.cert-bg{
  width: 750px;
  height: 1320px;
  margin: 0 auto;
  background: url("https://oss.wsdns.cn/20250304/5147356628a3460e811cf5fb90df26a7.png") no-repeat;
  background-size: 100%;
}
.cert-content{
  width: 480px;
  height: 720px;
  font-size: 24px;
  padding-top: 250px;
}
