:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-lighter:#F4F8FF;
  --text:#1f2937;
  --muted:#667085;
  --light:#f5f7fb;
  --line:#e5eaf2;
  --white:#ffffff;
  --shadow:0 18px 50px rgba(41,128,254,.10);
  --shadow-soft:0 10px 30px rgba(16,24,40,.08);
  --radius:26px;
}
*{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%,#f7faff 46%,#fff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,234,242,.85)}
.nav-wrap{max-width:1180px;margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.01em;font-size:18px;color:#101828}.logo{width:38px;height:38px;object-fit:contain;border-radius:12px}.nav-toggle{border:1px solid var(--line);background:var(--white);width:42px;height:42px;border-radius:14px;font-size:20px;color:var(--text)}
.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-soft)}
.site-nav.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px}.site-nav a{font-size:14px;color:#344054;padding:11px 12px;border-radius:13px}.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.content-container,.section-wrap{max-width:1180px;margin:0 auto;padding:0 20px}.section{padding:72px 0}.section-head{margin-bottom:28px}.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;color:var(--primary);background:var(--primary-soft);border:1px solid rgba(41,128,254,.16);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:700}.section-head h2,.section-title{font-size:30px;line-height:1.18;margin:12px 0;color:#101828}.section-head p,.lead{color:var(--muted);max-width:760px;margin:0}.muted{color:var(--muted)}
.web3-hero{position:relative;overflow:hidden;padding:72px 0 42px;background:radial-gradient(circle at 12% 18%,rgba(41,128,254,.16),transparent 28%),radial-gradient(circle at 80% 10%,rgba(41,128,254,.12),transparent 26%),linear-gradient(180deg,#fff 0%,#f5f9ff 100%)}
.web3-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(41,128,254,.06) 1px,transparent 1px),linear-gradient(180deg,rgba(41,128,254,.06) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 74%)}
.hero-grid{position:relative;display:grid;gap:34px;align-items:center}.hero-copy h1{font-size:42px;line-height:1.08;margin:16px 0;color:#0f172a;letter-spacing:-.04em}.hero-copy p{font-size:17px;color:#536174;margin:0 0 22px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.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;border:1px solid var(--primary);box-shadow:0 14px 30px rgba(41,128,254,.22);transition:.2s ease;cursor:pointer}.download-btn:hover{transform:translateY(-1px);box-shadow:0 18px 38px rgba(41,128,254,.26)}.safe-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.safe-tags span{font-size:13px;color:#344054;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px}.hero-visual{position:relative;min-height:400px;border-radius:32px;background:linear-gradient(145deg,#fff,#edf5ff);border:1px solid rgba(41,128,254,.14);box-shadow:var(--shadow);padding:26px;display:flex;align-items:center;justify-content:center}.hero-visual img{max-height:420px;object-fit:contain;filter:drop-shadow(0 24px 34px rgba(16,24,40,.14))}.float-tag{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow-soft);border-radius:18px;padding:12px 14px;font-size:13px;color:#344054;font-weight:700}.float-tag:before{content:"";display:inline-block;width:8px;height:8px;background:var(--primary);border-radius:999px;margin-right:8px}.tag-a{top:28px;left:24px}.tag-b{top:94px;right:22px}.tag-c{bottom:98px;left:20px}.tag-d{bottom:28px;right:30px}
.ecosystem-nav,.category-grid{display:grid;gap:14px}.ecosystem-card,.feature-card,.risk-card,.faq-item,.content-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 28px rgba(16,24,40,.04)}.ecosystem-card{padding:20px;position:relative;overflow:hidden}.ecosystem-card:after{content:"";position:absolute;right:-30px;top:-35px;width:90px;height:90px;background:var(--primary-soft);border-radius:50%}.ecosystem-card strong{display:block;font-size:18px;margin-bottom:6px;color:#101828}.ecosystem-card p{margin:0 0 12px;color:var(--muted);font-size:14px}.text-link{color:var(--primary);font-weight:800;display:inline-flex;align-items:center;gap:4px}.text-link:after{content:"→"}
.service-split{display:grid;gap:26px;align-items:center}.service-card{padding:28px;border-radius:32px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}.service-card h2{font-size:29px;line-height:1.2;margin:10px 0}.service-card p{color:var(--muted);margin:0 0 16px}.service-media{border-radius:32px;background:linear-gradient(145deg,#eef6ff,#fff);border:1px solid rgba(41,128,254,.14);padding:24px;box-shadow:var(--shadow);min-height:280px;display:flex;align-items:center;justify-content:center}.service-media img{max-height:360px;object-fit:contain}.web3-section .service-card{background:linear-gradient(145deg,#fff,#f8fbff)}.hardware-wallet-section{background:linear-gradient(180deg,#f4f8ff,#fff)}.hardware-wallet-section .service-media{background:#fff}.digital-assets-section .service-card{border-left:5px solid var(--primary)}.swap-section{background:#fff}.swap-section .service-card{background:linear-gradient(145deg,#f9fbff,#fff)}.privacy-section,.submit-chain-section,.developer-center-section{padding:72px 0}.info-grid{display:grid;gap:16px}.info-box{padding:22px;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 22px rgba(16,24,40,.04)}.info-box h3{margin:0 0 8px;color:#101828}.info-box p,.info-box li{color:var(--muted)}.developer-panel{background:#0f172a;color:#f8fafc;border-radius:30px;padding:26px;overflow:hidden;box-shadow:0 18px 46px rgba(15,23,42,.18)}.developer-panel code{display:block;color:#dbeafe;font-family:"SFMono-Regular",Consolas,monospace;line-height:1.9;white-space:pre-wrap}.developer-panel .code-dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:#60a5fa;margin-right:6px}.process-steps{display:grid;gap:14px}.step-card{padding:22px}.step-no{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:14px;font-weight:800;margin-bottom:12px}.step-card h3{margin:0 0 8px}.step-card p{color:var(--muted);margin:0 0 10px}.risk-grid{display:grid;gap:14px}.risk-card{padding:20px;border-top:4px solid var(--primary)}.risk-card h3{margin:0 0 8px}.risk-card p{margin:0 0 10px;color:var(--muted)}.risk-card span{display:block;font-size:14px;color:#475467;background:var(--primary-lighter);border-radius:14px;padding:10px 12px;margin-bottom:10px}.faq-list{display:grid;gap:12px}.faq-item{padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{margin:72px auto;max-width:1180px;padding:48px 24px;border-radius:34px;background:linear-gradient(135deg,#eef6ff,#fff);border:1px solid rgba(41,128,254,.16);text-align:center;box-shadow:var(--shadow)}.cta-section h2{font-size:30px;margin:0 0 10px}.cta-section p{max-width:700px;margin:0 auto 22px;color:var(--muted)}
.page-hero{padding:60px 0 24px;background:linear-gradient(180deg,#fff,#f4f8ff)}.page-hero h1{font-size:36px;line-height:1.14;margin:14px 0 12px;color:#101828}.page-hero p{color:var(--muted);max-width:820px}.page-layout{display:grid;gap:24px;align-items:start;padding:42px 20px 80px;max-width:1180px;margin:0 auto}.article-body{display:grid;gap:18px}.article-body p{margin:0;color:#475467}.aside-panel{background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--shadow-soft)}.aside-panel h3{margin-top:0}.check-list{padding:0;margin:0;list-style:none;display:grid;gap:10px}.check-list li{padding:12px 12px 12px 38px;border-radius:16px;background:var(--primary-lighter);color:#475467;position:relative}.check-list li:before{content:"✓";position:absolute;left:14px;color:var(--primary);font-weight:800}.article-actions{margin-top:8px}.download-page .download-btn{margin-top:4px}.site-footer{background:#f3f6fb;border-top:1px solid var(--line);padding:46px 20px 22px}.footer-grid{max-width:1180px;margin:0 auto;display:grid;gap:24px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}.footer-brand img{width:34px;height:34px}.site-footer p{color:var(--muted);margin:0}.site-footer h3{font-size:15px;margin:0 0 10px}.site-footer a{display:block;color:#536174;margin:7px 0;font-size:14px}.site-footer a:hover{color:var(--primary)}.footer-bottom{max-width:1180px;margin:28px auto 0;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:#667085}
@media (min-width:640px){.ecosystem-nav{grid-template-columns:repeat(2,1fr)}.info-grid,.risk-grid,.process-steps,.category-grid{grid-template-columns:repeat(2,1fr)}.hero-copy h1{font-size:54px}.page-hero h1{font-size:44px}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{display:flex;position:static;align-items:center;gap:4px;padding:0;border:0;box-shadow:none;background:transparent}.site-nav a{white-space:nowrap}.hero-grid{grid-template-columns:1fr 1fr}.web3-hero{padding:96px 0 64px}.ecosystem-nav{grid-template-columns:repeat(4,1fr)}.ecosystem-card:nth-child(7){grid-column:span 2}.service-split{grid-template-columns:1fr 1fr}.hardware-wallet-section .service-media,.swap-section .service-media{order:-1}.info-grid{grid-template-columns:repeat(3,1fr)}.privacy-section .info-grid{grid-template-columns:1.15fr .85fr}.submit-chain-section .info-grid,.developer-center-section .info-grid{grid-template-columns:1fr 1fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 330px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}.section-head h2,.section-title{font-size:40px}.service-card h2{font-size:38px}}
@media (min-width:1180px){.hero-copy h1{font-size:64px}.content-container,.section-wrap,.nav-wrap{padding-left:0;padding-right:0}}
@media (max-width:520px){.site-nav.is-open{grid-template-columns:1fr}.hero-visual{min-height:330px;padding:18px}.float-tag{position:static;margin:8px 0;width:100%}.hero-visual{display:block}.hero-visual img{margin:0 auto 14px;max-height:260px}.download-btn{width:100%}.section{padding:52px 0}.cta-section{margin:52px 20px}.page-layout{padding-left:20px;padding-right:20px}.service-card,.service-media{border-radius:24px}.hero-copy h1{font-size:38px}}