.lunbo {
		            width:100%; height: 500px;
		            margin-bottom: 20px;
		        }
		
		        .lunbo .swiper-slide {
		            font-size: 0;
		            line-height: 0;
		        }
		
		       
		
		        .lunbo img {
		           width:100%; height: 500px;
		        }
	.swiper-button-prev,
	.swiper-button-next{
		position:absolute;
		width:40px;
		height:74px;
	}
	.swiper-button-prev{
		background: url(focus_btn.png) bottom left no-repeat !important;
		left: 0;
	}
	.swiper-button-next{
		background: url(focus_btn.png) bottom right no-repeat !important;
		right: 0;
	}

	.swiper-button-prev:hover{  background: url(focus_btn.png) top left no-repeat !important }  
	.swiper-button-next:hover{  background: url(focus_btn.png) top right no-repeat !important}