diff --git a/lib/lmarena.js b/lib/lmarena.js
index d1bd23e..ede3024 100644
--- a/lib/lmarena.js
+++ b/lib/lmarena.js
@@ -2,6 +2,7 @@ import puppeteer from 'puppeteer';
 import fs from 'fs';
 import path from 'path';
 import { fileURLToPath } from 'url';
+import { anonymizeProxy, closeAnonymizedProxy } from 'proxy-chain';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
@@ -285,13 +286,32 @@ async function initBrowser(config) {
     }
 
     // 4. 代理配置
+    let proxyUrlForChrome = null;
     if (chromeConfig.proxy && chromeConfig.proxy.enable) {
-        const { type, host, port } = chromeConfig.proxy;
-        const proxyUrl = type === 'socks5' ? `socks5://${host}:${port}` : `${host}:${port}`;
-        args.push(`--proxy-server=${proxyUrl}`);
-        // 禁用 QUIC (HTTP3) 以确保代理兼容性
-        args.push('--disable-quic');
-        console.log(`>>> [Browser] 代理配置: ${type}://${host}:${port}`);
+        const { type, host, port, user, passwd } = chromeConfig.proxy;
+
+        // 特殊处理 SOCKS5 + Auth (Chrome 原生不支持)
+        if (type === 'socks5' && user && passwd) {
+            try {
+                const upstreamUrl = `socks5://${user}:${passwd}@${host}:${port}`;
+                console.log(`>>> [Browser] 检测到 SOCKS5 认证代理，正在创建本地桥接...`);
+                // 创建本地中间代理 (无认证 -> 有认证)
+                proxyUrlForChrome = await anonymizeProxy(upstreamUrl);
+                console.log(`>>> [Browser] 本地桥接已建立: ${proxyUrlForChrome} -> ${host}:${port}`);
+
+                args.push(`--proxy-server=${proxyUrlForChrome}`);
+                args.push('--disable-quic');
+            } catch (e) {
+                console.error('>>> [Error] 代理桥接创建失败:', e);
+                throw e;
+            }
+        } else {
+            // 常规 HTTP 代理或无认证 SOCKS5
+            const proxyUrl = type === 'socks5' ? `socks5://${host}:${port}` : `${host}:${port}`;
+            args.push(`--proxy-server=${proxyUrl}`);
+            args.push('--disable-quic');
+            console.log(`>>> [Browser] 代理配置: ${type}://${host}:${port}`);
+        }
     }
 
     const browser = await puppeteer.launch({
@@ -307,13 +327,13 @@ async function initBrowser(config) {
     const pages = await browser.pages();
     const page = pages[0];
 
-    // 5. 代理认证
-    if (chromeConfig.proxy && chromeConfig.proxy.enable && chromeConfig.proxy.user) {
+    // 5. 代理认证 (仅当未使用 proxy-chain 桥接时)
+    if (chromeConfig.proxy && chromeConfig.proxy.enable && chromeConfig.proxy.user && !proxyUrlForChrome) {
         await page.authenticate({
             username: chromeConfig.proxy.user,
             password: chromeConfig.proxy.passwd
         });
-        console.log('>>> [Browser] 代理认证: 已设置');
+        console.log('>>> [Browser] 代理认证: 已设置 (HTTP Basic Auth)');
     }
 
     // 隐藏 WebDriver 特征
@@ -359,6 +379,18 @@ async function initBrowser(config) {
 
     console.log('>>> [Browser] 浏览器初始化完成，系统就绪');
 
+    // 注册清理钩子：浏览器关闭时关闭代理服务器
+    if (proxyUrlForChrome) {
+        browser.on('disconnected', async () => {
+            console.log('>>> [Browser] 浏览器断开，正在清理代理桥接...');
+            try {
+                await closeAnonymizedProxy(proxyUrlForChrome, true);
+            } catch (e) {
+                console.error('>>> [Warn] 代理清理失败:', e.message);
+            }
+        });
+    }
+
     return { browser, page, client, width, height };
 }
 
diff --git a/package.json b/package.json
index 4814efd..3492d90 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
 	"dependencies": {
 		"got-scraping": "^4.1.2",
 		"js-yaml": "^4.1.1",
+		"proxy-chain": "^2.6.0",
 		"puppeteer": "^24.31.0",
 		"sharp": "^0.34.5"
 	}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0b5b868..0a84a0a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -14,6 +14,9 @@ importers:
       js-yaml:
         specifier: ^4.1.1
         version: 4.1.1
+      proxy-chain:
+        specifier: ^2.6.0
+        version: 2.6.0
       puppeteer:
         specifier: ^24.31.0
         version: 24.31.0
@@ -610,6 +613,10 @@ packages:
     resolution: {integrity: sha512-TmatMXdr2KlRiA2CyDu8GqR8EjahTG3aY3nXjdzFyoZbmB8hrBsTyMezhULIXKnC0jpfjlmiZ3+EaCzoInSu/A==}
     engines: {node: '>= 14'}
 
+  proxy-chain@2.6.0:
+    resolution: {integrity: sha512-+NpVKSk68j8sQJG2tBbFuJxMzKTlqeCXXFbqvlyiFhnmxdcYJSv4XZzUSIfwIUwR3D0T8fEJqrA4C7yykU40Pw==}
+    engines: {node: '>=14'}
+
   proxy-from-env@1.1.0:
     resolution: {integrity: sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==}
 
@@ -1300,6 +1307,14 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  proxy-chain@2.6.0:
+    dependencies:
+      socks: 2.8.7
+      socks-proxy-agent: 8.0.5
+      tslib: 2.8.1
+    transitivePeerDependencies:
+      - supports-color
+
   proxy-from-env@1.1.0: {}
 
   pump@3.0.3: