/* 上書きは auction ページ内だけに限定 */
.eap-auction .eap-hero-inner{position:relative;background:#000}
@supports (aspect-ratio: 16/9){
  .eap-auction .eap-hero-inner{padding-top:0;aspect-ratio:16/9}
  .eap-auction .eap-hero-inner iframe{height:100%}
}
/* 念のため iframe を常に全面フィット */
.eap-auction .eap-hero-inner iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}