header
{
    position: fixed;
    top: 0;
    left: 0;
    padding: 0 40px;
    background: var(--theme-color);
    width: 100%;
    box-sizing: border-box;
    z-index: 20;
    /* border-bottom: 3px solid white; */
}

header .logo
{
    color: #fff;
    height: 50px;
    line-height: 50px;
    font-size: 24px;
    float: left;
    font-weight: bold;
}

header nav
{
    float: right;
}

header nav ul
{
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

header nav ul li
{
    list-style: none;
    position: relative;
}

header nav ul li .active
{
    background-color: var(--hover-eff);
}

header nav ul li .arrow
{
    margin-left: 4px;
    object-fit: contain;
    width: 10px;
    height: 10px;
    fill: #fff;
    line-height: 50px;
}

header nav ul li ul
{
    position: absolute;
    left: 0;
    background: #2caeff;
    display: none;
}

header nav ul li:hover ul
{
    display: block;
}

header nav ul li ul li
{
    display: block;
    width: 200px;
}

header nav ul li a
{
    font-size: 17px;
    height: 50px;
    line-height: 50px;
    padding: 0 20px;
    color: #fff;
    text-decoration: none;
    display: block;
    transition: 0.1s ease-in-out;
}

header nav ul li a:hover,
header nav ul li a.active
{
    color: #fff;
    background: var(--hover-eff);
}

.menu
{
    object-fit: contain;
    width: 24px;
    height: 24px;
    fill: #fff;
}

.menu-toggle
{
    float: right;
    line-height: 50px;
    cursor: pointer;
    display: none;
}

@media (max-width: 1070px)
{
    header
    {
        position: fixed;
        padding: 0 20px;
    }
    .menu-toggle
    {
        display: block;
    }
    header nav
    {
        position: absolute;
        width: 100%;
        min-height: calc(100vh - 50px);
        background: var(--theme-color);
        top: 50px;
        left: -100%;
        transition: 0.1s;
    }
    header nav.active
    {
        left: 0;
    }
    header nav ul
    {
        display: block;
        text-align: center;
    }
    header nav ul li a 
    {
        border-bottom: 1px solid rgba(0, 0, 0, .2);
    }

    header nav ul li ul
    {
        position: relative;
    }
    header nav ul li ul li
    {
        width: 100%;
    }
}