/* ── 视频工具专题页 ── */

.topic-tools-intro {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 1.2rem;
}

.topic-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.topic-tool-card {
    display: block;
    padding: 1.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fafbfc;
    text-decoration: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.topic-tool-card:hover {
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.topic-tool-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.topic-tool-card:hover .topic-tool-name {
    color: #2563eb;
}

.topic-tool-desc {
    font-size: 0.85rem;
    color: #888;
    line-height: 1.5;
}

@media (max-width: 640px) {
    .topic-tools-grid {
        grid-template-columns: 1fr;
    }
}