/* 页脚区域 - 深色背景 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 700;
    color: white;
}

.footer-logo p {
    opacity: 0.7;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h3,
.footer-contact h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    color: white;
}

.footer-links h3:after,
.footer-contact h3:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 30px;
    height: 2px;
    background-color: #3273dc;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #ddd;
}

.footer-links ul li a:hover {
    color: white;
}

.footer-contact p {
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    margin-right: 10px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: white;
    font-size: 20px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.social-icons a:hover {
    opacity: 1;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.7;
    color: rgba(255, 255, 255, 0.7);
}

.copyright a {
    color: #3273dc;
}

.credits {
    margin-top: 5px;
    font-size: 14px;
}

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

    .footer-links h3:after,
    .footer-contact h3:after {
        left: 50%;
        transform: translateX(-50%);
    }
}