diff --git a/desktop/src/__tests__/generalSettings.test.tsx b/desktop/src/__tests__/generalSettings.test.tsx
index 1a1df9dd..b7c98afc 100644
--- a/desktop/src/__tests__/generalSettings.test.tsx
+++ b/desktop/src/__tests__/generalSettings.test.tsx
@@ -1651,6 +1651,34 @@ describe('Settings > Providers tab', () => {
     expect(within(dialog).getByText('Requests will be translated via the local proxy')).toBeInTheDocument()
   })
 
+  it('localizes the main model placeholder in the provider form', () => {
+    useSettingsStore.setState({ locale: 'zh' })
+    providerStoreState.presets = [
+      {
+        id: 'custom',
+        name: 'Custom',
+        baseUrl: 'https://api.example.com/anthropic',
+        apiFormat: 'anthropic',
+        defaultModels: {
+          main: '',
+          haiku: '',
+          sonnet: '',
+          opus: '',
+        },
+        needsApiKey: true,
+        websiteUrl: '',
+      },
+    ]
+
+    render(<Settings />)
+
+    fireEvent.click(screen.getByRole('button', { name: /添加服务商/i }))
+
+    const dialog = screen.getByRole('dialog')
+    expect(within(dialog).getByPlaceholderText('模型 ID')).toBeInTheDocument()
+    expect(within(dialog).queryByPlaceholderText('Model ID')).not.toBeInTheDocument()
+  })
+
   it('normalizes blank model mappings to the main model when saving a provider', async () => {
     providerStoreState.createProvider = vi.fn().mockResolvedValue({
       id: 'provider-new',
diff --git a/desktop/src/i18n/locales/en.ts b/desktop/src/i18n/locales/en.ts
index 747bb0bd..ee0b4e3f 100644
--- a/desktop/src/i18n/locales/en.ts
+++ b/desktop/src/i18n/locales/en.ts
@@ -416,6 +416,7 @@ export const en = {
   'settings.providers.sonnetModel': 'Sonnet Model',
   'settings.providers.opusModel': 'Opus Model',
   'settings.providers.model1mSupportShort': '1M',
+  'settings.providers.modelIdPlaceholder': 'Model ID',
   'settings.providers.sameAsMain': 'Same as main',
   'settings.providers.contextSettingsTitle': 'Context and auto-compact',
   'settings.providers.contextSettingsDesc': 'Preset limits are applied automatically. Edit only when the provider changes limits or you use a custom model ID.',
@@ -969,6 +970,12 @@ export const en = {
   'settings.general.responseLangDefault': 'Default (English)',
   'settings.general.outputStyleTitle': 'Output Style',
   'settings.general.outputStyleDescription': 'Choose how Claude communicates in new or restarted sessions.',
+  'settings.general.outputStyleBuiltin.default.label': 'Default',
+  'settings.general.outputStyleBuiltin.default.description': 'Claude completes coding tasks efficiently and provides concise responses',
+  'settings.general.outputStyleBuiltin.explanatory.label': 'Explanatory',
+  'settings.general.outputStyleBuiltin.explanatory.description': 'Claude explains its implementation choices and codebase patterns',
+  'settings.general.outputStyleBuiltin.learning.label': 'Learning',
+  'settings.general.outputStyleBuiltin.learning.description': 'Claude pauses and asks you to write small pieces of code for hands-on practice',
   'settings.general.outputStyleSelectLabel': 'Select output style',
   'settings.general.outputStyleLoading': 'Loading output styles...',
   'settings.general.outputStyleSaved': 'Output style saved.',
diff --git a/desktop/src/i18n/locales/jp.ts b/desktop/src/i18n/locales/jp.ts
index 40524ada..5c2f0c36 100644
--- a/desktop/src/i18n/locales/jp.ts
+++ b/desktop/src/i18n/locales/jp.ts
@@ -418,6 +418,7 @@ export const jp: Record<TranslationKey, string> = {
   'settings.providers.sonnetModel': 'Sonnet モデル',
   'settings.providers.opusModel': 'Opus モデル',
   'settings.providers.model1mSupportShort': '1M',
+  'settings.providers.modelIdPlaceholder': 'モデル ID',
   'settings.providers.sameAsMain': 'メインと同じ',
   'settings.providers.contextSettingsTitle': 'コンテキストと自動コンパクト',
   'settings.providers.contextSettingsDesc': 'プリセットの上限は自動的に適用されます。プロバイダーが上限を変更した場合やカスタムモデル ID を使用する場合のみ編集してください。',
@@ -971,6 +972,12 @@ export const jp: Record<TranslationKey, string> = {
   'settings.general.responseLangDefault': 'デフォルト（英語）',
   'settings.general.outputStyleTitle': '出力スタイル',
   'settings.general.outputStyleDescription': '新しいセッションまたは再起動後のセッションで Claude がどのように応答するかを選択します。',
+  'settings.general.outputStyleBuiltin.default.label': 'デフォルト',
+  'settings.general.outputStyleBuiltin.default.description': 'Claude はコーディングタスクを効率よく完了し、簡潔に応答します',
+  'settings.general.outputStyleBuiltin.explanatory.label': '解説型',
+  'settings.general.outputStyleBuiltin.explanatory.description': 'Claude は実装上の判断とコードベースのパターンを説明します',
+  'settings.general.outputStyleBuiltin.learning.label': '学習型',
+  'settings.general.outputStyleBuiltin.learning.description': 'Claude は一時停止し、実践練習として短いコードの記述を依頼します',
   'settings.general.outputStyleSelectLabel': '出力スタイルを選択',
   'settings.general.outputStyleLoading': '出力スタイルを読み込み中...',
   'settings.general.outputStyleSaved': '出力スタイルを保存しました。',
diff --git a/desktop/src/i18n/locales/kr.ts b/desktop/src/i18n/locales/kr.ts
index 2ea02d90..ac1f5411 100644
--- a/desktop/src/i18n/locales/kr.ts
+++ b/desktop/src/i18n/locales/kr.ts
@@ -418,6 +418,7 @@ export const kr: Record<TranslationKey, string> = {
   'settings.providers.sonnetModel': 'Sonnet 모델',
   'settings.providers.opusModel': 'Opus 모델',
   'settings.providers.model1mSupportShort': '1M',
+  'settings.providers.modelIdPlaceholder': '모델 ID',
   'settings.providers.sameAsMain': '메인과 동일',
   'settings.providers.contextSettingsTitle': '컨텍스트 및 자동 압축',
   'settings.providers.contextSettingsDesc': '사전 설정 한도가 자동으로 적용됩니다. 공급자가 한도를 변경하거나 사용자 지정 모델 ID를 사용할 때만 편집하세요.',
@@ -971,6 +972,12 @@ export const kr: Record<TranslationKey, string> = {
   'settings.general.responseLangDefault': '기본값(영어)',
   'settings.general.outputStyleTitle': '출력 스타일',
   'settings.general.outputStyleDescription': '새 세션 또는 다시 시작한 세션에서 Claude가 응답하는 방식을 선택합니다.',
+  'settings.general.outputStyleBuiltin.default.label': '기본값',
+  'settings.general.outputStyleBuiltin.default.description': 'Claude가 코딩 작업을 효율적으로 완료하고 간결하게 응답합니다',
+  'settings.general.outputStyleBuiltin.explanatory.label': '설명형',
+  'settings.general.outputStyleBuiltin.explanatory.description': 'Claude가 구현 선택과 코드베이스 패턴을 설명합니다',
+  'settings.general.outputStyleBuiltin.learning.label': '학습형',
+  'settings.general.outputStyleBuiltin.learning.description': 'Claude가 잠시 멈추고 실습을 위해 짧은 코드를 작성하도록 요청합니다',
   'settings.general.outputStyleSelectLabel': '출력 스타일 선택',
   'settings.general.outputStyleLoading': '출력 스타일 불러오는 중...',
   'settings.general.outputStyleSaved': '출력 스타일이 저장되었습니다.',
diff --git a/desktop/src/i18n/locales/zh-TW.ts b/desktop/src/i18n/locales/zh-TW.ts
index 2503af48..9332b9d9 100644
--- a/desktop/src/i18n/locales/zh-TW.ts
+++ b/desktop/src/i18n/locales/zh-TW.ts
@@ -418,6 +418,7 @@ export const zh: Record<TranslationKey, string> = {
   'settings.providers.sonnetModel': 'Sonnet 模型',
   'settings.providers.opusModel': 'Opus 模型',
   'settings.providers.model1mSupportShort': '1M',
+  'settings.providers.modelIdPlaceholder': '模型 ID',
   'settings.providers.sameAsMain': '與主模型相同',
   'settings.providers.contextSettingsTitle': '上下文與自動壓縮',
   'settings.providers.contextSettingsDesc': '預設會自動應用模型視窗。只有服務商調整限制，或使用自定義模型 ID 時才需要修改。',
@@ -971,6 +972,12 @@ export const zh: Record<TranslationKey, string> = {
   'settings.general.responseLangDefault': '預設（英語）',
   'settings.general.outputStyleTitle': '輸出風格',
   'settings.general.outputStyleDescription': '選擇 Claude 在新會話或重啟後的會話中如何表達。',
+  'settings.general.outputStyleBuiltin.default.label': '預設',
+  'settings.general.outputStyleBuiltin.default.description': 'Claude 會高效完成編碼任務，並提供簡潔回覆',
+  'settings.general.outputStyleBuiltin.explanatory.label': '解釋型',
+  'settings.general.outputStyleBuiltin.explanatory.description': 'Claude 會解釋實作選擇和程式碼庫模式',
+  'settings.general.outputStyleBuiltin.learning.label': '學習型',
+  'settings.general.outputStyleBuiltin.learning.description': 'Claude 會暫停並請你編寫小段程式碼進行實戰練習',
   'settings.general.outputStyleSelectLabel': '選擇輸出風格',
   'settings.general.outputStyleLoading': '正在載入輸出風格...',
   'settings.general.outputStyleSaved': '輸出風格已儲存。',
diff --git a/desktop/src/i18n/locales/zh.ts b/desktop/src/i18n/locales/zh.ts
index 1b5b096a..13bd6d07 100644
--- a/desktop/src/i18n/locales/zh.ts
+++ b/desktop/src/i18n/locales/zh.ts
@@ -418,6 +418,7 @@ export const zh: Record<TranslationKey, string> = {
   'settings.providers.sonnetModel': 'Sonnet 模型',
   'settings.providers.opusModel': 'Opus 模型',
   'settings.providers.model1mSupportShort': '1M',
+  'settings.providers.modelIdPlaceholder': '模型 ID',
   'settings.providers.sameAsMain': '与主模型相同',
   'settings.providers.contextSettingsTitle': '上下文与自动压缩',
   'settings.providers.contextSettingsDesc': '预设会自动应用模型窗口。只有服务商调整限制，或使用自定义模型 ID 时才需要修改。',
@@ -971,6 +972,12 @@ export const zh: Record<TranslationKey, string> = {
   'settings.general.responseLangDefault': '默认（英语）',
   'settings.general.outputStyleTitle': '输出风格',
   'settings.general.outputStyleDescription': '选择 Claude 在新会话或重启后的会话中如何表达。',
+  'settings.general.outputStyleBuiltin.default.label': '默认',
+  'settings.general.outputStyleBuiltin.default.description': 'Claude 会高效完成编码任务，并提供简洁回复',
+  'settings.general.outputStyleBuiltin.explanatory.label': '解释型',
+  'settings.general.outputStyleBuiltin.explanatory.description': 'Claude 会解释实现选择和代码库模式',
+  'settings.general.outputStyleBuiltin.learning.label': '学习型',
+  'settings.general.outputStyleBuiltin.learning.description': 'Claude 会暂停并请你编写小段代码进行实战练习',
   'settings.general.outputStyleSelectLabel': '选择输出风格',
   'settings.general.outputStyleLoading': '正在加载输出风格...',
   'settings.general.outputStyleSaved': '输出风格已保存。',
diff --git a/desktop/src/pages/Settings.tsx b/desktop/src/pages/Settings.tsx
index cd1660a7..1b2cea19 100644
--- a/desktop/src/pages/Settings.tsx
+++ b/desktop/src/pages/Settings.tsx
@@ -83,6 +83,20 @@ const NETWORK_TIMEOUT_MIN_SECONDS = 30
 const NETWORK_TIMEOUT_MAX_SECONDS = 1800
 const NETWORK_TIMEOUT_STEP_SECONDS = 30
 const SETTINGS_CHECKBOX_INPUT_CLASS = 'settings-checkbox-input peer'
+const BUILT_IN_OUTPUT_STYLE_TRANSLATION_KEYS = {
+  default: {
+    label: 'settings.general.outputStyleBuiltin.default.label',
+    description: 'settings.general.outputStyleBuiltin.default.description',
+  },
+  Explanatory: {
+    label: 'settings.general.outputStyleBuiltin.explanatory.label',
+    description: 'settings.general.outputStyleBuiltin.explanatory.description',
+  },
+  Learning: {
+    label: 'settings.general.outputStyleBuiltin.learning.label',
+    description: 'settings.general.outputStyleBuiltin.learning.description',
+  },
+} satisfies Record<string, { label: TranslationKey; description: TranslationKey }>
 
 function buildH5LaunchUrl(baseUrl: string | null, token: string | null): string | null {
   if (!baseUrl) return null
@@ -1763,7 +1777,7 @@ function ProviderFormModal({ open, onClose, mode, provider, presets }: ProviderF
                     required={slot === 'main'}
                     value={models[slot]}
                     onChange={(e) => handleModelChange(slot, e.target.value)}
-                    placeholder={slot === 'main' ? 'Model ID' : t('settings.providers.sameAsMain')}
+                    placeholder={slot === 'main' ? t('settings.providers.modelIdPlaceholder') : t('settings.providers.sameAsMain')}
                   />
                   <label className="mt-1 inline-flex h-6 w-fit cursor-pointer items-center gap-1.5 rounded-[var(--radius-sm)] px-1 text-xs text-[var(--color-text-secondary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)]">
                     <input
@@ -2156,11 +2170,17 @@ export function GeneralSettings() {
     RESPONSE_LANGUAGES.find(({ value }) => value === responseLanguage)?.label ?? RESPONSE_LANGUAGES[0]!.label
   const outputStyleItems = outputStyles.map((style) => ({
     value: style.value,
-    label: style.label,
-    description: `${style.description} · ${getOutputStyleSourceLabel(style.source, t)}`,
+    label: getOutputStyleLabel(style, t),
+    description: `${getOutputStyleDescription(style, t)} · ${getOutputStyleSourceLabel(style.source, t)}`,
   }))
   const selectedOutputStyle =
     outputStyles.find((style) => style.value === outputStyle) ?? outputStyles[0]
+  const selectedOutputStyleLabel = selectedOutputStyle
+    ? getOutputStyleLabel(selectedOutputStyle, t)
+    : outputStyle
+  const selectedOutputStyleDescription = selectedOutputStyle
+    ? getOutputStyleDescription(selectedOutputStyle, t)
+    : ''
   const outputStyleScopeLabel = outputStyleScope === 'localSettings'
     ? t('settings.general.outputStyleScopeLocal')
     : t('settings.general.outputStyleScopeUser')
@@ -2633,11 +2653,11 @@ export function GeneralSettings() {
                 <span className="block truncate font-medium">
                   {outputStylesLoading
                     ? t('settings.general.outputStyleLoading')
-                    : selectedOutputStyle?.label ?? outputStyle}
+                    : selectedOutputStyleLabel}
                 </span>
-                {selectedOutputStyle?.description && (
+                {selectedOutputStyleDescription && (
                   <span className="mt-0.5 block truncate text-xs text-[var(--color-text-tertiary)]">
-                    {selectedOutputStyle.description}
+                    {selectedOutputStyleDescription}
                   </span>
                 )}
               </span>
@@ -3280,6 +3300,40 @@ export function GeneralSettings() {
   )
 }
 
+function getBuiltInOutputStyleTranslationKeys(style: {
+  value: string
+  source: OutputStyleSource
+}) {
+  if (style.source !== 'built-in') return null
+  return BUILT_IN_OUTPUT_STYLE_TRANSLATION_KEYS[
+    style.value as keyof typeof BUILT_IN_OUTPUT_STYLE_TRANSLATION_KEYS
+  ] ?? null
+}
+
+function getOutputStyleLabel(
+  style: {
+    value: string
+    label: string
+    source: OutputStyleSource
+  },
+  t: (key: TranslationKey) => string,
+) {
+  const keys = getBuiltInOutputStyleTranslationKeys(style)
+  return keys ? t(keys.label) : style.label
+}
+
+function getOutputStyleDescription(
+  style: {
+    value: string
+    description: string
+    source: OutputStyleSource
+  },
+  t: (key: TranslationKey) => string,
+) {
+  const keys = getBuiltInOutputStyleTranslationKeys(style)
+  return keys ? t(keys.description) : style.description
+}
+
 function getOutputStyleSourceLabel(
   source: OutputStyleSource,
   t: (key: TranslationKey) => string,
diff --git a/desktop/src/pages/SettingsOutputStyle.test.tsx b/desktop/src/pages/SettingsOutputStyle.test.tsx
index 14dc6c94..452ca3fc 100644
--- a/desktop/src/pages/SettingsOutputStyle.test.tsx
+++ b/desktop/src/pages/SettingsOutputStyle.test.tsx
@@ -125,4 +125,43 @@ describe('GeneralSettings output style', () => {
     })
     expect(useSettingsStore.getState().outputStyle).toBe('Learning')
   })
+
+  it('localizes built-in output style descriptions in Chinese', async () => {
+    useSettingsStore.setState({ locale: 'zh' })
+    settingsApiMock.getOutputStyles.mockResolvedValueOnce({
+      outputStyle: 'default',
+      scope: 'localSettings',
+      workDir: '/repo',
+      styles: [
+        {
+          value: 'default',
+          label: 'Default',
+          description: 'Claude completes coding tasks efficiently and provides concise responses',
+          source: 'built-in',
+        },
+        {
+          value: 'Learning',
+          label: 'Learning',
+          description: 'Claude pauses and asks you to write small pieces of code for hands-on practice',
+          source: 'built-in',
+        },
+        {
+          value: 'Project Style',
+          label: 'Project Style',
+          description: 'Project custom voice',
+          source: 'projectSettings',
+        },
+      ],
+    })
+
+    render(<GeneralSettings />)
+
+    expect(await screen.findByText('Claude 会高效完成编码任务，并提供简洁回复')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByRole('button', { name: '选择输出风格' }))
+
+    expect(screen.getByText('Claude 会暂停并请你编写小段代码进行实战练习 · 内置')).toBeInTheDocument()
+    expect(screen.getByText('Project custom voice · 项目风格')).toBeInTheDocument()
+    expect(screen.queryByText(/Claude completes coding tasks efficiently/)).not.toBeInTheDocument()
+  })
 })