:root{color-scheme:light;--ink:#172033;--muted:#5b6474;--line:#dde2ea;--accent:#2447d8;--surface:#fff}*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.72}main{width:min(780px,calc(100% - 32px));margin:48px auto;padding:48px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 16px 50px rgba(23,32,51,.07)}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.16;margin:.35rem 0 1.5rem}h2{margin:2rem 0 .6rem;font-size:1.25rem}p,li{color:#30394a}.eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.17em;color:var(--accent)}.meta{color:var(--muted);font-size:.92rem}.back{display:inline-block;margin-bottom:1.5rem}a{color:var(--accent);text-underline-offset:3px}nav{display:grid;gap:12px;margin:2rem 0}nav a{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:12px;text-decoration:none;font-weight:700}nav a:hover{border-color:var(--accent);background:#f7f9ff}footer{margin-top:3rem;padding-top:1.25rem;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}@media(max-width:600px){main{margin:0;width:100%;min-height:100vh;padding:30px 22px;border:0;border-radius:0;box-shadow:none}}