/* ========================================
   Footer Styles (Global) — 深色 4 欄 grid 風格
   ======================================== */

.footer {
    background-color: var(--primary-teal);
    color: rgba(255, 255, 255, 0.85);
    padding: 96px 0 36px;
    font-family: var(--font-family-chinese);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 72px;
}

/* Brand */
.footer-brand .footer-logo-img {
    height: 44px;
    width: auto;
    margin-bottom: 24px;
    display: block;
    filter: brightness(0) invert(1);
    /* logo 為深色版時，反白讓深背景上可見 */
}

.footer-brand p {
    margin: 0 0 6px;
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.65);
    max-width: 360px;
}

/* Columns */
.footer-col h5 {
    font-family: var(--font-family-english);
    font-size: 12px;
    letter-spacing: 0.2em;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin: 0 0 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color 0.25s;
}

@media (hover: hover) {
    .footer-col a:hover {
        color: #fff;
    }
}

/* Contact column */
.footer-contact p {
    margin: 0 0 12px;
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.footer-contact p:last-child {
    margin-bottom: 0;
}

.footer-contact .icon {
    width: 16px;
    flex-shrink: 0;
    margin-top: 4px;
    text-align: center;
}

.footer-contact i.icon {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-top: 0;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color 0.25s;
}

@media (hover: hover) {
    .footer-contact a:hover {
        color: #fff;
    }
}

/* Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom .links {
    display: flex;
    gap: 28px;
}

.footer-bottom .links a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.25s;
}

@media (hover: hover) {
    .footer-bottom .links a:hover {
        color: #fff;
    }
}

/* ========================================
   RWD
   ======================================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 60px 0 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 48px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
}