.kh-buy-block{
    padding: 10rem 0;
    max-width: 1240px;
}
.kh-background-buy{
    max-width: 100%;
    left: -33.5%;
    position: absolute;
    z-index: 1;
}

.kh-buy-list{
    position: relative;
    z-index: 2;
    overflow: hidden;
    text-align: center;
    font-size: 0;
    padding: 2rem 2rem 8rem 2rem;
}
.kh-buy-list > dt{
    width: 100%;
}
.kh-buy-list > dd{
    display: block;
    float: left;
    background-color: #FFFFFF;
    box-shadow: 0 0 1.6rem rgba(0, 0, 0, 0.16);
    padding: 3.8rem 2.4rem;
    width: 30%;
    margin-top: 11rem;
    margin-right: 5%;
    height: 50rem;
    text-align: left;
    border-radius: 1.2rem;
}
.kh-buy-list > dd:nth-of-type(3n){
    margin-right: 0;
}
.kh-buy-list > dd .kh-buy-title{
    font-size: 2.6rem;
    color: #666666;
    overflow: hidden;
    width: 100%;
}
.kh-buy-title .kh-icon-logo-full{
    font-size: 3.8rem;
}
.kh-buy-title > span{
    display: block;
    float: left;
    padding-right: 1rem;
}
.kh-buy-desc{
    color: #999999;
    font-size: 2rem;
    line-height: 4rem;
    padding-top: 5.2rem;
}

.kh-buy-step{
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 2;
}
.kh-buy-step img{
    max-width: 100%;
}
.kh-buy-step > dt{
    width: 100%;
    font-size: 2rem;
    line-height: 7.3rem;
    color: #666666;
}
.kh-buy-step > dd > span{
    display: block;
    padding-top: 2rem;
    font-size: 1.2rem;
    line-height: 7.3rem;
    color: #666666;
}

.kh-buy-action{
    background: url(../image/background-buy-action.png) no-repeat top left #FFFFFF;
    box-shadow: 0 0 1.6rem rgba(0, 0, 0, 0.16);
    max-width: 44.5rem;
    margin: auto;
    border-radius: 1.2rem;
    padding: 4.2rem 0;
    text-align: center;
}

.kh-buy-action > div{
    font-size: 2rem;
    line-height: 4.8rem;
    color: #666666;
}
.kh-buy-reg,.kh-buy-login{
    color: #FFFFFF;
    display: inline-block;
    padding: 0 2.2rem;
    margin: auto 2rem;
    background-color: #797DFF;
    font-size: 1.6rem;
    line-height: 3.2rem;
    border-radius: 0.8rem;
    box-shadow: 0 0.3rem 0.8rem rgba(0, 0, 0, 0.2);
}
.kh-buy-login{
    color: #797DFF;
    background-color: #FFFFFF;
}
.kh-buy-reg:hover{
    opacity: 0.6;
    color: #FFFFFF;
}
.kh-buy-login:hover{
    opacity: 0.6;
}
.kh-buy-tips{
    margin-top: 2rem;
    padding-bottom: 8rem;
    color: #666666;
    font-size: 1.4rem;
    text-align: center;
}

/*自适应调节*/
@media only screen and (max-width: 1700px){
}
@media only screen and (max-width: 1560px){
}
@media only screen and (max-width: 1420px){
}
/*小于等于1200px时*/
@media only screen and (max-width: 1200px){
}
/*sm屏幕以下（小于等于576px时）*/
@media only screen and (max-width: 720px) {
    .kh-buy-block{ padding: 2rem 0;}
    .kh-buy-list{ padding-bottom: 2rem;}
    .kh-buy-list > dt img{ max-width: 80%;}
    .kh-buy-list > dd{ width: unset; max-width: 100%; height: unset; float: unset; margin: 2rem auto auto auto;}
    .kh-buy-list > dd .kh-buy-title{ font-size: 2.2rem;}
    .kh-buy-desc{ font-size: 1.6rem; line-height: 2.4rem; padding-top: 2rem;}
    .kh-buy-step{ padding-left: 2rem; padding-right: 2rem;}
    .kh-buy-step > dd > span{ line-height: 3.2rem; padding-top: unset;}
    .kh-buy-action{ max-width: calc(100% - 4rem); margin: auto; padding: 2rem 0;}
    .kh-buy-action > div{ font-size: 1.4rem;}
    .kh-buy-reg, .kh-buy-login{ padding-left: 1rem; padding-right: 1rem; margin: auto 1rem; font-size: 1.4rem;}
    .kh-buy-tips{ padding-bottom: 2rem;}
}
@media only screen and (max-width: 414px){
}
@media only screen and (max-width: 366px){
}
/*sm屏幕以上*/
@media only screen and (min-width: 576px) {
}