:root{
  --primary:#2980FE;
  --primary-dark:#1762d3;
  --text:#202735;
  --muted:#687083;
  --light:#f5f7fb;
  --panel:#ffffff;
  --line:#e6ecf5;
  --soft-blue:#eef6ff;
  --soft-blue-2:#f7fbff;
  --deep:#2f3a4c;
  --radius:24px;
  --radius-lg:30px;
  --shadow:0 14px 40px rgba(31,72,128,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;
  background:linear-gradient(180deg,#fff 0%,#f7fbff 42%,#f5f7fb 100%);
  line-height:1.75;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.section{padding:56px 0}
.section-header{margin-bottom:24px}
.eyebrow,.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border-radius:999px;
  background:var(--soft-blue);
  color:var(--primary);
  border:1px solid #d8eaff;
  font-weight:700;
  font-size:13px;
}
h1,h2,h3{line-height:1.22;margin:0 0 14px;color:#182235}
h1{font-size:clamp(34px,8vw,64px);letter-spacing:-1.6px}
h2{font-size:clamp(26px,5vw,42px);letter-spacing:-.9px}
h3{font-size:20px}
p{margin:0 0 14px;color:var(--muted)}
.lead{font-size:18px;color:#465064;max-width:760px}
.small{font-size:14px;color:var(--muted)}
.site-header{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:min(1180px,calc(100% - 28px));
  min-height:72px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#182235;white-space:nowrap}
.logo{width:40px;height:40px;object-fit:contain;border-radius:12px}
.nav-toggle{
  border:1px solid var(--line);
  background:#fff;
  color:var(--deep);
  border-radius:14px;
  padding:8px 12px;
  font-size:22px;
}
.site-nav{
  display:none;
  position:absolute;
  left:14px;
  right:14px;
  top:76px;
  padding:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
}
.site-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.site-nav a{
  padding:10px 12px;
  border-radius:14px;
  color:#445066;
  font-weight:650;
  font-size:14px;
}
.site-nav a.active,.site-nav a:hover{background:var(--soft-blue);color:var(--primary)}
.download-btn{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-height:48px;
  padding:12px 24px;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
  font-weight:800;
  border:1px solid var(--primary);
  box-shadow:0 12px 26px rgba(41,128,254,.22);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.download-btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 16px 32px rgba(41,128,254,.28)}
.link-arrow{color:var(--primary);font-weight:750;display:inline-flex;gap:6px;align-items:center}
.link-arrow:after{content:'›';font-size:20px;line-height:1}
.web3-dashboard-hero{
  position:relative;
  overflow:hidden;
  padding:48px 0 34px;
  background:radial-gradient(circle at 82% 18%,rgba(41,128,254,.18),transparent 32%),linear-gradient(180deg,#fff 0%,#f6fbff 100%);
}
.web3-dashboard-hero:before{
  content:'';
  position:absolute;
  width:420px;
  height:420px;
  border-radius:50%;
  background:rgba(41,128,254,.08);
  left:-160px;
  top:60px;
}
.hero-grid{position:relative;display:grid;gap:28px;align-items:center}
.hero-copy{padding:12px 0}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:26px 0 18px}
.security-tags{display:flex;gap:10px;flex-wrap:wrap}
.security-tags span{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:6px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:#516075;
  font-size:13px;
  font-weight:700;
}
.console-preview{
  position:relative;
  background:rgba(255,255,255,.86);
  border:1px solid #dfeafd;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:18px;
}
.device-frame{
  border-radius:28px;
  overflow:hidden;
  background:#f7faff;
  border:1px solid var(--line);
  padding:12px;
}
.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.status-card{
  padding:14px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
}
.status-card strong{display:block;color:#1f2b3e;font-size:14px}
.status-card span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.service-index{padding:42px 0 28px}
.index-grid{display:grid;gap:14px}
.service-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:0 10px 28px rgba(24,50,90,.05);
  transition:transform .2s ease,border-color .2s ease;
}
.service-card:hover{transform:translateY(-3px);border-color:#bfdcff}
.service-card .tag{display:inline-block;color:var(--primary);font-weight:800;font-size:13px;margin-bottom:10px}
.feature-section{
  padding:54px 0;
}
.feature-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:22px;
  display:grid;
  gap:22px;
  align-items:center;
}
.feature-card.reverse .feature-media{order:-1}
.feature-media{
  background:linear-gradient(135deg,#f2f8ff,#fff);
  border:1px solid var(--line);
  border-radius:26px;
  padding:16px;
  min-height:240px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.feature-media img{max-height:360px;object-fit:contain}
.point-list{display:grid;gap:10px;margin:18px 0 20px;padding:0;list-style:none}
.point-list li{
  position:relative;
  padding:12px 14px 12px 42px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fbfdff;
  color:#4a5568;
}
.point-list li:before{
  content:'';
  position:absolute;
  left:16px;
  top:19px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 5px rgba(41,128,254,.12);
}
.digital-assets-hub .feature-card{background:linear-gradient(135deg,#fff 0%,#f5faff 100%)}
.web3-ecosystem-section .feature-card{background:#fff}
.hardware-wallet-section{background:linear-gradient(180deg,#f3f8ff,#fff)}
.swap-service-section .feature-card{background:linear-gradient(135deg,#fff,#f7fbff)}
.privacy-boundary-section,.submit-chain-section,.developer-center-section{padding:54px 0}
.boundary-panel,.chain-panel,.developer-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:24px;
}
.boundary-grid,.chain-grid,.developer-grid{display:grid;gap:16px;margin-top:18px}
.info-tile{
  border:1px solid var(--line);
  border-radius:20px;
  background:var(--soft-blue-2);
  padding:18px;
}
.info-tile strong{display:block;color:#1d2a3e;margin-bottom:8px}
.code-panel{
  background:#f8fbff;
  border:1px solid #dbe9ff;
  border-radius:22px;
  padding:18px;
  color:#2e4058;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  overflow:auto;
}
.code-panel span{color:var(--primary);font-weight:800}
.process-steps{padding:54px 0;background:#fff}
.steps-grid{display:grid;gap:14px;counter-reset:step}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  padding:20px 18px 18px;
  box-shadow:0 10px 24px rgba(35,70,110,.05);
}
.step-card .num{
  width:38px;height:38px;border-radius:13px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:900;margin-bottom:12px;
}
.risk-section{padding:54px 0;background:linear-gradient(180deg,#f7fbff,#fff)}
.risk-grid{display:grid;gap:14px}
.risk-card{
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--primary);
  border-radius:20px;
  padding:18px;
}
.risk-card b{display:block;color:#1b2535;margin-bottom:8px}
.faq-section{padding:54px 0}
.faq-grid{display:grid;gap:12px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:18px;
}
.faq-item h3{font-size:18px;margin-bottom:8px}
.cta-section{padding:56px 0 72px}
.cta-card{
  text-align:center;
  background:linear-gradient(135deg,#eef6ff,#fff);
  border:1px solid #d7e9ff;
  border-radius:var(--radius-lg);
  padding:36px 20px;
  box-shadow:var(--shadow);
}
.page-hero{padding:46px 0 28px;background:radial-gradient(circle at 86% 20%,rgba(41,128,254,.16),transparent 30%),#fff}
.page-hero .container{display:grid;gap:16px}
.content-layout{padding:28px 0 64px}
.content-grid{display:grid;gap:20px;align-items:start}
.article-card,.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:22px;
}
.article-card h2{font-size:26px;margin-top:28px}
.article-card h2:first-child{margin-top:0}
.reading-list{display:grid;gap:12px;padding:0;margin:16px 0 22px;list-style:none}
.reading-list li{padding:14px 16px;border:1px solid var(--line);border-radius:18px;background:#fbfdff}
.checklist{display:grid;gap:10px;margin:18px 0}
.checklist div{padding:12px 14px;border-radius:16px;background:var(--soft-blue-2);border:1px solid #dfeeff;color:#465064}
.side-card{position:relative}
.side-card h3{margin-bottom:12px}
.side-card a{display:block;padding:10px 0;color:var(--primary);font-weight:750;border-bottom:1px solid var(--line)}
.side-card a:last-child{border-bottom:0}
.notice-box{padding:18px;border-radius:20px;background:#f7fbff;border:1px solid #dcecff;margin:18px 0;color:#4b5870}
.category-grid{display:grid;gap:14px;margin-top:16px}
.category-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 8px 22px rgba(40,70,110,.05)}
.safety-panel{background:#fff;border:1px solid #dbe9ff;border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.site-footer{background:#182235;color:#dce6f7;padding:44px 0 0}
.site-footer p{color:#aebbd0}
.footer-grid{display:grid;gap:26px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand img{width:36px;height:36px;object-fit:contain;border-radius:10px}
.site-footer h3{color:#fff;font-size:16px}
.site-footer a{display:block;color:#dbe8ff;padding:6px 0;font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding:18px 16px;text-align:center;color:#aebbd0;font-size:13px}
@media (min-width:680px){
  .container{width:min(1120px,calc(100% - 48px))}
  .index-grid{grid-template-columns:repeat(2,1fr)}
  .status-grid{grid-template-columns:repeat(5,1fr)}
  .boundary-grid,.chain-grid,.developer-grid{grid-template-columns:repeat(3,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .risk-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:960px){
  .nav-toggle{display:none}
  .site-nav{position:static;display:flex;align-items:center;gap:2px;padding:0;border:0;box-shadow:none;background:transparent}
  .site-nav.open{display:flex}
  .site-nav a{font-size:14px;padding:9px 10px}
  .web3-dashboard-hero{padding:78px 0 54px}
  .hero-grid{grid-template-columns:1.02fr .98fr;gap:48px}
  .console-preview{padding:22px}
  .status-grid{grid-template-columns:repeat(5,1fr)}
  .index-grid{grid-template-columns:repeat(4,1fr)}
  .index-grid .service-card:nth-child(1),.index-grid .service-card:nth-child(7){grid-column:span 2}
  .feature-card{grid-template-columns:1.05fr .95fr;padding:30px}
  .feature-card.reverse .feature-media{order:2}
  .content-grid{grid-template-columns:minmax(0,1fr) 320px;gap:28px}
  .steps-grid{grid-template-columns:repeat(3,1fr)}
  .risk-grid{grid-template-columns:repeat(4,1fr)}
  .faq-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr .8fr .8fr}
  .article-card,.side-card{padding:30px}
}
@media (min-width:1180px){
  .site-nav a{padding:10px 12px}
  .hero-copy{padding-right:26px}
}
@media (max-width:420px){
  .brand span{font-size:14px}
  .site-nav.open{grid-template-columns:1fr}
  .status-grid{grid-template-columns:1fr}
  .download-btn{width:100%}
  .hero-actions{align-items:stretch}
  .security-tags span{width:100%;justify-content:center}
}