@media screen and (max-width:640px) {
    body{
        background-color: #6b1f36;
        font-size: 0.24rem !important;
        max-width:580px;
        margin: 0 auto !important;
        position: relative;
    }
    .mobile{
        display: block !important;
        color: #fff;
    }
    .mobile .fixed-bg{
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: #fb729e;
        z-index: 0;
    }
    .mobile .fixed-bg:after{
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 35vh;
        background-color: #6b1f36;;
        z-index: 1;
    }
    .mobile .fixed-bg:before{
        content: '';
        position: absolute;
        left: 0;
        bottom: 34.5vh;
        width: 100%;
        height: 5vh;
        background-image: url("./../image/mobile/bg-border.png");
        z-index: 1;
        background-size: 100% 100%;
        background-position: bottom;
    }
    /* new add */
    header {
        padding: .15rem 0 1rem 0;
    }
    .nav-item img {
        width: .8rem;
    }
    .nav-item img {
        margin-right: 0 !important;
        padding-right: 0.2rem;
    }
    .fixed-decoration{
        position: absolute;
        left: 0;
        top:0;
        width: 100%;
        height: 100%;
        z-index: 0;
    }
    .mobile .fixed-header{
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        box-sizing: border-box;
        height: 1.51rem;
        padding:0 0.37rem;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 1;
    }
    .mobile .fixed-header .left{
        display: flex;
        font-size: 0.4rem;
        align-items: center;
    }
    
    .mobile .fixed-header .left .title{
        font-weight: normal;
        font-size: 0.36rem;
        line-height: 1.7;
    }
    .mobile .fixed-header .left .slogn{
        font-size: 0.24rem;
        color: rgba(255,255,255,0.9);
        letter-spacing: 1px;
    }
    .mobile .fixed-header .left .logo{
        width: 1.08rem;
        height: 1.08rem;
        margin-right: 0.19rem;
    }
    
    .mobile .fixed-header .right{
        display: block;
        color: #fff;
        padding: 0.19rem 0.57rem;
        border-radius: 0.35rem;
        font-size: 0.32rem;
        line-height: 0.24rem;
        background-color: rgba(254,254,254,0.3);
    }
    .mobile .fixed-footer{
        display: flex;
        flex-direction: column;
        align-items: center;
        z-index: 9;
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        padding: 0 0.4rem 0.3rem 0.4rem;
        box-sizing: border-box;
        font-size: 0.24rem;
        background: #6b1f36;
        pointer-events: none;
        text-align: center;
    }
    .mobile .download-box{
        display: flex;
        align-items: center;
        justify-content: center;
        pointer-events: none;
        margin-bottom: 0.2rem;
    }
    #fullpage_mb {
        width: 100vw;
        height: 100%;
    }
    .mobile .download-btn{
        pointer-events: auto;
        width: 4.6rem;
        margin: 0 0.3rem;
        /*display: none;*/
    }

    .mobile .download-btn

    .mobile .arrow-down{
        pointer-events: auto;
        transition: opacity 0.2s;
        position: absolute;
        bottom: 0.21rem;
        width: 0.34rem;
        height: 0.28rem;
        left: 50%;
        transform: translateX(-50%);
    }
    .mobile .download-btn a{
        width: 100%;
        height: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        color: #fff;
        border-radius: 0.45rem;
        background: linear-gradient(90deg,#FF6130,#FF4870);
        padding: 0.2rem;
        margin-bottom: 0.2rem;
    }
    .mobile  .download-btn#downloadBtn-iosSign:nth-child(2) a{
        background: #722bff;
    }
    .mobile .download-btn a .iconfont{
        margin-right: 0.1rem;
        position: relative;
        top: -0.02rem;
    }
    .mobile .download-btn img{
        width: 100%;
        height: 100%;
    }
    .mobile .subject{
        font-size: 2.5vh;
        color: #fef333;
        font-weight: bold;
        text-align: center;
        padding-bottom: 1vh;
    }
    .mobile .subject img{
        width: 2.7rem;
    }
    .mobile .main-wrap{
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        align-content: center;
        flex-wrap: wrap;
        text-align: center;
    }
    .mobile .main-inner{
        padding-top: 1.5rem;
    }
    
    .section .main .center{
        display: flex;
        justify-content: center;
        max-height: 60vh;
        overflow: hidden;
        margin-bottom: 5vh;
    }
    .mobile .phone{
        display: inline-block;
        position: relative;
        min-width: 1px;
        height: 8rem;
        z-index: 1;
        background-size: 100%;
    }
    .phone-wrap{
        pointer-events: none;
    }
    .mobile .phone .phone-content{
        display: inline-block;
        min-width: 1px;
        width: 4rem;
        z-index: 10;
    }
    .android-doc-btn{
        pointer-events: auto;
        text-align: center;
        color: #f1f1f1;
        display: block;
        width: max-content;
    }
    .tips{
        font-size: 0.2rem;
        line-height: 1.5;
        z-index: 2;
        color: rgba(255,255,255,0.8);
        margin-bottom: 0.2rem;
        position: relative;
        padding: 0.15rem;
        border-radius: 0.3rem;
        background-color: rgb(0,0,0);
        overflow: hidden;
        text-align: center;
    }
    
    .tips p{
        white-space: nowrap;
        font-size: 0.2rem;
        transform-origin: center;
        text-align: center;
        text-indent: 0;
    }
    
    .section.active .ts-left{
        animation: 0.75s left 0.3s both;
    }
    @keyframes left {
        from {transform: translateX(80%)}
        to {transform: translateX(0)}
    }
    .section.active .ts-fade {
        animation: 0.75s fade 0.8s both;
    }
    @keyframes fade {
        from {opacity: 0}
        to {opacity: 1}
    }
    .section.active .ts-rotation1 {
        animation: 0.6s rotation1 0.6s both;
        transform-origin: bottom;
    }
    @keyframes rotation1 {
        from {transform: rotate(-11deg)}
        to {transform: rotate(0deg)}
    }
    
    
    @keyframes scale
    {
        from {transform: scale(1)}
        to {transform: scale(1.05)}
    }
    
    .decoration{
        position: absolute;
        z-index: 0;
        transition: 0.2s opacity;
        opacity: 0;
    }
    .decoration.decoration-left{
        left: 0;
        bottom: 30vh;
        height: 60vh;
        max-height: 9rem;
    }
    .decoration.decoration-right{
        right: 0;
        top: 6vh;
        height: 52vh;
        max-height: 9rem;
    }
    .section-2.decoration.decoration-left{
        bottom: 35vh;
        height: 50vh;
    }
    .section-2.decoration.decoration-right{
        bottom: 32vh;
        height: 55vh;
    }
    .section-3.decoration.decoration-left{
        bottom: 32vh;
        height: 50vh;
        top: auto;
    }
    .section-3.decoration.decoration-right{
        top: 5vh;
        height: 56vh;
        max-height: 8rem;
    }
    .active.decoration.decoration-left{
        animation: 0.8s slideInLeft 0.2s both;
        opacity: 1;
    }
    .active.decoration.decoration-right{
        animation: 0.8s slideInRight 0.2s both;
        transform: translateX(0);
        opacity: 1;
    }
    
    @keyframes slideInLeft {
        0%{
            transform: translateX(-100%);
        }
        100%{
            transform: translateX(0);
        }
    }
    @keyframes slideInRight {
        0%{
            transform: translateX(100%);
        }
        100%{
            transform: translateX(0);
        }
    }
    /* 动画 */
    @keyframes fadeIn {
        from {opacity: 0}
        to {opacity: 1}
    }
    @keyframes fadeScaleIn {
        from {
            transform: scale(0);
            opacity: 0
        }
        to {
            transform: scale(1);
            opacity: 1
        }
    }
    
    /* cover fullpage */
    #fp-nav.right{
        right: 10px;
    }
    #fp-nav ul li, .fp-slidesNav ul li{
        height: auto;
    }
    #fp-nav ul li a, .fp-slidesNav ul li a {
        display: contents;
    }
    #fp-nav ul li a span, .fp-slidesNav ul li a span{
        position: relative;
        display: block;
        background: #fff;
        font-size: 0;
        text-indent: -1000px;
        width: 7px;
        height: 7px;
        margin: 0 !important;
        border: 1px solid transparent;
    }
    #fp-nav ul li a.active span, #fp-nav ul li:hover a.active span, .fp-slidesNav ul li a.active span, .fp-slidesNav ul li:hover a.active span{
        background: #fb729e;
        border-color: #fff;
    }
    #fp-nav ul li a span.fp-sr-only, .fp-slidesNav ul li a span.fp-sr-only{
        position: absolute;
    }
    #fp-nav ul li a.active span, #fp-nav ul li:hover a.active span, .fp-slidesNav ul li a.active span, .fp-slidesNav ul li:hover a.active span{
        height: 45px;
        width: 7px;
        margin: -6px 0 0 -6px;
        border-radius: 9px;
    }
    
    #ios-mask{display: none;width: 100vw;height: 100vh;background-color: rgba(0,0,0,.3);position: fixed;top: 0;left: 0;}
    
    #ios-mask .modal{width: 80vw;height: 20vh;position: absolute;left: 10vw;top: 30vh;background-color: #1ab3fa;border-radius: 20px;}
    #ios-mask .modal .close{position: absolute;top: 10px;right: 10px;width: 35px;height: auto;}
    #ios-mask .modal .content{padding: 20px 30px;display: flex;align-items: center;}
    #ios-mask .modal .content h2{margin: 0;color: #fff;font-weight: 500;}
    #ios-mask .modal .content p{margin: 0 0 10px 0;color: #fff;}
    #ios-mask .modal img{width: 50px;height: 50px;margin-right: 20px;}
    #ios-mask .modal .copy{width: 100%;height: 90px;border-bottom-right-radius: 20px;border-bottom-left-radius: 20px;background-color: #fff;overflow: hidden;}
    #ios-mask .modal .address{width: 65vw;height: 50px;border-radius: 25px;overflow: hidden;margin: 0 auto;background-color: #f4f4f4;display: flex;margin-top: 20px;}
    #ios-mask .modal .address span:nth-of-type(1){display: block;width: 80%;line-height: 50px;padding-left: 10px;box-sizing: border-box;}
    #ios-mask .modal .address span:nth-of-type(2){display: block;width: 20%;text-align: center;line-height: 50px;background-color: #3b8df9;color: #fff;}
    
}