body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,form,input,button,textarea,p,th,td,span,a,b,i,strong{margin:0; padding:0; box-sizing: border-box;}
::before,::after{box-sizing: border-box;}
body {font-size:62.5%; line-height: 1.5; color: #333; background: #fff; font-family: "Microsoft YaHei","PingHei","PingFang SC","STHeitiSC-Light","Helvetica Neue","Helvetica","Arial",sans-serif;} 
html,body{width: 100%;overflow-x: hidden;}
h1,h2,h3,h4,h5,h6{font-weight: normal;}
img{border:0;display: block;max-width: 100%;transition: all .3s ease-out;}
table {border-collapse: collapse;} 
input{border: none;}
textarea{font-family: inherit;}
button{outline: none;border: none;}
a{text-decoration: none;background: none ;color: inherit;font-size: inherit;}
a:hover{color: var(--primary-color);}
ul, li, ol{ list-style: none; }
:focus{ outline:none;}
.clearfloat:after{display:block;clear:both;content:"";visibility:hidden;height:0}
.clearfix{ clear: both; content: ""; display: block; overflow: hidden }
.clear{clear: both;}
.fl{ float: left; }
.fr{float: right;}
:root {--primary-color: #004098;--vice-color: #30aee5;}
.wrapper{width: 84%;max-width: 1600px;min-width: 1200px;margin: 0 auto;}
.bgCover{background-repeat: no-repeat;background-position: center;background-size: cover;}
.pic img{width: 100%;}
.pic_constant{position: relative;}
.pic_constant .inner{width: 100%;}
.pic_constant .inner::after{content: '';width: 100%;display: block;}
.pic_constant .inner img{position: absolute;top: 0;left: 0;width: 100%;height: 100%;object-fit: cover;transition: all .3s ease-out;}
.txtEllipsis{overflow: hidden;text-overflow: ellipsis;white-space: nowrap;}
.txtEllipsisTwo{overflow: hidden;text-overflow: ellipsis;display: -webkit-box; -webkit-box-orient: vertical;-webkit-line-clamp: 2;}
.txtEllipsisThree{overflow: hidden;text-overflow: ellipsis;display: -webkit-box; -webkit-box-orient: vertical;-webkit-line-clamp: 3;}
.txtEllipsisFour{overflow: hidden;text-overflow: ellipsis;display: -webkit-box; -webkit-box-orient: vertical;-webkit-line-clamp: 4;}
.swiper-pagination-bullet-active{background-color: var(--primary-color);}
.color_primary{color: var(--primary-color);}
.color_white{color: #fff;}
.flex_center{display: flex;justify-content: center;align-items: center;}
.flex_between{display: flex;flex-wrap: wrap;justify-content: space-between;}
.flex_align_center{display: flex;align-items: center;}
.flex{display: flex;}
.relative{position: relative;}
.space{padding-top: 80px !important;padding-bottom: 80px !important;}
.mg_t_80{margin-top: 80px;}
.mg_t_60{margin-top: 60px;}
.mg_t_40{margin-top: 40px;}
.mg_t_30{margin-top: 30px;}
.mg_t_20{margin-top: 20px;}
.mg_t_15{margin-top: 15px;}
.mg_t_10{margin-top: 10px;}
.mg_t_5{margin-top: 5px;}
.mg_l_5{margin-left: 5px;}
.mg_l_20{margin-left: 20px;}
.mg_r_5{margin-right: 5px;}
.mg_r_20{margin-right: 20px;}
.indent{text-indent: 2em;}
.text_center{text-align: center;}
.text_right{text-align: right;}
.font_bold{font-weight: bold;}
h2{font-size: 2.6em;}
h3{font-size: 2.2em;}
h4{font-size: 2em;}
.fs50{font-size: 5em;}
.fs40{font-size: 4em;}
.fs24{font-size: 2.4em;}
.fs22{font-size: 2.2em;}
.fs20{font-size: 2em;}
.fs18{font-size: 1.8em;}
.fs16{font-size: 1.6em;}
.fs14{font-size: 1.4em;}

.swiper-free-mode>.swiper-wrapper {-webkit-transition-timing-function: linear !important;-moz-transition-timing-function: linear !important;-ms-transition-timing-function: linear !important;-o-transition-timing-function: linear !important;transition-timing-function: linear !important;}

.header{width: 100%;height: 130px;background-color: #fff;}
.header .wrapper{height: 100%;display: flex;justify-content: space-between;align-items: center;}
.header .logo img{height: 70px;}

.header .nav{width: 60%;height: 100%;display: flex;justify-content: space-between;}
.header .nav> li{line-height: 130px;position: relative;transition: all .3s ease-out;}
.header .nav> li> a{display: block;}
.header .nav .arrow{display: none;}
.header .nav a{font-size: 1.8em;transition: inherit;}
.header .nav .children{min-width: 100%;padding: 10px 20px 10px;position: absolute;top: 100%;left: 50%;z-index: 9;background-color: rgba(255, 255, 255, .8);transform: translateX(-50%) scaleY(0);transform-origin: top;opacity: 0;transition: all .3s ease-out;}
.header .nav .children li a{font-size: 1.8em;line-height:44px;white-space: nowrap;display: block;text-align: center;}

.header .nav> li.on> a{color: var(--primary-color);font-weight: bold;}
.header a:hover{color: var(--primary-color);}

.header .menu_btn{width: 26px;height: 22px;cursor: pointer;display: none;position: relative;}
.header .menu_btn span {display: inline-block;width: 100%;height: 3px;background-color: var(--primary-color);;position: absolute;transition: all .3s linear;}
.header .menu_btn span:first-child {top: 0;}
.header .menu_btn span:nth-child(2) {top: 10px;}
.header .menu_btn span:last-child {top: 20px;width: 70%;}
.header.toggle .menu_btn span:first-child {top: 11px;transform: rotate(45deg);}
.header.toggle .menu_btn span:nth-child(2) {opacity: 0;}
.header.toggle .menu_btn span:last-child {top: 11px;width: 100%;transform: rotate(-45deg);}

.footer{background-color: #fafafa;color: #646464;padding: 30px 0;}
.footer .logo{position: relative;z-index: 1;}
.footer .logo::before{content: '';position: absolute;top: 50%;left: 0;z-index: -1;width: 100%;height: 1px;background-color: #cacaca;}
.footer .logo a{padding: 0 10px;background-color: #fafafa;}
.footer .main{display: flex;flex-wrap: wrap;justify-content: space-between;align-items: flex-end;font-size: 1.4em;}
.footer .contact .title{font-size: 1.2em;color: #333;}
.footer .contact .item{display: flex;align-items: flex-start;padding: 5px 0;}
.footer .nav ul li a{padding: 0 20px;border-right: 1px solid #cacaca;display: block;line-height: 1;}
.footer .nav ul li:first-child a{padding-left: 0;}
.footer .nav ul li:last-child a{padding-right: 0;border-right: 0;}
.footer .btm{font-size: 1.4em;padding-top: 20px;border-top: 1px solid #cacaca;display: flex;justify-content: space-between;align-items: center;}
.footer .btm a:hover{text-decoration: underline;}
.footer .wechat i{font-size: 30px;cursor: pointer;}
.footer .wechat .ewm{position: absolute;bottom: 100%;right: 0;height: 0;width: 140px;background-color: #fff;box-shadow: 0 0 4px #eee;overflow: hidden;transition: all .3s ease-out;}
.footer .wechat .ewm img{height: 130px;}
.footer .wechat i:hover{color: var(--primary-color);}
.footer .wechat.open .ewm{height: 140px;padding: 5px;}

@media screen and (min-width: 1270px){
	.header .nav> li:hover .children{transform: translateX(-50%) scaleY(100%);opacity: 1;}
}

@media screen and (max-width: 1920px){
	
}

@media screen and (max-width: 1440px){
	.header .nav a{font-size: 1.8em;}
	.header .nav .children li a{font-size: 1.6em;}
	
}

@media screen and (max-width: 1270px){
	.wrapper{width: 92%;max-width: 92%;min-width: 92%;}
	.space{padding-top: 50px !important;padding-bottom: 50px !important;}
	.mg_t_80{margin-top: 50px;}
	.mg_t_60{margin-top: 40px;}
	.mg_t_40{margin-top: 30px;}
	.mg_t_30{margin-top: 20px;}
	.mg_t_20{margin-top: 15px;}
	.mg_t_15{margin-top: 10px;}
	.mg_l_20{margin-left: 15px;}
	.mg_r_20{margin-right: 15px;}
	h2{font-size: 2.6em;}
	h3{font-size: 2.4em;}
	h4{font-size: 2em;}
	.fs50{font-size: 3em;}
	.fs40{font-size: 2.8em;}
	.fs24{font-size: 2em;}
	.fs22{font-size: 1.9em;}
	.fs20{font-size: 1.8em;}
	.fs18{font-size: 1.6em;}
	.fs16{font-size: 1.5em;}
	
	.header{height: 60px;position: fixed;z-index: 999;top: 0;left: 0;}
	.header .logo img{height: 35px;}
    .header .menu_btn {display: block;}

	.header .nav{bottom: -100%;left: 0;position: fixed;z-index: 998;width: 100%;height: calc(100vh - 60px);padding: 20px 4%;display: block;overflow-y: auto;background-color: #fff;transition: all .3s ease-out;}
	.header.toggle .nav{bottom: 0;opacity: 1;}
	.header .nav> li{line-height: 56px;}
	.header .nav a{font-size: 1.6em;}
	.header .nav .arrow{position: absolute;top: 0;left: 0;z-index: 2;width: 100%;height: 56px;display: flex;align-items: center;justify-content: flex-end;font-size: 18px;}
	.header .nav .arrow i{transition: all .3s ease-out;}
	.header .nav .arrow.rotate i{transform: rotate(180deg);}
	.header .nav .children{transform: scaleY(100%);opacity: 1;position: static;width: 100%;padding-top: 0;display: none;transition: linear;}
	.header .nav .children li a{text-align: left;}
	
	.footer .contact{width: 100%;}
	.footer .contact .title{display: none;}
	.footer .nav{display: none;}
	.footer .btm .left{width: calc(100% - 40px);}
}	

@media screen and (max-width: 768px){
	.space{padding-top: 40px !important;padding-bottom: 40px !important;}
	.mg_t_80{margin-top: 40px;}
	.mg_t_60{margin-top: 30px;}
	.mg_t_40{margin-top: 30px;}
	h2{font-size: 2.4em;}
	h3{font-size: 2.2em;}
	h4{font-size: 1.8em;}
	.fs50{font-size: 2.8em;}
	.fs40{font-size: 2.4em;}
}	

@media screen and (max-width: 525px){
	.footer .main{font-size: 1.6em;}
	.footer .btm{margin-top: 20px;}
}