feat:增加主题颜色和暗黑模式

lib/widgets/awesome_dialog.dart

@@ -25,7 +25,7 @@ void showAwesomeDialog({
       onPressed: onOk,
       style: ElevatedButton.styleFrom(
         elevation: 0,
-        backgroundColor: Colors.orange,
+        backgroundColor: Theme.of(context).primaryColor,
         foregroundColor: Colors.white,
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(8),
@@ -61,7 +61,7 @@ void showErrorDialog(BuildContext context, String message) {
     animType: AnimType.scale,
     title: message,
     btnOkText: "好的",
-    btnOkColor: Colors.green,
+    btnOkColor: Colors.red,
     btnOkOnPress: () {},
     autoHide: Duration(seconds: 2),
   ).show();

lib/widgets/common.dart

@@ -8,21 +8,25 @@ BoxDecoration buildBoxDecoration() {
   );
 }
 
-Container buildBody({Widget? child}) {
-  return Container(
-    width: double.infinity,
-    color: Colors.grey[50],
-    padding: EdgeInsets.all(8),
-    child: child,
-  );
-}
+class BuildCard extends StatelessWidget {
+  final Widget? child;
 
-Container buildCard({Widget? child}) {
-  return Container(
-    decoration: buildBoxDecoration(),
-    padding: EdgeInsets.all(10),
-    child: child,
-  );
+  const BuildCard({super.key, this.child});
+
+  @override
+  Widget build(BuildContext context) {
+    final colors = Theme.of(context).colorScheme;
+
+    return Container(
+      decoration: BoxDecoration(
+        color: colors.surface,
+        borderRadius: BorderRadius.circular(12),
+        border: Border.all(color: colors.outline.withAlpha(50), width: 1),
+      ),
+      padding: const EdgeInsets.all(16),
+      child: child,
+    );
+  }
 }
 
 void buildModalBottom({

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),
         ),
       ],
     ),

lib/widgets/todo_form.dart

@@ -38,7 +38,7 @@ class _TodoFormState extends State<TodoForm> {
         children: [
           Icon(
             widget.isEditing ? Icons.edit_note : Icons.add_task,
-            color: Colors.orange,
+            color: Theme.of(context).primaryColor,
             size: 24,
           ),
           SizedBox(width: 8),
@@ -47,7 +47,7 @@ class _TodoFormState extends State<TodoForm> {
             style: TextStyle(
               fontSize: 20,
               fontWeight: FontWeight.bold,
-              color: Colors.orange,
+              color: Theme.of(context).primaryColor,
             ),
           ),
         ],

lib/widgets/todo_widget.dart

@@ -13,7 +13,7 @@ Widget buildStatsCard(List<Todo> todos) {
 
   int completedCount = todos.where((todo) => todo.isCompleted).length;
 
-  return buildCard(
+  return BuildCard(
     child: Row(
       mainAxisAlignment: MainAxisAlignment.spaceAround,
       children: [
@@ -44,6 +44,7 @@ Widget _buildStatItem(String label, int count, Color color) {
 
 // Tab页
 Widget buildTabs({
+  required BuildContext context,
   required TodoTab currentTab,
   required ValueChanged<TodoTab> onTabChanged,
 }) {
@@ -55,7 +56,7 @@ Widget buildTabs({
       initialLabelIndex: TodoTab.values.indexOf(currentTab),
       totalSwitches: TodoTab.values.length,
       labels: TodoTab.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,
@@ -94,7 +95,7 @@ Widget _buildTodoItem({
   required ValueChanged<Todo> onToggle,
   required ValueChanged<Todo> onEdit,
 }) {
-  return buildCard(
+  return BuildCard(
     child: ListTile(
       contentPadding: EdgeInsets.symmetric(horizontal: 8, vertical: 0),
       leading: SizedBox(
@@ -267,7 +268,7 @@ Widget _buildPriorityBadge(TodoPriority priority) {
 }
 
 // 空状态
-Widget buildEmptyState(TodoTab tab) {
+Widget buildEmptyState(BuildContext context, TodoTab tab) {
   final messages = {
     TodoTab.all: '📝 还没有待办事项\n点击➕号添加第一个任务吧～',
     TodoTab.active: '🎯 没有待完成的任务\n享受轻松时光吧！✨',
@@ -275,15 +276,18 @@ Widget buildEmptyState(TodoTab tab) {
     TodoTab.today: '📅 今天没有安排任务\n好好放松一下吧～😊',
   };
 
+  final colors = Theme.of(context).colorScheme;
+
   return Center(
     child: Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        Icon(Icons.checklist, size: 80, color: Colors.orange.shade600),
+        Icon(Icons.checklist, size: 80, color: colors.primary),
+        const SizedBox(height: 16),
         Text(
           messages[tab] ?? '暂无数据',
           textAlign: TextAlign.center,
-          style: TextStyle(color: Colors.orange.shade600),
+          style: TextStyle(color: colors.onSurface, fontSize: 16),
         ),
       ],
     ),