:root{
    --ink:#122436; --ink-soft:#3c5163;
    --paper:#eef2f2; --paper-card:#ffffff; --line:#c9d3d2;
    --delft:#1e3a5f; --delft-deep:#0f2340;
    --gold:#c98a1f; --wine:#8c2a3a; --teal:#1f6f78;
    --radius:3px;
  }
  *{box-sizing:border-box;}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,"Microsoft YaHei",sans-serif;line-height:1.55;}
  h1,h2,.serif{font-family:Georgia,"Microsoft YaHei",serif;}
  .wrap{max-width:960px;margin:0 auto;padding:40px 24px 80px;}
  header.page-head{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:32px;}
  header.page-head h1{font-size:clamp(26px,4vw,36px);font-weight:700;margin:0 0 10px;color:var(--delft-deep);letter-spacing:-0.01em;}
  header.page-head p{max-width:640px;color:var(--ink-soft);font-size:15px;margin:0;}

  .layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
  @media (max-width:760px){.layout{grid-template-columns:1fr;}}

  .card{background:var(--paper-card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;margin-bottom:20px;}
  .card h2{font-size:16px;margin:0 0 16px;color:var(--delft-deep);}

  .field{margin-bottom:16px;}
  .field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px;}
  .field input[type=number]{
    width:100%;font-family:inherit;font-size:16px;padding:9px 10px;
    border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);
  }
  .checkbox-row{display:flex;align-items:center;gap:8px;margin-bottom:14px;}
  .checkbox-row input{width:16px;height:16px;}
  .checkbox-row label{font-size:14px;color:var(--ink);}
  .sub-options{
    margin-left:24px;padding-left:14px;border-left:2px solid var(--line);
    margin-bottom:14px;
  }
  .radio-line{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:13.5px;color:var(--ink-soft);}
  .radio-line input{margin:0;}

  .eligibility{
    font-size:13px;
    padding:10px 12px;
    border-radius:var(--radius);
    margin-top:4px;
  }
  .eligibility.ok{background:#e5f2ee;color:#1f6f4a;}
  .eligibility.bad{background:#f7f0f0;color:#8a6a6a;}

  table.breakdown{width:100%;border-collapse:collapse;font-size:14px;}
  table.breakdown td{padding:8px 0;border-bottom:1px solid var(--line);}
  table.breakdown td:last-child{text-align:right;font-variant-numeric:tabular-nums;font-weight:500;}
  table.breakdown tr.total td{border-bottom:none;padding-top:14px;font-weight:700;}
  table.breakdown tr.total td:first-child{color:var(--delft-deep);}
  table.breakdown tr.total td:last-child{color:var(--wine);font-size:20px;font-family:Georgia,"Microsoft YaHei",serif;}
  table.breakdown tr.minus td:last-child{color:var(--teal);}

  .headline{
    background:#eaf0f6;border:1px solid #c9d8e6;border-radius:var(--radius);
    padding:20px 22px;margin-bottom:18px;
  }
  .headline .num{font-family:Georgia,"Microsoft YaHei",serif;font-size:34px;font-weight:700;color:var(--delft-deep);}
  .headline .sub{font-size:13px;color:var(--ink-soft);margin-top:4px;}

  .note{margin-top:20px;font-size:12.5px;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:16px;}

  .site-nav{background:var(--delft-deep);border-bottom:1px solid #0a1c30;}
  .site-nav-inner{max-width:1080px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;}
  .site-nav .brand{font-family:Georgia,"Microsoft YaHei",serif;font-size:17px;font-weight:700;color:#fff;text-decoration:none;letter-spacing:-0.01em;}
  .site-nav nav{display:flex;gap:4px;flex-wrap:wrap;}
  .site-nav nav a{color:#cdd9e3;text-decoration:none;font-size:13.5px;padding:7px 12px;border-radius:var(--radius);}
  .site-nav nav a:hover{background:rgba(255,255,255,0.08);color:#fff;}
  .site-nav nav a.current{background:rgba(255,255,255,0.14);color:#fff;font-weight:600;}