html,body,p,h1,h2,h3,h4 {
     margin: 0;
     padding: 0;
 }

 body{
     width: 30rem;
     margin: 0 auto;
     background-color: #40bde1;
     font-family: "微软雅黑";
 }

 .sec_head {
 	width: 30.0rem;
 	height: 51.2rem;
 	background-image: url(../images/pic_1.png);
 	overflow: hidden;
 	background-size: cover;
 	position: relative;
 }

 .sec_body:nth-child(2) {
 	width: 30rem;
 	height: 39.16rem;
 	background-image: url(../images/pic_2.png);
 	background-size: cover;
 }

 .sec_body:nth-child(3) {
 	width: 30rem;
 	height: 38.8rem;
 	background-image: url(../images/pic_3.png);
 	background-size: cover;
 }

 .sec_body:nth-child(4) {
 	width: 30rem;
 	height: 38.8rem;
 	background-image: url(../images/pic_4.png);
 	background-size: cover;
 }

 .sec_body:nth-child(5) {
 	width: 30rem;
 	height: 38.8rem;
 	background-image: url(../images/pic_5.png);
 	background-size: cover;
 }

 .sec_footer {
 	width: 30.0rem;
 	height: 16.64rem;
 	background-image: url(../images/pic_6.png);
 	background-size: cover;
 	overflow: hidden;
 	margin-bottom: 4.32rem;
 }

 .joinNow {
 	width: 12.32rem;
 	height: 2.88rem;
 	margin: 16.0rem auto 0;
 	background: url(../images/btn_lijijiaru.png) center no-repeat;
 	background-size: contain;
 }
 
 .logo {
	width: 5.4rem;
	height: 5.4rem;
	position: absolute;
	left: 12.32rem;
	top: 2.72rem;
	background: url("../images/logo.png") center no-repeat;
	background-size: contain;
	display: none;
 }

 .dLoadNow {
 	width: 12.32rem;
 	height: 2.88rem;
 	margin: 10.64rem auto 3.12rem;
 	background: url(../images/btn_lijixiazai.png) center no-repeat;
 	background-size: contain;
 }