html {
	font-size: calc(100vw/192);
}

body {
	font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
	color: #000000;
	margin: 0;
	padding: 0;

}


#a标签去下划线 
a{
	text-decoration: none
}

#app.pc {
	text-align: center;
	/* font-size: 5rem; */
	width: 100%;
}
header {
	width: 100%;
	height: 70rem;
	margin: 0;
}

.head {
	padding-top: 0;
	margin-top: 0;
	/*background-image: url("../img/head-bg.webp");*/
	background-color: #fff;
	width: 100%;
	height: 97rem;
	/*background-repeat:no-repeat;*/
	background-size: 100%, 98rem;
}
.head_logo{
	width:100%;
	height:12rem;

}

.head_img {
	cursor: pointer;
	width: 15rem;
	height: 3rem;
	margin-left: 30rem;
	margin-top:-8.5rem;
	float:left;
	background-image: url("../img/LOGOBlue.svg");
	background-size: 100%,100%;
}

.head ul {
	list-style: none;	/* 将默认的列表符号去掉 */
	color: #474747;
	font-size:1.8rem;
	margin-top:0rem;
	float:right;
	margin-right:24rem;
}

.head ul li {
	list-style: none;	/* 将默认的列表符号去掉 */
	display: inline;
	line-height: 11rem;
	padding-right: 5rem;
}

.head ul li a{
	color: #474747;
}
.sloganimg {
	margin-top: 25rem;
	width: 100rem;
}
li a{
	text-decoration:none;
}
.head_wenzi{
	width:100%;
	height:18rem;
	margin-bottom: 5rem;
}
.biaoTi{
	width:40rem;
	height:14rem;
	margin-left:29.5rem;
	text-align:left;
}
.wenzi{
	width:69%;
	height:6rem;
	margin:auto;
	
}
.bt_span1{
	font-size:30px;
	color:#183B56;
}
.bt_span2{
	font-size:30px;
	color:#183B56;
}
.bt_wz{
	width:38%;
	overflow:hidden;
	word-break:break-all; 
	float:left;
	color:#5A7184;
	text-align:left;
	font-size: 1.6rem;
	line-height: 3rem;
}
.bt_spanblue{
	color:#1565D8;
	font-size:1.8rem;
	margin-top:-2rem;
	width:100%;
	font-weight: 700;
}
.head_video{
	width:100%;
	height:35rem;
}

.head_video video{
	width: 100%;
	height: 100%;
}
.slogan{
	height: 100%;
	/* width: 100%; */
}