:root{
  --primary:#2980FE;
  --primary-dark:#1265d9;
  --ink:#202735;
  --muted:#667085;
  --light:#f4f7fb;
  --ice:#eef6ff;
  --line:#e4e9f2;
  --white:#ffffff;
  --shadow:0 18px 45px rgba(24,54,91,.08);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;color:var(--ink);background:linear-gradient(180deg,#fff 0%,#f6f9fd 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);letter-spacing:.02em}
.logo img{width:36px;height:36px;border-radius:12px;object-fit:cover;box-shadow:0 10px 24px rgba(41,128,254,.14)}
.nav-toggle{display:inline-flex;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;background:var(--ice);border:1px solid #d9e8ff;border-radius:14px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:99px;transition:.2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-nav{display:none;position:absolute;top:70px;left:16px;right:16px;background:var(--white);border:1px solid var(--line);border-radius:22px;padding:14px;box-shadow:var(--shadow)}
.site-nav.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.site-nav a{padding:11px 12px;border-radius:14px;color:#475467;font-size:14px;font-weight:650}
.site-nav a:hover,.site-nav a.active{background:var(--ice);color:var(--primary)}
.content-container,.launch-hero,.section-wrap,.footer-inner{max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px}
.section-wrap{padding-top:64px;padding-bottom:20px}
.gradient-background{background:radial-gradient(circle at 10% 10%,rgba(41,128,254,.12),transparent 34%),linear-gradient(180deg,#ffffff 0%,#eef6ff 100%)}
.launch-hero{padding-top:52px;padding-bottom:62px;display:grid;gap:34px;align-items:center;position:relative}
.launch-hero:before{content:"";position:absolute;right:-80px;top:40px;width:240px;height:240px;background:rgba(41,128,254,.12);filter:blur(40px);border-radius:50%;z-index:-1}
.hero-copy h1,.page-hero h1{font-size:clamp(34px,7vw,66px);line-height:1.1;margin:0 0 18px;letter-spacing:-.04em;color:#152033}
.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--ice);color:var(--primary);font-size:13px;font-weight:800;margin-bottom:16px;border:1px solid #d7e8ff}
.hero-copy p,.page-hero p,.section-intro{color:var(--muted);font-size:17px;margin:0 0 22px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin:24px 0}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;box-shadow:0 16px 32px rgba(41,128,254,.25);border:1px solid rgba(255,255,255,.2);transition:transform .2s,box-shadow .2s,background .2s}
.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 20px 36px rgba(41,128,254,.30)}
.security-tags,.floating-tags,.mini-links{display:flex;flex-wrap:wrap;gap:10px}
.security-tags span,.floating-tags span,.mini-links a{padding:8px 12px;border-radius:999px;background:var(--white);border:1px solid var(--line);color:#4f5d73;font-size:13px;font-weight:700;box-shadow:0 10px 24px rgba(21,32,51,.04)}
.hero-visual{position:relative;min-height:330px;display:flex;align-items:center;justify-content:center}
.app-showcase{position:relative;width:min(86vw,390px);padding:22px;border-radius:36px;background:linear-gradient(145deg,#fff,#eff6ff);border:1px solid #dbe9ff;box-shadow:0 28px 70px rgba(41,128,254,.18)}
.app-showcase img{margin:0 auto;border-radius:28px;filter:drop-shadow(0 18px 28px rgba(31,54,92,.14))}
.float-pill{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:18px;padding:10px 13px;box-shadow:0 14px 30px rgba(22,45,82,.09);font-size:13px;font-weight:800;color:#344054}
.float-pill strong{display:block;color:var(--primary);font-size:12px}
.pill-one{left:-8px;top:44px}.pill-two{right:-8px;top:120px}.pill-three{left:8px;bottom:72px}.pill-four{right:12px;bottom:18px}
.highlight-bar{display:grid;grid-template-columns:1fr;gap:14px;margin-top:-28px}
.launch-card,.feature-tile,.risk-card,.faq-item,.article-card,.side-panel,.step-card,.info-panel,.download-card{background:var(--white);border:1px solid var(--line);border-radius:24px;box-shadow:0 12px 34px rgba(21,32,51,.05)}
.launch-card{padding:20px;min-height:160px;transition:.2s}
.launch-card:hover,.feature-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.launch-card .tag,.risk-card .tag,.info-panel .tag{display:inline-flex;border-radius:999px;background:var(--ice);color:var(--primary);font-size:12px;font-weight:800;padding:5px 9px;margin-bottom:10px}
.launch-card h3,.feature-tile h3,.risk-card h3,.step-card h3,.info-panel h3{margin:0 0 8px;font-size:19px;line-height:1.35;color:#172033}
.launch-card p,.feature-tile p,.risk-card p,.step-card p,.info-panel p,.article-card p,.side-panel p{margin:0 0 12px;color:var(--muted)}
.text-link{color:var(--primary);font-weight:800;font-size:14px}
.big-feature-card{margin:38px 0;display:grid;gap:24px;align-items:center;padding:24px;background:var(--white);border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow);overflow:hidden}
.big-feature-card.soft{background:linear-gradient(135deg,#fff 0%,#eef6ff 100%)}
.big-feature-card.reverse .feature-media{order:-1}
.feature-copy h2,.section-title{font-size:clamp(28px,5vw,44px);line-height:1.15;margin:0 0 14px;letter-spacing:-.03em;color:#172033}
.feature-copy p{color:var(--muted);margin:0 0 18px;font-size:16px}
.feature-list,.check-list{display:grid;gap:10px;margin:18px 0 20px;padding:0;list-style:none}
.feature-list li,.check-list li{position:relative;padding-left:24px;color:#435064}
.feature-list li:before,.check-list li:before{content:"";position:absolute;left:0;top:.72em;width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(41,128,254,.12)}
.feature-media{padding:18px;border-radius:28px;background:linear-gradient(145deg,#f7fbff,#eaf4ff);border:1px solid #dcecff;display:flex;align-items:center;justify-content:center;min-height:250px}
.feature-media img{max-height:420px;object-fit:contain}
.process-steps{display:grid;gap:14px;margin-top:22px}
.step-card{padding:20px;position:relative;overflow:hidden}
.step-card .num{display:inline-flex;width:36px;height:36px;border-radius:12px;background:var(--primary);color:#fff;align-items:center;justify-content:center;font-weight:900;margin-bottom:12px;box-shadow:0 12px 24px rgba(41,128,254,.2)}
.risk-grid,.category-grid,.faq-grid,.info-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px}
.risk-card{padding:20px;border-left:4px solid var(--primary)}
.risk-card .suggest{font-weight:800;color:#1f2b3d;margin:4px 0 10px}
.app-category-center{padding:34px 22px;border-radius:34px;background:linear-gradient(135deg,#f8fbff,#eef6ff);border:1px solid #dce9fb;box-shadow:inset 0 1px 0 rgba(255,255,255,.7)}
.feature-tile{padding:19px;min-height:176px}
.faq-item{padding:20px}
.faq-item h3{margin:0 0 8px;font-size:18px;color:#172033}
.faq-item p{margin:0;color:var(--muted)}
.cta-section{max-width:1180px;margin:58px auto 74px;padding:0 20px}
.cta-box{padding:34px 22px;border-radius:34px;text-align:center;background:radial-gradient(circle at 80% 20%,rgba(41,128,254,.16),transparent 28%),linear-gradient(135deg,#ffffff,#eef6ff);border:1px solid #dce9fb;box-shadow:var(--shadow)}
.cta-box h2{font-size:clamp(28px,5vw,42px);margin:0 0 12px;letter-spacing:-.03em}
.cta-box p{color:var(--muted);max-width:680px;margin:0 auto 22px}
.page-hero{padding:54px 20px 34px;background:radial-gradient(circle at 85% 10%,rgba(41,128,254,.15),transparent 26%),linear-gradient(180deg,#fff,#f2f7ff);border-bottom:1px solid var(--line)}
.page-hero-inner{max-width:980px;margin:0 auto}
.detail-layout{max-width:1180px;margin:0 auto;padding:38px 20px 74px;display:grid;gap:22px}
.article-card{padding:24px}
.article-card h2{font-size:26px;margin:0 0 12px;line-height:1.25;color:#172033}
.article-card h3{font-size:20px;margin:24px 0 8px;color:#172033}
.side-panel{padding:22px;align-self:start;background:linear-gradient(180deg,#ffffff,#f5f9ff)}
.side-panel h3{margin:0 0 12px;font-size:20px}
.side-panel a{display:block;padding:10px 0;color:var(--primary);font-weight:800;border-bottom:1px solid var(--line)}
.download-strip{margin-top:22px;padding:22px;border-radius:28px;background:var(--ice);border:1px solid #dcecff;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.safety-panel{padding:22px;border-radius:26px;background:#f7fbff;border:1px solid #dcecff;margin:22px 0}
.safety-panel h3{margin:0 0 10px;color:#172033}
.notice{padding:16px 18px;border-radius:20px;background:#f6f8fb;border:1px solid var(--line);color:#4a5568;margin:18px 0}
.download-card{padding:24px;max-width:720px;margin:24px auto 0;text-align:left}
.download-steps{counter-reset:step;display:grid;gap:14px;margin:22px 0;padding:0;list-style:none}
.download-steps li{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px 16px 16px 60px;position:relative;color:#475467}
.download-steps li:before{content:counter(step);position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}
.site-footer{background:#ffffff;border-top:1px solid var(--line);padding-top:42px}
.footer-inner{display:grid;gap:28px;padding-bottom:30px}
.footer-brand p{color:var(--muted);max-width:420px;margin:14px 0 0}
.footer-links{display:grid;grid-template-columns:1fr;gap:22px}
.footer-links h3{margin:0 0 10px;font-size:15px;color:#172033}
.footer-links a{display:block;color:#667085;padding:5px 0;font-size:14px}
.footer-bottom{text-align:center;color:#8a94a6;border-top:1px solid var(--line);padding:16px;font-size:13px}
@media (min-width:640px){
  .highlight-bar{grid-template-columns:repeat(2,1fr)}
  .risk-grid,.category-grid,.faq-grid,.info-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .download-strip{flex-direction:row;align-items:center;justify-content:space-between}
}
@media (min-width:900px){
  .nav-toggle{display:none}
  .site-nav{display:flex;position:static;background:transparent;border:0;box-shadow:none;padding:0;gap:2px;align-items:center}
  .site-nav a{font-size:14px;padding:9px 10px}
  .launch-hero{grid-template-columns:1.02fr .98fr;padding-top:84px;padding-bottom:92px}
  .highlight-bar{grid-template-columns:repeat(3,1fr)}
  .big-feature-card{grid-template-columns:1fr 1fr;padding:36px;margin:46px 0}
  .big-feature-card.reverse .feature-media{order:2}
  .wallet-feature .feature-media,.swap-feature .feature-media{order:2}
  .cold-wallet-feature .feature-media,.dapp-feature .feature-media{order:1}
  .cold-wallet-feature .feature-copy,.dapp-feature .feature-copy{order:2}
  .process-steps{grid-template-columns:repeat(3,1fr)}
  .risk-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(4,1fr)}
  .faq-grid{grid-template-columns:repeat(2,1fr)}
  .detail-layout{grid-template-columns:minmax(0,1fr) 320px;align-items:start}
  .footer-inner{grid-template-columns:1fr 1.35fr}
  .footer-links{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:1120px){
  .site-nav a{padding:10px 12px}
  .hero-copy h1{font-size:68px}
  .risk-grid{grid-template-columns:repeat(4,1fr)}
}