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100%;animation:shimmer 1.6s ease-in-out infinite}.seminar-title-skeleton{height:14px;width:80%;border-radius:4px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.seminar-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:18px;gap:18px}.seminar-card{display:flex;flex-direction:column;background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);overflow:hidden;text-decoration:none;color:inherit;transition:all var(--transition-normal)}.seminar-card:hover{border-color:var(--accent-border);transform:translateY(-3px);box-shadow:var(--shadow-md)}.seminar-thumb{position:relative;width:100%;aspect-ratio:16/9;background:var(--bg-tertiary);overflow:hidden}.seminar-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform var(--transition-slow)}.seminar-card:hover .seminar-thumb img{transform:scale(1.04)}.seminar-play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.18) 60%,rgba(0,0,0,.45));opacity:0;transition:opacity var(--transition-fast)}.seminar-card:hover .seminar-play-overlay{opacity:1}.seminar-play-button{width:52px;height:52px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent-primary);color:white;border-radius:50%;box-shadow:0 8px 24px rgba(0,0,0,.5);padding-left:4px;transform:scale(.85);transition:transform var(--transition-fast)}.seminar-card:hover .seminar-play-button{transform:scale(1)}.seminar-meta{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1 1}.seminar-title{font-size:13.5px;font-weight:600;line-height:1.5;color:var(--text-primary);letter-spacing:-.2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.seminar-card:hover .seminar-title{color:var(--accent-primary)}.seminar-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:auto}.seminar-tag{font-size:10.5px;font-weight:500;color:var(--text-tertiary);background:var(--bg-tertiary);border:1px solid var(--border-secondary);padding:2px 8px;border-radius:10px;letter-spacing:.1px}.seminar-toggle-wrap{display:flex;justify-content:center;margin-top:22px}.seminar-toggle{display:inline-flex;align-items:center;gap:6px;padding:9px 22px;font-size:12.5px;font-weight:600;color:var(--text-secondary);background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);font-family:inherit}.seminar-toggle:hover{color:var(--accent-primary);border-color:var(--accent-border);background:var(--accent-muted)}@media (max-width:900px){.seminar-grid{grid-template-columns:repeat(2,1fr);gap:14px}}@media (max-width:560px){.seminar-grid{grid-template-columns:1fr}}.video-card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-normal)}.video-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.video-frame{position:relative;width:100%;aspect-ratio:16/9;background:#000}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video-meta{padding:20px 24px 22px}.video-title{font-size:15.5px;font-weight:700;color:var(--text-primary);letter-spacing:-.2px;line-height:1.5;margin-bottom:8px}.video-desc{font-size:13px;color:var(--text-tertiary);line-height:1.6;margin-bottom:14px}.video-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}.video-tag{font-size:11px;font-weight:500;color:var(--text-tertiary);background:var(--bg-tertiary);border:1px solid var(--border-secondary);padding:3px 9px;border-radius:12px}.video-ctas{display:flex;flex-wrap:wrap;gap:8px;padding-top:14px;border-top:1px solid var(--border-secondary)}.video-cta{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font-size:12px;font-weight:600;color:var(--text-secondary);background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);transition:all var(--transition-fast);text-decoration:none}.video-cta:hover{color:var(--accent-primary);border-color:var(--accent-border);background:var(--accent-muted)}