:root{--bg:#f7f7f8;--text:#111827;--subtle:#6b7280;--muted:#9ca3af;--border:#e5e7eb;--card:#ffffff;--accent:#111827}*{box-sizing:border-box}body,html{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg)}.container{max-width:1200px;margin:0 auto;padding:24px 16px}.breadcrumbs{font-size:12px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.breadcrumbs a{color:inherit;text-decoration:none}.breadcrumbs .sep{color:var(--border)}.header-brand{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px 0 24px}.brand{display:inline-flex;align-items:center;gap:10px}.brand .logo{width:120px;height:28px;display:inline-block;background:var(--text);border-radius:4px;position:relative}.brand .logo:after{content:"";position:absolute;left:8px;right:8px;top:50%;height:2px;transform:translateY(-50%);background:#fff}.brand .brand-logo{height:28px;width:auto;display:block}.header-brand h1{font-size:20px;font-weight:700;margin:0}.product-grid{display:grid;grid-template-columns:1fr;gap:24px}@media (min-width:900px){.product-grid{grid-template-columns:560px 1fr;align-items:start}}.product-media{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}.product-media .image-wrap{width:100%;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden;border-radius:8px;background:#fff}.product-media img{width:100%;height:100%;object-fit:contain}.product-summary{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.product-title{font-size:22px;font-weight:700;margin:0 0 8px}.product-sku{font-size:12px;color:var(--muted);margin-bottom:16px}.product-price{font-size:20px;font-weight:700;margin:16px 0 20px}.divider{height:1px;background:var(--border);margin:16px 0}.badges{display:flex;gap:8px;flex-wrap:wrap}.badge{font-size:11px;color:var(--subtle);border:1px solid var(--border);background:#fafafa;padding:6px 8px;border-radius:999px}.section{margin-top:20px}.section h3{font-size:16px;font-weight:700;margin:0 0 8px}.section p{line-height:1.7}.section p,.section ul{margin:0;color:var(--subtle);font-size:14px}.section ul{padding-left:18px}.section li{margin:4px 0}.product-info{margin-top:24px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.info-boxes{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width:900px){.info-boxes{grid-template-columns:repeat(3,1fr)}}.info-box{border:1px solid var(--border);background:#fafafa;border-radius:10px;padding:12px;color:var(--subtle);font-size:13px}.footer-note{margin-top:24px;font-size:12px;color:var(--muted)}.accordion{margin-top:16px}.accordion summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;font-weight:600}.accordion summary::-webkit-details-marker{display:none}.accordion summary:after{content:"+";margin-left:auto;color:var(--subtle);font-weight:700;line-height:1}.accordion[open] summary:after{content:"−"}.accordion-content{margin-top:8px}.buying-options{margin-top:16px;border:1px solid var(--border);background:var(--card);border-radius:10px;padding:16px}.buy-row{display:grid;grid-template-columns:110px 1fr;align-items:center;gap:8px 12px;margin-bottom:12px}.buy-row .label{color:var(--subtle);font-size:13px}.qty-input{width:120px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}.buy-actions{display:flex;flex-direction:column;align-items:stretch;gap:10px;margin:12px 0 8px}.btn{appearance:none;border:1px solid var(--border);background:#fff;color:var(--text);border-radius:8px;padding:10px 14px;font-weight:600;font-size:14px;cursor:pointer}.btn-primary{background:var(--text);color:#fff;border-color:var(--text);width:100%;padding:12px 18px;font-size:15px;border-radius:999px}.btn:hover{filter:brightness(.98)}.btn-primary:hover{filter:brightness(.95)}.btn:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.btn:disabled{opacity:.6;cursor:not-allowed}.buy-links{display:flex;justify-content:center;gap:14px}.btn-ghost{background:transparent;border:none;padding:8px 4px;color:var(--text)}.btn-ghost:hover{text-decoration:underline}.buy-hint{color:var(--muted);font-size:12px}.kv,.kv-list{display:grid;gap:8px}.kv{grid-template-columns:140px 1fr}.kv .k{color:var(--subtle)}.kv .v{color:var(--text)}.richtext{color:var(--subtle);font-size:14px;line-height:1}.richtext p{margin:0}.richtext ol,.richtext ul{margin:0;padding-left:18px}.richtext ul{list-style:disc}.richtext ol{list-style:decimal}.richtext li{margin:0}.richtext a{color:inherit;text-decoration:underline}.richtext strong{color:var(--text);font-weight:600}.richtext em{font-style:italic}.richtext h1,.richtext h2,.richtext h3,.richtext h4,.richtext h5,.richtext h6{margin:4px 0 2px;font-weight:700;color:var(--text)}.richtext h1{font-size:20px}.richtext h2{font-size:18px}.richtext h3{font-size:16px}.richtext h4{font-size:15px}.richtext h5{font-size:14px}.richtext h6{font-size:13px}.richtext table{width:100%;border-collapse:collapse;margin:8px 0}.richtext td,.richtext th{border:1px solid var(--border);padding:6px 8px;font-size:13px}.richtext th{background:#fafafa;color:var(--text);font-weight:600;text-align:left}.richtext img{max-width:100%;height:auto;border-radius:6px}.richtext hr{border:none;border-top:1px solid var(--border);margin:12px 0}