:root{
  --bg:#FFFFFF;--panel:#F7F8FA;--card:#FFFFFF;--line:#E8EAEE;--line2:#D5D8DF;--ink:#191F28;--ink2:#4E5968;--mute:#8B95A1;--btn:#191F28;--btn-ink:#FFFFFF;--dark-bg:#191F28;--red-ink:#B3261E;--green-ink:#0B7A3B;--shadow:rgba(0,0,0,.10);
  --blue:#3182F6;--blue-soft:#EAF2FF;--blue-ink:#1B64DA;--red:#F04452;--red-soft:#FEECEE;--green:#12A150;--green-soft:#E6F6EC;--yellow-soft:#FFF8E1;--yellow-ink:#8A5A00;
  --sans:"Pretendard Variable",Pretendard,"Noto Sans KR",-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;--mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
}

:root[data-theme="dark"]{
  --bg:#0F1218;--panel:#171B23;--card:#1E232D;--line:#2A303B;--line2:#3A4250;--ink:#F1F3F7;--ink2:#C2C8D2;--mute:#7E8798;--btn:#F1F3F7;--btn-ink:#0F1218;--dark-bg:#262C38;
  --blue:#4C8DFF;--blue-soft:#1A2B4A;--blue-ink:#8FC1FF;--red-soft:#3A1A1E;--red-ink:#FF8A80;--green-soft:#10301F;--green-ink:#6EE7A0;--green:#4ADE80;--yellow-soft:#2E2610;--yellow-ink:#F2C766;--shadow:rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.6;padding-inline:16px;padding-block:0 60px}
a{color:inherit;text-decoration:none}
button{font:inherit}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{max-width:1120px;margin:0 auto}
.narrow{max-width:720px;margin:0 auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* nav */
.nav{display:flex;align-items:center;gap:28px;padding-block:18px}
.nav .logo{font-size:19px;font-weight:900;letter-spacing:-.02em}
.nav ul{display:flex;gap:20px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--mute);font-weight:500}
.nav ul a.on{color:var(--ink);font-weight:700}
.nav .tg{margin-left:auto;background:var(--panel);padding:8px 14px;border-radius:10px;font-size:13.5px;font-weight:700;color:var(--ink2);white-space:nowrap}

.mode{margin-left:auto;width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink2);cursor:pointer;font-size:15px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.nav .tg + .mode{margin-left:0}
.acts a.t,.card .go a.t{background:var(--blue-soft);color:var(--blue-ink);border-color:var(--blue-soft)}
.ev .th{aspect-ratio:16/9;max-width:100%;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:12px;color:#fff;font-weight:800;font-size:15px;line-height:1.3;margin-bottom:6px;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.ev .th .bl{width:56px;height:56px;border-radius:14px;background:#fff;padding:8px;box-shadow:0 4px 14px rgba(0,0,0,.25)}.ev .th .bl img{width:100%;height:100%;object-fit:contain;display:block;border-radius:8px}
.ev .th.bg{background:linear-gradient(135deg,#0E4A52,#00B4C5)}.ev .th.okx{background:linear-gradient(135deg,#0B0F19,#3A4250)}.ev .th.bx{background:linear-gradient(135deg,#1E3A8A,#2A54F5)}
.ev .th.img{padding:0;display:block}
.ev .th img{width:100%;height:100%;object-fit:cover;display:block}
/* hero (home) */
.hero{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding-block:30px 22px;flex-wrap:wrap}
h1{font-size:34px;font-weight:900;letter-spacing:-.03em;line-height:1.2;margin:0 0 8px;text-wrap:balance}
.lead{color:var(--ink2);margin:0;font-size:15.5px;max-width:52ch}
.hero .note{font-size:13px;color:var(--mute);background:var(--panel);padding:8px 14px;border-radius:10px}

/* exchange table (pc) */
.board{background:var(--panel);border-radius:20px;padding:12px}
.board table{width:100%;border-collapse:separate;border-spacing:0}
.board th{text-align:left;font-weight:500;color:var(--mute);font-size:12.5px;padding:10px 16px}
.board td{background:var(--card);padding:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);vertical-align:middle}
.board td:first-child{border-left:1px solid var(--line);border-radius:14px 0 0 14px}
.board td:last-child{border-right:1px solid var(--line);border-radius:0 14px 14px 0}
.board tr.sp td{padding:0;border:0;height:8px;background:transparent}
.ex{display:flex;align-items:center;gap:12px;font-weight:700;font-size:16px}
.lg{width:40px;height:40px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-family:var(--mono);font-size:11px;font-weight:700;flex-shrink:0}
.lg.bg{background:#00F0FF}.lg.okx{background:#000}.lg.bx{background:#fff;border:1px solid var(--line)}
.lg img{width:100%;height:100%;object-fit:cover;border-radius:inherit;display:block}.lg.bx img{width:70%;height:70%;object-fit:contain}
.badge{font-size:10.5px;font-weight:700;padding:2px 7px;border-radius:6px;background:var(--blue-soft);color:var(--blue-ink);white-space:nowrap}
.badge.easy{background:var(--green-soft);color:var(--green)}
.pb{color:var(--blue);font-weight:900;font-size:20px;letter-spacing:-.02em}
.pb small{display:block;font-size:11px;color:var(--mute);font-weight:500;letter-spacing:0}
.feat{font-size:13.5px;color:var(--ink2)}
.how{font-size:13px;color:var(--ink2)}
.how b{display:block;color:var(--ink);font-weight:700}
.code{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:13px;background:var(--panel);border:1px dashed var(--line2);border-radius:8px;padding:6px 10px;cursor:pointer;white-space:nowrap;color:var(--ink)}
.code i{font-style:normal;color:var(--mute);font-size:11.5px;font-family:var(--sans)}
.acts{display:flex;gap:6px;justify-content:flex-end}
.acts a{padding:9px 14px;border-radius:9px;font-size:13.5px;font-weight:700;white-space:nowrap;background:var(--panel);color:var(--ink2)}
.acts a.p{background:var(--blue);color:#fff}

/* exchange cards (mobile) */
.cards{display:none;flex-direction:column;gap:12px}
.card{background:var(--panel);border-radius:16px;padding:18px;display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center}
.card .lg{width:44px;height:44px;border-radius:12px}
.card .nm{font-size:17px;font-weight:700;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.card .sub{font-size:13px;color:var(--mute)}
.card .pbm{text-align:right;color:var(--blue);font-weight:900;font-size:22px;line-height:1.1}
.card .pbm small{display:block;font-size:11px;color:var(--mute);font-weight:500}
.card .go{grid-column:1/4;display:flex;gap:8px;align-items:center;margin-top:6px;flex-wrap:wrap}
.card .go a{padding:10px 14px;border-radius:10px;font-size:14px;font-weight:700;background:var(--card);border:1px solid var(--line);color:var(--ink2)}
.card .go a.p{background:var(--blue);color:#fff;border-color:var(--blue)}
.card .go .code{margin-left:auto;background:var(--card)}

/* after-signup + icons */
.two{display:grid;grid-template-columns:1fr 340px;gap:16px;margin-top:16px}.two.one{grid-template-columns:1fr}
.after{background:var(--dark-bg);color:#fff;border-radius:18px;padding:22px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.after small{display:block;color:#AEB5C2;font-size:12.5px;margin-bottom:2px}
.after b{font-size:16px}
.after a{background:#fff;color:#191F28;padding:10px 16px;border-radius:10px;font-weight:700;font-size:14px;white-space:nowrap}
.icons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.icons a{background:var(--panel);border-radius:14px;padding:14px 6px;text-align:center;font-size:12.5px;font-weight:600;color:var(--ink2);display:flex;flex-direction:column;justify-content:center}
.icons a i{display:block;width:28px;height:28px;border-radius:8px;margin:0 auto 6px;font-style:normal;color:#fff;font-size:14px;line-height:28px}

/* events */
.evh{display:flex;align-items:center;gap:16px;margin:44px 0 14px;flex-wrap:wrap}
h2{font-size:21px;font-weight:900;letter-spacing:-.02em;margin:0}
.pills{display:flex;gap:6px;flex-wrap:wrap}
.pills button{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink2);cursor:pointer}
.pills button.on{background:var(--btn);color:var(--btn-ink);border-color:var(--btn)}
.evs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ev{background:var(--panel);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:6px}
.ev .tag{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--mute);font-weight:600}
.ev .tag i{width:18px;height:18px;border-radius:5px;display:inline-block}
.ev .tag i.bg{background:#00B4C5}.ev .tag i.okx{background:#000}.ev .tag i.bx{background:#2A54F5}
.ev h3{margin:2px 0 0;font-size:16px;font-weight:700;letter-spacing:-.01em}
.ev p{margin:0;font-size:13.5px;color:var(--ink2)}
.ev ul{margin:4px 0 0;padding-left:16px;font-size:13px;color:var(--ink2)}
.ev .meta{font-size:12px;color:var(--mute);margin-top:auto;padding-top:8px}
.ev .go{display:inline-block;margin-top:8px;font-size:13.5px;font-weight:700;color:var(--blue)}
.empty{background:var(--panel);border-radius:18px;padding:40px 20px;text-align:center;color:var(--mute);font-size:14px}
.empty b{display:block;color:var(--ink2);font-size:15px;margin-bottom:4px}

/* guide */
.ghero{background:var(--dark-bg);color:#fff;border-radius:20px;padding:36px 24px 32px;text-align:center;margin-top:8px}
.ghero .lg{width:56px;height:56px;border-radius:14px;font-size:14px;margin:0 auto 12px}
.ghero .gb{display:inline-block;background:#2A3240;color:#8FC1FF;font-size:11px;font-weight:700;letter-spacing:.08em;padding:4px 12px;border-radius:999px}
.ghero h1{font-size:clamp(26px,4.5vw,34px);margin:12px 0 6px;color:#fff}
.ghero p{margin:0;color:#B7BFCC;font-size:14px}
.codebox{display:inline-flex;align-items:center;gap:8px;margin-top:20px;border:2px dashed #3B4557;border-radius:12px;padding:6px 6px 6px 16px;font-family:var(--mono);font-weight:600;font-size:15px;letter-spacing:.06em}
.codebox button{background:#fff;color:#191F28;border:0;border-radius:8px;padding:8px 14px;font-family:var(--sans);font-weight:700;font-size:13px;cursor:pointer}
.extabs{display:flex;gap:8px;margin:18px 0;flex-wrap:wrap}
.extabs a{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:7px 14px 7px 8px;font-size:13.5px;font-weight:600;color:var(--ink2)}
.extabs a i{width:22px;height:22px;border-radius:6px;display:inline-block}
.extabs a.on{background:var(--btn);color:var(--btn-ink);border-color:var(--btn)}
.sec{background:var(--panel);border-radius:16px;padding:20px 22px;margin-top:14px}
.eyebrow{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.06em;margin:0 0 4px}
.sec h2{font-size:20px}
.sec .hd{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.sec .hd .pill{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px;color:var(--ink2);white-space:nowrap}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.kv div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;color:var(--ink2)}
.kv div b{display:block;color:var(--ink);font-size:15px;margin-top:2px}
.tabs{display:flex;gap:4px;background:var(--panel);border-radius:12px;padding:4px;margin-top:24px}
.tabs button{flex:1;text-align:center;padding:11px 6px;border-radius:9px;font-size:14.5px;color:var(--mute);font-weight:600;border:0;background:transparent;cursor:pointer}
.tabs button.on{background:var(--card);color:var(--ink);font-weight:700;box-shadow:0 1px 2px var(--shadow)}
.tabs button small{display:block;font-size:11px;font-weight:400}
.pane[hidden]{display:none}
.pane h2{margin:24px 0 4px}
.pane .sub{color:var(--mute);margin:0 0 14px;font-size:13.5px}
.steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;display:grid;grid-template-columns:32px 1fr;gap:14px;align-items:start}
.steps .n{width:32px;height:32px;border-radius:50%;background:var(--blue-soft);color:var(--blue-ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}
.steps h3{margin:2px 0 4px;font-size:15.5px;font-weight:700}
.steps p{margin:0;color:var(--ink2);font-size:14px}
.steps img{display:block;max-width:100%;width:260px;border-radius:10px;border:1px solid var(--line);background:#000;margin-top:12px}
.warn,.tip,.ok{margin-top:10px;padding:9px 12px;border-radius:8px;font-size:13.5px}
.warn{background:var(--red-soft);color:var(--red-ink);font-weight:700}
.tip{background:var(--blue-soft);color:var(--blue-ink)}
.ok{background:var(--green-soft);color:var(--green-ink);font-weight:700}
.kbd{font-family:var(--mono);background:var(--panel);border:1px solid var(--line2);border-radius:4px;padding:0 5px;font-size:13.5px}
.branch{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-top:12px}
.branch h3{margin:0 0 4px;font-size:16px}
.branch p{margin:0;color:var(--ink2);font-size:14px}
.notice{margin-top:20px;background:var(--yellow-soft);color:var(--yellow-ink);border-radius:12px;padding:14px 18px;font-size:13.5px}
.cta{margin-top:20px;background:var(--blue);color:#fff;border-radius:18px;padding:24px 26px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.cta h2{margin:0 0 4px;font-size:21px;color:#fff}
.cta p{margin:0;font-size:13.5px;opacity:.92}
.cta .bs{display:flex;gap:8px;flex-wrap:wrap}
.cta .bs a{border:2px solid rgba(255,255,255,.7);border-radius:999px;padding:10px 20px;font-weight:700;font-size:14px}
.cta .bs a.w{background:#fff;color:#1B64DA;border-color:#fff}

.cases{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0 16px}
.case{text-align:left;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:2px;cursor:pointer;color:var(--ink)}
.case.on{border-color:var(--blue)}
.case .ck{font-size:11.5px;font-weight:700;color:var(--blue);letter-spacing:.04em}
.case b{font-size:16px}
.case small{color:var(--mute);font-size:12.5px}
.case .pick{margin-top:8px;font-size:12px;font-weight:700;color:var(--ink2);background:var(--panel);padding:3px 8px;border-radius:6px;width:max-content}
.case.on .pick{background:var(--blue-soft);color:var(--blue-ink)}
.cpane[hidden]{display:none}
@media (max-width:520px){.cases{grid-template-columns:1fr}}
.help{position:fixed;right:16px;bottom:16px;z-index:9;background:var(--dark-bg);color:#fff;border-radius:999px;padding:11px 16px;font-size:13.5px;font-weight:600;box-shadow:0 8px 24px var(--shadow);display:flex;align-items:center;gap:6px}
.help b{color:#8FC1FF}
.stuck{margin-top:14px;background:var(--panel);border:1px dashed var(--line2);border-radius:14px;padding:16px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.stuck b{display:block;font-size:15px}.stuck span{font-size:13px;color:var(--ink2)}
.stuck a{background:#2AABEE;color:#fff;padding:10px 16px;border-radius:10px;font-weight:700;font-size:14px;white-space:nowrap}
/* FAQ */
.faq{margin-top:34px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--mute)}
.faq details[open] summary::after{content:"−"}
.faq p{margin:8px 0 0;color:var(--ink2);font-size:14px}

/* transfer hub */
.rhero{text-align:center;padding-block:36px 20px}
.rhero .badge{font-size:12px;padding:5px 14px;border-radius:999px}
.rhero h1{margin:14px 0 10px}
.rhero p{margin:0 auto;color:var(--ink2);max-width:46ch}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.rgrid a{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 20px;display:flex;flex-direction:column;gap:6px;transition:border-color .15s}
.rgrid a:hover{border-color:var(--blue)}
.rgrid .lg{width:44px;height:44px;margin-bottom:6px}
.rgrid b{font-size:16px}
.rgrid small{color:var(--mute);font-size:12.5px}
.rgrid .st{margin-top:8px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px;width:max-content}
.st.ok{background:var(--green-soft);color:var(--green)}.st.mid{background:var(--blue-soft);color:var(--blue-ink)}.st.hard{background:var(--yellow-soft);color:var(--yellow-ink)}
.rgrid .more{margin-top:auto;padding-top:10px;color:var(--blue);font-weight:700;font-size:13.5px}

/* contact */
.bigbtn{display:flex;align-items:center;justify-content:center;gap:10px;background:#2AABEE;color:#fff;border-radius:16px;padding:20px;font-size:17px;font-weight:800;margin-top:18px}
.bigbtn small{font-weight:500;opacity:.9;font-size:13px}

/* dock (mobile) */
.dock{display:none;position:fixed;left:16px;right:16px;bottom:16px;z-index:10}
.dock .in{display:flex;gap:8px}
.dock .c{flex:1;background:var(--card);border:1px solid var(--line2);border-radius:14px;padding:12px 14px;display:flex;align-items:center;gap:8px;font-family:var(--mono);font-weight:600;box-shadow:0 6px 24px var(--shadow);min-width:0}
.dock .c small{font-family:var(--sans);color:var(--mute);font-size:12px;font-weight:500}
.dock .c button{margin-left:auto;border:0;background:var(--panel);border-radius:8px;padding:6px 10px;font-family:var(--sans);font-size:12px;font-weight:700;cursor:pointer}
.dock .p{background:var(--blue);color:#fff;border-radius:14px;padding:12px 18px;font-weight:700;display:flex;align-items:center;white-space:nowrap;box-shadow:0 6px 24px rgba(49,130,246,.35)}

.foot{margin-top:48px;border-top:1px solid var(--line);padding-top:16px;font-size:12px;color:var(--mute);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.foot a{color:var(--ink2);font-weight:600}

@media (max-width:860px){
  .board{display:none}.cards{display:flex}
  .two{grid-template-columns:1fr}
  .nav{gap:14px}.nav ul{gap:12px;font-size:13px}.nav .tg{display:none}
  h1{font-size:28px}
  .evs{grid-template-columns:1fr}
  .rgrid{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
  .dock{display:block}
  body.has-dock{padding-bottom:110px}
  body.has-dock .help{bottom:88px}
  .help{padding:9px 13px;font-size:12.5px}
}
@media (max-width:420px){.card .go .code i{display:none}.dock .c small{display:none}}
@media (prefers-reduced-motion:reduce){.rgrid a{transition:none}}