feat(i18n): 全面实现应用核心功能模块的国际化支持

- 新增 i18n 翻译资源，覆盖睡眠、饮水、体重、锻炼、用药 AI 识别、步数、健身圆环、基础代谢及设置等核心模块
- 重构相关页面及组件（如 SleepDetail, WaterDetail, WorkoutHistory 等）使用 `useI18n` 钩子替换硬编码文本
- 升级 `utils/date` 工具库与 `DateSelector` 组件，支持基于语言环境的日期格式化与显示
- 完善登录页、注销流程及权限申请弹窗的双语提示信息
- 优化部分页面的 UI 细节与字体样式以适配多语言显示

app/(tabs)/challenges.tsx

@@ -602,14 +602,14 @@ const styles = StyleSheet.create({
     marginBottom: 26,
   },
   title: {
-    fontSize: 32,
+    fontSize: 28,
     fontWeight: '700',
     letterSpacing: 1,
     fontFamily: 'AliBold'
   },
   subtitle: {
     marginTop: 6,
-    fontSize: 14,
+    fontSize: 12,
     fontWeight: '500',
     opacity: 0.8,
     fontFamily: 'AliRegular'
@@ -619,8 +619,8 @@ const styles = StyleSheet.create({
     alignItems: 'center',
   },
   joinButtonGlass: {
-    paddingHorizontal: 16,
-    paddingVertical: 10,
+    paddingHorizontal: 14,
+    paddingVertical: 8,
     borderRadius: 16,
     minWidth: 70,
     alignItems: 'center',
@@ -629,7 +629,7 @@ const styles = StyleSheet.create({
     borderColor: 'rgba(255,255,255,0.45)',
   },
   joinButtonLabel: {
-    fontSize: 14,
+    fontSize: 12,
     fontWeight: '700',
     color: '#0f1528',
     letterSpacing: 0.5,
@@ -639,8 +639,8 @@ const styles = StyleSheet.create({
     backgroundColor: 'rgba(255,255,255,0.7)',
   },
   createButton: {
-    width: 40,
-    height: 40,
+    width: 36,
+    height: 36,
     borderRadius: 20,
     alignItems: 'center',
     justifyContent: 'center',

app/auth/login.tsx

@@ -13,6 +13,7 @@ import { PRIVACY_POLICY_URL, USER_AGREEMENT_URL } from '@/constants/Agree';
 import { Colors } from '@/constants/Colors';
 import { useAppDispatch } from '@/hooks/redux';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 import { fetchMyProfile, login } from '@/store/userSlice';
 import Toast from 'react-native-toast-message';
 
@@ -23,6 +24,7 @@ export default function LoginScreen() {
   const color = Colors[scheme];
   const pageBackground = scheme === 'light' ? color.pageBackgroundEmphasis : color.background;
   const dispatch = useAppDispatch();
+  const { t } = useI18n();
   const AnimatedLinear = useMemo(() => Animated.createAnimatedComponent(LinearGradient), []);
 
   // 背景动效：轻微平移/旋转与呼吸动画
@@ -79,12 +81,12 @@ export default function LoginScreen() {
   const guardAgreement = useCallback((action: () => void) => {
     if (!hasAgreed) {
       Alert.alert(
-        '请先阅读并同意',
-        '继续登录前，请阅读并勾选《隐私政策》和《用户协议》。点击“同意并继续”将默认勾选并继续登录。',
+        t('login.agreement.alert.title'),
+        t('login.agreement.alert.message'),
         [
-          { text: '取消', style: 'cancel' },
+          { text: t('login.agreement.alert.cancel'), style: 'cancel' },
           {
-            text: '同意并继续',
+            text: t('login.agreement.alert.confirm'),
             onPress: () => {
               setHasAgreed(true);
               setTimeout(() => action(), 0);
@@ -96,7 +98,7 @@ export default function LoginScreen() {
       return;
     }
     action();
-  }, [hasAgreed]);
+  }, [hasAgreed, t]);
 
   const onAppleLogin = useCallback(async () => {
     if (!appleAvailable) return;
@@ -110,7 +112,7 @@ export default function LoginScreen() {
       });
       const identityToken = (credential as any)?.identityToken;
       if (!identityToken || typeof identityToken !== 'string') {
-        throw new Error('未获取到 Apple 身份令牌');
+        throw new Error(t('login.errors.appleIdentityTokenMissing'));
       }
       await dispatch(login({ appleIdentityToken: identityToken })).unwrap();
 
@@ -118,7 +120,7 @@ export default function LoginScreen() {
       await dispatch(fetchMyProfile())
 
       Toast.show({
-        text1: '登录成功',
+        text1: t('login.success.loginSuccess'),
         type: 'success',
       });
       // 登录成功后处理重定向
@@ -145,12 +147,12 @@ export default function LoginScreen() {
       console.log('err.code', err.code);
 
       if (err?.code === 'ERR_CANCELED' || err?.code === 'ERR_REQUEST_CANCELED') return;
-      const message = err?.message || '登录失败，请稍后再试';
-      Alert.alert('登录失败', message);
+      const message = err?.message || t('login.errors.loginFailed');
+      Alert.alert(t('login.errors.loginFailedTitle'), message);
     } finally {
       setLoading(false);
     }
-  }, [appleAvailable, router, searchParams?.redirectParams, searchParams?.redirectTo]);
+  }, [appleAvailable, router, searchParams?.redirectParams, searchParams?.redirectTo, dispatch, t]);
 
 
   // 登录按钮不再因未勾选协议而禁用，仅在加载中禁用
@@ -244,14 +246,14 @@ export default function LoginScreen() {
               <Ionicons name="chevron-back" size={24} color={scheme === 'dark' ? '#ECEDEE' : '#192126'} />
             </TouchableOpacity>
           )}
-          <Text style={[styles.headerTitle, { color: color.text }]}>登录</Text>
+          <Text style={[styles.headerTitle, { color: color.text }]}>{t('login.title')}</Text>
           <View style={{ width: 32 }} />
         </View>
 
         <ScrollView contentContainerStyle={styles.content} showsVerticalScrollIndicator={false}>
           <View style={styles.headerWrap}>
             <ThemedText style={[styles.title, { color: color.text }]}>Out Live</ThemedText>
-            <ThemedText style={[styles.subtitle, { color: color.textMuted }]}>健康生活，自律让我更自由</ThemedText>
+            <ThemedText style={[styles.subtitle, { color: color.textMuted }]}>{t('login.subtitle')}</ThemedText>
           </View>
 
           {/* Apple 登录 */}
@@ -276,12 +278,12 @@ export default function LoginScreen() {
                         color="#FFFFFF"
                         style={{ marginRight: 10 }}
                       />
-                      <Text style={styles.appleText}>登录中...</Text>
+                      <Text style={styles.appleText}>{t('login.loggingIn')}</Text>
                     </>
                   ) : (
                     <>
                       <Ionicons name="logo-apple" size={22} color="#FFFFFF" style={{ marginRight: 10 }} />
-                      <Text style={styles.appleText}>使用 Apple 登录</Text>
+                      <Text style={styles.appleText}>{t('login.appleLogin')}</Text>
                     </>
                   )}
                 </GlassView>
@@ -294,12 +296,12 @@ export default function LoginScreen() {
                         color="#FFFFFF"
                         style={{ marginRight: 10 }}
                       />
-                      <Text style={styles.appleText}>登录中...</Text>
+                      <Text style={styles.appleText}>{t('login.loggingIn')}</Text>
                     </>
                   ) : (
                     <>
                       <Ionicons name="logo-apple" size={22} color="#FFFFFF" style={{ marginRight: 10 }} />
-                      <Text style={styles.appleText}>使用 Apple 登录</Text>
+                      <Text style={styles.appleText}>{t('login.appleLogin')}</Text>
                     </>
                   )}
                 </View>
@@ -319,13 +321,13 @@ export default function LoginScreen() {
                 {hasAgreed && <Ionicons name="checkmark" size={14} color={color.onPrimary} />}
               </View>
             </Pressable>
-            <Text style={[styles.agreementText, { color: color.textMuted }]}>我已阅读并同意</Text>
+            <Text style={[styles.agreementText, { color: color.textMuted }]}>{t('login.agreement.readAndAgree')}</Text>
             <Pressable onPress={() => Linking.openURL(PRIVACY_POLICY_URL)}>
-              <Text style={[styles.link, { color: color.primary }]}>《隐私政策》</Text>
+              <Text style={[styles.link, { color: color.primary }]}>{t('login.agreement.privacyPolicy')}</Text>
             </Pressable>
-            <Text style={[styles.agreementText, { color: color.textMuted }]}>和</Text>
+            <Text style={[styles.agreementText, { color: color.textMuted }]}>{t('login.agreement.and')}</Text>
             <Pressable onPress={() => Linking.openURL(USER_AGREEMENT_URL)}>
-              <Text style={[styles.link, { color: color.primary }]}>《用户协议》</Text>
+              <Text style={[styles.link, { color: color.primary }]}>{t('login.agreement.userAgreement')}</Text>
             </Pressable>
           </View>
 

app/basal-metabolism-detail.tsx

@@ -2,9 +2,10 @@ import { DateSelector } from '@/components/DateSelector';
 import { HeaderBar } from '@/components/ui/HeaderBar';
 import { Colors } from '@/constants/Colors';
 import { useAppSelector } from '@/hooks/redux';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { selectUserAge, selectUserProfile } from '@/store/userSlice';
-import { getMonthDaysZh, getTodayIndexInMonth } from '@/utils/date';
+import { getLocalizedDateFormat, getMonthDays, getTodayIndexInMonth } from '@/utils/date';
 import { fetchBasalEnergyBurned } from '@/utils/health';
 import { Ionicons } from '@expo/vector-icons';
 import dayjs from 'dayjs';
@@ -24,6 +25,7 @@ type BasalMetabolismData = {
 };
 
 export default function BasalMetabolismDetailScreen() {
+  const { t, i18n } = useI18n();
   const userProfile = useAppSelector(selectUserProfile);
   const userAge = useAppSelector(selectUserAge);
   const safeAreaTop = useSafeAreaTop()
@@ -140,9 +142,9 @@ export default function BasalMetabolismDetailScreen() {
 
   // 获取当前选中日期
   const currentSelectedDate = useMemo(() => {
-    const days = getMonthDaysZh();
+    const days = getMonthDays(undefined, i18n.language as 'zh' | 'en');
     return days[selectedIndex]?.date?.toDate() ?? new Date();
-  }, [selectedIndex]);
+  }, [selectedIndex, i18n.language]);
 
 
   // 计算BMR范围
@@ -203,7 +205,7 @@ export default function BasalMetabolismDetailScreen() {
     setSelectedIndex(index);
 
     // 获取选中日期
-    const days = getMonthDaysZh();
+    const days = getMonthDays(undefined, i18n.language as 'zh' | 'en');
     const selectedDate = days[index]?.date?.toDate();
 
     if (selectedDate) {
@@ -247,7 +249,7 @@ export default function BasalMetabolismDetailScreen() {
         }
       } catch (err) {
         if (!isCancelled) {
-          setError(err instanceof Error ? err.message : '获取数据失败');
+          setError(err instanceof Error ? err.message : t('basalMetabolismDetail.chart.error.fetchFailed'));
         }
       } finally {
         if (!isCancelled) {
@@ -280,7 +282,8 @@ export default function BasalMetabolismDetailScreen() {
           // 显示周数
           const weekOfYear = dayjs(item.date).week();
           const firstWeekOfYear = dayjs(item.date).startOf('year').week();
-          return `第${weekOfYear - firstWeekOfYear + 1}周`;
+          const weekNumber = weekOfYear - firstWeekOfYear + 1;
+          return t('basalMetabolismDetail.chart.weekLabel', { week: weekNumber });
         default:
           return dayjs(item.date).format('MM-DD');
       }
@@ -319,7 +322,7 @@ export default function BasalMetabolismDetailScreen() {
 
       {/* 头部导航 */}
       <HeaderBar
-        title="基础代谢"
+        title={t('basalMetabolismDetail.title')}
         transparent
         right={
           <TouchableOpacity
@@ -355,7 +358,9 @@ export default function BasalMetabolismDetailScreen() {
         {/* 当前日期基础代谢显示 */}
         <View style={styles.currentDataCard}>
           <Text style={styles.currentDataTitle}>
-            {dayjs(currentSelectedDate).format('M月D日')} 基础代谢
+            {t('basalMetabolismDetail.currentData.title', {
+              date: getLocalizedDateFormat(dayjs(currentSelectedDate), i18n.language as 'zh' | 'en')
+            })}
           </Text>
           <View style={styles.currentValueContainer}>
             <Text style={styles.currentValue}>
@@ -366,21 +371,24 @@ export default function BasalMetabolismDetailScreen() {
                 if (selectedDateData?.value) {
                   return Math.round(selectedDateData.value).toString();
                 }
-                return '--';
+                return t('basalMetabolismDetail.currentData.noData');
               })()}
             </Text>
-            <Text style={styles.currentUnit}>千卡</Text>
+            <Text style={styles.currentUnit}>{t('basalMetabolismDetail.currentData.unit')}</Text>
           </View>
           {bmrRange && (
             <Text style={styles.rangeText}>
-              正常范围: {bmrRange.min}-{bmrRange.max} 千卡
+              {t('basalMetabolismDetail.currentData.normalRange', { 
+                min: bmrRange.min, 
+                max: bmrRange.max 
+              })}
             </Text>
           )}
         </View>
 
         {/* 基础代谢统计 */}
         <View style={styles.statsCard}>
-          <Text style={styles.statsTitle}>基础代谢统计</Text>
+          <Text style={styles.statsTitle}>{t('basalMetabolismDetail.stats.title')}</Text>
 
           {/* Tab 切换 */}
           <View style={styles.tabContainer}>
@@ -390,7 +398,7 @@ export default function BasalMetabolismDetailScreen() {
               activeOpacity={0.7}
             >
               <Text style={[styles.tabText, activeTab === 'week' && styles.activeTabText]}>
-                按周
+                {t('basalMetabolismDetail.stats.tabs.week')}
               </Text>
             </TouchableOpacity>
             <TouchableOpacity
@@ -399,7 +407,7 @@ export default function BasalMetabolismDetailScreen() {
               activeOpacity={0.7}
             >
               <Text style={[styles.tabText, activeTab === 'month' && styles.activeTabText]}>
-                按月
+                {t('basalMetabolismDetail.stats.tabs.month')}
               </Text>
             </TouchableOpacity>
           </View>
@@ -408,28 +416,30 @@ export default function BasalMetabolismDetailScreen() {
           {isLoading ? (
             <View style={styles.loadingChart}>
               <ActivityIndicator size="large" color="#4ECDC4" />
-              <Text style={styles.loadingText}>加载中...</Text>
+              <Text style={styles.loadingText}>{t('basalMetabolismDetail.chart.loadingText')}</Text>
             </View>
           ) : error ? (
             <View style={styles.errorChart}>
-              <Text style={styles.errorText}>加载失败: {error}</Text>
+              <Text style={styles.errorText}>
+                {t('basalMetabolismDetail.chart.error.text', { error })}
+              </Text>
               <TouchableOpacity
                 style={styles.retryButton}
                 onPress={() => {
-                  // 重新加载数据
+                  // {t('basalMetabolismDetail.comments.reloadData')}
                   setIsLoading(true);
                   setError(null);
                   fetchBasalMetabolismData(activeTab).then(data => {
                     setChartData(data);
                     setIsLoading(false);
                   }).catch(err => {
-                    setError(err instanceof Error ? err.message : '获取数据失败');
+                    setError(err instanceof Error ? err.message : t('basalMetabolismDetail.chart.error.fetchFailed'));
                     setIsLoading(false);
                   });
                 }}
                 activeOpacity={0.7}
               >
-                <Text style={styles.retryText}>重试</Text>
+                <Text style={styles.retryText}>{t('basalMetabolismDetail.chart.error.retry')}</Text>
               </TouchableOpacity>
             </View>
           ) : processedChartData.datasets.length > 0 && processedChartData.datasets[0].data.length > 0 ? (
@@ -441,7 +451,7 @@ export default function BasalMetabolismDetailScreen() {
               width={Dimensions.get('window').width - 80}
               height={220}
               yAxisLabel=""
-              yAxisSuffix="千卡"
+              yAxisSuffix={t('basalMetabolismDetail.chart.yAxisSuffix')}
               chartConfig={{
                 backgroundColor: '#ffffff',
                 backgroundGradientFrom: '#ffffff',
@@ -470,7 +480,7 @@ export default function BasalMetabolismDetailScreen() {
             />
           ) : (
             <View style={styles.emptyChart}>
-              <Text style={styles.emptyChartText}>暂无数据</Text>
+              <Text style={styles.emptyChartText}>{t('basalMetabolismDetail.chart.empty')}</Text>
             </View>
           )}
         </View>
@@ -490,56 +500,66 @@ export default function BasalMetabolismDetailScreen() {
               style={styles.closeButton}
               onPress={() => setInfoModalVisible(false)}
             >
-              <Text style={styles.closeButtonText}>×</Text>
+              <Text style={styles.closeButtonText}>{t('basalMetabolismDetail.modal.closeButton')}</Text>
             </TouchableOpacity>
 
             {/* 标题 */}
-            <Text style={styles.modalTitle}>基础代谢</Text>
+            <Text style={styles.modalTitle}>{t('basalMetabolismDetail.modal.title')}</Text>
 
             {/* 基础代谢定义 */}
             <Text style={styles.modalDescription}>
-              基础代谢，也称基础代谢率（BMR），是指人体在完全静息状态下维持基本生命功能（心跳、呼吸、体温调节等）所需的最低能量消耗，通常以卡路里为单位。
+              {t('basalMetabolismDetail.modal.description')}
             </Text>
 
             {/* 为什么重要 */}
-            <Text style={styles.sectionTitle}>为什么重要？</Text>
+            <Text style={styles.sectionTitle}>{t('basalMetabolismDetail.modal.sections.importance.title')}</Text>
             <Text style={styles.sectionContent}>
-              基础代谢占总能量消耗的60-75%，是能量平衡的基础。了解您的基础代谢有助于制定科学的营养计划、优化体重管理策略，以及评估代谢健康状态。
+              {t('basalMetabolismDetail.modal.sections.importance.content')}
             </Text>
 
             {/* 正常范围 */}
-            <Text style={styles.sectionTitle}>正常范围</Text>
+            <Text style={styles.sectionTitle}>{t('basalMetabolismDetail.modal.sections.normalRange.title')}</Text>
             <Text style={styles.formulaText}>
-              - 男性：BMR = 10 × 体重(kg) + 6.25 × 身高(cm) - 5 × 年龄 + 5
+              - {t('basalMetabolismDetail.modal.sections.normalRange.formulas.male')}
             </Text>
             <Text style={styles.formulaText}>
-              - 女性：BMR = 10 × 体重(kg) + 6.25 × 身高(cm) - 5 × 年龄 - 161
+              - {t('basalMetabolismDetail.modal.sections.normalRange.formulas.female')}
             </Text>
 
             {bmrRange ? (
               <>
-                <Text style={styles.rangeText}>您的正常区间：{bmrRange.min}-{bmrRange.max}千卡/天</Text>
+                <Text style={styles.rangeText}>
+                  {t('basalMetabolismDetail.modal.sections.normalRange.userRange', { 
+                    min: bmrRange.min, 
+                    max: bmrRange.max 
+                  })}
+                </Text>
                 <Text style={styles.rangeNote}>
-                  (在公式基础计算值上下浮动15%都属于正常范围)
+                  {t('basalMetabolismDetail.modal.sections.normalRange.rangeNote')}
                 </Text>
                 <Text style={styles.userInfoText}>
-                  基于您的信息：{userProfile.gender === 'male' ? '男性' : '女性'}，{userAge}岁，{userProfile.height}cm，{userProfile.weight}kg
+                  {t('basalMetabolismDetail.modal.sections.normalRange.userInfo', { 
+                    gender: t(`basalMetabolismDetail.gender.${userProfile.gender === 'male' ? 'male' : 'female'}`),
+                    age: userAge,
+                    height: userProfile.height,
+                    weight: userProfile.weight
+                  })}
                 </Text>
               </>
             ) : (
-              <Text style={styles.rangeText}>请完善基本信息以计算您的代谢率</Text>
+              <Text style={styles.rangeText}>
+                {t('basalMetabolismDetail.modal.sections.normalRange.incompleteInfo')}
+              </Text>
             )}
 
             {/* 提高代谢率的策略 */}
-            <Text style={styles.sectionTitle}>提高代谢率的策略</Text>
-            <Text style={styles.strategyText}>科学研究支持以下方法：</Text>
+            <Text style={styles.sectionTitle}>{t('basalMetabolismDetail.modal.sections.strategies.title')}</Text>
+            <Text style={styles.strategyText}>{t('basalMetabolismDetail.modal.sections.strategies.subtitle')}</Text>
 
             <View style={styles.strategyList}>
-              <Text style={styles.strategyItem}>1.增加肌肉量 (每周2-3次力量训练)</Text>
-              <Text style={styles.strategyItem}>2.高强度间歇训练 (HIIT)</Text>
-              <Text style={styles.strategyItem}>3.充分蛋白质摄入 (体重每公斤1.6-2.2g)</Text>
-              <Text style={styles.strategyItem}>4.保证充足睡眠 (7-9小时/晚)</Text>
-              <Text style={styles.strategyItem}>5.避免过度热量限制 (不低于BMR的80%)</Text>
+              {(t('basalMetabolismDetail.modal.sections.strategies.items', { returnObjects: true }) as string[]).map((item: string, index: number) => (
+                <Text key={index} style={styles.strategyItem}>{item}</Text>
+              ))}
             </View>
           </View>
         </View>

app/challenges/[id]/leaderboard.tsx

@@ -4,6 +4,7 @@ import { HeaderBar } from '@/components/ui/HeaderBar';
 import { Colors } from '@/constants/Colors';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import {
   fetchChallengeDetail,
@@ -37,6 +38,7 @@ export default function ChallengeLeaderboardScreen() {
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
   const insets = useSafeAreaInsets();
+  const { t } = useI18n();
 
   const challengeSelector = useMemo(() => (id ? selectChallengeById(id) : undefined), [id]);
   const challenge = useAppSelector((state) => (challengeSelector ? challengeSelector(state) : undefined));
@@ -75,12 +77,12 @@ export default function ChallengeLeaderboardScreen() {
   if (!id) {
     return (
       <View style={[styles.safeArea, { backgroundColor: colorTokens.background }]}>
-        <HeaderBar title="排行榜" onBack={() => router.back()} withSafeTop />
+        <HeaderBar title={t('challengeDetail.leaderboard.title')} onBack={() => router.back()} withSafeTop />
         <View style={{
           paddingTop: safeAreaTop
         }} />
         <View style={styles.missingContainer}>
-          <Text style={[styles.missingText, { color: colorTokens.textSecondary }]}>未找到该挑战。</Text>
+          <Text style={[styles.missingText, { color: colorTokens.textSecondary }]}>{t('challengeDetail.leaderboard.notFound')}</Text>
         </View>
       </View>
     );
@@ -89,10 +91,10 @@ export default function ChallengeLeaderboardScreen() {
   if (detailStatus === 'loading' && !challenge) {
     return (
       <View style={[styles.safeArea, { backgroundColor: '#f3f4fb' }]}>
-        <HeaderBar title="排行榜" onBack={() => router.back()} withSafeTop />
+        <HeaderBar title={t('challengeDetail.leaderboard.title')} onBack={() => router.back()} withSafeTop />
         <View style={styles.loadingContainer}>
           <ActivityIndicator color={colorTokens.primary} />
-          <Text style={[styles.loadingText, { color: colorTokens.textSecondary }]}>加载榜单中…</Text>
+          <Text style={[styles.loadingText, { color: colorTokens.textSecondary }]}>{t('challengeDetail.leaderboard.loading')}</Text>
         </View>
       </View>
     );
@@ -131,10 +133,10 @@ export default function ChallengeLeaderboardScreen() {
   if (!challenge) {
     return (
       <View style={[styles.safeArea, { backgroundColor: '#f3f4fb' }]}>
-        <HeaderBar title="排行榜" onBack={() => router.back()} withSafeTop />
+        <HeaderBar title={t('challengeDetail.leaderboard.title')} onBack={() => router.back()} withSafeTop />
         <View style={styles.missingContainer}>
           <Text style={[styles.missingText, { color: colorTokens.textSecondary }]}>
-            {detailError ?? '暂时无法加载榜单，请稍后再试。'}
+            {detailError ?? t('challengeDetail.leaderboard.loadFailed')}
           </Text>
         </View>
       </View>
@@ -146,7 +148,7 @@ export default function ChallengeLeaderboardScreen() {
 
   return (
     <View style={[styles.safeArea, { backgroundColor: '#f3f4fb' }]}>
-      <HeaderBar title="排行榜" onBack={() => router.back()} withSafeTop />
+      <HeaderBar title={t('challengeDetail.leaderboard.title')} onBack={() => router.back()} withSafeTop />
       <ScrollView
         style={styles.scrollView}
         contentContainerStyle={{ paddingBottom: insets.bottom + 40, paddingTop: safeAreaTop }}
@@ -178,7 +180,7 @@ export default function ChallengeLeaderboardScreen() {
           {showInitialRankingLoading ? (
             <View style={styles.rankingLoading}>
               <ActivityIndicator color={colorTokens.primary} />
-              <Text style={[styles.loadingText, { color: colorTokens.textSecondary }]}>加载榜单中…</Text>
+              <Text style={[styles.loadingText, { color: colorTokens.textSecondary }]}>{t('challengeDetail.leaderboard.loading')}</Text>
             </View>
           ) : rankingData.length ? (
             rankingData.map((item, index) => (
@@ -196,18 +198,18 @@ export default function ChallengeLeaderboardScreen() {
             </View>
           ) : (
             <View style={styles.emptyRanking}>
-              <Text style={styles.emptyRankingText}>榜单即将开启，快来抢占席位。</Text>
+              <Text style={styles.emptyRankingText}>{t('challengeDetail.leaderboard.empty')}</Text>
             </View>
           )}
           {isLoadingMore ? (
             <View style={styles.loadMoreIndicator}>
               <ActivityIndicator color={colorTokens.primary} size="small" />
-              <Text style={[styles.loadingText, { color: colorTokens.textSecondary, marginTop: 8 }]}>加载更多…</Text>
+              <Text style={[styles.loadingText, { color: colorTokens.textSecondary, marginTop: 8 }]}>{t('challengeDetail.leaderboard.loadMore')}</Text>
             </View>
           ) : null}
           {rankingLoadMoreStatus === 'failed' ? (
             <View style={styles.loadMoreIndicator}>
-              <Text style={styles.loadMoreErrorText}>加载更多失败，请下拉刷新重试</Text>
+              <Text style={styles.loadMoreErrorText}>{t('challengeDetail.leaderboard.loadMoreFailed')}</Text>
             </View>
           ) : null}
         </View>

app/circumference-detail.tsx

@@ -25,6 +25,7 @@ const CIRCUMFERENCE_TYPES = [
   { key: 'calfCircumference', label: '小腿围', color: '#DDA0DD' },
 ];
 
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { CircumferencePeriod } from '@/services/circumferenceAnalysis';
 
@@ -35,6 +36,7 @@ export default function CircumferenceDetailScreen() {
   const dispatch = useAppDispatch();
   const userProfile = useAppSelector(selectUserProfile);
   const { ensureLoggedIn } = useAuthGuard();
+  const { t } = useI18n();
 
   // 日期相关状态
   const [selectedIndex, setSelectedIndex] = useState(getTodayIndexInMonth());
@@ -78,37 +80,37 @@ export default function CircumferenceDetailScreen() {
   const measurements = [
     {
       key: 'chestCircumference',
-      label: '胸围',
+      label: t('circumferenceDetail.measurements.chest'),
       value: userProfile?.chestCircumference,
       color: '#FF6B6B',
     },
     {
       key: 'waistCircumference',
-      label: '腰围',
+      label: t('circumferenceDetail.measurements.waist'),
       value: userProfile?.waistCircumference,
       color: '#4ECDC4',
     },
     {
       key: 'upperHipCircumference',
-      label: '上臀围',
+      label: t('circumferenceDetail.measurements.upperHip'),
       value: userProfile?.upperHipCircumference,
       color: '#45B7D1',
     },
     {
       key: 'armCircumference',
-      label: '臂围',
+      label: t('circumferenceDetail.measurements.arm'),
       value: userProfile?.armCircumference,
       color: '#96CEB4',
     },
     {
       key: 'thighCircumference',
-      label: '大腿围',
+      label: t('circumferenceDetail.measurements.thigh'),
       value: userProfile?.thighCircumference,
       color: '#FFEAA7',
     },
     {
       key: 'calfCircumference',
-      label: '小腿围',
+      label: t('circumferenceDetail.measurements.calf'),
       value: userProfile?.calfCircumference,
       color: '#DDA0DD',
     },
@@ -243,10 +245,10 @@ export default function CircumferenceDetailScreen() {
           // 将YYYY-MM-DD格式转换为第几周
           const weekOfYear = dayjs(item.label).week();
           const firstWeekOfMonth = dayjs(item.label).startOf('month').week();
-          return `第${weekOfYear - firstWeekOfMonth + 1}周`;
+          return t('circumferenceDetail.chart.weekLabel', { week: weekOfYear - firstWeekOfMonth + 1 });
         case 'year':
           // 将YYYY-MM格式转换为月份
-          return dayjs(item.label).format('M月');
+          return t('circumferenceDetail.chart.monthLabel', { month: dayjs(item.label).format('M') });
         default:
           return item.label;
       }
@@ -287,7 +289,7 @@ export default function CircumferenceDetailScreen() {
 
       {/* 头部导航 */}
       <HeaderBar
-        title="围度统计"
+        title={t('circumferenceDetail.title')}
         transparent
       />
 
@@ -338,7 +340,7 @@ export default function CircumferenceDetailScreen() {
 
         {/* 围度统计 */}
         <View style={styles.statsCard}>
-          <Text style={styles.statsTitle}>围度统计</Text>
+          <Text style={styles.statsTitle}>{t('circumferenceDetail.title')}</Text>
 
           {/* Tab 切换 */}
           <View style={styles.tabContainer}>
@@ -348,7 +350,7 @@ export default function CircumferenceDetailScreen() {
               activeOpacity={0.7}
             >
               <Text style={[styles.tabText, activeTab === 'week' && styles.activeTabText]}>
-                按周
+                {t('circumferenceDetail.tabs.week')}
               </Text>
             </TouchableOpacity>
             <TouchableOpacity
@@ -357,7 +359,7 @@ export default function CircumferenceDetailScreen() {
               activeOpacity={0.7}
             >
               <Text style={[styles.tabText, activeTab === 'month' && styles.activeTabText]}>
-                按月
+                {t('circumferenceDetail.tabs.month')}
               </Text>
             </TouchableOpacity>
             <TouchableOpacity
@@ -366,7 +368,7 @@ export default function CircumferenceDetailScreen() {
               activeOpacity={0.7}
             >
               <Text style={[styles.tabText, activeTab === 'year' && styles.activeTabText]}>
-                按年
+                {t('circumferenceDetail.tabs.year')}
               </Text>
             </TouchableOpacity>
           </View>
@@ -390,7 +392,7 @@ export default function CircumferenceDetailScreen() {
                     styles.legendText,
                     !isVisible && styles.legendTextHidden
                   ]}>
-                    {type.label}
+                    {t(`circumferenceDetail.measurements.${type.key.replace('Circumference', '').toLowerCase()}`)}
                   </Text>
                 </TouchableOpacity>
               );
@@ -401,17 +403,17 @@ export default function CircumferenceDetailScreen() {
           {isLoading ? (
             <View style={styles.loadingChart}>
               <ActivityIndicator size="large" color="#4ECDC4" />
-              <Text style={styles.loadingText}>加载中...</Text>
+              <Text style={styles.loadingText}>{t('circumferenceDetail.loading')}</Text>
             </View>
           ) : error ? (
             <View style={styles.errorChart}>
-              <Text style={styles.errorText}>加载失败: {error}</Text>
+              <Text style={styles.errorText}>{t('circumferenceDetail.error')}: {error}</Text>
               <TouchableOpacity
                 style={styles.retryButton}
                 onPress={() => dispatch(fetchCircumferenceAnalysis(activeTab))}
                 activeOpacity={0.7}
               >
-                <Text style={styles.retryText}>重试</Text>
+                <Text style={styles.retryText}>{t('circumferenceDetail.retry')}</Text>
               </TouchableOpacity>
             </View>
           ) : processedChartData.datasets.length > 0 ? (
@@ -453,8 +455,8 @@ export default function CircumferenceDetailScreen() {
             <View style={styles.emptyChart}>
               <Text style={styles.emptyChartText}>
                 {processedChartData.datasets.length === 0 && !isLoading && !error
-                  ? '暂无数据'
-                  : '请选择要显示的围度数据'
+                  ? t('circumferenceDetail.chart.empty')
+                  : t('circumferenceDetail.chart.noSelection')
                 }
               </Text>
             </View>
@@ -469,12 +471,12 @@ export default function CircumferenceDetailScreen() {
           setModalVisible(false);
           setSelectedMeasurement(null);
         }}
-        title={selectedMeasurement ? `设置${selectedMeasurement.label}` : '设置围度'}
+        title={selectedMeasurement ? t('circumferenceDetail.modal.title', { label: selectedMeasurement.label }) : t('circumferenceDetail.modal.defaultTitle')}
         items={circumferenceOptions}
         selectedValue={selectedMeasurement?.currentValue}
         onValueChange={() => { }} // Real-time update not needed
         onConfirm={handleUpdateMeasurement}
-        confirmButtonText="确认"
+        confirmButtonText={t('circumferenceDetail.modal.confirm')}
         pickerHeight={180}
       />
     </View>

app/fitness-rings-detail.tsx

@@ -3,6 +3,7 @@ import { ThemedView } from '@/components/ThemedView';
 import { HeaderBar } from '@/components/ui/HeaderBar';
 import { Colors } from '@/constants/Colors';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import {
   fetchActivityRingsForDate,
@@ -51,6 +52,7 @@ type WeekData = {
 };
 
 export default function FitnessRingsDetailScreen() {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
   const colorScheme = useColorScheme();
   const [weekData, setWeekData] = useState<WeekData[]>([]);
@@ -82,7 +84,7 @@ export default function FitnessRingsDetailScreen() {
         exerciseInfoAnim.setValue(0);
       }
     } catch (error) {
-      console.error('加载锻炼分钟说明偏好失败:', error);
+      console.error(t('fitnessRingsDetail.errors.loadExerciseInfoPreference'), error);
     }
   };
 
@@ -98,7 +100,15 @@ export default function FitnessRingsDetailScreen() {
     for (let i = 0; i < 7; i++) {
       const currentDay = startOfWeek.add(i, 'day');
       const isToday = currentDay.isSame(today, 'day');
-      const dayNames = ['周一', '周二', '周三', '周四', '周五', '周六', '周日'];
+      const dayNames = [
+        t('fitnessRingsDetail.weekDays.monday'),
+        t('fitnessRingsDetail.weekDays.tuesday'),
+        t('fitnessRingsDetail.weekDays.wednesday'),
+        t('fitnessRingsDetail.weekDays.thursday'),
+        t('fitnessRingsDetail.weekDays.friday'),
+        t('fitnessRingsDetail.weekDays.saturday'),
+        t('fitnessRingsDetail.weekDays.sunday')
+      ];
 
       try {
         const activityRingsData = await fetchActivityRingsForDate(currentDay.toDate());
@@ -303,7 +313,7 @@ export default function FitnessRingsDetailScreen() {
         setShowExerciseInfo(false);
       });
     } catch (error) {
-      console.error('保存锻炼分钟说明偏好失败:', error);
+      console.error(t('fitnessRingsDetail.errors.saveExerciseInfoPreference'), error);
     }
   };
 
@@ -380,7 +390,7 @@ export default function FitnessRingsDetailScreen() {
         {/* 活动热量卡片 */}
         <View style={styles.metricCard}>
           <View style={styles.cardHeader}>
-            <Text style={styles.cardTitle}>活动热量</Text>
+            <Text style={styles.cardTitle}>{t('fitnessRingsDetail.cards.activeCalories.title')}</Text>
             <TouchableOpacity style={styles.helpButton}>
               <Text style={styles.helpIcon}>?</Text>
             </TouchableOpacity>
@@ -390,25 +400,25 @@ export default function FitnessRingsDetailScreen() {
             <Text style={[styles.valueText, { color: '#FF3B30' }]}>
               {Math.round(activeEnergyBurned)}/{activeEnergyBurnedGoal}
             </Text>
-            <Text style={styles.unitText}>千卡</Text>
+            <Text style={styles.unitText}>{t('fitnessRingsDetail.cards.activeCalories.unit')}</Text>
           </View>
 
           <Text style={styles.cardSubtext}>
-            {Math.round(activeEnergyBurned)}千卡
+            {Math.round(activeEnergyBurned)}{t('fitnessRingsDetail.cards.activeCalories.unit')}
           </Text>
 
           {renderBarChart(
             hourlyCaloriesData.map(h => h.calories),
             Math.max(activeEnergyBurnedGoal / 24, 1),
             '#FF3B30',
-            '千卡'
+            t('fitnessRingsDetail.cards.activeCalories.unit')
           )}
         </View>
 
         {/* 锻炼分钟卡片 */}
         <View style={styles.metricCard}>
           <View style={styles.cardHeader}>
-            <Text style={styles.cardTitle}>锻炼分钟数</Text>
+            <Text style={styles.cardTitle}>{t('fitnessRingsDetail.cards.exerciseMinutes.title')}</Text>
             <TouchableOpacity style={styles.helpButton}>
               <Text style={styles.helpIcon}>?</Text>
             </TouchableOpacity>
@@ -418,18 +428,18 @@ export default function FitnessRingsDetailScreen() {
             <Text style={[styles.valueText, { color: '#FF9500' }]}>
               {Math.round(appleExerciseTime)}/{appleExerciseTimeGoal}
             </Text>
-            <Text style={styles.unitText}>分钟</Text>
+            <Text style={styles.unitText}>{t('fitnessRingsDetail.cards.exerciseMinutes.unit')}</Text>
           </View>
 
           <Text style={styles.cardSubtext}>
-            {Math.round(appleExerciseTime)}分钟
+            {Math.round(appleExerciseTime)}{t('fitnessRingsDetail.cards.exerciseMinutes.unit')}
           </Text>
 
           {renderBarChart(
             hourlyExerciseData.map(h => h.minutes),
             Math.max(appleExerciseTimeGoal / 8, 1),
             '#FF9500',
-            '分钟'
+            t('fitnessRingsDetail.cards.exerciseMinutes.unit')
           )}
 
           {/* 锻炼分钟说明 */}
@@ -450,15 +460,15 @@ export default function FitnessRingsDetailScreen() {
                 }
               ]}
             >
-              <Text style={styles.exerciseTitle}>锻炼分钟数:</Text>
+              <Text style={styles.exerciseTitle}>{t('fitnessRingsDetail.cards.exerciseMinutes.info.title')}</Text>
               <Text style={styles.exerciseDesc}>
-                进行强度不低于"快走"的运动锻炼，就会积累对应时长的锻炼分钟数。
+                {t('fitnessRingsDetail.cards.exerciseMinutes.info.description')}
               </Text>
               <Text style={styles.exerciseRecommendation}>
-                世卫组织推荐的成年人每天至少保持30分钟以上的中高强度运动。
+                {t('fitnessRingsDetail.cards.exerciseMinutes.info.recommendation')}
               </Text>
               <TouchableOpacity style={styles.knowButton} onPress={handleKnowButtonPress}>
-                <Text style={styles.knowButtonText}>知道了</Text>
+                <Text style={styles.knowButtonText}>{t('fitnessRingsDetail.cards.exerciseMinutes.info.knowButton')}</Text>
               </TouchableOpacity>
             </Animated.View>
           )}
@@ -467,7 +477,7 @@ export default function FitnessRingsDetailScreen() {
         {/* 活动小时数卡片 */}
         <View style={styles.metricCard}>
           <View style={styles.cardHeader}>
-            <Text style={styles.cardTitle}>活动小时数</Text>
+            <Text style={styles.cardTitle}>{t('fitnessRingsDetail.cards.standHours.title')}</Text>
             <TouchableOpacity style={styles.helpButton}>
               <Text style={styles.helpIcon}>?</Text>
             </TouchableOpacity>
@@ -477,18 +487,18 @@ export default function FitnessRingsDetailScreen() {
             <Text style={[styles.valueText, { color: '#007AFF' }]}>
               {Math.round(appleStandHours)}/{appleStandHoursGoal}
             </Text>
-            <Text style={styles.unitText}>小时</Text>
+            <Text style={styles.unitText}>{t('fitnessRingsDetail.cards.standHours.unit')}</Text>
           </View>
 
           <Text style={styles.cardSubtext}>
-            {Math.round(appleStandHours)}小时
+            {Math.round(appleStandHours)}{t('fitnessRingsDetail.cards.standHours.unit')}
           </Text>
 
           {renderBarChart(
             hourlyStandData.map(h => h.hasStood),
             1,
             '#007AFF',
-            '小时'
+            t('fitnessRingsDetail.cards.standHours.unit')
           )}
         </View>
       </View>
@@ -536,9 +546,9 @@ export default function FitnessRingsDetailScreen() {
         {/* 周闭环天数统计 */}
         <View style={styles.statsContainer}>
           <View style={styles.statRow}>
-            <Text style={[styles.statLabel, { color: Colors[colorScheme ?? 'light'].text }]}>周闭环天数</Text>
+            <Text style={[styles.statLabel, { color: Colors[colorScheme ?? 'light'].text }]}>{t('fitnessRingsDetail.stats.weeklyClosedRings')}</Text>
             <View style={styles.statValue}>
-              <Text style={[styles.statNumber, { color: Colors[colorScheme ?? 'light'].text }]}>{getClosedRingCount()}天</Text>
+              <Text style={[styles.statNumber, { color: Colors[colorScheme ?? 'light'].text }]}>{getClosedRingCount()}{t('fitnessRingsDetail.stats.daysUnit')}</Text>
             </View>
           </View>
         </View>
@@ -575,12 +585,12 @@ export default function FitnessRingsDetailScreen() {
           {Platform.OS === 'ios' && (
             <View style={styles.modalActions}>
               <Pressable onPress={closeDatePicker} style={[styles.modalBtn]}>
-                <Text style={styles.modalBtnText}>取消</Text>
+                <Text style={styles.modalBtnText}>{t('fitnessRingsDetail.datePicker.cancel')}</Text>
               </Pressable>
               <Pressable onPress={() => {
                 onConfirmDate(pickerDate);
               }} style={[styles.modalBtn, styles.modalBtnPrimary]}>
-                <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>确定</Text>
+                <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>{t('fitnessRingsDetail.datePicker.confirm')}</Text>
               </Pressable>
             </View>
           )}

app/medications/ai-camera.tsx

@@ -4,6 +4,7 @@ import { Colors } from '@/constants/Colors';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { useColorScheme } from '@/hooks/useColorScheme';
 import { useCosUpload } from '@/hooks/useCosUpload';
+import { useI18n } from '@/hooks/useI18n';
 import { createMedicationRecognitionTask } from '@/services/medications';
 import { getItem, setItem } from '@/utils/kvStore';
 import { Ionicons } from '@expo/vector-icons';
@@ -39,9 +40,9 @@ import { useSafeAreaInsets } from 'react-native-safe-area-context';
 const MEDICATION_GUIDE_SEEN_KEY = 'medication_ai_camera_guide_seen';
 
 const captureSteps = [
-  { key: 'front', title: '正面', subtitle: '保证药品名称清晰可见', mandatory: true },
-  { key: 'side', title: '背面', subtitle: '包含规格、成分等信息', mandatory: true },
-  { key: 'aux', title: '侧面', subtitle: '补充更多细节提升准确率', mandatory: false },
+  { key: 'front', mandatory: true },
+  { key: 'side', mandatory: true },
+  { key: 'aux', mandatory: false },
 ] as const;
 
 type CaptureKey = (typeof captureSteps)[number]['key'];
@@ -51,6 +52,7 @@ type Shot = {
 };
 
 export default function MedicationAiCameraScreen() {
+  const { t } = useI18n();
   const insets = useSafeAreaInsets();
   const scheme = (useColorScheme() ?? 'light') as keyof typeof Colors;
   const colors = Colors[scheme];
@@ -113,7 +115,14 @@ export default function MedicationAiCameraScreen() {
     }
   }, [allRequiredCaptured]);
 
-  const stepTitle = useMemo(() => `步骤 ${currentStepIndex + 1} / ${captureSteps.length}`, [currentStepIndex]);
+  const stepTitle = useMemo(
+    () =>
+      t('medications.aiCamera.steps.stepProgress', {
+        current: currentStepIndex + 1,
+        total: captureSteps.length,
+      }),
+    [currentStepIndex, t]
+  );
 
   // 计算固定的相机高度，不受按钮状态影响，避免布局跳动
   const cameraHeight = useMemo(() => {
@@ -159,7 +168,10 @@ export default function MedicationAiCameraScreen() {
       }
     } catch (error) {
       console.error('[MEDICATION_AI] pick image failed', error);
-      Alert.alert('选择失败', '请重试或更换图片');
+      Alert.alert(
+        t('medications.aiCamera.alerts.pickFailed.title'),
+        t('medications.aiCamera.alerts.pickFailed.message')
+      );
     }
   };
 
@@ -179,7 +191,10 @@ export default function MedicationAiCameraScreen() {
       }
     } catch (error) {
       console.error('[MEDICATION_AI] take picture failed', error);
-      Alert.alert('拍摄失败', '请重试');
+      Alert.alert(
+        t('medications.aiCamera.alerts.captureFailed.title'),
+        t('medications.aiCamera.alerts.captureFailed.message')
+      );
     }
   };
 
@@ -192,7 +207,10 @@ export default function MedicationAiCameraScreen() {
   const handleStartRecognition = async () => {
     // 检查必需照片是否完成
     if (!allRequiredCaptured) {
-      Alert.alert('照片不足', '请至少完成正面和背面拍摄');
+      Alert.alert(
+        t('medications.aiCamera.alerts.insufficientPhotos.title'),
+        t('medications.aiCamera.alerts.insufficientPhotos.message')
+      );
       return;
     }
 
@@ -209,7 +227,9 @@ export default function MedicationAiCameraScreen() {
       const [frontUpload, sideUpload, auxUpload] = await Promise.all([
         upload({ uri: shots.front.uri, name: `front-${Date.now()}.jpg`, type: 'image/jpeg' }),
         upload({ uri: shots.side.uri, name: `side-${Date.now()}.jpg`, type: 'image/jpeg' }),
-        shots.aux ? upload({ uri: shots.aux.uri, name: `aux-${Date.now()}.jpg`, type: 'image/jpeg' }) : Promise.resolve(null),
+        shots.aux
+          ? upload({ uri: shots.aux.uri, name: `aux-${Date.now()}.jpg`, type: 'image/jpeg' })
+          : Promise.resolve(null),
       ]);
 
       const task = await createMedicationRecognitionTask({
@@ -227,7 +247,10 @@ export default function MedicationAiCameraScreen() {
       });
     } catch (error: any) {
       console.error('[MEDICATION_AI] recognize failed', error);
-      Alert.alert('创建任务失败', error?.message || '请检查网络后重试');
+      Alert.alert(
+        t('medications.aiCamera.alerts.taskFailed.title'),
+        error?.message || t('medications.aiCamera.alerts.taskFailed.defaultMessage')
+      );
     } finally {
       setCreatingTask(false);
     }
@@ -278,12 +301,16 @@ export default function MedicationAiCameraScreen() {
               isInteractive={true}
             >
               <Ionicons name="camera-reverse-outline" size={20} color="#0f172a" />
-              <Text style={styles.secondaryBtnText}>翻转</Text>
+              <Text style={styles.secondaryBtnText}>
+                {t('medications.aiCamera.buttons.flip')}
+              </Text>
             </GlassView>
           ) : (
             <View style={[styles.secondaryBtn, styles.fallbackSecondaryBtn]}>
               <Ionicons name="camera-reverse-outline" size={20} color="#0f172a" />
-              <Text style={styles.secondaryBtnText}>翻转</Text>
+              <Text style={styles.secondaryBtnText}>
+                {t('medications.aiCamera.buttons.flip')}
+              </Text>
             </View>
           )}
         </TouchableOpacity>
@@ -440,12 +467,16 @@ export default function MedicationAiCameraScreen() {
                     isInteractive={true}
                   >
                     <Ionicons name="camera" size={20} color="#0ea5e9" />
-                    <Text style={styles.splitButtonLabel}>拍照</Text>
+                    <Text style={styles.splitButtonLabel}>
+                      {t('medications.aiCamera.buttons.capture')}
+                    </Text>
                   </GlassView>
                 ) : (
                   <View style={[styles.splitButton, styles.fallbackSplitButton]}>
                     <Ionicons name="camera" size={20} color="#0ea5e9" />
-                    <Text style={styles.splitButtonLabel}>拍照</Text>
+                    <Text style={styles.splitButtonLabel}>
+                      {t('medications.aiCamera.buttons.capture')}
+                    </Text>
                   </View>
                 )}
               </TouchableOpacity>
@@ -470,7 +501,9 @@ export default function MedicationAiCameraScreen() {
                     ) : (
                       <>
                         <Ionicons name="checkmark-circle" size={20} color="#10b981" />
-                        <Text style={styles.splitButtonLabel}>完成</Text>
+                        <Text style={styles.splitButtonLabel}>
+                          {t('medications.aiCamera.buttons.complete')}
+                        </Text>
                       </>
                     )}
                   </GlassView>
@@ -481,7 +514,9 @@ export default function MedicationAiCameraScreen() {
                     ) : (
                       <>
                         <Ionicons name="checkmark-circle" size={20} color="#10b981" />
-                        <Text style={styles.splitButtonLabel}>完成</Text>
+                        <Text style={styles.splitButtonLabel}>
+                          {t('medications.aiCamera.buttons.complete')}
+                        </Text>
                       </>
                     )}
                   </View>
@@ -501,12 +536,25 @@ export default function MedicationAiCameraScreen() {
   if (!permission.granted) {
     return (
       <View style={[styles.container, { backgroundColor: '#f8fafc' }]}>
-        <HeaderBar title="AI 用药识别" onBack={() => router.back()} transparent />
+        <HeaderBar
+          title={t('medications.aiCamera.title')}
+          onBack={() => router.back()}
+          transparent
+        />
         <View style={[styles.permissionCard, { marginTop: insets.top + 60 }]}>
-          <Text style={styles.permissionTitle}>需要相机权限</Text>
-          <Text style={styles.permissionTip}>授权后即可快速拍摄药品包装，自动识别信息</Text>
-          <TouchableOpacity style={[styles.permissionBtn, { backgroundColor: colors.primary }]} onPress={requestPermission}>
-            <Text style={styles.permissionBtnText}>授权访问相机</Text>
+          <Text style={styles.permissionTitle}>
+            {t('medications.aiCamera.permission.title')}
+          </Text>
+          <Text style={styles.permissionTip}>
+            {t('medications.aiCamera.permission.description')}
+          </Text>
+          <TouchableOpacity
+            style={[styles.permissionBtn, { backgroundColor: colors.primary }]}
+            onPress={requestPermission}
+          >
+            <Text style={styles.permissionBtnText}>
+              {t('medications.aiCamera.permission.button')}
+            </Text>
           </TouchableOpacity>
         </View>
       </View>
@@ -524,14 +572,14 @@ export default function MedicationAiCameraScreen() {
       <View style={styles.container}>
         <LinearGradient colors={['#fefefe', '#f4f7fb']} style={StyleSheet.absoluteFill} />
         <HeaderBar
-          title="AI 用药识别"
+          title={t('medications.aiCamera.title')}
           onBack={() => router.back()}
           transparent
           right={
             <TouchableOpacity
               onPress={() => setShowGuideModal(true)}
               activeOpacity={0.7}
-              accessibilityLabel="查看拍摄说明"
+              accessibilityLabel={t('medications.aiCamera.guideModal.title')}
             >
               {isLiquidGlassAvailable() ? (
                 <GlassView
@@ -556,8 +604,12 @@ export default function MedicationAiCameraScreen() {
         <View style={styles.metaBadge}>
           <Text style={styles.metaBadgeText}>{stepTitle}</Text>
         </View>
-        <Text style={styles.metaTitle}>{currentStep.title}</Text>
-        <Text style={styles.metaSubtitle}>{currentStep.subtitle}</Text>
+        <Text style={styles.metaTitle}>
+          {t(`medications.aiCamera.steps.${currentStep.key}.title`)}
+        </Text>
+        <Text style={styles.metaSubtitle}>
+          {t(`medications.aiCamera.steps.${currentStep.key}.subtitle`)}
+        </Text>
       </View>
 
       <View style={styles.cameraCard}>
@@ -587,14 +639,22 @@ export default function MedicationAiCameraScreen() {
               style={[styles.shotCard, active && styles.shotCardActive]}
             >
               <Text style={[styles.shotLabel, active && styles.shotLabelActive]}>
-                {step.title}
-                {!step.mandatory ? '(可选)' : ''}
+                {t(`medications.aiCamera.steps.${step.key}.title`)}
+                {!step.mandatory
+                  ? ` ${t('medications.aiCamera.steps.optional')}`
+                  : ''}
               </Text>
               {shot ? (
-                <Image source={{ uri: shot.uri }} style={styles.shotThumb} contentFit="cover" />
+                <Image
+                  source={{ uri: shot.uri }}
+                  style={styles.shotThumb}
+                  contentFit="cover"
+                />
               ) : (
                 <View style={styles.shotPlaceholder}>
-                  <Text style={styles.shotPlaceholderText}>未拍摄</Text>
+                  <Text style={styles.shotPlaceholderText}>
+                    {t('medications.aiCamera.steps.notTaken')}
+                  </Text>
                 </View>
               )}
             </TouchableOpacity>
@@ -617,12 +677,16 @@ export default function MedicationAiCameraScreen() {
                 isInteractive={true}
               >
                 <Ionicons name="images-outline" size={20} color="#0f172a" />
-                <Text style={styles.secondaryBtnText}>从相册</Text>
+                <Text style={styles.secondaryBtnText}>
+                  {t('medications.aiCamera.buttons.album')}
+                </Text>
               </GlassView>
             ) : (
               <View style={[styles.secondaryBtn, styles.fallbackSecondaryBtn]}>
                 <Ionicons name="images-outline" size={20} color="#0f172a" />
-                <Text style={styles.secondaryBtnText}>从相册</Text>
+                <Text style={styles.secondaryBtnText}>
+                  {t('medications.aiCamera.buttons.album')}
+                </Text>
               </View>
             )}
           </TouchableOpacity>

app/settings/tab-bar-config.tsx

@@ -7,11 +7,9 @@ import {
   type TabConfig,
 } from '@/store/tabBarConfigSlice';
 import { Ionicons } from '@expo/vector-icons';
-import { isLiquidGlassAvailable } from 'expo-glass-effect';
 import { LinearGradient } from 'expo-linear-gradient';
 import { useRouter } from 'expo-router';
 import React, { useCallback } from 'react';
-import { useTranslation } from 'react-i18next';
 import {
   Alert,
   ScrollView,
@@ -25,14 +23,14 @@ import {
 import { HeaderBar } from '@/components/ui/HeaderBar';
 import { IconSymbol } from '@/components/ui/IconSymbol';
 import { palette } from '@/constants/Colors';
+import { useI18n } from '@/hooks/useI18n';
 
 export default function TabBarConfigScreen() {
-  const { t } = useTranslation();
+  const { t } = useI18n();
   const router = useRouter();
   const dispatch = useAppDispatch();
   const safeAreaTop = useSafeAreaTop(60);
   const configs = useAppSelector(selectTabBarConfigs);
-  const isGlassAvailable = isLiquidGlassAvailable();
 
   // 处理开关切换
   const handleToggle = useCallback(

app/steps/detail.tsx

@@ -1,5 +1,6 @@
 import { DateSelector } from '@/components/DateSelector';
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { getMonthDaysZh, getTodayIndexInMonth } from '@/utils/date';
 import { fetchHourlyStepSamples, fetchStepCount, HourlyStepData } from '@/utils/health';
@@ -17,6 +18,7 @@ import {
 } from 'react-native';
 
 export default function StepsDetailScreen() {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
 
   // 获取路由参数
@@ -169,11 +171,11 @@ export default function StepsDetailScreen() {
 
   // 活动等级配置
   const activityLevels = useMemo(() => [
-    { key: 'inactive', label: '不怎么动', minSteps: 0, maxSteps: 3000, color: '#B8C8D6' },
-    { key: 'light', label: '轻度活跃', minSteps: 3000, maxSteps: 7500, color: '#93C5FD' },
-    { key: 'moderate', label: '中等活跃', minSteps: 7500, maxSteps: 10000, color: '#FCD34D' },
-    { key: 'very_active', label: '非常活跃', minSteps: 10000, maxSteps: Infinity, color: '#FB923C' }
-  ], []);
+    { key: 'inactive', label: t('stepsDetail.activityLevel.levels.inactive'), minSteps: 0, maxSteps: 3000, color: '#B8C8D6' },
+    { key: 'light', label: t('stepsDetail.activityLevel.levels.light'), minSteps: 3000, maxSteps: 7500, color: '#93C5FD' },
+    { key: 'moderate', label: t('stepsDetail.activityLevel.levels.moderate'), minSteps: 7500, maxSteps: 10000, color: '#FCD34D' },
+    { key: 'very_active', label: t('stepsDetail.activityLevel.levels.very_active'), minSteps: 10000, maxSteps: Infinity, color: '#FB923C' }
+  ], [t]);
 
   // 计算当前活动等级
   const currentActivityLevel = useMemo(() => {
@@ -211,7 +213,7 @@ export default function StepsDetailScreen() {
       />
 
       <HeaderBar
-        title="步数详情"
+        title={t('stepsDetail.title')}
       />
 
       <ScrollView
@@ -233,23 +235,23 @@ export default function StepsDetailScreen() {
         <View style={styles.statsCard}>
           {isLoading ? (
             <View style={styles.loadingContainer}>
-              <Text style={styles.loadingText}>加载中...</Text>
+              <Text style={styles.loadingText}>{t('stepsDetail.loading')}</Text>
             </View>
           ) : (
             <View style={styles.statsRow}>
               <View style={styles.statItem}>
                 <Text style={styles.statValue}>{totalSteps.toLocaleString()}</Text>
-                <Text style={styles.statLabel}>总步数</Text>
+                <Text style={styles.statLabel}>{t('stepsDetail.stats.totalSteps')}</Text>
               </View>
               <View style={styles.statItem}>
                 <Text style={styles.statValue}>{averageHourlySteps}</Text>
-                <Text style={styles.statLabel}>平均每小时</Text>
+                <Text style={styles.statLabel}>{t('stepsDetail.stats.averagePerHour')}</Text>
               </View>
               <View style={styles.statItem}>
                 <Text style={styles.statValue}>
                   {mostActiveHour ? `${mostActiveHour.hour}:00` : '--'}
                 </Text>
-                <Text style={styles.statLabel}>最活跃时段</Text>
+                <Text style={styles.statLabel}>{t('stepsDetail.stats.mostActiveTime')}</Text>
               </View>
             </View>
           )}
@@ -258,7 +260,7 @@ export default function StepsDetailScreen() {
         {/* 详细柱状图卡片 */}
         <View style={styles.chartCard}>
           <View style={styles.chartHeader}>
-            <Text style={styles.chartTitle}>每小时步数分布</Text>
+            <Text style={styles.chartTitle}>{t('stepsDetail.chart.title')}</Text>
             <Text style={styles.chartSubtitle}>
               {dayjs(currentSelectedDate).format('YYYY年MM月DD日')}
             </Text>
@@ -290,7 +292,7 @@ export default function StepsDetailScreen() {
                   ))}
                 </View>
                 <Text style={styles.averageLineLabel}>
-                  平均 {averageHourlySteps}步
+                  {t('stepsDetail.chart.averageLabel', { steps: averageHourlySteps })}
                 </Text>
               </View>
             )}
@@ -354,9 +356,9 @@ export default function StepsDetailScreen() {
 
             {/* 底部时间轴标签 */}
             <View style={styles.timeLabels}>
-              <Text style={styles.timeLabel}>0:00</Text>
-              <Text style={styles.timeLabel}>12:00</Text>
-              <Text style={styles.timeLabel}>24:00</Text>
+              <Text style={styles.timeLabel}>{t('stepsDetail.timeLabels.midnight')}</Text>
+              <Text style={styles.timeLabel}>{t('stepsDetail.timeLabels.noon')}</Text>
+              <Text style={styles.timeLabel}>{t('stepsDetail.timeLabels.nextDay')}</Text>
             </View>
           </View>
         </View>
@@ -366,7 +368,7 @@ export default function StepsDetailScreen() {
 
 
           {/* 活动级别文本 */}
-          <Text style={styles.activityMainText}>你今天的活动量处于</Text>
+          <Text style={styles.activityMainText}>{t('stepsDetail.activityLevel.currentActivity')}</Text>
           <Text style={styles.activityLevelText}>{currentActivityLevel.label}</Text>
 
           {/* 进度条 */}
@@ -388,14 +390,14 @@ export default function StepsDetailScreen() {
           <View style={styles.stepsInfoContainer}>
             <View style={styles.currentStepsInfo}>
               <Text style={styles.stepsValue}>{totalSteps.toLocaleString()} 步</Text>
-              <Text style={styles.stepsLabel}>当前</Text>
+              <Text style={styles.stepsLabel}>{t('stepsDetail.activityLevel.progress.current')}</Text>
             </View>
             <View style={styles.nextStepsInfo}>
               <Text style={styles.stepsValue}>
                 {nextActivityLevel ? `${nextActivityLevel.minSteps.toLocaleString()} 步` : '--'}
               </Text>
               <Text style={styles.stepsLabel}>
-                {nextActivityLevel ? `下一级: ${nextActivityLevel.label}` : '已达最高级'}
+                {nextActivityLevel ? t('stepsDetail.activityLevel.progress.nextLevel', { level: nextActivityLevel.label }) : t('stepsDetail.activityLevel.progress.highestLevel')}
               </Text>
             </View>
           </View>

app/water/detail.tsx

@@ -3,6 +3,7 @@ import { useColorScheme } from '@/hooks/useColorScheme';
 import { useWaterDataByDate } from '@/hooks/useWaterData';
 import { getQuickWaterAmount } from '@/utils/userPreferences';
 import { Ionicons } from '@expo/vector-icons';
+import { GlassView, isLiquidGlassAvailable } from 'expo-glass-effect';
 import { Image } from 'expo-image';
 import { LinearGradient } from 'expo-linear-gradient';
 import { router, useLocalSearchParams } from 'expo-router';
@@ -20,6 +21,7 @@ import {
 import { Swipeable } from 'react-native-gesture-handler';
 
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import dayjs from 'dayjs';
 
@@ -28,6 +30,7 @@ interface WaterDetailProps {
 }
 
 const WaterDetail: React.FC<WaterDetailProps> = () => {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
 
   const { selectedDate } = useLocalSearchParams<{ selectedDate?: string }>();
@@ -37,22 +40,14 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
   const [dailyGoal, setDailyGoal] = useState<string>('2000');
   const [quickAddAmount, setQuickAddAmount] = useState<string>('250');
 
-  // Remove modal states as they are now in separate settings page
-
   // 使用新的 hook 来处理指定日期的饮水数据
   const { waterRecords, dailyWaterGoal, updateWaterGoal, removeWaterRecord } = useWaterDataByDate(selectedDate);
 
-
-
-
   // 处理设置按钮点击 - 跳转到设置页面
   const handleSettingsPress = () => {
     router.push('/water/settings');
   };
 
-  // Remove all modal-related functions as they are now in separate settings page
-
-
   // 删除饮水记录
   const handleDeleteRecord = async (recordId: string) => {
     await removeWaterRecord(recordId);
@@ -70,13 +65,17 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
           setDailyGoal(dailyWaterGoal.toString());
         }
       } catch (error) {
-        console.error('加载用户偏好设置失败:', error);
+        console.error(t('waterDetail.loadingUserPreferences'), error);
       }
     };
 
     loadUserPreferences();
   }, [dailyWaterGoal]);
 
+  const totalAmount = waterRecords?.reduce((sum, record) => sum + record.amount, 0) || 0;
+  const currentGoal = dailyWaterGoal || 2000;
+  const progress = Math.min(100, (totalAmount / currentGoal) * 100);
+
   // 新增：饮水记录卡片组件
   const WaterRecordCard = ({ record, onDelete }: { record: any; onDelete: () => void }) => {
     const swipeableRef = React.useRef<Swipeable>(null);
@@ -84,15 +83,15 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
     // 处理删除操作
     const handleDelete = () => {
       Alert.alert(
-        '确认删除',
-        '确定要删除这条饮水记录吗？此操作无法撤销。',
+        t('waterDetail.deleteConfirm.title'),
+        t('waterDetail.deleteConfirm.message'),
         [
           {
-            text: '取消',
+            text: t('waterDetail.deleteConfirm.cancel'),
             style: 'cancel',
           },
           {
-            text: '删除',
+            text: t('waterDetail.deleteConfirm.confirm'),
             style: 'destructive',
             onPress: () => {
               onDelete();
@@ -112,7 +111,6 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
           activeOpacity={0.8}
         >
           <Ionicons name="trash" size={20} color="#FFFFFF" />
-          <Text style={styles.deleteSwipeButtonText}>删除</Text>
         </TouchableOpacity>
       );
     };
@@ -125,29 +123,29 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
           rightThreshold={40}
           overshootRight={false}
         >
-          <View style={[styles.recordCard, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}>
+          <View style={styles.recordCard}>
             <View style={styles.recordMainContent}>
-              <View style={[styles.recordIconContainer, { backgroundColor: colorTokens.background }]}>
+              <View style={styles.recordIconContainer}>
                 <Image
                   source={require('@/assets/images/icons/IconGlass.png')}
                   style={styles.recordIcon}
                 />
               </View>
               <View style={styles.recordInfo}>
-                <Text style={[styles.recordLabel, { color: colorTokens.text }]}>水</Text>
+                <Text style={styles.recordLabel}>{t('waterDetail.water')}</Text>
                 <View style={styles.recordTimeContainer}>
-                  <Ionicons name="time-outline" size={14} color={colorTokens.textSecondary} />
-                  <Text style={[styles.recordTimeText, { color: colorTokens.textSecondary }]}>
+                  <Ionicons name="time-outline" size={14} color="#6f7ba7" />
+                  <Text style={styles.recordTimeText}>
                     {dayjs(record.recordedAt || record.createdAt).format('HH:mm')}
                   </Text>
                 </View>
               </View>
               <View style={styles.recordAmountContainer}>
-                <Text style={[styles.recordAmount, { color: colorTokens.text }]}>{record.amount}ml</Text>
+                <Text style={styles.recordAmount}>{record.amount}ml</Text>
               </View>
             </View>
             {record.note && (
-              <Text style={[styles.recordNote, { color: colorTokens.textSecondary }]}>{record.note}</Text>
+              <Text style={styles.recordNote}>{record.note}</Text>
             )}
           </View>
         </Swipeable>
@@ -157,32 +155,47 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
 
   return (
     <View style={styles.container}>
-      {/* 背景渐变 */}
+      {/* 背景 */}
       <LinearGradient
-        colors={['#f5e5fbff', '#e5fcfeff', '#eefdffff', '#e6f6fcff']}
-        style={styles.gradientBackground}
-        start={{ x: 0, y: 0 }}
-        end={{ x: 0, y: 1 }}
+        colors={['#f3f4fb', '#f3f4fb']} 
+        style={StyleSheet.absoluteFillObject}
+      />
+      {/* 顶部装饰性渐变 - 模仿挑战页面的柔和背景感 */}
+       <LinearGradient
+        colors={['rgba(229, 252, 254, 0.8)', 'rgba(243, 244, 251, 0)']}
+        style={styles.topGradient}
+        start={{ x: 0.5, y: 0 }}
+        end={{ x: 0.5, y: 1 }}
       />
 
-      {/* 装饰性圆圈 */}
-      <View style={styles.decorativeCircle1} />
-      <View style={styles.decorativeCircle2} />
-
       <HeaderBar
-        title="饮水详情"
-        onBack={() => {
-          // 这里会通过路由自动处理返回
-          router.back();
-        }}
+        title={t('waterDetail.title')}
+        onBack={() => router.back()}
         right={
+          isLiquidGlassAvailable() ? (
             <TouchableOpacity
-            style={styles.settingsButton}
+              onPress={handleSettingsPress}
+              activeOpacity={0.7}
+              style={styles.settingsButtonWrapper}
+            >
+              <GlassView
+                style={styles.settingsButtonGlass}
+                glassEffectStyle="regular"
+                tintColor="rgba(255, 255, 255, 0.4)"
+                isInteractive={true}
+              >
+                <Ionicons name="settings-outline" size={22} color="#1c1f3a" />
+              </GlassView>
+            </TouchableOpacity>
+          ) : (
+            <TouchableOpacity
+              style={styles.settingsButtonFallback}
               onPress={handleSettingsPress}
               activeOpacity={0.7}
             >
-            <Ionicons name="settings-outline" size={24} color={colorTokens.text} />
+              <Ionicons name="settings-outline" size={22} color="#1c1f3a" />
             </TouchableOpacity>
+          )
         }
       />
 
@@ -197,13 +210,37 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
           }]}
           showsVerticalScrollIndicator={false}
         >
-
-          {/* 第二部分：饮水记录 */}
-          <View style={styles.section}>
-            <Text style={[styles.sectionTitle, { color: colorTokens.text }]}>
-              {selectedDate ? dayjs(selectedDate).format('MM月DD日') : '今日'}饮水记录
+          <View style={styles.headerBlock}>
+            <Text style={styles.pageTitle}>
+              {selectedDate ? dayjs(selectedDate).format('MM月DD日') : t('waterDetail.today')}
             </Text>
+            <Text style={styles.pageSubtitle}>{t('waterDetail.waterRecord')}</Text>
+          </View>
 
+          {/* 进度卡片 */}
+          <View style={styles.progressCard}>
+             <View style={styles.progressInfo}>
+                <View>
+                   <Text style={styles.progressLabel}>{t('waterDetail.total')}</Text>
+                   <Text style={styles.progressValue}>{totalAmount}<Text style={styles.progressUnit}>ml</Text></Text>
+                </View>
+                <View style={{ alignItems: 'flex-end' }}>
+                   <Text style={styles.progressLabel}>{t('waterDetail.goal')}</Text>
+                   <Text style={styles.progressGoalValue}>{currentGoal}<Text style={styles.progressUnit}>ml</Text></Text>
+                </View>
+             </View>
+             <View style={styles.progressBarBg}>
+                <LinearGradient
+                  colors={['#4F5BD5', '#6B6CFF']}
+                  start={{ x: 0, y: 0 }}
+                  end={{ x: 1, y: 0 }}
+                  style={[styles.progressBarFill, { width: `${progress}%` }]}
+                />
+             </View>
+          </View>
+
+          {/* 记录列表 */}
+          <View style={styles.section}>
             {waterRecords && waterRecords.length > 0 ? (
               <View style={styles.recordsList}>
                 {waterRecords.map((record) => (
@@ -213,29 +250,20 @@ const WaterDetail: React.FC<WaterDetailProps> = () => {
                     onDelete={() => handleDeleteRecord(record.id)}
                   />
                 ))}
-
-                {/* 总计显示 */}
-                <View style={[styles.recordsSummary, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}>
-                  <Text style={[styles.summaryText, { color: colorTokens.text }]}>
-                    总计：{waterRecords.reduce((sum, record) => sum + record.amount, 0)}ml
-                  </Text>
-                  <Text style={[styles.summaryGoal, { color: colorTokens.textSecondary }]}>
-                    目标：{dailyWaterGoal}ml
-                  </Text>
-                </View>
               </View>
             ) : (
               <View style={styles.noRecordsContainer}>
-                <Ionicons name="water-outline" size={48} color={colorTokens.textSecondary} />
-                <Text style={[styles.noRecordsText, { color: colorTokens.textSecondary }]}>暂无饮水记录</Text>
-                <Text style={[styles.noRecordsSubText, { color: colorTokens.textSecondary }]}>点击&quot;添加记录&quot;开始记录饮水量</Text>
+                <Image 
+                  source={require('@/assets/images/icons/IconGlass.png')} 
+                  style={{ width: 60, height: 60, opacity: 0.5, marginBottom: 16 }} 
+                />
+                <Text style={styles.noRecordsText}>{t('waterDetail.noRecords')}</Text>
+                <Text style={styles.noRecordsSubText}>{t('waterDetail.noRecordsSubtitle')}</Text>
               </View>
             )}
           </View>
         </ScrollView>
       </KeyboardAvoidingView>
-
-      {/* All modals have been moved to the separate water-settings page */}
     </View>
   );
 };
@@ -245,32 +273,12 @@ const styles = StyleSheet.create({
     flex: 1,
     backgroundColor: '#f3f4fb',
   },
-  gradientBackground: {
+  topGradient: {
     position: 'absolute',
     left: 0,
     right: 0,
     top: 0,
-    bottom: 0,
-  },
-  decorativeCircle1: {
-    position: 'absolute',
-    top: 80,
-    right: 30,
-    width: 80,
-    height: 80,
-    borderRadius: 40,
-    backgroundColor: '#4F5BD5',
-    opacity: 0.08,
-  },
-  decorativeCircle2: {
-    position: 'absolute',
-    bottom: 100,
-    left: -20,
-    width: 60,
-    height: 60,
-    borderRadius: 30,
-    backgroundColor: '#4F5BD5',
-    opacity: 0.06,
+    height: 300,
   },
   keyboardAvoidingView: {
     flex: 1,
@@ -279,54 +287,107 @@ const styles = StyleSheet.create({
     flex: 1,
   },
   scrollContent: {
+    paddingBottom: 40,
+  },
+  headerBlock: {
     paddingHorizontal: 24,
-    paddingTop: 20,
-  },
-  section: {
-    marginBottom: 36,
-  },
-  sectionTitle: {
-    fontSize: 20,
-    fontWeight: '700',
+    marginTop: 10,
     marginBottom: 24,
-    letterSpacing: -0.5,
-    color: '#1c1f3a',
   },
-  subsectionTitle: {
+  pageTitle: {
+    fontSize: 28,
+    fontWeight: '800',
+    color: '#1c1f3a',
+    fontFamily: 'AliBold',
+    marginBottom: 4,
+  },
+  pageSubtitle: {
+    fontSize: 16,
+    color: '#6f7ba7',
+    fontFamily: 'AliRegular',
+  },
+  
+  // 进度卡片
+  progressCard: {
+    marginHorizontal: 24,
+    marginBottom: 32,
+    padding: 24,
+    borderRadius: 28,
+    backgroundColor: '#ffffff',
+    shadowColor: 'rgba(30, 41, 59, 0.1)',
+    shadowOffset: { width: 0, height: 10 },
+    shadowOpacity: 0.18,
+    shadowRadius: 20,
+    elevation: 8,
+  },
+  progressInfo: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    alignItems: 'flex-end',
+    marginBottom: 16,
+  },
+  progressLabel: {
+    fontSize: 14,
+    color: '#6f7ba7',
+    marginBottom: 6,
+    fontFamily: 'AliRegular',
+  },
+  progressValue: {
+    fontSize: 32,
+    fontWeight: '800',
+    color: '#4F5BD5',
+    fontFamily: 'AliBold',
+    lineHeight: 32,
+  },
+  progressGoalValue: {
+    fontSize: 24,
+    fontWeight: '700',
+    color: '#1c1f3a',
+    fontFamily: 'AliBold',
+    lineHeight: 32,
+  },
+  progressUnit: {
     fontSize: 16,
     fontWeight: '600',
-    marginBottom: 16,
-    letterSpacing: -0.3,
-    color: '#1c1f3a',
-  },
-  sectionSubtitle: {
-    fontSize: 14,
-    fontWeight: '500',
-    lineHeight: 20,
     color: '#6f7ba7',
+    marginLeft: 2,
+    fontFamily: 'AliRegular',
   },
-  // 饮水记录相关样式
+  progressBarBg: {
+    height: 12,
+    backgroundColor: '#F0F2F5',
+    borderRadius: 6,
+    overflow: 'hidden',
+  },
+  progressBarFill: {
+    height: '100%',
+    borderRadius: 6,
+  },
+
+  section: {
+    paddingHorizontal: 24,
+  },
+  
+  // 记录列表样式
   recordsList: {
     gap: 16,
   },
   recordCardContainer: {
-    // iOS 阴影效果 - 增强阴影效果
-    shadowColor: 'rgba(30, 41, 59, 0.18)',
+    shadowColor: 'rgba(30, 41, 59, 0.08)',
     shadowOffset: { width: 0, height: 8 },
-    shadowOpacity: 0.16,
-    shadowRadius: 16,
-    // Android 阴影效果
-    elevation: 6,
+    shadowOpacity: 0.12,
+    shadowRadius: 12,
+    elevation: 4,
+    marginBottom: 2, 
   },
   recordCard: {
-    borderRadius: 20,
+    borderRadius: 24,
     padding: 18,
     backgroundColor: '#ffffff',
   },
   recordMainContent: {
     flexDirection: 'row',
     alignItems: 'center',
-    justifyContent: 'space-between',
   },
   recordIconContainer: {
     width: 48,
@@ -334,7 +395,7 @@ const styles = StyleSheet.create({
     borderRadius: 16,
     alignItems: 'center',
     justifyContent: 'center',
-    backgroundColor: 'rgba(79, 91, 213, 0.08)',
+    backgroundColor: '#f5f6ff',
   },
   recordIcon: {
     width: 24,
@@ -345,15 +406,21 @@ const styles = StyleSheet.create({
     marginLeft: 16,
   },
   recordLabel: {
-    fontSize: 17,
+    fontSize: 16,
     fontWeight: '700',
     color: '#1c1f3a',
-    marginBottom: 6,
+    marginBottom: 4,
+    fontFamily: 'AliBold',
   },
   recordTimeContainer: {
     flexDirection: 'row',
     alignItems: 'center',
-    gap: 6,
+    gap: 4,
+  },
+  recordTimeText: {
+    fontSize: 13,
+    color: '#6f7ba7',
+    fontFamily: 'AliRegular',
   },
   recordAmountContainer: {
     alignItems: 'flex-end',
@@ -362,364 +429,74 @@ const styles = StyleSheet.create({
     fontSize: 18,
     fontWeight: '700',
     color: '#4F5BD5',
-  },
-  deleteSwipeButton: {
-    backgroundColor: '#EF4444',
-    justifyContent: 'center',
-    alignItems: 'center',
-    width: 80,
-    borderRadius: 16,
-    marginLeft: 12,
-  },
-  deleteSwipeButtonText: {
-    color: '#FFFFFF',
-    fontSize: 12,
-    fontWeight: '600',
-    marginTop: 4,
-  },
-  recordTimeText: {
-    fontSize: 13,
-    fontWeight: '500',
-    color: '#6f7ba7',
+    fontFamily: 'AliBold',
   },
   recordNote: {
-    marginTop: 12,
+    marginTop: 14,
     padding: 12,
-    backgroundColor: 'rgba(79, 91, 213, 0.04)',
+    backgroundColor: '#F8F9FC',
     borderRadius: 12,
-    fontSize: 14,
-    fontStyle: 'normal',
-    lineHeight: 20,
+    fontSize: 13,
+    lineHeight: 18,
     color: '#5f6a97',
+    fontFamily: 'AliRegular',
   },
-  recordsSummary: {
-    marginTop: 24,
-    padding: 20,
-    borderRadius: 20,
-    backgroundColor: '#ffffff',
-    shadowColor: 'rgba(30, 41, 59, 0.12)',
-    shadowOpacity: 0.16,
-    shadowRadius: 18,
-    shadowOffset: { width: 0, height: 10 },
-    elevation: 6,
-    flexDirection: 'row',
-    justifyContent: 'space-between',
+  deleteSwipeButton: {
+    backgroundColor: '#FF6B6B',
+    justifyContent: 'center',
     alignItems: 'center',
+    width: 70,
+    height: '100%',
+    borderRadius: 24,
+    marginLeft: 12,
   },
-  summaryText: {
-    fontSize: 16,
-    fontWeight: '700',
-    color: '#1c1f3a',
-  },
-  summaryGoal: {
-    fontSize: 14,
-    fontWeight: '600',
-    color: '#6f7ba7',
-  },
+  
   noRecordsContainer: {
     alignItems: 'center',
     justifyContent: 'center',
     paddingVertical: 60,
-    gap: 20,
+    backgroundColor: '#ffffff',
+    borderRadius: 28,
+    shadowColor: 'rgba(30, 41, 59, 0.06)',
+    shadowOffset: { width: 0, height: 4 },
+    shadowOpacity: 0.1,
+    shadowRadius: 12,
   },
   noRecordsText: {
-    fontSize: 17,
+    fontSize: 16,
     fontWeight: '600',
-    lineHeight: 24,
-    color: '#6f7ba7',
+    color: '#1c1f3a',
+    marginBottom: 8,
+    fontFamily: 'AliBold',
   },
   noRecordsSubText: {
     fontSize: 14,
-    textAlign: 'center',
-    lineHeight: 20,
     color: '#9ba3c7',
+    fontFamily: 'AliRegular',
   },
-  modalBackdrop: {
-    ...StyleSheet.absoluteFillObject,
-    backgroundColor: 'rgba(0,0,0,0.4)',
+
+  // Settings Button
+  settingsButtonWrapper: {
+    width: 40,
+    height: 40,
+    borderRadius: 20,
+    overflow: 'hidden',
   },
-  modalSheet: {
-    position: 'absolute',
-    left: 0,
-    right: 0,
-    bottom: 0,
-    padding: 16,
-    backgroundColor: '#FFFFFF',
-    borderTopLeftRadius: 16,
-    borderTopRightRadius: 16,
-    // iOS 阴影效果
-    shadowColor: '#000000',
-    shadowOffset: { width: 0, height: -2 },
-    shadowOpacity: 0.1,
-    shadowRadius: 8,
-    // Android 阴影效果
-    elevation: 16,
-  },
-  modalHandle: {
-    width: 36,
-    height: 4,
-    backgroundColor: '#E0E0E0',
-    borderRadius: 2,
-    alignSelf: 'center',
-    marginBottom: 20,
-  },
-  modalTitle: {
-    fontSize: 20,
-    fontWeight: '600',
-    textAlign: 'center',
-    marginBottom: 20,
-  },
-  pickerContainer: {
-    height: 200,
-    marginBottom: 20,
-  },
-  picker: {
-    height: 200,
-  },
-  modalActions: {
-    flexDirection: 'row',
-    justifyContent: 'flex-end',
-    gap: 12,
-  },
-  modalBtn: {
-    paddingHorizontal: 14,
-    paddingVertical: 10,
-    borderRadius: 10,
-    minWidth: 80,
+  settingsButtonGlass: {
+    width: 40,
+    height: 40,
     alignItems: 'center',
+    justifyContent: 'center',
   },
-  modalBtnPrimary: {
-    // backgroundColor will be set dynamically
-  },
-  modalBtnText: {
-    fontSize: 16,
-    fontWeight: '600',
-  },
-  modalBtnTextPrimary: {
-    // color will be set dynamically
-  },
-  settingsButton: {
+  settingsButtonFallback: {
     width: 40,
     height: 40,
     alignItems: 'center',
     justifyContent: 'center',
     borderRadius: 20,
-    backgroundColor: 'rgba(255, 255, 255, 0.24)',
+    backgroundColor: '#ffffff',
     borderWidth: 1,
-    borderColor: 'rgba(255, 255, 255, 0.45)',
-  },
-  settingsModalSheet: {
-    position: 'absolute',
-    left: 0,
-    right: 0,
-    bottom: 0,
-    padding: 16,
-    backgroundColor: '#FFFFFF',
-    borderTopLeftRadius: 16,
-    borderTopRightRadius: 16,
-    shadowColor: '#000000',
-    shadowOffset: { width: 0, height: -2 },
-    shadowOpacity: 0.1,
-    shadowRadius: 8,
-    elevation: 16,
-  },
-  settingsModalTitle: {
-    fontSize: 18,
-    fontWeight: '600',
-    textAlign: 'center',
-    marginBottom: 20,
-  },
-  settingsMenuContainer: {
-    backgroundColor: '#FFFFFF',
-    borderRadius: 12,
-    shadowColor: '#000',
-    shadowOffset: { width: 0, height: 1 },
-    shadowOpacity: 0.05,
-    shadowRadius: 4,
-    elevation: 2,
-    overflow: 'hidden',
-  },
-  settingsMenuItem: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    justifyContent: 'space-between',
-    paddingVertical: 14,
-    paddingHorizontal: 16,
-    borderBottomWidth: 1,
-    borderBottomColor: '#F1F3F4',
-  },
-  settingsMenuItemLeft: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    flex: 1,
-  },
-  settingsIconContainer: {
-    width: 32,
-    height: 32,
-    borderRadius: 6,
-    alignItems: 'center',
-    justifyContent: 'center',
-    marginRight: 12,
-  },
-  settingsMenuItemContent: {
-    flex: 1,
-  },
-  settingsMenuItemTitle: {
-    fontSize: 15,
-    fontWeight: '500',
-    marginBottom: 2,
-  },
-  settingsMenuItemSubtitle: {
-    fontSize: 12,
-    marginBottom: 4,
-  },
-  settingsMenuItemValue: {
-    fontSize: 14,
-  },
-  // 喝水提醒配置弹窗样式
-  waterReminderModalSheet: {
-    position: 'absolute',
-    left: 0,
-    right: 0,
-    bottom: 0,
-    padding: 16,
-    backgroundColor: '#FFFFFF',
-    borderTopLeftRadius: 16,
-    borderTopRightRadius: 16,
-    maxHeight: '80%',
-    shadowColor: '#000000',
-    shadowOffset: { width: 0, height: -2 },
-    shadowOpacity: 0.1,
-    shadowRadius: 8,
-    elevation: 16,
-  },
-  waterReminderContent: {
-    flex: 1,
-    marginBottom: 20,
-  },
-  waterReminderSection: {
-    marginBottom: 24,
-  },
-  waterReminderSectionHeader: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    justifyContent: 'space-between',
-    marginBottom: 8,
-  },
-  waterReminderSectionTitleContainer: {
-    flexDirection: 'row',
-    alignItems: 'center',
-    gap: 8,
-  },
-  waterReminderSectionTitle: {
-    fontSize: 16,
-    fontWeight: '600',
-  },
-  waterReminderSectionDesc: {
-    fontSize: 14,
-    lineHeight: 20,
-    marginTop: 4,
-  },
-  timeRangeContainer: {
-    flexDirection: 'row',
-    gap: 16,
-    marginTop: 16,
-  },
-  timePickerContainer: {
-    flex: 1,
-  },
-  timeLabel: {
-    fontSize: 14,
-    fontWeight: '500',
-    marginBottom: 8,
-  },
-  timePicker: {
-    paddingVertical: 12,
-    paddingHorizontal: 16,
-    borderRadius: 8,
-    flexDirection: 'row',
-    alignItems: 'center',
-    justifyContent: 'center',
-    gap: 8,
-  },
-  timePickerText: {
-    fontSize: 16,
-    fontWeight: '500',
-  },
-  timePickerIcon: {
-    opacity: 0.6,
-  },
-  intervalContainer: {
-    marginTop: 16,
-  },
-  intervalPickerContainer: {
-    backgroundColor: '#F8F9FA',
-    borderRadius: 8,
-    overflow: 'hidden',
-  },
-  intervalPicker: {
-    height: 120,
-  },
-  // 时间选择器弹窗样式
-  timePickerModalSheet: {
-    position: 'absolute',
-    left: 0,
-    right: 0,
-    bottom: 0,
-    padding: 16,
-    backgroundColor: '#FFFFFF',
-    borderTopLeftRadius: 16,
-    borderTopRightRadius: 16,
-    maxHeight: '60%',
-    shadowColor: '#000000',
-    shadowOffset: { width: 0, height: -2 },
-    shadowOpacity: 0.1,
-    shadowRadius: 8,
-    elevation: 16,
-  },
-  timePickerContent: {
-    flex: 1,
-    marginBottom: 20,
-  },
-  timePickerSection: {
-    marginBottom: 20,
-  },
-  timePickerLabel: {
-    fontSize: 16,
-    fontWeight: '600',
-    marginBottom: 12,
-    textAlign: 'center',
-  },
-  hourPickerContainer: {
-    backgroundColor: '#F8F9FA',
-    borderRadius: 8,
-    overflow: 'hidden',
-  },
-  hourPicker: {
-    height: 160,
-  },
-  timeRangePreview: {
-    backgroundColor: '#F0F8FF',
-    borderRadius: 8,
-    padding: 16,
-    marginTop: 16,
-    alignItems: 'center',
-  },
-  timeRangePreviewLabel: {
-    fontSize: 12,
-    fontWeight: '500',
-    marginBottom: 4,
-  },
-  timeRangePreviewText: {
-    fontSize: 18,
-    fontWeight: '600',
-    marginBottom: 8,
-  },
-  timeRangeWarning: {
-    fontSize: 12,
-    color: '#FF6B6B',
-    textAlign: 'center',
-    lineHeight: 18,
+    borderColor: 'rgba(0,0,0,0.05)',
   },
 });
 

app/water/reminder-settings.tsx

@@ -22,9 +22,11 @@ import {
 } from 'react-native';
 
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 
 const WaterReminderSettings: React.FC = () => {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
@@ -71,9 +73,9 @@ const WaterReminderSettings: React.FC = () => {
       setStartTimePickerVisible(false);
     } else {
       Alert.alert(
-        '时间设置提示',
-        '开始时间不能晚于或等于结束时间，请重新选择',
-        [{ text: '确定' }]
+        t('waterReminderSettings.alerts.timeValidation.title'),
+        t('waterReminderSettings.alerts.timeValidation.startTimeInvalid'),
+        [{ text: t('waterReminderSettings.buttons.confirm') }]
       );
     }
   };
@@ -91,9 +93,9 @@ const WaterReminderSettings: React.FC = () => {
       setEndTimePickerVisible(false);
     } else {
       Alert.alert(
-        '时间设置提示',
-        '结束时间不能早于或等于开始时间，请重新选择',
-        [{ text: '确定' }]
+        t('waterReminderSettings.alerts.timeValidation.title'),
+        t('waterReminderSettings.alerts.timeValidation.endTimeInvalid'),
+        [{ text: t('waterReminderSettings.buttons.confirm') }]
       );
     }
   };
@@ -125,18 +127,28 @@ const WaterReminderSettings: React.FC = () => {
 
       if (waterReminderSettings.enabled) {
         const timeInfo = `${waterReminderSettings.startTime}-${waterReminderSettings.endTime}`;
-        const intervalInfo = `每${waterReminderSettings.interval}分钟`;
+        const intervalInfo = `${waterReminderSettings.interval}${t('waterReminderSettings.labels.minutes')}`;
         Alert.alert(
-          '设置成功',
-          `喝水提醒已开启\n\n时间段：${timeInfo}\n提醒间隔：${intervalInfo}\n\n我们将在指定时间段内定期提醒您喝水`,
-          [{ text: '确定', onPress: () => router.back() }]
+          t('waterReminderSettings.alerts.success.enabled'),
+          t('waterReminderSettings.alerts.success.enabledMessage', {
+            timeRange: timeInfo,
+            interval: intervalInfo
+          }),
+          [{ text: t('waterReminderSettings.buttons.confirm'), onPress: () => router.back() }]
         );
       } else {
-        Alert.alert('设置成功', '喝水提醒已关闭', [{ text: '确定', onPress: () => router.back() }]);
+        Alert.alert(
+          t('waterReminderSettings.alerts.success.disabled'),
+          t('waterReminderSettings.alerts.success.disabledMessage'),
+          [{ text: t('waterReminderSettings.buttons.confirm'), onPress: () => router.back() }]
+        );
       }
     } catch (error) {
       console.error('保存喝水提醒设置失败:', error);
-      Alert.alert('保存失败', '无法保存喝水提醒设置，请重试');
+      Alert.alert(
+        t('waterReminderSettings.alerts.error.title'),
+        t('waterReminderSettings.alerts.error.message')
+      );
     }
   };
 
@@ -176,7 +188,7 @@ const WaterReminderSettings: React.FC = () => {
       <View style={styles.decorativeCircle2} />
 
       <HeaderBar
-        title="喝水提醒"
+        title={t('waterReminderSettings.title')}
         onBack={() => {
           router.back();
         }}
@@ -198,7 +210,7 @@ const WaterReminderSettings: React.FC = () => {
             <View style={styles.waterReminderSectionHeader}>
               <View style={styles.waterReminderSectionTitleContainer}>
                 <Ionicons name="notifications-outline" size={20} color={colorTokens.text} />
-                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>推送提醒</Text>
+                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>{t('waterReminderSettings.sections.notifications')}</Text>
               </View>
               <Switch
                 value={waterReminderSettings.enabled}
@@ -208,7 +220,7 @@ const WaterReminderSettings: React.FC = () => {
               />
             </View>
             <Text style={[styles.waterReminderSectionDesc, { color: colorTokens.textSecondary }]}>
-              开启后将在指定时间段内定期推送喝水提醒
+              {t('waterReminderSettings.descriptions.notifications')}
             </Text>
           </View>
 
@@ -216,15 +228,15 @@ const WaterReminderSettings: React.FC = () => {
           {waterReminderSettings.enabled && (
             <>
               <View style={styles.waterReminderSection}>
-                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>提醒时间段</Text>
+                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>{t('waterReminderSettings.sections.timeRange')}</Text>
                 <Text style={[styles.waterReminderSectionDesc, { color: colorTokens.textSecondary }]}>
-                  只在指定时间段内发送提醒，避免打扰您的休息
+                  {t('waterReminderSettings.descriptions.timeRange')}
                 </Text>
 
                 <View style={styles.timeRangeContainer}>
                   {/* 开始时间 */}
                   <View style={styles.timePickerContainer}>
-                    <Text style={[styles.timeLabel, { color: colorTokens.text }]}>开始时间</Text>
+                    <Text style={[styles.timeLabel, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.startTime')}</Text>
                     <Pressable
                       style={[styles.timePicker, { backgroundColor: 'white' }]}
                       onPress={openStartTimePicker}
@@ -236,7 +248,7 @@ const WaterReminderSettings: React.FC = () => {
 
                   {/* 结束时间 */}
                   <View style={styles.timePickerContainer}>
-                    <Text style={[styles.timeLabel, { color: colorTokens.text }]}>结束时间</Text>
+                    <Text style={[styles.timeLabel, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.endTime')}</Text>
                     <Pressable
                       style={[styles.timePicker, { backgroundColor: 'white' }]}
                       onPress={openEndTimePicker}
@@ -250,9 +262,9 @@ const WaterReminderSettings: React.FC = () => {
 
               {/* 提醒间隔设置 */}
               <View style={styles.waterReminderSection}>
-                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>提醒间隔</Text>
+                <Text style={[styles.waterReminderSectionTitle, { color: colorTokens.text }]}>{t('waterReminderSettings.sections.interval')}</Text>
                 <Text style={[styles.waterReminderSectionDesc, { color: colorTokens.textSecondary }]}>
-                  选择提醒的频率，建议30-120分钟为宜
+                  {t('waterReminderSettings.descriptions.interval')}
                 </Text>
 
                 <View style={styles.intervalContainer}>
@@ -263,7 +275,7 @@ const WaterReminderSettings: React.FC = () => {
                       style={styles.intervalPicker}
                     >
                       {[30, 45, 60, 90, 120, 150, 180].map(interval => (
-                        <Picker.Item key={interval} label={`${interval}分钟`} value={interval} />
+                        <Picker.Item key={interval} label={`${interval}${t('waterReminderSettings.labels.minutes')}`} value={interval} />
                       ))}
                     </Picker>
                   </View>
@@ -279,7 +291,7 @@ const WaterReminderSettings: React.FC = () => {
               onPress={handleWaterReminderSave}
               activeOpacity={0.8}
             >
-              <Text style={[styles.saveButtonText, { color: colorTokens.onPrimary }]}>保存设置</Text>
+              <Text style={[styles.saveButtonText, { color: colorTokens.onPrimary }]}>{t('waterReminderSettings.labels.saveSettings')}</Text>
             </TouchableOpacity>
           </View>
         </ScrollView>
@@ -295,11 +307,11 @@ const WaterReminderSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setStartTimePickerVisible(false)} />
         <View style={styles.timePickerModalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>选择开始时间</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.startTime')}</Text>
 
           <View style={styles.timePickerContent}>
             <View style={styles.timePickerSection}>
-              <Text style={[styles.timePickerLabel, { color: colorTokens.text }]}>小时</Text>
+              <Text style={[styles.timePickerLabel, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.hours')}</Text>
               <View style={styles.hourPickerContainer}>
                 <Picker
                   selectedValue={tempStartHour}
@@ -314,12 +326,12 @@ const WaterReminderSettings: React.FC = () => {
             </View>
 
             <View style={styles.timeRangePreview}>
-              <Text style={[styles.timeRangePreviewLabel, { color: colorTokens.textSecondary }]}>时间段预览</Text>
+              <Text style={[styles.timeRangePreviewLabel, { color: colorTokens.textSecondary }]}>{t('waterReminderSettings.labels.timeRangePreview')}</Text>
               <Text style={[styles.timeRangePreviewText, { color: colorTokens.text }]}>
                 {String(tempStartHour).padStart(2, '0')}:00 - {waterReminderSettings.endTime}
               </Text>
               {!isValidTimeRange(`${String(tempStartHour).padStart(2, '0')}:00`, waterReminderSettings.endTime) && (
-                <Text style={styles.timeRangeWarning}>⚠️ 开始时间不能晚于或等于结束时间</Text>
+                <Text style={styles.timeRangeWarning}>⚠️ {t('waterReminderSettings.alerts.timeValidation.startTimeInvalid')}</Text>
               )}
             </View>
           </View>
@@ -329,13 +341,13 @@ const WaterReminderSettings: React.FC = () => {
               onPress={() => setStartTimePickerVisible(false)}
               style={[styles.modalBtn, { backgroundColor: 'white' }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterReminderSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={confirmStartTime}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterReminderSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>
@@ -351,11 +363,11 @@ const WaterReminderSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setEndTimePickerVisible(false)} />
         <View style={styles.timePickerModalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>选择结束时间</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.endTime')}</Text>
 
           <View style={styles.timePickerContent}>
             <View style={styles.timePickerSection}>
-              <Text style={[styles.timePickerLabel, { color: colorTokens.text }]}>小时</Text>
+              <Text style={[styles.timePickerLabel, { color: colorTokens.text }]}>{t('waterReminderSettings.labels.hours')}</Text>
               <View style={styles.hourPickerContainer}>
                 <Picker
                   selectedValue={tempEndHour}
@@ -370,12 +382,12 @@ const WaterReminderSettings: React.FC = () => {
             </View>
 
             <View style={styles.timeRangePreview}>
-              <Text style={[styles.timeRangePreviewLabel, { color: colorTokens.textSecondary }]}>时间段预览</Text>
+              <Text style={[styles.timeRangePreviewLabel, { color: colorTokens.textSecondary }]}>{t('waterReminderSettings.labels.timeRangePreview')}</Text>
               <Text style={[styles.timeRangePreviewText, { color: colorTokens.text }]}>
                 {waterReminderSettings.startTime} - {String(tempEndHour).padStart(2, '0')}:00
               </Text>
               {!isValidTimeRange(waterReminderSettings.startTime, `${String(tempEndHour).padStart(2, '0')}:00`) && (
-                <Text style={styles.timeRangeWarning}>⚠️ 结束时间不能早于或等于开始时间</Text>
+                <Text style={styles.timeRangeWarning}>⚠️ {t('waterReminderSettings.alerts.timeValidation.endTimeInvalid')}</Text>
               )}
             </View>
           </View>
@@ -385,13 +397,13 @@ const WaterReminderSettings: React.FC = () => {
               onPress={() => setEndTimePickerVisible(false)}
               style={[styles.modalBtn, { backgroundColor: 'white' }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterReminderSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={confirmEndTime}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterReminderSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>

app/water/settings.tsx

@@ -21,9 +21,11 @@ import {
 } from 'react-native';
 
 import { HeaderBar } from '@/components/ui/HeaderBar';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 
 const WaterSettings: React.FC = () => {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
@@ -74,7 +76,10 @@ const WaterSettings: React.FC = () => {
     setGoalModalVisible(false);
 
     // 这里可以添加保存到本地存储或发送到后端的逻辑
-    Alert.alert('设置成功', `每日饮水目标已设置为 ${tempGoal}ml`);
+    Alert.alert(
+      t('waterSettings.alerts.goalSuccess.title'),
+      t('waterSettings.alerts.goalSuccess.message', { amount: tempGoal })
+    );
   };
 
   // 处理快速添加默认值确认
@@ -84,9 +89,15 @@ const WaterSettings: React.FC = () => {
 
     try {
       await setQuickWaterAmount(tempQuickAdd);
-      Alert.alert('设置成功', `快速添加默认值已设置为 ${tempQuickAdd}ml`);
+      Alert.alert(
+        t('waterSettings.alerts.quickAddSuccess.title'),
+        t('waterSettings.alerts.quickAddSuccess.message', { amount: tempQuickAdd })
+      );
     } catch {
-      Alert.alert('设置失败', '无法保存快速添加默认值，请重试');
+      Alert.alert(
+        t('waterSettings.alerts.quickAddFailed.title'),
+        t('waterSettings.alerts.quickAddFailed.message')
+      );
     }
   };
 
@@ -101,7 +112,7 @@ const WaterSettings: React.FC = () => {
       const reminderSettings = await getWaterReminderSettings();
       setWaterReminderSettings(reminderSettings);
     } catch (error) {
-      console.error('加载用户偏好设置失败:', error);
+      console.error('Failed to load user preferences:', error);
     }
   }, []);
 
@@ -132,7 +143,7 @@ const WaterSettings: React.FC = () => {
       <View style={styles.decorativeCircle2} />
 
       <HeaderBar
-        title="饮水设置"
+        title={t('waterSettings.title')}
         onBack={() => {
           router.back();
         }}
@@ -156,8 +167,8 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="flag-outline" size={20} color="#9370DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>每日饮水目标</Text>
-                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{currentWaterGoal}ml</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.dailyGoal')}</Text>
+                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{currentWaterGoal}{t('waterSettings.labels.ml')}</Text>
                   </View>
                 </View>
                 <Ionicons name="chevron-forward" size={20} color="#CCCCCC" />
@@ -169,11 +180,11 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="add-outline" size={20} color="#9370DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>快速添加默认值</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.quickAdd')}</Text>
                     <Text style={[styles.settingsMenuItemSubtitle, { color: colorTokens.textSecondary }]}>
-                      设置点击"+"按钮时添加的默认饮水量
+                      {t('waterSettings.descriptions.quickAdd')}
                     </Text>
-                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{quickAddAmount}ml</Text>
+                    <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>{quickAddAmount}{t('waterSettings.labels.ml')}</Text>
                   </View>
                 </View>
                 <Ionicons name="chevron-forward" size={20} color="#CCCCCC" />
@@ -185,12 +196,19 @@ const WaterSettings: React.FC = () => {
                     <Ionicons name="notifications-outline" size={20} color="#3498DB" />
                   </View>
                   <View style={styles.settingsMenuItemContent}>
-                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>喝水提醒</Text>
+                    <Text style={[styles.settingsMenuItemTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.reminder')}</Text>
                     <Text style={[styles.settingsMenuItemSubtitle, { color: colorTokens.textSecondary }]}>
-                      设置定时提醒您补充水分
+                      {t('waterSettings.descriptions.reminder')}
                     </Text>
                     <Text style={[styles.settingsMenuItemValue, { color: colorTokens.textSecondary }]}>
-                      {waterReminderSettings.enabled ? `${waterReminderSettings.startTime}-${waterReminderSettings.endTime}, 每${waterReminderSettings.interval}分钟` : '已关闭'}
+                      {waterReminderSettings.enabled
+                        ? t('waterSettings.status.reminderEnabled', {
+                            startTime: waterReminderSettings.startTime,
+                            endTime: waterReminderSettings.endTime,
+                            interval: waterReminderSettings.interval
+                          })
+                        : t('waterSettings.labels.disabled')
+                      }
                     </Text>
                   </View>
                 </View>
@@ -211,7 +229,7 @@ const WaterSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setGoalModalVisible(false)} />
         <View style={styles.modalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>每日饮水目标</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.dailyGoal')}</Text>
           <View style={styles.pickerContainer}>
             <Picker
               selectedValue={tempGoal}
@@ -219,7 +237,7 @@ const WaterSettings: React.FC = () => {
               style={styles.picker}
             >
               {Array.from({ length: 96 }, (_, i) => 500 + i * 100).map(goal => (
-                <Picker.Item key={goal} label={`${goal}ml`} value={goal} />
+                <Picker.Item key={goal} label={`${goal}${t('waterSettings.labels.ml')}`} value={goal} />
               ))}
             </Picker>
           </View>
@@ -228,13 +246,13 @@ const WaterSettings: React.FC = () => {
               onPress={() => setGoalModalVisible(false)}
               style={[styles.modalBtn, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={handleGoalConfirm}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>
@@ -250,7 +268,7 @@ const WaterSettings: React.FC = () => {
         <Pressable style={styles.modalBackdrop} onPress={() => setQuickAddModalVisible(false)} />
         <View style={styles.modalSheet}>
           <View style={styles.modalHandle} />
-          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>快速添加默认值</Text>
+          <Text style={[styles.modalTitle, { color: colorTokens.text }]}>{t('waterSettings.sections.quickAdd')}</Text>
           <View style={styles.pickerContainer}>
             <Picker
               selectedValue={tempQuickAdd}
@@ -258,7 +276,7 @@ const WaterSettings: React.FC = () => {
               style={styles.picker}
             >
               {Array.from({ length: 41 }, (_, i) => 50 + i * 10).map(amount => (
-                <Picker.Item key={amount} label={`${amount}ml`} value={amount} />
+                <Picker.Item key={amount} label={`${amount}${t('waterSettings.labels.ml')}`} value={amount} />
               ))}
             </Picker>
           </View>
@@ -267,13 +285,13 @@ const WaterSettings: React.FC = () => {
               onPress={() => setQuickAddModalVisible(false)}
               style={[styles.modalBtn, { backgroundColor: colorTokens.pageBackgroundEmphasis }]}
             >
-              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>取消</Text>
+              <Text style={[styles.modalBtnText, { color: colorTokens.text }]}>{t('waterSettings.buttons.cancel')}</Text>
             </Pressable>
             <Pressable
               onPress={handleQuickAddConfirm}
               style={[styles.modalBtn, styles.modalBtnPrimary, { backgroundColor: colorTokens.primary }]}
             >
-              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>确定</Text>
+              <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary, { color: colorTokens.onPrimary }]}>{t('waterSettings.buttons.confirm')}</Text>
             </Pressable>
           </View>
         </View>

app/weight-records.tsx

@@ -5,6 +5,7 @@ import { Colors } from '@/constants/Colors';
 import { getTabBarBottomPadding } from '@/constants/TabBar';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { appStoreReviewService } from '@/services/appStoreReview';
 import { deleteWeightRecord, fetchWeightHistory, updateUserProfile, updateWeightRecord, WeightHistoryItem } from '@/store/userSlice';
@@ -24,6 +25,7 @@ import {
 } from 'react-native';
 
 export default function WeightRecordsPage() {
+  const { t } = useI18n();
   const safeAreaTop = useSafeAreaTop()
 
   const dispatch = useAppDispatch();
@@ -43,7 +45,7 @@ export default function WeightRecordsPage() {
     try {
       await dispatch(fetchWeightHistory() as any);
     } catch (error) {
-      console.error('加载体重历史失败:', error);
+      console.error(t('weightRecords.loadingHistory'), error);
     }
   }, [dispatch]);
 
@@ -92,15 +94,15 @@ export default function WeightRecordsPage() {
       await dispatch(deleteWeightRecord(id) as any);
       await loadWeightHistory();
     } catch (error) {
-      console.error('删除体重记录失败:', error);
-      Alert.alert('错误', '删除体重记录失败，请重试');
+      console.error(t('weightRecords.alerts.deleteFailed'), error);
+      Alert.alert('错误', t('weightRecords.alerts.deleteFailed'));
     }
   };
 
   const handleWeightSave = async () => {
     const weight = parseFloat(inputWeight);
     if (isNaN(weight) || weight <= 0 || weight > 500) {
-      alert('请输入有效的体重值（0-500kg）');
+      alert(t('weightRecords.alerts.invalidWeight'));
       return;
     }
 
@@ -130,8 +132,8 @@ export default function WeightRecordsPage() {
       setEditingRecord(null);
       await loadWeightHistory();
     } catch (error) {
-      console.error('保存体重失败:', error);
-      Alert.alert('错误', '保存体重失败，请重试');
+      console.error(t('weightRecords.alerts.saveFailed'), error);
+      Alert.alert('错误', t('weightRecords.alerts.saveFailed'));
     }
   };
 
@@ -190,7 +192,7 @@ export default function WeightRecordsPage() {
       />
 
       <HeaderBar
-        title="体重记录"
+        title={t('weightRecords.title')}
         right={<TouchableOpacity onPress={handleAddWeight} style={styles.addButton}>
           <Ionicons name="add" size={24} color="#192126" />
         </TouchableOpacity>}
@@ -204,27 +206,27 @@ export default function WeightRecordsPage() {
         <View style={styles.statsRow}>
           <View style={styles.statItem}>
             <Text style={styles.statValue}>{totalWeightLoss.toFixed(1)}kg</Text>
-            <Text style={styles.statLabel}>累计减重</Text>
+            <Text style={styles.statLabel}>{t('weightRecords.stats.totalLoss')}</Text>
           </View>
           <View style={styles.statItem}>
             <Text style={styles.statValue}>{currentWeight.toFixed(1)}kg</Text>
-            <Text style={styles.statLabel}>当前体重</Text>
+            <Text style={styles.statLabel}>{t('weightRecords.stats.currentWeight')}</Text>
           </View>
           <View style={styles.statItem}>
             <Text style={styles.statValue}>{initialWeight.toFixed(1)}kg</Text>
             <View style={styles.statLabelContainer}>
-              <Text style={styles.statLabel}>初始体重</Text>
+              <Text style={styles.statLabel}>{t('weightRecords.stats.initialWeight')}</Text>
               <TouchableOpacity onPress={handleEditInitialWeight} style={styles.editIcon}>
-                <Ionicons name="create-outline" size={14} color="#FF9500" />
+                <Ionicons name="create-outline" size={12} color="#FF9500" />
               </TouchableOpacity>
             </View>
           </View>
           <View style={styles.statItem}>
             <Text style={styles.statValue}>{targetWeight.toFixed(1)}kg</Text>
             <View style={styles.statLabelContainer}>
-              <Text style={styles.statLabel}>目标体重</Text>
+              <Text style={styles.statLabel}>{t('weightRecords.stats.targetWeight')}</Text>
               <TouchableOpacity onPress={handleEditTargetWeight} style={styles.editIcon}>
-                <Ionicons name="create-outline" size={14} color="#FF9500" />
+                <Ionicons name="create-outline" size={12} color="#FF9500" />
               </TouchableOpacity>
             </View>
           </View>
@@ -282,8 +284,8 @@ export default function WeightRecordsPage() {
         ) : (
           <View style={styles.emptyContainer}>
             <View style={styles.emptyContent}>
-              <Text style={styles.emptyText}>暂无体重记录</Text>
-              <Text style={styles.emptySubtext}>点击右上角添加按钮开始记录</Text>
+              <Text style={styles.emptyText}>{t('weightRecords.empty.title')}</Text>
+              <Text style={styles.emptySubtext}>{t('weightRecords.empty.subtitle')}</Text>
             </View>
           </View>
         )}
@@ -309,10 +311,10 @@ export default function WeightRecordsPage() {
                 <Ionicons name="close" size={24} color={themeColors.text} />
               </TouchableOpacity>
               <Text style={[styles.modalTitle, { color: themeColors.text }]}>
-                {pickerType === 'current' && '记录体重'}
-                {pickerType === 'initial' && '编辑初始体重'}
-                {pickerType === 'target' && '编辑目标体重'}
-                {pickerType === 'edit' && '编辑体重记录'}
+                {pickerType === 'current' && t('weightRecords.modal.recordWeight')}
+                {pickerType === 'initial' && t('weightRecords.modal.editInitialWeight')}
+                {pickerType === 'target' && t('weightRecords.modal.editTargetWeight')}
+                {pickerType === 'edit' && t('weightRecords.modal.editRecord')}
               </Text>
               <View style={{ width: 24 }} />
             </View>
@@ -329,21 +331,21 @@ export default function WeightRecordsPage() {
                   </View>
                   <View style={styles.inputWrapper}>
                     <Text style={[styles.weightDisplay, { color: inputWeight ? themeColors.text : themeColors.textSecondary }]}>
-                      {inputWeight || '输入体重'}
+                      {inputWeight || t('weightRecords.modal.inputPlaceholder')}
                     </Text>
-                    <Text style={[styles.unitLabel, { color: themeColors.textSecondary }]}>kg</Text>
+                    <Text style={[styles.unitLabel, { color: themeColors.textSecondary }]}>{t('weightRecords.modal.unit')}</Text>
                   </View>
                 </View>
 
                 {/* Weight Range Hint */}
                 <Text style={[styles.hintText, { color: themeColors.textSecondary }]}>
-                  请输入 0-500 之间的数值，支持小数
+                  {t('weightRecords.modal.inputHint')}
                 </Text>
               </View>
 
               {/* Quick Selection */}
               <View style={styles.quickSelectionSection}>
-                <Text style={[styles.quickSelectionTitle, { color: themeColors.text }]}>快速选择</Text>
+                <Text style={[styles.quickSelectionTitle, { color: themeColors.text }]}>{t('weightRecords.modal.quickSelection')}</Text>
                 <View style={styles.quickButtons}>
                   {[50, 60, 70, 80, 90].map((weight) => (
                     <TouchableOpacity
@@ -358,7 +360,7 @@ export default function WeightRecordsPage() {
                         styles.quickButtonText,
                         inputWeight === weight.toString() && styles.quickButtonTextSelected
                       ]}>
-                        {weight}kg
+                        {weight}{t('weightRecords.modal.unit')}
                       </Text>
                     </TouchableOpacity>
                   ))}
@@ -386,7 +388,7 @@ export default function WeightRecordsPage() {
                 onPress={handleWeightSave}
                 disabled={!inputWeight.trim()}
               >
-                <Text style={styles.saveButtonText}>确定</Text>
+                <Text style={styles.saveButtonText}>{t('weightRecords.modal.confirm')}</Text>
               </TouchableOpacity>
             </View>
           </View>
@@ -461,7 +463,7 @@ const styles = StyleSheet.create({
     alignItems: 'center',
   },
   statValue: {
-    fontSize: 16,
+    fontSize: 14,
     fontWeight: '800',
     color: '#192126',
     marginBottom: 4,
@@ -475,6 +477,7 @@ const styles = StyleSheet.create({
     fontSize: 12,
     color: '#687076',
     marginRight: 4,
+    textAlign: 'center'
   },
   editIcon: {
     padding: 2,

app/workout/history.tsx

@@ -16,6 +16,7 @@ import {
 import { HeaderBar } from '@/components/ui/HeaderBar';
 import { IntensityBadge, WorkoutDetailModal } from '@/components/workout/WorkoutDetailModal';
 
+import { useI18n } from '@/hooks/useI18n';
 import { useSafeAreaTop } from '@/hooks/useSafeAreaWithPadding';
 import { getWorkoutDetailMetrics, WorkoutDetailMetrics } from '@/services/workoutDetail';
 import {
@@ -233,23 +234,23 @@ function computeMonthlyStats(workouts: WorkoutData[]): MonthlyStatsInfo | null {
   };
 }
 
-function getIntensityBadge(totalCalories?: number, durationInSeconds?: number) {
+function getIntensityBadge(t: (key: string, options?: any) => string, totalCalories?: number, durationInSeconds?: number): { label: string; color: string; background: string } {
   if (!totalCalories || !durationInSeconds) {
-    return { label: '低强度', color: '#7C85A3', background: '#E4E7F2' };
+    return { label: t('workoutHistory.intensity.low'), color: '#7C85A3', background: '#E4E7F2' };
   }
 
   const minutes = Math.max(durationInSeconds / 60, 1);
   const caloriesPerMinute = totalCalories / minutes;
 
   if (caloriesPerMinute >= 9) {
-    return { label: '高强度', color: '#F85959', background: '#FFE6E6' };
+    return { label: t('workoutHistory.intensity.high'), color: '#F85959', background: '#FFE6E6' };
   }
 
   if (caloriesPerMinute >= 5) {
-    return { label: '中强度', color: '#0EAF71', background: '#E4F6EF' };
+    return { label: t('workoutHistory.intensity.medium'), color: '#0EAF71', background: '#E4F6EF' };
   }
 
-  return { label: '低强度', color: '#5966FF', background: '#E7EBFF' };
+  return { label: t('workoutHistory.intensity.low'), color: '#5966FF', background: '#E7EBFF' };
 }
 
 function groupWorkouts(workouts: WorkoutData[]): WorkoutSection[] {
@@ -265,13 +266,14 @@ function groupWorkouts(workouts: WorkoutData[]): WorkoutSection[] {
   return Object.keys(grouped)
     .sort((a, b) => dayjs(b).valueOf() - dayjs(a).valueOf())
     .map((dateKey) => ({
-      title: dayjs(dateKey).format('M月D日'),
+      title: dayjs(dateKey).format('M月D日'), // 保持中文格式，因为这是日期格式
       data: grouped[dateKey]
         .sort((a, b) => dayjs(b.startDate || b.endDate).valueOf() - dayjs(a.startDate || a.endDate).valueOf()),
     }));
 }
 
 export default function WorkoutHistoryScreen() {
+  const { t } = useI18n();
   const [sections, setSections] = useState<WorkoutSection[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
@@ -284,7 +286,7 @@ export default function WorkoutHistoryScreen() {
   const [monthOccurrenceText, setMonthOccurrenceText] = useState<string | null>(null);
   const [monthlyStats, setMonthlyStats] = useState<MonthlyStatsInfo | null>(null);
 
-  const safeAreaTop = useSafeAreaTop()
+  const safeAreaTop = useSafeAreaTop();
 
   const loadHistory = useCallback(async () => {
     setIsLoading(true);
@@ -302,7 +304,7 @@ export default function WorkoutHistoryScreen() {
 
       if (!hasPermission) {
         setSections([]);
-        setError('尚未授予健康数据权限');
+        setError(t('workoutHistory.error.permissionDenied'));
         setMonthlyStats(null);
         return;
       }
@@ -315,8 +317,8 @@ export default function WorkoutHistoryScreen() {
       setMonthlyStats(computeMonthlyStats(filteredWorkouts));
       setSections(groupWorkouts(filteredWorkouts));
     } catch (err) {
-      console.error('加载锻炼历史失败:', err);
-      setError('加载锻炼记录失败，请稍后再试');
+      console.error('Failed to load workout history:', err);
+      setError(t('workoutHistory.error.loadFailed'));
       setSections([]);
       setMonthlyStats(null);
     } finally {
@@ -350,9 +352,9 @@ export default function WorkoutHistoryScreen() {
       ? dayjs(monthlyStats.snapshotDate).format('M月D日')
       : dayjs().format('M月D日');
     const overviewText = monthlyStats
-      ? `截至${snapshotLabel}，你已完成${monthlyStats.totalCount}次锻炼，累计${formatDurationShort(monthlyStats.totalDuration)}。`
-      : '本月还没有锻炼记录，动起来收集第一条吧！';
-    const periodText = `统计周期：1日 - ${monthEndDay}日（本月）`;
+      ? t('workoutHistory.monthlyStats.overviewWithStats', { date: snapshotLabel, count: monthlyStats.totalCount, duration: formatDurationShort(monthlyStats.totalDuration) })
+      : t('workoutHistory.monthlyStats.overviewEmpty');
+    const periodText = t('workoutHistory.monthlyStats.periodText', { day: monthEndDay });
     const maxDuration = statsItems[0]?.duration || 1;
 
     return (
@@ -369,7 +371,7 @@ export default function WorkoutHistoryScreen() {
               end={{ x: 1, y: 1 }}
               style={styles.monthlyStatsCard}
             >
-              <Text style={styles.statSectionLabel}>锻炼时间</Text>
+              <Text style={styles.statSectionLabel}>{t('workoutHistory.monthlyStats.title')}</Text>
               <Text style={styles.statPeriodText}>{periodText}</Text>
               <Text style={styles.statDescription}>{overviewText}</Text>
 
@@ -403,7 +405,7 @@ export default function WorkoutHistoryScreen() {
               ) : (
                 <View style={styles.statEmptyState}>
                   <MaterialCommunityIcons name="calendar-blank" size={20} color="#7C85A3" />
-                  <Text style={styles.statEmptyText}>本月还没有锻炼数据</Text>
+                  <Text style={styles.statEmptyText}>{t('workoutHistory.monthlyStats.emptyData')}</Text>
                 </View>
               )}
             </LinearGradient>
@@ -416,8 +418,8 @@ export default function WorkoutHistoryScreen() {
   const emptyComponent = useMemo(() => (
     <View style={styles.emptyContainer}>
       <MaterialCommunityIcons name="calendar-blank" size={40} color="#9AA4C4" />
-      <Text style={styles.emptyText}>暂无锻炼记录</Text>
-      <Text style={styles.emptySubText}>完成一次锻炼后即可在此查看详细历史</Text>
+      <Text style={styles.emptyText}>{t('workoutHistory.empty.title')}</Text>
+      <Text style={styles.emptySubText}>{t('workoutHistory.empty.subtitle')}</Text>
     </View>
   ), []);
 
@@ -453,7 +455,7 @@ export default function WorkoutHistoryScreen() {
     }
 
     const activityLabel = getWorkoutTypeDisplayName(workout.workoutActivityType);
-    return `这是你${workoutDate.format('M月')}的第 ${index + 1} 次${activityLabel}。`;
+    return t('workoutHistory.monthOccurrence', { month: workoutDate.format('M月'), index: index + 1, activity: activityLabel });
   }, [sections]);
 
   const loadWorkoutDetail = useCallback(async (workout: WorkoutData) => {
@@ -463,16 +465,16 @@ export default function WorkoutHistoryScreen() {
       const metrics = await getWorkoutDetailMetrics(workout);
       setDetailMetrics(metrics);
     } catch (err) {
-      console.error('加载锻炼详情失败:', err);
+      console.error('Failed to load workout details:', err);
       setDetailMetrics(null);
-      setDetailError('加载锻炼详情失败，请稍后再试');
+      setDetailError(t('workoutHistory.error.detailLoadFailed'));
     } finally {
       setDetailLoading(false);
     }
   }, []);
 
   const handleWorkoutPress = useCallback((workout: WorkoutData) => {
-    const intensity = getIntensityBadge(workout.totalEnergyBurned, workout.duration || 0);
+    const intensity = getIntensityBadge(t, workout.totalEnergyBurned, workout.duration || 0);
     setSelectedIntensity(intensity);
     setSelectedWorkout(workout);
     setDetailMetrics(null);
@@ -495,7 +497,7 @@ export default function WorkoutHistoryScreen() {
   const renderItem = useCallback(({ item }: { item: WorkoutData }) => {
     const calories = Math.round(item.totalEnergyBurned || 0);
     const minutes = Math.max(Math.round((item.duration || 0) / 60), 1);
-    const intensity = getIntensityBadge(item.totalEnergyBurned, item.duration || 0);
+    const intensity = getIntensityBadge(t, item.totalEnergyBurned, item.duration || 0);
     const iconName = ICON_MAP[item.workoutActivityType as WorkoutActivityType] || 'arm-flex';
     const time = dayjs(item.startDate || item.endDate).format('HH:mm');
     const activityLabel = getWorkoutTypeDisplayName(item.workoutActivityType);
@@ -512,12 +514,12 @@ export default function WorkoutHistoryScreen() {
 
         <View style={styles.cardContent}>
           <View style={styles.cardTitleRow}>
-            <Text style={styles.cardTitle}>{calories}千卡 · {minutes}分钟</Text>
+            <Text style={styles.cardTitle}>{t('workoutHistory.historyCard.calories', { calories, minutes })}</Text>
             <View style={[styles.intensityBadge, { backgroundColor: intensity.background }]}>
               <Text style={[styles.intensityText, { color: intensity.color }]}>{intensity.label}</Text>
             </View>
           </View>
-          <Text style={styles.cardSubtitle}>{activityLabel}，{time}</Text>
+          <Text style={styles.cardSubtitle}>{t('workoutHistory.historyCard.activityTime', { activity: activityLabel, time })}</Text>
         </View>
 
         {/* <Ionicons name="chevron-forward" size={20} color="#9AA4C4" /> */}
@@ -535,11 +537,11 @@ export default function WorkoutHistoryScreen() {
         colors={["#F3F5FF", "#FFFFFF"]}
         style={StyleSheet.absoluteFill}
       />
-      <HeaderBar title="锻炼总结" variant="minimal" transparent={true} />
+      <HeaderBar title={t('workoutHistory.title')} variant="minimal" transparent={true} />
       {isLoading ? (
         <View style={styles.loadingContainer}>
           <ActivityIndicator size="large" color="#5C55FF" />
-          <Text style={styles.loadingText}>正在加载锻炼记录...</Text>
+          <Text style={styles.loadingText}>{t('workoutHistory.loading')}</Text>
         </View>
       ) : (
         <SectionList
@@ -556,7 +558,7 @@ export default function WorkoutHistoryScreen() {
               <MaterialCommunityIcons name="alert-circle" size={40} color="#F85959" />
               <Text style={[styles.emptyText, { color: '#F85959' }]}>{error}</Text>
               <TouchableOpacity style={styles.retryButton} onPress={loadHistory}>
-                <Text style={styles.retryText}>重试</Text>
+                <Text style={styles.retryText}>{t('workoutHistory.retry')}</Text>
               </TouchableOpacity>
             </View>
           ) : emptyComponent}

components/DateSelector.tsx

@@ -1,4 +1,5 @@
-import { getMonthDaysZh, getMonthTitleZh, getTodayIndexInMonth } from '@/utils/date';
+import { useI18n } from '@/hooks/useI18n';
+import { getMonthDays, getMonthTitle, getTodayIndexInMonth } from '@/utils/date';
 import { Ionicons } from '@expo/vector-icons';
 import DateTimePicker from '@react-native-community/datetimepicker';
 import dayjs from 'dayjs';
@@ -50,6 +51,8 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
   autoScrollToSelected = true,
   showCalendarIcon = true,
 }) => {
+  const { t, i18n } = useI18n();
+  
   // 内部状态管理
   const [internalSelectedIndex, setInternalSelectedIndex] = useState(getTodayIndexInMonth());
   const [currentMonth, setCurrentMonth] = useState(dayjs()); // 当前显示的月份
@@ -59,8 +62,8 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
   const isGlassAvailable = isLiquidGlassAvailable();
 
   // 获取日期数据
-  const days = getMonthDaysZh(currentMonth);
-  const monthTitle = externalMonthTitle ?? getMonthTitleZh(currentMonth);
+  const days = getMonthDays(currentMonth, i18n.language as 'zh' | 'en');
+  const monthTitle = externalMonthTitle ?? getMonthTitle(currentMonth, i18n.language as 'zh' | 'en');
 
   // 判断当前选中的日期是否是今天
   const isSelectedDateToday = () => {
@@ -201,7 +204,7 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
     setCurrentMonth(selectedMonth);
 
     // 计算选中日期在新月份中的索引
-    const newMonthDays = getMonthDaysZh(selectedMonth);
+    const newMonthDays = getMonthDays(selectedMonth, i18n.language as 'zh' | 'en');
     const selectedDay = selectedMonth.date();
     const newSelectedIndex = newMonthDays.findIndex(day => day.dayOfMonth === selectedDay);
 
@@ -219,7 +222,7 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
   const handleGoToday = () => {
     const today = dayjs();
     setCurrentMonth(today);
-    const todayDays = getMonthDaysZh(today);
+    const todayDays = getMonthDays(today, i18n.language as 'zh' | 'en');
     const newSelectedIndex = todayDays.findIndex(day => day.dayOfMonth === today.date());
 
     if (newSelectedIndex !== -1) {
@@ -250,11 +253,11 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
                     tintColor="rgba(124, 58, 237, 0.08)"
                     isInteractive={true}
                   >
-                    <Text style={styles.todayButtonText}>回到今天</Text>
+                    <Text style={styles.todayButtonText}>{t('dateSelector.backToToday')}</Text>
                   </GlassView>
                 ) : (
                   <View style={[styles.todayButton, styles.todayButtonFallback]}>
-                    <Text style={styles.todayButtonText}>回到今天</Text>
+                    <Text style={styles.todayButtonText}>{t('dateSelector.backToToday')}</Text>
                   </View>
                 )}
               </TouchableOpacity>
@@ -379,7 +382,7 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
               display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
               minimumDate={dayjs().subtract(6, 'month').toDate()}
               maximumDate={disableFutureDates ? new Date() : undefined}
-              {...(Platform.OS === 'ios' ? { locale: 'zh-CN' } : {})}
+              {...(Platform.OS === 'ios' ? { locale: i18n.language === 'zh' ? 'zh-CN' : 'en-US' } : {})}
               onChange={(event, date) => {
                 if (Platform.OS === 'ios') {
                   if (date) setPickerDate(date);
@@ -395,12 +398,12 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
             {Platform.OS === 'ios' && (
               <View style={styles.modalActions}>
                 <TouchableOpacity onPress={closeDatePicker} style={[styles.modalBtn]}>
-                  <Text style={styles.modalBtnText}>取消</Text>
+                  <Text style={styles.modalBtnText}>{t('dateSelector.cancel')}</Text>
                 </TouchableOpacity>
                 <TouchableOpacity onPress={() => {
                   onConfirmDate(pickerDate);
                 }} style={[styles.modalBtn, styles.modalBtnPrimary]}>
-                  <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>确定</Text>
+                  <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>{t('dateSelector.confirm')}</Text>
                 </TouchableOpacity>
               </View>
             )}
@@ -413,7 +416,7 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
               display={Platform.OS === 'ios' ? 'inline' : 'calendar'}
               minimumDate={dayjs().subtract(6, 'month').toDate()}
               maximumDate={disableFutureDates ? new Date() : undefined}
-              {...(Platform.OS === 'ios' ? { locale: 'zh-CN' } : {})}
+              {...(Platform.OS === 'ios' ? { locale: i18n.language === 'zh' ? 'zh-CN' : 'en-US' } : {})}
               onChange={(event, date) => {
                 if (Platform.OS === 'ios') {
                   if (date) setPickerDate(date);
@@ -429,12 +432,12 @@ export const DateSelector: React.FC<DateSelectorProps> = ({
             {Platform.OS === 'ios' && (
               <View style={styles.modalActions}>
                 <TouchableOpacity onPress={closeDatePicker} style={[styles.modalBtn]}>
-                  <Text style={styles.modalBtnText}>取消</Text>
+                  <Text style={styles.modalBtnText}>{t('dateSelector.cancel')}</Text>
                 </TouchableOpacity>
                 <TouchableOpacity onPress={() => {
                   onConfirmDate(pickerDate);
                 }} style={[styles.modalBtn, styles.modalBtnPrimary]}>
-                  <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>确定</Text>
+                  <Text style={[styles.modalBtnText, styles.modalBtnTextPrimary]}>{t('dateSelector.confirm')}</Text>
                 </TouchableOpacity>
               </View>
             )}

components/challenges/ChallengeRankingItem.tsx

@@ -1,3 +1,4 @@
+import { useI18n } from '@/hooks/useI18n';
 import type { RankingItem } from '@/store/challengesSlice';
 import { Ionicons } from '@expo/vector-icons';
 import { Image } from 'expo-image';
@@ -18,10 +19,13 @@ const formatNumber = (value: number): string => {
   return value.toFixed(2).replace(/0+$/, '').replace(/\.$/, '');
 };
 
+export function ChallengeRankingItem({ item, index, showDivider = false, unit }: ChallengeRankingItemProps) {
+  const { t } = useI18n();
+
   const formatMinutes = (value: number): string => {
     const safeValue = Math.max(0, Math.round(value));
     const hours = safeValue / 60;
-  return `${hours.toFixed(1)} 小时`;
+    return `${hours.toFixed(1)} ${t('challengeDetail.ranking.hour')}`;
   };
 
   const formatValueWithUnit = (value: number | undefined, unit?: string): string | undefined => {
@@ -35,17 +39,14 @@ const formatValueWithUnit = (value: number | undefined, unit?: string): string |
     return unit ? `${formatted} ${unit}` : formatted;
   };
 
-export function ChallengeRankingItem({ item, index, showDivider = false, unit }: ChallengeRankingItemProps) {
-  console.log('unit', unit);
-
   const reportedLabel = formatValueWithUnit(item.todayReportedValue, unit);
   const targetLabel = formatValueWithUnit(item.todayTargetValue, unit);
   const progressLabel = reportedLabel && targetLabel
-    ? `今日 ${reportedLabel} / ${targetLabel}`
+    ? `${t('challengeDetail.ranking.today')} ${reportedLabel} / ${targetLabel}`
     : reportedLabel
-      ? `今日 ${reportedLabel}`
+      ? `${t('challengeDetail.ranking.today')} ${reportedLabel}`
       : targetLabel
-        ? `今日目标 ${targetLabel}`
+        ? `${t('challengeDetail.ranking.todayGoal')} ${targetLabel}`
         : undefined;
 
   return (

components/medications/MedicationPhotoGuideModal.tsx

@@ -1,3 +1,4 @@
+import { useI18n } from '@/hooks/useI18n';
 import { Ionicons } from '@expo/vector-icons';
 import { GlassView, isLiquidGlassAvailable } from 'expo-glass-effect';
 import { Image } from 'expo-image';
@@ -25,6 +26,8 @@ interface MedicationPhotoGuideModalProps {
  * 展示如何正确拍摄药品照片的说明和示例
  */
 export function MedicationPhotoGuideModal({ visible, onClose }: MedicationPhotoGuideModalProps) {
+  const { t } = useI18n();
+
   return (
     <Modal
       visible={visible}
@@ -48,8 +51,12 @@ export function MedicationPhotoGuideModal({ visible, onClose }: MedicationPhotoG
           >
             {/* 标题部分 */}
             <View style={styles.guideHeader}>
-              <Text style={styles.guideStepBadge}>规范</Text>
-              <Text style={styles.guideTitle}>拍摄图片清晰</Text>
+              <Text style={styles.guideStepBadge}>
+                {t('medications.aiCamera.guideModal.badge')}
+              </Text>
+              <Text style={styles.guideTitle}>
+                {t('medications.aiCamera.guideModal.title')}
+              </Text>
             </View>
 
             {/* 示例图片 */}
@@ -99,10 +106,10 @@ export function MedicationPhotoGuideModal({ visible, onClose }: MedicationPhotoG
             {/* 说明文字 */}
             <View style={styles.guideDescription}>
               <Text style={styles.guideDescriptionText}>
-                请拍摄药品正面\背面的产品名称\说明部分。
+                {t('medications.aiCamera.guideModal.description1')}
               </Text>
               <Text style={styles.guideDescriptionText}>
-                注意拍摄时光线充分，没有反光，文字部分清晰可见。照片的清晰度会影响识别的准确率。
+                {t('medications.aiCamera.guideModal.description2')}
               </Text>
             </View>
 
@@ -124,7 +131,9 @@ export function MedicationPhotoGuideModal({ visible, onClose }: MedicationPhotoG
                     end={{ x: 1, y: 0 }}
                     style={styles.guideConfirmButtonGradient}
                   >
-                    <Text style={styles.guideConfirmButtonText}>知道了！</Text>
+                    <Text style={styles.guideConfirmButtonText}>
+                      {t('medications.aiCamera.guideModal.button')}
+                    </Text>
                   </LinearGradient>
                 </GlassView>
               ) : (
@@ -135,7 +144,9 @@ export function MedicationPhotoGuideModal({ visible, onClose }: MedicationPhotoG
                     end={{ x: 1, y: 0 }}
                     style={styles.guideConfirmButtonGradient}
                   >
-                    <Text style={styles.guideConfirmButtonText}>知道了！</Text>
+                    <Text style={styles.guideConfirmButtonText}>
+                      {t('medications.aiCamera.guideModal.button')}
+                    </Text>
                   </LinearGradient>
                 </View>
               )}

components/sleep/InfoModal.tsx

@@ -11,6 +11,7 @@ import {
 
 import { Colors } from '@/constants/Colors';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 
 // 睡眠详情数据类型
 export type SleepDetailData = {
@@ -41,15 +42,22 @@ const SleepGradeCard = ({
   range: string;
   isActive?: boolean;
 }) => {
+  const { t } = useI18n();
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
 
   const getGradeColor = (grade: string) => {
     switch (grade) {
-      case '低': case '较差': return { bg: '#FECACA', text: '#DC2626' };
-      case '正常': case '一般': return { bg: '#D1FAE5', text: '#065F46' };
-      case '良好': return { bg: '#D1FAE5', text: '#065F46' };
-      case '优秀': return { bg: '#FEF3C7', text: '#92400E' };
+      case t('sleepDetail.sleepGrades.low'):
+      case t('sleepDetail.sleepGrades.poor'):
+        return { bg: '#FECACA', text: '#DC2626' };
+      case t('sleepDetail.sleepGrades.normal'):
+      case t('sleepDetail.sleepGrades.fair'):
+        return { bg: '#D1FAE5', text: '#065F46' };
+      case t('sleepDetail.sleepGrades.good'):
+        return { bg: '#D1FAE5', text: '#065F46' };
+      case t('sleepDetail.sleepGrades.excellent'):
+        return { bg: '#FEF3C7', text: '#92400E' };
       default: return { bg: colorTokens.pageBackgroundEmphasis, text: colorTokens.textSecondary };
     }
   };
@@ -97,6 +105,7 @@ export const InfoModal = ({
   type: 'sleep-time' | 'sleep-quality';
   sleepData: SleepDetailData;
 }) => {
+  const { t } = useI18n();
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
   const slideAnim = useState(new Animated.Value(0))[0];
@@ -153,26 +162,26 @@ export const InfoModal = ({
   const currentSleepQualityGrade = getSleepQualityGrade(sleepData.sleepQualityPercentage || 94); // 默认94%
 
   const sleepTimeGrades = [
-    { icon: 'alert-circle-outline', grade: '低', range: '< 6h', isActive: currentSleepTimeGrade === 0 },
-    { icon: 'checkmark-circle-outline', grade: '正常', range: '6h - 7h or > 9h', isActive: currentSleepTimeGrade === 1 },
-    { icon: 'checkmark-circle', grade: '良好', range: '7h - 8h', isActive: currentSleepTimeGrade === 2 },
-    { icon: 'star', grade: '优秀', range: '8h - 9h', isActive: currentSleepTimeGrade === 3 },
+    { icon: 'alert-circle-outline', grade: t('sleepDetail.sleepGrades.low'), range: '< 6h', isActive: currentSleepTimeGrade === 0 },
+    { icon: 'checkmark-circle-outline', grade: t('sleepDetail.sleepGrades.normal'), range: '6h - 7h or > 9h', isActive: currentSleepTimeGrade === 1 },
+    { icon: 'checkmark-circle', grade: t('sleepDetail.sleepGrades.good'), range: '7h - 8h', isActive: currentSleepTimeGrade === 2 },
+    { icon: 'star', grade: t('sleepDetail.sleepGrades.excellent'), range: '8h - 9h', isActive: currentSleepTimeGrade === 3 },
   ];
 
   const sleepQualityGrades = [
-    { icon: 'alert-circle-outline', grade: '较差', range: '< 55%', isActive: currentSleepQualityGrade === 0 },
-    { icon: 'checkmark-circle-outline', grade: '一般', range: '55% - 69%', isActive: currentSleepQualityGrade === 1 },
-    { icon: 'checkmark-circle', grade: '良好', range: '70% - 84%', isActive: currentSleepQualityGrade === 2 },
-    { icon: 'star', grade: '优秀', range: '85% - 100%', isActive: currentSleepQualityGrade === 3 },
+    { icon: 'alert-circle-outline', grade: t('sleepDetail.sleepGrades.poor'), range: '< 55%', isActive: currentSleepQualityGrade === 0 },
+    { icon: 'checkmark-circle-outline', grade: t('sleepDetail.sleepGrades.fair'), range: '55% - 69%', isActive: currentSleepQualityGrade === 1 },
+    { icon: 'checkmark-circle', grade: t('sleepDetail.sleepGrades.good'), range: '70% - 84%', isActive: currentSleepQualityGrade === 2 },
+    { icon: 'star', grade: t('sleepDetail.sleepGrades.excellent'), range: '85% - 100%', isActive: currentSleepQualityGrade === 3 },
   ];
 
   const currentGrades = type === 'sleep-time' ? sleepTimeGrades : sleepQualityGrades;
 
   const getDescription = () => {
     if (type === 'sleep-time') {
-      return '睡眠最重要 - 它占据了你睡眠得分的一半以上。长时间的睡眠可以减少睡眠债务，但是规律的睡眠时间对于高质量的休息至关重要。';
+      return t('sleepDetail.sleepTimeDescription');
     } else {
-      return '睡眠质量综合评估您的睡眠效率、深度睡眠时长、REM睡眠比例等多个指标。高质量的睡眠不仅仅取决于时长，还包括睡眠的连续性和各睡眠阶段的平衡。';
+      return t('sleepDetail.sleepQualityDescription');
     }
   };
 

components/sleep/SleepStageTimeline.tsx

@@ -7,18 +7,24 @@ import React, { useMemo } from 'react';
 import { StyleSheet, Text, TouchableOpacity, View } from 'react-native';
 import Svg, { Rect, Text as SvgText } from 'react-native-svg';
 
+import { StyleProp, ViewStyle } from 'react-native';
+
 export type SleepStageTimelineProps = {
   sleepSamples: SleepSample[];
   bedtime: string;
   wakeupTime: string;
   onInfoPress?: () => void;
+  hideHeader?: boolean;
+  style?: StyleProp<ViewStyle>;
 };
 
 export const SleepStageTimeline = ({
   sleepSamples,
   bedtime,
   wakeupTime,
-  onInfoPress
+  onInfoPress,
+  hideHeader = false,
+  style
 }: SleepStageTimelineProps) => {
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
@@ -130,7 +136,8 @@ export const SleepStageTimeline = ({
   // 如果没有数据，显示空状态
   if (timelineData.length === 0) {
     return (
-      <View style={[styles.container, { backgroundColor: colorTokens.background }]}>
+      <View style={[styles.container, { backgroundColor: colorTokens.background }, style]}>
+        {!hideHeader && (
           <View style={styles.header}>
             <Text style={[styles.title, { color: colorTokens.text }]}>睡眠阶段图</Text>
             {onInfoPress && (
@@ -139,6 +146,7 @@ export const SleepStageTimeline = ({
               </TouchableOpacity>
             )}
           </View>
+        )}
         <View style={styles.emptyState}>
           <Text style={[styles.emptyText, { color: colorTokens.textSecondary }]}>
             暂无睡眠阶段数据
@@ -149,8 +157,9 @@ export const SleepStageTimeline = ({
   }
 
   return (
-    <View style={[styles.container, { backgroundColor: colorTokens.background }]}>
+    <View style={[styles.container, { backgroundColor: colorTokens.background }, style]}>
       {/* 标题栏 */}
+      {!hideHeader && (
         <View style={styles.header}>
           <Text style={[styles.title, { color: colorTokens.text }]}>睡眠阶段图</Text>
           {onInfoPress && (
@@ -159,6 +168,7 @@ export const SleepStageTimeline = ({
             </TouchableOpacity>
           )}
         </View>
+      )}
 
       {/* 睡眠时间范围 */}
       <View style={styles.timeRange}>

components/sleep/SleepStagesInfoModal.tsx

@@ -13,6 +13,7 @@ import {
 
 import { Colors } from '@/constants/Colors';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 
 // Sleep Stages Info Modal 组件
 export const SleepStagesInfoModal = ({
@@ -22,6 +23,7 @@ export const SleepStagesInfoModal = ({
   visible: boolean;
   onClose: () => void;
 }) => {
+  const { t } = useI18n();
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colorTokens = Colors[theme];
   const slideAnim = useState(new Animated.Value(0))[0];
@@ -82,7 +84,7 @@ export const SleepStagesInfoModal = ({
 
             <View style={styles.sleepStagesModalHeader}>
               <Text style={[styles.sleepStagesModalTitle, { color: colorTokens.text }]}>
-                了解你的睡眠阶段
+                {t('sleepDetail.sleepStagesInfo.title')}
               </Text>
               <TouchableOpacity onPress={onClose} style={styles.infoModalCloseButton}>
                 <Ionicons name="close" size={24} color={colorTokens.textSecondary} />
@@ -97,7 +99,7 @@ export const SleepStagesInfoModal = ({
               scrollEnabled={true}
             >
               <Text style={[styles.sleepStagesDescription, { color: colorTokens.textSecondary }]}>
-                人们对睡眠阶段和睡眠质量有许多误解。有些人可能需要更多深度睡眠，其他人则不然。科学家和医生仍在探索不同睡眠阶段的作用及其对身体的影响。通过跟踪睡眠阶段并留意每天清晨的感受，你或许能深入了解自己的睡眠。
+                {t('sleepDetail.sleepStagesInfo.description')}
               </Text>
 
               {/* 清醒时间 */}
@@ -105,11 +107,11 @@ export const SleepStagesInfoModal = ({
                 <View style={[styles.sleepStageInfoHeader, { borderBottomColor: colorTokens.border }]}>
                   <View style={styles.sleepStageInfoTitleContainer}>
                     <View style={[styles.sleepStageDot, { backgroundColor: '#F59E0B' }]} />
-                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>清醒时间</Text>
+                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>{t('sleepDetail.sleepStagesInfo.awake.title')}</Text>
                   </View>
                 </View>
                 <Text style={[styles.sleepStageInfoContent, { color: colorTokens.textSecondary }]}>
-                  一次睡眠期间，你可能会醒来几次。偶尔醒来很正常。可能你会立刻再次入睡，并不记得曾在夜间醒来。
+                  {t('sleepDetail.sleepStagesInfo.awake.description')}
                 </Text>
               </View>
 
@@ -118,11 +120,11 @@ export const SleepStagesInfoModal = ({
                 <View style={[styles.sleepStageInfoHeader, { borderBottomColor: colorTokens.border }]}>
                   <View style={styles.sleepStageInfoTitleContainer}>
                     <View style={[styles.sleepStageDot, { backgroundColor: '#EC4899' }]} />
-                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>快速动眼睡眠</Text>
+                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>{t('sleepDetail.sleepStagesInfo.rem.title')}</Text>
                   </View>
                 </View>
                 <Text style={[styles.sleepStageInfoContent, { color: colorTokens.textSecondary }]}>
-                  这一睡眠阶段可能对学习和记忆产生一定影响。在此阶段，你的肌肉最为放松，眼球也会快速左右移动。这也是你大多数梦境出现的阶段。
+                  {t('sleepDetail.sleepStagesInfo.rem.description')}
                 </Text>
               </View>
 
@@ -131,11 +133,11 @@ export const SleepStagesInfoModal = ({
                 <View style={[styles.sleepStageInfoHeader, { borderBottomColor: colorTokens.border }]}>
                   <View style={styles.sleepStageInfoTitleContainer}>
                     <View style={[styles.sleepStageDot, { backgroundColor: '#8B5CF6' }]} />
-                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>核心睡眠</Text>
+                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>{t('sleepDetail.sleepStagesInfo.core.title')}</Text>
                   </View>
                 </View>
                 <Text style={[styles.sleepStageInfoContent, { color: colorTokens.textSecondary }]}>
-                  这一阶段有时也称为浅睡期，与其他阶段一样重要。此阶段通常占据你每晚大部分的睡眠时间。对于认知至关重要的脑电波会在这一阶段产生。
+                  {t('sleepDetail.sleepStagesInfo.core.description')}
                 </Text>
               </View>
 
@@ -144,11 +146,11 @@ export const SleepStagesInfoModal = ({
                 <View style={[styles.sleepStageInfoHeader, { borderBottomColor: colorTokens.border }]}>
                   <View style={styles.sleepStageInfoTitleContainer}>
                     <View style={[styles.sleepStageDot, { backgroundColor: '#3B82F6' }]} />
-                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>深度睡眠</Text>
+                    <Text style={[styles.sleepStageInfoTitle, { color: colorTokens.text }]}>{t('sleepDetail.sleepStagesInfo.deep.title')}</Text>
                   </View>
                 </View>
                 <Text style={[styles.sleepStageInfoContent, { color: colorTokens.textSecondary }]}>
-                  因为脑电波的特征，这一阶段也称为慢波睡眠。在此阶段，身体组织得到修复，并释放重要荷尔蒙。它通常出现在睡眠的前半段，且持续时间较长。深度睡眠期间，身体非常放松，因此相较于其他阶段，你可能更难在此阶段醒来。
+                  {t('sleepDetail.sleepStagesInfo.deep.description')}
                 </Text>
               </View>
             </ScrollView>

components/weight/WeightRecordCard.tsx

@@ -1,5 +1,6 @@
 import { Colors } from '@/constants/Colors';
 import { useColorScheme } from '@/hooks/useColorScheme';
+import { useI18n } from '@/hooks/useI18n';
 import { WeightHistoryItem } from '@/store/userSlice';
 import { Ionicons } from '@expo/vector-icons';
 import dayjs from 'dayjs';
@@ -20,6 +21,7 @@ export const WeightRecordCard: React.FC<WeightRecordCardProps> = ({
   onDelete,
   weightChange = 0
 }) => {
+  const { t } = useI18n();
   const swipeableRef = useRef<Swipeable>(null);
   const colorScheme = useColorScheme();
   const themeColors = Colors[colorScheme ?? 'light'];
@@ -27,15 +29,15 @@ export const WeightRecordCard: React.FC<WeightRecordCardProps> = ({
   // 处理删除操作
   const handleDelete = () => {
     Alert.alert(
-      '确认删除',
-      `确定要删除这条体重记录吗？此操作无法撤销。`,
+      t('weightRecords.card.deleteConfirmTitle'),
+      t('weightRecords.card.deleteConfirmMessage'),
       [
         {
-          text: '取消',
+          text: t('weightRecords.card.cancelButton'),
           style: 'cancel',
         },
         {
-          text: '删除',
+          text: t('weightRecords.card.deleteButton'),
           style: 'destructive',
           onPress: () => {
             const recordId = record.id || record.createdAt;
@@ -56,7 +58,7 @@ export const WeightRecordCard: React.FC<WeightRecordCardProps> = ({
         activeOpacity={0.8}
       >
         <Ionicons name="trash" size={20} color="#FFFFFF" />
-        <Text style={styles.deleteButtonText}>删除</Text>
+        <Text style={styles.deleteButtonText}>{t('weightRecords.card.deleteButton')}</Text>
       </TouchableOpacity>
     );
   };
@@ -73,7 +75,7 @@ export const WeightRecordCard: React.FC<WeightRecordCardProps> = ({
       >
         <View style={styles.recordHeader}>
           <Text style={[styles.recordDateTime, { color: themeColors.textSecondary }]}>
-            {dayjs(record.createdAt).format('MM月DD日 HH:mm')}
+            {dayjs(record.createdAt).format('MM[月]DD[日] HH:mm')}
           </Text>
           <TouchableOpacity
             style={styles.recordEditButton}
@@ -83,8 +85,8 @@ export const WeightRecordCard: React.FC<WeightRecordCardProps> = ({
           </TouchableOpacity>
         </View>
         <View style={styles.recordContent}>
-          <Text style={[styles.recordWeightLabel, { color: themeColors.textSecondary }]}>体重：</Text>
-          <Text style={[styles.recordWeightValue, { color: themeColors.text }]}>{record.weight}kg</Text>
+          <Text style={[styles.recordWeightLabel, { color: themeColors.textSecondary }]}>{t('weightRecords.card.weightLabel')}：</Text>
+          <Text style={[styles.recordWeightValue, { color: themeColors.text }]}>{record.weight}{t('weightRecords.modal.unit')}</Text>
           {Math.abs(weightChange) > 0 && (
             <View style={[
               styles.weightChangeTag,

components/workout/WorkoutDetailModal.tsx

@@ -15,6 +15,7 @@ import {
   View,
 } from 'react-native';
 
+import { useI18n } from '@/hooks/useI18n';
 import {
   HeartRateZoneStat,
   WorkoutDetailMetrics,
@@ -59,6 +60,7 @@ export function WorkoutDetailModal({
   onRetry,
   errorMessage,
 }: WorkoutDetailModalProps) {
+  const { t } = useI18n();
   const animation = useRef(new Animated.Value(visible ? 1 : 0)).current;
   const [isMounted, setIsMounted] = useState(visible);
   const [showIntensityInfo, setShowIntensityInfo] = useState(false);
@@ -229,26 +231,26 @@ export function WorkoutDetailModal({
               {loading ? (
                 <View style={styles.loadingBlock}>
                   <ActivityIndicator color="#5C55FF" />
-                  <Text style={styles.loadingLabel}>正在加载锻炼详情...</Text>
+                  <Text style={styles.loadingLabel}>{t('workoutDetail.loading')}</Text>
                 </View>
               ) : metrics ? (
                 <>
                   <View style={styles.metricsRow}>
                     <View style={styles.metricItem}>
-                      <Text style={styles.metricTitle}>体能训练时间</Text>
+                      <Text style={styles.metricTitle}>{t('workoutDetail.metrics.duration')}</Text>
                       <Text style={styles.metricValue}>{metrics.durationLabel}</Text>
                     </View>
                     <View style={styles.metricItem}>
-                      <Text style={styles.metricTitle}>运动热量</Text>
+                      <Text style={styles.metricTitle}>{t('workoutDetail.metrics.calories')}</Text>
                       <Text style={styles.metricValue}>
-                        {metrics.calories != null ? `${metrics.calories} 千卡` : '--'}
+                        {metrics.calories != null ? `${metrics.calories} ${t('workoutDetail.metrics.caloriesUnit')}` : '--'}
                       </Text>
                     </View>
                   </View>
                   <View style={styles.metricsRow}>
                     <View style={styles.metricItem}>
                       <View style={styles.metricTitleRow}>
-                        <Text style={styles.metricTitle}>运动强度</Text>
+                        <Text style={styles.metricTitle}>{t('workoutDetail.metrics.intensity')}</Text>
                         <TouchableOpacity
                           onPress={() => setShowIntensityInfo(true)}
                           style={styles.metricInfoButton}
@@ -262,9 +264,9 @@ export function WorkoutDetailModal({
                       </Text>
                     </View>
                     <View style={styles.metricItem}>
-                      <Text style={styles.metricTitle}>平均心率</Text>
+                      <Text style={styles.metricTitle}>{t('workoutDetail.metrics.averageHeartRate')}</Text>
                       <Text style={styles.metricValue}>
-                        {metrics.averageHeartRate != null ? `${metrics.averageHeartRate} 次/分` : '--'}
+                        {metrics.averageHeartRate != null ? `${metrics.averageHeartRate} ${t('workoutDetail.metrics.heartRateUnit')}` : '--'}
                       </Text>
                     </View>
                   </View>
@@ -275,11 +277,11 @@ export function WorkoutDetailModal({
               ) : (
                 <View style={styles.errorBlock}>
                   <Text style={styles.errorText}>
-                    {errorMessage || '未能获取到完整的锻炼详情'}
+                    {errorMessage || t('workoutDetail.errors.loadFailed')}
                   </Text>
                   {onRetry ? (
                     <TouchableOpacity style={styles.retryButton} onPress={onRetry}>
-                      <Text style={styles.retryButtonText}>重新加载</Text>
+                      <Text style={styles.retryButtonText}>{t('workoutDetail.retry')}</Text>
                     </TouchableOpacity>
                   ) : null}
                 </View>
@@ -288,7 +290,7 @@ export function WorkoutDetailModal({
 
             <View style={styles.section}>
               <View style={styles.sectionHeader}>
-                <Text style={styles.sectionTitle}>心率范围</Text>
+                <Text style={styles.sectionTitle}>{t('workoutDetail.sections.heartRateRange')}</Text>
               </View>
 
               {loading ? (
@@ -299,21 +301,21 @@ export function WorkoutDetailModal({
                 <>
                   <View style={styles.heartRateSummaryRow}>
                     <View style={styles.heartRateStat}>
-                      <Text style={styles.statLabel}>平均心率</Text>
+                      <Text style={styles.statLabel}>{t('workoutDetail.sections.averageHeartRate')}</Text>
                       <Text style={styles.statValue}>
-                        {metrics.averageHeartRate != null ? `${metrics.averageHeartRate}次/分` : '--'}
+                        {metrics.averageHeartRate != null ? `${metrics.averageHeartRate} ${t('workoutDetail.sections.heartRateUnit')}` : '--'}
                       </Text>
                     </View>
                     <View style={styles.heartRateStat}>
-                      <Text style={styles.statLabel}>最高心率</Text>
+                      <Text style={styles.statLabel}>{t('workoutDetail.sections.maximumHeartRate')}</Text>
                       <Text style={styles.statValue}>
-                        {metrics.maximumHeartRate != null ? `${metrics.maximumHeartRate}次/分` : '--'}
+                        {metrics.maximumHeartRate != null ? `${metrics.maximumHeartRate} ${t('workoutDetail.sections.heartRateUnit')}` : '--'}
                       </Text>
                     </View>
                     <View style={styles.heartRateStat}>
-                      <Text style={styles.statLabel}>最低心率</Text>
+                      <Text style={styles.statLabel}>{t('workoutDetail.sections.minimumHeartRate')}</Text>
                       <Text style={styles.statValue}>
-                        {metrics.minimumHeartRate != null ? `${metrics.minimumHeartRate}次/分` : '--'}
+                        {metrics.minimumHeartRate != null ? `${metrics.minimumHeartRate} ${t('workoutDetail.sections.heartRateUnit')}` : '--'}
                       </Text>
                     </View>
                   </View>
@@ -336,7 +338,7 @@ export function WorkoutDetailModal({
                           width={Dimensions.get('window').width - 72}
                           height={220}
                           fromZero={false}
-                          yAxisSuffix="次/分"
+                          yAxisSuffix={t('workoutDetail.sections.heartRateUnit')}
                           withInnerLines={false}
                           bezier
                           chartConfig={{
@@ -360,20 +362,20 @@ export function WorkoutDetailModal({
                     ) : (
                       <View style={styles.chartEmpty}>
                         <MaterialCommunityIcons name="chart-line-variant" size={32} color="#C5CBE2" />
-                        <Text style={styles.chartEmptyText}>图表组件不可用，无法展示心率曲线</Text>
+                        <Text style={styles.chartEmptyText}>{t('workoutDetail.chart.unavailable')}</Text>
                       </View>
                     )
                   ) : (
                     <View style={styles.chartEmpty}>
                       <MaterialCommunityIcons name="heart-off-outline" size={32} color="#C5CBE2" />
-                      <Text style={styles.chartEmptyText}>暂无心率采样数据</Text>
+                      <Text style={styles.chartEmptyText}>{t('workoutDetail.chart.noData')}</Text>
                     </View>
                   )}
                 </>
               ) : (
                 <View style={styles.sectionError}>
                   <Text style={styles.errorTextSmall}>
-                    {errorMessage || '未获取到心率数据'}
+                    {errorMessage || t('workoutDetail.errors.noHeartRateData')}
                   </Text>
                 </View>
               )}
@@ -381,7 +383,7 @@ export function WorkoutDetailModal({
 
             <View style={styles.section}>
               <View style={styles.sectionHeader}>
-                <Text style={styles.sectionTitle}>心率训练区间</Text>
+                <Text style={styles.sectionTitle}>{t('workoutDetail.sections.heartRateZones')}</Text>
               </View>
 
               {loading ? (
@@ -391,7 +393,7 @@ export function WorkoutDetailModal({
               ) : metrics ? (
                 metrics.heartRateZones.map(renderHeartRateZone)
               ) : (
-                <Text style={styles.errorTextSmall}>暂无区间统计</Text>
+                <Text style={styles.errorTextSmall}>{t('workoutDetail.errors.noZoneStats')}</Text>
               )}
             </View>
 
@@ -410,36 +412,36 @@ export function WorkoutDetailModal({
                 <TouchableWithoutFeedback onPress={() => { }}>
                   <View style={styles.intensityInfoSheet}>
                     <View style={styles.intensityHandle} />
-                    <Text style={styles.intensityInfoTitle}>什么是运动强度？</Text>
+                    <Text style={styles.intensityInfoTitle}>{t('workoutDetail.intensityInfo.title')}</Text>
                     <Text style={styles.intensityInfoText}>
-                      运动强度是你完成一项任务所用的能量估算，是衡量锻炼和其他日常活动能耗强度的指标，单位为 MET（千卡/（千克·小时））。
+                      {t('workoutDetail.intensityInfo.description1')}
                     </Text>
                     <Text style={styles.intensityInfoText}>
-                      因为每个人的代谢状况不同，MET 以身体的静息能耗作为参考，便于衡量不同活动的强度。
+                      {t('workoutDetail.intensityInfo.description2')}
                     </Text>
                     <Text style={styles.intensityInfoText}>
-                      例如：散步（约 3 km/h）相当于 2 METs，意味着它需要消耗静息状态 2 倍的能量。
+                      {t('workoutDetail.intensityInfo.description3')}
                     </Text>
                     <Text style={styles.intensityInfoText}>
-                      注：当设备未提供 METs 值时，系统会根据您的卡路里消耗和锻炼时长自动计算（使用70公斤估算体重）。
+                      {t('workoutDetail.intensityInfo.description4')}
                     </Text>
                     <View style={styles.intensityFormula}>
-                      <Text style={styles.intensityFormulaLabel}>运动强度计算公式</Text>
-                      <Text style={styles.intensityFormulaValue}>METs = 活动能耗（千卡/小时） ÷ 静息能耗（1 千卡/小时）</Text>
+                      <Text style={styles.intensityFormulaLabel}>{t('workoutDetail.intensityInfo.formula.title')}</Text>
+                      <Text style={styles.intensityFormulaValue}>{t('workoutDetail.intensityInfo.formula.value')}</Text>
                     </View>
 
                     <View style={styles.intensityLegend}>
                       <View style={styles.intensityLegendRow}>
-                        <Text style={styles.intensityLegendRange}>{'< 3'}</Text>
-                        <Text style={[styles.intensityLegendLabel, styles.intensityLow]}>低强度活动</Text>
+                        <Text style={styles.intensityLegendRange}>{t('workoutDetail.intensityInfo.legend.low')}</Text>
+                        <Text style={[styles.intensityLegendLabel, styles.intensityLow]}>{t('workoutDetail.intensityInfo.legend.lowLabel')}</Text>
                       </View>
                       <View style={styles.intensityLegendRow}>
-                        <Text style={styles.intensityLegendRange}>3 - 6</Text>
-                        <Text style={[styles.intensityLegendLabel, styles.intensityMedium]}>中强度活动</Text>
+                        <Text style={styles.intensityLegendRange}>{t('workoutDetail.intensityInfo.legend.medium')}</Text>
+                        <Text style={[styles.intensityLegendLabel, styles.intensityMedium]}>{t('workoutDetail.intensityInfo.legend.mediumLabel')}</Text>
                       </View>
                       <View style={styles.intensityLegendRow}>
-                        <Text style={styles.intensityLegendRange}>{'≥ 6'}</Text>
-                        <Text style={[styles.intensityLegendLabel, styles.intensityHigh]}>高强度活动</Text>
+                        <Text style={styles.intensityLegendRange}>{t('workoutDetail.intensityInfo.legend.high')}</Text>
+                        <Text style={[styles.intensityLegendLabel, styles.intensityHigh]}>{t('workoutDetail.intensityInfo.legend.highLabel')}</Text>
                       </View>
                     </View>
                   </View>

hooks/useAuthGuard.ts

@@ -5,6 +5,7 @@ import { Alert } from 'react-native';
 
 import { ROUTES } from '@/constants/Routes';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
+import { useI18n } from '@/hooks/useI18n';
 import { STORAGE_KEYS, api } from '@/services/api';
 import { logout as logoutAction } from '@/store/userSlice';
 
@@ -21,6 +22,7 @@ export function useAuthGuard() {
   const dispatch = useAppDispatch();
   const currentPath = usePathname();
   const user = useAppSelector(state => state.user);
+  const { t } = useI18n();
 
   // 判断登录状态：优先使用 token，因为 token 是登录的根本凭证
   // profile.id 可能在初始化时还未加载，但 token 已经从 AsyncStorage 恢复
@@ -74,28 +76,28 @@ export function useAuthGuard() {
       router.push('/auth/login');
     } catch (error) {
       console.error('退出登录失败:', error);
-      Alert.alert('错误', '退出登录失败，请稍后重试');
+      Alert.alert(t('authGuard.logout.error'), t('authGuard.logout.errorMessage'));
     }
-  }, [dispatch, router]);
+  }, [dispatch, router, t]);
 
   // 带确认对话框的退出登录
   const confirmLogout = useCallback(() => {
     Alert.alert(
-      '确认退出',
-      '确定要退出当前账号吗？',
+      t('authGuard.confirmLogout.title'),
+      t('authGuard.confirmLogout.message'),
       [
         {
-          text: '取消',
+          text: t('authGuard.confirmLogout.cancelButton'),
           style: 'cancel',
         },
         {
-          text: '确定',
+          text: t('authGuard.confirmLogout.confirmButton'),
           style: 'default',
           onPress: handleLogout,
         },
       ]
     );
-  }, [handleLogout]);
+  }, [handleLogout, t]);
 
   // 注销账号功能
   const handleDeleteAccount = useCallback(async () => {
@@ -109,38 +111,38 @@ export function useAuthGuard() {
       // 执行退出登录逻辑
       await dispatch(logoutAction()).unwrap();
 
-      Alert.alert('账号已注销', '您的账号已成功注销', [
+      Alert.alert(t('authGuard.deleteAccount.successTitle'), t('authGuard.deleteAccount.successMessage'), [
         {
-          text: '确定',
+          text: t('authGuard.deleteAccount.confirmButton'),
           onPress: () => router.push('/auth/login'),
         },
       ]);
     } catch (error: any) {
       console.error('注销账号失败:', error);
-      const message = error?.message || '注销失败，请稍后重试';
-      Alert.alert('注销失败', message);
+      const message = error?.message || t('authGuard.deleteAccount.errorMessage');
+      Alert.alert(t('authGuard.deleteAccount.errorTitle'), message);
     }
-  }, [dispatch, router]);
+  }, [dispatch, router, t]);
 
   // 带确认对话框的注销账号
   const confirmDeleteAccount = useCallback(() => {
     Alert.alert(
-      '确认注销账号',
-      '此操作不可恢复，将删除您的账号及相关数据。确定继续吗？',
+      t('authGuard.confirmDeleteAccount.title'),
+      t('authGuard.confirmDeleteAccount.message'),
       [
         {
-          text: '取消',
+          text: t('authGuard.confirmDeleteAccount.cancelButton'),
           style: 'cancel',
         },
         {
-          text: '确认注销',
+          text: t('authGuard.confirmDeleteAccount.confirmButton'),
           style: 'destructive',
           onPress: handleDeleteAccount,
         },
       ],
       { cancelable: true }
     );
-  }, [handleDeleteAccount]);
+  }, [handleDeleteAccount, t]);
 
   return {
     isLoggedIn,

utils/date.ts

@@ -1,6 +1,8 @@
 import dayjs, { Dayjs } from 'dayjs';
+import 'dayjs/locale/en';
 import 'dayjs/locale/zh-cn';
 
+// 默认使用中文，可以通过参数切换
 dayjs.locale('zh-cn');
 
 /**
@@ -61,9 +63,54 @@ export function getMonthDaysZh(date: Dayjs = dayjs()): MonthDay[] {
   });
 }
 
-/** 获取“今天”在当月的索引（0 基） */
+/** 获取"今天"在当月的索引（0 基） */
 export function getTodayIndexInMonth(date: Dayjs = dayjs()): number {
   return date.date() - 1;
 }
 
+/** 获取某月的所有日期（多语言版本） */
+export function getMonthDays(date: Dayjs = dayjs(), locale: 'zh' | 'en' = 'zh'): MonthDay[] {
+  const year = date.year();
+  const monthIndex = date.month();
+  const daysInMonth = date.daysInMonth();
+  
+  // 根据语言选择星期显示
+  const weekDays = locale === 'zh'
+    ? ['日', '一', '二', '三', '四', '五', '六']
+    : ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
+  
+  const today = dayjs();
+
+  return Array.from({ length: daysInMonth }, (_, i) => {
+    const d = dayjs(new Date(year, monthIndex, i + 1));
+    const isToday = d.isSame(today, 'day');
+
+    return {
+      weekdayZh: weekDays[d.day()], // 保持原有字段名兼容性
+      dayAbbr: weekDays[d.day()],
+      dayOfMonth: i + 1,
+      date: d,
+      isToday,
+    };
+  });
+}
+
+/** 获取本地化的月份日期格式 */
+export function getLocalizedDateFormat(date: Dayjs, locale: 'zh' | 'en' = 'zh'): string {
+  if (locale === 'zh') {
+    return date.format('M月D日');
+  } else {
+    return date.format('MMM D');
+  }
+}
+
+/** 获取本地化的月份标题 */
+export function getMonthTitle(date: Dayjs = dayjs(), locale: 'zh' | 'en' = 'zh'): string {
+  if (locale === 'zh') {
+    return date.format('YY年M月');
+  } else {
+    return date.format('MMM YYYY');
+  }
+}
+