@charset "utf-8";
.lt_about {position:relative;overflow:hidden}
.lt_about li{padding:200px 0;text-align:center;background-position:center center;background-size:cover;background-repeat:no-repeat;color:#fff;background-attachment:fixed;}
.lt_about .bg{;position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.3);content:'';overflow:hidden;z-index:2;}
.lt_about .extend-title {
    font-size:2.6rem!important;text-align:center;z-index:5;position:relative;margin-top:-2.8rem;margin-bottom:2rem;
}
.lt_about .bn_txt{display:table;height:100%;width:100%;position:relative;z-index:5;}
.lt_about .txt_wr{display:table-cell;vertical-align:middle;padding:0 10%}
.lt_about .bn_tit {
    font-size:3.8em;font-weight:bold; line-height:1.53em;
    -webkit-text-shadow:2px 2px 5px rgba(55,55,55,0.4);
    -moz-text-shadow:2px 2px 5px rgba(55,55,55,0.4);
    text-shadow: 2px 2px 5px rgba(55,55,55,0.4);
}
.lt_about li .bn_detail {
    font-size:1.8rem;margin:20px 0 20px; line-height:1.7em;
    -webkit-text-shadow:2px 2px 5px rgba(55,55,55,0.4);
    -moz-text-shadow:2px 2px 5px rgba(55,55,55,0.4);
    text-shadow: 2px 2px 5px rgba(55,55,55,0.4);
}
.lt_about li .bn_view {display:inline-block;background:#fff;color:#333;padding:0 35px;line-height:45px;margin-top:20px}
.lt_about .bn_link{display:none;position:absolute;bottom:10px;right:10px;z-index:99;background:#ff0000;color:#fff;width:40px;line-height:40px;border-radius:30px;text-align:center;font-size:16px}
.lt_about:hover .bn_link{display:block}
.lt_about .bn_link:hover {transform: rotate( -45deg );color:#fff;}
.lt_about .bx-pager{position:absolute;bottom:0;right:0}
 
@media (max-width: 969px){
    .lt_about .extend-title {font-size:1.4rem!important;}
    .lt_about .txt_wr {padding:0}
    .lt_about li {padding:100px 0;}
    .lt_about li .bn_tit{font-size:2em;}
    .lt_about li .bn_detail{font-size:1.2rem;}
}