diff --git a/README.md b/README.md
index 9255ef1..0aeaf83 100644
--- a/README.md
+++ b/README.md
@@ -229,25 +229,26 @@ NEXT_PUBLIC_API_URL=http://localhost:8000/api/v1
 
 **更新部署：**
 
+本地一键增量部署（推荐）：
+
+```bash
+python scripts/deploy_update.py
+```
+
+脚本会对比上次成功部署的 commit：仅前端改动只重建 `frontend`，仅后端改动只重建 `backend`，并启用 BuildKit npm/pip 缓存；健康检查改为短轮询。
+
+服务器手动全量：
+
 ```bash
-# SSH 登录服务器后（当前开发分支为 dev1）
 cd /opt/nomadweb
 git fetch origin && git checkout -B dev1 origin/dev1
-export DOMAIN=nomadweb.nomadro.com
+export DOMAIN=nomadweb.nomadro.com DOCKER_BUILDKIT=1
 export NEXT_PUBLIC_API_URL=https://nomadweb.nomadro.com/api/v1
 export NEXT_PUBLIC_SITE_URL=https://nomadweb.nomadro.com
 export CORS_ORIGINS=https://nomadweb.nomadro.com
 docker compose -f docker-compose.prod.yml up -d --build
 ```
 
-或使用 Docker Compose 生产配置：
-
-```bash
-docker compose -f docker-compose.prod.yml up -d --build
-cp deploy/caddy/nomadweb.caddy /etc/caddy/sites/nomadweb.caddy
-systemctl reload caddy
-```
-
 ### 本地 Docker Compose
 
 ```bash
diff --git a/backend/.dockerignore b/backend/.dockerignore
new file mode 100644
index 0000000..ca96bbd
--- /dev/null
+++ b/backend/.dockerignore
@@ -0,0 +1,14 @@
+__pycache__
+*.py[cod]
+*.egg-info
+.venv
+venv
+.env*
+!.env.example
+.git
+.gitignore
+*.md
+.pytest_cache
+.mypy_cache
+.ruff_cache
+tests
diff --git a/backend/Dockerfile b/backend/Dockerfile
index 0aa3ffe..31ed1b0 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -1,7 +1,10 @@
+# syntax=docker/dockerfile:1
+
 FROM python:3.12-slim
 WORKDIR /app
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+RUN --mount=type=cache,target=/root/.cache/pip \
+    pip install -r requirements.txt
 COPY . .
 EXPOSE 8000
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 153693f..429acc2 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -29,6 +29,7 @@ services:
   frontend:
     build:
       context: ./frontend
+      dockerfile: Dockerfile
       args:
         NEXT_PUBLIC_API_URL: ${NEXT_PUBLIC_API_URL:-https://nomadweb.nomadro.com/api/v1}
         NEXT_PUBLIC_SITE_URL: ${NEXT_PUBLIC_SITE_URL:-https://nomadweb.nomadro.com}
diff --git a/frontend/.dockerignore b/frontend/.dockerignore
new file mode 100644
index 0000000..53c1d2d
--- /dev/null
+++ b/frontend/.dockerignore
@@ -0,0 +1,15 @@
+node_modules
+.next
+.git
+.gitignore
+*.md
+.env*
+!.env.example
+Dockerfile*
+docker-compose*
+coverage
+.turbo
+.vercel
+npm-debug.log*
+playwright-report
+test-results
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index c47a9ed..09809f6 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -1,24 +1,28 @@
+# syntax=docker/dockerfile:1
+
 FROM node:20-alpine AS base
+WORKDIR /app
+ENV NEXT_TELEMETRY_DISABLED=1
 
 FROM base AS deps
-WORKDIR /app
 COPY package.json package-lock.json ./
-RUN npm ci --legacy-peer-deps || npm install --legacy-peer-deps
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci --legacy-peer-deps --prefer-offline
 
 FROM base AS builder
-WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 ARG NEXT_PUBLIC_API_URL=http://localhost:8000/api/v1
 ARG NEXT_PUBLIC_SITE_URL=http://localhost:3000
-ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
-ENV NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL
+ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL \
+    NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL \
+    NODE_ENV=production
 RUN npm run build
 
 FROM base AS runner
-WORKDIR /app
 ENV NODE_ENV=production
-RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 nextjs
+RUN addgroup --system --gid 1001 nodejs \
+ && adduser --system --uid 1001 nextjs
 COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static