:root{--bg:#fbfaf7;--surface:#fff;--text:#1d1d1b;--muted:#6c6a64;--border:#dfddd7;--accent:#245a78;--accent-soft:#eaf1f5;--max:1120px;--reading:740px;--radius:12px;--shadow:0 10px 30px #181b1d0f;--serif:Georgia, "Times New Roman", serif;--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:var(--sans);margin:0;line-height:1.7}a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:.08em}a:hover{color:var(--accent)}img{max-width:100%;height:auto}:focus-visible{outline-offset:4px;outline:3px solid #8db8d0}.site-shell{flex-direction:column;min-height:100vh;display:flex}.container{width:min(calc(100% - 40px), var(--max));margin-inline:auto}.site-header{border-bottom:1px solid 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