.container { max-width: 1200px; margin: 0 auto; padding: 20px; }

.hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 60px 20px; text-align: center; }
.hero h1 { font-size: 2.5rem; margin-bottom: 20px; }
.hero-desc { font-size: 1.1rem; opacity: 0.95; max-width: 800px; margin: 0 auto; }

section { margin: 60px 0; }
section h2 { font-size: 2rem; margin-bottom: 30px; color: #2c3e50; border-bottom: 3px solid #667eea; padding-bottom: 10px; }

.site-intro { background: white; padding: 40px; border-radius: 8px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.site-intro p { font-size: 1.05rem; line-height: 1.8; color: #555; }

.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.video-card { background: white; padding: 24px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); transition: all 0.3s; }
.video-card:hover { transform: translateY(-4px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.video-card h3 { font-size: 1.3rem; margin-bottom: 12px; }
.video-card h3 a { color: #2c3e50; text-decoration: none; }
.video-card h3 a:hover { color: #667eea; }
.video-meta { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.9rem; color: #666; }
.video-meta span { background: #f1f3f5; padding: 4px 10px; border-radius: 4px; }
.video-desc { color: #555; line-height: 1.6; margin-bottom: 16px; }
.read-more { display: inline-block; color: #667eea; text-decoration: none; font-weight: 500; }
.read-more:hover { text-decoration: underline; }

.entrance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.entrance-card { background: white; padding: 32px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.entrance-card h3 { font-size: 1.5rem; margin-bottom: 16px; }
.entrance-card h3 a { color: #2c3e50; text-decoration: none; }
.entrance-card h3 a:hover { color: #667eea; }
.entrance-card p { color: #555; line-height: 1.6; }

.video-list { display: flex; flex-direction: column; gap: 20px; }
.video-item { background: white; padding: 24px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.video-item h3 { font-size: 1.2rem; margin-bottom: 8px; }
.video-item h3 a { color: #2c3e50; text-decoration: none; }
.video-item h3 a:hover { color: #667eea; }
.video-item .video-meta { font-size: 0.9rem; color: #666; margin-bottom: 8px; }
.video-item p { color: #555; line-height: 1.6; }

.more-link { text-align: center; margin-top: 30px; }
.more-link a { color: #667eea; text-decoration: none; font-size: 1.1rem; font-weight: 500; }
.more-link a:hover { text-decoration: underline; }

.detail-page { background: white; min-height: 100vh; }
.detail-header { padding: 40px 0; border-bottom: 2px solid #e9ecef; }
.detail-header h1 { font-size: 2.2rem; color: #2c3e50; margin-bottom: 16px; }
.breadcrumb { color: #666; font-size: 0.9rem; }
.breadcrumb a { color: #667eea; text-decoration: none; }

.basic-info { background: #f8f9fa; padding: 24px; border-radius: 8px; margin: 30px 0; }
.basic-info dl { display: grid; grid-template-columns: 120px 1fr; gap: 12px; }
.basic-info dt { font-weight: 600; color: #495057; }
.basic-info dd { color: #555; }

.one-line { margin: 30px 0; }
.one-line .highlight { font-size: 1.2rem; color: #667eea; font-weight: 500; padding: 20px; background: #f0f7ff; border-left: 4px solid #667eea; border-radius: 4px; }

.summary p, .review p { font-size: 1.05rem; line-height: 1.8; color: #333; }

.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.related-card { background: #f8f9fa; padding: 20px; border-radius: 8px; }
.related-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.related-card h3 a { color: #2c3e50; text-decoration: none; }
.related-card h3 a:hover { color: #667eea; }
.related-card p { font-size: 0.95rem; color: #555; }

.list-page { background: white; min-height: 100vh; padding: 40px 0; }
.list-page h1 { font-size: 2.5rem; color: #2c3e50; margin-bottom: 24px; }
.page-intro { background: #f8f9fa; padding: 24px; border-radius: 8px; margin-bottom: 40px; }
.page-intro p { font-size: 1.05rem; line-height: 1.8; color: #555; }

.year-group { margin: 50px 0; }
.year-group h2 { font-size: 1.8rem; color: #495057; border-bottom: 2px solid #dee2e6; padding-bottom: 12px; margin-bottom: 24px; }

.ranking-list { display: flex; flex-direction: column; gap: 24px; }
.ranking-item { display: flex; background: white; border: 1px solid #e9ecef; border-radius: 8px; padding: 24px; transition: all 0.3s; }
.ranking-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.rank-num { font-size: 2.5rem; font-weight: 700; color: #667eea; min-width: 80px; display: flex; align-items: center; justify-content: center; }
.rank-content { flex: 1; }
.rank-content h3 { font-size: 1.4rem; margin-bottom: 8px; }
.rank-content h3 a { color: #2c3e50; text-decoration: none; }
.rank-content h3 a:hover { color: #667eea; }
.rank-content .meta { color: #666; margin-bottom: 8px; }
.rank-content .tags { color: #667eea; font-size: 0.9rem; margin-bottom: 12px; }
.rank-content .recommend { color: #555; line-height: 1.6; }

.topic-list { display: flex; flex-direction: column; gap: 32px; }
.topic-item { background: white; border: 1px solid #e9ecef; padding: 28px; border-radius: 8px; }
.topic-item h3 { font-size: 1.5rem; margin-bottom: 12px; }
.topic-item h3 a { color: #2c3e50; text-decoration: none; }
.topic-item h3 a:hover { color: #667eea; }
.topic-item .meta { color: #666; margin-bottom: 12px; }
.topic-item .topic-intro { font-size: 1.05rem; line-height: 1.8; color: #555; }

.latest-list { display: flex; flex-direction: column; gap: 20px; }
.latest-item { display: flex; background: white; border: 1px solid #e9ecef; padding: 20px; border-radius: 8px; }
.latest-date { min-width: 120px; font-weight: 600; color: #667eea; font-size: 1.1rem; }
.latest-content { flex: 1; }
.latest-content h3 { font-size: 1.2rem; margin-bottom: 8px; }
.latest-content h3 a { color: #2c3e50; text-decoration: none; }
.latest-content h3 a:hover { color: #667eea; }
.latest-content .meta { color: #666; font-size: 0.9rem; margin-bottom: 8px; }
.latest-content p { color: #555; line-height: 1.6; }

footer { background: #2c3e50; color: white; padding: 40px 20px; margin-top: 60px; }
.footer-content { max-width: 1200px; margin: 0 auto; text-align: center; }
.footer-logo { font-size: 1.8rem; font-weight: 700; margin-bottom: 20px; }
.footer-nav { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
.footer-nav a { color: white; text-decoration: none; }
.footer-nav a:hover { text-decoration: underline; }
.copyright { font-size: 0.9rem; opacity: 0.8; }

@media (max-width: 768px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-desc { font-size: 1rem; }
  section h2 { font-size: 1.5rem; }
  .video-grid { grid-template-columns: 1fr; }
  .entrance-grid { grid-template-columns: 1fr; }
  .detail-header h1 { font-size: 1.6rem; }
  .basic-info dl { grid-template-columns: 100px 1fr; }
  .ranking-item { flex-direction: column; }
  .rank-num { font-size: 2rem; margin-bottom: 12px; }
  .latest-item { flex-direction: column; }
  .latest-date { margin-bottom: 12px; }
}