@charset "utf-8";
@import url('https://fonts.googleapis.com/css?family=Montserrat:100,400,700,800&display=swap');

.lt_bn {position:relative;overflow:hidden}
.lt_bn .bx-wrapper{height:850px}
.lt_bn li{background-position:center center;background-size:cover;background-repeat:no-repeat;height:850px;}
.lt_bn .bg{;position:absolute;top:0;left:0;width:100%;height:100%;/*background:rgba(0,0,0,0.3);*/content:'';z-index:1;overflow:hidden}

.lt_bn .bn_txt{display:table;height:100%;width:1180px !important; margin:0 auto; position:relative;z-index:2;}

.lt_bn .txt_wr{display:table-cell;vertical-align:middle; text-align:center}
.lt_bn li .bn_tit_eng{font-size:60px; font-family: 'Montserrat', sans-serif; font-weight:700; color:#fff; margin-bottom:7px;}
.lt_bn li .bn_tit{font-size:50px; font-weight:100; line-height:120%;color:#fff; letter-spacing:-1pt;}
.lt_bn li .bn_detail{font-size:20px; margin:20px 0 20px; line-height:130%;color:rgba(255,255,255,0.6)}
.lt_bn li .bn_view {display:inline-block; border:1px solid #fff; color:#fff;padding:7px 25px;line-height:45px;margin-top:20px}
.lt_bn li .bn_view span{display:inline-block; background:url('/img/btn_arrow_wh.png') no-repeat right 20px; color:#fff; padding-right:50px;}
.lt_bn .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:18px}
.lt_bn:hover .bn_link{display:block}
.lt_bn .bn_link:hover {transform: rotate( -45deg );color:#fff;}



.lt_bn .bx-pager{position:absolute;bottom:0;right:0}

.lt_bn li .bn_tit_eng{opacity:0; transform:translateY(30px);
-webkit-transition: all 0.3s ease-in .2s;
-moz-transition:  all 0.3s ease-in .2s;
-ms-transition: all 0.3s ease-in .2s;
-o-transition: all 0.3s ease-in .2s;
transition: all 0.3s ease-in .2s}
.lt_bn li .active-slide .bn_tit_eng{opacity:1;
transform:translateY(0)}

.lt_bn li .bn_tit{opacity:0; transform:translateY(30px);
-webkit-transition: all 0.3s ease-in .5s;
-moz-transition:  all 0.3s ease-in .5s;
-ms-transition: all 0.3s ease-in .5s;
-o-transition: all 0.3s ease-in .5s;
transition: all 0.3s ease-in .5s}
.lt_bn li .active-slide .bn_tit{opacity:1;
transform:translateY(0)}

.lt_bn li .bn_detail{opacity:0;
-webkit-transition: all 1s ease-in .8s;
-moz-transition:  all 1s ease-in .8s ;
-ms-transition:  all 1s ease-in .8s;
-o-transition: all 1s ease-in .8s;
transition: all 1s ease-in .8s}
.lt_bn li .active-slide .bn_detail{opacity:1}

.lt_bn li .bn_view{opacity:0;
-webkit-transition: all 1.3s ease-in 1s;
-moz-transition: all 1.3s ease-in 1s;
-ms-transition: all 1.3s ease-in 1s;
-o-transition: all 1.3s ease-in 1s;
transition: all 1.3s ease-in 1s}
.lt_bn li .active-slide .bn_view{opacity:1}

.lt_bn #bx_pager{position:absolute; bottom:20px;left:50%; margin-left:-62px; z-index:99; background:rgba(0,0,0,0.4); padding:7px 20px;}
.lt_bn #bx_pager a{color:#fff;display:inline-block;padding:5px;line-height:20px;opacity:0.5}
.lt_bn #bx_pager span{display:inline-block;width:0;height:1px;background:#fff;vertical-align:top;margin-top:10px;margin-left:8px;
-webkit-transition: all 0.3s ease-in;
-moz-transition:  all 0.3s ease-in ;
-ms-transition: all 0.3s ease-in ;
-o-transition: all 0.3s ease-in ;
transition: all 0.3s ease-in }
.lt_bn #bx_pager .active{opacity:1}
.lt_bn #bx_pager .active span{width:20px}      
.lt_bn .btn_bottom{position:absolute;bottom:0;left:50%;width:81px;height:37px;background:url('./btn_bottom.png');border:0;margin-left:-40px;text-indent:-999px;overflow:hidden}

/* @media (max-width: 969px){
    .lt_bn .bx-wrapper ,.lt_bn li{height:500px}
    .lt_bn .bx-controls-direction a{width:30px;height:30px }
    .lt_bn .txt_wr{padding:0 40px}
    .lt_bn li .bn_tit{font-size:2em;}
    .lt_bn .btn_bottom{display:none}
    .lt_bn #bx_pager{width:100%;text-align:center;right:0}
*/
 }