:root{--bg: #f6f7fb;--fg: #0e1324;--muted: #566079;--line: #e1e5ee;--card: #fff;--accent: #2547f4;--good: #047857;--bad: #b42318;--dark: #0b1020}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent)}code{padding:1px 6px;border-radius:6px;background:#2547f414;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--line);background:var(--card)}.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px;min-height:60px;padding-top:8px;padding-bottom:8px}.brand{display:flex;align-items:center;gap:10px;color:var(--fg);font-weight:700;text-decoration:none}.brand img{border-radius:7px}.site-nav{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:14px}.site-nav a{color:var(--muted);text-decoration:none}.site-nav a[aria-current=page]{color:var(--fg);font-weight:650}.site-footer{margin-top:56px;padding:28px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.page-head{padding:40px 0 8px}.page-head h1{margin:0 0 10px;font-size:clamp(30px,4.5vw,44px);line-height:1.1;letter-spacing:-.02em}.page-head p{max-width:720px;margin:0;color:var(--muted);font-size:18px}.calc{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:24px;margin-top:28px;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:0 10px 30px #0e13240f}.calc-form{display:grid;gap:14px}.field-block .hint{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.4}.field{display:grid;gap:6px}.label{font-size:14px;font-weight:600}.input-wrap{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:#fbfcfe}.input-wrap:focus-within,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2547f426}.input-wrap input{flex:1;min-width:0;height:44px;padding:0 12px;border:0;background:transparent;color:inherit;font:inherit;outline:none}.affix{padding:0 12px;color:var(--muted);font-size:14px}select{width:100%;height:44px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fbfcfe;color:inherit;font:inherit;outline:none}.toggle{display:flex;align-items:center;gap:10px;min-height:44px;font-weight:600;font-size:14px}.toggle input{width:20px;height:20px;accent-color:var(--accent)}.calc-results{position:sticky;top:16px;display:grid;align-content:start;align-self:start;gap:10px}.result{display:grid;gap:2px;padding:14px 16px;border:1px solid var(--line);border-radius:12px}.result-label{color:var(--muted);font-size:14px}.result strong{font-size:22px;letter-spacing:-.01em}.result small{color:var(--muted);font-size:13px}.result.primary{border-color:transparent;background:var(--dark);color:#fff}.result.primary .result-label,.result.primary small{color:#b8c0d6}.result.primary strong{font-size:32px}.result.primary.good strong{color:#6ee7b7}.result.primary.bad strong{color:#fca5a5}.content{max-width:760px}.content h2{margin:48px 0 10px;font-size:26px;letter-spacing:-.01em}.content h3{margin:24px 0 6px;font-size:18px}.content pre{overflow-x:auto;padding:16px 18px;border-radius:12px;background:var(--dark);color:#e6e9f2;font-size:13px}.content pre code{padding:0;background:none;color:inherit}.cta{margin-top:48px;padding:24px;border-radius:16px;background:var(--dark);color:#e6e9f2}.cta h2{margin-top:0;color:#fff}.cta a.button{display:inline-flex;align-items:center;height:44px;padding:0 18px;border-radius:10px;background:var(--accent);color:#fff;font-weight:650;text-decoration:none}details{padding:12px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:650}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin-top:28px}.card{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--card);color:inherit;text-decoration:none}.card h2{margin:0 0 6px;font-size:20px}.card p{margin:0 0 10px;color:var(--muted)}.card span{color:var(--accent);font-weight:650}.embed-credit{display:none}.embed body{background:transparent}.embed .site-header,.embed .page-head,.embed .content,.embed .site-footer{display:none}.embed .calc{margin:0;box-shadow:none}.embed .wrap{padding:0}.embed .embed-credit{display:block;margin:8px 4px 0;color:var(--muted);font-size:12px}@media(max-width:760px){.calc{grid-template-columns:minmax(0,1fr);padding:16px}.calc-results{position:static}}