*{
	padding: 0;
	margin: 0;
}
a{
	text-decoration: none; 
}
ul,li{
	list-style: none;
}
body{
	background-color:#f0f0f0;
	}
.top{
	width: 100%;
	height: 40px;
	background-color: #333333;
}
.nav{
	width: 1200px;
	height: 80px;
	margin: 0 auto;
}
.logo h1{
	float: left;
	font-weight: bold;
	font-size: 36px;
	color: #050505;
	line-height: 80px;
}
.nav ul{
	float: right;
	line-height: 80px;
}
.nav ul li{
	float: left;
	margin-left: 40px;
}
.nav a{
	float: left;
	font-size: 18px;
	color: #333;
	/* font-weight: bold; */
}
.nav a:hover{
	background-color: #ffff00;
	font-weight: bold;
}
.nav .aa{
	text-decoration: underline;
	font-weight: bold;
}

/* bannner部分 */
.banner{
	width: 100%;
	margin-bottom: 100px;
}
.banner img{
	width: 100%;
}

.box{
	width: 1200px;
	margin: 60px auto;
}
h2{
	font-size: 22px;
	color: #333333;
	text-align: center;
	border: 1px solid white;
	margin-bottom: 30px;
}
.content{
	margin-bottom: 40px;
}
.contentlist{
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
	justify-content: space-between;
}
.yy p{
	font-size: 14px;
	color: #666;
	padding-top: 6px;
	/* text-align: center; */
}
p{
	font-size: 14px;
	color: #666;
	padding-top: 6px;
	text-align: center;
}
.footer{
	width: 100%;
	height: 300px;
	background-color: #333333;
	overflow: hidden;
}
.footer .left{
	float: left;
}
.footer .right{
	float: right;
}
h3{
	color: white;
	padding-bottom: 10px;
}
span{
	display: block;
	font-size: 14px;
	color: white;
	line-height: 28px;
}
.footer a{
	font-size: 14px;
	color: white;
	line-height: 28px;
}
.footer a:hover{
	font-weight: bold;
}
.bottom{
	width: 100%;
	height: 40px;
	background-color: black;
}
.bottom p{
	font-size: 14px;
	color: white;
}