:root{
  --bg:#f6f3ee;
  --card:#ffffff;
  --ink:#111827;
  --muted:#4b5563;
  --line:#e5e7eb;
  --accent:#1f6feb;
  --shadow:0 10px 30px rgba(17,24,39,.08);
  --radius:16px;
  --max:980px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, #ffffff 0%, var(--bg) 55%);
  color:var(--ink);
  line-height:1.6;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:24px}
.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{left:16px;top:16px;width:auto;height:auto;background:#fff;padding:10px 12px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);z-index:10}

.header{
  background: rgba(255,255,255,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter: blur(10px);
}
.brand{display:flex;align-items:center;gap:12px}
.mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#143b8c,#2a6bd8);box-shadow:0 12px 22px rgba(20,59,140,.18);position:relative}
.mark:before,.mark:after{content:"";position:absolute;border-radius:999px;background:rgba(255,255,255,.92)}
.mark:before{width:18px;height:6px;left:10px;top:12px}
.mark:after{width:22px;height:6px;left:8px;top:20px;opacity:.85}
.brand h1{font-size:16px;margin:0;letter-spacing:.2px}
.brand p{margin:0;color:var(--muted);font-size:12.5px}

.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding-top:10px;
}
.nav a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:var(--ink);
  font-size:13px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.nav a[aria-current="page"]{border-color:rgba(31,111,235,.45);box-shadow:0 10px 24px rgba(31,111,235,.10)}
.nav a:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(17,24,39,.08);text-decoration:none}

.hero{padding:28px 0 10px}
.hero h2{font-size:34px;line-height:1.15;margin:0 0 10px}
.hero .lead{color:var(--muted);max-width:70ch;margin:0}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.section{padding:22px}
.section h3{margin:0 0 10px;font-size:18px}
.section p{margin:10px 0}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.col-7{grid-column:span 7}
.col-5{grid-column:span 5}
@media (max-width:900px){.col-7,.col-5{grid-column:1/-1}.hero h2{font-size:28px}}

.kv{display:flex;flex-direction:column;gap:10px}
.kv .pill{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:12.5px}
.kv strong{color:var(--ink)}

.note{
  border-left:3px solid rgba(15,118,110,.55);
  padding:12px 14px;
  background:rgba(15,118,110,.06);
  border-radius:12px;
  color:var(--ink);
}

.ad-slot{
  border:1px dashed rgba(31,111,235,.35);
  border-radius:14px;
  background: rgba(31,111,235,.04);
  padding:14px;
  margin:18px 0;
}
.ad-slot .ad-label{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}
.ad-slot .ad-box{height:90px;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,.75),rgba(255,255,255,.35));margin-top:10px}

.footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:12.5px}
.footer a{color:inherit}
.list{margin:0;padding-left:18px}
.list li{margin:6px 0}
.small{font-size:12.5px;color:var(--muted)}
.code{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;font-size:13px;background:rgba(17,24,39,.04);padding:10px 12px;border-radius:12px;border:1px solid var(--line);overflow:auto}