.course-class-infos {
position: relative;
    background: #666;
	top:50px;
	z-index: 10;
}           
.info-bg ,.cover-img-wrap{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
	z-index:-10;
}       
.cover-img-wrap {
    z-index: -1;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
	background-image: url(../images/app_banner.jpg);
}

.banner-outer {
	height: 562px;
	width: 100%;
	background-image: url(../images/app_banner.jpg);
	background-repeat:no-repeat;
	background-size:contain;
	padding-top: 1px
}

.course-class-infos .banner-inner {
	width: 960px;
	margin: 0 auto;
	color: #fff;
	position:absolute;
	top:160px;
	left:0;
	right:0;
	
}

.banner-outer .banner-inner .download-outer {
	width: 263px;
	height: 444px;
	background-color: #fff;
	position: absolute;
	right: 53px;
	box-sizing: border-box;
	text-align: center;
	top: -71px;
	padding-top: 14px
}

.banner-outer .banner-inner .download-outer img {
	width: 153px;
	height: 153px;
	margin-top: 23px
}

.banner-outer .banner-inner .download-outer .desc-text {
	font-size: 14px;
	color: #7b8390;
	text-align: center;
	margin-top: 13px
}

.banner-outer .banner-inner .download-outer a.btn {
	height: 56px;
	border-radius: 30px;
	background-color: #09aeb0;
	width: 211px;
	font-size: 20px;
	color: #fff;
	line-height: 56px;
	text-align: center;
	box-sizing: border-box;
	display: inline-block;
	margin-top: 10px
}

.banner-outer .banner-inner .download-outer a.btn:hover {
	background-color: #039d9f
}

.banner-outer .banner-inner .download-outer a.btn i {
	display: inline-block;
	width: 29px;
	height: 33px;
	vertical-align: middle;
	margin-right: 10px;
	background-image: url(../images/app-sprite-32aa760a10.png)
}

.banner-outer .banner-inner .download-outer a.btn i.apple {
	background-position: -6px -3px
}

.banner-outer .banner-inner .download-outer a.btn i.android {
	background-position: -47px -4px
}

.banner-outer .banner-inner h1 {
	font-size: 50px;
	font-weight: 400;
	margin: 0
}

.banner-outer .banner-inner .text {
	font-size: 18px;
	margin-top: 25px
}

.banner-outer .banner-inner .buttons {
	margin-top: 50px
}

.banner-outer .banner-inner a {
	display: inline-block;
	width: 115px;
	height: 45px;
	line-height: 45px;
	background-color: #fff;
	border: 1px solid #fff;
	border-radius: 2px;
	text-decoration: none;
	text-align: center;
	color: #09aeb0
}

.detail-info .ul-outer:after,.detail-info:after {
	content: " ";
	display: block;
	clear: both;
	visibility: hidden
}

.banner-outer .banner-inner a:hover {
	background-color: rgba(255,255,255,.85)
}

.banner-outer .banner-inner a:last-child {
	background-color: transparent;
	color: #fff;
	margin-left: 10px
}

.banner-outer .banner-inner a:last-child:hover {
	background-color: rgba(255,255,255,.3)
}

.detail-item {
	min-height: 10px;
	padding: 90px 0 90
}

.detail-item.gray {
	background-color: #f9f9fb
}

.detail-item h2 {
	font-size: 34px;
	font-weight: 400;
	text-align: center
}

.detail-info-app {
	width: 890px;
	margin: 165px auto auto;
	transition: width 1s ease-in-out
}

.detail-info-app.expand {
	width: 1020px
}

.detail-info-app:first-of-type {
	margin-top: 80px;
	margin-bottom:80px;
}

.detail-info-app .image-outer {
	width: 100%;
	height: 440px;
	background-image: url(../images/app-sprite-32aa760a10.png);
	background-position: 0 -46px;
	background-repeat: no-repeat
}

.detail-info-app .image-outer.second {
	position: relative;
	height: 364px;
	width: 556px;
	margin-left: 0;
	background-position: 0 -403px
}

.detail-info-app .image-outer.third {
	background-position: 417px -774px;
	height: 365px
}

.detail-info-app .image-outer.forth {
	background-position: 8px -1152px;
	height: 455px
}

.detail-info-app .image-outer.fifth {
	height: 418px;
	background-position: 414px -1610px
}

.detail-info-app .ul-outer {
	width: 460px;
	min-height: 1px;
	float: left;
	margin-top: 50px
}

.detail-info-app .ul-outer .detail-info-app-item {
	width: 100%;
	min-height: 10px;
	margin-left: 54px
}

.detail-info-app .ul-outer .detail-info-app-item:last-of-type {
	margin-top: 60px
}

.detail-info-app .ul-outer .detail-info-app-right {
	margin-left: 94px
}

.detail-info-app .ul-outer.right {
	float: right
}

.detail-info-app .ul-outer h5,.detail-info-app .ul-outer h6 {
	font-size: 30px;
	margin: 0;
	font-weight: 400;
	text-align: left;
	min-height: 44px;
	line-height: 44px
}

.detail-info-app .ul-outer .green {
	color: #09aeb0
}

.detail-info-app .ul-outer .logo {
	width: 54px;
	height: 54px;
	float: left;
	background-color: #4acecb;
	border-radius: 50%;
	background-position: -128px 9px;
	background-image: url(../images/app-sprite-32aa760a10.png)
}

.detail-info-app .ul-outer .logo.second {
	background-position: -80px 11px
}

.detail-info-app .ul-outer .text {
	line-height: 30px;
	margin-top: 20px;
	font-size: 14px;
	color: #7b8390
}

.detail-info-app:after {
	height: 1px
}