:root{
  --text:#162032; --muted:#64748b; --line:#e7ebf2; --bg:#f5f7fb;
  --nav:#0f172a; --nav2:#1e293b; --blue:#2563eb; --green:#53b61f; --orange:#f59e0b;
  --red:#ef4444; --card:#ffffff; --soft:#f8fbff;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:linear-gradient(180deg,#f7f9fc 0%,#ffffff 230px) no-repeat #fff;font-size:15px;line-height:1.65}
a{text-decoration:none;color:inherit}
.topbar{background:linear-gradient(90deg,#e8f1ff,#f3f9ff);border-bottom:1px solid #d8e6ff;color:#365278;font-size:13px}
.topbar-inner{max-width:1280px;margin:0 auto;padding:8px 20px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.header{background:#fff;box-shadow:0 8px 30px rgba(15,23,42,.04)}
.header-inner{max-width:1280px;margin:0 auto;padding:20px 20px;display:grid;grid-template-columns:auto minmax(360px,560px) auto;gap:24px;align-items:center}
.logo{display:flex;align-items:center;gap:10px;font-size:31px;font-weight:900;letter-spacing:.3px;white-space:nowrap}
.logo .brand-word{color:#0f172a}
.logo .shop-word{color:#5ab321}
.logo-badge{font-size:12px;background:#eef9e8;color:#348414;border:1px solid #ccecbc;border-radius:999px;padding:3px 8px;font-weight:700}
.searchbar{display:flex;width:100%;border:2px solid #d8e4f7;border-radius:999px;overflow:hidden;background:#fff;box-shadow:0 3px 10px rgba(37,99,235,.05)}
.searchbar input{width:100%;border:0;padding:14px 18px;font-size:15px;outline:none}
.searchbar button{border:0;background:linear-gradient(135deg,#1d4ed8,#2563eb);color:#fff;padding:0 25px;font-weight:800;cursor:pointer}
.header-actions{display:flex;gap:10px;justify-content:flex-end;align-items:center}
.header-action{border:1px solid var(--line);border-radius:999px;padding:10px 14px;background:#fff;color:#334155;font-weight:700;font-size:14px;box-shadow:0 2px 8px rgba(15,23,42,.04)}
.header-action:hover{border-color:#c7d2e3;background:#f8fbff}
.nav{background:linear-gradient(90deg,#0f172a,#172554);color:#fff;box-shadow:0 10px 24px rgba(15,23,42,.12)}
.nav-inner{max-width:1280px;margin:0 auto;display:flex;gap:0;padding:0 20px;align-items:center;overflow:auto}
.nav a{display:block;padding:16px 22px;border-right:1px solid rgba(255,255,255,.08);font-weight:700;white-space:nowrap}
.nav a:hover{background:rgba(255,255,255,.08)}
.container{max-width:1280px;margin:0 auto;padding:28px 20px}
.breadcrumb{color:#64748b;font-size:13px;margin-bottom:18px}
.hero{background:radial-gradient(circle at left top,#eff6ff 0,#ffffff 48%),linear-gradient(135deg,#ffffff,#f7fbff);border:1px solid var(--line);padding:44px 48px;border-radius:18px;margin-bottom:30px;box-shadow:0 12px 34px rgba(15,23,42,.06);position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-50px;top:-50px;width:220px;height:220px;border-radius:999px;background:radial-gradient(circle,#dbeafe 0,#eff6ff 55%,transparent 56%)}
.hero h1{font-size:42px;margin:0;letter-spacing:.4px;position:relative;z-index:1}
.section-row{display:flex;align-items:end;justify-content:space-between;margin:28px 0 18px;gap:16px}
.section-title{font-size:28px;font-weight:900}
.section-sub{color:#64748b;font-size:14px;margin-top:3px}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px}
.category-card{border:1px solid var(--line);padding:24px;background:linear-gradient(180deg,#ffffff,#fbfdff);border-radius:16px;box-shadow:0 8px 24px rgba(15,23,42,.05);transition:.18s;position:relative;overflow:hidden}
.category-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(15,23,42,.1)}
.category-card:after{content:"";position:absolute;right:-24px;top:-24px;width:86px;height:86px;background:#eef9e8;border-radius:999px}
.category-card:nth-child(2):after{background:#e6f3ff}
.category-card:nth-child(3):after{background:#fff4dd}
.category-card:nth-child(4):after{background:#fce7f3}
.category-icon{font-size:30px;margin-bottom:10px}
.category-card b{font-size:19px;position:relative;z-index:1}
.category-card span{display:block;color:#64748b;margin-top:4px;position:relative;z-index:1}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.product-card{border:1px solid var(--line);background:#fff;border-radius:16px;overflow:hidden;transition:.16s;box-shadow:0 5px 18px rgba(15,23,42,.05)}
.product-card:hover{box-shadow:0 16px 34px rgba(15,23,42,.12);transform:translateY(-3px)}
.product-card-img{position:relative;background:linear-gradient(180deg,#ffffff,#fbfcff)}
.product-card img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff;display:block}
.product-label{position:absolute;left:12px;top:12px;background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff;font-size:12px;font-weight:700;border-radius:999px;padding:5px 9px}
.product-card-body{padding:15px}
.product-card h3{font-size:16px;line-height:1.35;margin:8px 0 10px;min-height:42px}
.product-meta{color:#64748b;font-size:13px}
.product-card .price{font-size:20px;font-weight:900;color:#111827}
.tag{display:inline-block;color:#26740f;background:#eef9e8;border:1px solid #d7efcb;padding:2px 8px;border-radius:999px;font-size:12px;margin-top:8px;font-weight:700}
.product-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start}
.gallery-main{border:1px solid var(--line);background:#fff;padding:14px;min-height:520px;display:flex;align-items:center;justify-content:center;border-radius:18px;box-shadow:0 8px 24px rgba(15,23,42,.05)}
.gallery-main img{max-width:100%;max-height:520px;object-fit:contain}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:12px}
.thumbs img{border:1px solid var(--line);width:100%;aspect-ratio:1/1;object-fit:contain;cursor:pointer;background:#fff;padding:5px;border-radius:12px}
.thumbs img:hover{border-color:#2563eb;box-shadow:0 5px 12px rgba(37,99,235,.12)}
.product-info{border:1px solid var(--line);border-radius:18px;background:#fff;padding:24px;box-shadow:0 8px 24px rgba(15,23,42,.05)}
.product-info h1{font-size:31px;margin:0 0 12px;line-height:1.25}
.rating{color:#f59e0b;margin-bottom:16px}
.info-panel{background:#f8fbff;border:1px solid #e9f2ff;border-radius:14px;padding:14px 16px;margin:14px 0}
.info-line{margin:7px 0;color:#334155}
.info-line b{display:inline-block;min-width:160px;color:#334155}
.info-line span{color:#458d20;font-weight:700}
.description{margin:22px 0;color:#475569;font-size:16px}
.qty-row{display:flex;align-items:center;gap:14px;margin:22px 0}
.qty-box{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.qty-box button,.qty-box input{height:43px;border:0;background:#fff;text-align:center}
.qty-box button{width:38px;cursor:pointer;font-size:18px}
.qty-box input{width:70px;border-left:1px solid var(--line);border-right:1px solid var(--line)}
.actions{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap}
.btn{border:1px solid #111827;background:linear-gradient(135deg,#0f172a,#172554);color:#fff;padding:12px 22px;border-radius:10px;font-weight:800;cursor:pointer;display:inline-flex;gap:8px;align-items:center;box-shadow:0 6px 16px rgba(15,23,42,.12)}
.btn:hover{filter:brightness(1.06)}
.btn.icon{min-width:60px;height:58px;justify-content:center;padding:12px;background:#fff;color:#111827;border-color:#cbd5e1;box-shadow:none}
.btn.icon:hover{border-color:#2563eb;color:#2563eb;background:#f8fbff}
.btn.icon.active-heart{border-color:#fecaca;color:#ef4444;background:#fff5f5}
.btn.icon.active-compare{border-color:#bfdbfe;color:#2563eb;background:#eff6ff}
.options{border-top:1px solid var(--line);padding-top:24px;margin-top:20px}
.options h2{font-size:24px;margin:0 0 14px}
.option-field label{font-weight:800;display:block;margin-bottom:8px}
.option-field input{width:100%;border:1px solid #cfd5df;border-radius:10px;padding:12px;font-size:15px}
.tabs{margin-top:32px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 8px 24px rgba(15,23,42,.04)}
.tab-head{display:flex;background:#f8fafc;border-bottom:1px solid var(--line)}
.tab-head div{padding:13px 20px;font-weight:800;border-right:1px solid var(--line)}
.tab-body{padding:22px;color:#475569}
.notice-page{border:1px solid var(--line);background:#fff;padding:32px;border-radius:18px;box-shadow:0 8px 24px rgba(15,23,42,.05)}
.notice-page h1{margin-top:0}
.footer{background:linear-gradient(90deg,#0f172a,#172554);color:#dbe2f1;margin-top:48px}
.footer-inner{max-width:1280px;margin:0 auto;padding:34px 20px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px}
.footer h3{margin-top:0;color:#fff}
.cart-table{width:100%;border-collapse:collapse;margin-top:15px}
.cart-table th,.cart-table td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:middle}
.cart-table img{width:72px;height:72px;object-fit:contain;border:1px solid var(--line);background:#fff;border-radius:10px}
.cart-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.cart-empty{padding:22px;background:#f9fafb;border:1px solid var(--line);border-radius:12px}
.toast{position:fixed;right:18px;top:18px;background:#111827;color:#fff;padding:13px 18px;border-radius:10px;z-index:999;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.mini-badges{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.mini-badge{background:#fff;border:1px solid #e2e8f0;border-radius:999px;padding:8px 12px;font-size:13px;color:#334155}
@media(max-width:980px){.header-inner{grid-template-columns:1fr}.header-actions{justify-content:flex-start}.product-layout,.footer-inner{grid-template-columns:1fr}.product-grid,.category-grid{grid-template-columns:repeat(2,1fr)}.gallery-main{min-height:auto}}
@media(max-width:560px){.product-grid,.category-grid{grid-template-columns:1fr}.hero{padding:28px 24px}.hero h1{font-size:30px}.logo{font-size:24px}.product-info h1{font-size:25px}}