:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f7f9ff;color:#12203d}
*{box-sizing:border-box}body{margin:0;line-height:1.67}a{color:#1255b7}a:hover{text-decoration:underline}
.nv-head{background:#0a1737;color:#fff;padding:1rem 0}.nv-wrap{width:min(900px,92%);margin:auto}.nv-head a{color:#fff;text-decoration:none;font-weight:800;letter-spacing:.04em}
.nv-head nav{display:flex;flex-wrap:wrap;gap:1rem;margin-top:.6rem}.nv-head nav a{font-weight:500;font-size:.94rem}
.nv-card{width:min(900px,92%);margin:2rem auto;padding:clamp(1.25rem,4vw,2.3rem);border:1px solid #dde5f8;border-radius:17px;background:white;box-shadow:0 7px 25px #19295c12}
.nv-card h1{color:#0a1740;font-size:clamp(1.8rem,5vw,2.8rem);line-height:1.2;margin:.2rem 0 1rem}.nv-card h2{color:#0b3e8e;margin-top:1.6rem;font-size:1.23rem}.nv-card li{margin:.5rem 0}.nv-note{background:#eef5ff;padding:.85rem 1rem;border-left:4px solid #266ad5;border-radius:7px}
.nv-foot{background:#0a1737;color:#f0f5ff;padding:1.3rem 0;margin-top:3rem}.nv-foot a{color:#fff}.nv-foot-links{display:flex;flex-wrap:wrap;gap:1rem}
.nv-back{display:inline-block;margin-top:1rem;padding:.6rem 1rem;color:#fff;background:#1255b7;text-decoration:none;border-radius:8px;font-weight:650}.nv-meta{font-size:.9rem;color:#485a75}
@media(max-width:580px){.nv-card{margin:1rem auto}.nv-head nav{gap:.75rem}}