:root{
  --bg:#07111f;
  --bg2:#0b1728;
  --card:#101f33;
  --card2:#13253b;
  --text:#f5f7fb;
  --muted:#9fb0c5;
  --line:rgba(255,255,255,.10);
  --accent:#55d6be;
  --accent2:#7be7d2;
  --warning:#ffcc66;
  --shadow:0 24px 70px rgba(0,0,0,.26);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 85% 5%, rgba(85,214,190,.14), transparent 30%),
    radial-gradient(circle at 10% 30%, rgba(68,120,255,.10), transparent 30%),
    var(--bg);
  color:var(--text);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
.container{width:min(1140px,calc(100% - 40px));margin:auto}
nav{
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(16px);
  background:rgba(7,17,31,.78);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-weight:850;letter-spacing:.05em}
.brand span{color:var(--accent)}
.nav-links{display:flex;gap:24px;color:var(--muted);font-size:.94rem}
.nav-links a:hover{color:white}
.hero{padding:84px 0 68px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.badge{
  display:inline-flex;gap:10px;align-items:center;padding:7px 12px;border-radius:999px;
  color:var(--accent2);background:rgba(85,214,190,.09);border:1px solid rgba(85,214,190,.22);
  font-weight:800;font-size:.78rem;letter-spacing:.09em;text-transform:uppercase
}
h1{font-size:clamp(3rem,7vw,6.3rem);line-height:.9;margin:22px 0 26px;letter-spacing:-.065em}
h1 span{color:var(--accent)}
.lead{font-size:1.14rem;color:#c9d4e2;max-width:700px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:12px;font-weight:800;border:1px solid var(--line);transition:.2s}
.btn-primary{background:var(--accent);color:#06231f;border-color:transparent}
.btn-primary:hover{transform:translateY(-1px);background:var(--accent2)}
.btn-secondary:hover{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.04)}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.pill{padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.045);border:1px solid var(--line);font-size:.82rem;color:#cdd7e4}
.preview{
  padding:14px;border-radius:28px;background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.025));
  border:1px solid var(--line);box-shadow:var(--shadow)
}
.preview img{display:block;width:100%;border-radius:18px;background:#fff}
section{padding:72px 0}
.section-kicker{font-size:.78rem;font-weight:900;letter-spacing:.13em;text-transform:uppercase;color:var(--accent)}
h2{font-size:clamp(2rem,4vw,3.35rem);line-height:1.05;margin:10px 0 18px;letter-spacing:-.04em}
.section-intro{color:var(--muted);max-width:760px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.feature,.download-card,.step,.notice{
  background:linear-gradient(180deg,var(--card2),var(--card));
  border:1px solid var(--line);border-radius:var(--radius)
}
.feature{padding:24px}
.num{font-size:.75rem;font-weight:900;color:var(--accent);letter-spacing:.12em}
.feature h3{margin:16px 0 8px;font-size:1.05rem}
.feature p{margin:0;color:var(--muted);font-size:.93rem}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.download-card{padding:24px;display:flex;flex-direction:column;min-height:290px}
.icon{
  width:44px;height:44px;border-radius:12px;background:rgba(85,214,190,.10);
  border:1px solid rgba(85,214,190,.20);display:grid;place-items:center;
  color:var(--accent);font-weight:900
}
.download-card h3{margin:18px 0 8px;font-size:1.25rem}
.download-card p{color:var(--muted);font-size:.92rem;margin:0 0 18px}
.version{font-size:.78rem;color:#cfd8e4;margin-top:auto}
.version strong{color:white}
.download-card .btn{margin-top:18px;width:100%}
.main-card{border-color:rgba(85,214,190,.36);box-shadow:0 0 0 1px rgba(85,214,190,.06)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.step{padding:22px}
.step strong{display:block;margin-bottom:8px}
.step p{margin:0;color:var(--muted);font-size:.91rem}
.notice{padding:22px 24px;margin-top:24px;border-color:rgba(255,204,102,.22);background:rgba(255,204,102,.055)}
.notice strong{color:var(--warning)}
.footer{padding:40px 0 54px;border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.small{font-size:.8rem;color:#8295ab}
@media(max-width:950px){
  .hero-grid{grid-template-columns:1fr}
  .preview{max-width:680px}
  .features,.steps{grid-template-columns:repeat(2,1fr)}
  .download-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .container{width:min(100% - 26px,1140px)}
  .nav-links{display:none}
  .hero{padding-top:54px}
  .features,.steps,.download-grid{grid-template-columns:1fr}
  section{padding:54px 0}
  h1{font-size:3.3rem}
}