* {
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

html {
    max-width: 640px;
    margin: 0 auto;
}

body {
    font-family: "PingFangSC-Regular", "sans-serif", "STHeitiSC-Light", "微软雅黑", "Microsoft YaHei";
    font-size: 64px;
    line-height: 1.5em;
    color: #212121;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    touch-callout: none;
}

html,
body,
.page_box {
    width: 100%;
    height: 100%;
    position: relative;
    /* overflow: hidden; */
}

.page {
    /* display: flex;
    justify-content: center;
    align-items: center; */
    /* border: 1px solid red; */
    width: 100%;
    /* height: 100%; */
    position: absolute;
    left: 0;
    top: 0;
    /* overflow-y: scroll; */
}
.page1{
    /* background: url(https://huaban.com/img/mobile/bg.png) no-repeat center #333; */
    background-size: cover;
    z-index: 1000;
    width: 100%;
    height: 100vh;
    /* position: absolute;
    top: 0;
    left: 0; */
   
}
.noscroll{
    position: fixed;
}

.page2{
   
    overflow-y:scroll;
    z-index: 50;
    /* position: absolute;
    top: 0;
    left: 0; */
}
.page>div {
    /* width: 100%;
    height: 100%; */
}

.page.hide {
    display: none;
}

/*==================================*/

.page.inTop {
    -webkit-animation: ShowTop .5s ease-out both;
    animation: ShowTop .5s ease-out both;
}

.page.outTop {
    -webkit-animation: HideTop .5s ease-out both;
    animation: HideTop .5s ease-out both;
}

.page.inDown {
    -webkit-animation: ShowDown .5s ease-out both;
    animation: ShowDown .5s ease-out both;
}

.page.outDown {
    -webkit-animation: HideDown .5s ease-out both;
    animation: HideDown .5s ease-out both;
}

@-webkit-keyframes ShowTop {
    0% {
        -webkit-transform: translateY(100%);
    }

    100% {
        -webkit-transform: translateY(0);
    }
}

@keyframes ShowTop {
    0% {
        transform: translateY(100%);
    }

    100% {
        transform: translateY(0);
    }
}

@-webkit-keyframes HideTop {
    0% {
        -webkit-transform: translateY(0);
    }

    100% {
        -webkit-transform: translateY(-100%);
    }
}

@keyframes HideTop {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(-100%);
    }
}

@-webkit-keyframes ShowDown {
    0% {
        -webkit-transform: translateY(-100%);
    }

    100% {
        -webkit-transform: translateY(0);
    }
}

@keyframes ShowDown {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(0);
    }
}

@-webkit-keyframes HideDown {
    0% {
        -webkit-transform: translateY(0);
    }

    100% {
        -webkit-transform: translateY(100%);
    }
}

@keyframes HideDown {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(100%);
    }
}
.arrow {
    width: 246px;
    height: 56px;
    line-height: 56px;
    text-align: center;
    font-size: 40px;
    color: #fff;
    position: absolute;
    left: 208px;
    bottom: 10px;
}