server {
    listen 80;
    server_name localhost;  # 通配符，匹配所有域名（适用于反向代理场景）

    # 开启 gzip 压缩
    gzip on;
    gzip_min_length 1k;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/javascript application/json application/javascript application/x-javascript application/xml;
    gzip_vary on;
    gzip_disable "MSIE [1-6]\.";

    root /usr/share/nginx/html;
    index index.html;

    # 解决 SPA 路由刷新 404 问题
    location / {
        try_files $uri $uri/ /index.html;
    }

    # 静态资源缓存配置
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }

    # 错误页面
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}