:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-faint:#F4F8FF;
  --text:#1F2937;
  --muted:#64748B;
  --line:#E5EAF2;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --deep:#0F172A;
  --shadow:0 18px 45px rgba(15,23,42,.08);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#fff 0%,#f7faff 36%,#fff 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:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(229,234,242,.85);
}
.header-inner{
  width:min(1180px,calc(100% - 32px));
  margin:0 auto;
  min-height:70px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);letter-spacing:.2px}
.logo-img{width:38px;height:38px;object-fit:contain;border-radius:12px}
.brand-text{font-size:18px;white-space:nowrap}
.nav-toggle{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{width:20px;height:2px;background:var(--deep);border-radius:99px}
.main-nav{position:absolute;top:70px;left:16px;right:16px;display:none;flex-direction:column;padding:12px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.main-nav.is-open{display:flex}
.main-nav a{padding:12px 14px;border-radius:14px;color:#415066;font-weight:650;font-size:15px}
.main-nav a.active,.main-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.page-main{min-height:60vh}
.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.narrow{width:min(900px,calc(100% - 32px));margin:0 auto}
.section{padding:54px 0}
.section-head{margin-bottom:24px}
.section-kicker,.category-badge,.status-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.3px}
h1,h2,h3{margin:0;color:var(--deep);line-height:1.22}
h1{font-size:clamp(34px,7vw,64px);letter-spacing:-1.4px}
h2{font-size:clamp(26px,4vw,42px);letter-spacing:-.8px}
h3{font-size:20px}
p{margin:0;color:var(--muted)}
.lead{font-size:18px;color:#475569;margin-top:16px}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:16px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 14px 32px rgba(41,128,254,.22);transition:transform .2s ease,box-shadow .2s ease}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(41,128,254,.28)}
.text-link{color:var(--primary);font-weight:800}
.web3-dashboard-hero{padding:40px 0 36px;position:relative;overflow:hidden}
.web3-dashboard-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 12% 12%,rgba(41,128,254,.14),transparent 30%),radial-gradient(circle at 88% 20%,rgba(41,128,254,.10),transparent 26%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.hero-copy{background:rgba(255,255,255,.76);border:1px solid rgba(229,234,242,.85);border-radius:30px;padding:28px;box-shadow:var(--shadow)}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:26px}
.security-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.security-tags span{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#475569;font-weight:700;font-size:13px}
.hero-panel{display:grid;gap:16px}
.device-frame{background:linear-gradient(145deg,#fff,#f3f8ff);border:1px solid var(--line);border-radius:34px;padding:18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.device-frame:after{content:"";position:absolute;right:-45px;bottom:-45px;width:150px;height:150px;border-radius:50%;background:rgba(41,128,254,.08)}
.device-frame img{width:min(430px,100%);margin:0 auto;position:relative;z-index:1}
.status-grid{display:grid;grid-template-columns:1fr;gap:12px}
.status-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 12px 30px rgba(15,23,42,.05)}
.status-card strong{display:block;color:var(--deep);font-size:15px}
.status-card span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.service-index{padding:26px 0 34px}
.service-grid{display:grid;grid-template-columns:1fr;gap:14px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 28px rgba(15,23,42,.05);min-height:170px;display:flex;flex-direction:column;gap:10px}
.service-card .label{align-self:flex-start;background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}
.service-card p{font-size:15px}.service-card a{margin-top:auto;color:var(--primary);font-weight:800}
.feature-block{border:1px solid var(--line);background:#fff;border-radius:30px;padding:22px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr;gap:22px;align-items:center}
.feature-block.alt{background:linear-gradient(135deg,#f7fbff,#fff)}
.feature-media{background:var(--primary-faint);border:1px solid var(--line);border-radius:26px;padding:18px;min-height:220px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.feature-media img{max-height:340px;object-fit:contain}
.feature-content .download-btn{margin-top:20px}
.point-list{display:grid;gap:10px;margin:20px 0 0;padding:0;list-style:none}
.point-list li{padding:12px 14px;border:1px solid var(--line);background:#fff;border-radius:16px;color:#475569}
.point-list li:before{content:"";display:inline-block;width:8px;height:8px;margin-right:10px;border-radius:50%;background:var(--primary)}
.digital-assets-hub,.web3-ecosystem-section,.hardware-wallet-section,.swap-service-section,.privacy-boundary-section,.submit-chain-section,.developer-center-section{padding:56px 0}
.hardware-wallet-section,.privacy-boundary-section{background:linear-gradient(180deg,#f7fbff 0%,#fff 100%)}
.boundary-panel{display:grid;grid-template-columns:1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}
.boundary-tags{display:flex;flex-wrap:wrap;gap:10px}.boundary-tags span{padding:8px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:800;font-size:13px}
.eco-grid{display:grid;grid-template-columns:1fr;gap:16px}.eco-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 14px 34px rgba(15,23,42,.05)}
.code-panel{background:#101828;color:#E5E7EB;border-radius:26px;padding:22px;overflow:hidden;box-shadow:var(--shadow)}
.code-panel .code-line{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.code-panel .code-line:last-child{border-bottom:0}.code-panel b{color:#93C5FD}.code-panel span{color:#C7D2FE}
.process-steps{display:grid;grid-template-columns:1fr;gap:14px;margin-top:24px}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 30px rgba(15,23,42,.05)}
.step-num{width:36px;height:36px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:12px}
.risk-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:24px}.risk-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:20px;padding:18px;box-shadow:0 10px 24px rgba(15,23,42,.05)}
.risk-card small{display:inline-flex;margin-bottom:8px;padding:4px 8px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:800}
.faq-list{display:grid;gap:14px;margin-top:24px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 10px 24px rgba(15,23,42,.04)}
.faq-item h3{font-size:18px;margin-bottom:8px}
.cta-section{padding:58px 0;background:linear-gradient(135deg,#eef6ff,#fff);text-align:center}.cta-box{width:min(860px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:30px;padding:34px;box-shadow:var(--shadow)}.cta-box .download-btn{margin-top:22px}
.page-hero{padding:48px 0 28px}.page-hero-card{background:linear-gradient(135deg,#fff,#f5f9ff);border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:var(--shadow)}
.article-grid{display:grid;grid-template-columns:1fr;gap:22px;align-items:start}.article-main{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}.article-main h2{font-size:26px;margin:24px 0 12px}.article-main p+p{margin-top:14px}.article-main .download-btn{margin-top:24px}
.side-panel{display:grid;gap:14px}.info-card,.check-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 26px rgba(15,23,42,.05)}.check-card ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}.check-card li{padding-left:22px;position:relative;color:#475569}.check-card li:before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--primary)}
.two-col{display:grid;grid-template-columns:1fr;gap:16px}.mini-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:20px}.mini-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.mini-card strong{color:var(--deep)}
.download-flow{counter-reset:item;display:grid;gap:14px;margin-top:24px}.download-flow li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 18px 18px 66px;position:relative}.download-flow li:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}
.site-footer{background:#0F172A;color:#CBD5E1;margin-top:50px}.footer-inner{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:42px 0;display:grid;grid-template-columns:1fr;gap:28px}.footer-logo{color:#fff}.footer-brand p{max-width:460px;margin-top:14px;color:#CBD5E1}.footer-links{display:grid;grid-template-columns:1fr;gap:22px}.footer-links h3{color:#fff;font-size:16px;margin-bottom:12px}.footer-links a{display:block;color:#CBD5E1;margin:8px 0;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);width:min(1180px,calc(100% - 32px));margin:0 auto;padding:18px 0;display:flex;flex-direction:column;gap:8px;color:#94A3B8;font-size:13px}
@media (min-width:640px){.service-grid{grid-template-columns:repeat(2,1fr)}.status-grid{grid-template-columns:repeat(2,1fr)}.eco-grid,.risk-grid,.mini-grid{grid-template-columns:repeat(2,1fr)}.footer-links{grid-template-columns:repeat(3,1fr)}}
@media (min-width:920px){.nav-toggle{display:none}.main-nav{position:static;display:flex;flex-direction:row;align-items:center;box-shadow:none;border:0;background:transparent;padding:0;gap:2px}.main-nav a{font-size:14px;padding:9px 10px}.web3-dashboard-hero{padding:70px 0 54px}.hero-grid{grid-template-columns:1.03fr .97fr;gap:36px}.hero-copy{padding:42px}.service-grid{grid-template-columns:repeat(4,1fr)}.service-card:nth-child(1),.service-card:nth-child(7){grid-column:span 2}.feature-block{grid-template-columns:1fr 1fr;padding:34px}.feature-block.reverse .feature-media{order:2}.boundary-panel{grid-template-columns:1.15fr .85fr;padding:32px}.eco-grid{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.article-grid{grid-template-columns:minmax(0,1fr) 330px}.two-col{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:.9fr 1.1fr}.footer-bottom{flex-direction:row;justify-content:space-between}.page-hero-card{padding:40px}.section{padding:76px 0}}
@media (min-width:1120px){.main-nav a{padding:10px 12px}.status-grid{grid-template-columns:repeat(5,1fr)}}