diff --git a/README.md b/README.md
index 1f2571d..73f9574 100644
--- a/README.md
+++ b/README.md
@@ -100,12 +100,14 @@ docker compose logs -f ai-service
 | 服务 | 地址 | 说明 |
 |------|------|------|
 | 前端管理界面 | http://服务器IP:8181 | Vue 管理后台 |
-| 后端 API | http://服务器IP:8080 | FastAPI 服务 |
-| API 文档 | http://服务器IP:8080/docs | Swagger UI |
+| 后端 API | http://服务器IP:8182 | FastAPI 服务（Java渠道侧调用） |
+| API 文档 | http://服务器IP:8182/docs | Swagger UI |
 | Qdrant 控制台 | http://服务器IP:6333/dashboard | 向量数据库管理 |
 | Ollama API | http://服务器IP:11434 | 嵌入模型服务 |
 
-> **注意**: 如果宿主机 8080 端口已被占用，可以只通过前端管理界面 (8181) 访问，前端会自动代理后端 API 请求。
+> **端口说明**:
+> - `8181`: 前端管理界面，内部代理后端 API
+> - `8182`: 后端 API，供 Java 渠道侧直接调用
 
 ## 服务架构
 
diff --git a/deploy/nginx.conf.example b/deploy/nginx.conf.example
index c4fda2f..c67246e 100644
--- a/deploy/nginx.conf.example
+++ b/deploy/nginx.conf.example
@@ -2,17 +2,24 @@
 # 将此文件放置于 /etc/nginx/conf.d/ai-service.conf
 # 或 include 到主配置文件中
 
+# 后端 API 上游（供 Java 渠道侧调用）
+upstream ai_service_backend {
+    server 127.0.0.1:8182;
+}
+
+# 前端管理界面上游
 upstream ai_service_admin {
     server 127.0.0.1:8181;
 }
 
+# 前端管理界面
 server {
     listen 80;
     server_name your-domain.com;  # 替换为你的域名或服务器IP
 
     # 访问日志
-    access_log /var/log/nginx/ai-service.access.log;
-    error_log /var/log/nginx/ai-service.error.log;
+    access_log /var/log/nginx/ai-service-admin.access.log;
+    error_log /var/log/nginx/ai-service-admin.error.log;
 
     location / {
         proxy_pass http://ai_service_admin;
@@ -32,7 +39,39 @@ server {
     }
 }
 
+# 后端 API（供 Java 渠道侧调用）
+# 如果使用域名，可以用不同的路径或子域名
+# 示例：api.your-domain.com 或 your-domain.com/api/
+server {
+    listen 80;
+    server_name api.your-domain.com;  # 替换为 API 子域名
+
+    # 访问日志
+    access_log /var/log/nginx/ai-service-api.access.log;
+    error_log /var/log/nginx/ai-service-api.error.log;
+
+    location / {
+        proxy_pass http://ai_service_backend;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_cache_bypass $http_upgrade;
+
+        # SSE 流式响应支持
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 75s;
+        proxy_buffering off;
+    }
+}
+
+# ============================================================
 # HTTPS 配置示例 (使用 Let's Encrypt)
+# ============================================================
+
 # server {
 #     listen 443 ssl http2;
 #     server_name your-domain.com;
@@ -60,9 +99,36 @@ server {
 #     }
 # }
 
+# server {
+#     listen 443 ssl http2;
+#     server_name api.your-domain.com;
+#
+#     ssl_certificate /etc/letsencrypt/live/your-domain.com/fullchain.pem;
+#     ssl_certificate_key /etc/letsencrypt/live/your-domain.com/privkey.pem;
+#
+#     ssl_protocols TLSv1.2 TLSv1.3;
+#     ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;
+#     ssl_prefer_server_ciphers off;
+#
+#     location / {
+#         proxy_pass http://ai_service_backend;
+#         proxy_http_version 1.1;
+#         proxy_set_header Upgrade $http_upgrade;
+#         proxy_set_header Connection 'upgrade';
+#         proxy_set_header Host $host;
+#         proxy_set_header X-Real-IP $remote_addr;
+#         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+#         proxy_set_header X-Forwarded-Proto $scheme;
+#         proxy_cache_bypass $http_upgrade;
+#         proxy_read_timeout 300s;
+#         proxy_connect_timeout 75s;
+#         proxy_buffering off;
+#     }
+# }
+
 # HTTP 重定向到 HTTPS
 # server {
 #     listen 80;
-#     server_name your-domain.com;
+#     server_name your-domain.com api.your-domain.com;
 #     return 301 https://$server_name$request_uri;
 # }
diff --git a/docker-compose.yaml b/docker-compose.yaml
index eb6522b..eb0947b 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -8,7 +8,7 @@ services:
     container_name: ai-service
     restart: unless-stopped
     ports:
-      - "8080:8080"
+      - "8182:8080"
     environment:
       - AI_SERVICE_DEBUG=false
       - AI_SERVICE_LOG_LEVEL=INFO