/* 공개 웹의 공통 탐색·소개·지원·정책 문서와 모바일 레이아웃을 제공합니다. Created by rundo. */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700&display=swap");
:root { color-scheme: light; --ink:#18191c; --muted:#696b73; --line:#dededb; --paper:#f4f4f0; --accent:#6187f0; --accent-text:#4666bc; --ease:cubic-bezier(.22,1,.36,1); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:28px; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:"Noto Sans KR",-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo",sans-serif; -webkit-font-smoothing:antialiased; }
[hidden] { display:none !important; }
a { color:inherit; text-underline-offset:4px; }
button,summary,a { -webkit-tap-highlight-color:transparent; touch-action:manipulation; }
a:focus-visible,summary:focus-visible { outline:3px solid var(--accent); outline-offset:5px; }
h1,h2,h3,p { margin:0; }
h1,h2,h3 { word-break:keep-all; overflow-wrap:anywhere; }
p { line-height:1.85; word-break:keep-all; overflow-wrap:anywhere; }
img { max-width:100%; height:auto; }
.wrap { width:min(1144px,calc(100% - 112px)); margin-inline:auto; }
.skip-link { position:fixed; top:8px; left:16px; z-index:10; padding:12px 20px; background:var(--ink); color:white; transform:translateY(-180%); }
.skip-link:focus { transform:none; }
.site-header { display:flex; justify-content:space-between; align-items:center; gap:20px; padding:26px 0; border-bottom:1px solid var(--line); }
.brand { display:flex; align-items:center; gap:10px; text-decoration:none; font:600 24px/1 Arial,sans-serif; letter-spacing:-.6px; }
.brand img { width:36px; height:36px; object-fit:contain; }
.site-nav { display:flex; align-items:center; gap:30px; font-size:12px; }
.site-nav a { display:flex; gap:16px; align-items:center; min-height:44px; text-decoration:none; }
.site-nav a[aria-current] { color:var(--accent-text); }
.eyebrow,.index { font:500 10px/1.6 Arial,sans-serif; color:var(--accent-text); letter-spacing:1.3px; }
.eyebrow { margin-bottom:22px; }
.hero { padding:100px 0 80px; }
.hero h1 { font-size:clamp(42px,4.6vw,64px); font-weight:500; line-height:1.25; letter-spacing:-2.8px; }
.hero h1 > span { color:var(--accent-text); }
.lead { margin-top:26px; color:var(--muted); font-size:16px; letter-spacing:-.4px; }
.actions { display:flex; align-items:center; flex-wrap:wrap; gap:24px; margin-top:34px; }
.button { display:inline-flex; align-items:center; justify-content:center; gap:28px; min-height:50px; padding:14px 21px; border:1px solid transparent; border-radius:4px; text-decoration:none; font-size:13px; font-weight:500; transition:transform 180ms var(--ease),background 180ms ease; }
.button:active { transform:scale(.98); }
.primary { background:#486ac4; color:white; }
.secondary { background:#fff; border-color:var(--line); }
.text-link { display:inline-flex; align-items:center; gap:14px; min-height:44px; font-size:13px; text-decoration:none; }
.micro { margin-top:18px; color:var(--muted); font-size:11px; }
.home-hero { display:grid; grid-template-columns:1fr 1.08fr; align-items:center; gap:54px; min-height:650px; }
.hero-copy,.hero-visual { min-width:0; }
.hero-visual { padding-top:10px; }
.done { color:var(--muted); }
.section { padding:80px 0; border-top:1px solid var(--line); }
.section h2,.closing h2 { font-size:clamp(27px,3vw,38px); line-height:1.4; font-weight:500; letter-spacing:-1.4px; }
.section-heading > p:not(.eyebrow) { color:var(--muted); font-size:14px; margin-top:16px; }
.feature-strip { display:grid; grid-template-columns:1fr 1.1fr; gap:80px; }
.feature-list article { display:flex; align-items:baseline; gap:28px; padding:24px 0; border-bottom:1px solid var(--line); }
.feature-list article:first-child { padding-top:0; }
.feature-list h3 { font-size:20px; font-weight:500; letter-spacing:-.6px; }
.feature-list p { color:var(--muted); font-size:13px; margin-top:9px; }
.site-footer { display:grid; grid-template-columns:1fr auto; gap:32px; padding:32px 0 30px; border-top:1px solid var(--line); }
.footer-brand { text-decoration:none; font:600 24px/1 Arial,sans-serif; letter-spacing:-.8px; }
.footer-brand span { display:block; margin-top:10px; font:11px/1.8 "Noto Sans KR",sans-serif; color:var(--muted); letter-spacing:0; }
.site-footer nav { display:flex; flex-wrap:wrap; align-content:flex-start; gap:10px 24px; font-size:11px; color:var(--muted); }
.site-footer nav a { display:flex; align-items:center; min-height:32px; text-decoration:none; }
.site-footer > p { grid-column:1/-1; font:10px/1.5 Arial,sans-serif; color:var(--muted); }
/* 앱 소개는 요약과 구성 예시, 상세 기능을 한 방향으로 읽도록 배치합니다. */
.intro-hero { text-align:center; padding-bottom:45px; }
.intro-hero h1 { font-size:clamp(44px,5.4vw,74px); }
.intro-hero .text-link { margin-top:23px; }
.inline-heading { display:flex; align-items:flex-end; justify-content:space-between; gap:40px; margin-bottom:40px; }
.inline-heading > p { max-width:410px; margin:0; }
.audience-section { text-align:center; }
.topic-tags { display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin-top:30px; }
.topic-tags span { border:1px solid var(--line); padding:9px 16px; border-radius:30px; font-size:12px; color:var(--muted); }
.closing { text-align:center; padding:65px 24px; margin-bottom:70px; background:#fff; border:1px solid #e4e4e0; border-radius:5px; }
.closing img { margin-bottom:20px; }
.closing p { margin:15px 0 26px; color:var(--muted); font-size:14px; }
/* 문의 채널과 기본 details를 사용해 스크립트 없이도 도움말에 접근합니다. */
.support-hero { padding-bottom:55px; }
.contact-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-bottom:80px; }
.contact-card { position:relative; min-width:0; padding:30px; background:white; border:1px solid #e4e4e0; border-radius:5px; text-decoration:none; transition:transform 200ms var(--ease),border-color 200ms ease; }
.contact-card h2 { margin:35px 0 10px; font-size:24px; font-weight:500; letter-spacing:-.8px; }
.contact-card p { font-size:12px; color:var(--muted); }
.contact-icon { position:absolute; right:26px; top:25px; font-size:22px; color:var(--accent-text); }
.contact-link { display:block; margin-top:35px; font-size:12px; color:var(--accent-text); }
.faq-section { display:grid; grid-template-columns:.8fr 1.2fr; gap:60px; }
.faq-list { border-top:1px solid var(--line); }
.faq-list details { border-bottom:1px solid var(--line); }
.faq-list summary { display:flex; align-items:center; justify-content:space-between; gap:20px; padding:24px 0; font-size:15px; cursor:pointer; list-style:none; word-break:keep-all; }
summary::-webkit-details-marker { display:none; }
.faq-list summary > span { color:var(--muted); font:300 22px/1 Arial,sans-serif; transition:transform 200ms ease; }
.faq-list details[open] summary > span { transform:rotate(45deg); }
.faq-list details > div { padding:0 32px 24px 0; font-size:13px; color:var(--muted); animation:enter 220ms var(--ease); }
.faq-list details p + p { margin-top:12px; }
.faq-list .text-link { margin-top:12px; color:var(--accent-text); }
.contact-note { padding:36px 40px; background:#e9eefb; border:1px solid #d9e1f6; border-radius:5px; margin-bottom:80px; }
.contact-note h2 { font-size:23px; font-weight:500; letter-spacing:-.6px; margin-top:14px; }
.contact-note ol { display:flex; flex-wrap:wrap; gap:22px 32px; padding:0; margin:26px 0 0; list-style:none; }
.contact-note li { display:flex; gap:10px; font-size:12px; color:#485570; }
.contact-note li span { font:11px/1.8 Arial,sans-serif; color:var(--accent-text); }
/* 정책 원문은 그대로 두고 넓은 화면의 목차와 모바일 접이식 목차만 보강합니다. */
.plain-doc-page { display:grid; grid-template-columns:220px minmax(0,1fr); gap:65px; align-items:start; padding-block:65px 90px; }
.plain-document { min-width:0; }
.plain-document-header { padding-bottom:36px; border-bottom:1px solid var(--line); margin-bottom:10px; }
.plain-kicker { color:var(--accent-text); font:500 10px/1.6 Arial,sans-serif; letter-spacing:1px; margin-bottom:18px; }
.plain-document h1 { font-size:clamp(30px,3.4vw,43px); font-weight:500; line-height:1.45; letter-spacing:-1.5px; margin-bottom:20px; }
.plain-document-header > p:not(.plain-kicker) { font-size:14px; color:var(--muted); }
.plain-document-header .plain-meta { font-size:11px !important; margin-top:24px; line-height:1.9; }
.plain-document > section { padding:29px 0; border-bottom:1px solid var(--line); scroll-margin-top:24px; }
.plain-document h2 { font-size:19px; line-height:1.65; font-weight:500; margin-bottom:15px; letter-spacing:-.5px; }
.plain-document section p,.plain-document li { color:#50535b; font-size:14px; line-height:1.95; word-break:normal; overflow-wrap:anywhere; }
.plain-document section p + p { margin-top:14px; }
.plain-document ul { padding-left:20px; margin:14px 0; }
.plain-document li + li { margin-top:9px; }
.plain-document a { color:var(--accent-text); }
.document-nav { position:sticky; top:26px; padding:20px; border:1px solid var(--line); border-radius:5px; background:#fff; max-height:calc(100svh - 52px); overflow:auto; }
.document-nav summary { list-style:none; cursor:pointer; font-size:12px; display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:24px; }
.document-nav summary span { color:var(--muted); }
.document-nav nav { display:grid; gap:3px; margin-top:15px; }
.document-nav nav a { display:block; padding:8px 0; font-size:11px; line-height:1.7; color:var(--muted); text-decoration:none; }
.document-nav nav a:hover { color:var(--accent-text); }
.document-nav .document-top { margin-top:10px; padding-top:14px; border-top:1px solid var(--line); color:var(--accent-text); }
.plain-doc-page:has(.document-nav[hidden]) { display:block; max-width:780px; }
/* 앱 번들의 실제 가이드 이미지를 원본 비율로 보여주고 확대 원본으로 연결합니다. */
.guide-pair { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); align-items:start; gap:18px; }
.guide-pair .guide-figure:nth-child(2) { margin-top:54px; }
.guide-figure { min-width:0; margin:0; }
.guide-figure > a { display:block; border-radius:12px; transition:transform 200ms var(--ease); }
.guide-figure img { display:block; width:100%; height:auto; aspect-ratio:575/744; object-fit:contain; }
.guide-figure figcaption { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-top:12px; padding:0 6px; font-size:11px; color:var(--muted); }
.guide-figure figcaption a { color:var(--accent-text); text-decoration:none; display:inline-flex; align-items:center; min-height:44px; gap:8px; }
.guide-jump-links { display:flex; flex-wrap:wrap; justify-content:center; gap:10px; padding:0 0 55px; }
.guide-jump-links a { display:flex; align-items:center; min-height:44px; padding:10px 17px; border:1px solid var(--line); border-radius:4px; background:#fff; font-size:12px; text-decoration:none; }
.guide-gallery { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:20px; }
.guide-card { min-width:0; padding:32px; border:1px solid #e4e4e0; background:#fff; border-radius:6px; scroll-margin-top:28px; }
.guide-copy h3 { margin:14px 0 12px; font-size:25px; font-weight:500; letter-spacing:-.7px; }
.guide-copy p { font-size:14px; color:var(--muted); }
.guide-card .guide-figure { margin-top:28px; }
.guide-card:last-child { grid-column:1/-1; display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); align-items:center; gap:52px; }
.guide-card:last-child .guide-figure { margin:0; }
@media (hover:hover) {
  .guide-figure > a:hover { transform:translateY(-3px); }
  .guide-jump-links a:hover { color:var(--accent-text); border-color:#a5b8eb; }
}
@media (max-width:760px) {
  .guide-pair { max-width:620px; margin-inline:auto; gap:14px; }
  .guide-pair .guide-figure:nth-child(2) { margin-top:28px; }
  .guide-gallery { grid-template-columns:minmax(0,1fr); gap:18px; }
  .guide-card { padding:24px 20px; }
  .guide-card:last-child { display:block; }
  .guide-card:last-child .guide-figure { margin-top:28px; }
  .guide-card .guide-figure { max-width:480px; margin-inline:auto; }
  .guide-copy h3 { font-size:23px; }
  .guide-copy p { font-size:13px; }
  .guide-jump-links { justify-content:flex-start; gap:8px; padding-bottom:40px; }
  .guide-jump-links a { padding-inline:12px; font-size:11px; }
}
@media (max-width:520px) {
  .guide-pair { grid-template-columns:minmax(0,1fr); gap:24px; width:100%; max-width:380px; }
  .guide-pair .guide-figure:nth-child(2) { margin-top:0; }
}

/* 큰 이동이나 고정 스크롤 없이 짧은 진입 효과만 사용합니다. */
@keyframes enter { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }
.has-entered { animation:enter 520ms var(--ease) both; }
@media (hover:hover) {
  .primary:hover { background:#3957a9; }
  .secondary:hover { background:#f7f8fc; }
  .text-link:hover,.site-footer a:hover,.site-nav a:hover { color:var(--accent-text); }
  .contact-card:hover { transform:translateY(-4px); border-color:#a5b8eb; }
}
@media (max-width:1100px) {
  .wrap { width:calc(100% - 64px); }
  .home-hero { gap:32px; }
  .hero h1 { font-size:46px; }
  .hero .actions { gap:12px; }
  .feature-strip { gap:45px; }
  .contact-card { padding:25px 20px; }
  .plain-doc-page { grid-template-columns:190px minmax(0,1fr); gap:38px; }
}
@media (max-width:760px) {
  .wrap { width:calc(100% - 40px); }
  .site-header { padding:18px 0; gap:16px; flex-wrap:wrap; }
  .brand { font-size:22px; gap:7px; }
  .brand img { width:30px; height:30px; }
  .site-nav { gap:18px; font-size:11px; }
  .hero { padding:62px 0 44px; }
  .hero h1 { font-size:clamp(36px,7.8vw,54px); letter-spacing:-1.8px; }
  .eyebrow { margin-bottom:18px; font-size:9px; }
  .lead { font-size:14px; margin-top:22px; }
  .home-hero { grid-template-columns:1fr; gap:35px; min-height:0; }
  .home-hero .actions { gap:12px 20px; margin-top:25px; }
  .hero-visual { padding:0 4px 10px; }
  .section { padding:52px 0; }
  .section h2,.closing h2 { font-size:29px; }
  .feature-strip,.faq-section { grid-template-columns:1fr; gap:32px; }
  .feature-list article { padding:22px 0; gap:22px; }
  .feature-list h3 { font-size:18px; }
  .site-footer { grid-template-columns:1fr; gap:22px; padding-top:28px; }
  .site-footer nav { gap:4px 20px; }
  .site-footer nav a { min-height:44px; }
  .inline-heading { display:block; margin-bottom:28px; }
  .inline-heading > p { margin-top:22px; font-size:13px; }
  .closing { padding:42px 20px; margin-bottom:50px; }
  .contact-grid { grid-template-columns:1fr; gap:12px; margin-bottom:50px; }
  .contact-card { padding:25px; }
  .contact-card h2 { margin-top:20px; font-size:22px; }
  .contact-link { margin-top:22px; }
  .faq-list summary { font-size:14px; gap:16px; padding:22px 0; }
  .faq-list details > div { padding-right:12px; }
  .contact-note { padding:27px 24px; margin-bottom:50px; }
  .contact-note h2 { font-size:21px; }
  .contact-note ol { display:grid; gap:16px; }
  .plain-doc-page { display:flex; flex-direction:column; gap:32px; padding-block:28px 55px; }
  .document-nav { position:static; width:100%; max-height:none; padding:15px 20px; }
  .document-nav summary { min-height:30px; }
  .document-nav nav a { min-height:44px; display:flex; align-items:center; font-size:12px; }
  .plain-document h1 { font-size:30px; }
  .plain-document h2 { font-size:18px; }
  .plain-document section p,.plain-document li { font-size:14px; }
}
@media (max-width:390px) {
  .site-header { gap:12px; }
  .site-nav { gap:12px; }
}
@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation:none !important; transition:none !important; }
}
@media print {
  body { background:white; }
  .site-header,.site-footer,.document-nav,.skip-link { display:none !important; }
  .plain-doc-page { display:block; width:100%; max-width:none; padding:0; }
  .plain-document section { break-inside:avoid; }
  .plain-document p,.plain-document li { color:black !important; }
}