.section{
	display:block;
	width: auto;
	height: auto;
	padding-top: 40px;
	padding-bottom: 40px;
	margin: auto;
	overflow: hidden;
}
.tb{
	margin: auto;
	max-width: 1200px;
}
.youshi_list{
	display:grid;
	grid-template-columns:calc(33.3% - (80px/3)) calc(33.3% - (80px/3)) calc(33.3% - (80px/3));
	column-gap:40px;
	row-gap:20px;
	width:auto;
	height:auto;
	max-width:1200px;
	margin:auto;
	margin-top:80px;
	margin-bottom:80px;
}
@media (max-width:480px){
	.youshi_list{
		grid-template-columns:auto;
		padding:10px;
		margin:auto;
	}
}
.youshi_ico{
	font-size:3rem;
}
.youshi_name{
	font-size:1.2rem;
	font-family:Georgia, "Times New Roman", Times, serif;
	text-transform:uppercase;
	margin-top:20px;
}
.youshi_miaoshu{
	margin-top:20px;
	margin-bottom:20px;
}
#quandi_about{
	display:block;
	position:relative;
	background-color:#000;
}
.back{
	height:auto;
	background-size:cover;
	padding:50px;
}
@media (max-width:480px){
	.back{padding:10px;}
}
.about_tb{
	display:flex;
	display:-webkit-flex;
	flex-wrap:wrap;
	column-gap:40px;
	row-gap:20px;
	max-width:1000px;
	width:auto;
	height:auto;
	margin:auto;
	overflow:hidden;
	color:#fff;
	padding:50px;
	background-color:rgba(0,0,0,0.6);
}
@media (max-width:480px){
	.about_tb{padding:10px;}
}
.about_title{
	width:100%;
	text-align:center;
	font-size:2rem;
	text-transform:uppercase;
	font-family:Georgia, "Times New Roman", Times, serif;
	color:#fff;
}
.about_content{
	width:50%;
	line-height:1.8;
}
.about_pic{
	width:calc(50% - 40px);
	height:auto;
	margin:auto;
}
@media (max-width:767px){
	.about_content{width:100%;}
	.about_pic{width:100%;}
}
.news_tb{
	display:block;
	width:auto;
	height:auto;
	max-width:1000px;
	margin:auto;
	margin-top:80px;
	margin-bottom:80px;
}
.news_title{
	font-size:2rem;
	font-family:Georgia, "Times New Roman", Times, serif;
	text-align:center;
}
.news_list{
	display:grid;
	grid-template-columns:calc(50% - (40px/2) ) calc(50% - (40px/2) );
	align-items:center;
	column-gap:40px;
	row-gap:20px;
	width:auto;
	margin-top:40px;
}
@media (max-width:767px){
	.news_list{
		grid-template-columns:auto;
	}
}
.news_tb{
	display:grid;
	grid-template-columns:30% auto;
	align-items:center;
	column-gap:30px;
	width:auto;
	height:auto;
	padding:10px;
}
.news_left{
	display:block;
	width:150px;
	height:150px;
	border:1px solid #ddd;
	background-size:cover;
	background-position:center;
	background-repeat:no-repeat;
	overflow:hidden;
	border-radius:50%;
}
@media (max-width:480px){
	.news_left{width:100px;height:100px;}
}
a.news_name{
	font-size:1.2rem;
	font-family:Georgia, "Times New Roman", Times, serif;
	line-height:1.5;
	text-overflow:ellipsis;
	display:-webkit-box;
	-webkit-box-orient:vertical;
	-webkit-line-clamp:2;
	overflow:hidden;
}
.news_miaoshu{
	line-height:1.5;
	margin-top:10px;
	text-overflow:ellipsis;
	display:-webkit-box;
	-webkit-box-orient:vertical;
	-webkit-line-clamp:3;
	color:#666;
	overflow:hidden;
}
.product_back{
	display:block;
	width:auto;
	height:auto;
	background-color:#000;
	background-repeat:no-repeat;
	background-size:cover;
	overflow:hidden;
	padding-top:50px;
	padding-bottom:50px;
}
#quandi_product{
	display:block;
	width:auto;
	height:auto;
	max-width:1200px;
	margin:auto;
}
.product_title{
	font-size:2rem;
	font-family:Georgia, "Times New Roman", Times, serif;
	text-align:center;
	color:#fff;
}
.product_list{
	display:grid;
	grid-template-columns:calc(33.3% - (40px/3)) calc(33.3% - (40px/3)) calc(33.3% - (40px/3));
	align-items:center;
	column-gap:20px;
	row-gap:20px;
	width:auto;
	margin-top:40px;
}
@media (max-width:767px){
	.product_list{
		grid-template-columns:calc(50% - (20px/2)) calc(50% - (20px/2));
	}
}
a.product_tb{
	display:block;
	width:auto;
	height:auto;
	background-color:#fff;
	padding:20px;
	text-align:center;
}
.product_pic{
	padding-bottom:100%;
	position:relative;
	overflow:hidden;
}
.case_list{
	display:block;
	width:auto;
	height:auto;
	max-width:1200px;
	margin:auto;
	white-space:nowrap;
	overflow:hidden;
	margin-top:50px;
	margin-bottom:50px;
}
.case_tb{
	width:12.5%;
	height:auto;
	display:inline-block;
	margin-right:20px;
	border:1px solid #ddd;
}
@media (max-width:480px){
	.case_tb{width:20%;}
}
a.case_pic{
	display:block;
	padding-bottom:50%;
	position:relative;
}