.svideo-box ul {padding: 20px 0;}
.svideo-box ul::after {content: "";display: block;clear: both;}
.svideo-box li {width: 575px;float: left;}
.svideo-box li.li-2 {float: right;}
.svideo-box li .data-media {width: 575px;height: 324px;background-color: #000;position: relative;cursor: pointer;}
.svideo-box li .data-media .data-video,.svideo-box li .data-media .data-video video {position: relative;width: 100%;height: 100%;display: block;}
.svideo-box li .data-media .data-pic,.svideo-box li .data-media .data-pic img {position: relative;width: 100%;height: 100%;display: block;}
.svideo-box li .data-media .data-pic {position: absolute;top:0;left: 0;}
.svideo-box li .data-media .data-btn {position: absolute;top:50%;left: 50%;width: 54px;height: 54px;margin-top: -27px;margin-left: -27px;background: url(https://v2.cri.cn/M00/40/C1/CqgNOlcPNseAK42tAAAAAAAAAAA2830949.icon-btn.png) no-repeat center center;}
.svideo-box li .data-title {font-size: 20px;line-height: 74px;text-align: center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}