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

.page-header {
  margin: 2rem 0;
  padding: 2rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.page-header h1 {
  font-size: 2rem;
  color: #333;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.intro-section {
  background: #fff;
  padding: 2rem;
  margin: 2rem 0;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  line-height: 1.8;
}

section {
  margin: 3rem 0;
}

section h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #0066cc;
  color: #333;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.video-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.2s, box-shadow 0.2s;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

.video-card h3 a {
  color: #0066cc;
}

.video-card .meta {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.video-card .one-line {
  color: #555;
  line-height: 1.6;
  font-size: 0.95rem;
}

.video-list {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.video-item {
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.video-item:last-child {
  border-bottom: none;
}

.video-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.more-link {
  text-align: right;
  margin-top: 1rem;
}

.more-link a {
  color: #0066cc;
  font-weight: bold;
}

.links-section {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
}

.genre-group {
  background: #fff;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.genre-group h3 {
  color: #0066cc;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.video-list-ul {
  list-style: none;
}

.video-list-ul li {
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.video-list-ul li:last-child {
  border-bottom: none;
}

.video-list-ul li a {
  font-size: 1.1rem;
  font-weight: bold;
  color: #0066cc;
}

.video-list-ul li .meta {
  color: #999;
  font-size: 0.85rem;
  margin-left: 1rem;
}

.video-list-ul li p {
  margin-top: 0.5rem;
  color: #666;
}

.rank-list {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.rank-item {
  display: flex;
  padding: 1.5rem 0;
  border-bottom: 1px solid #eee;
}

.rank-item:last-child {
  border-bottom: none;
}

.rank-num {
  font-size: 2rem;
  font-weight: bold;
  color: #0066cc;
  width: 60px;
  text-align: center;
  flex-shrink: 0;
}

.rank-content {
  flex: 1;
}

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

.rank-content .meta {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.topic-group {
  margin-bottom: 3rem;
}

.topic-group h3 {
  background: linear-gradient(135deg, #0066cc, #0099ff);
  color: #fff;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

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

.topic-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.topic-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.topic-card .date {
  color: #0066cc;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.latest-timeline {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.timeline-item {
  display: flex;
  padding: 1.5rem 0;
  border-bottom: 1px solid #eee;
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-date {
  font-size: 1.2rem;
  font-weight: bold;
  color: #0066cc;
  width: 80px;
  flex-shrink: 0;
}

.timeline-content {
  flex: 1;
}

.timeline-content h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.timeline-content .meta {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.detail-page {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.detail-page header h1 {
  font-size: 2rem;
  color: #333;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid #0066cc;
}

.detail-page section {
  margin: 2rem 0;
}

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

.basic-info li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.basic-info li strong {
  color: #0066cc;
  display: inline-block;
  width: 100px;
}

.one-line p, .summary p, .review p {
  line-height: 1.8;
  color: #555;
  font-size: 1rem;
}

.related .video-grid {
  margin-top: 1rem;
}

footer {
  background: #333;
  color: #fff;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .container { padding: 10px; }
  .page-header { padding: 1rem; }
  .page-header h1 { font-size: 1.5rem; }
  .video-grid { grid-template-columns: 1fr; gap: 1rem; }
  .topic-cards { grid-template-columns: 1fr; }
  .rank-num { font-size: 1.5rem; width: 50px; }
  .timeline-date { width: 60px; font-size: 1rem; }
}