:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#1b1b1f;
  --muted:#5b5b66;
  --line:#e6e7ee;
  --accent:#ffcf33;
  --accent2:#111827;
  --shadow: 0 10px 24px rgba(17,24,39,.08);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background:var(--bg); color:var(--text); line-height:1.55}
a{color:inherit}
a:hover{opacity:.9}
.wrap{max-width:1100px;margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{left:18px;top:12px;width:auto;height:auto;background:var(--card);padding:10px 12px;border-radius:12px;box-shadow:var(--shadow);z-index:99}

.topbar{position:sticky;top:0;z-index:50;background:rgba(246,247,251,.9);backdrop-filter: blur(8px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.brand{font-weight:800;text-decoration:none;letter-spacing:.2px}
.nav{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.nav-link{text-decoration:none;padding:8px 10px;border-radius:12px}
.nav-link:hover{background:rgba(17,24,39,.06)}

.layout{display:grid;grid-template-columns: 300px 1fr;gap:18px; padding:18px 0 28px}
.layout.no-sidebar{grid-template-columns: 1fr}
.sidebar{position:sticky;top:72px;align-self:start}
.content{min-width:0}
.content.wide{max-width:820px;margin:0 auto}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.lead h1{margin:8px 0 6px;font-size: clamp(1.35rem, 2.2vw, 2rem);line-height:1.2}
.kicker{display:inline-flex;gap:8px;align-items:center;font-weight:700;color:#111827;background:rgba(255,207,51,.35);padding:6px 10px;border-radius:999px}
.meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:.92rem;margin:8px 0 12px;flex-wrap:wrap}
.muted{color:var(--muted)}
.small{font-size:.92rem}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;border:1px solid var(--line);background:#fff;color:#111827;padding:10px 14px;border-radius:14px;font-weight:700}
.btn:hover{transform: translateY(-1px)}
.btn.primary{background:var(--accent);border-color:rgba(0,0,0,.08)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}

.mini-title{font-weight:800;margin-bottom:10px}
.mini-nav ul{margin:0;padding-left:18px}
.mini-cta p{margin-top:0}
.pill{display:inline-block;margin-left:8px;padding:3px 8px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.82rem;vertical-align:middle}

.toc #toc ul{margin:0;padding-left:18px}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}

.link-list{margin:0;padding-left:18px}
.link-list li{margin:6px 0}

.faq{border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin:10px 0;background:rgba(17,24,39,.02)}
.faq summary{cursor:pointer;font-weight:800}
.faq-a{margin-top:8px;color:var(--muted)}

.table-wrap{overflow:auto;border-radius:14px;border:1px solid var(--line)}
.table{width:100%;border-collapse:collapse;min-width:520px}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.table th{background:rgba(17,24,39,.04)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:900px){
  .layout{grid-template-columns: 1fr}
  .sidebar{position:static}
  .grid-2{grid-template-columns:1fr}
}

.form-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.form-grid label{display:flex;flex-direction:column;gap:6px;font-weight:700}
input,select,textarea{padding:10px 12px;border:1px solid var(--line);border-radius:14px;font:inherit;background:#fff}
.result{margin-top:12px}
.result-box{border:1px dashed rgba(17,24,39,.25);border-radius:14px;padding:12px 14px;background:rgba(255,207,51,.18)}
.result-title{font-weight:800}
.result-value{font-size:1.3rem;font-weight:900;margin:6px 0}

.footer{border-top:1px solid var(--line);padding:18px 0 26px}
.footer-inner{display:flex;justify-content:center}