:root{
  --bg:#f6f8fd; --bg-soft:#eef2fb; --card:#ffffff; --line:rgba(15,23,60,.10);
  --ink:#0c1330; --ink-2:#48507a; --ink-3:#7a8199;
  --navy:#0b1233; --navy-2:#111a44;
  --blue:#2f52ff; --blue-2:#5b78ff; --cyan:#12c7e0; --gold:#e6b23e; --red:#e2453a;
  --glow:radial-gradient(900px 500px at 20% -10%, rgba(47,82,255,.18), transparent 60%),
         radial-gradient(700px 500px at 100% 0%, rgba(18,199,224,.14), transparent 55%);
  --shadow:0 1px 2px rgba(12,19,48,.05), 0 12px 30px -12px rgba(12,19,48,.14);
  --maxw:1140px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#070b1c; --bg-soft:#0b1024; --card:#0f1631; --line:rgba(255,255,255,.09);
    --ink:#eef1ff; --ink-2:#aab2d6; --ink-3:#7b83a8;
    --glow:radial-gradient(900px 520px at 18% -12%, rgba(47,82,255,.30), transparent 60%),
           radial-gradient(760px 520px at 102% -4%, rgba(18,199,224,.20), transparent 55%);
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 18px 46px -16px rgba(0,0,0,.7);
  }
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Pretendard Variable",Pretendard,"Noto Sans SC",-apple-system,system-ui,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{padding:96px 0}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue);display:inline-flex;gap:8px;align-items:center}
@media (prefers-color-scheme: dark){.eyebrow{color:var(--blue-2)}}
.title{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.18;margin:14px 0 14px}
.lead{color:var(--ink-2);font-size:clamp(15px,1.6vw,18px);max-width:640px}
.btn{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;
  font-weight:700;font-size:15px;transition:.18s;border:1px solid transparent;cursor:pointer}
.btn.primary{background:linear-gradient(120deg,var(--blue),var(--blue-2));color:#fff;
  box-shadow:0 10px 26px -10px rgba(47,82,255,.7)}
.btn.primary:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--blue);color:var(--blue)}

/* ===== NAV ===== */
header.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(160%) blur(14px);
  background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:18px;height:62px}
.brand{display:inline-flex;flex-direction:column;gap:4px;line-height:1}
.brand .wm{font-size:23px;font-weight:800;letter-spacing:-.035em;color:var(--ink)}
.brand .wm .ai{background:linear-gradient(105deg,var(--blue),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.brand .sub{font-size:9.5px;font-weight:600;letter-spacing:.185em;text-transform:uppercase;
  color:var(--ink-3);white-space:nowrap}
@media(max-width:420px){
  .brand .wm{font-size:20px}
  .brand .sub{font-size:8px;letter-spacing:.1em}
}
html[lang="zh-CN"] .brand .sub{font-size:10.5px;letter-spacing:.09em}
footer .brand{margin-bottom:14px}
footer .brand .wm{color:#fff}
footer .brand .sub{color:#8790bb}
.menu{display:flex;gap:4px;margin-left:auto}
.menu a{padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--ink-2)}
.menu a:hover{color:var(--ink);background:var(--bg-soft)}
.nav-cta{display:flex;align-items:center;gap:10px}
.langsel{display:flex;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:3px}
.langsel button{border:0;background:transparent;color:var(--ink-3);font-weight:700;font-size:12.5px;
  padding:5px 10px;border-radius:999px;cursor:pointer;white-space:nowrap}
.langsel button.on{background:var(--card);color:var(--ink);box-shadow:var(--shadow)}
.navbtn{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);
  border-radius:10px;width:42px;height:42px;color:var(--ink);font-size:20px;cursor:pointer}
@media(max-width:900px){
  .menu{display:none} .nav-cta .btn{display:none} .navbtn{display:block;flex:none}
  .langsel{margin-left:auto} .nav-in{gap:10px} .brand{flex:none}
}
@media(max-width:420px){.langsel button{padding:5px 7px;font-size:11.5px}}
/* drawer */
.drawer{position:fixed;inset:0;z-index:60;background:color-mix(in srgb,var(--navy) 60%,transparent);
  backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:.2s}
.drawer.open{opacity:1;pointer-events:auto}
.drawer .panel{position:absolute;right:0;top:0;height:100%;width:min(82vw,340px);background:var(--card);
  border-left:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:.25s}
.drawer.open .panel{transform:none}
.drawer a{padding:13px 12px;border-radius:10px;font-weight:600;color:var(--ink)}
.drawer a:hover{background:var(--bg-soft)}

/* ===== HERO ===== */
.hero{position:relative;padding:78px 0 60px;background:var(--glow)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:26px}}
.flag-chip{display:inline-flex;gap:8px;align-items:center;padding:7px 13px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);font-size:12.5px;font-weight:700;color:var(--ink-2)}
.flag-chip b{color:var(--blue)}
h1.hero-h{font-size:clamp(32px,5.4vw,56px);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin:18px 0}
h1.hero-h .grad{background:linear-gradient(100deg,var(--blue),var(--cyan) 70%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{margin-bottom:26px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
/* connect visual */
.visual{position:relative;aspect-ratio:1/.92;border-radius:22px;overflow:hidden;
  background:linear-gradient(160deg,var(--navy),var(--navy-2));border:1px solid var(--line);box-shadow:var(--shadow)}
.visual svg{position:absolute;inset:0;width:100%;height:100%}
.node{position:absolute;transform:translate(-50%,-50%);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);color:#dfe6ff;font-size:11.5px;font-weight:700;
  padding:6px 11px;border-radius:999px;backdrop-filter:blur(6px);white-space:nowrap}
.node.k{border-color:rgba(226,69,58,.5)} .node.c{border-color:rgba(230,178,62,.55)}
.node.hub{background:linear-gradient(120deg,var(--blue),var(--cyan));border:0;color:#fff;
  font-size:13px;padding:9px 15px;box-shadow:0 10px 30px -8px rgba(18,199,224,.8)}

/* ===== SECTION HEAD ===== */
.shead{max-width:720px;margin-bottom:40px}
.alt{background:var(--bg-soft)}

/* ===== TOUR ===== */
.stages{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:16px}
@media(max-width:560px){.stages{grid-template-columns:1fr}}
.stage{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stage:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--blue),var(--cyan))}
.stage .step{font-size:12px;font-weight:800;color:var(--blue);letter-spacing:.1em}
.stage h3{font-size:20px;font-weight:800;margin:8px 0 4px}
.stage h3.hubcity{margin-top:0;font-size:17.5px;letter-spacing:-.01em}
.stage .city{color:var(--ink-3);font-size:13px}
.stage ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:8px}
.stage li{display:flex;gap:9px;align-items:center;font-size:14.5px;color:var(--ink-2)}
.stage li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}
.stage li.more{color:var(--ink-3);font-weight:600;margin-top:2px}
.stage li.more:before{content:"+";width:auto;height:auto;background:none;border-radius:0;color:var(--gold);font-weight:800;font-size:14px}
.netcap{text-align:center;font-size:13px;font-weight:700;color:var(--ink-2);margin-top:40px}
.logos{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;justify-content:center}
.logo-ph{padding:10px 18px;border:1px dashed var(--line);border-radius:12px;color:var(--ink-3);
  font-weight:700;font-size:14px;background:var(--card)}
.logo-ph.more{border-style:solid;border-color:color-mix(in srgb,var(--gold) 55%,var(--line));color:var(--gold)}

/* ===== AXES CARDS ===== */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.cards.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:820px){.cards.three{grid-template-columns:1fr}}
@media(max-width:820px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow);
  transition:.2s;position:relative}
.card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--blue) 40%,var(--line))}
.card .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:22px;
  background:linear-gradient(135deg,rgba(47,82,255,.14),rgba(18,199,224,.14));margin-bottom:14px}
.card h3{font-size:19px;font-weight:800;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:14.5px}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.card .tags span{font-size:11.5px;font-weight:700;color:var(--ink-3);background:var(--bg-soft);
  border:1px solid var(--line);padding:4px 9px;border-radius:999px}

/* ===== CLUB ===== */
.club{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
@media(max-width:820px){.club{grid-template-columns:1fr}}
.tier{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);margin-bottom:14px}
.tier .badge{font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px;display:inline-block}
.tier.free .badge{background:rgba(18,199,224,.14);color:var(--cyan)}
.tier.pro .badge{background:linear-gradient(120deg,var(--blue),var(--blue-2));color:#fff}
.tier h4{font-size:18px;font-weight:800;margin:10px 0 6px}
.tier ul{list-style:none;display:flex;flex-direction:column;gap:7px;margin-top:8px}
.tier li{font-size:14px;color:var(--ink-2);display:flex;gap:8px}
.tier li:before{content:"✓";color:var(--blue);font-weight:800}

/* ===== ABOUT / ORG ===== */
.orgs{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.org{padding:12px 18px;border:1px solid var(--line);border-radius:12px;background:var(--card);
  font-weight:700;font-size:14.5px;color:var(--ink-2)}
.mou{background:linear-gradient(150deg,var(--navy),var(--navy-2));border:1px solid var(--line);
  border-radius:20px;padding:34px;color:#e7ecff;margin-top:26px;position:relative;overflow:hidden}
.mou:after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,199,224,.35),transparent 65%)}
.mou h3{font-size:22px;font-weight:800;margin-bottom:8px}
.mou p{color:#aeb8e6;max-width:560px}

/* ===== CONTACT ===== */
.form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow);
  max-width:720px;margin:0 auto}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.frow{grid-template-columns:1fr}}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:11px;padding:12px 14px;color:var(--ink);font-size:14.5px;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid color-mix(in srgb,var(--blue) 50%,transparent);border-color:var(--blue)}
.field textarea{min-height:110px;resize:vertical}
.form .note{font-size:12.5px;color:var(--ink-3);margin-top:6px}

/* ===== FOOTER ===== */
footer{background:var(--navy);color:#c7d0f2;padding:56px 0 32px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
footer h5{font-size:13px;font-weight:800;letter-spacing:.06em;color:#fff;margin-bottom:12px;text-transform:uppercase}
footer a{display:block;color:#9aa6d6;font-size:14px;padding:4px 0}
footer a:hover{color:#fff}
.foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#8790bb}
.ph-badge{display:inline-block;font-size:10.5px;font-weight:700;color:var(--gold);
  border:1px solid rgba(230,178,62,.4);border-radius:6px;padding:1px 6px;margin-left:6px;vertical-align:middle}
.reveal{opacity:0;transform:translateY(16px);transition:.6s}
.reveal.in{opacity:1;transform:none}

/* ===== MULTI-PAGE ADDITIONS ===== */
.menu a[aria-current="page"],.drawer a[aria-current="page"]{color:var(--blue);background:var(--bg-soft)}
@media (prefers-color-scheme: dark){.menu a[aria-current="page"],.drawer a[aria-current="page"]{color:var(--blue-2)}}

/* page hero (subpages) */
.page-hero{background:var(--glow);padding:64px 0 52px;border-bottom:1px solid var(--line)}
.page-hero .shead{margin-bottom:0}
.crumb{font-size:12.5px;font-weight:600;color:var(--ink-3);margin-bottom:14px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--blue)}

/* home guide cards */
.guide{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:980px){.guide{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.guide{grid-template-columns:1fr}}
.gcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:24px;box-shadow:var(--shadow);transition:.2s}
.gcard:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--blue) 40%,var(--line))}
.gcard .ic{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:21px;
  background:linear-gradient(135deg,rgba(47,82,255,.14),rgba(18,199,224,.14));margin-bottom:14px}
.gcard h3{font-size:18px;font-weight:800;margin-bottom:6px}
.gcard p{color:var(--ink-2);font-size:14px;flex:1}
.gcard .go{margin-top:14px;font-size:13.5px;font-weight:800;color:var(--blue)}
@media (prefers-color-scheme: dark){.gcard .go{color:var(--blue-2)}}

/* members grid */
.members{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.member{padding:12px 18px;border:1px dashed var(--line);border-radius:12px;background:var(--card);
  font-weight:700;font-size:14.5px;color:var(--ink-3)}
.member.on{border-style:solid;color:var(--ink-2)}

/* shared CTA band */
.ctaband{text-align:center;margin-top:44px}
.ctaband .lead{margin:0 auto 20px}

.prose{max-width:660px}
.prose p{color:var(--ink-2);font-size:clamp(15px,1.55vw,17px);margin-bottom:16px}
.prose p:last-child{margin-bottom:0}

/* ===== 설립자 이력 ===== */
.cv{display:grid;grid-template-columns:1fr 1fr;gap:30px}
@media(max-width:820px){.cv{grid-template-columns:1fr;gap:26px}}
.cv-col h4,.pubs h4{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--blue);margin-bottom:12px}
@media (prefers-color-scheme: dark){.cv-col h4,.pubs h4{color:var(--blue-2)}}
.cv-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.cv-col li{font-size:14.5px;color:var(--ink-2);padding-left:14px;position:relative;line-height:1.6}
.cv-col li:before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;
  background:var(--cyan)}
.pubs{margin-top:36px;padding-top:26px;border-top:1px solid var(--line)}
.pubs ol{padding-left:18px;display:flex;flex-direction:column;gap:8px}
.pubs li{font-size:13px;color:var(--ink-3);line-height:1.65}
.pubs li::marker{color:var(--ink-3)}
.pubs a{color:var(--ink-3);text-decoration:underline;text-underline-offset:2px;word-break:break-all}
.pubs a:hover{color:var(--blue)}