.container { max-width: 1200px; margin: 0 auto; padding: 2rem 1rem; }
.hero { text-align: center; padding: 3rem 1rem; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border-radius: 8px; margin-bottom: 2rem; }
.hero h1 { font-size: 2rem; margin-bottom: 1rem; }
.intro { font-size: 1rem; line-height: 1.8; margin: 1rem 0; color: #f5f5f5; }
.section { margin: 3rem 0; background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.section h2 { font-size: 1.5rem; margin-bottom: 1.5rem; color: #2c3e50; border-left: 4px solid #e74c3c; padding-left: 1rem; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; margin-bottom: 1rem; }
.video-card { padding: 1.5rem; border: 1px solid #e0e0e0; border-radius: 6px; transition: all 0.3s; background: #fafafa; }
.video-card:hover { transform: translateY(-4px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); border-color: #e74c3c; }
.video-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.video-card h3 a { color: #2c3e50; }
.video-card h3 a:hover { color: #e74c3c; }
.meta { color: #7f8c8d; font-size: 0.85rem; margin: 0.5rem 0; }
.oneline { font-size: 0.9rem; color: #555; line-height: 1.6; }
.more-link { text-align: center; margin-top: 1.5rem; font-size: 1rem; }
.more-link a { color: #3498db; margin: 0 0.5rem; }
.page-header { text-align: center; padding: 2rem 1rem; background: white; border-radius: 8px; margin-bottom: 2rem; }
.page-header h1 { font-size: 1.8rem; color: #2c3e50; margin-bottom: 1rem; }
.list-section { background: white; padding: 2rem; border-radius: 8px; }
.video-list { display: flex; flex-direction: column; gap: 1.5rem; }
.video-item { padding: 1.5rem; border: 1px solid #e0e0e0; border-radius: 6px; transition: all 0.3s; position: relative; }
.video-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); border-color: #3498db; }
.video-item h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.video-item.with-rank h3 { padding-left: 3rem; }
.video-item .rank { position: absolute; left: 1rem; top: 1.5rem; font-size: 1.5rem; font-weight: bold; color: #e74c3c; }
.video-item .date { display: inline-block; background: #3498db; color: white; padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.85rem; margin-bottom: 0.5rem; }
.video-item .genre { display: inline-block; background: #9b59b6; color: white; padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.85rem; margin-bottom: 0.5rem; }
.video-item .summary { font-size: 0.9rem; color: #555; line-height: 1.6; margin-top: 0.5rem; }
.detail { background: white; padding: 2rem; border-radius: 8px; }
.detail h1 { font-size: 2rem; color: #2c3e50; margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 2px solid #e0e0e0; }
.info-section, .oneline-section, .summary-section, .review-section, .related-section { margin: 2rem 0; }
.info-section h2, .oneline-section h2, .summary-section h2, .review-section h2, .related-section h2 { font-size: 1.3rem; color: #34495e; margin-bottom: 1rem; border-left: 4px solid #3498db; padding-left: 1rem; }
.info-list { list-style: none; }
.info-list li { padding: 0.5rem 0; border-bottom: 1px solid #f0f0f0; }
.info-list li:last-child { border-bottom: none; }
.highlight { font-size: 1.1rem; color: #2c3e50; padding: 1rem; background: #ecf0f1; border-left: 4px solid #e74c3c; line-height: 1.8; }
.summary-text, .review-text { font-size: 1rem; line-height: 1.8; color: #444; text-align: justify; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.5rem; }
.related-card { padding: 1rem; border: 1px solid #e0e0e0; border-radius: 6px; transition: all 0.3s; }
.related-card:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
.related-card h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.footer { text-align: center; padding: 2rem 1rem; background: #2c3e50; color: white; margin-top: 3rem; }
@media (max-width: 768px) {
  .container { padding: 1rem 0.5rem; }
  .hero { padding: 2rem 1rem; }
  .hero h1 { font-size: 1.5rem; }
  .section { padding: 1.5rem 1rem; }
  .video-grid { grid-template-columns: 1fr; gap: 1rem; }
  .related-grid { grid-template-columns: 1fr; }
  .detail { padding: 1.5rem 1rem; }
  .detail h1 { font-size: 1.5rem; }
}