@charset "utf-8";
#quan_head{
	position: fixed;
}
/*选择我们的理由*/
.section{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	background-repeat: no-repeat;
	background-size: cover;
}
.tb{
	width:auto;
	max-width:86%;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	margin-top:80px;
	margin-bottom:80px;
}
@media (max-width:767px){
	.tb{
		margin-top:40px;
		margin-bottom:40px;
	}
}
.thead{
	text-align: center;
	line-height: 1.5;
}
.title{
	font-size:3rem;
	font-weight: bold;
}
@media (max-width:480px){
	.title{font-size: 2rem;}
}
.ti{
	font-weight: bold;
	font-size: 1.4rem;
}
.miaoshu{
	font-size: 1.2rem;
}

.youshi_list{
	width:auto;
	height:auto;
	overflow:hidden;
	display:grid;
	grid-template-columns:calc(50% - 40px/2) calc(50% - 40px/2) ;
	column-gap: 40px;
	row-gap: 40px;
	margin:auto;
	justify-content:center;
	margin-top: 60px;
}
@media (max-width:767px){.youshi_list{grid-template-columns:auto;row-gap:20px;}}
.youshi_tb{
	width:auto;
	height:auto;
	display:grid;
	grid-template-columns:20% auto;
	align-items: center;
	padding: 20px;
	border: 1px solid #ddd;
	overflow: hidden;
}
.youshi_tb:hover{
	background-color: #c00;
	color: #fff!important;
}
.youshi_left{
	display: flex;
	display: -webkit-flex;
	justify-content: center;
	align-items: center;
	overflow: hidden;
}
.youshi_index{
	color: #c00;
	font-family: 'Times New Roman', Times, serif;
	font-size: 4rem;
	font-weight: bold;
	line-height: 1.5;
}
.youshi_tb:hover .youshi_index{color:#fff;}
.youshi_name{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	font-size: 1.4rem;
}
.youshi_miaoshu{
	width:auto;
	height:auto;
	padding:5px;
	margin:auto;
	display:block;
	overflow:hidden;
}
.product_back{
	background-color:#000;
}

.product_thead{
	color:#fff;
}

.product_list{
	width:auto;
	height:auto;
	overflow:hidden;
	display:grid;
	grid-template-columns:calc(40% - (40px/3)) calc(30% - (40px/3)) calc(30% - (40px/3));
	column-gap:20px;
	row-gap:20px;
	margin:auto;
	margin-top:60px;
}
@media (max-width:480px){
	.product_list{
		grid-template-columns:calc(50% - (10px/2)) auto;
		column-gap:10px;
		row-gap:10px;
	}
}
.product_list>div{height:300px;}
@media (max-width:1000px){.product_list>div{height:200px;}}
.product_list>div:first-child{
	grid-row-start:1;
	grid-row-end:3;
	height:100%;
}
@media (max-width:480px){
	.product_list>div:first-child{grid-column-start:1;grid-column-end:3;height:300px;}
}
a.product_tb{
	width:auto;
	height:auto;
	padding-bottom: 100%;
	overflow:hidden;
	display:block;
	text-align:center;
	box-sizing:border-box;
	position:relative;
	background-size:cover;
	transition:all 0.4s;
}
a.product_tb:first-child{
	grid-row-start: 1;
	grid-row-end:3;
}
.product_name{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	text-align:center;
	font-size:1rem;
	position:absolute;
	left:0px;
	right:0px;
	bottom:0px;
	background-color:rgba(0,0,0,0.8);
	color:#fff;
	padding:10px;
}

.product_pic{
	width:auto;
	height:100%;
	overflow:hidden;
	margin:auto;
	display:block;
	position:relative;
}
@media (max-width:1000px){.product_pic{height:200px;}}
@media (max-width:480px){.product_pic{height:160px;}}

.new_list{
	width:auto;
	height:auto;
	display:grid;
	grid-template-columns:calc(25% - (60px/4)) calc(25% - (60px/4)) calc(25% - (60px/4)) calc(25% - (60px/4));
	column-gap:20px;
	row-gap:20px;
	margin:auto;
	margin-top: 60px;
}
@media (max-width:767px){.new_list{grid-template-columns:calc(50% - (20px/2)) calc(50% - (20px/2));}}
a.new_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
}
.new_pic{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	position:relative;
	background-size: cover;
	padding-bottom: 75%;
	background-color: #f5f5f5;
}

.new_name{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	margin:auto;
	text-align:center;
	font-size:1rem;
	padding:10px;
}
a.new_tb:hover{
	transition:all 0.4s;
	box-shadow:0px 0px 20px 0px #ccc;
}
.new_tb:hover .new_more{
	width:100%;
	height:100%;
	transition:all 0.4s;
}

.case_list{
	width:auto;
	height:auto;
	overflow:hidden;
	display:block;
	margin:auto;
	white-space:nowrap;
	margin-top: 60px;
}
.case_item{
	vertical-align: top;
	display: inline-block;
	width:25%;
	margin-right:20px;
}
@media (max-width:480px){
	.case_item{
		width:50%;
		margin-right:10px;
	}
}
a.case_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	position:relative;
	box-sizing:border-box;
	text-align: center;
	border: 1px solid #ddd;
	padding: 10px;
}
.case_pic{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	position:relative;
	padding-bottom: 125%;
	
}

.case_name{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:block;
	margin:auto;
	text-align:center;
	font-size:1rem;
	margin-top:10px;
}

.about_news{
	width:auto;
	max-width:86%;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:grid;
	grid-template-columns:auto auto;
	align-items:start;
	margin:auto;
	column-gap:40px;
	row-gap:20px;
	margin-top:80px;
	margin-bottom:80px;
}
@media (max-width:767px){.about_news{grid-template-columns:auto;}}
/*关于我们*/
.about_item{
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
}

.about_content{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	margin-top:20px;
}

.about_content * {max-width:100%;height:auto;}

.news_list{
	display:block;
	overflow:hidden;
	margin:auto;
	width:auto;
	height:auto;
	margin-top:20px;
}
.news_tb{
	width:auto;
	height:auto;
	overflow:hidden;
	margin:auto;
	display:grid;
	grid-template-columns: 80px auto;
	padding-bottom:10px;
}
.news_left{
	width:60px;
	height:100%;
	background-color:;
	display:block;
	overflow:hidden;
	background-color:#c00;
	font-family:Arial, Helvetica, sans-serif;
	color:#fff;
	text-align:center;
	font-size:12px;
	float:left;
	margin-right:10px;
}
.news_date{
	font-size:20px;
	text-align:center;
	margin:5px;
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
	margin-bottom:0px;
}
.news_year{
	font-size:1rem;
	text-align:center;
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
}
.news_right{
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
}
a.news_name{
	display:block;
	overflow:hidden;
	width:auto;
	height:auto;
	margin:auto;
	text-align:left;
	font-size:1rem;
	font-weight:bold;
}
.news_miaoshu{
	display:-webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow:hidden;
	width:auto;
	height:auto;
	margin:auto;
	font-size:0.8rem;
	color:#666;
	text-align:left;
	line-height:1.5;
	overflow: hidden;
	text-overflow: ellipsis;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
}