:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-line:#CFE2FF;
  --bg:#F6F8FC;
  --panel:#FFFFFF;
  --muted:#667085;
  --text:#202939;
  --heading:#111827;
  --line:#E6EAF0;
  --soft:#F2F5F9;
  --deep:#344054;
  --radius:24px;
  --radius-lg:30px;
  --shadow:0 16px 42px rgba(32,41,57,.08);
}
*{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%,#f8fbff 40%,#f6f8fc 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}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:18px}
.brand,.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--heading);letter-spacing:.02em}
.brand-logo{width:38px;height:38px;object-fit:contain;border-radius:12px}.brand-text{font-size:20px}
.site-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}
.site-nav a{display:block;padding:12px 14px;border-radius:14px;color:var(--deep);font-size:15px}.site-nav a:hover,.site-nav .nav-download{background:var(--primary-soft);color:var(--primary)}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}.nav-toggle-label{display:flex;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:14px;background:#fff}.nav-toggle-label span{width:18px;height:2px;background:var(--heading);border-radius:3px}.nav-toggle:checked~.site-nav{display:block}
main{display:block}.section{padding:66px 0}.section-soft{background:var(--bg)}.section-title{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:0 0 14px;color:var(--heading);letter-spacing:-.03em}.section-lead{margin:0 auto 30px;color:var(--muted);max-width:760px}.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--primary-line);background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700;margin-bottom:14px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;border-radius:16px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.25);border:0;transition:transform .2s ease,box-shadow .2s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(41,128,254,.30)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.panel-pad{padding:24px}.muted{color:var(--muted)}.link-arrow{display:inline-flex;align-items:center;color:var(--primary);font-weight:800;margin-top:10px}.link-arrow:after{content:"→";margin-left:6px}.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.tag{display:inline-flex;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--deep);font-size:13px}.tag.blue{background:var(--primary-soft);border-color:var(--primary-line);color:var(--primary)}
.web3-dashboard-hero{padding:42px 0 68px;position:relative}.web3-dashboard-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(41,128,254,.16),transparent 34%),radial-gradient(circle at 0% 10%,rgba(41,128,254,.10),transparent 28%);pointer-events:none}.hero-grid{position:relative;display:grid;gap:26px;align-items:center}.hero-copy h1{font-size:clamp(38px,8vw,72px);line-height:1.04;margin:0 0 18px;color:var(--heading);letter-spacing:-.055em}.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 22px;max-width:680px}.security-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.security-tags span{padding:8px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--deep)}.hero-visual{padding:16px;border-radius:var(--radius-lg);background:linear-gradient(145deg,#fff,#edf5ff);border:1px solid var(--line);box-shadow:var(--shadow)}.device-panel{display:grid;gap:14px}.hero-img-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:18px;min-height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden}.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.status-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.status-card strong{display:block;color:var(--heading);font-size:15px}.status-card span{font-size:12px;color:var(--muted)}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);display:inline-block;margin-right:6px}
.service-index{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 10px 28px rgba(32,41,57,.05)}.service-card h3{margin:12px 0 8px;color:var(--heading);font-size:20px}.service-card p{margin:0;color:var(--muted);font-size:15px}.card-number{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);font-weight:900}
.digital-assets-hub,.web3-ecosystem-section,.hardware-wallet-section,.swap-service-section,.submit-chain-section,.developer-center-section{display:grid;gap:26px;align-items:center}.feature-card{padding:24px}.feature-card h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:0 0 14px;color:var(--heading)}.feature-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.feature-list li{position:relative;padding-left:26px;color:var(--deep)}.feature-list li:before{content:"";position:absolute;left:0;top:.75em;width:10px;height:10px;border-radius:4px;background:var(--primary)}.image-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow)}.image-card.soft{background:linear-gradient(145deg,#f7fbff,#fff)}
.privacy-boundary-section{display:grid;gap:18px}.boundary-panel{background:#fff;border:1px solid var(--primary-line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.boundary-grid{display:grid;gap:14px}.boundary-item{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:18px}.boundary-item strong{color:var(--heading)}
.eco-checklist{display:grid;gap:12px;margin-top:18px}.eco-checklist div{padding:16px;border:1px solid var(--line);background:#fff;border-radius:18px}.code-panel{background:#f8fbff;border:1px solid var(--primary-line);border-radius:24px;padding:20px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;color:#1e3a5f;overflow:hidden}.code-line{display:block;padding:8px 0;border-bottom:1px solid rgba(41,128,254,.12)}.code-line:last-child{border-bottom:0}.process-steps{display:grid;gap:14px}.step-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.step-card .num{display:inline-flex;width:38px;height:38px;border-radius:14px;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-weight:900;margin-bottom:12px}.step-card h3{margin:0 0 8px;color:var(--heading)}.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;color:var(--heading);font-size:18px}.risk-card p{margin:4px 0;color:var(--muted);font-size:15px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.faq-item h3{margin:0 0 8px;color:var(--heading);font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{margin:58px auto 0;padding:34px 20px;text-align:center;border-radius:30px;background:linear-gradient(135deg,#eef6ff,#fff);border:1px solid var(--primary-line)}.cta-section h2{margin:0 0 10px;color:var(--heading);font-size:clamp(28px,4vw,42px)}.cta-section p{margin:0 auto 22px;max-width:680px;color:var(--muted)}
.page-hero{padding:54px 0 26px}.page-hero-inner{display:grid;gap:16px}.page-hero h1{font-size:clamp(34px,6vw,56px);line-height:1.08;margin:0;color:var(--heading);letter-spacing:-.045em}.page-hero p{margin:0;color:var(--muted);font-size:17px;max-width:820px}.content-layout{display:grid;gap:24px;align-items:start}.article-panel{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}.article-panel h2{color:var(--heading);font-size:26px;margin:6px 0 12px}.article-panel h3{color:var(--heading);font-size:20px;margin:22px 0 8px}.article-panel p{color:var(--deep);margin:0 0 14px}.article-panel ul,.article-panel ol{padding-left:22px;color:var(--deep)}.side-panel{background:linear-gradient(180deg,#fff,#f7fbff);border:1px solid var(--line);border-radius:24px;padding:20px;position:sticky;top:94px}.side-panel h3{margin:0 0 12px;color:var(--heading)}.side-panel a{display:block;padding:10px 0;color:var(--primary);font-weight:700;border-bottom:1px solid var(--line)}.side-panel a:last-child{border-bottom:0}.note-box{border:1px solid var(--primary-line);background:var(--primary-soft);border-radius:20px;padding:18px;margin:18px 0;color:#24466f}.check-grid{display:grid;gap:12px;margin:18px 0}.check-item{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:16px}.check-item strong{display:block;color:var(--heading);margin-bottom:4px}.download-inline{margin-top:24px}.about-grid,.values-grid{display:grid;gap:16px}.value-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.value-card h3{margin:0 0 8px;color:var(--heading)}.download-steps{counter-reset:step;display:grid;gap:14px}.download-steps li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;position:relative}.download-steps li:before{counter-increment:step;content:counter(step);display:inline-flex;width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;align-items:center;justify-content:center;font-weight:900;margin-right:10px}.site-footer{margin-top:72px;padding:46px 0 22px;background:#fff;border-top:1px solid var(--line)}.footer-grid{display:grid;gap:26px}.footer-brand img{width:34px;height:34px;border-radius:10px}.site-footer p{color:var(--muted);margin:12px 0 0}.site-footer h3{margin:0 0 10px;color:var(--heading);font-size:16px}.site-footer a{display:block;color:var(--muted);padding:4px 0}.site-footer a:hover{color:var(--primary)}.footer-bottom{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:14px}.center{text-align:center}.spacer-sm{height:12px}
@media (min-width:640px){.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)}.values-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.site-nav{display:flex;position:static;align-items:center;gap:4px;background:transparent;border:0;border-radius:0;padding:0;box-shadow:none}.site-nav a{padding:9px 10px;font-size:14px}.nav-toggle-label{display:none}.hero-grid{grid-template-columns:1.02fr .98fr}.service-index{grid-template-columns:repeat(4,1fr)}.service-card:nth-child(1),.service-card:nth-child(7){grid-column:span 2}.digital-assets-hub,.hardware-wallet-section,.swap-service-section,.submit-chain-section,.developer-center-section{grid-template-columns:1fr 1fr}.web3-ecosystem-section{grid-template-columns:1fr 1fr}.hardware-wallet-section .image-card{order:-1}.privacy-boundary-section{grid-template-columns:1fr 1.2fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 300px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}.article-panel{padding:34px}.about-grid{grid-template-columns:1.15fr .85fr}.page-hero{padding:72px 0 32px}}
@media (min-width:1120px){.site-nav a{padding:10px 12px}.web3-dashboard-hero{padding-top:64px}.hero-img-card{min-height:390px}.feature-card{padding:34px}.section{padding:82px 0}}
@media (max-width:480px){.container{width:min(100% - 24px,1120px)}.status-grid{grid-template-columns:1fr}.hero-visual{padding:10px}.hero-img-card{min-height:210px}.download-btn{width:100%;padding-left:18px;padding-right:18px}.section{padding:48px 0}.service-card,.article-panel,.side-panel,.panel-pad{padding:18px}.site-nav{left:12px;right:12px}.security-tags span,.tag{font-size:12px}.page-hero{padding-top:42px}}