/* 商品詳細ページ（サプリメント／化粧品 共通テンプレート） */

/* タイトル帯 */
.item-hero {
  padding: calc(var(--header-h) + clamp(48px, 5vw, 72px)) 0 clamp(44px, 4.5vw, 64px);
  text-align: center;
  background: var(--pink-pale);
}
.item-hero h1 {
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  line-height: 1.5;
  color: var(--pink);
}
.item-hero .en {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--gray);
}
.item-hero .cat {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gray);
}

/* リード */
.item-lead {
  max-width: 900px;
  margin: 0 auto;
  padding: 0;
  font-size: clamp(17px, 1.4vw, 20px);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.06em;
  text-align: center;
}

/* 写真＋説明 */
.item-main {
  margin-top: clamp(40px, 4.5vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.item-photo {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  background: #fff;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.item-photo img { width: 100%; height: auto; }
.item-desc h2 {
  font-size: clamp(19px, 1.5vw, 22px);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--pink);
}
.item-desc .body1 {
  margin-top: 20px;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.95;
  letter-spacing: 0.04em;
}
.item-desc .body1 .line { display: block; }
.item-desc .body1 .line.is-head { font-weight: 500; }
.item-desc .body1 .line + .line { margin-top: 0.35em; }
.item-desc .body2 {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  font-weight: 300;
  line-height: 2;
  letter-spacing: 0.04em;
}
.item-desc .body2 .line { display: block; }
.item-desc .body2 .line + .line { margin-top: 0.6em; }

/* 商品情報テーブル */
.item-spec { margin-top: clamp(56px, 6vw, 80px); }
.item-spec h2 {
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--gray);
  text-align: center;
}
.spec-table {
  width: 100%;
  max-width: 920px;
  margin: 24px auto 0;
  border-collapse: collapse;
  border: 1px solid var(--line);
}
.spec-table th, .spec-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.04em;
  text-align: left;
  vertical-align: top;
}
.spec-table th {
  width: 190px;
  background: var(--bg2);
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.spec-table td { font-weight: 300; }
.spec-table td .line { display: block; }

/* 問い合わせ・入会への導線 */
.item-actions {
  margin-top: clamp(48px, 5vw, 64px);
  padding: clamp(28px, 3.5vw, 40px) clamp(20px, 4vw, 48px);
  background: var(--pink-pale);
  border-radius: var(--radius-l);
  text-align: center;
}
.item-actions-note { font-size: 14px; line-height: 1.9; letter-spacing: 0.06em; color: var(--gray); }
.item-actions .btn-row { margin-top: 20px; }
.item-actions .btn { min-width: 260px; }
@media (max-width: 760px) {
  .item-actions .btn-row { flex-direction: column; align-items: stretch; }
  .item-actions .btn { width: 100%; min-width: 0; }
}

/* 前後ナビ */
.item-nav {
  margin-top: clamp(48px, 5vw, 72px);
  padding-top: 20px;
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  letter-spacing: 0.06em;
}
.item-nav a { display: inline-flex; align-items: center; gap: 8px; transition: color 0.2s ease; }
.item-nav a:hover { color: var(--pink); }
.item-nav .prev { justify-self: start; }
.item-nav .next { justify-self: end; }
.item-nav .all {
  display: inline-grid;
  grid-template-columns: repeat(3, 4px);
  gap: 2px;
  padding: 8px;
}
.item-nav .all i { width: 4px; height: 4px; background: var(--ink); border-radius: 1px; }
.item-nav .all:hover i { background: var(--pink); }
.item-nav .label { font-size: 12px; color: var(--gray); }
.item-nav .title { font-weight: 500; }
.item-nav .is-empty { visibility: hidden; }

@media (max-width: 900px) {
  .item-main { grid-template-columns: 1fr; }
  .item-photo { position: static; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 760px) {
  .item-hero h1 { letter-spacing: 0.12em; text-indent: 0.12em; }
  .spec-table th, .spec-table td { display: block; width: 100%; padding: 12px 16px; }
  .spec-table th { border-bottom: 0; padding-bottom: 8px; }
  .item-nav { grid-template-columns: 1fr auto 1fr; font-size: 12px; }
  .item-nav .title { display: none; }
}