:root{
  --bg:#f5f7ff;--bg2:#ffffff;--panel:#ffffff;--line:#e4e9f7;--line2:#cdd6ef;
  --fg:#0f1733;--mute:#5a6788;--blue:#2563eb;--violet:#7c3aed;--pink:#ec4899;--cyan:#06b6d4;--orange:#f97316;--green:#059669;--amber:#d97706;
  --grad:linear-gradient(110deg,#06b6d4 0%,#2563eb 30%,#7c3aed 65%,#ec4899 100%);
  --mono:Consolas,"SFMono-Regular",Menlo,monospace;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif;line-height:1.5;font-size:15px}
a{color:inherit;text-decoration:none}
.w{max-width:1280px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
button{font:inherit;cursor:pointer}
.gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* top bar */
.top{background:var(--grad);font-size:13px;color:#fff}
.top .w{display:flex;justify-content:space-between;align-items:center;height:36px;gap:12px}
.top b{font-weight:700}
.lang{display:flex;border:1px solid rgba(255,255,255,.6);border-radius:4px;overflow:hidden}
.lang a{display:block;background:none;border:0;color:#fff;padding:3px 10px;font-size:12px}
.lang a.on{background:#fff;color:var(--violet);font-weight:700}

/* header */
header{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;box-shadow:0 2px 16px rgba(37,99,235,.06)}
header .w{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;letter-spacing:.06em;font-size:22px;white-space:nowrap;color:#8466c6}
.logo img{display:block;width:40px;height:auto}
.search{flex:1;display:flex;border:2px solid transparent;border-radius:8px;overflow:hidden;background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box}
.search input{flex:1;background:none;border:0;color:var(--fg);padding:11px 14px;font:inherit;outline:none;min-width:0}
.search input::placeholder{color:#97a3c0}
.search button{background:var(--grad);border:0;color:#fff;font-weight:700;padding:0 24px}
.hicons{display:flex;gap:22px;font-size:13px;color:var(--mute);white-space:nowrap}
.hicons a{display:flex;align-items:center;gap:6px}.hicons a:hover{color:var(--blue)}
.cart{position:relative}
.cart em{position:absolute;top:-8px;left:12px;background:var(--pink);color:#fff;font-style:normal;font-size:11px;font-weight:700;border-radius:9px;padding:0 5px}
nav{background:#fff;border-bottom:1px solid var(--line)}
nav .w{display:flex;gap:30px;height:46px;align-items:center;font-size:14px;overflow-x:auto;white-space:nowrap}
nav a{color:var(--mute);font-weight:500}nav a:hover{color:var(--blue)}nav a.on{color:var(--blue);font-weight:700}

/* hero */
.hero{position:relative;overflow:hidden;color:#fff;background:
  radial-gradient(circle at 85% 20%,rgba(236,72,153,.85),transparent 40%),
  radial-gradient(circle at 10% 90%,rgba(6,182,212,.9),transparent 45%),
  radial-gradient(circle at 60% 110%,rgba(249,115,22,.55),transparent 40%),
  linear-gradient(120deg,#2563eb,#7c3aed)}
.hero:before{content:"";position:absolute;inset:0;background:
  linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px) 0 0/40px 40px;
  -webkit-mask:radial-gradient(ellipse at 70% 40%,#000 25%,transparent 80%);mask:radial-gradient(ellipse at 70% 40%,#000 25%,transparent 80%)}
.hero .w{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding-top:64px;padding-bottom:64px}
.tag{display:inline-flex;gap:8px;align-items:center;font-family:var(--mono);font-size:12px;color:#fff;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.15);padding:4px 12px;border-radius:20px;letter-spacing:.06em}
.tag:before{content:"";width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 8px #4ade80}
h1{font-size:50px;line-height:1.1;margin:18px 0 16px;letter-spacing:-.01em}
h1 span{color:#fde68a}
.hero p.lead{color:rgba(255,255,255,.9);font-size:17px;max-width:540px;margin:0 0 28px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 24px;border-radius:30px;font-weight:700;border:2px solid #fff;transition:.2s}
.btn.p{background:#fff;color:var(--violet);box-shadow:0 8px 24px rgba(15,23,51,.2)}.btn.g{color:#fff}
.btn:hover{transform:translateY(-2px)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:42px;border-top:1px solid rgba(255,255,255,.35)}
.stats div{padding:16px 0 0}.stats b{display:block;font-family:var(--mono);font-size:26px}
.stats span{font-size:12px;color:rgba(255,255,255,.85)}
.chip{width:100%;max-width:520px;justify-self:center;filter:drop-shadow(0 20px 40px rgba(30,27,75,.35))}

/* sections */
section{padding:72px 0}
section.alt{background:#fff}
.sh{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:28px;gap:20px}
.sh small{font-family:var(--mono);font-size:12px;letter-spacing:.12em;font-weight:700}
.sh h2{margin:6px 0 0;font-size:30px}
.sh a{color:var(--blue);font-size:14px;white-space:nowrap;font-weight:600}

.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.2s;position:relative;overflow:hidden;box-shadow:0 4px 18px rgba(37,99,235,.06)}
.cat:after{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--c)}
.cat:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(124,58,237,.16)}
.cat .ib{width:96px;height:96px;border-radius:18px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;background:var(--t)}
.cat svg{height:70px;width:96px;display:block}
.cat h3{margin:0 0 4px;font-size:18px}.cat p{margin:0;color:var(--mute);font-size:13px}
.cat .n{position:absolute;top:20px;right:18px;font-family:var(--mono);font-size:12px;color:var(--c);font-weight:700}

/* parametric table */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.filters button{background:#fff;border:1px solid var(--line2);color:var(--mute);border-radius:20px;padding:6px 16px;font-size:13px}
.filters button.on{border-color:transparent;color:#fff;background:var(--grad);font-weight:600}
.tbl{border:1px solid var(--line);border-radius:14px;overflow:auto;background:#fff;box-shadow:0 4px 18px rgba(37,99,235,.06)}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:900px}
th{text-align:left;font-weight:700;color:var(--mute);font-size:12px;letter-spacing:.05em;text-transform:uppercase;background:#f1f4ff;padding:12px 14px;border-bottom:1px solid var(--line)}
td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:#f7f5ff}
.pn{font-family:var(--mono);color:var(--violet);font-weight:700}
.pn small{display:block;color:var(--mute);font-family:inherit;font-weight:400;font-size:12px}
.spec{font-family:var(--mono);font-size:13px;color:#334066}
.stock{font-family:var(--mono);color:var(--green);font-size:13px;font-weight:600}.stock.low{color:var(--amber)}
.price{font-family:var(--mono);font-weight:700}.price small{display:block;color:var(--mute);font-size:11px;font-weight:400}
.ds{color:var(--pink);font-size:13px;font-weight:700;border:1px solid #fbcfe8;background:#fdf2f8;border-radius:4px;padding:2px 8px}
.add{display:flex;gap:6px;align-items:center}
.add input{width:62px;background:#fff;border:1px solid var(--line2);color:var(--fg);border-radius:6px;padding:6px;font-family:var(--mono);text-align:center}
.add button{background:var(--grad);border:0;color:#fff;font-weight:700;border-radius:6px;padding:7px 14px;font-size:13px}

/* features */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.feat .ic{display:inline-block;font-family:var(--mono);color:#fff;font-size:12px;font-weight:700;margin-bottom:14px;padding:3px 10px;border-radius:12px;background:var(--c)}
.feat h3{margin:0 0 6px;font-size:17px}.feat p{margin:0;color:var(--mute);font-size:14px}

/* apps */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app{border-radius:16px;padding:28px;color:#fff;background:var(--b);box-shadow:0 12px 30px rgba(37,99,235,.15)}
.app h3{margin:0 0 6px;font-size:20px}.app p{margin:0 0 16px;color:rgba(255,255,255,.9);font-size:14px}
.app ul{margin:0;padding:0;list-style:none;font-family:var(--mono);font-size:12px;display:flex;flex-wrap:wrap;gap:6px}
.app li{background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.45);border-radius:12px;padding:2px 10px}

/* rfq */
.rfq{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;border-radius:20px;padding:44px;color:#fff;background:
  radial-gradient(circle at 0% 0%,rgba(6,182,212,.9),transparent 45%),radial-gradient(circle at 100% 100%,rgba(236,72,153,.9),transparent 45%),linear-gradient(120deg,#2563eb,#7c3aed);box-shadow:0 20px 50px rgba(124,58,237,.25)}
.rfq h2{margin:8px 0 10px;font-size:28px}.rfq p{color:rgba(255,255,255,.9);margin:0}
.rfq form{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rfq input,.rfq textarea{background:#fff;border:0;color:var(--fg);border-radius:8px;padding:12px;font:inherit}
.rfq textarea{grid-column:1/-1;min-height:84px;resize:vertical}
.rfq .btn{grid-column:1/-1;text-align:center;cursor:pointer;background:#0f1733;color:#fff;border-color:#0f1733}

.certs{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.certs span{font-family:var(--mono);font-size:12px;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.12);padding:5px 12px;border-radius:14px}

footer{padding:56px 0 30px;color:var(--mute);font-size:14px;background:#fff;position:relative}
footer:before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}

footer h4{color:var(--fg);margin:0 0 12px;font-size:14px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer .bot{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;font-size:12px;gap:12px;flex-wrap:wrap}
.pay{display:flex;gap:8px}.pay span{border:1px solid var(--line2);border-radius:4px;padding:2px 8px;font-size:11px;font-family:var(--mono);color:var(--fg)}

.toast{position:fixed;right:20px;bottom:20px;background:var(--grad);color:#fff;font-weight:700;padding:12px 18px;border-radius:8px;opacity:0;transform:translateY(10px);transition:.25s;pointer-events:none;box-shadow:0 10px 30px rgba(124,58,237,.3)}
.toast.on{opacity:1;transform:none}
.paybar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;padding:14px 18px;border-radius:12px;background:#f5f3ff;border:1px solid #e9e3ff;font-size:13px}
.paybar b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-right:6px}
.paybar span{background:#fff;border:1px solid var(--line2);border-radius:6px;padding:3px 10px;font-weight:600;color:var(--fg)}
.paybar em{font-style:normal;color:var(--mute);margin-left:auto}
.pn a:hover{text-decoration:underline}
.thumb{width:44px;height:44px;border-radius:8px;border:1px solid var(--line);object-fit:contain;background:#fff;vertical-align:middle;margin-right:10px;float:left}

/* inner pages */
.crumb{font-size:13px;color:var(--mute);padding:18px 0 0}.crumb a:hover{color:var(--blue)}
.pagehead{padding:18px 0 26px}.pagehead h1{font-size:32px;margin:6px 0 4px;color:var(--fg)}.pagehead p{color:var(--mute);margin:0}
.layout>*,.pd>*,.cartwrap>*{min-width:0}
.layout{display:grid;grid-template-columns:240px 1fr;gap:24px;align-items:start;padding-bottom:70px}
.side{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;position:sticky;top:130px}
.side h4{margin:4px 6px 10px;font-size:13px;color:var(--mute);letter-spacing:.05em;text-transform:uppercase}
.side a{display:flex;justify-content:space-between;padding:8px 10px;border-radius:8px;font-size:14px}
.side a:hover{background:#f5f3ff}.side a.on{background:var(--grad);color:#fff;font-weight:700}
.side a small{opacity:.7}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar .cnt{color:var(--mute);font-size:14px;margin-right:auto}
.toolbar select,.toolbar label{font:inherit;font-size:13px;border:1px solid var(--line2);border-radius:8px;padding:6px 10px;background:#fff;color:var(--fg)}
.empty{background:#fff;border:1px dashed var(--line2);border-radius:14px;padding:50px 20px;text-align:center;color:var(--mute)}

.pd{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:10px 0 50px}
.gallery .main{background:#fff;border:1px solid var(--line);border-radius:16px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.gallery .main img{max-width:88%;max-height:88%;object-fit:contain}
.gallery .thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.gallery .thumbs img{width:70px;height:70px;border-radius:10px;border:2px solid var(--line);object-fit:contain;background:#fff;cursor:pointer}
.gallery .thumbs img.on{border-color:var(--violet)}
.pinfo .sku{font-family:var(--mono);font-weight:700;color:var(--violet);font-size:15px}
.pinfo h1{font-size:28px;margin:6px 0 10px;line-height:1.25}
.pinfo .sum{font-family:var(--mono);color:#334066;font-size:14px;margin-bottom:18px}
.meta{display:flex;gap:18px;flex-wrap:wrap;font-size:14px;margin-bottom:18px}
.meta b{font-family:var(--mono)}
.tiers{width:100%;min-width:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:18px;background:#fff}
.tiers th,.tiers td{padding:9px 14px}
.tiers td{font-family:var(--mono)}
.tiers tr.on td{background:#f5f3ff;color:var(--violet);font-weight:700}
.buy{display:flex;gap:10px;align-items:stretch;flex-wrap:wrap;margin-bottom:14px}
.buy input{width:110px;border:1px solid var(--line2);border-radius:10px;padding:10px;font:inherit;font-family:var(--mono);text-align:center}
.buy .live{display:flex;flex-direction:column;justify-content:center;font-size:13px;color:var(--mute)}
.buy .live b{font-family:var(--mono);font-size:20px;color:var(--fg)}
.btn.solid{background:var(--grad);color:#fff;border-color:transparent}
.btn.line{color:var(--violet);border-color:var(--violet);background:#fff}
.dsl{display:inline-flex;gap:8px;align-items:center;color:var(--pink);font-weight:700;font-size:14px}
.box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:22px}
.box h2{font-size:20px;margin:0 0 14px}
.spect{width:100%;min-width:0}.spect th{width:38%;text-transform:none;letter-spacing:0;font-size:13px;background:#f8f9ff}
.spect td{font-family:var(--mono);font-size:14px}
.prose{color:#334066;white-space:pre-line}

.cartt{min-width:640px}.cartt input{width:80px;border:1px solid var(--line2);border-radius:6px;padding:6px;text-align:center;font-family:var(--mono)}
.cartt .rm{background:none;border:0;color:var(--pink);font-size:13px}
.sumbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.sumbox div{display:flex;justify-content:space-between;padding:6px 0;font-size:15px}
.sumbox div.addr{display:block;padding:0;font-size:14px;color:#334066;line-height:1.7}
.sumbox .tot{border-top:1px solid var(--line);margin-top:8px;padding-top:12px;font-size:20px;font-weight:800}
.sumbox .hint{display:block;background:#fff7ed;color:#c2410c;border-radius:8px;padding:8px 12px;font-size:13px;margin:10px 0}
.cartwrap{display:grid;grid-template-columns:1fr 340px;gap:24px;align-items:start;padding-bottom:70px}
.note{font-size:13px;color:var(--mute);margin-top:10px}

.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:20px}
.panel h2{font-size:19px;margin:0 0 14px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}.fgrid .full{grid-column:1/-1}
.fl label{display:block;font-size:13px;font-weight:600;color:#334066;margin-bottom:5px}
.fl input,.fl select,.fl textarea{width:100%;font:inherit;border:1px solid var(--line2);border-radius:10px;padding:10px 12px;background:#fff;color:var(--fg)}
.fl input:focus,.fl textarea:focus,.fl select:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px #ede9fe}
.fl.err input,.fl.err select{border-color:#ef4444;background:#fef2f2}
.alert{border-radius:10px;padding:12px 16px;margin-bottom:16px;font-size:14px}
.alert.err{background:#fef2f2;color:#b91c1c}.alert.ok{background:#ecfdf5;color:#047857}.alert.info{background:#eff6ff;color:#1d4ed8}
.authbox{max-width:440px;margin:30px auto 80px}
.authbox .btn{width:100%;text-align:center;cursor:pointer}
.authbox p.sub{color:var(--mute);font-size:14px}
.paym{display:block;border:2px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px;cursor:pointer;background:#fff}
.paym:has(input:checked){border-color:var(--violet);background:#faf8ff}
.paym.off{opacity:.55;cursor:not-allowed}
.paym b{font-size:15px}.paym small{display:block;color:var(--mute);margin:4px 0 0 24px}
.paym.err{border-color:#ef4444}
.chk{display:flex;gap:8px;align-items:flex-start;font-size:14px;margin:10px 0}
.chk.err{color:#b91c1c}.chk a{color:var(--blue);text-decoration:underline}
.mini{width:100%;min-width:0;font-size:14px}.mini td{padding:8px 0;border-bottom:1px solid var(--line)}
.mini td:last-child{text-align:right;font-family:var(--mono)}
.stbadge{display:inline-block;padding:3px 12px;border-radius:14px;font-size:13px;font-weight:700}
.st-pending{background:#fff7ed;color:#c2410c}.st-paid{background:#ecfdf5;color:#047857}.st-shipped{background:#eff6ff;color:#1d4ed8}
.st-completed{background:#f1f5f9;color:#334155}.st-cancelled{background:#f1f5f9;color:#94a3b8}
.kv{display:grid;grid-template-columns:140px 1fr;gap:6px 14px;font-size:14px}.kv b{color:var(--mute);font-weight:600}
.kv span{font-family:var(--mono);word-break:break-all}
.prose2 h2{font-size:20px;margin:26px 0 8px}.prose2 p{color:#334066;margin:0 0 12px}
.acct-tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
@media (max-width:640px){.fgrid{grid-template-columns:1fr}.kv{grid-template-columns:1fr}.panel{padding:18px}}
.draft{position:fixed;left:12px;bottom:12px;background:#fde047;color:#111;font-size:12px;font-weight:700;padding:4px 10px;border-radius:3px;z-index:9}
@media (max-width:900px){
  .layout,.pd,.cartwrap{grid-template-columns:1fr}
  .side{position:static;display:flex;flex-wrap:wrap;gap:6px;padding:10px}.side h4{display:none}
  .side a{padding:6px 12px;border:1px solid var(--line);border-radius:20px}
  .side a small{margin-left:6px}
}

@media (max-width:1000px){
  .hero .w{grid-template-columns:1fr}.chip{max-width:380px}
  .cats,.feats{grid-template-columns:repeat(2,1fr)}.apps{grid-template-columns:1fr}
  .rfq{grid-template-columns:1fr;padding:26px}
  footer .cols{grid-template-columns:1fr 1fr}
  .hicons .t{display:none}
}
@media (max-width:640px){
  .w{padding:0 16px}
  header .w{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;gap:12px}
  .search{order:3;flex-basis:100%}
  .hicons{margin-left:auto}
  h1{font-size:34px}.stats{grid-template-columns:repeat(2,1fr)}
  .cats,.feats{grid-template-columns:1fr}
  .rfq form{grid-template-columns:1fr}
  .top .ship{display:none}
  section{padding:52px 0}.sh h2{font-size:24px}
}