diff --git a/src/clis/bilibili/subtitle.ts b/src/clis/bilibili/subtitle.ts
index 742a499..c50f737 100644
--- a/src/clis/bilibili/subtitle.ts
+++ b/src/clis/bilibili/subtitle.ts
@@ -9,6 +9,7 @@ cli({
   strategy: Strategy.COOKIE,
   args: [
     { name: 'bvid', required: true },
+    { name: 'lang', required: false, help: '字幕语言代码 (如 zh-CN, en-US, ai-zh)，默认取第一个' },
   ],
   columns: ['index', 'from', 'to', 'content'],
   func: async (page: IPage | null, kwargs: any) => {
@@ -42,18 +43,23 @@ cli({
       throw new Error('此视频没有发现外挂或智能字幕。');
     }
 
-    const firstSubUrl = subtitles[0].subtitle_url;
-    if (!firstSubUrl || firstSubUrl === '') {
+    // 4. 选择目标字幕语言
+    const target = kwargs.lang
+      ? subtitles.find((s: any) => s.lan === kwargs.lang) || subtitles[0]
+      : subtitles[0];
+
+    const targetSubUrl = target.subtitle_url;
+    if (!targetSubUrl || targetSubUrl === '') {
       throw new Error('[风控拦截/未登录] 获取到的 subtitle_url 为空！请确保 CLI 已成功登录且风控未封锁此账号。');
     }
 
-    const finalUrl = firstSubUrl.startsWith('//') ? 'https:' + firstSubUrl : firstSubUrl;
+    const finalUrl = targetSubUrl.startsWith('//') ? 'https:' + targetSubUrl : targetSubUrl;
 
 
-    // 4. 解析并拉取 CDN 的 JSON 文件
+    // 5. 解析并拉取 CDN 的 JSON 文件
     const fetchJs = `
       (async () => {
-         const url = '${finalUrl}';
+         const url = ${JSON.stringify(finalUrl)};
          const res = await fetch(url);
          const text = await res.text();
          
@@ -75,8 +81,7 @@ cli({
     const items = await page.evaluate(fetchJs);
 
     if (items?.error) {
-      console.error("[DEBUG] Subtitle Parse Error:", items);
-      throw new Error(`字幕获取失败: ${items.error}`);
+      throw new Error(`字幕获取失败: ${items.error}${items.text ? ' — ' + items.text : ''}`);
     }
 
     const finalItems = items?.data || [];
@@ -84,7 +89,7 @@ cli({
       throw new Error('解析到的字幕列表对象不符合数组格式');
     }
 
-    // 4. 数据映射
+    // 6. 数据映射
     return finalItems.map((item: any, idx: number) => ({
       index: idx + 1,
       from: Number(item.from || 0).toFixed(2) + 's',
diff --git a/src/explore.ts b/src/explore.ts
index ea5ae21..caef897 100644
--- a/src/explore.ts
+++ b/src/explore.ts
@@ -184,6 +184,8 @@ function scoreEndpoint(ep: { contentType: string; responseAnalysis: any; pattern
   if (ep.hasPaginationParam) s += 2;
   if (ep.hasLimitParam) s += 2;
   if (ep.status === 200) s += 2;
+  // Anti-Bot Empty Value Detection: penalize JSON endpoints returning empty data
+  if (ep.responseAnalysis && ep.responseAnalysis.itemCount === 0 && ep.contentType.includes('json')) s -= 3;
   return s;
 }
 
@@ -327,12 +329,25 @@ export async function exploreUrl(
       // Step 2.5: Interactive Fuzzing (if requested)
       if (opts.auto) {
          try {
-           console.log("🤖 [Explore] Auto-fuzzing interactions enabled. Simulating clicks...");
+           // First: targeted clicks by label (e.g. "字幕", "CC", "评论")
+           if (opts.clickLabels?.length) {
+             for (const label of opts.clickLabels) {
+               const safeLabel = label.replace(/'/g, "\\'");
+               await page.evaluate(`
+                 (() => {
+                   const el = [...document.querySelectorAll('button, [role="button"], [role="tab"], a, span')]
+                     .find(e => e.textContent && e.textContent.trim().includes('${safeLabel}'));
+                   if (el) el.click();
+                 })()
+               `);
+               await page.wait(1);
+             }
+           }
+           // Then: blind fuzzing on generic interactive elements
            const clicks = await page.evaluate(INTERACT_FUZZ_JS);
-           console.log(`🤖 [Explore] Performed ${clicks} simulated clicks.`);
            await page.wait(2); // wait for XHRs to settle
          } catch (e) {
-           console.error("🤖 [Explore] Fuzzing failed:", e);
+           // fuzzing is best-effort, don't fail the whole explore
          }
       }
 
@@ -419,11 +434,6 @@ export async function exploreUrl(
         args.push({ name: 'limit', type: 'int', required: false, default: 20 });
         if (ep.hasPaginationParam) args.push({ name: 'page', type: 'int', required: false, default: 1 });
 
-        // Improve scoring for JSON endpoints that return empty arrays/objects (Anti-Bot Empty Value Detection)
-        if (ep.score >= 5 && ep.responseAnalysis?.itemCount === 0 && ep.contentType.includes('json')) {
-            ep.score -= 2; // Penalize empty drops 
-        }
-
         // Link store actions to capabilities when store-action strategy is recommended
         const epStrategy = inferStrategy(ep.authIndicators);
         let storeHint: { store: string; action: string } | undefined;
diff --git a/test_subtitle.ts b/test_subtitle.ts
deleted file mode 100644
index 9f57ca8..0000000
--- a/test_subtitle.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-import { chromium } from 'playwright';
-
-async function main() {
-  const browser = await chromium.launch({ headless: true });
-  const page = await browser.newPage();
-  const apis: string[] = [];
-
-  page.on('response', async (res) => {
-    const url = res.url();
-    if (url.includes('subtitle') || url.includes('player/v2') || url.includes('x/player/wbi/v2')) {
-        console.log("Found subtitle API candidate:", url);
-    }
-  });
-
-  console.log("Navigating to video...");
-  await page.goto('https://www.bilibili.com/video/BV1K3411r7F9');
-  await page.waitForTimeout(5000);
-  
-  // Try to find subtitle info in __INITIAL_STATE__
-  const initialState = await page.evaluate(() => {
-    return (window as any).__INITIAL_STATE__;
-  });
-  
-  if (initialState) {
-    console.log("Found __INITIAL_STATE__ exists!");
-    // check if there's bvid or aid
-    console.log("BVID:", initialState.bvid);
-    console.log("AID:", initialState.aid);
-  }
-
-  await browser.close();
-}
-main();