diff --git a/Dockerfile b/Dockerfile
index 351dfd1..f9ec9ab 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 # 多阶段构建：第一阶段用 Node 构建产物，第二阶段用 Nginx 托管静态资源
 # 用 Node 22 LTS：Node 20.19.x 上 corepack/pnpm 现代版有 VM builtin module 兼容问题
-FROM node:22-alpine AS builder
+# base 镜像走 Harbor Proxy Cache（dockerhub-proxy → docker.io），避免公网拉取超时
+FROM 43.134.235.58:58080/dockerhub-proxy/library/node:22-alpine AS builder
 
 WORKDIR /app
 
@@ -19,7 +20,7 @@ COPY . .
 RUN pnpm lint && pnpm check && pnpm build
 
 # ---- 运行阶段 ----
-FROM nginx:1.27-alpine AS runtime
+FROM 43.134.235.58:58080/dockerhub-proxy/library/nginx:1.27-alpine AS runtime
 
 # 替换默认配置
 COPY nginx.conf /etc/nginx/conf.d/default.conf