.slide_banner {
  width: 1350px;
  height: 500px;
  /* margin: 50px auto 0; */
  margin: 0 auto;
}
.slide_banner .slide-carousel {
  /* margin-bottom: 20px; */
}
.slide_banner .slide-3d .desc {
  display: none;
}
.slide_banner .slide-3d .item-list li {
  /* width: 750px;
  height: 300px; */
  width: 730px;
  height: 500px;
  transition: all 0.5s ease-out;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 6px;
  overflow: hidden;
}
.slide_banner .slide-3d .item-list li.item0 {
  transform: translate3d(-355px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item1 {
  transform: translate3d(0, 0, 0) scale(0.7);
  transform-origin: 0 50%;
  opacity: 1;
  z-index: 2;
}
.slide_banner .slide-3d .item-list li.item2 {
  transform: translate3d(355px, 0, 0) scale(1);
  transform-origin: 0 50%;
  opacity: 1;
  z-index: 3;
}
.slide_banner .slide-3d .item-list li.item3 {
  transform: translate3d(710px, 0, 0) scale(0.7);
  transform-origin: 100% 50%;
  opacity: 1;
  z-index: 2;
}
.slide_banner .slide-3d .item-list li.item4 {
  transform: translate3d(1065px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item5 {
  transform: translate3d(1420px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item6 {
  transform: translate3d(1775px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item7 {
  transform: translate3d(2130px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item8 {
  transform: translate3d(2485px, 0, 0) scale(0.7);
}
.slide_banner .slide-3d .item-list li.item9 {
  transform: translate3d(2840px, 0, 0) scale(0.7);
}
.slide_banner .slide-2d .item-list li {
  width: 1350px;
  height: 500px;
  transition: all 0.5s ease-out;
  position: absolute;
  top: 0;
  left: 0;
}
.slide_banner .slide-2d .item-list li.item0 {
  transform: translateX(-1350px);
}
.slide_banner .slide-2d .item-list li.item1 {
  transform: translateX(0px);
}
.slide_banner .slide-2d .item-list li.item2 {
  transform: translateX(1350px);
}
.slide_banner .slide-2d .item-list li.item3 {
  transform: translateX(2,700px);
}
.slide_banner .slide-2d .item-list li.item4 {
  transform: translateX(4050px);
}
.slide_banner .slide-2d .item-list li.item5 {
  transform: translateX(5400px);
}
.slide_banner .slide-2d .item-list li.item6 {
  transform: translateX(6750px);
}
.slide_banner .slide-2d .item-list li.item7 {
  transform: translateX(8100px);
}
.slide_banner .slide-2d .item-list li.item8 {
  transform: translateX(10800px);
}
.slide_banner .slide-2d .item-list li.item9 {
  transform: translateX(12150px);
}

.slide-carousel {
  width: 100%;
  height: 100%;
  position: relative;
  /* overflow: hidden; */
}
.slide-carousel .item-list {
  position: relative;
  height: 100%;
  width: 100%;
  overflow: hidden;
}
.slide-carousel .item-list li .item-content {
  width: 100%;
  height: 100%;
  position: relative;
}
.slide-carousel .item-list li .item-content a {
  display: block;
  width: 100%;
  height: 100%;
}
.slide-carousel .item-list li .item-content a .cover-img {
  width: 100%;
  height: 100%;
}

.slide-carousel .item-list li .item-content .img {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
}
.slide-carousel .item-list li .item-content .img::before {
  display: block;
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.6);
}
.slide-3d .item-list li.item2 .item-content .img::before {
  display: none;
}

.slide-carousel .item-list li .item-content .img .paly_btn {
  width: 60px;
  height: 60px;
  position: absolute;
  right: 20px;
  bottom: 22px;
  display: none;
}
.slide-3d .item-list li.item2 .item-content .img .paly_btn {
  display: block;
}
.slide-carousel .item-list li .item-content .p {
  font-size: 26px;
  line-height: 36px;
  text-align: center;
  margin-top: 30px;
  display: none;
  color: #fff;
}
.slide-3d .item-list li.item2 .item-content .p {
  display: block;
}
.slide-carousel .indicator-list {
  position: absolute;
  bottom: 20px;
  left: 50%;
  margin-left: -63px;
  z-index: 100;
  color: #fff;
}
.slide-carousel .indicator-list a {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  overflow: hidden;
  background-color: #ccc;
  margin-left: 5px;
}
.slide-carousel .indicator-list a.selected {
  border-color: #ff6700;
  background-color: #5fff92;
}
.slide-carousel .controls {
  opacity: 1;
}
.slide-carousel .controls .btn {
  cursor: pointer;
  text-decoration: none;
  width: 25px;
  height: 41px;
  position: absolute;
  /* background-color: rgba(0, 0, 0, 0.2); */
  color: #fff;
  font-size: 35px;
  z-index: 2;
}
.slide-carousel .controls .item-prev {
  top: 50%;
  left: -45px;
  margin-top: -20px;
  background: url(/dctech2021/images/page3_triangle_icon1.png) no-repeat;
  background-size: 100% 100%;
}
.slide-carousel .controls .item-next {
  top: 50%;
  right: -45px;
  margin-top: -20px;
  background: url(/dctech2021/images/page3_triangle_icon2.png) no-repeat;
  background-size: 100% 100%;
}
.slide-carousel .desc {
  height: 72px;
  width: 100%;
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 99;
}
.slide-carousel .desc strong {
  color: #fff;
  font-size: 20px;
  line-height: 72px;
  margin-left: 20px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.slide-carousel:hover .controls {
  opacity: 1;
  transition: opacity 0.5s ease;
}