server {
    listen       7860;
    server_name  localhost;

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

    # Single Page App: 如果找不到请求的静态文件，则返回 index.html
    location / {
        try_files $uri $uri/ /index.html;
    }

    # 可选：短时间缓存静态资源
    location ~* \.(?:css|js|jpg|jpeg|gif|png|svg|ico|woff2?|ttf|eot)$ {
        expires 7d;
        add_header Cache-Control "public";
    }
}