@charset "utf-8";

.lt_bn {position:relative;overflow:hidden}
.lt_bn .bx-wrapper{height:auto;}
.lt_bn li {background-position:center center !important;background-size:cover;background-repeat:no-repeat; height:720px; color:#fff}
.lt_bn .bg{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0);content:'';z-index:1;overflow:hidden}

.lt_bn .bn_txt {display:flex; align-items:center; height:100%; width:100%; max-width:1200px; margin:0 auto; position:relative;z-index:2;}
.lt_bn .txt_wr {width:100%;}

.lt_bn li .bn_tit {font-size:75px; line-height:1em; font-weight:700; word-break:keep-all; opacity:0; 
-webkit-transition:all 0.5s ease-in .3s;
-moz-transition:all 0.5s ease-in .3s ;
-ms-transition:all 0.5s ease-in .3s;
-o-transition:all 0.5s ease-in .3s;
transition:all 0.5s ease-in .3s}

.lt_bn li .active-slide .bn_tit {opacity:1;}

.lt_bn li .bn_bsn {font-size:25px; font-weight:500; margin:45px 0 55px; word-break:keep-all; opacity:0; 
-webkit-transition:all 0.5s ease-in .5s;
-moz-transition:all 0.5s ease-in .5s ;
-ms-transition:all 0.5s ease-in .5s;
-o-transition:all 0.5s ease-in .5s;
transition:all 0.5s ease-in .5s}

.lt_bn li .bn_bsn p {position:relative; padding-left:20px; margin:5px 0;}
.lt_bn li .bn_bsn p:before {position:absolute; left:0; content:'-';}

.lt_bn li .active-slide .bn_bsn {opacity:1;}

.lt_bn li .bn_detail {font-size:20px; line-height:32px; word-break:keep-all; opacity:0;
-webkit-transition: all 0.5s ease-in .7s;
-moz-transition:  all 0.5s ease-in .7s;
-ms-transition: all 0.5s ease-in .7s;
-o-transition: all 0.5s ease-in .7s;
transition: all 0.5s ease-in .7s}

.lt_bn li .active-slide .bn_detail {opacity:0.8;}

.lt_bn #bx_pager {position:absolute; bottom:40px;z-index:99; width:100%;}
.lt_bn #bx_pager .pager_wrap {width:100%; max-width:1200px; margin:0 auto; text-align:center;}
.lt_bn #bx_pager .pager_wrap a {color:#fff;display:inline-block; margin:0 2px; font-size:0; width:12px; height:12px; border-radius:30px; opacity:0.4; background:#fff;}
.lt_bn #bx_pager .pager_wrap .active{opacity:1;}


 @media (max-width: 1199px){
	.lt_bn li {padding:0 30px;}	
 }
 @media (max-width: 969px){
	.lt_bn li {height:500px; padding:0 20px;}	
	.lt_bn li .bn_tit {font-size:64px;}
	.lt_bn li .bn_bsn {font-size:22px; margin:30px 0 35px;}
	.lt_bn li .bn_detail {font-size:18px; line-height:30px;}
	.lt_bn #bx_pager {bottom:35px;}
 }

  @media (max-width: 639px){
	.lt_bn li {height:360px;}	
	.lt_bn li .bn_tit {font-size:40px;}
	.lt_bn li .bn_bsn {font-size:16px; margin:22px 0 25px;}
	.lt_bn li .bn_bsn p {padding-left:18px; margin:3px 0;}
	.lt_bn li .bn_detail {font-size:15px; line-height:22px; max-width:430px;}
	.lt_bn li .bn_detail br {display:none;}
	.lt_bn #bx_pager {bottom:20px;}
	.lt_bn #bx_pager .pager_wrap a {width:10px; height:10px; margin:0 1px;}
 }

  @media (max-width: 399px){
	.lt_bn li {height:350px;}	
	.lt_bn li {padding:0 15px;}	
	.lt_bn li .bn_tit {font-size:36px;}
	.lt_bn li .bn_bsn p {margin:2px 0;}
	.lt_bn li .bn_detail {font-size:14px; line-height:20px;}
	.lt_bn #bx_pager {bottom:20px;}
	.lt_bn #bx_pager {bottom:18px;}
 }