各位好，小弟爬取yes123網站首頁，提交表單數據，如查詢地區、職務等，查看返回的Response，表單確實有填入POST提交的數據，但未取得相應的內容，例如提交地區設定基隆全區，返回卻出現其它縣市資料，職務亦同。
不知哪裡出錯，請各位高手幫忙，謝謝。
程式碼如下：

string url = "https://www.yes123.com.tw/wk_index/joblist.asp";
HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;
request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36";
request.Host = "www.yes123.com.tw";
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";

string postParam =
    "find_zone_mode1=1_1001_0001_000" +
    "&" +
    "s_find_zone_mode1=基隆全區" +
    "&" +
    "find_work_mode1=2_1001_0001_0000" +
    "&" +
    "s_find_work_mode1=行政／總務全部" +
    "&" +
    "order_ascend=desc" +
    "&" +
    "strrec=0" +
    "&" +
    "search_type=job" +
    "&" +
    "search_from=joblist";
    
Encoding encoding = Encoding.UTF8;
byte[] postData = encoding.GetBytes(postParam);

request.ContentLength = postData.Length;
using (Stream requestStream = request.GetRequestStream())
{
    requestStream.Write(postData, 0, postData.Length);
}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
var result = "";
using (Stream responseStream = response.GetResponseStream())
{
    using (StreamReader streamReader = new StreamReader(responseStream, encoding))
    {
        result = streamReader.ReadToEnd();
        Console.WriteLine(result);
    }
}