.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.main { min-height: calc(100vh - 140px); padding: 20px 0; }

.hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 60px 20px; text-align: center; }
.hero h1 { font-size: 32px; margin-bottom: 20px; }
.hero-desc { font-size: 16px; line-height: 1.8; margin-bottom: 15px; opacity: 0.95; }
.hero-tags { font-size: 14px; opacity: 0.85; }

.intro-section { background: white; padding: 40px 20px; margin: 20px 0; border-radius: 8px; }
.intro-section h2 { font-size: 24px; margin-bottom: 20px; color: #d32f2f; }
.intro-section p { margin-bottom: 15px; line-height: 1.8; }
.quick-links { display: flex; gap: 15px; margin-top: 30px; flex-wrap: wrap; }
.quick-links a { background: #d32f2f; color: white; padding: 12px 24px; border-radius: 6px; font-weight: 500; transition: all 0.3s; }
.quick-links a:hover { background: #b71c1c; transform: translateY(-2px); }

.list-section { padding: 40px 20px; }
.list-section.alt { background: white; }
.list-section h2 { font-size: 28px; margin-bottom: 30px; color: #333; border-left: 4px solid #d32f2f; padding-left: 15px; }

.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.video-card { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); transition: all 0.3s; }
.video-card:hover { transform: translateY(-5px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.video-card h3 { font-size: 18px; margin-bottom: 10px; color: #333; }
.video-card h3 a { color: #d32f2f; }
.video-card .meta { font-size: 13px; color: #666; margin-bottom: 8px; }
.video-card .genre { font-size: 13px; color: #888; margin-bottom: 10px; }
.video-card .one-line { font-size: 14px; line-height: 1.6; color: #555; }

.category-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.cat-item { background: #f9f9f9; padding: 30px; border-radius: 8px; border-left: 4px solid #d32f2f; }
.cat-item h3 { font-size: 20px; margin-bottom: 15px; }
.cat-item h3 a { color: #d32f2f; }
.cat-item p { color: #666; line-height: 1.6; }

.page-header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 50px 20px; }
.page-header h1 { font-size: 32px; margin-bottom: 20px; }
.page-desc { font-size: 16px; line-height: 1.8; opacity: 0.95; }

.list-content { padding: 40px 20px; }
.video-list { display: flex; flex-direction: column; gap: 20px; }
.video-list .video-card { position: relative; }
.video-list .video-card .rank { position: absolute; top: 10px; left: 10px; background: #d32f2f; color: white; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 16px; }
.video-list .video-card .number { position: absolute; top: 10px; right: 10px; background: #666; color: white; padding: 4px 12px; border-radius: 12px; font-size: 12px; }
.video-list .video-card .date { position: absolute; top: 10px; right: 10px; background: #4caf50; color: white; padding: 4px 12px; border-radius: 12px; font-size: 12px; }

.genre-group { margin-bottom: 50px; }
.genre-title { font-size: 24px; color: #d32f2f; margin-bottom: 20px; border-bottom: 2px solid #d32f2f; padding-bottom: 10px; }

.detail-page { background: white; padding: 40px 20px; min-height: 100vh; }
.detail-page h1 { font-size: 36px; margin-bottom: 30px; color: #333; border-bottom: 3px solid #d32f2f; padding-bottom: 15px; }
.detail-page h2 { font-size: 24px; margin: 30px 0 20px; color: #d32f2f; }
.info-list { list-style: none; }
.info-list li { padding: 10px 0; border-bottom: 1px solid #eee; line-height: 1.8; }
.info-list li strong { color: #666; margin-right: 10px; }
.highlight { font-size: 18px; line-height: 1.8; color: #d32f2f; font-weight: 500; padding: 20px; background: #fff3f3; border-radius: 8px; }
.summary { font-size: 16px; line-height: 2; color: #333; text-align: justify; }
.review { font-size: 15px; line-height: 1.8; color: #555; background: #f9f9f9; padding: 20px; border-radius: 8px; border-left: 4px solid #4caf50; }

.footer { background: #333; color: white; padding: 30px 20px; text-align: center; margin-top: 40px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }

@media (max-width: 768px) {
  .hero h1 { font-size: 24px; }
  .hero-desc { font-size: 14px; }
  .intro-section h2, .list-section h2 { font-size: 20px; }
  .video-grid { grid-template-columns: 1fr; }
  .quick-links { flex-direction: column; }
  .quick-links a { text-align: center; }
  .detail-page h1 { font-size: 28px; }
  .category-links { grid-template-columns: 1fr; }
}