/*common start*/
body,div,ul,li,a,img,p,dl,dt,dd,h1,h2,h3,h4,span,strong,input{ margin:0; padding:0;list-style:none;text-decoration:none;border:0; list-style:none;}
body{ font-size:12px;font-family:'Microsoft YaHei'; color:#666;}
body.head_on{overflow:hidden}
a{color:#666;transition: 0.3s;}
a:hover{ color:#f60; text-decoration:none;cursor: pointer;}
p{line-height:1.8em; padding:5px 0;}
.clear{ margin:0; padding:0; font-size:0; clear:both; }
.wapper{ width:1200px; margin:0 auto;}



.header{ position:relative;background: #fff200;box-shadow: 0 2px 3px 0 rgb(0 0 0 / 50%);}
.headList{height: 60px;}
.logo{display: block;}
.logo img{max-height: 45px;width: auto;}
.hTel{font-size: 13px;color: #000;}

/*menu*/
.menu{height:35px;line-height:35px;background:#333;}
.menu ul li{ float:left; position:relative; border-right:#666 solid 1px;}
.menu ul li dl{ background:#fff; width:100%; position:absolute; left:0px; top:35px; box-shadow:2px 2px 5px rgba(0,0,0,0.2);padding:10px 0;display:none;z-index: 9;}
.menu ul li dl dd{ line-height:28px;border-bottom:#ddd dotted 1px; margin:0 10px; }
.menu ul li dl dd a{ font-size:12px; color:#666;display:block; padding:0;text-align:left;}
.menu ul li dl dd a:hover{ color:#f60;}
.menu a{ font-size:14px;color:#fff;display:block;text-align:center;padding: 0 20px;}
.menu a:hover{color:#fff;}
a.menu_hover{ background:#666;color:#fff;}
.menu_down span{ display:block;background:url(../images/menu_down.gif) right 10px center no-repeat;}


/*mMenu*/
.m_header{width: 100%;}
.sp_header{height:70px;overflow:hidden;background:#fff;position:fixed;z-index:999;width:100%;display: none;top: 0;}
.sp_logo{float:left;height:70px;display: flex;justify-content: center;align-items: center;padding-left: 10px;}
.sp_logo img{margin:auto;max-height:50px;}
.sp_nav{width:50px;float:right;position:relative;cursor:pointer;height:30px;margin-top:25px}
.sp_nav span{display:block;background:#0188FB;width:30px;height:2px;position:absolute;left:10px;transition:all ease 0.35s}
.sp_nav span:nth-of-type(1){top:0px}
.sp_nav span:nth-of-type(2){top:10px}
.sp_nav span:nth-of-type(3){top:20px}
.sp_nav_se span:nth-of-type(1){top:10px;transform:rotate(45deg)}
.sp_nav_se span:nth-of-type(2){width:0}
.sp_nav_se span:nth-of-type(3){top:10px;transform:rotate(-45deg)}
.sjj_nav{position:fixed;z-index:9999;background:#fff;width:100%;height:calc(100% - 70px);font-size:14px;line-height:40px;top:-100%;left:0;overflow:auto;overflow-x:hidden;transition:top ease 0.35s;display: none;}
.nav_show{top:70px}
.sjj_nav ul li i{position:absolute;top:5px;right:0px;height:30px;padding:0px 7px 0 7px;}
.sjj_nav ul li i svg{transform:rotate(-90deg);transition:all ease 0.35s}
.sjj_nav ul li .sjj_nav_i_se svg{transform:rotate(0deg)}
.sjj_nav ul li{border-top:1px #e4e8eb solid;position:relative;line-height:45px;font-size:16px}
.sjj_nav>ul >li:last-child{border-bottom:1px #ddd solid;}
.sjj_nav ul li ul{display:none}
.sjj_nav ul li a{color:#333;width:100%;padding: 0 20px;display: block;box-sizing: border-box;}
.sjj_nav ul li a:hover{color: #0188FB;}
.sjj_nav ul li ul li a{color:#333;display:block;text-align:left;}
.sjj_nav ul li i svg{width:25px;height:25px;fill:#333;}
.sjj_nav ul li .sjj_nav_i_se svg{fill:#333}
.sjj_nav ul li ul li>ul{margin-left:10px}
.sjj_nav ul li ul li{border-top: none;}
.sjj_nav ul li ul li a{padding: 0 30px;}


/*swiper*/
.swiper {width: 100%;height: 100%;}
.swiper-slide {background: #fff;display: -webkit-box;display: -ms-flexbox;display: -webkit-flex;display: flex;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-justify-content: center;justify-content: center;-webkit-box-align: center; -ms-flex-align: center;-webkit-align-items: center;align-items: center;}
.swiper-slide img { display: block;width: 100%;height: 100%;object-fit: cover;}
.swiper .swiper-button-next:after,.swiper .swiper-button-prev:after{font-size: 30px;}
/*common*/
.disFlex {
	flex-wrap: wrap;
	display: -webkit-box;/* Chrome 4+, Safari 3.1, iOS Safari 3.2+ */
	display: -moz-box;/* Firefox 17- */
	display: -webkit-flex;/* Chrome 21+, Safari 6.1+, iOS Safari 7+, Opera 15/16 */
	display: -moz-flex;/* Firefox 18+ */
	display: -ms-flexbox;/* IE 10 */
	display: flex;
}
.jusBet{justify-content: space-between;}
.jusCet{justify-content: center;}
.jusEnd{justify-content: flex-end;}
.aliTop{align-items: flex-start;}
.aliCet{align-items: center;}
.alibtm{align-items: flex-end;}

.img{font-size: 0px;overflow: hidden;}
img{transition: 0.5s;}

.f_left{float: left;}
.f_right{float: right;}
.clearfix:before,
.clearfix:after {content: "";display: table;}
.clearfix:after {clear: both;overflow: hidden;}
.clearfix {*zoom: 1;}

.bgfff{background: #fff !important;}
.fff{color: #fff !important;}
em{font-style: normal;}
.overflow1{white-space: nowrap;text-overflow: ellipsis;overflow: hidden;width: 100%;display: block;}
.overflow2{display: -webkit-box;-webkit-line-clamp: 2;-webkit-box-orient: vertical;overflow: hidden;text-overflow: ellipsis;}
.overflow3{display: -webkit-box;-webkit-line-clamp: 3;-webkit-box-orient: vertical;overflow: hidden;text-overflow: ellipsis;}

.pt140{padding-top: 140px;}
.pb140{padding-bottom: 140px;}
.pt120{padding-top: 120px;}
.pb120{padding-bottom: 120px;}
.pt100{padding-top: 100px;}
.pb100{padding-bottom: 100px;}
.pt80{padding-top: 80px;}
.pb80{padding-bottom: 80px;}
.pt60{padding-top: 60px;}
.pb60{padding-bottom: 60px;}
.pt50{padding-top: 50px;}
.pb50{padding-bottom: 50px;}

.mt10{margin-top: 10px;}
.mt20{margin-top: 20px;}
.mt35{margin-top: 35px;}
.mt50{margin-top: 50px;}
.mt60{margin-top: 60px;}
.mt70{margin-top: 70px;}
.mt80{margin-top: 80px;}

.textCet{text-align: center;}
.iTit{font-size: 48px;color: #000;}
.iTxt{font-size: 21px;color: #000;font-weight: 300;}

/*-------------------------------------------*/

/*banner*/
.banner{width: 100%;}
.bannerSwiper .swiper-pagination-bullet{opacity: 1;background: #fff;transition:width ease 0.35s;border-radius: 20px;}
.bannerSwiper .swiper-pagination-bullet-active{background: #fff200;width:20px;}

.index1{width: 100%;padding: 70px 0;}
.i1List{width: 100%;}
.i1List img{width: 100%;}

.index2{width: 100%;padding: 70px 0;background: #f3f3f3;}
.index2 .iTit{font-size: 16px;color: #333;font-weight: bold;}
.index2 .iTxt{font-size: 40px;}
.i2Warp{width: 100%;}
.i2Warp .item1{width: 40%;}
.i2Warp .item2{width: 58%;}
.i2Video{width: 100%;height: 480px;}
.i2Video video{width: 100%;height: 100%;background: #000;}

.index3{width: 100%;padding: 70px 0;}
.i3Top{width: 100%;}
.i3Top .line img{height: 15px;width: auto;}
.index3 .iTit{font-size: 32px;}
.i3Warp{width: 100%;}
.i3Warp .left{width: 58%;position: relative;padding-right: 5%;box-sizing: border-box;}
.i3Warp .left .line{position: absolute;top: 50%;transform: translateY(-50%);right: 0;}
.i3Warp .left .line img{width: 18px;}
.i3Warp .right{width: 42%;padding-left: 5%;box-sizing: border-box;}
.i3Desc{font-size: 16px;color: #333;}
.i3Desc i{font-style: normal;}

.i3Info{font-size: 16px;color: #333;}
.i3Info h3{margin: 10px 0;}
.i3Info p{padding: 3px 0;}

.footer{width: 100%;background: #333;text-align: center;color: #fff;font-size: 16px;padding-top: 25px;}
.fLogo img{width: auto;max-height: 80px;}
.copyright{width: 100%;padding: 20px 0;margin-top: 25px;position: relative;}
.copyright:before,
.copyright:after {content: '';left: 0;right: 0;height: 1px;position: absolute;}
.copyright:before {background-color: #4f4f4f;top: 0;}
.copyright:after {background-color: #000;top: 1px;}

.tongtu{width: 100%;}
.tongtu img{width: 100%;}

.inside{width: 100%;padding: 70px 0;overflow: hidden;}
.inside img{max-width: 100%;width: auto;}






@media only screen and (max-width: 1200px) {
.wapper{ width:100%;padding: 0 5%;box-sizing: border-box;}
.iTit{font-size: 42px;}
.iTxt{font-size: 18px;}
.index2 .iTxt{font-size: 38px;}
.index3 .iTit{font-size: 28px;}

}


@media only screen and (max-width: 980px) {
.iTit{font-size: 36px;}
.iTxt{font-size: 16px;}
.index2 .iTxt{font-size: 32px;}
.i3Desc{font-size: 15px;}
.i3Info{font-size: 15px;}
.i2Video{height: 380px;}
}

@media only screen and (max-width: 780px) {
.wapper{padding: 0 10px;box-sizing: border-box;}
.headList{height: 50px;}
.logo img{max-height: 35px;}
.hTel{font-size: 12px;}
.banner{height: 220px;}
.iTit{font-size: 26px;}
.iTxt{font-size: 14px;}
.index2 .iTxt{font-size: 18px;}
.index3 .iTit{font-size: 24px;}
.i3Desc{font-size: 14px;}
.i3Info{font-size: 14px;}
.i2Warp .item1{width: 100%;margin-bottom: 20px;}
.i2Warp .item2{width: 100%;}
.i2Video{height: auto;}
.i3Top .line img{height: auto;width: 100%;}
.i3Top .logo{display: none;}
.i3Warp{margin-top: 20px;}
.i3Warp .left{width: 100%;padding: 0;margin-bottom: 20px;}
.i3Warp .left .line{display: none;}
.i3Warp .right{width: 100%;padding: 0;}
.i3Info{margin-top: 20px;}
.fLogo img{max-height: 40px;}
.footer{font-size: 14px;padding-top: 20px;}
.copyright{padding: 15px 0;margin-top: 20px;}

}

/* 手机端补丁 · 智构轨迹 2026-08-28
   电话和邮箱改成可点（tel:/mailto:）后，浏览器会给默认的蓝色下划线，
   会把原来的黄底页头和联系区弄花。这里让它们继续长得像正文。 */
.hTel a,
.i3Info a{color:inherit;text-decoration:none}
.hTel a:active,
.i3Info a:active{opacity:.6}
/* 产品图是一整张宽图，手机上得能点开凑近看 —— 顺手把点击区域做大一点 */
/* iOS 建议可点区域至少 44pt。直接加 padding 会把黄色页头撑高，
   所以用一层透明的伪元素把热区撑到 44px，视觉上一点不变。 */
@media only screen and (max-width: 780px){
  .hTel a,
  .i3Info a{position:relative;display:inline-block}
  .hTel a::after,
  .i3Info a::after{content:"";position:absolute;left:0;right:0;top:50%;
    transform:translateY(-50%);height:44px}
}