body{
	margin:0;
}

.main{
  width:100%;
  overflow:hidden;
  position: relative;
  min-height: 600px;
  margin-left: 0;
  left: 0;
}

.main .bg{
  width:100%;
  position: absolute;
  top: 0;
  height: auto;
}

.logo{
  z-index:999;
  position:relative;
  margin:0 auto;
  width:700px;
}

.menu{
  position:absolute;
  z-index:999;
  height:100px;
  background:rgba(0, 0, 0, 0.38);
  width:100%;
}

.menu img{
	padding:20px 0px;
	margin:0 20px;
}

.menu-item{
	width:570px;
	margin:0 auto;
}

.intro{
	float:left;
	
}
.product{
	float:left;
	
}