/* 顶部轮播图 */
.scroll_a{
	font-size: 0;
	width: 100%;
	max-height: 780px;
}
.scr_a{
	width: 100%;
	height: 100%;
}
/* 轮播图分页器样式 */
.swiper-pagination-bullet{
	transition: 300ms;
	background-color: #ffffff;
	opacity: 0.3;
}
.swiper-pagination-bullet-active{
	opacity: 1;
	background-color: #ffffff;
}
/* 功能特性 */
.fun_char{
	width: 100%;
	height: 382px;
	/*background-color: #aaa;*/
	display: flex;
	justify-content: center;
	flex-direction: column;
	align-items: center;
	margin-top: 72px;
	margin-bottom: 122px;
}
/* 标题 */
.block_title{
	font-size: 24px;
	position: relative;
	z-index: 10;
	color: #333333;
}
.block_title::after{
	opacity: 0.15;
	content: "FUNCTION";
	font-size: 18px;
	width: 120px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.block_title::before{
	opacity: 0.15;
	content: "";
	font-size: 18px;
	width: 170px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}

.f_center{
	width: 1300px;
	height: 286px;
	margin-top: 60px;
	background-color: #fff;
	display: flex;
	justify-content: center;
	align-items: center;
}
.f_c_block{
	font-size: 0;
	color: #ffffff;
	transition: 300ms;
	width: 100%;
	height: 260px;
	background-color: #3f4042;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	margin: 13px 0 13px;
	margin: 13px 0 13px;
}
.f_c_block p{
	width: 216px;
	padding: 0 15px 0;
	box-sizing: border-box;
	text-align: center;
	margin-top: 20px;
	font-size: 16px;
}
.f_c_block:hover{
	color: #333333;
	height: 286px;
	background-color: #fff;
	box-shadow: 0 3px 7px rgba(0,0,0,0.35);
	margin: 0px 0 0px;
}
.f_c_img{
	width: 64px;
	height: 64px;
	position: relative;
}
.f_c_img img{
	position: absolute;
	top: 0;
	left: 0;
	width: 64px;
	height: 64px;
}
.f_c_img img:last-child{
	transition: 300ms;
	opacity: 0;
}
.f_c_block:hover .f_c_img img:last-child{
	opacity: 1;
}
/* 关于杜邦 */
.about_db{
	font-size: 0;
	width: 100%;
	height: auto;
	min-height: 660px;
	position: relative;
	overflow: hidden;
}
.about_bgi{
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	height: 100%;
}
.abo_center{
	font-size: 16px;
	width: 1300px;
	height: 487px;
	position: absolute;
	left: 50%;
	/*background: #000;*/
	z-index: 100;
	transform: translateY(-50%) translateX(-50%);
	top: 50%;
	display: flex;
	justify-content: center;
	align-items: center;
	display: flex;
	justify-content: center;
}
.abo_c_left{
	width: 50%;
	height: 100%;
	position: relative;
	background-color: #fff;
	display: flex;
	justify-content: flex-start;
	flex-direction: column;
	align-items: flex-start;
	/*align-content: ;*/
	padding: 30px;
	box-sizing: border-box;
	z-index: 200;
}
.abo_c_left::after{
	right: 0px;
	top: 50%;
	content: "";
	position: absolute;
	height: 80px;
	width: 80px;
	z-index: -1;
	background-color: #ffffff;
	transform: translateX(28px) translateY(-50%) rotateZ(45deg);
}

.abo_c_ltitle{
	display: block;
	font-size: 24px;
	color: #333333;
	position: relative;
	margin-top: 36px;
}
.abo_c_ltitle::after{
	content: "ABOUT US";
	color: #333333;
	opacity: 0.15;
	left: 0px;
	top: -36px;
	width: 160px;
	position: absolute;
	font-size: 28px;
	font-weight: 900;
}
.abo_c_ltitle::before{
	content: "";
	color: #333333;
	/*opacity: 0.15;*/
	left: 0px;
	bottom: -8px;
	width: 50px;
	height: 3px;
	background-color: #797979;
	position: absolute;
	font-size: 28px;
	font-weight: 900;
}

.abo_c_detail{
	margin-top: 40px;
	width: 100%;
	height: 100%;
	font-size: 13px;
	line-height: 23px;
	text-indent: 2em;
	overflow: hidden;
	position: relative;
	z-index: 100;
}
.abo_c_detail p{
	text-indent: 0;
}

.abo_c_right{
	width: 50%;
	height: 100%;
	position: relative;
}

/*产品介绍*/
.products{
	width: 100%;
	height: 660px;
	margin-top: 100px;
	margin-bottom: 130px;
	/*background-color: #aaa;*/
	display: flex;
	justify-content: center;
}
.pro_center{
	width: 1300px;
	height: 100%;
	display: flex;
	justify-content: center;
	flex-direction: column;
	align-items: center;
	/*background-color: #aaa;*/
}
.block_title_2{
	font-size: 24px;
	position: relative;
	z-index: 10;
	color: #333333;
}
.block_title_2::after{
	opacity: 0.15;
	content: "PRODUCT";
	font-size: 18px;
	width: 120px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.block_title_2::before{
	opacity: 0.15;
	content: "";
	font-size: 18px;
	width: 170px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.pro_box{
	width: 100%;
	background-color: #bbb;
	height: 540px;
	margin-top: 65px;
	display: flex;
	justify-content: center;
	align-items: center;
	box-shadow: 0 3px 7px rgba(0,0,0,0.15)
}
.scroll_b{
	width: 996px;
	height: 100%;
}
.pro_switch_box{
	width: 304px;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}
.pro_s_b_list{
	font-size: 24px;
	width: 100%;
	/*background-color: #aaa;*/
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	background-color: #ffffff;
	color: #333333;
	position: relative;
	transition: 300ms;
	z-index: 100;
}
.pro_s_b_list::after{
	transition: 300ms;
	content: "";
	position: absolute;
	height: 100px;
	width: 100px;
	left: -10%;
	top: 52%;
	transform:rotateZ(45deg) translateX(-50%) translateY(-30%);
	background-color: #fff;
	opacity: 0;
}
.pro_s_b_active{
	background-color: #3f4042;
	color: #ffffff;
}
.pro_s_b_active::after{
	background-color: #3f4042;
	opacity: 1;
}
/* 产品优势 */
.pub_win{
	width: 100%;
	height: 460px;
	position: relative;
	overflow: hidden;
	display: flex;
	justify-content: center;
	align-items: center;
}
.pub_bgi{
	position: absolute;
	left: 50%;
	height: 285px;
	top:0;
	transform: translateX(-50%);
}

.pub_center{
	width: 1300px;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
}
.block_title_3{
	font-size: 24px;
	margin-top: 46px;
	position: relative;
	z-index: 10;
	color: #ffffff;
}
.block_title_3::after{
	opacity: 0.15;
	content: "ADVANTAGE";
	font-size: 18px;
	width: 120px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.block_title_3::before{
	opacity: 0.15;
	content: "";
	font-size: 18px;
	width: 170px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.pub_c_box{
	width: 100%;
	height: 310px;
	position: relative;
	z-index: 100;
	display: flex;
	justify-content: space-between;
	align-items: center;
	/*background-color: #aaa;*/
}
.pub_c_b_list{
	box-sizing: border-box;
	padding: 30px;
	width: 400px;
	height: 300px;
	background-color: #ffffff;
	box-shadow: 0 0px 6px rgba(0,0,0,0.15);
	display: flex;
	justify-content: space-around;
	align-items: center;
	flex-direction: column;
}
.pub_c_b_title{
	width: 100%;
	text-align: center;
	font-size: 16px;
	font-weight: 900;
	color: #333333;
}
.pub_c_b_detail{
	width: 100%;
	text-align: center;
	font-size: 12px;
	color: #333333;
}
/* 新闻模块 */
.news{
	width: 100%;
	height: 580px;
	margin-top: 100px;
	display: flex;
	justify-content: center;
	align-items: center;
	margin-bottom: 120px;
}
.news_center{
	width: 1300px;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	flex-direction: column;
}
.block_title_4{
	font-size: 24px;
	position: relative;
	z-index: 10;
	color: #333333;
}
.block_title_4::after{
	opacity: 0.15;
	content: "CASE";
	font-size: 18px;
	width: 120px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.block_title_4::before{
	opacity: 0.15;
	content: "";
	font-size: 18px;
	width: 170px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.news_list{
	margin-top: 90px;
	width: 1300px;
	height: 456px;
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.news_box{
	display: block;
	text-decoration: none;
	color: #333333;
	display: flex;
	justify-content: space-between;
	flex-direction: column;
	align-items: flex-start;
	width: 412px;
	height: 456px;
	box-shadow: 0 0 7px rgba(0,0,0,0.15);
	/*background-color: #bbb;*/
}
.news_box img{
	width: 100%;
	min-height: 242px;
	max-height: 242px;
}
.news_text{
	width: 100%;
	height: 100%;
	display: flex;
	box-sizing: border-box;
	padding: 15px;
	justify-content: space-between;
	align-items: flex-start;
	flex-direction: column;
}
.news_title{
	width: 100%;
	font-weight: 900;
}
.news_detail{
	width: 100%;
	font-size: 13px;
}
.button_link{
	width: 156px;
	height: 50px;
	background-color: #3f4042;
	color: #ffffff;
	text-decoration: none;
	line-height: 50px;
	text-align: center;
	font-size: 14px;
}

.a_linksss{
	position: absolute;
	text-decoration: none;
	color: #ffffff;
	background-color: #3f4042;
	height: 46px;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 118px;
	right: 0px;
	bottom: 0px;
	transform: translateY(50%) translateX(50%);
}

.newsd{
	width: 1300px;
	margin: 0 auto 0;
	height: auto;
	display: flex;
	align-items: center;
	justify-content:space-between;
	/*margin-bottom: 120px;*/
	font-size: 13px;
}
.ns_c{
	width: 1300px;
	min-height: 0px;
	box-sizing: border-box;
	/*padding: 50px 0 50px;*/
	display: flex;
	align-items: center;
	justify-content: center;
	flex-direction: column;
}
.block_title_5{
	font-size: 24px;
	position: relative;
	z-index: 10;
	color: #333333;
}
.block_title_5::after{
	opacity: 0.15;
	content: "NEWS";
	font-size: 18px;
	width: 120px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.block_title_5::before{
	opacity: 0.15;
	content: "";
	font-size: 18px;
	width: 170px;
	height: 100%;
	/*background-color: #fff;*/
	border-style: none solid none solid;
	border-width: 14px;
	text-align: center;
	border-radius: 120px;
	font-weight: 900;
	color: #B1B1AE;
	line-height: 90px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	top: 0px;
	/*background-color: #aaa;*/
	z-index: -1;
}
.ns_list{
	width: 100%;
	height: auto;
	/*margin-top: 20px;*/
	display: flex;
	align-items: center;
	justify-content: center;
	/*flex-direction: column;*/
	/*margin-top: 60px;*/
}
.ns_bl{
	/*height: 22px;*/
	/*display: block;*/
	/*width: 100%;*/
	/*margin: 10px 0 10px;*/
	/*box-shadow: 0 3px 6px rgba(0,0,0,0.15);*/
	/*text-decoration: none;*/
	color: #333333;
	margin: 0 40px 10px;
	margin-left: 0px;
	margin-right: 120px;
	text-decoration: none;
	/*line-height: 64px;*/
	/*text-indent: 20px;*/
	/*overflow-x: hidden;*/
	/*position: relative;*/
}
.ns_bl:last-child{
	margin-right: 0;
}
/*.ns_bl::before{
	transition: 500ms;
	content: attr(data-text);
	position: absolute;
	text-indent: 1300px;
	color: #ffffff;
	line-height: 64px;
	height: 100%;
	width: 100%;
	background-color: #3f4042;
	left: 0;
	top: 0;
	z-index: 100;
	overflow:hidden;
	transform: translateX(-99%);
}
.ns_bl:hover:before{
	transform: translateX(0%);
	text-indent: 30px;
}*/