:root{
  --bg:#07070f;--panel:#12121c;--panel2:#181824;--ink:#f2f4ff;--mute:#8b8da8;
  --cyan:#00f5ff;--magenta:#ff2bd6;--line:rgba(0,245,255,.18);
  --glow-c:0 0 24px rgba(0,245,255,.35);--glow-m:0 0 24px rgba(255,43,214,.3);
  --grad:linear-gradient(120deg,var(--cyan),var(--magenta));
  --font-display:"Syne","Noto Sans TC",sans-serif;
  --font-mono:"IBM Plex Mono","Noto Sans TC",monospace;
  --font-body:"Noto Sans TC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;height:100%}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:var(--font-body);line-height:1.65;font-size:15px;
  min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;
  background-image:
    linear-gradient(rgba(0,245,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,245,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
a{color:var(--cyan);text-decoration:none;font-weight:600}
a:hover{color:#7dffff;text-shadow:0 0 12px rgba(0,245,255,.5)}
img{max-width:100%;display:block}
.skip{position:absolute;left:-999px}
.speed-banner{
  flex-shrink:0;background:var(--grad);color:#07070f;text-align:center;
  padding:9px 16px;font-size:12px;font-weight:800;letter-spacing:.14em;
  font-family:var(--font-mono);text-transform:uppercase;
  animation:bannerPulse 3.2s ease-in-out infinite;
}
@keyframes bannerPulse{
  0%,100%{filter:brightness(1)}
  50%{filter:brightness(1.12)}
}
.nav{
  flex-shrink:0;display:flex;align-items:center;gap:18px;padding:12px 22px;
  background:rgba(7,7,15,.92);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;backdrop-filter:blur(12px);
}
.nav .logo img{height:56px;width:56px;object-fit:contain;filter:drop-shadow(0 0 10px rgba(0,245,255,.45))}
.nav-links{display:flex;flex-wrap:wrap;gap:4px 16px;flex:1;font-size:13px;font-weight:700;font-family:var(--font-mono)}
.nav-links a{color:var(--mute);letter-spacing:.04em}
.nav-links a:hover{color:var(--cyan)}
.cart-btn{
  padding:9px 16px;background:transparent;color:var(--cyan);
  border:1.5px solid var(--cyan);font:inherit;font-family:var(--font-mono);
  font-weight:700;font-size:12px;cursor:pointer;letter-spacing:.06em;
  box-shadow:var(--glow-c);transition:background .2s,color .2s,box-shadow .2s;
}
.cart-btn:hover{background:rgba(0,245,255,.12);box-shadow:0 0 28px rgba(0,245,255,.55)}
.cart-count{
  background:var(--magenta);color:#fff;border-radius:99px;padding:0 6px;
  margin-left:6px;font-size:10px;display:none;font-weight:800;
  box-shadow:var(--glow-m);
}
main{flex:1 0 auto;width:100%}
.hero{
  padding:clamp(40px,8vw,72px) 24px 36px;text-align:center;position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:-20% 20% auto;height:220px;
  background:radial-gradient(ellipse,rgba(0,245,255,.18),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:auto 10% -30%;height:200px;
  background:radial-gradient(ellipse,rgba(255,43,214,.14),transparent 70%);
  pointer-events:none;
}
.hero-kicker{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:var(--cyan);
  margin:0 0 14px;text-transform:uppercase;
}
.hero h1{
  font-family:var(--font-display);font-weight:800;font-size:clamp(36px,8vw,72px);
  line-height:1.05;margin:0 0 16px;letter-spacing:-.02em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;display:inline-block;
  animation:glitchShift 4.5s steps(2,end) infinite;
}
@keyframes glitchShift{
  0%,90%,100%{transform:translate(0);filter:none}
  92%{transform:translate(-2px,1px);filter:drop-shadow(2px 0 var(--magenta))}
  94%{transform:translate(2px,-1px);filter:drop-shadow(-2px 0 var(--cyan))}
  96%{transform:translate(0)}
}
.hero p{margin:0 auto;max-width:34em;color:var(--mute);font-size:15px}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:22px}
.hero-tags span{
  font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.08em;
  padding:7px 12px;border:1px solid var(--line);color:var(--cyan);
  background:rgba(0,245,255,.06);box-shadow:inset 0 0 12px rgba(0,245,255,.08);
}
.rail-sec{padding:8px 0 36px}
.rail-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:0 22px 12px;max-width:1200px;margin:0 auto;
}
.rail-head h2{
  font-family:var(--font-display);font-weight:800;font-size:20px;margin:0;
  letter-spacing:.02em;
}
.rail-head a{font-family:var(--font-mono);font-size:12px}
.rail{
  display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 22px 18px;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:var(--cyan) var(--panel);
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--cyan);border-radius:99px}
.tile{
  flex:0 0 min(220px,72vw);scroll-snap-align:start;
  background:var(--panel);border:1px solid var(--line);padding:12px;
  transition:border-color .2s,box-shadow .25s,transform .25s;
  position:relative;
}
.tile::before{
  content:"";position:absolute;inset:-1px;pointer-events:none;
  border:1px solid transparent;opacity:0;transition:opacity .25s;
  box-shadow:0 0 0 1px var(--cyan),0 0 22px rgba(0,245,255,.35),0 0 36px rgba(255,43,214,.2);
}
.tile:hover{transform:translateY(-3px);border-color:var(--cyan)}
.tile:hover::before{opacity:1}
.tile .thumb{
  display:block;width:100%;aspect-ratio:1/1;overflow:hidden;background:var(--panel2);
  margin-bottom:10px;border-radius:18px;position:relative;
}
.tile .thumb img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;
  border-radius:18px;
}
.tile .brand{
  font-family:var(--font-mono);font-size:9px;color:var(--magenta);
  letter-spacing:.1em;text-transform:uppercase;
}
.tile .name{
  display:block;margin:4px 0 8px;font-size:13px;font-weight:700;color:var(--ink);
  line-height:1.35;min-height:2.6em;
}
.tile .price{font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--cyan)}
.tile .add{
  margin-top:10px;width:100%;padding:8px;background:transparent;color:var(--magenta);
  border:1px solid var(--magenta);font:inherit;font-family:var(--font-mono);
  font-size:11px;font-weight:700;cursor:pointer;letter-spacing:.06em;
}
.tile .add:hover{background:rgba(255,43,214,.15);box-shadow:var(--glow-m)}
.grid-tiles{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
  gap:14px;padding:0 22px 32px;max-width:1200px;margin:0 auto;
}
.grid-tiles .tile{flex:none}
.brand-logo-thumb{
  display:block;width:100%;aspect-ratio:1/1;overflow:hidden;margin-bottom:10px;
  border-radius:18px;background:#000;border:1px solid var(--line);position:relative;
}
.brand-logo-thumb img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;
  padding:12%;
}
.brand-logo-fallback{
  display:grid;place-items:center;width:100%;height:100%;
  font-family:var(--font-mono);font-size:22px;font-weight:800;color:var(--cyan);
}
.page-brand-logo{
  width:96px;height:96px;border-radius:18px;background:#000;border:1px solid var(--line);
  overflow:hidden;margin:0 0 16px;position:relative;
}
.page-brand-logo img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:14%;}
.page-title{padding:36px 22px 8px;max-width:1200px;margin:0 auto}
.page-title h1{
  font-family:var(--font-display);font-weight:800;font-size:clamp(26px,4vw,40px);
  margin:0 0 8px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-title p{color:var(--mute);margin:0;max-width:36em}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:14px 22px;max-width:1200px;margin:0 auto}
.chips button{
  padding:8px 14px;border:1px solid var(--line);background:var(--panel);
  font:inherit;font-family:var(--font-mono);font-size:11px;font-weight:700;
  color:var(--mute);cursor:pointer;letter-spacing:.04em;
}
.chips button.on{border-color:var(--cyan);color:var(--cyan);box-shadow:var(--glow-c)}
.wrap{width:min(720px,calc(100% - 40px));margin:0 auto;padding:32px 0 48px}
.legal{
  background:var(--panel);border:1px solid var(--line);padding:28px;
  box-shadow:inset 0 0 40px rgba(0,245,255,.04);
}
.legal h1{
  font-family:var(--font-display);font-weight:800;font-size:24px;margin:0 0 10px;
  color:var(--cyan);
}
.legal h2{
  font-family:var(--font-mono);font-size:13px;margin:22px 0 8px;color:var(--magenta);
  letter-spacing:.06em;
}
.legal p{color:var(--mute);margin:0 0 12px;font-size:14px}
.faq details{
  background:var(--panel);border:1px solid var(--line);margin-bottom:8px;
}
.faq summary{
  padding:14px 18px;cursor:pointer;font-weight:800;list-style:none;
  font-family:var(--font-mono);font-size:13px;color:var(--cyan);
}
.faq summary::-webkit-details-marker{display:none}
.faq p{padding:14px 18px;margin:0;color:var(--mute);border-top:1px solid var(--line);font-size:14px}
.pdp-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:28px;padding:28px 22px;
  max-width:1100px;margin:0 auto;align-items:start;
}
.pdp-img{
  border-radius:18px;
  background:var(--panel);border:1px solid var(--line);padding:18px;
  box-shadow:0 0 40px rgba(0,245,255,.08);
}
.pdp-img .inner{
  aspect-ratio:1/1;overflow:hidden;background:var(--panel2);border-radius:18px;
  width:100%;position:relative;
}
.pdp-img img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;
  border-radius:18px;
}
.pdp-card{
  background:var(--panel);border:1px solid var(--line);padding:24px;
  box-shadow:0 0 40px rgba(255,43,214,.06);
}
.pdp-card h1{
  font-family:var(--font-display);font-weight:800;font-size:clamp(18px,2.5vw,26px);
  line-height:1.3;margin:0 0 12px;
}
.price-lg{
  font-family:var(--font-mono);font-size:28px;font-weight:700;color:var(--cyan);
  margin:0 0 14px;text-shadow:0 0 18px rgba(0,245,255,.4);
}
.pdp-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.pdp-tags span{
  font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:.06em;
  padding:5px 10px;border:1px solid var(--line);color:var(--magenta);
  background:rgba(255,43,214,.08);
}
.rich p{margin:0 0 10px;color:var(--mute);font-size:14px}
.spec{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}
.spec th,.spec td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line)}
.spec th{width:36%;font-weight:700;color:var(--mute);font-size:12px;font-family:var(--font-mono)}
.buyrow{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.buyrow button{
  padding:12px 22px;font:inherit;font-family:var(--font-mono);font-weight:700;
  font-size:12px;cursor:pointer;letter-spacing:.06em;border:0;
}
.buyrow .solid{background:var(--grad);color:#07070f}
.buyrow .buy{background:transparent;color:var(--cyan);border:1.5px solid var(--cyan)}
.buyrow .buy:hover{box-shadow:var(--glow-c)}
.variant-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.variant{
  border:1px solid var(--line);background:var(--panel2);padding:4px;cursor:pointer;width:52px;
}
.variant:hover{border-color:var(--cyan);box-shadow:var(--glow-c)}
.variant{border-radius:12px;overflow:hidden}
.variant img{width:52px;height:52px;object-fit:cover;display:block;border-radius:8px}
.variant span{display:block;font-size:8px;color:var(--mute);text-align:center;margin-top:2px}
.related{padding:0 22px 40px;max-width:1200px;margin:0 auto}
.related h2{
  font-family:var(--font-display);font-weight:800;font-size:18px;margin:0 0 14px;color:var(--cyan);
}
.foot{
  flex-shrink:0;margin-top:auto;padding:40px 28px;background:#05050c;
  border-top:1px solid var(--line);color:rgba(242,244,255,.75);
  font-size:13px;display:flex;justify-content:center;
}
.foot-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:28px 72px;
  width:min(960px,calc(100% - 48px));margin:0 auto;align-items:start;
}
.foot h2{
  font-family:var(--font-display);font-weight:800;color:var(--cyan);
  font-size:15px;margin:0 0 10px;
}
.foot a{
  color:rgba(242,244,255,.55);display:block;margin-bottom:6px;
  font-weight:600;font-size:12px;font-family:var(--font-mono);
}
.foot a:hover{color:var(--magenta)}
.foot-note{font-size:11px;margin-top:12px;opacity:.55}
.mask{position:fixed;inset:0;background:rgba(7,7,15,.72);display:none;z-index:80}
.mask.show,.flycart.show{display:block}
.flycart{
  position:fixed;right:0;top:0;height:100%;width:min(380px,100%);
  background:var(--panel);z-index:90;display:none;overflow:auto;
  border-left:1px solid var(--cyan);box-shadow:-12px 0 40px rgba(0,245,255,.12);
}
.flycart header{
  display:flex;justify-content:space-between;align-items:center;padding:16px 20px;
  background:linear-gradient(90deg,rgba(0,245,255,.2),rgba(255,43,214,.25));
  color:var(--ink);font-weight:800;font-family:var(--font-mono);letter-spacing:.08em;
}
.flycart .close{background:none;border:0;font-size:28px;cursor:pointer;color:var(--cyan)}
.cart-box{padding:18px 20px}
.cart-item{display:grid;grid-template-columns:60px 1fr;gap:12px;margin-bottom:14px}
.cart-item img{width:60px;height:60px;object-fit:cover;border:1px solid var(--line);border-radius:12px}
.cart-item .rm{color:var(--magenta);cursor:pointer;font-size:12px;font-weight:800}
.total{font-size:22px;font-weight:800;color:var(--cyan);margin:12px 0;font-family:var(--font-mono)}
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--magenta);color:#fff;padding:12px 22px;
  opacity:0;transition:.2s;z-index:100;font-weight:800;font-size:13px;
  font-family:var(--font-mono);box-shadow:var(--glow-m);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:900px){
  .pdp-wrap{grid-template-columns:1fr;padding:20px 16px}
  .foot-inner{grid-template-columns:1fr;gap:24px}
  .nav{padding:10px 14px;gap:10px}
  .nav-links{font-size:11px;gap:4px 10px}
}