server {
    listen 80;
    listen [::]:80;
    server_name __DOMAIN__;

    root /var/www/acme;

    location /.well-known/acme-challenge/ {
        default_type "text/plain";
        try_files $uri =404;
    }

    location / {
        return 200 'ok';
        add_header Content-Type text/plain;
    }

    # 管理面板（Nginx 反向代理至 Flask，无需额外暴露 8444）
    location ^~ __PANEL_LOCATION__ {
__PANEL_ALLOW__
        proxy_pass http://127.0.0.1:5080/;
        proxy_http_version 1.1;
        proxy_connect_timeout 10s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
        proxy_set_header Host __DOMAIN__;
        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_set_header X-Forwarded-Host __DOMAIN__;
        proxy_set_header X-Forwarded-Prefix __PANEL_PREFIX__;
    }
}