:root{--ink:#16202c;--muted:#5b6778;--line:#e3e7ee;--bg:#f6f7fa;--card:#fff;--accent:#2f4bd8}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header{background:#0e1c36;color:#fff}
.topo{max-width:860px;margin:0 auto;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.marca{font-weight:700;letter-spacing:.2px;color:#fff;text-decoration:none}
nav a{color:#c9d3ea;text-decoration:none;font-size:14px;margin-left:16px}
nav a:hover{color:#fff}
main{max-width:860px;margin:0 auto;padding:32px 20px 64px}
article{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:32px clamp(18px,4vw,40px)}
h1{font-size:clamp(1.6rem,4vw,2.1rem);line-height:1.2;margin:0 0 6px}
h2{font-size:1.15rem;margin:30px 0 8px}
p,li{color:#243042}
.meta{color:var(--muted);font-size:14px;margin:0 0 22px}
ul{padding-left:22px}
a{color:var(--accent)}
.caixa{background:#f1f4fb;border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:16px 0}
footer{max-width:860px;margin:0 auto;padding:0 20px 40px;color:var(--muted);font-size:13px}