:root{--bg:#fff;--bg-grad-1:#fff;--bg-grad-2:#f4f8ff;--bg-grad-3:#fff;--card:hsla(0,0%,100%,.85);--card-strong:hsla(0,0%,100%,.96);--text:#0f172a;--muted:#64748b;--border:rgba(15,23,42,.08);--accent:#60a5fa;--accent-strong:#3b82f6;--glow:rgba(96,165,250,.22);--shadow:0 16px 40px rgba(2,6,23,.08),0 2px 10px rgba(2,6,23,.05);--radius:18px}body,html{height:100%}body{margin:0;font-family:Verdana,Geneva,Tahoma,sans-serif;color:var(--text);background:radial-gradient(800px 500px at 20% -10%,hsla(0,0%,100%,.04),transparent 60%),radial-gradient(900px 600px at 90% 0,hsla(0,0%,100%,.03),transparent 65%),linear-gradient(180deg,var(--bg-grad-1),var(--bg-grad-2) 40%,var(--bg-grad-3))}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}.rt-container{width:min(1100px,92vw);margin:0 auto}.rt-row{display:flex;align-items:center;gap:12px}.rt-space-between{justify-content:space-between}.rt-header{position:-webkit-sticky;position:sticky;top:0;z-index:40;-webkit-backdrop-filter:blur(10px) saturate(120%);backdrop-filter:blur(10px) saturate(120%);background:color-mix(in oklab,var(--card),transparent 35%);border-bottom:1px solid var(--border)}.rt-header .rt-container{height:72px}.rt-brand{display:flex;align-items:center;gap:10px}.rt-logo-img{filter:drop-shadow(0 2px 8px var(--glow));border-radius:10px}.rt-title{font-weight:600;letter-spacing:-.01em;font-size:16px}.rt-nav{display:flex;gap:8px}.rt-link{padding:8px 12px;border:1px solid var(--border);border-radius:12px;background:color-mix(in oklab,var(--card),transparent 10%);box-shadow:var(--shadow);transition:background .2s ease,transform .04s ease}.rt-link:hover{background:var(--card-strong);text-decoration:none}.rt-link:active{transform:translateY(1px)}.rt-main{padding:28px 0 56px}.rt-hero{width:min(980px,92vw);margin:44px auto 16px}.rt-hero-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(8px) saturate(120%);backdrop-filter:blur(8px) saturate(120%)}.rt-h1{font-size:28px;font-weight:700;letter-spacing:-.02em;margin:10px 0 8px}.rt-sub{color:var(--muted);line-height:1.7}.rt-cta{display:flex;gap:10px;margin-top:18px}.rt-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:12px;border:1px solid var(--border);background:var(--card-strong);box-shadow:var(--shadow)}.rt-btn.primary{background:linear-gradient(180deg,#2f5bff,#243fd8);color:#fff;border-color:color-mix(in oklab,#2f5bff 80%,#000 0)}.rt-btn:hover{text-decoration:none;filter:saturate(1.05) brightness(1.05)}.rt-footer{border-top:1px solid var(--border);background:color-mix(in oklab,var(--card),transparent 35%);-webkit-backdrop-filter:blur(8px) saturate(120%);backdrop-filter:blur(8px) saturate(120%);padding:14px 0}.rt-muted{color:var(--muted);font-size:13px}@media (max-width:520px){.rt-header .rt-container{height:64px}.rt-logo-img{width:32px!important;height:32px!important}}@media print{.rt-footer,.rt-header{display:none!important}.rt-main{padding:0!important}}