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

.intro-section, .hot-section, .topic-section, .latest-section,
.list-header, .list-content, .detail-page {
  background: #fff;
  margin-bottom: 24px;
  padding: 24px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

h1 { font-size: 28px; margin-bottom: 16px; color: #202124; }
h2 { font-size: 22px; margin-bottom: 12px; color: #202124; border-bottom: 2px solid #1a73e8; padding-bottom: 8px; }
h3 { font-size: 18px; margin-bottom: 8px; }

.section-desc, .page-intro { color: #5f6368; margin-bottom: 20px; line-height: 1.8; }

.video-grid, .related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.video-card, .related-card {
  padding: 16px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  transition: all 0.2s;
}

.video-card:hover, .related-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transform: translateY(-2px);
}

.video-meta, .related-meta, .item-meta {
  color: #5f6368;
  font-size: 14px;
  margin: 8px 0;
}

.video-intro, .related-intro, .item-intro {
  color: #202124;
  font-size: 14px;
  line-height: 1.6;
}

.list-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  transition: background 0.2s;
}

.list-item:hover { background: #f8f9fa; }

.list-item.list-top .item-rank {
  font-size: 32px;
  font-weight: bold;
  color: #1a73e8;
  min-width: 50px;
  text-align: center;
}

.list-item.list-topic .item-genre {
  background: #e8f0fe;
  color: #1967d2;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  min-width: 80px;
  text-align: center;
  align-self: flex-start;
}

.list-item.list-latest .item-year {
  background: #f1f3f4;
  color: #5f6368;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  min-width: 60px;
  text-align: center;
  align-self: flex-start;
}

.item-content { flex: 1; }

.item-tags {
  color: #1967d2;
  font-size: 13px;
  margin: 8px 0;
}

.item-review {
  color: #5f6368;
  font-size: 13px;
  font-style: italic;
  margin-top: 8px;
  padding-left: 12px;
  border-left: 3px solid #e8f0fe;
}

.detail-header { margin-bottom: 24px; }

.detail-info .info-list {
  list-style: none;
  line-height: 2;
}

.detail-info .info-list strong {
  color: #5f6368;
  margin-right: 8px;
}

.detail-oneline {
  background: #e8f0fe;
  padding: 20px;
  border-radius: 6px;
  margin: 24px 0;
}

.oneline-text {
  font-size: 16px;
  color: #1967d2;
  font-weight: 500;
}

.summary-text p, .review-text p {
  margin-bottom: 12px;
  line-height: 1.8;
}

@media (max-width: 767px) {
  .container { padding: 12px; }
  .intro-section, .hot-section, .topic-section, .latest-section,
  .list-header, .list-content, .detail-page { padding: 16px; margin-bottom: 16px; }
  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
  .video-grid, .related-grid { grid-template-columns: 1fr; gap: 12px; }
  .list-item { flex-direction: column; padding: 16px; }
  .list-item.list-top .item-rank { font-size: 24px; min-width: auto; }
}