.main {
	max-width: 640px;
	min-width: 320px;
	margin: 0 auto;
}
.index_bg {
	background: url(http://pic.huiyiguanjia.com/File/190812/FxBPjHDcdw.jpg) no-repeat top center;
	position: relative;
	background-size: cover;
	height: 100vh;
	overflow: auto;
}
.index_bg1{
	background: url(http://pic.huiyiguanjia.com/File/190812/FxBPjHDcdw.jpg) no-repeat top center!important;
	position: relative;
	background-size: cover;
	height: 100vh;
	overflow: auto;
}
.index_bg2 {
    position: absolute;
    top: 0;
    height: 100%;
    background: rgba(60, 60, 60, 0.855);
    padding-top: 22vh;
	display: none;
}
.fl{
	float: left;
}
.fr{
	float: right;
}
form .form-group{
	width:86%;
	margin:0 auto;
	height: 45px;
	background: rgba(0,0,0,.7);
	margin-bottom: 2vh;
	border-radius: 3px;
	clear: both;
	color: #fff;
	padding:0 10px;
	line-height: 45px;
	font-size:14px;
}
form .form-group .fr{
	width: 82%;
}
.form-group input,.form-group select{
	width: 100%;
    height: 40px;
    border-style: none;
    background: none;
    /* border: 1px solid #fff; */
	color: #fff;
	font-size:14px ;
}
.form-group select{
	color: #dadada;
}
#dengluButton{
	background: #e11120;
	width: 86%;
	height: 45px;
	display: block;
	margin: 0 auto;
	color: #fff;
	text-align: center;
	line-height: 45px;
	font-size:16px;
	border-radius: 3px;
	margin:5vh auto 3vh auto;
}
::-webkit-input-placeholder { /* WebKit browsers */
  color: #dadada;
  font-size: 14px;
}

@media screen and (max-height:620px){
 	.index_bg2 {
 	    padding-top: 14vh;
 	}
}