:root{--c:#1f5f99;--c2:#e8f0f8;--t:#1d2430;--m:#5b6573;--l:#dde3ea;--bg:#f7f9fb}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.65 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;color:var(--t);background:var(--bg);word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--c)}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
.top{background:#fff;border-bottom:1px solid var(--l)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;min-height:52px;gap:12px}
.brand{font-weight:700;text-decoration:none;color:var(--t)}
.top nav a{margin-left:14px;font-size:14px;text-decoration:none}
main{padding:12px 16px 40px}
.crumbs{font-size:13px;color:var(--m);margin:6px 0}
h1{font-size:26px;line-height:1.3;margin:8px 0 8px}
h2{font-size:20px;margin:32px 0 10px}
h3{font-size:16px;margin:0 0 6px}
.lead{color:var(--m);margin:0 0 16px}
.calc{background:#fff;border:1px solid var(--l);border-radius:12px;padding:16px;display:grid;gap:16px}
.fld{margin-bottom:12px}
.fld label{display:block;font-weight:600;font-size:15px;margin-bottom:4px}
.inrow{display:flex;align-items:center;gap:8px}
input[type=text],input[type=date],select{width:100%;font-size:17px;padding:10px 12px;border:1px solid #b9c3cf;border-radius:8px;background:#fff;color:var(--t);min-height:46px}
.unit{color:var(--m);white-space:nowrap;min-width:28px}
.check{display:flex!important;align-items:center;gap:8px;font-weight:500!important}
.check input{width:20px;height:20px}
button{width:100%;font-size:17px;font-weight:700;color:#fff;background:var(--c);border:0;border-radius:8px;min-height:48px;cursor:pointer}
.result{background:var(--c2);border-radius:10px;padding:14px}
.main{display:flex;flex-direction:column;margin:0 0 8px}
.main span{font-size:14px;color:var(--m)}
.main strong{font-size:28px;line-height:1.25;color:var(--c)}
dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:6px 12px;font-size:15px}
dt{color:var(--m)}
dd{margin:0;text-align:right;font-weight:600}
.muted{color:var(--m);margin:0}
.verified{font-size:13px;color:var(--m);margin:10px 0 0}
.ex{background:#fff;border:1px solid var(--l);border-radius:10px;padding:14px;margin:0 0 12px}
.ex .main strong{font-size:22px}
.basis{padding-left:20px}
details{background:#fff;border:1px solid var(--l);border-radius:10px;padding:12px 14px;margin:0 0 8px}
summary{font-weight:600;cursor:pointer}
details p{margin:8px 0 0}
.grid{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.grid a{display:block;background:#fff;border:1px solid var(--l);border-radius:10px;padding:14px;text-decoration:none;color:var(--t)}
.grid a strong{display:block;color:var(--c);font-size:17px}
.grid a span{display:block;color:var(--m);font-size:14px;margin-top:4px}
.grid.small{grid-template-columns:1fr 1fr}
.grid.small a{padding:10px 12px;font-size:15px}
.btn{display:inline-block;background:var(--c);color:#fff;text-decoration:none;padding:10px 16px;border-radius:8px;font-weight:700}
.prose h2{font-size:18px}
.foot{border-top:1px solid var(--l);background:#fff;font-size:13px;color:var(--m)}
.foot .wrap{padding:16px}
@media (min-width:760px){
  h1{font-size:30px}
  .calc{grid-template-columns:1fr 1fr;align-items:start;padding:20px}
  .grid{grid-template-columns:1fr 1fr}
  .grid.small{grid-template-columns:1fr 1fr 1fr}
}