@font-face {
  	font-family: "Roboto-Black";
  	src: url("../fonts/Roboto/Roboto-Black.woff2") format("woff2"),
       url("../fonts/Roboto/Roboto-Black.woff") format("woff"),
       url("../fonts/Roboto/Roboto-Black.ttf") format("truetype"),
       url("../fonts/Roboto/Roboto-Black.eot") format("embedded-opentype"),
       url("../fonts/Roboto/Roboto-Black.svg") format("svg");
    font-style: normal;
    font-weight: normal;
}
.about1 {
	width: 100%;
	overflow: hidden;
	background-color: #fafafa;
	padding: 70px 0 175px;
}
.about1 .about1-title {
	width: 100%;
	height: 55px;
	overflow: hidden;
	position: relative;
	text-align: center;
	margin: 0 0 30px;
}
.about1-title h1 {
	font-family: "Roboto-Black";
	color: #f2f1f1;
	font-size: 48px;
	line-height: 65px;
}
.about1-title h2 {
	width: 100%;
	font-size: 42px;
	line-height: 55px;
	color: #333333;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 2;
}
.about1 .about1-txt {
	width: 100%;
	color: #7a7a7a;
	font-size: 16px;
	line-height: 28px;
	overflow: hidden;
	text-align: justify;
}
.about1 .about1-txt p {
	margin: 0 0 15px;
}
.about1 .about1-video {
	width: calc(100% - 90px);
	width: -moz-calc(100% - 90px);
	width: -webkit-calc(100% - 90px);
	height: 585px;
	position: relative;
	margin: 30px auto 0;
	text-align: center;
}
.about1 .about1-video video {
	width: 100%;
	height: 100%;
	background-color: #000000;
	position: absolute;
	left: 0;
	top: 0;
	z-index: 2;
}
.about1-video>img:first-of-type {
	position: absolute;
	left: -110px;
	bottom: -110px;
	z-index: 1;
}
.about1-video>img:nth-of-type(2) {
	width: 100%;
	position: relative;
	z-index: 3;
}
.about1-video .video-icon {
	width: 80px;
	overflow: hidden;
	cursor: pointer;
	position: absolute;
	left: 50%;
	top: 50%;
	margin: -125px 0 0 -40px;
	z-index: 3;
	font-weight: bold;
	color: #FFFFFF;
	font-size: 26px;
	font-family: "arial, helvetica, sans-serif";
}
.about1-video .video-icon img {
	width: 100%;
}
@media only screen and (max-width: 991px) {
	.about1 {
		padding: 70px 0 125px;
	}
	.about1 .about1-title {
		height: 75px;
		margin: 0 0 30px;
	}
	.about1-title h1 {
		font-size: 64px;
		line-height: 75px;
	}
	.about1-title h2 {
		font-size: 48px;
		line-height: 75px;
	}
	.about1 .about1-txt {
	    font-size: 20px;
	    line-height: 35px;
	    text-align: left;
	}
	.about1 .about1-video {
	    width: 100%;
	    height: 340px;
	}
	.about1-video .video-icon {
		margin: -60px 0 0 -40px;
	}
	.about1-video>img:first-of-type {
	    left: -70px;
	    bottom: -70px;
	}
}
@media only screen and (max-width: 750px) {
	.about1 {
		padding: 40px 0 65px;
	}
	.about1 .about1-title {
		height: 35px;
		margin: 0 0 20px;
	}
	.about1-title h1 {
		font-size: 32px;
		line-height: 35px;
	}
	.about1-title h2 {
		font-size: 28px;
		line-height: 35px;
	}
	.about1 .about1-txt {
	    font-size: 15px;
	    line-height: 25px;
	}
	.about1 .about1-video {
	    height: 170px;
	    margin: 15px auto 0;
	}
	.about1-video .video-icon {
		width: 50px;
		margin: -33px 0 0 -25px;
		font-size: 14px;
		line-height: 25px;
	}
	.about1-video>img:first-of-type {
		width: 132px;
	    left: -35px;
	    bottom: -35px;
	}
}
@media only screen and (min-width: 992px) {
	.about1 {
		padding: 70px 0 110px;
	}
	.about1 .about1-video {
	    height: 445px;
	    margin: 30px auto 0;
	}
	.about1-video>img:first-of-type {
	    left: -55px;
	    bottom: -55px;
	}
	.about1-video .video-icon {
		margin: -60px 0 0 -40px;
	}
}
@media only screen and (min-width: 1300px) {
	.about1 {
		padding: 70px 0 175px;
	}
	.about1 .about1-video {
	    height: 585px;
	    margin: 30px auto 0;
	}
	.about1-video>img:first-of-type {
	    left: -110px;
	    bottom: -110px;
	}
	.about1-video .video-icon {
		margin: -70px 0 0 -40px;
	}
}
/*荣誉资质*/
.about2 {
	width: 100%;
	overflow: hidden;
	background-color: #ececec;
	padding: 65px 0 55px;
}
.about2 .about2-title {
	width: 100%;
	overflow: hidden;
	color: #666666;
	line-height: 20px;
	text-align: center;
	margin: 0 0 22px;
}
.about2 .about2-title h1 {
	font-size: 42px;
	color: #333333;
	margin: 0 0 10px;
}
.about2 .about2-menu {
	width: 260px;
	overflow: hidden;
	text-align: center;
	margin: 0 auto 45px;
}
.about2-menu a {
	display: block;
	width: 120px;
	line-height: 30px;
	overflow: hidden;
	color: #FFFFFF;
	float: left;
	font-size: 12px;
	border-radius: 15px;
	background-color: #a2a2a2;
	cursor: pointer;
	position: relative;
}
.about2-menu a:first-of-type {
	margin: 0 20px 0 0;
}
.about2-menu a span {
	position: relative;
	z-index: 2;
}
.about2-menu a:before {
	content: '';
	display: block;
	width: 310px;
	height: 310px;
	position: absolute;
	z-index: 1;
	left: -95px;
    top: -335px;
	transform: rotate(70deg);
	transition: all 0.5s;
}
.about2-menu a:hover:before {
    background-color: #ea5504;
	transform: rotate(90deg);
    top: -250px;
}
.about2-menu a.active:before {
    background-color: #ea5504;
	transform: rotate(90deg);
    top: -250px;
}
.about2-swiper {
	width: 100%;
	overflow: hidden;
	text-align: center;
}
.about2-swiper .swiper-container {
	display: none;
	padding: 0 0 35px;
}
.about2-swiper .swiper-container.active {
	display: block;
}
.about2-swiper .about2-top {
	width: 100%;
	overflow: hidden;
	background-color: #FFFFFF;
	cursor: pointer;
}
.about2-top .about2-img {
	width: 100%;
	overflow: hidden;
	padding: 15px 10px;
}
.about2-img a {
	display: block;
	width: 100%;
	height: 190px;
	overflow: hidden;
}
.about2-img a img {
	width: 100%;
	transition: all 0.5s;
}
.about2-swiper h4 {
	width: 100%;
	overflow: hidden;
	height: 36px;
	font-size: 13px;
	line-height: 36px;
	background-color: #dbdbdb;
	cursor: pointer;
	transition: all 0.5s;
	position: relative;
}
.about2-swiper h4 span {
	position: relative;
	z-index: 2;
}
.about2-swiper h4:before {
	content: '';
	display: block;
	width: 600px;
	height: 600px;
	position: absolute;
	left: -150px;
	bottom: 30px;
	transform: rotate(-10deg);
	transition: all 0.5s;
}
.about2-swiper .swiper-slide:hover .about2-img a img {
	transform: scale(1.05);
}
.about2-swiper .swiper-slide:hover h4 {
	color: #FFFFFF;
}
.about2-swiper .swiper-slide:hover h4:before {
	background-color: #ea5504;
	bottom: 0px;
	transform: rotate(0deg);
}
.about2-swiper .swiper-container-horizontal>.swiper-pagination-bullets,.about2-swiper .swiper-pagination-custom,.about2-swiper .swiper-pagination-fraction {
	bottom: 0;
}
.about2-swiper .swiper-pagination-bullet {
	width: 12px;
	height: 12px;
}
.about2-swiper .swiper-pagination-bullet-active {
	background-color: #ea5504;
}
@media only screen and (max-width: 750px) {
	.about2 {
		padding: 40px 0 30px;
	}
	.about2 .about2-title {
		line-height: 20px;
		margin: 0 0 15px;
	}
	.about2 .about2-title h1 {
		font-size: 30px;
	}
	.about2 .about2-menu {
		width: 190px;
		margin: 0 auto 25px;
	}
	.about2-menu a {
		width: 90px;
		line-height: 28px;
		border-radius: 14px;
	}
	.about2-menu a:first-of-type {
		margin: 0 10px 0 0;
	}
	.about2-img a {
	    height: 92px;
	}
	.about2-swiper .about2-top {
	    padding: 10px 7px;
	}
	.about2-swiper h4 {
	    height: 30px;
	    font-size: 12px;
	    line-height: 30px;
	}
}
/*技术研发*/
.about3 {
	width: 100%;
	height: 693px;
	overflow: hidden;
	position: relative;
	background-image: url(../img/about3-1.jpg);
	background-size: auto 100%;
	background-repeat: no-repeat;
	background-position: right center;
}
.about3 .about3-img {
	width: 1152px;
	overflow: hidden;
	position: relative;
	top: 0px;
	left: 50%;
	margin-left: -960px;
}
.about3 .about3-img img {
	width: 100%;
}
.about3 .about3-txt {
	width: 450px;
	overflow: hidden;
	position: absolute;
	top: 125px;
	left: 50%;
	margin-left: 150px;
	color: #666666;
	font-size: 16px;
	line-height: 30px;
	padding: 0 0 0 110px;
}
.about3-txt h4 {
	font-size: 30px;
	font-weight: bold;
	color: #333333;
	margin: 0 0 20px;
}
.about3 .about3-txt:before {
	content: '';
	display: block;
	width: 80px;
	height: 2px;
	background-color: #ea5505;
	position: absolute;
	left: 0px;
	top: 15px;
}
@media only screen and (max-width: 991px) {
	.about3 {
		height: auto;
		background-size: 100% auto;
		background-position: bottom center;
	}
	.about3 .about3-img {
		width: 100%;
		left: 0px;
		margin-left: 0px;
	}
	.about3 .about3-txt {
		position: relative;
		width: 670px;
		top: 0px;
		margin-left: -335px;
		font-size: 24px;
		line-height: 40px;
		padding: 110px 0;
	}
	.about3-txt h4 {
		font-size: 48px;
		margin: 0 0 20px;
	}
	.about3 .about3-txt:before {
		display: none;
	}
}
@media only screen and (max-width: 750px) {
	.about3 .about3-txt {
		width: 334px;
		margin-left: -167px;
		font-size: 15px;
		line-height: 25px;
		padding: 55px 0;
	}
	.about3-txt h4 {
		font-size: 28px;
		margin: 0 0 10px;
	}
}
@media only screen and (min-width: 992px) {
	.about3 {
		height: 470px;
	}
	.about3 .about3-img {
	    width: 785px;
	    margin-left: -650px;
	}
	.about3 .about3-txt {
	    width: 385px;
	    margin-left: 90px;
	}
}
@media only screen and (min-width: 1300px) {
	.about3 {
		height: 693px;
	}
	.about3 .about3-img {
	    width: 1152px;
	    margin-left: -960px;
	}
	.about3 .about3-txt {
	    width: 450px;
	    margin-left: 150px;
	}
}
/*品质保障*/
.about4 {
	width: 100%;
	height: 693px;
	overflow: hidden;
	position: relative;
}
.about4 .about4-img {
	width: 1152px;
	overflow: hidden;
	position: relative;
	top: 0px;
	left: 50%;
	margin-left: -191px;
}
.about4 .about4-img img {
	width: 100%;
}
.about4 .about4-txt {
	width: 455px;
	overflow: hidden;
	position: absolute;
	top: 125px;
	left: 50%;
	margin-left: -605px;
	color: #666666;
	font-size: 16px;
	line-height: 30px;
	padding: 0 110px 0 0;
}
.about4-txt h4 {
	font-size: 30px;
	font-weight: bold;
	color: #333333;
	margin: 0 0 20px;
}
.about4 .about4-txt:before {
	content: '';
	display: block;
	width: 80px;
	height: 2px;
	background-color: #ea5505;
	position: absolute;
	right: 0px;
	top: 15px;
}
.about4 .about4-txt a {
	display: block;
	width: 155px;
	height: 37px;
	overflow: hidden;
	border-radius: 19px;
	background-color: #ea5505;
	font-size: 14px;
	text-align: center;
	line-height: 37px;
	color: #FFFFFF;
	position: relative;
	margin: 190px 0 0;
}
.about4-txt a:before {
	content: '';
	display: block;
	width: 310px;
	height: 310px;
	position: absolute;
	z-index: 1;
	left: -95px;
    top: -335px;
	transform: rotate(70deg);
    background-color: rgba(255,255,255,0.3);
	transition: all 0.5s;
}
.about4-txt a span {
	display: inline-block;
	position: relative;
	z-index: 2;
}
.about4-txt a em {
	display: inline-block;
	width: 24px;
	height: 24px;
	overflow: hidden;
	position: relative;
	z-index: 2;
	top: 6px;
	margin: 0 0 0 30px;
}
.about4-txt a em img {
	position: absolute;
	top: 50%;
	left: 50%;
	margin: -5px 0 0 -6px;
}
.about4-txt a:hover:before {
	transform: rotate(90deg);
    top: -250px;
}
@media only screen and (max-width: 991px) {
	.about4 {
		height: auto;
	}
	.about4 .about4-img {
		width: 100%;
		left: 0px;
		margin-left: 0px;
	}
	.about4 .about4-txt {
		position: relative;
		width: 670px;
		top: 0px;
		margin-left: -335px;
		font-size: 24px;
		line-height: 40px;
		padding: 110px 0;
	}
	.about4-txt h4 {
		font-size: 48px;
		margin: 0 0 20px;
	}
	.about4 .about4-txt:before {
		display: none;
	}
	.about4 .about4-txt a {
	    width: 260px;
	    height: 62px;
	    border-radius: 31px;
	    font-size: 24px;
	    line-height: 62px;
	    margin: 80px 0 0;
	}
	.about4-txt a span {
		position: relative;
		top: -8px;
	}
	.about4-txt a em {
	    width: 48px;
	    height: 48px;
	    top: 7px;
	}
	.about4-txt a em img {
		width: 21px;
	    margin: -9px 0 0 -10px;
	}
}
@media only screen and (max-width: 750px) {
	.about4 .about4-txt {
		width: 334px;
		margin-left: -167px;
		font-size: 15px;
		line-height: 25px;
		padding: 55px 0;
	}
	.about4-txt h4 {
		font-size: 28px;
		margin: 0 0 10px;
	}
	.about4 .about4-txt a {
	    width: 155px;
		height: 37px;
		border-radius: 19px;
		font-size: 14px;
		line-height: 37px;
	    margin: 40px 0 0;
	}
	.about4-txt a span {
		top: 0px;
	}
	.about4-txt a em {
	    width: 24px;
		height: 24px;
	    top: 6px;
	}
	.about4-txt a em img {
		width: 12px;
	    margin: -5px 0 0 -6px;
	}
}
@media only screen and (min-width: 992px) {
	.about4 {
		height: 470px;
	}
	.about4 .about4-img {
	    width: 785px;
	    margin-left: -130px;
	}
	.about4 .about4-txt {
	    width: 385px;
		margin-left: -475px;
	}
}
@media only screen and (min-width: 1300px) {
	.about4 {
		height: 693px;
	}
	.about4 .about4-img {
	    width: 1152px;
		margin-left: -191px;
	}
	.about4 .about4-txt {
	    width: 450px;
		margin-left: -605px;
	}
}
.honor-masked {
	width: 100%;
	height: 100%;
	overflow: hidden;
	position: fixed;
	left: 0;
	top: 0;
	z-index: 1000;
	background-color: rgba(0,0,0,0.8);
	display: none;
}
.honor-masked ul {
	width: 90px;
	height: 90px;
	overflow: hidden;
	border-radius: 0 0 0 90px;
	background-color: #000000;
	position: absolute;
	top: 0;
	right: 0;
}
.honor-masked ul li {
	width: 40px;
	height: 40px;
	position: relative;
	overflow: hidden;
	margin: 15px 0 0 30px;
	cursor: pointer;
}
.honor-masked ul li:before,.honor-masked ul li:after {
	content: '';
	width: 40px;
	height: 4px;
	background-color: #FFFFFF;
	border-radius: 2px;
	overflow: hidden;
	position: absolute;
	left: 50%;
	top: 50%;
	margin: -2px 0 0 -20px;
	transform: rotate(45deg);
}
.honor-masked ul li:after {
	transform: rotate(-45deg);
}
.honor-masked .masked-img {
	width: 660px;
	height: 660px;
	overflow: hidden;
	position: relative;
	left: 50%;
	top: 50%;
	margin: -330px 0 0 -330px;
}
.masked-img img {
	width: 100%;
	height: 100%;
	-o-object-fit: contain;
    object-fit: contain;
}
@media only screen and (max-width: 750px) {
	.honor-masked .masked-img {
		width: 330px;
    	height: 330px;
    	margin: -165px 0 0 -165px;
	}
}