server {
    listen 80;
    server_name localhost;
    root /usr/share/nginx/html;
    index index.html;

    # API 代理到 Gateway
    location /api/ {
        proxy_pass http://gateway:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    # HTML 文件禁用缓存
    location ~* \.html$ {
        add_header Cache-Control "no-cache, no-store, must-revalidate";
        add_header Pragma "no-cache";
        add_header Expires "0";
        try_files $uri $uri/ /index.html;
    }

    # 静态资源
    location / {
        try_files $uri $uri/ /index.html;
    }

    # 缓存静态资源（JS/CSS/图片等）
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1d;
        add_header Cache-Control "public, immutable";
    }
}