.site-footer {
    --footer-text-primary: #1e293b;
    --footer-text-secondary: #64748b;
    --footer-text-muted: #94a3b8;
    --footer-border: #e2e8f0;
    --footer-accent: #ff7f00;
    width: 100%;
    padding: 80px clamp(80px, 5.56vw, 120px) 40px;
    background: #fff;
    color: var(--footer-text-secondary);
    font-family: "Noto Sans JP", var(--font-sans);
}

.site-footer a {
    color: inherit;
    text-decoration: none;
}

.site-footer__content,
.site-footer__bottom {
    width: 100%;
}

.site-footer__content {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 64px;
}

.site-footer__company {
    display: flex;
    flex: 0 0 310px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    min-width: 0;
}

.site-footer__logo {
    display: block;
    width: min(310px, 100%);
}

.site-footer__logo img {
    width: 100%;
    height: 40px;
    object-fit: contain;
    object-position: left center;
}

.site-footer__navigation-area {
    display: flex;
    flex: 0 0 auto;
    flex-direction: column;
    align-items: flex-end;
    gap: 40px;
}

.site-footer__navigation {
    display: grid;
    grid-template-columns: repeat(4, 140px);
    gap: 40px;
    font-size: 14px;
    line-height: normal;
}

.site-footer__navigation-title {
    margin: 0 0 12px;
    color: var(--footer-text-primary);
    font-size: inherit;
    font-weight: 700;
}

.site-footer__navigation-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-footer__navigation-list a,
.site-footer__corporate-link,
.site-footer__legal a {
    transition: color 180ms ease, opacity 180ms ease;
}

.site-footer__navigation-list--primary {
    color: var(--footer-text-primary);
    font-weight: 700;
}

.site-footer__corporate-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--footer-text-secondary);
    font-size: 14px;
    font-weight: 500;
    line-height: normal;
}

.site-footer__corporate-link img {
    width: 12px;
    height: 12px;
}

.site-footer__bottom {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--footer-border);
    color: var(--footer-text-muted);
    font-size: 12px;
    font-weight: 400;
    line-height: normal;
}

.site-footer__copyright {
    margin: 0;
    font-family: var(--font-sans);
}

.site-footer__legal {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

@media (hover: hover) {
    .site-footer__navigation-list a:hover,
    .site-footer__corporate-link:hover,
    .site-footer__legal a:hover {
        color: var(--footer-text-primary);
    }
}

.site-footer a:focus-visible {
    border-radius: 2px;
    outline: 2px solid var(--footer-accent);
    outline-offset: 4px;
}

@media (max-width: 1200px) {
    .site-footer { padding-inline: 48px; }
    .site-footer__content { flex-direction: column; gap: 48px; }
    .site-footer__company { flex-basis: auto; }
    .site-footer__navigation-area { width: 100%; }
    .site-footer__navigation {
        width: 100%;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 24px;
    }
}

@media (max-width: 900px) {
    .site-footer__navigation { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-footer__navigation-area { align-items: flex-start; }
}

@media (max-width: 600px) {
    .site-footer {
        padding: 56px 20px 28px;
    }

    .site-footer__content {
        gap: 48px;
    }

    .site-footer__logo {
        width: min(260px, 100%);
    }

    .site-footer__logo img {
        height: auto;
    }

    .site-footer__navigation {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 36px;
    }

    .site-footer__bottom {
        flex-direction: column-reverse;
        gap: 20px;
        margin-top: 48px;
        padding-top: 24px;
    }

    .site-footer__legal {
        gap: 12px 20px;
    }
}