diff --git a/.gitignore b/.gitignore
index 8e62dc7..031e880 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,8 @@ coverage
 .env
 .env.local
 *.log
+/.tmp/
+/docs/
 apps/api/prisma/dev.db
 apps/api/prisma/dev.db-journal
 apps/api/prisma/test.db
diff --git a/apps/web/src/pages/SettingsPage.vue b/apps/web/src/pages/SettingsPage.vue
index 4b1d2a6..91a91a5 100644
--- a/apps/web/src/pages/SettingsPage.vue
+++ b/apps/web/src/pages/SettingsPage.vue
@@ -568,7 +568,7 @@
                         />
                       </div>
                     </template>
-                    <span>需先启用至少一个直达通知渠道</span>
+                    <span>{{ t('settings.helps.forgotPasswordChannelRequired') }}</span>
                   </n-tooltip>
                   <n-switch
                     v-else
@@ -1400,10 +1400,10 @@ async function handleForgotPasswordToggleChange(value: boolean) {
       forgotPasswordEnabled: value
     })
     applySavedSettings(result)
-    message.success(value ? '找回密码已开启' : '找回密码已关闭')
+    message.success(value ? t('settings.messages.forgotPasswordEnabled') : t('settings.messages.forgotPasswordDisabled'))
   } catch (error) {
     settingsForm.forgotPasswordEnabled = previousValue
-    message.error(error instanceof Error ? error.message : '找回密码设置保存失败')
+    message.error(error instanceof Error ? error.message : t('settings.messages.forgotPasswordSaveFailed'))
   } finally {
     savingForgotPasswordToggle.value = false
   }
diff --git a/apps/web/src/utils/currency.ts b/apps/web/src/utils/currency.ts
index d7f20af..79562e2 100644
--- a/apps/web/src/utils/currency.ts
+++ b/apps/web/src/utils/currency.ts
@@ -3,10 +3,13 @@ import { getAppLocale } from '@/locales'
 
 export function getCurrencyLabel(code: string) {
   const upper = code.toUpperCase()
-  if (getAppLocale() === 'en-US' && typeof Intl !== 'undefined' && typeof Intl.DisplayNames === 'function') {
-    const displayNames = new Intl.DisplayNames(['en-US'], { type: 'currency' })
-    const englishName = displayNames.of(upper)
-    return englishName ? `${englishName} (${upper})` : upper
+  const locale = getAppLocale()
+  if (typeof Intl !== 'undefined' && typeof Intl.DisplayNames === 'function') {
+    const displayNames = new Intl.DisplayNames([locale], { type: 'currency' })
+    const localizedName = displayNames.of(upper)
+    if (localizedName && localizedName !== upper) {
+      return `${localizedName} (${upper})`
+    }
   }
 
   const name = (currencyNameMap as Record<string, string>)[upper]
diff --git a/apps/web/src/utils/reminder-rules.ts b/apps/web/src/utils/reminder-rules.ts
index 5fdc4a3..07228ee 100644
--- a/apps/web/src/utils/reminder-rules.ts
+++ b/apps/web/src/utils/reminder-rules.ts
@@ -1,3 +1,5 @@
+import { DEFAULT_APP_LOCALE, getMessage, type AppLocale } from '@subtracker/shared'
+
 export type ReminderRulesKind = 'advance' | 'overdue'
 
 export type ReminderRuleEntry = {
@@ -51,31 +53,31 @@ function formatI18n(template: string, params: Record<string, string | number>) {
   return template.replace(/\{(\w+)\}/g, (_match, key) => String(params[key] ?? `{${key}}`))
 }
 
-function getDefaultI18n(): ReminderRulesI18n {
+export function getDefaultReminderRulesI18n(locale: AppLocale = DEFAULT_APP_LOCALE): ReminderRulesI18n {
   return {
-    fallback: '沿用系统默认',
-    emptyTitle: '请先输入规则后再演算',
-    resultTitle: '演算结果',
-    invalidTitle: '规则格式有误',
-    defaultRulesLabel: '系统默认规则',
-    defaultAdvanceRulesLabel: '系统默认到期前规则',
-    defaultOverdueRulesLabel: '系统默认过期规则',
-    fallbackPreviewTitle: '当前未填写，以下按{label}演算',
-    fallbackInvalidTitle: '{label}格式有误',
-    noAdvance: '暂无到期前提醒规则',
-    noOverdue: '暂无过期提醒规则',
-    parseFailed: '规则解析失败',
-    invalidSegmentFormat: '规则 "{segment}" 格式无效，应为 天数&HH:mm',
-    invalidDaysInteger: '规则 "{segment}" 中的天数必须为整数',
-    invalidOverdueDays: '规则 "{segment}" 中的天数必须大于等于 1',
-    invalidAdvanceDays: '规则 "{segment}" 中的天数不能小于 0',
-    invalidTime: '规则 "{segment}" 中的时间必须为 HH:mm',
-    inlineAdvanceSameDay: '当天 {time}',
-    inlineAdvanceBefore: '提前 {days} 天 {time}',
-    inlineOverdue: '过期 {days} 天 {time}',
-    evalAdvanceSameDay: '到期当天 {time} 提醒',
-    evalAdvanceBefore: '提前 {days} 天 {time} 提醒',
-    evalOverdue: '过期 {days} 天 {time} 提醒'
+    fallback: getMessage(locale, 'validation.reminderRules.fallback'),
+    emptyTitle: getMessage(locale, 'validation.reminderRules.emptyTitle'),
+    resultTitle: getMessage(locale, 'validation.reminderRules.resultTitle'),
+    invalidTitle: getMessage(locale, 'validation.reminderRules.invalidTitle'),
+    defaultRulesLabel: getMessage(locale, 'validation.reminderRules.defaultRulesLabel'),
+    defaultAdvanceRulesLabel: getMessage(locale, 'validation.reminderRules.defaultAdvanceRulesLabel'),
+    defaultOverdueRulesLabel: getMessage(locale, 'validation.reminderRules.defaultOverdueRulesLabel'),
+    fallbackPreviewTitle: getMessage(locale, 'validation.reminderRules.fallbackPreviewTitle', { label: '{label}' }),
+    fallbackInvalidTitle: getMessage(locale, 'validation.reminderRules.fallbackInvalidTitle', { label: '{label}' }),
+    noAdvance: getMessage(locale, 'validation.reminderRules.noAdvance'),
+    noOverdue: getMessage(locale, 'validation.reminderRules.noOverdue'),
+    parseFailed: getMessage(locale, 'validation.reminderRules.parseFailed'),
+    invalidSegmentFormat: getMessage(locale, 'validation.reminderRules.invalidSegmentFormat', { segment: '{segment}' }),
+    invalidDaysInteger: getMessage(locale, 'validation.reminderRules.invalidDaysInteger', { segment: '{segment}' }),
+    invalidOverdueDays: getMessage(locale, 'validation.reminderRules.invalidOverdueDays', { segment: '{segment}' }),
+    invalidAdvanceDays: getMessage(locale, 'validation.reminderRules.invalidAdvanceDays', { segment: '{segment}' }),
+    invalidTime: getMessage(locale, 'validation.reminderRules.invalidTime', { segment: '{segment}' }),
+    inlineAdvanceSameDay: getMessage(locale, 'validation.reminderRules.inlineAdvanceSameDay', { time: '{time}' }),
+    inlineAdvanceBefore: getMessage(locale, 'validation.reminderRules.inlineAdvanceBefore', { days: '{days}', time: '{time}' }),
+    inlineOverdue: getMessage(locale, 'validation.reminderRules.inlineOverdue', { days: '{days}', time: '{time}' }),
+    evalAdvanceSameDay: getMessage(locale, 'validation.reminderRules.evalAdvanceSameDay', { time: '{time}' }),
+    evalAdvanceBefore: getMessage(locale, 'validation.reminderRules.evalAdvanceBefore', { days: '{days}', time: '{time}' }),
+    evalOverdue: getMessage(locale, 'validation.reminderRules.evalOverdue', { days: '{days}', time: '{time}' })
   }
 }
 
@@ -172,20 +174,21 @@ function toEvaluationDescription(rule: ParsedReminderRule, kind: ReminderRulesKi
 export function formatReminderRulesText(
   value: string | null | undefined,
   kind: ReminderRulesKind,
-  fallback = getDefaultI18n().fallback,
+  fallback?: string,
   options?: {
     i18n?: Partial<ReminderRulesI18n>
   }
 ) {
-  const copy = { ...getDefaultI18n(), ...options?.i18n }
-  if (!value?.trim()) return fallback
+  const copy = { ...getDefaultReminderRulesI18n(), ...options?.i18n }
+  const fallbackText = fallback ?? copy.fallback
+  if (!value?.trim()) return fallbackText
 
   try {
     const parts = parseReminderRulesStrict(value, kind, copy)
-    if (!parts.length) return fallback
+    if (!parts.length) return fallbackText
     return parts.map((item) => toInlineDescription(item, kind, copy)).join('；')
   } catch {
-    return fallback
+    return fallbackText
   }
 }
 
@@ -197,7 +200,7 @@ export function listReminderRuleDescriptions(
     i18n?: Partial<ReminderRulesI18n>
   }
 ) {
-  const copy = { ...getDefaultI18n(), ...options?.i18n }
+  const copy = { ...getDefaultReminderRulesI18n(), ...options?.i18n }
   const currentValue = value?.trim() ?? ''
 
   try {
@@ -223,7 +226,7 @@ export function evaluateReminderRules(
     i18n?: Partial<ReminderRulesI18n>
   }
 ): ReminderRulesEvaluation {
-  const copy = { ...getDefaultI18n(), ...options?.i18n }
+  const copy = { ...getDefaultReminderRulesI18n(), ...options?.i18n }
   const fallbackLabel =
     options?.fallbackLabel ??
     (kind === 'advance' ? copy.defaultAdvanceRulesLabel : kind === 'overdue' ? copy.defaultOverdueRulesLabel : copy.defaultRulesLabel)
diff --git a/apps/web/src/utils/statistics-top-subscriptions.ts b/apps/web/src/utils/statistics-top-subscriptions.ts
index 5364879..4d9fa2a 100644
--- a/apps/web/src/utils/statistics-top-subscriptions.ts
+++ b/apps/web/src/utils/statistics-top-subscriptions.ts
@@ -1,3 +1,5 @@
+import { getMessage } from '@subtracker/shared'
+import { getAppLocale } from '@/locales'
 import type { StatisticsOverview } from '@/types/api'
 
 interface TopSubscriptionsThemeTokens {
@@ -15,6 +17,7 @@ export function buildTopSubscriptionsOption(
 ) {
   const data = (items ?? []).slice(0, 10)
   if (!data.length) return null
+  const locale = getAppLocale()
 
   return {
     tooltip: {
@@ -29,7 +32,7 @@ export function buildTopSubscriptionsOption(
     grid: { left: 160, right: 24, top: 20, bottom: 20 },
     xAxis: {
       type: 'value',
-      name: `金额(${baseCurrency})`,
+      name: getMessage(locale, 'statistics.labels.amountAxis', { currency: baseCurrency }),
       nameTextStyle: {
         color: theme?.secondaryTextColor
       },
diff --git a/apps/web/src/utils/timezone.ts b/apps/web/src/utils/timezone.ts
index 8b09582..a209a94 100644
--- a/apps/web/src/utils/timezone.ts
+++ b/apps/web/src/utils/timezone.ts
@@ -2,6 +2,7 @@ import dayjs from 'dayjs'
 import utc from 'dayjs/plugin/utc.js'
 import timezone from 'dayjs/plugin/timezone.js'
 import customParseFormat from 'dayjs/plugin/customParseFormat.js'
+import { getMessage } from '@subtracker/shared'
 import { getAppLocale } from '@/locales'
 
 dayjs.extend(utc)
@@ -154,7 +155,7 @@ export function addIntervalToPickerTs(
 export function formatMonthLabelInTimezone(value: Date | string | number, timezoneValue = DEFAULT_APP_TIMEZONE) {
   const locale = getAppLocale()
   const date = toTimezonedDayjs(typeof value === 'number' ? new Date(value) : value, timezoneValue)
-  return locale === 'en-US' ? date.format('MMMM YYYY') : date.format('YYYY 年 M 月')
+  return date.locale(locale).format(getMessage(locale, 'formatting.monthLabel.long'))
 }
 
 export function addIntervalToBusinessDateString(
diff --git a/apps/web/tests/unit/components/settings-import-export.test.ts b/apps/web/tests/unit/components/settings-import-export.test.ts
index 57b6bb4..ae9f225 100644
--- a/apps/web/tests/unit/components/settings-import-export.test.ts
+++ b/apps/web/tests/unit/components/settings-import-export.test.ts
@@ -76,7 +76,7 @@ describe('settings import export section', () => {
     expect(source).toContain('forgotPasswordToggleUnlocked')
     expect(source).toContain('savingForgotPasswordToggle')
     expect(source).toContain('handleForgotPasswordToggleChange')
-    expect(source).toContain('需先启用至少一个直达通知渠道')
+    expect(source).toContain("t('settings.helps.forgotPasswordChannelRequired')")
     expect(source).toContain("@update:value=\"handleForgotPasswordToggleChange\"")
     expect(source).toContain('switch-group switch-group--single')
     expect(source).toContain('switch-inline-label')
diff --git a/apps/web/tests/unit/utils/reminder-rules.test.ts b/apps/web/tests/unit/utils/reminder-rules.test.ts
index 4259b8b..bf7c94a 100644
--- a/apps/web/tests/unit/utils/reminder-rules.test.ts
+++ b/apps/web/tests/unit/utils/reminder-rules.test.ts
@@ -76,4 +76,40 @@ describe('reminder rules helpers', () => {
       { key: '2&09:30', description: '过期 2 天 09:30' }
     ])
   })
+
+  it('supports localized reminder rule copy overrides', () => {
+    const copy = {
+      fallback: 'Use the system default',
+      resultTitle: 'Preview result',
+      invalidTitle: 'Invalid rule format',
+      defaultRulesLabel: 'system default rules',
+      defaultAdvanceRulesLabel: 'system default pre-renewal rules',
+      defaultOverdueRulesLabel: 'system default overdue rules',
+      fallbackPreviewTitle: 'No value entered. Previewing with {label}',
+      fallbackInvalidTitle: '{label} is invalid',
+      noAdvance: 'No pre-renewal reminder rules',
+      noOverdue: 'No overdue reminder rules',
+      parseFailed: 'Failed to parse rules',
+      invalidSegmentFormat: 'Rule "{segment}" is invalid. Expected format: days&HH:mm',
+      invalidDaysInteger: 'The days value in rule "{segment}" must be an integer',
+      invalidOverdueDays: 'The days value in rule "{segment}" must be greater than or equal to 1',
+      invalidAdvanceDays: 'The days value in rule "{segment}" cannot be less than 0',
+      invalidTime: 'The time value in rule "{segment}" must use HH:mm',
+      inlineAdvanceSameDay: 'On the due date at {time}',
+      inlineAdvanceBefore: '{days} day(s) before at {time}',
+      inlineOverdue: 'On overdue day {days} at {time}',
+      evalAdvanceSameDay: 'Remind on the due date at {time}',
+      evalAdvanceBefore: 'Remind {days} day(s) before at {time}',
+      evalOverdue: 'Remind on overdue day {days} at {time}'
+    }
+
+    expect(formatReminderRulesText('', 'advance', undefined, { i18n: copy })).toBe('Use the system default')
+    expect(formatReminderRulesText('3&09:30;0&09:30;', 'advance', undefined, { i18n: copy })).toBe(
+      '3 day(s) before at 09:30；On the due date at 09:30'
+    )
+
+    const result = evaluateReminderRules('1&09:30;', 'overdue', { i18n: copy })
+    expect(result.title).toBe('Preview result')
+    expect(result.entries.map((item) => item.description)).toEqual(['Remind on overdue day 1 at 09:30'])
+  })
 })
diff --git a/apps/web/tests/unit/utils/statistics-top-subscriptions.test.ts b/apps/web/tests/unit/utils/statistics-top-subscriptions.test.ts
index 148cf60..b5cdf91 100644
--- a/apps/web/tests/unit/utils/statistics-top-subscriptions.test.ts
+++ b/apps/web/tests/unit/utils/statistics-top-subscriptions.test.ts
@@ -23,6 +23,7 @@ describe('buildTopSubscriptionsOption', () => {
 
     expect(option?.yAxis.data).toEqual(['Netflix'])
     expect(option?.yAxis.inverse).toBe(true)
+    expect(option?.xAxis.name).toBe('金额（CNY）')
     expect(option?.series[0].data).toEqual([88])
   })