@media (min-width: 1200px) {
  .banner-video {
    width: 1920px;
    height: 450px;
    position: relative;
    margin: 0 0 60px -960px;
    left: 50%;
  }
  .banner-video .slide-3d .desc {
    display: none;
  }
  .banner-video .slide-3d .item-list li {
    width: 800px;
    height: 100%;
    transition: all 0.5s ease-out;
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
  }
  .banner-video .slide-3d .item-list li.item0 {
    transform: translate3d(-560px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item1 {
    transform: translate3d(0, 0, 0) scale(0.8);
    transform-origin: 0 50%;
    opacity: 1;
    z-index: 2;
  }
  .banner-video .slide-3d .item-list li.item2 {
    transform: translate3d(560px, 0, 0) scale(1);
    transform-origin: 0 50%;
    opacity: 1;
    z-index: 3;
  }
  .banner-video .slide-3d .item-list li.item3 {
    transform: translate3d(1120px, 0, 0) scale(0.8);
    transform-origin: 100% 50%;
    opacity: 1;
    z-index: 2;
  }
  .banner-video .slide-3d .item-list li.item4 {
    transform: translate3d(1680px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item5 {
    transform: translate3d(2240px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item6 {
    transform: translate3d(2800px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item7 {
    transform: translate3d(3360px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item8 {
    transform: translate3d(3920px, 0, 0) scale(0.8);
  }
  .banner-video .slide-3d .item-list li.item9 {
    transform: translate3d(4480px, 0, 0) scale(0.8);
  }
}
@media (max-width: 1200px) {
  .banner-video {
    width: 100%;
  }
  .banner-video .item-content video {
    width: 50%;
    float: left;
    margin-bottom: 25px;
  }
  .banner-video .item0 video {
    width: 100%;
  }
}