@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

:root{--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--blue:#2563eb;--blue-dark:#1d4ed8;--soft:#f8fafc;--pale:#eff6ff;--green:#15803d;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--white);font-family:Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
.kb-nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.kb-nav-inner{max-width:1160px;height:64px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.kb-brand{display:flex;align-items:center;gap:0;text-decoration:none;font-family:'Plus Jakarta Sans',sans-serif;font-weight:800}
.kb-brand-mark{width:32px;height:32px;margin-right:10px;border-radius:8px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:11px}
.kb-nav-links{display:flex;align-items:center;gap:22px;font-size:13px;font-weight:600}
.kb-nav-links a{text-decoration:none;color:#475569}
.kb-nav-links .kb-button{color:#fff}
.kb-nav-links a:hover{color:var(--blue)}
.kb-button{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:12px 18px;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;font-size:14px}
.kb-button:hover{background:var(--blue-dark)}
.kb-hero{background:linear-gradient(145deg,#f8fbff 0%,#eef5ff 65%,#fff 100%);border-bottom:1px solid var(--line);padding:82px 24px 72px}
.kb-hero-inner{max-width:930px;margin:auto;text-align:center}
.kb-kicker{display:inline-flex;border:1px solid #bfdbfe;background:#fff;color:var(--blue);border-radius:999px;padding:6px 11px;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.kb-hero h1{margin:22px auto 18px;font-family:'Plus Jakarta Sans',sans-serif;font-size:clamp(38px,6vw,68px);line-height:1.04;letter-spacing:-.055em;max-width:930px}
.kb-hero p{margin:0 auto;color:#475569;font-size:18px;line-height:1.72;max-width:760px}
.kb-meta{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;margin-top:25px;color:#64748b;font-size:12px}
.kb-wrap{max-width:1120px;margin:auto;padding:64px 24px 100px;display:grid;grid-template-columns:230px minmax(0,760px);gap:70px;justify-content:center}
.kb-toc{position:sticky;top:90px;align-self:start;border-left:2px solid var(--line);padding-left:18px}
.kb-toc strong{font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.kb-toc a{display:block;margin-top:12px;color:var(--muted);font-size:13px;line-height:1.45;text-decoration:none}
.kb-toc a:hover{color:var(--blue)}
.kb-article{min-width:0}
.kb-answer{border:1px solid #bfdbfe;background:var(--pale);border-radius:14px;padding:23px 25px;margin-bottom:42px}
.kb-answer strong{display:block;color:var(--blue);font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.kb-answer p{margin:0;color:#1e3a8a;font-size:16px;line-height:1.7}
.kb-article h2{scroll-margin-top:90px;margin:56px 0 17px;font-family:'Plus Jakarta Sans',sans-serif;font-size:31px;letter-spacing:-.035em;line-height:1.2}
.kb-article h3{scroll-margin-top:90px;margin:34px 0 12px;font-family:'Plus Jakarta Sans',sans-serif;font-size:20px;letter-spacing:-.02em}
.kb-article p,.kb-article li{color:#334155;font-size:16px;line-height:1.78}
.kb-article ul,.kb-article ol{padding-left:24px}
.kb-article li+li{margin-top:9px}
.kb-callout{margin:32px 0;border-left:4px solid var(--blue);background:var(--soft);padding:20px 22px;border-radius:0 10px 10px 0}
.kb-callout p{margin:0}
.kb-table-wrap{overflow-x:auto;margin:26px 0}
.kb-table{width:100%;border-collapse:collapse;font-size:14px}
.kb-table th{background:#0f172a;color:#fff;text-align:left;padding:13px 14px}
.kb-table td{border:1px solid var(--line);padding:13px 14px;vertical-align:top;color:#334155;line-height:1.55}
.kb-steps{list-style:none!important;padding:0!important;counter-reset:steps}
.kb-steps li{counter-increment:steps;position:relative;padding:2px 0 24px 52px}
.kb-steps li:before{content:counter(steps);position:absolute;left:0;top:0;width:34px;height:34px;background:var(--blue);color:#fff;border-radius:9px;display:grid;place-items:center;font-weight:800;font-size:13px}
.kb-steps strong{display:block;color:var(--ink);margin-bottom:4px}
.kb-faq{border-top:1px solid var(--line);margin-top:16px}
.kb-faq details{border-bottom:1px solid var(--line);padding:17px 0}
.kb-faq summary{cursor:pointer;font-weight:700;line-height:1.5}
.kb-faq p{margin:10px 0 0;font-size:14px}
.kb-cta{margin-top:58px;padding:34px;border-radius:18px;background:#0f172a;color:#fff}
.kb-cta h2{color:#fff;margin:0 0 11px;font-size:27px}
.kb-cta p{color:#cbd5e1;margin:0 0 21px}
.kb-cards{max-width:1120px;margin:auto;padding:70px 24px 110px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.kb-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:15px;padding:26px;text-decoration:none;transition:.2s;background:#fff}
.kb-card:hover{border-color:#93c5fd;transform:translateY(-3px);box-shadow:0 18px 40px rgba(15,23,42,.08)}
.kb-card span{font-size:11px;color:var(--blue);font-weight:800;text-transform:uppercase;letter-spacing:.07em}
.kb-card h2{font-family:'Plus Jakarta Sans',sans-serif;font-size:22px;letter-spacing:-.03em;margin:15px 0 10px;line-height:1.25}
.kb-card p{color:var(--muted);font-size:14px;line-height:1.65;margin:0 0 24px}
.kb-card b{color:var(--blue);font-size:13px;margin-top:auto}
.kb-footer{border-top:1px solid var(--line);background:var(--soft);padding:32px 24px;color:var(--muted);font-size:12px}
.kb-footer-inner{max-width:1120px;margin:auto;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:800px){.kb-nav-links>a:not(.kb-button){display:none}.kb-wrap{grid-template-columns:1fr;padding-top:42px}.kb-toc{position:static;border-left:0;border-bottom:1px solid var(--line);padding:0 0 24px}.kb-cards{grid-template-columns:1fr}.kb-hero{padding-top:60px}.kb-hero p{font-size:16px}}