@charset "utf-8";
/* CSS Document */
@media screen and (min-width: 640px) {
  html {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    overflow-x: hidden;
  }

  body {
    overflow-x: hidden;
  }

  /* 防止子元素溢出容器 */
  * {
    max-width: 640px;
  }
}
* {
  margin: 0;
  padding: 0;
  font-family: Microsoft YaHei;
  box-sizing: border-box;
}
li{
    list-style: none;
}
body{
    
    max-width: 640px;
}
.itk_header{
  width: 100%;
  background-color: #000000;
  height: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  z-index: 999999999;
  padding: 0 3%;
}
.itk_header .itk_logo img{
  height: 1.2rem;
}
.itk_header .itk_btn{
  display: flex;
  align-items: center;
}
.itk_header .itk_btn a{
    display: flex;
    margin-right: .5rem;
    height: .9rem; 
}
.itk_header .itk_btn img{
  height: .9rem;   
}
.itk_header .itk_login_btn{
    height: .8rem;
    padding: 0 .3rem;
    background-color: rgba(62,235,233,1);
    color: #000;
    font-size: .4rem;
    line-height: .8rem;
    border-radius: 8px;
    border: none;
}
.itk_banner {
  background-color: #000;
  width: 100%;
  padding-top: 3rem;
  height: 20rem;
  overflow: hidden;
  padding-bottom: .8rem;
}
.itk_banner .itk_banner_a {
  width: 100%;
  color: #fff;
  padding: 0 6%;
  position: absolute;
  z-index: 100;
}
.itk_banner .itk_banner_a h1{
    font-size: .9rem;
    text-align: center;
    margin-bottom: .5rem;
}
.itk_banner .itk_banner_a p{
    text-align: center;
    font-size: .4rem;
    margin-bottom: .5rem;
}
.itk_banner .itk_banner_a .itk_join_btn{
    margin:10%;
	width: 80%;
    display: block;
    text-align: center;
    font-size: .5rem;
    font-weight: bold;
    background-color: rgba(62,235,233,1);
    border-radius: 8px;
    color: #000;
    line-height: 1rem;
    margin-bottom: .6rem;
}
.itk_banner .itk_banner_a .itk_a{
    text-align: center;
    color: rgba(62,235,233,1);
    font-size: .5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.itk_banner .itk_banner_a .itk_a img{
    width: .5rem;
    margin-left: .2rem;
}
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
.rotating-image {
  animation: rotate 400s linear infinite;
}
.itk_banner .itk_banner_b {
  position: absolute;
  top: 8rem;
  width: 100%;
  height: 12rem;
  overflow: hidden;
}
.itk_banner .itk_banner_b img {
  position: absolute;
  height: 37rem;
  left: -100%;
  top: -65%;
  width: 32rem;
  z-index: 9;
}

.itk_banner .itk_banner_b video {
  width: 20rem;
  height: 1000px;
  position: absolute;
  top: -30%;
}
.itk_info{
   padding: 5%;
   color: #fff;
   background-color: #000;
}
.itk_info h1{
    font-size: .7rem;
    margin-bottom: .4rem;
}
.itk_info p{
    font-size: .36rem;
    color: #999;
    margin-bottom: 1rem;
}
.itk_info ul{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    width: 90%;
    margin: 0 auto;
}
.itk_info ul li{
    width: 42%;
    font-size: .4rem;
    font-weight: bold;
    margin-bottom: .6rem;
    line-height: .5rem;
}
.itk_info ul li span{
    font-size: 1.6rem;
    line-height: 1;
    display: block;
    margin-bottom: .1rem;
}
.itk_info ul li span i{
    font-size: .7rem;
    color: rgba(62,235,233,1);
    font-style: normal;
}
.itk_scroll{
    padding: 5%;
    padding-bottom: 5%;
    overflow: hidden;
	background-color: #000;
}
#div1 {
    width: 750px;
    height: 8rem;
    position: relative;
    overflow: hidden;
	max-width: 750px;
}
#div1 ul {
    position: absolute;
    top: 0;
    left: 0;
}
#div1 ul li {
    float: left;
    width: 8rem;
    height: 7rem;
    margin-left: .5rem;
    list-style: none;
    background-color: #242829;
    padding: .8rem;
    color: #fff;
    border-radius: .4rem;
}
#div1 ul li h3{
    font-size: .6rem;
    margin-bottom: .2rem;
}
#div1 ul li p{
    font-size: .4rem;
    line-height: 1.6;
}

.itk_txt{
    background-color: rgba(62,235,233,1);
    padding: 25% 10%;
    color: #000;
    font-size: .9rem;
    text-align: center;
    font-weight: bold;
}
.itk_txt a{
    display: block;
    border: solid .1rem #000;
    text-align: center;
    font-size: .5rem;
    line-height: 1.2rem;
    margin-top: 1rem;
    border-radius: .2rem;
}
.itk_copy{
    padding: 15% 0;
    font-size: .35rem;
    line-height: 2.6;
    color: #999;
    text-align: center;
	background-color: #000;
}
.itk_copy a{
    color: #fff;
    display: block;
}
.overlay{
    display:none;
    position: fixed;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    margin: auto;
    z-index:101;
    background:rgba(0,0,0,0.7);
}
.popup{
    margin: auto;
    margin-top: 5rem;
    width:8rem;
    height: 8.5rem;
    background-color: #fff;
    border-radius: .3rem;
}
.popup ul{
    padding: 5%;
    padding-bottom: 3%;
}
.popup ul li:first-child{
    text-align: center;
    margin-bottom: .5rem;
    
}
.popup ul li:nth-child(2){
    border: solid 1px #ccc;
    border-radius: .2rem;
}
.popup ul li:nth-child(2) input{
    border: none;
    width: 70%;
}
.popup ul li:nth-child(2) span{
    display: inline-block;
    width: 1px;
    height: .5rem;
    background-color: #ccc;
    margin-top: .3rem;
    margin: 0 .2rem;
}
.popup ul li{
    margin-bottom: .4rem;
    font-size: .36rem;
    line-height: 1.6;
    font-weight: bold;
}
.popup ul li .reg_mobile{
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.popup ul li input{
    border: solid 1px #ccc;
    width: 100%;
    height: 1.2rem;
    padding: 0 3%;
    border-radius: .2rem;
    color: #999;
}
.popup ul li input:focus{
    outline: none;
}
.popup ul li select{
    width: 25%;
    padding-left: 3%;
    background: transparent;
    border: none;
    color: #333;
}
.popup .login{
    font-size: .426667rem;
    line-height: 1.12rem;
    border-radius: .3rem;;
    background-color: #2397a4;
    color: #fff;
    width: 90%;
    text-align: center;
    display: block;
    margin: 0 auto;
    border: none;
    margin-bottom: .5rem;
}
.popup ul li:last-child{
    border: solid 1px #ccc;
    width: 100%;
    height: 1.2rem;
    padding: 0 3%;
    border-radius: .2rem;
    color: #999;
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 0;
}
.popup ul li:last-child input{
    width: 85%;
    border: none;
    background-color: transparent;
}
.popup ul li:last-child img{
    height: .4rem;
}
.popup h6{
    font-size: .3rem;
    margin-bottom: .8rem;
    font-weight: normal;
    padding-left: 5%;
}
.popup h6 a{
    color: #888;
}
.popup p{
    font-size: .35rem;
    text-align: center;
}
.popup p a{
    font-size: .35rem;
    display: inline-block;
    margin-left: .2rem;
    color: #2397a4;
    font-weight: bold;
}
.popup .tk_keep_pwd{
    padding-left: 6%;
    padding-top: 5%;
    display: flex;
    align-items: center;
}
.popup .tk_keep_pwd #KeepPWD{
    border-color: #666;
    margin-top: 0;
    margin-right: .2rem;
}
@media screen and (min-width: 450px)  {
	.itk_banner .itk_banner_b img {
	  position: absolute;
	  height: 42rem;
	  left: -60%;
	  top: -90%;
	  width: 42rem;
	  max-width: 42rem;
	  z-index: 9;
	}
	.itk_banner .itk_banner_b video {
	  width: 30rem;
	  height: 1000px;
	  position: absolute;
	  top: -50%;
	  max-width: 30rem;
	}
	#div1 {
	    width: 35rem;
		max-width: 35rem;
	}
	#div1 ul {
	    max-width: initial;
	}
}