*{
	padding: 0px;
	margin: 0px;
	box-sizing: border-box;
	font-family: "microsoft yahei";
}
a,a:hover{
	text-decoration: none;
}
img{
	vertical-align: bottom;
}
li{
	list-style: none;
}
html,body{
	max-width: 640px;
	margin: 0 auto;
	position: relative;
}
/* public */
@media (min-width: 651px) and (max-width: 750px) {
	html,body{
		font-size: 24px;
	}
}
@media (min-width: 601px) and (max-width: 650px) {
	html,body{
		font-size: 20px;
	}
}
@media (min-width: 551px) and (max-width: 600px) {
	html,body{
		font-size: 19px;
	}
}
@media (min-width: 501px) and (max-width: 550px) {
	html,body{
		font-size: 18px;
	}
}
@media (min-width: 451px) and (max-width: 500px) {
	html,body{
		font-size: 17px;
	}
}
@media (min-width: 401px) and (max-width: 450px) {
	html,body{
		font-size: 16px;
	}
}
@media (min-width: 351px) and (max-width: 400px) {
	html,body{
		font-size: 14px;
	}
}
@media (min-width: 300px) and (max-width: 350px) {
	html,body{
		font-size: 12px;
	}
}



.header {
  width: 100%;
  height: 4rem;
  background-color: #FFFFFF;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
}
.header .header-logo {
  width: 70%;
}
.header .header-logo a {
  display: block;
}
.header .header-logo a img {
  width: 100%;
}


.banner{
	width: 100%;
}
.banner .swiper-container .swiper-slide img{
	width: 100%;
}

.footer{
	background-color: #434343;
	padding: 1rem;
	margin-bottom: 4rem;
}
.footer p{
	text-align: center;
	color: #eee;
	line-height: 2rem;
}

.posi_footer{
	padding: 0 1rem;
	position: fixed;
	z-index: 3;
	bottom: 0px;
	left: 50%;
	transform: translateX(-50%);
	max-width: 640px;
	width: 100%;
	height: 4rem;
	display: flex;
	justify-content: space-between;
	background-color: #FFFFFF;
}
.posi_footer .item{
	width: 20%;
	padding: 0.5rem 0;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
}
.posi_footer .item.active p{
	color: #1464DA;
}
.posi_footer .item .img{
	width: 30%;
}
.posi_footer .item .img img{
	width: 100%;
}
.posi_footer .item p{
	color: #000;
}