/* Footer 樣式 */
.footer {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #0d47a1;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #1565c0;
}

.footer-section p {
    margin: 0.5rem 0;
    color: #1976d2;
}

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

.footer-section ul li {
    margin: 0.5rem 0;
}

.footer-section ul li a {
    color: #1976d2;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #0d47a1;
    text-decoration: underline;
}

.footer-social {
    display: flex;
    gap: 1rem;
    font-size: 1.5rem;
}

.footer-social a {
    color: #1976d2;
    text-decoration: none;
    transition: transform 0.3s, color 0.3s;
}

.footer-social a:hover {
    transform: scale(1.2);
    color: #0d47a1;
}

.footer-bottom {
    border-top: 1px solid rgba(21, 101, 192, 0.2);
    padding: 1rem 20px;
    text-align: center;
    color: #1976d2;
}

/* 響應式 */
@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}