refactor(divination): 优化占卜界面和组件

- 更新占卜处理和结果页面
- 优化占卜共享组件

apps/lib/features/divination/presentation/screens/divination_processing_screen.dart

@@ -149,7 +149,7 @@ class _DivinationProcessingScreenState extends State<DivinationProcessingScreen>
     if (data == null) {
       return;
     }
-    Navigator.of(context).pushReplacement(
+    Navigator.of(context).pushAndRemoveUntil(
       MaterialPageRoute<void>(
         builder: (_) => DivinationResultScreen(
           data: data,
@@ -157,6 +157,7 @@ class _DivinationProcessingScreenState extends State<DivinationProcessingScreen>
           enableIntroTransition: true,
         ),
       ),
+      (route) => route.isFirst,
     );
   }
 

apps/lib/features/divination/presentation/screens/divination_result_screen.dart

@@ -170,12 +170,7 @@ class _DivinationResultScreenState extends State<DivinationResultScreen> {
     final l10n = AppLocalizations.of(context)!;
     return PopScope<void>(
       canPop: true,
-      onPopInvokedWithResult: (didPop, result) {
-        if (didPop) {
-          return;
-        }
-        _backToHome();
-      },
+      onPopInvokedWithResult: (didPop, result) {},
       child: Scaffold(
         backgroundColor: colors.surface,
         appBar: AppBar(

apps/lib/shared/widgets/divination/divination_shared_widgets.dart

@@ -96,6 +96,8 @@ class _DivinationGuideDialogState extends State<DivinationGuideDialog> {
   final PageController _pageController = PageController();
   int _currentPage = 0;
 
+  bool get _isLastPage => _currentPage == widget.guideImages.length - 1;
+
   @override
   void dispose() {
     _pageController.dispose();
@@ -105,6 +107,8 @@ class _DivinationGuideDialogState extends State<DivinationGuideDialog> {
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context)!;
+    final colors = Theme.of(context).colorScheme;
+    final swipeHint = _guideSwipeHint(Localizations.localeOf(context));
     return Dialog(
       child: SizedBox(
         width: 360,
@@ -139,6 +143,10 @@ class _DivinationGuideDialogState extends State<DivinationGuideDialog> {
               child: Text(
                 widget.instructions[_currentPage],
                 textAlign: TextAlign.center,
+                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                  color: colors.onSurfaceVariant,
+                  height: 1.45,
+                ),
               ),
             ),
             Padding(
@@ -151,8 +159,14 @@ class _DivinationGuideDialogState extends State<DivinationGuideDialog> {
               child: SizedBox(
                 width: double.infinity,
                 child: FilledButton(
-                  onPressed: () => Navigator.of(context).pop(),
-                  child: Text(l10n.divinationIAcknowledge),
+                  onPressed: _isLastPage
+                      ? () => Navigator.of(context).pop()
+                      : null,
+                  child: Text(
+                    _isLastPage
+                        ? l10n.divinationIAcknowledge
+                        : '${_currentPage + 1} / ${widget.guideImages.length} · $swipeHint',
+                  ),
                 ),
               ),
             ),
@@ -161,4 +175,11 @@ class _DivinationGuideDialogState extends State<DivinationGuideDialog> {
       ),
     );
   }
+
+  String _guideSwipeHint(Locale locale) {
+    if (locale.languageCode == 'en') {
+      return 'Swipe left for the next step';
+    }
+    return '左滑查看下一步';
+  }
 }