:root{--bc-ink:#0f172a;--bc-muted:#64748b;--bc-line:#e2e8f0;--bc-green:#047857;--bc-bg:#f6f8fb;--bc-card:#fff;--bc-orange:#ea580c}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bc-bg);color:var(--bc-ink);line-height:1.55}.bc-wrap{width:min(1120px,calc(100% - 30px));margin:auto}.bc-head{background:#fff;border-bottom:1px solid var(--bc-line)}.bc-head-in{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.bc-brand{font-weight:900;color:#0f172a;text-decoration:none}.bc-brand small{display:block;font-size:.64rem;color:var(--bc-muted);font-weight:700}.bc-nav{display:flex;gap:10px;flex-wrap:wrap}.bc-nav a,.bc-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 14px;border-radius:11px;text-decoration:none;font-size:.78rem;font-weight:850}.bc-nav a{color:#334155;background:#f8fafc;border:1px solid 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table{width:100%;border-collapse:collapse;font-size:.75rem}.bc-other th,.bc-other td{padding:12px 14px;border-bottom:1px solid #eef2f7;vertical-align:top;text-align:left}.bc-other th{background:#f8fafc;font-size:.65rem;text-transform:uppercase;color:#64748b}.bc-other p{margin:3px 0 0;color:var(--bc-muted);font-size:.68rem}.bc-method{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.bc-method article{padding:17px;border-radius:16px;background:#fff;border:1px solid var(--bc-line)}.bc-method b{display:block;margin-bottom:5px}.bc-method p{margin:0;color:var(--bc-muted);font-size:.78rem}.bc-cta{margin:34px 0 58px;padding:26px;border-radius:22px;background:#0f172a;color:#fff}.bc-cta h2{margin:0 0 7px}.bc-cta p{margin:0 0 16px;color:#cbd5e1;max-width:800px}.bc-cta .bc-btn.alt{background:#fff}.bc-foot{padding:22px 0 36px;color:#64748b;font-size:.7rem}.bc-foot a{color:#475569}.bc-note{padding:14px 15px;border-left:3px solid #94a3b8;background:#fff;color:#64748b;font-size:.78rem}.bc-anchor{scroll-margin-top:80px}@media(max-width:800px){.bc-intro-grid,.bc-method{grid-template-columns:1fr 1fr}.bc-tables{grid-template-columns:1fr}.bc-offer-top,.bc-source{display:block}.bc-badges{justify-content:flex-start;margin-top:9px}.bc-source a{display:inline-block;margin-top:7px}}@media(max-width:540px){.bc-head-in{align-items:flex-start;padding:12px 0}.bc-nav{justify-content:flex-end}.bc-nav a:first-child{display:none}.bc-intro-grid,.bc-method{grid-template-columns:1fr}.bc-hero{padding-top:38px}.bc-offer{padding:15px}}