/**
 * 文章頁：延伸閱讀
 *
 * @package Yafun2027
 */

/* ==========================================================================
   延伸閱讀（取代 Jetpack 相關文章）
   ========================================================================== */

/* Jetpack 相關文章若仍輸出，一律隱藏 */
#jp-relatedposts {
  display: none;
}

.yf-related {
  max-width: 108rem;
  margin: 5rem auto 2rem;
  padding: 4rem 3rem 0;
  border-top: 1px solid #e4e0d4;
}

.yf-related-header {
  margin-bottom: 2.4rem;
}

.yf-related-label {
  display: block;
  font-family: var(--font-pen);
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1;
  color: var(--color-ocean);
  transform: rotate(-1.5deg);
  transform-origin: left;
}

.yf-related-title {
  margin: 0.4rem 0 0;
  font-size: 2.6rem;
  letter-spacing: 0.1em;
  color: var(--color-ink);
}

.yf-related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2.4rem;
}

.yf-related-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid #e4e0d4;
  border-radius: 10px;
  background: #fff;
  color: var(--color-ink);
  text-decoration: none;
  transition: box-shadow 0.3s, transform 0.3s;
}

.yf-related-card:hover,
.yf-related-card:focus-visible {
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(31, 42, 36, 0.12);
}

.yf-related-thumb {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--color-paper);
  background-position: center;
  background-size: cover;
}

.yf-related-thumb .yf-bg-layer {
  transition: opacity 0.8s ease, transform 0.6s ease;
}

.yf-related-card:hover .yf-related-thumb .yf-bg-layer {
  transform: scale(1.05);
}

.yf-related-body {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1.6rem 1.8rem 2rem;
}

.yf-related-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.yf-related-cat {
  padding: 0.1em 0.8em;
  border: 1px solid var(--color-leaf);
  border-radius: 999px;
  font-family: var(--font-kai);
  font-size: 1.3rem;
  color: var(--color-leaf);
}

.yf-related-meta time {
  font-family: var(--font-pen);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-ocean);
}

.yf-related-name {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-ink);
  transition: color 0.2s;
}

.yf-related-card:hover .yf-related-name,
.yf-related-card:focus-visible .yf-related-name {
  color: var(--color-leaf);
}

/* 「更多延伸閱讀」 */
.yf-related-card.is-hidden {
  display: none;
}

.yf-related-card.is-revealed {
  animation: yf-related-in 0.5s ease both;
}

@keyframes yf-related-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

.yf-related-more-wrap {
  margin-top: 2.8rem;
  text-align: center;
}

.yf-related-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 2.8rem;
  border: 1px solid var(--color-leaf);
  border-radius: 999px;
  background: #fff;
  color: var(--color-leaf);
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}

.yf-related-more:hover,
.yf-related-more:focus-visible {
  background: var(--color-leaf);
  color: #fff;
}

.yf-related-more-count {
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* 手機：改為上下排列的橫式小卡（左圖右文），不需左右滑動 */
@media (max-width: 767px) {
  .yf-related {
    padding: 3rem 1.6rem 0;
  }

  .yf-related-list {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .yf-related-card {
    flex-direction: row;
    align-items: stretch;
  }

  .yf-related-thumb {
    flex: 0 0 36%;
    aspect-ratio: auto;
    min-height: 11rem;
  }

  .yf-related-body {
    justify-content: center;
    padding: 1.2rem 1.4rem;
  }

  .yf-related-name {
    font-size: 1.6rem;
  }

  .yf-related-more {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .yf-related-card,
  .yf-related-thumb .yf-bg-layer,
  .yf-related-name,
  .yf-related-more {
    transition: none;
  }

  .yf-related-card.is-revealed {
    animation: none;
  }

  .yf-related-card:hover,
  .yf-related-card:hover .yf-related-thumb .yf-bg-layer {
    transform: none;
  }
}