.site-nav {
    width: 100%;
    max-width: 19.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.site-nav-menu {
    margin-left: 2.07rem;
    width: 4.68rem;
    height: .64rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-nav .tab {
    width: 1rem;
    height: 1.04rem;
    text-align: center;
    line-height: 1.04rem;
    font-size: .22rem;
    color: #7F818C;
    cursor: pointer;
    position: relative;
    text-decoration: none;
}

.site-nav .tab.is-active {
    color: #fff;
    font-weight: 500;
}

.site-nav .dot {
    height: 0.1rem;
    width: 0.1rem;
    background: #00F7FF;
    border-radius: 50%;
    display: inline-block;
    position: absolute;
    bottom: -0.05rem;
    left: 0.45rem;
    z-index: 1000;
}

.site-nav-toggle {
    display: none;
    border: 0;
    background: transparent;
    padding: 0;
    cursor: pointer;
}

@media screen and (max-width: 768px) {
    .header {
        position: relative;
    }

    .site-nav {
        display: block;
        max-width: none;
        width: 100%;
        position: static;
    }

    .site-nav-toggle {
        display: block;
        margin: 0;
        width: 1.8rem;
        height: 1.45rem;
        position: absolute;
        top: 3.25rem;
        right: 1.2rem;
        z-index: 1002;
    }

    .site-nav-toggle img {
        width: 100%;
        height: 100%;
    }

    .site-nav-menu {
        margin-left: 0;
        width: 7.65rem;
        height: auto;
        display: none;
        position: absolute;
        right: 1.2rem;
        top: calc(100% + 1.2rem);
        border-radius: 1rem;
        background-color: rgb(6, 42, 97);
        flex-direction: column;
        justify-content: flex-start;
        z-index: 1001;
    }

    .site-nav-menu::after {
        content: '';
        position: absolute;
        top: -0.55rem;
        right: 0.55rem;
        border-left: 0.55rem solid transparent;
        border-right: 0.55rem solid transparent;
        border-bottom: 0.55rem solid rgb(6, 42, 97);
        width: 0;
        height: 0;
    }

    .site-nav.is-open .site-nav-menu {
        display: flex;
    }

    .site-nav .tab {
        display: block;
        width: 7.65rem;
        height: 3.9rem;
        line-height: 3.9rem;
        color: #D8D8D8;
        font-size: 1.4rem;
        text-align: center;
    }

    .site-nav .tab + .tab {
        border-top: 0.1rem solid;
        border-image: linear-gradient(to right,
                rgba(255, 255, 255, 0) 0%,
                rgba(255, 255, 255, .5) 25%,
                rgba(255, 255, 255, .5) 75%,
                rgba(255, 255, 255, 0) 100%) 1;
    }

    .site-nav .tab.is-active {
        color: #fff;
    }

    .site-nav .dot {
        height: 0.4rem;
        width: 0.4rem;
        left: 1.1rem;
        top: calc(50% - 0.2rem);
        bottom: auto;
    }
}