html,body{
	width: 100vw;
	overflow-x: hidden;
}
*{
	margin: 0;
	padding: 0;
	font-family: "Microsoft Yahei";
	font-style: normal;
	list-style: none;
	font-size:14px;
	text-decoration: none;
}
.box{
	width:100vw;
}
.boxin{
	display: block;
	box-sizing: border-box;
	margin: 0 auto;
	width:100vw;
}
.top{
	position: fixed;
	display: block;
	top:0;
	left:0;
	box-sizing: border-box;
	padding: 20px 20px 0 20px;
	width:100vw;
	height: 100px;
	overflow: hidden;
	z-index: 99999;
	transition: all 0.5s;
}
.logo{
	float:left;
	display: block;
	margin-right: 10px;
}
.logo img{
	max-height:60px;
}
.logo img.on{
	display: none;
}
.menu{
	display: none;
}
.nav{
	display: block;
	padding-right: 20px;
	text-align: right;
	white-space: nowrap;
}
.nav li{
	display: inline-block;
	box-sizing: border-box;
	padding:0 40px;
	overflow: hidden;
}
.nav li a{
	display:block;
	box-sizing: border-box;
	padding:15px 0;
	font-size:20px;
	height:80px;
	color:#fff;
	white-space: nowrap;
	overflow: hidden;
}
.nav li a:hover,
.nav li a.active{
	border-bottom: 3px solid #fff;
}
.top.on{
	background: rgba(255,255,255,0.618);
	box-shadow: 0 3px 10px #888;
}
.on .logo img{
	display: none;
}
.on .logo img.on{
	display: block;
}
.top.on .nav li a{
	color:#333;
}
.top.on .nav li a:hover,
.top.on .nav li a.active{
	color:#9c3031;
	border-bottom: 3px solid #9c3031;
}
.banner{
	display: block;
	position: relative;
	width:100vw;
	height: auto;
	overflow: hidden;
	z-index: -1;
}
.banner img{
	width: 100vw;
}
.banner .boxin{
	position: absolute;
	left:5vw;
	top:50%;
	color:#fff;
	text-shadow: 0 1px 2px #333;
}
.banner .boxin h2{
	font-size:60px;
	line-height: 200%;
}
.banner .boxin p{
	font-size:24px;
	line-height: 200%;
}
.box{
	display: block;
	position: relative;
	overflow: hidden;
}
.box .boxin{
	padding:80px 50px;
	overflow: hidden;
}
.fr{
	float: right;
}
.fl{
	float: left;
	margin-right:80px;
}
.bg{
	background: #faf4f4;
}
.bb_pic img{
	max-width:50vw;
}
.bb_text{
	display: block;
	padding: 50px 0;
	overflow: hidden;
}
.bb_text h2{
	font-size:32px;
	line-height: 200%;
}
.bb_text span{
	clear: both;
	display: block;
	margin-bottom: 30px;
	background: #9c3031;
	height:3px;
	font-size:32px;
	width:2em;
	overflow: hidden;
}
.bb_text p{
	display: block;
	margin-bottom: 10px;
	font-size:18px;
	line-height: 180%;
	color:#555;
	overflow: hidden;
}
.bb_text p i{
	display: inline-block;
	font-size:24px;
	margin-right: 10px;
	color:#9c3031;
}
.bb_text h2{
	font-size:32px;
}
.bb_text ul{
	display: block;
	position: relative;
	padding-top: 50px;
	overflow: hidden;
}
.bb_list li{
	float: left;
	display: block;
	margin-right: 30px;
	text-align: center;
	font-size:14px;
}
.bb_list li i{
	font-size:50px;
	line-height: 88px;
}
.bb_list li:nth-child(4n+1) i{
	color:#9c3031;
}
.bb_list li:nth-child(4n+2) i{
	color:orangered;
}
.bb_list li:nth-child(4n+3) i{
	color:turquoise;
}
.bb_list li:nth-child(4n+0) i{
	color:green;
}
.footer{
	display: block;
	padding-top: 120px;
	background: #333;
	color:#fff;
}
.footer .btmlogo{
	float:left;
	display: block;
	box-sizing: border-box;
	padding-left: 20px;
	width:30%;
}
.footer .btmlogo img{
	max-height: 60px;
}
.footer .sitemap{
	display: block;
	position: relative;
	box-sizing: border-box;
	padding-left: 80px;
	margin-bottom: 80px;
	width:70%;
	overflow: hidden;
}
.footer .sitemap dl{
	float: left;
	display: block;
	width:25%;
	overflow: hidden;
}
.footer .sitemap dl dt{
	display: block;
	font-size:20px;
	line-height: 50px;
	overflow: hidden;
}
.footer .sitemap dl dd{
	display: block;
	font-size:16px;
	line-height: 30px;
	overflow: hidden;
}
.footer .sitemap dl dd a{
	color:#ccc;
}
.footer .sitemap dl dd a:hover{
	color:#fff;
}
.footer p{
	display: block;
	box-sizing: border-box;
	padding: 30px 20px;
	border-top:1px solid #444;
	color:#888;
	font-size:12px;
	line-height: 150%;
	text-align: center;
}
.footer p a{
	color:#888;
	margin: 0 5px;
}
.footer a:hover{
	color:#fff;
}
@media screen and (min-width:1400px) {
	.boxin{
		max-width:1400px !important;
	}
	.banner .boxin{
		left:25vw;
	}
}
@media screen and (max-width:1024px) {
	.nav li{
		padding: 0 20px;
	}
	.bb_pic img{
		max-width:40vw;
	}
	.bb_text{
		padding:0;
	}
	.bb_text span{
		margin-bottom: 20px;
	}
	.bb_text ul{
		padding-top: 20px;
	}
	.bb_list li i {
		font-size: 36px;
		line-height: 48px;
	}
}
@media screen and (max-width:1024px) and (min-width:414px) {
	.top{
		padding: 10px 10px 0 10px;
		height:70px;
	}
	.logo img{
		max-height: 50px;
	}
	.nav li{
		padding: 0 15px;
	}
	.nav li a{
		padding: 12px 0;
		font-size: 16px;
		height: 60px;
	}
	.banner .boxin h2{
		font-size: 36px;
	}
	.banner .boxin p {
		font-size: 18px;
	}
	.box .boxin{
		padding: 50px 30px;
	}
	.bb_pic img{
		max-width:40vw;
	}
	.bb_text{
		padding:0;
	}
	.bb_text span{
		margin-bottom: 20px;
	}
	.bb_text ul{
		padding-top: 20px;
	}
	.bb_text h2,
	.bb_text span{
		font-size:24px;
	}
	.bb_text p{
		margin-bottom: 0;
		font-size:14px;
	}
	.bb_list li{
		margin-right: 20px;
	}
	.bb_list li i {
		font-size: 28px;
		line-height: 32px;
	}
	.footer{
		padding-top: 60px;
	}
	.footer .sitemap{
		padding-left: 30px;
		margin-bottom: 50px;
	}
	.footer p{
		padding: 20px;
	}
}
@media screen and (max-width:414px) {
	.top{
		position: fixed;
		top:0;
		left:0;
		padding: 10px 10px 0 10px;
		height:56px;
		box-shadow: 0 3px 10px #888;
		background: #fff !important;
	}
	.top img{
		display: none;
	}
	.top img.on{
		display: block;
	}
	.logo img{
		max-height: 36px;
	}
	.menu{
		float: right;
		display: block;
		margin: 4px 15px;
		width:36px;
		height:36px;
		text-align: center;
		overflow: hidden;
		transition: all 0.5s;
	}
	.menu i{
		display: block;
		display: block;
		font-size:28px;
		overflow: hidden;
		transition: all 0.5s;
	}
	.menu.a i{
		transform: rotate(45deg);
	}
	.nav{
		display: block;
		position: fixed;
		box-sizing: border-box;
		right:-40vw;
		top:56px;
		padding-right: 0;
		width:40vw;
		height:100vh;
		background: #fff;
		transition: all 0.5s;
	}
	.nav.a{
		right:0;
		box-shadow: 0 3px 10px #888;
	}
	.nav li{
		display: block;
		width:100%;
		padding: 0 15px;
		text-align: center;
		border-bottom:1px solid #e1e2e3;
	}
	.nav li a{
		padding: 12px 0;
		font-size: 16px;
		height: 60px;
		line-height: 36px;
		color:#333;
	}
	.nav li a.active{
		color:#9c3031;
		border-bottom: 3px solid #9c3031;
	}
	.banner{
		padding-top: 56px;
	}
	.banner .boxin h2{
		font-size: 16px;
	}
	.banner .boxin p {
		font-size: 12px;
		line-height: 150%;
	}
	.box .boxin{
		padding: 20px 15px;
	}
	.bb_pic img{
		max-width:40vw;
	}
	.bb_text{
		padding:0;
	}
	.bb_text span{
		margin-bottom: 20px;
	}
	.bb_text h2,
	.bb_text span{
		font-size:18px;
	}
	.bb_text p{
		margin-bottom: 0;
		font-size:14px;
	}
	.bb_text p i{
		font-size:18px;
		margin-right:5px;
	}
	.bb_list{
		position: relative;
		margin-top: 20px;
		padding: 10px 0;
		border-radius: 6px;
		background: #faf4f4;
		overflow: hidden;
	}
	.bb_list li{
		width:25%;
		margin-right: 0;
	}
	.bb_list li i {
		font-size: 28px;
		line-height: 32px;
	}
	.bg .bb_list{
		background: #fff;
	}
	.fr{
		margin-left:10px;
	}
	.fl{
		margin-right:20px;
	}
	.footer{
		padding-top: 30px;
	}
	.footer .btmlogo{
		width: 100%;
		opacity:0.2;
		padding-bottom: 10px;
	}
	.footer .btmlogo img{
		max-height:36px;
	}
	.footer .sitemap{
		width: 100%;
		padding-left: 0;
		margin-bottom: 30px;
		border-top: 1px solid #444;
	}
	.footer .sitemap dl{
		width:auto;
		padding:0 5px 0 15px;
	}
	.footer .sitemap dl dt{
		font-size:14px;
	}
	.footer .sitemap dl dd{
		font-size:12px;
	}
	.footer p{
		padding: 15px;
	}
	.footer p a{
		display: block;
	}
}