:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-light:#F4F8FF;
  --text:#263241;
  --muted:#64748B;
  --line:#E5EAF2;
  --panel:#FFFFFF;
  --bg:#F7FAFE;
  --deep:#1F2937;
  --radius-lg:30px;
  --radius-md:22px;
  --shadow:0 20px 60px rgba(41,128,254,.10);
}
*{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(--text);background:linear-gradient(180deg,#fff 0%,#F7FAFE 45%,#fff 100%);line-height:1.72;font-size:16px;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:20;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.header-inner{width:min(1180px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:18px}
.logo-wrap{display:flex;align-items:center;gap:10px;min-width:0}.logo-img{width:38px;height:38px;object-fit:contain}.logo-text{font-weight:800;color:#182235;white-space:nowrap;letter-spacing:.02em}.site-nav{display:none;gap:4px;align-items:center}.site-nav a{font-size:14px;color:#536273;padding:10px 12px;border-radius:999px}.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:14px;width:42px;height:42px;color:var(--primary);font-size:20px}.site-nav.is-open{display:flex;position:absolute;left:16px;right:16px;top:76px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:12px}.site-nav.is-open a{padding:12px 14px}
.section{padding:70px 0}.section-soft{background:var(--bg)}.section-title{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:0 0 14px;color:#1E293B;letter-spacing:-.02em}.section-lead{color:var(--muted);max-width:760px;margin:0 0 28px}.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;background:var(--primary-soft);color:var(--primary);border:1px solid rgba(41,128,254,.18);border-radius:999px;font-size:13px;font-weight:700}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 16px 34px rgba(41,128,254,.24);transition:.22s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(41,128,254,.28)}.link-arrow{display:inline-flex;margin-top:14px;color:var(--primary);font-weight:800}.link-arrow:after{content:'→';margin-left:6px}.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.pill{padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;color:#526173;font-size:13px}.web3-dashboard-hero{padding:72px 0 54px;position:relative;overflow:hidden}.web3-dashboard-hero:before{content:'';position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(41,128,254,.16),rgba(41,128,254,0) 68%);right:-210px;top:-210px}.hero-grid{position:relative;display:grid;gap:28px;align-items:center}.hero-copy h1{font-size:clamp(38px,9vw,72px);line-height:1.05;margin:18px 0 18px;color:#142033;letter-spacing:-.04em}.hero-copy p{font-size:18px;color:var(--muted);max-width:620px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:24px}.hero-visual{border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(145deg,#fff 0%,#F1F7FF 100%);box-shadow:var(--shadow);padding:18px;position:relative}.phone-frame{background:#fff;border:1px solid var(--line);border-radius:28px;padding:14px;box-shadow:0 20px 40px rgba(15,23,42,.08)}.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.status-card{padding:14px;border-radius:18px;background:rgba(255,255,255,.86);border:1px solid var(--line)}.status-card b{display:block;color:#1F2937;font-size:14px}.status-card span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.service-index{display:grid;gap:14px}.service-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 12px 34px rgba(15,23,42,.04)}.service-card .num{width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:900;margin-bottom:14px}.service-card h3{margin:0 0 8px;font-size:20px}.service-card p{color:var(--muted);margin:0}.feature-panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow);padding:24px;display:grid;gap:24px;align-items:center}.feature-panel.alt{background:linear-gradient(135deg,#F7FAFE 0%,#fff 100%)}.feature-panel h2{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:10px 0 12px}.feature-panel p{color:var(--muted);margin:0 0 14px}.feature-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.feature-list li{display:flex;gap:10px;align-items:flex-start;color:#405066}.feature-list li:before{content:'';width:9px;height:9px;border-radius:50%;background:var(--primary);margin-top:10px;flex:0 0 auto}.feature-image{border-radius:24px;background:var(--primary-light);border:1px solid var(--line);padding:16px}.digital-assets-hub,.web3-ecosystem-section,.hardware-wallet-section,.swap-service-section{margin-top:24px}.privacy-boundary-section{border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(135deg,#fff,#F3F8FF);padding:24px;box-shadow:var(--shadow)}.boundary-grid{display:grid;gap:14px;margin-top:18px}.boundary-card{padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line)}.boundary-card h3{margin:0 0 6px}.boundary-card p{margin:0;color:var(--muted)}.submit-chain-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow)}.submit-list{display:grid;gap:12px;margin-top:18px}.submit-item{display:flex;gap:14px;border:1px solid var(--line);border-radius:18px;padding:16px;background:#FBFDFF}.submit-item strong{color:var(--primary)}.developer-center-section{display:grid;gap:18px}.code-panel{background:#152033;color:#EAF3FF;border-radius:26px;padding:22px;box-shadow:0 22px 48px rgba(15,23,42,.18);overflow:hidden}.code-line{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;padding:5px 0;color:#D6E8FF}.code-line em{color:#8EC2FF;font-style:normal}.doc-grid{display:grid;gap:12px}.doc-card{padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line)}.process-steps{display:grid;gap:14px;margin-top:26px}.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.step-card .step-no{width:36px;height:36px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:14px}.step-card h3{margin:0 0 8px}.step-card p{margin:0;color:var(--muted)}.risk-grid{display:grid;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}.risk-card h3{margin:0 0 8px}.risk-card p{margin:0 0 8px;color:var(--muted)}.faq-list{display:grid;gap:12px;margin-top:24px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{margin:64px 0 0;border-radius:var(--radius-lg);background:linear-gradient(135deg,#EDF6FF 0%,#fff 100%);border:1px solid var(--line);padding:36px 22px;text-align:center}.cta-section h2{margin:0 0 12px;font-size:clamp(26px,4vw,42px)}.cta-section p{margin:0 auto 22px;color:var(--muted);max-width:640px}.page-hero{padding:58px 0 30px;background:linear-gradient(180deg,#F5F9FF,#fff)}.page-hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;margin:14px 0;color:#142033;letter-spacing:-.03em}.page-hero p{color:var(--muted);font-size:18px;max-width:820px}.content-layout{display:grid;gap:24px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:0 12px 34px rgba(15,23,42,.04)}.article-card h2{font-size:26px;margin:0 0 12px}.article-card p{color:var(--muted);margin:0 0 16px}.side-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;position:sticky;top:96px}.side-panel h3{margin:0 0 12px}.check-list{display:grid;gap:10px;margin:16px 0 0;padding:0;list-style:none}.check-list li{background:#F8FBFF;border:1px solid var(--line);border-radius:16px;padding:12px;color:#405066}.category-grid{display:grid;gap:14px}.about-grid{display:grid;gap:18px}.mini-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.mini-card h3{margin:0 0 8px}.mini-card p{margin:0;color:var(--muted)}.download-steps{counter-reset:step;display:grid;gap:14px;margin-top:24px}.download-step{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.download-step:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary);font-weight:900;margin-bottom:10px}.site-footer{margin-top:70px;background:#172033;color:#DCE8F8}.footer-grid{display:grid;gap:24px;padding:44px 0}.site-footer p{color:#AEBBD0;margin:8px 0 0}.footer-brand{font-weight:900;font-size:20px;color:#fff}.site-footer h3{margin:0 0 12px;color:#fff}.site-footer a{display:block;color:#BFD0E7;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.10);text-align:center;color:#BFD0E7;padding:18px 16px;font-size:14px}
@media (min-width:700px){.service-index{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.boundary-grid{grid-template-columns:repeat(3,1fr)}.doc-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.about-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:980px){body{font-size:17px}.nav-toggle{display:none}.site-nav{display:flex}.hero-grid{grid-template-columns:1.05fr .95fr}.feature-panel{grid-template-columns:1fr 1fr;padding:36px}.feature-panel.reverse .feature-image{order:-1}.service-index{grid-template-columns:repeat(4,1fr)}.service-card.wide{grid-column:span 2}.risk-grid{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.developer-center-section{grid-template-columns:.92fr 1.08fr}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.6fr 1fr 1fr}.about-grid{grid-template-columns:repeat(3,1fr)}.section{padding:88px 0}.hero-visual{padding:24px}}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.header-inner{width:min(100% - 24px,1180px)}.hero-copy h1{font-size:36px}.download-btn{width:100%;padding:0 18px}.hero-actions{align-items:stretch}.status-grid{grid-template-columns:1fr}.service-index{grid-template-columns:1fr}.article-card,.feature-panel,.privacy-boundary-section,.submit-chain-section{padding:18px;border-radius:24px}.page-hero{padding:42px 0 22px}.section{padding:52px 0}}