:root{
  --rf-bg:#fff7f4;--rf-panel:#fff;--rf-ink:#231513;--rf-mute:#7a615b;--rf-line:#f0ddd6;
  --rf-coral:#f0603f;--rf-deep:#2a120d;--rf-gold:#f4a24c;--rf-code:#2a120d
}
@media (prefers-color-scheme:dark){:root{
  --rf-bg:#1a0f0c;--rf-panel:#241613;--rf-ink:#f3e4df;--rf-mute:#b89a92;--rf-line:#36211c;
  --rf-coral:#ff7a5c;--rf-deep:#0f0705;--rf-gold:#f4a24c;--rf-code:#140a07
}}
*{box-sizing:border-box}
body{margin:0;background:var(--rf-bg);color:var(--rf-ink);font:16px/1.65 "Inter",ui-sans-serif,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--rf-coral);text-decoration:none}a:hover{text-decoration:underline}
.rf-wrap{max-width:1020px;margin:0 auto;padding:0 22px}
.rf-top{border-bottom:1px solid var(--rf-line);background:var(--rf-bg)}
.rf-top .rf-wrap{display:flex;align-items:center;gap:16px;min-height:62px;flex-wrap:wrap}
.rf-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:var(--rf-ink);letter-spacing:-.3px}
.rf-brand img{width:26px;height:26px}
.rf-nav{margin-left:auto;display:flex;gap:22px;font-size:15px;flex-wrap:wrap}
.rf-nav a{color:var(--rf-mute);font-weight:500}.rf-nav a[aria-current],.rf-nav a:hover{color:var(--rf-coral)}
.rf-hero{text-align:center;padding:78px 0 56px}
.rf-kick{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--rf-coral);margin-bottom:16px}
.rf-hero h1{font-size:44px;line-height:1.1;letter-spacing:-1px;margin:0 auto 16px;max-width:720px}
.rf-hero p{font-size:19px;color:var(--rf-mute);max-width:600px;margin:0 auto 26px}
.rf-btn{display:inline-block;padding:13px 26px;border-radius:12px;font-weight:700;margin:0 6px}
.rf-btn-main{background:var(--rf-coral);color:#fff}.rf-btn-main:hover{text-decoration:none;filter:brightness(1.07)}
.rf-btn-ghost{border:1px solid var(--rf-line);color:var(--rf-ink);background:var(--rf-panel)}.rf-btn-ghost:hover{text-decoration:none}
.rf-sec{padding:56px 0;border-top:1px solid var(--rf-line)}
.rf-sec h2{font-size:27px;letter-spacing:-.4px;margin:0 0 30px;text-align:center}
.rf-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.rf-step{background:var(--rf-panel);border:1px solid var(--rf-line);border-radius:16px;padding:26px 22px;position:relative}
.rf-step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--rf-coral);color:#fff;font-weight:800;margin-bottom:14px}
.rf-step h3{margin:0 0 7px;font-size:17px}.rf-step p{margin:0;color:var(--rf-mute);font-size:15px}
.rf-band{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;text-align:center}
.rf-stat{flex:1 1 200px;padding:22px}
.rf-stat b{display:block;font-size:40px;letter-spacing:-1px;background:linear-gradient(120deg,var(--rf-coral),var(--rf-gold));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.rf-stat span{color:var(--rf-mute);font-size:14px}
pre.rf-code{background:var(--rf-code);color:#ffe3d6;padding:17px 19px;border-radius:14px;overflow-x:auto;font:13.5px/1.6 ui-monospace,Menlo,Consolas,monospace;max-width:760px;margin:0 auto}
.rf-code .p{color:var(--rf-gold)}.rf-code .s{color:#ffb59c}
code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em;background:color-mix(in srgb,var(--rf-coral) 13%,transparent);padding:1px 6px;border-radius:6px}
.rf-page{padding:50px 0 60px;max-width:750px}.rf-page h1{font-size:33px;letter-spacing:-.5px;margin:0 0 10px}
.rf-lead{color:var(--rf-mute);font-size:19px;margin:0 0 26px}.rf-page h2{font-size:21px;margin:30px 0 11px}
.rf-note{border-left:3px solid var(--rf-gold);background:var(--rf-panel);padding:12px 16px;border-radius:0 12px 12px 0;color:var(--rf-mute);margin:16px 0}
table.rf-t{width:100%;border-collapse:collapse;background:var(--rf-panel);border:1px solid var(--rf-line);border-radius:14px;overflow:hidden;font-size:15px}
.rf-t th,.rf-t td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--rf-line)}
.rf-t th{font-size:12px;letter-spacing:.5px;text-transform:uppercase;color:var(--rf-mute)}
.rf-t tr:last-child td{border-bottom:0}.rf-up{color:#1f9f6a;font-weight:600}.rf-scroll{overflow-x:auto}
.rf-foot{border-top:1px solid var(--rf-line);padding:26px 0;color:var(--rf-mute);font-size:14px}
.rf-foot .rf-wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.rf-foot nav{display:flex;gap:18px}
.rf-lost{text-align:center;padding:92px 22px}.rf-lost b{display:block;font-size:84px;color:var(--rf-coral);letter-spacing:-2px}.rf-lost p{color:var(--rf-mute);font-size:18px;margin:12px 0 24px}
@media (max-width:720px){.rf-steps{grid-template-columns:1fr}.rf-hero{padding:52px 0}.rf-hero h1{font-size:32px}}