@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:auto;background-repeat:no-repeat; height:750px;/*height:100vh;text-align:center;*/color:#fff}
.lt_bn li:nth-child(3) .txt_wr .bn_subtit{display: none}
.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:table;height:100%;width:100%;max-width:1400px;  margin: 0 auto; text-align:center; position:relative;z-index:2;}
.lt_bn .txt_wr {padding-top:200px;text-align: left; }

.lt_bn li .bn_tit img{width: 100px}
.lt_bn li .bn_tit {font-size:22px; font-weight:300; word-break:keep-all; opacity:0;
-webkit-transition: all 1s ease-in .3s;
-moz-transition:  all 1s ease-in .3s ;
-ms-transition:  all 1s ease-in .3s;
-o-transition: all 1s ease-in .3s;
transition: all 1s ease-in .3s}

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

.lt_bn li .bn_detail{font-size:60px; line-height:85px; word-break:keep-all; font-weight:300; margin:20px 0 00px; opacity:0;color: #222;text-shadow: 1px 1px 8px #fff;
-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 .active-slide .bn_detail {opacity:1}

.lt_bn li .bn_de_txt {font-size:70px; font-weight:700; word-break:keep-all; opacity:0;color: #053491;text-shadow: 1px 1px 8px #fff;
-webkit-transition: all 1s ease-in .3s;
-moz-transition:  all 1s ease-in .3s ;
-ms-transition:  all 1s ease-in .3s;
-o-transition: all 1s ease-in .3s;
transition: all 1s ease-in .3s}
.lt_bn li .bn_de_txt span{color: #e5b339}

.lt_bn li .active-slide .bn_de_txt {opacity:1}

.lt_bn #bx_pager {position:absolute; bottom:80px;z-index:99; width:100%;  text-align:center;}
.lt_bn #bx_pager .pager_wrap {width:100%; max-width:1400px; margin:0 auto;}
.lt_bn #bx_pager .pager_wrap a {color:#222;display:inline-block;padding:5px;line-height:20px;opacity:0.5; font-size:16px;}
.lt_bn #bx_pager .pager_wrap  span{display:inline-block;width:0;height:1px;background:#222;vertical-align:top;margin-top:10px;margin-left:8px;
-webkit-transition: all 0.5s ease-in;
-moz-transition:  all 0.5s ease-in ;
-ms-transition: all 0.5s ease-in ;
-o-transition: all 0.5s ease-in ;
transition: all 0.5s ease-in }
.lt_bn #bx_pager .pager_wrap .active{opacity:1}
.lt_bn #bx_pager .pager_wrap .active span{width:20px}

@media (max-width: 1199px){
	.lt_bn .bn_txt  {padding:0 20px}
    .lt_bn #bx_pager  {padding:0 20px}
    
 }

 @media (max-width: 969px){
     .lt_bn .bx-wrapper, .lt_bn li{background-size:400%}
	.lt_bn .bx-wrapper, .lt_bn li {height:560px;    display: flex;  flex-direction: column;  align-items: center;  justify-content: center;}
	
     .lt_bn .bg_red{width: 80%; height: 60%; margin: 0 auto; opacity: 0.9}
	.lt_bn .txt_wr {padding-top:180px;}
	.lt_bn li .bn_tit img {width: 80px}
    .lt_bn li .bn_detail {font-size:45px; line-height:60px; margin:20px 0 00px;text-align: left}
	.lt_bn li .bn_de_txt {font-size:45px; margin: auto;text-align: left}
    .lt_bn #bx_pager {bottom:60px;text-align: left;}
	.lt_bn #bx_pager .pager_wrap a {font-size:14px;}
 }

  @media (max-width: 639px){
	.lt_bn .bx-wrapper, .lt_bn li{height:380px;background-position: 60%!important}
	.lt_bn .bx-wrapper, .lt_bn li{background-size:350%}
	.lt_bn .txt_wr {padding-top:120px;}
	.lt_bn li .bn_tit img {width: 50px}
    .lt_bn li .bn_detail {font-size:28px; line-height:38px; margin:10px auto 00px; }
	.lt_bn li .bn_detail br {display:none;}
	.lt_bn li .bn_de_txt {font-size:28px; }
    .lt_bn #bx_pager {bottom:30px; left:0;}
	.lt_bn #bx_pager .pager_wrap {padding:0 20px;}
	.lt_bn #bx_pager .pager_wrap a {font-size:12px;}
 }

 @media (max-width: 439px){
	.lt_bn .bx-wrapper, .lt_bn li{height:260px;}
     .lt_bn .txt_wr {padding-top:60px;}
	.lt_bn li .bn_tit img {width: 40px}
    .lt_bn li .bn_detail {font-size:18px; }
     .lt_bn li .bn_de_txt {font-size:24px; }
     .lt_bn #bx_pager {bottom:15px; left:0;}
	.lt_bn #bx_pager .pager_wrap {padding:0 20px;}
	.lt_bn #bx_pager .pager_wrap a {font-size:8px;}
}