:root{
  --bg:#fffdf7;
  --panel:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --accent:#f97316;
  --accent2:#7c3aed;
  --border:rgba(17,24,39,.12);
}

html,body{height:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(900px 380px at 15% 0%, rgba(249,115,22,.10), transparent 55%),
  radial-gradient(900px 380px at 85% 10%, rgba(124,58,237,.08), transparent 55%), var(--bg);
  color:var(--text)}
a{color:inherit}
.container{max-width:1160px;margin:0 auto;padding:0 16px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.head{position:sticky;top:0;z-index:10;background:rgba(255,253,247,.90);backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--border)}
.row{display:flex;align-items:center;gap:14px;justify-content:space-between;padding:14px 0}
#logo a{display:inline-block;font-weight:900;text-decoration:none;padding:10px 12px;border-radius:14px;background:rgba(249,115,22,.12)}
.tagline{flex:1;min-width:0;color:var(--muted)}
.head-ads{min-width:180px;max-width:380px}

.frame{max-width:1160px;margin:0 auto;padding:16px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px;align-items:start}
.left-steps{background:rgba(255,255,255,.70);border:1px solid var(--border);border-radius:18px;padding:12px;position:sticky;top:78px}
.left-steps ol{margin:0;padding:0 0 0 18px;display:flex;flex-direction:column;gap:8px}
.left-steps a{text-decoration:none}
.left-steps li.active a{font-weight:900;color:var(--accent2)}

.lede{background:linear-gradient(90deg, rgba(249,115,22,.10), rgba(124,58,237,.08));border:1px solid var(--border);border-radius:18px;padding:12px 14px;margin-bottom:12px}
.lede p{margin:0;color:var(--muted)}

.columns{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:16px;box-shadow:0 10px 24px rgba(17,24,39,.08)}
.slot{background:rgba(255,255,255,.72);border:1px dashed rgba(17,24,39,.22);border-radius:18px;padding:12px;position:sticky;top:78px;height:fit-content}

#footer{border-top:1px solid var(--border);padding:16px 0;background:rgba(255,255,255,.70)}
#footer .social{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
#footer .social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;border:1px solid var(--border);background:#fff}
#footer p{margin:0;color:var(--muted)}

@media (max-width: 980px){
  .frame{grid-template-columns:1fr}
  .left-steps{position:relative;top:auto}
  .columns{grid-template-columns:1fr}
  .head-ads{display:none}
  .slot{position:relative;top:auto}
}