section {
	width: 1200px;
	margin: 180px auto 90px;
	text-align: center;
	display: block;
}

.tit {
	font-size: 30px;
	color: #4a4a4a;
	font-weight: 100;
	height: 30px;
	line-height: 30px;
}

.sec-3 ul {
	margin: 75px auto 0;
	width: 775px;
}

.sec-3 li {
	float: left;
	margin-right: 10px;
	width: 243px;
	height: 243px;
	border: 1px solid #e4e4e4;
	color: #8b8a8a;
	font-family: 'Myriad Pro';
	font-size: 18px;
	background-color: #fff;
	-webkit-transition: all 0.3s;
	-transition: all 0.3s;
	-ms-transition: all 0.3s;
	-moz-transition: all 0.3s;
}

.sec-3 .icon {
	width: 43px;
	height: 50px;
	display: block;
	margin: 0px auto 18px;
}

.sec-3 .icon.ios {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) 0 0 no-repeat;
}

.sec-3 .icon.android {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) -78px 0 no-repeat;
}

.sec-3 .icon.wp {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) -155px 0 no-repeat;
}

.sec-3 a {
	text-decoration: none;
	display: block;
	color: #8b8a8a;
	height: 174px;
	padding-top: 70px;
	-webkit-transition: all 0.3s;
	-transition: all 0.3s;
	-ms-transition: all 0.3s;
	-moz-transition: all 0.3s;
}

.sec-3 li.qr-code img {
	margin-top: 70px
}

.sec-3 li.qr-code p {
	font-size: 12px;
	margin-top: -8px;
}

.sec-3 li.down.on {
	background-color: #007aff;
	box-shadow: 5px 15px 30px rgba(0, 0, 0, .3);
	border: 1px solid #007aff;
}

.sec-3 li.down.on a {
	color: #fff;
}

.sec-3 li.down.on .icon.ios {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) 0 -110px no-repeat;
}

.sec-3 li.down.on .icon.android {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) -77px -111px no-repeat;
}

.sec-3 li.down.on .icon.wp {
	background: url(http://s.momocdn.com/static/w5/img/website/icon.png) -154px -110px no-repeat;
}

.sec-3.download-popup {
	width: 690px;
	height: 374px;
	background: #ffffff;
	padding-top: 1px;
}

.sec-3.download-popup li {
	width: 134px;
	height: 134px;
	margin-right: 25px;
}

.sec-3.download-popup ul {
	margin: 106px 0px 0px 38px;
}

.sec-3.download-popup a {
	padding-top: 24px;
	height: 110px;
}

.sec-3.download-popup li.qr-code img {
	margin-top: 15px;
}