.bg-pic {
	width: 100%;
	height: 100%;
	min-width: 1200px;
	background-color: #3c4448;
}
.pic-box {
	width: 220px;
	height: 100%;
	float: left;
	transform: skew(-20deg);
	-webkit-transform: skew(-20deg);
	-moz-transform: skew(-20deg);
	-o-transform: skew(-20deg);
	margin: 0 10px;
}
.pic-ul {
	width: 100%;
	height: auto;
	overflow: hidden;
	position: absolute;
	left: 0;
	bottom: -220px;
}
.pic-item {
	width: 300px;
	height: 200px;
	float: left;
	overflow: hidden;
	position: relative;
	transform: skew(20deg);
	-webkit-transform: skew(20deg);
	-moz-transform: skew(20deg);
	-o-transform: skew(20deg);
	left: -36px;
	margin: 20px 0 0 0;
}
.box-diff .pic-ul {
	padding: 100px 0;
}