diff --git a/admin/Dockerfile b/admin/Dockerfile
index 78b068a..9d3832d 100644
--- a/admin/Dockerfile
+++ b/admin/Dockerfile
@@ -1,11 +1,14 @@
-FROM node:20-alpine AS builder
+# 国内服务器可设 REGISTRY_MIRROR 拉取镜像，例: docker.m.daocloud.io/library/
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}node:20-alpine AS builder
 WORKDIR /app
 COPY package.json package-lock.json* ./
 RUN npm ci --legacy-peer-deps 2>/dev/null || npm install --legacy-peer-deps
 COPY . .
 RUN npm run build
 
-FROM nginx:alpine
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}nginx:alpine
 COPY --from=builder /app/dist /usr/share/nginx/html
 RUN echo 'server { listen 80; location /admin/ { alias /usr/share/nginx/html/; try_files $uri $uri/ /admin/index.html; } }' > /etc/nginx/conf.d/default.conf
 EXPOSE 80
diff --git a/server/.env.example b/server/.env.example
index 3f9ec21..c43a157 100644
--- a/server/.env.example
+++ b/server/.env.example
@@ -1,5 +1,6 @@
 # 复制为 .env 后按需修改（一键脚本会在缺失时自动复制）
-# Docker 部署时 MONGODB_URI 使用 mongo:27017（compose 服务名）
+# 本地开发：先启动 MongoDB，改为 mongodb://localhost:27017
+# Docker 部署：保持 mongodb://mongo:27017（compose 服务名）
 
 MONGODB_URI=mongodb://mongo:27017
 MONGODB_DB=yxd-agent-testing
diff --git a/server/Dockerfile b/server/Dockerfile
index c8c1ef3..515fab7 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -1,6 +1,8 @@
 # 需在项目根目录构建: docker build -f server/Dockerfile .
 # 使用 vendor 构建，无需在构建时访问 proxy.golang.org（服务器无外网时也能 build）
-FROM golang:1.21-alpine AS builder
+# 国内服务器可设 REGISTRY_MIRROR 拉取镜像，例: docker.m.daocloud.io/library/
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}golang:1.21-alpine AS builder
 WORKDIR /build
 COPY server/ ./
 # 构建参数：脚本可传 GOPROXY，避免 proxy.golang.org 超时；有 vendor 时主要用 -mod=vendor 离线构建
@@ -8,7 +10,8 @@ ARG GOPROXY=https://goproxy.cn,direct
 ENV GOPROXY=$GOPROXY
 RUN CGO_ENABLED=0 go build -mod=vendor -o /app/server .
 
-FROM alpine:3.19
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}alpine:3.19
 WORKDIR /app
 RUN apk add --no-cache ca-certificates tzdata
 ENV TZ=Asia/Shanghai
diff --git a/web/Dockerfile b/web/Dockerfile
index f0c1b5e..2b651f5 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -1,11 +1,14 @@
-FROM node:20-alpine AS builder
+# 国内服务器可设 REGISTRY_MIRROR 拉取镜像，例: docker.m.daocloud.io
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}node:20-alpine AS builder
 WORKDIR /app
 COPY package.json package-lock.json* ./
 RUN npm ci --legacy-peer-deps 2>/dev/null || npm install --legacy-peer-deps
 COPY . .
 RUN npm run build
 
-FROM nginx:alpine
+ARG REGISTRY_MIRROR=
+FROM ${REGISTRY_MIRROR}nginx:alpine
 COPY --from=builder /app/dist /usr/share/nginx/html
 RUN echo 'server { listen 80; root /usr/share/nginx/html; index index.html; location / { try_files $uri $uri/ /index.html; } }' > /etc/nginx/conf.d/default.conf
 EXPOSE 80