.ya-imgbox{width: 49%;margin-top: 30px;}
.ya-imgbox img,.ya-hf img{width: 100%}
.ya-hf{margin-top: 25px;}

.ya-lbt{padding: 15px;margin-top: 25px;background: #fff;}
.ya-lbt ul{margin-left: -2%;}
.ya-lbt ul li{width: 31.33%;float: left;margin-left: 2%;}
.ya-lbt ul li img{width: 100%}

@media screen and (max-width:1000px){
    .ya-imgbox,.ya-hf,.ya-lbt{margin-top: 20px;}
}

@media screen and (max-width: 750px){
    .ya-lbt ul{display: -webkit-box;display: -webkit-flex;display: -ms-flexbox;display: flex;overflow-x: auto;-webkit-overflow-scrolling: touch;}
    .ya-lbt ul li{-webkit-box-flex: 0;-webkit-flex: none;-ms-flex: none;flex: none;width: 48%}
    .ya-lbt ul::-webkit-scrollbar{ display: none;}
}

@media screen and (max-width:500px){
    .ya-imgbox{width: auto;float: none}
    .ya-lbt ul li{width: 98%}
    .ya-lbt ul li img{height: 60px;}
}