/* ========== 骨架屏加载 — 对齐 legacy skeleton loading ========== */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--surface-2, #eee);
  border-radius: var(--radius, 8px);
}

.skeleton::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.4) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 1.5s infinite;
}

@keyframes skeleton-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* 骨架屏变体 */
.skeleton-text {
  height: 14px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.skeleton-text--title {
  height: 20px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-text--short {
  width: 40%;
}

.skeleton-text--medium {
  width: 70%;
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-avatar--sm {
  width: 32px;
  height: 32px;
}

.skeleton-avatar--lg {
  width: 64px;
  height: 64px;
}

.skeleton-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius, 8px);
}

.skeleton-thumb--square {
  aspect-ratio: 1;
}

.skeleton-thumb--card {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius, 8px) var(--radius, 8px) 0 0;
}

/* 卡片骨架屏 */
.skeleton-card {
  background: var(--surface-1, #fff);
  border-radius: var(--radius, 8px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.skeleton-card__thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
}

.skeleton-card__body {
  padding: 14px 16px;
}

.skeleton-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

/* 评论骨架屏 */
.skeleton-comment {
  display: flex;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line-soft, rgba(0, 0, 0, 0.03));
}

.skeleton-comment__body {
  flex: 1;
}

.skeleton-comment__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

/* 通用骨架屏容器 */
.skeleton-list .skeleton-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line-soft, rgba(0, 0, 0, 0.03));
}

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

/* 减弱动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .skeleton::after {
    animation: none;
  }
}