:root{--bg:#f7f8fa;--card:#fff;--text:#172033;--muted:#5e6b7a;--line:#e5e9ef;--accent:#1f5eff;--accent2:#0f3fb8;--max:1120px}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.nav{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:24px}.brand{font-weight:800;font-size:1.05rem;color:var(--text)}.navlinks{display:flex;flex-wrap:wrap;gap:18px;font-size:.95rem}main{padding:48px 0}.hero{padding:54px 0 30px}.hero h1{font-size:clamp(2rem,4vw,4rem);line-height:1.05;margin:0 0 18px;max-width:900px}.hero p{font-size:1.12rem;color:var(--muted);max-width:760px}.badge{display:inline-block;background:#eaf0ff;color:var(--accent2);padding:6px 10px;border-radius:999px;font-weight:700;font-size:.82rem;margin-bottom:16px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}.card h3{margin-top:0}.section{margin:44px 0}.section h2{font-size:1.7rem;margin-bottom:8px}.meta,.muted{color:var(--muted)}.btn{display:inline-block;background:var(--accent);color:#fff;padding:11px 16px;border-radius:10px;font-weight:700}.btn:hover{background:var(--accent2);text-decoration:none}.article{max-width:820px}.article h1{font-size:clamp(2rem,4vw,3.3rem);line-height:1.1}.article h2{margin-top:38px}.table{width:100%;border-collapse:collapse;background:#fff}.table th,.table td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.note{background:#fff8df;border:1px solid #f0df9f;padding:14px 16px;border-radius:12px}footer{border-top:1px solid var(--line);background:#fff;padding:28px 0;margin-top:60px;font-size:.9rem;color:var(--muted)}footer .links{display:flex;flex-wrap:wrap;gap:14px}@media(max-width:800px){.grid{grid-template-columns:1fr}.nav{align-items:flex-start;flex-direction:column;padding:14px 0}.navlinks{gap:12px}main{padding-top:28px}}