:root{--primary:#111;--primary-dark:#333;--line:#1f1f1f;--soft:#f4f4f4;--ink:#111;--muted:#666;--footer:#111}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.section-inner{width:min(1080px,calc(100% - 30px));margin:0 auto}.product-section{min-height:100vh;display:grid;align-items:center;padding:22px 0 34px}.product-grid{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(340px,.96fr);gap:28px;align-items:start}.product-display{position:relative;display:grid;gap:12px;padding-left:44px}.share-rail{position:absolute;left:0;top:95px;display:grid;gap:8px}.share-rail a{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:#111;color:#fff;font-size:.76rem;font-weight:900;text-transform:uppercase}.main-product-media{width:100%;aspect-ratio:1.08;display:grid;place-items:center;margin:0;overflow:hidden;background:#fafafa}.main-product-media img{width:100%;height:100%;display:block;object-fit:contain}.product-thumbs{display:grid;grid-template-columns:repeat(5,minmax(48px,1fr));gap:9px}.thumb-button{aspect-ratio:1;padding:0;overflow:hidden;border:1px solid #ddd;border-radius:4px;background:#f6f6f6;cursor:pointer}.thumb-button.active,.thumb-button:hover{border-color:var(--line);box-shadow:inset 0 0 0 1px var(--line)}.thumb-button img{width:100%;height:100%;display:block;object-fit:cover}.thumb-button.empty span{display:grid;place-items:center;width:100%;height:100%;color:var(--muted);font-weight:800}.purchase-panel{display:grid;gap:12px}.product-title{margin:0;padding:9px 12px;border:1px solid var(--line);border-radius:7px;color:#111;font-size:clamp(1.02rem,2.5vw,1.35rem);line-height:1.35;font-weight:900}.category-chip{justify-self:start;min-height:26px;display:inline-flex;align-items:center;padding:0 9px;border-radius:999px;background:var(--soft);color:#111;font-size:.78rem;font-weight:900;text-transform:uppercase}.price-line{display:flex;align-items:baseline;gap:10px}.price-line strong{color:var(--primary);font-size:1.32rem;font-weight:950}.price-line del{color:#777;font-size:.94rem}.tagline{margin:0;color:var(--muted);line-height:1.55;font-size:.95rem}.option-group{display:grid;gap:7px}.option-group-title{margin:2px 0 0;font-size:.86rem;font-weight:900}.option-list{display:flex;flex-wrap:wrap;gap:8px}.option-choice{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid #d7d7d7;border-radius:999px;color:#333;font-size:.84rem;cursor:pointer}.option-choice:has(input:checked){border-color:#111;background:#111;color:#fff}.option-choice input{width:14px;height:14px;margin:0;accent-color:#111}.form-note{margin:0;color:var(--muted);font-size:.76rem}.checkout-box{display:grid;gap:12px;padding:16px;border:1px solid var(--line);border-radius:8px}.checkout-box h2{margin:0;text-align:center;font-size:1rem;line-height:1.2}.buy-button,.sticky-buy{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;background:var(--primary);color:#fff;font-size:.88rem;font-weight:950;cursor:pointer}.buy-button:hover,.sticky-buy:hover{background:var(--primary-dark)}.details-section{padding:36px 0 24px}.details-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr);gap:28px;align-items:center}.spec-list{margin:0;padding:0;list-style:none;display:grid;gap:7px;color:#333;font-size:.96rem;line-height:1.35}.services-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;text-align:center}.service-item{display:grid;justify-items:center;gap:7px}.service-item svg{width:62px;height:62px;fill:none;stroke:#000;stroke-width:4;stroke-linecap:round;stroke-linejoin:round}.service-item strong,.service-item span{display:block}.service-item strong{font-size:.84rem;line-height:1.12}.service-item span{color:#333;font-size:.72rem}.footer-section{padding:0 0 70px}.announce-bar{position:fixed;right:0;bottom:0;left:0;z-index:1030;display:grid;grid-template-columns:repeat(3,1fr);background:var(--footer);color:#fff;font-size:.78rem;font-weight:800;text-align:center}.announce-bar span{padding:13px 12px;border-right:1px solid rgba(255,255,255,.24)}.bottom-actions{width:min(980px,calc(100% - 30px));display:grid;grid-template-columns:1fr;margin:12px auto 0}.sticky-buy{min-height:38px}@media(max-width:850px){.section-inner{width:min(100% - 22px,1080px)}.product-section{min-height:auto;padding-top:16px}.product-grid,.details-grid,.bottom-actions{grid-template-columns:1fr}.product-display{padding-left:0}.share-rail{position:static;display:flex;order:3}.main-product-media{aspect-ratio:1}.services-grid,.announce-bar{grid-template-columns:repeat(2,1fr)}}