:root{
  --brand:#2C8C9E; --brand-dark:#1B5E6E; --brand-tint:#E4F1F3;
  --bg:#F3F6F6; --surface:#FFFFFF; --line:#E2E8E8; --line-soft:#EEF2F2;
  --text:#1E2A2C; --text-sub:#647072; --ok:#2E7D52; --warn:#C2761A;
  --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Pretendard,system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.75}

/* 헤더 */
.topnav{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 20px;background:rgba(255,255,255,.9);backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text)}
.mascot{width:36px;height:36px;border-radius:11px;background:radial-gradient(120% 120% at 30% 25%, #5FB4C4 0%, var(--brand) 55%, var(--brand-dark) 100%);display:flex;align-items:center;justify-content:center;color:#fff}
.mascot svg{width:19px;height:19px}
.brand b{font-weight:700;font-size:17px;display:block;line-height:1.1}
.brand small{color:var(--text-sub);font-size:11.5px;font-weight:500}
.topnav .cta{font-size:13.5px;font-weight:600;color:#fff;background:linear-gradient(180deg,#3FA0B2 0%,var(--brand) 50%,var(--brand-dark) 100%);padding:9px 16px;border-radius:10px;text-decoration:none;white-space:nowrap}

/* 본문 */
.wrap{max-width:760px;margin:0 auto;padding:30px 22px 70px}
.crumb{font-size:13px;color:var(--text-sub);margin-bottom:14px}
.crumb a{color:var(--brand-dark);text-decoration:none}
.crumb a:hover{text-decoration:underline}
article h1{font-size:29px;font-weight:800;letter-spacing:-.5px;line-height:1.3;margin-bottom:10px}
.lead{color:var(--text-sub);font-size:16px;margin-bottom:8px}
.meta{font-size:13px;color:var(--text-sub);padding-bottom:18px;margin-bottom:24px;border-bottom:1px solid var(--line)}

article h2{font-size:21px;font-weight:700;letter-spacing:-.3px;margin:34px 0 12px;padding-top:6px}
article h3{font-size:17.5px;font-weight:700;margin:24px 0 8px}
article p{margin:0 0 14px}
article ul,article ol{margin:0 0 16px 1.2em}
article li{margin:0 0 6px}
article strong{font-weight:700;color:var(--brand-dark)}
article a{color:var(--brand-dark)}
article blockquote{margin:0 0 18px;padding:14px 18px;background:var(--brand-tint);border-left:3px solid var(--brand);border-radius:0 10px 10px 0}
article blockquote p{margin:0 0 6px}
article blockquote p:last-child{margin:0;font-size:14px;color:var(--text-sub)}

article table{width:100%;border-collapse:collapse;margin:8px 0 22px;font-size:15px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
article th,article td{padding:10px 13px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
article thead th{background:#FAFCFC;font-weight:600;color:var(--text-sub);font-size:13.5px}
article tbody tr:last-child td{border-bottom:none}
article td:not(:first-child),article th:not(:first-child){white-space:nowrap}

/* CTA 박스 */
.tool-cta{margin:30px 0 0;padding:18px 20px;background:var(--brand-tint);border:1px solid var(--line);border-radius:14px}
.tool-cta b{color:var(--brand-dark)}
.tool-cta a.btn{display:inline-block;margin-top:10px;font-size:15px;font-weight:600;color:#fff;background:linear-gradient(180deg,#3FA0B2 0%,var(--brand) 50%,var(--brand-dark) 100%);padding:11px 20px;border-radius:11px;text-decoration:none}

/* 더 보기 */
.more{margin-top:40px;padding-top:22px;border-top:1px solid var(--line)}
.more h2{font-size:17px;margin:0 0 12px}
.more ul{list-style:none;margin:0}
.more a{display:block;padding:11px 14px;background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:8px;text-decoration:none;color:var(--text);font-size:15px;font-weight:500}
.more a:hover{border-color:var(--brand);color:var(--brand-dark)}

/* 가이드 허브 */
.hub-hero{text-align:center;padding:14px 0 26px}
.hub-hero h1{font-size:30px;font-weight:800;letter-spacing:-.5px}
.hub-hero p{color:var(--text-sub);font-size:16px;margin-top:10px}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:14px}
.hub-card{display:block;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--text);transition:border-color .12s,transform .08s}
.hub-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.hub-card b{display:block;font-size:17px;font-weight:700;margin-bottom:6px;letter-spacing:-.2px}
.hub-card span{display:block;color:var(--text-sub);font-size:14px;line-height:1.55}

.foot{max-width:760px;margin:0 auto;padding:26px 22px 50px;color:var(--text-sub);font-size:12.5px;text-align:center;line-height:1.7;border-top:1px solid var(--line)}
.foot a{color:var(--brand-dark);text-decoration:none}

@media (max-width:600px){
  article h1{font-size:24px}
  .wrap{padding:22px 16px 50px}
  article table{font-size:13.5px}
  article th,article td{padding:8px 10px}
}