body.ui-style-11 {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

.container section {
  animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.video-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 8px 24px rgba(44, 90, 160, 0.15);
}

nav a {
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: #2c5aa0;
  transition: all 0.3s;
  transform: translateX(-50%);
}

nav a:hover::after {
  width: 80%;
}

h2 {
  position: relative;
  padding-bottom: 10px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #2c5aa0, transparent);
}

.video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

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