header:before {
	content: '';
	display: block;
	width: 100%;
	height: 60px;
	overflow: hidden;
	background-color: rgba(255,255,255,0.75);
	position: absolute;
	left: 0px;
	top: 0px;
}
.quality1 {
	width: 100%;
	padding: 90px 0 70px;
	overflow: hidden;
}
.quality1 .box1 {
	height: 605px;
}
@media only screen and (max-width: 991px) {
	header:before {
		height: 40px;
	}
	.quality1 {
	    padding: 90px 0 20px;
	}
	.quality1 .box1 {
		height: auto;
		margin: 0 0 70px;
	}
}
@media only screen and (max-width: 750px) {
	header:before {
		height: 25px;
	}
	.quality1 {
	    padding: 40px 0 10px;
	}
	.quality1 .box1 {
		height: auto;
		margin: 0 0 30px;
	}
}
@media only screen and (min-width: 992px) {
	header:before {
		height: 45px;
	}
	.quality1 {
		padding: 65px 0 50px;
	}
	.quality1 .box1 {
		height: 480px;
	}
	.quality1 .box1:first-of-type {
		margin: 0 0 70px;
	}
	.quality1 .box1:nth-of-type(2) .box1-txt p {
		margin-right: 10px;
	}
}
@media only screen and (min-width: 1400px) {
	header:before {
		height: 60px;
	}
	.quality1 {
		padding: 90px 0 70px;
	}
	.quality1 .box1 {
		height: 605px;
	}
	.quality1 .box1:first-of-type {
		margin: 0 0 100px;
	}
	.quality1 .box1:nth-of-type(2) .box1-txt p {
		margin-right: 30px;
	}
}
/*技术服务*/
.quality2 {
	width: 100%;
	padding: 90px 0 0;
	overflow: hidden;
	position: relative;
}
.quality2>img {
	width: 1920px;
	position: absolute;
	top: 0px;
	left: 50%;
	margin-left: -960px;
}
.quality2-txt {
	width: 530px;
	padding: 80px 65px 57px;
	overflow: hidden;
	background-color: rgba(0,77,161,0.7);
	position: relative;
	left: 50%;
	margin-left: -600px;
	z-index: 1;
}
.quality2-txt h2 {
	color: #FFFFFF;
}
.quality2-txt ul {
	width: 100%;
	border-bottom: 1px solid #80a9d3;
	overflow: hidden;
	margin: 45px 0 0;
}
.quality2-txt li {
	width: 100%;
	padding: 36px 21px;
	color: #FFFFFF;
	border-top: 1px solid #80a9d3;
	overflow: hidden;
}
.quality2-txt img {
	display: block;
	float: left;
}
.quality2-txt p {
	font-size: 18px;
	line-height: 25px;
	margin: 10px 0 10px 40px;
	float: left;
}
@media only screen and (max-width: 991px) {
	.quality2 {
		padding: 0;
	}
	.quality2>img {
		width: 992px;
		position: relative;
		margin-left: -496px;
	}
	.quality2-txt {
		width: 100%;
		padding: 80px 65px 57px;
		left: 0px;
		margin-left: 0;
		background-color: rgba(0,77,161,1);
	}
}
@media only screen and (max-width: 750px) {
	.quality2>img {
		width: 750px;
		left: 0;
		margin-left: 0;
		float: right;
	}
	.quality2-txt {
		padding: 40px 35px 30px;
	}
	.quality2-txt ul {
		margin: 25px 0 0;
	}
	.quality2-txt li {
		padding: 20px 10px;
	}
	.quality2-txt img {
		width: 50px;
	}
	.quality2-txt p {
		font-size: 14px;
		line-height: 20px;
		margin: 5px 20px;
	}
}
@media only screen and (min-width: 992px) {
	.quality2 {
		padding: 60px 0 0;
	}
	.quality2>img {
		width: 1470px;
		margin-left: -735px;
	}
	.quality2-txt {
		width: 530px;
		padding: 50px 45px 40px;
		margin-left: -480px;
	}
	.quality2-txt ul {
		margin: 45px 0 0;
	}
	.quality2-txt li {
		padding: 25px 15px;
	}
	.quality2-txt img {
		width: 60px;
	}
	.quality2-txt p {
		font-size: 16px;
		line-height: 25px;
		margin: 5px 0 5px 30px;
	}
}
@media only screen and (min-width: 1400px) {
	.quality2 {
		padding: 90px 0 0;
	}
	.quality2>img {
		width: 1920px;
		margin-left: -960px;
	}
	.quality2-txt {
		width: 530px;
		padding: 80px 65px 57px;
		margin-left: -600px;
	}
	.quality2-txt ul {
		margin: 45px 0 0;
	}
	.quality2-txt li {
		padding: 36px 21px;
	}
	.quality2-txt img {
		width: 70px;
	}
	.quality2-txt p {
		font-size: 18px;
		line-height: 25px;
		margin: 10px 0 10px 40px;
	}
}
/*产品现场*/
.quality3 {
	width: 100%;
	margin: 60px 0 30px;
	overflow: hidden;
	text-align: center;
}
.quality3 ul {
	width: 100%;
	margin: 50px 0 0;
	overflow: hidden;
}
.quality3 li {
	float: left;
	cursor: pointer;
	overflow: hidden;
	position: relative;
	width: -moz-calc(33.33% - 20px);
	width: -webkit-calc(33.33% - 20px);
	width: calc(33.33% - 20px);
}
.quality3 li .list-img {
	width: 100%;
	overflow: hidden;
	position: relative;
}
.quality3 li .list-img::before {
	top: 0px;
	left: 0px;
	z-index: 1;
	content: '';
	width: 100%;
	height: 100%;
	display: block;
	overflow: hidden;
	position: absolute;
	border: 2px solid transparent;
}
.quality3 li .list-img img {
	width: 100%;
	transition: all 0.5s;
}
.quality3 li p {
	width: 100%;
	font-size: 16px;
	margin: 10px 0 0;
	overflow: hidden;
	line-height: 20px;
	white-space: nowrap;
    text-overflow: ellipsis;
}
.quality3 li:hover .list-img img {
	transform: scale(1.1);
}
.quality3 li:hover .list-img::before {
	border-color: #004da1;
}
@media only screen and (max-width: 991px) {
	.quality3 {
		margin: 80px 0 40px;
	}
	.quality3 ul {
		margin: 60px 0 0;
	}
	.quality3 li {
		width: -moz-calc(50% - 20px);
		width: -webkit-calc(50% - 20px);
		width: calc(50% - 20px);
	}
	.quality3 li:nth-of-type(2n+1) {
		margin: 0 40px 40px 0;
	}
	.quality3 li:nth-of-type(2n) {
		margin: 0 0 40px;
	}
}
@media only screen and (max-width: 750px) {
	.quality3 {
		margin: 40px 0 20px;
	}
	.quality3 ul {
		margin: 30px 0 0;
	}
	.quality3 li {
		width: -moz-calc(50% - 7px);
		width: -webkit-calc(50% - 7px);
		width: calc(50% - 7px);
	}
	.quality3 li:nth-of-type(2n+1) {
		margin: 0 14px 20px 0;
	}
	.quality3 li:nth-of-type(2n) {
		margin: 0 0 20px;
	}
	.quality3 li p {
		margin: 5px 0 0;
		font-size: 12px;
		line-height: 20px;
	}
}
@media only screen and (min-width: 992px) {
	.quality3 {
		margin: 50px 0 20px;
	}
	.quality3 ul {
		margin: 40px 0 0;
	}
	.quality3 li:nth-of-type(3n+1),.quality3 li:nth-of-type(3n+2) {
		margin: 0 30px 40px 0;
	}
	.quality3 li:nth-of-type(3n) {
		margin: 0 0 40px;
	}
}
@media only screen and (min-width: 1400px) {
	.quality3 {
		margin: 60px 0 30px;
	}
	.quality3 ul {
		margin: 50px 0 0;
	}
	.quality3 li:nth-of-type(3n+1),.quality3 li:nth-of-type(3n+2) {
		margin: 0 30px 50px 0;
	}
	.quality3 li:nth-of-type(3n) {
		margin: 0 0 50px;
	}
}