html{
	font-family: "microsoft yahei";
	font-size: 16px;
}
*{
	margin: 0;
	padding: 0;
	list-style: none;
}
a{
	text-decoration: none;
	color: #000;
}
.auto{
	margin: 0 auto;
}
.clearfix::after{
	content: '';
	display: block;
	clear: both;
}

.top1{
	width: 1000px;
	height: 25px;
	line-height: 25px;
	background-color: #333;
	color: #ccc;
	font-size: 12px;
}
.top1>div{
	width: 840px;
}
.top2{
	width: 1000px;
	height: 60px;
	line-height: 60px;
	background-color: orangered;
}
.top2 img{
	width: 200px;
	height: 60px;
}
.top2 ul{
	width: 800px;
	height: 60px;
	float: right;
}
.top2 ul li{
	width: 130px;
	height: 60px;
	float: left;
	text-align: center;
}
.top2 ul li:hover{
	background-color: rgba(0,0,0,0.5);
}
.top2 ul li a{
	color: #fff;
}
#app{
	position: relative;
	width: 1000px;
	height: 400px;
	overflow: hidden;
	margin: 0 auto 0;
}
#app .list-img{
	position: absolute;
	width: 3000px;
	height: 100%;
	left: 0px;
	transition: 0.5s ease;
}
#app .list-img div{
	width: 1000px;
	height: 100%;
	cursor: pointer;
	float: left;
}
#app .list-img div img{
	width: 100%;
	height: 100%;
}
#app a{
	display: block;
	position: absolute;
	top: 50%;
	transform: translate(0,-50%);
	width: 40px;
	height: 60px;
	color: white;
	user-select: none;
	font-size: 30px;
	text-align: center;
	line-height: 60px;
	text-decoration: none;
}
#app a:hover{
	background-color: rgba(0,0,0,0.5);
}
#app a.left{
	left: 0px;
}
#app a.right{
	right: 0px;
}
.banner{
	width: 840px;
	height: 300px;
	margin: 30px auto;
}
.banner img{
	width: 840px;
	height: 300px;
}
.footer{
	width: 1000px;
	height: 50px;
	line-height: 50px;
	text-align: center;
	background-color: #333;
	color: #999;
}