feat(ui): 更新品牌启动页与选集交互

lib/pages/discover/discover_view.dart

@@ -120,7 +120,7 @@ class _DiscoverPageState extends State<DiscoverPage> {
         data: AppTheme.dark(),
         child: widget.embedded
             ? content
-            : Scaffold(backgroundColor: const Color(0xFF0B0C10), body: content),
+            : Scaffold(backgroundColor: AppColors.ink, body: content),
       ),
     );
   }
@@ -159,7 +159,6 @@ class _DiscoverPageState extends State<DiscoverPage> {
           onAction: widget.onAction,
         ),
       ),
-      const SliverToBoxAdapter(child: SizedBox(height: 24)),
     ],
   );
 
@@ -176,9 +175,9 @@ class _DiscoverPageState extends State<DiscoverPage> {
               maxLines: 1,
               overflow: TextOverflow.ellipsis,
               style: const TextStyle(
-                color: Colors.white,
+                color: AppColors.cream,
                 fontSize: 20,
-                fontWeight: FontWeight.w700,
+                fontWeight: FontWeight.w800,
                 height: 1.1,
               ),
             ),
@@ -262,7 +261,7 @@ class _DiscoverPageState extends State<DiscoverPage> {
     ];
     return SizedBox(
       key: const Key('home-category-chips'),
-      height: 32,
+      height: 36,
       child: ListView.separated(
         scrollDirection: Axis.horizontal,
         itemCount: choices.length,
@@ -275,20 +274,18 @@ class _DiscoverPageState extends State<DiscoverPage> {
             child: AnimatedContainer(
               duration: const Duration(milliseconds: 180),
               alignment: Alignment.center,
-              padding: const EdgeInsets.symmetric(horizontal: 12),
+              padding: const EdgeInsets.symmetric(horizontal: 14),
               decoration: BoxDecoration(
-                color: selected
-                    ? AppColors.bluePressed
-                    : const Color(0xFF1C1E24),
-                borderRadius: BorderRadius.circular(16),
+                color: selected ? AppColors.blue : AppColors.raised,
+                borderRadius: BorderRadius.circular(18),
               ),
               child: Text(
                 choice.label,
                 maxLines: 1,
                 style: TextStyle(
-                  color: selected ? Colors.white : AppColors.muted,
+                  color: selected ? AppColors.onPrimary : AppColors.cream,
                   fontSize: 13,
-                  fontWeight: selected ? FontWeight.w600 : FontWeight.w500,
+                  fontWeight: selected ? FontWeight.w700 : FontWeight.w500,
                   height: 1.1,
                 ),
               ),
@@ -302,8 +299,8 @@ class _DiscoverPageState extends State<DiscoverPage> {
   Widget _bottomNav(AppLocalizations l10n) => Container(
     height: 63,
     decoration: const BoxDecoration(
-      color: Color(0xFF0D0D11),
-      border: Border(top: BorderSide(color: Color(0xFF242329))),
+      color: AppColors.bar,
+      border: Border(top: BorderSide(color: AppColors.outlineVariantDark)),
     ),
     child: Row(
       mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -363,12 +360,12 @@ class _DiscoverNavItem extends StatelessWidget {
           Icon(
             icon,
             size: 21,
-            color: selected ? _accent : const Color(0xFFCAC4C7),
+            color: selected ? AppColors.blueSoft : AppColors.muted,
           ),
           Text(
             label,
             style: TextStyle(
-              color: selected ? _accent : const Color(0xFFCAC4C7),
+              color: selected ? AppColors.blueSoft : AppColors.muted,
               fontSize: 10,
               fontWeight: FontWeight.w700,
             ),
@@ -379,8 +376,7 @@ class _DiscoverNavItem extends StatelessWidget {
   );
 }
 
-const _accent = AppColors.blueSoft;
-const _coin = Color(0xFFF5C451);
+const _coin = AppColors.gold;
 
 class _BrandMark extends StatelessWidget {
   const _BrandMark();
@@ -418,8 +414,10 @@ class _HeaderPill extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Material(
-      color: const Color(0xFF1C1E24),
-      shape: const StadiumBorder(side: BorderSide(color: Color(0x66F5C451))),
+      color: AppColors.raised,
+      shape: StadiumBorder(
+        side: BorderSide(color: AppColors.gold.withValues(alpha: 0.45)),
+      ),
       child: InkWell(
         customBorder: const StadiumBorder(),
         onTap: onTap,
@@ -434,9 +432,9 @@ class _HeaderPill extends StatelessWidget {
                 label,
                 maxLines: 1,
                 style: const TextStyle(
-                  color: Colors.white,
+                  color: AppColors.cream,
                   fontSize: 12,
-                  fontWeight: FontWeight.w600,
+                  fontWeight: FontWeight.w700,
                   height: 1.1,
                 ),
               ),