body{font-size: 16px;} 
.w90{ width:min(90%,1320px);   margin: 0 auto;  }

header{ position: sticky; top: 0; left: 0; width: 100%; z-index: 100; box-shadow: 0 0 10px rgba(0, 0, 0, .15);}
.logoImg{ height: 45px;}
nav li{ margin-left: 2vw;}
.oneNav{ font-size: 18px;  line-height: 70px; display: block; white-space: nowrap;}
nav  li.on .oneNav,nav  li:hover .oneNav{ color: var(--red);}
 
nav  li{ position: relative;}
nav  li dl{position:absolute;text-align: center;min-width:150px; width: auto;top:100%;left: 50%; background:#fff;   -webkit-box-shadow:0 13px 42px 11px rgba(0,0,0,.15);box-shadow:0 13px 42px 11px rgba(0,0,0,.15);
  border-bottom-left-radius:5px;border-bottom-right-radius:5px;
}
nav  li dl dd{white-space: nowrap;height:50px;line-height:50px;border-bottom:1px solid #eee;transition:all .36s ease;-ms-transition:all .36s ease;-o-transition:all .36s ease;-webkit-transition:all .36s ease;-moz-transition:all .36s ease}
nav  li dl dd:last-child{border-bottom:0}
nav  li dl dd a{ padding: 0 20px;  font-size:14px; color:#333!important; font-weight: normal!important; transition:all .36s ease;-ms-transition:all .36s ease;-o-transition:all .36s ease;-webkit-transition:all .36s ease;-moz-transition:all .36s ease;display:block }
nav  li dl dd:hover{background:var(--red)}
nav  li dl dd:hover a{color:#fff!important;}
/* nav  li dl:before{content:"";position:absolute;border-width:0 9px 9px;border-style:solid;border-color:transparent transparent #f6f1e1;top:-9px;left:50%;margin-left:-9px} */
nav  li dl{ pointer-events: none; visibility:hidden; opacity:0; filter:alpha(opacity=0); transform:translateX(-50%) translateY(20px); -ms-transform:translateX(-50%) translateY(20px); -o-transform:translateX(-50%) translateY(20px); -webkit-transform:translateX(-50%) translateY(20px); -moz-transform:translateX(-50%) translateY(20px); transition:all .36s; -ms-transition:all .36s; -o-transition:all .36s; -webkit-transition:all .36s; -moz-transition:all .36s; }
nav  li:hover dl{ pointer-events: auto;visibility:visible; opacity:1; filter:alpha(opacity=100); transform:translateX(-50%); -ms-transform:translateX(-50%); -o-transform:translateX(-50%); -webkit-transform:translateX(-50%); -moz-transform:translateX(-50%); }
nav:hover li:not(:hover) .oneNav{ color: #333;  }
.mobileNav{ display: none ;}


.h_nav{ height: 60px; width: 60px; background-color:var(--red); padding: 18px 8px ;    align-items: flex-end; display: flex;}
.h_nav .burger{ width: 100%;  height: 1px ; background: #fff;  transition: .8s; display:inline-block;       }
.h_nav .burger:first-child{ animation: long 2s linear infinite; -webkit-animation: long 2s linear infinite; }
.h_nav .burger:nth-of-type(2){  width: 50%;}
.h_nav .burger:nth-of-type(3){ animation: long 3s linear infinite; -webkit-animation: long 3s linear infinite; }
.h_nav.close .burger:first-child{ display: none;}
.h_nav.close .burger:nth-of-type(3){ display: none;}
.h_nav.close .burger:nth-of-type(2) {    position: relative;    z-index: 1; width: 80%;}
.h_nav.close .burger:nth-of-type(2):before, .h_nav.close .burger:nth-of-type(2):after {      content: '';   position: absolute;      top: 0;      left: 0;      width: 100%;      height: 100%;      background: #fff;      opacity: 0;      z-index: 1;}
.h_nav.close .burger:nth-of-type(2) {    background: transparent;    transform: rotate(-180deg); }
.h_nav.close .burger:nth-of-type(2):before, .h_nav.close .burger:nth-of-type(2):after {      opacity: 1;      transition: all .3s; }
.h_nav.close .burger:nth-of-type(2):before {     transform: rotate(45deg); }   .h_nav .burger:nth-of-type(2):after {     transform: rotate(-45deg); }

.nav{ padding-bottom: 70px; color: #fff !important; width: 100%; height: calc(100vh - 60px) ; transition:all .6s ; transform: translateX(100%); background-color: #000; position: fixed; top: 60px; right: 0; flex-direction: column; -webkit-transform: translateX(100%); -moz-transform: translateX(100%); -ms-transform: translateX(100%); -o-transform: translateX(100%); -webkit-transition:all .6s ; -moz-transition:all .6s ; -ms-transition:all .6s ; -o-transition:all .6s ; }
.nav.show{ transform:translateX(0) ;  -webkit-transform:translateX(0) ; -moz-transform:translateX(0) ; -ms-transform:translateX(0) ; -o-transform:translateX(0) ; }
.nav li.go-child{ border-top: 1px solid rgba(255, 255, 255, 0.25); position: relative;}
.nav li.go-child>a{ line-height: 60px; padding: 0 20px; font-size: 16px;}
.h_nav.close{align-items: center; justify-content: center;}
.erji{ width: 60px; height: 60px; position: absolute; right: 0 ; top: 0; display: flex; align-items: center; justify-content: center; font-size: 30px; z-index: 10;
 background: url(../images/jia.png) no-repeat center center; background-size: 40% auto;}
 .nav li.go-child.on .erji{ background: url(../images/jian.png) no-repeat center center; background-size: 40% auto;}
.nav-down li a{ line-height: 50px; border-top: 1px solid rgba(255, 255, 255, 0.25); display: block; padding-left: 25px; font-size: 14px; opacity: 0.8; }
.nav{   overflow-y: scroll;   }
.nav::-webkit-scrollbar {/*滚动条整体样式*/    /*高宽分别对应横竖滚动条的尺寸*/  width: 1px;}
.nav::-webkit-scrollbar-thumb {/*滚动条里面小方块*/border-radius: 3px; background: #555; width: 1px; }
.nav::-webkit-scrollbar-track {/*滚动条里面轨道*/border-radius: 3px; background: #000; width: 1px; }

.banImg{ width: 100%; min-height: 300px; object-fit: cover; }

.idxTit .tit{ letter-spacing: 3px;}
.idxTit .tit i{z-index: 3; position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: block; content: ''; background: #38404a; -webkit-clip-path:polygon(100% 0%,90% 100% ,0% 100%,10% 0);} 
.idxTit .tit::after{ width: 260%; position: absolute;  height: 1px; background: #d8d8d8; display: block; content: ''; left: -80%; top: 40%;}
.idxTit .tit::before{ width: 260%; position: absolute;  height: 1px; background: #d8d8d8; display: block; content: ''; left: -80%; bottom: 40%;}

.idxTj .swiper-slide{transform: scale(0.9); opacity: .32;}
.idxTj .swiper-slide.swiper-slide-active{ transform: scale(1); opacity: 1;}
.idxTj .prev,.idxTj .next { width: 70px; height: 70px; position: absolute; top: 50%; transform: translateY(-50%);  z-index: 10;}
.idxTj .prev{ left: 5%;}
.idxTj .next{ right: 5%;}
.idxTj .prev:hover,.idxTj .next:hover{ background: var(--red); color: #fff;}

.idxProLeft{ width: 21.6%;}
.idxProRight{ width: 75.8%;}
.idxProLeftNav .on{ background: var(--red); color: #fff;}
.idxProLeftNav a{display: block;}

.linka a:hover{ color: var(--red);}

.idxProlist li{ width: 32%; margin-right: 2%;}
.idxProlist li:nth-child(3n){ margin-right: 0;}
.idxProlist li .img{ padding-bottom: 100%;}
.idxProlist li:hover .img img{transform: scale(1.1);}
.idxProlist li:hover { box-shadow: 0 0 15px rgba(0, 0, 0, .15); transform: scale(0.95);}

.idxPro .pagination .swiper-pagination-bullet{margin: 0 .25vw; width: 10px; height: 10px;}
.idxNewsLine{ width: 2em; height: 2px;  }

.idxNewsTit a::after{ width: 100%; height: 2px; background: #000; position: absolute; left: 0; bottom: -15px; display: block; content: ''; transform: scale(0,1); transition: all .36s;}
.idxNewsTit a.on::after{ transform: scale(1,1);}
.idxNewsTit a.on{ color: var(--red);}

.idxNewsList li .img{ padding-bottom:50%; width: 100%;}
.idxNewsList li .img img{ width: 100%; height: 100%;object-fit: cover;}
.idxNewsList li:hover .img img{transform: scale(1.1);}

.commonBtn {width: 160px; white-space: nowrap;line-height:40px;text-align: center; display: block;perspective: 500;-webkit-perspective: 500;    }    
.commonBtn .w {position: relative;-webkit-transition: all 0.25s;-o-transition: all 0.25s;transition: all 0.25s;-webkit-transform-style: preserve-3d; transform-style: preserve-3d;pointer-events: none;    }    
.commonBtn .t {position: absolute; width: 100%;height: 100%;left: 0; top: -40px;-webkit-transform-origin: center bottom;	-ms-transform-origin: center bottom;		transform-origin: center bottom;-webkit-transform: rotateX(90deg);		transform: rotateX(90deg);-webkit-backface-visibility: hidden;		backface-visibility: hidden;    }
.commonBtn:hover .w {transform: translateY(20px) translateZ(-20px) rotate3d(1, 0, 0, -90deg);    }
 
footer .top{ background: url(../images/footBg.jpg) no-repeat bottom right; background-size: auto 80%;}
footer a:hover{opacity: .8;}

.ewmImg{ position: absolute ; right: 0; top: 50%; transform: translateY(-50%); width: 120px;}
.footLogo{ height: 43px;}
.ewmImg{ display:none !important; }
.about-sidebar .systitle{ padding:14px 18px; background:var(--red); color:#fff; font-size:18px; text-align:left; }
.about-sidebar .ul-parent{ margin:0; padding:0; border-top:1px solid #eee; list-style:none; }
.about-sidebar .li-parent{ margin:0; padding:0; border-bottom:1px solid #eee; }
.about-sidebar .li-parent a{ display:block; padding:13px 18px; color:#444; }
.about-sidebar .li-parent a:hover{ color:var(--red); }
.product-sidebar .systitle{ padding:14px 18px; background:var(--red); color:#fff; font-size:18px; text-align:left; }
.product-sidebar .ul-parent{ margin:0; padding:0; border-top:1px solid #eee; list-style:none; }
.product-sidebar .li-parent{ margin:0; padding:0; border-bottom:1px solid #eee; }
.product-sidebar .li-parent a{ display:block; padding:13px 18px; color:#444; }
.product-sidebar .li-parent a:hover{ color:var(--red); }