.head_white{
	background: transparent;
	box-shadow:none;
}
.content_wrap{
	background-size: cover;
	margin-top: 0;
	padding: 480px 0 190px 0;
	color: #fff;
	text-align: center;
}
.content_wrap h2{
	font-size: 33px;
}
.content_wrap h4{
	font-size: 17px;
    margin-top: 32px;
}
.head_wrap .nav_logo1{
	display: none;
}
.head_white .nav_logo2{
	display: none;
}
.head_white .nav_logo1{
	display: inline-block;
}
.head_white .head_left_t{
	color: #fff;
	font-size: 20px;
}
.head_white .head_right li a,.head_white .head_right li{
	color: #1781d2;
	font-size: 20px;
}
.head_white .head_right li .active,.head_white .head_right li a:hover{
	color: #fff;
	font-size: 20px;
}
.it_field{
	font-size: 0;
}
.field_wrap{
	display: inline-block;
	width: 25%;
	text-align: center;
	margin-bottom: 50px;
	padding: 0 30px;
    box-sizing: border-box;
    vertical-align: top;
}
.field_title{
	font-size: 17px;
	font-weight: bold;
	color: #5E6569;
	margin: 20px 0 15px 0;
}
.field_dis{
	font-size: 15px;
	color: #9B9EA0;
}
.it_case .index_info .title{
	padding-top:0px;
}
.case_wrap{
	font-size: 0;
	margin-bottom: 25px;
}
.case_content{
	display: inline-block;
	width: 25%;
	margin-bottom: 20px;
	padding: 0 15px;
    box-sizing: border-box;
    vertical-align: top;
}
.case_title{
	font-size: 16px;
	color: #5E6569;
	margin: 10px 0 10px 0;
}
.case_dis{
	font-size: 14px;
	color: #9B9EA0;
}
.process_img{
	margin-bottom: 80px;
}