body{
	width: 100%;
	min-width: 1200px;
}
.bvt_header{
	width: 100%;
	min-width: 1200px;
	height: 80px;
	background-color: rgba(0,0,0,0);
	font-size: 14px;
	padding-left: 40px;
	padding-right: 40px;
	box-sizing: border-box;
	position: fixed;
	top: 0;
	z-index: 1;
}
.bvt_header.active{
	background-color: rgba(0,0,0,0.7);
	/* opacity: 0; */
}
.bvt_header .bvt_header_left{
	float: left;
	width: 146px;
	height: 100%;
}
.bvt_header .bvt_header_left .logo{
	width: 100%;
	height: 100%;
	padding-top: 12px;
}
.bvt_header .bvt_header_left .logo a{
	display: inline-block;
	width: 273px;
	height: 56px;
	background: url(../../image/website/main/larkview_tianyiyun_logo.png) no-repeat;
	text-indent: -9999px;
}
.bvt_header .bvt_header_right{
	float: right;
	height: 100%;
}
.bvt_header .bvt_header_right ul{
	float: left;
	line-height: 80px;
}
.bvt_header .bvt_header_right ul li{
	float: left;
	padding: 0 12px;
	position: relative;
}
.bvt_header .bvt_header_right .lognav li{
	padding: 0;
}
.bvt_header .bvt_header_right .lognav li a{
	height: 28px;
    line-height: 26px;
    border: 1px solid #fff;
    color: #fff;
}
.bvt_header .bvt_header_right .lognav li:hover a{
	color: #4070d2;
}
.bvt_header .bvt_header_right ul li a{
	display: inline-block;
	height: 78px;
	padding: 0 12px;
	color: #fff;
}
.bvt_header .bvt_header_right .lognav li .userLog{
	display: inline-block;
	height: 78px;
	line-height: 78px;
	padding: 0 12px;
	color: #fff;
	border: none;
}
.bvt_header .bvt_header_right .lognav li:hover .userLog{
	border-bottom: 2px solid #4070d2;
	color: #4070d2;
}
.bvt_header .bvt_header_right .bvt_nav li.active a{
	border-bottom: 2px solid #4070d2;
	color: #4070d2;
}
.bvt_header .bvt_header_right .lang1{
	display: inline-block;
	width: 16px;
	height: 16px;
	margin-right: 6px;
    vertical-align: sub;
	background: url(../../image/website/main/internationnal.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right ul li.active .lang1{
	background: url(../../image/website/main/internationnal1.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right .lang2{
	display: inline-block;
	width: 16px;
	height: 16px;
	margin-left: 3px;
    vertical-align: sub;
	background: url(../../image/website/main/select.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right ul li.active .lang2{
	background: url(../../image/website/main/select1.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right .user1{
	display: inline-block;
	width: 20px;
	height: 20px;
	margin-right: 4px;
    vertical-align: text-top;
	background: url(../../image/website/main/user.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right ul li.active .user1{
	background: url(../../image/website/main/user1.svg) no-repeat;
	-webkit-background-size: 100% 100%;
	background-size: 100% 100%;
}
.bvt_header .bvt_header_right li .navtab{
	display: none;
	width: 100px;
	background-color: rgba(0,0,0,0.7);
	position: absolute;
	left: 2px;
	top: 80px;
	padding: 10px 0;
}
.bvt_header .bvt_header_right .navtab li{
	width: 100%;
	height: 36px;
	padding: 0;
	line-height: 36px;
	text-align: center;
	font-size: 12px;
}
.bvt_header .bvt_header_right .navtab li a{
	display: inline-block;
	height: 30px;
	border: none;
}
.bvt_header .bvt_header_right ul li.active .navtab a{
	border: none;
	color: #fff;
}
.bvt_header .bvt_header_right ul li .navtab li.active a, .bvt_header .bvt_header_right ul li .navtab li:hover a{
	color: #4070d2;
}
/* footer */
.bvt_footer{
	width: 100%;
	background-color: #272727;
	padding: 40px 0;
}
.bvt_footer .bvt_footer_main{
	width: 1200px;
	margin: 0 auto;
	color: #adadad;
}
.bvt_footer .bvt_footer_main .bvt_footer_top{
	width: 100%;
	border-bottom: 1px solid #666;
	text-align: center;
	padding-bottom: 10px;
	padding-left: 100px;
	box-sizing: border-box;
}
.bvt_footer .bvt_footer_top .bvt_footer_left{
	width: 990px;
	box-sizing: border-box;
	float: left;
}
.bvt_footer .bvt_footer_left p img{
	display: inline-block;
	vertical-align: middle;
	width: 40px;
	opacity: 0.9;
}
.bvt_footer .bvt_footer_left .p1{
	color: #ddd;
	font-size: 13px;
	margin-bottom: 35px;
	height: 36px;
	line-height: 36px;
}
.bvt_footer .bvt_footer_left .p1 a{
	color: #ddd;
}
.bvt_footer .bvt_footer_left .p1 span{
	display: inline-block;
	margin: 0 39px;
	cursor: pointer;
}
.bvt_footer .bvt_footer_left .p2{
	font-size: 12px;
}
.bvt_footer .bvt_footer_left .p2 span{
	display: inline-block;
}
.bvt_footer .bvt_footer_top .bvt_footer_right{
	float: right;
	width: 110px;
}
.bvt_footer .bvt_footer_top .bvt_footer_right p{
	margin-top: 10px;
	color: #adadad;
	font-size: 10px;
}
.bvt_footer .bvt_footer_main .bvt_footer_bot{
	text-align: center;
	padding-top: 16px;
}
.bvt_end{
	width: 100%;
	position: relative;
}
.bvt_end img{
	display: block;
	width: 100%;
}
.bvt_end p{
	color: #fff;
	font-style: italic;
	font-size: 39px;
	letter-spacing: 9px;
	text-shadow: 3px 3px 3px #000;
	/* text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black; */
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
}
.returnTop{
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background-color: #fff;
	cursor: pointer;
	z-index: 10000;
	position: fixed;
	right: 20px;
	bottom: 20px;
	display: none;
}
.returnTop img{
	display: block;
	width: 100%;
}