style: 主题升级 — 暖茶绿 Soft Clinical

- 主色: 深青碧 #0E8C7D（专业信赖）
- 背景: 暖白 #FAF6F1（不再冰冷）
- 高亮: 琥珀 #F0984A（温暖人性）
- 全局圆角统一 14-26px
- 字体层级优化

health_app/lib/core/app_theme.dart

@@ -1,77 +1,115 @@
 import 'package:flutter/material.dart';
 
-/// 健康管家主题配置——薰衣草紫 + 温暖治愈风
+/// 健康管家主题 —— 暖茶绿 · Soft Clinical
+/// 深青碧色主调 + 暖白基底 + 琥珀点缀 避开传统医疗蓝/紫
 class AppTheme {
   AppTheme._();
 
-  static const Color primaryColor = Color(0xFF635BFF);
-  static const Color primaryLight = Color(0xFFEDEBFF);
-  static const Color primaryDark = Color(0xFF4B44D6);
-  static const Color background = Color(0xFFF8F9FF);
-  static const Color cardWhite = Color(0xFFFFFFFF);
-  static const Color textPrimary = Color(0xFF1A1A1A);
-  static const Color textSecondary = Color(0xFF666666);
-  static const Color textPlaceholder = Color(0xFF999999);
-  static const Color successGreen = Color(0xFF43A047);
-  static const Color errorRed = Color(0xFFE53935);
-  static const Color warningYellow = Color(0xFFF9A825);
-  static const Color secondaryButton = Color(0xFFE5E5F7);
+  // ── 品牌色 ──
+  static const Color primary = Color(0xFF0E8C7D);       // 深青碧 · 专业信赖
+  static const Color primaryLight = Color(0xFFE3F4F0);  // 浅青底
+  static const Color primaryDark = Color(0xFF0A6B5F);   // 深青
+
+  // ── 背景 ──
+  static const Color bg = Color(0xFFFAF6F1);            // 暖白 · 不冰冷
+  static const Color surface = Color(0xFFFFFCF9);       // 卡片白
+
+  // ── 文字 ──
+  static const Color text = Color(0xFF2D2B32);
+  static const Color textSub = Color(0xFF7B797F);
+  static const Color textHint = Color(0xFFB0ADB5);
+
+  // ── 功能色 ──
+  static const Color success = Color(0xFF43A047);
+  static const Color error = Color(0xFFE05D5D);
+  static const Color warning = Color(0xFFF0984A);
+  static const Color accent = Color(0xFFF0984A);        // 琥珀 · 高亮/操作
+
+  // ── 边框 & 分割 ──
+  static const Color border = Color(0xFFE8E4DF);
+  static const Color divider = Color(0xFFF0ECE7);
 
   static ThemeData get lightTheme => ThemeData(
         useMaterial3: true,
         colorScheme: ColorScheme.fromSeed(
-          seedColor: primaryColor,
-          primary: primaryColor,
-          surface: background,
+          seedColor: primary,
+          primary: primary,
+          surface: bg,
           brightness: Brightness.light,
         ),
-        scaffoldBackgroundColor: background,
+        scaffoldBackgroundColor: bg,
+
+        // AppBar
         appBarTheme: const AppBarTheme(
-          backgroundColor: cardWhite,
-          foregroundColor: textPrimary,
+          backgroundColor: surface,
+          foregroundColor: text,
           elevation: 0,
           centerTitle: true,
+          titleTextStyle: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: text),
         ),
+
+        // 卡片
         cardTheme: CardThemeData(
-          color: cardWhite,
+          color: surface,
           elevation: 0,
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
-          margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(18)),
+          margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
         ),
+
+        // 输入框
         inputDecorationTheme: InputDecorationTheme(
           filled: true,
-          fillColor: cardWhite,
-          contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+          fillColor: surface,
+          contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
           border: OutlineInputBorder(
-            borderRadius: BorderRadius.circular(12),
-            borderSide: const BorderSide(color: secondaryButton, width: 1.5),
+            borderRadius: BorderRadius.circular(14),
+            borderSide: const BorderSide(color: border),
           ),
           enabledBorder: OutlineInputBorder(
-            borderRadius: BorderRadius.circular(12),
-            borderSide: const BorderSide(color: secondaryButton, width: 1.5),
+            borderRadius: BorderRadius.circular(14),
+            borderSide: const BorderSide(color: border),
           ),
           focusedBorder: OutlineInputBorder(
-            borderRadius: BorderRadius.circular(12),
-            borderSide: const BorderSide(color: primaryColor, width: 1.5),
+            borderRadius: BorderRadius.circular(14),
+            borderSide: const BorderSide(color: primary, width: 1.5),
           ),
-          hintStyle: const TextStyle(color: textPlaceholder, fontSize: 16),
+          hintStyle: const TextStyle(color: textHint, fontSize: 15),
         ),
+
+        // 按钮
         elevatedButtonTheme: ElevatedButtonThemeData(
           style: ElevatedButton.styleFrom(
-            backgroundColor: primaryColor,
+            backgroundColor: primary,
             foregroundColor: Colors.white,
-            minimumSize: const Size(double.infinity, 48),
-            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
-            textStyle: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
+            minimumSize: const Size(double.infinity, 50),
+            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(26)),
+            textStyle: const TextStyle(fontSize: 17, fontWeight: FontWeight.w600),
+            elevation: 0,
           ),
         ),
+
+        // 圆角 Dialog
+        dialogTheme: DialogThemeData(
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
+          backgroundColor: surface,
+        ),
+
+        // 总体圆角
+        chipTheme: ChipThemeData(
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
+          backgroundColor: primaryLight,
+        ),
+
+        // 字体层级
         textTheme: const TextTheme(
-          headlineLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w600, color: textPrimary),
-          titleLarge: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: textPrimary),
-          bodyLarge: TextStyle(fontSize: 18, fontWeight: FontWeight.w400, color: textPrimary),
-          bodyMedium: TextStyle(fontSize: 16, fontWeight: FontWeight.w400, color: textSecondary),
-          labelMedium: TextStyle(fontSize: 14, fontWeight: FontWeight.w400, color: textSecondary),
-          labelSmall: TextStyle(fontSize: 12, fontWeight: FontWeight.w400, color: textSecondary),
+          headlineLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w700, color: text, letterSpacing: -0.5),
+          titleLarge: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: text),
+          titleMedium: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: text),
+          bodyLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.w400, color: text, height: 1.5),
+          bodyMedium: TextStyle(fontSize: 15, fontWeight: FontWeight.w400, color: textSub, height: 1.4),
+          labelLarge: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: textSub),
+          labelMedium: TextStyle(fontSize: 13, fontWeight: FontWeight.w400, color: textSub),
+          labelSmall: TextStyle(fontSize: 11, fontWeight: FontWeight.w400, color: textHint),
         ),
       );
 }