:root{
  --bg:#F5F7FB;--surface:#FFFFFF;--surface2:#EEF2F8;--text:#141A26;--muted:#5B6578;--line:#DFE5EE;
  --brand:#2F5BEA;--brand-ink:#FFFFFF;--brand-soft:#E8EEFF;--accent:#FFB020;--danger:#C62828;
  --radius:14px;--shadow:0 1px 2px rgba(20,26,38,.05),0 6px 20px rgba(20,26,38,.06);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Malgun Gothic","Hiragino Sans","Yu Gothic UI","Microsoft YaHei","PingFang SC","Noto Sans CJK KR","Noto Sans",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0F131A;--surface:#171C25;--surface2:#1F2632;--text:#E8ECF3;--muted:#9AA4B5;--line:#2A3240;
  --brand:#6E8BFF;--brand-ink:#0F131A;--brand-soft:#1E2740;--accent:#FFC24D;--danger:#FF7B7B;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);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}
header.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header.top .wrap{display:flex;align-items:center;gap:12px;height:56px}
.logo{font-weight:800;font-size:19px;color:var(--text);letter-spacing:-.3px;display:flex;align-items:center;gap:8px}
.logo i{font-style:normal;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--brand);color:var(--brand-ink);font-size:15px}
.logo:hover{text-decoration:none}
.sp{flex:1}
.logo{white-space:nowrap}
.langmenu{position:relative}
.langmenu summary{list-style:none;cursor:pointer;font-size:14px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--text);white-space:nowrap}
.langmenu summary::-webkit-details-marker{display:none}
.langs{position:absolute;right:0;top:40px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;display:flex;flex-direction:column;min-width:140px;z-index:10}
.langs a{font-size:14px;padding:8px 12px;border-radius:8px;color:var(--text)}
.langs a:hover{background:var(--surface2);text-decoration:none}
.langs a.on{background:var(--brand-soft);color:var(--brand);font-weight:700}
.hero{padding:28px 0 8px}
.hero h1{margin:0;font-size:28px;letter-spacing:-.6px;line-height:1.3}
.hero p{margin:6px 0 0;color:var(--muted)}
.searchbox{margin:18px 0 12px;position:relative}
.searchbox input{width:100%;height:52px;border-radius:14px;border:1.5px solid var(--line);background:var(--surface);color:var(--text);font-size:17px;padding:0 16px 0 46px;outline:none;box-shadow:var(--shadow)}
.searchbox input:focus{border-color:var(--brand)}
.searchbox span{position:absolute;left:16px;top:14px;font-size:18px;opacity:.6}
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:7px 14px;font-size:14px;cursor:pointer}
.chip.on{background:var(--text);color:var(--bg);border-color:var(--text)}
.recent{margin:6px 0 4px;font-size:14px;color:var(--muted)}
.recent div{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.recent a{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px 10px;color:var(--text);font-size:13px}
.group h2{font-size:17px;margin:22px 0 10px;display:flex;align-items:center;gap:8px}
.group h2 small{font-weight:400;color:var(--muted);font-size:13px}
.ktip{font-size:14px;color:var(--muted);margin:-4px 0 10px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.card{position:relative;display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 40px 14px 14px;color:var(--text);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-1px)}
.card .ic{font-size:22px;line-height:1.2;flex:none}
.card b{display:block;font-size:15.5px;line-height:1.35}
.card small{display:block;color:var(--muted);font-size:13px;line-height:1.45;margin-top:3px}
.star{position:absolute;right:6px;top:8px;border:0;background:none;font-size:19px;color:var(--muted);cursor:pointer;padding:4px 6px;line-height:1}
.star.on{color:var(--accent)}
.empty{color:var(--muted);padding:30px 0;text-align:center}
/* 계산기 페이지 */
.crumb{font-size:13px;color:var(--muted);margin:18px 0 4px}
.crumb a{color:var(--muted)}
.ctitle{display:flex;align-items:flex-start;gap:10px}
.ctitle h1{margin:0;font-size:26px;letter-spacing:-.5px;line-height:1.3;flex:1}
.favbtn{border:1px solid var(--line);background:var(--surface);border-radius:10px;width:40px;height:40px;font-size:20px;cursor:pointer;color:var(--muted);flex:none}
.favbtn.on{color:var(--accent)}
.lead{color:var(--muted);margin:6px 0 16px}
.calcbox{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}
.calcbox>*{min-width:0}
@media(min-width:860px){.calcbox{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:start}.resultcard{position:sticky;top:72px}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 12px}
.field{min-width:0;grid-column:span 2}
@media(min-width:520px){.field.f-num,.field.f-money,.field.f-select,.field.f-date,.field.f-time{grid-column:span 1}.field.wide{grid-column:span 2}}
.field>label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field input[type=text],.field input[type=date],.field input[type=time],.field select,.field textarea{width:100%;min-height:46px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);font-size:16px;padding:9px 12px;outline:none;font-family:inherit}
.field textarea{resize:vertical;line-height:1.5}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand)}
.unitbox{position:relative}
.unitbox input{padding-right:62px!important}
.unit{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;pointer-events:none}
.help{font-size:12.5px;color:var(--muted);margin-top:4px;min-height:0}
.help:empty{display:none}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{border:1.5px solid var(--line);background:var(--surface);color:var(--text);border-radius:10px;padding:9px 12px;font-size:14.5px;cursor:pointer;font-family:inherit}
.seg button.on{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);font-weight:700}
.chk{display:flex;align-items:center;gap:8px;font-size:15px;cursor:pointer;min-height:30px}
.chk input{width:18px;height:18px}
.btn{border:0;background:var(--brand);color:var(--brand-ink);border-radius:10px;padding:11px 18px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit}
.rows .row{display:grid;grid-template-columns:repeat(var(--cols,2),minmax(0,1fr)) 32px;gap:6px;margin-bottom:6px}
.rows .row.head span{font-size:12.5px;color:var(--muted)}
.rows input,.rows select{width:100%;min-height:40px;border:1.5px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);font-size:15px;padding:6px 8px;font-family:inherit}
.rows .x{border:0;background:none;color:var(--muted);font-size:20px;cursor:pointer}
.rows .add{border:1.5px dashed var(--line);background:none;color:var(--brand);border-radius:8px;padding:8px;width:100%;cursor:pointer;font-family:inherit;font-size:14px}
.resultcard h2{margin:0 0 10px;font-size:15px;color:var(--muted);font-weight:600}
.r-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);align-items:baseline}
.r-row:last-child{border-bottom:0}
.r-l{color:var(--muted);font-size:14.5px}
.r-v{font-weight:700;text-align:right;font-variant-numeric:tabular-nums;word-break:break-all}
.r-v small{display:block;font-weight:400;color:var(--muted);font-size:12.5px}
.r-row.main{background:var(--brand-soft);border-radius:12px;padding:14px;border:0;margin-bottom:6px;flex-wrap:wrap}
.r-row.main .r-l{color:var(--text);font-weight:600}
.r-row.main .r-v{font-size:24px;color:var(--brand);letter-spacing:-.3px}
.r-head{font-size:14px;margin:16px 0 4px}
.r-note{font-size:13px;color:var(--muted);margin:10px 0 0}
.r-err{color:var(--danger);font-size:14px;padding:8px 0}
.tblwrap{overflow-x:auto;margin-top:8px}
.r-table{border-collapse:collapse;width:100%;font-size:13.5px;font-variant-numeric:tabular-nums}
.r-table th,.r-table td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:right;white-space:nowrap}
.r-table th:first-child,.r-table td:first-child{text-align:left}
.r-table th{color:var(--muted);font-weight:600}
.tools{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.tools button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:8px;padding:7px 12px;font-size:13.5px;cursor:pointer;font-family:inherit}
.excel{margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--surface2);border-radius:12px;padding:12px 14px;font-size:14px}
.excel a{font-weight:700;white-space:nowrap}
.ad{margin:18px 0;min-height:0}
article.doc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin-top:18px}
article.doc h2{font-size:19px;margin:0 0 10px}
article.doc h2:not(:first-child){margin-top:22px}
article.doc p,article.doc li{color:var(--text);font-size:15.5px}
article.doc ul,article.doc ol{padding-left:20px}
details{border-bottom:1px solid var(--line);padding:10px 0}
details summary{cursor:pointer;font-weight:600}
details p{margin:8px 0 0;color:var(--muted)}
.disc{font-size:13px;color:var(--muted);margin-top:14px}
.related{margin-top:18px}
.related h2{font-size:17px}
footer{margin-top:40px;padding:26px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:13.5px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center}
footer a{color:var(--muted)}
.page h1{font-size:26px}