/* 头部区域 */
#CyberDataHub .header .logo {
  background: transparent url('../../img/iai/cdh_logo.png') no-repeat;
  background-size: 100%;
}
#CyberDataHub .content-wrapper .core-function {
  height: 891px;
  background: transparent url('../../img/iai/polygon.png') center -382px no-repeat;
}