:root{
  --maxw: 1100px;
  --pad: 18px;
  --radius: 14px;
  --border: #e6e6e6;
  --muted: #666;
  --bg: #ffffff;
  --card: #fafafa;
  --link: #0a58ca;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:#111;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.55}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
code,pre{font-family:var(--mono)}
pre{background:#0b1020;color:#e9ecf1;padding:14px;border-radius:12px;overflow:auto}
kbd{font-family:var(--mono);border:1px solid var(--border);border-bottom-width:2px;border-radius:8px;padding:2px 6px;background:#fff}
hr{border:0;border-top:1px solid var(--border);margin:28px 0}

.skip-link{
  position:absolute;left:-9999px;top:10px;background:#fff;padding:10px;border:1px solid var(--border);border-radius:10px;
}
.skip-link:focus{left:10px;z-index:9999}

.header{
  border-bottom:1px solid var(--border);
  position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter: blur(10px);
  z-index:1000;
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:12px var(--pad);
  display:flex;align-items:center;gap:14px;justify-content:space-between;
}
.brand{
  display:flex;gap:10px;align-items:center;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:#111;display:inline-block;
}
.brand-title{font-weight:800;letter-spacing:.2px}
.brand-tag{color:var(--muted);font-size:13px;margin-top:2px}
.nav{
  display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:flex-end;
}
.nav a{font-weight:600;font-size:14px;color:#111;opacity:.9}
.nav a:hover{opacity:1;text-decoration:none}
.nav .cta{
  border:1px solid #111;border-radius:999px;padding:8px 12px;
}

.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:22px var(--pad) 70px;
}
.breadcrumbs{
  font-size:13px;color:var(--muted);
}
.breadcrumbs a{color:var(--muted)}
.h1{font-size:34px;line-height:1.15;margin:12px 0 6px;font-weight:900}
.subtitle{color:var(--muted);max-width:75ch;margin:0 0 18px}
.grid{
  display:grid;grid-template-columns: 1.2fr .8fr;gap:18px;
}
@media (max-width: 900px){
  .grid{grid-template-columns:1fr}
  .header-inner{flex-wrap:wrap}
}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow: var(--shadow);
}
.card h2{margin:0 0 10px;font-size:18px}
.card p{margin:8px 0}
.pills{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 0}
.pill{border:1px solid var(--border);background:#fff;border-radius:999px;padding:4px 10px;font-size:12px;color:#111}
.muted{color:var(--muted)}
.small{font-size:13px}
.note{
  border-left:4px solid #111;
  padding:12px 12px 12px 14px;
  background:#fff;
  border-radius:12px;
  border:1px solid var(--border);
}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px;background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px 10px;border-bottom:1px solid var(--border);vertical-align:top}
th{background:#fbfbfb;text-align:left}
tr:last-child td{border-bottom:0}
.badge{display:inline-block;font-size:12px;border:1px solid var(--border);border-radius:999px;padding:3px 9px;background:#fff;margin-right:6px}
.buttons{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid #111;background:#111;color:#fff;
  padding:10px 14px;font-weight:700;font-size:14px;cursor:pointer;
}
.btn.secondary{background:#fff;color:#111;border-color:var(--border)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.toc{font-size:14px}
.toc a{display:block;padding:6px 0;color:#111}
.section{margin:24px 0}
.section h2{margin:0 0 10px;font-size:22px}
.section h3{margin:18px 0 8px;font-size:17px}

.footer{
  border-top:1px solid var(--border);
  padding:30px 0;
  color:var(--muted);
}
.footer-inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--pad);
  display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap;
}
.footer a{color:var(--muted)}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}

.ad-slot{
  border:1px dashed #cfcfcf;border-radius:12px;padding:10px;background:#fff;color:#777;
  font-size:13px;text-align:center;
}

form label{display:block;font-weight:700;margin:12px 0 6px}
input,select,textarea{
  width:100%;padding:10px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:14px;
}
textarea{min-height:120px}
.inline{
  display:flex;gap:10px;flex-wrap:wrap;
}
.inline > div{flex:1;min-width:200px}

.banner{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:99999;
  max-width:var(--maxw);margin:0 auto;
  background:#111;color:#fff;border-radius:16px;padding:14px 14px;
  display:none;box-shadow: var(--shadow);
}
.banner p{margin:0 0 10px;color:#eaeaea;font-size:14px}
.banner .banner-actions{display:flex;gap:10px;flex-wrap:wrap}
.banner .btn{border-color:#fff}
.banner .btn.secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}