* {
	padding: 0;
	margin: 0;
}

header,
section {
	display: block;
}
.all  {
	padding-left:10px;    display: inline-block;font-size: .37rem;

	color: #61656e;
}
.all > li  {
	width:200px;
	height:30px;

	line-height:45px;
	text-align:center;
	float:left;
	margin-right:10px;
	display:inline;
	position:relative;
	cursor:pointer;
}
.all  >li a{    font-size: 14px;
	float: left;}
.all ul {
	position: absolute;
	left: 0px;
	top:30px;
	display:none;
	background: #fff;
	padding: 0 20px 0 0;
}
a {
	text-decoration: none;
}

body {
	font-family: "PingFangSC-Regular", "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
}

ul,
li {
	list-style: none;
}

.conentr {
	max-width: 1920px;
	margin: 0 auto;
}

.pag {
	padding: 0 6.5%;
}

.header {
	height: 145px;

}

.nav-a {
	float: left;
	padding: .519rem 0;
	
}

.nav-a img {
	width: 1.37rem;
	margin-right: .444rem;
	vertical-align: top;
	float: left;
}

.nav-a div {
	color: #61656e;
	font-size: .407rem;
	float: left;
	    line-height: 1.3;
}

.nav-a h3 {
	font-size: .667rem;
}



.nav-b {
	float: right;
	padding: .519rem 0;
	line-height: 1.37rem;
	margin-right: .741rem;

}

.nav-b a {
	font-size: .37rem;
	margin-left: 1.852rem;
	color: #61656e;

}
.nav-b a{ margin-left: 0.5rem;text-decoration: initial}
.nav-a h3{ text-align: left}
.nav-b .active {
	font-weight: bold;
}

.section {
	background: url(../img/bg-1.jpg) no-repeat center;
	background-size: cover;
}

.section-b {
	background: url(../img/bg-2.jpg) no-repeat center;
	background-size: cover;
}

.section-d {
	background: url(../img/bg-3.jpg) no-repeat center;
	background-size: cover;
}

.section-a {
	overflow: hidden;

}
/* 操作视频的盒子 */
.section-vadio{
	padding: 0 6.5%;
	background-color: #B7B3BD;
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
	
}
.section-vadio .operation_vadio_title{
	/* margin: 0 auto; */
	width: 100%;
	text-align: center;
	font-size: .889rem;
	color: #fff;
	padding: 1.556rem 0 .993rem;
	margin-bottom: 1.148rem;
	position: relative;
}
.operation_vadio_title::after{
	content: '';
	position: absolute;
	top: 3.4rem;
	width: 1.111rem;
	height: .222rem;
	left: 0;
	right: 0;
	margin: auto;
	background: #fff;
}
.section-vadio .vadio_box{
	/* display: inline-block; */
	/*width: 29%;*/
	/*height: 7rem;*/
	width: 4.5rem;
	height: 6.8rem;
	margin-bottom: 0.625rem ;
	/*margin: 0.625rem 1.6% 0.625rem;*/
	padding-bottom: 1rem;
	display: block;
	margin-bottom: 1rem;
}
.section-vadio .vadio_box video {
	outline: none;
	object-fit: cover;
	width: 100%;
	height: 100%;
}
.section-vadio .vadio_box .introduce {
	display: inline-block;
	width: 100%;
	font-size: .37rem;
	color: #000;
	padding-top: 0.4rem;
	vertical-align: middle;
	text-align: center;
	display: block;
    height: 1rem;
    padding-bottom: 0.5rem;
	
}


/* 操作视频的盒子结束 */

.section .box {
	float: left;
	/*margin-left: .407rem;*/
}

.box-txt {
	/* width: 16rem; */
	width: 14.259rem;
	box-sizing: border-box;
	font-size: .556rem;
	color: #fff;
	padding-top: 2.407rem;
	/* padding-bottom: 2.407rem; */
	padding-bottom: 1.407rem;
	line-height: .889rem;
}

.ri-img {
	float: right;
	margin-right: 1.185rem;
	padding: 1.556rem 0 2.407rem;
	padding-top: 4.407rem;
	width: 9.074rem;
	height: 5.104rem;
}
/* 将之前的图片替换为视频 */
.ri-img vadio {
	/* margin-right: 1.185rem; */
}
/* .ri-img img {
	width: 5.37rem;
} */

.fot {
	overflow: hidden;
	padding-top: .926rem;
	margin-bottom: 1.25rem;
}

.fot-a {
	float: left;
	margin-right: .926rem;
	width: 3.074rem;
	/* display: flex; */
}
 


.aft-a1{
	display: none;
}
.fot-a p ,.aft-a1 li p{
	/* width: 100%; */
	width: 3.074rem;
	background: #fff;
	border-radius: .444rem;
	text-align: center;
	line-height: .889rem;
	font-size: .278rem;
	margin-bottom: .37rem;
	cursor: pointer;
	transition: .3s;
	/* float: left; */
}
.aft-a1{
	padding-top: .37rem;
}


.fot-a img,.aft-a1 li p img  {
	vertical-align: middle;
	margin-right: .296rem;
}

.fot-a .active,.aft-a1 li p {
	background: #94e0ff;
}

.fot-a .erweima{
	width: 2.074rem;
	margin-left: 0.5rem;
	margin-bottom: 0.5rem;
	/* float: right; */
	vertical-align: middle;
}

.fot-b {
	float: left;
	overflow: hidden;
	position: relative;
	width: 2.111rem;
	height: 2.111rem;
}

.fot-b img {
	width: 2.111rem;
}

.fot-c {
	position: absolute;
	left: 0;
	top: 0;
	width: 5rem;
	height: 2.111rem;
	transition: .3s;
}

.fot-c img {
	float: left;
}

.title-a {
	padding: 1.556rem 0 .593rem;
	position: relative;
	text-align: center;
}

.title-a h3 {
	color: #69616c;
	font-size: .889rem;
}

.title-a::after {
	content: '';
	position: absolute;
	bottom: 0;
	width: 1.111rem;
	height: .222rem;
	left: 0;
	right: 0;
	margin: auto;
	background: #69616c;

}

.title-b h3 {
	color: #fff;
}

.title-b::after {
	background: #fff;
}
.banner-a {
	padding: 2.111rem 0 2.407rem;
	overflow: hidden;
	text-align: center;
}
.banner-a img{
	width: 50%;
	/* height: 100%; */
}
/* .banner-a li {
	display: inline-block;
	margin: 0 8%;
	width: 4rem;
} */

/* .banner-a li img {
	width: 100%;
} */
.aft-a {
	float: left;
	/* padding-top: 5.333rem; */
	margin-top: 4.333rem;
	width: 10.333rem;
	/*height: 7.750rem;*/
	border-radius: .556rem;
	
}

.aft-a img {
	width: 100%;

}
/* 轮播图样式 */
 .among > .swiper-container{
	 padding: 0;
	/* padding: 2.111rem 0 2.407rem; */
}
.among > .swiper-container .swiper-slide{
	cursor: pointer;
}
.swiper-pagination-bullets  > .swiper-pagination-bullet-active{
	background-color:#61656E;
}
.swiper-button-prev::after{
	 color: #61656E;
}
.swiper-button-next::after{
    color: #61656E;
}
/* 轮播图样式结束 */
.aft-b {
	float: right;
	margin-top: 1.407rem;
	margin-bottom: 2.333rem;
	width: 14.259rem;
	background: rgba(255, 255, 255, .13);
	border-radius: .556rem;
	font-size: .444rem;
	color: #fff;
	padding: .741rem .37rem .741rem .852rem;
	line-height: .6rem;
	box-sizing: border-box;
}


.aft-c {
	line-height: .7rem;
	padding: 0 .148rem 2.259rem .741rem;
	color: #656470;
	font-size: .444rem;

}


.aft-c h3 {
	padding-top: 1.148rem;
}

.aft-d {
	padding: 4.074rem 0 2.407rem;
	color: #fff;
	text-align: center;
}

.aft-d h3 {
	font-size: 1.481rem;
}




.aft-d p {
	font-size: 1.111rem;
	margin-top: .37rem;
	margin-bottom: 1.519rem;
}


.aft-d div {
	border-radius: .185rem;
	background: rgba(255, 255, 255, .13);
	width: 91.8%;
	line-height: 2.037rem;
	font-size: .741rem;
	margin: 0 auto;
}

.aft-d span {
	margin: 0 1.13rem;

}

.section-e {
	padding-top: 1.081rem;
	padding-bottom: 1.452rem;
	/* color: #5f5f68; */
	background: #51565e;
	color: #fff;
	
	font-size: .556rem;
	text-align: center;
	line-height: 1.7;
}

@media screen and (max-width: 1750px) {
	.aft-b {
		font-size: .37rem;
		width: 12.259rem;
	}
}

@media screen and (max-width: 1600px) {
	.aft-a {
		width: 10.3333rem;
	}
}

@media screen and (max-width: 1500px) {
	.box-txt {
		/* width: 15rem; */
		width: 11.259rem;
		font-size: .519rem;
	}

	.banner-a li {
		margin: 0 7%;
	}

	.aft-d div {
		font-size: .704rem;
	}

	.aft-b {
		font-size: .333rem;
		width: 11.259rem;
	}

	.aft-a {
		width: 10.3333rem;
	}
}

@media screen and (max-width: 1400px) {

	.aft-a {
		width: 9.3333rem;
	}

	.box-txt {
		/* width: 13.3rem; */
		width: 11.259rem;
		font-size: .463rem;
	}

	.aft-d div {
		font-size: .593rem;
	}

	.section-e {
		font-size: .481rem;
	}
}

@media screen and (max-width: 1300px) {
	.aft-b {
		font-size: .333rem;
		width: 9.259rem;
	}

	.box-txt {
		/* width: 10rem; */
		width: 9.259rem;
		font-size: .333rem;
	}

	.banner-a li {
		margin: 0 6%;
	}

	.aft-d div {
		font-size: .519rem;
	}

}
@media screen and (max-width: 1200px) {
	.aft-d span{
		display: block;
		margin: 0;
	}
	.fot{
		display: none;
	}
	.banner-a li {
	    margin: 0 5%;
	}
	.aft-a1{
		display: flex;
		justify-content:space-around;
		
		}
		.aft-a1 li>img{
			width: 2.7rem;
		}
		.aft-b {
		    font-size: .24rem;
		    width: 8.259rem;
		}
		.aft-a {
		    width: 8.3333rem;
		}
}
@media screen and (max-width: 768px) {
	.nav-a {
		padding: .319rem 0;
	}

	.nav-a img {
		width: .926rem;
		margin-right: .244rem;
	}

	.nav-a h3 {
		font-size: .467rem;
	}

	.nav-a div {
		font-size: .25rem;
	}

	.nav-b {
		padding: 0;
		line-height: 1.37rem;
		margin-right: .2rem;
	}

	.nav-b a {
		margin-left: 0.4rem;
	}
.box-txt {
    width: 100%;
    font-size: 0.3703rem;
	padding-top: .407rem;
	padding-bottom: .407rem;
    line-height: 1.5;
}
.section .box {
    float: none;
    margin-left: 0;
}
.ri-img {
    float: none;
	text-align: center;
	margin-right: 0;
    padding: .5rem 0 1rem;
}
.banner-a {
    padding: 1.111rem 0 1.407rem;
}
/* 轮播图样式 */
.among > .swiper-container{
	padding: 1.111rem 0 1.407rem;
}

/* 轮播图样式结束 */
.title-a {
    padding: 0.556rem 0 .493rem;
}
.banner-a li {
    margin: 0 3%;
    width: 2rem;
}
.aft-a {
    float: none;
    padding-top: 1.333rem;
    width: 100%;
}
.aft-b {
    float: none;
    margin-top: 1rem;
    margin-bottom: 1rem;
    width: 100%;
	}
	.aft-c {
	    padding: 0 .148rem 1.259rem .741rem;
	}
	.aft-c h3 {
	    padding-top: .4rem;
	}
	.aft-d {
	    padding: 1.074rem 0 1.407rem;
	}
	.aft-d p {
	    font-size: .6rem;
	    margin-top: .17rem;
	    margin-bottom: 0.519rem;
	}
	.aft-d div {
		line-height: 1.037rem;
	    font-size: 0.38rem;
	}
	
	.aft-d h3 {
	    font-size: 1rem;
	}
	.section-e {
	    padding-top: 0.481rem;
	    padding-bottom: 0.852rem;
	    font-size: .556rem;
	    line-height: 1.6;
	}
}
@media screen and (max-width: 320px) {
	.nav-b a {
	    margin-left: 0.3rem;
	}
	.nav-a img {
	    margin-right: .144rem;
	}
}