.subpage-main { width: min(calc(100% - 40px), 1200px); margin: 0 auto; padding: 70px 0 110px; }
.subpage-hero { max-width: 790px; margin-bottom: 54px; }
.subpage-hero h1 { margin: 0; font-size: clamp(2.5rem, 7vw, 5.2rem); line-height: 1.02; letter-spacing: -.07em; }
.subpage-hero > p:last-child { max-width: 680px; margin: 22px 0 0; color: var(--muted); font-size: 1.06rem; }
.document { max-width: 780px; }
.document h2 { margin: 55px 0 14px; font-size: 1.55rem; letter-spacing: -.04em; }
.document h3 { margin: 32px 0 10px; }
.document p, .document li { color: #48554f; }
.document li + li { margin-top: 8px; }
.document .notice { margin: 28px 0; padding: 20px 22px; border-left: 4px solid var(--focus); background: white; }
.catalog-tools { margin-bottom: 28px; display: flex; gap: 12px; align-items: end; justify-content: space-between; }
.catalog-tools label { display: block; margin-bottom: 6px; font-size: .85rem; font-weight: 750; }
.catalog-tools select { min-height: 44px; padding: 0 36px 0 12px; border: 1px solid var(--line); border-radius: 10px; background: white; }
.search-summary { color: var(--muted); }
.product-detail { margin-top: 34px; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 64px; align-items: start; }
.detail-image { aspect-ratio: 1/ .82; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: white; }
.detail-image img { width: 100%; height: 100%; display: block; object-fit: contain; }
.product-detail h1 { margin: 0; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.25; letter-spacing: -.05em; }
.detail-price { margin: 24px 0 4px; font-size: 2rem; font-weight: 850; }
.price-stats { margin: 30px 0; display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.price-stats div { padding: 17px 10px; border-right: 1px solid var(--line); }
.price-stats div:last-child { border-right: 0; }
.price-stats dt { color: var(--muted); font-size: .78rem; }
.price-stats dd { margin: 4px 0 0; font-weight: 800; }
.purchase-button { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; padding: 0 24px; color: white; border-radius: 12px; background: var(--brand); font-weight: 800; }
.affiliate-note { color: var(--muted); font-size: .75rem; }
@media (max-width: 700px) {
  .subpage-main { width: min(calc(100% - 28px), 1200px); padding-top: 48px; }
  .catalog-tools { align-items: stretch; flex-direction: column; }
  .product-detail { grid-template-columns: 1fr; gap: 32px; }
  .price-stats { grid-template-columns: 1fr; }
  .price-stats div { border-right: 0; border-bottom: 1px solid var(--line); }
}