/* 안내 페이지 공통 모양 (첫 화면 index.html 과 같은 색·글꼴) */
:root{
  --bg:#FFFFFF; --bg2:#F5F7FA; --hero:#EAF1FE; --text:#1D2433; --sub:#5F6B7A; --line:#E3E7ED; --field:#CBD2DC;
  --primary:#1B6EF3; --primary-d:#1259CC; --primary-soft:#EEF4FF; --red:#D23F3F; --red-soft:#FDF2F2; --amber-soft:#FFF6E0;
  --foot:#232B37; --foot-text:#AAB3BF; --foot-todo:#F2B8A0; --on-primary:#FFFFFF;
  --font:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 var(--font);-webkit-font-smoothing:antialiased;word-break:keep-all;padding-bottom:calc(66px + env(safe-area-inset-bottom,0px))}
h1,h2,h3,p,ul,ol,dl,dd{margin:0}
a{color:inherit;text-decoration:none}
.wrap{max-width:860px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* 머리 */
.hd{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;height:60px;max-width:960px}
.logo{font-weight:700;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.logo span{font-weight:400;font-size:13px;color:var(--sub);margin-left:6px}
.hd nav{display:flex;align-items:center;gap:2px}
.hd nav a.lk{display:none;padding:8px 10px;font-size:15px;color:var(--sub)}
.hd nav a.lk:hover,.hd nav a.lk[aria-current="page"]{color:var(--text)}
@media (min-width:860px){.hd nav a.lk{display:inline-block}}
@media (max-width:520px){.logo span{display:none}}
.hd nav .btn{white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--primary);background:var(--primary);color:var(--on-primary);border-radius:6px;font-weight:700;font-size:16px;padding:12px 18px;min-height:50px;text-align:center;line-height:1.3}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn.line{background:var(--bg);color:var(--primary)}
.btn.sm{font-size:14px;min-height:38px;padding:7px 14px}

/* 본문 */
.crumb{font-size:13px;color:var(--sub);padding-top:18px}
.crumb a{text-decoration:underline;text-underline-offset:3px}
.crumb span{margin:0 6px;color:var(--field)}
article{padding-block:10px 40px}
article h1{font-size:27px;line-height:1.35;letter-spacing:-.02em;margin-top:10px}
@media (min-width:820px){article h1{font-size:32px}}
article .lead{font-size:17px;color:#3A4352;margin-top:14px}
article h2{font-size:21px;line-height:1.4;letter-spacing:-.02em;margin-top:40px;padding-top:4px}
article h3{font-size:17px;margin-top:22px}
article p{margin-top:10px}
article ul,article ol{margin-top:10px;padding-left:22px;display:grid;gap:4px}
article strong{font-weight:700}
article a.in{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.updated{font-size:13px;color:var(--sub);margin-top:10px}
.key{background:var(--primary-soft);border-radius:8px;padding:16px 18px;margin-top:20px;display:grid;gap:6px}
.key b{color:#173E7A}
.warn{background:var(--red-soft);border-radius:8px;padding:14px 16px;margin-top:14px}
.tw{overflow-x:auto;margin-top:12px;border:1px solid var(--line);border-radius:8px}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
thead th{background:var(--bg2);font-weight:700;font-size:14px;white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right;white-space:nowrap}
.note{font-size:13px;color:var(--sub);margin-top:8px}
.src{font-size:13px;color:var(--sub);margin-top:28px;border-top:1px solid var(--line);padding-top:12px}
.src a{text-decoration:underline}
.dongs{display:grid;gap:10px;margin-top:12px;padding:0;list-style:none}
.dongs li{border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.dongs b{display:block;font-size:15px}
.dongs span{font-size:14px;color:var(--sub)}
.steps{counter-reset:s;list-style:none;padding:0 !important;gap:10px !important}
.steps li{counter-increment:s;background:var(--bg2);border-radius:8px;padding:14px 14px 14px 52px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:14px;top:14px;width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;font-size:14px;display:grid;place-items:center;line-height:1}
.faq{margin-top:12px;border-top:1px solid var(--text)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:14px 32px 14px 0;font-weight:500;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";color:var(--primary);font-weight:700;margin-right:10px}
.faq summary::after{content:"";position:absolute;right:6px;top:50%;width:8px;height:8px;border-right:2px solid var(--sub);border-bottom:2px solid var(--sub);transform:translateY(-70%) rotate(45deg)}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{background:var(--bg2);padding:12px 14px;margin:0 0 14px;border-radius:6px;font-size:15px;color:var(--sub)}
.cta{background:var(--hero);border-radius:10px;padding:22px 20px;margin-top:40px;display:grid;gap:10px;justify-items:start}
.cta h2{margin:0;font-size:20px}
.cta p{margin:0;color:#3A4352}
.rel{margin-top:36px}
.rel h2{font-size:18px;margin:0 0 10px}
.rel ul{list-style:none;padding:0;display:grid;gap:8px;margin:0}
@media (min-width:640px){.rel ul{grid-template-columns:1fr 1fr}}
.rel a{display:block;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-weight:500}
.rel a:hover{border-color:var(--primary);color:var(--primary)}
.rel a small{display:block;font-weight:400;font-size:13px;color:var(--sub)}

/* 바닥 */
footer{background:var(--foot);color:var(--foot-text);font-size:13px;padding-block:28px 32px;line-height:1.8}
footer b{color:var(--on-primary);font-size:15px;display:block;margin-bottom:6px}
footer i{font-style:normal}
footer .biz span{display:inline-block;margin-right:12px}
footer .todo{color:var(--foot-todo)}
footer .guide{margin-top:8px}
footer .guide a,footer .links a{color:var(--foot-text);text-decoration:underline;margin-right:10px}
footer .links{margin-top:6px}
footer .cp{margin-top:10px}
.dock{position:fixed;left:0;right:0;bottom:0;z-index:25;background:var(--bg);border-top:1px solid var(--line);display:flex;gap:8px;padding:8px max(12px,env(safe-area-inset-right,0px)) calc(8px + env(safe-area-inset-bottom,0px)) max(12px,env(safe-area-inset-left,0px))}
.dock .btn{min-height:48px;flex:1}
.dock .btn[hidden]{display:none}
@media (min-width:860px){.dock{display:none}body{padding-bottom:0}}