body,img,p,a{
	margin: 0;
	padding: 0;
	border: none;
	text-decoration: none;
	font-family: "微软雅黑";
}
body{
	background-color: #f9f9f9;
}
.head{
	width: 100%;
	height: 40px;
	margin: 90px 0 60px 0;
}
.logo{
	height: 40px;
	margin: 0 12% 0 20%;
	float: left;
}
.head a{
	color: #768791;
	line-height: 40px;
	float: left;
	font-size: 20px;
	letter-spacing: 4px;
	margin: 0 3% 0 0;
	transition: 0.4s;
}
.head a:hover{
	color: #263843;
}
.head .cho{
	color: #263843;
}