.no-webp .g-kvbg {background-size:cover}
.webp .g-kvbg {background-size:cover}
.g-kvbg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.g-kvbg video {
  position: absolute;
  top: 0;
  left: 50%;
  width: 100%;
  min-width: 1920px;
  min-height: 100%;
  -webkit-transform: translate(-50%, 0);
          transform: translate(-50%, 0);
  -o-object-fit: cover;
     object-fit: cover;
}
.no-webp .g-kvbg .video-bg {background-size:cover !important}
.webp .g-kvbg .video-bg {background-size:cover !important}
.no-webp .g-kvbg .video-bg {background:url(https://yjwujian.res.netease.com/pc/gw/20210531144736/img/video-kv_8f9f8203.jpg) no-repeat;
  background-position: center}
.webp .g-kvbg .video-bg {background:url(https://yjwujian.res.netease.com/pc/gw/20210531144736/img/video-kv_8f9f8203.webp) no-repeat;
  background-position: center}
.no-webp .g-kvbg .video-bg {background-position:center}
.webp .g-kvbg .video-bg {background-position:center}
.g-kvbg .video-bg {
  width: 100%;
  height: 100%;
  margin-top: 4%;
  position: relative;
}
.g-kvbg .video-bg .kv-copyright {
  color: #fff;
  position: absolute;
  right: 4%;
  bottom: 10%;
  font-size: 12px;
}