:root{--ink:#10231f;--muted:#5a6b67;--line:#dfe9e6;--paper:#f7faf9;--brand:#0d6958;--accent:#e1a83a;--white:#fff;--shadow:0 22px 60px rgba(9,42,34,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--white);line-height:1.65}a{color:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(20,60,50,.08)}.nav{display:flex;align-items:center;justify-content:space-between;min-height:76px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:850}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#1da688);display:grid;place-items:center;color:#fff}.nav-links{display:flex;gap:25px;align-items:center}.nav-links 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input{flex:1}.cookie{position:fixed;left:20px;right:20px;bottom:20px;z-index:90;max-width:680px;padding:18px;border-radius:16px;background:#10231f;color:#fff;box-shadow:var(--shadow);display:none}.cookie.show{display:block}@media(max-width:850px){.hero-grid,.article-wrap,.footer-grid{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;padding:20px;background:#fff;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}.nav-links.open{display:flex}.nav-toggle{display:block;border:0;background:none;font-size:1.5rem}.hero{padding-top:60px}.hero-card{transform:none}.section-head{display:block}.toc{position:static}}