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

.main-container {
  min-height: calc(100vh - 200px);
  padding: 20px 0;
}

.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.hero-title {
  font-size: 32px;
  margin-bottom: 20px;
  font-weight: bold;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

.intro-section {
  background: white;
  padding: 40px 0;
  margin: 20px 0;
}

.intro-section h2 {
  font-size: 28px;
  margin-bottom: 20px;
  color: #333;
}

.intro-content p {
  margin-bottom: 15px;
  line-height: 1.8;
  font-size: 16px;
}

.hot-section, .top-section, .latest-section {
  margin: 40px 0;
}

section h2 {
  font-size: 28px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 3px solid #667eea;
}

.section-desc {
  margin-bottom: 20px;
  color: #666;
}

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

.video-card {
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.video-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #333;
}

.video-card h3 a {
  color: #333;
}

.video-card h3 a:hover {
  color: #667eea;
}

.video-meta {
  color: #999;
  font-size: 14px;
  margin-bottom: 10px;
}

.video-oneline {
  color: #666;
  line-height: 1.6;
}

.top-list {
  background: white;
  border-radius: 8px;
  overflow: hidden;
}

.top-item {
  display: flex;
  padding: 15px 20px;
  border-bottom: 1px solid #eee;
  align-items: center;
}

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

.rank {
  font-size: 24px;
  font-weight: bold;
  color: #667eea;
  margin-right: 20px;
  min-width: 40px;
}

.top-content h4 {
  margin-bottom: 5px;
}

.latest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 15px;
}

.video-item {
  background: white;
  padding: 15px;
  border-radius: 8px;
  border-left: 4px solid #667eea;
}

.video-item h4 {
  margin-bottom: 8px;
}

.video-brief {
  color: #666;
  font-size: 14px;
}

.page-title {
  font-size: 32px;
  margin-bottom: 15px;
  color: #333;
}

.page-desc {
  color: #666;
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 30px;
  padding: 15px;
  background: #f9f9f9;
  border-radius: 8px;
}

.list-container {
  margin-top: 30px;
}

.list-card {
  background: white;
  padding: 25px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.list-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.video-summary {
  color: #666;
  line-height: 1.8;
  margin-top: 10px;
}

.video-review {
  color: #764ba2;
  font-style: italic;
  margin-top: 10px;
  padding: 10px;
  background: #f5f0ff;
  border-radius: 4px;
}

.rank-card {
  display: flex;
  background: white;
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 8px;
  align-items: flex-start;
}

.rank-number {
  font-size: 32px;
  font-weight: bold;
  color: #667eea;
  margin-right: 20px;
  min-width: 50px;
}

.rank-content {
  flex: 1;
}

.rank-content h3 {
  margin-bottom: 8px;
}

.topic-group {
  margin-bottom: 40px;
  background: white;
  padding: 25px;
  border-radius: 8px;
}

.topic-title {
  font-size: 24px;
  margin-bottom: 20px;
  color: #667eea;
  border-bottom: 2px solid #667eea;
  padding-bottom: 10px;
}

.topic-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.topic-item {
  padding: 15px;
  border: 1px solid #eee;
  border-radius: 6px;
  transition: border-color 0.3s;
}

.topic-item:hover {
  border-color: #667eea;
}

.topic-item h4 {
  margin-bottom: 8px;
}

.latest-card {
  display: flex;
  background: white;
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 8px;
  align-items: flex-start;
}

.latest-date {
  font-size: 28px;
  font-weight: bold;
  color: #667eea;
  margin-right: 20px;
  min-width: 80px;
  text-align: center;
}

.latest-content {
  flex: 1;
}

.latest-content h3 {
  margin-bottom: 8px;
}

.detail-article {
  background: white;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.detail-title {
  font-size: 36px;
  margin-bottom: 30px;
  color: #333;
  border-bottom: 3px solid #667eea;
  padding-bottom: 15px;
}

.detail-meta {
  background: #f9f9f9;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.meta-item {
  line-height: 1.8;
}

.detail-section {
  margin-bottom: 35px;
}

.detail-section h2 {
  font-size: 24px;
  margin-bottom: 15px;
  color: #667eea;
}

.highlight-text {
  font-size: 18px;
  color: #764ba2;
  font-weight: 500;
  padding: 15px;
  background: #f5f0ff;
  border-radius: 8px;
  border-left: 4px solid #764ba2;
}

.summary-text {
  line-height: 2;
  color: #555;
  font-size: 16px;
  text-align: justify;
}

.review-text {
  color: #764ba2;
  font-style: italic;
  line-height: 1.8;
  padding: 15px;
  background: #f5f0ff;
  border-radius: 8px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.related-item {
  padding: 15px;
  border: 2px solid #eee;
  border-radius: 8px;
  transition: border-color 0.3s, background 0.3s;
}

.related-item:hover {
  border-color: #667eea;
  background: #f9f9ff;
}

.related-item h4 {
  margin-bottom: 8px;
  color: #333;
}

.related-item p {
  color: #666;
  font-size: 14px;
  line-height: 1.6;
}

.footer {
  background: #333;
  color: white;
  padding: 30px 0;
  margin-top: 50px;
  text-align: center;
}

.footer p {
  margin: 0;
}

@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  .hero-title {
    font-size: 24px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .detail-article {
    padding: 20px;
  }

  .detail-title {
    font-size: 28px;
  }

  .detail-meta {
    grid-template-columns: 1fr;
  }

  .rank-number, .latest-date {
    font-size: 24px;
  }
}