:root{
  --bg:#070A0F;
  --card:#0D1220;
  --line:#1A2540;
  --text:#EAF0FF;
  --muted:#9CB0D6;
  --blue:#19C2FF;
  --orange:#FF6A00;
  --glowB: 0 0 18px rgba(25,194,255,.55);
  --glowO: 0 0 18px rgba(255,106,0,.45);
  --r:16px;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
}

.bg{
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(25,194,255,.08), transparent),
    radial-gradient(900px 500px at 80% 20%, rgba(255,106,0,.08), transparent),
    var(--bg);
  color:var(--text);
  margin:0;
}

.wrap{ max-width:1050px; margin:0 auto; padding:18px; }

.header{ display:flex; align-items:center; justify-content:space-between; gap:14px; }
.brand{ display:flex; align-items:center; gap:12px; }

.mark{
  width:38px; height:38px; border-radius:10px;
  background: linear-gradient(135deg, var(--blue), var(--orange));
  box-shadow: var(--glowB), var(--glowO);
}

.title{ font-weight:800; letter-spacing:.2px; }
.tag{ color:var(--muted); font-size:13px; margin-top:2px; }

.nav{ display:flex; gap:10px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px; border-radius:999px;
  border:1px solid var(--line);
  color:var(--text);
  text-decoration:none;
  background: rgba(255,255,255,.02);
  cursor:pointer;
}

.btn:hover{ border-color: rgba(25,194,255,.5); }

.btn.primary{
  border:none;
  background: linear-gradient(135deg, var(--blue), var(--orange));
  box-shadow: var