:root{
  --bg:#05080f;
  --bg-2:#070c16;
  --panel:rgba(15,23,38,.72);
  --line:rgba(120,160,200,.16);
  --line-2:rgba(120,160,200,.28);
  --text:#e8f1fb;
  --muted:#93a6bd;
  --dim:#6b7f96;
  --teal:#3ef0c8;
  --blue:#2b8cff;
  --gold:#f0c674;
  --ok:#4ade80;
  --radius:18px;
  --wrap:1180px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

.wrap{width:min(calc(100% - 48px),var(--wrap));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--teal);color:#04211d;padding:10px 16px;border-radius:10px;font-weight:700;transition:top .2s}
.skip:focus{top:16px}

/* background */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  radial-gradient(1200px 700px at 75% -10%,rgba(43,140,255,.16),transparent 60%),
  radial-gradient(900px 600px at 10% 10%,rgba(62,240,200,.10),transparent 60%),
  linear-gradient(180deg,#05080f 0%,#060a13 45%,#05080f 100%);}
.bg-grid{position:absolute;inset:-2px;background-image:
  linear-gradient(rgba(120,160,200,.055) 1px,transparent 1px),
  linear-gradient(90deg,rgba(120,160,200,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 40%,transparent 100%);
}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:drift 18s var(--ease) infinite alternate}
.orb-a{width:520px;height:520px;background:rgba(43,140,255,.30);top:-160px;right:-120px}
.orb-b{width:420px;height:420px;background:rgba(62,240,200,.20);top:38%;left:-160px;animation-delay:-6s}
.orb-c{width:380px;height:380px;background:rgba(240,198,116,.12);bottom:-180px;right:18%;animation-delay:-12s}
.noise{position:absolute;inset:0;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E")}
@keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(30px,40px,0) scale(1.08)}}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(5,8,15,.55);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
.nav.scrolled{background:rgba(5,8,15,.82);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;filter:drop-shadow(0 8px 18px rgba(43,140,255,.16))}
.bw-hkd{color:var(--teal)}
.bw-dig{color:var(--blue)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:17px;letter-spacing:.01em;font-weight:800;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.22em}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;padding:6px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),background .2s,border-color .2s,box-shadow .2s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-solid{background:linear-gradient(135deg,var(--teal),#2bd4ff 55%,var(--blue));color:#03211f;box-shadow:0 10px 30px -12px rgba(62,240,200,.55)}
.btn-solid:hover{box-shadow:0 16px 40px -14px rgba(62,240,200,.7)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(62,240,200,.45)}
.btn-lg{padding:14px 24px;font-size:15px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-2);background:rgba(255,255,255,.03);padding:10px;gap:4px;flex-direction:column;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;height:1.5px;background:var(--text);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* hero */
.hero{padding:76px 0 0;position:relative}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding-bottom:64px}
.pill{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;color:#bfe9e2;background:rgba(62,240,200,.08);border:1px solid rgba(62,240,200,.22);padding:7px 13px;border-radius:999px;letter-spacing:.02em}
.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(62,240,200,.7);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(62,240,200,.55)}70%{box-shadow:0 0 0 9px rgba(62,240,200,0)}100%{box-shadow:0 0 0 0 rgba(62,240,200,0)}}
.hero h1{font-size:clamp(44px,6.2vw,76px);font-weight:800;margin:22px 0 20px;letter-spacing:-.035em}
.grad{background:linear-gradient(100deg,var(--teal),#6cc6ff 45%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:560px;color:var(--muted);font-size:17px}
.hero-actions{display:flex;gap:12px;margin:32px 0 36px;flex-wrap:wrap}
.hero-points{display:flex;gap:36px;flex-wrap:wrap}
.hero-points li{display:flex;flex-direction:column;gap:2px;padding-left:16px;border-left:1px solid var(--line-2)}
.hero-points b{font-size:22px;letter-spacing:-.02em}
.hero-points span{font-size:12.5px;color:var(--dim);letter-spacing:.04em}

/* hero visual */
.hero-visual{position:relative;min-height:440px;display:grid;place-items:center}
.coin-card{position:relative;width:min(100%,380px);padding:34px 28px 26px;border-radius:26px;background:linear-gradient(160deg,rgba(18,28,45,.9),rgba(9,14,24,.92));border:1px solid var(--line-2);box-shadow:0 40px 80px -40px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.06);animation:floaty 7s var(--ease) infinite alternate}
@keyframes floaty{from{transform:translateY(0)}to{transform:translateY(-10px)}}
.coin{position:relative;width:190px;height:190px;margin:0 auto 26px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 32% 26%,#9ffbe6,#34d8b4 32%,#169b8b 62%,#0a5b57 100%);
  box-shadow:0 24px 60px -20px rgba(62,240,200,.55),inset 0 -10px 30px rgba(0,0,0,.35),inset 0 8px 18px rgba(255,255,255,.35);}
.coin::before{content:"";position:absolute;inset:10px;border-radius:50%;border:1px solid rgba(255,255,255,.35)}
.coin-ring{position:absolute;inset:-14px;border-radius:50%;border:1px dashed rgba(62,240,200,.35);animation:spin 22s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.coin-inner{display:flex;flex-direction:column;align-items:center;color:#04231f}
.coin-sym{font-size:44px;font-weight:800;letter-spacing:-.04em;line-height:1}
.coin-name{font-size:12px;letter-spacing:.32em;font-weight:700;margin-top:6px;opacity:.75}
.ticker{display:grid;gap:2px;border-top:1px solid var(--line);padding-top:14px}
.ticker-row{display:flex;justify-content:space-between;align-items:center;padding:7px 2px;font-size:13px}
.ticker-row span{color:var(--dim)}
.ticker-row b{font-variant-numeric:tabular-nums}
.up{color:var(--teal)}
.ok{color:var(--ok)}
.float-card{position:absolute;display:flex;flex-direction:column;gap:2px;padding:12px 16px;border-radius:14px;background:rgba(12,19,31,.92);border:1px solid var(--line-2);box-shadow:0 20px 40px -24px #000;font-size:12px}
.float-card span{color:var(--dim);letter-spacing:.06em}
.float-card b{font-size:15px;font-variant-numeric:tabular-nums}
.fc-1{top:22px;left:-14px;animation:floaty 6s var(--ease) infinite alternate}
.fc-2{bottom:34px;right:-10px;animation:floaty 6.6s var(--ease) infinite alternate-reverse}

/* marquee */
.marquee{overflow:hidden;border-block:1px solid var(--line);background:rgba(8,13,22,.5);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:44px;padding:14px 0;width:max-content;animation:scroll 32s linear infinite;font-size:12.5px;letter-spacing:.16em;color:var(--dim);text-transform:uppercase}
.marquee-track span{display:flex;align-items:center;gap:12px;white-space:nowrap}
.marquee-track span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--teal);opacity:.7}
@keyframes scroll{to{transform:translateX(-50%)}}

/* sections */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(8,13,22,.55),rgba(5,8,15,0));border-block:1px solid rgba(120,160,200,.08)}
.sec-head{max-width:720px;margin:0 auto 52px;text-align:center}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.26em;color:var(--teal);text-transform:uppercase;margin-bottom:14px}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);font-weight:750;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16.5px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:40px}
.stat{padding:22px;border-radius:16px;background:var(--panel);border:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.stat-label{font-size:12px;color:var(--dim);letter-spacing:.1em}
.stat-num{font-size:22px;font-weight:750;letter-spacing:-.02em}
.stat em{font-style:normal;font-size:12px;color:var(--dim)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{padding:30px;border-radius:var(--radius);background:linear-gradient(170deg,rgba(18,27,43,.72),rgba(10,15,25,.72));border:1px solid var(--line);transition:transform .3s var(--ease),border-color .3s,background .3s}
.card:hover{transform:translateY(-4px);border-color:rgba(62,240,200,.32);background:linear-gradient(170deg,rgba(20,32,50,.85),rgba(10,15,25,.85))}
.ic{font-size:12px;letter-spacing:.2em;color:var(--teal);margin-bottom:18px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.steps li{display:flex;gap:18px;padding:26px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(12,19,31,.55)}
.step-no{flex:0 0 38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:700;color:#04211f;background:linear-gradient(135deg,var(--teal),#39b8ff)}
.steps h3{font-size:17px;margin-bottom:6px}
.steps p{color:var(--muted);font-size:14px}
.mech-note{display:flex;gap:14px;align-items:flex-start;margin-top:24px;padding:18px 20px;border-radius:14px;background:rgba(62,240,200,.06);border:1px solid rgba(62,240,200,.2)}
.note-ic{flex:0 0 24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:#04211f;background:var(--teal)}
.mech-note p{font-size:14px;color:#bcdfd8}

/* reserve */
.reserve-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.checklist{display:grid;gap:12px;margin:26px 0 22px}
.checklist li{position:relative;padding-left:30px;color:var(--muted);font-size:15px}
.checklist li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:rgba(62,240,200,.14);border:1px solid rgba(62,240,200,.5)}
.checklist li::after{content:"";position:absolute;left:5px;top:11px;width:6px;height:3px;border-left:1.5px solid var(--teal);border-bottom:1.5px solid var(--teal);transform:rotate(-45deg)}
.disclaimer-inline{font-size:12.5px;color:var(--dim);border-left:2px solid rgba(120,160,200,.3);padding-left:12px}
.reserve-panel{padding:26px;border-radius:22px;background:linear-gradient(170deg,rgba(18,27,43,.9),rgba(9,14,24,.9));border:1px solid var(--line-2)}
.panel-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);margin-bottom:16px}
.tag{font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid rgba(240,198,116,.4);color:var(--gold)}
.donut-wrap{position:relative;display:grid;place-items:center;margin:8px 0 18px}
.donut{width:210px;height:210px;transform:rotate(-90deg)}
.donut circle{fill:none;stroke-width:12;stroke-linecap:round}
.d-bg{stroke:rgba(120,160,200,.12)}
.d-a{stroke:var(--teal)}
.d-b{stroke:var(--blue)}
.donut-center{position:absolute;display:flex;flex-direction:column;align-items:center}
.donut-center b{font-size:30px;letter-spacing:-.03em}
.donut-center span{font-size:12px;color:var(--dim);letter-spacing:.12em}
.legend{display:grid;gap:10px;margin-bottom:18px}
.legend li{display:flex;align-items:center;gap:10px;font-size:14px}
.legend b{margin-left:auto;font-variant-numeric:tabular-nums}
.k{width:9px;height:9px;border-radius:3px}
.k-a{background:var(--teal)}
.k-b{background:var(--blue)}
.panel-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid var(--line);padding-top:16px}
.panel-foot div{display:flex;flex-direction:column;gap:2px}
.panel-foot span{font-size:11px;color:var(--dim)}
.panel-foot b{font-size:13px}

/* ecosystem */
.eco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.eco{padding:26px;border-radius:16px;border:1px solid var(--line);background:rgba(12,19,31,.55);transition:border-color .25s,transform .25s var(--ease)}
.eco:hover{border-color:rgba(62,240,200,.3);transform:translateY(-3px)}
.eco h3{font-size:16.5px;margin-bottom:8px}
.eco p{font-size:14px;color:var(--muted)}

/* timeline */
.timeline{position:relative;display:grid;gap:8px;max-width:860px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,var(--teal),rgba(120,160,200,.15))}
.tl{position:relative;display:flex;gap:24px;padding:18px 0 18px 34px}
.tl-dot{position:absolute;left:0;top:26px;width:15px;height:15px;border-radius:50%;background:#0a1220;border:2px solid var(--teal);box-shadow:0 0 0 4px rgba(62,240,200,.10)}
.tl b{font-size:11.5px;letter-spacing:.2em;color:var(--teal);text-transform:uppercase}
.tl h3{font-size:18px;margin:4px 0 6px}
.tl p{font-size:14px;color:var(--muted)}

/* faq */
.faq-wrap{max-width:860px}
.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--line);border-radius:14px;background:rgba(12,19,31,.55);padding:0 20px;transition:border-color .25s,background .25s}
.faq details[open]{border-color:rgba(62,240,200,.28);background:rgba(14,23,37,.75)}
.faq summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-size:15.5px;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:20px;color:var(--muted);transition:transform .2s,color .2s}
.faq details[open] summary::after{content:"−";color:var(--teal)}
.faq p{padding:0 0 18px;color:var(--muted);font-size:14.5px;max-width:70ch}

/* cta */
.cta{padding:20px 0 96px}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px;border-radius:24px;border:1px solid rgba(62,240,200,.22);background:
  radial-gradient(600px 200px at 20% 0%,rgba(62,240,200,.12),transparent 70%),
  radial-gradient(500px 200px at 90% 100%,rgba(43,140,255,.14),transparent 70%),
  rgba(10,16,27,.85);flex-wrap:wrap}
.cta h2{font-size:clamp(24px,3vw,34px);margin-bottom:8px}
.cta p{color:var(--muted);font-size:15px}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;position:relative;align-items:center}
.cta-form input{width:290px;max-width:100%;padding:13px 16px;border-radius:12px;border:1px solid var(--line-2);background:rgba(5,8,15,.7);outline:none;transition:border-color .2s,box-shadow .2s}
.cta-form input:focus{border-color:rgba(62,240,200,.5);box-shadow:0 0 0 4px rgba(62,240,200,.1)}
.form-msg{position:absolute;left:0;top:calc(100% + 8px);font-size:12.5px;color:var(--teal)}
.form-msg.err{color:#ff8b8b}

/* footer */
.footer{border-top:1px solid var(--line);padding:56px 0 26px;background:rgba(4,7,13,.6)}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr .8fr;gap:32px}
.foot-brand p{color:var(--dim);font-size:13.5px;margin-top:14px;max-width:34ch}
.foot-col h4{font-size:12px;letter-spacing:.2em;color:var(--dim);text-transform:uppercase;margin-bottom:14px}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:4px 0;transition:color .2s}
.foot-col a:hover{color:var(--teal)}
.disclosure{margin-top:40px;padding-top:22px;border-top:1px solid var(--line)}
.disclosure p{font-size:12px;color:var(--dim);max-width:100ch}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:26px;font-size:12.5px;color:var(--dim);flex-wrap:wrap}
.foot-links{display:flex;gap:18px}
.foot-links a:hover{color:var(--text)}

/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#0d1726;border:1px solid rgba(62,240,200,.35);color:var(--text);padding:12px 18px;border-radius:12px;font-size:13.5px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:90;box-shadow:0 20px 40px -20px #000}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px;padding-bottom:52px}
  .hero-visual{min-height:380px;order:-1}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;padding:10px 24px 18px;background:rgba(5,8,15,.97);border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid rgba(120,160,200,.08)}
  .nav-toggle{display:flex}
  .nav-cta .btn-ghost{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .reserve-grid{grid-template-columns:1fr;gap:36px}
  .eco-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:640px){
  .wrap{width:calc(100% - 32px)}
  .nav-inner{gap:14px}
  .nav-cta{gap:8px}
  .nav-cta .btn-solid{display:none}
  .brand-text em{display:none}
  .hero{padding-top:40px}
  .hero h1{font-size:clamp(38px,11vw,52px)}
  .hero-points{gap:20px}
  .cards,.steps,.eco-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:10px}
  .stat{padding:16px}
  .stat-num{font-size:18px}
  .section{padding:68px 0}
  .cta-inner{padding:28px;gap:22px}
  .cta-form input{width:100%}
  .cta-form .btn{width:100%}
  .panel-foot{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .float-card{display:none}
  .coin{width:160px;height:160px}
  .coin-sym{font-size:38px}
}

/* language switch */
.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line-2);border-radius:10px;background:rgba(255,255,255,.03)}
.lang-switch a{font-size:12px;line-height:1;padding:6px 8px;border-radius:7px;color:var(--dim);transition:background .2s,color .2s}
.lang-switch a:hover{color:var(--text)}
.lang-switch a[aria-current="page"]{background:rgba(62,240,200,.14);color:var(--teal)}
@media (max-width:640px){.lang-switch{margin-left:auto}}