281 lines
9.9 KiB
Dart
281 lines
9.9 KiB
Dart
// Author: fruit.com.cn
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'app_colors.dart';
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import 'app_dimens.dart';
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/// 深色视觉主题（默认且唯一）。
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abstract final class AppTheme {
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/// 页面背景：顶部暖黑、底部纯黑，避免旧深蓝渐变。
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static const LinearGradient pageGradient = LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [
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AppColors.mineGradientTop,
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AppColors.mineGradientMiddle,
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AppColors.mineGradientBottom,
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],
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stops: [0, 0.4, 0.75],
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);
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/// 卡片阴影关闭，改用底色与分割线。
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static const BoxShadow cardShadow = BoxShadow(
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color: AppColors.cardShadow,
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blurRadius: AppDimens.cardShadowBlur,
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offset: Offset(0, AppDimens.cardShadowY),
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);
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static final BorderRadius _buttonRadius = BorderRadius.circular(
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AppDimens.buttonRadius,
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);
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static final BorderRadius _cardRadius = BorderRadius.circular(
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AppDimens.cardRadius,
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);
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static final BorderRadius _inputRadius = BorderRadius.circular(
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AppDimens.inputRadius,
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);
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/// 全局深色主题。
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static ThemeData dark() {
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const scheme = ColorScheme.dark(
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primary: AppColors.blue,
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onPrimary: AppColors.onPrimary,
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secondary: AppColors.secondary,
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onSecondary: AppColors.ink,
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primaryContainer: AppColors.raised,
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onPrimaryContainer: AppColors.onSurface,
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secondaryContainer: AppColors.badgePink,
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onSecondaryContainer: AppColors.badgePinkText,
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surface: AppColors.ink,
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onSurface: AppColors.onSurface,
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surfaceContainerHighest: AppColors.raised,
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outline: AppColors.border,
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outlineVariant: AppColors.border,
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surfaceTint: AppColors.transparent,
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inversePrimary: AppColors.bluePressed,
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error: AppColors.error,
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onError: AppColors.onPrimary,
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);
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final base = ThemeData(
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useMaterial3: true,
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brightness: Brightness.dark,
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colorScheme: scheme,
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scaffoldBackgroundColor: AppColors.ink,
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canvasColor: AppColors.ink,
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fontFamily: 'PlusJakartaSans',
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progressIndicatorTheme: const ProgressIndicatorThemeData(
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color: AppColors.blue,
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),
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sliderTheme: const SliderThemeData(
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activeTrackColor: AppColors.blue,
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inactiveTrackColor: AppColors.border,
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thumbColor: AppColors.onPrimary,
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),
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tabBarTheme: const TabBarThemeData(
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labelColor: AppColors.blue,
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indicatorColor: AppColors.blue,
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unselectedLabelColor: AppColors.muted,
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),
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textButtonTheme: TextButtonThemeData(
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style: TextButton.styleFrom(
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foregroundColor: AppColors.primary,
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shape: RoundedRectangleBorder(borderRadius: _buttonRadius),
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),
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),
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elevatedButtonTheme: ElevatedButtonThemeData(
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style: ButtonStyle(
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backgroundColor: WidgetStateProperty.resolveWith(_buttonColor),
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foregroundColor: const WidgetStatePropertyAll(AppColors.onPrimary),
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elevation: const WidgetStatePropertyAll(0),
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minimumSize: const WidgetStatePropertyAll(
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Size(0, AppDimens.buttonHeight),
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),
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shape: WidgetStatePropertyAll(
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RoundedRectangleBorder(borderRadius: _buttonRadius),
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),
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),
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),
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filledButtonTheme: FilledButtonThemeData(
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style: ButtonStyle(
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backgroundColor: WidgetStateProperty.resolveWith(_buttonColor),
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foregroundColor: const WidgetStatePropertyAll(AppColors.onPrimary),
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minimumSize: const WidgetStatePropertyAll(
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Size(0, AppDimens.buttonHeight),
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),
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shape: WidgetStatePropertyAll(
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RoundedRectangleBorder(borderRadius: _buttonRadius),
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),
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),
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),
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outlinedButtonTheme: OutlinedButtonThemeData(
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style: ButtonStyle(
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foregroundColor: const WidgetStatePropertyAll(AppColors.textPrimary),
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minimumSize: const WidgetStatePropertyAll(
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Size(0, AppDimens.buttonHeight),
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),
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side: const WidgetStatePropertyAll(
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BorderSide(color: AppColors.mineOutline),
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),
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shape: WidgetStatePropertyAll(
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RoundedRectangleBorder(borderRadius: _buttonRadius),
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),
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),
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),
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inputDecorationTheme: InputDecorationTheme(
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filled: true,
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fillColor: AppColors.input,
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hintStyle: const TextStyle(color: AppColors.subtle),
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labelStyle: const TextStyle(color: AppColors.muted),
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border: OutlineInputBorder(
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borderRadius: _inputRadius,
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borderSide: const BorderSide(color: AppColors.border),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: _inputRadius,
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borderSide: const BorderSide(color: AppColors.border),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: _inputRadius,
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borderSide: const BorderSide(color: AppColors.blue),
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),
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),
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chipTheme: ChipThemeData(
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backgroundColor: AppColors.raised,
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selectedColor: AppColors.blue.withValues(alpha: 0.22),
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labelStyle: const TextStyle(color: AppColors.onSurface),
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secondaryLabelStyle: const TextStyle(color: AppColors.muted),
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side: const BorderSide(color: AppColors.border),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(AppDimens.chipRadius),
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),
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),
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appBarTheme: const AppBarTheme(
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backgroundColor: AppColors.transparent,
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foregroundColor: AppColors.textPrimary,
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elevation: 0,
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scrolledUnderElevation: 0,
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surfaceTintColor: AppColors.transparent,
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systemOverlayStyle: SystemUiOverlayStyle.light,
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titleTextStyle: TextStyle(
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color: AppColors.textPrimary,
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fontFamily: 'Outfit',
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fontSize: AppDimens.pageTitle,
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fontWeight: FontWeight.w800,
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),
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),
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iconTheme: const IconThemeData(color: AppColors.textPrimary),
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dividerTheme: const DividerThemeData(
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color: AppColors.border,
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thickness: 1,
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space: 1,
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),
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cardTheme: CardThemeData(
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color: AppColors.card,
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elevation: 0,
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shadowColor: AppColors.transparent,
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surfaceTintColor: AppColors.transparent,
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shape: RoundedRectangleBorder(
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borderRadius: _cardRadius,
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side: const BorderSide(color: AppColors.border),
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),
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),
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dialogTheme: DialogThemeData(
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backgroundColor: AppColors.raised,
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surfaceTintColor: AppColors.transparent,
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shape: RoundedRectangleBorder(borderRadius: _cardRadius),
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titleTextStyle: const TextStyle(
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color: AppColors.onSurface,
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fontFamily: 'Outfit',
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fontSize: AppDimens.sectionTitle,
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fontWeight: FontWeight.w700,
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),
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contentTextStyle: const TextStyle(
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color: AppColors.muted,
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fontSize: AppDimens.body,
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),
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),
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bottomNavigationBarTheme: const BottomNavigationBarThemeData(
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backgroundColor: AppColors.navBackground,
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selectedItemColor: AppColors.navSelected,
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unselectedItemColor: AppColors.navUnselected,
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elevation: 0,
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type: BottomNavigationBarType.fixed,
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),
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bottomSheetTheme: const BottomSheetThemeData(
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backgroundColor: AppColors.transparent,
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modalBackgroundColor: AppColors.transparent,
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surfaceTintColor: AppColors.transparent,
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),
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switchTheme: SwitchThemeData(
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thumbColor: WidgetStateProperty.resolveWith(
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(states) => states.contains(WidgetState.selected)
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? AppColors.onPrimary
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: null,
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),
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trackColor: WidgetStateProperty.resolveWith(
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(states) =>
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states.contains(WidgetState.selected) ? AppColors.blue : null,
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),
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),
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snackBarTheme: const SnackBarThemeData(
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backgroundColor: AppColors.raised,
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contentTextStyle: TextStyle(color: AppColors.onSurface),
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actionTextColor: AppColors.secondary,
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),
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listTileTheme: const ListTileThemeData(
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iconColor: AppColors.onSurface,
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textColor: AppColors.onSurface,
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),
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);
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final textTheme = base.textTheme
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.apply(
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fontFamily: 'PlusJakartaSans',
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bodyColor: AppColors.cream,
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displayColor: AppColors.onSurface,
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)
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.copyWith(
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displayLarge: _display(base.textTheme.displayLarge),
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displayMedium: _display(base.textTheme.displayMedium),
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displaySmall: _display(base.textTheme.displaySmall),
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headlineLarge: _display(base.textTheme.headlineLarge),
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headlineMedium: _display(base.textTheme.headlineMedium),
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headlineSmall: _display(base.textTheme.headlineSmall),
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titleLarge: _display(base.textTheme.titleLarge),
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bodyLarge: base.textTheme.bodyLarge?.copyWith(
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color: AppColors.onSurface,
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),
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bodyMedium: base.textTheme.bodyMedium?.copyWith(
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color: AppColors.onSurface,
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),
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bodySmall: base.textTheme.bodySmall?.copyWith(color: AppColors.muted),
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labelLarge: base.textTheme.labelLarge?.copyWith(
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color: AppColors.onSurface,
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),
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labelMedium: base.textTheme.labelMedium?.copyWith(
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color: AppColors.muted,
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),
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labelSmall: base.textTheme.labelSmall?.copyWith(
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color: AppColors.subtle,
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),
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);
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return base.copyWith(textTheme: textTheme);
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}
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/// 兼容旧调用点，统一落到深色主题。
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static ThemeData light() => dark();
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static TextStyle? _display(TextStyle? style) =>
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style?.copyWith(fontFamily: 'Outfit', color: AppColors.onSurface);
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static Color _buttonColor(Set<WidgetState> states) {
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if (states.contains(WidgetState.pressed) ||
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states.contains(WidgetState.hovered) ||
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states.contains(WidgetState.focused)) {
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return AppColors.bluePressed;
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}
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return AppColors.blue;
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}
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}
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