style(ui): 统一页面字号间距与状态样式

lib/pages/notices/notices_page.dart

@@ -11,6 +11,7 @@ import '../../core/data/services/notices_controller.dart';
 import '../../core/formatting/error_text.dart';
 import '../../core/formatting/localized_date_time.dart';
 import '../../core/theme/app_colors.dart';
+import '../../core/theme/app_dimens.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/empty_state.dart';
 import '../../l10n/app_localizations.dart';
@@ -52,9 +53,12 @@ class _NoticesPageState extends State<NoticesPage> {
           foregroundColor: AppColors.onPrimary,
           title: Text(l10n.notices),
         ),
-        body: ListenableBuilder(
-          listenable: _controller,
-          builder: (context, _) => _body(l10n),
+        body: SafeArea(
+          top: false,
+          child: ListenableBuilder(
+            listenable: _controller,
+            builder: (context, _) => _body(l10n),
+          ),
         ),
       ),
     );
@@ -214,12 +218,12 @@ class _NoticeTile extends StatelessWidget {
     return Material(
       key: ValueKey('notice-item-${notice.id}'),
       color: AppColors.card,
-      borderRadius: BorderRadius.circular(12),
+      borderRadius: BorderRadius.circular(AppDimens.innerRadius),
       clipBehavior: Clip.antiAlias,
       child: InkWell(
         onTap: onTap,
         child: Padding(
-          padding: const EdgeInsets.all(14),
+          padding: const EdgeInsets.all(AppDimens.innerPadding),
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
@@ -233,7 +237,9 @@ class _NoticeTile extends StatelessWidget {
                       ),
                       decoration: BoxDecoration(
                         color: AppColors.bluePressed,
-                        borderRadius: BorderRadius.circular(10),
+                        borderRadius: BorderRadius.circular(
+                          AppDimens.pillRadius,
+                        ),
                       ),
                       child: Text(
                         type,
@@ -241,7 +247,7 @@ class _NoticeTile extends StatelessWidget {
                         overflow: TextOverflow.ellipsis,
                         style: const TextStyle(
                           color: AppColors.onPrimary,
-                          fontSize: 11,
+                          fontSize: AppDimens.caption,
                         ),
                       ),
                     ),
@@ -257,7 +263,7 @@ class _NoticeTile extends StatelessWidget {
                           textAlign: TextAlign.right,
                           style: const TextStyle(
                             color: AppColors.muted,
-                            fontSize: 11,
+                            fontSize: AppDimens.caption,
                           ),
                         ),
                       ),
@@ -271,7 +277,7 @@ class _NoticeTile extends StatelessWidget {
                 overflow: TextOverflow.ellipsis,
                 style: const TextStyle(
                   color: AppColors.onPrimary,
-                  fontSize: 16,
+                  fontSize: AppDimens.sectionTitle,
                   fontWeight: FontWeight.w700,
                 ),
               ),
@@ -283,7 +289,7 @@ class _NoticeTile extends StatelessWidget {
                   overflow: TextOverflow.ellipsis,
                   style: const TextStyle(
                     color: AppColors.muted,
-                    fontSize: 13,
+                    fontSize: AppDimens.body,
                     height: 1.35,
                   ),
                 ),