diff --git a/openless-all/app/scripts/windows-ui-config.test.mjs b/openless-all/app/scripts/windows-ui-config.test.mjs
index 873afdbb..4d9ddb61 100644
--- a/openless-all/app/scripts/windows-ui-config.test.mjs
+++ b/openless-all/app/scripts/windows-ui-config.test.mjs
@@ -55,7 +55,7 @@ if (!/function WindowsResizeHandles\(\)/.test(windowChromeTsx)) {
 
 assertMatch(
   windowChromeTsx,
-  /const MAC_TITLEBAR_HEIGHT = 30;/,
+  /const MAC_TITLEBAR_HEIGHT = 28;/,
   'macOS titlebar spacer should stay visually compact around the native traffic lights',
 );
 assertMatch(
@@ -108,7 +108,7 @@ if (!/export function getCapsuleHostMetrics\(\s*os: OS,\s*translationActive: boo
   throw new Error('capsule layout should define explicit host metrics separate from the visible pill metrics');
 }
 
-if (!/if \(os === 'win'\)\s*\{[\s\S]*?width: 220,[\s\S]*?height: translationActive \? 118 : 84,[\s\S]*?bottomInset: 12,[\s\S]*?badgeGap: 8[\s\S]*?\}/.test(capsuleLayoutTs)) {
+if (!/if \(os === 'win'\)\s*\{[\s\S]*?const horizontalInset = 12;[\s\S]*?const pill = getCapsulePillMetrics\(os\);[\s\S]*?width: pill\.width \+ horizontalInset \* 2,[\s\S]*?height: translationActive \? 118 : 84,[\s\S]*?horizontalInset,[\s\S]*?bottomInset: 12,[\s\S]*?badgeGap: 8,[\s\S]*?boxSizing: 'border-box',[\s\S]*?\}/.test(capsuleLayoutTs)) {
   throw new Error('windows capsule host metrics should leave room for shadow and badge geometry');
 }
 
@@ -116,19 +116,23 @@ if (!/const hostMetrics = getCapsuleHostMetrics\(os,\s*translation\);/.test(caps
   throw new Error('capsule should derive host metrics from the shared layout contract');
 }
 
-if (!/justifyContent:\s*os === 'win' \? 'flex-end' : 'center'/.test(capsuleTsx)) {
-  throw new Error('windows capsule host should anchor the pill to the bottom instead of centering it inside the larger native host window');
+if (!/return\s*\(\s*<div\s*style=\{\{[\s\S]*?width:\s*'100%',[\s\S]*?height:\s*'100%',[\s\S]*?position:\s*'relative',[\s\S]*?display:\s*'flex',[\s\S]*?alignItems:\s*'center',[\s\S]*?justifyContent:\s*'center',[\s\S]*?paddingLeft:\s*hostMetrics\.horizontalInset,[\s\S]*?paddingRight:\s*hostMetrics\.horizontalInset,[\s\S]*?\}\}/.test(capsuleTsx)) {
+  throw new Error('capsule host should center the pill within the shared layout contract');
+}
+
+if (!/paddingLeft:\s*hostMetrics\.horizontalInset,/.test(capsuleTsx) || !/paddingRight:\s*hostMetrics\.horizontalInset,/.test(capsuleTsx)) {
+  throw new Error('windows capsule host should reserve shared horizontal inset room for shadow geometry');
 }
 
 if (!/paddingBottom:\s*os === 'win' \? hostMetrics\.bottomInset : 0/.test(capsuleTsx)) {
   throw new Error('windows capsule host should respect the shared bottom inset');
 }
 
-if (!/bottom:\s*`\$\{hostMetrics\.bottomInset \+ metrics\.height \+ hostMetrics\.badgeGap\}px`/.test(capsuleTsx)) {
+if (!/hostMetrics\.bottomInset \+ metrics\.height \+ hostMetrics\.badgeGap/.test(capsuleTsx)) {
   throw new Error('windows translation badge should anchor from the shared host inset instead of a fixed center-based offset');
 }
 
-if (!/#\[cfg\(target_os = "windows"\)\][\s\S]*?width: 220\.0[\s\S]*?height: if translation_active \{ 118\.0 \} else \{ 84\.0 \}[\s\S]*?bottom_inset: 12\.0,/.test(libRs)) {
+if (!/#\[cfg\(target_os = "windows"\)\][\s\S]*?const WINDOWS_CAPSULE_PILL_WIDTH: f64 = 196\.0;[\s\S]*?const WINDOWS_CAPSULE_SIDE_INSET: f64 = 12\.0;[\s\S]*?width: WINDOWS_CAPSULE_PILL_WIDTH \+ WINDOWS_CAPSULE_SIDE_INSET \* 2\.0,[\s\S]*?height: if translation_active \{ 118\.0 \} else \{ 84\.0 \},[\s\S]*?bottom_inset: 12\.0,/.test(libRs)) {
   throw new Error('windows runtime capsule bounds should leave room for the native shadow while keeping a fixed visual pill');
 }
 
diff --git a/openless-all/app/src-tauri/src/lib.rs b/openless-all/app/src-tauri/src/lib.rs
index 1fe64723..0a3256d7 100644
--- a/openless-all/app/src-tauri/src/lib.rs
+++ b/openless-all/app/src-tauri/src/lib.rs
@@ -752,8 +752,12 @@ struct CapsuleWindowBounds {
 fn capsule_window_bounds(translation_active: bool) -> CapsuleWindowBounds {
     #[cfg(target_os = "windows")]
     {
+        const WINDOWS_CAPSULE_PILL_WIDTH: f64 = 196.0;
+        const WINDOWS_CAPSULE_SIDE_INSET: f64 = 12.0;
         CapsuleWindowBounds {
-            width: 220.0,
+            // Keep the existing Windows hitbox width, but express it as
+            // pill width (196) + symmetric 12px side insets for shadow room.
+            width: WINDOWS_CAPSULE_PILL_WIDTH + WINDOWS_CAPSULE_SIDE_INSET * 2.0,
             height: if translation_active { 118.0 } else { 84.0 },
             bottom_inset: 12.0,
         }
diff --git a/openless-all/app/src/components/Capsule.tsx b/openless-all/app/src/components/Capsule.tsx
index 4c669598..6ee474a9 100644
--- a/openless-all/app/src/components/Capsule.tsx
+++ b/openless-all/app/src/components/Capsule.tsx
@@ -15,9 +15,14 @@ interface AudioBarsProps {
 
 function AudioBars({ level }: AudioBarsProps) {
   const envelope = [0.55, 0.85, 1.0, 0.85, 0.55];
-  const base = 4;
-  const max = 18;
+  const base = 2;
+  const max = 24;
   const voice = Math.min(1, Math.max(0, level));
+  const silenceGate = 0.012;
+  const responseCeiling = 0.34;
+  const gatedVoice = Math.min(1, Math.max(0, (voice - silenceGate) / (responseCeiling - silenceGate)));
+  const easedVoice = gatedVoice * gatedVoice * (3 - 2 * gatedVoice);
+  const visualVoice = Math.pow(easedVoice, 0.42);
   return (
     <div
       style={{
@@ -35,10 +40,11 @@ function AudioBars({ level }: AudioBarsProps) {
           style={{
             display: 'inline-block',
             width: 3,
-            height: base + (max - base) * voice * env,
+            height: base + (max - base) * visualVoice * env,
             borderRadius: 999,
             background: 'var(--ol-blue)',
             opacity: 0.82,
+            transformOrigin: 'center',
             transition: 'height 0.08s var(--ol-motion-quick)',
           }}
         />
@@ -110,6 +116,8 @@ interface CircleButtonProps {
 function CircleButton({ variant, enabled, onClick }: CircleButtonProps) {
   const { t } = useTranslation();
   const isCancel = variant === 'cancel';
+  const os = detectOS();
+  const useBackdrop = os !== 'win' && isCancel;
   return (
     <button
       onClick={enabled ? onClick : undefined}
@@ -120,8 +128,8 @@ function CircleButton({ variant, enabled, onClick }: CircleButtonProps) {
         height: 28,
         borderRadius: 999,
         background: isCancel ? 'rgba(255, 255, 255, 0.55)' : 'rgba(255, 255, 255, 0.92)',
-        backdropFilter: isCancel ? 'blur(12px) saturate(160%)' : 'none',
-        WebkitBackdropFilter: isCancel ? 'blur(12px) saturate(160%)' : 'none',
+        backdropFilter: useBackdrop ? 'blur(12px) saturate(160%)' : 'none',
+        WebkitBackdropFilter: useBackdrop ? 'blur(12px) saturate(160%)' : 'none',
         color: 'var(--ol-ink)',
         border: '0.8px solid rgba(0, 0, 0, 0.08)',
         display: 'inline-flex',
@@ -129,6 +137,7 @@ function CircleButton({ variant, enabled, onClick }: CircleButtonProps) {
         justifyContent: 'center',
         cursor: enabled ? 'default' : 'not-allowed',
         opacity: enabled ? 1 : 0.42,
+        visibility: 'visible',
         flexShrink: 0,
         padding: 0,
         boxShadow: '0 1px 2px rgba(0, 0, 0, 0.06)',
@@ -222,9 +231,7 @@ function Pill({ os, state, level, insertedChars, message, onCancel, onConfirm }:
   const ambient = state === 'recording' ? Math.min(1, Math.max(0, level)) : 0;
   const scale = os === 'win' ? 1 : 1 + ambient * 0.018;
   const shadowAlpha = 0.20 + ambient * 0.10;
-  const dropShadow = os === 'win'
-    ? `drop-shadow(0 12px 24px rgba(0, 0, 0, ${(0.15 + ambient * 0.06).toFixed(3)}))`
-    : 'none';
+  const useBackdrop = os !== 'win';
 
   return (
     <div
@@ -236,13 +243,14 @@ function Pill({ os, state, level, insertedChars, message, onCancel, onConfirm }:
         padding: '0 8px',
         width: metrics.width,
         height: metrics.height,
+        boxSizing: metrics.boxSizing,
         borderRadius: 999,
         background: 'rgba(255, 255, 255, 0.62)',
-        backdropFilter: 'blur(28px) saturate(180%)',
-        WebkitBackdropFilter: 'blur(28px) saturate(180%)',
+        backdropFilter: useBackdrop ? 'blur(28px) saturate(180%)' : 'none',
+        WebkitBackdropFilter: useBackdrop ? 'blur(28px) saturate(180%)' : 'none',
         border: '1px solid rgba(255, 255, 255, 0.55)',
         boxShadow: os === 'win'
-          ? '0 0 0 0.5px rgba(0, 0, 0, 0.08), inset 0 0.5px 0 rgba(255, 255, 255, 0.55)'
+          ? `0 10px 24px -14px rgba(0, 0, 0, ${(0.24 + ambient * 0.06).toFixed(3)}), 0 0 0 0.5px rgba(0, 0, 0, 0.08), inset 0 0.5px 0 rgba(255, 255, 255, 0.55)`
           : `0 18px 50px -10px rgba(0, 0, 0, ${shadowAlpha.toFixed(3)}), 0 0 0 0.5px rgba(0, 0, 0, 0.08), inset 0 0.5px 0 rgba(255, 255, 255, 0.55)`,
         color: 'var(--ol-ink)',
         fontFamily: 'var(--ol-font-sans)',
@@ -250,7 +258,6 @@ function Pill({ os, state, level, insertedChars, message, onCancel, onConfirm }:
         transformOrigin: 'center',
         transition: 'transform 0.08s var(--ol-motion-quick), box-shadow 0.08s var(--ol-motion-quick)',
         willChange: 'transform, box-shadow',
-        filter: dropShadow,
       }}
     >
       <CircleButton variant="cancel" enabled={enabled} onClick={onCancel} />
@@ -318,7 +325,10 @@ export function Capsule() {
         position: 'relative',
         display: 'flex',
         alignItems: 'center',
-        justifyContent: os === 'win' ? 'flex-end' : 'center',
+        justifyContent: 'center',
+        paddingLeft: hostMetrics.horizontalInset,
+        paddingRight: hostMetrics.horizontalInset,
+        boxSizing: hostMetrics.boxSizing,
         paddingTop: os === 'win'
           ? Math.max(0, hostMetrics.height - metrics.height - hostMetrics.bottomInset)
           : 0,
@@ -336,7 +346,7 @@ export function Capsule() {
           position: 'absolute',
           left: '50%',
           // macOS / Linux：胶囊窗口 220×110、pill 居中，badge 锚到 pill 中线上方 21+8。
-          // Windows：pill 不居中（带 12pt 阴影 inset），用 hostMetrics 量到底部 inset + pill 高 + gap。
+          // Windows：host 比 pill 多出左右 12px / 底部 12px 的阴影空间，pill 仍保持居中。
           bottom: os === 'win'
             ? `${hostMetrics.bottomInset + metrics.height + hostMetrics.badgeGap}px`
             : 'calc(50% + 21px + 8px)',
diff --git a/openless-all/app/src/components/SettingsModal.tsx b/openless-all/app/src/components/SettingsModal.tsx
index d32a4295..0f85aa81 100644
--- a/openless-all/app/src/components/SettingsModal.tsx
+++ b/openless-all/app/src/components/SettingsModal.tsx
@@ -333,6 +333,7 @@ function LanguagePicker() {
     >
       <option value={FOLLOW_SYSTEM}>{t('settings.language.followSystem')}</option>
       <option value="zh-CN">{t('settings.language.zh')}</option>
+      <option value="zh-TW">{t('settings.language.zhTW')}</option>
       <option value="en">{t('settings.language.en')}</option>
     </select>
   );
diff --git a/openless-all/app/src/i18n/en.ts b/openless-all/app/src/i18n/en.ts
index 069b6f52..00e5c607 100644
--- a/openless-all/app/src/i18n/en.ts
+++ b/openless-all/app/src/i18n/en.ts
@@ -391,6 +391,7 @@ export const en: typeof zhCN = {
       labelDesc: 'Choose "Follow system" to match the OS language at launch.',
       followSystem: 'Follow system',
       zh: '简体中文',
+      zhTW: '繁體中文',
       en: 'English',
       restartHint: 'Some native menus (system tray, etc.) may require an app restart to fully switch.',
     },
diff --git a/openless-all/app/src/i18n/index.ts b/openless-all/app/src/i18n/index.ts
index d326eaa7..b366837a 100644
--- a/openless-all/app/src/i18n/index.ts
+++ b/openless-all/app/src/i18n/index.ts
@@ -12,8 +12,9 @@ import i18n from 'i18next';
 import { initReactI18next } from 'react-i18next';
 import { en } from './en';
 import { zhCN } from './zh-CN';
+import { zhTW } from './zh-TW';
 
-export const SUPPORTED_LOCALES = ['zh-CN', 'en'] as const;
+export const SUPPORTED_LOCALES = ['zh-CN', 'zh-TW', 'en'] as const;
 export type SupportedLocale = (typeof SUPPORTED_LOCALES)[number];
 
 export const LOCALE_STORAGE_KEY = 'ol.locale';
@@ -22,14 +23,17 @@ const FOLLOW_SYSTEM_VALUE = 'system';
 function detectSystemLocale(): SupportedLocale {
   if (typeof navigator === 'undefined') return 'zh-CN';
   const nav = (navigator.language || '').toLowerCase();
-  if (nav.startsWith('zh')) return 'zh-CN';
+  if (nav.startsWith('zh')) {
+    if (nav.includes('hant') || nav.includes('tw') || nav.includes('hk') || nav.includes('mo')) return 'zh-TW';
+    return 'zh-CN';
+  }
   return 'en';
 }
 
 function getStoredLocale(): SupportedLocale | null {
   if (typeof window === 'undefined') return null;
   const raw = window.localStorage.getItem(LOCALE_STORAGE_KEY);
-  return raw === 'zh-CN' || raw === 'en' ? raw : null;
+  return raw === 'zh-CN' || raw === 'zh-TW' || raw === 'en' ? raw : null;
 }
 
 const initialLng: SupportedLocale = getStoredLocale() ?? detectSystemLocale();
@@ -37,6 +41,7 @@ const initialLng: SupportedLocale = getStoredLocale() ?? detectSystemLocale();
 void i18n.use(initReactI18next).init({
   resources: {
     'zh-CN': { translation: zhCN },
+    'zh-TW': { translation: zhTW },
     en: { translation: en },
   },
   lng: initialLng,
diff --git a/openless-all/app/src/i18n/zh-CN.ts b/openless-all/app/src/i18n/zh-CN.ts
index d156ef1c..9ed8912e 100644
--- a/openless-all/app/src/i18n/zh-CN.ts
+++ b/openless-all/app/src/i18n/zh-CN.ts
@@ -389,6 +389,7 @@ export const zhCN = {
       labelDesc: '选择「跟随系统」时按操作系统当前语言显示。',
       followSystem: '跟随系统',
       zh: '简体中文',
+      zhTW: '繁體中文',
       en: 'English',
       restartHint: '部分原生菜单（系统托盘等）可能需要重启 App 才会切换。',
     },
diff --git a/openless-all/app/src/i18n/zh-TW.ts b/openless-all/app/src/i18n/zh-TW.ts
new file mode 100644
index 00000000..5bd7fa0f
--- /dev/null
+++ b/openless-all/app/src/i18n/zh-TW.ts
@@ -0,0 +1,515 @@
+import type { zhCN } from './zh-CN';
+
+// 繁體中文資源 — 與產品當前文案保持一致。
+// 新增 key 時，必須同步更新 en.ts，避免切換到 English 後出現中文殘留。
+
+export const zhTW: typeof zhCN = {
+  app: {
+    name: 'OpenLess',
+    tagline: '自然說話，完美書寫',
+  },
+  common: {
+    loading: '加載中…',
+    refresh: '刷新',
+    clear: '清空',
+    copy: '複製',
+    delete: '刪除',
+    later: '稍後',
+    cancel: '取消',
+    close: '關閉',
+    show: '顯示',
+    hide: '隱藏',
+    saved: '已保存',
+    saving: '保存中',
+    copied: '已複製',
+    operationFailed: '操作失敗',
+    add: '添加',
+    durationSeconds: '{{value}} 秒',
+    durationMinutes: '{{value}} 分鐘',
+  },
+  capsule: {
+    thinking: '正在思考中',
+    cancelled: '已取消',
+    error: '出錯了',
+    inserted: '已插入 {{count}}',
+    translating: '正在翻譯',
+  },
+  qa: {
+    thinking: '思考中…',
+    error: '出錯了，請稍後再試。',
+    errorRetry: '重試',
+    errorRetryHint: '再按 {{recordHotkey}} 重新提問。',
+    pinTooltip: '固定（不自動關閉）',
+    unpinTooltip: '取消固定',
+    closeTooltip: '關閉',
+    selectionPreview: '基於選中文本：',
+    emptyTitle: '按 {{recordHotkey}} 開始提問',
+    emptyDesc: '在任意 app 選中一段文字後，按一次 {{recordHotkey}} 開始錄音，再按一次結束並提交。回答會顯示在這裏，可以連續多輪追問。',
+    recordingHint: '錄音中…再按一次 {{recordHotkey}} 結束並提問',
+    statusIdle: '按 {{recordHotkey}} 提問',
+    statusRecording: '錄音中',
+    statusThinking: '思考中',
+    statusError: '出錯了',
+  },
+  nav: {
+    overview: '概覽',
+    history: '歷史',
+    vocab: '詞彙表',
+    style: '風格',
+    translation: '翻譯',
+    selectionAsk: '劃詞追問',
+  },
+  shell: {
+    shortcutLabel: '錄音快捷鍵',
+    shortcutHint: '開始 / 停止',
+    betaTag: 'BETA',
+    betaNote: '所有數據都只保存在本機。',
+    footer: {
+      account: '賬戶',
+      feedback: '反饋',
+      settings: '設置',
+      help: '幫助',
+      version: '版本 {{version}}',
+      helpPopover: {
+        tagline: '本地驅動的語音輸入層',
+        releaseNotes: '查看發佈日誌 ↗',
+        docs: '幫助中心 ↗',
+      },
+    },
+    providerPrompt: {
+      title: '設置語音提供商',
+      body: '還沒有配置 ASR 或 LLM 提供商，語音輸入和潤色暫時無法正常工作。',
+      later: '稍後',
+      openSettings: '去設置',
+    },
+    hotkeyModePrompt: {
+      title: '檢查錄音方式',
+      body: '本版本默認改爲“切換式說話”。如果你之前改過快捷鍵觸發方式，請到“錄音”裏手動確認一次。本次更新同時調整了快捷鍵方式的讀取邏輯；如果你更習慣按住說話，可以重新切回“按住說話”。',
+      later: '稍後提醒',
+      openSettings: '去錄音設置',
+    },
+  },
+  onboarding: {
+    welcome: '歡迎使用 OpenLess',
+    intro: '本地說出，本地落字。開始前需要兩個系統權限。',
+    accessibilityTitle: '輔助功能',
+    hotkeyTitle: '全局快捷鍵',
+    accessibilityDesc: '用於監聽全局快捷鍵（默認 {{trigger}}）並把識別結果寫入光標位置。',
+    hotkeyDesc: '用於確認全局快捷鍵監聽可用。',
+    micTitle: '麥克風',
+    micDesc: '用於捕獲你的語音輸入。',
+    actionNotApplicable: '無需授權',
+    actionGranted: '已授權',
+    actionOpenSystem: '打開系統設置',
+    actionGrant: '授權',
+    actionRequestMic: '彈出授權',
+    accessibilityHint: '授權後必須**完全退出 OpenLess** 再重新打開（macOS TCC 規則）。',
+    footerHint: '授權全部完成後此引導自動關閉。如果一直不消失，從菜單欄 OpenLess → 退出，重新打開 App。',
+  },
+  overview: {
+    kicker: 'DASHBOARD',
+    title: '今日概覽',
+    desc: '本地說出，本地落字。下面是你今日的口述節奏與系統狀態。',
+    pressPrefix: '按',
+    pressSuffix: '開始錄音',
+    asrKind: 'ASR 語音',
+    llmKind: 'LLM 模型',
+    asrName: '火山引擎',
+    asrSubname: 'bigmodel',
+    llmName: 'OpenAI 兼容',
+    llmConfigured: '已配置 active LLM',
+    llmNotConfigured: '未配置',
+    statusConfigured: '已配置',
+    statusNotConfigured: '未配置',
+    metricChars: '今日字數',
+    metricSegments: '{{count}} 段',
+    metricDuration: '今日總時長',
+    metricAvg: '平均段落',
+    metricAvgTrend: '今日均值',
+    metricNoData: '暫無數據',
+    metricTotal: '累計記錄',
+    metricTotalTrend: '本機存檔 (上限 200)',
+    weekTitle: '近 7 天',
+    weekUnit: '條數 / 天',
+    recentTitle: '最近識別',
+    recentAll: '全部記錄 →',
+    recentEmpty: '還沒有記錄。按 {{trigger}} 開始第一次錄音。',
+    weekDays: ['日', '一', '二', '三', '四', '五', '六'],
+  },
+  history: {
+    kicker: 'HISTORY',
+    title: '歷史記錄',
+    desc: '最近的識別結果只保存在本機。左側爲時間線，右側爲原文與潤色對比。',
+    filterAll: '全部',
+    summary: '共 {{total}} 條 · 顯示 {{shown}}',
+    empty: '還沒有歷史記錄。按 {{trigger}} 錄一段試試。',
+    rawLabel: '原文',
+    rawEmpty: '（空）',
+    selectHint: '左側選一條查看詳情。',
+    insertedTo: '插入到',
+    chars: '{{count}} 字',
+    vocabHits: '{{count}} 個熱詞',
+    inserted: '已插入',
+    pasteSent: '已嘗試粘貼',
+    copiedFallback: '已複製(需 {{shortcut}})',
+    insertFailed: '插入失敗',
+    confirmClear: '確定清空全部 {{count}} 條記錄？此操作不可恢復。',
+  },
+  vocab: {
+    kicker: 'VOCABULARY',
+    title: '詞彙表',
+    desc: '告訴模型識別前可能出現的詞——生詞、新詞或專業詞彙。同時進入 ASR 熱詞與後期模型上下文。',
+    placeholder: '輸入詞語，按 Enter 或點添加…',
+    tip: '支持中英混合 · 數字開頭按字面識別 · 命中次數自動計數',
+    loadFailed: '加載失敗:{{err}}',
+    empty: '還沒有詞條。在上面輸入一個生詞或專業術語，讓模型在聽寫時優先匹配。',
+    tipDisabled: '點擊禁用此詞條',
+    tipEnabled: '點擊啓用此詞條',
+    removeAria: '刪除',
+    presets: {
+      title: '場景預設',
+      tip: '可多選後批量啓用；支持編輯和新建，已爲後續導入導出預留本地結構。',
+      create: '新建預設',
+      apply: '啓用所選',
+      save: '保存預設',
+      edit: '編輯 {{name}}',
+      newPreset: '新預設',
+      namePlaceholder: '預設名稱',
+      wordsPlaceholder: '詞條（用逗號或換行分隔）',
+    },
+  },
+  style: {
+    kicker: 'STYLE',
+    title: '輸出風格',
+    desc: '選擇默認風格用於全局錄音。每張卡可單獨啓停；啓停的風格不會出現在歷史記錄的「重新潤色」切換中。',
+    masterToggle: '整體啓用',
+    currentDefault: '當前默認',
+    ariaSetDefault: '設爲默認',
+    modes: {
+      raw: { name: '原文', desc: '只補標點和必要分句，不改寫不擴寫。', sample: '保留原始口語；嗯、那個等口癖會被去除，但不會重組語句。' },
+      light: { name: '輕度潤色', desc: '去口癖、補標點，整理爲可發送的自然文字。', sample: '讓轉寫聽起來不像念稿——保留語氣和表達習慣，但行文流暢。' },
+      structured: { name: '清晰結構', desc: '多個主題或步驟時，自動組織爲分點列表。', sample: '1. 主題一\na. 要點\nb. 要點\n2. 主題二\na. 要點\nb. 要點' },
+      formal: { name: '正式表達', desc: '工作溝通和郵件場景，更專業更完整。', sample: '郵件場景自動識別問候 / 落款；不引入空泛客套。' },
+    },
+  },
+  translation: {
+    kicker: 'TRANSLATION',
+    title: '翻譯',
+    desc: '把口述的內容自動翻譯成目標語言後再插入。目標語言、工作語言、觸發方式都在這裏配置。',
+    statusEnabled: '已啓用',
+    statusDisabled: '未啓用',
+    working: {
+      title: '工作語言',
+      desc: '勾選你日常會用到的語言（多選）。這組語言會作爲前提注入 LLM 的 system prompt 頭部，影響潤色與翻譯的判斷（專名拼寫、語氣、行文習慣）。',
+    },
+    target: {
+      title: '翻譯目標語言',
+      desc: '選了某個語言後，錄音過程中任意時刻按一下 Shift，停止後就會把轉寫翻譯成該語言再插入到光標位置。選「不啓用」則 Shift 沒有任何效果，走普通潤色管線。',
+      disabled: '不啓用（Shift 按下不觸發翻譯）',
+    },
+    howto: {
+      title: '使用方法',
+      step1: '在另一個 app 的輸入框裏聚焦光標（備忘錄、郵件、聊天窗口都行）。',
+      step2: '按一下"錄音快捷鍵"（當前是 {{trigger}}），開始錄音。',
+      step3: '在錄音過程中任意時刻按一下 Shift——按一下即可，不需要按住，可以在開口前、說到一半、快說完時按。',
+      step4: '再按一下"錄音快捷鍵"停止錄音。',
+      step5: '系統會把轉寫交給大模型翻譯成上面選的目標語言，然後插入到一開始那個輸入框光標位置。',
+      indicatorTitle: '怎麼知道翻譯模式生效了',
+      indicatorDesc: '一旦按下 Shift，屏幕底部錄音膠囊的上方會立刻懸浮一個藍色"● 正在翻譯"小藥丸——它會一直顯示到本次插入完成，讓你確認這次輸出會走翻譯管線。',
+      fallbackTitle: '安全兜底',
+      fallbackDesc: '翻譯模式選「不啓用」時 Shift 是沒作用的；翻譯過程中如果大模型調用失敗，會回退到把原始中文轉寫直接插入，不會丟字。詳見 issue #4。',
+    },
+  },
+  selectionAsk: {
+    kicker: 'SELECTION ASK',
+    title: '劃詞追問',
+    desc: '選中任意 app 裏的一段文字，按 {{hotkey}} 彈出浮窗，再按 {{recordHotkey}} 錄音提問。支持多輪追問，浮窗一直保留直到你手動關。',
+    statusEnabled: '已啓用',
+    statusDisabled: '未啓用',
+    hotkey: {
+      title: '彈出浮窗的快捷鍵',
+      desc: '只決定「打開 / 關閉」浮窗。浮窗裏錄音 / 提問統一用 {{recordHotkey}}（與你的主聽寫鍵複用）。選「不啓用」則關閉整個功能。',
+      optionDisabled: '不啓用',
+      chordWarning: '',
+    },
+    history: {
+      title: '保存歷史',
+      desc: '勾上則把每次追問的「選中文本 + 你的語音問題 + AI 答案」寫入本地存檔（不上雲）。默認關，關閉時浮窗一關問答即遺忘，更注重隱私。',
+    },
+    howto: {
+      title: '使用方法',
+      step1: '按「{{hotkey}}」在任意時刻打開浮窗（不需要先選文字）。',
+      step2: '在任意 app（瀏覽器、Mail、IDE、PDF reader…）裏選中一段文字。',
+      step3: '按一下 **{{recordHotkey}}**——開始錄音；再按一下 {{recordHotkey}}，停止並提交，AI 答案顯示在浮窗裏。',
+      step4: '同一個浮窗裏可繼續多輪追問：再按 {{recordHotkey}} 錄音 → 再按 {{recordHotkey}} 提交。可以重新選文字讓下一輪帶新選區，也可以不選直接對話。',
+      step5: '按 Esc 或浮窗右上角 ✕ 關閉，關閉即清空所有多輪歷史。再按「{{hotkey}}」就是一段新的對話。',
+      windowTitle: '浮窗位置 + 拖動 + 釘住',
+      windowDesc: '浮窗第一次打開在屏幕底部錄音膠囊正上方；標題欄可拖動，移到任意位置後下一次打開會保留位置（同一次啓動期間）。右上角 📌 釘住時即使重新提問也保留窗口；不釘住按 Esc 即關。',
+      privacyTitle: '隱私契約',
+      privacyDesc: '選中的文本只在內存裏活到浮窗關閉，**絕不**寫入歷史存檔（保存歷史開關只控制問答 metadata）；超過 4000 字符會截首+尾各 2000 後再上送大模型，避免泄露太多。LLM 調用走你已配的 ARK / DeepSeek 等 OpenAI 兼容 endpoint。',
+    },
+  },
+  settings: {
+    kicker: 'SETTINGS',
+    title: '設置',
+    desc: '錄音方式、模型與語音提供商、快捷鍵、權限與關於信息——全部在這裏。',
+    sections: {
+      recording: '錄音',
+      providers: '提供商',
+      shortcuts: '快捷鍵',
+      permissions: '權限',
+      language: '語言',
+      about: '關於',
+    },
+    recording: {
+      title: '錄音',
+      desc: '定義全局錄音的快捷鍵與觸發方式。',
+      hotkeyLabel: '錄音快捷鍵',
+      hotkeyDescAcc: '按下即開始捕獲語音，全局生效。需要授予輔助功能權限。',
+      hotkeyDescNoAcc: '按下即開始捕獲語音，全局生效。無需額外輔助功能授權。',
+      modeLabel: '錄音方式',
+      modeDesc: '切換式 = 按一次開始、再按一次結束；按住說話 = 按住開始、鬆開結束。',
+      modeToggle: '切換式',
+      modeHold: '按住說話',
+      migrationNoticeTitle: '默認已改爲切換式說話',
+      migrationNoticeDesc: '如果你之前改過快捷鍵觸發方式，請在這裏手動確認一次。本次更新調整了快捷鍵方式的默認值與讀取邏輯；如果你更習慣按住說話，可以重新切回“按住說話”。',
+      capsuleLabel: '錄音膠囊',
+      capsuleDesc: '錄音 / 轉寫時在屏幕底部顯示半透明膠囊。',
+      restoreClipboardLabel: '插入後恢復剪貼板',
+      restoreClipboardDesc: '僅 Windows / Linux：粘貼成功後恢復你原來的剪貼板內容（默認開）。關掉就把聽寫文本留在剪貼板，模擬粘貼沒真正落地時可以手動 Ctrl+V 找回。詳見 issue #111。',
+      allowNonTsfFallbackLabel: '允許非 TSF 兜底',
+      allowNonTsfFallbackDesc: '僅 Windows：TSF 直接上屏失敗後，允許改用 Unicode SendInput、快捷鍵粘貼或 WM_PASTE。關閉後可驗證是否真實使用 TSF 輸入。',
+      startupAtBoot: '開機自啓',
+      startupAtBootDesc: '登錄後自動啓動 OpenLess。macOS 寫 LaunchAgent，Linux 寫 ~/.config/autostart，Windows 寫 HKCU\\Run（不需要管理員）。詳見 issue #194。',
+      startupAtBootError: '開機自啓切換失敗：{{message}}',
+    },
+    providers: {
+      llmTitle: 'LLM 模型（潤色）',
+      llmDesc: 'OpenAI 兼容協議，支持多家供應商切換。',
+      providerLabel: '供應商',
+      llmProviderDesc: '選擇後將自動填入 Base URL 默認值。',
+      asrProviderDesc: '切換後將自動選用對應憑據。',
+      asrTitle: 'ASR 語音（轉寫）',
+      asrDesc: '用於將口述實時轉寫爲文本。',
+      presets: {
+        ark: 'ARK（火山方舟）',
+        deepseek: 'DeepSeek',
+        siliconflow: '硅基流動',
+        openai: 'OpenAI',
+        custom: '自定義',
+        asrVolcengine: '火山引擎 bigasr',
+        asrSiliconflow: '硅基流動 SenseVoice',
+        asrZhipu: '智譜 GLM-ASR',
+        asrGroq: 'Groq Whisper-large-v3',
+        asrWhisper: 'OpenAI Whisper（兼容）',
+      },
+      volcengineAppKeyLabel: 'APP ID',
+      volcengineAccessKeyLabel: 'Access Token',
+      volcengineResourceIdLabel: 'Resource ID',
+      volcengineMappingNote: 'Secret Key 當前無需填寫。Resource ID 默認使用 volc.bigasr.sauc.duration。',
+      fillDefault: '填入默認值',
+      readFailed: '讀取失敗',
+      apiKeyLabel: 'API 密鑰',
+      baseUrlLabel: '接口地址',
+      modelLabel: '模型',
+      appIdLabel: 'App ID（應用 ID）',
+      accessKeyLabel: 'Access Key',
+      resourceIdLabel: '資源 ID',
+      toolsLabel: '連接檢查',
+      toolsDesc: '先保存上方配置，再驗證當前模型連通性或拉取模型；失敗時仍可手動填寫模型 ID。',
+      validate: '驗證',
+      validating: '驗證中…',
+      fetchModels: '拉取模型',
+      loadingModels: '拉取模型中…',
+      modelMissing: '未配置模型，請先填寫模型 ID。',
+      modelsEmpty: '鑑權成功，但沒有返回可用模型。',
+      modelsLoaded: '已拉取 {{count}} 個模型。',
+      selectModel: '選擇一個模型寫入上方字段',
+      modelSaved: '已保存模型 {{model}}。',
+      validateSuccess: '連接檢查通過。',
+      providerHttpStatus: '供應商接口返回 {{status}}，請檢查 API Key 權限或 Endpoint。',
+      endpointMustUseHttps: 'Endpoint 必須使用 HTTPS（本地 localhost/127.0.0.1 測試除外）。',
+      endpointInvalid: 'Endpoint 格式不合法。',
+      responseTooLarge: '供應商響應過大，已停止驗證以保證安全。',
+      asrInvalidJson: 'ASR 響應不是有效 JSON。',
+      asrMissingTextField: 'ASR 響應缺少 text 字段。',
+      apiKeyMissing: 'API Key 爲空。',
+      endpointMissing: 'Endpoint 爲空。',
+      requestTimeout: '請求超時，請稍後重試。',
+    },
+    shortcuts: {
+      title: '快捷鍵速查',
+      descAcc: '所有快捷鍵全局生效，需要在權限設置中開啓輔助功能。',
+      descNoAcc: '所有快捷鍵全局生效。若無響應，請在權限頁查看全局快捷鍵監聽狀態。',
+      startStop: '開始 / 停止錄音',
+      cancel: '取消本次錄音',
+      confirm: '膠囊確認插入',
+      switchStyle: '切換上一次風格',
+      openApp: '打開 OpenLess',
+      confirmHint: '點擊右側 ✓',
+      notSupported: '暫未支持',
+    },
+    permissions: {
+      title: '權限',
+      descAcc: 'OpenLess 需要以下系統權限才能正常工作。授權後通常需要完全退出 App 重啓一次才生效。',
+      descNoAcc: 'OpenLess 需要麥克風可用，並依賴全局快捷鍵監聽狀態判斷 native hook 是否正常工作。',
+      micLabel: '麥克風',
+      micDesc: '用於捕獲你的語音輸入。',
+      accLabel: '輔助功能',
+      accDesc: '用於監聽全局快捷鍵並將識別結果寫入光標位置。',
+      hotkeyLabel: '全局快捷鍵',
+      hotkeyDescWithAdapter: '當前適配器：{{adapter}}。用於判斷快捷鍵監聽是否已經安裝。',
+      hotkeyDescPlain: '用於判斷快捷鍵監聽是否已經安裝。',
+      networkLabel: '網絡',
+      networkDesc: '雲端 ASR / LLM 調用所必需。本地模式可關閉。',
+      networkOk: '可用',
+      checking: '檢查中…',
+      granted: '已授權',
+      notApplicable: '無需授權',
+      denied: '未授權',
+      indeterminate: '未確定',
+      openSystem: '打開系統設置',
+      grant: '授權',
+      hotkeyInstalled: '已安裝',
+      hotkeyStarting: '安裝中…',
+      hotkeyFailed: '監聽失敗',
+      windowsImeLabel: 'Windows 輸入法後端',
+      windowsImeDesc: '用於在語音會話期間臨時切換到 OpenLess TSF 輸入法，避免剪貼板插入限制。',
+      windowsImeInstalled: '已安裝',
+      windowsImeUnavailable: '不可用',
+      windowsIme: {
+        installed: '已安裝。語音輸入時會臨時切換到 OpenLess 輸入法。',
+        notInstalled: '未安裝。OpenLess 正在使用剪貼板 / WM_PASTE 兜底。',
+        registrationBroken: '註冊已損壞。請重新安裝 OpenLess 輸入法。',
+        notWindows: '僅 Windows 可用。',
+      },
+    },
+    language: {
+      title: '界面語言',
+      desc: '切換 UI 顯示語言。當前會話即時生效，下次啓動自動沿用。',
+      label: '語言',
+      labelDesc: '選擇「跟隨系統」時按操作系統當前語言顯示。',
+      followSystem: '跟隨系統',
+      zh: '簡體中文',
+      zhTW: '繁體中文',
+      en: 'English',
+      restartHint: '部分原生菜單（系統托盤等）可能需要重啓 App 纔會切換。',
+    },
+    about: {
+      tagline: '自然說話，完美書寫',
+      checkUpdate: '檢查更新',
+      checkUpdateBtn: '檢查',
+      checkingUpdate: '檢查中…',
+      upToDate: '當前已是最新版本。',
+      updateError: '檢查或更新失敗，請稍後重試。',
+      openReleases: '打開 Releases',
+      source: '源碼',
+      docs: '文檔',
+      feedback: '反饋',
+      qq: '社區 QQ 羣',
+      qqDesc: '使用 QQ 搜索羣號加入，或掃碼進羣。',
+      copyQq: '複製羣號',
+      privacy: '隱私',
+      privacyDesc: '所有識別結果僅保存在本機。雲端 API 僅用於實時轉寫與潤色，不會保留你的錄音。',
+      localFirst: '本地優先',
+      updateDialog: {
+        available: {
+          title: '發現新版本',
+          desc: '發現 OpenLess {{version}}，是否現在更新？',
+        },
+        downloading: {
+          title: '正在下載更新',
+          desc: '正在下載 OpenLess {{version}}，請保持應用打開。',
+        },
+        downloaded: {
+          title: '更新已準備好',
+          desc: 'OpenLess {{version}} 已安裝完成。是否現在自動重啓以應用更新？',
+        },
+        installing: {
+          title: '正在安裝更新',
+          desc: '正在安裝 OpenLess {{version}}，請保持應用打開。',
+        },
+        install: '現在更新',
+        downloadingLabel: '下載中…',
+        installingLabel: '安裝中…',
+        later: '稍後手動重啓',
+        restartNow: '現在重啓',
+        progress: '{{progress}}% · {{downloaded}} / {{total}}',
+        progressUnknown: '已下載 {{downloaded}}',
+      },
+    },
+  },
+  modal: {
+    sections: {
+      account: '賬戶',
+      settings: '設置',
+      personalize: '個性化',
+      about: '關於',
+      helpCenter: '幫助中心',
+      releaseNotes: '版本說明',
+    },
+    account: {
+      localUser: '本地用戶',
+      localUserDesc: '未登錄 · 所有數據保存在本機',
+      loginSync: '登錄 / 同步',
+      footer: 'OpenLess 默認完全本地運行。登錄後可在多設備間同步詞彙表與風格預設，識別仍在本機或你配置的 Provider 上完成。',
+    },
+    personalize: {
+      appearance: '外觀',
+      appearanceDesc: '跟隨系統 / 淺色 / 深色',
+      appearanceSystem: '跟隨系統',
+      appearanceLight: '淺色',
+      appearanceDark: '深色',
+      language: '界面語言',
+      font: '字體大小',
+      fontDesc: '整體縮放界面字號，立即生效。',
+      fontSmall: '小',
+      fontMedium: '中',
+      fontLarge: '大',
+      blur: '毛玻璃強度',
+      blurDesc: '影響窗口內層 backdrop-filter 強度（macOS 系統磨砂層無法運行時調）。',
+      startupOpen: '啓動時打開',
+      startupOverview: '概覽',
+      startupLast: '上次位置',
+      startupAtBoot: '開機自啓',
+    },
+    about: {
+      tagline: '自然說話，完美書寫',
+      checkUpdate: '檢查更新',
+      checkUpdateBtn: '檢查',
+      docs: '文檔',
+      docsBtn: 'openless.app/docs ↗',
+      feedback: '反饋渠道',
+      feedbackBtn: 'GitHub Issues ↗',
+      privacy: '隱私',
+      privacyDesc: '所有識別結果只保存在本機，雲端 API 僅用於實時調用。',
+      localFirst: '本地優先',
+    },
+  },
+  windowChrome: {
+    minimize: '最小化',
+    maximize: '最大化',
+    close: '關閉',
+  },
+  hotkey: {
+    triggers: {
+      rightOption: '右 Option',
+      leftOption: '左 Option',
+      rightControl: '右 Control',
+      leftControl: '左 Control',
+      rightCommand: '右 Command',
+      fn: 'Fn (地球鍵)',
+      rightAlt: '右 Alt',
+    },
+    fallback: '全局快捷鍵',
+    modeHoldSuffix: '（按住說話）',
+    modeToggleSuffix: '（開始 / 停止）',
+    usageHold: '按住 {{trigger}} 說話，鬆開結束。',
+    usageToggle: '按 {{trigger}} 開始錄音，再按一次結束。',
+    adapter: {
+      macEventTap: 'macOS Event Tap',
+      windowsLowLevel: 'Windows 低層鍵盤 hook',
+      rdev: 'rdev 監聽器',
+    },
+  },
+};
diff --git a/openless-all/app/src/lib/capsuleLayout.test.ts b/openless-all/app/src/lib/capsuleLayout.test.ts
index 9fe675cb..c4a0f6c0 100644
--- a/openless-all/app/src/lib/capsuleLayout.test.ts
+++ b/openless-all/app/src/lib/capsuleLayout.test.ts
@@ -1,4 +1,5 @@
 import {
+  getCapsuleHostMetrics,
   getCapsuleMessageLayout,
   getCapsulePillMetrics,
 } from './capsuleLayout.ts';
@@ -12,12 +13,39 @@ function assertEqual<T>(actual: T, expected: T, name: string) {
 const winMetrics = getCapsulePillMetrics('win');
 assertEqual(winMetrics.width, 196, 'windows capsule widens pill');
 assertEqual(winMetrics.height, 52, 'windows capsule increases pill height');
-assertEqual(winMetrics.textWidth, 118, 'windows capsule widens text slot');
+assertEqual(winMetrics.textWidth, 104, 'windows capsule keeps side controls clear');
+assertEqual(winMetrics.boxSizing, 'border-box', 'windows capsule pill width is an outer border-box metric');
+
+const winHost = getCapsuleHostMetrics('win', false);
+assertEqual(winHost.width, 220, 'windows capsule host keeps the current outer hitbox width');
+assertEqual(winHost.height, 84, 'windows capsule host keeps regular height');
+assertEqual(winHost.horizontalInset, 12, 'windows capsule host keeps symmetric shadow insets');
+assertEqual(winHost.boxSizing, 'border-box', 'windows capsule host inset is reserved inside the native width');
+assertEqual(
+  winHost.width,
+  winMetrics.width + winHost.horizontalInset * 2,
+  'windows capsule host width derives from pill width plus symmetric side insets',
+);
+assertEqual(
+  winHost.width - winHost.horizontalInset * 2,
+  winMetrics.width,
+  'windows capsule host keeps the visible pill width after reserving side insets',
+);
+
+const winHostWithTranslation = getCapsuleHostMetrics('win', true);
+assertEqual(winHostWithTranslation.width, 220, 'windows translation capsule keeps the same outer width');
+assertEqual(winHostWithTranslation.height, 118, 'windows translation capsule grows vertically only');
+assertEqual(winHostWithTranslation.horizontalInset, 12, 'windows translation capsule keeps symmetric side insets');
+assertEqual(winHostWithTranslation.boxSizing, 'border-box', 'windows translation host keeps the same inset-reserving box model');
 
 const macMetrics = getCapsulePillMetrics('mac');
 assertEqual(macMetrics.width, 176, 'mac capsule keeps existing pill width');
 assertEqual(macMetrics.height, 42, 'mac capsule keeps existing pill height');
 assertEqual(macMetrics.textWidth, 84, 'mac capsule keeps existing text slot');
+assertEqual(macMetrics.boxSizing, 'border-box', 'mac capsule keeps the existing border-box pill model');
+
+const macHost = getCapsuleHostMetrics('mac', false);
+assertEqual(macHost.boxSizing, 'border-box', 'mac capsule host keeps the existing border-box box model');
 
 const winErrorLayout = getCapsuleMessageLayout('win', 'error');
 assertEqual(winErrorLayout.lineClamp, 2, 'windows error message allows two lines');
diff --git a/openless-all/app/src/lib/capsuleLayout.ts b/openless-all/app/src/lib/capsuleLayout.ts
index 7e8c8db7..b8f9207d 100644
--- a/openless-all/app/src/lib/capsuleLayout.ts
+++ b/openless-all/app/src/lib/capsuleLayout.ts
@@ -6,13 +6,16 @@ export interface CapsulePillMetrics {
   width: number;
   height: number;
   textWidth: number;
+  boxSizing: 'border-box' | 'content-box';
 }
 
 export interface CapsuleHostMetrics {
   width: number;
   height: number;
+  horizontalInset: number;
   bottomInset: number;
   badgeGap: number;
+  boxSizing: 'border-box' | 'content-box';
 }
 
 export interface CapsuleMessageLayout {
@@ -22,10 +25,11 @@ export interface CapsuleMessageLayout {
 
 export function getCapsulePillMetrics(os: OS): CapsulePillMetrics {
   if (os === 'win') {
-    return { width: 196, height: 52, textWidth: 118 };
+    // Windows metrics describe the visible outer footprint of the pill.
+    return { width: 196, height: 52, textWidth: 104, boxSizing: 'border-box' };
   }
 
-  return { width: 176, height: 42, textWidth: 84 };
+  return { width: 176, height: 42, textWidth: 84, boxSizing: 'border-box' };
 }
 
 // macOS 走 1.2.11 calc 布局，不依赖 host metrics；Windows 端要更大的 host
@@ -35,9 +39,25 @@ export function getCapsuleHostMetrics(
   translationActive: boolean,
 ): CapsuleHostMetrics {
   if (os === 'win') {
-    return { width: 220, height: translationActive ? 118 : 84, bottomInset: 12, badgeGap: 8 };
+    const horizontalInset = 12;
+    const pill = getCapsulePillMetrics(os);
+    return {
+      width: pill.width + horizontalInset * 2,
+      height: translationActive ? 118 : 84,
+      horizontalInset,
+      bottomInset: 12,
+      badgeGap: 8,
+      boxSizing: 'border-box',
+    };
   }
-  return { width: 176, height: 42, bottomInset: 0, badgeGap: 8 };
+  return {
+    width: 176,
+    height: 42,
+    horizontalInset: 0,
+    bottomInset: 0,
+    badgeGap: 8,
+    boxSizing: 'border-box',
+  };
 }
 
 export function getCapsuleMessageLayout(
diff --git a/openless-all/app/src/pages/Settings.tsx b/openless-all/app/src/pages/Settings.tsx
index 71c1abfd..574d02b9 100644
--- a/openless-all/app/src/pages/Settings.tsx
+++ b/openless-all/app/src/pages/Settings.tsx
@@ -1096,6 +1096,7 @@ function LanguageSection() {
         >
           <option value={FOLLOW_SYSTEM}>{t('settings.language.followSystem')}</option>
           <option value="zh-CN">{t('settings.language.zh')}</option>
+          <option value="zh-TW">{t('settings.language.zhTW')}</option>
           <option value="en">{t('settings.language.en')}</option>
         </select>
       </SettingRow>