.product_content{
	width: 100%;
	overflow: hidden;
	padding: 50px 0;
}
.product_nav{
	width: 260px;
	overflow: hidden;
	float: left;
	border-top: 2px solid #c7000c;
}
.product_nav .productNav{
	height: 40px;
	line-height: 38px;
	border-bottom: 2px solid #c7000c;
	padding-left: 10px;
	position: relative;
}
.product_nav a{
	color: #333333;
}
.productNav img{
	width: 10px;
	position: absolute;
	right: 10px;
	top: 17px;
	display: none;
}
.product_nav .productNav:hover{
	font-weight: bold;
	background-color: #faf2f3;
}
.product_nav .productNav:hover a{
	color: #c7000c;
}
.product_nav .list_now{
	font-weight: bold;
	background-color: #faf2f3;
}
.product_nav .list_now a{
	color: #c7000c;
}
.product_list{
	width: -moz-calc(100% - 280px);
	width: -webkit-calc(100% - 280px);
	width: calc(100% - 280px);
	overflow: hidden;
	float: right;
}
.product_list .valve_list{
	width: 100%;
	overflow: hidden;
	margin-bottom: 20px;
}
.valve_list a{
	display: block;
	width: 100%;
	overflow: hidden;
	background-color: #ececec;
	margin-bottom: 20px;
	padding: 15px;
	color: #747474;
}
.list_img{
	width: 170px;
	overflow: hidden;
	background-color: #FFFFFF;
	float: left;
	margin-right: 20px;
}
.list_img img{
	width: 100%;
	transition: all 0.5s;
}
.list_text {
	height: 100%;
	overflow: hidden;
	line-height: 20px;
	position: relative;
	width: -moz-calc(100% - 195px);
	width: -webkit-calc(100% - 195px);
	width: calc(100% - 195px);
}
.list_text h4 {
	width: 100%;
	height: 45px;
	color: #4a4a4a;
	font-size: 20px;
	overflow: hidden;
	margin: 0 0 10px;
	line-height: 45px;
	white-space: nowrap;
	text-overflow: ellipsis;
	border-bottom: 1px solid #CCCCCC;
}
.list_text p {
	height: 60px;
	overflow: hidden;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	text-overflow: ellipsis;
	-webkit-box-orient: vertical;
}
.list_text span {
	width: 159px;
	height: 29px;
	float: right;
	display: block;
	color: #333333;
	overflow: hidden;
	margin-top: 15px;
	line-height: 25px;
	border-radius: 5px;
	text-align: center;
	border: 2px solid #c7000c;
}
.valve_list a:hover {
	color: #FFFFFF;
	background-color: #c7000c;
}
.valve_list a:hover img {
	transform: scale(1.1);
}
.valve_list a:hover h4 {
	color: #FFFFFF;
}
.valve_list a:hover span {
	color: #FFFFFF;
	border-color:#FFFFFF;
}
.product_nav.product_Fixed {
	top: 125px;
	position: fixed;
}
@media only screen and (max-width:767px ) {
	.product_nav.product_Fixed{
		position: relative;
		top: 0;
	}
	.product_content{
		padding: 40px 0;
	}
	.product_nav{
		width: 100%;
		margin-bottom: 20px;
	}
	.product_nav .productNav{
		display: none;
	}
	.product_nav .list_now{
		display: block;
	}
	.product_nav .list_now img{
		display: inline-block;
	}
	.product_nav:hover .productNav{
		display: block;
	}
	.product_list{
		width: 100%;
	}
	.valve_list {
		margin-bottom: 15px;
	}
	.valve_list a{
		padding: 10px;
		margin-bottom: 15px;
	}
	.list_img{
		width: 130px;
		height: 160px;
		line-height: 160px;
		margin-right: 10px;
	}
	.list_text{
		width: -moz-calc(100% - 140px);
		width: -webkit-calc(100% - 140px);
		width: calc(100% - 140px);
	}
	.list_text h4{
		font-size: 16px;
	}
	.list_text span{
		width: 120px;
	}
}
/*产品详情*/
.product_text{
	width: 100%;
	overflow: hidden;
}
.product_text .details_img{
	width: 350px;
	margin: 30px 30px 30px 0;
	float: left;
}
.product_text img{
	width: 100%;
}
.details_text{
	width: -moz-calc(100% - 380px);
	width: -webkit-calc(100% - 380px);
	width: calc(100% - 380px);
	overflow: hidden;
	float: right;
}
.product_details .details{
	width: 100%;
	overflow: hidden;
	border-top: 1px solid #e7e7e9;
	margin: 30px 0 0;
	padding: 20px 0 0;
}
.product_list h2{
	font-size: 26px;
	font-weight: bold;
	margin-bottom: 20px;
}
.product_details{
	width: 100%;
	overflow: hidden;
	font-size: 14px;
	color: #626262;
	line-height: 20px;
}
.product_details p{
	margin-bottom: 10px;
}
.product_details h4{
	font-size: 18px;
	color: #c7000c;
	margin:25px 0 10px;
}
.product_download{
	width: 100%;
	overflow: hidden;
	border-top: 1px solid #e7e7e9;
	margin: 40px 0 20px;
}
.product_download h3{
	font-weight: bold;
	line-height: 50px;
	font-size: 20px;
	margin: 10px 0 20px;
}
.download-box{
	width: 230px;
	text-align: center;
	color: #626262;
}
.download-box img{
	margin-bottom: 15px;
}
@media only screen and (max-width:991px ) {
	.product_text .details_img{
		width: 100%;
		float: none;
	}
	.details_text{
		width: 100%;
		float: none;
	}
	.product_details{
		font-size: 12px;
	}
	.product_download {
	    border-top: 1px solid #e7e7e9;
	    margin: 20px 0 20px;
	}
}