feat(app): bug fixed

 import 'package:flutter/material.dart';
 import 'package:doublefeel_flutter/l10n/l10n_extensions.dart';
 
+import 'sleep_report_text_styles.dart';
+
 void showSleepQualityDialog(BuildContext context) {
   showModalBottomSheet<void>(
     context: context,
@@ -15,7 +17,6 @@ class SleepQualityDialog extends StatelessWidget {
   const SleepQualityDialog({super.key});
 
   static const _bg = Color(0xFFF5F2FF);
-  static const _h1 = Color(0xFF0F0F11);
   static const _h2 = Color(0xFF78787D);
   static const _purple = Color(0xFFA084EF);
   static const _orange = Color(0xFFFF9A6E);
@@ -64,12 +65,9 @@ class SleepQualityDialog extends StatelessWidget {
                     child: Center(
                       child: Text(
                         context.l10n.sleepQualityTitle,
-                        style: const TextStyle(
-                          color: _h1,
-                          fontSize: 16,
-                          fontWeight: FontWeight.w600,
-                          height: 1.2,
-                        ),
+                        textAlign: TextAlign.center,
+                        strutStyle: SleepReportTextStyles.titleStrutStyle,
+                        style: SleepReportTextStyles.titleTextStyle,
                       ),
                     ),
                   ),
@@ -108,7 +106,7 @@ class SleepQualityDialog extends StatelessWidget {
               height: 5,
               margin: const EdgeInsets.only(bottom: 8),
               decoration: BoxDecoration(
-                color: _h1,
+                color: SleepReportTextStyles.titleColor,
                 borderRadius: BorderRadius.circular(100),
               ),
             ),

+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+abstract final class SleepReportTextStyles {
+  static const titleColor = Color(0xFF0F0F11);
+
+  static bool get _usesAppleTextRenderer =>
+      defaultTargetPlatform == TargetPlatform.iOS ||
+      defaultTargetPlatform == TargetPlatform.macOS;
+
+  static TextStyle get titleTextStyle {
+    const baseStyle = TextStyle(
+      color: titleColor,
+      fontSize: 16,
+      fontWeight: FontWeight.w600,
+      height: 1.2,
+    );
+    if (!_usesAppleTextRenderer) return baseStyle;
+    return baseStyle.copyWith(
+      fontFamily: 'PingFang SC',
+      fontFamilyFallback: const ['Heiti SC', 'Arial Unicode MS'],
+    );
+  }
+
+  static StrutStyle get titleStrutStyle {
+    if (!_usesAppleTextRenderer) {
+      return const StrutStyle(
+        fontSize: 16,
+        height: 1.2,
+      );
+    }
+    return const StrutStyle(
+      fontSize: 16,
+      fontFamily: 'PingFang SC',
+      fontFamilyFallback: ['Heiti SC', 'Arial Unicode MS'],
+      height: 1.2,
+    );
+  }
+}

 import 'package:doublefeel_flutter/r.dart';
 import 'package:fl_chart/fl_chart.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:doublefeel_flutter/l10n/l10n_extensions.dart';
 
 import '../../report_common/widgets/health_report_subject_scope.dart';
 import '../../report_common/utils/report_localization.dart';
 import '../models/sleep_report_models.dart';
+import 'sleep_report_text_styles.dart';
 
 class SleepWeekReportView extends StatelessWidget {
   const SleepWeekReportView({
@@ -22,43 +22,14 @@ class SleepWeekReportView extends StatelessWidget {
   static const qualityAverageLine = Color(0xFFC9D6FF);
   static const green = Color(0xFF3BD49D);
   static const red = Color(0xFFFF5279);
-  static const h1 = Color(0xFF0F0F11);
+  static const h1 = SleepReportTextStyles.titleColor;
   static const h2 = Color(0xFF78787D);
   static const h3 = Color(0xFFB0B0B6);
   static const grid = Color(0xFFF3F3F3);
 
-  static bool get _usesAppleTextRenderer =>
-      defaultTargetPlatform == TargetPlatform.iOS ||
-      defaultTargetPlatform == TargetPlatform.macOS;
+  static TextStyle get titleTextStyle => SleepReportTextStyles.titleTextStyle;
 
-  static TextStyle get titleTextStyle {
-    const baseStyle = TextStyle(
-      color: h1,
-      fontSize: 16,
-      fontWeight: FontWeight.w600,
-      height: 1.2,
-    );
-    if (!_usesAppleTextRenderer) return baseStyle;
-    return baseStyle.copyWith(
-      fontFamily: 'PingFang SC',
-      fontFamilyFallback: const ['Heiti SC', 'Arial Unicode MS'],
-    );
-  }
-
-  static StrutStyle get titleStrutStyle {
-    if (!_usesAppleTextRenderer) {
-      return const StrutStyle(
-        fontSize: 16,
-        height: 1.2,
-      );
-    }
-    return const StrutStyle(
-      fontSize: 16,
-      fontFamily: 'PingFang SC',
-      fontFamilyFallback: ['Heiti SC', 'Arial Unicode MS'],
-      height: 1.2,
-    );
-  }
+  static StrutStyle get titleStrutStyle => SleepReportTextStyles.titleStrutStyle;
 
   static int minutesFromEvening(DateTime time) {
     final minutes = time.hour * 60 + time.minute;