.product-hero{padding:68px 0;background:linear-gradient(135deg,#f4f9fa 0%,#fff 60%,#eaf3f5 100%);border-bottom:1px solid var(--line)}
.product-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.product-hero-copy h1{font-size:clamp(40px,5vw,64px);line-height:1.05;letter-spacing:-2px;margin:0 0 18px;color:var(--dark)}
.product-hero-lead{font-size:19px;color:#4d5e65;max-width:680px}
.product-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.product-update{font-size:13px;color:var(--muted);margin-top:18px}
.product-hero-image img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;box-shadow:0 22px 60px rgba(16,26,30,.15)}
.product-image-placeholder{display:grid;place-items:center;aspect-ratio:4/3;background:#edf3f4;border-radius:18px;font-weight:900;color:var(--muted)}
.section-soft{background:#f5f8f9}
.content-narrow{max-width:900px}
.product-copy h2{font-size:34px;line-height:1.15;margin:0 0 16px;color:var(--dark)}
.product-copy h3{font-size:23px;margin:28px 0 10px;color:var(--dark)}
.product-copy p{font-size:17px;color:#4c5d64}
.product-copy ul{padding-left:20px}
.product-copy li{margin:7px 0}
.detail-price-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.detail-price-card{position:relative;background:#fff;border:1px solid var(--line);padding:22px;border-radius:14px;box-shadow:0 8px 30px rgba(18,46,56,.05)}
.detail-price-card.is-featured{border:2px solid var(--accent)}
.featured-badge{position:absolute;right:14px;top:14px;background:var(--accent);font-size:11px;font-weight:900;padding:6px 8px;border-radius:6px;color:#151515}
.detail-price-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.detail-price-top h3{margin:0;font-size:20px;color:var(--dark)}
.detail-price-value{font-size:25px;font-weight:900;color:var(--primary);white-space:nowrap}
.detail-price-value small{display:block;font-size:11px;color:var(--muted);text-align:right}
.detail-price-card p{margin:15px 0 8px;color:var(--muted);font-size:14px}
.price-date{font-size:11px;color:#829198}
.empty-price-box{background:#fff;border:1px dashed #b9c8cd;border-radius:12px;padding:24px;color:var(--muted)}
.visual-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.visual-grid img{width:100%;border-radius:16px;aspect-ratio:4/3;object-fit:cover}
.visual-grid h2{font-size:38px;line-height:1.1;margin:0 0 15px}
.light-copy h2,.light-copy h3{color:#fff}
.light-copy p,.light-copy li{color:#c1cdd1}
.other-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.other-products a{display:flex;justify-content:space-between;gap:12px;padding:16px 18px;border:1px solid var(--line);border-radius:10px;font-weight:900;color:var(--primary);background:#fff}
.other-products a:hover{background:var(--primary-soft)}
@media(max-width:850px){
    .product-hero-inner,.visual-grid{grid-template-columns:1fr}
    .detail-price-grid{grid-template-columns:1fr}
    .other-products{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:600px){
    .detail-price-top{display:block}
    .detail-price-value{margin-top:10px}
    .detail-price-value small{text-align:left}
    .other-products{grid-template-columns:1fr}
}