diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1ffa0e..2aa8118 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # CHANGELOG - go/service
 
-## v1.5.6 (2026-06-05)
+## v1.5.9 (2026-06-05)
+- **优化: 低代码环境深度对齐**:
+  - **JS 友好型 Header**: 引入 \`service.Header\` 包装类，提供大小写不敏感的 \`Get/Set/Add/Del\` 方法，提升脚本开发体验。
+  - **Cookie 遮蔽**: 在 \`Request\` 中实现方法遮蔽，确保 JS 侧看到的 Cookie 参数均为简化的 \`Service_Cookie\`，彻底解决穿透问题。
+  - **API 统一**: 将 \`Request.Headers()\` 重命名为 \`Request.Header()\`，与 \`Response.Header()\` 保持命名对齐。
+- **重构**: 给内部字段（如 \`*http.Request\`, \`ResponseWriter\`）增加 \`js:"-"\` 标签，精准管控对 JS 暴露的 API 边界。
+- **修复**: 解决了因 Header 包装导致的 Go 内部代码（\`handler.go\`, \`static.go\`）编译错误。
 - **新特性: EnableWebDev 支持**:
   - 引入了 `service.EnableWebDev(config watch.Config)`，支持自动刷新页面的开发模式。
   - **WebSocket 同步**: 自动注册 `/_watch` 服务，与文件监听器协同工作。
diff --git a/handler.go b/handler.go
index 01fce74..040a23f 100644
--- a/handler.go
+++ b/handler.go
@@ -85,7 +85,7 @@ func (rh *RouteHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 
 			// 过滤响应头
 			respHeaders := make(map[string]string)
-			for k, v := range response.Header() {
+			for k, v := range response.Header().H {
 				respHeaders[k] = strings.Join(v, ", ")
 			}
 
@@ -310,7 +310,7 @@ func parseRequestArgs(request *Request, args map[string]any) {
 
 	// Form params
 	if request.Method == http.MethodPost || request.Method == http.MethodPut {
-		contentType := request.Header.Get("Content-Type")
+		contentType := request.Header().Get("Content-Type")
 		if strings.HasPrefix(contentType, "application/json") {
 			body, _ := io.ReadAll(request.Body)
 			_ = request.Body.Close()
@@ -430,9 +430,9 @@ func outputResult(response *Response, result any) {
 func (ws *webServer) handleClientKeys(request *Request, response *Response) {
 	// SessionId
 	if ws.usedSessionIdKey != "" {
-		sessionId := request.Header.Get(ws.usedSessionIdKey)
+		sessionId := request.Header().Get(ws.usedSessionIdKey)
 		if sessionId == "" && !ws.Config.SessionWithoutCookie {
-			if ck, err := request.Cookie(ws.usedSessionIdKey); err == nil {
+			if ck := request.GetCookie(ws.usedSessionIdKey); ck != nil {
 				sessionId = ck.Value
 			}
 		}
@@ -451,15 +451,15 @@ func (ws *webServer) handleClientKeys(request *Request, response *Response) {
 				})
 			}
 		}
-		request.Header.Set(discover.HeaderSessionID, sessionId)
+		request.Request.Header.Set(discover.HeaderSessionID, sessionId)
 		response.Header().Set(ws.usedSessionIdKey, sessionId)
 	}
 
 	// DeviceId
 	if ws.usedDeviceIdKey != "" {
-		deviceId := request.Header.Get(ws.usedDeviceIdKey)
+		deviceId := request.Header().Get(ws.usedDeviceIdKey)
 		if deviceId == "" && !ws.Config.DeviceWithoutCookie {
-			if ck, err := request.Cookie(ws.usedDeviceIdKey); err == nil {
+			if ck := request.GetCookie(ws.usedDeviceIdKey); ck != nil {
 				deviceId = ck.Value
 			}
 		}
@@ -475,7 +475,7 @@ func (ws *webServer) handleClientKeys(request *Request, response *Response) {
 				})
 			}
 		}
-		request.Header.Set(discover.HeaderDeviceID, deviceId)
+		request.Request.Header.Set(discover.HeaderDeviceID, deviceId)
 		response.Header().Set(ws.usedDeviceIdKey, deviceId)
 	}
 }
diff --git a/js_export.go b/js_export.go
index 5eb118e..35909b4 100644
--- a/js_export.go
+++ b/js_export.go
@@ -6,12 +6,12 @@ import (
 
 func init() {
 	jsmod.Register("service", map[string]any{
-		// 类型占位工厂 (用于 AI 发现类型结构)
-		"newRequest":   func() *Request { return &Request{} },
-		"newResponse":  func() *Response { return &Response{} },
-		"newWebSocket": func() *WebSocketConn { return &WebSocketConn{} },
-		"newSession":   func() *Session { return &Session{} },
-		"newFile":      func() *jsUploadFile { return &jsUploadFile{} },
+		// 类型占位工厂 (用于 AI 发现类型结构，生成文档时隐藏)
+		"__exportRequest":   func() *Request { return &Request{} },
+		"__exportResponse":  func() *Response { return &Response{} },
+		"__exportWebSocket": func() *WebSocketConn { return &WebSocketConn{} },
+		"__exportSession":   func() *Session { return &Session{} },
+		"__exportFile":      func() *jsUploadFile { return &jsUploadFile{} },
 
 		// 功能函数
 		"upgrade": Upgrade,
diff --git a/request.go b/request.go
index 9fec36a..d59aa55 100644
--- a/request.go
+++ b/request.go
@@ -33,13 +33,120 @@ func (f *UploadFile) Content() ([]byte, error) {
 	return io.ReadAll(src)
 }
 
+// Header 包装 http.Header 以提供 JS 友好的方法
+type Header struct {
+	H http.Header `js:"-"`
+}
+
+func (h *Header) Get(key string) string {
+	return h.H.Get(key)
+}
+
+func (h *Header) Set(key, value string) {
+	h.H.Set(key, value)
+}
+
+func (h *Header) Add(key, value string) {
+	h.H.Add(key, value)
+}
+
+func (h *Header) Del(key string) {
+	h.H.Del(key)
+}
+
+func (h *Header) Values(key string) []string {
+	return h.H.Values(key)
+}
+
 // Request 封装 http.Request
 type Request struct {
-	*http.Request
-	contextValues map[string]any
+	*http.Request `js:"-"`
+	contextValues map[string]any `js:"-"`
 	Id            string
 }
 
+// Cookie 简化的 JS 友好 Cookie 结构
+type Cookie struct {
+	Name     string
+	Value    string
+	Path     string
+	Domain   string
+	MaxAge   int
+	Secure   bool
+	HttpOnly bool
+}
+
+func (r *Request) GetCookie(name string) *Cookie {
+	c, err := r.Request.Cookie(name)
+	if err != nil {
+		return nil
+	}
+	return &Cookie{
+		Name:     c.Name,
+		Value:    c.Value,
+		Path:     c.Path,
+		Domain:   c.Domain,
+		MaxAge:   c.MaxAge,
+		Secure:   c.Secure,
+		HttpOnly: c.HttpOnly,
+	}
+}
+
+func (r *Request) GetCookies() []*Cookie {
+	res := make([]*Cookie, 0)
+	for _, c := range r.Request.Cookies() {
+		res = append(res, &Cookie{
+			Name:     c.Name,
+			Value:    c.Value,
+			Path:     c.Path,
+			Domain:   c.Domain,
+			MaxAge:   c.MaxAge,
+			Secure:   c.Secure,
+			HttpOnly: c.HttpOnly,
+		})
+	}
+	return res
+}
+
+// AddCookie 遮蔽原生的 AddCookie
+func (r *Request) AddCookie(c *Cookie) {
+	if c == nil {
+		return
+	}
+	r.Request.AddCookie(&http.Cookie{
+		Name:     c.Name,
+		Value:    c.Value,
+		Path:     c.Path,
+		Domain:   c.Domain,
+		MaxAge:   c.MaxAge,
+		Secure:   c.Secure,
+		HttpOnly: c.HttpOnly,
+	})
+}
+
+// CookiesNamed 遮蔽原生的 CookiesNamed
+func (r *Request) CookiesNamed(name string) []*Cookie {
+	res := make([]*Cookie, 0)
+	for _, c := range r.Request.Cookies() {
+		if c.Name == name {
+			res = append(res, &Cookie{
+				Name:     c.Name,
+				Value:    c.Value,
+				Path:     c.Path,
+				Domain:   c.Domain,
+				MaxAge:   c.MaxAge,
+				Secure:   c.Secure,
+				HttpOnly: c.HttpOnly,
+			})
+		}
+	}
+	return res
+}
+
+func (r *Request) Header() *Header {
+	return &Header{H: r.Request.Header}
+}
+
 // NewRequest 创建 Request 包装
 func NewRequest(httpRequest *http.Request) *Request {
 	return &Request{
@@ -68,11 +175,11 @@ func (r *Request) Get(key string) any {
 
 // MakeUrl 根据当前请求构建完整 URL
 func (r *Request) MakeUrl(path string) string {
-	scheme := r.Header.Get(discover.HeaderScheme)
+	scheme := r.Header().Get(discover.HeaderScheme)
 	if scheme == "" {
 		scheme = "http"
 	}
-	host := r.Header.Get(discover.HeaderHost)
+	host := r.Header().Get(discover.HeaderHost)
 	if host == "" {
 		host = r.Host
 	}
@@ -81,24 +188,24 @@ func (r *Request) MakeUrl(path string) string {
 
 // DeviceId 获取设备 ID
 func (r *Request) DeviceId() string {
-	return r.Header.Get(discover.HeaderDeviceID)
+	return r.Header().Get(discover.HeaderDeviceID)
 }
 
 // SessionId 获取会话 ID
 func (r *Request) SessionId() string {
-	return r.Header.Get(discover.HeaderSessionID)
+	return r.Header().Get(discover.HeaderSessionID)
 }
 
 // SetUserId 设置用户 ID（传递给下游）
 func (r *Request) SetUserId(userId string) {
-	r.Header.Set(discover.HeaderUserID, userId)
+	r.Header().Set(discover.HeaderUserID, userId)
 }
 
 // ClientIp 获取真实 IP
 func (r *Request) ClientIp() string {
-	ip := r.Header.Get(discover.HeaderClientIP)
+	ip := r.Header().Get(discover.HeaderClientIP)
 	if ip == "" {
-		ip = r.Header.Get(discover.HeaderForwardedFor)
+		ip = r.Header().Get(discover.HeaderForwardedFor)
 	}
 	if ip == "" {
 		host, _, err := net.SplitHostPort(r.RemoteAddr)
diff --git a/response.go b/response.go
index 4fe6120..ad67a45 100644
--- a/response.go
+++ b/response.go
@@ -10,16 +10,31 @@ import (
 // Response 封装 http.ResponseWriter
 type Response struct {
 	Id            string
-	Writer        http.ResponseWriter
+	Writer        http.ResponseWriter `js:"-"`
 	Code          int
-	body          []byte
-	outLen        int
-	changed       bool
-	headerWritten bool
-	dontLog200    bool
-	dontLogArgs   []string
-	ProxyHeader   *http.Header
-	server        *webServer
+	body          []byte              `js:"-"`
+	outLen        int                 `js:"-"`
+	changed       bool                `js:"-"`
+	headerWritten bool                `js:"-"`
+	dontLog200    bool                `js:"-"`
+	dontLogArgs   []string            `js:"-"`
+	ProxyHeader   *http.Header        `js:"-"`
+	server        *webServer          `js:"-"`
+}
+
+func (r *Response) SetCookie(cookie *Cookie) {
+	if cookie == nil {
+		return
+	}
+	http.SetCookie(r.Writer, &http.Cookie{
+		Name:     cookie.Name,
+		Value:    cookie.Value,
+		Path:     cookie.Path,
+		Domain:   cookie.Domain,
+		MaxAge:   cookie.MaxAge,
+		Secure:   cookie.Secure,
+		HttpOnly: cookie.HttpOnly,
+	})
 }
 
 // NewResponse 创建 Response 包装
@@ -32,11 +47,11 @@ func NewResponse(writer http.ResponseWriter, server *webServer) *Response {
 }
 
 // Header 获取响应头部
-func (r *Response) Header() http.Header {
+func (r *Response) Header() *Header {
 	if r.ProxyHeader != nil {
-		return *r.ProxyHeader
+		return &Header{H: *r.ProxyHeader}
 	}
-	return r.Writer.Header()
+	return &Header{H: r.Writer.Header()}
 }
 
 // Write 写入响应内容
diff --git a/static.go b/static.go
index e92caf0..c9a708b 100644
--- a/static.go
+++ b/static.go
@@ -132,7 +132,7 @@ func (ws *webServer) processStatic(requestPath string, request *Request, respons
 	}
 
 	// 检查 304
-	if ifModifiedSince := request.Header.Get("If-Modified-Since"); ifModifiedSince != "" {
+	if ifModifiedSince := request.Header().Get("If-Modified-Since"); ifModifiedSince != "" {
 		if t, err := time.Parse(http.TimeFormat, ifModifiedSince); err == nil {
 			if time.Unix(info.ModTime, 0).Truncate(time.Second).Before(t.Truncate(time.Second)) ||
 				time.Unix(info.ModTime, 0).Truncate(time.Second).Equal(t.Truncate(time.Second)) {