/* ===== 培训管理子页：课程大全（图片卡片网格） ===== */

        .panel-head { margin-bottom: 22px; }

        .train-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

        .train-card {

            display: flex; flex-direction: column; background: var(--bg-white); border: 1px solid var(--border-color);

            border-radius: var(--radius-md); overflow: hidden; text-decoration: none; color: inherit; box-shadow: var(--shadow-sm); transition: var(--transition);

        }

        .train-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--accent-blue); }

        .train-card-img { position: relative; aspect-ratio: 636 / 380; overflow: hidden; background: linear-gradient(135deg, #0a326c 0%, #14529c 60%, #4fa3ff 100%); }

        .train-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.55s ease; }

        .train-card:hover .train-card-img img { transform: scale(1.07); }

        .train-card-type { position: absolute; top: 12px; left: 12px; font-size: 12px; font-weight: 600; color: #fff; background: rgba(9,33,72,0.72); padding: 4px 10px; border-radius: 4px; backdrop-filter: blur(2px); }

        .train-card-body { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }

        .train-card-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-muted); }

        .train-card-org { color: var(--primary-blue); font-weight: 600; }

        .train-card-date { display: inline-flex; align-items: center; gap: 5px; }

        .train-card-title { font-size: 16px; font-weight: 700; color: var(--text-primary); line-height: 1.5; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; transition: color 0.2s ease; }

        .train-card:hover .train-card-title { color: var(--primary-blue); }

        .train-card-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.8; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; }

        @media (max-width: 980px) { .train-cards { grid-template-columns: repeat(2, 1fr); } }

        @media (max-width: 640px) {

            .train-cards { grid-template-columns: 1fr; gap: 16px; }

        }