:root{--bg: #f6f4ef;--panel: rgba(255, 255, 255, .78);--text: #0b0f14;--muted: rgba(11, 15, 20, .7);--border: rgba(11, 15, 20, .14);--shadow: 0 18px 60px rgba(11, 15, 20, .12);--accent: #0a7a64;--accent-ink: #06251f;--danger: #b42318;--radius: 16px;--radius-sm: 12px;--max: 1100px}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;color:var(--text);background:radial-gradient(1200px 800px at 20% 10%,rgba(10,122,100,.12),transparent 60%),radial-gradient(900px 700px at 80% 20%,rgba(254,165,28,.11),transparent 55%),linear-gradient(180deg,var(--bg),#ffffff);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,Noto Sans,Liberation Sans,sans-serif;line-height:1.5}a{color:inherit;text-decoration-thickness:.08em;text-underline-offset:.2em}a:hover{text-decoration-thickness:.12em}.wrap{max-width:var(--max);padding:28px 18px 48px;margin:0 auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0 10px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:750;letter-spacing:-.02em}.brand__mark{width:14px;height:14px;border-radius:4px;background:conic-gradient(from 220deg,var(--accent),#fea51c,var(--accent));box-shadow:0 10px 30px #0a7a6440}.nav{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:flex-end}.nav a{padding:8px 10px;border-radius:999px;border:1px solid transparent;color:var(--muted);text-decoration:none}.nav a:hover{border-color:var(--border);background:#fff9;color:var(--text)}.hero{margin:22px 0 18px;padding:18px 0 4px}.hero h1{font-family:ui-serif,Georgia,Cambria,Times New Roman,Times,serif;font-size:clamp(2.1rem,4vw,3.1rem);letter-spacing:-.03em;margin:0 0 10px}.hero p{margin:0;color:var(--muted);max-width:66ch;font-size:1.05rem}.bullets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:16px 0 6px;padding:0;list-style:none}.bullets li{border:1px solid 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svg{width:min(320px,100%);height:auto;display:block}.preview__placeholder{color:var(--muted);text-align:center;padding:10px}.preview__actions{display:flex;flex-wrap:wrap;gap:10px}.btn{appearance:none;border:1px solid rgba(10,122,100,.35);background:#0a7a641f;color:var(--accent-ink);border-radius:999px;padding:10px 14px;font:inherit;font-weight:650;cursor:pointer}.btn:hover{background:#0a7a6429}.btn:disabled{opacity:.45;cursor:not-allowed}.btn--ghost{border-color:var(--border);background:#fff9;color:var(--muted)}.btn--ghost:hover{background:#ffffffd9;color:var(--text)}.notice{margin:0;padding:10px 12px;border-radius:12px;border:1px solid rgba(180,35,24,.25);background:#b4231814;color:#b42318f2}.code{margin:0;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:#fffc;overflow:auto;font-size:.92rem}.content{margin-top:26px;max-width:74ch}.content h2{font-family:ui-serif,Georgia,Cambria,Times New Roman,Times,serif;letter-spacing:-.02em;margin:26px 0 10px}.content 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