* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    min-width: 320px;
    margin: 0 auto;
    font-family: "PingFang SC"
}

@media screen and (min-width: 320px) {
    html {
        font-size: 37.5px;
    }
}

@media screen and (min-width: 360px) {
    html {
        font-size: 42.19px;
    }
}

@media screen and (min-width: 400px) {
    html {
        font-size: 46.88px;
    }
}

@media screen and (min-width: 440px) {
    html {
        font-size: 51.56px;
    }
}

@media screen and (min-width: 480px) {
    html {
        font-size: 56.25px;
    }
}

@media screen and (min-width: 640px) {
    html {
        font-size: 75px;
    }
}

@media screen and (min-width: 1280px) {
    html {
        font-size: 100px;
    }
}

.nav-bar {
    width: 100%;
    height: .64rem;
    background-color: #fff;
    border-bottom: .01rem solid #F2F2F2;
    display: flex;
    position: sticky;
    top: 0;
    z-index: 10;
}

.icon-logo {
    margin-left: .64rem;
    margin-top: .16rem;
    width: 1.08rem;
    height: .36rem;
}

h1 {
    font-size: .72rem;
    font-weight: 500;
    margin-top: .48rem;
    text-align: center;
}

.grey-p {
    font-size: .20rem;
    font-weight: 400;
    color: #999;
    margin-top: .48rem;
    text-align: center;
    line-height: .32rem;
}

.blue-p {
    font-size: .20rem;
    font-weight: 400;
    color: #1DC8DB;
    text-align: center;
    line-height: .32rem;
}

.download-container {
    display: flex;
    justify-content: space-between;
    width: 3.98rem;
    margin: .48rem auto 0;
}

.btn-download {
    display: flex;
    width: 1.75rem;
    height: .52rem;
    color: #fff;
    background-color: #000;
    border-radius: .16rem;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.media-container {
    display: flex;
    justify-content: center;
    gap: .36rem;
    margin: .36rem auto 0;
    position: relative;
}

.media-icon {
    width: .36rem;
    height: auto;
    cursor: pointer;
}

.phone {
    width: 4.09rem;
    height: 8.31rem;
    border-radius: .56rem;
    background: linear-gradient(to bottom,
        #1DC8DB 0%,
        #1AB1C2 100%
    );
    margin: .64rem auto 0;
    padding: .08rem;
}

.phone-content {
    position: relative;
    width: 3.93rem;
    height: 8.15rem;
    border-radius: .48rem;
    background-color: #fff;
    overflow: hidden;
    z-index: 1;
}

.fixed-content {
    width: 3.93rem;
    height: 8.15rem;
}

.handbook {
    width: 13.66rem;
    height: auto;
    position: absolute;
    top: 1.57rem;
    animation: floatAnimation 30s linear infinite;
}

@keyframes floatAnimation {
    0%, 96%, 100% {
        left: 0px;
    }
    46%, 50% {
        left: -9.89rem;
    }
}

.world {
    width: 9.05rem;
    height: auto;
    position: absolute;
    top: 4.52rem;
    left: -2.56rem;
}

.footer {
    margin: 1.6rem auto .4rem;
    font-size: .14rem;
    color: #999;
    text-align: center;
    line-height: .32rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.beian ,.beian:visited {
    color: #999;
    text-decoration: none;
}

.qrcode-container {
    position: absolute;
    background-color: #f2f2f2;
    padding: .08rem;
    border-radius: .12rem;
    font-size: .11rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    z-index: 9;
    display: flex;
    flex-direction: column;
    align-items: center;
    display: none;
}

.qrcode {
    width: 1.04rem;
    height: auto;
    margin-bottom: .08rem;
    border-radius: .06rem;
}