diff --git a/go.mod b/go.mod
index c00e366..341a00d 100644
--- a/go.mod
+++ b/go.mod
@@ -8,10 +8,14 @@ require (
 )
 
 require (
+	github.com/deckarep/golang-set/v2 v2.8.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.5 // indirect
 	github.com/go-rod/rod v0.116.2 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/playwright-community/playwright-go v0.5700.1 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/ysmood/fetchup v0.2.3 // indirect
 	github.com/ysmood/goob v0.4.0 // indirect
diff --git a/go.sum b/go.sum
index 8f3d2b9..77d212a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,15 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/deckarep/golang-set/v2 v2.8.0 h1:swm0rlPCmdWn9mESxKOjWk8hXSqoxOp+ZlfuyaAdFlQ=
+github.com/deckarep/golang-set/v2 v2.8.0/go.mod h1:VAky9rY/yGXJOLEDv3OMci+7wtDpOF4IN+y82NBOac4=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/go-jose/go-jose/v3 v3.0.5 h1:BLLJWbC4nMZOfuPVxoZIxeYsn6Nl2r1fITaJ78UQlVQ=
+github.com/go-jose/go-jose/v3 v3.0.5/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
 github.com/go-rod/rod v0.116.2 h1:A5t2Ky2A+5eD/ZJQr1EfsQSe5rms5Xof/qj296e+ZqA=
 github.com/go-rod/rod v0.116.2/go.mod h1:H+CMO9SCNc2TJ2WfrG+pKhITz57uGNYU43qYHh438Mg=
+github.com/go-stack/stack v1.8.1 h1:ntEHSVwIt7PNXNpgPmVfMrNhLtgjlmnZha2kOpuRiDw=
+github.com/go-stack/stack v1.8.1/go.mod h1:dcoOX6HbPZSZptuspn9bctJ+N/CnF5gGygcUP3XYfe4=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -12,8 +20,13 @@ github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWE
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
 github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/playwright-community/playwright-go v0.5700.1 h1:PNFb1byWqrTT720rEO0JL88C6Ju0EmUnR5deFLvtP/U=
+github.com/playwright-community/playwright-go v0.5700.1/go.mod h1:MlSn1dZrx8rszbCxY6x3qK89ZesJUYVx21B2JnkoNF0=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/ysmood/fetchup v0.2.3 h1:ulX+SonA0Vma5zUFXtv52Kzip/xe7aj4vqT5AJwQ+ZQ=
 github.com/ysmood/fetchup v0.2.3/go.mod h1:xhibcRKziSvol0H1/pj33dnKrYyI2ebIvz5cOOkYGns=
 github.com/ysmood/goob v0.4.0 h1:HsxXhyLBeGzWXnqVKtmT9qM7EuVs/XOgkX7T6r1o1AQ=
@@ -25,15 +38,55 @@ github.com/ysmood/gson v0.7.3 h1:QFkWbTH8MxyUTKPkVWAENJhxqdBa4lYTQWqZCiLG6kE=
 github.com/ysmood/gson v0.7.3/go.mod h1:3Kzs5zDl21g5F/BlLTNcuAGAYLKt2lV5G8D1zF3RNmg=
 github.com/ysmood/leakless v0.9.0 h1:qxCG5VirSBvmi3uynXFkcnLMzkphdh3xx5FtrORwDCU=
 github.com/ysmood/leakless v0.9.0/go.mod h1:R8iAXPRaG97QJwqxs74RdwzcRHT1SWCGTNqY8q0JvMQ=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
+golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
 golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
+golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
 golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
 golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 modernc.org/cc/v4 v4.27.1 h1:9W30zRlYrefrDV2JE2O8VDtJ1yPGownxciz5rrbQZis=
 modernc.org/cc/v4 v4.27.1/go.mod h1:uVtb5OGqUKpoLWhqwNQo/8LwvoiEBLvZXIQ/SmO6mL0=
 modernc.org/ccgo/v4 v4.32.0 h1:hjG66bI/kqIPX1b2yT6fr/jt+QedtP2fqojG2VrFuVw=
diff --git a/internal/providers/factory.go b/internal/providers/factory.go
index 8fd9ea5..c55fdc3 100644
--- a/internal/providers/factory.go
+++ b/internal/providers/factory.go
@@ -25,7 +25,8 @@ func NewProvider(cfg config.BridgeConfig) (Provider, error) {
 	case "cursor":
 		return cursor.NewProvider(cfg), nil
 	case "gemini-web":
-		return geminiweb.NewProvider(cfg), nil
+		// 使用新的 Playwright provider
+		return geminiweb.NewPlaywrightProvider(cfg)
 	default:
 		return nil, fmt.Errorf("unknown provider: %s", providerType)
 	}
diff --git a/internal/providers/geminiweb/playwright_provider.go b/internal/providers/geminiweb/playwright_provider.go
new file mode 100644
index 0000000..577dcaa
--- /dev/null
+++ b/internal/providers/geminiweb/playwright_provider.go
@@ -0,0 +1,392 @@
+package geminiweb
+
+import (
+	"context"
+	"cursor-api-proxy/internal/apitypes"
+	"cursor-api-proxy/internal/config"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/playwright-community/playwright-go"
+)
+
+// PlaywrightProvider 使用 Playwright 的 Gemini Provider
+type PlaywrightProvider struct {
+	cfg         config.BridgeConfig
+	pw          *playwright.Playwright
+	browser     playwright.Browser
+	context     playwright.BrowserContext
+	page        playwright.Page
+	mu          sync.Mutex
+	userDataDir string
+}
+
+var (
+	playwrightInstance *playwright.Playwright
+	playwrightOnce     sync.Once
+	playwrightErr      error
+)
+
+// NewPlaywrightProvider 建立新的 Playwright Provider
+func NewPlaywrightProvider(cfg config.BridgeConfig) (*PlaywrightProvider, error) {
+	// 確保 Playwright 已初始化（單例）
+	playwrightOnce.Do(func() {
+		playwrightInstance, playwrightErr = playwright.Run()
+		if playwrightErr != nil {
+			playwrightErr = fmt.Errorf("failed to run playwright: %w", playwrightErr)
+		}
+	})
+
+	if playwrightErr != nil {
+		return nil, playwrightErr
+	}
+
+	// 清理 Chrome 鎖檔案
+	userDataDir := filepath.Join(cfg.GeminiAccountDir, "default-session")
+	cleanLockFiles(userDataDir)
+
+	// 確保目錄存在
+	if err := os.MkdirAll(userDataDir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create user data dir: %w", err)
+	}
+
+	return &PlaywrightProvider{
+		cfg:         cfg,
+		pw:          playwrightInstance,
+		userDataDir: userDataDir,
+	}, nil
+}
+
+// getName 返回 Provider 名稱
+func (p *PlaywrightProvider) Name() string {
+	return "gemini-web"
+}
+
+// launchIfNeeded 如果需要則啟動瀏覽器
+func (p *PlaywrightProvider) launchIfNeeded() error {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	if p.context != nil && p.page != nil {
+		return nil
+	}
+
+	fmt.Println("[GeminiWeb] Launching Chromium...")
+
+	// 使用 LaunchPersistentContext（自動保存 session）
+	context, err := p.pw.Chromium.LaunchPersistentContext(p.userDataDir,
+		playwright.BrowserTypeLaunchPersistentContextOptions{
+			Headless: playwright.Bool(!p.cfg.GeminiBrowserVisible),
+			Args: []string{
+				"--no-first-run",
+				"--no-default-browser-check",
+				"--disable-background-networking",
+				"--disable-extensions",
+				"--disable-plugins",
+				"--disable-sync",
+			},
+		})
+	if err != nil {
+		return fmt.Errorf("failed to launch persistent context: %w", err)
+	}
+
+	p.context = context
+
+	// 取得或建立頁面
+	pages := context.Pages()
+	if len(pages) > 0 {
+		p.page = pages[0]
+	} else {
+		page, err := context.NewPage()
+		if err != nil {
+			_ = context.Close()
+			return fmt.Errorf("failed to create page: %w", err)
+		}
+		p.page = page
+	}
+
+	fmt.Println("[GeminiWeb] Browser launched")
+	return nil
+}
+
+// Generate 生成回應
+func (p *PlaywrightProvider) 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)
+
+	// 1. 確保瀏覽器已啟動
+	if err := p.launchIfNeeded(); err != nil {
+		return fmt.Errorf("failed to launch browser: %w", err)
+	}
+
+	// 2. 導航到 Gemini（如果需要）
+	currentURL := p.page.URL()
+	if !strings.Contains(currentURL, "gemini.google.com") {
+		fmt.Println("[GeminiWeb] Navigating to Gemini...")
+		if _, err := p.page.Goto("https://gemini.google.com/app", playwright.PageGotoOptions{
+			WaitUntil: playwright.WaitUntilStateNetworkidle,
+			Timeout:   playwright.Float(30000),
+		}); err != nil {
+			return fmt.Errorf("failed to navigate: %w", err)
+		}
+		time.Sleep(2 * time.Second)
+	}
+
+	// 3. 檢查登入狀態
+	fmt.Println("[GeminiWeb] Checking login status...")
+	loggedIn := p.isLoggedIn()
+	if !loggedIn {
+		fmt.Println("[GeminiWeb] Not logged in, continuing anyway")
+		if p.cfg.GeminiBrowserVisible {
+			fmt.Println("\n========================================")
+			fmt.Println("Browser is open. You can:")
+			fmt.Println("1. Log in to Gemini now")
+			fmt.Println("2. Continue without login")
+			fmt.Println("========================================\n")
+		}
+	} else {
+		fmt.Println("[GeminiWeb] Logged in")
+	}
+
+	// 4. 等待頁面就緒
+	if err := p.waitForReady(); err != nil {
+		fmt.Printf("[GeminiWeb] Warning: %v\n", err)
+	}
+
+	// 5. 建構提示詞
+	prompt := buildPromptFromMessagesPlaywright(messages)
+	fmt.Printf("[GeminiWeb] Typing prompt (%d chars)...\n", len(prompt))
+
+	// 6. 輸入文字（使用 Playwright 的 Auto-wait）
+	if err := p.typeInput(prompt); err != nil {
+		return fmt.Errorf("failed to type: %w", err)
+	}
+
+	// 7. 發送訊息
+	fmt.Println("[GeminiWeb] Sending message...")
+	if err := p.sendMessage(); err != nil {
+		return fmt.Errorf("failed to send: %w", err)
+	}
+
+	// 8. 提取回應
+	fmt.Println("[GeminiWeb] Waiting for response...")
+	response, err := p.extractResponse()
+	if err != nil {
+		return fmt.Errorf("failed to extract response: %w", err)
+	}
+
+	// 9. 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
+}
+
+// Close 關閉 Provider
+func (p *PlaywrightProvider) Close() error {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	if p.context != nil {
+		if err := p.context.Close(); err != nil {
+			return err
+		}
+		p.context = nil
+		p.page = nil
+	}
+	return nil
+}
+
+// isLoggedIn 檢查是否已登入
+func (p *PlaywrightProvider) isLoggedIn() bool {
+	// 嘗試找輸入框（登入狀態的主要特徵）
+	selectors := []string{
+		".ProseMirror",
+		"rich-textarea",
+		"div[role='textbox']",
+		"div[contenteditable='true']",
+		"textarea",
+	}
+
+	for _, sel := range selectors {
+		if _, err := p.page.WaitForSelector(sel, playwright.PageWaitForSelectorOptions{
+			Timeout: playwright.Float(3000),
+		}); err == nil {
+			return true
+		}
+	}
+	return false
+}
+
+// waitForReady 等待頁面就緒
+func (p *PlaywrightProvider) waitForReady() error {
+	fmt.Println("[GeminiWeb] Checking if page is ready...")
+
+	// 等待停止按鈕消失（如果存在）
+	_, _ = p.page.WaitForSelector("button[aria-label*='Stop']", playwright.PageWaitForSelectorOptions{
+		State:   playwright.WaitForSelectorStateDetached,
+		Timeout: playwright.Float(5000),
+	})
+
+	fmt.Println("[GeminiWeb] Page is ready")
+	return nil
+}
+
+// typeInput 輸入文字（使用 Playwright 的 Auto-wait）
+func (p *PlaywrightProvider) typeInput(text string) error {
+	fmt.Println("[GeminiWeb] Looking for input field...")
+
+	selectors := []string{
+		".ProseMirror",
+		"rich-textarea",
+		"div[role='textbox'][contenteditable='true']",
+		"div[contenteditable='true']",
+		"textarea",
+	}
+
+	var inputLocator playwright.Locator
+	var found bool
+
+	for _, sel := range selectors {
+		fmt.Printf("  Trying: %s\n", sel)
+		locator := p.page.Locator(sel)
+		if err := locator.WaitFor(playwright.LocatorWaitForOptions{
+			Timeout: playwright.Float(3000),
+		}); err == nil {
+			inputLocator = locator
+			found = true
+			fmt.Printf("  ✓ Found with: %s\n", sel)
+			break
+		}
+	}
+
+	if !found {
+		// 顯示 debug 信息
+		url := p.page.URL()
+		title, _ := p.page.Title()
+		return fmt.Errorf("input field not found (URL=%s, Title=%s)", url, title)
+	}
+
+	// Focus 並填充（Playwright 自動等待）
+	fmt.Printf("[GeminiWeb] Typing %d chars...\n", len(text))
+	if err := inputLocator.Fill(text); err != nil {
+		return fmt.Errorf("failed to fill: %w", err)
+	}
+
+	fmt.Println("[GeminiWeb] Input complete")
+	return nil
+}
+
+// sendMessage 發送訊息
+func (p *PlaywrightProvider) sendMessage() error {
+	// 方法 1: 按 Enter（最可靠）
+	if err := p.page.Keyboard().Press("Enter"); err != nil {
+		return fmt.Errorf("failed to press Enter: %w", err)
+	}
+
+	time.Sleep(200 * time.Millisecond)
+
+	// 方法 2: 嘗試點擊發送按鈕（補強）
+	_, _ = p.page.Evaluate(`
+		() => {
+			const keywords = ['發送', 'Send', '傳送'];
+			const buttons = Array.from(document.querySelectorAll('button, [role="button"]'));
+			
+			for (const btn of buttons) {
+				const text = (btn.innerText || btn.textContent || '').trim();
+				const label = (btn.getAttribute('aria-label') || '').trim();
+				
+				// 跳過停止按鈕
+				if (['停止', 'Stop', '中斷'].includes(text) || label.toLowerCase().includes('stop')) {
+					continue;
+				}
+				
+				if (keywords.some(kw => text.includes(kw) || label.includes(kw))) {
+					btn.click();
+					return true;
+				}
+			}
+			return false;
+		}
+	`)
+
+	return nil
+}
+
+// extractResponse 提取回應
+func (p *PlaywrightProvider) extractResponse() (string, error) {
+	selectors := []string{
+		".model-response-text",
+		".message-content",
+		".markdown",
+		".prose",
+		"model-response",
+	}
+
+	var lastText string
+	lastUpdate := time.Now()
+	timeout := 120 * time.Second
+	startTime := time.Now()
+
+	for time.Since(startTime) < timeout {
+		time.Sleep(500 * time.Millisecond)
+
+		// 嘗試所有選擇器
+		for _, sel := range selectors {
+			locator := p.page.Locator(sel)
+			count, _ := locator.Count()
+
+			if count > 0 {
+				// 取最後一個元素
+				lastEl := locator.Last()
+				text, err := lastEl.TextContent()
+				if err != nil {
+					continue
+				}
+
+				text = strings.TrimSpace(text)
+				if text != "" && len(text) > len(lastText) {
+					lastText = text
+					lastUpdate = time.Now()
+					fmt.Printf("[GeminiWeb] Response length: %d\n", len(text))
+				}
+			}
+		}
+
+		// 檢查是否完成（2秒內無新內容）
+		if time.Since(lastUpdate) > 2*time.Second && lastText != "" {
+			// 最終檢查：停止按鈕是否還存在
+			stopBtn := p.page.Locator("button[aria-label*='Stop'], button[aria-label*='停止']")
+			count, _ := stopBtn.Count()
+
+			if count == 0 {
+				return lastText, nil
+			}
+		}
+	}
+
+	if lastText != "" {
+		return lastText, nil
+	}
+	return "", fmt.Errorf("response timeout")
+}
+
+// buildPromptFromMessages 從訊息列表建構提示詞
+func buildPromptFromMessagesPlaywright(messages []apitypes.Message) string {
+	var prompt string
+	for _, m := range messages {
+		switch m.Role {
+		case "system":
+			prompt += "System: " + m.Content + "\n\n"
+		case "user":
+			prompt += m.Content + "\n\n"
+		case "assistant":
+			prompt += "Assistant: " + m.Content + "\n\n"
+		}
+	}
+	return prompt
+}