html, body{ 
    margin:0; 
    padding:0; 
} 
body{
    overflow:auto;
}
.header_bg{
    width: 100%;
}
.header_bt{            
    width: 9%;
    position: relative;
    top: -6.3vw;
    left: 52.5%;
    cursor: pointer;
}
.kh_content{
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.kh_content img{
    width: 50%;
    padding: 36px 0;
    border-top: 1px dashed #f79f6f;
}
.kh_content img:nth-of-type(1),.kh_content img:nth-of-type(2){
    border-top: 0px;
    padding: 0;
}
.kh_content img:nth-of-type(2){
    padding-bottom: 36px;
}
.kh_content img:last-of-type{
    padding-bottom: 106px;
}
.kh_content p{
    font-size: 16px;
    font-weight: 400;
    color: #f79f6f;
    display: flex;
    flex-direction: row;
    align-items: center;
}
.kh_content p:nth-of-type(1){
    margin: 36px 0;
}
.kh_content p:nth-of-type(2){    
    margin: 56px 0 31px 0;
}
.dashed-right{
    width: 114px;
    height: 1px;
    display: inline-block;
    background: linear-gradient(270deg, #ffffff 0%, #f79f6f 100%);
}
.dashed-left{
    width: 114px;
    height: 1px;
    display: inline-block;
    background: linear-gradient(90deg, #ffffff 0%, #f79f6f 100%);
}
.dashed-icon{
    width: 2.2px;
    height: 2.2px;
    border-radius: 2.2px;
    background-color: #f79f6f;
    display: inline-block;
}
.main{
    background: #ffffff;
}
/* app下载遮罩 */
.download-wrap {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 11111;
}
.download-content {
    width: 316px;
    height: 376px;
    background:  center center no-repeat;
    background-size: cover;
    padding-top: 50px;
    text-align: center;
    color: #323232;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -188px;
    margin-left: -158px;
}
.download-content h3 {
    font-weight: 400;
    font-size: 16px;
    line-height: 16px;
}
.download-content p {
    font-size: 14px;
}
.download-img {
    width: 224px;
    height: 224px;
    border: 1px solid rgba(215, 19, 56, .2);
    padding: 5px;
    margin: 20px auto 18px;
}
.download-img img {
    width: 100%;
    height: 100%;
}
.close-popup {       
    width: 20px;
    height: 20px;
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
}