:root{--paper:#fff;--surface:#fcf9f8;--ink:#1c1b1b;--muted:#7e7576;--rule:#cfc4c5;--success:#2e7d32;--gutter:clamp(20px, 4vw, 56px);--shell:1320px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:var(--font-inter), Inter, system-ui, -apple-system, "Segoe UI", sans-serif;text-rendering:optimizelegibility;margin:0;line-height:1.5}img{max-width:100%;display:block}a{color:inherit;text-underline-offset:.18em}a:focus-visible{outline:3px solid var(--success);outline-offset:5px}.shell{width:min(100%, var(--shell));padding-inline:var(--gutter);margin-inline:auto}.site-header{z-index:10;border-bottom:1px solid var(--rule);background:#fffffff5;position:relative}.header-inner{justify-content:space-between;align-items:center;gap:28px;min-height:82px;display:flex}.brand{color:var(--ink);align-items:center;gap:12px;font-size:1.15rem;font-weight:700;text-decoration:none;display:inline-flex}.brand img{width:40px;height:40px}.header-inner 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