/* 布局变体：E */
/* UI 风格：8 */

body.ui-style-8 {
  --primary-color: #2196F3;
  --secondary-color: #1976D2;
  --text-color: #333;
  --bg-color: #f5f5f5;
}

.video-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-card:hover {
  transform: translateY(-4px) scale(1.02);
}

section {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tag:hover {
  background: #1976D2;
  color: #fff;
  transform: scale(1.05);
}

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

  section {
    padding: 15px;
  }

  h1 { font-size: 22px; }
  h2 { font-size: 18px; }
}