.product_banner{
	width: 100%;
	overflow: hidden;
}
.product_banner img{
	width: 100%;
}
.product_content{
	width: 100%;
	overflow: hidden;
	background-color: #fff;
}
.list_back{
	display: block;
	width: 155px;
	height: 45px;
	background-color: #dc252a;
	color: #fff !important;
	text-align: center;
	line-height: 45px;
	font-size: 14px;
	cursor: pointer;
	border-radius:5px;
	margin: 23px 0 27px;
}
.list_back img{
	height: 12px;
	margin-right: 20px;
}
.valve_details{
	width: 100%;
	overflow: hidden;
	border-top: 1px solid #e8e8e8;
	padding: 50px 0 45px;
}
.valve_img{
	width: 310px;
	overflow: hidden;
	border: 1px solid #e8e8e8;
	float: left;
}
.valve_img img{
	width: 100%;
}
.valve_information{
	width: calc(100% - 350px);
	overflow: hidden;
	float: right;
}
.valve_information h3{
	line-height: 45px;
	font-size: 24px;
	color: #393939;
	margin-bottom: 20px;
}
.information_menu{
	width: 100%;
	height: 30px;
	overflow: hidden;
	padding-left: 30px;
}
.information_menu li{
	float: left;
	width: 135px;
	height: 30px;
	text-align: center;
	cursor: pointer;
	line-height: 29px;
	border-radius: 5px 5px 0 0;
	border: 1px solid #e8e8e8;
	border-bottom: none;
}
.information_menu li.menu_now{
	background: linear-gradient(#fcfcfc, #eeeeee,#fcfcfc);;
}
.information_details{
	width: 100%;
	height: auto;
	border: 1px solid #e8e8e8;
	overflow: hidden;
	padding: 30px 25px;
	border-radius: 3px;
}
.information_details li{
	width: 100%;
	overflow: hidden;
	display: none;
	line-height: 25px;
}
.information_details li:first-of-type{
	display: block;
}
.information_details h4{
	font-size: 16px;
	color: #666;
	margin-bottom: 15px;
}
.information_download{
	width: 100%;
	overflow: hidden;
	position: relative;
	border-top: 1px solid #e8e8e8;
	border-bottom: 1px solid #e8e8e8;
}
.download_img{
	width: 40px;
	height: 50px;
	line-height: 50px;
	float: left;
	position: relative;
}
.download_img img{
	width: 40px;
	margin-top:-8px;
}
.download_text{
	width: calc(100% - 40px);
	height: 50px;
	float: right;
	font-size: 12px;
	color: #393939;
	line-height: 15px;
	padding-top: 10px;
}
.download_text h5{
	transform: scale(0.95);
	font-size: 12px;
}
.download_text p{
	transform: scale(0.95);
}
.download_but{
	width: 90px;
	height: 30px;
	position: absolute;
	right: 0;
	top: 10px;
	border-radius: 5px;
	text-align: center;
	line-height: 30px;
	background: linear-gradient(180deg, #2b6fe2, #133a89);
	color: #fff;
	cursor: pointer;
}
.download_but p{
	position: relative;
}
.download_but span{
	font-size: 25px;
	position: absolute;
	top: -1px;
}
.download_bottom{
	padding-top: 20px;
	width: 100%;
	overflow: hidden;
}
.download_bottom img{
	margin-top: 10px;
}
@media only screen and (max-width:767px ) {
	.valve_details>h3{
		display: block;
		font-size: 24px;
		text-align: center;
	}
	.valve_information>h3{
		display: none;
	}
	.valve_img{
		width: 100%;
		overflow: hidden;
		border: none;
		float: none;
		text-align: center;
		margin:20px 0;
	}
	.valve_img img{
		width: auto;
	}
	.valve_information{
		width: 100%;
		overflow: hidden;
		float: none;
	}
	.information_menu{
		width: 100%;
		height: 30px;
		overflow: hidden;
		padding-left: 0px;
	}
	.information_menu li{
		float: left;
		width: 50%;
		height: 30px;
		text-align: center;
		cursor: pointer;
		line-height: 29px;
		border-radius: 5px 5px 0 0;
		border: 1px solid #e8e8e8;
		border-bottom: none;
	}
}
@media only screen and (min-width:768px ) {
	.valve_details>h3{
		display: block;
		font-size: 24px;
		text-align: center;
	}
	.valve_information>h3{
		display: none;
	}
	.valve_img{
		width: 100%;
		overflow: hidden;
		border: none;
		float: none;
		text-align: center;
		margin:20px 0;
	}
	.valve_img img{
		width: auto;
	}
	.valve_information{
		width: 100%;
		overflow: hidden;
		float: none;
	}
}
@media only screen and (min-width:992px ) {
	.valve_details>h3{
		display: none;
	}
	.valve_information>h3{
		display: block;
	}
	.valve_img{
		width: 310px;
		overflow: hidden;
		border: 1px solid #e8e8e8;
		float: left;
	}
	.valve_img img{
		width: 100%;
	}
	.valve_information{
		width: calc(100% - 350px);
		overflow: hidden;
		float: right;
	}
}
@media only screen and (min-width:1200px ) {
	
}