:root{--bg:#f6f8fb;--card:#fff;--text:#1b2430;--muted:#5f6b7a;--line:#dfe5ec;--accent:#1f4f7a;--max:1080px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}header{background:#101923;color:#fff}header .wrap{max-width:var(--max);margin:auto;padding:20px 24px;display:flex;gap:24px;align-items:center;justify-content:space-between}.brand{font-weight:800;font-size:1.25rem;color:#fff}.tagline{color:#cbd5df;font-size:.92rem}nav a{color:#e7eef5;margin-left:18px;font-weight:600}main{max-width:var(--max);margin:auto;padding:38px 24px 64px}.hero,.card,.article{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 6px 24px rgba(25,40,55,.05)}.hero{padding:44px}.hero h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.1;margin:0 0 18px}.hero p{font-size:1.15rem;color:var(--muted);max-width:760px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}.card{padding:22px}.card h3{margin-top:0}.card p{color:var(--muted)}.article{padding:clamp(24px,5vw,52px);max-width:860px;margin:auto}.article h1{font-size:clamp(2rem,4vw,3rem);line-height:1.15}.article h2{margin-top:2.2rem;line-height:1.25}.article li{margin:.55rem 0}.eyebrow{font-size:.8rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.meta{color:var(--muted);font-size:.92rem}.lede{font-size:1.13rem;color:#394657}.toc{background:#f3f7fa;border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:26px 0}.related{margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}footer{background:#101923;color:#cbd5df}footer .wrap{max-width:var(--max);margin:auto;padding:28px 24px}@media(max-width:800px){header .wrap{display:block}nav{margin-top:10px}nav a{margin:0 14px 0 0}.grid{grid-template-columns:1fr}.hero{padding:30px}}