footer {
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.footer-column h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 8px;
    color: #343a40;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 2px;
    background: var(--primary);
}

.footer-column p {
    color: #343a40;
    margin-bottom: 20px;
}

.footer-column i {
    color: var(--primary);
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: #343a40;
}

.contact-info i {
    color: var(--primary);
    font-size: 16px;
    width: 20px;
}

.footer-info {
    color: var(--primary);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 40px;
}

.footer-info p {
    color: #343a40;
}

.footer-info i {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.85rem;
    color: #6c757d;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .footer-content,
    .footer-info {
        grid-template-columns: 1fr;
    }
}