.index,.index-pc,.page-wrapper,body,html{width:100%;height:100%;position:relative;z-index:1;overflow:hidden}.index-pc .mask,.index-pc .px-content,.index-pc .videobox{width:100%;height:100%;position:absolute;z-index:1;top:0;left:0}.index-pc video{display:block;width:100%;height:100%;object-fit:cover;object-position:center center}.index-pc .mask{background-color:rgba(0,0,0,.7)}.index-pc .px-content{box-sizing:content-box;padding:0 0 0 256px;display:flex;flex-direction:column;justify-content:center;width:420px}.index-pc .px-download{margin-top:24PX;display:flex}.index-pc .px-qrcode{margin-left:16PX}.index-pc .px-desc{margin-top:48PX;color:#fff;font-size:18PX;line-height:30PX}.index-pc .px-foot{color:#999;font-size:14px;position:absolute;z-index:1;bottom:20px;width:100%;text-align:center}.h-screen{position:relative;z-index:1;height:100vh}