diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..f9e88fd
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,5 @@
+BOT_TOKEN=
+TG_WEBHOOK_SECRET=
+AI_BASE_URL=
+AI_API_KEY=
+TURNSTILE_SECRET=
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index d582650..d2d27e1 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -31,6 +31,7 @@ interface TelegramJoinRequest {
     first_name: string;
     last_name?: string;
     username?: string;
+    language_code?: string;
   };
   user_chat_id: number;
   date: number;
@@ -63,6 +64,7 @@ interface PendingJoinRecord {
   status: PendingStatus;
   createdAt: number;
   expiresAt: number;
+  locale: Locale;
   verificationMethod?: VerificationMethod;
   verifyMessageId?: number;
 }
@@ -76,6 +78,7 @@ const JOIN_PREFIX = "join:";
 const ACTIVE_PREFIX = "active:";
 const CHALLENGE_TTL_MS = 10 * 60 * 1000;
 const RECORD_TTL_SECONDS = 24 * 60 * 60;
+type Locale = "zh" | "en";
 
 export default {
   async fetch(request, env, ctx): Promise<Response> {
@@ -140,6 +143,7 @@ async function handleTelegramWebhook({ env, request }: RequestContext): Promise<
   const hasAvatar = await safelyFetchAvatarForUser(env, join.from.id);
   const hasBio = Boolean(join.bio?.trim());
   const now = Date.now();
+  const locale = detectLocale(join.from.language_code);
 
   if (!hasAvatar || !hasBio) {
     const localReasons = [
@@ -164,6 +168,7 @@ async function handleTelegramWebhook({ env, request }: RequestContext): Promise<
       status: "pending",
       createdAt: now,
       expiresAt: now + CHALLENGE_TTL_MS,
+      locale,
     };
 
     const verifyMessageId = await sendVerificationPrompt(env, request, record);
@@ -204,6 +209,7 @@ async function handleTelegramWebhook({ env, request }: RequestContext): Promise<
       status: "pending",
       createdAt: now,
       expiresAt: now + CHALLENGE_TTL_MS,
+      locale,
     };
 
     const verifyMessageId = await sendVerificationPrompt(env, request, record);
@@ -245,6 +251,7 @@ async function handleTelegramWebhook({ env, request }: RequestContext): Promise<
     status: "pending",
     createdAt: now,
     expiresAt: now + CHALLENGE_TTL_MS,
+    locale,
   };
 
   const verifyMessageId = await sendVerificationPrompt(env, request, record);
@@ -269,11 +276,11 @@ async function handleVerifyPage({ env, request }: RequestContext): Promise<Respo
 
   const record = await getPendingRecord(env, token);
   if (!record || record.status !== "pending") {
-    return html(renderStatusPage("链接无效或已失效。"), 404);
+    return html(renderStatusPage(t("en", "invalidLink"), "en"), 404);
   }
 
   if (record.expiresAt <= Date.now()) {
-    return html(renderStatusPage("验证已超时，请重新申请入群。"), 410);
+    return html(renderStatusPage(t(record.locale, "expiredLink"), record.locale), 410);
   }
 
   return html(renderVerifyPage(record, env.TURNSTILE_SITE_KEY));
@@ -478,17 +485,14 @@ async function getPendingRecord(env: Env, token: string): Promise<PendingJoinRec
 
 async function sendVerificationPrompt(env: Env, request: Request, record: PendingJoinRecord): Promise<number> {
   const verifyUrl = `${getVerificationOrigin(env, request)}/verify?token=${encodeURIComponent(record.token)}`;
+  const copy = getCopy(record.locale);
 
   const result = await telegramCall<{ message_id: number }>(env, "sendMessage", {
     chat_id: record.userChatId,
     text:
-      `你申请加入《${record.chatTitle}》需要做一次验证。\n` +
-      `请在 10 分钟内点击下方按钮，在 Telegram 小程序里任选一种方式完成：\n` +
-      `1. Cloudflare Turnstile\n` +
-      `2. 系统生物识别\n\n` +
-      `验证完成后会自动放行入群申请。`,
+      copy.prompt(record.chatTitle),
     reply_markup: {
-      inline_keyboard: [[{ text: "打开验证中心", web_app: { url: verifyUrl } }]],
+      inline_keyboard: [[{ text: copy.openVerification, web_app: { url: verifyUrl } }]],
     },
     disable_web_page_preview: true,
   });
@@ -607,16 +611,17 @@ async function telegramCall<T>(env: Env, method: string, payload: Record<string,
 }
 
 function renderVerifyPage(record: PendingJoinRecord, turnstileSiteKey: string): string {
+  const copy = getCopy(record.locale);
   const token = record.token;
   const displayName = escapeHtml(record.displayName);
   const chatTitle = escapeHtml(record.chatTitle);
 
   return `<!doctype html>
-<html lang="zh-CN">
+<html lang="${record.locale === "zh" ? "zh-CN" : "en"}">
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
-<title>入群验证</title>
+<title>${escapeHtml(copy.pageTitle)}</title>
 <script src="https://telegram.org/js/telegram-web-app.js"></script>
 <script src="https://challenges.cloudflare.com/turnstile/v0/api.js" async defer></script>
 <style>
@@ -638,18 +643,18 @@ body{font-family:-apple-system,system-ui,sans-serif;background:#1a1a2e;color:#ee
 <body>
 
 <div class="info">
-  <div class="title">${displayName} 申请加入 ${chatTitle}</div>
-  <div class="sub">请完成一次简短验证后继续</div>
+  <div class="title">${escapeHtml(copy.headerTitle(displayName, chatTitle))}</div>
+  <div class="sub">${escapeHtml(copy.headerSubtitle)}</div>
 </div>
 
 <div class="section">
-  <div class="label">方式一：Turnstile 人机验证</div>
+  <div class="label">${escapeHtml(copy.turnstileLabel)}</div>
   <div class="cf-turnstile" data-sitekey="${escapeHtml(turnstileSiteKey)}" data-callback="onTurnstile" data-theme="dark" data-size="normal"></div>
 </div>
 
 <div class="section">
-  <div class="label">方式二：系统生物识别</div>
-  <button type="button" class="btn" id="bio">开始验证</button>
+  <div class="label">${escapeHtml(copy.biometricLabel)}</div>
+  <button type="button" class="btn" id="bio">${escapeHtml(copy.startVerification)}</button>
 </div>
 
 <div id="msg"></div>
@@ -667,31 +672,32 @@ try{if(tg){tg.ready();tg.expand()}}catch(e){}
 function show(t,ok){msg.textContent=t;msg.className=ok?"ok":"err"}
 
 function done(){
-  show("验证通过，5 秒后自动关闭",true);
-  try{if(tg&&tg.MainButton){tg.MainButton.setText("关闭");tg.MainButton.show();tg.MainButton.onClick(function(){tg.close()})}}catch(e){}
+  show(${JSON.stringify("__SUCCESS__")},true);
+  if(msg.textContent==="__SUCCESS__")msg.textContent=${JSON.stringify(copy.success)};
+  try{if(tg&&tg.MainButton){tg.MainButton.setText(${JSON.stringify(copy.close)});tg.MainButton.show();tg.MainButton.onClick(function(){tg.close()})}}catch(e){}
   try{if(tg){setTimeout(function(){try{tg.close()}catch(e){}},5000)}}catch(e){}
 }
 
 window.onTurnstile=function(tk){
-  if(!initData){show("当前验证环境无效，请回到 Telegram 重新打开",false);return}
-  show("正在验证...",true);
+  if(!initData){show(${JSON.stringify(copy.invalidEnvironment)},false);return}
+  show(${JSON.stringify(copy.verifying)},true);
   fetch(O+"/api/verify/turnstile",{method:"POST",headers:{"content-type":"application/json"},body:JSON.stringify({token:T,turnstileToken:tk,initData:initData})})
   .then(function(r){return r.json()})
-  .then(function(d){if(d.ok){done()}else{show(d.error||"验证失败",false)}})
-  .catch(function(e){show("网络错误："+e.message,false)});
+  .then(function(d){if(d.ok){done()}else{show(d.error||${JSON.stringify(copy.verificationFailed)},false)}})
+  .catch(function(e){show(${JSON.stringify(copy.networkErrorPrefix)}+e.message,false)});
 };
 
 function initBio(){
   var bioBtn=document.getElementById("bio");
-  if(!bm){bioBtn.textContent="当前环境不支持生物识别";bioBtn.disabled=true;return}
+  if(!bm){bioBtn.textContent=${JSON.stringify(copy.biometricUnavailable)};bioBtn.disabled=true;return}
   bm.init(function(){
-    if(!bm.isInited){bioBtn.textContent="生物识别初始化失败";bioBtn.disabled=true;return}
-    if(!bm.isBiometricAvailable){bioBtn.textContent="当前设备无生物识别硬件";bioBtn.disabled=true;return}
-    var label=bm.biometricType==="face"?"Face ID 验证":bm.biometricType==="finger"?"指纹验证":"生物识别验证";
+    if(!bm.isInited){bioBtn.textContent=${JSON.stringify(copy.biometricInitFailed)};bioBtn.disabled=true;return}
+    if(!bm.isBiometricAvailable){bioBtn.textContent=${JSON.stringify(copy.biometricUnavailable)};bioBtn.disabled=true;return}
+    var label=bm.biometricType==="face"?${JSON.stringify(copy.faceId)}:bm.biometricType==="finger"?${JSON.stringify(copy.fingerprint)}:${JSON.stringify(copy.biometricLabel)};
     bioBtn.textContent=label;
     if(!bm.isAccessGranted){
-      bm.requestAccess({reason:"用于入群身份验证"},function(ok){
-        if(!ok){bioBtn.textContent="生物识别权限被拒绝";bioBtn.disabled=true}
+      bm.requestAccess({reason:${JSON.stringify(copy.biometricAccessReason)}},function(ok){
+        if(!ok){bioBtn.textContent=${JSON.stringify(copy.biometricAccessDenied)};bioBtn.disabled=true}
       });
     }
   });
@@ -700,15 +706,15 @@ function initBio(){
 initBio();
 
 document.getElementById("bio").addEventListener("click",function(){
-  if(!initData){show("当前验证环境无效，请回到 Telegram 重新打开",false);return}
-  if(!bm||!bm.isInited||!bm.isBiometricAvailable){show("当前环境不支持生物识别，请使用 Turnstile",false);return}
-  bm.authenticate({reason:"验证身份以加入群组"},function(ok){
-    if(!ok){show("生物识别验证未通过",false);return}
-    show("正在提交验证...",true);
+  if(!initData){show(${JSON.stringify(copy.invalidEnvironment)},false);return}
+  if(!bm||!bm.isInited||!bm.isBiometricAvailable){show(${JSON.stringify(copy.biometricUseTurnstile)},false);return}
+  bm.authenticate({reason:${JSON.stringify(copy.biometricAuthenticateReason)}},function(ok){
+    if(!ok){show(${JSON.stringify(copy.biometricFailed)},false);return}
+    show(${JSON.stringify(copy.submittingVerification)},true);
     fetch(O+"/api/verify/biometric",{method:"POST",headers:{"content-type":"application/json"},body:JSON.stringify({token:T,initData:initData})})
     .then(function(r){return r.json()})
-    .then(function(d){if(d.ok){done()}else{show(d.error||"验证失败",false)}})
-    .catch(function(e){show("网络错误："+e.message,false)});
+    .then(function(d){if(d.ok){done()}else{show(d.error||${JSON.stringify(copy.verificationFailed)},false)}})
+    .catch(function(e){show(${JSON.stringify(copy.networkErrorPrefix)}+e.message,false)});
   });
 });
 </script>
@@ -716,8 +722,81 @@ document.getElementById("bio").addEventListener("click",function(){
 </html>`;
 }
 
-function renderStatusPage(message: string): string {
-  return `<!doctype html><html lang="zh-CN"><head><meta charset="utf-8" /><meta name="viewport" content="width=device-width,initial-scale=1" /><title>验证状态</title><style>body{font-family:system-ui,sans-serif;background:#0f172a;color:#e2e8f0;display:grid;place-items:center;min-height:100vh;margin:0}.box{padding:24px 28px;border-radius:18px;background:#111827;border:1px solid rgba(255,255,255,.08);max-width:420px}</style></head><body><div class="box">${escapeHtml(message)}</div></body></html>`;
+function renderStatusPage(message: string, locale: Locale): string {
+  const copy = getCopy(locale);
+  return `<!doctype html><html lang="${locale === "zh" ? "zh-CN" : "en"}"><head><meta charset="utf-8" /><meta name="viewport" content="width=device-width,initial-scale=1" /><title>${escapeHtml(copy.statusPageTitle)}</title><style>body{font-family:system-ui,sans-serif;background:#0f172a;color:#e2e8f0;display:grid;place-items:center;min-height:100vh;margin:0}.box{padding:24px 28px;border-radius:18px;background:#111827;border:1px solid rgba(255,255,255,.08);max-width:420px}</style></head><body><div class="box">${escapeHtml(message)}</div></body></html>`;
+}
+
+function detectLocale(languageCode?: string): Locale {
+  return languageCode?.toLowerCase().startsWith("zh") ? "zh" : "en";
+}
+
+function t(locale: Locale, key: "invalidLink" | "expiredLink"): string {
+  return getCopy(locale)[key];
+}
+
+function getCopy(locale: Locale) {
+  if (locale === "zh") {
+    return {
+      pageTitle: "入群验证",
+      statusPageTitle: "验证状态",
+      invalidLink: "链接无效或已失效。",
+      expiredLink: "验证已超时，请重新申请入群。",
+      openVerification: "打开验证中心",
+      prompt: (chatTitle: string) => `你申请加入《${chatTitle}》需要做一次验证。\n请在 10 分钟内点击下方按钮，在 Telegram 小程序里任选一种方式完成：\n1. Cloudflare Turnstile\n2. 系统生物识别\n\n验证完成后会自动放行入群申请。`,
+      headerTitle: (displayName: string, chatTitle: string) => `${displayName} 申请加入 ${chatTitle}`,
+      headerSubtitle: "请完成一次简短验证后继续",
+      turnstileLabel: "方式一：Turnstile 人机验证",
+      biometricLabel: "方式二：系统生物识别",
+      startVerification: "开始验证",
+      success: "验证通过，5 秒后自动关闭",
+      close: "关闭",
+      invalidEnvironment: "当前验证环境无效，请回到 Telegram 重新打开",
+      verifying: "正在验证...",
+      verificationFailed: "验证失败",
+      networkErrorPrefix: "网络错误：",
+      biometricUnavailable: "当前环境不支持生物识别",
+      biometricInitFailed: "生物识别初始化失败",
+      faceId: "Face ID 验证",
+      fingerprint: "指纹验证",
+      biometricAccessReason: "用于入群身份验证",
+      biometricAccessDenied: "生物识别权限被拒绝",
+      biometricUseTurnstile: "当前环境不支持生物识别，请使用 Turnstile",
+      biometricAuthenticateReason: "验证身份以加入群组",
+      biometricFailed: "生物识别验证未通过",
+      submittingVerification: "正在提交验证...",
+    };
+  }
+
+  return {
+    pageTitle: "Join Verification",
+    statusPageTitle: "Verification Status",
+    invalidLink: "This link is invalid or has expired.",
+    expiredLink: "Verification timed out. Please submit your join request again.",
+    openVerification: "Open Verification",
+    prompt: (chatTitle: string) => `Your request to join \"${chatTitle}\" requires verification.\nPlease tap the button below and complete one of these methods in Telegram within 10 minutes:\n1. Cloudflare Turnstile\n2. Biometric verification\n\nYour join request will be approved automatically after verification.`,
+    headerTitle: (displayName: string, chatTitle: string) => `${displayName} requested to join ${chatTitle}`,
+    headerSubtitle: "Please complete a short verification to continue",
+    turnstileLabel: "Option 1: Turnstile verification",
+    biometricLabel: "Option 2: Biometric verification",
+    startVerification: "Start Verification",
+    success: "Verification complete. This page will close in 5 seconds.",
+    close: "Close",
+    invalidEnvironment: "Invalid verification environment. Please reopen this page from Telegram.",
+    verifying: "Verifying...",
+    verificationFailed: "Verification failed",
+    networkErrorPrefix: "Network error: ",
+    biometricUnavailable: "Biometric verification is not available in this environment",
+    biometricInitFailed: "Biometric initialization failed",
+    faceId: "Face ID Verification",
+    fingerprint: "Fingerprint Verification",
+    biometricAccessReason: "Used to verify your identity for group access",
+    biometricAccessDenied: "Biometric permission was denied",
+    biometricUseTurnstile: "Biometric verification is unavailable here. Please use Turnstile.",
+    biometricAuthenticateReason: "Verify your identity to join the group",
+    biometricFailed: "Biometric verification failed",
+    submittingVerification: "Submitting verification...",
+  };
 }
 
 function getVerificationOrigin(env: Env, request: Request): string {