:root{--bg:#f5f7fb;--card:#fff;--ink:#162033;--muted:#667085;--line:#e4e7ec;--accent:#155eef;--accent2:#eaf1ff;--good:#067647;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;font-size:22px}.brand span{color:var(--accent)}.nav-links{display:flex;gap:20px;color:#475467;font-size:14px}.hero{padding:72px 0 44px}.eyebrow{display:inline-flex;padding:7px 11px;border-radius:999px;background:var(--accent2);color:var(--accent);font-weight:700;font-size:13px}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-2px;max-width:850px;margin:18px 0}.lead{max-width:720px;font-size:20px;color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;border-radius:12px;border:1px solid var(--line);background:#fff;font-weight:700}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.section{padding:34px 0}.section h2{font-size:30px;margin:0 0 18px}.grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 6px 18px rgba(16,24,40,.04)}.card h3{margin:0 0 8px;font-size:20px}.muted{color:var(--muted)}.tag{display:inline-flex;margin-top:14px;padding:5px 9px;border-radius:999px;background:#f2f4f7;color:#475467;font-size:12px;font-weight:700}.content{padding:46px 0}.content h1{font-size:42px;line-height:1.08;letter-spacing:-1.2px}.content h2{margin-top:34px}.notice{padding:16px 18px;border-radius:14px;background:#fffaeb;border:1px solid #fedf89;color:#7a2e0e}.tool{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.field{display:grid;grid-gap:7px;gap:7px;margin-bottom:14px}.field label{font-weight:700;font-size:14px}.field input,.field select{width:100%;padding:12px 13px;border:1px solid #d0d5dd;border-radius:10px;background:#fff;color:var(--ink);font:inherit}.result{margin-top:18px;padding:16px;border-radius:14px;background:#f0fdf4;border:1px solid #abefc6}.footer{margin-top:60px;padding:34px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.list{display:grid;grid-gap:9px;gap:9px;padding-left:18px}@media(max-width:760px){.nav-links{display:none}.grid{grid-template-columns:1fr}.hero{padding-top:48px}.hero h1{letter-spacing:-1px}.content h1{font-size:34px}}