/*//全屏弹框广告：*/

.dialog{visibility:hidden;position:fixed;top:0;left:0;width:100%;height:100%;z-index:2200;transition:visibility .3s}
.dialog .mask{position:fixed;top:0;left:0;width:100%;height:100%;background-color:black;opacity:.6;z-index:190;transition:visibility .3s}
.dialog .box{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:200}
.dialog .dialog-wrapper{transform:scale(0);transition:all .3s;z-index:220;position:relative}
.dialog{z-index:9999999}
.act_dialog .dialog-wrapper{width:auto;max-height:535px}
.act_dialog .mask{opacity:.8}
.actImage{cursor:pointer}
.actImage img{height:100%;max-width:550px;max-height:535px;display:block;margin:0 auto}
.act_dialog .close{position:absolute;bottom:-70px;left:50%;transform:translateX(-50%)}
.dialog_show .dialog-wrapper{transform:scale(1)}
.dialog_show{visibility:visible}
.header-banners{width:100%;height:80px;position:fixed;background:#fff}
.header-banners img{width:100%;max-width:1920px;height:100%;display:block;margin:0 auto}



/*直播课预约*/
.QRCodeBox{position:relative;padding:38px 0 36px;text-align:center;width:400px;min-height:422px;border-radius:19.81px;background:linear-gradient(0deg,#F9FBFF 0%,#D0DBFF 97%)}
.QRCodeBox::before{display:block;position:absolute;content:"";left:13px;top:5px;width:309px;height:310px;background-size:100% 100%}
.QRCodeBox .dialog-close{position:absolute;right:-26px;top:-26px;cursor:pointer}
.QRCodeBox .dialog-tit{line-height:28px;font-size:24px;font-weight:bold;color:#3D3D3D;margin-bottom:11px;position:relative;z-index:10}
.QRCodeBox .dialog-describe{line-height:21px;font-size:18px;font-weight:bold;color:#FF3B3B;position:relative;z-index:10}
.QRCodeBox .QRImage{margin:18px auto;display:block;width:200px;height:200px;border-radius:7.92px;object-fit:cover;position:relative;z-index:10;background:#fff}
.QRCodeBox .scan{margin-bottom:13px}
.QRCodeBox .scan,.QRCodeBox .tips{line-height:19px;color:#28293D}
.wrapper{min-height:350px}