diff --git a/internal/providers/geminiweb/browser_manager.go b/internal/providers/geminiweb/browser_manager.go
new file mode 100644
index 0000000..3cff6f7
--- /dev/null
+++ b/internal/providers/geminiweb/browser_manager.go
@@ -0,0 +1,173 @@
+package geminiweb
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync"
+
+	"github.com/go-rod/rod"
+	"github.com/go-rod/rod/lib/launcher"
+	"github.com/go-rod/rod/lib/proto"
+)
+
+// BrowserManager 管理瀏覽器實例的生命週期
+type BrowserManager struct {
+	mu           sync.Mutex
+	browser      *rod.Browser
+	userDataDir  string
+	page         *rod.Page
+	visible      bool
+	isRunning    bool
+	currentModel string
+}
+
+var (
+	globalManager *BrowserManager
+	globalMu      sync.Mutex
+)
+
+// GetBrowserManager 獲取全域瀏覽器管理器（單例）
+func GetBrowserManager(userDataDir string, visible bool) (*BrowserManager, error) {
+	globalMu.Lock()
+	defer globalMu.Unlock()
+
+	if globalManager != nil {
+		return globalManager, nil
+	}
+
+	manager, err := NewBrowserManager(userDataDir, visible)
+	if err != nil {
+		return nil, err
+	}
+
+	globalManager = manager
+	return globalManager, nil
+}
+
+// NewBrowserManager 建立新的瀏覽器管理器
+func NewBrowserManager(userDataDir string, visible bool) (*BrowserManager, error) {
+	cleanLockFiles(userDataDir)
+
+	if err := os.MkdirAll(userDataDir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create user data dir: %w", err)
+	}
+
+	return &BrowserManager{
+		userDataDir: userDataDir,
+		visible:     visible,
+	}, nil
+}
+
+// cleanLockFiles 清理 Chrome 的殘留鎖檔案
+func cleanLockFiles(userDataDir string) {
+	lockFiles := []string{
+		"SingletonLock",
+		"SingletonCookie",
+		"SingletonSocket",
+		"Default/SingletonLock",
+		"Default/SingletonCookie",
+		"Default/SingletonSocket",
+	}
+
+	for _, file := range lockFiles {
+		path := filepath.Join(userDataDir, file)
+		os.Remove(path)
+	}
+}
+
+// Launch 啟動瀏覽器（如果尚未啟動）
+func (m *BrowserManager) Launch() error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if m.isRunning && m.browser != nil {
+		return nil
+	}
+
+	l := launcher.New()
+
+	if m.visible {
+		l = l.Headless(false)
+	} else {
+		l = l.Headless(true)
+	}
+
+	l = l.UserDataDir(m.userDataDir)
+
+	url, err := l.Launch()
+	if err != nil {
+		return fmt.Errorf("failed to launch browser: %w", err)
+	}
+
+	b := rod.New().ControlURL(url)
+	if err := b.Connect(); err != nil {
+		return fmt.Errorf("failed to connect browser: %w", err)
+	}
+
+	m.browser = b
+
+	page, err := b.Page(proto.TargetCreateTarget{URL: "about:blank"})
+	if err != nil {
+		_ = b.Close()
+		return fmt.Errorf("failed to create page: %w", err)
+	}
+
+	m.page = page
+	m.isRunning = true
+
+	return nil
+}
+
+// GetPage 獲取頁面
+func (m *BrowserManager) GetPage() (*rod.Page, error) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if !m.isRunning || m.browser == nil {
+		return nil, fmt.Errorf("browser not running")
+	}
+
+	return m.page, nil
+}
+
+// Close 關閉瀏覽器
+func (m *BrowserManager) Close() error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if !m.isRunning {
+		return nil
+	}
+
+	var err error
+	if m.browser != nil {
+		err = m.browser.Close()
+		m.browser = nil
+	}
+
+	m.page = nil
+	m.isRunning = false
+	return err
+}
+
+// IsRunning 檢查瀏覽器是否正在運行
+func (m *BrowserManager) IsRunning() bool {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.isRunning
+}
+
+// SetCurrentModel 設定當前模型
+func (m *BrowserManager) SetCurrentModel(model string) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.currentModel = model
+}
+
+// GetCurrentModel 獲取當前模型
+func (m *BrowserManager) GetCurrentModel() string {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.currentModel
+}
diff --git a/internal/providers/geminiweb/page.go b/internal/providers/geminiweb/page.go
index 91a2c1a..56c4925 100644
--- a/internal/providers/geminiweb/page.go
+++ b/internal/providers/geminiweb/page.go
@@ -7,308 +7,200 @@ import (
 	"time"
 
 	"github.com/go-rod/rod"
-	"github.com/go-rod/rod/lib/proto"
 )
 
 const geminiURL = "https://gemini.google.com/app"
 
-var modelSelectors = map[string]string{
-	"gemini-2.0-flash":        "Flash",
-	"gemini-2.5-pro":          "Pro",
-	"gemini-2.5-pro-thinking": "Thinking",
-}
-
-func NormalizeModel(model string) string {
-	if strings.HasPrefix(model, "gemini-") {
-		return model
-	}
-	return "gemini-" + model
-}
-
-func GetModelDisplayName(model string) string {
-	if name, ok := modelSelectors[model]; ok {
-		return name
-	}
-	return "Flash"
+// 輸入框選擇器（依優先順序）
+var inputSelectors = []string{
+	".ProseMirror",
+	"rich-textarea",
+	"div[role='textbox'][contenteditable='true']",
+	"div[contenteditable='true']",
+	"textarea",
 }
 
+// NavigateToGemini 導航到 Gemini
 func NavigateToGemini(page *rod.Page) error {
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
 	if err := page.Context(ctx).Navigate(geminiURL); err != nil {
-		return fmt.Errorf("failed to navigate to gemini: %w", err)
+		return fmt.Errorf("failed to navigate: %w", err)
 	}
 	return page.Context(ctx).WaitLoad()
 }
 
+// IsLoggedIn 檢查是否已登入
 func IsLoggedIn(page *rod.Page) bool {
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 	defer cancel()
 
-	// 嘗試多種可能的登入狀態指示器
-	selectors := []string{
-		`textarea`,
-		`[contenteditable="true"]`,
-		`[aria-label*="chat" i]`,
-		`button[aria-label*="new" i]`,
-	}
-
-	for _, sel := range selectors {
-		_, err := page.Context(ctx).Element(sel)
-		if err == nil {
+	for _, sel := range inputSelectors {
+		if _, err := page.Context(ctx).Element(sel); err == nil {
 			return true
 		}
 	}
 	return false
 }
 
+// SelectModel 選擇模型（可選）
 func SelectModel(page *rod.Page, model string) error {
-	displayName := GetModelDisplayName(model)
+	fmt.Printf("[GeminiWeb] Model selection skipped (using current model)\n")
+	return nil
+}
 
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+// TypeInput 在輸入框中輸入文字
+func TypeInput(page *rod.Page, text string) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
-	// 嘗試多種可能的模型選擇器選擇器
-	selectors := []string{
-		`button[aria-label*="model" i]`,
-		`button[aria-label*="Model" i]`,
-		`[data-test-id="model-selector"]`,
-		`button[aria-haspopup="listbox"]`,
-		`[class*="model-selector"]`,
-		`[class*="model"] button`,
-	}
-
-	var modelSwitcher *rod.Element
+	// 1. 尋找輸入框
+	var inputEl *rod.Element
 	var err error
-	for _, sel := range selectors {
-		modelSwitcher, err = page.Context(ctx).Element(sel)
+	for _, sel := range inputSelectors {
+		inputEl, err = page.Context(ctx).Element(sel)
 		if err == nil {
 			break
 		}
 	}
 
 	if err != nil {
-		// 如果找不到模型選擇器，可能是頁面已經在正確的模型上，或是 Gemini 的 UI 不同
-		fmt.Printf("Warning: model selector not found, using current model (requested: %s)\n", displayName)
-		return nil
+		return fmt.Errorf("input field not found")
 	}
 
-	// 獲取目前的模型文字
-	currentText, _ := modelSwitcher.Text()
-	if currentText != "" && strings.Contains(strings.ToLower(currentText), strings.ToLower(displayName)) {
-		// 已經在正確的模型上
-		return nil
+	// 2. Focus 輸入框
+	if err := inputEl.Focus(); err != nil {
+		return fmt.Errorf("failed to focus input: %w", err)
 	}
 
-	if err := modelSwitcher.Click(proto.InputMouseButtonLeft, 1); err != nil {
-		return fmt.Errorf("failed to click model selector: %w", err)
+	time.Sleep(100 * time.Millisecond)
+
+	// 3. 使用 Input 方法（Rod 的正確方式）
+	if err := inputEl.Input(text); err != nil {
+		return fmt.Errorf("failed to input text: %w", err)
 	}
 
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(100 * time.Millisecond)
 
-	// 嘗試多種可能的選項選擇器
-	optionSelectors := []string{
-		fmt.Sprintf(`[aria-label*="%s" i]`, displayName),
-		fmt.Sprintf(`[data-value*="%s" i]`, displayName),
-		fmt.Sprintf(`text=%s`, displayName),
-		`[role="option"]`,
-	}
+	// 4. 觸發 Enter 觸發事件
+	_ = inputEl.SelectAllText()
+	_ = page.Keyboard.Press('\r') // Enter key
 
-	var option *rod.Element
-	for _, sel := range optionSelectors {
-		option, err = page.Context(ctx).Element(sel)
-		if err == nil {
-			break
-		}
-	}
-
-	if err != nil {
-		fmt.Printf("Warning: model option %s not found, using current model\n", displayName)
-		return nil
-	}
-
-	return option.Click(proto.InputMouseButtonLeft, 1)
+	return nil
 }
 
-func SendPrompt(page *rod.Page, prompt string) error {
-	fmt.Printf("[GeminiWeb] Finding input field...\n")
-
-	// 嘗試多種可能的輸入框選擇器
-	selectors := []string{
-		`textarea`,
-		`[contenteditable="true"]`,
-		`[role="textbox"]`,
-		`div[contenteditable="true"]`,
-		`div[role="textbox"]`,
-		`.ql-editor`,
-		`rich-textarea`,
+// ClickSend 發送訊息
+func ClickSend(page *rod.Page) error {
+	// 方法 1: 按 Enter
+	if err := page.Keyboard.Press('\r'); err != nil {
+		return fmt.Errorf("failed to press Enter: %w", err)
 	}
 
-	var textarea *rod.Element
-	var err error
-	for _, sel := range selectors {
-		fmt.Printf("  Trying selector: %s\n", sel)
-		textarea, err = page.Element(sel)
-		if err == nil {
-			fmt.Printf("  Found with: %s\n", sel)
-			break
-		}
-	}
-
-	if err != nil {
-		return fmt.Errorf("input field not found after trying all selectors: %w", err)
-	}
-
-	fmt.Printf("[GeminiWeb] Typing prompt (%d chars)...\n", len(prompt))
-	if err := textarea.Input(prompt); err != nil {
-		return fmt.Errorf("failed to input prompt: %w", err)
-	}
-
-	fmt.Printf("[GeminiWeb] Finding send button...\n")
-	time.Sleep(500 * time.Millisecond)
-
-	// 嘗試多種可能的發送按鈕選擇器
-	btnSelectors := []string{
-		`button[type="submit"]`,
-		`button[aria-label*="Send" i]`,
-		`button[aria-label*="submit" i]`,
-		`button:has(svg)`,
-		`button`,
-	}
-
-	var sendBtn *rod.Element
-	for _, sel := range btnSelectors {
-		fmt.Printf("  Trying button selector: %s\n", sel)
-		sendBtn, err = page.Element(sel)
-		if err == nil {
-			// 檢查是否是發送按鈕（不是其他按鈕）
-			ariaLabel, _ := sendBtn.Attribute("aria-label")
-			text, _ := sendBtn.Text()
-			if ariaLabel != nil || text != "" {
-				fmt.Printf("  Found button with aria-label=%v text=%s\n", ariaLabel, truncate(text, 20))
-			}
-		}
-		if err == nil {
-			fmt.Printf("  Found send button with: %s\n", sel)
-			break
-		}
-	}
-
-	if err != nil {
-		// 嘗試按 Enter 鍵發送
-		fmt.Printf("[GeminiWeb] No send button found, trying Enter key...\n")
-		if err := page.Keyboard.Press('\n'); err != nil {
-			return fmt.Errorf("failed to press Enter: %w", err)
-		}
-		return nil
-	}
-
-	fmt.Printf("[GeminiWeb] Clicking send button...\n")
-	return sendBtn.Click(proto.InputMouseButtonLeft, 1)
+	time.Sleep(200 * time.Millisecond)
+	return nil
 }
 
-func truncate(s string, max int) string {
-	if len(s) <= max {
-		return s
-	}
-	return s[:max] + "..."
-}
+// WaitForReady 等待頁面空閒
+func WaitForReady(page *rod.Page) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
 
-func WaitForResponse(page *rod.Page, onChunk func(text string), onThinking func(thinking string), onComplete func()) error {
-	lastText := ""
-	lastThinking := ""
-	responseComplete := false
-
-	timeout := time.NewTimer(120 * time.Second)
-	defer timeout.Stop()
-
-	ticker := time.NewTicker(500 * time.Millisecond)
-	defer ticker.Stop()
+	fmt.Println("[GeminiWeb] Checking if page is ready...")
 
 	for {
 		select {
-		case <-timeout.C:
-			return fmt.Errorf("response timeout")
-		case <-ticker.C:
-			textChanged := false
+		case <-ctx.Done():
+			fmt.Println("[GeminiWeb] Page ready check timeout, proceeding anyway")
+			return nil
+		default:
+			time.Sleep(500 * time.Millisecond)
 
-			responseEls, err := page.Elements(`.response-text, message-content, .model-response, div[data-test-id="response"]`)
-			if err == nil && len(responseEls) > 0 {
-				for _, el := range responseEls {
-					text, _ := el.Text()
-					text = strings.TrimSpace(text)
-					if text != "" && text != lastText {
-						if strings.Contains(text, lastText) {
-							newPart := strings.TrimPrefix(text, lastText)
-							if newPart != "" {
-								onChunk(newPart)
-							}
-						} else {
-							onChunk(text)
-						}
-						lastText = text
-						textChanged = true
-					}
+			// 檢查是否有停止按鈕
+			hasStopBtn := false
+			stopBtns, _ := page.Elements("button[aria-label*='Stop'], button[aria-label*='停止']")
+			for _, btn := range stopBtns {
+				visible, _ := btn.Visible()
+				if visible {
+					hasStopBtn = true
+					break
 				}
 			}
 
-			thinkingEls, err := page.Elements(`.thinking-content, .thought-text, div[data-test-id="thinking"]`)
-			if err == nil && len(thinkingEls) > 0 {
-				for _, el := range thinkingEls {
-					thinking, _ := el.Text()
-					thinking = strings.TrimSpace(thinking)
-					if thinking != "" && thinking != lastThinking {
-						if strings.Contains(thinking, lastThinking) {
-							newPart := strings.TrimPrefix(thinking, lastThinking)
-							if newPart != "" {
-								onThinking(newPart)
-							}
-						} else {
-							onThinking(thinking)
-						}
-						lastThinking = thinking
-						textChanged = true
-					}
-				}
-			}
-
-			doneBtn, err := page.Element(`button[aria-label*="stop"], button[aria-label*="regenerate"]`)
-			if err == nil && doneBtn != nil {
-				ariaLabel, _ := doneBtn.Attribute("aria-label")
-				if ariaLabel != nil && (*ariaLabel == "Stop" || strings.Contains(*ariaLabel, "regenerate")) {
-					if !responseComplete && lastText != "" {
-						responseComplete = true
-						onComplete()
-						return nil
-					}
-				}
-			}
-
-			if !textChanged && responseComplete {
+			if !hasStopBtn {
+				fmt.Println("[GeminiWeb] Page is ready")
 				return nil
 			}
 		}
 	}
 }
 
-func IsRateLimited(page *rod.Page) bool {
-	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+// ExtractResponse 提取回應文字
+func ExtractResponse(page *rod.Page) (string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 120*time.Second)
 	defer cancel()
 
-	el, err := page.Context(ctx).Element(`[class*="rate-limit"], [class*="quota"], [data-test-id="rate-limited"]`)
-	return err == nil && el != nil
-}
+	var lastText string
+	lastUpdate := time.Now()
 
-func GetRateLimitMessage(page *rod.Page) string {
-	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-	defer cancel()
+	for {
+		select {
+		case <-ctx.Done():
+			if lastText != "" {
+				return lastText, nil
+			}
+			return "", fmt.Errorf("response timeout")
+		default:
+			time.Sleep(500 * time.Millisecond)
 
-	el, err := page.Context(ctx).Element(`[class*="rate-limit"], [class*="quota"], [class*="error-message"]`)
-	if err != nil || el == nil {
-		return ""
+			// 尋找回應文字
+			for _, sel := range responseSelectors {
+				elements, err := page.Elements(sel)
+				if err != nil || len(elements) == 0 {
+					continue
+				}
+
+				// 取得最後一個元素的文字
+				lastEl := elements[len(elements)-1]
+				text, err := lastEl.Text()
+				if err != nil {
+					continue
+				}
+
+				text = strings.TrimSpace(text)
+				if text != "" && text != lastText && len(text) > len(lastText) {
+					lastText = text
+					lastUpdate = time.Now()
+					fmt.Printf("[GeminiWeb] Response length: %d\n", len(text))
+				}
+			}
+
+			// 檢查是否已完成（2 秒內沒有新內容）
+			if time.Since(lastUpdate) > 2*time.Second && lastText != "" {
+				// 最後檢查一次是否還有停止按鈕
+				hasStopBtn := false
+				stopBtns, _ := page.Elements("button[aria-label*='Stop'], button[aria-label*='停止']")
+				for _, btn := range stopBtns {
+					visible, _ := btn.Visible()
+					if visible {
+						hasStopBtn = true
+						break
+					}
+				}
+
+				if !hasStopBtn {
+					return lastText, nil
+				}
+			}
+		}
 	}
-
-	text, _ := el.Text()
-	return strings.TrimSpace(text)
+}
+
+// 默認的回應選擇器
+var responseSelectors = []string{
+	".model-response-text",
+	".message-content",
+	".markdown",
+	".prose",
+	"model-response",
 }
diff --git a/internal/providers/geminiweb/provider.go b/internal/providers/geminiweb/provider.go
index 52b801d..257f57e 100644
--- a/internal/providers/geminiweb/provider.go
+++ b/internal/providers/geminiweb/provider.go
@@ -6,164 +6,139 @@ import (
 	"cursor-api-proxy/internal/config"
 	"fmt"
 	"os"
-	"os/signal"
-	"syscall"
+	"path/filepath"
+	"strings"
+	"sync"
 	"time"
-
-	"github.com/go-rod/rod"
 )
 
+// Provider 使用持久化瀏覽器管理器
 type Provider struct {
-	cfg  config.BridgeConfig
-	pool *SessionPool
+	cfg         config.BridgeConfig
+	managerOnce sync.Once
+	manager     *BrowserManager
+	managerErr  error
 }
 
+// NewProvider 建立新的 Provider
 func NewProvider(cfg config.BridgeConfig) *Provider {
 	return &Provider{cfg: cfg}
 }
 
+// getName 返回 Provider 名稱
 func (p *Provider) Name() string {
 	return "gemini-web"
 }
 
+// Close 關閉瀏覽器
 func (p *Provider) Close() error {
+	if p.manager != nil {
+		return p.manager.Close()
+	}
 	return nil
 }
 
-func (p *Provider) initPool() error {
-	if p.pool != nil {
-		return nil
-	}
-	pool, err := NewSessionPool(p.cfg.GeminiAccountDir, p.cfg.GeminiMaxSessions)
-	if err != nil {
-		return fmt.Errorf("failed to init session pool: %w", err)
-	}
-	p.pool = pool
-	return nil
+// getManager 獲取或初始化瀏覽器管理器（單例）
+func (p *Provider) getManager() (*BrowserManager, error) {
+	p.managerOnce.Do(func() {
+		sessionDir := p.getSessionDir()
+		p.manager, p.managerErr = GetBrowserManager(sessionDir, p.cfg.GeminiBrowserVisible)
+	})
+	return p.manager, p.managerErr
 }
 
+// getSessionDir 獲取 session 目錄
+func (p *Provider) getSessionDir() string {
+	// 使用單一 session 目錄（簡化設計）
+	return filepath.Join(p.cfg.GeminiAccountDir, "default-session")
+}
+
+// Generate 生成回應
 func (p *Provider) Generate(ctx context.Context, model string, messages []apitypes.Message, tools []apitypes.Tool, cb func(apitypes.StreamChunk)) error {
 	fmt.Printf("[GeminiWeb] Starting generation with model: %s\n", model)
 
-	if err := p.initPool(); err != nil {
-		return err
-	}
-
-	// 檢查是否有可用的已登入 session
-	session := p.pool.GetAvailable()
-	needLogin := false
-
-	if session == nil {
-		// 沒有 session，建立一個新的
-		fmt.Printf("[GeminiWeb] No existing session found, creating new session...\n")
-		var err error
-		session, err = p.pool.CreateSession(fmt.Sprintf("session-%d", time.Now().Unix()))
-		if err != nil {
-			return fmt.Errorf("failed to create session: %w", err)
-		}
-		needLogin = true
-		fmt.Printf("[GeminiWeb] Created new session: %s\n", session.Name)
-	} else {
-		fmt.Printf("[GeminiWeb] Using existing session: %s\n", session.Name)
-	}
-
-	p.pool.StartSession(session)
-	defer p.pool.EndSession(session)
-
-	// 如果沒有登入過，強制使用可見瀏覽器
-	visible := p.cfg.GeminiBrowserVisible || needLogin
-
-	browser, err := NewBrowser(visible)
+	// 1. 獲取瀏覽器管理器
+	manager, err := p.getManager()
 	if err != nil {
-		return fmt.Errorf("failed to create browser: %w", err)
-	}
-	defer browser.Close()
-
-	page, err := browser.NewPage()
-	if err != nil {
-		return fmt.Errorf("failed to create page: %w", err)
+		return fmt.Errorf("failed to get browser manager: %w", err)
 	}
 
-	// 嘗試載入 cookies
-	if session.CookieFile != "" {
-		fmt.Printf("[GeminiWeb] Loading cookies from: %s\n", session.CookieFile)
-		cookies, err := LoadCookiesFromFile(session.CookieFile)
-		if err == nil {
-			if err := SetCookiesOnPage(page, cookies); err != nil {
-				fmt.Printf("[GeminiWeb] Warning: failed to set cookies: %v\n", err)
-			} else {
-				fmt.Printf("[GeminiWeb] Loaded %d cookies\n", len(cookies))
-			}
-		} else {
-			fmt.Printf("[GeminiWeb] No existing cookies found\n")
+	// 2. 啟動瀏覽器（如果尚未啟動）
+	if !manager.IsRunning() {
+		fmt.Printf("[GeminiWeb] Launching browser...\n")
+		if err := manager.Launch(); err != nil {
+			return fmt.Errorf("failed to launch browser: %w", err)
 		}
 	}
 
-	fmt.Printf("[GeminiWeb] Navigating to Gemini...\n")
-	if err := NavigateToGemini(page); err != nil {
-		return fmt.Errorf("failed to navigate: %w", err)
+	// 3. 獲取頁面
+	page, err := manager.GetPage()
+	if err != nil {
+		return fmt.Errorf("failed to get page: %w", err)
 	}
 
-	time.Sleep(2 * time.Second)
+	// 4. 檢查當前 URL，如果不是 Gemini 則導航
+	currentURL, _ := page.Info()
+	if !strings.Contains(currentURL.URL, "gemini.google.com") {
+		fmt.Printf("[GeminiWeb] Navigating to Gemini...\n")
+		if err := NavigateToGemini(page); err != nil {
+			return fmt.Errorf("failed to navigate: %w", err)
+		}
+		time.Sleep(2 * time.Second)
+	}
 
+	// 5. 檢查登入狀態
 	fmt.Printf("[GeminiWeb] Checking login status...\n")
-	if IsLoggedIn(page) {
-		fmt.Printf("[GeminiWeb] Logged in (using saved cookies)\n")
-	} else {
-		fmt.Printf("[GeminiWeb] Not logged in - continuing without login\n")
+	if !IsLoggedIn(page) {
+		fmt.Printf("[GeminiWeb] Not logged in, continuing anyway\n")
 
-		if visible {
-			// 如果瀏覽器可見，提示使用者可以登入，但繼續執行不等待
+		if p.cfg.GeminiBrowserVisible {
 			fmt.Println("\n========================================")
 			fmt.Println("Browser is open. You can:")
-			fmt.Println("1. Log in to Gemini now (to use your account)")
+			fmt.Println("1. Log in to Gemini now")
 			fmt.Println("2. Continue without login")
-			fmt.Println("\nThe request will proceed without waiting.")
-			fmt.Println("If you log in during this session, cookies will be saved automatically.")
 			fmt.Println("========================================\n")
-
-			// 異步保存 cookies（如果使用者登入了）
-			go func() {
-				time.Sleep(30 * time.Second) // 給使用者 30 秒登入
-				if IsLoggedIn(page) {
-					cookies, err := GetPageCookies(page)
-					if err == nil {
-						SaveCookiesToFile(cookies, session.CookieFile)
-						fmt.Printf("[GeminiWeb] Saved %d cookies for future use\n", len(cookies))
-					}
-				}
-			}()
 		}
+	} else {
+		fmt.Printf("[GeminiWeb] Logged in\n")
 	}
 
-	fmt.Printf("[GeminiWeb] Selecting model: %s\n", model)
-	if err := SelectModel(page, model); err != nil {
-		return fmt.Errorf("failed to select model: %w", err)
+	// 6. 等待頁面就緒
+	if err := WaitForReady(page); err != nil {
+		fmt.Printf("[GeminiWeb] Warning: %v\n", err)
 	}
-	fmt.Printf("[GeminiWeb] Model selected\n")
-
-	time.Sleep(500 * time.Millisecond)
 
+	// 7. 建構提示詞
 	prompt := buildPromptFromMessages(messages)
-	fmt.Printf("[GeminiWeb] Sending prompt (length: %d chars)\n", len(prompt))
-	if err := SendPrompt(page, prompt); err != nil {
-		return fmt.Errorf("failed to send prompt: %w", err)
-	}
-	fmt.Printf("[GeminiWeb] Prompt sent, waiting for response...\n")
+	fmt.Printf("[GeminiWeb] Typing prompt (%d chars)...\n", len(prompt))
 
-	return WaitForResponse(page,
-		func(text string) {
-			cb(apitypes.StreamChunk{Type: apitypes.ChunkText, Text: text})
-		},
-		func(thinking string) {
-			cb(apitypes.StreamChunk{Type: apitypes.ChunkThinking, Thinking: thinking})
-		},
-		func() {
-			cb(apitypes.StreamChunk{Type: apitypes.ChunkDone, Done: true})
-		},
-	)
+	// 8. 輸入文字
+	if err := TypeInput(page, prompt); err != nil {
+		return fmt.Errorf("failed to type input: %w", err)
+	}
+
+	// 9. 發送
+	fmt.Printf("[GeminiWeb] Sending message...\n")
+	if err := ClickSend(page); err != nil {
+		return fmt.Errorf("failed to send: %w", err)
+	}
+
+	// 10. 提取回應
+	fmt.Printf("[GeminiWeb] Waiting for response...\n")
+	response, err := ExtractResponse(page)
+	if err != nil {
+		return fmt.Errorf("failed to extract response: %w", err)
+	}
+
+	// 11. 串流回調
+	cb(apitypes.StreamChunk{Type: apitypes.ChunkText, Text: response})
+	cb(apitypes.StreamChunk{Type: apitypes.ChunkDone, Done: true})
+
+	fmt.Printf("[GeminiWeb] Response complete (%d chars)\n", len(response))
+	return nil
 }
 
+// buildPromptFromMessages 從訊息列表建構提示詞
 func buildPromptFromMessages(messages []apitypes.Message) string {
 	var prompt string
 	for _, m := range messages {
@@ -179,74 +154,43 @@ func buildPromptFromMessages(messages []apitypes.Message) string {
 	return prompt
 }
 
+// RunLogin 執行登入流程（供 gemini-login 命令使用）
 func RunLogin(cfg config.BridgeConfig, sessionName string) error {
 	if sessionName == "" {
-		sessionName = fmt.Sprintf("session-%d", time.Now().Unix())
+		sessionName = "default-session"
 	}
 
-	pool, err := NewSessionPool(cfg.GeminiAccountDir, cfg.GeminiMaxSessions)
-	if err != nil {
-		return fmt.Errorf("failed to init pool: %w", err)
-	}
-
-	session, err := pool.CreateSession(sessionName)
-	if err != nil {
-		return fmt.Errorf("failed to create session: %w", err)
+	sessionDir := filepath.Join(cfg.GeminiAccountDir, sessionName)
+	if err := os.MkdirAll(sessionDir, 0755); err != nil {
+		return fmt.Errorf("failed to create session dir: %w", err)
 	}
 
 	fmt.Printf("Starting browser for login. Session: %s\n", sessionName)
+	fmt.Printf("Session directory: %s\n", sessionDir)
 	fmt.Println("Please log in to your Gemini account in the browser window.")
 	fmt.Println("Press Ctrl+C when you have completed the login...")
 
-	browser, err := NewBrowser(true)
+	manager, err := NewBrowserManager(sessionDir, true) // visible=true
 	if err != nil {
-		return fmt.Errorf("failed to create browser: %w", err)
+		return fmt.Errorf("failed to create browser manager: %w", err)
 	}
-	defer browser.Close()
 
-	page, err := browser.NewPage()
+	if err := manager.Launch(); err != nil {
+		return fmt.Errorf("failed to launch browser: %w", err)
+	}
+	defer manager.Close()
+
+	page, err := manager.GetPage()
 	if err != nil {
-		return fmt.Errorf("failed to create page: %w", err)
+		return fmt.Errorf("failed to get page: %w", err)
 	}
 
 	if err := NavigateToGemini(page); err != nil {
 		return fmt.Errorf("failed to navigate: %w", err)
 	}
 
-	sigChan := make(chan os.Signal, 1)
-	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
+	// 等待用戶手動登入...
+	// 使用 Ctrl+C 退出，瀏覽器資料會自動保存在 userDataDir
 
-	<-sigChan
-
-	cookies, err := GetPageCookies(page)
-	if err != nil {
-		return fmt.Errorf("failed to get cookies: %w", err)
-	}
-
-	if err := SaveCookiesToFile(cookies, session.CookieFile); err != nil {
-		return fmt.Errorf("failed to save cookies: %w", err)
-	}
-
-	fmt.Printf("Session saved successfully: %s\n", sessionName)
 	return nil
 }
-
-func GetPageCookies(page *rod.Page) ([]Cookie, error) {
-	cookies, err := page.Cookies([]string{})
-	if err != nil {
-		return nil, fmt.Errorf("failed to get cookies: %w", err)
-	}
-
-	var result []Cookie
-	for _, c := range cookies {
-		result = append(result, Cookie{
-			Name:     c.Name,
-			Value:    c.Value,
-			Domain:   c.Domain,
-			Path:     c.Path,
-			HTTPOnly: c.HTTPOnly,
-			Secure:   c.Secure,
-		})
-	}
-	return result, nil
-}