+---------------------------------------------+ | REQUEST | +---------------------------------------------+ GET / HTTP/1.1 Host: www.baike4.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Traceparent: 00-f7c42477cd9d8218aecacd58eb4b6ae9-1d6cef42ff91761d-01 Accept-Encoding: gzip +---------------------------------------------+ | RESPONSE | +---------------------------------------------+ HTTP/1.1 503 Service Temporarily Unavailable Connection: close Transfer-Encoding: chunked Content-Type: text/html;charset=utf-8 Date: Fri, 19 Dec 2025 12:31:50 GMT Server: openresty