/* ============================================
   SEO 样式: 页脚、相关工具、FAQ
   ============================================ */

/* ── 相关工具区块 ── */
.related-tools {
    max-width: 800px;
    margin: 48px auto 0;
    padding: 24px;
    background: var(--gray-50);
    border-radius: 16px;
}

.related-tools h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 16px;
    text-align: center;
}

.related-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.related-tool-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    text-decoration: none;
    color: var(--gray-700);
    transition: all 0.2s;
}

.related-tool-card:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.related-tool-icon {
    font-size: 28px;
    line-height: 1;
}

.related-tool-name {
    font-size: 13px;
    font-weight: 500;
    text-align: center;
}

/* ── FAQ 区块 ── */
section.faq {
    max-width: 800px;
    margin: 32px auto 0;
}

section.faq > h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 16px;
}

section.faq .note {
    margin: 0;
}

section.faq h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0 0 12px;
}

/* ── 页脚 ── */
.site-footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    margin-top: 60px;
    padding: 48px 24px 24px;
    color: var(--gray-700);
    font-size: 14px;
}

.site-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr repeat(4, 1fr);
    gap: 32px;
}

.site-footer-col {
    min-width: 0;
}

.site-footer-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 12px;
}

.site-footer-desc {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}

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

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

.site-footer-list a {
    color: var(--gray-600);
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer-list a:hover {
    color: var(--primary);
}

.site-footer-bottom {
    max-width: 1200px;
    margin: 32px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
    text-align: center;
    color: var(--gray-500);
    font-size: 13px;
}

.site-footer-bottom a {
    color: var(--gray-600);
    text-decoration: none;
}

.site-footer-bottom a:hover {
    color: var(--primary);
}

.site-footer-privacy {
    margin: 8px 0 0;
    color: var(--gray-500);
}

/* ── 响应式 ── */
@media (max-width: 900px) {
    .site-footer-inner {
        grid-template-columns: repeat(2, 1fr);
    }
    .related-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .site-footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .site-footer {
        padding: 32px 16px 16px;
    }
    .related-tools-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ── 信任提示条 ── */
.trust-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
    padding: 12px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 13px;
    color: var(--gray-600);
}

.trust-bar-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* ── 夜间模式适配 ── */
[data-theme="dark"] .site-footer {
    background: var(--gray-100);
    border-top-color: var(--gray-200);
}

[data-theme="dark"] .site-footer-list a,
[data-theme="dark"] .site-footer-bottom a,
[data-theme="dark"] .site-footer-bottom,
[data-theme="dark"] .site-footer-privacy {
    color: var(--gray-500);
}

[data-theme="dark"] .related-tools {
    background: var(--gray-100);
}

[data-theme="dark"] .related-tool-card {
    background: var(--gray-50);
    border-color: var(--gray-200);
}

[data-theme="dark"] .related-tool-card:hover {
    background: var(--gray-200);
}