body{
	/* -webkit-overflow-scrolling:touch;
   overflow:auto;  */
   overscroll-behavior: contain;
   -webkit-overflow-scrolling: auto;
}
.scroll-down {
  position: fixed;
  left: 50%;
  bottom: 40px;
  width: 30px;
  height: 24px;
  margin-left: -15px;
  z-index: 10;
}

.scroll-down img {
  position: relative;
  width: 30px;
  height: 24px;
  animation: move 2s ease-in-out infinite;
}

@keyframes move {
  0% {
	opacity: 1; 
	transform: translateY(0); 
  }
  50% {
	transform: translateY(7px); 
    opacity: 0.2;
  }
  100% {
	opacity: 1; 
	transform: translateY(0); 
  }
}

.scroll-down span:nth-child(2) {
  animation-delay: 0.4s; 
}

.scroll-down span:nth-child(3) {
  animation-delay: 0.8s;
}
.loading-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.6);
	z-index: 9999;
	display: block;
  }
  
  .loading-icon {
	position: absolute;
	top: calc(50% - 20px);
	left: calc(50% - 20px);
	transform: translate(-50%, -50%);
	width: 40px;
	height:40px;
	border: 5px solid #f3f3f3;
	border-top: 5px solid #3498db;
	border-radius: 50%;
	animation: spin 2s linear infinite;
  }
  
  @keyframes spin {
	0% {
	  transform: rotate(0deg);
	}
	100% {
	  transform: rotate(360deg);
	}
  }
  
.NIO-main{
	width: 100%;
	height: 100vh;
}
.NIO-main .swiper{
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	z-index: 2;
}
.NIO-main .swiper-wrapper{
	width: 100%;
	height: 100%;
}
.NIO-main .swiper-slide{
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 2rem;
	color: black;
	position: relative;
}
.NIO-main .sticky-box{
	position: sticky;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
}
.NIO-main .sticky-box .content-box{
	width: 100%;
	height: 100%;
	overflow: hidden;
	position: relative;
}
.content-img{
	width: 100%;
	height: 100%;
	overflow: hidden;
	position: relative;
}
.content-img .content-img-rel{
	width: 100%;
	height: 100%;
	overflow: hidden;
	position: relative;
}
.NIO-main .sticky-box .content-box .content-img .img{
	display: block;
	position: absolute;
    width: 8.5rem;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
	opacity: 0;
}
#launch-btn{
	position: absolute;
	top: 0;
	left: 0;
	width: 300px;
	height: 300px;
	z-index: 30;
	background: rgb(255, 255, 2555);
}
.href-div{
	display: block;
	position: absolute;
    width: 8.5rem;
	height:16.5rem;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
	display: none;
	z-index: 10;
}
.href-div .href-div-rel{
	position: relative;
	width: 100%;
	height: 100%;
}
.href-div .href-div-rel .href-btn{
	position: absolute;
	top:13.44rem;
	left:3rem;
	width: 2.54rem;
	height:.87rem;
}



.er-code-box{
	position: fixed;
	width: 100vw;
	height: 100vh;
	top: 0;
	left: 0;
	background: rgba(0, 0, 0, 0.7);
	z-index: 99999;
	display: none;
}
.er-code-box .code-box-rel{
	position: relative;
	width: 100%;
	height: 100%;
	overflow: hidden;
}
.er-code-box .code-box-rel .code-content{
	width:6rem;
	height:8.23rem;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
}
.er-code-box .code-box-rel .code-content .code-content-rel{
	position: relative;
	width: 100%;
	height: 100%;
}
.er-code-box .code-box-rel .code-content .code-content-rel .close-btn{
	position: absolute;
	bottom:0;
	left: 50%;
	transform: translate(-50%,0);
	width:.73rem;
	height: .73rem;
}
.er-code-box .code-box-rel .code-content .code-content-rel .close-btn img{
	display: block;
	width: 100%;
}
.er-code-box .code-box-rel .code-content .code-content-rel .content-cn{
	width: 100%;
	height:6.7rem;
    border-radius: .3rem;
	overflow: hidden;
	background: #ffffff;
	position: relative;
}
.er-code-box .code-box-rel .code-content .code-content-rel .content-cn .top-img{
	width:4.4rem;
	height: 4.4rem;
	margin:.8rem auto 0 auto;
}
.er-code-box .code-box-rel .code-content .code-content-rel .content-cn .top-img img{
	display: block;
	width: 100%;
}
.er-code-box .code-box-rel .code-content .code-content-rel .content-cn .bottom-txt{
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height:.7rem;
	line-height: .7rem;
	color:#999999;
	font-size:.36rem;
	background: #f3f3f3;
	text-align: center;
}