/* 关于我们 */
.about_ban{position: relative;}
.about_ban .ban_img img{width: 100%;}
.about_ban .ban_txt{position: absolute;left: 0;top: 0;width: 100%;height: 100%;display: flex;align-items: center;text-align: center;color: #fff;}


.daohang{height: 60px;box-shadow: 0 2px 1px 1px #f6f7f6;position: relative;}
.daohang a{display: block;line-height: 60px;color: #555555;}
.daohang .dao_con{display: flex;justify-content:space-between;}
.daohang .dao_con .dao_le{display: flex;}
.daohang .dao_con .dao_re{display: flex;align-items: center;}
.daohang .dao_con .dao_le a{margin-right: 50px;position: relative;}
.daohang .dao_con .dao_le a::after{content: "";width: 0;height: 3px;position: absolute;left: auto;right: 0;bottom: 0rem;background: #014099;transition: all 0.6s;}
.daohang a:hover{color: #014099;}
.daohang .dao_con .dao_le a:hover:after{width: 100%;transition: all 0.6s;left: 0;right: auto;}
.daohang .dao_con .dao_le a.act{color: #014099;}
.daohang .dao_con .dao_le a.act::after{width: 100%;}


.n_about{width: 100%;position: relative; padding:90px 0 90px;}
.n_about .n_tit{color: #000000;margin-bottom: 35px;}
.n_about .n_tit::after{content: "";width: 100px;height: 3px;position: absolute;left: 0;right: 0;top: 50px;background: #014099;transition: all 0.6s;}
.n_about .n_con{ margin-top:60px;}
.n_about .n_con .con{width: 100%; padding-bottom:50px; min-height:350px;line-height: 30px;text-align: justify;}
.n_about img{max-width: 100%;}



.about1{width: 100%;position: relative;}

.ab1_top{color: #000000;margin-bottom: 35px;}

.about1 .ab1_con{display: flex;justify-content: space-between;}

.about1 .ab1_con .con_le{width: 45.94%;}

.about1 .ab1_con .con_re{width: 50%;}

.about1 .ab1_con .con_le .le1{line-height: 30px;}

.about1 .ab1_con .con_le .le2{margin: 35px 0 55px;height: 50px;padding-right: 30px;position: relative;}

.about1 .ab1_con .con_le .le2 s{display: block;width: 78%;position: absolute;height: 1px;background: #e5e5e5;left: -23%;top: 50%;}

.about1 .ab1_con .con_le .le2  img{float: right;}

.about1 .ab1_con .con_le .le3{color: #555555;line-height: 30px;max-height: 370px;overflow-y: auto;padding-right: 15px;text-align: justify;}

.about1 .ab1_con .con_le .le3 span{color: #333333;font-weight: 400;}

.about1 .ab1_con .con_le .le3::-webkit-scrollbar{ width:4px;height: 1px;}
.about1 .ab1_con .con_le .le3::-webkit-scrollbar-thumb{ background:#0069d1;}
.about1 .ab1_con .con_le .le3::-webkit-scrollbar-track{ background:#fff;} 

.about1 .ab1_bot {margin-top: 70px;}

.about1 .ab1_bot .ul{display: flex;justify-content: space-between;}

.about1 .ab1_bot .ul .li1{display: flex;align-items: flex-start;}

.about1 .ab1_bot .ul .li1 .sp1{color: #014099;line-height: 50px;margin-right: 3px;}

.about1 .ab1_bot .ul .li2{line-height: 20px;margin-top: 15px;}



/* 气体与服务 */


/* 新闻 */

.new1{padding: 90px 0;}
.new1_top{text-align: center;color: #000;}
.new1 .con {margin-top: 60px;}
.new1 .con .ul{margin-bottom: 35px;}
.new1 .con .ul .li a{display: flex;flex-wrap: wrap;margin-bottom: 45px; background:#f3f3f3;}
.new1 .con .ul .li .a_img{display: block;overflow: hidden;margin-right: 2.125%;width: 22.65625%;}
.new1 .con .ul .li .a_txt{width: 74.65625%;padding-top: 20px;margin-right: 0;}
.new1 .con .ul .li .txt1{line-height: 35px;height: 40px;  display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2; overflow: hidden;margin-bottom: 20px;}
.new1 .con .ul .li .txt2{line-height: 30px;height: 60px;  display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2; overflow: hidden;margin-bottom: 20px;}
.new1 .con .ul .li .txt3{color: #999999;font-family: din;}
.new1 .con .ul .li .a_img img{width: 100%;transition: all 0.6s;}
.new1 .con .ul .li:hover .txt1{color: #014099; }
.new1 .con .ul .li:hover  .a_img img{transform: scale(1.05);transition: all 0.6s;}








@media screen and (max-width:1680px) {
    .about1 .ab1_con .con_le .le3{max-height: 280px;}
    .about1 .ab1_con .con_le .le2{margin: 30px 0;}
    .about1 .ab1_bot{margin-top: 50px;}
    .about1 .ab1_bot .ul .li1 .sp1{line-height: 35px;}
    .about1 .ab1_bot .ul .li{margin-bottom: 25px;width: 40%;}
}

@media screen and (max-width:1025px) {
    .daohang{display: none;}
    .about1 .ab1_con{flex-wrap: wrap;}
    .about1 .ab1_con .con_le{width: 100%;margin-bottom: 30px;}
    .about1 .ab1_con .con_re{width: 100%;}
    .ab1_top{margin-bottom: 25px;}
    .about1 .ab1_con .con_le .le2 img{width: 180px;}
    .about1 .ab1_con .con_le .le2{padding-right: 10px;height: 30px;margin: 25px 0;}
    .about1 .ab1_con .con_le .le2 s{left: auto;right: 200px;}
    .about1 .ab1_bot .ul{flex-wrap: wrap;}
}


@media screen and (max-width:700px) {
  
	/* 第一屏 */
	.in_1{ margin-top:40px;}
	.in_1 .in1_sw .sw_con  .btext {position: absolute;left: 12.5%;right: 12.5%;top: 30%;z-index: 5;line-height:25px;}
	.in_1 .in1_sw .sw_con  .btext p {color: #ffffff;font-size: 16px;letter-spacing: 3px;}
	.in_1 .in1_sw .sw_con  .btext .btitle {display: inline-block;position: relative;padding-bottom: 25px;margin-bottom: 20px;}
	.in_1 .in1_sw .sw_con  .btext .btitle i {display: block;position: absolute;left: 0;right: 16px;bottom: 0;height: 1px;background: rgba(255, 255, 255, 0.3);}
	.in_1 .in1_sw .sw_con  .btext .btitle i:before {position: absolute;left: 0;bottom: 0px;content: "";width: 113px;height: 2px;background: #fff;}
	.in_1 .in1_sw .sw_con  .btext .btitle strong {display: block;line-height: 1.2;color: #fff;font-size: 24px;letter-spacing: 10px;}
	.in_1 .in1_sw .sw_con  .btext .btitle small {display: block;margin-top: 10px;line-height: 1.1;color: #ffffff;font-size: 12px;text-transform: uppercase;}
	.in_1 .in1_sw .swiper-button-next{transform: rotate(180deg);right: 1px;}
	.in_1 .in1_sw .swiper-button-prev{left: 1px;}

	/* 第二屏 */
	.in_2 {background: url(ind2_1.jpg) left no-repeat;background-size: cover; padding:0;}
	.in_2 .in2_txt{position:relative;margin:0 auto; width:100%; max-width:1360px;height: 100%; padding:30px 0 60px;}
	.in_2 .in2_txt .txt .txt_le{width: 100%; text-align:center;color: #fff;}
	.in_2 .in2_txt .txt .txt_le .le1{margin-bottom: 20px;}
	.in_2 .in2_txt .txt .txt_le .le2{margin-bottom: 15px;text-align:center; font-weight:bold; line-height:25px; font-size:16px;}
	.in_2 .in2_txt .txt .txt_le .le3{line-height: 25px;margin-bottom: 5px;text-align:center;}
	.in_2 .in2_txt .txt .txt_re{width: 100%;color: #fff;}
	.in_2 .in2_txt .txt .txt_re ul{display: flex;justify-content: space-between;height: 100%;align-items: center;}
	.in_2 .in2_txt .txt .txt_re .li{ width:25%;padding: 30px 0 30px; text-align:center;}
	.in_2 .in2_txt .txt .txt_re .li .li_re{width: 100%;line-height: 40px;padding-top: 5px; text-align:center;}
	.in_2 .more { width:200px; height:50px; line-height:50px; text-align:center;margin:20px auto 0; }
	.in_2 .more a{ display:block; color:#fff; background:rgba(2,65,144,0.7);}
	.in_2 .more a:hover{ background:rgba(2,65,144,1); color:#fff;}

	/* 第三屏 */
	.in_3 {background:url(ind3.jpg); background-size:cover; padding:60px 0;}
	.in_3 .txt1{margin-bottom: 15px; text-align:center;}
	.in_3 .txt2{line-height: 25px;margin-bottom: 20px; text-align:center;}
	.in_3 .zhuy { position:relative;}
	.in_3 .zy_sp{display:block;}
	.in_3 .zhuy .zy_sp {left: 50%;transform: translateX(-50%);bottom: -30px;display: block; }
	.in_3 .zhuy .zy_sp .swiper-pagination-bullet{margin: 0 5px;}
	
	/* 第四屏 */
	.in_4 {background:url(ind4_b.jpg); background-size:cover; padding-bottom:60px;}
	.in_4 .in4_txt{position:relative;width: 100%;height:auto;color: #fff; padding:0;}
	.in_4 .in4_txt .pc{opacity: 0;}
	.in_4 .in4_txt .txt1{margin-bottom: 15px; text-align:center; color:#333;}
	.in_4 .in4_txt .txt2{line-height: 25px;margin-bottom: 20px; text-align:center; color:#333;}
	.in_4 ul{margin:0; }
	.in_4 ul li{width: 50%;}
	
	/* 第五屏 */
	.in_6 {padding:60px 0;}
	.in_6{}
	.in_6 .pc{opacity: 0; display:none;}
	.in_6 .txt1{margin-bottom: 15px; text-align:center; color:#333; margin-top:0;}
	.in_6 .txt2{line-height: 25px;margin-bottom: 20px; text-align:center; color:#333;}
	.in_6 .xw_sp{display:block;}
	.in_6 .xinwen { margin-top:0;}
	.in_6 .xinwen .xw_sp {left: 50%;transform: translateX(-50%);bottom:-30px;display: block;}


}