/**
 * Footer SEO 样式 (P0-2: 从 index.html 内联 <style> 提取)
 *
 * GEO/SEO 内容：对人类用户永远隐藏，AI 爬虫仍会解析 HTML 源码进行索引
 */

.site-footer {
    display: none;
}

.site-footer {
    background: var(--bg-secondary, #1a1a1a);
    border-top: 1px solid var(--border-color, #2a2a2a);
    padding: 40px 20px 20px;
    margin-top: 40px;
    color: var(--text-secondary, #888);
    font-size: 14px;
}

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

.footer-brand {
    text-align: center;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-primary, #e0e0e0);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.footer-desc {
    color: var(--text-secondary, #888);
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color, #2a2a2a);
}

.footer-section h3 {
    color: var(--text-primary, #e0e0e0);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

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

.footer-section a,
.footer-section span {
    color: var(--text-secondary, #888);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: var(--accent-color, #10a37f);
}

.footer-bottom {
    text-align: center;
}

.footer-copyright {
    color: var(--text-secondary, #888);
    margin-bottom: 8px;
}

.footer-disclaimer {
    color: var(--text-tertiary, #666);
    font-size: 12px;
}

@media (max-width: 768px) {
    .footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}