img {
	width: 100%;
}

.banner {
	width: 100%;
	position: relative;
}

.banner a {
	position: absolute;
	display: block;
	top: 3%;
	right: 3%;
}

.first-list {
	width: 90%;
	margin: 0 auto;
	overflow: hidden;
	margin-top: 10px;
	margin-bottom: 75px;
}

.first-list li {
	width: 100%;
	float: left;
	margin-top: 50px;
}

.first-list li:nth-of-type(2n) {
	float: right;
}

.cent {
	width: 90%;
	margin: 0 auto;
}

.title {
	width: 31%;
	margin-bottom: 27px;
}

.foot {
	width: 90%;
	margin: 0 auto;
	margin-bottom: 30px;
}

.cent ul li {
	margin-top: 17px;
}

.cent ul {
	margin-bottom: 30px;
}
.logo{
	position: absolute;
	top: 3%;
	left: 5%;
	width: 12%;
}
.b-an{
	width: 100%;
	text-align: center;
	color: black;
	margin-bottom: 30px;
}