:root{
  --brand:#1a73e8;
  --gradient: linear-gradient(90deg,#1a73e8,#8a2be2);
  --text:#1f2937; --muted:#6b7280; --bg:#fff; --border:#e5e7eb;
  --price:#d0011b; --chip:#f5f5f5; --elev:0 6px 24px rgba(0,0,0,.06);
}
*{box-sizing:border-box} body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;color:var(--text);background:var(--bg)}
.container{width:min(100%,1150px);margin-inline:auto;padding:0 16px}
.topbar{background:#0b57cf;color:#fff;font-size:12px}
.topbar-inner{display:flex;justify-content:space-between;padding:8px 0}
.tb-link{color:#fff;text-decoration:none;margin-right:12px;opacity:.9}
.tb-link:hover{opacity:1}
.header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none}
.heart{width:28px;height:28px;background:var(--gradient);border-radius:6px;display:inline-block}
.brand-text{font-weight:700;color:var(--text)}
.search{display:flex;flex:1;gap:8px}
.search input{flex:1;padding:10px 12px;border:2px solid var(--brand);border-radius:8px}
.search button{background:var(--brand);color:#fff;border:none;border-radius:8px;padding:10px 16px;cursor:pointer}
.actions .act{margin-left:12px;text-decoration:none;color:var(--text)}
.nav{background:#f7f8ff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;gap:18px;padding:10px 0}
.nav-link{color:#334155;text-decoration:none}
.breadcrumbs{font-size:12px;color:var(--muted);margin:10px 0}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.main{padding:12px 0}
.grid{display:grid;grid-template-columns:320px 1fr 300px;gap:16px}
.gallery{background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px;box-shadow:var(--elev)}
.thumbs{display:flex;gap:10px;margin-bottom:10px;overflow:auto}
.thumb{width:60px;height:60px;border-radius:6px;border:1px solid var(--border);cursor:pointer;object-fit:cover}
.thumb.active{outline:2px solid var(--brand)}
.viewer{position:relative}
.viewer img{width:100%;border-radius:10px;border:1px solid var(--border)}
.zoom{position:absolute;right:10px;bottom:10px;background:#0008;color:#fff;border:none;border-radius:8px;padding:8px 10px;cursor:pointer}
.promo-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.pcard{background:#f8fafc;border:1px dashed var(--border);border-radius:10px;padding:10px}
.details{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px;box-shadow:var(--elev)}
.title{font-size:22px;margin:0 0 6px}
.rating{display:flex;gap:10px;align-items:center;color:#f59e0b}
.stars{letter-spacing:2px}
.rv-link{color:var(--brand);text-decoration:none}
.sold{color:var(--muted)}
.price-wrap{display:flex;align-items:center;gap:10px;margin:10px 0;flex-wrap:wrap}
.price{font-size:28px;color:var(--price);font-weight:700}
.badge{background:#eef2ff;border:1px solid var(--border);padding:2px 8px;border-radius:20px;font-size:12px;color:#334155}
.variant{display:grid;grid-template-columns:140px 1fr;gap:10px;align-items:center;margin-top:12px}
.v-label{color:var(--muted)}
.chip{background:var(--chip);border:1px solid var(--border);border-radius:18px;padding:8px 12px;margin:4px;cursor:pointer}
.chip.selected{outline:2px solid var(--brand);background:#eef7ff}
.ship{border:1px solid var(--border);border-radius:10px;padding:10px;margin-top:12px;background:#fbfbff}
.ship-row{display:flex;justify-content:space-between;font-size:14px;padding:6px 0}
.buy{display:flex;gap:10px;align-items:center;margin-top:16px;flex-wrap:wrap}
.qty{display:flex;align-items:center;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.q{background:#f3f4f6;border:none;width:36px;height:36px;cursor:pointer}
#qty{width:50px;text-align:center;border:none;height:36px}
.btn{border:none;border-radius:10px;padding:10px 14px;cursor:pointer}
.btn.primary{background:var(--brand);color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--brand);color:var(--brand)}
.benefits{display:flex;gap:16px;flex-wrap:wrap;color:#334155;margin-top:12px;padding-left:18px}
.seller-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px;box-shadow:var(--elev)}
.seller-head{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.s-name{font-weight:700}
.s-meta{color:var(--muted);font-size:12px}
.s-stats{display:flex;gap:12px;margin:8px 0}
.s-stats div{background:#f8fafc;border:1px solid var(--border);border-radius:8px;padding:8px 10px;text-align:center}
.s-actions{display:flex;gap:8px}
.btn.small{padding:8px 10px;font-size:12px}
.desc,.reviews{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px;margin-top:16px;box-shadow:var(--elev)}
.desc h2,.reviews h2{margin-top:0}
.specs{padding-left:18px}
.rv-item{border-top:1px dashed var(--border);padding:10px 0}
.footer{background:#0b1220;color:#cbd5e1;margin-top:24px}
.f-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;padding:24px 0}
.footer h4{margin:0 0 8px;color:#fff}
.footer a{color:#cbd5e1;text-decoration:none}
.copy{border-top:1px solid #1f2a44;padding:12px 0;text-align:center;font-size:12px}
/* Sticky bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:-80px;background:#fff;border-top:1px solid var(--border);box-shadow:0 -6px 24px rgba(0,0,0,.06);transition:bottom .25s ease}
.sb-inner{display:flex;align-items:center;gap:12px;padding:10px 16px}
.sb-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-price{font-weight:700;color:var(--price)}
.modal{position:fixed;inset:0;background:#0006;display:none;align-items:center;justify-content:center;padding:16px}
.modal .modal-inner{background:#fff;border-radius:10px;max-width:560px;width:100%;padding:16px;position:relative}
.modal-close{position:absolute;right:10px;top:10px;border:none;background:#eee;border-radius:8px;padding:6px 10px;cursor:pointer}
.size-table{width:100%;border-collapse:collapse}
.size-table th,.size-table td{border:1px solid var(--border);padding:8px;text-align:center}
@media (max-width:1024px){.grid{grid-template-columns:1fr;}.seller{order:3}}
@media (max-width:640px){.promo-cards{grid-template-columns:1fr} .sb-price{display:none}}