小调整，去掉部分冗余无用句

android/app/proguard-rules.pro

@@ -0,0 +1,79 @@
+# ============ Flutter 核心 ============
+-keep class io.flutter.** { *; }
+-keep class io.flutter.plugins.** { *; }
+-keep class io.flutter.plugin.** { *; }
+-keep class io.flutter.util.** { *; }
+-keep class io.flutter.view.** { *; }
+-keep class io.flutter.embedding.** { *; }
+
+# 保留 Flutter 的 JNI 调用类
+-keep class io.flutter.embedding.engine.FlutterJNI { *; }
+-dontwarn io.flutter.embedding.**
+
+# ============ Kotlin ============
+-keep class kotlin.** { *; }
+-keep class kotlin.Metadata { *; }
+-dontwarn kotlin.**
+-keepclassmembers class **$WhenMappings {
+    <fields>;
+}
+-keepclassmembers class kotlin.Metadata {
+    public <methods>;
+}
+
+# ============ sqflite / SQLite ============
+-keep class com.tekartik.sqflite.** { *; }
+-dontwarn com.tekartik.sqflite.**
+
+# ============ shared_preferences ============
+-keep class io.flutter.plugins.sharedpreferences.** { *; }
+
+# ============ path_provider ============
+-keep class io.flutter.plugins.pathprovider.** { *; }
+
+# ============ permission_handler ============
+-keep class com.baseflow.permissionhandler.** { *; }
+
+# ============ url_launcher ============
+-keep class io.flutter.plugins.urllauncher.** { *; }
+
+# ============ device_info_plus ============
+-keep class dev.fluttercommunity.plus.device_info.** { *; }
+
+# ============ 你的原生通道（重要！） ============
+# 你的 MethodChannel / EventChannel 相关类需要保留
+-keep class com.lxh.battery_health.** { *; }
+
+# ============ AndroidX 常见 ============
+-keep class androidx.lifecycle.** { *; }
+-dontwarn androidx.lifecycle.**
+
+# ============ 保留 Parcelable / Serializable ============
+-keepclassmembers class * implements android.os.Parcelable {
+    public static final android.os.Parcelable$Creator *;
+}
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    private static final java.io.ObjectStreamField[] serialPersistentFields;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}
+
+# ============ 异常堆栈保留（方便排查 release 崩溃） ============
+-keepattributes SourceFile,LineNumberTable
+-renamesourcefileattribute SourceFile
+-keepattributes Signature
+-keepattributes *Annotation*
+-keepattributes Exceptions
+-keepattributes InnerClasses
+-keepattributes EnclosingMethod
+
+# ============ 移除日志（可选） ============
+# 如果你想在 release 里保留日志，注释掉下面这几行
+-assumenosideeffects class android.util.Log {
+    public static *** v(...);
+    public static *** d(...);
+    public static *** i(...);
+}

assets/CHANGELOG.md

@@ -1,3 +1,30 @@
+## 1.8.0
+
+### 新增
+- **夜间模式**：支持浅色 / 深色 / 跟随系统三种模式，可在右上角菜单切换
+- **主题系统重构**：统一颜色抽象，所有界面颜色由主题管理
+
+### 优化
+- 深色主题下潘通色系重新调色，保证对比度
+- AppBar 与内容区背景统一，消除浅色模式下的分界线
+
+----
+
+## [1.7.1] - 2026-09-16
+
+### 新增
+- **平均温度显示**：温度面板新增平均温度，与最高/最低温度同排展示（`↑ xx.x℃  ↓ xx.x℃  ⌀ xx.x℃`），更直观了解电池工作温度区间
+
+### 优化
+- **数据库升级至 v2**：新增 `temp_avg` 字段，历史数据自动迁移，每日平均温度随扫描自动入库
+- **构建工具链同步**：适配最新 Flutter SDK 的 Android 构建要求（AGP 9.0 / Kotlin 2.2 / Gradle 9.3）
+- **Release 打包加固**：补齐 ProGuard 混淆规则，release 版本构建更稳定
+
+### 修复
+- 修复 Release 版本因缺少混淆规则文件导致打包失败的问题
+
+----
+
 ## [1.7.0] - 2026-07-31
 
 ### ✨ 新增功能

lib/main.dart

@@ -1,11 +1,14 @@
 import 'package:flutter/material.dart';
 import 'pages/battery_health_page.dart';
 import 'services/saf_storage_service.dart';
+import 'theme/app_colors.dart';
+import 'theme/theme_service.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
   await SafStorageService().init();
+  await ThemeService.init(); // 🆕
 
   runApp(const MyApp());
 }
@@ -15,53 +18,70 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: '电池健康度',
-      theme: ThemeData(
-        // 🟢 中文用 HarmonyOS Sans SC
-        fontFamily: 'HarmonyOS_Sans_SC',
-        // 🟢 数字回退到 FlymeFont
-        fontFamilyFallback: const ['Flyme'],
-        // 🟢 统一文字颜色为黑色
-        colorScheme: ColorScheme.fromSeed(
-          seedColor: const Color(0xFFFFFFFF),
-        ).copyWith(onSurface: Colors.black),
-        textTheme: const TextTheme(
-          // 大标题/数字（健康度、容量等）
-          displayMedium: TextStyle(
-            fontFamily: 'HarmonyOS_Sans_SC',
-            fontFamilyFallback: ['Flyme'],
-            color: Colors.black,
-          ),
-          // 标题（如“容量百分比变动趋势”）
-          headlineMedium: TextStyle(
-            fontFamily: 'HarmonyOS_Sans_SC',
-            fontFamilyFallback: ['Flyme'],
-            color: Colors.black,
-          ),
-          // 正文（电压、温度、循环次数等）
-          bodyMedium: TextStyle(
-            fontFamily: 'HarmonyOS_Sans_SC',
-            fontFamilyFallback: ['Flyme'],
-            color: Colors.black,
-          ),
-          // 小字（日期、辅助信息）
-          bodySmall: TextStyle(
-            fontFamily: 'HarmonyOS_Sans_SC',
-            fontFamilyFallback: ['Flyme'],
-            color: Colors.black87,
-          ),
-          // 数字专用（大号数字，如健康度百分比）
-          displayLarge: TextStyle(
-            fontFamily: 'HarmonyOS_Sans_SC',
-            fontFamilyFallback: ['Flyme'],
-            color: Colors.black,
-          ),
+    return ValueListenableBuilder<ThemeMode>(
+      valueListenable: ThemeService.notifier,
+      builder: (context, mode, _) {
+        return MaterialApp(
+          title: '电池健康度',
+          themeMode: mode,
+          theme: _buildTheme(Brightness.light, kLightColors),
+          darkTheme: _buildTheme(Brightness.dark, kDarkColors),
+          home: const BatteryHealthPage(),
+          debugShowCheckedModeBanner: false,
+        );
+      },
+    );
+  }
+
+  ThemeData _buildTheme(Brightness brightness, AppColors colors) {
+    return ThemeData(
+      useMaterial3: true,
+      brightness: brightness,
+      scaffoldBackgroundColor: colors.background,
+      fontFamily: 'HarmonyOS_Sans_SC',
+      fontFamilyFallback: const ['Flyme'],
+      colorScheme: ColorScheme.fromSeed(
+        seedColor: colors.background,
+        brightness: brightness,
+      ),
+      extensions: [colors], // 🆕 注册 ThemeExtension
+
+      appBarTheme: AppBarTheme(
+        backgroundColor: colors.background, // ← 关键：和 Scaffold 一致
+        foregroundColor: colors.textPrimary,
+        // ← 关掉 M3 的滑动变色
+        elevation: 0,
+
+        iconTheme: IconThemeData(color: colors.textPrimary),
+      ),
+
+      textTheme: TextTheme(
+        displayMedium: TextStyle(
+          fontFamily: 'HarmonyOS_Sans_SC',
+          fontFamilyFallback: const ['Flyme'],
+          color: colors.textPrimary,
         ),
-        useMaterial3: true,
+        headlineMedium: TextStyle(
+          fontFamily: 'HarmonyOS_Sans_SC',
+          fontFamilyFallback: const ['Flyme'],
+          color: colors.textPrimary,
+        ),
+        bodyMedium: TextStyle(
+          fontFamily: 'HarmonyOS_Sans_SC',
+          fontFamilyFallback: const ['Flyme'],
+          color: colors.textPrimary,
+        ),
+        bodySmall: TextStyle(
+          fontFamily: 'HarmonyOS_Sans_SC',
+          fontFamilyFallback: const ['Flyme'],
+          color: colors.textSecondary,
+        ),
+        displayLarge: TextStyle(
+          fontFamily: 'HarmonyOS_Sans_SC',
+          fontFamilyFallback: const ['Flyme'],
+          color: colors.textPrimary,
+        ),
       ),
-      home: const BatteryHealthPage(),
-      debugShowCheckedModeBanner: false,
     );
   }
 }

lib/pages/about_page.dart

@@ -1,16 +1,16 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:url_launcher/url_launcher.dart';
+import '../theme/app_colors.dart';
 
 class AboutPage extends StatelessWidget {
   const AboutPage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    final isDark = Theme.of(context).brightness == Brightness.dark;
+    final c = context.colors;
 
     return Scaffold(
-      backgroundColor: Theme.of(context).scaffoldBackgroundColor,
       appBar: AppBar(
         title: const Text(
           '关于',
@@ -19,10 +19,8 @@ class AboutPage extends StatelessWidget {
             fontWeight: FontWeight.w500,
           ),
         ),
-        backgroundColor: Colors.transparent,
+        backgroundColor: c.background,
         elevation: 0,
-        foregroundColor: Theme.of(context).iconTheme.color,
-        iconTheme: IconThemeData(color: Theme.of(context).iconTheme.color),
       ),
       body: Center(
         child: Padding(
@@ -30,15 +28,12 @@ class AboutPage extends StatelessWidget {
           child: Column(
             mainAxisAlignment: MainAxisAlignment.center,
             children: [
-              // Logo
               Container(
                 width: 120,
                 height: 120,
                 decoration: BoxDecoration(
                   shape: BoxShape.circle,
-                  color: isDark
-                      ? Colors.grey.shade800
-                      : const Color(0xFFF0F4F8),
+                  color: c.surface,
                 ),
                 child: ClipOval(
                   child: Image.asset(
@@ -50,38 +45,39 @@ class AboutPage extends StatelessWidget {
                 ),
               ),
               const SizedBox(height: 24),
-              const Text(
+              Text(
                 'MEIZU Battery Healthy',
                 style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 24,
                   fontWeight: FontWeight.w600,
+                  color: c.textPrimary,
                 ),
               ),
               const SizedBox(height: 8),
               Text(
-                '版本 1.7.0',
+                '版本 1.8.0',
                 style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 14,
-                  color: Colors.grey.shade500,
+                  color: c.textTertiary,
                   fontWeight: FontWeight.w400,
                 ),
               ),
               const SizedBox(height: 16),
               Divider(
-                color: Colors.grey.shade300,
+                color: c.divider,
                 thickness: 0.5,
                 indent: 40,
                 endIndent: 40,
               ),
               const SizedBox(height: 16),
-              const Text(
+              Text(
                 '专机专配 · 仅针对魅族独家开发',
                 style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 14,
-                  color: Colors.grey,
+                  color: c.textSecondary,
                 ),
               ),
               const SizedBox(height: 8),
@@ -90,13 +86,12 @@ class AboutPage extends StatelessWidget {
                 style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 13,
-                  color: Colors.grey.shade400,
+                  color: c.textTertiary,
                 ),
               ),
               const SizedBox(height: 24),
-              // 源码链接按钮
               InkWell(
-                onTap: () => _launchUrl(context), // 注意这里传入了 context
+                onTap: () => _launchUrl(context),
                 borderRadius: BorderRadius.circular(12),
                 child: Container(
                   padding: const EdgeInsets.symmetric(
@@ -104,34 +99,24 @@ class AboutPage extends StatelessWidget {
                     vertical: 12,
                   ),
                   decoration: BoxDecoration(
-                    color: isDark
-                        ? Colors.grey.shade800
-                        : const Color(0xFFF0F4F8),
+                    color: c.surface,
                     borderRadius: BorderRadius.circular(12),
                   ),
                   child: Row(
                     mainAxisSize: MainAxisSize.min,
                     children: [
-                      Icon(
-                        Icons.code,
-                        size: 18,
-                        color: Theme.of(context).iconTheme.color,
-                      ),
+                      Icon(Icons.code, size: 18, color: c.textPrimary),
                       const SizedBox(width: 8),
                       Text(
                         '查看源码 / 反馈',
                         style: TextStyle(
                           fontFamily: 'HarmonyOS_Sans_SC',
                           fontSize: 14,
-                          color: Theme.of(context).iconTheme.color,
+                          color: c.textPrimary,
                         ),
                       ),
                       const SizedBox(width: 4),
-                      Icon(
-                        Icons.open_in_new,
-                        size: 14,
-                        color: Colors.grey.shade500,
-                      ),
+                      Icon(Icons.open_in_new, size: 14, color: c.textTertiary),
                     ],
                   ),
                 ),
@@ -142,7 +127,7 @@ class AboutPage extends StatelessWidget {
                 style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 12,
-                  color: Colors.grey.shade400,
+                  color: c.textTertiary,
                 ),
               ),
             ],
@@ -155,14 +140,11 @@ class AboutPage extends StatelessWidget {
   Future<void> _launchUrl(BuildContext context) async {
     const url = 'https://git.whitetop.xyz/lxh2875931338/MEIZU-Battery-Healthy';
     final uri = Uri.parse(url);
-
     try {
-      // ✅ 直接尝试打开，不再检查 canLaunchUrl
       await launchUrl(uri, mode: LaunchMode.externalApplication);
     } catch (e) {
-      // 如果打开失败，复制链接并提示
       debugPrint('打开链接失败: $e');
-      await Clipboard.setData(ClipboardData(text: url));
+      await Clipboard.setData(const ClipboardData(text: url));
       if (context.mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
           const SnackBar(

lib/pages/battery_health_page.dart

@@ -3,6 +3,8 @@ import 'dart:developer' as dev;
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:device_info_plus/device_info_plus.dart';
+import '../theme/theme_service.dart';
+import '../theme/app_colors.dart';
 
 // --- 本地导入 ---
 import '../models/device_matching.dart';
@@ -626,6 +628,56 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
     return ChargeUtils.getChargeTypeLabel(_isWireless, _chargeType);
   }
 
+  // 🆕 夜间模式切换弹窗  ← 加在这里
+  void _showThemePicker() {
+    showModalBottomSheet(
+      context: context,
+      builder: (ctx) {
+        final current = ThemeService.notifier.value;
+        return SafeArea(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              ListTile(
+                leading: const Icon(Icons.brightness_auto),
+                title: const Text('跟随系统'),
+                trailing: current == ThemeMode.system
+                    ? const Icon(Icons.check)
+                    : null,
+                onTap: () {
+                  ThemeService.setMode(ThemeMode.system);
+                  Navigator.pop(ctx);
+                },
+              ),
+              ListTile(
+                leading: const Icon(Icons.light_mode),
+                title: const Text('浅色'),
+                trailing: current == ThemeMode.light
+                    ? const Icon(Icons.check)
+                    : null,
+                onTap: () {
+                  ThemeService.setMode(ThemeMode.light);
+                  Navigator.pop(ctx);
+                },
+              ),
+              ListTile(
+                leading: const Icon(Icons.dark_mode),
+                title: const Text('深色'),
+                trailing: current == ThemeMode.dark
+                    ? const Icon(Icons.check)
+                    : null,
+                onTap: () {
+                  ThemeService.setMode(ThemeMode.dark);
+                  Navigator.pop(ctx);
+                },
+              ),
+            ],
+          ),
+        );
+      },
+    );
+  }
+
   // ---------- Build ----------
   @override
   Widget build(BuildContext context) {
@@ -645,25 +697,23 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
     );
 
     return AnnotatedRegion<SystemUiOverlayStyle>(
-      value: const SystemUiOverlayStyle(
-        statusBarColor: Color.fromRGBO(157, 212, 237, 0.1),
+      value: SystemUiOverlayStyle(
+        statusBarColor: context.colors.statusBarTint,
         statusBarIconBrightness: Brightness.dark,
         statusBarBrightness: Brightness.dark,
       ),
       child: Scaffold(
-        backgroundColor: Colors.white,
+        // backgroundColor: Colors.white,
         appBar: AppBar(
-          backgroundColor: Colors.white,
+          // backgroundColor: Colors.white,
           elevation: 0,
-          scrolledUnderElevation: 0,
-          shadowColor: Colors.transparent,
-          surfaceTintColor: Colors.transparent,
-          title: const Text(
+
+          title: Text(
             '电池健康度',
             style: TextStyle(
               fontSize: 24,
               fontWeight: FontWeight.w600,
-              color: Colors.black,
+              color: context.colors.textPrimary,
             ),
           ),
           actions: [
@@ -671,11 +721,11 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
               icon: const Icon(Icons.refresh),
               onPressed: readBatteryCapacity,
               tooltip: '刷新数据',
-              color: Colors.black,
+              color: context.colors.icon,
             ),
             PopupMenuButton<String>(
               icon: const Icon(Icons.more_vert),
-              color: Colors.white,
+              color: context.colors.surface,
               onSelected: (value) {
                 switch (value) {
                   case 'changelog':
@@ -695,7 +745,7 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
                     );
                     break;
                   case 'dark_mode':
-                    // 夜间模式切换逻辑（1.7.0 再实现）
+                    _showThemePicker();
                     break;
                 }
               },
@@ -705,11 +755,7 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
                   value: 'about', // 🟢 新增
                   child: Text('关于'),
                 ),
-                const PopupMenuItem(
-                  value: 'dark_mode',
-                  enabled: false, // 暂时灰显
-                  child: Text('夜间模式（开发中）'),
-                ),
+                const PopupMenuItem(value: 'dark_mode', child: Text('夜间模式')),
               ],
             ),
           ],
@@ -725,9 +771,9 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
                         children: [
                           Text(
                             _deviceModel,
-                            style: const TextStyle(
+                            style: TextStyle(
                               fontSize: 14,
-                              color: Colors.grey,
+                              color: context.colors.textTertiary,
                               fontWeight: FontWeight.w400,
                             ),
                           ),
@@ -804,19 +850,29 @@ class _BatteryHealthPageState extends State<BatteryHealthPage> {
                   ),
                 ],
               )
-            : const Center(
+            : Center(
                 child: Column(
                   mainAxisAlignment: MainAxisAlignment.center,
                   children: [
-                    Icon(Icons.battery_unknown, size: 64, color: Colors.grey),
-                    SizedBox(height: 16),
+                    Icon(
+                      Icons.battery_unknown,
+                      size: 64,
+                      color: context.colors.textTertiary,
+                    ),
+                    const SizedBox(height: 16),
                     Text(
                       '暂无数据',
-                      style: TextStyle(fontSize: 18, color: Colors.grey),
+                      style: TextStyle(
+                        fontSize: 18,
+                        color: context.colors.textTertiary,
+                      ),
                     ),
                     Text(
                       '点击右上角刷新尝试',
-                      style: TextStyle(fontSize: 14, color: Colors.grey),
+                      style: TextStyle(
+                        fontSize: 14,
+                        color: context.colors.textTertiary,
+                      ),
                     ),
                   ],
                 ),

lib/pages/changelog_page.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart'; // 🟢 添加这一行
+import 'package:flutter/services.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
+import '../theme/app_colors.dart';
 
 class ChangelogPage extends StatefulWidget {
   const ChangelogPage({super.key});
@@ -15,33 +16,27 @@ class _ChangelogPageState extends State<ChangelogPage>
   String _markdownContent = '';
   bool _isLoading = true;
   String? _error;
-  Widget? _cachedMarkdown;
 
   // ---------- 滚动 ----------
   final ScrollController _scrollController = ScrollController();
   double _scrollProgress = 0.0;
   bool _isScrolling = false;
 
-  // ---------- 呼吸动画（维持高刷感知） ----------
+  // ---------- 呼吸动画 ----------
   late AnimationController _breathController;
   late Animation<double> _breathAnimation;
 
   // ---------- 原生刷新率控制 ----------
-  // 🟢 改用 static final（不是 const）
   static final _frameRateChannel = MethodChannel(
     'com.lxh.battery_health/frame_rate',
   );
 
-  // ---------- 生命周期 ----------
   @override
   void initState() {
     super.initState();
     _loadChangelog();
-
-    // 进入页面时申请高刷（原生层）
     _frameRateChannel.invokeMethod('setHighRefreshRate');
 
-    // 呼吸动画：让进度条在滚动时轻微抖动，维持高刷感知
     _breathController = AnimationController(
       vsync: this,
       duration: const Duration(milliseconds: 500),
@@ -70,16 +65,13 @@ class _ChangelogPageState extends State<ChangelogPage>
 
   @override
   void dispose() {
-    // 离开页面时恢复默认刷新率
     _frameRateChannel.invokeMethod('clearRefreshRate');
-
     _scrollController.removeListener(_updateProgress);
     _scrollController.dispose();
     _breathController.dispose();
     super.dispose();
   }
 
-  // ---------- 方法 ----------
   void _updateProgress() {
     if (!_scrollController.hasClients) return;
     final maxScroll = _scrollController.position.maxScrollExtent;
@@ -96,7 +88,6 @@ class _ChangelogPageState extends State<ChangelogPage>
       setState(() {
         _markdownContent = content;
         _isLoading = false;
-        _cachedMarkdown = _buildMarkdown(content);
       });
     } catch (e) {
       setState(() {
@@ -106,78 +97,74 @@ class _ChangelogPageState extends State<ChangelogPage>
     }
   }
 
-  Widget _buildMarkdown(String content) {
+  Widget _buildMarkdown(BuildContext context, String content) {
+    final c = context.colors;
     return Markdown(
       data: content,
       shrinkWrap: true,
       physics: const NeverScrollableScrollPhysics(),
       styleSheet: MarkdownStyleSheet(
-        h1: const TextStyle(
+        h1: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 24,
           fontWeight: FontWeight.w700,
-          color: Colors.black,
+          color: c.textPrimary,
         ),
-        h2: const TextStyle(
+        h2: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 20,
           fontWeight: FontWeight.w600,
-          color: Colors.black87,
+          color: c.textPrimary,
         ),
-        h3: const TextStyle(
+        h3: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 18,
           fontWeight: FontWeight.w600,
-          color: Colors.black87,
+          color: c.textSecondary,
         ),
-        p: const TextStyle(
+        p: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 16,
-          color: Colors.black87,
+          color: c.textSecondary,
         ),
-        listBullet: const TextStyle(
+        listBullet: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 16,
-          color: Colors.black87,
+          color: c.textSecondary,
         ),
-        code: const TextStyle(
+        code: TextStyle(
           fontFamily: 'HarmonyOS_Sans_SC',
           fontSize: 14,
-          color: Colors.black87,
-          backgroundColor: Color(0xFFF5F5F5),
+          color: c.textSecondary,
+          backgroundColor: c.surface,
         ),
       ),
     );
   }
 
-  // ---------- Build ----------
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
     final breathOffset = _isScrolling ? _breathAnimation.value : 0.0;
     final displayProgress = (_scrollProgress + breathOffset).clamp(0.0, 1.0);
 
     return Scaffold(
-      backgroundColor: Colors.white,
       appBar: AppBar(
-        title: const Text(
+        title: Text(
           '更新日志',
           style: TextStyle(
             fontFamily: 'HarmonyOS_Sans_SC',
-            color: Colors.black,
+            color: c.textPrimary,
           ),
         ),
-        backgroundColor: Colors.white,
         elevation: 0,
-        foregroundColor: Colors.black,
-        iconTheme: const IconThemeData(color: Colors.black),
+
         bottom: PreferredSize(
           preferredSize: const Size.fromHeight(2.0),
           child: LinearProgressIndicator(
             value: displayProgress,
-            backgroundColor: Colors.grey.shade200,
-            valueColor: const AlwaysStoppedAnimation<Color>(
-              Color.fromRGBO(157, 212, 237, 1.0),
-            ),
+            backgroundColor: c.divider,
+            valueColor: AlwaysStoppedAnimation<Color>(c.progressBar),
             minHeight: 2.0,
           ),
         ),
@@ -188,16 +175,16 @@ class _ChangelogPageState extends State<ChangelogPage>
           ? Center(
               child: Text(
                 _error!,
-                style: const TextStyle(
+                style: TextStyle(
                   fontFamily: 'HarmonyOS_Sans_SC',
-                  color: Colors.grey,
+                  color: c.textTertiary,
                 ),
               ),
             )
           : SingleChildScrollView(
               controller: _scrollController,
               padding: const EdgeInsets.all(16.0),
-              child: _cachedMarkdown ?? const SizedBox.shrink(),
+              child: _buildMarkdown(context, _markdownContent),
             ),
     );
   }

lib/theme/app_colors.dart

@@ -0,0 +1,164 @@
+import 'package:flutter/material.dart';
+
+@immutable
+class AppColors extends ThemeExtension<AppColors> {
+  final Color background; // 页面背景
+  final Color surface; // 卡片/面板背景
+  final Color textPrimary; // 主文字
+  final Color textSecondary; // 次要文字
+  final Color textTertiary; // 弱化文字
+  final Color divider; // 分割线
+  final Color icon; // 图标色
+
+  final Color healthGreen; // 健康度 ≥80%
+  final Color healthYellow; // 70~80%
+  final Color healthOrange;
+  final Color healthRed; // <70% 或异常
+  final Color barEmpty; // 无数据柱
+
+  final Color voltUp; // 电压↑
+  final Color voltDown; // 电压↓
+  final Color tempUp;
+  final Color tempDown;
+
+  final Color progressBar; // 更新日志进度条
+  final Color statusBarTint; // 状态栏背景
+
+  const AppColors({
+    required this.background,
+    required this.surface,
+    required this.textPrimary,
+    required this.textSecondary,
+    required this.textTertiary,
+    required this.divider,
+    required this.icon,
+    required this.healthGreen,
+    required this.healthYellow,
+    required this.healthOrange,
+    required this.healthRed,
+    required this.barEmpty,
+    required this.voltUp,
+    required this.voltDown,
+    required this.tempUp,
+    required this.tempDown,
+    required this.progressBar,
+    required this.statusBarTint,
+  });
+
+  @override
+  AppColors copyWith({
+    Color? background,
+    Color? surface,
+    Color? textPrimary,
+    Color? textSecondary,
+    Color? textTertiary,
+    Color? divider,
+    Color? icon,
+    Color? healthGreen,
+    Color? healthYellow,
+    Color? healthOrange,
+    Color? healthRed,
+    Color? barEmpty,
+    Color? voltUp,
+    Color? voltDown,
+    Color? tempUp,
+    Color? tempDown,
+    Color? progressBar,
+    Color? statusBarTint,
+  }) {
+    return AppColors(
+      background: background ?? this.background,
+      surface: surface ?? this.surface,
+      textPrimary: textPrimary ?? this.textPrimary,
+      textSecondary: textSecondary ?? this.textSecondary,
+      textTertiary: textTertiary ?? this.textTertiary,
+      divider: divider ?? this.divider,
+      icon: icon ?? this.icon,
+      healthGreen: healthGreen ?? this.healthGreen,
+      healthYellow: healthYellow ?? this.healthYellow,
+      healthOrange: healthOrange ?? this.healthOrange,
+      healthRed: healthRed ?? this.healthRed,
+      barEmpty: barEmpty ?? this.barEmpty,
+      voltUp: voltUp ?? this.voltUp,
+      voltDown: voltDown ?? this.voltDown,
+      tempUp: tempUp ?? this.tempUp,
+      tempDown: tempDown ?? this.tempDown,
+      progressBar: progressBar ?? this.progressBar,
+      statusBarTint: statusBarTint ?? this.statusBarTint,
+    );
+  }
+
+  @override
+  AppColors lerp(ThemeExtension<AppColors>? other, double t) {
+    if (other is! AppColors) return this;
+    return AppColors(
+      background: Color.lerp(background, other.background, t)!,
+      surface: Color.lerp(surface, other.surface, t)!,
+      textPrimary: Color.lerp(textPrimary, other.textPrimary, t)!,
+      textSecondary: Color.lerp(textSecondary, other.textSecondary, t)!,
+      textTertiary: Color.lerp(textTertiary, other.textTertiary, t)!,
+      divider: Color.lerp(divider, other.divider, t)!,
+      icon: Color.lerp(icon, other.icon, t)!,
+      healthGreen: Color.lerp(healthGreen, other.healthGreen, t)!,
+      healthYellow: Color.lerp(healthYellow, other.healthYellow, t)!,
+      healthOrange: Color.lerp(healthOrange, other.healthOrange, t)!,
+      healthRed: Color.lerp(healthRed, other.healthRed, t)!,
+      barEmpty: Color.lerp(barEmpty, other.barEmpty, t)!,
+      voltUp: Color.lerp(voltUp, other.voltUp, t)!,
+      voltDown: Color.lerp(voltDown, other.voltDown, t)!,
+      tempUp: Color.lerp(tempUp, other.tempUp, t)!,
+      tempDown: Color.lerp(tempDown, other.tempDown, t)!,
+      progressBar: Color.lerp(progressBar, other.progressBar, t)!,
+      statusBarTint: Color.lerp(statusBarTint, other.statusBarTint, t)!,
+    );
+  }
+}
+
+/// 浅色主题（保持现有视觉）
+const AppColors kLightColors = AppColors(
+  background: Colors.white,
+  surface: Color(0xFFF0F4F8),
+  textPrimary: Colors.black,
+  textSecondary: Color(0xFF5F5F5F),
+  textTertiary: Colors.grey,
+  divider: Color(0xFFE0E0E0),
+  icon: Colors.black,
+  healthGreen: Color(0xFF00B140),
+  healthYellow: Color(0xFFEFDF00),
+  healthOrange: Color(0xFFD75A16),
+  healthRed: Colors.red,
+  barEmpty: Color(0xFFE0E0E0),
+  voltUp: Colors.red,
+  voltDown: Colors.blue,
+  tempUp: Colors.red,
+  tempDown: Colors.blue,
+  progressBar: Color.fromRGBO(157, 212, 237, 1.0),
+  statusBarTint: Color.fromRGBO(157, 212, 237, 0.1),
+);
+
+/// 深色主题（色相保留，明度调整）
+const AppColors kDarkColors = AppColors(
+  background: Color(0xFF121212),
+  surface: Color(0xFF1E1E1E),
+  textPrimary: Color(0xFFE8E8E8),
+  textSecondary: Color(0xFFA0A0A0),
+  textTertiary: Color(0xFF707070),
+  divider: Color(0xFF2A2A2A),
+  icon: Color(0xFFE8E8E8),
+  healthGreen: Color(0xFF00D14D),
+  healthYellow: Color(0xFFD4C520),
+  healthOrange: Color(0xFFFF7838),
+  healthRed: Color(0xFFFF5252),
+  barEmpty: Color(0xFF2A2A2A),
+  voltUp: Color(0xFFFF5252),
+  voltDown: Color(0xFF5AA9FF),
+  tempUp: Color(0xFFFF5252),
+  tempDown: Color(0xFF5AA9FF),
+  progressBar: Color(0xFF5A9BBD),
+  statusBarTint: Color(0xFF121212),
+);
+
+/// 便捷扩展：context.colors.textPrimary
+extension AppColorsX on BuildContext {
+  AppColors get colors => Theme.of(this).extension<AppColors>()!;
+}

lib/theme/theme_service.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class ThemeService {
+  static const _prefKey = 'theme_mode';
+  static final ValueNotifier<ThemeMode> notifier = ValueNotifier(
+    ThemeMode.system,
+  );
+
+  /// 启动时调用（main.dart）
+  static Future<void> init() async {
+    final prefs = await SharedPreferences.getInstance();
+    final saved = prefs.getString(_prefKey);
+    notifier.value = _parse(saved);
+  }
+
+  /// 菜单里调用
+  static Future<void> setMode(ThemeMode mode) async {
+    notifier.value = mode;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(_prefKey, _name(mode));
+  }
+
+  static ThemeMode _parse(String? s) {
+    switch (s) {
+      case 'light':
+        return ThemeMode.light;
+      case 'dark':
+        return ThemeMode.dark;
+      default:
+        return ThemeMode.system;
+    }
+  }
+
+  static String _name(ThemeMode m) {
+    switch (m) {
+      case ThemeMode.light:
+        return 'light';
+      case ThemeMode.dark:
+        return 'dark';
+      case ThemeMode.system:
+        return 'system';
+    }
+  }
+}

lib/widgets/battery_info_panel.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import '../models/data_abnormal_type.dart';
+import '../theme/app_colors.dart';
 
 class BatteryInfoPanel extends StatelessWidget {
   final double batteryVolt;
@@ -9,9 +10,8 @@ class BatteryInfoPanel extends StatelessWidget {
   final double minVolt;
   final double maxTemp;
   final double minTemp;
-  final DataAbnormalType abnormalType;
-
   final double tempAvg;
+  final DataAbnormalType abnormalType;
 
   const BatteryInfoPanel({
     super.key,
@@ -27,19 +27,22 @@ class BatteryInfoPanel extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
     final bool isVoltageAbnormal =
         abnormalType == DataAbnormalType.voltageAbnormal;
-    final Color voltColor = isVoltageAbnormal ? Colors.red : Colors.black;
+    final Color voltColor = isVoltageAbnormal ? c.healthRed : c.textPrimary;
 
     return Row(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
+        // ---------- 电压列 ----------
         Expanded(
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
               _buildInfoItem(
-                _buildIcon('voltage'),
+                context,
+                _buildIcon(context, 'voltage'),
                 '电压',
                 '${batteryVolt.toStringAsFixed(3)}V',
                 textColor: voltColor,
@@ -53,22 +56,17 @@ class BatteryInfoPanel extends StatelessWidget {
                         fontFamily: 'Flyme',
                         fontSize: 14,
                         fontWeight: FontWeight.w500,
-                        color: Colors.red,
+                        color: c.voltUp,
                       ),
                       children: [
-                        const TextSpan(
+                        TextSpan(
                           text: '↑ ',
                           style: TextStyle(
                             fontFamily: 'HarmonyOS_Sans_SC',
-                            color: Colors.red,
-                          ),
-                        ),
-                        TextSpan(
-                          text: '${maxVolt.toStringAsFixed(3)}V',
-                          style: TextStyle(
-                            color: isVoltageAbnormal ? Colors.red : Colors.red,
+                            color: c.voltUp,
                           ),
                         ),
+                        TextSpan(text: '${maxVolt.toStringAsFixed(3)}V'),
                       ],
                     ),
                   ),
@@ -79,22 +77,17 @@ class BatteryInfoPanel extends StatelessWidget {
                         fontFamily: 'Flyme',
                         fontSize: 14,
                         fontWeight: FontWeight.w500,
-                        color: Colors.blue,
+                        color: c.voltDown,
                       ),
                       children: [
-                        const TextSpan(
+                        TextSpan(
                           text: '↓ ',
                           style: TextStyle(
                             fontFamily: 'HarmonyOS_Sans_SC',
-                            color: Colors.blue,
-                          ),
-                        ),
-                        TextSpan(
-                          text: '${minVolt.toStringAsFixed(3)}V',
-                          style: TextStyle(
-                            color: isVoltageAbnormal ? Colors.red : Colors.blue,
+                            color: c.voltDown,
                           ),
                         ),
+                        TextSpan(text: '${minVolt.toStringAsFixed(3)}V'),
                       ],
                     ),
                   ),
@@ -103,33 +96,34 @@ class BatteryInfoPanel extends StatelessWidget {
             ],
           ),
         ),
+        // ---------- 温度列 ----------
         Expanded(
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
               _buildInfoItem(
-                _buildIcon('temperature'),
+                context,
+                _buildIcon(context, 'temperature'),
                 '温度',
                 '${batteryTemp.toStringAsFixed(0)}℃',
               ),
               const SizedBox(height: 8),
-              // 🆕 一行显示：↑ max ↓ min [avg] avg
               Row(
                 children: [
                   RichText(
                     text: TextSpan(
-                      style: const TextStyle(
+                      style: TextStyle(
                         fontFamily: 'Flyme',
                         fontSize: 12,
                         fontWeight: FontWeight.w500,
-                        color: Colors.red,
+                        color: c.tempUp,
                       ),
                       children: [
-                        const TextSpan(
+                        TextSpan(
                           text: '↑ ',
                           style: TextStyle(
                             fontFamily: 'HarmonyOS_Sans_SC',
-                            color: Colors.red,
+                            color: c.tempUp,
                           ),
                         ),
                         TextSpan(text: '${maxTemp.toStringAsFixed(1)}℃'),
@@ -139,18 +133,18 @@ class BatteryInfoPanel extends StatelessWidget {
                   const SizedBox(width: 6),
                   RichText(
                     text: TextSpan(
-                      style: const TextStyle(
+                      style: TextStyle(
                         fontFamily: 'Flyme',
                         fontSize: 12,
                         fontWeight: FontWeight.w500,
-                        color: Colors.blue,
+                        color: c.tempDown,
                       ),
                       children: [
-                        const TextSpan(
+                        TextSpan(
                           text: '↓ ',
                           style: TextStyle(
                             fontFamily: 'HarmonyOS_Sans_SC',
-                            color: Colors.blue,
+                            color: c.tempDown,
                           ),
                         ),
                         TextSpan(text: '${minTemp.toStringAsFixed(1)}℃'),
@@ -158,15 +152,15 @@ class BatteryInfoPanel extends StatelessWidget {
                     ),
                   ),
                   const SizedBox(width: 6),
-                  _buildIcon('avg', size: 14),
+                  _buildIcon(context, 'avg', size: 14),
                   const SizedBox(width: 2),
                   Text(
                     '${tempAvg.toStringAsFixed(1)}℃',
-                    style: const TextStyle(
+                    style: TextStyle(
                       fontFamily: 'Flyme',
                       fontSize: 12,
                       fontWeight: FontWeight.w500,
-                      color: Colors.grey,
+                      color: c.textTertiary,
                     ),
                   ),
                 ],
@@ -178,50 +172,54 @@ class BatteryInfoPanel extends StatelessWidget {
     );
   }
 
-  Widget _buildIcon(String type, {double size = 18}) {
+  Widget _buildIcon(BuildContext context, String type, {double size = 18}) {
+    final c = context.colors;
+    final filter = ColorFilter.mode(c.textTertiary, BlendMode.srcIn);
     switch (type) {
       case 'voltage':
         return SvgPicture.asset(
           'assets/icons/si--lightning-fill.svg',
           width: size,
           height: size,
-          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
+          colorFilter: filter,
         );
       case 'temperature':
         return SvgPicture.asset(
           'assets/icons/mdi--temperature.svg',
           width: size,
           height: size,
-          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
+          colorFilter: filter,
         );
-      case 'avg': // 🆕
+      case 'avg':
         return SvgPicture.asset(
           'assets/icons/avg.svg',
           width: size,
           height: size,
-          colorFilter: const ColorFilter.mode(Colors.grey, BlendMode.srcIn),
+          colorFilter: filter,
         );
       default:
-        return Icon(Icons.help_outline, size: size, color: Colors.grey);
+        return Icon(Icons.help_outline, size: size, color: c.textTertiary);
     }
   }
 
   Widget _buildInfoItem(
+    BuildContext context,
     Widget icon,
     String label,
     String value, {
-    Color textColor = Colors.black,
+    Color? textColor,
   }) {
+    final c = context.colors;
     return Row(
       children: [
         icon,
         const SizedBox(width: 6),
         Text(
           label,
-          style: const TextStyle(
+          style: TextStyle(
             fontFamily: 'HarmonyOS_Sans_SC',
             fontSize: 14,
-            color: Colors.grey,
+            color: c.textTertiary,
           ),
         ),
         const SizedBox(width: 6),
@@ -231,7 +229,7 @@ class BatteryInfoPanel extends StatelessWidget {
             fontFamily: 'Flyme',
             fontSize: 16,
             fontWeight: FontWeight.w500,
-            color: textColor,
+            color: textColor ?? c.textPrimary,
           ),
         ),
       ],

lib/widgets/battery_summary.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import '../models/data_abnormal_type.dart';
+import '../theme/app_colors.dart';
 
 class BatterySummary extends StatelessWidget {
   final double healthPercent;
@@ -19,25 +20,23 @@ class BatterySummary extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
     final bool isAbnormal = abnormalType != DataAbnormalType.none;
     final bool isCapacityAbnormal =
         abnormalType == DataAbnormalType.capacityTooLow ||
         abnormalType == DataAbnormalType.capacityTooHigh;
 
-    // 健康度颜色：异常时红色，否则按阈值
     final Color healthColor = isAbnormal
-        ? Colors.red
-        : (healthPercent < 70 ? Colors.red : Colors.black);
+        ? c.healthRed
+        : (healthPercent < 70 ? c.healthRed : c.textPrimary);
 
-    // 容量颜色：异常时红色，否则灰色
     final Color capacityColor = isCapacityAbnormal
-        ? Colors.red
-        : const Color(0xFF5F5F5F);
+        ? c.healthRed
+        : c.textSecondary;
 
     return Row(
       crossAxisAlignment: CrossAxisAlignment.end,
       children: [
-        // 健康度大数字
         Row(
           crossAxisAlignment: CrossAxisAlignment.baseline,
           textBaseline: TextBaseline.alphabetic,
@@ -60,34 +59,33 @@ class BatterySummary extends StatelessWidget {
                 fontSize: 20,
                 fontWeight: FontWeight.w300,
                 height: 1.0,
-                color: healthColor == Colors.red
-                    ? Colors.red
-                    : Colors.grey.shade600,
+                color: healthColor == c.healthRed
+                    ? c.healthRed
+                    : c.textSecondary,
               ),
             ),
           ],
         ),
         const Spacer(),
-        // cycles + mAh
         Column(
           crossAxisAlignment: CrossAxisAlignment.end,
           children: [
             RichText(
               text: TextSpan(
-                style: const TextStyle(
+                style: TextStyle(
                   fontFamily: 'Flyme',
                   fontSize: 16,
                   fontWeight: FontWeight.w500,
                   height: 1.2,
-                  color: Colors.black,
+                  color: c.textPrimary,
                 ),
                 children: [
                   TextSpan(text: '$cycleCount'),
-                  const TextSpan(
+                  TextSpan(
                     text: ' cycles',
                     style: TextStyle(
                       fontFamily: 'HarmonyOS_Sans_SC',
-                      color: Colors.black,
+                      color: c.textPrimary,
                     ),
                   ),
                 ],

lib/widgets/charge_detail_page.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import '../utils/charge_utils.dart';
+import '../theme/app_colors.dart';
 
 class ChargeDetailPage extends StatelessWidget {
   final String chargeType;
@@ -41,50 +42,48 @@ class ChargeDetailPage extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
     return AnnotatedRegion<SystemUiOverlayStyle>(
-      value: const SystemUiOverlayStyle(
-        statusBarColor: Color.fromRGBO(157, 212, 237, 0.1),
-        statusBarIconBrightness: Brightness.dark,
-        statusBarBrightness: Brightness.dark,
+      value: SystemUiOverlayStyle(
+        statusBarColor: c.statusBarTint,
+        statusBarIconBrightness: isDark ? Brightness.light : Brightness.dark,
+        statusBarBrightness: Theme.of(context).brightness,
       ),
       child: Scaffold(
-        backgroundColor: Colors.white,
         appBar: AppBar(
           title: const Text('充电详情'),
-          backgroundColor: Colors.white,
+          backgroundColor: c.background,
           elevation: 0,
-          scrolledUnderElevation: 0,
-          shadowColor: Colors.transparent,
-          surfaceTintColor: Colors.transparent,
-          foregroundColor: Colors.black,
-          iconTheme: const IconThemeData(color: Colors.black),
         ),
         body: Padding(
           padding: const EdgeInsets.all(20.0),
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              _buildTextRow('协议', _getProtocolDisplay()),
+              _buildTextRow(context, '协议', _getProtocolDisplay()),
               const Divider(),
-
               if (!isWireless) ...[
-                _buildTextRow('标定档位', _getRequestedDisplay()),
+                _buildTextRow(context, '标定档位', _getRequestedDisplay()),
                 const Divider(),
-                _buildTextRow('实际功率', _getActualDisplay()),
+                _buildTextRow(context, '实际功率', _getActualDisplay()),
                 const Divider(),
               ] else ...[
-                _buildTextRow('功率', ChargeUtils.getDisplayPowerWireless(power)),
+                _buildTextRow(
+                  context,
+                  '功率',
+                  ChargeUtils.getDisplayPowerWireless(power),
+                ),
                 const Divider(),
               ],
-
-              _buildDetailRow('电压', volt, 'V'),
+              _buildDetailRow(context, '电压', volt, 'V'),
               const Divider(),
-              _buildDetailRow('电流', curr, 'A'),
+              _buildDetailRow(context, '电流', curr, 'A'),
               const Divider(),
-
-              if (isWireless) _buildTextRow('类型', '无线'),
-              if (!isWireless && wiredLevel == null) _buildTextRow('档位', '自动'),
-
+              if (isWireless) _buildTextRow(context, '类型', '无线'),
+              if (!isWireless && wiredLevel == null)
+                _buildTextRow(context, '档位', '自动'),
               const Spacer(),
               Center(
                 child: Text(
@@ -92,7 +91,7 @@ class ChargeDetailPage extends StatelessWidget {
                   style: TextStyle(
                     fontFamily: 'HarmonyOS_Sans_SC',
                     fontSize: 12,
-                    color: Colors.grey.shade500,
+                    color: c.textTertiary,
                   ),
                 ),
               ),
@@ -103,8 +102,8 @@ class ChargeDetailPage extends StatelessWidget {
     );
   }
 
-  /// 纯文本行（协议、功率、档位等）
-  Widget _buildTextRow(String label, String value) {
+  Widget _buildTextRow(BuildContext context, String label, String value) {
+    final c = context.colors;
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 6.0),
       child: Row(
@@ -112,20 +111,20 @@ class ChargeDetailPage extends StatelessWidget {
         children: [
           Text(
             label,
-            style: const TextStyle(
+            style: TextStyle(
               fontFamily: 'HarmonyOS_Sans_SC',
               fontSize: 16,
               fontWeight: FontWeight.w400,
-              color: Colors.grey,
+              color: c.textTertiary,
             ),
           ),
           Text(
             value,
-            style: const TextStyle(
-              fontFamily: 'HarmonyOS_Sans_SC', // 复杂字符串保持 Harmony
+            style: TextStyle(
+              fontFamily: 'HarmonyOS_Sans_SC',
               fontSize: 16,
               fontWeight: FontWeight.w500,
-              color: Colors.black87,
+              color: c.textPrimary,
             ),
           ),
         ],
@@ -133,8 +132,13 @@ class ChargeDetailPage extends StatelessWidget {
     );
   }
 
-  /// 数值行（电压/电流，数字用 Flyme，单位用 Harmony）
-  Widget _buildDetailRow(String label, double value, String unit) {
+  Widget _buildDetailRow(
+    BuildContext context,
+    String label,
+    double value,
+    String unit,
+  ) {
+    final c = context.colors;
     return Padding(
       padding: const EdgeInsets.symmetric(vertical: 6.0),
       child: Row(
@@ -142,24 +146,24 @@ class ChargeDetailPage extends StatelessWidget {
         children: [
           Text(
             label,
-            style: const TextStyle(
+            style: TextStyle(
               fontFamily: 'HarmonyOS_Sans_SC',
               fontSize: 16,
               fontWeight: FontWeight.w400,
-              color: Colors.grey,
+              color: c.textTertiary,
             ),
           ),
           RichText(
             text: TextSpan(
-              style: const TextStyle(
+              style: TextStyle(
                 fontSize: 16,
                 fontWeight: FontWeight.w500,
-                color: Colors.black87,
+                color: c.textPrimary,
               ),
               children: [
                 TextSpan(
                   text: value.toStringAsFixed(2),
-                  style: const TextStyle(fontFamily: 'Flyme'), // 🟢 数字用 Flyme
+                  style: const TextStyle(fontFamily: 'Flyme'),
                 ),
                 TextSpan(
                   text: unit,

lib/widgets/charge_entry.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../theme/app_colors.dart';
 
 class ChargeEntry extends StatelessWidget {
   final String summary;
@@ -14,6 +15,7 @@ class ChargeEntry extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
     return GestureDetector(
       onTap: isCharging ? onTap : null,
       child: Row(
@@ -21,11 +23,11 @@ class ChargeEntry extends StatelessWidget {
         children: [
           Text(
             summary,
-            style: const TextStyle(
-              fontFamily: 'HarmonyOS_Sans_SC', // 🟢 混合文本用 Harmony
+            style: TextStyle(
+              fontFamily: 'HarmonyOS_Sans_SC',
               fontSize: 16,
               fontWeight: FontWeight.w500,
-              color: Colors.black87,
+              color: c.textPrimary,
             ),
           ),
           Row(
@@ -36,7 +38,7 @@ class ChargeEntry extends StatelessWidget {
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 16,
                   fontWeight: FontWeight.w500,
-                  color: Colors.grey.shade700,
+                  color: c.textTertiary,
                 ),
               ),
               const SizedBox(width: 4),
@@ -46,7 +48,7 @@ class ChargeEntry extends StatelessWidget {
                   fontFamily: 'HarmonyOS_Sans_SC',
                   fontSize: 16,
                   fontWeight: FontWeight.w500,
-                  color: Colors.grey.shade700,
+                  color: c.textTertiary,
                 ),
               ),
             ],

lib/widgets/trend_chart.dart

@@ -1,11 +1,6 @@
 import 'package:flutter/material.dart';
+import '../theme/app_colors.dart';
 
-// --- 潘通色定义 ---
-const Color kHealthGreen = Color(0xFF00B140);
-const Color kHealthYellow = Color(0xFFEFDF00);
-const Color kHealthOrange = Color(0xFFD75A16);
-
-/// 趋势图柱状图组件
 class TrendChart extends StatelessWidget {
   final List<Map<String, dynamic>> data;
   final int designCap;
@@ -14,6 +9,8 @@ class TrendChart extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final c = context.colors;
+
     List<Map<String, dynamic>> displayData = data.isNotEmpty
         ? data
         : _getMockData();
@@ -48,12 +45,13 @@ class TrendChart extends StatelessWidget {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        const Text(
+        Text(
           '容量百分比变动趋势（近15天）',
           style: TextStyle(
             fontFamily: 'HarmonyOS_Sans_SC',
             fontSize: 16,
             fontWeight: FontWeight.w500,
+            color: c.textPrimary,
           ),
         ),
         const SizedBox(height: 8),
@@ -64,13 +62,13 @@ class TrendChart extends StatelessWidget {
               height: 180,
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                children: const [
+                children: [
                   Text(
                     '100',
                     style: TextStyle(
                       fontFamily: 'Flyme',
                       fontSize: 10,
-                      color: Colors.grey,
+                      color: c.textTertiary,
                       height: 1.0,
                     ),
                   ),
@@ -79,7 +77,7 @@ class TrendChart extends StatelessWidget {
                     style: TextStyle(
                       fontFamily: 'Flyme',
                       fontSize: 10,
-                      color: Colors.grey,
+                      color: c.textTertiary,
                       height: 1.0,
                     ),
                   ),
@@ -106,14 +104,14 @@ class TrendChart extends StatelessWidget {
                               Color barColor;
                               if (value > 0) {
                                 if (value >= 80) {
-                                  barColor = kHealthGreen;
+                                  barColor = c.healthGreen;
                                 } else if (value >= 70) {
-                                  barColor = kHealthYellow;
+                                  barColor = c.healthYellow;
                                 } else {
-                                  barColor = Colors.red;
+                                  barColor = c.healthRed;
                                 }
                               } else {
-                                barColor = Colors.grey.shade300;
+                                barColor = c.barEmpty;
                               }
                               double clampedValue = value.clamp(70.0, 100.0);
                               double heightFactor =
@@ -144,10 +142,10 @@ class TrendChart extends StatelessWidget {
                             bottom: 2,
                             child: Text(
                               sevenDaysAgoDate,
-                              style: const TextStyle(
+                              style: TextStyle(
                                 fontFamily: 'HarmonyOS_Sans_SC',
                                 fontSize: 9,
-                                color: Colors.grey,
+                                color: c.textTertiary,
                                 height: 1.0,
                               ),
                             ),
@@ -158,10 +156,10 @@ class TrendChart extends StatelessWidget {
                             bottom: 2,
                             child: Text(
                               todayDate,
-                              style: const TextStyle(
+                              style: TextStyle(
                                 fontFamily: 'HarmonyOS_Sans_SC',
                                 fontSize: 9,
-                                color: Colors.black,
+                                color: c.textPrimary,
                                 height: 1.0,
                                 fontWeight: FontWeight.w600,
                               ),
@@ -176,14 +174,14 @@ class TrendChart extends StatelessWidget {
           ],
         ),
         if (percents.every((v) => v == 0))
-          const Padding(
-            padding: EdgeInsets.only(top: 8.0),
+          Padding(
+            padding: const EdgeInsets.only(top: 8.0),
             child: Text(
               '暂无历史数据，请点击刷新按钮更新',
               style: TextStyle(
                 fontFamily: 'HarmonyOS_Sans_SC',
                 fontSize: 12,
-                color: Colors.grey,
+                color: c.textTertiary,
               ),
             ),
           ),

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.7.2
+version: 1.8.0
 
 environment:
   sdk: ^3.9.2