.about1 {
	width: 100%;
	font-size: 16px;
	line-height: 30px;
	padding: 70px 0 255px;
	color: #797979;
	overflow: hidden;
	background: url(../img/about1.jpg) no-repeat bottom center;
	text-align: justify;
	position: relative;
}
.about1:after {
	content: '';
	display: block;
	width: 841px;
	height: 329px;
	overflow: hidden;
	background-image: url(../img/about1-1.jpg);
	background-repeat: no-repeat;
	background-position: bottom center;
	background-size: 100%;
	position: absolute;
	right: 0px;
	bottom: 0px;
	z-index: 1;
}
.about1 h2 {
	width: 100%;
	line-height: 55px;
	overflow: hidden;
	padding: 0 0 22px;
	color: #333333;
	font-size: 48px;
	font-weight: lighter;
	position: relative;
	text-align: center;
	margin: 0 0 32px;
	position: relative;
	z-index: 2;
}
.about1 h2:after {
	content: '';
	display: block;
	width: 55px;
	height: 3px;
	background-color: #e62129;
	position: absolute;
	left: 50%;
	margin-left: -27.5px;
	bottom: 0px;
}
.about1 p {
	width: 1200px;
	margin: 10px auto 0;
}
.about1 .about1-txt {
	position: relative;
	z-index: 2;
}
@media only screen and (max-width: 991px) {
	.about1 {
		font-size: 26px;
		line-height: 48px;
		padding: 65px 0 285px;
	}
	.about1:after {
		width: 631px;
		height: 245px;
		background-image: url(../img/about1-1s.jpg);
	}
	.about1 h2 {
		line-height: 55px;
		padding: 0 0 22px;
		font-size: 48px;
		margin: 0 0 32px;
	}
	.about1 p {
		width: 630px;
		margin: 10px auto 0;
		text-align: left;
	}
}
@media only screen and (max-width: 700px) {
	.about1 {
		font-size: 14px;
		line-height: 25px;
		padding: 40px 0 145px;
	}
	.about1:after {
		width: 330px;
		height: 145px;
		background-image: url(../img/about1-1s.jpg);
	}
	.about1 h2 {
		line-height: 35px;
		padding: 0 0 10px;
		font-size: 28px;
		margin: 0 0 20px;
	}
	.about1 h2:after {
	    width: 30px;
	    height: 2px;
	    margin-left: -15px;
	}
	.about1 p {
		width: 330px;
		margin: 5px auto 0;
	}
}
@media only screen and (min-width: 992px) {
	header .logo img:nth-of-type(1) {
		opacity: 1;
	}
	header .logo img:nth-of-type(2) {
		opacity: 0;
	}
	.header-menu a {
		color: #000000;
	}
	.about1 {
	    font-size: 12px;
	    line-height: 20px;
	    padding: 47px 0 173px;
	    background-size: 1300px;
	}
	.about1:after {
		width: 570px;
		height: 223px;
	}
	.about1 h2 {
		line-height: 38px;
		padding: 0 0 15px;
		font-size: 32px;
		margin: 0 0 22px;
	}
	.about1 h2:after {
		width: 38px;
		height: 2px;
		margin-left: -19px;
	}
	.about1 p {
	    width: 900px;
	    margin: 7px auto 0;
	}
}
@media only screen and (min-width: 1300px) {
	.about1 {
	    font-size: 14px;
	    line-height: 25px;
	    padding: 55px 0 200px;
	    background-size: 1500px;
	}
	.about1:after {
		width: 657px;
		height: 257px;
	}
	.about1 h2 {
		line-height: 43px;
		padding: 0 0 17px;
		font-size: 38px;
		margin: 0 0 25px;
	}
	.about1 h2:after {
		width: 44px;
		height: 3px;
		margin-left: -22px;
	}
	.about1 p {
	    width: 1200px;
	    margin: 10px auto 0;
	}
}
@media only screen and (min-width: 1500px) {
	.about1 {
	    font-size: 16px;
	    line-height: 30px;
	    padding: 70px 0 255px;
	    background-size: 1920px;
	}
	.about1:after {
		width: 841px;
		height: 329px;
	}
	.about1 h2 {
		line-height: 55px;
		padding: 0 0 22px;
		font-size: 48px;
		margin: 0 0 32px;
	}
	.about1 h2:after {
		width: 55px;
		margin-left: -27.5px;
	}
}
/*弹出视频样式*/
.video-masked {
	width: 100%;
	height: 100%;
	overflow: hidden;
	background-color: rgba(0,0,0,0.75);
	position: fixed;
	left: 0px;
	top: 0px;
	z-index: 110;
	display: none;
}
.video-masked video {
	display: block;
}
.video-masked ul {
	width: 100px;
	height: 100px;
	overflow: hidden;
	background-color: #000000;
	border-radius: 0 0 0 100px;
	position: absolute;
	top: 0px;
	right: 0px;
}
.video-masked ul li {
	width: 40px;
	height: 40px;
	overflow: hidden;
	margin: 20px 0 0 40px;
	position: relative;
	cursor: pointer;
}
.video-masked ul li:before,.video-masked ul li:after {
	content: '';
	display: block;
	width: 40px;
	height: 6px;
	overflow: hidden;
	border-radius: 3px;
	background-color: #ffffff;
	position: absolute;
	left: 50%;
	top: 50%;
	margin: -3px 0 0 -20px;
	transform: rotate(45deg);
}
.video-masked ul li:after {
	transform: rotate(-45deg);
}
@media only screen and (max-width: 991px) {
	.video-masked video {
		width: 700px;
		margin: 150px auto;
	}
}
@media only screen and (max-width: 700px) {
	.video-masked video {
		width: calc(100% - 30px);
		width: -moz-calc(100% - 30px);
		width: -webkit-calc(100% - 30px);
		margin: 150px auto;
	}
	.video-masked ul {
		width: 50px;
		height: 50px;
		border-radius: 0 0 0 50px;
	}
	.video-masked ul li {
		width: 24px;
		height: 24px;
		margin: 8px 0 0 20px;
	}
	.video-masked ul li:before,.video-masked ul li:after {
		width: 24px;
		height: 4px;
		border-radius: 2px;
		margin: -2px 0 0 -12px;
	}
}
@media only screen and (min-width: 992px) {
	.video-masked video {
		width: 850px;
		margin: 150px auto;
	}
}
@media only screen and (min-width: 1300px) {
	.video-masked video {
		width: 1000px;
		margin: 100px auto;
	}
}
@media only screen and (min-width: 1500px) {
	.video-masked video {
		margin: 150px auto;
	}
}
@media only screen and (min-width: 1920px) {
	.video-masked video {
		margin: 180px auto;
	}
}
/*关于视频*/
.about2 {
	width: 100%;
	overflow: hidden;
	position: relative;
}
.about2 img {
	position: relative;
	left: 50%;
	margin-left: -960px;
}
.about2:before {
	content: '';
	display: block;
	width: 100%;
	height: 100%;
	overflow: hidden;
	z-index: 1;
	position: absolute;
	top: 0px;
	left: 0px;
	background: rgba(0,0,0,0.3) url(../img/vicon.png) no-repeat center center;
	background-size: 87px;
	cursor: pointer;
}
@media only screen and (max-width: 991px) {
	.about2 img {
		width: 1920px;
		margin-left: -960px;
	}
}
@media only screen and (max-width: 700px) {
	.about2:before {
	    background-size: 55px;
	}
	.about2 img {
		width: 800px;
		margin-left: -400px;
	}
}
@media only screen and (min-width: 992px) {
	.about2 img {
		width: 1300px;
		margin-left: -650px;
	}
}
@media only screen and (min-width: 1300px) {
	.about2 img {
		width: 1500px;
		margin-left: -750px;
	}
}
@media only screen and (min-width: 1500px) {
	.about2 img {
		width: 1920px;
		margin-left: -960px;
	}
}
@media only screen and (min-width: 1921px) {
	.about2 img {
		width: 100%;
		margin-left: 0px;
		left: 0px;
	}
}
/*创新研发*/
.about3 {
	width: 100%;
	height: 500px;
	position: relative;
}
.about3 .about3-img {
	width: 1100px;
	overflow: hidden;
	border-radius: 0px 10px 10px 0px;
	position: absolute;
	top: -115px;
	left: 50%;
	margin-left: -960px;
	z-index: 2;
}
.about3-img img {
	width: 100%;
}
.about3 .about3-txt {
	width: 240px;
	color: #666666;
	font-size: 18px;
	line-height: 28px;
	overflow: hidden;
	float: right;
	margin: 76px 200px 0 0;
}
.about3-txt h2 {
	width: 100%;
	line-height: 55px;
	overflow: hidden;
	padding: 0 0 13px;
	color: #333333;
	font-size: 48px;
	font-weight: lighter;
	position: relative;
	margin: 0 0 28px;
	position: relative;
	z-index: 2;
}
.about3-txt h2:after {
	content: '';
	display: block;
	width: 45px;
	height: 3px;
	background-color: #e62129;
	position: absolute;
	left: 0px;
	bottom: 0px;
}
@media only screen and (max-width: 991px) {
	.about3 {
		height: 600px;
	}
	.about3 .container {
		width: 100%;
	}
	.about3 .about3-img {
		width: calc(50% + 315px);
		width: -moz-calc(50% + 315px);
		width: -webkit-calc(50% + 315px);
		position: relative;
		left: 0px;
		top: -95px;
		margin-left: 0px;
	}
	.about3 .about3-txt {
		width: 630px;
		font-size: 26px;
		line-height: 37px;
		margin: -25px auto 0;
		float: none;
	}
}
@media only screen and (max-width: 700px) {
	.about3 {
		height: 350px;
	}
	.about3 .about3-img {
		width: calc(50% + 165px);
		width: -moz-calc(50% + 165px);
		width: -webkit-calc(50% + 165px);
		top: -50px;
	}
	.about3 .about3-txt {
		width: 330px;
		font-size: 16px;
		line-height: 25px;
		margin: -5px auto 0;
	}
	.about3-txt h2 {
		line-height: 35px;
		padding: 0 0 10px;
		font-size: 28px;
		margin: 0 0 15px;
	}
	.about3-txt h2:after {
		width: 30px;
		height: 2px;
	}
}
@media only screen and (min-width: 992px) {
	.about3 {
		height: 338px;
	}
	.about3 .about3-img {
		width: 745px;
		height: 416px;
		top: -78px;
		margin-left: -650px;
	}
	.about3 .about3-txt {
		width: 185px;
		font-size: 14px;
		line-height: 20px;
		margin: 51px 135px 0 0;
	}
	.about3-txt h2 {
		line-height: 37px;
		padding: 0 0 9px;
		font-size: 32px;
		margin: 0 0 19px;
	}
	.about3-txt h2:after {
		width: 30px;
		height: 2px;
	}
}
@media only screen and (min-width: 1300px) {
	.about3 {
		height: 390px;
	}
	.about3 .about3-img {
		width: 860px;
		height: auto;
		top: -90px;
		margin-left: -750px;
	}
	.about3 .about3-txt {
		width: 210px;
		font-size: 16px;
		line-height: 25px;
		margin: 60px 155px 0 0;
	}
	.about3-txt h2 {
		line-height: 43px;
		padding: 0 0 10px;
		font-size: 38px;
		margin: 0 0 22px;
	}
	.about3-txt h2:after {
		width: 35px;
		height: 3px;
	}
}
@media only screen and (min-width: 1500px) {
	.about3 {
		height: 500px;
	}
	.about3 .about3-img {
		width: 1100px;
		top: -115px;
		margin-left: -960px;
	}
	.about3 .about3-txt {
		width: 240px;
		font-size: 18px;
		line-height: 28px;
		margin: 76px 200px 0 0;
	}
	.about3-txt h2 {
		line-height: 55px;
		padding: 0 0 13px;
		font-size: 48px;
		margin: 0 0 28px;
	}
	.about3-txt h2:after {
		width: 45px;
	}
}
/*荣誉资质*/
.about4 {
	width: 100%;
	overflow: hidden;
	padding: 75px 0 110px;
	background-color: #f8f8f8;
}
.about4 .about4-title {
	width: 100%;
	overflow: hidden;
	text-align: center;
	color: #868686;
	font-size: 16px;
	line-height: 20px;
}
.about4-title h2 {
	line-height: 55px;
	color: #333333;
	font-size: 48px;
	font-weight: lighter;
	padding: 0 0 23px;
	position: relative;
	margin: 0 0 12px;
}
.about4-title h2:after {
	content: '';
	display: block;
	width: 55px;
	height: 3px;
	overflow: hidden;
	background-color: #e62129;
	position: absolute;
	left: 50%;
	bottom: 0px;
	margin-left: -27.5px;
}
.about4 .about4-swiper {
	width: 100%;
	height: 390px;
	position: relative;
	margin: 46px 0 0;
}
.about4-swiper a {
	display: block;
	width: 100%;
	height: 390px;
	border: 2px solid #dfdfdf;
	background-color: #FFFFFF;
	overflow: hidden;
	cursor: pointer;
	transition: all 0.5s;
}
.about4-swiper .about4-img {
	width: 100%;
	height: 350px;
	padding: 20px;
	overflow: hidden;
}
.about4-img img {
	width: 100%;
	border: 1px solid #e0e0e0;
	transition: all 0.5s;
}
.about4-swiper p {
	width: 100%;
	line-height: 20px;
	height: 20px;
	color: #333333;
	font-size: 14px;
	padding: 0 15px;
	overflow: hidden;
	margin: 0 0 17px;
	text-align: center;
}
.about4-swiper .swiper-slide:hover {
	z-index: 2;
	box-shadow: 0px 4px 25px 2px rgba(4,0,0,0.19);
}
.about4-swiper .swiper-slide:hover a {
	border-color: #e62129;
}
.about4-swiper .swiper-slide:hover .about4-img img {
	transform: scale(1.05);
}
.swiper-button-next, .swiper-button-prev {
    width: 45px;
    height: 45px;
    margin-top: -22px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100%;
}
.swiper-button-next.swiper-button-disabled {
	background-image: url(../img/rb.png);
	opacity: 1;
}
.swiper-button-prev.swiper-button-disabled {
	background-image: url(../img/lb.png);
    opacity: 1;
}
.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
	background-image: url(../img/lr.png);
	left: -75px;
}
.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	background-image: url(../img/rr.png);
    right: -75px;
}
@media only screen and (max-width: 991px) {
	.about4 {
	    padding: 75px 0 45px;
	}
	.about4 .about4-swiper {
	    height: auto;
	    padding: 0 0 95px;
	}
	.about4-swiper a {
		height: 409px;
	}
	.about4-swiper .about4-img {
		height: 368px;
	}
	.swiper-button-next, .swiper-button-prev {
	    width: 50px;
	    height: 50px;
	    margin-top: 0;
	    top: auto;
	    bottom: 0px;
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
		left: 245px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: 245px;
	}
}
@media only screen and (max-width: 700px) {
	.about4 {
	    padding: 40px 0 25px;
	}
	.about4 .about4-title {
	    font-size: 12px;
	}
	.about4-title h2 {
	    line-height: 35px;
	    font-size: 28px;
	    padding: 0 0 10px;
	    margin: 0 0 10px;
	}
	.about4-title h2:after {
	    width: 30px;
	    height: 2px;
	    margin-left: -15px;
	}
	.about4 .about4-swiper {
	    padding: 0 0 50px;
	    margin: 25px 0 0;
	}
	.about4-swiper a {
		height: 225px;
		border-width: 1px;
	}
	.about4-swiper .about4-img {
		height: 197px;
		padding: 10px;
	}
	.about4-swiper p {
	    font-size: 12px;
	    padding: 0 10px;
	    margin: 0 0 10px;
	}
	.swiper-button-next, .swiper-button-prev {
	    width: 30px;
	    height: 30px;
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
		left: 127px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: 127px;
	}
}
@media only screen and (min-width: 992px) {
	.about4 {
	    padding: 50px 0 75px;
	}
	.about4 .about4-title {
		font-size: 14px;
	}
	.about4-title h2 {
		line-height: 37px;
		font-size: 32px;
		padding: 0 0 15px;
		margin: 0 0 8px;
	}
	.about4-title h2:after {
		width: 37px;
		margin-left: -18.5px;
	}
	.about4 .about4-swiper {
		width: 900px;
		height: 319px;
		margin: 31px auto 0;
	}
	.about4-swiper a {
		height: 319px;
	}
	.about4-swiper .about4-img {
		padding: 15px;
		height: 283px;
	}
	.about4-swiper p {
		font-size: 12px;
		padding: 0 10px;
		margin: 0 0 12px;
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
		left: -50px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: -50px;
	}
}
@media only screen and (min-width: 1300px) {
	.about4 {
	    padding: 60px 0 85px;
	}
	.about4-title h2 {
		line-height: 43px;
		font-size: 38px;
		padding: 0 0 18px;
		margin: 0 0 9px;
	}
	.about4-title h2:after {
		width: 44px;
		height: 3px;
		margin-left: -22px;
	}
	.about4 .about4-swiper {
		width: 100%;
		height: 335px;
		margin: 36px 0 0;
	}
	.about4-swiper a {
		height: 335px;
	}
	.about4-swiper .about4-img {
		height: 302px;
	}
	.about4-swiper p {
		padding: 0 12px;
		margin: 0 0 13px;
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
		left: -75px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: -75px;
	}
}
@media only screen and (min-width: 1500px) {
	.about4 {
	    padding: 75px 0 110px;
	}
	.about4 .about4-title {
		font-size: 16px;
	}
	.about4-title h2 {
		line-height: 55px;
		font-size: 48px;
		padding: 0 0 23px;
		margin: 0 0 12px;
	}
	.about4-title h2:after {
		width: 55px;
		margin-left: -27.5px;
	}
	.about4 .about4-swiper {
		height: 390px;
		margin: 46px 0 0;
	}
	.about4-swiper a {
		height: 390px;
	}
	.about4-swiper .about4-img {
		padding: 20px;
		height: 350px;
	}
	.about4-swiper p {
		font-size: 14px;
		padding: 0 15px;
		margin: 0 0 17px;
	}
}