*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --ink:#f8fafc;
  --muted:#c6d0e0;
  --dark:#050914;
  --panel:#0b1220;
  --panel2:#101a2d;
  --line:rgba(255,255,255,.13);
  --blue:#4f83ff;
  --gold:#d6b36a;
  --white:#ffffff;
  --shadow:0 30px 100px rgba(0,0,0,.35);
  --container:1240px;
}
body{
  margin:0;
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  background:
    radial-gradient(circle at 12% 6%,rgba(79,131,255,.22),transparent 30%),
    radial-gradient(circle at 84% 12%,rgba(214,179,106,.18),transparent 28%),
    linear-gradient(180deg,#050914 0%,#07111f 46%,#eef3f8 46%,#f7f9fc 100%);
  color:var(--ink);
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
.site-header{
  width:min(var(--container),calc(100% - 32px));
  margin:16px auto 0;
  padding:14px 16px;
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:space-between;
  border:1px solid var(--line);
  border-radius:26px;
  background:rgba(5,9,20,.72);
  backdrop-filter:blur(18px);
  position:sticky;
  top:14px;
  z-index:50;
  box-shadow:0 20px 80px rgba(0,0,0,.28);
}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{
  width:48px;height:48px;border-radius:16px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--gold));
  color:#fff;font-size:23px;font-weight:900;
}
.brand strong{display:block;font-size:18px}
.brand em{display:block;font-size:12px;font-style:normal;color:#9aa8c1;letter-spacing:.12em;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:7px}
.main-nav a,.nav-contact{
  border:0;background:transparent;color:#e7edf8;
  padding:10px 11px;border-radius:999px;font-weight:800;cursor:pointer;
}
.nav-contact{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.13)}
.menu-btn{display:none;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.08);color:#fff;padding:10px 14px;font-weight:900}
.label,.section-title>p,.official-copy>p,.download-banner p,.support-copy>p,.sub-hero>p{
  margin:0 0 12px;
  color:var(--gold);
  font-size:12px;
  font-weight:900;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.hero-prime{
  width:min(var(--container),calc(100% - 32px));
  margin:34px auto 24px;
  min-height:690px;
  position:relative;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:22px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:42px;
  background:#06101f;
  box-shadow:var(--shadow);
}
.hero-bg{
  position:absolute;inset:0;
  background:url("../images/hero-luxury-bg.webp") center/cover no-repeat;
  opacity:.78;
}
.hero-prime::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,9,20,.88),rgba(5,9,20,.55) 52%,rgba(5,9,20,.20));
}
.hero-content,.hero-device{position:relative;z-index:2}
.hero-content{padding:64px 58px;display:flex;flex-direction:column;justify-content:center}
.hero-content h1{
  font-size:clamp(54px,7vw,104px);
  line-height:.88;
  letter-spacing:-.075em;
  margin:10px 0 22px;
}
.hero-content span,.sub-hero span,.section-title>span,.official-copy span,.download-banner span,.support-copy span{
  display:block;
  color:var(--muted);
  font-size:17px;
  line-height:1.9;
  max-width:840px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn-primary,.btn-light,.btn-ghost,.download-cta,.mini-btn,.table-btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;padding:14px 22px;border:1px solid transparent;
  font-weight:900;cursor:pointer;
}
.btn-primary,.download-cta,.mini-btn,.table-btn{
  background:linear-gradient(135deg,var(--gold),#f0d486);
  color:#09111f;
}
.btn-light{background:#fff;color:#09111f}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff}
.hero-device{min-height:650px}
.orbit-card{
  position:absolute;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(16px);
  border-radius:30px;
  box-shadow:0 24px 60px rgba(0,0,0,.22);
}
.orbit-card img{object-fit:contain;filter:drop-shadow(0 24px 30px rgba(0,0,0,.38))}
.orbit-card.stax{width:330px;height:390px;left:110px;top:96px}
.orbit-card.stax img{max-height:340px}
.orbit-card.flex{width:190px;height:210px;right:54px;top:70px}
.orbit-card.flex img{max-height:160px}
.orbit-card.nano{width:205px;height:185px;right:80px;bottom:90px}
.orbit-card.nano img{max-height:145px}
.orbit-card.plus{width:175px;height:170px;left:44px;bottom:72px}
.orbit-card.plus img{max-height:130px}
.hero-meta{
  position:absolute;right:60px;bottom:300px;
  padding:18px 20px;border-radius:24px;
  background:rgba(5,9,20,.58);
  border:1px solid rgba(255,255,255,.15);
}
.hero-meta strong{display:block}
.hero-meta span{display:block;margin-top:4px;color:#aebbd0}
.prime-strip,.section,.download-banner,.sub-hero{
  width:min(var(--container),calc(100% - 32px));
  margin:28px auto;
}
.prime-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
}
.prime-strip article{
  padding:24px;border-radius:26px;
  background:rgba(255,255,255,.10);
  border:1px solid var(--line);
  color:#fff;
}
.prime-strip b{display:block;font-size:20px}
.prime-strip span{display:block;margin-top:8px;color:#c6d0e0}
.section,.sub-hero{
  padding:38px;
  border:1px solid rgba(7,17,31,.10);
  border-radius:34px;
  background:#fff;
  color:#0f172a;
  box-shadow:0 24px 70px rgba(15,23,42,.08);
}
.sub-main{padding-top:16px}
.sub-hero{
  background:#0b1220;
  color:#fff;
  border-color:rgba(255,255,255,.12);
}
.sub-hero h1{
  font-size:clamp(44px,6vw,82px);
  line-height:.94;
  letter-spacing:-.06em;
  margin:0 0 16px;
}
.section-title{margin-bottom:26px}
.section-title.center{text-align:center}
.section-title h2,.official-copy h2,.download-banner h2,.support-copy h2,.faq-section h2,.modal-panel h2{
  font-size:clamp(38px,5vw,66px);
  line-height:.95;
  letter-spacing:-.055em;
  margin:0 0 14px;
}
.section-title>span,.official-copy span,.support-copy span{color:#64748b}
.entry-grid,.official-grid,.product-grid,.info-grid{
  display:grid;gap:16px;
}
.entry-grid,.product-grid{grid-template-columns:repeat(4,1fr)}
.entry-card,.product-card,.official-grid article,.info-grid article{
  background:#f8fbff;
  border:1px solid #dce6f2;
  border-radius:26px;
  padding:24px;
}
.entry-card{
  min-height:350px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  text-align:left;
}
.entry-card small{
  color:#1d4ed8;font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:900;
}
.entry-card h3,.product-card h3,.official-grid h3,.info-grid h3,.support-qr h3{
  font-size:27px;line-height:1.06;letter-spacing:-.035em;margin:16px 0 10px;
}
.entry-card p,.product-card p,.official-grid p,.info-grid p,.support-qr p,.faq-section p,.site-footer p{
  color:#64748b;line-height:1.78;
}
.entry-card strong{word-break:break-word}
.entry-card.dark{background:#0b1220;color:#fff}
.entry-card.dark p,.entry-card.dark strong{color:#cbd5e1}
.entry-card.accent{background:#eaf2ff}
.contact-card{cursor:pointer;border-style:dashed}
.official-section{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.official-copy{
  background:#0b1220;color:#fff;border-radius:28px;padding:34px;
}
.official-copy span{color:#cbd5e1}
.official-grid{grid-template-columns:repeat(2,1fr)}
.product-card{min-height:540px;display:flex;flex-direction:column}
.pc-head{display:flex;justify-content:space-between;color:#1d4ed8;font-weight:900}
.product-card img{height:185px;object-fit:contain;margin:24px auto;filter:drop-shadow(0 20px 26px rgba(15,23,42,.15))}
.product-card ul{color:#64748b;padding-left:20px;margin:12px 0 20px}
.product-card li{margin:6px 0}
.product-card .mini-btn{margin-top:auto}
.table-wrap{overflow:auto;border:1px solid #dce6f2;border-radius:24px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:18px;border-bottom:1px solid #dce6f2}
th{background:#eaf2ff}
.download-banner{
  padding:42px;
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  border-radius:34px;
  background:linear-gradient(135deg,#0b1220,#1d4ed8);
  color:#fff;
  box-shadow:0 30px 90px rgba(15,23,42,.18);
}
.download-banner p{color:#bfdbfe}
.download-banner span{color:#dbeafe}
.download-cta{background:#fff;color:#1d4ed8;min-width:max-content}
.info-grid{grid-template-columns:repeat(3,1fr)}
.support-section{
  display:grid;grid-template-columns:1.05fr .75fr;gap:18px;
}
.support-copy,.support-qr{
  background:#fff;border:1px solid #dce6f2;border-radius:28px;padding:34px;
}
.support-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.support-tags em{
  font-style:normal;padding:9px 12px;background:#f8fbff;border:1px solid #dce6f2;border-radius:999px;font-size:13px;font-weight:800;
}
.support-qr{text-align:center}
.support-qr img{
  width:min(300px,100%);margin:0 auto 18px;padding:12px;border:1px solid #dce6f2;border-radius:24px;background:#fff;
}
.faq-section details{border-top:1px solid #dce6f2;padding:18px 0}
.faq-section summary{font-size:20px;font-weight:900;cursor:pointer}
.site-footer{
  margin-top:48px;
  background:#050914;color:#fff;
  padding:42px 6vw;
  display:flex;justify-content:space-between;gap:24px;
}
.site-footer strong{font-size:30px}
.site-footer p{color:#cbd5e1;max-width:760px}
.footer-links{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.footer-contact{
  border:1px solid rgba(255,255,255,.18);background:transparent;color:#fff;border-radius:999px;padding:12px 18px;font-weight:900;cursor:pointer;
}
.contact-modal{display:none;position:fixed;inset:0;z-index:100;align-items:center;justify-content:center}
.contact-modal.open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(5,9,20,.70);backdrop-filter:blur(10px)}
.modal-panel{
  position:relative;z-index:2;width:min(460px,calc(100% - 24px));
  background:#fff;color:#0f172a;border-radius:34px;padding:30px;text-align:center;box-shadow:0 30px 90px rgba(0,0,0,.28);
}
.modal-close{position:absolute;right:14px;top:10px;border:0;background:transparent;font-size:30px;cursor:pointer}
.modal-qr{width:min(300px,100%);margin:18px auto;padding:12px;border:1px solid #dce6f2;border-radius:24px;background:#f8fbff}
.modal-panel p{color:#64748b}
.modal-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:18px}
.float-contact{
  position:fixed;right:18px;bottom:18px;z-index:80;border:0;border-radius:999px;
  background:linear-gradient(135deg,var(--gold),#f0d486);color:#09111f;padding:14px 18px;font-weight:900;cursor:pointer;box-shadow:0 20px 44px rgba(0,0,0,.24);
}
body.lock{overflow:hidden}

@media(max-width:1120px){
  .main-nav{display:none}
  .main-nav.show{
    display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:flex-start;
    background:#0b1220;border:1px solid var(--line);border-radius:24px;padding:16px;box-shadow:var(--shadow);
  }
  .menu-btn{display:block}
  .hero-prime,.official-section,.support-section{grid-template-columns:1fr}
  .hero-device{min-height:480px}
  .prime-strip,.entry-grid,.product-grid{grid-template-columns:repeat(2,1fr)}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .download-banner,.site-footer{flex-direction:column;align-items:flex-start}
  .footer-links{align-items:flex-start}
}
@media(max-width:720px){
  .hero-prime{grid-template-columns:1fr;min-height:auto}
  .hero-content{padding:34px 24px}
  .hero-content h1{font-size:42px}
  .hero-device{display:none}
  .section,.download-banner,.sub-hero{padding:24px}
  .prime-strip,.entry-grid,.official-grid,.product-grid,.info-grid{grid-template-columns:1fr}
  .hero-actions,.modal-actions{flex-direction:column}
  .btn-primary,.btn-light,.btn-ghost,.download-cta,.footer-contact{width:100%}
}