diff --git a/backend/internal/config/config.go b/backend/internal/config/config.go
index e90e56af..c1fe02bc 100644
--- a/backend/internal/config/config.go
+++ b/backend/internal/config/config.go
@@ -456,6 +456,11 @@ type GatewayConfig struct {
 	// TLSFingerprint: TLS指纹伪装配置
 	TLSFingerprint TLSFingerprintConfig `mapstructure:"tls_fingerprint"`
 
+	// NodeTLSProxy: Node.js TLS 代理配置
+	// 启用后，上游请求通过本地 Node.js 进程发起 TLS 连接，
+	// 实现天然 JA3/JA4 指纹匹配（无需 uTLS 模拟）
+	NodeTLSProxy NodeTLSProxyConfig `mapstructure:"node_tls_proxy"`
+
 	// UsageRecord: 使用量记录异步队列配置（有界队列 + 固定 worker）
 	UsageRecord GatewayUsageRecordConfig `mapstructure:"usage_record"`
 
@@ -669,6 +674,23 @@ type TLSProfileConfig struct {
 	PointFormats []uint8 `mapstructure:"point_formats"`
 }
 
+// NodeTLSProxyConfig Node.js TLS 代理配置
+// 启用后，上游 HTTPS 请求不再由 Go 直接发起，而是通过本地 Node.js 进程中转。
+// Node.js 使用原生 OpenSSL TLS 栈，其 JA3/JA4 指纹天然匹配 Claude CLI。
+type NodeTLSProxyConfig struct {
+	// Enabled: 是否启用 Node.js TLS 代理（默认关闭，保持向后兼容）
+	Enabled bool `mapstructure:"enabled"`
+	// ListenPort: Node.js 代理监听端口（默认 3456）
+	ListenPort int `mapstructure:"listen_port"`
+	// ListenHost: Node.js 代理监听地址（默认 127.0.0.1）
+	ListenHost string `mapstructure:"listen_host"`
+	// HealthPath: 健康检查路径（默认 /__health）
+	HealthPath string `mapstructure:"health_path"`
+	// UpstreamHost: 上游目标主机（默认 api.anthropic.com）
+	// 通常不需要修改，除非需要指向不同的 API 端点
+	UpstreamHost string `mapstructure:"upstream_host"`
+}
+
 // GatewaySchedulingConfig accounts scheduling configuration.
 type GatewaySchedulingConfig struct {
 	// 粘性会话排队配置
@@ -1447,6 +1469,13 @@ func setDefaults() {
 	viper.SetDefault("gateway.user_message_queue.cleanup_interval_seconds", 60)
 
 	viper.SetDefault("gateway.tls_fingerprint.enabled", true)
+
+	// Node.js TLS Proxy 默认值
+	viper.SetDefault("gateway.node_tls_proxy.enabled", false)
+	viper.SetDefault("gateway.node_tls_proxy.listen_port", 3456)
+	viper.SetDefault("gateway.node_tls_proxy.listen_host", "127.0.0.1")
+	viper.SetDefault("gateway.node_tls_proxy.health_path", "/__health")
+	viper.SetDefault("gateway.node_tls_proxy.upstream_host", "api.anthropic.com")
 	viper.SetDefault("concurrency.ping_interval", 10)
 
 	// Sora 直连配置
diff --git a/backend/internal/repository/http_upstream.go b/backend/internal/repository/http_upstream.go
index a4674c1a..b82ee65b 100644
--- a/backend/internal/repository/http_upstream.go
+++ b/backend/internal/repository/http_upstream.go
@@ -164,15 +164,22 @@ func (s *httpUpstreamService) Do(req *http.Request, proxyURL string, accountID i
 //   - enableTLSFingerprint: 是否启用 TLS 指纹伪装
 //
 // TLS 指纹说明:
-//   - 当 enableTLSFingerprint=true 时，使用 utls 库模拟 Claude CLI 的 TLS 指纹
-//   - 指纹模板根据 accountID % len(profiles) 自动选择
-//   - 支持直连、HTTP/HTTPS 代理、SOCKS5 代理三种场景
+//   - 优先使用 Node.js TLS 代理模式（gateway.node_tls_proxy.enabled）：
+//     将请求改为 HTTP 明文发送到本地 Node.js 代理，由 Node.js 原生 TLS 栈完成上游握手，
+//     JA3/JA4 指纹天然匹配 Claude CLI，无需 uTLS 模拟。
+//   - 回退到 uTLS 模式（gateway.tls_fingerprint.enabled）：
+//     使用 utls 库模拟 Claude CLI 的 TLS ClientHello。
 func (s *httpUpstreamService) DoWithTLS(req *http.Request, proxyURL string, accountID int64, accountConcurrency int, enableTLSFingerprint bool) (*http.Response, error) {
 	// 如果未启用 TLS 指纹，直接使用标准请求路径
 	if !enableTLSFingerprint {
 		return s.Do(req, proxyURL, accountID, accountConcurrency)
 	}
 
+	// 优先使用 Node.js TLS 代理模式
+	if s.isNodeTLSProxyEnabled() {
+		return s.doViaNodeTLSProxy(req, accountID, accountConcurrency)
+	}
+
 	// TLS 指纹已启用，记录调试日志
 	targetHost := ""
 	if req != nil && req.URL != nil {
@@ -227,6 +234,45 @@ func (s *httpUpstreamService) DoWithTLS(req *http.Request, proxyURL string, acco
 	return resp, nil
 }
 
+// isNodeTLSProxyEnabled 检查 Node.js TLS 代理是否启用
+func (s *httpUpstreamService) isNodeTLSProxyEnabled() bool {
+	if s.cfg == nil {
+		return false
+	}
+	return s.cfg.Gateway.NodeTLSProxy.Enabled
+}
+
+// doViaNodeTLSProxy 通过 Node.js TLS 代理发送请求
+// 将 HTTPS 请求改为 HTTP 明文发送到本地 Node.js 代理，
+// 由 Node.js 进程使用原生 TLS 栈完成到上游的 HTTPS 连接。
+// 这样 JA3/JA4 指纹天然匹配 Node.js (Claude CLI)。
+func (s *httpUpstreamService) doViaNodeTLSProxy(req *http.Request, accountID int64, accountConcurrency int) (*http.Response, error) {
+	proxyCfg := s.cfg.Gateway.NodeTLSProxy
+	listenHost := proxyCfg.ListenHost
+	if listenHost == "" {
+		listenHost = "127.0.0.1"
+	}
+	listenPort := proxyCfg.ListenPort
+	if listenPort == 0 {
+		listenPort = 3456
+	}
+
+	// 重写请求 URL：https://api.anthropic.com/v1/... → http://127.0.0.1:3456/v1/...
+	originalURL := req.URL.String()
+	req.URL.Scheme = "http"
+	req.URL.Host = fmt.Sprintf("%s:%d", listenHost, listenPort)
+
+	slog.Debug("node_tls_proxy_rewrite",
+		"account_id", accountID,
+		"original_url", originalURL,
+		"rewritten_to", req.URL.String(),
+	)
+
+	// 通过标准 HTTP 客户端发送（不需要 TLS，代理是本地 HTTP）
+	// proxyURL 为空（直连本地），使用标准 Do 路径
+	return s.Do(req, "", accountID, accountConcurrency)
+}
+
 // acquireClientWithTLS 获取或创建带 TLS 指纹的客户端
 func (s *httpUpstreamService) acquireClientWithTLS(proxyURL string, accountID int64, accountConcurrency int, profile *tlsfingerprint.Profile) (*upstreamClientEntry, error) {
 	return s.getClientEntryWithTLS(proxyURL, accountID, accountConcurrency, profile, true, true)
diff --git a/deploy/build-push-tls-proxy.sh b/deploy/build-push-tls-proxy.sh
new file mode 100755
index 00000000..497946b0
--- /dev/null
+++ b/deploy/build-push-tls-proxy.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# =============================================================================
+# Build and push node-tls-proxy multi-arch image
+# =============================================================================
+# Usage:
+#   ./build-push.sh              # build + push latest
+#   ./build-push.sh v1.0.0       # build + push with tag
+#   ./build-push.sh --local      # build locally only (no push)
+#
+# Prerequisites:
+#   docker login                 # login to Docker Hub first
+#   docker buildx create --use   # enable multi-arch builds (one-time)
+# =============================================================================
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+CONTEXT_DIR="${SCRIPT_DIR}/../tools/node-tls-proxy"
+IMAGE="zfc931912343/sub2api-tls-proxy"
+PLATFORMS="linux/amd64,linux/arm64"
+
+TAG="${1:-latest}"
+PUSH=true
+
+if [ "$TAG" = "--local" ]; then
+    TAG="latest"
+    PUSH=false
+fi
+
+echo "============================================="
+echo "  Node.js TLS Proxy Image Builder"
+echo "============================================="
+echo "  Image:     ${IMAGE}:${TAG}"
+echo "  Platforms: ${PLATFORMS}"
+echo "  Push:      ${PUSH}"
+echo "  Context:   ${CONTEXT_DIR}"
+echo "============================================="
+
+# Verify context
+if [ ! -f "${CONTEXT_DIR}/proxy.js" ]; then
+    echo "ERROR: proxy.js not found in ${CONTEXT_DIR}"
+    exit 1
+fi
+
+if [ "$PUSH" = true ]; then
+    echo ""
+    echo "[1/2] Building multi-arch image..."
+    docker buildx build \
+        --platform "${PLATFORMS}" \
+        --tag "${IMAGE}:${TAG}" \
+        --tag "${IMAGE}:latest" \
+        --push \
+        --file "${CONTEXT_DIR}/Dockerfile" \
+        "${CONTEXT_DIR}"
+
+    echo ""
+    echo "[2/2] Verifying..."
+    docker manifest inspect "${IMAGE}:${TAG}" | head -20
+else
+    echo ""
+    echo "[1/1] Building local image (current arch only)..."
+    docker build \
+        --tag "${IMAGE}:${TAG}" \
+        --file "${CONTEXT_DIR}/Dockerfile" \
+        "${CONTEXT_DIR}"
+fi
+
+echo ""
+echo "============================================="
+echo "  Done!"
+if [ "$PUSH" = true ]; then
+    echo "  Pushed: ${IMAGE}:${TAG}"
+    echo "  Pushed: ${IMAGE}:latest"
+    echo ""
+    echo "  Cloud deploy:"
+    echo "    cd deploy"
+    echo "    docker compose -f docker-compose.yml -f docker-compose.tls-proxy.yml up -d"
+fi
+echo "============================================="
diff --git a/deploy/config.example.yaml b/deploy/config.example.yaml
index 2058ced1..738b622f 100644
--- a/deploy/config.example.yaml
+++ b/deploy/config.example.yaml
@@ -379,6 +379,24 @@ gateway:
     #   profile_2:
     #     name: "Custom Profile 2"
 
+  # Node.js TLS Proxy / Node.js TLS 代理
+  # Routes upstream requests through a local Node.js process for native TLS fingerprinting.
+  # The JA3/JA4 fingerprint naturally matches Claude CLI since Node.js uses the same OpenSSL stack.
+  # 通过本地 Node.js 进程转发上游请求，实现天然的 TLS 指纹匹配。
+  # 启用后，上游 HTTPS 连接由 Node.js 原生 TLS 栈完成，JA3/JA4 天然匹配 Claude CLI。
+  node_tls_proxy:
+    enabled: false
+    # Node.js proxy listen port / 代理监听端口
+    listen_port: 3456
+    # Node.js proxy listen host / 代理监听地址
+    # Docker: use container name "node-tls-proxy"
+    # VPS: use "127.0.0.1"
+    listen_host: "127.0.0.1"
+    # Health check path / 健康检查路径
+    health_path: "/__health"
+    # Upstream target host / 上游目标主机
+    upstream_host: "api.anthropic.com"
+
 # =============================================================================
 # Logging Configuration
 # 日志配置
diff --git a/deploy/docker-compose.local.yml b/deploy/docker-compose.local.yml
index 5aea78fb..f787fe05 100644
--- a/deploy/docker-compose.local.yml
+++ b/deploy/docker-compose.local.yml
@@ -24,7 +24,7 @@ services:
   # Sub2API Application
   # ===========================================================================
   sub2api:
-    image: weishaw/sub2api:latest
+    image: zfc931912343/sub2api:latest
     container_name: sub2api
     restart: unless-stopped
     ulimits:
diff --git a/deploy/docker-compose.standalone.yml b/deploy/docker-compose.standalone.yml
index df0ccfcc..ca2c6c36 100644
--- a/deploy/docker-compose.standalone.yml
+++ b/deploy/docker-compose.standalone.yml
@@ -12,7 +12,7 @@
 
 services:
   sub2api:
-    image: weishaw/sub2api:latest
+    image: zfc931912343/sub2api:latest
     container_name: sub2api
     restart: unless-stopped
     ulimits:
diff --git a/deploy/docker-compose.tls-proxy.yml b/deploy/docker-compose.tls-proxy.yml
new file mode 100644
index 00000000..e48e4072
--- /dev/null
+++ b/deploy/docker-compose.tls-proxy.yml
@@ -0,0 +1,82 @@
+# =============================================================================
+# Node.js TLS Proxy Overlay
+# =============================================================================
+# 在现有 docker-compose.yml 基础上增加 Node.js TLS 代理。
+#
+# 用法：
+#   docker compose -f docker-compose.yml -f docker-compose.tls-proxy.yml up -d
+#
+# 架构：
+#   sub2api (Go) → HTTP 明文 → node-tls-proxy → HTTPS (原生 TLS) → api.anthropic.com
+#
+# 网络隔离：
+#   - sub2api 仅连接 internal + sub2api-network（访问 pg/redis，但无外网）
+#   - node-tls-proxy 双栈网络（internal + external），唯一的出站通道
+#   - IPv6 内核级禁用
+# =============================================================================
+
+services:
+  # ===========================================================================
+  # 覆盖 sub2api：加入 internal 网络 + 启用 Node.js TLS 代理
+  # ===========================================================================
+  sub2api:
+    networks:
+      - sub2api-internal
+      - sub2api-network    # 保留：访问 postgres/redis
+    environment:
+      # 启用 Node.js TLS 代理
+      - GATEWAY_NODE_TLS_PROXY_ENABLED=true
+      - GATEWAY_NODE_TLS_PROXY_LISTEN_PORT=3456
+      - GATEWAY_NODE_TLS_PROXY_LISTEN_HOST=node-tls-proxy
+      - GATEWAY_NODE_TLS_PROXY_UPSTREAM_HOST=api.anthropic.com
+    depends_on:
+      node-tls-proxy:
+        condition: service_healthy
+
+  # ===========================================================================
+  # Node.js TLS Forward Proxy
+  # 直接拉取预构建镜像，支持 amd64/arm64
+  # ===========================================================================
+  node-tls-proxy:
+    image: zfc931912343/sub2api-tls-proxy:latest
+    container_name: sub2api-node-tls-proxy
+    restart: unless-stopped
+    user: "1000:1000"
+    read_only: true
+    tmpfs:
+      - /tmp:size=10M
+    environment:
+      - PROXY_PORT=3456
+      - PROXY_HOST=0.0.0.0
+      - UPSTREAM_HOST=api.anthropic.com
+      # 可选：经过外部代理出站（HTTP CONNECT 隧道）
+      - UPSTREAM_PROXY=${TLS_PROXY_UPSTREAM_PROXY:-}
+      - TZ=${TZ:-Asia/Shanghai}
+    networks:
+      - sub2api-internal   # sub2api 可以访问
+      - sub2api-external   # 可以访问外网
+    sysctls:
+      # 内核级禁用 IPv6（防 IPv6 泄露）
+      - net.ipv6.conf.all.disable_ipv6=1
+      - net.ipv6.conf.default.disable_ipv6=1
+    healthcheck:
+      test: ["CMD", "node", "-e", "const h=require('http');h.get('http://127.0.0.1:3456/__health',r=>{process.exit(r.statusCode===200?0:1)}).on('error',()=>process.exit(1))"]
+      interval: 15s
+      timeout: 5s
+      retries: 3
+      start_period: 5s
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+          cpus: "1.0"
+
+# =============================================================================
+# Networks
+# =============================================================================
+networks:
+  sub2api-internal:
+    internal: true     # 关键：无外网访问
+    driver: bridge
+  sub2api-external:
+    driver: bridge
diff --git a/deploy/docker-compose.yml b/deploy/docker-compose.yml
index a0bc1a60..6f6b2a66 100644
--- a/deploy/docker-compose.yml
+++ b/deploy/docker-compose.yml
@@ -16,7 +16,7 @@ services:
   # Sub2API Application
   # ===========================================================================
   sub2api:
-    image: weishaw/sub2api:latest
+    image: zfc931912343/sub2api:latest
     container_name: sub2api
     restart: unless-stopped
     ulimits:
@@ -146,7 +146,7 @@ services:
     networks:
       - sub2api-network
     healthcheck:
-      test: ["CMD", "wget", "-q", "-T", "5", "-O", "/dev/null", "http://localhost:8080/health"]
+      test: [ "CMD", "wget", "-q", "-T", "5", "-O", "/dev/null", "http://localhost:8080/health" ]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -177,7 +177,7 @@ services:
     networks:
       - sub2api-network
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-sub2api} -d ${POSTGRES_DB:-sub2api}"]
+      test: [ "CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-sub2api} -d ${POSTGRES_DB:-sub2api}" ]
       interval: 10s
       timeout: 5s
       retries: 5
@@ -185,9 +185,9 @@ services:
     # 注意：不暴露端口到宿主机，应用通过内部网络连接
     # 如需调试，可临时添加：ports: ["127.0.0.1:5433:5432"]
 
-  # ===========================================================================
-  # Redis Cache
-  # ===========================================================================
+    # ===========================================================================
+    # Redis Cache
+    # ===========================================================================
   redis:
     image: redis:8-alpine
     container_name: sub2api-redis
@@ -199,12 +199,12 @@ services:
     volumes:
       - redis_data:/data
     command: >
-        sh -c '
-          redis-server
-          --save 60 1
-          --appendonly yes
-          --appendfsync everysec
-          ${REDIS_PASSWORD:+--requirepass "$REDIS_PASSWORD"}'
+      sh -c '
+        redis-server
+        --save 60 1
+        --appendonly yes
+        --appendfsync everysec
+        ${REDIS_PASSWORD:+--requirepass "$REDIS_PASSWORD"}'
     environment:
       - TZ=${TZ:-Asia/Shanghai}
       # REDISCLI_AUTH is used by redis-cli for authentication (safer than -a flag)
@@ -212,7 +212,7 @@ services:
     networks:
       - sub2api-network
     healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
+      test: [ "CMD", "redis-cli", "ping" ]
       interval: 10s
       timeout: 5s
       retries: 5
diff --git a/tools/firewall/setup-firewall.sh b/tools/firewall/setup-firewall.sh
new file mode 100755
index 00000000..14041d88
--- /dev/null
+++ b/tools/firewall/setup-firewall.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+# sub2api 指纹防泄露 iptables 规则
+# 确保只有 Node.js TLS Proxy 能直连上游 HTTPS，
+# sub2api Go 进程即使有 bug 也无法绕过。
+#
+# 用法:
+#   sudo bash setup-firewall.sh [apply|remove|status]
+#
+# 前置条件:
+#   - Node.js proxy 以专用用户 "nodeproxy" 运行
+#   - 创建用户: sudo useradd -r -s /usr/sbin/nologin nodeproxy
+
+set -euo pipefail
+
+NODE_PROXY_USER="${MG_NODE_PROXY_USER:-nodeproxy}"
+CHAIN_NAME="MG_FINGERPRINT"
+
+log() { echo "[$(date '+%H:%M:%S')] $*"; }
+
+apply_rules() {
+    log "Applying fingerprint firewall rules..."
+
+    # 验证用户存在
+    if ! id "$NODE_PROXY_USER" &>/dev/null; then
+        log "ERROR: User '$NODE_PROXY_USER' does not exist."
+        log "Create it: sudo useradd -r -s /usr/sbin/nologin $NODE_PROXY_USER"
+        exit 1
+    fi
+
+    # 创建自定义链（幂等）
+    iptables -N "$CHAIN_NAME" 2>/dev/null || iptables -F "$CHAIN_NAME"
+
+    # === Rule 1: QUIC 阻断 — 丢弃所有出站 UDP 443/4433 ===
+    iptables -A "$CHAIN_NAME" -p udp --dport 443  -j DROP \
+        -m comment --comment "MG: block QUIC/HTTP3 UDP 443"
+    iptables -A "$CHAIN_NAME" -p udp --dport 4433 -j DROP \
+        -m comment --comment "MG: block QUIC alt UDP 4433"
+
+    # === Rule 2: 允许 Node.js proxy 出站 TCP 443 ===
+    iptables -A "$CHAIN_NAME" -p tcp --dport 443 \
+        -m owner --uid-owner "$NODE_PROXY_USER" -j ACCEPT \
+        -m comment --comment "MG: allow nodeproxy TCP 443"
+
+    # === Rule 3: 阻止其他进程直连 TCP 443 ===
+    iptables -A "$CHAIN_NAME" -p tcp --dport 443 -j REJECT --reject-with tcp-reset \
+        -m comment --comment "MG: block non-proxy TCP 443"
+
+    # 将自定义链挂载到 OUTPUT（幂等）
+    if ! iptables -C OUTPUT -j "$CHAIN_NAME" 2>/dev/null; then
+        iptables -A OUTPUT -j "$CHAIN_NAME"
+    fi
+
+    # === Rule 4: IPv6 全面阻断 ===
+    ip6tables -N "${CHAIN_NAME}_V6" 2>/dev/null || ip6tables -F "${CHAIN_NAME}_V6"
+    # 允许回环
+    ip6tables -A "${CHAIN_NAME}_V6" -o lo -j ACCEPT \
+        -m comment --comment "MG: allow IPv6 loopback"
+    # 阻断其他 IPv6 出站
+    ip6tables -A "${CHAIN_NAME}_V6" -j DROP \
+        -m comment --comment "MG: block all IPv6 outbound"
+
+    if ! ip6tables -C OUTPUT -j "${CHAIN_NAME}_V6" 2>/dev/null; then
+        ip6tables -A OUTPUT -j "${CHAIN_NAME}_V6"
+    fi
+
+    log "Firewall rules applied successfully."
+    log "  - UDP 443/4433: BLOCKED (QUIC)"
+    log "  - TCP 443: ONLY '$NODE_PROXY_USER' allowed"
+    log "  - IPv6 outbound: BLOCKED"
+}
+
+remove_rules() {
+    log "Removing fingerprint firewall rules..."
+
+    # 从 OUTPUT 移除引用
+    iptables -D OUTPUT -j "$CHAIN_NAME" 2>/dev/null || true
+    ip6tables -D OUTPUT -j "${CHAIN_NAME}_V6" 2>/dev/null || true
+
+    # 清空并删除自定义链
+    iptables -F "$CHAIN_NAME" 2>/dev/null || true
+    iptables -X "$CHAIN_NAME" 2>/dev/null || true
+    ip6tables -F "${CHAIN_NAME}_V6" 2>/dev/null || true
+    ip6tables -X "${CHAIN_NAME}_V6" 2>/dev/null || true
+
+    log "Firewall rules removed."
+}
+
+show_status() {
+    log "=== IPv4 MG_FINGERPRINT chain ==="
+    iptables -L "$CHAIN_NAME" -n -v 2>/dev/null || echo "(not found)"
+    echo
+    log "=== IPv6 MG_FINGERPRINT_V6 chain ==="
+    ip6tables -L "${CHAIN_NAME}_V6" -n -v 2>/dev/null || echo "(not found)"
+}
+
+case "${1:-apply}" in
+    apply)  apply_rules ;;
+    remove) remove_rules ;;
+    status) show_status ;;
+    *)
+        echo "Usage: $0 [apply|remove|status]"
+        exit 1
+        ;;
+esac
diff --git a/tools/node-tls-proxy/Dockerfile b/tools/node-tls-proxy/Dockerfile
new file mode 100644
index 00000000..cbcb4f93
--- /dev/null
+++ b/tools/node-tls-proxy/Dockerfile
@@ -0,0 +1,24 @@
+FROM node:24.13.0-slim
+
+LABEL maintainer="Wei-Shaw <github.com/Wei-Shaw>"
+LABEL description="Node.js TLS Forward Proxy - native JA3/JA4 fingerprint matching"
+LABEL org.opencontainers.image.source="https://github.com/Wei-Shaw/sub2api"
+
+WORKDIR /app
+
+COPY proxy.js package.json ./
+
+# 零依赖，不需要 npm install
+
+ENV PROXY_PORT=3456
+ENV PROXY_HOST=0.0.0.0
+ENV UPSTREAM_HOST=api.anthropic.com
+
+EXPOSE 3456
+
+# 健康检查：用 Node.js 内置 http 模块，不依赖 curl
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 --start-period=5s \
+  CMD node -e "const http=require('http');const r=http.get('http://127.0.0.1:'+(process.env.PROXY_PORT||3456)+'/__health',s=>{process.exit(s.statusCode===200?0:1)});r.on('error',()=>process.exit(1));r.setTimeout(3000,()=>{r.destroy();process.exit(1)})"
+
+USER node
+CMD ["node", "proxy.js"]
diff --git a/tools/node-tls-proxy/package.json b/tools/node-tls-proxy/package.json
new file mode 100644
index 00000000..a68007cb
--- /dev/null
+++ b/tools/node-tls-proxy/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "node-tls-proxy",
+  "version": "1.0.0",
+  "private": true,
+  "description": "Node.js TLS forward proxy for native JA3/JA4 fingerprint matching",
+  "main": "proxy.js",
+  "scripts": {
+    "start": "node proxy.js",
+    "health": "curl -s http://127.0.0.1:${PROXY_PORT:-3456}/__health | jq ."
+  },
+  "engines": {
+    "node": ">=20.0.0"
+  }
+}
diff --git a/tools/node-tls-proxy/proxy.js b/tools/node-tls-proxy/proxy.js
new file mode 100644
index 00000000..19d8befe
--- /dev/null
+++ b/tools/node-tls-proxy/proxy.js
@@ -0,0 +1,245 @@
+'use strict';
+
+const http = require('http');
+const https = require('https');
+const net = require('net');
+
+// ─── 配置 ───────────────────────────────────────────────
+const UPSTREAM_HOST = process.env.UPSTREAM_HOST || 'api.anthropic.com';
+const LISTEN_PORT = parseInt(process.env.PROXY_PORT || '3456', 10);
+const LISTEN_HOST = process.env.PROXY_HOST || '127.0.0.1';
+// 可选：上游 HTTPS 代理（仅支持 HTTP CONNECT 隧道）
+const UPSTREAM_PROXY = process.env.UPSTREAM_PROXY || '';
+// 连接超时（ms）
+const CONNECT_TIMEOUT = parseInt(process.env.CONNECT_TIMEOUT || '30000', 10);
+// 空闲超时（ms）— 对 SSE 长连接要足够大
+const IDLE_TIMEOUT = parseInt(process.env.IDLE_TIMEOUT || '600000', 10);
+
+// ─── 日志 ───────────────────────────────────────────────
+const log = (level, msg, extra = {}) => {
+  const entry = {
+    time: new Date().toISOString(),
+    level,
+    msg,
+    ...extra,
+  };
+  process.stderr.write(JSON.stringify(entry) + '\n');
+};
+
+// ─── 健康检查路径 ─────────────────────────────────────────
+const HEALTH_PATH = '/__health';
+
+// ─── 通过 HTTP 代理建立 CONNECT 隧道 ──────────────────────
+function connectViaProxy(proxyUrl, targetHost, targetPort) {
+  return new Promise((resolve, reject) => {
+    const proxy = new URL(proxyUrl);
+    const proxyPort = parseInt(proxy.port || '80', 10);
+
+    const conn = net.connect(proxyPort, proxy.hostname, () => {
+      const connectReq =
+        `CONNECT ${targetHost}:${targetPort} HTTP/1.1\r\n` +
+        `Host: ${targetHost}:${targetPort}\r\n`;
+
+      // 代理认证
+      const auth = proxy.username
+        ? `Proxy-Authorization: Basic ${Buffer.from(
+            `${decodeURIComponent(proxy.username)}:${decodeURIComponent(proxy.password || '')}`
+          ).toString('base64')}\r\n`
+        : '';
+
+      conn.write(connectReq + auth + '\r\n');
+    });
+
+    conn.once('error', reject);
+    conn.setTimeout(CONNECT_TIMEOUT, () => {
+      conn.destroy(new Error('proxy CONNECT timeout'));
+    });
+
+    // 读取代理响应
+    let buf = '';
+    const onData = (chunk) => {
+      buf += chunk.toString();
+      const idx = buf.indexOf('\r\n\r\n');
+      if (idx === -1) return; // 头还没完整
+
+      conn.removeListener('data', onData);
+      const statusLine = buf.slice(0, buf.indexOf('\r\n'));
+      const statusCode = parseInt(statusLine.split(' ')[1], 10);
+
+      if (statusCode === 200) {
+        conn.setTimeout(0); // 清除超时
+        // 如果头之后有残余数据，先 unshift 回去
+        const remainder = buf.slice(idx + 4);
+        if (remainder.length > 0) {
+          conn.unshift(Buffer.from(remainder));
+        }
+        resolve(conn);
+      } else {
+        conn.destroy();
+        reject(new Error(`proxy CONNECT failed: ${statusLine}`));
+      }
+    };
+    conn.on('data', onData);
+  });
+}
+
+// ─── 构建上游请求选项 ──────────────────────────────────────
+function buildUpstreamOptions(req) {
+  // 复制头，重写 host
+  const headers = { ...req.headers };
+  headers.host = UPSTREAM_HOST;
+  // 移除 hop-by-hop 头
+  delete headers['connection'];
+  delete headers['keep-alive'];
+  delete headers['proxy-connection'];
+  delete headers['transfer-encoding'];
+
+  return {
+    hostname: UPSTREAM_HOST,
+    port: 443,
+    path: req.url,
+    method: req.method,
+    headers,
+    // 关键：不设置任何自定义 TLS 选项
+    // 让 Node.js 使用默认 TLS stack → JA3/JA4 天然匹配
+    servername: UPSTREAM_HOST, // SNI
+    timeout: CONNECT_TIMEOUT,
+  };
+}
+
+// ─── 代理请求 ───────────────────────────────────────────
+async function proxyRequest(req, res) {
+  const opts = buildUpstreamOptions(req);
+
+  let proxyReq;
+
+  if (UPSTREAM_PROXY) {
+    // 通过代理建立隧道，然后 TLS 握手
+    try {
+      const socket = await connectViaProxy(UPSTREAM_PROXY, UPSTREAM_HOST, 443);
+      opts.socket = socket;
+      opts.agent = false; // 使用自定义 socket，不走连接池
+      proxyReq = https.request(opts);
+    } catch (err) {
+      log('error', 'proxy tunnel failed', { error: err.message });
+      if (!res.headersSent) {
+        res.writeHead(502, { 'content-type': 'application/json' });
+        res.end(JSON.stringify({ error: 'proxy_tunnel_error', message: err.message }));
+      }
+      return;
+    }
+  } else {
+    proxyReq = https.request(opts);
+  }
+
+  // 上游响应
+  proxyReq.on('response', (proxyRes) => {
+    // 过滤 hop-by-hop 头
+    const responseHeaders = { ...proxyRes.headers };
+    delete responseHeaders['connection'];
+    delete responseHeaders['keep-alive'];
+    delete responseHeaders['transfer-encoding']; // Node.js 会自动处理
+
+    res.writeHead(proxyRes.statusCode, responseHeaders);
+
+    // SSE / 流式透传：逐块 pipe
+    proxyRes.pipe(res, { end: true });
+
+    proxyRes.on('error', (err) => {
+      log('error', 'upstream response error', { error: err.message });
+      res.end();
+    });
+  });
+
+  // 上游连接错误
+  proxyReq.on('error', (err) => {
+    log('error', 'upstream request error', {
+      error: err.message,
+      path: req.url,
+      method: req.method,
+    });
+    if (!res.headersSent) {
+      res.writeHead(502, { 'content-type': 'application/json' });
+      res.end(JSON.stringify({ error: 'upstream_error', message: err.message }));
+    }
+  });
+
+  // 超时
+  proxyReq.on('timeout', () => {
+    log('warn', 'upstream request timeout', { path: req.url });
+    proxyReq.destroy(new Error('upstream timeout'));
+  });
+
+  // 客户端断开时中止上游请求
+  req.on('close', () => {
+    if (!proxyReq.destroyed) {
+      proxyReq.destroy();
+    }
+  });
+
+  // 将客户端请求体 pipe 到上游
+  req.pipe(proxyReq, { end: true });
+}
+
+// ─── HTTP 服务器 ─────────────────────────────────────────
+const server = http.createServer((req, res) => {
+  // 健康检查
+  if (req.url === HEALTH_PATH) {
+    res.writeHead(200, { 'content-type': 'application/json' });
+    res.end(JSON.stringify({
+      status: 'ok',
+      upstream: UPSTREAM_HOST,
+      node: process.version,
+      openssl: process.versions.openssl,
+      uptime: process.uptime(),
+    }));
+    return;
+  }
+
+  proxyRequest(req, res).catch((err) => {
+    log('error', 'unhandled proxy error', { error: err.message });
+    if (!res.headersSent) {
+      res.writeHead(500, { 'content-type': 'application/json' });
+      res.end(JSON.stringify({ error: 'internal_error' }));
+    }
+  });
+});
+
+// SSE 长连接：禁用 server 级超时（由上游控制）
+server.timeout = 0;
+server.keepAliveTimeout = IDLE_TIMEOUT;
+server.headersTimeout = 60000;
+
+server.listen(LISTEN_PORT, LISTEN_HOST, () => {
+  log('info', 'node-tls-proxy started', {
+    listen: `${LISTEN_HOST}:${LISTEN_PORT}`,
+    upstream: `${UPSTREAM_HOST}:443`,
+    proxy: UPSTREAM_PROXY || '(direct)',
+    node: process.version,
+    openssl: process.versions.openssl,
+  });
+});
+
+// ─── 优雅关闭 ─────────────────────────────────────────────
+let shuttingDown = false;
+function shutdown(signal) {
+  if (shuttingDown) return;
+  shuttingDown = true;
+  log('info', `received ${signal}, shutting down`);
+  server.close(() => {
+    log('info', 'server closed');
+    process.exit(0);
+  });
+  // 强制退出兜底
+  setTimeout(() => process.exit(1), 5000);
+}
+process.on('SIGTERM', () => shutdown('SIGTERM'));
+process.on('SIGINT', () => shutdown('SIGINT'));
+
+// 未捕获异常不要崩进程
+process.on('uncaughtException', (err) => {
+  log('error', 'uncaught exception', { error: err.message, stack: err.stack });
+});
+process.on('unhandledRejection', (reason) => {
+  log('error', 'unhandled rejection', { error: String(reason) });
+});