feat:增加主题颜色和暗黑模式

lib/widgets/flisp_widget.dart

@@ -11,7 +11,7 @@ Widget buildStatsCard(List<Flisp> flisps) {
   int workCount = flisps.where((flisp) => flisp.tag == FlispTag.work).length;
   int studyCount = flisps.where((flisp) => flisp.tag == FlispTag.study).length;
 
-  return buildCard(
+  return BuildCard(
     child: Row(
       mainAxisAlignment: MainAxisAlignment.spaceAround,
       children: [
@@ -42,6 +42,7 @@ Widget _buildStatItem(String label, int count, Color color) {
 }
 
 Widget buildTabs({
+  required BuildContext context,
   required FlispTab currentTab,
   required ValueChanged<FlispTab> onTabChanged,
 }) {
@@ -53,7 +54,7 @@ Widget buildTabs({
       initialLabelIndex: FlispTab.values.indexOf(currentTab),
       totalSwitches: FlispTab.values.length,
       labels: FlispTab.values.map((e) => e.label).toList(),
-      activeBgColor: [Colors.orange.shade600],
+      activeBgColor: [Theme.of(context).colorScheme.primary],
       activeFgColor: Colors.white,
       inactiveBgColor: Colors.grey.shade200,
       inactiveFgColor: Colors.grey.shade700,
@@ -89,11 +90,15 @@ Widget buildFlispList({
   );
 }
 
-Widget _buildFlispContent(Flisp flisp) {
+Widget _buildFlispContent(BuildContext context, Flisp flisp) {
   return RichText(
     text: TextSpan(
       text: flisp.content,
-      style: const TextStyle(color: Colors.black87, fontSize: 16),
+      style: TextStyle(
+        fontFamily: 'CustomFont',
+        color: Theme.of(context).colorScheme.onSurface,
+        fontSize: 16,
+      ),
     ),
   );
 }
@@ -281,15 +286,13 @@ Widget _buildFlispItem({
     onDismissed: (direction) {
       onDelete(flisp);
     },
-    child: Container(
-      decoration: buildBoxDecoration(),
-      padding: EdgeInsets.all(16),
+    child: BuildCard(
       child: InkWell(
         onTap: () => onEdit(flisp),
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            _buildFlispContent(flisp),
+            _buildFlispContent(context, flisp),
             const SizedBox(height: 8),
             if (hasImage) buildFlispImage(flisp: flisp, showDelete: false),
             const SizedBox(height: 4),
@@ -337,16 +340,19 @@ Widget _buildDismissBackground() {
 }
 
 // 空状态
-Widget buildEmptyState() {
+Widget buildEmptyState(BuildContext context) {
+  final colors = Theme.of(context).colorScheme;
+
   return Center(
     child: Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        Icon(Icons.flash_on, size: 80, color: Colors.orange.shade600),
+        Icon(Icons.flash_on, size: 80, color: colors.primary),
+        const SizedBox(height: 16),
         Text(
-          '📝 还没有闪灵\n点击➕号添加第一个灵感吧～',
+          '📝 还没有该类别闪灵\n点击➕号添加第一个灵感吧～',
           textAlign: TextAlign.center,
-          style: TextStyle(color: Colors.orange.shade600),
+          style: TextStyle(color: colors.onSurface, fontSize: 16),
         ),
       ],
     ),