:root{--ink:#111318;--muted:#646a73;--line:#e4e7eb;--soft:#f6f7f8;--white:#fff;--green:#22a866;--amber:#d69a24;--red:#d94a4a;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--white);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:DM Sans,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,a{font:inherit}button{-webkit-tap-highlight-color:transparent}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;width:min(1180px,100% - 48px);height:76px;margin:0 auto;display:flex}.brand{color:var(--ink);letter-spacing:.16em;font-family:Manrope,sans-serif;font-size:19px;font-weight:800;text-decoration:none}.demo-label{color:var(--muted);font-size:13px;font-weight:600}.section-shell{width:min(1180px,100% - 48px);margin:0 auto}.section-shell.narrow{width:min(1040px,100% - 48px)}.hero{grid-template-columns:minmax(0,.92fr) 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