.home-contact{margin-bottom:4.5%}
@media (max-width:768px){.home-contact {margin-top:40px}}
.home-hotpro{padding-bottom:0}
.home-hotpro .homehotpro-list .homehotpro-item{height:auto}
.home-contact::before{content: "";position: absolute;top: 0;left: 0;width: 100%;height: 100%;background: rgba(0,0,0,.5);}