/* riselab.co.kr (2026-11-13). 앱과 같은 파란색(#3077e5)·펼친 책 로고 */
:root{--blue:#3077e5;--blue-soft:#eaf2fe;--ink:#1d2433;--sub:#5b6577;--line:#e6e9ef;--bg:#fafbfd;--card:#fff;--radius:18px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.top{position:sticky;top:0;z-index:5;background:rgba(250,251,253,.86);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid transparent}
header.top.scrolled{border-bottom-color:var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:9px;font-size:23px;font-weight:800;letter-spacing:-.8px;color:var(--ink)}.brand:hover{text-decoration:none}.brand b{font-weight:400}
.brand img{width:32px;height:32px}
nav.links{display:flex;gap:22px;font-size:15px}nav.links a{color:var(--sub)}nav.links a:hover{color:var(--ink);text-decoration:none}
.hero{padding:72px 0 40px;text-align:center}
.eyebrow{display:inline-block;padding:6px 13px;border-radius:99px;background:var(--blue-soft);color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.2px}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.18;letter-spacing:-1.6px;margin:20px 0 16px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero p.lead{font-size:clamp(16px,2.2vw,19px);color:var(--sub);max-width:640px;margin:0 auto 30px}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:14px;font-weight:700;font-size:16px}
.btn.dark{background:#111;color:#fff}.btn.dark:hover{text-decoration:none;background:#000}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn.ghost:hover{text-decoration:none;border-color:#cdd3de}
.btn small{display:block;font-size:11px;font-weight:500;opacity:.75;line-height:1.2}.btn span{line-height:1.25;text-align:left}
/* 앱 화면 그림(HTML로 그린 모형) */
.device{margin:54px auto 0;max-width:940px;background:#1c1f26;border-radius:34px;padding:14px;box-shadow:0 30px 80px rgba(30,50,90,.18)}
.screen{background:#fff;border-radius:22px;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;min-height:420px;text-align:left}
.bar{grid-column:1/-1;display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--line);font-size:12px;color:var(--sub)}
.bar i{width:9px;height:9px;border-radius:50%;background:#e2e6ee;display:inline-block}.bar .tab{margin-left:8px;padding:3px 10px;border-radius:7px;background:#f2f4f8;color:var(--ink);font-weight:600}
.pane{padding:22px;font-size:12px;line-height:1.6;position:relative}.pane+.pane{background:#e9ecf1;border-left:1px solid var(--line)}
.pdf h4{font-size:17px;margin:0 0 4px;letter-spacing:-.4px}.pdf .muted{color:#8a93a3;margin-bottom:14px}
.pdf p{margin:0 0 8px;color:#333}.hl{background:linear-gradient(transparent 45%,#ffe56a 45%)}
.ink{position:absolute;right:26px;top:118px;width:150px;height:60px}
.sheet{background:#fff;border-radius:4px;box-shadow:0 2px 10px rgba(20,30,50,.12);padding:20px 22px;aspect-ratio:210/297;max-height:370px;margin:0 auto}
.sheet h5{font-size:13px;margin:0 0 8px;padding-bottom:5px;border-bottom:2px solid var(--blue)}
.sheet h6{font-size:11px;margin:10px 0 4px;padding-left:6px;border-left:3px solid var(--blue)}
.sheet ul{margin:0;padding-left:15px}.sheet li{font-size:10.5px;margin:2px 0;color:#333}
.chip{display:inline-block;font-size:9px;padding:0 5px;border-radius:5px;background:#eef3fb;color:#3d6fb8;margin-left:3px}
.bubble{position:absolute;left:16px;right:16px;bottom:16px;background:#fff;border-radius:14px;padding:10px 12px;font-size:11px;box-shadow:0 4px 18px rgba(20,30,50,.14);display:flex;gap:9px;align-items:flex-start}
.bubble b{display:inline-grid;place-items:center;flex:none;width:22px;height:22px;border-radius:7px;background:var(--blue);color:#fff;font-size:11px}
section{padding:80px 0}section h2{font-size:clamp(26px,4vw,38px);letter-spacing:-1px;line-height:1.25;margin:0 0 12px;text-align:center}
section p.sec-lead{text-align:center;color:var(--sub);margin:0 auto 44px;max-width:600px}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card .ic{width:44px;height:44px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;margin-bottom:14px}
.card h3{margin:0 0 6px;font-size:20px;letter-spacing:-.4px}.card p{margin:0;color:var(--sub);font-size:15.5px}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
.step{padding:24px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:14px;margin-bottom:12px}
.step h3{margin:0 0 4px;font-size:18px}.step p{margin:0;color:var(--sub);font-size:15px}
.note{max-width:760px;margin:0 auto;background:var(--blue-soft);border-radius:var(--radius);padding:26px 28px;color:#24456f}
.note h3{margin:0 0 6px;font-size:18px;color:var(--ink)}.note p{margin:0}
footer{padding:44px 0 56px;color:var(--sub);font-size:13.5px;border-top:1px solid var(--line);background:#fff}
footer .row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer nav{display:flex;gap:18px;flex-wrap:wrap}footer nav a{color:var(--ink);font-weight:600}
footer .biz{margin-top:18px;line-height:1.85}footer .biz span+span::before{content:'·';margin:0 7px;color:#b7bfcc}
.todo{background:#fff4d6;color:#8a5a00;border-radius:5px;padding:0 5px}
/* 문서 쪽(약관·개인정보·지원) */
.doc{max-width:780px;margin:0 auto;padding:56px 20px 80px}
.doc h1{font-size:clamp(28px,4vw,36px);letter-spacing:-1px;margin:0 0 6px}.doc .meta{color:var(--sub);font-size:14px;margin-bottom:36px}
.doc h2{font-size:20px;margin:38px 0 10px;letter-spacing:-.3px}.doc h3{font-size:16.5px;margin:22px 0 6px}
.doc p,.doc li{color:#333a48;font-size:15.5px}.doc ul,.doc ol{padding-left:22px}
.doc table{width:100%;border-collapse:collapse;font-size:14.5px;margin:12px 0}.doc th,.doc td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}.doc th{background:#f4f6fa;font-weight:700}
.doc .box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:16px 0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:10px 0}.faq summary{cursor:pointer;font-weight:700}.faq details p{margin:10px 0 0}
.table-scroll{overflow-x:auto}
@media(max-width:820px){.screen{grid-template-columns:1fr}.pane+.pane{border-left:0;border-top:1px solid var(--line)}.ink{display:none}.grid,.steps{grid-template-columns:1fr}nav.links{gap:14px;font-size:14px}nav.links .hide-sm{display:none}.hero{padding-top:48px}section{padding:60px 0}.device{border-radius:24px;padding:9px}.screen{border-radius:16px}}
@media(prefers-reduced-motion:no-preference){.fade{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}.fade.in{opacity:1;transform:none}}