:root{--dc-ink:#24302c;--dc-muted:#68706b;--dc-paper:#f4f1e9;--dc-line:#d4d6cb;--dc-green:#345c48;--dc-soft:#e2e7d9;--dc-ochre:#a9683f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--dc-paper);color:var(--dc-ink);font:16px/1.9 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}a{color:inherit;text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #b97847;outline-offset:4px}img{display:block;max-width:100%}.dc-frame{max-width:1420px;margin:auto;padding:0 42px;display:grid;grid-template-columns:155px minmax(0,1fr);gap:45px}.dc-canvas{min-width:0}.dc-rail{align-self:start;position:sticky;top:0;padding:42px 0;min-height:500px}.dc-wordmark{display:block;font-size:29px;font-weight:800;letter-spacing:-1.3px;text-decoration:none}.dc-wordmark 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