html {
    font-size: 20px;
}

/* @media only screen and (max-width: 1280px) {
    html {
        font-size: 12.8px;
    }
}

@media only screen and (max-width: 1366px) {
    html {
        font-size: 13.66px;
    }
}

@media only screen and (max-width: 1728px) {
    html {
        font-size: 17.28px;
    }
} */

body {
    min-width: 1280px;
}

* {
    margin: 0px;
}

header {
    background: #F5F5F8;
    width: 100rem;
    height: 4.69rem;
}

/* 上下漂浮动画 */
@keyframes float1 {

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

    50% {
        transform: translateY(-2.71rem);
    }
}

@keyframes float2 {

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

    50% {
        transform: translateY(3.25rem);
    }
}

@keyframes float3 {

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

    50% {
        transform: translateY(-3.79rem);
    }
}

@keyframes float4 {

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

    50% {
        transform: translateY(4.34rem);
    }
}

@keyframes float5 {

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

    50% {
        transform: translateY(-4.88rem);
    }
}