:root{
  --bg:hsl(22, 18%, 10%);--surface:hsl(22, 16%, 15%);--text:hsl(22, 12%, 90%);--muted:hsl(22, 10%, 65%);
  --accent:hsl(202, 61%, 45%);--border:hsl(22, 14%, 24%);--radius:4px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI", Tahoma, Geneva, Verdana, sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.yxnu-wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.yxnu-nav{display:flex;align-items:center;justify-content:space-between;padding:22px 0}
.yxnu-brand{font-weight:700;font-size:1.25rem;letter-spacing:-.02em}
.yxnu-menu{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.yxnu-menu a{color:var(--muted);font-size:.95rem}
.yxnu-menu a:hover{color:var(--text);text-decoration:none}
.yxnu-hero{padding:108px 0 48px}
.yxnu-hero h1{font-size:clamp(2rem,5vw,4rem);line-height:1.1;margin:0 0 18px;letter-spacing:-.03em}
.yxnu-lead{font-size:1.15rem;color:var(--muted);max-width:52ch}
.yxnu-btn{display:inline-block;margin-top:26px;background:var(--accent);color:#fff;padding:12px 24px;border-radius:var(--radius);font-weight:600}
.yxnu-btn:hover{opacity:.9;text-decoration:none}
.yxnu-sec{padding:43px 0;border-top:1px solid var(--border)}
.yxnu-sec h2{font-size:1.6rem;margin:0 0 28px;letter-spacing:-.02em}
.yxnu-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.yxnu-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.yxnu-card h3{margin:0 0 8px;font-size:1.1rem}
.yxnu-card p{margin:0;color:var(--muted);font-size:.95rem}
.yxnu-stats{display:flex;flex-wrap:wrap;gap:44px}
.yxnu-stat b{display:block;font-size:2rem;letter-spacing:-.02em}
.yxnu-stat span{color:var(--muted);font-size:.9rem}
.yxnu-quote{font-size:1.35rem;line-height:1.5;max-width:60ch;margin:0}
.yxnu-quote footer{margin-top:14px;color:var(--muted);font-size:.95rem;font-style:normal}
.yxnu-foot{padding:36px 0;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
.yxnu-foot ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
@media(max-width:640px){.yxnu-menu{display:none}.yxnu-stats{gap:24px}}