diff --git a/.github/workflows/README.md b/.github/workflows/README.md
index 5e664f9..d2076ff 100644
--- a/.github/workflows/README.md
+++ b/.github/workflows/README.md
@@ -99,9 +99,9 @@ docker login crpi-u2903xccyzd6nqnc.cn-shanghai.personal.cr.aliyuncs.com \
 curl -fsSL https://get.docker.com -o get-docker.sh
 sudo sh get-docker.sh
 
-# 安装 Docker Compose
-sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
-sudo chmod +x /usr/local/bin/docker-compose
+# Docker Compose V2（命令为 docker compose，带空格）
+# 多数 Docker 安装已包含插件；若提示找不到 compose：
+# sudo apt-get update && sudo apt-get install -y docker-compose-plugin
 ```
 
 ### 4. 首次部署准备
@@ -164,7 +164,7 @@ mkdir -p /opt/life-echo/api
 ### 4. 容器启动失败
 
 - 检查 docker-compose.yml 文件是否正确
-- 查看容器日志：`docker-compose logs`
+- 查看容器日志：`docker compose logs`
 - 确认环境变量配置正确
 
 ## 手动触发
diff --git a/.github/workflows/docker-build-deploy.yml b/.github/workflows/docker-build-deploy.yml
index 0da841a..7d7231a 100644
--- a/.github/workflows/docker-build-deploy.yml
+++ b/.github/workflows/docker-build-deploy.yml
@@ -244,9 +244,8 @@ jobs:
             exit 1
           fi
 
-          echo "上传候选 compose、Caddyfile 与环境文件..."
+          echo "上传候选 compose 与环境文件..."
           scp -P "$SSH_PORT" ./api/docker-compose.yml "$SSH_USER@$SSH_HOST:$COMPOSE_DIR/api/docker-compose.candidate.yml"
-          scp -P "$SSH_PORT" ./api/Caddyfile "$SSH_USER@$SSH_HOST:$COMPOSE_DIR/api/Caddyfile.candidate"
           scp -P "$SSH_PORT" "$ENV_SRC" "$SSH_USER@$SSH_HOST:$COMPOSE_DIR/api/.env.candidate"
 
           ssh -p "$SSH_PORT" "$SSH_USER@$SSH_HOST" "
@@ -271,9 +270,6 @@ jobs:
             if [ -f '$COMPOSE_FILE' ]; then
               cp '$COMPOSE_FILE' '${COMPOSE_FILE}.predeploy'
             fi
-            if [ -f 'Caddyfile' ]; then
-              cp 'Caddyfile' 'Caddyfile.predeploy'
-            fi
             if [ -f '.env.production' ]; then
               cp '.env.production' '.env.production.predeploy'
             fi
@@ -281,13 +277,12 @@ jobs:
               cp '.env' '.env.predeploy'
             fi
             mv 'docker-compose.candidate.yml' '$COMPOSE_FILE'
-            mv 'Caddyfile.candidate' 'Caddyfile'
             mv '.env.candidate' '.env'
-            docker-compose -f '$COMPOSE_FILE' up -d --remove-orphans
+            docker compose -f '$COMPOSE_FILE' up -d --remove-orphans
             echo '等待服务启动...'
             sleep 20
             docker image prune -f || true
-            docker-compose -f '$COMPOSE_FILE' ps
+            docker compose -f '$COMPOSE_FILE' ps
           "
 
       - name: Verify deployment
@@ -296,12 +291,12 @@ jobs:
           ssh -p "$SSH_PORT" "$SSH_USER@$SSH_HOST" "
             set -euo pipefail
             cd '$COMPOSE_DIR/api'
-            docker-compose ps
+            docker compose ps
 
-            API_CID=\$(docker-compose ps -q api)
+            API_CID=\$(docker compose ps -q api)
             if [ -z \"\$API_CID\" ]; then
               echo '未找到 api 容器'
-              docker-compose logs --tail=80 api || true
+              docker compose logs --tail=80 api || true
               exit 1
             fi
 
@@ -317,20 +312,9 @@ jobs:
 
             if [ \"\$API_HEALTH\" != 'healthy' ]; then
               echo 'api 容器未在预期时间内变为 healthy'
-              docker-compose logs --tail=80 api || true
+              docker compose logs --tail=80 api || true
               exit 1
             fi
 
-            CADDY_CID=\$(docker-compose ps -q caddy || true)
-            if [ -n \"\$CADDY_CID\" ]; then
-              CADDY_STATE=\$(docker inspect -f '{{.State.Status}}' \"\$CADDY_CID\")
-              echo \"caddy state: \$CADDY_STATE\"
-              if [ \"\$CADDY_STATE\" != 'running' ]; then
-                echo 'caddy 容器未处于 running 状态'
-                docker-compose logs --tail=80 caddy || true
-                exit 1
-              fi
-            fi
-
-            docker-compose logs --tail=50 api
+            docker compose logs --tail=50 api
           "
diff --git a/README.md b/README.md
index 4504ec2..8ba2dd4 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ uv sync --dev
 # 参考 api/README.md 中的环境变量配置说明
 
 # 4. 启动 PostgreSQL 和 Redis
-docker-compose -f docker-compose.dev.yml up -d
+docker compose -f docker-compose.dev.yml up -d
 
 # 5. 数据库迁移
 # uv run alembic upgrade head
diff --git a/api/.env.example b/api/.env.example
index dbf0fc4..7316e32 100644
--- a/api/.env.example
+++ b/api/.env.example
@@ -7,6 +7,13 @@
 # 不要把真实密钥提交到仓库。
 # =============================================================================
 
+# =============================================================================
+# Docker Compose（宿主机独立 Caddy 反代到本 API）
+# =============================================================================
+# 映射到宿主机的端口，默认 8000；与同机其它项目冲突时改为未占用端口，并在独立 Caddy 的 Caddyfile 中 reverse_proxy 到 127.0.0.1:该端口。
+# LIFE_ECHO_API_HOST_PORT=8000
+# 若 Caddy 跑在独立容器且非 host 网络，不要用 127.0.0.1，应把 Caddy 加入与本 compose 相同的 Docker 网络，并对 http://life-echo-api-prod:8000 做 reverse_proxy。
+
 # =============================================================================
 # Logging（loguru sink 最低级别：TRACE / DEBUG / INFO / WARNING / ERROR / CRITICAL）
 # =============================================================================
diff --git a/api/Caddyfile b/api/Caddyfile
deleted file mode 100644
index 1083339..0000000
--- a/api/Caddyfile
+++ /dev/null
@@ -1,4 +0,0 @@
-{$CADDY_PRIMARY_DOMAIN:lifecho.worldsplats.com} {
-    encode zstd gzip
-    reverse_proxy api:8000
-}
diff --git a/api/README.md b/api/README.md
index 1cca388..0e85d6d 100644
--- a/api/README.md
+++ b/api/README.md
@@ -138,7 +138,7 @@ cd api
 cd api
 
 # 1. 启动 PostgreSQL + Redis
-docker-compose -f docker-compose.dev.yml up -d
+docker compose -f docker-compose.dev.yml up -d
 
 # 2. 安装依赖
 pip install -r requirements.txt
@@ -178,10 +178,10 @@ cp .env .env.prod
 # 编辑 .env.prod
 
 # 启动所有服务
-docker-compose up -d
+docker compose up -d
 
 # 查看日志
-docker-compose logs -f
+docker compose logs -f
 ```
 
 服务启动后，访问：
diff --git a/api/deploy.sh b/api/deploy.sh
index 4929d6c..8ccbaa9 100755
--- a/api/deploy.sh
+++ b/api/deploy.sh
@@ -213,9 +213,9 @@ main() {
     print_success "短信验证码功能部署完成！"
     echo
     print_info "后续步骤："
-    echo "  1. 使用 Docker 部署: docker-compose up -d"
+    echo "  1. 使用 Docker 部署: docker compose up -d"
     echo "  2. 或使用 Systemd 部署: sudo systemctl start life-echo-api"
-    echo "  3. 查看日志: docker-compose logs -f 或 journalctl -u life-echo-api -f"
+    echo "  3. 查看日志: docker compose logs -f 或 journalctl -u life-echo-api -f"
     echo "  4. 运行测试: python test_sms_verification.py"
     echo "  5. 查看部署文档: docs/部署指南.md"
     echo
diff --git a/api/docker-compose.dev.yml b/api/docker-compose.dev.yml
index 66830b4..865b21a 100644
--- a/api/docker-compose.dev.yml
+++ b/api/docker-compose.dev.yml
@@ -1,5 +1,5 @@
 # 开发环境 Docker Compose
-# 使用方法: docker-compose -f docker-compose.dev.yml up -d
+# 使用方法: docker compose -f docker-compose.dev.yml up -d
 
 services:
   # PostgreSQL 数据库（pg17 + pgvector，memory 模块需要 vector 类型）
diff --git a/api/docker-compose.yml b/api/docker-compose.yml
index f199ba6..5b63f20 100644
--- a/api/docker-compose.yml
+++ b/api/docker-compose.yml
@@ -58,8 +58,10 @@ services:
       dockerfile: Dockerfile
     image: life-echo-api:latest
     container_name: life-echo-api-prod
-    expose:
-      - "8000"
+    # 独立 Caddy（宿主机或其它 compose）经 HTTPS 反代；仅绑定本机回环，避免与机上其它项目端口直接对公网。
+    # 若与 Cosmetic 等共用主机且 8000 已被占用，在 .env 中设置 LIFE_ECHO_API_HOST_PORT=其它端口并在 Caddyfile 中一致。
+    ports:
+      - "127.0.0.1:${LIFE_ECHO_API_HOST_PORT:-8000}:8000"
     env_file:
       - .env
     environment:
@@ -118,28 +120,6 @@ services:
         max-size: "10m"
         max-file: "3"
 
-  caddy:
-    image: m.daocloud.io/docker.io/library/caddy:2-alpine
-    container_name: life-echo-caddy
-    depends_on:
-      api:
-        condition: service_healthy
-    ports:
-      - "80:80"
-      - "443:443"
-    volumes:
-      - ./Caddyfile:/etc/caddy/Caddyfile:ro
-      - caddy_data:/data
-      - caddy_config:/config
-    restart: always
-    networks:
-      - life-echo-network
-    logging:
-      driver: "json-file"
-      options:
-        max-size: "10m"
-        max-file: "3"
-
   # Celery Beat（定时任务调度，可选）
   # celery-beat:
   #   build:
@@ -193,7 +173,3 @@ volumes:
     driver: local
   redis_data:
     driver: local
-  caddy_data:
-    driver: local
-  caddy_config:
-    driver: local
diff --git a/api/docs/本地开发环境配置.md b/api/docs/本地开发环境配置.md
index 55633d4..4655865 100644
--- a/api/docs/本地开发环境配置.md
+++ b/api/docs/本地开发环境配置.md
@@ -30,7 +30,7 @@
 
 ```bash
 cd api
-docker-compose -f docker-compose.dev.yml up -d
+docker compose -f docker-compose.dev.yml up -d
 ```
 
 验证 Redis 是否运行：
@@ -138,13 +138,13 @@ cp .env .env.prod
 # 编辑 .env.prod 配置生产环境变量
 
 # 启动所有服务
-docker-compose up -d
+docker compose up -d
 
 # 查看日志
-docker-compose logs -f
+docker compose logs -f
 
 # 停止服务
-docker-compose down
+docker compose down
 ```
 
 ### 服务扩展
@@ -153,7 +153,7 @@ docker-compose down
 
 ```bash
 # 启动额外的 worker
-docker-compose up -d --scale celery-worker=3
+docker compose up -d --scale celery-worker=3
 ```
 
 ### 监控（可选）
@@ -161,7 +161,7 @@ docker-compose up -d --scale celery-worker=3
 启用 Flower 监控面板：
 
 1. 编辑 `docker-compose.yml`，取消 `flower` 服务的注释
-2. 重启服务：`docker-compose up -d`
+2. 重启服务：`docker compose up -d`
 3. 访问 http://localhost:5555 查看 Celery 任务监控
 
 ## 常见问题
diff --git a/api/docs/部署指南.md b/api/docs/部署指南.md
index 4a80ff9..dda4786 100644
--- a/api/docs/部署指南.md
+++ b/api/docs/部署指南.md
@@ -207,7 +207,7 @@ volumes:
 
 ```bash
 cd api
-docker-compose up -d
+docker compose up -d
 ```
 
 #### 5.2 使用Systemd部署
@@ -297,7 +297,7 @@ curl -X POST http://localhost:8000/api/auth/sms/send \
 
 ```bash
 # Docker部署
-docker-compose logs -f api
+docker compose logs -f api
 
 # Systemd部署
 sudo journalctl -u life-echo-api -f
@@ -541,7 +541,7 @@ SELECT
 
 1. 停止新版本服务
 ```bash
-docker-compose down
+docker compose down
 # 或
 sudo systemctl stop life-echo-api
 ```
@@ -558,7 +558,7 @@ git checkout previous-version
 
 4. 重启服务
 ```bash
-docker-compose up -d
+docker compose up -d
 # 或
 sudo systemctl start life-echo-api
 ```
diff --git a/app-expo/src/core/config.ts b/app-expo/src/core/config.ts
index 27ae64c..1f2c98b 100644
--- a/app-expo/src/core/config.ts
+++ b/app-expo/src/core/config.ts
@@ -1,6 +1,6 @@
 export const config = {
-  apiBaseUrl: process.env.EXPO_PUBLIC_API_URL ?? 'http://192.168.10.178:8000',
-  wsBaseUrl: process.env.EXPO_PUBLIC_WS_URL ?? 'ws://192.168.10.178:8000',
+  apiBaseUrl: process.env.EXPO_PUBLIC_API_URL ?? 'http://192.168.10.151:8000',
+  wsBaseUrl: process.env.EXPO_PUBLIC_WS_URL ?? 'ws://192.168.10.151:8000',
   isDebugMode: __DEV__,
 
   api: {