:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-light:#F5FAFF;
  --text:#1F2937;
  --muted:#6B7280;
  --line:#E5E7EB;
  --panel:#FFFFFF;
  --bg:#F7FAFD;
  --deep:#111827;
  --shadow:0 18px 45px rgba(31,41,55,.08);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0%,#F7FAFD 44%,#fff 100%);line-height:1.7;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}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);letter-spacing:.02em}.logo{width:38px;height:38px;object-fit:contain}.brand span{font-size:18px}
.nav-toggle{width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.nav-toggle span{width:18px;height:2px;background:var(--deep);border-radius:99px}
.main-nav{position:absolute;top:72px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow);display:none;grid-template-columns:1fr 1fr;gap:8px}.main-nav.open{display:grid}.main-nav a{padding:10px 12px;border-radius:12px;color:var(--muted);font-size:14px}.main-nav a:hover,.main-nav a.active{background:var(--primary-soft);color:var(--primary)}
.section{padding:54px 0}.section-title{font-size:30px;line-height:1.2;margin:0 0 12px;color:var(--deep);letter-spacing:-.03em}.section-lead{margin:0 0 24px;color:var(--muted);max-width:760px}.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:700;font-size:13px;border:1px solid #D9E9FF}.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;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.22);transition:.2s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(41,128,254,.28)}.link-arrow{color:var(--primary);font-weight:800}.link-arrow:after{content:" →"}
.web3-dashboard-hero{position:relative;padding:54px 0 36px;overflow:hidden}.web3-dashboard-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 8%,rgba(41,128,254,.15),transparent 28%),linear-gradient(180deg,#fff,rgba(234,243,255,.55));z-index:-1}.hero-grid{display:grid;gap:26px;align-items:center}.hero-copy h1{font-size:40px;line-height:1.08;margin:18px 0 16px;color:var(--deep);letter-spacing:-.05em}.hero-copy p{color:var(--muted);font-size:17px;margin:0 0 22px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.security-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.security-tags span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#4B5563;font-size:13px}.hero-console{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:30px;padding:18px;box-shadow:var(--shadow)}.hero-visual{position:relative;display:grid;grid-template-columns:1fr;gap:14px}.product-frame{background:linear-gradient(180deg,#F5FAFF,#fff);border:1px solid var(--line);border-radius:28px;padding:18px;min-height:260px;display:flex;align-items:center;justify-content:center}.product-frame img{max-height:360px;object-fit:contain}.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.status-card{padding:14px;border:1px solid var(--line);border-radius:18px;background:#fff}.status-card strong{display:block;color:var(--deep);font-size:15px}.status-card span{color:var(--muted);font-size:12px}.status-dot{width:9px;height:9px;border-radius:99px;background:var(--primary);display:inline-block;margin-right:6px}
.service-index{display:grid;gap:14px}.service-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 25px rgba(17,24,39,.04);min-height:160px}.service-card h3{margin:10px 0 8px;color:var(--deep);font-size:20px}.service-card p{margin:0 0 14px;color:var(--muted);font-size:15px}.tag-line{width:42px;height:4px;border-radius:99px;background:var(--primary)}
.feature-panel{border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.feature-inner{display:grid;gap:24px;padding:24px}.feature-copy h2{margin:0 0 12px;font-size:28px;line-height:1.18;color:var(--deep)}.feature-copy p{margin:0 0 16px;color:var(--muted)}.feature-list{display:grid;gap:10px;margin:16px 0 18px;padding:0;list-style:none}.feature-list li{display:flex;gap:10px;align-items:flex-start;color:#374151}.feature-list li:before{content:"";width:8px;height:8px;margin-top:10px;border-radius:99px;background:var(--primary);flex:0 0 auto}.feature-media{background:var(--primary-light);border-radius:26px;border:1px solid #DDEBFF;display:flex;align-items:center;justify-content:center;min-height:260px;padding:20px}.digital-assets-hub .feature-media{background:linear-gradient(135deg,#EAF3FF,#fff)}.web3-ecosystem-section .feature-inner:nth-child(1){background:linear-gradient(180deg,#fff,#F8FBFF)}.hardware-wallet-section{background:linear-gradient(180deg,#F5FAFF,#fff)}.hardware-wallet-section .feature-panel{background:#F9FBFE}.swap-service-section .feature-media{background:#F7FAFD}.privacy-boundary-section{background:#fff}.boundary-grid{display:grid;gap:16px}.boundary-card{background:linear-gradient(180deg,#fff,#F7FAFD);border:1px solid var(--line);border-radius:22px;padding:20px}.boundary-card h3{margin:8px 0;color:var(--deep)}.boundary-card p{margin:0;color:var(--muted)}
.submit-chain-section{background:linear-gradient(180deg,#F7FAFD,#fff)}.submit-layout,.developer-layout{display:grid;gap:18px}.access-card,.doc-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 10px 28px rgba(17,24,39,.05)}.access-card h3,.doc-card h3{margin:0 0 10px;color:var(--deep)}.access-card p,.doc-card p{margin:0;color:var(--muted)}.developer-center-section .code-panel{background:#F8FBFF;border:1px solid #D9E9FF;border-radius:24px;padding:20px;color:#1F2937;font-family:"SFMono-Regular",Consolas,monospace;overflow:auto}.code-panel span{color:var(--primary)}
.process-steps{display:grid;gap:14px;counter-reset:step}.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px 20px 20px 74px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:38px;height:38px;border-radius:14px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}.step-card h3{margin:0 0 8px}.step-card p{margin:0 0 10px;color:var(--muted)}
.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 h3{margin:0 0 8px;font-size:18px}.risk-card p{margin:0 0 8px;color:var(--muted)}.risk-card small{display:block;color:#374151;margin-bottom:8px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.faq-item h3{margin:0 0 8px;color:var(--deep);font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{padding:62px 0;text-align:center;background:linear-gradient(135deg,#EAF3FF,#F7FAFD 58%,#fff)}.cta-box{border:1px solid #D9E9FF;border-radius:30px;background:rgba(255,255,255,.78);padding:30px;box-shadow:var(--shadow)}.cta-box h2{margin:0 0 10px;font-size:30px;color:var(--deep)}.cta-box p{margin:0 auto 22px;color:var(--muted);max-width:680px}
.page-hero{padding:52px 0 28px;background:linear-gradient(180deg,#fff,#F5FAFF);border-bottom:1px solid var(--line)}.page-hero h1{font-size:36px;line-height:1.14;margin:16px 0 12px;color:var(--deep);letter-spacing:-.04em}.page-hero p{color:var(--muted);margin:0;max-width:760px}.content-layout{display:grid;gap:22px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:var(--shadow)}.article-card h2{margin:0 0 12px;color:var(--deep);font-size:24px}.article-card h3{margin:20px 0 8px;color:var(--deep)}.article-card p{color:var(--muted);margin:0 0 14px}.check-list{display:grid;gap:10px;margin:16px 0;padding:0;list-style:none}.check-list li{background:var(--primary-light);border:1px solid #D9E9FF;border-radius:16px;padding:12px 14px;color:#374151}.side-panel{background:#F8FBFF;border:1px solid #D9E9FF;border-radius:24px;padding:20px}.side-panel h2{font-size:20px;margin:0 0 12px}.side-panel a{display:block;padding:11px 0;border-top:1px solid #E5EEF9;color:var(--primary);font-weight:700}.download-line{margin-top:24px}.mini-grid{display:grid;gap:14px}.mini-card{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fff}.mini-card strong{display:block;color:var(--deep);margin-bottom:6px}.mini-card span{color:var(--muted);font-size:14px}.download-steps{display:grid;gap:14px;margin-top:22px}.download-steps .step-card{padding-left:74px}.about-values{display:grid;gap:14px}.about-values .boundary-card{background:#fff}.site-footer{background:#111827;color:#D1D5DB;margin-top:0}.footer-grid{display:grid;gap:24px;padding:42px 0}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:10px}.footer-brand img{width:34px;height:34px}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer p{margin:0;color:#9CA3AF}.site-footer a{display:block;color:#D1D5DB;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;color:#9CA3AF;font-size:14px}
@media (min-width:640px){.service-index{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.mini-grid{grid-template-columns:repeat(2,1fr)}.boundary-grid{grid-template-columns:repeat(3,1fr)}}
@media (min-width:900px){.nav-toggle{display:none}.main-nav{position:static;display:flex;background:transparent;border:0;box-shadow:none;padding:0;gap:4px;align-items:center}.main-nav a{font-size:14px}.web3-dashboard-hero{padding:78px 0 52px}.hero-grid{grid-template-columns:minmax(0,1fr) minmax(420px,.95fr);gap:42px}.hero-copy h1{font-size:60px}.service-index{grid-template-columns:repeat(4,1fr)}.service-card:nth-child(1),.service-card:nth-child(7){grid-column:span 2}.feature-inner{grid-template-columns:1fr 1fr;align-items:center;padding:36px}.feature-panel.reverse .feature-copy{order:2}.feature-panel.reverse .feature-media{order:1}.submit-layout{grid-template-columns:1.1fr .9fr}.developer-layout{grid-template-columns:.95fr 1.05fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 310px}.page-hero h1{font-size:48px}.footer-grid{grid-template-columns:2fr 1fr 1fr}.about-values{grid-template-columns:repeat(3,1fr)}}
@media (max-width:380px){.container{width:min(100% - 24px,1120px)}.hero-copy h1,.page-hero h1{font-size:32px}.section-title{font-size:26px}.status-grid{grid-template-columns:1fr}.download-btn{width:100%}.main-nav{grid-template-columns:1fr}}