.banner img {
	display: block;
	width: 100%;
}

.main {
	background-color: #f6f6f6;
}

.main .type_nav {
	border-bottom: 1px solid #4b4b4b;
}

.main .type_nav ul li {
	float: left;
}

.main .type_nav ul li a {
	display: block;
	font-family: pingfangm;
	font-size: 18px;
	color: #424242;
	line-height: 60px;
	margin: 0 40px;
}

.main .type_nav ul li a.active {
	color: #00368d;
}

.main .content {
	padding-top: 60px;
	padding-bottom: 80px;
}

.main .content ul {
	margin-left: -25px;
	margin-right: -25px;
	display: flex;
	flex-flow: row wrap;
	justify-content: flex-start;
}

.main .content ul li {
	width: calc((1200px - 150px) / 4);
	margin: 0 25px;
	margin-bottom: 40px;
}

.main .content ul li img {
	display: block;
	width: 100%;
}