.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

.video-card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.2s;
}

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

.video-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.video-card .meta {
  color: #666;
  font-size: 14px;
  margin-bottom: 8px;
}

.video-card .oneline,
.video-card .genre {
  color: #888;
  font-size: 14px;
  line-height: 1.5;
}

.site-intro, .intro {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  margin: 20px 0;
  line-height: 1.8;
}

.list-links ul {
  list-style: none;
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  margin: 20px 0;
}

.list-links li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

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

.video-list .video-item {
  background: #fff;
  padding: 15px;
  margin: 10px 0;
  border-radius: 8px;
  border-left: 4px solid #1a73e8;
}

.ranked-list .ranked-item {
  display: flex;
  gap: 15px;
  background: #fff;
  padding: 15px;
  margin: 10px 0;
  border-radius: 8px;
  align-items: flex-start;
}

.ranked-item .rank {
  font-size: 24px;
  font-weight: bold;
  color: #1a73e8;
  min-width: 40px;
}

.ranked-item .ranked-content {
  flex: 1;
}

.ranked-item .review {
  color: #666;
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.topic-group {
  margin: 30px 0;
}

.topic-group h2 {
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid #1a73e8;
}

.timeline-list .timeline-item {
  display: flex;
  gap: 20px;
  background: #fff;
  padding: 20px;
  margin: 15px 0;
  border-radius: 8px;
}

.timeline-item .date {
  font-size: 18px;
  font-weight: bold;
  color: #1a73e8;
  min-width: 60px;
}

.timeline-item .timeline-content {
  flex: 1;
}

.video-detail {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
}

.video-detail h1 {
  font-size: 28px;
  margin-bottom: 20px;
  color: #333;
}

.video-detail section {
  margin: 25px 0;
}

.video-detail section h2 {
  font-size: 20px;
  margin-bottom: 15px;
  color: #1a73e8;
}

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

.basic-info li {
  padding: 8px 0;
  border-bottom: 1px solid #eee;
}

.basic-info li:last-child {
  border-bottom: none;
}

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

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

  .video-detail {
    padding: 15px;
  }

  .ranked-item {
    flex-direction: column;
  }

  .timeline-item {
    flex-direction: column;
  }
}