Theme.of(context).colorScheme.surface,
-        borderRadius: BorderRadius.circular(8),
+        borderRadius: BorderRadius.circular(8.r),
         border: Border.all(color: AppTheme.border),
       ),
       child: child,
@@ -32,7 +33,7 @@ class AppCard extends StatelessWidget {
 
     return InkWell(
       onTap: onTap,
-      borderRadius: BorderRadius.circular(8),
+      borderRadius: BorderRadius.circular(8.r),
       child: card,
     );
   }