/* 云端影视 - ui-style-10 - Layout E */

/* 响应式增强 */
@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 动画效果 */
.video-card {
  transition: all 0.3s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

/* 链接样式增强 */
a {
  transition: color 0.2s ease;
}

a:hover {
  color: #174ea6;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: #1a73e8;
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s ease;
}

.btn:hover {
  background: #174ea6;
  text-decoration: none;
}

/* 返回顶部按钮 */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  z-index: 999;
}

#back-to-top:hover {
  background: #174ea6;
}

#back-to-top.show {
  display: flex;
}