:root{
  --bg:#eef1f6; --ink:#101725; --soft:#5a6577; --line:#d6dbe6; --card:#ffffff;
  --brand:#3355ff; --brand-soft:#e6ebff;
  --sans:"Helvetica Neue",Arial,system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0c0f16;--ink:#e7eaf1;--soft:#98a2b4;--line:#232a38;--card:#141924;
    --brand:#6d86ff;--brand-soft:#182142;}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65}
.wrap{max-width:740px;margin:0 auto;padding:clamp(16px,4vw,40px)}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink)}
.logo{width:26px;height:26px;border-radius:7px;background:var(--brand);position:relative;flex:none}
.logo::after{content:"";position:absolute;inset:6px 8px;border:2px solid #fff;border-radius:2px;border-top:0}
.logo::before{content:"";position:absolute;top:5px;left:8px;right:8px;height:5px;background:#fff;border-radius:2px 2px 0 0}
.nav{display:flex;gap:16px;font-size:14px}
.nav a{color:var(--soft);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--brand)}
h1{font-size:clamp(24px,4vw,33px);letter-spacing:-.02em;line-height:1.15;text-wrap:balance;margin:.4em 0 .2em}
h2{font-size:20px;margin:1.7em 0 .3em}
p{margin:.7em 0}
a{color:var(--brand)}
.lead{color:var(--soft);font-size:17px;margin-bottom:1.4em}
.cta{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:800;
  padding:13px 22px;border-radius:11px;margin:14px 0}
ol,ul{padding-left:1.3em}
li{margin:.35em 0}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding:12px 0 12px 46px;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s);position:absolute;left:0;top:10px;width:30px;height:30px;
  background:var(--brand-soft);color:var(--brand);border-radius:8px;display:flex;align-items:center;
  justify-content:center;font-weight:800}
.priv{display:inline-flex;align-items:center;gap:7px;background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;padding:6px 12px;border-radius:20px;margin:6px 0 18px}
details{border:1px solid var(--line);border-radius:9px;padding:2px 14px;margin:8px 0;background:var(--card)}
summary{cursor:pointer;font-weight:700;padding:10px 0}
.adslot{margin:26px 0;min-height:90px;display:flex;align-items:center;justify-content:center;
  border:1px dashed var(--line);border-radius:10px;color:var(--soft);font-size:12px;background:var(--card)}
.related{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px}
.related a{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:8px 14px;
  font-size:13px;font-weight:600;text-decoration:none;color:var(--ink)}
.related a:hover{border-color:var(--brand);color:var(--brand)}
footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--soft)}
footer a{color:var(--soft)}