@media screen and (max-width:2560px) {
* {
	margin: 0;
	padding: 0;

	-webkit-font-smoothing: antialiased;
}
.banner {
	position: relative;
	width: 100%;
	height: auto;
	overflow: hidden;
}
	.banner ul li {
		display: block;
		float: left;
		width: 33%;
		min-height: 560px;

		-o-background-size: 100% 100%;
		-ms-background-size: 100% 100%;
		-moz-background-size: 100% 100%;
		-webkit-background-size: 100% 100%;
		background-size: 100% 100%;
	}
	.banner .btn, .banner .dot {
		-webkit-filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
		-moz-filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
		-ms-filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
		-o-filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
		filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
	}

	.banner .dots {
		position: absolute;
		text-align: center;
		bottom: 20px;
		width: 100%;
	}
		.banner .dots li {
			display: inline-block;
			*display: inline;
			zoom: 1;

			width: 10px;
			height: 10px;
			line-height: 10px;
			margin: 0 4px;

			text-indent: -999em;
			*text-indent: 0;

			border: 2px solid #fff;
			border-radius: 6px;

			cursor: pointer;
			opacity: .4;

			-webkit-transition: background .5s, opacity .5s;
			-moz-transition: background .5s, opacity .5s;
			transition: background .5s, opacity .5s;
		}
			.banner .dots li.active {
				background: #77b800;
				opacity: 1;
			}

	.banner .arrows {
		position: absolute;
		display:-moz-box;
		display:-webkit-box;
		display:box;
		width: 100%;
		text-align:center;
		bottom: 50%;
		color: #ccc;
	}
		.banner .arrow {
			display: inline;
			cursor: pointer;
		}
		.banner .arrow.prev {
			display: block;
			width: 40px;
			height: 120px;
			margin-left: 30px;
			color: #000;
			background: url('heronav_prev.png')  no-repeat ;
			opacity: 0.4;
			
		}
		.banner .arrow.prev:hover {
			opacity: 1;
			
		}
		.banner .arrow.next {
			display: block;
			position: absolute;
			width: 40px;
			height: 120px;
			right: 30px;
			color: #000;
			background: url('heronav_next.png') no-repeat ;
			opacity: 0.4;
		}
		.banner .arrow.next:hover {
			opacity: 1;
}

@media screen and (max-width:1024px) {
	.banner .arrows {
		bottom: 35%;
		
	}
}

@media screen and (max-width:480px) {
.banner ul li {
		min-height: 259px;
}

}