diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index c2c12bf..d1b13f7 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -1,9 +1,9 @@
 version: '3.8'
 
 services:
-  # --- 数据库 (保持不变) ---
+  # --- 数据库 (已修改为自带 pgvector 的镜像) ---
   db:
-    image: postgres:15-alpine
+    image: pgvector/pgvector:pg15
     container_name: inventory_db_prod
     restart: always
     environment:
@@ -11,6 +11,7 @@ services:
       POSTGRES_PASSWORD: StrongPassword123!
       POSTGRES_DB: inventory_system
     volumes:
+      # 数据卷保持不变，你的历史数据不会丢失！
       - ./pgdata_prod:/var/lib/postgresql/data
 
   # --- 后端 (Flask) (保持不变) ---
@@ -29,7 +30,7 @@ services:
     depends_on:
       - db
 
-  # --- 前端 (Nginx + Vue) (这是需要修改的部分) ---
+  # --- 前端 (Nginx + Vue) (包含 HTTPS 配置) ---
   frontend:
     build:
       context: ./inventory-web