@media only screen and (min-width: 992px) {
	.header_top .header_logo img:nth-of-type(1) {
		display: none;
	}
	.header_top .header_logo img:nth-of-type(2) {
		display: block;
	}
	.header_search img:nth-of-type(1) {
		display: none;
	}
	.header_search img:nth-of-type(2) {
		display: block;
	}
	.header_top .header_right a {
		color: #000000;
	}
	.header_search {
		border-left: 1px solid #000000;
	}
	header .header_top {
		border-bottom: 1px solid #999999;
	}
	.header_menu li>a {
		color: #333333;
	}
	.header_menu li>a span {
		background-color: #000000;
	}
	.header_content .header_twoBg,.header_bottom .header_twoBg {
		background-color: rgba(0,0,0,0.18);
	}
}
/*封头详情*/
.head_content {
	width: 100%;
	overflow: hidden;
	background-color: #f7f7f7;
	padding: 185px 0 105px;
}
.head_content .head_return {
	display: block;
	width: 75px;
	height: 25px;
	background-color: #e60012;
	text-align: center;
	line-height: 25px;
	font-size: 12px;
	color: #FFFFFF;
}
.head_content .head_box {
	width: 100%;
	overflow: hidden;
	margin: 40px 0 0;
}
.head_box .head_img {
	width: 595px;
	height: 595px;
	line-height: 590px;
	overflow: hidden;
	background-color: #ffffff;
	border: 1px solid #dcdcdc;
	float: left;
}
.head_img img {
	width: 100%;
}
.head_box .head_txt {
	width: 735px;
	overflow: hidden;
	margin: 0 0 0 65px;
	float: left;
	color: #000000;
	font-size: 18px;
}
.head_txt h3 {
	font-size: 30px;
	line-height: 90px;
	border-bottom: 1px solid #d2d2d2;
	color: #000000;
	margin: 0 0 30px;
}
.head_txt .headTxt_img {
	width: 100%;
	overflow: hidden;
	margin: 70px 0 0;
	text-align: center;
	font-size: 14px;
}
.headTxt_img img {
	max-width: 100%;
}
@media only screen and (max-width: 991px) {
	.head_box .head_txt {
	    width: 100%;
	    margin: 0;
	    float: none;
	}
}
@media only screen and (max-width: 767px) {
	.head_content {
	    padding: 85px 0 55px;
	}
	.head_content .head_box {
	    margin: 30px 0 0;
	}
	.head_box .head_img {
	    width: 100%;
	    height: 335px;
	    line-height: 330px;
	    float: none;
	}
	.head_txt h3 {
	    font-size: 24px;
	    line-height: 60px;
	    margin: 0 0 15px;
	}
	.head_txt .headTxt_img {
	    margin: 30px 0 0;
	}
}
@media only screen and (min-width: 992px) {
	.head_box .head_img {
		width: 495px;
		height: 495px;
		line-height: 490px;
	}
	.head_box .head_txt {
		width: calc(100% - 560px);
		width: -moz-calc(100% - 560px);
		width: -webkit-calc(100% - 560px);
	}
}
@media only screen and (min-width: 1200px) {
	.head_box .head_img {
		width: 595px;
		height: 595px;
		line-height: 590px;
	}
	.head_box .head_txt {
		width: calc(100% - 660px);
		width: -moz-calc(100% - 660px);
		width: -webkit-calc(100% - 660px);
	}
}
@media only screen and (min-width: 1600px) {
	.head_box .head_txt {
		width: 735px;
	}
}