:root{
  --ink:#12141a;--blue:#2563eb;--blue-deep:#1b4fd0;--blue-pale:#eaf1ff;
  --gray-bg:#f7f9fc;--line:#e6eaf0;--muted:#565f6d;--meta:#626973;
  --shadow:0 16px 38px rgba(20,40,80,.11),0 2px 6px rgba(20,40,80,.05);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{font-family:"Pretendard Variable",Pretendard,"Apple SD Gothic Neo",system-ui,sans-serif;
  color:var(--ink);background:#fff;font-size:16px;line-height:1.7;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{width:min(100% - 40px,1120px);margin-inline:auto}
.col{width:min(100% - 40px,760px);margin-inline:auto}

header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.head{display:flex;align-items:center;justify-content:space-between;height:66px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:21px;font-weight:800;letter-spacing:-.05em}
.logo .sym{position:relative;display:inline-flex;align-items:center;justify-content:center;width:31px;height:20px;background:var(--blue);color:#fff;font-size:11px;font-weight:800;letter-spacing:.03em;border-radius:6px;transform:translateY(-3px)}
.logo .sym::after{content:"";position:absolute;right:7px;bottom:-4px;border-left:7px solid transparent;border-right:3px solid transparent;border-top:5px solid var(--blue)}
.head nav{display:flex;gap:30px;margin-inline:auto;font-size:14.5px;font-weight:600;color:#3d4553}
.head nav a:hover,.head nav a.on{color:var(--blue)}
.head-right{display:flex;align-items:center;gap:34px}
.head .cta{background:var(--ink);color:#fff;font-size:14px;font-weight:700;padding:10px 18px;border-radius:10px;white-space:nowrap}
.head .cta:hover{background:var(--blue)}
.lang{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:700;white-space:nowrap}
.lang b{color:var(--ink)}
.lang i{font-style:normal;color:var(--line)}
.lang span{color:var(--meta)}

.top{background:linear-gradient(180deg,#eef4ff 0%,#f7fafd 70%,#fff 100%);padding:52px 0 44px}
.cat{font-size:13.5px;font-weight:700;color:var(--blue)}
h1{margin-top:14px;font-size:clamp(27px,3.4vw,40px);font-weight:800;letter-spacing:-.045em;line-height:1.36}
.meta{margin-top:20px;display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:var(--meta)}
.meta b{color:var(--ink);font-weight:600}

.answer{margin-top:30px;background:#fff;border:1px solid #dce5f6;border-left:4px solid var(--blue);
  border-radius:12px;padding:22px 26px 24px}
.answer .t{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:-.01em}
.answer p{margin-top:12px;font-size:16.5px;line-height:1.8}
.answer p + p{margin-top:12px}
.answer em{font-style:normal;font-weight:700;color:var(--blue)}

.toc{display:block;margin:26px 0 0}
.toc ol{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;list-style:none}
.toc a{display:block;padding:7px 14px;background:#fff;border:1px solid var(--line);border-radius:999px;
  font-size:13.5px;font-weight:600;color:#4a5464;line-height:1.4;white-space:nowrap;
  transition:border-color .15s,color .15s}
.toc a:hover{border-color:var(--blue);color:var(--blue)}

article{padding:14px 0 72px;counter-reset:sec}
h2{margin:76px 0 22px;font-size:clamp(21px,2.3vw,27px);font-weight:800;letter-spacing:-.04em;line-height:1.42;scroll-margin-top:96px}
article > h2{counter-increment:sec;position:relative;padding-left:15px}
article > h2::before{content:"— " counter(sec,decimal-leading-zero);position:absolute;left:15px;top:-30px;
  font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:.14em;font-variant-numeric:tabular-nums}
article > h2::after{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--blue)}
h3{margin:40px 0 12px;font-size:18px;font-weight:700;letter-spacing:-.03em}
article p{margin-top:19px;font-size:16.5px;line-height:2;color:#2b303a}
article p b{font-weight:700;color:var(--ink)}
.small{font-size:13.5px;color:var(--meta);line-height:1.7}

/* 본문 안의 짧은 목록 — 카드로 만들지 않는다 */
.plain{margin-top:20px;list-style:none}
.plain li{position:relative;padding-left:17px;margin-top:13px;font-size:16.5px;line-height:1.95;color:#2b303a}
.plain li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;border-radius:50%;background:var(--blue)}
.plain li b{font-weight:700;color:var(--ink)}

/* 문답형 단락 */
.qa{margin-top:46px;padding-top:36px;border-top:1px solid var(--line)}
.qa:first-of-type{border-top:0;padding-top:0}
.qa .q{font-size:19px;font-weight:800;letter-spacing:-.035em;line-height:1.5}
.qa p{margin-top:16px}

/* 수치 강조 한 줄 */
.figure{margin-top:28px;background:var(--blue-pale);border-radius:14px;padding:20px 22px}
.figure b{display:block;font-size:26px;font-weight:800;color:var(--blue);letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.figure span{display:block;margin-top:6px;font-size:14px;color:var(--blue-deep);line-height:1.7}

table{width:100%;border-collapse:collapse;margin-top:26px;font-size:15px;border:1px solid var(--line)}
caption{caption-side:top;text-align:left;font-size:13.5px;color:var(--meta);padding-bottom:10px}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
thead th{background:var(--gray-bg);font-size:13.5px;font-weight:700;white-space:nowrap;border-bottom:1px solid var(--line)}
th.num,td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
td small{display:block;font-size:12.5px;color:var(--meta);margin-top:4px;line-height:1.55}
tbody tr.mine td{background:var(--blue-pale)}
tbody tr.mine td:first-child{font-weight:700}
.tnote{margin-top:13px;font-size:13px;color:var(--meta);line-height:1.7}
.scroller{overflow-x:auto}

/* 숫자 비교표: 열 폭을 고정해 값끼리 붙여서 읽게 한다 */
table.compare{table-layout:fixed}
table.compare th:first-child,table.compare td:first-child{width:26%}

.faq{margin-top:22px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:21px 0;font-size:16.5px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;letter-spacing:-.03em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-weight:800;flex:none}
.faq details[open] summary::after{content:"−"}
.faq p{margin:0 0 22px;font-size:15.5px;line-height:1.95;color:var(--muted)}

.src{margin-top:56px;background:var(--gray-bg);border-radius:16px;padding:24px 26px;font-size:14px;color:var(--muted);line-height:1.8}
.src .t{font-size:13.5px;font-weight:800;color:var(--ink);margin-bottom:10px}
.src a{color:var(--blue);font-weight:600}
.src ul{margin-top:8px;list-style:none}
.src li{margin-top:6px;padding-left:14px;position:relative}
.src li::before{content:"";position:absolute;left:0;top:11px;width:4px;height:4px;border-radius:50%;background:var(--line)}

.more{background:var(--gray-bg);padding:56px 0}
.more h2{margin:0 0 22px;font-size:24px}
.more .g{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.more a{background:#fff;border-radius:16px;padding:22px 24px}
.more .c{font-size:12.5px;font-weight:700;color:var(--blue)}
.more h3{margin:8px 0 0;font-size:17px;font-weight:700;line-height:1.5}
.more p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.7}
.more a:hover{box-shadow:0 10px 26px rgba(37,99,235,.09)}

footer{padding:44px 0 52px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line)}
.f-top{display:flex;justify-content:space-between;gap:36px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.f-top p{max-width:44em;line-height:1.8;margin-top:12px}
.f-links{display:flex;gap:18px;font-weight:600;white-space:nowrap}
.f-bot{padding-top:16px;display:flex;justify-content:space-between;gap:20px;font-size:12.5px;color:var(--meta)}

@media (max-width:820px){
  .head nav,.lang{display:none}
  .more .g{grid-template-columns:1fr}
  .f-top{flex-direction:column;gap:18px}
  .f-links{flex-wrap:wrap}
}