:root{--navy:#0e1e36;--navy2:#122b4d;--orange:#ff8a00;--soft:#f5f7fb;--text:#1b2430;--muted:#64748b;--line:#dbe3ee}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--soft);line-height:1.65}header{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:28px 20px;border-bottom:4px solid var(--orange)}.wrap{max-width:920px;margin:0 auto}.brand{font-weight:800;letter-spacing:.2px;font-size:20px}.subtitle{opacity:.85;margin-top:4px;font-size:14px}main{padding:32px 20px 56px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 12px 30px rgba(14,30,54,.07)}h1{font-size:32px;line-height:1.2;margin:0 0 10px}h2{font-size:20px;margin:30px 0 8px;color:var(--navy)}p,li{font-size:15.5px}small,.muted{color:var(--muted)}a{color:#0f5fa8}.notice{background:#fff7ed;border:1px solid #fed7aa;border-left:4px solid var(--orange);padding:14px 16px;border-radius:10px;margin:18px 0}nav{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}nav a{color:white;text-decoration:none;border:1px solid rgba(255,255,255,.28);padding:7px 11px;border-radius:999px;font-size:13px}footer{border-top:1px solid var(--line);padding:20px;color:var(--muted);font-size:13px;text-align:center;background:#fff}.button{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;padding:11px 16px;border-radius:10px;font-weight:700}code{background:#eef2f7;padding:2px 5px;border-radius:5px}ul{padding-left:20px}@media(max-width:600px){h1{font-size:26px}.card{padding:20px}}