.index_main{
	background: #f7f7f7;
}

.index_main .section1{
	position: relative;
	width:100%;
	height: 100%;
	margin: 0 auto;
}

.index_main .section2,.section3,.section4,.section5,.section6,.section7,.section8{
	width:100%;
	height: 100%;
	margin: 0 auto;
}