@media screen and (max-width: 768px) {
	.head-bg{
		display: none;
	}
	.w1100 {
		width: 100%;
	}
	.bt-left ,.main-fl-bg{
		float: none;
		height: 40px;
		background-color: #fff;
		min-height: 40px;
	}
	.main-fl-tit{
		display: none;
	}
	#main-fl-box{
		height: 40px;
	}
	.mi-nav-bg{
		display: none;
	}
	.bt-right{
		float: none;
	}
	.main-fr-bg{
		border: none;
	}
	.foot-bg1{
		display: none;
	}
}