/*!
 * Kireidelab — 商品詳細ページ スタイルシート
 * 読み込み対象: kireidelab_product シングルページのみ
 */

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --cream:      #FAF7F2;
  --beige:      #E8DCC8;
  --off-white:  #F5F0E8;
  --gold:       #C4A35A;
  --gold-pale:  #F7F0DC;
  --sage:       #8A9E8A;
  --sage-pale:  #EEF4EE;
  --text:       #2C2C2C;
  --text-mid:   #666;
  --text-light: #999;
  --border:     #e5e0d8;
  --pad:        clamp(16px, 4vw, 48px);
  --max:        1200px;
}

/* ── Layout ─────────────────────────────────────────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* ── Breadcrumb ─────────────────────────────────────────── */
.breadcrumb { padding: 14px 0; font-size: 11px; color: var(--text-light); }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb span { margin: 0 6px; }

/* ══════════════════════════════════════════════════════════
   商品上部：2カラム（ギャラリー ＋ 購入エリア）
══════════════════════════════════════════════════════════ */
.product-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 0 0 64px;
}

/* ── 左：ギャラリーカルーセル ──────────────────────────── */
.gallery { position: sticky; top: 80px; }

/* ステージ（矢印 + トラック） */
.gallery__stage {
  position: relative; border-radius: 12px; overflow: hidden;
  margin-bottom: 10px; background: var(--cream);
}
.gallery__track-wrap {
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.gallery__track-wrap::-webkit-scrollbar { display: none; }
.gallery__track { display: flex; }
.gallery__slide {
  flex: 0 0 100%; aspect-ratio: 1 / 1;
  scroll-snap-align: start;
  display: flex; align-items: center; justify-content: center;
  background: var(--cream); overflow: hidden;
}
.gallery__slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery__slide .ph {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-light); font-size: 12px;
}

/* 前後矢印 */
.gallery__arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 36px; height: 36px; border-radius: 50%; z-index: 2;
  background: rgba(255,255,255,.92); border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--text); transition: opacity .2s, box-shadow .2s;
}
.gallery__arrow:hover { box-shadow: 0 4px 14px rgba(0,0,0,.15); }
.gallery__arrow--prev { left: 10px; }
.gallery__arrow--next { right: 10px; }

/* ドットインジケーター */
.gallery__dots {
  display: flex; justify-content: center; gap: 6px; margin-bottom: 10px;
}
.gallery__dot {
  width: 6px; height: 6px; border-radius: 100px; padding: 0;
  background: var(--border); border: none; cursor: pointer;
  transition: background .25s, width .25s;
}
.gallery__dot.is-active { background: var(--gold); width: 20px; }

/* サムネイル行 */
.gallery__thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.gallery__thumb {
  width: 64px; height: 64px; border-radius: 8px; overflow: hidden;
  border: 2px solid transparent; cursor: pointer; background: var(--cream);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: border-color .2s;
}
.gallery__thumb.is-active { border-color: var(--gold); }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }

/* ── 右：商品情報 ────────────────────────────────────────── */
.product-info__cats {
  display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px;
}
.product-cat-tag {
  display: inline-block; font-size: 10px; font-weight: 500; letter-spacing: .06em;
  padding: 3px 10px; border-radius: 100px;
  border: 1px solid var(--border); color: var(--text-mid); background: #fff;
  transition: border-color .2s, color .2s, background .2s;
}
.product-cat-tag:hover { border-color: var(--gold); color: var(--gold); background: var(--gold-pale); }

.product-info__name {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(20px, 2.5vw, 26px); font-weight: 500;
  letter-spacing: .06em; line-height: 1.5; color: var(--text); margin-bottom: 10px;
}
.product-info__tagline { font-size: 13px; line-height: 1.9; color: var(--text-mid); margin-bottom: 8px; }
.product-info__volume {
  font-size: 11px; color: var(--text-light);
  border-left: 2px solid var(--border); padding-left: 8px;
  margin-bottom: 14px; letter-spacing: .04em;
}
.product-info__rating {
  display: flex; align-items: center; gap: 10px; font-size: 13px; margin-bottom: 20px;
}
.stars { color: var(--gold); letter-spacing: .05em; font-size: 15px; }
.rating-score { font-weight: 700; color: var(--text); }
.rating-count { color: var(--text-light); font-size: 12px; text-decoration: underline; cursor: pointer; }

/* キャンペーンバナー */
.campaign-banner {
  display: flex; align-items: center; gap: 10px;
  background: var(--gold-pale); border: 1px solid #e0c880;
  border-radius: 6px; padding: 10px 14px; margin-bottom: 24px;
  font-size: 12px; color: #7a5c1a;
}
.campaign-banner__label {
  background: var(--gold); color: #fff; font-size: 10px; font-weight: 700;
  padding: 2px 8px; border-radius: 3px; white-space: nowrap; letter-spacing: .04em;
}

/* ── 購入ボックス ────────────────────────────────────────── */
.purchase-box { border: 1px solid var(--border); border-radius: 12px; padding: 24px; }

/* 購入方式セレクター */
.purchase-type { margin-bottom: 20px; }
.purchase-type__label { font-size: 12px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.purchase-type__options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.pur-option {
  border: 2px solid var(--border); border-radius: 8px; padding: 14px 16px;
  cursor: pointer; transition: border-color .15s, background .15s; position: relative;
}
.pur-option:hover { border-color: var(--gold); }
.pur-option.is-active { border-color: var(--gold); background: var(--gold-pale); }
.pur-option__type { font-size: 13px; font-weight: 700; display: block; margin-bottom: 4px; }
.pur-option__price {
  font-size: 20px; font-weight: 600; font-family: 'Shippori Mincho', serif;
  display: block; line-height: 1.3; margin-top: 2px;
}
.pur-option__badge {
  position: absolute; top: -1px; right: -1px;
  background: #d94f4f; color: #fff; font-size: 10px; font-weight: 700;
  padding: 2px 8px; border-radius: 0 8px 0 6px; letter-spacing: .04em;
}
.pur-option__inner { display: flex; align-items: flex-start; gap: 8px; }
.pur-option__dot {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--border); flex-shrink: 0;
  margin-top: 2px; display: flex; align-items: center; justify-content: center;
  transition: border-color .15s;
}
.pur-option.is-active .pur-option__dot { border-color: var(--gold); }
.pur-option.is-active .pur-option__dot::after {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold); display: block;
}

/* 数量 */
.qty-selector { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.qty-label { font-size: 12px; font-weight: 700; color: var(--text); }
.qty-ctrl {
  display: flex; align-items: center;
  border: 1px solid var(--border); border-radius: 6px; overflow: hidden;
}
.qty-btn {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: var(--text-mid); background: var(--cream); cursor: pointer;
  transition: background .15s;
}
.qty-btn:hover { background: var(--beige); }
.qty-num {
  width: 48px; text-align: center; font-size: 14px; font-weight: 700;
  border-left: 1px solid var(--border); border-right: 1px solid var(--border);
  height: 36px; line-height: 36px;
}

/* カートボタン */
.btn-cart {
  width: 100%; padding: 16px; border-radius: 8px;
  background: var(--text); color: #fff; font-size: 15px; font-weight: 700;
  letter-spacing: .06em; display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: background .2s; margin-bottom: 10px; text-decoration: none;
}
.btn-cart:hover { background: #444; }
.btn-cart svg { width: 20px; height: 20px; flex-shrink: 0; }
.return-note {
  font-size: 11px; color: var(--text-light); text-align: center;
  border-top: 1px solid var(--border); padding-top: 12px;
}

/* 重要事項アコーディオン */
.notice-acc { border: 1px solid #e8c0c0; border-radius: 8px; margin-top: 16px; overflow: hidden; }
.notice-acc__btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 11px 14px; background: #fff8f8; cursor: pointer;
  font-size: 12px; font-weight: 700; color: #c0392b; letter-spacing: .03em;
  border: none; text-align: left; transition: background .15s;
}
.notice-acc__btn:hover { background: #fff0f0; }
.notice-acc__icon {
  width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid #c0392b;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.notice-acc__icon svg { transition: transform .25s; }
.notice-acc.is-open .notice-acc__icon svg { transform: rotate(45deg); }
.notice-acc__body { max-height: 0; overflow: hidden; transition: max-height .35s cubic-bezier(.4,0,.2,1); }
.notice-acc.is-open .notice-acc__body { max-height: 1200px; }
.notice-acc__content {
  padding: 14px 16px 16px; border-top: 1px solid #f0d0d0;
  font-size: 11px; line-height: 1.85; color: var(--text-mid);
}
.notice-acc__content ul { padding-left: 1.2em; list-style: disc; margin-bottom: 12px; }
.notice-acc__content li { margin-bottom: 6px; }
.notice-acc__content li:last-child { margin-bottom: 0; }
.notice-acc__section-title {
  font-size: 11px; font-weight: 700; color: var(--text);
  margin: 12px 0 6px;
}
.notice-acc__section-title:first-child { margin-top: 0; }
.notice-acc__section-title--em { color: #c0392b; }
.notice-acc__lead { font-size: 11px; line-height: 1.85; color: var(--text-mid); margin-bottom: 8px; }
.notice-acc__tel { margin-top: 12px; font-size: 11px; color: var(--text-mid); line-height: 1.9; }
.notice-acc__tel strong { font-size: 13px; color: var(--text); }

/* ══════════════════════════════════════════════════════════
   ヒーローセクション
══════════════════════════════════════════════════════════ */
.pc-hero { background: #1E3C30; }
.pc-hero__kv {
  position: relative; min-height: 600px;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.pc-hero__kv-ph {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #152b22 0%, #2a4a38 40%, #1a3428 100%);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; color: rgba(255,255,255,.18); font-size: 12px; letter-spacing: .12em;
}
.pc-hero__kv-ph svg { opacity: .25; }
.pc-hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to bottom, rgba(0,0,0,.08) 0%, rgba(20,50,38,.55) 60%, rgba(18,44,34,.75) 100%);
}
.pc-hero__content {
  position: relative; z-index: 2; text-align: center;
  padding: 100px var(--pad) 80px; max-width: 860px;
}
.pc-hero__eyebrow {
  display: block; font-family: 'Cormorant Garamond', serif;
  font-size: 11px; font-weight: 400; letter-spacing: .4em;
  color: rgba(196,163,90,.85); text-transform: uppercase; margin-bottom: 24px;
}
.pc-hero__title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(30px, 4.5vw, 54px); font-weight: 500;
  color: #fff; line-height: 1.5; letter-spacing: .08em; margin-bottom: 24px;
}
.pc-hero__sub { font-size: 14px; color: rgba(255,255,255,.65); line-height: 2.2; margin-bottom: 48px; }
.pc-hero__scroll {
  display: inline-flex; flex-direction: column; align-items: center; gap: 10px;
  color: rgba(255,255,255,.45); font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; transition: color .2s; text-decoration: none;
}
.pc-hero__scroll:hover { color: rgba(255,255,255,.8); }
.pc-hero__scroll svg { animation: heroScroll 1.6s ease-in-out infinite; }
@keyframes heroScroll {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

/* 動画エリア */
.pc-hero__video-wrap {
  background: #fff; padding: 80px var(--pad);
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.pc-hero__video-label {
  font-family: 'Cormorant Garamond', serif; font-size: 11px;
  letter-spacing: .3em; color: var(--gold); text-transform: uppercase;
  margin-bottom: 8px; text-align: center;
}
.pc-hero__video-title {
  font-family: 'Shippori Mincho', serif; font-size: clamp(16px, 2vw, 22px);
  font-weight: 500; color: var(--text); letter-spacing: .06em;
  text-align: center; margin-bottom: 32px;
}
.pc-hero__video-ph {
  width: 100%; max-width: 480px; aspect-ratio: 9 / 16;
  background: #0d1f18; border-radius: 16px; overflow: hidden; position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,.18);
}
.pc-hero__video-ph iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: none; border-radius: 16px;
}

/* ══════════════════════════════════════════════════════════
   LP 共通セクション
══════════════════════════════════════════════════════════ */
.lp-sec { padding: 88px 0; }
.lp-sec--cream     { background: var(--cream); }
.lp-sec--off-white { background: var(--off-white); }
.lp-sec--dark      { background: #1E3C30; }
.lp-sec__head  { text-align: center; margin-bottom: 56px; }

.lp-eyebrow {
  display: block; font-family: 'Cormorant Garamond', serif;
  font-size: 11px; letter-spacing: .3em; color: var(--gold);
  text-transform: uppercase; margin-bottom: 14px;
}
.lp-h2 {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(20px, 3vw, 30px); font-weight: 500;
  line-height: 1.7; letter-spacing: .06em; color: var(--text);
}
.lp-h2 em {
  font-style: normal;
  background: linear-gradient(transparent 60%, rgba(196,163,90,.3) 60%);
}
.lp-lead { font-size: 14px; line-height: 2.3; color: var(--text-mid); margin-top: 24px; }

/* お悩みカード */
.pc-issues-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pc-issue-card {
  background: #fff; border-radius: 12px; padding: 28px 22px 24px;
  border-bottom: 3px solid var(--gold);
}
.pc-issue-card__no {
  font-family: 'Shippori Mincho', serif; font-size: 22px; font-weight: 600;
  color: var(--gold); line-height: 1; margin-bottom: 12px; letter-spacing: .05em;
}
.pc-issue-card__title {
  font-family: 'Shippori Mincho', serif; font-size: 15px;
  font-weight: 500; margin-bottom: 10px; line-height: 1.6;
}
.pc-issue-card__body { font-size: 12px; line-height: 2; color: var(--text-mid); }

/* 2カラムフィーチャー（成分紹介） */
.lp-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.lp-feature--rev { direction: rtl; }
.lp-feature--rev > * { direction: ltr; }
.lp-feature__visual {
  background: var(--beige); border-radius: 16px;
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-light); font-size: 13px; text-align: center; line-height: 2;
  overflow: hidden;
}
.lp-feature__title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(20px, 2.5vw, 28px); font-weight: 500;
  line-height: 1.5; letter-spacing: .05em; margin-bottom: 16px;
}
.lp-feature__body { font-size: 13px; line-height: 2.3; color: var(--text-mid); }

/* ── FAQ ────────────────────────────────────────────────── */
.faq-list { }
.faq-item { border-top: 1px solid var(--border); }
.faq-item:last-child { border-bottom: 1px solid var(--border); }
.faq-q {
  display: flex; align-items: center; gap: 14px; padding: 18px 0;
  cursor: pointer; font-size: 14px; list-style: none;
}
.faq-icon-q {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--gold); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Shippori Mincho', serif; font-size: 14px; font-weight: 600;
}
.faq-icon-a {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--sage-pale); color: var(--sage);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Shippori Mincho', serif; font-size: 14px; font-weight: 600;
}
.faq-q-text { flex: 1; font-family: 'Shippori Mincho', serif; font-weight: 500; line-height: 1.5; }
.faq-chevron { flex-shrink: 0; transition: transform .25s; color: var(--text-light); }
.faq-item.is-open .faq-chevron { transform: rotate(180deg); }
.faq-a {
  display: flex; gap: 14px; padding: 0;
  overflow: hidden; max-height: 0; transition: max-height .3s cubic-bezier(.4,0,.2,1), padding .3s;
}
.faq-item.is-open .faq-a { max-height: 400px; padding: 4px 0 20px; }
.faq-a-text { font-size: 13px; color: var(--text-mid); line-height: 1.8; padding-top: 4px; }

/* ── 安心ポイント ─────────────────────────────────────────── */
.lp-service { background: var(--off-white); }
.lp-service__list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  max-width: 760px; margin: 0 auto;
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.lp-service__item {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 28px 24px; border-bottom: 1px solid var(--border);
  background: #fff;
}
.lp-service__item:nth-child(odd) { border-right: 1px solid var(--border); }
.lp-service__item:last-child,
.lp-service__item:nth-last-child(2):nth-child(odd) { border-bottom: none; }
.lp-service__icon {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 50%;
  background: var(--cream); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; color: var(--gold);
}
.lp-service__title { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.lp-service__body { font-size: 12px; color: var(--text-mid); line-height: 1.9; }
.lp-service__link {
  font-size: 12px; color: var(--gold); margin-top: 6px;
  display: inline-flex; align-items: center; gap: 4px;
}

/* ── CTA ─────────────────────────────────────────────────── */
.lp-cta { background: linear-gradient(135deg, #1E3C30 0%, #2a4a38 100%); text-align: center; }
.lp-cta__title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(22px, 3vw, 34px); font-weight: 500;
  color: #fff; line-height: 1.65; margin-bottom: 14px; letter-spacing: .06em;
}
.lp-cta__sub { font-size: 13px; color: rgba(255,255,255,.55); margin-bottom: 40px; line-height: 2; }
.lp-cta__btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.lp-cta__btn-main {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--gold); color: #fff; font-size: 15px; font-weight: 700;
  padding: 18px 44px; border-radius: 100px; letter-spacing: .05em;
  text-decoration: none; transition: background .2s;
}
.lp-cta__btn-main:hover { background: #b0904a; }
.lp-cta__btn-sub {
  display: inline-flex; align-items: center; gap: 10px;
  background: transparent; color: #fff; font-size: 14px; font-weight: 500;
  padding: 17px 32px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,.3); letter-spacing: .04em;
  text-decoration: none; transition: border-color .2s, background .2s;
}
.lp-cta__btn-sub:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.06); }
.lp-cta__note { font-size: 11px; color: rgba(255,255,255,.35); }

/* ══════════════════════════════════════════════════════════
   関連商品
══════════════════════════════════════════════════════════ */
.related-sec { padding: 72px 0; background: var(--cream); }
.related-sec--tabs { padding: 56px 0; background: var(--off-white); border-top: 1px solid var(--border); }
.related-sec__head { margin-bottom: 40px; }
.related-sec__title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.related-sec__sub { font-size: 13px; color: var(--text-mid); letter-spacing: .04em; }

/* 横スクロールラッパー */
.related-grid-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 calc(-1 * var(--pad));
  padding: 0 var(--pad) 4px;
}
.related-grid-wrap::-webkit-scrollbar { display: none; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  min-width: max-content;
}

/* カード */
.related-card {
  width: 200px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s, border-color .2s;
}
.related-card:hover { border-color: var(--gold); box-shadow: 0 4px 20px rgba(196,163,90,.12); }

.related-card__img-link { display: block; aspect-ratio: 1; overflow: hidden; background: var(--cream); }
.related-card__img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.related-card__img-link:hover .related-card__img { transform: scale(1.04); }
.related-card__img-ph {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--text-light); text-align: center;
  padding: 12px; line-height: 1.6;
}

.related-card__body { padding: 14px 14px 16px; display: flex; flex-direction: column; flex: 1; gap: 5px; }
.related-card__series { font-size: 10px; color: var(--text-light); letter-spacing: .06em; }
.related-card__name {
  font-family: 'Shippori Mincho', serif;
  font-size: 13px; font-weight: 500;
  color: var(--text-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  line-height: 1.5;
}
.related-card__name:hover { color: var(--gold); }
.related-card__price { font-size: 13px; font-weight: 700; color: var(--text-dark); margin-top: 2px; }
.related-card__stars { font-size: 12px; display: flex; align-items: center; gap: 3px; flex-wrap: wrap; }
.star--full, .star--half { color: var(--gold); }
.star--empty { color: var(--beige); }
.related-card__stars-meta { font-size: 11px; color: var(--text-light); }
.related-card__btn {
  display: block;
  margin-top: auto;
  padding-top: 12px;
  text-align: center;
  background: var(--text-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 10px 0;
  border-radius: 6px;
  transition: background .2s;
  margin-top: 10px;
}
.related-card__btn:hover { background: var(--gold); }

/* ══════════════════════════════════════════════════════════
   まとめ買いカルーセル
══════════════════════════════════════════════════════════ */
.bulk-section { padding: 56px 0; background: var(--off-white); }
.bulk-section__head { margin-bottom: 32px; }
.bulk-section__head h2 {
  font-family: 'Shippori Mincho', serif; font-size: 22px; font-weight: 500;
  letter-spacing: .05em; margin-bottom: 6px;
}
.bulk-section__head p { font-size: 13px; color: var(--text-mid); }

.bulk-carousel { position: relative; }
.bulk-carousel__track-wrap {
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}
.bulk-carousel__track-wrap::-webkit-scrollbar { display: none; }
.bulk-grid { display: flex; gap: 20px; padding: 4px 2px 8px; }

.bulk-carousel__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 38px; height: 38px; border-radius: 50%;
  background: #fff; border: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,.1);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: 2; color: var(--text);
  transition: box-shadow .2s, opacity .25s;
}
.bulk-carousel__nav:hover { box-shadow: 0 4px 18px rgba(0,0,0,.15); }
.bulk-carousel__nav--prev { left: -20px; }
.bulk-carousel__nav--next { right: -20px; }

.bulk-carousel__dots { display: flex; justify-content: center; gap: 6px; margin-top: 20px; }
.bulk-carousel__dot {
  width: 6px; height: 6px; border-radius: 100px;
  background: var(--border); cursor: pointer; border: none;
  transition: background .25s, width .25s; padding: 0;
}
.bulk-carousel__dot.is-active { background: var(--gold); width: 20px; }

.bulk-card {
  flex: 0 0 calc(33.333% - 14px); min-width: 0;
  background: #fff; border: 2px solid var(--border); border-radius: 14px;
  padding: 28px 24px; text-align: center; position: relative;
  transition: border-color .2s; display: flex; flex-direction: column;
  scroll-snap-align: start;
}
.bulk-card:hover { border-color: var(--gold); }
.bulk-card--best { border-color: var(--gold); box-shadow: 0 4px 24px rgba(196,163,90,.15); }

.bulk-card__ribbon {
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 20px; border-radius: 0 0 8px 8px; letter-spacing: .06em; white-space: nowrap;
}
.bulk-card__qty {
  font-family: sans-serif; font-size: 14px; font-weight: 700;
  color: var(--text); letter-spacing: .04em; margin-bottom: 12px; margin-top: 8px;
}
.bulk-card--best .bulk-card__qty { margin-top: 20px; }
.bulk-card__img-wrap {
  width: 100%; aspect-ratio: 1 / 1; overflow: hidden;
  border-radius: 8px; margin-bottom: 16px; background: var(--cream);
}
.bulk-card__img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bulk-card__imgs {
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; min-height: 80px;
}
.bulk-card__img-item {
  width: 56px; height: 72px; background: var(--cream); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 9px; color: var(--text-light); text-align: center; line-height: 1.4;
  border: 1px solid var(--beige); margin: 0 -4px;
}
.bulk-card__discount {
  display: inline-block; background: #d94f4f; color: #fff;
  font-size: 13px; font-weight: 700; padding: 3px 14px; border-radius: 100px;
  margin-bottom: 12px; letter-spacing: .04em;
}
.bulk-card__price-original { font-size: 12px; color: var(--text-light); text-decoration: line-through; margin-bottom: 4px; }
.bulk-card__price {
  font-family: 'Shippori Mincho', serif; font-size: 34px; font-weight: 600;
  color: var(--text); line-height: 1;
}
.bulk-card__price-unit { font-size: 12px; color: var(--text-mid); margin-bottom: 4px; }
.bulk-card__per {
  font-size: 11px; color: var(--text-light);
  flex: 1; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 20px;
}
.bulk-card__per strong { color: var(--gold); font-weight: 700; }

.btn-sm {
  display: block; width: 100%; text-align: center; padding: 14px;
  background: var(--text); color: #fff; border-radius: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  transition: background .2s; text-decoration: none;
}
.btn-sm:hover { background: #444; }
.bulk-card--best .btn-sm { background: var(--gold); }
.bulk-card--best .btn-sm:hover { background: #b0904a; }

/* ══════════════════════════════════════════════════════════
   関連コラム
══════════════════════════════════════════════════════════ */
.lp-columns-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lp-col-card {
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--border); background: #fff;
  transition: box-shadow .2s; display: block; text-decoration: none;
}
.lp-col-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.lp-col-card__img {
  aspect-ratio: 16 / 9; background: var(--cream);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--text-light); overflow: hidden;
}
.lp-col-card__body { padding: 20px; }
.lp-col-card__tags { display: flex; gap: 6px; margin-bottom: 10px; flex-wrap: wrap; }
.lp-col-card__tag {
  font-size: 10px; background: var(--sage-pale); color: var(--sage);
  padding: 2px 10px; border-radius: 100px;
}
.lp-col-card__title {
  font-family: 'Shippori Mincho', serif; font-size: 15px; font-weight: 500;
  line-height: 1.65; margin-bottom: 12px; color: var(--text);
}
.lp-col-card__meta { font-size: 11px; color: var(--text-light); }

/* ══════════════════════════════════════════════════════════
   フローティング購入ボタン
══════════════════════════════════════════════════════════ */
.float-cta {
  position: fixed; bottom: 24px; right: 24px; z-index: 300;
  opacity: 0; pointer-events: none;
  transform: translateY(10px);
  transition: opacity .3s, transform .3s;
}
.float-cta.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.float-cta__inner { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.float-cta__info { display: none; }
.float-cta__btns { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.float-cta__btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: 100px;
  font-size: 12px; font-weight: 700; letter-spacing: .03em;
  white-space: nowrap; cursor: pointer; text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
  transition: opacity .2s, transform .15s, box-shadow .2s;
}
.float-cta__btn:hover { opacity: .85; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.22); }
.float-cta__btn--sub { background: var(--gold); color: #fff; }
.float-cta__btn--reg {
  background: rgba(255,255,255,.95); color: var(--text);
  border: 1px solid var(--border); font-weight: 500;
}

/* ══════════════════════════════════════════════════════════
   商品詳細タブ（特徴 / 使い方 / 成分）
══════════════════════════════════════════════════════════ */
.product-detail {
  background: #fff;
  border-top: 1px solid var(--border);
}

/* タブナビ */
.detail-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  position: sticky;
  top: 60px;
  background: #fff;
  z-index: 90;
}
.detail-tabs::-webkit-scrollbar { display: none; }

.detail-tab {
  flex-shrink: 0;
  padding: 16px 24px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Shippori Mincho', serif;
  letter-spacing: .04em;
  color: var(--text-mid);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s, border-color .2s;
}
.detail-tab:hover { color: var(--text); }
.detail-tab.is-active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* パネル（非表示 → 表示切替） */
.detail-panel { display: none; padding: 48px 0; }
.detail-panel.is-active { display: block; }

/* ─ 特徴パネル ──────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--cream);
  border-radius: 12px;
  padding: 28px 24px;
  border-bottom: 3px solid var(--gold);
}
.feature-card__no {
  font-family: 'Shippori Mincho', serif;
  font-size: 36px;
  font-weight: 600;
  color: rgba(196,163,90,.25);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: .02em;
}
.feature-card__title {
  font-family: 'Shippori Mincho', serif;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-card__body {
  font-size: 13px;
  line-height: 2;
  color: var(--text-mid);
}

/* ─ 使い方パネル ────────────────────────────────────── */
.howto-list {
  max-width: 700px;
  margin: 0 auto;
}
.howto-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.howto-item:last-child { border-bottom: none; }
.howto-item__title {
  font-family: 'Shippori Mincho', serif;
  font-size: 15px;
  font-weight: 500;
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.howto-step__amount {
  display: inline-block;
  background: var(--sage-pale);
  color: var(--sage);
  font-size: 11px;
  font-weight: 700;
  font-family: sans-serif;
  padding: 2px 10px;
  border-radius: 100px;
  letter-spacing: .04em;
}
.howto-item__desc {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.9;
  margin: 0;
}

/* ─ 成分パネル ──────────────────────────────────────── */
.all-ingredients {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.9;
  color: var(--text-light);
  letter-spacing: .03em;
}
.all-ingredients h4 {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-mid);
  margin-bottom: 8px;
}

/* ─ レビューパネル ──────────────────────────────────── */
.review-summary {
  display: flex; align-items: center; gap: 40px;
  padding: 28px; background: var(--cream); border-radius: 12px;
  margin-bottom: 28px;
}
.review-big-score { text-align: center; flex-shrink: 0; }
.review-big-num {
  font-family: 'Shippori Mincho', serif; font-size: 54px;
  font-weight: 600; line-height: 1; color: var(--text);
}
.review-big-stars { color: var(--gold); font-size: 18px; margin: 6px 0 4px; }
.review-big-count { font-size: 11px; color: var(--text-light); }

.review-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review-card {
  border: 1px solid var(--border); border-radius: 10px; padding: 20px;
}
.review-card__header {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 10px;
}
.review-card__name { font-size: 13px; font-weight: 700; color: var(--text); }
.review-card__age { font-size: 11px; color: var(--text-light); margin-top: 2px; }
.review-card__stars { color: var(--gold); font-size: 13px; flex-shrink: 0; }
.review-card__tag {
  display: inline-block; font-size: 10px;
  padding: 2px 10px; background: var(--gold-pale); color: var(--gold);
  border-radius: 100px; margin-bottom: 10px;
}
.review-card__text { font-size: 12px; color: var(--text-mid); line-height: 1.8; }

/* ── 品質コミットメント（ダーク背景） ─────────────── */
.lp-quality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lp-quality-item {
  text-align: center; padding: 36px 20px;
  border: 1px solid rgba(255,255,255,.1); border-radius: 12px;
}
.lp-quality-item__icon {
  width: 52px; height: 52px; margin: 0 auto 16px;
  background: rgba(196,163,90,.15); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
}
/* 丸抜き画像 */
.lp-quality-item__img-wrap {
  width: 96px; height: 96px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 20px;
  border: 2px solid rgba(196,163,90,.4);
  box-shadow: 0 0 0 4px rgba(196,163,90,.1);
}
.lp-quality-item__img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.lp-quality-item__title {
  font-family: 'Shippori Mincho', serif; font-size: 16px;
  font-weight: 500; color: #fff; margin-bottom: 10px;
}
.lp-quality-item__body { font-size: 12px; line-height: 2; color: rgba(255,255,255,.55); }

/* ══════════════════════════════════════════════════════════
   Responsive
══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .product-top { grid-template-columns: 1fr; gap: 32px; }
  .gallery { position: static; }
  .lp-feature { grid-template-columns: 1fr; gap: 32px; }
  .lp-feature--rev { direction: ltr; }
  .pc-issues-grid { grid-template-columns: 1fr; }
  .lp-quality-grid { grid-template-columns: 1fr; }
  .lp-columns-grid { grid-template-columns: repeat(2, 1fr); }
  .lp-sec { padding: 56px 0; }
  .lp-sec__head { margin-bottom: 36px; }
  .lp-cta__btns { flex-direction: column; align-items: center; }

  /* 商品詳細タブ */
  .detail-tabs { top: 0; }
  .detail-tab { padding: 14px 18px; font-size: 12px; }
  .detail-panel { padding: 32px 0; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .howto-list { max-width: 100%; }
  .review-summary { flex-direction: column; gap: 20px; }
  .review-cards { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .related-sec { padding: 48px 0; }
  .related-card { width: 160px; }
  .pc-hero__kv { min-height: 420px; }
  .pc-hero__title { font-size: clamp(24px, 7vw, 36px); }
  .bulk-card { flex: 0 0 82%; scroll-snap-align: center; }
  .bulk-carousel__nav { display: none; }
  .float-cta {
    bottom: 0; right: 0; left: 0;
    transform: translateY(100%);
    background: rgba(255,255,255,.97); backdrop-filter: blur(12px);
    border-top: 1px solid var(--border); padding: 10px 16px 14px;
    border-radius: 0;
  }
  .float-cta.is-visible { transform: translateY(0); opacity: 1; }
  .float-cta__inner { flex-direction: row; gap: 8px; align-items: stretch; }
  .float-cta__btns { flex-direction: row; flex: 1; gap: 8px; }
  .float-cta__btn { flex: 1; justify-content: center; border-radius: 8px; padding: 12px 8px; box-shadow: none; }
  .float-cta__btn--reg { display: none; }
}
@media (max-width: 640px) {
  .lp-service__list { grid-template-columns: 1fr; }
  .lp-service__item:nth-child(odd) { border-right: none; }
  .lp-columns-grid { grid-template-columns: 1fr; }
  .purchase-type__options { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   フッター前プロモーションバナー（全商品共通）
══════════════════════════════════════════════════════════ */
.promo-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 48px var(--pad);
  max-width: 1100px;
  margin: 0 auto;
  box-sizing: border-box;
}
.promo-banner__card {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 36px 32px;
  border-radius: 16px;
  text-decoration: none;
  min-height: 210px;
  transition: opacity .2s, transform .25s;
}
.promo-banner__card:hover { opacity: .92; transform: translateY(-3px); }
.promo-banner__card--sub    { background: #1e3a2f; }
.promo-banner__card--member { background: linear-gradient(135deg, #c8a660 0%, #8b6224 100%); }
.promo-banner__eyebrow {
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  margin-bottom: 12px;
}
.promo-banner__title {
  font-family: 'Shippori Mincho', serif;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  color: #fff;
  line-height: 1.55;
  letter-spacing: .04em;
  margin-bottom: 22px;
}
.promo-banner__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(255,255,255,.78);
  border-bottom: 1px solid rgba(255,255,255,.35);
  padding-bottom: 3px;
}
@media (max-width: 640px) {
  .promo-banner {
    grid-template-columns: 1fr;
    padding: 32px var(--pad);
    gap: 14px;
  }
  .promo-banner__card {
    min-height: 160px;
    padding: 28px 24px;
  }
}