feat(ui): 统一应用主题色为天空蓝并优化渐变背景

将应用主色调从 '#BBF246' 更改为 '#87CEEB'（天空蓝），并更新所有相关组件和页面中的颜色引用。同时为多个页面添加统一的渐变背景，提升视觉效果和用户体验。新增压力分析模态框组件，并优化压力计组件的交互与显示逻辑。更新应用图标和启动图资源。

app/(tabs)/coach.tsx

@@ -17,7 +17,7 @@ import {
   Text,
   TextInput,
   TouchableOpacity,
-  View,
+  View
 } from 'react-native';
 import Markdown from 'react-native-markdown-display';
 import Animated, { FadeInDown, FadeInUp, Layout } from 'react-native-reanimated';
@@ -32,6 +32,7 @@ import { deleteConversation, getConversationDetail, listConversations, type AiCo
 import { loadAiCoachSessionCache, saveAiCoachSessionCache } from '@/services/aiCoachSession';
 import { api, getAuthToken, postTextStream } from '@/services/api';
 import dayjs from 'dayjs';
+import { LinearGradient } from 'expo-linear-gradient';
 import { ActionSheet } from '../../components/ui/ActionSheet';
 
 type Role = 'user' | 'assistant';
@@ -1121,7 +1122,7 @@ export default function CoachScreen() {
           style={[
             styles.bubble,
             {
-              backgroundColor: isUser ? theme.primary : 'rgba(187,242,70,0.16)',
+              backgroundColor: theme.card, // 16% opacity
               borderTopLeftRadius: isUser ? 16 : 6,
               borderTopRightRadius: isUser ? 6 : 16,
               maxWidth: isUser ? '82%' : '90%',
@@ -1347,7 +1348,7 @@ export default function CoachScreen() {
                         </View>
                       )}
                       {isSelected && isPending && (
-                        <ActivityIndicator size="small" color="#2D5016" />
+                        <ActivityIndicator size="small" color={Colors.light.accentGreenDark} />
                       )}
                       {isSelected && !isPending && (
                         <View style={styles.selectedBadge}>
@@ -1594,7 +1595,13 @@ export default function CoachScreen() {
   }
 
   return (
-    <View style={[styles.screen, { backgroundColor: theme.background }]}>
+    <View style={styles.screen}>
+      <LinearGradient
+        colors={[theme.backgroundGradientStart, theme.backgroundGradientEnd]}
+        style={styles.gradientBackground}
+        start={{ x: 0, y: 0 }}
+        end={{ x: 0, y: 1 }}
+      />
       {/* 顶部标题区域，显示教练名称、新建会话和历史按钮 */}
       <View
         style={[styles.header, { paddingTop: insets.top + 10 }]}
@@ -1608,14 +1615,14 @@ export default function CoachScreen() {
           <TouchableOpacity
             accessibilityRole="button"
             onPress={startNewConversation}
-            style={[styles.headerActionButton, { backgroundColor: 'rgba(187,242,70,0.2)' }]}
+            style={[styles.headerActionButton, { backgroundColor: `${Colors.light.accentGreen}33` }]} // 20% opacity
           >
             <Ionicons name="add-outline" size={18} color={theme.onPrimary} />
           </TouchableOpacity>
           <TouchableOpacity
             accessibilityRole="button"
             onPress={openHistory}
-            style={[styles.headerActionButton, { backgroundColor: 'rgba(187,242,70,0.2)' }]}
+            style={[styles.headerActionButton, { backgroundColor: `${Colors.light.accentGreen}33` }]} // 20% opacity
           >
             <Ionicons name="time-outline" size={18} color={theme.onPrimary} />
           </TouchableOpacity>
@@ -1680,7 +1687,7 @@ export default function CoachScreen() {
           contentContainerStyle={{ paddingHorizontal: 6, gap: 8 }}
         >
           {chips.map((c) => (
-            <TouchableOpacity key={c.key} style={[styles.chip, { borderColor: 'rgba(187,242,70,0.35)', backgroundColor: 'rgba(187,242,70,0.12)' }]} onPress={c.action}>
+            <TouchableOpacity key={c.key} style={[styles.chip, { borderColor: `${Colors.light.accentGreen}59`, backgroundColor: `${Colors.light.accentGreen}1F` }]} onPress={c.action}>
               <Text style={[styles.chipText, { color: '#192126' }]}>{c.label}</Text>
             </TouchableOpacity>
           ))}
@@ -1722,11 +1729,11 @@ export default function CoachScreen() {
           </ScrollView>
         )}
 
-        <View style={[styles.inputRow, { borderColor: 'rgba(187,242,70,0.35)', backgroundColor: 'rgba(187,242,70,0.08)' }]}>
+        <View style={[styles.inputRow, { borderColor: `${Colors.light.accentGreen}59`, backgroundColor: `${Colors.light.accentGreen}14` }]}>
           <TouchableOpacity
             accessibilityRole="button"
             onPress={pickImages}
-            style={[styles.mediaBtn, { backgroundColor: 'rgba(187,242,70,0.16)' }]}
+            style={[styles.mediaBtn, { backgroundColor: `${Colors.light.accentGreen}28` }]}
           >
             <Ionicons name="image-outline" size={18} color={'#192126'} />
           </TouchableOpacity>
@@ -1936,7 +1943,7 @@ const styles = StyleSheet.create({
     borderRadius: 8,
     alignItems: 'center',
     justifyContent: 'center',
-    backgroundColor: 'rgba(187,242,70,0.6)'
+    backgroundColor: `${Colors.light.accentGreen}99` // 60% opacity
   },
   dietOptionsContainer: {
     gap: 8,
@@ -1948,13 +1955,13 @@ const styles = StyleSheet.create({
     borderRadius: 12,
     backgroundColor: 'rgba(255,255,255,0.9)',
     borderWidth: 1,
-    borderColor: 'rgba(187,242,70,0.3)',
+    borderColor: `${Colors.light.accentGreen}4D`, // 30% opacity
   },
   dietOptionIconContainer: {
     width: 40,
     height: 40,
     borderRadius: 20,
-    backgroundColor: 'rgba(187,242,70,0.2)',
+    backgroundColor: `${Colors.light.accentGreen}33`, // 20% opacity
     alignItems: 'center',
     justifyContent: 'center',
     marginRight: 12,
@@ -2003,7 +2010,7 @@ const styles = StyleSheet.create({
     borderRadius: 10,
     alignItems: 'center',
     justifyContent: 'center',
-    backgroundColor: 'rgba(187,242,70,0.6)',
+    backgroundColor: `${Colors.light.accentGreen}99`, // 60% opacity
     alignSelf: 'flex-end',
   },
   // markdown 基础样式承载容器的字体尺寸保持与气泡一致
@@ -2316,17 +2323,17 @@ const styles = StyleSheet.create({
   choiceButton: {
     backgroundColor: 'rgba(255,255,255,0.9)',
     borderWidth: 1,
-    borderColor: 'rgba(187,242,70,0.3)',
+    borderColor: `${Colors.light.accentGreen}4D`, // 30% opacity
     borderRadius: 12,
     padding: 12,
   },
   choiceButtonRecommended: {
-    borderColor: 'rgba(187,242,70,0.6)',
+    borderColor: `${Colors.light.accentGreen}99`, // 60% opacity
-    backgroundColor: 'rgba(187,242,70,0.1)',
+    backgroundColor: `${Colors.light.accentGreen}1A`, // 10% opacity
   },
   choiceButtonSelected: {
-    borderColor: '#2D5016',
+    borderColor: Colors.light.accentGreenDark,
-    backgroundColor: 'rgba(187,242,70,0.2)',
+    backgroundColor: `${Colors.light.accentGreen}33`, // 20% opacity
     borderWidth: 2,
   },
   choiceButtonDisabled: {
@@ -2346,10 +2353,10 @@ const styles = StyleSheet.create({
     flex: 1,
   },
   choiceLabelRecommended: {
-    color: '#2D5016',
+    color: Colors.light.accentGreenDark,
   },
   choiceLabelSelected: {
-    color: '#2D5016',
+    color: Colors.light.accentGreenDark,
     fontWeight: '700',
   },
   choiceLabelDisabled: {
@@ -2361,7 +2368,7 @@ const styles = StyleSheet.create({
     gap: 8,
   },
   recommendedBadge: {
-    backgroundColor: 'rgba(187,242,70,0.8)',
+    backgroundColor: `${Colors.light.accentGreen}CC`, // 80% opacity
     borderRadius: 6,
     paddingHorizontal: 8,
     paddingVertical: 2,
@@ -2369,10 +2376,10 @@ const styles = StyleSheet.create({
   recommendedText: {
     fontSize: 12,
     fontWeight: '700',
-    color: '#2D5016',
+    color: Colors.light.accentGreenDark,
   },
   selectedBadge: {
-    backgroundColor: '#2D5016',
+    backgroundColor: Colors.light.accentGreenDark,
     borderRadius: 6,
     paddingHorizontal: 8,
     paddingVertical: 2,
@@ -2405,6 +2412,13 @@ const styles = StyleSheet.create({
     fontWeight: '600',
     color: '#FF4444',
   },
+  gradientBackground: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    top: 0,
+    bottom: 0,
+  },
 });
 
 const markdownStyles = {

app/(tabs)/personal.tsx

@@ -9,6 +9,7 @@ import { Ionicons } from '@expo/vector-icons';
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { useBottomTabBarHeight } from '@react-navigation/bottom-tabs';
 import { useFocusEffect } from '@react-navigation/native';
+import { LinearGradient } from 'expo-linear-gradient';
 import React, { useMemo, useState } from 'react';
 import { Alert, Image, Linking, SafeAreaView, ScrollView, StatusBar, StyleSheet, Switch, Text, TouchableOpacity, View } from 'react-native';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
@@ -287,11 +288,17 @@ export default function PersonalScreen() {
   ];
 
   return (
-    <View style={[styles.container, { backgroundColor: theme === 'light' ? colorTokens.pageBackgroundEmphasis : colorTokens.background }]}>
+    <View style={styles.container}>
+      <LinearGradient
+        colors={[colors.backgroundGradientStart, colors.backgroundGradientEnd]}
+        style={styles.gradientBackground}
+        start={{ x: 0, y: 0 }}
+        end={{ x: 0, y: 1 }}
+      />
       <StatusBar barStyle={'dark-content'} backgroundColor="transparent" translucent />
-      <SafeAreaView style={[styles.safeArea, { backgroundColor: theme === 'light' ? colorTokens.pageBackgroundEmphasis : colorTokens.background }]}>
+      <SafeAreaView style={styles.safeArea}>
         <ScrollView
-          style={[styles.scrollView, { backgroundColor: theme === 'light' ? colorTokens.pageBackgroundEmphasis : colorTokens.background }]}
+          style={styles.scrollView}
           contentContainerStyle={{ paddingBottom: bottomPadding }}
           showsVerticalScrollIndicator={false}
         >
@@ -311,6 +318,13 @@ const styles = StyleSheet.create({
   container: {
     flex: 1,
   },
+  gradientBackground: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    top: 0,
+    bottom: 0,
+  },
   safeArea: {
     flex: 1,
   },

app/(tabs)/statistics.tsx

@@ -3,6 +3,7 @@ import { BMICard } from '@/components/BMICard';
 import { CircularRing } from '@/components/CircularRing';
 import { NutritionRadarCard } from '@/components/NutritionRadarCard';
 import { ProgressBar } from '@/components/ProgressBar';
+import { StressAnalysisModal } from '@/components/StressAnalysisModal';
 import { StressMeter } from '@/components/StressMeter';
 import { WeightHistoryCard } from '@/components/WeightHistoryCard';
 import { Colors } from '@/constants/Colors';
@@ -17,6 +18,7 @@ import { Ionicons } from '@expo/vector-icons';
 import { useBottomTabBarHeight } from '@react-navigation/bottom-tabs';
 import { useFocusEffect } from '@react-navigation/native';
 import dayjs from 'dayjs';
+import { LinearGradient } from 'expo-linear-gradient';
 import React, { useEffect, useMemo, useRef, useState } from 'react';
 import {
   SafeAreaView,
@@ -85,6 +87,9 @@ export default function ExploreScreen() {
   const [nutritionSummary, setNutritionSummary] = useState<NutritionSummary | null>(null);
   const [isNutritionLoading, setIsNutritionLoading] = useState(false);
 
+  // 压力分析浮窗状态
+  const [showStressModal, setShowStressModal] = useState(false);
+
   // 记录最近一次请求的“日期键”，避免旧请求覆盖新结果
   const latestRequestKeyRef = useRef<string | null>(null);
 
@@ -110,7 +115,7 @@ export default function ExploreScreen() {
       } else {
         derivedDate = days[selectedIndex]?.date?.toDate() ?? new Date();
       }
-      
+
       const requestKey = getDateKey(derivedDate);
       latestRequestKeyRef.current = requestKey;
 
@@ -204,10 +209,28 @@ export default function ExploreScreen() {
     }
   };
 
+  // 处理压力卡片点击
+  const handleStressCardPress = () => {
+    setShowStressModal(true);
+  };
+
+  // 关闭压力分析浮窗
+  const handleCloseStressModal = () => {
+    setShowStressModal(false);
+  };
+
+  // 使用统一的渐变背景色
+  const backgroundGradientColors = [colorTokens.backgroundGradientStart, colorTokens.backgroundGradientEnd] as const;
 
   return (
-    <View style={[styles.container, { backgroundColor: theme === 'light' ? colorTokens.pageBackgroundEmphasis : colorTokens.background }]}>
+    <View style={styles.container}>
-      <SafeAreaView style={[styles.safeArea, { backgroundColor: theme === 'light' ? colorTokens.pageBackgroundEmphasis : colorTokens.background }]}>
+      <LinearGradient
+        colors={backgroundGradientColors}
+        style={styles.gradientBackground}
+        start={{ x: 0, y: 0 }}
+        end={{ x: 0, y: 1 }}
+      />
+      <SafeAreaView style={styles.safeArea}>
         <ScrollView
           style={styles.scrollView}
           contentContainerStyle={{ paddingBottom: bottomPadding }}
@@ -253,12 +276,13 @@ export default function ExploreScreen() {
           <View style={styles.masonryContainer}>
             {/* 左列 */}
             <View style={styles.masonryColumn}>
-              <StressMeter 
+              <StressMeter
-                value={hrvValue} 
+                value={hrvValue}
                 updateTime={hrvUpdateTime}
                 style={styles.masonryCard}
+                onPress={handleStressCardPress}
               />
-              
+
               <View style={[styles.masonryCard, styles.caloriesCard]}>
                 <Text style={styles.cardTitleSecondary}>消耗卡路里</Text>
                 {activeCalories != null ? (
@@ -306,20 +330,20 @@ export default function ExploreScreen() {
                 weight={userProfile?.weight ? parseFloat(userProfile.weight) : undefined}
                 height={userProfile?.height ? parseFloat(userProfile.height) : undefined}
                 style={styles.masonryCardNoBg}
-                compact={true}
+              // compact={true}
               />
 
               <View style={[styles.masonryCard, styles.trainingCard]}>
                 <Text style={styles.cardTitleSecondary}>训练时间</Text>
                 <View style={styles.trainingContent}>
-                                      <CircularRing
+                  <CircularRing
-                      size={120}
+                    size={120}
-                      strokeWidth={12}
+                    strokeWidth={12}
-                      trackColor="#E2D9FD"
+                    trackColor="#E2D9FD"
-                      progressColor="#8B74F3"
+                    progressColor="#8B74F3"
-                      progress={trainingProgress}
+                    progress={trainingProgress}
-                      resetToken={animToken}
+                    resetToken={animToken}
-                    />
+                  />
                 </View>
               </View>
 
@@ -347,16 +371,32 @@ export default function ExploreScreen() {
 
         </ScrollView>
       </SafeAreaView>
+
+      {/* 压力分析浮窗 */}
+      <StressAnalysisModal
+        visible={showStressModal}
+        onClose={handleCloseStressModal}
+        hrvValue={hrvValue}
+        updateTime={hrvUpdateTime}
+      />
     </View>
   );
 }
 
 const primary = Colors.light.primary;
+const lightColors = Colors.light;
+const darkColors = Colors.dark;
 
 const styles = StyleSheet.create({
   container: {
     flex: 1,
-    backgroundColor: '#F6F7F8',
+  },
+  gradientBackground: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    top: 0,
+    bottom: 0,
   },
   safeArea: {
     flex: 1,
@@ -388,10 +428,10 @@ const styles = StyleSheet.create({
     justifyContent: 'center',
   },
   dayPillNormal: {
-    backgroundColor: '#C8F852',
+    backgroundColor: lightColors.datePickerNormal,
   },
   dayPillSelected: {
-    backgroundColor: '#192126',
+    backgroundColor: lightColors.datePickerSelected,
   },
   dayLabel: {
     fontSize: 16,
@@ -414,7 +454,7 @@ const styles = StyleSheet.create({
     width: 8,
     height: 8,
     borderRadius: 4,
-    backgroundColor: '#192126',
+    backgroundColor: lightColors.datePickerSelected,
     marginTop: 10,
     marginBottom: 4,
     alignSelf: 'center',

app/ai-posture-assessment.tsx

@@ -341,7 +341,7 @@ function UploadTile({
       >
         {uploading ? (
           <View style={[styles.placeholder, { backgroundColor: '#f5f5f5' }]}>
-            <ActivityIndicator size="large" color="#BBF246" />
+            <ActivityIndicator size="large" color={Colors.light.accentGreen} />
             <Text style={styles.placeholderTitle}>上传中...</Text>
           </View>
         ) : value ? (
@@ -349,7 +349,7 @@ function UploadTile({
         ) : (
           <View style={styles.placeholder}>
             <View style={styles.plusBadge}>
-              <Ionicons name="camera" size={16} color="#BBF246" />
+              <Ionicons name="camera" size={16} color={Colors.light.accentGreen} />
             </View>
             <Text style={styles.placeholderTitle}>拍摄或选择照片</Text>
             <Text style={styles.placeholderDesc}>点击拍摄，长按从相册选择</Text>
@@ -415,7 +415,7 @@ const styles = StyleSheet.create({
     paddingHorizontal: 14,
     height: 40,
     borderRadius: 12,
-    backgroundColor: '#BBF246',
+    backgroundColor: Colors.light.accentGreen,
   },
   permPrimaryText: {
     color: '#192126',
@@ -518,7 +518,7 @@ const styles = StyleSheet.create({
     justifyContent: 'center',
     backgroundColor: '#FFFFFF',
     borderWidth: 2,
-    borderColor: '#BBF246',
+    borderColor: Colors.light.accentGreen,
   },
   placeholderTitle: {
     color: '#192126',

app/ai-posture-processing.tsx

@@ -166,7 +166,7 @@ const styles = StyleSheet.create({
     borderRadius: INNER_RING_SIZE / 2,
     borderWidth: 2,
     borderColor: 'rgba(187,242,70,0.65)',
-    shadowColor: '#BBF246',
+    shadowColor: Colors.light.accentGreen,
     shadowOffset: { width: 0, height: 0 },
     shadowOpacity: 0.35,
     shadowRadius: 24,
@@ -207,8 +207,8 @@ const styles = StyleSheet.create({
     width: 14,
     height: 14,
     borderRadius: 7,
-    backgroundColor: '#BBF246',
+    backgroundColor: Colors.light.accentGreen,
-    shadowColor: '#BBF246',
+    shadowColor: Colors.light.accentGreen,
     shadowOffset: { width: 0, height: 0 },
     shadowOpacity: 0.4,
     shadowRadius: 16,

app/challenge/day.tsx

@@ -1,4 +1,5 @@
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { Colors } from '@/constants/Colors';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { completeDay, setCustom } from '@/store/challengeSlice';
 import type { Exercise, ExerciseCustomConfig } from '@/utils/pilatesPlan';
@@ -158,7 +159,7 @@ const styles = StyleSheet.create({
   counterValue: { minWidth: 40, textAlign: 'center', fontWeight: '700', color: '#111827' },
   setPill: { paddingHorizontal: 10, paddingVertical: 6, borderRadius: 999 },
   setPillTodo: { backgroundColor: '#F3F4F6' },
-  setPillDone: { backgroundColor: '#BBF246' },
+  setPillDone: { backgroundColor: Colors.light.accentGreen },
   setPillText: { fontSize: 12, fontWeight: '700' },
   setPillTextTodo: { color: '#6B7280' },
   setPillTextDone: { color: '#192126' },
@@ -167,7 +168,7 @@ const styles = StyleSheet.create({
   tipsBox: { marginTop: 10, backgroundColor: '#F9FAFB', borderRadius: 8, padding: 10 },
   tipText: { fontSize: 12, color: '#6B7280', lineHeight: 18 },
   bottomBar: { position: 'absolute', left: 0, right: 0, bottom: 0, padding: 20, backgroundColor: 'transparent' },
-  finishBtn: { backgroundColor: '#BBF246', paddingVertical: 14, borderRadius: 999, alignItems: 'center' },
+  finishBtn: { backgroundColor: Colors.light.accentGreen, paddingVertical: 14, borderRadius: 999, alignItems: 'center' },
   finishBtnText: { color: '#192126', fontWeight: '800', fontSize: 16 },
 });
 

app/challenge/index.tsx

@@ -1,4 +1,5 @@
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { Colors } from '@/constants/Colors';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { initChallenge } from '@/store/challengeSlice';
@@ -113,7 +114,7 @@ const styles = StyleSheet.create({
   },
   summaryLeft: { flexDirection: 'row', alignItems: 'center' },
   progressPill: { width: 120, height: 10, borderRadius: 999, backgroundColor: '#E5E7EB', overflow: 'hidden' },
-  progressFill: { height: '100%', backgroundColor: '#BBF246' },
+  progressFill: { height: '100%', backgroundColor: Colors.light.accentGreen },
   progressText: { marginLeft: 12, fontWeight: '700', color: '#111827' },
   summaryRight: {},
   summaryItem: { fontSize: 12, color: '#6B7280' },
@@ -133,7 +134,7 @@ const styles = StyleSheet.create({
   dayNumberLocked: { color: '#9CA3AF' },
   dayMinutes: { marginTop: 4, fontSize: 12, color: '#6B7280' },
   bottomBar: { padding: 20 },
-  startButton: { backgroundColor: '#BBF246', paddingVertical: 14, borderRadius: 999, alignItems: 'center' },
+  startButton: { backgroundColor: Colors.light.accentGreen, paddingVertical: 14, borderRadius: 999, alignItems: 'center' },
   startButtonText: { color: '#192126', fontWeight: '800', fontSize: 16 },
 });
 

app/training-plan.tsx

@@ -178,7 +178,7 @@ function PlanCard({ plan, onPress, onDelete, onActivate, onSchedule, isActive, i
           </Pressable>
           <Pressable style={[styles.metricItem, isActive && styles.metricActive]} onPress={onActivate} hitSlop={8}>
             <Ionicons name={isActive ? 'checkmark-done-circle-outline' : 'flash-outline'} size={22} color="#E6EEF2" />
-            <Text style={[styles.metricText, { color: isActive ? '#BBF246' : '#E6EEF2' }]}>{isActive ? '已激活' : '激活'}</Text>
+            <Text style={[styles.metricText, { color: isActive ? Colors.light.accentGreen : '#E6EEF2' }]}>{isActive ? '已激活' : '激活'}</Text>
           </Pressable>
           <Pressable style={styles.metricItem} onPress={() => {
             Alert.alert('确认删除', '确定要删除这个训练计划吗？此操作无法撤销。', [

components/BMICard.tsx

@@ -1,20 +1,21 @@
+import { Colors } from '@/constants/Colors';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
 import {
-    BMI_CATEGORIES,
+  BMI_CATEGORIES,
-    canCalculateBMI,
+  canCalculateBMI,
-    getBMIResult,
+  getBMIResult,
-    type BMIResult
+  type BMIResult
 } from '@/utils/bmi';
 import { Ionicons } from '@expo/vector-icons';
 import React, { useState } from 'react';
 import {
-    Dimensions,
+  Dimensions,
-    Modal,
+  Modal,
-    Pressable,
+  Pressable,
-    StyleSheet,
+  StyleSheet,
-    Text,
+  Text,
-    TouchableOpacity,
+  TouchableOpacity,
-    View
+  View
 } from 'react-native';
 import Toast from 'react-native-toast-message';
 
@@ -62,7 +63,7 @@ export function BMICard({ weight, height, style, compact = false }: BMICardProps
     if (!canCalculate) {
       // 缺少数据的情况
       return (
-        <TouchableOpacity 
+        <TouchableOpacity
           style={[styles.incompleteContent, compact && styles.compactIncompleteContent]}
           onPress={handleShowInfoModal}
           activeOpacity={0.8}
@@ -118,8 +119,8 @@ export function BMICard({ weight, height, style, compact = false }: BMICardProps
 
     // 有完整数据的情况
     return (
-      <TouchableOpacity 
+      <TouchableOpacity
-        style={[styles.completeContent, { backgroundColor: bmiResult?.backgroundColor }, compact && styles.compactCompleteContent]}
+        style={styles.completeContent}
         onPress={handleShowInfoModal}
         activeOpacity={0.8}
       >
@@ -193,7 +194,7 @@ export function BMICard({ weight, height, style, compact = false }: BMICardProps
           style={styles.modalBackdrop}
           onPress={handleHideInfoModal}
         >
-          <Pressable 
+          <Pressable
             style={styles.modalContainer}
             onPress={(e) => e.stopPropagation()}
           >
@@ -234,7 +235,7 @@ export function BMICard({ weight, height, style, compact = false }: BMICardProps
                 <View style={styles.categoriesGrid}>
                   {BMI_CATEGORIES.map((category, index) => {
                     const colors = index === 0 ? { bg: '#FEF3C7', text: '#B45309' } :
-                      index === 1 ? { bg: '#E8F5E8', text: '#2D5016' } :
+                      index === 1 ? { bg: '#E8F5E8', text: Colors.light.accentGreenDark } :
                         index === 2 ? { bg: '#FEF3C7', text: '#B45309' } :
                           { bg: '#FEE2E2', text: '#B91C1C' };
 
@@ -289,6 +290,7 @@ const styles = StyleSheet.create({
     padding: 18,
     marginBottom: 16,
     overflow: 'hidden',
+    backgroundColor: '#FFFFFF',
   },
   cardHeader: {
     flexDirection: 'row',
@@ -320,7 +322,7 @@ const styles = StyleSheet.create({
 
   // 缺少数据时的样式
   incompleteContent: {
-    minHeight: 120,
+    minHeight: 80,
     backgroundColor: '#FFFFFF',
     borderRadius: 22,
     padding: 18,
@@ -345,7 +347,7 @@ const styles = StyleSheet.create({
     flexDirection: 'row',
     alignItems: 'center',
     justifyContent: 'center',
-    backgroundColor: '#F3F4F6',
+    backgroundColor: '#ffffff',
     borderRadius: 12,
     paddingVertical: 12,
     paddingHorizontal: 16,
@@ -359,7 +361,7 @@ const styles = StyleSheet.create({
 
   // 有完整数据时的样式
   completeContent: {
-    minHeight: 120,
+    minHeight: 80,
     borderRadius: 22,
     padding: 18,
     margin: -18,
@@ -398,12 +400,12 @@ const styles = StyleSheet.create({
 
   // 紧凑模式样式
   compactIncompleteContent: {
-    minHeight: 110,
+    minHeight: 80,
     padding: 14,
     margin: -14,
   },
   compactCompleteContent: {
-    minHeight: 110,
+    minHeight: 80,
     padding: 14,
     margin: -14,
   },
@@ -427,7 +429,7 @@ const styles = StyleSheet.create({
     flex: 1,
   },
   compactBMIValue: {
-    fontSize: 28,
+    fontSize: 24,
     fontWeight: '800',
     marginBottom: 4,
   },
@@ -491,13 +493,13 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     justifyContent: 'center',
   },
-  
+
   // 内容区域样式
   modalContent: {
     paddingHorizontal: 20,
     paddingBottom: 24,
   },
-  
+
   // 介绍部分
   introSection: {
     marginBottom: 20,
@@ -522,7 +524,7 @@ const styles = StyleSheet.create({
     fontWeight: '600',
     textAlign: 'center',
   },
-  
+
   // 分类部分
   categoriesSection: {
     marginBottom: 18,
@@ -567,7 +569,7 @@ const styles = StyleSheet.create({
     fontWeight: '500',
     opacity: 0.9,
   },
-  
+
   // 健康提示
   healthTips: {
     backgroundColor: '#F9FAFB',
@@ -593,7 +595,7 @@ const styles = StyleSheet.create({
     color: '#374151',
     lineHeight: 18,
   },
-  
+
   // 免责声明紧凑版
   disclaimerCompact: {
     flexDirection: 'row',

components/ProgressBar.tsx

@@ -1,3 +1,4 @@
+import { Colors } from '@/constants/Colors';
 import React, { memo, useEffect, useMemo, useRef, useState } from 'react';
 import { Animated, Easing, LayoutChangeEvent, StyleSheet, Text, View, ViewStyle } from 'react-native';
 
@@ -16,7 +17,7 @@ function ProgressBarImpl({
   height = 18,
   style,
   trackColor = '#EDEDED',
-  fillColor = '#BBF246',
+  fillColor = Colors.light.accentGreen,
   animated = true,
   showLabel = true,
 }: ProgressBarProps) {

components/RadarChart.tsx

@@ -1,3 +1,4 @@
+import { Colors } from '@/constants/Colors';
 import React, { useMemo } from 'react';
 import { StyleSheet, View } from 'react-native';
 import Svg, * as SvgLib from 'react-native-svg';
@@ -102,7 +103,7 @@ export function RadarChart({
       <Svg width={actualSize} height={actualSize}>
         <SvgLib.Defs>
           <SvgLib.LinearGradient id="radarFill" x1="0" y1="0" x2="1" y2="1">
-            <SvgLib.Stop offset="0%" stopColor="#BBF246" stopOpacity={0.32} />
+            <SvgLib.Stop offset="0%" stopColor={Colors.light.accentGreen} stopOpacity={0.32} />
             <SvgLib.Stop offset="100%" stopColor="#59C6FF" stopOpacity={0.28} />
           </SvgLib.LinearGradient>
         </SvgLib.Defs>

components/StressAnalysisModal.tsx

@@ -0,0 +1,267 @@
+import { Colors } from '@/constants/Colors';
+import { useColorScheme } from '@/hooks/useColorScheme';
+import { LinearGradient } from 'expo-linear-gradient';
+import React from 'react';
+import {
+  Modal,
+  ScrollView,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  View
+} from 'react-native';
+
+interface StressAnalysisModalProps {
+  visible: boolean;
+  onClose: () => void;
+  hrvValue: number;
+  updateTime: Date;
+}
+
+export function StressAnalysisModal({ visible, onClose, hrvValue, updateTime }: StressAnalysisModalProps) {
+  const colorScheme = useColorScheme();
+  const colors = Colors[colorScheme ?? 'light'];
+
+  // 模拟30天HRV数据
+  const hrvData = {
+    goodEvents: { percentage: 26, count: 53, range: '>80毫秒' },
+    energetic: { percentage: 47, count: 97, range: '43-80毫秒' },
+    stressed: { percentage: 27, count: 56, range: '<43毫秒' },
+  };
+
+
+
+  return (
+    <Modal
+      visible={visible}
+      animationType="slide"
+      presentationStyle="pageSheet"
+      onRequestClose={onClose}
+    >
+      <LinearGradient
+        colors={[colors.backgroundGradientStart, colors.backgroundGradientEnd]}
+        style={styles.modalContainer}
+        start={{ x: 0, y: 0 }}
+        end={{ x: 0, y: 1 }}
+      >
+        <ScrollView style={styles.content} showsVerticalScrollIndicator={false}>
+          {/* 标题 */}
+          <Text style={styles.title}>压力情况分析</Text>
+
+
+          {/* 最近30天HRV情况 */}
+          <Text style={styles.sectionTitle}>最近30天HRV情况</Text>
+
+          {/* 彩色横条图 */}
+          <View style={styles.chartContainer}>
+            <View style={styles.colorBar}>
+              <LinearGradient
+                colors={['#10B981', '#3B82F6', '#F59E0B']}
+                start={{ x: 0, y: 0 }}
+                end={{ x: 1, y: 0 }}
+                style={styles.gradientBar}
+              />
+            </View>
+            <View style={styles.legend}>
+              <View style={styles.legendItem}>
+                <View style={[styles.legendDot, { backgroundColor: '#10B981' }]} />
+                <Text style={styles.legendText}>好事发生</Text>
+              </View>
+              <View style={styles.legendItem}>
+                <View style={[styles.legendDot, { backgroundColor: '#3B82F6' }]} />
+                <Text style={styles.legendText}>活力满满</Text>
+              </View>
+              <View style={styles.legendItem}>
+                <View style={[styles.legendDot, { backgroundColor: '#F59E0B' }]} />
+                <Text style={styles.legendText}>鸭梨山大</Text>
+              </View>
+            </View>
+          </View>
+
+          {/* 数据统计卡片 */}
+          <View style={styles.statsCard}>
+            {/* 好事发生 & 活力满满 */}
+            <View style={styles.statsRow}>
+              <View style={styles.statItem}>
+                <Text style={[styles.statTitle, { color: '#10B981' }]}>好事发生</Text>
+                <Text style={styles.statPercentage}>{hrvData.goodEvents.percentage}%</Text>
+                <View style={styles.statDetails}>
+                  <Text style={styles.statRange}>❤️ {hrvData.goodEvents.range}</Text>
+                </View>
+                <Text style={styles.statCount}>{hrvData.goodEvents.count}次</Text>
+              </View>
+
+              <View style={styles.statItem}>
+                <Text style={[styles.statTitle, { color: '#3B82F6' }]}>活力满满</Text>
+                <Text style={styles.statPercentage}>{hrvData.energetic.percentage}%</Text>
+                <View style={styles.statDetails}>
+                  <Text style={styles.statRange}>❤️ {hrvData.energetic.range}</Text>
+                </View>
+                <Text style={styles.statCount}>{hrvData.energetic.count}次</Text>
+              </View>
+            </View>
+
+            {/* 鸭梨山大 */}
+            <View style={styles.statItem}>
+              <Text style={[styles.statTitle, { color: '#F59E0B' }]}>鸭梨山大</Text>
+              <Text style={styles.statPercentage}>{hrvData.stressed.percentage}%</Text>
+              <View style={styles.statDetails}>
+                <Text style={styles.statRange}>❤️ {hrvData.stressed.range}</Text>
+              </View>
+              <Text style={styles.statCount}>{hrvData.stressed.count}次</Text>
+            </View>
+          </View>
+        </ScrollView>
+
+        {/* 底部继续按钮 */}
+        <View style={styles.bottomContainer}>
+          <TouchableOpacity style={styles.continueButton} onPress={onClose}>
+            <View style={styles.buttonBackground}>
+              <Text style={styles.buttonText}>继续</Text>
+            </View>
+          </TouchableOpacity>
+          <View style={styles.homeIndicator} />
+        </View>
+      </LinearGradient>
+    </Modal>
+  );
+}
+
+const styles = StyleSheet.create({
+  modalContainer: {
+    flex: 1,
+  },
+  content: {
+    flex: 1,
+    paddingHorizontal: 20,
+  },
+  title: {
+    fontSize: 24,
+    fontWeight: '800',
+    color: '#111827',
+    textAlign: 'center',
+    marginTop: 20,
+    marginBottom: 32,
+  },
+
+  sectionTitle: {
+    fontSize: 22,
+    fontWeight: '800',
+    color: '#111827',
+    marginBottom: 20,
+  },
+  chartContainer: {
+    marginBottom: 32,
+  },
+  colorBar: {
+    height: 16,
+    borderRadius: 8,
+    overflow: 'hidden',
+    marginBottom: 16,
+  },
+  gradientBar: {
+    flex: 1,
+  },
+  legend: {
+    flexDirection: 'row',
+    justifyContent: 'space-around',
+  },
+  legendItem: {
+    flexDirection: 'row',
+    alignItems: 'center',
+  },
+  legendDot: {
+    width: 12,
+    height: 12,
+    borderRadius: 6,
+    marginRight: 6,
+  },
+  legendText: {
+    fontSize: 14,
+    fontWeight: '600',
+    color: '#374151',
+  },
+  statsCard: {
+    backgroundColor: '#FFFFFF',
+    borderRadius: 16,
+    padding: 20,
+    marginBottom: 32,
+    shadowColor: '#000',
+    shadowOffset: {
+      width: 0,
+      height: 2,
+    },
+    shadowOpacity: 0.05,
+    shadowRadius: 8,
+    elevation: 2,
+  },
+  statsRow: {
+    flexDirection: 'row',
+    gap: 20,
+    marginBottom: 24,
+  },
+  statItem: {
+    flex: 1,
+  },
+  statTitle: {
+    fontSize: 16,
+    fontWeight: '700',
+    marginBottom: 8,
+  },
+  statPercentage: {
+    fontSize: 36,
+    fontWeight: '800',
+    color: '#111827',
+    marginBottom: 4,
+  },
+  statDetails: {
+    marginBottom: 4,
+  },
+  statRange: {
+    fontSize: 14,
+    fontWeight: '600',
+    color: '#DC2626',
+    backgroundColor: '#FEE2E2',
+    paddingHorizontal: 8,
+    paddingVertical: 3,
+    borderRadius: 10,
+    alignSelf: 'flex-start',
+  },
+  statCount: {
+    fontSize: 16,
+    fontWeight: '600',
+    color: '#6B7280',
+  },
+  bottomContainer: {
+    paddingHorizontal: 20,
+    paddingBottom: 34,
+  },
+  continueButton: {
+    borderRadius: 25,
+    overflow: 'hidden',
+    marginBottom: 8,
+  },
+  buttonGradient: {
+    paddingVertical: 18,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  buttonBackground: {
+    backgroundColor: Colors.light.accentGreen, // 应用主色调
+    paddingVertical: 18,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  buttonText: {
+    fontSize: 18,
+    fontWeight: '700',
+    color: '#192126', // 主色调上的文字颜色
+  },
+  homeIndicator: {
+    width: 134,
+    height: 5,
+    backgroundColor: '#000',
+    borderRadius: 3,
+    alignSelf: 'center',
+  },
+});

components/StressMeter.tsx

@@ -1,25 +1,27 @@
 import { Ionicons } from '@expo/vector-icons';
 import { LinearGradient } from 'expo-linear-gradient';
 import React from 'react';
-import { StyleSheet, Text, View } from 'react-native';
+import { StyleSheet, Text, TouchableOpacity, View } from 'react-native';
 
 interface StressMeterProps {
-  value: number;
+  value: number | null;
   updateTime?: Date;
   style?: any;
+  onPress?: () => void;
 }
 
-export function StressMeter({ value, updateTime, style }: StressMeterProps) {
+export function StressMeter({ value, updateTime, style, onPress }: StressMeterProps) {
-  
+  // 将HRV值转换为压力指数（0-100）
-  // 计算进度条位置（0-100%）
+  // HRV值范围：30-110ms，映射到压力指数100-0
-  // HRV值范围：30-110ms，对应进度条0-100%
+  // HRV值越高，压力越小；HRV值越低，压力越大
-  const progressPercentage = Math.min(100, Math.max(0, ((value - 30) / 80) * 100));
+  const stressIndex = value ? Math.round(Math.min(100, Math.max(0, 100 - ((value - 30) / 80) * 100))) : null;
-
+  // 根据压力指数计算状态
-  // 根据HRV值计算状态
+  const getStressStatus = () => {
-  const getHrvStatus = () => {
+    if (stressIndex === null) {
-    if (value >= 70) {
+      return '未知';
+    } else if (stressIndex <= 30) {
       return '放松';
-    } else if (value >= 50) {
+    } else if (stressIndex <= 70) {
       return '正常';
     } else {
       return '紧张';
@@ -28,13 +30,14 @@ export function StressMeter({ value, updateTime, style }: StressMeterProps) {
 
   // 根据状态获取表情
   const getStatusEmoji = () => {
-    // 当HRV值为0时，不展示表情
+    // 当HRV值为null或0时，不展示表情
-    if (value === 0) {
+    if (value === null || value === 0) {
       return '';
     }
-    
+
-    const status = getHrvStatus();
+    const status = getStressStatus();
     switch (status) {
+      case '未知': return '';
       case '放松': return '😌';
       case '正常': return '😊';
       case '紧张': return '😰';
@@ -42,24 +45,18 @@ export function StressMeter({ value, updateTime, style }: StressMeterProps) {
     }
   };
 
-  // 格式化更新时间
+  // 计算进度条位置（0-100%）
-  const formatUpdateTime = (date?: Date) => {
+  // 压力指数越高，进度条越满
-    if (!date) return '';
+  const progressPercentage = stressIndex === null ? 0 : stressIndex;
-    const hours = date.getHours().toString().padStart(2, '0');
+
-    const minutes = date.getMinutes().toString().padStart(2, '0');
-    return `${hours}:${minutes}`;
-  };
 
   return (
-    <View style={[styles.container, style]}>
+    <TouchableOpacity
-      {/* 渐变背景 */}
+      style={[styles.container, style]}
-      <LinearGradient
+      onPress={onPress}
-        colors={['#F8F9FF', '#F0F4FF']}
+      activeOpacity={0.8}
-        start={{ x: 0, y: 0 }}
+    >
-        end={{ x: 1, y: 1 }}
+
-        style={styles.gradientBackground}
-      />
-      
       {/* 头部区域 */}
       <View style={styles.header}>
         <View style={styles.leftSection}>
@@ -73,30 +70,32 @@ export function StressMeter({ value, updateTime, style }: StressMeterProps) {
 
       {/* 数值显示区域 */}
       <View style={styles.valueSection}>
-        <Text style={styles.value}>{value}</Text>
+        <Text style={styles.value}>{stressIndex === null ? '--' : stressIndex}</Text>
-        <Text style={styles.unit}>毫秒</Text>
+        <Text style={styles.unit}>指数</Text>
       </View>
 
       {/* 进度条区域 */}
       <View style={styles.progressContainer}>
         <View style={styles.progressTrack}>
           {/* 渐变背景进度条 */}
-          <LinearGradient
+          <View style={[styles.progressBar, { width: `${progressPercentage}%` }]}>
-            colors={['#FFD700', '#87CEEB', '#98FB98']}
+            <LinearGradient
-            start={{ x: 0, y: 0 }}
+              colors={['#10B981', '#FCD34D', '#F97316']}
-            end={{ x: 1, y: 0 }}
+              start={{ x: 0, y: 0 }}
-            style={styles.gradientTrack}
+              end={{ x: 1, y: 0 }}
-          />
+              style={styles.gradientBar}
+            />
+          </View>
           {/* 白色圆形指示器 */}
           <View style={[styles.indicator, { left: `${Math.max(0, Math.min(100, progressPercentage - 2))}%` }]} />
         </View>
       </View>
 
-      {/* 更新时间 */}
+      {/* 更新时间
       {updateTime && (
         <Text style={styles.updateTime}>{formatUpdateTime(updateTime)}</Text>
-      )}
+      )} */}
-    </View>
+    </TouchableOpacity>
   );
 }
 
@@ -181,7 +180,12 @@ const styles = StyleSheet.create({
     position: 'relative',
     overflow: 'visible',
   },
-  gradientTrack: {
+  progressBar: {
+    height: '100%',
+    borderRadius: 4,
+    overflow: 'hidden',
+  },
+  gradientBar: {
     height: '100%',
     borderRadius: 4,
   },

components/WeightHistoryCard.tsx

@@ -1,3 +1,4 @@
+import { Colors } from '@/constants/Colors';
 import { ROUTES } from '@/constants/Routes';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
@@ -20,11 +21,6 @@ const CHART_WIDTH = CARD_WIDTH - 36; // 减去卡片内边距
 const CHART_HEIGHT = 100;
 const PADDING = 10;
 
-type WeightHistoryItem = {
-  weight: string;
-  source: string;
-  createdAt: string;
-};
 
 export function WeightHistoryCard() {
   const dispatch = useAppDispatch();
@@ -177,7 +173,7 @@ export function WeightHistoryCard() {
             <Ionicons
               name={showChart ? "chevron-up" : "chevron-down"}
               size={16}
-              color="#BBF246"
+              color={Colors.light.primary}
             />
           </TouchableOpacity>
           <TouchableOpacity
@@ -185,7 +181,7 @@ export function WeightHistoryCard() {
             onPress={navigateToCoach}
             activeOpacity={0.8}
           >
-            <Ionicons name="add" size={16} color="#BBF246" />
+            <Ionicons name="add" size={16} color={Colors.light.primary} />
           </TouchableOpacity>
         </View>
       </View>
@@ -209,14 +205,6 @@ export function WeightHistoryCard() {
               </Text>
             </View>
           </View>
-          <TouchableOpacity
-            style={styles.viewTrendButton}
-            onPress={() => setShowChart(true)}
-            activeOpacity={0.8}
-          >
-            <Ionicons name="trending-up" size={14} color="#BBF246" />
-            <Text style={styles.viewTrendText}>查看趋势图</Text>
-          </TouchableOpacity>
         </View>
       )}
 
@@ -240,7 +228,7 @@ export function WeightHistoryCard() {
             {/* 折线 */}
             <Path
               d={singlePointPath}
-              stroke="#BBF246"
+              stroke={Colors.light.accentGreen}
               strokeWidth={3}
               fill="none"
               strokeLinecap="round"
@@ -259,7 +247,7 @@ export function WeightHistoryCard() {
                     cx={point.x}
                     cy={point.y}
                     r={isLastPoint ? 6 : 4}
-                    fill="#BBF246"
+                    fill={Colors.light.accentGreen}
                     stroke="#FFFFFF"
                     strokeWidth={2}
                   />
@@ -271,7 +259,7 @@ export function WeightHistoryCard() {
                         cy={point.y - 15}
                         r={10}
                         fill="rgba(255,255,255,0.9)"
-                        stroke="#BBF246"
+                        stroke={Colors.light.accentGreen}
                         strokeWidth={1}
                       />
                       <SvgText
@@ -343,7 +331,6 @@ const styles = StyleSheet.create({
     width: 30,
     height: 30,
     borderRadius: 8,
-    backgroundColor: '#F0F8E0',
     alignItems: 'center',
     justifyContent: 'center',
     marginRight: 10,
@@ -363,7 +350,6 @@ const styles = StyleSheet.create({
     width: 28,
     height: 28,
     borderRadius: 14,
-    backgroundColor: '#F0F8E0',
     alignItems: 'center',
     justifyContent: 'center',
   },
@@ -371,7 +357,6 @@ const styles = StyleSheet.create({
     width: 28,
     height: 28,
     borderRadius: 14,
-    backgroundColor: '#F0F8E0',
     alignItems: 'center',
     justifyContent: 'center',
   },
@@ -394,7 +379,7 @@ const styles = StyleSheet.create({
   recordButton: {
     flexDirection: 'row',
     alignItems: 'center',
-    backgroundColor: '#BBF246',
+    backgroundColor: Colors.light.accentGreen,
     paddingHorizontal: 16,
     paddingVertical: 10,
     borderRadius: 20,
@@ -437,12 +422,11 @@ const styles = StyleSheet.create({
     marginTop: 8,
   },
   summaryInfo: {
-    paddingVertical: 12,
   },
   summaryRow: {
     flexDirection: 'row',
     justifyContent: 'space-around',
-    marginBottom: 12,
+    marginBottom: 6,
   },
   summaryItem: {
     alignItems: 'center',
@@ -457,20 +441,4 @@ const styles = StyleSheet.create({
     fontWeight: '700',
     color: '#192126',
   },
-  viewTrendButton: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    justifyContent: 'center',
-    backgroundColor: '#F0F8E0',
-    paddingHorizontal: 16,
-    paddingVertical: 8,
-    borderRadius: 16,
-    gap: 6,
-    alignSelf: 'center',
-  },
-  viewTrendText: {
-    fontSize: 13,
-    fontWeight: '600',
-    color: '#192126',
-  },
 });

components/ui/HeaderBar.tsx

@@ -42,7 +42,7 @@ export function HeaderBar({
       ]}
     >
       {onBack ? (
-        <TouchableOpacity accessibilityRole="button" onPress={onBack} style={[styles.backButton, { backgroundColor: 'rgba(187,242,70,0.2)' }]}>
+        <TouchableOpacity accessibilityRole="button" onPress={onBack} style={[styles.backButton, { backgroundColor: `${Colors.light.accentGreen}33` }]}>
           <Ionicons name="chevron-back" size={20} color={theme.onPrimary} />
         </TouchableOpacity>
       ) : (

constants/Colors.ts

@@ -6,7 +6,7 @@
 // 原子调色板（与设计图一致）
 export const palette = {
   // Primary
-  primary: '#BBF246',
+  primary: '#87CEEB',
   ink: '#192126',
 
   // Secondary / Neutrals
@@ -18,10 +18,11 @@ export const palette = {
   purple: '#A48AED',
   red: '#ED4747',
   orange: '#FCC46F',
-  blue: '#95CCE3',
+  blue: '#87CEEB',  // 更贴近logo背景的天空蓝
+  blueSecondary: '#4682B4',  // 钢蓝色，用于选中状态
 } as const;
 
-const primaryColor = palette.primary; // 应用主题色
+const primaryColor = palette.blue; // 应用主题色
 const tintColorLight = primaryColor;
 const tintColorDark = '#FFFFFF';
 
@@ -35,6 +36,8 @@ export const Colors = {
     surface: '#FFFFFF',
     card: '#FFFFFF',
 
+    buttonBackground: palette.blue,
+
     // 品牌与可交互主色
     tint: tintColorLight,
     primary: primaryColor,
@@ -51,6 +54,12 @@ export const Colors = {
     danger: palette.red,
     info: palette.blue,
     accentPurple: palette.purple,
+    accentGreen: palette.blue,
+    accentGreenDark: palette.blueSecondary, // 深绿色，用于文本和强调
+
+    // 日期选择器主题色
+    datePickerNormal: palette.blue,
+    datePickerSelected: palette.blueSecondary,
 
     // 结构色
     border: palette.neutral100 + '33', // 20% 透明度
@@ -64,10 +73,14 @@ export const Colors = {
     tabBarActiveBackground: primaryColor, // tab 激活时的背景色
 
     // 页面氛围与装饰（新）
-    pageBackgroundEmphasis: '#F9FBF2',
+    pageBackgroundEmphasis: '#F0F8FF',  // 淡蓝色背景强调
-    heroSurfaceTint: 'rgba(187,242,70,0.18)',
+    heroSurfaceTint: 'rgba(135,206,235,0.18)',  // 蓝色调的表面色彩
     ornamentPrimary: 'rgba(187,242,70,0.22)',
     ornamentAccent: 'rgba(164,138,237,0.16)',
+
+    // 统一背景渐变色（基于 StressAnalysisModal 的设计）
+    backgroundGradientStart: '#d3e9eeff',    // 浅蓝色起始 (与logo背景匹配)
+    backgroundGradientEnd: '#ffffff',      // 白色结束
   },
   dark: {
     // 基础文本/背景
@@ -94,6 +107,11 @@ export const Colors = {
     danger: palette.red,
     info: palette.blue,
     accentPurple: palette.purple,
+    accentGreenDark: '#2D5016', // 深绿色，用于文本和强调
+
+    // 日期选择器主题色
+    datePickerNormal: palette.blue,
+    datePickerSelected: palette.blueSecondary,
 
     // 结构色
     border: '#2A2F32',
@@ -111,5 +129,9 @@ export const Colors = {
     heroSurfaceTint: 'rgba(187,242,70,0.12)',
     ornamentPrimary: 'rgba(187,242,70,0.18)',
     ornamentAccent: 'rgba(164,138,237,0.14)',
+
+    // 统一背景渐变色（深色模式）
+    backgroundGradientStart: '#0A0B0C',    // 深黑色起始
+    backgroundGradientEnd: '#151718',      // 背景色结束
   },
 } as const;

ios/digitalpilates/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -1,7 +1,7 @@
 {
   "images" : [
     {
-      "filename" : "未命名项目 (1).jpeg",
+      "filename" : "Sealife.jpeg",
       "idiom" : "universal",
       "platform" : "ios",
       "size" : "1024x1024"

ios/digitalpilates/Images.xcassets/SplashScreenLogo.imageset/Contents.json

@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "未命名项目 (1).jpeg",
+      "filename" : "Sealife.jpeg",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "未命名项目.jpeg",
+      "filename" : "未命名项目 (5).jpeg",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "未命名项目 1.jpeg",
+      "filename" : "未命名项目 (5) 1.jpeg",
       "idiom" : "universal",
       "scale" : "3x"
     }

ios/digitalpilates/Images.xcassets/logo.imageset/Contents.json

@@ -1,17 +1,17 @@
 {
   "images" : [
     {
-      "filename" : "未命名项目 (1).jpeg",
+      "filename" : "Sealife.jpeg",
       "idiom" : "universal",
       "scale" : "1x"
     },
     {
-      "filename" : "未命名项目.jpeg",
+      "filename" : "未命名项目 (5).jpeg",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
-      "filename" : "未命名项目 1.jpeg",
+      "filename" : "未命名项目 (5) 1.jpeg",
       "idiom" : "universal",
       "scale" : "3x"
     }

utils/bmi.ts

@@ -57,7 +57,7 @@ const BMI_COLORS = {
     backgroundColor: '#FFF4E6', // 浅橙色背景
   },
   normal: {
-    color: '#2D5016', // 深绿色文字
+    color: '#2D5016', // 深绿色文字，保持硬编码因为这是工具函数的固定配色
     backgroundColor: '#E8F5E8', // 浅绿色背景
   },
   overweight: {