:root{--bg:#f7f8fa;--surface:#fff;--text:#14171f;--muted:#5b6475;--line:#e3e6ec;--brand:#0f6b5c;--brand-soft:#e6f3f0;--accent:#b4540f;--radius:14px}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;font-size:16px}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1040px;margin:0 auto;padding:0 16px}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}.logo{font-weight:800;font-size:1.15rem;color:var(--text);letter-spacing:-.3px}.logo span{color:var(--brand)}.site-nav{display:flex;gap:18px;font-size:.92rem}.site-nav a{color:var(--muted)}main.wrap{padding-top:28px;padding-bottom:48px}h1{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.2;letter-spacing:-.5px;margin-bottom:10px}h2{font-size:1.35rem;margin:36px 0 12px;letter-spacing:-.2px}h3{font-size:1.05rem;margin:18px 0 6px}p{margin:0 0 12px}.lead{font-size:1.08rem;color:var(--muted);max-width:720px}.breadcrumbs{font-size:.85rem;color:var(--muted);margin-bottom:14px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.answer{background:var(--brand-soft);border:1px solid #c4e2db;border-radius:var(--radius);padding:18px 20px;margin:20px 0}.answer strong{color:var(--brand)}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));grid-gap:12px;gap:12px;margin:20px 0}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.stat span{display:block;font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}.stat strong{font-size:1.35rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.calc{display:grid;grid-template-columns:1fr 1fr;grid-gap:24px;gap:24px;margin:24px 0}.calc-inputs{display:grid;grid-gap:12px;gap:12px}.calc-inputs label{display:grid;grid-gap:4px;gap:4px;font-size:.88rem;font-weight:600;color:var(--muted)}.calc-inputs input,.calc-inputs select{font:inherit;font-size:1rem;color:var(--text);padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:#fff;width:100%}.calc-inputs input:focus,.calc-inputs select:focus{outline:2px solid var(--brand);outline-offset:1px}.calc-result{background:var(--brand-soft);border-radius:12px;padding:18px}.eyebrow{font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;font-weight:700}.big,.eyebrow{color:var(--brand)}.big{display:block;font-size:2.2rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;margin:4px 0 12px}.calc-result dl{display:grid;grid-gap:6px;gap:6px;font-size:.92rem}.calc-result dl div{display:flex;justify-content:space-between;gap:12px;border-top:1px solid #cfe5df;padding-top:6px}.calc-result dt{color:var(--muted)}.calc-result dd{font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}table{width:100%;border-collapse:collapse;font-size:.92rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}td,th{padding:9px 12px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}td:first-child,th:first-child{text-align:left}thead th{background:#f0f2f5;font-size:.8rem;text-transform:uppercase;letter-spacing:.3px;color:var(--muted)}tr.highlight td{background:var(--brand-soft);font-weight:700}.links{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));grid-gap:8px;gap:8px;margin:12px 0}.links a{display:block;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:.92rem}.faq details,.links a{background:var(--surface)}.faq details{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:8px}.faq summary{cursor:pointer;font-weight:600}.faq details p{margin-top:8px;color:var(--muted)}.note{font-size:.85rem;color:var(--muted)}.ad-slot{margin:24px auto;width:100%;overflow:hidden;contain:layout}.ad-banner{min-height:100px}.ad-rectangle{min-height:280px}.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:24px 0;font-size:.85rem;color:var(--muted)}.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}.site-footer nav{display:flex;gap:16px}@media (max-width:720px){.calc{grid-template-columns:1fr}.site-nav{gap:12px;font-size:.85rem}.big{font-size:1.9rem}}