* {
	padding: 0;
	margin: 0;
}

a {
	text-decoration: none;
}

li {
	list-style: none;
}

.flex {
	display: flex;
}

.mr50 {
	margin-right: 50px;
}

.mt6 {
	margin-top: 6px;
}

.mt12 {
	margin-top: 12px;
  display: flex;
  align-items: baseline;
}

.mt50 {
	margin-top: 50px;
}

.ml60 {
	margin-left: 60px;
}

.ml80 {
	margin-left: 80px;
}

.mtb10 {
	margin: 10px auto;
}

.mtb30 {
	margin: 30px auto;
}

.foot {
	max-width: 1920px;
	min-width: 1300px;
	height: 220px;
	background: #232628;
	opacity: 1;
	margin: auto;
}
.public {
	display: flex;
	padding-top: 50px;
}

.public>li:nth-child(1) {
	margin-right: 30px;
}

.public_img {
	width: 104px;
	height: 104px;
	background: #ffffff;
	border: 1px solid #707070;
	opacity: 1;
}

.public_text {
	width: 84px;
	height: 19px;
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 19px;
	color: #ffffff;
	opacity: 1;
	padding-left: 10px;
}
.titletop{
	display: flex;
	width: 1191px;
	margin: 0 auto;
	position: relative;
}
.titletop>a:nth-child(1){
	position: absolute;
	left: 0;
}
.titletop>a:nth-child(2){
	position: absolute;
	left: 1089;
}

.xian {
	width: 527px;
	height: 0px;
	border: 1px solid #ffffff;
	opacity: 1;
}

.text {
	width: 28px;
	height: 19px;
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 25px;
	color: #ffffff;
	opacity: 1;
}

.bangquan {
	height: 19px;
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 19px;
	color: #ffffff;
	opacity: 1;
}

.call_me {
	height: 19px;
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: bold;
	line-height: 19px;
	color: #ffffff;
	opacity: 1;
}

.call_me_all {
	display: inline-block;
	font-size: 13px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 26px;
	color: #ffffff;
	opacity: 1;
	width: 249px;
	word-wrap:break-word;
}
.address{
  font-size: 13px;
	vertical-align: top;
	color: #ffffff;
	font-family: Microsoft YaHei;
	font-weight: 400;
}

#app {
	max-width: 1920px;
}


.flex {
	display: flex;
}


header {
	position: relative;
	background: #ffffff;
	opacity: 1;
	top: 0;
	background: url(https://hongteng-image.oss-cn-shanghai.aliyuncs.com/official-website/img/banner-about-us.png) no-repeat center center;
	min-width: 1300px;
	height: 400px;
}



.top {
	max-width: 1920px;
	min-width: 1300px;

	width: 100%;
	height: 68px;
	background: rgba(00, 00, 00, 0.3);
	position: absolute;

	top: 0;
	z-index: 2;
}

header a img {
	position: absolute;
	z-index: 2;
}


header .title {
	margin-left: 531px;
		display: flex;
		z-index: 2;
	}
	
	header .title>li {
		padding: 24px 25px;
		z-index: 2;
		width: 64px;
	}
	header .title>li:nth-child(1){
		width: 32px;
	}
	header .title li a {
		display: block;
		width: 100%;
		height: 100%;
		text-align: center;
		color: #ffffff;
		font-size: 16px;
		z-index: 2;
	
	}


.product_case:hover .opt {
	transition-property: all;
	transition-duration: 0.5s;
	margin-top: 0px;
	height: 120px;
}

.product_case:hover .opt_i {
	opacity: 0.7;
}

.product_case_none {
	position: absolute;
	height: 0;
	left: -365px;
	top: -26px;
	transition-duration: 0.5s;
}

.opt {
	position: absolute;
	width: 1920px;
	height: 0;
	background-color: rgba(00, 00, 00, 0.7);
	top: 88px;
	overflow: hidden;
	transition-property: all;
	transition-duration: 0.5s;

}

.product_case_none .opt_i {
	position: absolute;
	opacity: 0;
	border-top: 9.5px solid transparent;
	border-right: 5.5px solid transparent;
	border-bottom: 9.5px solid #000;
	border-left: 5.5px solid transparent;
	left: 1033px;
	top: 69px;
}


.opt_ul p {
	width: 128px;
	height: 21px;
	font-size: 16px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 21px;
	color: #FFFFFF;
	opacity: 1;
}

.opt_ul p:nth-child(1) {
	margin-top: 28px;
	margin-bottom: 10px;
}

.opt_ul {
	width: 228px;
	height: 32px;
	font-size: 12px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 16px;
	color: #FFFFFF;
	opacity: 1;
	margin-left: 395px
}

.opt_ul span {
	display: block;
	width: 228px;
	height: 32px;
	font-size: 12px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 16px;
	color: #FFFFFF;
	opacity: 1;
}

.opt_ul span:nth-child(1) {
	margin-right: 40px;
}

.opt_ul span:nth-child(2) {
	margin-right: 29px;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	overflow: hidden;
	text-align: left;
}

.opt_ul span:nth-child(3) {
	margin-right: 29px;
}

.opt_xian {
	width: 0px;
	height: 80px;
	border: 1px solid #CCCCCC;
	opacity: 1;
	margin-top: 20px;
	margin-right: 40px;
	background-color: #ccc;
}

header label {
	width: 80px;
	position: absolute;
	top: 24px;
	left: 1004px;
	color: #ffffff;
	font-size: 16px;
	z-index: 2;
}

header img {
	position: absolute;
	z-index: 2;
}


h3 {
	width: 112px;
	height: 37px;
	font-size: 28px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 37px;
	color: #333333;
	opacity: 1;
	margin-top: 60px;
	margin-right: 10px;
	margin-bottom: 30px;
}

.mt46 {
	margin-top: 46px;
}


.bg {
	background: #FAFAFA;
}

.aperture_tree {
	margin-top: 70px;
	width: 0px !important;
	height: 0px !important;
	border-top: 11px solid transparent;
	border-right: 14px solid transparent;
	border-bottom: 11px solid transparent;
	border-left: 14px solid #2181ed;
	opacity: 1;
}

.main1_img {
	width: 500px;
	height: 360px;
	/* background: #CCCCCC; */
	opacity: 1;
	margin-right: 88px;
	margin-bottom: 60px;
	
	display:flex;
	align-items: center;
    justify-content: center;
}

.text {
	width: 562px;
	height: 349px;
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 25px;
	color: #666666;
	opacity: 1;
}

.main2 {
	background: #FAFAFA;
	opacity: 1;
	padding-bottom: 61px;
	width: 1190px;
	height: auto;
	margin: auto;
}

.main2_ul li {
	display: block;
	width: 400px;
	height: 281px;
	background: #CCCCCC;
	border: 1px solid #707070;
	opacity: 1;
	margin-right: 21px;

	display:flex;
	align-items: center;
    justify-content: center;
}

.main2 span {
	margin-bottom: 30px;
	display: block;
	width: 200px;
	height: 60px;
	background: #2181ED;
	opacity: 1;
	border-radius: 6px;
	font-size: 22px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 60px;
	color: #FFFFFF;
	text-align: center;
	opacity: 1;
	margin-left: 495px;
}
.main3{
	width: 1190px;
	height: auto;
	margin: auto;

}



.main3 ul li div {
	width: 486px;
	height: 60px;
	background: #2181ED;
	box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
	opacity: 1;
	border-radius: 4px;
}

.main3 ul div {
	position: relative;
	
}

.main3 div span {
	position: absolute;
	top: 20px;
	height: 21px;
	font-size: 16px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 21px;
	color: #FFFFFF;
	opacity: 1;
	margin-left: 30px;
	padding-right: 20px;
}

.main3 img {
	width: 45px;
	margin-left: 45px;
	margin-right: 30px;
	height: 45px;
}

.left_i {
	position: absolute;
	top: 16px;
	left: 485px;
	width: 0px !important;
	height: 0px !important;
	border-top: 8px solid transparent;
	border-right: 12px solid transparent;
	border-bottom: 8px solid transparent;
	border-left: 12px solid #2181ed;
	opacity: 1;
}

.right_i {
	position: absolute;
	top: 16px;
	left: -24px;
	width: 0px !important;
	height: 0px !important;
	border-top: 8px solid transparent;
	border-right: 12px solid #2181ed;
	border-bottom: 8px solid transparent;
	border-left: 12px solid transparent;
	opacity: 1;
}

.main3 li>span {
	width: 114px;
	height: 21px;
	font-size: 16px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 21px;
	color: #666666;
	opacity: 1;
	margin-top: 12px;
}

.left_span {
	margin: 62px 30px 77px 387px !important;
}

.left_img {
	margin-left: 0 !important;
	margin-top: 50px;
}

.left_div {
	margin-top: 50px;
	margin-left: 14px;
}

.ulshu {
	position: relative;
	float: left;
	width: 0px;
	height: 4930px;
	border: 1px solid #707070;
	opacity: 1;
	top: -33px;
	left: 553px;
	z-index: -1;
}

.main4 {
	margin-top: 56px;
	width: 1190px;
	height: auto;
	margin: auto;
}

.dd {
	position: relative;
	width: 1107px;
	height: 380px;
	background: #C2C2C2;
	opacity: 1;
	margin-bottom: 60px;
}

.dd ul {
	position: absolute;
	left: 30px;
	top: 26px;
	width: 330px;
	height: 210px;
	background: #FFFFFF;
	box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.16);
	opacity: 1;
}

.dd ul .callme {
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: bold;
	line-height: 19px;
	color: #333333;
	opacity: 1;
	margin: 30px auto 16px 20px;
}

.dd ul .gs {
	font-size: 16px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 21px;
	color: #666666;
	opacity: 1;
	margin-left: 20px;
	margin-right: 30px;
}

.dd ul .tex {
	font-size: 14px;
	font-family: Microsoft YaHei;
	font-weight: 400;
	line-height: 21px;
	color: #666666;
	opacity: 1;
	margin: 13px 30px 0 20px;
}

.main4 {
	height: 567px;
	background: #FAFAFA;
	opacity: 1;
}
.main1{
	width: 1190px;
	height: auto;
	margin: auto;
}
.main4parn{
	background-color: #FAFAFA;
	width: 100%;
	height: auto;
}
.main2parn{
	background-color: #FAFAFA;
	width: 100%;
	height: auto;
}