/* 全局样式 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid #e5e7eb;
}

.page-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: #111827;
}

.page-intro {
  color: #6b7280;
  line-height: 1.8;
}

/* 卡片样式 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.video-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  transition: all 0.3s;
}

.video-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transform: translateY(-2px);
}

.video-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: #111827;
}

.video-card h3 a {
  color: #111827;
}

.video-card h3 a:hover {
  color: #2563eb;
  text-decoration: none;
}

.video-meta {
  font-size: 0.875rem;
  color: #6b7280;
  margin: 0.5rem 0;
}

.video-desc {
  color: #4b5563;
  line-height: 1.6;
  margin-top: 0.75rem;
}

/* 列表样式 */
.video-list {
  background: #fff;
  border-radius: 8px;
  padding: 1rem;
}

.video-item {
  display: flex;
  align-items: flex-start;
  padding: 1rem;
  border-bottom: 1px solid #e5e7eb;
  transition: background 0.2s;
}

.video-item:hover {
  background: #f9fafb;
}

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

.rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: #2563eb;
  color: #fff;
  border-radius: 4px;
  font-weight: bold;
  margin-right: 1rem;
  flex-shrink: 0;
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  border-radius: 50%;
  font-weight: bold;
  font-size: 1.125rem;
  margin-right: 1rem;
  flex-shrink: 0;
}

.new-badge {
  display: inline-block;
  background: #10b981;
  color: #fff;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.video-brief {
  font-size: 0.875rem;
  color: #6b7280;
}

/* 详情页样式 */
.detail-page .container {
  max-width: 900px;
}

.basic-info {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.basic-info h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #111827;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.75rem;
}

.info-item {
  padding: 0.5rem 0;
}

.highlight {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.highlight h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.one-line {
  font-size: 1.125rem;
  line-height: 1.8;
}

.summary, .review {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.summary h2, .review h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #111827;
}

.summary-content, .review-content {
  line-height: 1.8;
  color: #374151;
}

.related {
  margin: 2rem 0;
}

.related h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: #111827;
}

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

.related-item {
  background: #fff;
  padding: 1.25rem;
  border-radius: 8px;
  border-left: 3px solid #2563eb;
}

.related-item h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.related-desc {
  color: #6b7280;
  font-size: 0.875rem;
  margin: 0.5rem 0;
  line-height: 1.6;
}

.related-meta {
  color: #9ca3af;
  font-size: 0.8rem;
}

/* Section Links */
.section-link {
  text-align: center;
  margin: 2rem 0;
}

.section-link a {
  display: inline-block;
  margin: 0 1rem;
  padding: 0.75rem 1.5rem;
  background: #2563eb;
  color: #fff;
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s;
}

.section-link a:hover {
  background: #1d4ed8;
  text-decoration: none;
  transform: translateY(-2px);
}

/* 列表页特殊样式 */
.card-full .card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.card-category {
  background: #dbeafe;
  color: #1e40af;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.8rem;
  white-space: nowrap;
}

.video-tags {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

.card-ranked {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

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

.card-topic .topic-label {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
  margin: 0.5rem 0;
}

.card-latest {
  position: relative;
}

/* 站点介绍 */
.site-intro {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin: 2rem 0;
  border-left: 4px solid #2563eb;
}

.site-intro p {
  line-height: 1.8;
  color: #374151;
}

/* Footer */
.site-footer {
  background: #1f2937;
  color: #d1d5db;
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

/* 响应式 */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .page-header h1 {
    font-size: 1.5rem;
  }

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

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

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

  .section-link a {
    display: block;
    margin: 0.5rem 0;
  }
}