diff --git a/backend/Dockerfile.dev b/backend/Dockerfile.dev
index dc7c1d2..dd5ca45 100644
--- a/backend/Dockerfile.dev
+++ b/backend/Dockerfile.dev
@@ -3,6 +3,8 @@ WORKDIR /app
 
 FROM base AS dev
 # 源码由 compose 挂载进 /app;镜像只带工具链 + delve
+# 国内直连 proxy.golang.org 会超时,goproxy.cn 走直连
+ENV GOPROXY=https://goproxy.cn,direct
 RUN go install github.com/go-delve/delve/cmd/dlv@latest
 EXPOSE 8080 2345
-CMD ["sh", "-c", "go mod download && dlv debug ./cmd/server --headless --listen=0.0.0.0:2345 --api-version=2 --continue --log"]
+CMD ["sh", "-c", "go mod download && dlv debug ./cmd/server --headless --listen=0.0.0.0:2345 --api-version=2 --accept-multiclient --continue --log"]
diff --git a/backend/__debug_bin1866936080 b/backend/__debug_bin1866936080
new file mode 100755
index 0000000..5bed864
Binary files /dev/null and b/backend/__debug_bin1866936080 differ
diff --git a/backend/__debug_bin2827366225 b/backend/__debug_bin2827366225
new file mode 100755
index 0000000..5bed864
Binary files /dev/null and b/backend/__debug_bin2827366225 differ
diff --git a/deploy/docker-compose.dev.yml b/deploy/docker-compose.dev.yml
index 2f6c606..1e2c8d4 100644
--- a/deploy/docker-compose.dev.yml
+++ b/deploy/docker-compose.dev.yml
@@ -1,10 +1,48 @@
+# dev:源码热挂载 + target: dev 镜像 + delve :2345,infra 端口暴露宿主,healthcheck 门控
+# 起停用 down(不是 rm),否则 web 的匿名 node_modules 卷会成孤儿
 name: booklib
 services:
   postgres:
     image: postgres:16-alpine
     environment: { POSTGRES_USER: lib, POSTGRES_PASSWORD: lib, POSTGRES_DB: lib }
-    ports: ["5433:5432"]
+    ports: ["5432:5432"]
+    volumes: [postgres_data:/var/lib/postgresql/data]
     healthcheck: { test: ["CMD-SHELL", "pg_isready -U lib"], interval: 2s, timeout: 2s, retries: 30 }
   redis:
     image: redis:7-alpine
-    ports: ["6380:6379"]
+    command: ["redis-server", "/usr/local/etc/redis/redis.conf"]
+    ports: ["6379:6379"]
+    volumes:
+      - ./redis/redis.conf:/usr/local/etc/redis/redis.conf:ro
+      - redis_data:/data
+  api:
+    build: { context: .., dockerfile: backend/Dockerfile.dev, target: dev }
+    command: sh -c "go mod download && dlv debug ./cmd/server --headless --listen=0.0.0.0:2345 --api-version=2 --accept-multiclient --continue --log"
+    environment:
+      DATABASE_URL: postgres://lib:lib@postgres:5432/lib?sslmode=disable
+      REDIS_URL: redis://redis:6379
+      JWT_SECRET: ${JWT_SECRET}
+      ADMIN_USER: ${ADMIN_USER}
+      ADMIN_PASSWORD: ${ADMIN_PASSWORD}
+      BOOKS_DIR: /data/books
+      CACHE_DIR: /data/books/cache
+      SCAN_INTERVAL_SEC: ${SCAN_INTERVAL_SEC:-60}
+    volumes:
+      - ../backend:/app
+      - ./api/storage:/data/books
+    ports: ["${DELVE_PORT:-2345}:2345"]
+    depends_on:
+      postgres: { condition: service_healthy }
+      redis: { condition: service_started }
+  web:
+    build: { context: .., dockerfile: web/Dockerfile.dev, target: dev }
+    command: npm run dev -- --host 0.0.0.0
+    environment: { VITE_PROXY_TARGET: http://api:8080 }
+    volumes:
+      - ../web:/app
+      - /app/node_modules
+    ports: ["5173:5173"]
+    depends_on: [api]
+volumes:
+  postgres_data:
+  redis_data:
diff --git a/web/vite.config.ts b/web/vite.config.ts
index d89a70d..fca6d67 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -46,5 +46,5 @@ export default defineConfig({
       },
     }),
   ],
-  server: { proxy: { "/api": "http://localhost:8080" } },
+  server: { proxy: { "/api": process.env.VITE_PROXY_TARGET ?? "http://localhost:8080" } },
 });