body * {
    box-sizing: border-box;
}

img {
    width: 100%;
    height: auto;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-family: sans-serif;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

a {
    color: #fff;
    text-decoration: none;
}

body {
    font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma, Arial, PingFang SC-Light, Microsoft YaHei;
    width: 100%;
    height: 100vh;
    background-color: #000;
    max-width: 750px;
}

.errorbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    display: none;
    z-index: 9999999;
    align-items: center;
    justify-content: center;
}

.error-content {
    padding: 20px;
    line-height: 18px;
    word-break: break-all;
    overflow: hidden;
    font-size: 18px;
    color: #fff;
    background: rgba(0, 0, 0, 0.8);
}

#background-video {
    position: absolute;
    display: block;
    width: 100%;
    margin: auto;
    z-index: -1;
    top: 0;
}

.box {
    position: relative;
    max-width: 720px;
    left: 50%;
    transform: translateX(-50%);
}

.header {
    position: absolute;
    z-index: 10;
    width: 100%;
    height: auto;
    text-align: center;
    margin-top: 5%;
}

.wenan {
    position: absolute;
    z-index: 10;
    width: 90%;
    height: auto;
    margin: 0 auto;
    text-align: center;
    margin-top: 73%;
    left: 5%;
}

.wenan-inner {
    position: relative;
    width: 100%;
}

.wenan-card {
    display: block;
    width: 100%;
}

.aniu-wrap {
    position: absolute;
    bottom: 10%;
    left: 7.5%;
    width: 85%;
}

.aniu-wrap .aniu {
    width: 100%;
}

.end {
    position: absolute;
    z-index: 10;
    width: 100%;
    height: auto;
    text-align: center;
    margin-top: 136%;
}

.footer {
    position: absolute;
    z-index: 10;
    width: 100%;
    height: auto;
    text-align: center;
    margin-top: 220%;
    padding: 0;
}

.footer img {
    display: block;
    width: 85%;
    max-width: 620px;
    margin: 0 auto;
}

@media screen and (min-width: 700px) {
    html {
        display: flex;
        justify-content: center;
    }
}

.aniu {
    margin-top: 0;
    cursor: pointer;
    animation-name: moveButton;
    animation-duration: 1.5s;
    animation-iteration-count: infinite;
}

@keyframes moveButton {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}