/* Layout: A */
body { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); background-attachment: fixed; }
main { background: white; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); padding: 30px; }
.hero h1 { font-size: 32px; color: #1a1a1a; margin-bottom: 20px; text-align: center; padding: 40px 20px; }
.intro, .featured, .lists, .latest, .page-header, .video-collection, .video-detail { margin-bottom: 40px; }
h2 { font-size: 24px; color: #1a1a1a; margin-bottom: 20px; border-left: 4px solid #1890ff; padding-left: 12px; }
h3 { font-size: 18px; color: #333; margin-bottom: 10px; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.video-card { background: #fafafa; padding: 20px; border-radius: 6px; transition: all 0.3s; border: 1px solid #e8e8e8; position: relative; }
.video-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.15); transform: translateY(-2px); }
.video-card h3 a { color: #1890ff; font-weight: 600; }
.video-card h3 a:hover { color: #40a9ff; }
.video-card .meta { color: #888; font-size: 13px; margin: 8px 0; }
.video-card .genre { color: #666; font-size: 14px; margin: 6px 0; }
.video-card .desc { color: #555; font-size: 14px; line-height: 1.5; }
.video-card .rank { position: absolute; top: 10px; right: 10px; background: #ff4d4f; color: white; padding: 4px 8px; border-radius: 4px; font-size: 12px; font-weight: bold; }
.video-list { display: flex; flex-direction: column; gap: 15px; }
.video-item { background: #fafafa; padding: 15px 20px; border-radius: 6px; border-left: 3px solid #1890ff; }
.video-item h3 { margin-bottom: 5px; }
.video-item h3 a { color: #1890ff; }
.list-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.list-link { display: block; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px 20px; border-radius: 8px; text-align: center; transition: all 0.3s; }
.list-link:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4); }
.list-link h3 { color: white; font-size: 20px; margin-bottom: 10px; }
.list-link p { color: rgba(255,255,255,0.9); font-size: 14px; }
.more-link { text-align: center; margin-top: 20px; }
.more-link a { color: #1890ff; font-size: 16px; }
.page-header { text-align: center; padding: 30px 20px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border-radius: 8px; margin: -30px -30px 40px -30px; }
.page-header h1 { color: white; font-size: 32px; }
.page-header p { color: rgba(255,255,255,0.9); font-size: 16px; margin-top: 10px; }
.video-detail header { border-bottom: 2px solid #e8e8e8; padding-bottom: 20px; margin-bottom: 30px; }
.video-detail h1 { font-size: 28px; color: #1a1a1a; margin-bottom: 15px; }
.meta-info { display: flex; flex-wrap: wrap; gap: 15px; color: #666; font-size: 14px; }
.meta-info span { background: #f0f0f0; padding: 5px 12px; border-radius: 4px; }
.video-content .highlight { font-size: 18px; color: #1890ff; font-weight: 500; margin-bottom: 20px; padding: 15px; background: #e6f7ff; border-left: 4px solid #1890ff; border-radius: 4px; }
.video-content p { line-height: 1.8; color: #444; margin-bottom: 15px; font-size: 15px; }
.tags { margin-top: 20px; padding-top: 20px; border-top: 1px solid #e8e8e8; }
.tag { display: inline-block; background: #f0f0f0; color: #666; padding: 4px 10px; border-radius: 3px; margin-right: 8px; margin-bottom: 8px; font-size: 13px; }
@media (max-width: 768px) {
  main { padding: 20px; border-radius: 0; }
  .hero h1 { font-size: 24px; padding: 20px 10px; }
  h2 { font-size: 20px; }
  .video-grid { grid-template-columns: 1fr; gap: 15px; }
  .page-header { margin: -20px -20px 30px -20px; padding: 20px 15px; }
  .page-header h1 { font-size: 24px; }
}