.popup-mask{display:none;position:absolute;top:0;left:0;width:100%;min-height:100%;padding:1rem 0 .2rem;background-color:rgba(0,0,0,.8);overflow:auto;}
.popup-mask .popup{position:relative;max-width:10.8rem;padding:0 0.3rem 0.8rem;margin:0 auto;}
/* .popup-close{width:21.5%;padding-top:9.5%;margin:5% auto 0;background:url(../images/knowledge/popup-btn.png) no-repeat center;background-size:100%;cursor:pointer;transition:transform .4s ease-out;} */
.popup-close{background-repeat:no-repeat;background-position:center;background-size:100%;cursor:pointer;}
.pc .popup-close{position:fixed;left:50%;top:50%;z-index:2;width:.95rem;padding-top:2.15rem;margin-left:6.02rem;background-image:url(../images/expand/popup-btn.png);transition:transform .4s ease-out}
.phone .popup-close{width:21.5%;padding-top:9.5%;margin:5% auto 0;background-image:url(../images/expand/popup-btn-phone.png);}
.popup-close:hover{transform:translateY(-4px);}
.img-absolute1-2-1{top:5%;right:2.5%;width:32.1%}
.img-absolute1-3-1{top:9.7%;left:10.8%;width:52.5%;}
.img-absolute1-3-2{top:31.5%;right:2%;width:52.5%;}
.img-absolute1-3-3{top:52.1%;right:2%;width:87.3%;}
.img-absolute1-3-4{bottom:15.4%;right:2%;width:87.3%;}
.img-absolute1-5-1{bottom:24%;right:2%;width:87.3%;}
.item-link{position:absolute;right:9.8%;z-index:1;font-size:.46rem;color:#19cadc;cursor:pointer;}
.item-link .iconfont{font-size:1em}
.img-link2-1-1{top:22%;}
.img-link2-1-2{top:43%;}
.img-link2-1-3{top:67%;}