feat(theme): 校正 K26 预览色板与导航

lib/core/theme/app_colors.dart

@@ -38,25 +38,34 @@ abstract final class AppColors {
   static const ink = Color(0xFF0B0C10);
 
   /// Bottom navigation background (rendered at 95% with blur).
-  static const bar = Color(0xFF0B0C10);
+  static const bar = Color(0xFF0D0D11);
 
   /// Cards lifted off [ink].
-  static const card = Color(0xFF16181F);
+  static const card = Color(0xFF1B1C21);
+
+  /// Alternate card surface from the mobile preview.
+  static const cardAlt = Color(0xFF1C1D21);
 
   /// Floating surfaces, inputs, and nested rows.
-  static const raised = Color(0xFF1D1E28);
+  static const raised = Color(0xFF1C1D21);
+  static const quick = Color(0xFF202126);
+  static const input = Color(0xFF25252A);
+  static const goldCard = Color(0xFF201B1E);
 
   /// Body text on dark surfaces.
-  static const cream = Color(0xFFE3E2E8);
+  static const cream = Color(0xFFE6E1E3);
 
   /// Titles and high-emphasis text.
   static const onSurface = Color(0xFFFFFFFF);
 
   /// Secondary text.
-  static const muted = Color(0xFFA1A1AA);
+  static const muted = Color(0xFFD2CDD0);
 
   /// Weak hints and timestamps.
-  static const subtle = Color(0xFF71717A);
+  static const subtle = Color(0xFF9A96A3);
+
+  /// Soft orange used for continue labels and secondary times.
+  static const accent = Color(0xFFFFA490);
 
   /// 8% white border used by cards and inputs.
   static const border = Color(0x14FFFFFF);
@@ -65,7 +74,7 @@ abstract final class AppColors {
   static const glassBorder = Color(0x24FFFFFF);
 
   static const outlineDark = Color(0xFF2A2C36);
-  static const outlineVariantDark = Color(0xFF242630);
+  static const outlineVariantDark = Color(0xFF242329);
   static const outlineLight = Color(0xFF8E8E93);
   static const outlineVariantLight = Color(0xFFE4E4E7);
 }

lib/core/theme/app_dimens.dart

@@ -9,15 +9,17 @@ abstract final class AppDimens {
   static const double spaceXl = 24;
 
   static const double pageHorizontal = 16;
-  static const double cardRadius = 16;
+  static const double cardRadius = 12;
   static const double authCardRadius = 20;
   static const double cardPadding = 16;
-  static const double innerRadius = 12;
+  static const double innerRadius = 10;
   static const double innerPadding = 12;
   static const double pillRadius = 20;
-  static const double glassSmallRadius = 16;
-  static const double glassRadius = 24;
-  static const double glassCardRadius = 26;
+  static const double glassSmallRadius = 12;
+  static const double glassRadius = 14;
+  static const double glassCardRadius = 14;
+  static const double buttonRadius = 9;
+  static const double coverRadius = 10;
 
   static const double caption = 12;
   static const double emptyStateSubtitle = 12.5;
@@ -27,17 +29,25 @@ abstract final class AppDimens {
   static const double sectionTitle = 16;
   static const double pageTitle = 20;
   static const double detailHeadline = 24;
-  static const double navLabel = 11;
+  static const double detailHeadlineSmall = 18;
+  static const double previewCardTitle = 13;
+  static const double previewSectionTitle = 14;
+  static const double chipFont = 10;
+  static const double navLabel = 9;
 
   static const double buttonHeight = 48;
   static const double primaryButtonHeight = 52;
+  static const double buttonCompact = 32;
+  static const double buttonSmall = 34;
+  static const double buttonMedium = 40;
+  static const double buttonLarge = 44;
   static const double tapTarget = 44;
 
-  static const double navHeight = 64;
-  static const double navIcon = 22;
-  static const double progressHeight = 4;
-  static const double progressRadius = 4;
-  static const double progressLineHeight = 1.5;
+  static const double navHeight = 54;
+  static const double navIcon = 17;
+  static const double progressHeight = 3;
+  static const double progressRadius = 2;
+  static const double progressLineHeight = 3;
 
   static const double searchHeight = 44;
   static const double navDot = 3;

lib/core/widgets/app_bottom_nav.dart

@@ -16,7 +16,6 @@ class AppBottomNavItem {
     required this.label,
     required this.onTap,
     this.selected = false,
-    this.indicatorKey,
   });
 
   final Key tabKey;
@@ -25,7 +24,6 @@ class AppBottomNavItem {
   final String label;
   final VoidCallback onTap;
   final bool selected;
-  final Key? indicatorKey;
 }
 
 /// Shared 3-tab navigation used by all root tabs and the player fallback.
@@ -52,7 +50,9 @@ class AppBottomNav extends StatelessWidget {
           height: AppDimens.navHeight,
           decoration: BoxDecoration(
             color: backgroundColor.withValues(alpha: 0.95),
-            border: const Border(top: BorderSide(color: AppColors.border)),
+            border: const Border(
+              top: BorderSide(color: AppColors.outlineVariantDark),
+            ),
           ),
           child: Row(
             children: [for (final item in items) _NavDestination(item: item)],
@@ -94,7 +94,7 @@ class _NavDestination extends StatelessWidget {
                       : Colors.white.withValues(alpha: 0.45),
                 ),
               ),
-              const SizedBox(height: 3),
+              const SizedBox(height: 2),
               Text(
                 item.label,
                 maxLines: 1,
@@ -108,18 +108,6 @@ class _NavDestination extends StatelessWidget {
                   letterSpacing: 0,
                 ),
               ),
-              const SizedBox(height: 3),
-              AnimatedContainer(
-                key: item.indicatorKey,
-                duration: const Duration(milliseconds: 160),
-                curve: Curves.easeOut,
-                width: AppDimens.navDot,
-                height: AppDimens.navDot,
-                decoration: BoxDecoration(
-                  color: item.selected ? AppColors.blue : Colors.transparent,
-                  shape: BoxShape.circle,
-                ),
-              ),
             ],
           ),
         ),

lib/core/widgets/glass_panel.dart

@@ -13,7 +13,7 @@ class GlassPanel extends StatelessWidget {
     super.key,
     required this.child,
     this.radius = AppDimens.glassRadius,
-    this.blur = AppDimens.glassBlur,
+    this.blur = 10,
     this.padding,
     this.borderColor = AppColors.glassBorder,
     this.gradient,