.intro, .featured, .rankings, .latest, .category-section, .detail section {
  background: white;
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #2c3e50;
  border-bottom: 3px solid #667eea;
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #34495e;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

h3 a {
  color: #667eea;
  text-decoration: none;
  transition: color 0.3s;
}

h3 a:hover {
  color: #764ba2;
}

.intro-text, .page-intro {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
}

.topic-intro {
  font-size: 1.05rem;
  line-height: 2;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.video-card {
  padding: 1.5rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.meta {
  color: #888;
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

.summary, .brief {
  color: #666;
  line-height: 1.7;
  margin-top: 0.5rem;
}

.entry-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.entry-card {
  padding: 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s;
}

.entry-card:hover {
  transform: scale(1.05);
}

.entry-card h3 a {
  color: white;
  font-size: 1.4rem;
}

.video-list, .latest-list {
  margin-top: 1.5rem;
}

.video-item, .list-item, .topic-item, .latest-item {
  padding: 1.5rem;
  border-bottom: 1px solid #eee;
  transition: background 0.3s;
}

.video-item:hover, .list-item:hover, .topic-item:hover, .latest-item:hover {
  background: #f9f9f9;
}

.more-link {
  text-align: center;
  margin-top: 2rem;
}

.more-link a {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: #667eea;
  color: white;
  text-decoration: none;
  border-radius: 25px;
  transition: background 0.3s;
}

.more-link a:hover {
  background: #764ba2;
}

.ranking-list {
  margin-top: 1.5rem;
}

.ranking-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  border-bottom: 1px solid #eee;
  transition: background 0.3s;
}

.ranking-item:hover {
  background: #f9f9f9;
}

.rank-number {
  font-size: 2rem;
  font-weight: bold;
  color: #667eea;
  min-width: 60px;
  text-align: center;
}

.rank-content {
  flex: 1;
}

.recommendation {
  color: #555;
  line-height: 1.8;
  margin-top: 0.8rem;
}

.topic-list {
  margin-top: 1.5rem;
}

.topic-intro {
  font-size: 1rem;
  line-height: 1.9;
  color: #555;
}

.latest-item {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.date {
  font-size: 0.9rem;
  color: #667eea;
  font-weight: bold;
  min-width: 100px;
}

.content {
  flex: 1;
}

.detail {
  background: white;
  padding: 2rem;
  border-radius: 10px;
}

.detail h1 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
}

.detail section {
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: #f9f9f9;
}

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

.info-list strong {
  color: #667eea;
  min-width: 80px;
  display: inline-block;
}

.oneline {
  font-size: 1.2rem;
  color: #667eea;
  font-weight: 500;
  line-height: 1.8;
}

.summary-text {
  line-height: 2;
  color: #555;
}

.summary-text p {
  margin-bottom: 1rem;
}

.review-text {
  font-size: 1.05rem;
  line-height: 2;
  color: #555;
  font-style: italic;
  padding-left: 1rem;
  border-left: 4px solid #667eea;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.related-item {
  padding: 1.5rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  transition: transform 0.3s;
}

.related-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 3px 15px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
  .video-grid {
    grid-template-columns: 1fr;
  }

  .ranking-item {
    flex-direction: column;
    gap: 1rem;
  }

  .latest-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .related-list {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.5rem;
  }

  .detail h1 {
    font-size: 1.6rem;
  }
}