:root{
  --bg:#f6f6f8; --surface:#ffffff; --surface-2:#f0f1f5; --ink:#14161c; --ink-2:#5b6070;
  --line:#e3e5ec; --accent:#5b3df5; --accent-2:#8a5cff; --accent-ink:#ffffff;
  --gold:#f2a33c; --ok:#12855b; --danger:#d13c3c;
  --radius:16px; --shadow:0 1px 2px rgba(16,18,28,.06),0 8px 24px rgba(16,18,28,.06);
  --nav-h:62px; --max:1120px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg); color:var(--ink); -webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom));
  overscroll-behavior-y:none;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 14px}

/* ---------- header ---------- */
header.top{
  position:sticky;top:0;z-index:40;
  background:linear-gradient(135deg,#3a1fd6,#7a3ff5 55%,#a24bff);
  color:#fff;padding:10px 0 12px;box-shadow:0 2px 14px rgba(58,31,214,.25);
}
.top-row{display:flex;align-items:center;gap:10px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;letter-spacing:-.3px;font-size:18px}
.logo .dot{width:26px;height:26px;border-radius:9px;background:#fff;display:grid;place-items:center;color:#5b3df5;font-size:15px}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:4px}
.iconbtn{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;position:relative}
.iconbtn:active{background:rgba(255,255,255,.18)}
.badge{position:absolute;top:2px;right:2px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--gold);color:#26160a;font-size:11px;font-weight:800;display:grid;place-items:center}
.search{margin-top:10px;display:flex;align-items:center;gap:8px;background:#fff;border-radius:12px;padding:9px 12px;color:var(--ink)}
.search input{border:0;outline:0;flex:1;font-size:15px;background:transparent;min-width:0}
.deliver{margin-top:7px;font-size:12px;opacity:.85;display:flex;align-items:center;gap:6px}

/* ---------- chips ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;padding:12px 14px 4px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{white-space:nowrap;padding:8px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- hero ---------- */
.hero{margin:12px 14px 0;border-radius:20px;padding:20px;color:#fff;position:relative;overflow:hidden;
  background:radial-gradient(120% 120% at 100% 0%,#ff8f5e 0%,#e0399a 42%,#5b3df5 100%)}
.hero h1{margin:0 0 6px;font-size:23px;line-height:1.2;letter-spacing:-.5px}
.hero p{margin:0 0 14px;font-size:14px;opacity:.92;max-width:34ch}
.hero .btn{background:#fff;color:#5b3df5}
.hero .rings{position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;border:22px solid rgba(255,255,255,.14)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:12px;font-weight:700;font-size:15px;background:var(--ink);color:#fff}
.btn:active{transform:translateY(1px)}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 6px 18px rgba(91,61,245,.32)}
.btn.gold{background:linear-gradient(135deg,#ffcf5c,#f2a33c);color:#3a2400;box-shadow:0 6px 18px rgba(242,163,60,.35)}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}

/* ---------- section ---------- */
.sec{margin:18px 0 0}
.sec-head{display:flex;align-items:baseline;gap:8px;padding:0 14px 10px}
.sec-head h2{margin:0;font-size:17px;letter-spacing:-.3px}
.sec-head span{font-size:12px;color:var(--ink-2)}
.sec-head .more{margin-left:auto;font-size:13px;font-weight:700;color:var(--accent)}

/* ---------- grid ---------- */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:0 14px}
@media(min-width:640px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:900px){.grid{grid-template-columns:repeat(4,1fr)}}
.card{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;position:relative}
.card .ph{aspect-ratio:1/1;background:var(--surface-2);position:relative;overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:contain;padding:7%;background:linear-gradient(160deg,#f7f8fb,#e9ebf2)}
.card .ph .fallback{position:absolute;inset:0;display:grid;place-items:center}
.artag{position:absolute;left:8px;top:8px;display:flex;align-items:center;gap:5px;background:rgba(20,22,28,.82);color:#fff;font-size:11px;font-weight:700;padding:5px 9px;border-radius:999px;backdrop-filter:blur(6px)}
.artag.tryon{background:rgba(226,57,154,.9)}
.card .body{padding:10px 11px 12px;display:flex;flex-direction:column;gap:4px;flex:1}
.card .nm{font-size:13.5px;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .br{font-size:11px;color:var(--ink-2)}
.stars{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--ink-2)}
.stars b{color:var(--gold);letter-spacing:-1px;font-size:12px}
.price{display:flex;align-items:baseline;gap:6px;margin-top:auto;padding-top:4px}
.price .now{font-size:17px;font-weight:800;letter-spacing:-.4px}
.price .was{font-size:12px;color:var(--ink-2);text-decoration:line-through}
.pill{display:inline-block;font-size:10.5px;font-weight:800;color:var(--ok);background:#e7f5ef;padding:2px 6px;border-radius:6px;width:fit-content}

/* ---------- product detail ---------- */
.pd{padding-bottom:110px}
.viewer{background:linear-gradient(180deg,#eceef4,#dfe2ec);position:relative}
model-viewer{width:100%;height:min(60vh,420px);background:transparent;--poster-color:transparent}
.viewer .hint{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);font-size:11.5px;color:#4a4f60;background:rgba(255,255,255,.8);padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px)}
.pd-body{padding:14px}
.pd-body h1{font-size:20px;margin:2px 0 4px;letter-spacing:-.4px;line-height:1.25}
.pd-price{display:flex;align-items:baseline;gap:8px;margin:10px 0}
.pd-price .now{font-size:27px;font-weight:850;letter-spacing:-1px}
.swatches{display:flex;gap:9px;margin:12px 0}
.sw{width:34px;height:34px;border-radius:50%;border:2px solid transparent;box-shadow:inset 0 0 0 2px #fff}
.sw.on{border-color:var(--ink)}
.specs{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:14px;background:var(--surface)}
.specs div{display:flex;justify-content:space-between;gap:12px;padding:11px 13px;font-size:13.5px;border-bottom:1px solid var(--line)}
.specs div:last-child{border-bottom:0}
.specs div span:first-child{color:var(--ink-2)}
.specs div span:last-child{font-weight:600;text-align:right}
.buybar{position:fixed;left:0;right:0;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom));z-index:35;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:10px 14px;display:flex;gap:10px}
.buybar .btn{flex:1}
.backbar{display:flex;align-items:center;gap:10px;padding:10px 14px;font-weight:700}

/* ---------- try-on ---------- */
.ar-stage{position:relative;background:#0b0c10;border-radius:0;overflow:hidden;height:calc(100vh - var(--nav-h) - env(safe-area-inset-bottom));max-height:900px}
.ar-stage .mirror{position:absolute;inset:0;transform:scaleX(-1)}
.ar-stage video,.ar-stage canvas.overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ar-msg{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:#fff;padding:28px;z-index:5}
.ar-msg .inner{max-width:320px;display:flex;flex-direction:column;gap:12px;align-items:center}
.ar-msg h2{margin:0;font-size:20px}
.ar-msg p{margin:0;font-size:14px;color:#b9bdcc;line-height:1.5}
.ar-top{position:absolute;top:0;left:0;right:0;z-index:6;padding:14px;display:flex;gap:10px;align-items:center;
  background:linear-gradient(180deg,rgba(0,0,0,.55),transparent)}
.ar-top .t{color:#fff;font-weight:700;font-size:15px}
.ar-top .sub{color:#c9ccd8;font-size:11.5px}
.ar-circle{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);display:grid;place-items:center;color:#fff}
.ar-bottom{position:absolute;left:0;right:0;bottom:0;z-index:6;padding:12px 0 16px;background:linear-gradient(0deg,rgba(0,0,0,.7),transparent)}
.tray{display:flex;gap:10px;overflow-x:auto;padding:0 14px 12px;scrollbar-width:none}
.tray::-webkit-scrollbar{display:none}
.titem{flex:0 0 auto;width:74px;text-align:center;color:#fff}
.titem .ic{width:66px;height:66px;border-radius:18px;background:rgba(255,255,255,.12);border:2px solid transparent;display:grid;place-items:center;overflow:hidden}
.titem.on .ic{border-color:#fff;background:rgba(255,255,255,.24)}
.titem .lb{font-size:10.5px;margin-top:5px;opacity:.9;line-height:1.2;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.titem .pr{font-size:10.5px;font-weight:800;color:var(--gold)}
.ar-actions{display:flex;align-items:center;justify-content:center;gap:22px;padding:0 14px}
.shutter{width:68px;height:68px;border-radius:50%;background:#fff;border:5px solid rgba(255,255,255,.4);box-shadow:0 6px 20px rgba(0,0,0,.4)}
.ar-cta{background:#fff;color:#14161c;border-radius:999px;padding:11px 16px;font-weight:800;font-size:13.5px;display:flex;align-items:center;gap:7px;white-space:nowrap}
.fps{position:absolute;right:12px;top:66px;z-index:6;font-size:10.5px;color:#9aa0b5;background:rgba(0,0,0,.4);padding:3px 7px;border-radius:6px}

/* ---------- cart / list rows ---------- */
.row{display:flex;gap:12px;background:var(--surface);border-radius:14px;padding:11px;box-shadow:var(--shadow);margin:0 14px 10px}
.row .th{width:76px;height:76px;border-radius:10px;background:var(--surface-2);overflow:hidden;flex:0 0 auto;display:grid;place-items:center}
.row .th img{width:100%;height:100%;object-fit:contain;padding:4px}
.row .info{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.row .info .nm{font-size:14px;font-weight:600;line-height:1.3}
.qty{display:flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;width:fit-content;margin-top:4px}
.qty button{width:32px;height:30px;display:grid;place-items:center;font-size:16px;color:var(--ink-2)}
.qty span{width:30px;text-align:center;font-weight:700;font-size:13px}
.summary{margin:14px;background:var(--surface);border-radius:16px;padding:14px;box-shadow:var(--shadow)}
.summary .l{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;color:var(--ink-2)}
.summary .l.total{color:var(--ink);font-weight:800;font-size:18px;border-top:1px solid var(--line);margin-top:8px;padding-top:12px}
.empty{text-align:center;padding:60px 24px;color:var(--ink-2)}
.empty h3{color:var(--ink);margin:12px 0 6px}

/* ---------- checkout ---------- */
.field{margin:0 14px 12px}
.field label{display:block;font-size:12px;font-weight:700;color:var(--ink-2);margin-bottom:5px}
.field input{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:12px;font-size:15px;background:var(--surface);outline:0}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,61,245,.12)}
.two{display:flex;gap:10px}
.two .field{flex:1;margin-left:0;margin-right:0}
.demo-note{margin:0 14px 14px;font-size:12px;color:var(--ink-2);background:#fff8e6;border:1px solid #f3e0b0;padding:10px 12px;border-radius:12px}

/* ---------- nav ---------- */
nav.bottom{position:fixed;left:0;right:0;bottom:0;z-index:50;height:calc(var(--nav-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-top:1px solid var(--line);display:flex}
nav.bottom a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10.5px;font-weight:600;color:var(--ink-2);position:relative}
nav.bottom a.on{color:var(--accent)}
nav.bottom a .nb{position:absolute;top:6px;right:calc(50% - 22px);min-width:16px;height:16px;padding:0 4px;border-radius:8px;background:var(--danger);color:#fff;font-size:10px;font-weight:800;display:grid;place-items:center}

/* ---------- misc ---------- */
.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + 22px);transform:translate(-50%,20px);z-index:80;background:#14161c;color:#fff;padding:12px 18px;border-radius:14px;font-size:14px;font-weight:600;opacity:0;transition:.25s;box-shadow:0 10px 30px rgba(0,0,0,.3);display:flex;gap:9px;align-items:center;max-width:90vw}
.toast.on{opacity:1;transform:translate(-50%,0)}
.spinner{width:22px;height:22px;border:3px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.confirm{padding:60px 24px;text-align:center}
.confirm .tick{width:78px;height:78px;border-radius:50%;background:#e7f5ef;color:var(--ok);display:grid;place-items:center;margin:0 auto 18px}
.confirm h2{margin:0 0 8px;letter-spacing:-.5px}
.confirm p{color:var(--ink-2);margin:0 auto 22px;max-width:36ch}
.snapshot{position:fixed;inset:0;z-index:90;background:rgba(8,9,14,.94);display:grid;place-items:center;padding:20px}
.snapshot img{max-width:100%;max-height:70vh;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.snapshot .acts{display:flex;gap:10px;margin-top:16px;justify-content:center;flex-wrap:wrap}
.foot{padding:26px 16px 30px;text-align:center;color:var(--ink-2);font-size:12px;line-height:1.7}