:root{--bg:#f6f8fb;--card:#fff;--text:#122033;--muted:#667085;--line:#e4e7ec;--brand:#2457ff;--brand-dark:#173fd0;--soft:#eef3ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}.container{width:min(1120px,100% - 32px);margin:0 auto}.site-header{z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:20px;min-height:68px;display:flex}.logo{letter-spacing:-.03em;font-size:1.25rem;font-weight:800}.logo span{color:var(--brand)}.nav{color:var(--muted);gap:18px;font-size:.95rem;display:flex}.hero{text-align:center;padding:72px 0 42px}.hero h1{letter-spacing:-.055em;max-width:800px;margin:0 auto 18px;font-size:clamp(2.3rem,6vw,4.5rem);line-height:1.02}.hero p{max-width:690px;color:var(--muted);margin:0 auto;font-size:1.08rem;line-height:1.7}.search{background:var(--card);border:1px solid var(--line);border-radius:16px;align-items:center;gap:12px;max-width:720px;margin:30px auto 0;padding:14px 18px;display:flex;box-shadow:0 10px 30px #1018280f}.search input{background:0 0;border:0;outline:0;flex:1;font-size:1rem}.section{padding:30px 0 70px}.section-title{justify-content:space-between;align-items:end;gap:16px;margin-bottom:20px;display:flex}.section-title h2{letter-spacing:-.03em;margin:0;font-size:1.7rem}.section-title p{color:var(--muted);margin:0}.grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;transition:all .2s;box-shadow:0 6px 20px #10182809}.card:hover{border-color:#cbd5ff;transform:translateY(-2px);box-shadow:0 12px 26px #10182813}.card .badge{background:var(--soft);color:var(--brand-dark);border-radius:999px;padding:6px 9px;font-size:.76rem;font-weight:700;display:inline-flex}.card h3{margin:14px 0 8px;font-size:1.06rem}.card p{color:var(--muted);margin:0;font-size:.92rem;line-height:1.55}.calculator-wrap{padding:48px 0 80px}.breadcrumbs{color:var(--muted);margin-bottom:18px;font-size:.9rem}.calculator-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:24px;display:grid}.calculator-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 10px 30px #1018280d}.calculator-card h1{letter-spacing:-.04em;margin:0 0 8px;font-size:clamp(1.8rem,4vw,2.8rem)}.calculator-card .intro{color:var(--muted);margin-bottom:24px;line-height:1.65}.form-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.field{flex-direction:column;gap:7px;display:flex}.field label{color:#344054;font-size:.88rem;font-weight:650}.field input,.field select{background:#fff;border:1px solid #d0d5dd;border-radius:12px;outline:none;width:100%;padding:12px 13px;font-size:1rem}.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2457ff1a}.result{background:var(--soft);border:1px solid #d8e2ff;border-radius:16px;margin-top:20px;padding:18px}.result small{color:var(--muted);margin-bottom:5px;display:block}.result strong{color:var(--brand-dark);font-size:1.65rem}.ad-box{text-align:center;color:#98a2b3;background:#ffffffbf;border:1px dashed #cfd5df;border-radius:18px;place-items:center;min-height:250px;padding:20px;font-size:.85rem;display:grid}.content-box{background:var(--card);border:1px solid var(--line);color:#344054;border-radius:18px;margin-top:20px;padding:24px;line-height:1.7}.footer{border-top:1px solid var(--line);color:var(--muted);background:#fff;padding:34px 0;font-size:.9rem}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:18px;display:flex}@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.calculator-layout{grid-template-columns:1fr}.ad-box{min-height:120px}}@media (max-width:620px){.nav{display:none}.hero{padding-top:48px}.grid,.form-grid{grid-template-columns:1fr}}