.about1 {
	width: 100%;
	overflow: hidden;
	padding: 75px 0 125px;
	position: relative;
}
h2 {
	width: 100%;
	height: 55px;
	line-height: 33px;
	font-size: 30px;
	text-align: center;
	overflow: hidden;
	position: relative;
}
h2:after {
	content: '';
	display: block;
	width: 64px;
	height: 5px;
	background-image: linear-gradient(to right,#e70c1d,#f0860c);
	position: absolute;
	left: 50%;
	bottom: 0px;
	margin-left: -32px;
}
.about1 .about1-txt {
	width: 100%;
	overflow: hidden;
	padding: 0 20px;
	text-align: center;
	color: #5c5c5c;
	font-size: 16px;
	line-height: 26px;
	margin: 35px 0 60px;
}
.about1 .about1-txt p {
	margin: 0 0 10px;
}
.about1 .about1-swiper {
	width: 100%;
	height: 210px;
	position: relative;
}
.about1-swiper .swiper-container {
	width: calc(100% - 40px);
	width: -moz-calc(100% - 40px);
	width: -webkit-calc(100% - 40px);
	overflow: hidden;
	margin: 0 auto;
}
.about1-swiper .swiper-slide img {
	width: 100%;
}
.swiper-button-next, .swiper-button-prev {
    position: absolute;
    top: 50%;
    width: 50px;
    height: 50px;
    overflow: hidden;
    border-radius: 50%;
    margin-top: -25px;
    z-index: 10;
    background-repeat: no-repeat !important;
    background-position: center center !important;
    background-size: 100% !important;
}
.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
	background: url(../image/swl.png);
    left: -50px;
}
.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	background: url(../image/swr.png);
    right: -50px;
}
.swiper-button-next.swiper-button-disabled {
	background: url(../image/swr-d.png);
	opacity: 1;
}
.swiper-button-prev.swiper-button-disabled {
	background: url(../image/swl-d.png);
    opacity: 1;
}
@media only screen and (max-width: 991px) {
	h2 {
	    height: 85px;
	    line-height: 50px;
	    font-size: 48px;
	}
	h2:after {
	    width: 90px;
	    height: 8px;
	    margin-left: -45px;
	}
	.about1 .about1-swiper {
		height: 169px;
	}
}
@media only screen and (max-width: 750px) {
	h2 {
	    height: 45px;
	    line-height: 30px;
	    font-size: 28px;
	}
	h2:after {
	    width: 50px;
	    height: 3px;
	    margin-left: -25px;
	}
	.about1 {
	    padding: 40px 0 50px;
	}
	.about1 .about1-txt {
	    padding: 0;
	    font-size: 14px;
	    line-height: 20px;
	    margin: 20px 0;
	    text-align: justify !important;
	}
	.about1 .about1-swiper {
		height: 88px;
	}
	.about1-swiper .swiper-container {
	    width: 100%;
	}
	.swiper-button-next, .swiper-button-prev {
	    width: 30px;
	    height: 30px;
	    margin-top: -15px;
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
	    left: -20px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: -20px;
	}
}
@media only screen and (min-width: 992px) {
	.about1 .about1-swiper {
		height: 160px;
	}
	.about1-swiper .swiper-container {
	    width: calc(100% - 80px);
	    width: -moz-calc(100% - 80px);
	    width: -webkit-calc(100% - 80px);
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
	    left: -20px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: -20px;
	}
}
@media only screen and (min-width: 1300px) {
	.about1 .about1-swiper {
		height: 210px;
	}
	.about1-swiper .swiper-container {
	    width: calc(100% - 40px);
	    width: -moz-calc(100% - 40px);
	    width: -webkit-calc(100% - 40px);
	}
	.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
	    left: -50px;
	}
	.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
	    right: -50px;
	}
}
/*生产装备 品质保障*/
.about2 {
	width: 100%;
	overflow: hidden;
	background-color: #f5f5f5;
	position: relative;
}
.about3 {
	width: 100%;
	overflow: hidden;
	background-color: #FFFFFF;
	position: relative;
}
.about2 .container,.about3 .container{
	position: relative;
}
.about2 h2,.about3 h2 {
	text-align: justify;
	color: #333333;
	margin: 0 0 30px;
}
.about2 h2:after,.about3 h2:after {
	left: 0px;
	margin-left: 0px;
}
.about2 .about2-img {
	width: 1080px;
	overflow: hidden;
	position: relative;
	left: 50%;
	margin-left: -960px;
}
.about3 .about3-img {
	width: 1080px;
	overflow: hidden;
	position: relative;
	left: 50%;
	margin-left: -120px;
}
.about2 .about2-img img,.about3 .about3-img img {
	width: 100%;
}
.about2 .about2-txt {
	width: 420px;
	color: #666666;
	font-size: 14px;
	line-height: 25px;
	overflow: hidden;
	position: absolute;
	top: 120px;
	left: 50%;
	margin-left: 180px;
}
.about3 .about3-txt {
	width: 425px;
	color: #666666;
	font-size: 14px;
	line-height: 25px;
	overflow: hidden;
	position: absolute;
	top: 120px;
	left: 0px;
	margin-left: 0px;
}
.about2 .about2-txt .about2-swiper,.about3 .about3-txt .about3-swiper {
	width: 100%;
	overflow: hidden;
	margin: 90px 0 0;
	height: 128px;
}
.about2 .about2-txt .about2-swiper img,.about3 .about3-txt .about3-swiper img{
	width: 100%;
	cursor: pointer;
}
@media only screen and (max-width: 991px) {
	.about2 .about2-img,.about3 .about3-img {
	    width: 1000px;
	    margin-left: -500px;
	}
	.about2 .about2-txt,.about3 .about3-txt {
	    width: 100%;
	    font-size: 24px;
	    line-height: 35px;
	    position: relative;
	    top: 0;
	    left: 0;
	    margin: 100px 0px;
	}
	.about2 h2, .about3 h2 {
	    margin: 0 0 60px;
	}
}
@media only screen and (max-width: 750px) {
	.about2 .about2-img,.about3 .about3-img {
	    width: 500px;
	    margin-left: -250px;
	}
	.about2 .about2-txt,.about3 .about3-txt {
	    font-size: 14px;
	    line-height: 20px;
	    margin: 40px 0px;
	}
	.about2 h2, .about3 h2 {
	    margin: 0 0 20px;
	}
	.about2 .about2-txt .about2-swiper,.about3 .about3-txt .about3-swiper {
	    margin: 30px 0 0;
		height: 62px;
	}
}
@media only screen and (min-width: 992px) {
	.about2 .about2-img {
		width: 732px;
		margin-left: -650px;
	}
	.about3 .about3-img {
		width: 732px;
		margin-left: -82px;
	}
	.about2 .about2-txt {
		width: 360px;
	    top: 80px;
	    margin-left: 130px;
	}
	.about3 .about3-txt {
		width: 360px;
		top: 80px;
	}
	.about2 .about2-txt .about2-swiper,.about3 .about3-txt .about3-swiper {
	    margin: 50px 0 0;
		height: 68px;
	}
}
@media only screen and (min-width: 1300px) {
	.about2 .about2-img {
		width: 1080px;
		margin-left: -960px;
	}
	.about3 .about3-img {
		width: 1080px;
		margin-left: -120px;
	}
	.about2 .about2-txt {
		width: 420px;
	    top: 120px;
	    margin-left: 180px;
	}
	.about3 .about3-txt {
		width: 425px;
		top: 120px;
	}
	.about2 .about2-txt .about2-swiper,.about3 .about3-txt .about3-swiper {
		height: 80px;
	    margin: 90px 0 0;
	}
}
/*荣誉资质*/
.about4 {
	width: 100%;
	overflow: hidden;
	background-color: #f2f2f2;
	padding: 70px 0;
	position: relative;
}
.about4-menu {
	width: 306px;
	overflow: hidden;
	margin: 20px auto 50px;
	text-align: center;
}
.about4-menu a {
	display: block;
	width: 90px;
	height: 35px;
	line-height: 35px;
	overflow: hidden;
	border-radius: 5px;
	float: left;
	background-color: #FFFFFF;
	color: #666666;
	font-weight: bold;
	margin: 0 6px;
	cursor: pointer;
}
.about4-menu a.active {
	background-color: #e60012;
	color: #FFFFFF;
}
.about4 .about4-swiper {
	width: calc(100% - 50px);
	width: -moz-calc(100% - 50px);
	width: -webkit-calc(100% - 50px);
	height: 277px;
	margin: 0 auto;
	position: relative;
}
.about4 .about4-swiper li {
	width: 100%;
	height: 100%;
	display: none;
}
.about4 .about4-swiper li.active {
	display: block;
}
.about4 .about4-swiper li a {
	display: block;
	width: 100%;
	overflow: hidden;
	text-align: center;
	cursor: pointer;
}
.about4 .about4-swiper li a .about4-img {
	width: 100%;
	height: 212px;
	overflow: hidden;
	background-color: #FFFFFF;
	padding: 15px 25px;
}
.about4-img img {
	width: 100%;
	height: 100%;
	-o-object-fit: contain;
    object-fit: contain;
    transition: all 0.5s;
}
.about4 .about4-swiper li a p {
	width: 100%;
	height: 65px;
	line-height: 65px;
	font-size: 16px;
	color: #FFFFFF;
	overflow: hidden;
	background-color: #b5b5b5;
    transition: all 0.5s;
}
.about4 .about4-swiper li a:hover .about4-img img {
	transform: scale(1.1);
}
.about4 .about4-swiper li a:hover p {
	background-color: #e60012;
}
.about4-swiper .swiper-button-prev,.about4-swiper .swiper-container-rtl .swiper-button-next {
    left: -75px;
}
.about4-swiper .swiper-button-next,.about4-swiper .swiper-container-rtl .swiper-button-prev {
    right: -75px;
}
@media only screen and (max-width: 750px) {
	.about4 {
	    padding: 40px 0;
	}
	.about4-menu {
	    width: 270px;
	    margin: 20px auto 30px;
	}
	.about4-menu a {
	    width: 80px;
	    height: 30px;
	    line-height: 30px;
	    margin: 0 5px;
	}
	.about4 .about4-swiper {
	    width: 100%;
	    height: 175px;
	}
	.about4 .about4-swiper li a .about4-img {
		height: 140px;
		padding: 10px 20px;
	}
	.about4 .about4-swiper li a p {
		height: 35px;
		line-height: 35px;
		font-size: 14px;
	}
	.about4-swiper .swiper-button-prev,.about4-swiper .swiper-container-rtl .swiper-button-next {
	    left: -20px;
	}
	.about4-swiper .swiper-button-next,.about4-swiper .swiper-container-rtl .swiper-button-prev {
	    right: -20px;
	}
}
@media only screen and (min-width: 992px) {
	.about4 .about4-swiper {
	    width: calc(100% - 80px);
	    width: -moz-calc(100% - 80px);
	    width: -webkit-calc(100% - 80px);
	    height: 277px;
	}
	.about4-swiper .swiper-button-prev,.about4-swiper .swiper-container-rtl .swiper-button-next {
	    left: -60px;
	}
	.about4-swiper .swiper-button-next,.about4-swiper .swiper-container-rtl .swiper-button-prev {
	    right: -60px;
	}
}
@media only screen and (min-width: 1300px) {
	.about4 .about4-swiper {
	    width: calc(100% - 50px);
	    width: -moz-calc(100% - 50px);
	    width: -webkit-calc(100% - 50px);
	    height: 277px;
	}
	.about4-swiper .swiper-button-prev,.about4-swiper .swiper-container-rtl .swiper-button-next {
	    left: -75px;
	}
	.about4-swiper .swiper-button-next,.about4-swiper .swiper-container-rtl .swiper-button-prev {
	    right: -75px;
	}
}
/*宣传视频*/
.about5 {
	width: 100%;
	overflow: hidden;
	padding: 55px 0 70px;
	position: relative;
}
.about5 .about5-video {
	width: 893px;
	overflow: hidden;
	margin: 40px auto 0;
	position: relative;
}
.about5-video video {
	width: 100%;
	display: block;
	background-color: #000000;
}
.about5-video img {
	width: 100%;
	position: relative;
	z-index: 1;
}
@media only screen and (max-width: 991px) {
	.about5 .about5-video {
	    width: 100%;
	}
}
@media only screen and (max-width: 750px) {
	.about5 {
	    padding: 35px 0 40px;
	}
	.about5 .about5-video {
	    margin: 25px auto 0;
	}
}
.ap {
	position: absolute;
	top: -70px;
}