/* 页脚样式 */
.footer {
    background-color: #f8f9fa;
    padding: 40px 0 20px;
    color: #555;
    border-top: 1px solid #eaeaea;
    margin-top: 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 20px;
}

.footer-section {
    flex: 1;
    min-width: 200px;
    margin-bottom: 20px;
    padding: 0 15px;
}

.footer-section h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 18px;
}

.footer-section h4 {
    color: #444;
    margin-bottom: 12px;
    font-size: 16px;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #007bff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #eaeaea;
    font-size: 14px;
}

.footer-bottom p {
    margin-bottom: 10px;
    color: #777;
}

.footer-bottom a {
    color: #666;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
    color: #007bff;
}