.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.hero { text-align: center; padding: 40px 20px; background: #fff; border-radius: 8px; margin-bottom: 30px; }
.hero h1 { font-size: 28px; margin-bottom: 15px; color: #222; }
.hero-desc { font-size: 16px; color: #666; line-height: 1.8; max-width: 900px; margin: 0 auto; }
.section { background: #fff; border-radius: 8px; padding: 30px; margin-bottom: 30px; }
.section-title { font-size: 24px; margin-bottom: 10px; border-left: 4px solid #0066cc; padding-left: 15px; }
.section-intro { color: #666; margin-bottom: 20px; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-bottom: 20px; }
.video-card { background: #f9f9f9; border-radius: 6px; padding: 20px; transition: transform 0.2s, box-shadow 0.2s; }
.video-card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.video-card h3 { font-size: 18px; margin-bottom: 8px; }
.video-card h3 a { color: #333; }
.video-meta { color: #999; font-size: 14px; margin-bottom: 10px; }
.video-desc { color: #666; font-size: 14px; line-height: 1.6; }
.video-list { display: flex; flex-direction: column; gap: 15px; }
.rank { display: inline-block; background: #ff6b6b; color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 12px; margin-right: 8px; }
.more-link { text-align: center; margin-top: 20px; }
.more-link a { color: #0066cc; font-weight: 500; }
.page-intro { background: #f0f8ff; padding: 15px 20px; border-radius: 6px; margin-bottom: 20px; color: #555; }
.detail { background: #fff; border-radius: 8px; padding: 40px; }
.detail h1 { font-size: 30px; margin-bottom: 30px; border-bottom: 2px solid #eee; padding-bottom: 15px; }
.detail-section { margin-bottom: 30px; }
.detail-section h2 { font-size: 20px; margin-bottom: 15px; color: #333; }
.info-list { list-style: none; }
.info-list li { padding: 8px 0; border-bottom: 1px solid #f0f0f0; }
.highlight { font-size: 18px; color: #0066cc; font-weight: 500; line-height: 1.8; padding: 15px; background: #f0f8ff; border-radius: 6px; }
.summary { font-size: 16px; line-height: 1.8; color: #555; text-align: justify; }
.review { font-size: 15px; line-height: 1.8; color: #666; background: #fffbf0; padding: 20px; border-radius: 6px; border-left: 4px solid #ffa500; }
.footer { text-align: center; padding: 30px 20px; color: #999; font-size: 14px; }
@media (max-width: 768px) {
  .hero h1 { font-size: 22px; }
  .hero-desc { font-size: 14px; }
  .video-grid { grid-template-columns: 1fr; }
  .detail { padding: 20px; }
  .detail h1 { font-size: 24px; }
}