/* 幻灯片懒加载样式 */

/* 懒加载占位符 */
.lazy-placeholder {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading-shimmer 1.5s infinite;
}

/* 加载动画 */
@keyframes loading-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* 加载中状态 */
.lazy-loading .lazy-placeholder {
  background: linear-gradient(90deg, #e3f2fd 25%, #bbdefb 50%, #e3f2fd 75%);
  background-size: 200% 100%;
  animation: loading-shimmer 1s infinite;
}

/* 加载完成状态 */
.lazy-loaded {
  opacity: 1;
  transition: opacity 0.3s ease-in-out;
}

/* 加载错误状态 */
.lazy-error .lazy-error-placeholder {
  background: #fff5f5;
  border-color: #fed7d7 !important;
  color: #e53e3e;
}

/* 加载中的旋转动画 */
.spinner-border {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  vertical-align: text-bottom;
  border: 0.25em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
  to {
    transform: rotate(360deg);
  }
}

/* 响应式调整 */
@media (max-width: 768px) {
  .lazy-placeholder,
  .lazy-error-placeholder {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16/9;
    min-height: 200px;
  }
}

/* 提升用户体验的过渡效果 */
.rslides li {
  transition: opacity 0.2s ease-in-out;
}

/* 预加载提示 */
.preload-indicator {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  z-index: 10;
}

/* 图片计数器 */
.slide-counter {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  z-index: 10;
}