diff --git a/frontend/src/components/user/profile/ProfileAvatarCard.vue b/frontend/src/components/user/profile/ProfileAvatarCard.vue
index 9945f7b7..44b83947 100644
--- a/frontend/src/components/user/profile/ProfileAvatarCard.vue
+++ b/frontend/src/components/user/profile/ProfileAvatarCard.vue
@@ -92,7 +92,7 @@ const avatarQualitySteps = [0.92, 0.84, 0.76, 0.68, 0.6, 0.52, 0.44, 0.36]
 const avatarDraft = ref('')
 const avatarSaving = ref(false)
 
-const displayName = computed(() => props.user?.username?.trim() || props.user?.email?.trim() || 'User')
+const displayName = computed(() => props.user?.username?.trim() || props.user?.email?.trim() || t('profile.user'))
 const avatarInitial = computed(() => displayName.value.charAt(0).toUpperCase() || 'U')
 const avatarPreviewUrl = computed(() => avatarDraft.value.trim() || props.user?.avatar_url?.trim() || '')
 
diff --git a/frontend/src/components/user/profile/ProfileInfoCard.vue b/frontend/src/components/user/profile/ProfileInfoCard.vue
index d18cfbc9..41a0e31c 100644
--- a/frontend/src/components/user/profile/ProfileInfoCard.vue
+++ b/frontend/src/components/user/profile/ProfileInfoCard.vue
@@ -29,7 +29,11 @@
             <span
               :class="['badge', user?.status === 'active' ? 'badge-success' : 'badge-danger']"
             >
-              {{ user?.status }}
+              {{
+                user?.status === 'active'
+                  ? t('common.active')
+                  : t('common.disabled')
+              }}
             </span>
           </div>
         </div>
@@ -80,7 +84,7 @@ const props = defineProps<{
 const { t } = useI18n()
 
 const avatarUrl = computed(() => props.user?.avatar_url?.trim() || '')
-const displayName = computed(() => props.user?.username?.trim() || props.user?.email?.trim() || 'User')
+const displayName = computed(() => props.user?.username?.trim() || props.user?.email?.trim() || t('profile.user'))
 const avatarInitial = computed(() => displayName.value.charAt(0).toUpperCase() || 'U')
 
 const providerLabels = computed<Record<UserAuthProvider, string>>(() => ({
diff --git a/frontend/src/components/user/profile/ProfilePasswordForm.vue b/frontend/src/components/user/profile/ProfilePasswordForm.vue
index d44cac68..e906973d 100644
--- a/frontend/src/components/user/profile/ProfilePasswordForm.vue
+++ b/frontend/src/components/user/profile/ProfilePasswordForm.vue
@@ -50,12 +50,6 @@
             autocomplete="new-password"
             class="input"
           />
-          <p
-            v-if="form.new_password && form.confirm_password && form.new_password !== form.confirm_password"
-            class="input-error-text"
-          >
-            {{ t('profile.passwordsNotMatch') }}
-          </p>
         </div>
 
         <div class="flex justify-end pt-4">
diff --git a/frontend/src/components/user/profile/TotpDisableDialog.vue b/frontend/src/components/user/profile/TotpDisableDialog.vue
index cd93764c..c5e9afe7 100644
--- a/frontend/src/components/user/profile/TotpDisableDialog.vue
+++ b/frontend/src/components/user/profile/TotpDisableDialog.vue
@@ -63,11 +63,6 @@
             />
           </div>
 
-          <!-- Error -->
-          <div v-if="error" class="rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
-            {{ error }}
-          </div>
-
           <!-- Actions -->
           <div class="flex justify-end gap-3 pt-4">
             <button type="button" class="btn btn-secondary" @click="$emit('close')">
@@ -104,7 +99,6 @@ const appStore = useAppStore()
 const methodLoading = ref(true)
 const verificationMethod = ref<'email' | 'password'>('password')
 const loading = ref(false)
-const error = ref('')
 const sendingCode = ref(false)
 const codeCooldown = ref(0)
 const cooldownTimer = ref<ReturnType<typeof setInterval> | null>(null)
@@ -164,7 +158,6 @@ const handleDisable = async () => {
   if (!canSubmit.value) return
 
   loading.value = true
-  error.value = ''
 
   try {
     const request = verificationMethod.value === 'email'
@@ -175,7 +168,7 @@ const handleDisable = async () => {
     appStore.showSuccess(t('profile.totp.disableSuccess'))
     emit('success')
   } catch (err: any) {
-    error.value = err.response?.data?.message || t('profile.totp.disableFailed')
+    appStore.showError(err.response?.data?.message || t('profile.totp.disableFailed'))
   } finally {
     loading.value = false
   }
diff --git a/frontend/src/components/user/profile/TotpSetupModal.vue b/frontend/src/components/user/profile/TotpSetupModal.vue
index b544e75b..312ecf7f 100644
--- a/frontend/src/components/user/profile/TotpSetupModal.vue
+++ b/frontend/src/components/user/profile/TotpSetupModal.vue
@@ -61,10 +61,6 @@
               </div>
             </div>
 
-            <div v-if="verifyError" class="rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
-              {{ verifyError }}
-            </div>
-
             <div class="flex justify-end gap-3 pt-4">
               <button type="button" class="btn btn-secondary" @click="$emit('close')">
                 {{ t('common.cancel') }}
@@ -151,10 +147,6 @@
               </div>
             </div>
 
-            <div v-if="error" class="mb-4 rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
-              {{ error }}
-            </div>
-
             <div class="flex justify-end gap-3">
               <button type="button" class="btn btn-secondary" @click="step = 1">
                 {{ t('common.back') }}
@@ -195,7 +187,6 @@ const step = ref(0)
 const methodLoading = ref(true)
 const verificationMethod = ref<'email' | 'password'>('password')
 const verifyForm = ref({ emailCode: '', password: '' })
-const verifyError = ref('')
 const sendingCode = ref(false)
 const codeCooldown = ref(0)
 const cooldownTimer = ref<ReturnType<typeof setInterval> | null>(null)
@@ -203,7 +194,6 @@ const cooldownTimer = ref<ReturnType<typeof setInterval> | null>(null)
 const setupLoading = ref(false)
 const setupData = ref<TotpSetupResponse | null>(null)
 const verifying = ref(false)
-const error = ref('')
 const code = ref<string[]>(['', '', '', '', '', ''])
 const inputRefs = ref<(HTMLInputElement | null)[]>([])
 const qrCodeDataUrl = ref('')
@@ -361,7 +351,6 @@ const handleSendCode = async () => {
 
 const handleVerifyAndSetup = async () => {
   setupLoading.value = true
-  verifyError.value = ''
 
   try {
     const request = verificationMethod.value === 'email'
@@ -371,7 +360,7 @@ const handleVerifyAndSetup = async () => {
     setupData.value = await totpAPI.initiateSetup(request)
     step.value = 1
   } catch (err: any) {
-    verifyError.value = err.response?.data?.message || t('profile.totp.setupFailed')
+    appStore.showError(err.response?.data?.message || t('profile.totp.setupFailed'))
   } finally {
     setupLoading.value = false
   }
@@ -382,7 +371,6 @@ const handleVerify = async () => {
   if (totpCode.length !== 6 || !setupData.value) return
 
   verifying.value = true
-  error.value = ''
 
   try {
     await totpAPI.enable({
@@ -392,7 +380,7 @@ const handleVerify = async () => {
     appStore.showSuccess(t('profile.totp.enableSuccess'))
     emit('success')
   } catch (err: any) {
-    error.value = err.response?.data?.message || t('profile.totp.verifyFailed')
+    appStore.showError(err.response?.data?.message || t('profile.totp.verifyFailed'))
     code.value = ['', '', '', '', '', '']
     nextTick(() => {
       inputRefs.value[0]?.focus()
diff --git a/frontend/src/components/user/profile/__tests__/ProfilePasswordForm.spec.ts b/frontend/src/components/user/profile/__tests__/ProfilePasswordForm.spec.ts
new file mode 100644
index 00000000..b7b22966
--- /dev/null
+++ b/frontend/src/components/user/profile/__tests__/ProfilePasswordForm.spec.ts
@@ -0,0 +1,79 @@
+import { mount } from '@vue/test-utils'
+import { describe, expect, it, vi } from 'vitest'
+import ProfilePasswordForm from '@/components/user/profile/ProfilePasswordForm.vue'
+
+const { changePasswordMock, showSuccessMock, showErrorMock } = vi.hoisted(() => ({
+  changePasswordMock: vi.fn(),
+  showSuccessMock: vi.fn(),
+  showErrorMock: vi.fn()
+}))
+
+vi.mock('@/api', () => ({
+  userAPI: {
+    changePassword: changePasswordMock
+  }
+}))
+
+vi.mock('@/stores/app', () => ({
+  useAppStore: () => ({
+    showSuccess: showSuccessMock,
+    showError: showErrorMock
+  })
+}))
+
+vi.mock('vue-i18n', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('vue-i18n')>()
+  return {
+    ...actual,
+    useI18n: () => ({
+      t: (key: string) => {
+        const translations: Record<string, string> = {
+          'profile.changePassword': 'Change Password',
+          'profile.currentPassword': 'Current Password',
+          'profile.newPassword': 'New Password',
+          'profile.confirmNewPassword': 'Confirm New Password',
+          'profile.passwordHint': 'Password must be at least 8 characters long',
+          'profile.changingPassword': 'Changing...',
+          'profile.changePasswordButton': 'Change Password',
+          'profile.passwordsNotMatch': 'New passwords do not match',
+          'profile.passwordTooShort': 'Password must be at least 8 characters long',
+          'profile.passwordChangeSuccess': 'Password changed successfully',
+          'profile.passwordChangeFailed': 'Failed to change password'
+        }
+        return translations[key] ?? key
+      }
+    })
+  }
+})
+
+describe('ProfilePasswordForm', () => {
+  it('shows validation failures as toast messages instead of inline errors', async () => {
+    const wrapper = mount(ProfilePasswordForm)
+
+    await wrapper.get('#old_password').setValue('old-password')
+    await wrapper.get('#new_password').setValue('new-password')
+    await wrapper.get('#confirm_password').setValue('different-password')
+    await wrapper.get('form').trigger('submit.prevent')
+
+    expect(changePasswordMock).not.toHaveBeenCalled()
+    expect(showErrorMock).toHaveBeenCalledWith('New passwords do not match')
+    expect(wrapper.find('.input-error-text').exists()).toBe(false)
+  })
+
+  it('shows API failures as toast messages', async () => {
+    changePasswordMock.mockRejectedValue({
+      response: { data: { detail: 'backend failure' } }
+    })
+
+    const wrapper = mount(ProfilePasswordForm)
+
+    await wrapper.get('#old_password').setValue('old-password')
+    await wrapper.get('#new_password').setValue('new-password')
+    await wrapper.get('#confirm_password').setValue('new-password')
+    await wrapper.get('form').trigger('submit.prevent')
+
+    expect(changePasswordMock).toHaveBeenCalledWith('old-password', 'new-password')
+    expect(showErrorMock).toHaveBeenCalledWith('backend failure')
+    expect(wrapper.find('.input-error-text').exists()).toBe(false)
+  })
+})
diff --git a/frontend/src/components/user/profile/__tests__/totp-timer-cleanup.spec.ts b/frontend/src/components/user/profile/__tests__/totp-timer-cleanup.spec.ts
index 0259f902..44d9fcf9 100644
--- a/frontend/src/components/user/profile/__tests__/totp-timer-cleanup.spec.ts
+++ b/frontend/src/components/user/profile/__tests__/totp-timer-cleanup.spec.ts
@@ -7,7 +7,10 @@ const mocks = vi.hoisted(() => ({
   showSuccess: vi.fn(),
   showError: vi.fn(),
   getVerificationMethod: vi.fn(),
-  sendVerifyCode: vi.fn()
+  sendVerifyCode: vi.fn(),
+  initiateSetup: vi.fn(),
+  enable: vi.fn(),
+  disable: vi.fn()
 }))
 
 vi.mock('vue-i18n', () => ({
@@ -27,9 +30,9 @@ vi.mock('@/api', () => ({
   totpAPI: {
     getVerificationMethod: mocks.getVerificationMethod,
     sendVerifyCode: mocks.sendVerifyCode,
-    initiateSetup: vi.fn(),
-    enable: vi.fn(),
-    disable: vi.fn()
+    initiateSetup: mocks.initiateSetup,
+    enable: mocks.enable,
+    disable: mocks.disable
   }
 }))
 
@@ -49,9 +52,19 @@ describe('TOTP 弹窗定时器清理', () => {
     mocks.showError.mockReset()
     mocks.getVerificationMethod.mockReset()
     mocks.sendVerifyCode.mockReset()
+    mocks.initiateSetup.mockReset()
+    mocks.enable.mockReset()
+    mocks.disable.mockReset()
 
     mocks.getVerificationMethod.mockResolvedValue({ method: 'email' })
     mocks.sendVerifyCode.mockResolvedValue({ success: true })
+    mocks.initiateSetup.mockResolvedValue({
+      qr_code_url: 'otpauth://totp/Sub2API:test?secret=ABC123',
+      secret: 'ABC123',
+      setup_token: 'setup-token'
+    })
+    mocks.enable.mockResolvedValue({ success: true })
+    mocks.disable.mockResolvedValue({ success: true })
 
     setIntervalSpy = vi.spyOn(window, 'setInterval').mockImplementation(((handler: TimerHandler) => {
       void handler
@@ -105,4 +118,40 @@ describe('TOTP 弹窗定时器清理', () => {
 
     expect(clearIntervalSpy).toHaveBeenCalledWith(timerId)
   })
+
+  it('TotpSetupModal 失败时改用 toast 并不渲染内联错误', async () => {
+    mocks.getVerificationMethod.mockResolvedValue({ method: 'password' })
+    mocks.initiateSetup.mockRejectedValue({
+      response: { data: { message: 'setup failed' } }
+    })
+
+    const wrapper = mount(TotpSetupModal)
+    await flushPromises()
+
+    await wrapper.get('input[type="password"]').setValue('correct horse battery staple')
+    await wrapper.get('button[type="button"].btn-primary').trigger('click')
+    await flushPromises()
+
+    expect(mocks.showError).toHaveBeenCalledWith('setup failed')
+    expect(wrapper.text()).not.toContain('setup failed')
+    expect(wrapper.find('.bg-red-50').exists()).toBe(false)
+  })
+
+  it('TotpDisableDialog 失败时改用 toast 并不渲染内联错误', async () => {
+    mocks.getVerificationMethod.mockResolvedValue({ method: 'password' })
+    mocks.disable.mockRejectedValue({
+      response: { data: { message: 'disable failed' } }
+    })
+
+    const wrapper = mount(TotpDisableDialog)
+    await flushPromises()
+
+    await wrapper.get('input[type="password"]').setValue('correct horse battery staple')
+    await wrapper.get('form').trigger('submit.prevent')
+    await flushPromises()
+
+    expect(mocks.showError).toHaveBeenCalledWith('disable failed')
+    expect(wrapper.text()).not.toContain('disable failed')
+    expect(wrapper.find('.bg-red-50').exists()).toBe(false)
+  })
 })
diff --git a/frontend/src/views/admin/SettingsView.vue b/frontend/src/views/admin/SettingsView.vue
index d3683fcd..ef4a13e8 100644
--- a/frontend/src/views/admin/SettingsView.vue
+++ b/frontend/src/views/admin/SettingsView.vue
@@ -1372,30 +1372,20 @@
               class="border-b border-gray-100 px-6 py-4 dark:border-dark-700"
             >
               <h2 class="text-lg font-semibold text-gray-900 dark:text-white">
-                {{ localText("微信登录", "WeChat Connect") }}
+                {{ t("admin.settings.wechatConnect.title") }}
               </h2>
               <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
-                {{
-                  localText(
-                    "用于微信开放平台或公众号/小程序的第三方登录配置。",
-                    "Third-party login configuration for WeChat Open Platform or Official Account / Mini Program.",
-                  )
-                }}
+                {{ t("admin.settings.wechatConnect.description") }}
               </p>
             </div>
             <div class="space-y-5 p-6">
               <div class="flex items-center justify-between">
                 <div>
                   <label class="font-medium text-gray-900 dark:text-white">{{
-                    localText("启用微信登录", "Enable WeChat Connect")
+                    t("admin.settings.wechatConnect.enabledLabel")
                   }}</label>
                   <p class="text-sm text-gray-500 dark:text-gray-400">
-                    {{
-                      localText(
-                        "开启后可使用微信第三方登录回调与授权配置。",
-                        "Enable this to configure WeChat OAuth callbacks and authorization.",
-                      )
-                    }}
+                    {{ t("admin.settings.wechatConnect.enabledHint") }}
                   </p>
                 </div>
                 <Toggle
@@ -1413,16 +1403,14 @@
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
-                      {{ localText("AppID", "App ID") }}
+                      {{ t("admin.settings.wechatConnect.appIdLabel") }}
                     </label>
                     <input
                       data-testid="wechat-connect-app-id"
                       v-model="form.wechat_connect_app_id"
                       type="text"
                       class="input font-mono text-sm"
-                      :placeholder="
-                        localText('微信开放平台 AppID', 'WeChat App ID')
-                      "
+                      :placeholder="t('admin.settings.wechatConnect.appIdPlaceholder')"
                     />
                   </div>
 
@@ -1430,7 +1418,7 @@
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
-                      {{ localText("AppSecret", "App Secret") }}
+                      {{ t("admin.settings.wechatConnect.appSecretLabel") }}
                     </label>
                     <input
                       data-testid="wechat-connect-app-secret"
@@ -1439,27 +1427,15 @@
                       class="input font-mono text-sm"
                       :placeholder="
                         form.wechat_connect_app_secret_configured
-                          ? localText(
-                              '密钥已配置，留空以保留当前值。',
-                              'Secret configured. Leave empty to keep the current value.',
-                            )
-                          : localText(
-                              '微信开放平台 AppSecret',
-                              'WeChat App Secret',
-                            )
+                          ? t('admin.settings.wechatConnect.appSecretConfiguredPlaceholder')
+                          : t('admin.settings.wechatConnect.appSecretPlaceholder')
                       "
                     />
                     <p class="mt-1.5 text-xs text-gray-500 dark:text-gray-400">
                       {{
                         form.wechat_connect_app_secret_configured
-                          ? localText(
-                              "密钥已配置，留空以保留当前值。",
-                              "Secret configured. Leave empty to keep the current value.",
-                            )
-                          : localText(
-                              "填写后会覆盖当前微信密钥。",
-                              "Enter a new secret to replace the current WeChat credential.",
-                            )
+                          ? t('admin.settings.wechatConnect.appSecretConfiguredHint')
+                          : t('admin.settings.wechatConnect.appSecretHint')
                       }}
                     </p>
                   </div>
@@ -1470,29 +1446,19 @@
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
-                      {{ localText("模式", "Mode") }}
+                      {{ t("admin.settings.wechatConnect.modeLabel") }}
                     </label>
                     <div
                       class="flex items-center justify-between rounded border border-gray-200 px-4 py-3 dark:border-dark-700"
                     >
                       <div>
                         <div class="font-medium text-gray-900 dark:text-white">
-                          {{
-                            localText(
-                              "非微信环境使用开放平台",
-                              "Use Open outside WeChat",
-                            )
-                          }}
+                          {{ t("admin.settings.wechatConnect.openModeLabel") }}
                         </div>
                         <p
                           class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
                         >
-                          {{
-                            localText(
-                              "浏览器不在微信内时，自动走开放平台扫码授权。",
-                              "Use Open Platform QR authorization outside the WeChat browser.",
-                            )
-                          }}
+                          {{ t("admin.settings.wechatConnect.openModeHint") }}
                         </p>
                       </div>
                       <Toggle
@@ -1506,22 +1472,12 @@
                     >
                       <div>
                         <div class="font-medium text-gray-900 dark:text-white">
-                          {{
-                            localText(
-                              "微信环境使用公众号",
-                              "Use MP inside WeChat",
-                            )
-                          }}
+                          {{ t("admin.settings.wechatConnect.mpModeLabel") }}
                         </div>
                         <p
                           class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
                         >
-                          {{
-                            localText(
-                              "浏览器在微信内时，自动走公众号授权。",
-                              "Use Official Account authorization inside the WeChat browser.",
-                            )
-                          }}
+                          {{ t("admin.settings.wechatConnect.mpModeHint") }}
                         </p>
                       </div>
                       <Toggle
@@ -1536,19 +1492,14 @@
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
-                      {{ localText("回调地址", "Redirect URL") }}
+                      {{ t("admin.settings.wechatConnect.redirectUrlLabel") }}
                     </label>
                     <input
                       data-testid="wechat-connect-redirect-url"
                       v-model="form.wechat_connect_redirect_url"
                       type="url"
                       class="input font-mono text-sm"
-                      :placeholder="
-                        localText(
-                          'https://your-site.com/api/v1/auth/oauth/wechat/callback',
-                          'https://your-site.com/api/v1/auth/oauth/wechat/callback',
-                        )
-                      "
+                      :placeholder="t('admin.settings.wechatConnect.redirectUrlPlaceholder')"
                     />
                     <div
                       class="mt-2 flex flex-col gap-2 sm:flex-row sm:items-center sm:gap-3"
@@ -1558,12 +1509,7 @@
                         class="btn btn-secondary btn-sm w-fit"
                         @click="setAndCopyWeChatRedirectUrl"
                       >
-                        {{
-                          localText(
-                            "使用当前站点生成并复制",
-                            "Generate & Copy (current site)",
-                          )
-                        }}
+                        {{ t("admin.settings.wechatConnect.generateAndCopy") }}
                       </button>
                       <code
                         v-if="wechatRedirectUrlSuggestion"
@@ -1579,27 +1525,17 @@
                   <label
                     class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                   >
-                    {{ localText("前端回调地址", "Frontend redirect URL") }}
+                    {{ t("admin.settings.wechatConnect.frontendRedirectUrlLabel") }}
                   </label>
                   <input
                     data-testid="wechat-connect-frontend-redirect-url"
                     v-model="form.wechat_connect_frontend_redirect_url"
                     type="text"
                     class="input font-mono text-sm"
-                    :placeholder="
-                      localText(
-                        '/auth/wechat/callback',
-                        '/auth/wechat/callback',
-                      )
-                    "
+                    :placeholder="t('admin.settings.wechatConnect.frontendRedirectUrlPlaceholder')"
                   />
                   <p class="mt-1.5 text-xs text-gray-500 dark:text-gray-400">
-                    {{
-                      localText(
-                        "通常用于前端路由回调地址，需与后端配置保持一致。",
-                        "Usually the frontend route callback path; keep it aligned with the backend.",
-                      )
-                    }}
+                    {{ t("admin.settings.wechatConnect.frontendRedirectUrlHint") }}
                   </p>
                 </div>
               </div>
@@ -2215,15 +2151,10 @@
               class="border-b border-gray-100 px-6 py-4 dark:border-dark-700"
             >
               <h2 class="text-lg font-semibold text-gray-900 dark:text-white">
-                {{ localText("认证来源默认值", "Auth Source Defaults") }}
+                {{ t("admin.settings.authSourceDefaults.title") }}
               </h2>
               <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
-                {{
-                  localText(
-                    "按注册来源配置新用户默认余额、并发、订阅与授权策略。",
-                    "Configure per-source default balance, concurrency, subscriptions, and grant rules.",
-                  )
-                }}
+                {{ t("admin.settings.authSourceDefaults.description") }}
               </p>
             </div>
             <div class="space-y-6 p-6">
@@ -2232,20 +2163,10 @@
               >
                 <div>
                   <label class="font-medium text-gray-900 dark:text-white">
-                    {{
-                      localText(
-                        "第三方注册强制补充邮箱",
-                        "Require email on third-party signup",
-                      )
-                    }}
+                    {{ t("admin.settings.authSourceDefaults.requireEmailLabel") }}
                   </label>
                   <p class="text-sm text-gray-500 dark:text-gray-400">
-                    {{
-                      localText(
-                        "启用后，Linux DO、OIDC、微信注册缺少邮箱时必须先补充邮箱地址。",
-                        "When enabled, Linux DO, OIDC, and WeChat signups must provide an email before account creation.",
-                      )
-                    }}
+                    {{ t("admin.settings.authSourceDefaults.requireEmailHint") }}
                   </p>
                 </div>
                 <Toggle v-model="form.force_email_on_third_party_signup" />
@@ -2280,12 +2201,7 @@
                     class="mt-4 space-y-4 border-t border-gray-100 pt-4 dark:border-dark-700"
                   >
                     <p class="text-sm text-gray-500 dark:text-gray-400">
-                      {{
-                        localText(
-                          "以下默认值会在该来源注册新用户时发放；首次绑定时授权仅作用于已有账号绑定该来源。",
-                          "These defaults apply when a new user registers through this source. Grant on first bind only applies when an existing user binds this source.",
-                        )
-                      }}
+                      {{ t("admin.settings.authSourceDefaults.enabledHint") }}
                     </p>
 
                     <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
@@ -2331,19 +2247,12 @@
                         <label
                           class="font-medium text-gray-900 dark:text-white"
                         >
-                          {{
-                            localText("首次绑定时授权", "Grant on first bind")
-                          }}
+                          {{ t("admin.settings.authSourceDefaults.grantOnFirstBindLabel") }}
                         </label>
                         <p
                           class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
                         >
-                          {{
-                            localText(
-                              "已有账号首次绑定该来源时发放默认权益。",
-                              "Grant default entitlements when an existing user first binds this source.",
-                            )
-                          }}
+                          {{ t("admin.settings.authSourceDefaults.grantOnFirstBindHint") }}
                         </p>
                       </div>
                       <Toggle
@@ -2359,15 +2268,10 @@
                         <label
                           class="font-medium text-gray-900 dark:text-white"
                         >
-                          {{ localText("默认订阅", "Default subscriptions") }}
+                          {{ t("admin.settings.authSourceDefaults.defaultSubscriptionsLabel") }}
                         </label>
                         <p class="text-sm text-gray-500 dark:text-gray-400">
-                          {{
-                            localText(
-                              "仅对当前认证来源生效，未配置时不追加来源专属订阅。",
-                              "Applies only to this auth source. Leave empty to skip source-specific subscriptions.",
-                            )
-                          }}
+                          {{ t("admin.settings.authSourceDefaults.defaultSubscriptionsHint") }}
                         </p>
                       </div>
                       <button
@@ -2391,12 +2295,7 @@
                       "
                       class="rounded border border-dashed border-gray-300 px-4 py-3 text-sm text-gray-500 dark:border-dark-600 dark:text-gray-400"
                     >
-                      {{
-                        localText(
-                          "当前来源未配置专属默认订阅。",
-                          "No source-specific default subscriptions configured.",
-                        )
-                      }}
+                      {{ t("admin.settings.authSourceDefaults.noSourceSubscriptions") }}
                     </div>
 
                     <div v-else class="space-y-3">
@@ -2621,18 +2520,12 @@
                       class="text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
                       {{
-                        localText(
-                          "OpenAI 实验调度策略",
-                          "OpenAI experimental scheduler policy",
-                        )
+                        t("admin.settings.openaiExperimentalScheduler.title")
                       }}
                     </label>
                     <p class="mt-0.5 text-xs text-gray-500 dark:text-gray-400">
                       {{
-                        localText(
-                          "默认关闭。开启后仅影响本网关在 OpenAI 账号间的实验性调度选择逻辑，不代表上游 OpenAI 官方能力。",
-                          "Disabled by default. When enabled, this only changes the gateway's experimental account-selection policy for OpenAI traffic; it does not indicate an upstream OpenAI capability.",
-                        )
+                        t("admin.settings.openaiExperimentalScheduler.description")
                       }}
                     </p>
                   </div>
@@ -4131,20 +4024,16 @@
                           class="font-medium text-gray-900 dark:text-white"
                         >
                           {{
-                            localText(
-                              `${visibleMethod.title} 可见方式`,
-                              `${visibleMethod.title} visible method`,
-                            )
+                            t("admin.settings.paymentVisibleMethods.methodLabel", {
+                              title: visibleMethod.title,
+                            })
                           }}
                         </label>
                         <p
                           class="mt-1 text-sm text-gray-500 dark:text-gray-400"
                         >
                           {{
-                            localText(
-                              "控制前台结算页是否展示该方式，以及展示时使用的来源键。",
-                              "Controls whether checkout shows this method and which source key it exposes.",
-                            )
+                            t("admin.settings.paymentVisibleMethods.methodHint")
                           }}
                         </p>
                       </div>
@@ -4163,7 +4052,7 @@
 
                     <div class="mt-4">
                       <label class="input-label">
-                        {{ localText("支付来源", "Payment source") }}
+                        {{ t("admin.settings.paymentVisibleMethods.sourceLabel") }}
                       </label>
                       <Select
                         :model-value="
@@ -4184,10 +4073,7 @@
                       />
                       <p class="mt-1.5 text-xs text-gray-400">
                         {{
-                          localText(
-                            "启用后必须明确选择一个来源；未配置状态不会对外展示该支付方式。",
-                            "Choose an explicit source before enabling the method. Not configured methods are not exposed.",
-                          )
+                          t("admin.settings.paymentVisibleMethods.sourceHint")
                         }}
                       </p>
                     </div>
@@ -5028,35 +4914,23 @@ const authSourceDefaults = reactive<AuthSourceDefaultsState>(
 const authSourceDefaultsMeta = computed(() => [
   {
     source: "email" as AuthSourceType,
-    title: localText("邮箱注册", "Email signup"),
-    description: localText(
-      "适用于邮箱密码注册的新用户默认配额。",
-      "Default quota grants for email-password signups.",
-    ),
+    title: t("admin.settings.authSourceDefaults.sources.email.title"),
+    description: t("admin.settings.authSourceDefaults.sources.email.description"),
   },
   {
     source: "linuxdo" as AuthSourceType,
-    title: localText("Linux DO 登录", "Linux DO signup"),
-    description: localText(
-      "适用于 Linux DO 第三方注册的新用户默认配额。",
-      "Default quota grants for Linux DO signups.",
-    ),
+    title: t("admin.settings.authSourceDefaults.sources.linuxdo.title"),
+    description: t("admin.settings.authSourceDefaults.sources.linuxdo.description"),
   },
   {
     source: "oidc" as AuthSourceType,
-    title: localText("OIDC 登录", "OIDC signup"),
-    description: localText(
-      "适用于 OIDC 第三方注册的新用户默认配额。",
-      "Default quota grants for OIDC signups.",
-    ),
+    title: t("admin.settings.authSourceDefaults.sources.oidc.title"),
+    description: t("admin.settings.authSourceDefaults.sources.oidc.description"),
   },
   {
     source: "wechat" as AuthSourceType,
-    title: localText("微信登录", "WeChat signup"),
-    description: localText(
-      "适用于微信第三方注册的新用户默认配额。",
-      "Default quota grants for WeChat signups.",
-    ),
+    title: t("admin.settings.authSourceDefaults.sources.wechat.title"),
+    description: t("admin.settings.authSourceDefaults.sources.wechat.description"),
   },
 ]);
 
@@ -5130,10 +5004,9 @@ function validatePaymentVisibleMethodSelections(): boolean {
     }
 
     appStore.showError(
-      localText(
-        `${visibleMethod.title} 已启用，请先选择支付来源`,
-        `Select a payment source before enabling ${visibleMethod.title}`,
-      ),
+      t("admin.settings.paymentVisibleMethods.sourceRequiredError", {
+        title: visibleMethod.title,
+      }),
     );
     return false;
   }
@@ -5479,10 +5352,7 @@ async function setAndCopyWeChatRedirectUrl() {
   form.wechat_connect_redirect_url = url;
   await copyToClipboard(
     url,
-    localText(
-      "已使用当前站点生成回调地址并复制到剪贴板",
-      "Redirect URL generated and copied to clipboard",
-    ),
+    t("admin.settings.wechatConnect.redirectUrlSetAndCopied"),
   );
 }
 
diff --git a/frontend/src/views/admin/UsersView.vue b/frontend/src/views/admin/UsersView.vue
index 39c9b377..ea67f695 100644
--- a/frontend/src/views/admin/UsersView.vue
+++ b/frontend/src/views/admin/UsersView.vue
@@ -700,7 +700,7 @@ const getAttributeValue = (userId: number, attrId: number): string => {
 // All possible columns (for column settings)
 const allColumns = computed<Column[]>(() => [
   { key: 'email', label: t('admin.users.columns.user'), sortable: true },
-  { key: 'id', label: 'ID', sortable: true },
+  { key: 'id', label: t('admin.users.columns.id'), sortable: true },
   { key: 'username', label: t('admin.users.columns.username'), sortable: true },
   { key: 'notes', label: t('admin.users.columns.notes'), sortable: false },
   // Dynamic attribute columns
diff --git a/frontend/src/views/admin/__tests__/SettingsView.spec.ts b/frontend/src/views/admin/__tests__/SettingsView.spec.ts
index 16a36d61..ee998971 100644
--- a/frontend/src/views/admin/__tests__/SettingsView.spec.ts
+++ b/frontend/src/views/admin/__tests__/SettingsView.spec.ts
@@ -93,10 +93,61 @@ vi.mock("@/utils/apiError", () => ({
 
 vi.mock("vue-i18n", async () => {
   const actual = await vi.importActual<typeof import("vue-i18n")>("vue-i18n");
+  const translations: Record<string, string> = {
+    "admin.settings.wechatConnect.title": "微信登录",
+    "admin.settings.wechatConnect.description": "用于微信开放平台或公众号/小程序的第三方登录配置。",
+    "admin.settings.wechatConnect.enabledLabel": "启用微信登录",
+    "admin.settings.wechatConnect.enabledHint": "开启后可使用微信第三方登录回调与授权配置。",
+    "admin.settings.wechatConnect.appIdLabel": "AppID",
+    "admin.settings.wechatConnect.appIdPlaceholder": "微信开放平台 AppID",
+    "admin.settings.wechatConnect.appSecretLabel": "AppSecret",
+    "admin.settings.wechatConnect.appSecretConfiguredPlaceholder": "密钥已配置，留空以保留当前值。",
+    "admin.settings.wechatConnect.appSecretPlaceholder": "微信开放平台 AppSecret",
+    "admin.settings.wechatConnect.appSecretConfiguredHint": "密钥已配置，留空以保留当前值。",
+    "admin.settings.wechatConnect.appSecretHint": "填写后会覆盖当前微信密钥。",
+    "admin.settings.wechatConnect.modeLabel": "模式",
+    "admin.settings.wechatConnect.openModeLabel": "非微信环境使用开放平台",
+    "admin.settings.wechatConnect.openModeHint": "浏览器不在微信内时，自动走开放平台扫码授权。",
+    "admin.settings.wechatConnect.mpModeLabel": "微信环境使用公众号",
+    "admin.settings.wechatConnect.mpModeHint": "浏览器在微信内时，自动走公众号授权。",
+    "admin.settings.wechatConnect.redirectUrlLabel": "回调地址",
+    "admin.settings.wechatConnect.redirectUrlPlaceholder": "https://your-site.com/api/v1/auth/oauth/wechat/callback",
+    "admin.settings.wechatConnect.generateAndCopy": "使用当前站点生成并复制",
+    "admin.settings.wechatConnect.redirectUrlSetAndCopied": "已使用当前站点生成回调地址并复制到剪贴板",
+    "admin.settings.wechatConnect.frontendRedirectUrlLabel": "前端回调地址",
+    "admin.settings.wechatConnect.frontendRedirectUrlPlaceholder": "/auth/wechat/callback",
+    "admin.settings.wechatConnect.frontendRedirectUrlHint": "通常用于前端路由回调地址，需与后端配置保持一致。",
+    "admin.settings.authSourceDefaults.title": "认证来源默认值",
+    "admin.settings.authSourceDefaults.description": "按注册来源配置新用户默认余额、并发、订阅与授权策略。",
+    "admin.settings.authSourceDefaults.requireEmailLabel": "第三方注册强制补充邮箱",
+    "admin.settings.authSourceDefaults.requireEmailHint": "启用后，Linux DO、OIDC、微信注册缺少邮箱时必须先补充邮箱地址。",
+    "admin.settings.authSourceDefaults.enabledHint": "以下默认值会在该来源注册新用户时发放；首次绑定时授权仅作用于已有账号绑定该来源。",
+    "admin.settings.authSourceDefaults.sources.email.title": "邮箱注册",
+    "admin.settings.authSourceDefaults.sources.email.description": "适用于邮箱密码注册的新用户默认配额。",
+    "admin.settings.authSourceDefaults.sources.linuxdo.title": "Linux DO 登录",
+    "admin.settings.authSourceDefaults.sources.linuxdo.description": "适用于 Linux DO 第三方注册的新用户默认配额。",
+    "admin.settings.authSourceDefaults.sources.oidc.title": "OIDC 登录",
+    "admin.settings.authSourceDefaults.sources.oidc.description": "适用于 OIDC 第三方注册的新用户默认配额。",
+    "admin.settings.authSourceDefaults.sources.wechat.title": "微信登录",
+    "admin.settings.authSourceDefaults.sources.wechat.description": "适用于微信第三方注册的新用户默认配额。",
+    "admin.settings.authSourceDefaults.grantOnFirstBindLabel": "首次绑定时授权",
+    "admin.settings.authSourceDefaults.grantOnFirstBindHint": "已有账号首次绑定该来源时发放默认权益。",
+    "admin.settings.authSourceDefaults.defaultSubscriptionsLabel": "默认订阅",
+    "admin.settings.authSourceDefaults.defaultSubscriptionsHint": "仅对当前认证来源生效，未配置时不追加来源专属订阅。",
+    "admin.settings.authSourceDefaults.noSourceSubscriptions": "当前来源未配置专属默认订阅。",
+    "admin.settings.paymentVisibleMethods.methodLabel": "{title} 可见方式",
+    "admin.settings.paymentVisibleMethods.methodHint": "控制前台结算页是否展示该方式，以及展示时使用的来源键。",
+    "admin.settings.paymentVisibleMethods.sourceLabel": "支付来源",
+    "admin.settings.paymentVisibleMethods.sourceHint": "启用后必须明确选择一个来源；未配置状态不会对外展示该支付方式。",
+    "admin.settings.paymentVisibleMethods.sourceRequiredError": "{title} 已启用，请先选择支付来源。",
+    "admin.settings.openaiExperimentalScheduler.title": "OpenAI 实验调度策略",
+    "admin.settings.openaiExperimentalScheduler.description": "默认关闭。开启后仅影响本网关在 OpenAI 账号间的实验性调度选择逻辑，不代表上游 OpenAI 官方能力。",
+  };
   return {
     ...actual,
     useI18n: () => ({
-      t: (key: string) => key,
+      t: (key: string, params?: Record<string, string>) =>
+        (translations[key] ?? key).replace(/\{(\w+)\}/g, (_, token) => params?.[token] ?? `{${token}}`),
       locale: ref("zh-CN"),
     }),
   };