diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04fabdf..6e1c460 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.5.9] - 2026-03-25
+
+### 🐛 Fixed
+- **适配器**
+  - 尝试修复同实例多窗口时出现点击超时的问题
+  - 修复 Gemini 文本适配器不选择模型的问题
+  - 修正 Gemini 文本适配器的模型 ID
+
 ## [3.5.8] - 2026-03-22
 
 ### ✨ Added
diff --git a/src/backend/adapter/gemini_text.js b/src/backend/adapter/gemini_text.js
index 2daa3b4..9f5e38c 100644
--- a/src/backend/adapter/gemini_text.js
+++ b/src/backend/adapter/gemini_text.js
@@ -87,8 +87,8 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
                 await page.keyboard.press('Enter');
                 await sleep(300, 500);
 
-                // 获取所有 menuitemradio 选项的文本
-                const menuItemsLocator = page.getByRole('menuitemradio');
+                // 获取所有 menuitem 选项的文本
+                const menuItemsLocator = page.getByRole('menuitem');
                 const menuItemsCount = await menuItemsLocator.count();
 
                 if (menuItemsCount === 0) {
@@ -107,16 +107,16 @@ async function generate(context, prompt, imgPaths, modelId, meta = {}) {
 
                     if (hasPro) {
                         // 有 Pro 选项的情况
-                        if (modelId === 'gemini-3-pro' || modelId === 'gemini-exp-1206') {
+                        if (modelId === 'gemini-3.1-pro') {
                             targetPrefix = 'Pro';
-                        } else if (modelId === 'gemini-3-flash' || modelId === 'gemini-2.0-flash-exp') {
+                        } else if (modelId === 'gemini-3.1-flash-thinking') {
                             targetPrefix = 'Thinking';
                         } else {
                             targetPrefix = 'Fast';
                         }
                     } else {
                         // 没有 Pro 选项的情况
-                        if (modelId === 'gemini-3-pro' || modelId === 'gemini-exp-1206') {
+                        if (modelId === 'gemini-3.1-pro' || modelId === 'gemini-3.1-flash-thinking') {
                             targetPrefix = 'Thinking';
                         } else {
                             targetPrefix = 'Fast';
@@ -214,10 +214,9 @@ export const manifest = {
     },
 
     models: [
-        { id: 'gemini-2.0-flash-exp', imagePolicy: 'optional', type: 'text' },
-        { id: 'gemini-exp-1206', imagePolicy: 'optional', type: 'text' },
-        { id: 'gemini-3-pro', imagePolicy: 'optional', type: 'text' },
-        { id: 'gemini-3-flash', imagePolicy: 'optional', type: 'text' }
+        { id: 'gemini-3.1-flash', imagePolicy: 'optional', type: 'text' },
+        { id: 'gemini-3.1-flash-thinking', imagePolicy: 'optional', type: 'text' },
+        { id: 'gemini-3.1-pro', imagePolicy: 'optional', type: 'text' }
     ],
 
     navigationHandlers: [],
diff --git a/src/backend/pool/PoolManager.js b/src/backend/pool/PoolManager.js
index 8f51da3..ca8e737 100644
--- a/src/backend/pool/PoolManager.js
+++ b/src/backend/pool/PoolManager.js
@@ -108,6 +108,8 @@ export class PoolManager {
                     // 建立共享关系：设置所有者引用，并添加到所有者的共享列表
                     worker._browserOwner = existing.ownerWorker;
                     existing.ownerWorker._sharedWorkers.push(worker);
+                    // 共享同一把浏览器互斥锁
+                    worker._browserMutex = existing.ownerWorker._browserMutex;
                 } else {
                     await worker.init();
                     browserMap.set(worker.userDataDir, {
diff --git a/src/backend/pool/Worker.js b/src/backend/pool/Worker.js
index 88cd714..300a39a 100644
--- a/src/backend/pool/Worker.js
+++ b/src/backend/pool/Worker.js
@@ -8,6 +8,7 @@ import { logger } from '../../utils/logger.js';
 import { initBrowserBase, createCursor } from '../engine/launcher.js';
 import { registry } from '../registry.js';
 import { tryGotoWithCheck } from '../utils/page.js';
+import { AsyncMutex } from '../../utils/asyncMutex.js';
 
 /**
  * Worker 类 - 封装单个浏览器实例
@@ -40,6 +41,9 @@ export class Worker {
         this._isBrowserOwner = false;  // 是否是浏览器的所有者（负责重启）
         this._browserOwner = null;     // 如果是共享者，指向所有者 Worker
         this._sharedWorkers = [];      // 如果是所有者，保存共享该浏览器的 Worker 列表
+
+        // 浏览器操作互斥锁（同一浏览器实例的 Worker 共享同一把锁）
+        this._browserMutex = new AsyncMutex();
     }
 
     /**
@@ -478,12 +482,18 @@ export class Worker {
             userDataDir: this.userDataDir
         };
 
+        // 获取浏览器互斥锁（防止同一浏览器实例的多个 Worker 并发操作鼠标）
+        const releaseLock = await this._browserMutex.acquire();
+        logger.debug('工作池', `[${this.name}] 已获取浏览器锁`, meta);
+
         this.busyCount++;
         try {
             // 传递原始 modelId，由适配器自己解析
             return await adapter.generate(subContext, prompt, paths, modelId, meta);
         } finally {
             this.busyCount--;
+            releaseLock();
+            logger.debug('工作池', `[${this.name}] 已释放浏览器锁`, meta);
         }
     }
 
diff --git a/src/utils/asyncMutex.js b/src/utils/asyncMutex.js
new file mode 100644
index 0000000..4baa5d9
--- /dev/null
+++ b/src/utils/asyncMutex.js
@@ -0,0 +1,34 @@
+/**
+ * @fileoverview 轻量异步互斥锁
+ * @description 保证同一时刻只有一个 async 任务持有锁，用于防止同一浏览器实例的多个 Worker 并发操作鼠标。
+ */
+
+export class AsyncMutex {
+    constructor() {
+        this._queue = [];
+        this._locked = false;
+    }
+
+    /**
+     * 获取锁，返回释放函数
+     * @returns {Promise<() => void>}
+     */
+    acquire() {
+        return new Promise(resolve => {
+            const tryAcquire = () => {
+                if (!this._locked) {
+                    this._locked = true;
+                    resolve(() => {
+                        this._locked = false;
+                        if (this._queue.length > 0) {
+                            this._queue.shift()();
+                        }
+                    });
+                } else {
+                    this._queue.push(tryAcquire);
+                }
+            };
+            tryAcquire();
+        });
+    }
+}