/* ===========================================
   World Journey セクション
   =========================================== */

/* HEROイメージ（クリックでworld/index.htmlへ） */
.wj-hero {
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 24px;
  aspect-ratio: 16 / 9;
  text-decoration: none;
  color: #fff;
}
.wj-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s cubic-bezier(.2,.8,.2,1);
}
.wj-hero:hover .wj-hero__img {
  transform: scale(1.04);
}
.wj-hero__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.45) 100%);
  text-align: center;
  padding: 16px;
}
.wj-hero__sub {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  opacity: 0.9;
}
.wj-hero__title {
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
}

/* 章サムネ4枚グリッド */
.wj-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}
.wj-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 6px;
  overflow: hidden;
  transition: transform .35s ease;
}
.wj-card:hover {
  transform: translateY(-2px);
}
.wj-card__media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #E8E4DC;
}
.wj-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s cubic-bezier(.2,.8,.2,1);
}
.wj-card:hover .wj-card__media img {
  transform: scale(1.06);
}
.wj-card__body {
  display: flex;
  flex-direction: column;
  padding: 12px 4px 8px;
}
.wj-card__num {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: #888;
  margin-bottom: 4px;
}
.wj-card__name {
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: #2a2a2a;
  margin-bottom: 2px;
}
.wj-card__country {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: #888;
}

/* 全章リンク（横並び・ピリオド区切り） */
.wj-chapters {
  text-align: center;
  font-family: 'EB Garamond', Georgia, serif;
  font-size: 0.92rem;
  line-height: 2;
  color: #555;
  padding: 8px 0 4px;
}
.wj-chapters a {
  color: #2a2a2a;
  text-decoration: none;
  transition: color .25s ease;
  white-space: nowrap;
}
.wj-chapters a:hover {
  color: #000;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.wj-sep {
  color: #bbb;
  margin: 0 0.4em;
}

/* タブレット以上：4枚を1行表示 */
@media (min-width: 700px) {
  .wj-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .wj-hero__title {
    font-size: 1.8rem;
  }
  .wj-hero__sub {
    font-size: 1.05rem;
  }
}

/* デスクトップ：HEROを少し大きめに */
@media (min-width: 1100px) {
  .wj-hero {
    aspect-ratio: 21 / 9;
  }
}