@charset "UTF-8";
/* ==========================================================================
   商品紹介（product/index.html）専用スタイル
   共通デザイントークンは common/css/style.css の :root を継承します。
   構成:
     1. パンくず / ページヒーロー
     2. あわせて読みたい（他ページへの導線）/ 価格表CTA
     3. 商品早見グリッド（概要カード）
     4. 章ジャンプナビ（目次）
     5. 章（chapter）共通レイアウト・品種リスト・写真グリッド
     6. PDFリンク
     7. ライトボックス（画像拡大表示）
   ========================================================================== */

/* ---------------------------------------------------------------------
   1. パンくず / ページヒーロー
   ------------------------------------------------------------------- */
.breadcrumb{
  margin-top: var(--header-h);
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-line);
}
.breadcrumb ol{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
  padding: 0.9rem 0;
  font-size: 0.78rem;
  color: var(--color-ink-soft);
}
.breadcrumb a{ color: var(--color-ink-soft); }
.breadcrumb a:hover{ color: var(--color-green); }
.breadcrumb li + li::before{
  content: "/";
  margin-right: 0.5em;
  color: var(--color-line);
}
.breadcrumb li[aria-current]{ color: var(--color-ink); }

.page-hero{
  position: relative;
  background: var(--color-ink);
  color: #FBF8F0;
  overflow: hidden;
}
.page-hero .inner{
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,360px);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-block: clamp(2.4rem, 6vw, 3.6rem);
}
.page-hero__text .section-head__eyebrow{ color: var(--color-gold-soft); }
.page-hero h1{
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: #FBF8F0;
}
.page-hero__lead{
  margin-top: 0.9em;
  max-width: 42em;
  color: #D8DFD8;
  font-size: 0.95rem;
}
.page-hero__media{
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.page-hero__media img{ width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }

/* ---------------------------------------------------------------------
   2. あわせて読みたい / 価格表CTA
   ------------------------------------------------------------------- */
.link-cards{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1rem;
  padding-block: clamp(1.6rem, 3vw, 2.2rem);
}
.link-card{
  display: flex;
  align-items: center;
  gap: 0.9em;
  background: var(--color-surface);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-soft);
  padding: 1.1em 1.3em;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.link-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.link-card .ico{
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-green);
  display: flex; align-items: center; justify-content: center;
}
.link-card .ico svg{ width: 18px; height: 18px; }
.link-card__title{ display: block; font-family: var(--font-display); font-size: 0.98rem; }
.link-card__desc{ display: block; font-size: 0.74rem; color: var(--color-ink-soft); margin-top: 0.2em; }
.link-card--accent{
  background: var(--color-green);
  color: #F5F1E6;
}
.link-card--accent .ico{ background: rgba(245,241,230,0.14); color: var(--color-gold-soft); }
.link-card--accent .link-card__desc{ color: #D8DFD8; }

/* ---------------------------------------------------------------------
   3. 商品早見グリッド（概要カード）
   ------------------------------------------------------------------- */
.quick-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 1rem;
  padding-inline: 1.5rem;
}
.quick-card{
  display: block;
  background: var(--color-surface);
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.quick-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.quick-card__media{ aspect-ratio: 16/10; background: var(--color-bg-soft); overflow: hidden; }
.quick-card__media img{ width: 100%; height: 100%; object-fit: cover; }
.quick-card__body{ display: block; padding: 0.9em 1em 1.1em; }
.quick-card__num{ display: block; font-family: var(--font-display); font-size: 0.72rem; color: var(--color-gold); }
.quick-card__title{ display: block; font-family: var(--font-display); font-size: 1rem; margin-top: 0.15em; }
.quick-card__desc{ display: block; font-size: 0.74rem; color: var(--color-ink-soft); margin-top: 0.4em; }

/* ---------------------------------------------------------------------
   4. 章ジャンプナビ（目次）
   ------------------------------------------------------------------- */
.chapter-nav{
  position: sticky;
  top: var(--header-h);
  z-index: 100;
  background: rgba(245, 241, 230, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.chapter-nav__list{
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.8rem 0;
  scrollbar-width: thin;
}
.chapter-nav__list::-webkit-scrollbar{ height: 4px; }
.chapter-nav__list::-webkit-scrollbar-thumb{ background: var(--color-line); border-radius: 4px; }
.chapter-nav a{
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5em 1.1em;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--color-ink-soft);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.chapter-nav a .num{
  font-family: var(--font-display);
  color: var(--color-gold);
  font-size: 0.78rem;
}
.chapter-nav a:hover{ border-color: var(--color-green); color: var(--color-green); }

/* ---------------------------------------------------------------------
   5. 章（chapter）共通レイアウト・品種リスト・写真グリッド
   ------------------------------------------------------------------- */
.chapter{
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--color-line);
}
.chapter:last-of-type{ border-bottom: none; }
.chapter:nth-of-type(even){ background: var(--color-bg-soft); }

.chapter-head{
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.2em;
}
.chapter-head .num{
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3rem);
  color: var(--color-gold-soft);
  line-height: 1;
}
.chapter-head h2{
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  color: var(--color-ink);
}

.chapter-text p{ color: var(--color-ink-soft); margin-bottom: 1em; max-width: 62em; }
.chapter-text p:last-child{ margin-bottom: 0; }

.variety-list{
  display: grid;
  gap: 0.9em;
  margin: 1.6em 0 0;
}
.variety-list li{
  display: flex;
  gap: 0.8em;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  line-height: 1.8;
}
.variety-list .vnum{
  flex-shrink: 0;
  color: var(--color-green);
  font-family: var(--font-display);
}
.variety-list strong,
.variety-list dt{ color: var(--color-ink); font-weight: 700; }

.variety-chips{
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.6em 0 0;
}
.variety-chips li{
  padding: 0.5em 1em;
  border-radius: 999px;
  background: var(--color-bg-soft);
  color: var(--color-ink-soft);
  font-size: 0.84rem;
}

.photo-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, 160px);
  gap: 0.7rem;
  margin-top: 1.8em;
}
.photo-grid a{
  display: block;
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.photo-grid a:hover{ transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.photo-grid img{ width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
.photo-grid .cap{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0.4em 0.6em;
  font-size: 0.68rem;
  color: #fff;
  background: linear-gradient(0deg, rgba(20,17,13,0.72), rgba(20,17,13,0));
}

/* ---------------------------------------------------------------------
   6. PDFリンク
   ------------------------------------------------------------------- */
.pdf-links{
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8em;
}
.pdf-link{
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.6em 1.1em;
  border-radius: 999px;
  border: 1px solid var(--color-green);
  color: var(--color-green);
  font-size: 0.8rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.pdf-link:hover{ background: var(--color-green); color: #F5F1E6; }
.pdf-link .ico{ width: 15px; height: 15px; flex-shrink: 0; }

/* ---------------------------------------------------------------------
   7. ライトボックス（画像拡大表示）
   ------------------------------------------------------------------- */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 5vw, 3rem);
  background: rgba(20, 17, 13, 0.88);
}
.lightbox.is-open{ display: flex; }
.lightbox__figure{
  max-width: min(92vw, 900px);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lightbox__figure img{
  max-width: 100%;
  max-height: 76vh;
  width: auto;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.lightbox__caption{
  margin-top: 1em;
  color: #F0ECDF;
  font-size: 0.82rem;
  text-align: center;
}
.lightbox__close{
  position: absolute;
  top: clamp(0.8rem, 3vw, 1.8rem);
  right: clamp(0.8rem, 3vw, 1.8rem);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(245,241,230,0.12);
  color: #F5F1E6;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease;
}
.lightbox__close:hover{ background: rgba(245,241,230,0.22); }

/* ---------------------------------------------------------------------
   レスポンシブ（本ページ専用の最小限の上書き）
   ------------------------------------------------------------------- */
@media (max-width: 1024px){
  .quick-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px){
  .page-hero .inner{ grid-template-columns: 1fr; }
  .page-hero__media{ order: -1; max-width: 320px; }
  .link-cards{ grid-template-columns: 1fr; }
}
@media (max-width: 600px){
  .quick-grid{ grid-template-columns: 1fr 1fr; }
  .photo-grid{ grid-template-columns: repeat(3, 1fr); }
}