/* 可折叠页脚 */
.apple-footer {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px 0 20px 0;
    margin-top: 80px;
    color: #515154;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.footer-column {
    margin-bottom: 20px;
}

.footer-title {
    font-size: 14px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 15px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #d2d2d7;
    transition: color 0.3s;
}

.footer-title:hover {
    color: #0071e3;
}

.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.footer-links-list.expanded {
    max-height: 300px;
}

.footer-link-item {
    margin-bottom: 10px;
}

.footer-link {
    color: #515154;
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #0071e3;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid #d2d2d7;
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-copyright {
    font-size: 12px;
    color: #86868b;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal-link {
    color: #515154;
    text-decoration: none;
    font-size: 12px;
}

.footer-legal-link:hover {
    color: #0071e3;
    text-decoration: underline;
}

.footer-locale {
    display: flex;
    align-items: center;
    color: #515154;
    font-size: 12px;
}

.footer-locale i {
    margin-right: 6px;
}

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

    .footer-column {
        margin-bottom: 10px;
    }

    .footer-title {
        border-bottom: 1px solid #424245;
        padding: 12px 0;
        margin-bottom: 0;
    }

    .footer-links-list {
        padding-left: 10px;
    }

    .footer-link-item {
        margin-bottom: 8px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}