footer {
    min-height: 400px;
    background-color: var(--color-footer);
}

footer span {
    color: #fff;
}

.footer_inner {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 80px 40px 40px 40px;
    margin: auto;
}

/* ロゴ */
a.footer_logo_wrap {
    display: block;
    width: 16%;
    margin-right: 4%;
}

.footer_logo_wrap img {
    display: block;
    margin: auto;
    width: 100%;
}

/* リンク */
.footer_link {
    display: flex;
    flex-direction: row;
    width: 80%;
}

.footer_link_category {
    display: flex;
    flex-direction: column;
    width: 33%;
}

.footer_link_category h4 {
    display: block;
    font-weight: bold;
}

.footer_link_category a {
    display: block;
    padding: 4px 0 4px 1.3rem;
    margin-bottom: 4px;
    text-align: left;
}

.footer_link_category h4,
.footer_link_category a span {
    color: #fff !important;
}

/* コピーライト */
.copyright {
    width: 100%;
    margin-top: 80px;
}

.copyright span {
    display: block;
    text-align: center;
    font-size: 74%;
    color: #fff;
}

/* ランダム文字 */
.rand_letter {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100vw;
}

.rand_letter span {
    display: inline-block;
    min-width: 2%;
    font-size: 60%;
    color: #fff;
    text-align: center;
}

@media screen and (max-width: 768px) {
    .rand_letter span {
        min-width: 4vw;
    }

    .footer_inner {
        flex-direction: column;
    }

    a.footer_logo_wrap,
    .footer_link {
        width: 100%;
    }

    .footer_logo_wrap img {
        width: 80%;
    }

    a.footer_logo_wrap {
        margin-bottom: 40px;
    }

    .footer_link {
        flex-direction: column;
    }

    .footer_link_category {
        width: 100%;
        margin-bottom: 24px;
    }
}