:root{
  --primary:#2980FE;
  --primary-soft:#ECF4FF;
  --primary-light:#F5F9FF;
  --white:#ffffff;
  --text:#1f2937;
  --muted:#667085;
  --line:#e5eaf1;
  --soft:#f6f8fb;
  --soft2:#eef5ff;
  --dark:#111827;
  --radius:24px;
  --shadow:0 18px 48px rgba(31,41,55,.08);
}
*{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%,#f7fbff 42%,#fff 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:20;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{width:min(1180px,calc(100% - 28px));height:72px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--dark);letter-spacing:.02em;white-space:nowrap}
.logo img{width:36px;height:36px;object-fit:contain;border-radius:10px}
.nav-toggle{display:none}
.mobile-nav-toggle{display:flex;flex-direction:column;gap:5px;padding:10px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer}
.mobile-nav-toggle span{display:block;width:22px;height:2px;background:var(--dark);border-radius:4px}
.desktop-nav{position:absolute;top:72px;left:14px;right:14px;display:none;flex-direction:column;padding:14px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.desktop-nav a{padding:10px 12px;border-radius:14px;color:#344054;font-size:15px}
.desktop-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.nav-toggle:checked ~ .desktop-nav{display:flex}
.hero-wrap{position:relative;overflow:hidden;padding:44px 0 28px;background:radial-gradient(circle at 85% 12%,rgba(41,128,254,.18),transparent 28%),linear-gradient(180deg,#fff,#f4f8ff)}
.gradient-orb{position:absolute;border-radius:999px;filter:blur(18px);opacity:.55;pointer-events:none}.orb-a{width:220px;height:220px;right:-80px;top:60px;background:#d8eaff}.orb-b{width:180px;height:180px;left:-80px;bottom:40px;background:#edf6ff}
.web3-hero{position:relative;display:grid;grid-template-columns:1fr;gap:34px;align-items:center}.hero-copy{max-width:680px}.eyebrow,.category-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:14px}.hero-copy h1,.page-hero h1{margin:18px 0 14px;line-height:1.15;color:var(--dark);font-size:clamp(34px,7vw,68px);letter-spacing:-.04em}.hero-copy p{margin:0 0 22px;color:var(--muted);font-size:17px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;box-shadow:0 14px 30px rgba(41,128,254,.28);transition:.2s ease;border:0;cursor:pointer}.download-btn:hover{transform:translateY(-1px);box-shadow:0 18px 36px rgba(41,128,254,.34)}.security-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.security-tags span{padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:999px;color:#42526e;font-size:14px}.hero-visual{position:relative;min-height:360px;display:flex;align-items:center;justify-content:center;padding:20px;border-radius:32px;background:linear-gradient(145deg,#fff,#eef6ff);border:1px solid rgba(41,128,254,.12);box-shadow:var(--shadow)}.hero-visual img{max-height:430px;object-fit:contain;filter:drop-shadow(0 28px 38px rgba(31,41,55,.12))}.floating-label{position:absolute;padding:9px 12px;border-radius:16px;background:rgba(255,255,255,.9);border:1px solid var(--line);box-shadow:0 12px 28px rgba(31,41,55,.08);font-weight:800;color:#1f2937;font-size:13px}.fl-1{left:18px;top:24px}.fl-2{right:18px;top:64px}.fl-3{left:22px;bottom:54px}.fl-4{right:24px;bottom:26px}
.section{padding:44px 0}.section-head{margin-bottom:22px;max-width:760px}.section-kicker{display:inline-block;color:var(--primary);font-weight:800;letter-spacing:.08em;font-size:13px;text-transform:uppercase}.section h2{margin:10px 0 10px;color:var(--dark);font-size:clamp(26px,4vw,44px);line-height:1.2;letter-spacing:-.03em}.section-head p,.feature-copy p,.page-hero p,.article-card p{color:var(--muted);margin:0}.ecosystem-nav{display:grid;grid-template-columns:1fr;gap:14px}.ecosystem-card{padding:20px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 12px 28px rgba(31,41,55,.04);transition:.2s ease}.ecosystem-card:hover{transform:translateY(-2px);border-color:rgba(41,128,254,.35);box-shadow:var(--shadow)}.ecosystem-card .tag{display:inline-block;margin-bottom:12px;padding:5px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:800}.ecosystem-card h3{margin:0 0 8px;color:var(--dark);font-size:20px}.ecosystem-card p{margin:0 0 12px;color:var(--muted);font-size:15px}.text-link{color:var(--primary);font-weight:800}.feature-section{padding:52px 0}.feature-card{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow)}.feature-card.alt{background:linear-gradient(135deg,#f6faff,#fff)}.feature-media{border-radius:26px;background:linear-gradient(160deg,#f8fbff,#edf5ff);padding:18px;display:flex;align-items:center;justify-content:center;min-height:280px}.feature-media img{max-height:330px;object-fit:contain}.feature-copy h2{margin:8px 0 12px;color:var(--dark);font-size:clamp(25px,4vw,40px);line-height:1.22}.bullet-list{list-style:none;padding:0;margin:18px 0;display:grid;gap:10px}.bullet-list li{position:relative;padding-left:25px;color:#344054}.bullet-list li:before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--primary)}.privacy-section,.submit-chain-section,.developer-center-section{background:linear-gradient(180deg,#f8fbff,#fff)}.wide-panel{padding:26px;border-radius:30px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}.two-col{display:grid;grid-template-columns:1fr;gap:20px}.info-card{padding:20px;border:1px solid var(--line);border-radius:22px;background:#fff}.info-card h3{margin:0 0 8px;color:var(--dark)}.info-card p{margin:0;color:var(--muted)}.tech-panel{padding:20px;border-radius:24px;background:#111827;color:#e5eefb;overflow:hidden}.tech-panel pre{margin:0;white-space:pre-wrap;font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;line-height:1.7}.tech-panel .blue{color:#7db3ff}.process-steps{display:grid;grid-template-columns:1fr;gap:14px}.step-card{position:relative;padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line)}.step-num{width:38px;height:38px;border-radius:14px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:12px}.step-card h3{margin:0 0 8px}.step-card p{margin:0 0 10px;color:var(--muted)}.risk-grid{display:grid;grid-template-columns:1fr;gap:14px}.risk-card{padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary)}.risk-card h3{margin:0 0 8px}.risk-card p{margin:0 0 8px;color:var(--muted)}.faq-list{display:grid;gap:12px}.faq-item{padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line)}.faq-item h3{margin:0 0 8px;color:var(--dark);font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta-section{padding:54px 0 70px}.cta-panel{text-align:center;padding:34px 22px;border-radius:32px;background:linear-gradient(135deg,#edf5ff,#fff);border:1px solid rgba(41,128,254,.14);box-shadow:var(--shadow)}.cta-panel h2{margin:0 0 10px;font-size:clamp(26px,4vw,42px);line-height:1.2}.cta-panel p{margin:0 auto 20px;max-width:680px;color:var(--muted)}.page-hero{padding:44px 0;background:radial-gradient(circle at 80% 0,rgba(41,128,254,.16),transparent 28%),linear-gradient(180deg,#fff,#f6faff)}.page-layout{display:grid;grid-template-columns:1fr;gap:22px;padding:42px 0}.article-card{padding:24px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 28px rgba(31,41,55,.04)}.article-card h2{margin:0 0 12px;font-size:28px;color:var(--dark)}.article-card h3{margin:20px 0 8px;color:var(--dark)}.check-grid,.category-grid{display:grid;grid-template-columns:1fr;gap:14px;margin:18px 0}.check-item{padding:16px;border-radius:18px;background:var(--primary-light);border:1px solid rgba(41,128,254,.12)}.check-item strong{display:block;color:var(--dark);margin-bottom:4px}.check-item span{color:var(--muted);font-size:15px}.side-panel{padding:22px;border-radius:26px;background:linear-gradient(180deg,#f5f9ff,#fff);border:1px solid var(--line);height:max-content}.side-panel h2,.side-panel h3{margin-top:0}.side-panel a{display:block;padding:10px 0;color:var(--primary);font-weight:800;border-bottom:1px solid var(--line)}.download-zone{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}.download-page .download-zone{text-align:left}.site-footer{background:#0f172a;color:#cbd5e1;padding:42px 0 0;margin-top:34px}.footer-grid{display:grid;grid-template-columns:1fr;gap:24px}.footer-logo{font-weight:900;color:#fff;margin-bottom:10px}.site-footer p{margin:0;color:#94a3b8}.site-footer h3{margin:0 0 10px;color:#fff;font-size:16px}.site-footer a{display:block;color:#cbd5e1;padding:5px 0}.site-footer a:hover{color:#fff}.footer-bottom{margin-top:28px;padding:18px;text-align:center;border-top:1px solid rgba(255,255,255,.1);color:#94a3b8;font-size:14px}.web3-section .feature-card{background:linear-gradient(135deg,#fff,#f7fbff)}.hardware-wallet-section{background:#f7f9fc}.digital-assets-section .feature-card{border-color:rgba(41,128,254,.18)}.swap-section{background:#fbfdff}.safety-panel{padding:22px;border-radius:26px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
@media (min-width:640px){.ecosystem-nav{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.check-grid,.category-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.mobile-nav-toggle{display:none}.desktop-nav{position:static;display:flex!important;flex-direction:row;align-items:center;justify-content:flex-end;padding:0;background:transparent;border:0;box-shadow:none}.desktop-nav a{font-size:14px;padding:8px 9px}.header-inner{height:78px}.web3-hero{grid-template-columns:minmax(0,1.04fr) minmax(380px,.96fr);gap:46px}.hero-wrap{padding:70px 0 54px}.section{padding:72px 0}.feature-section{padding:72px 0}.feature-card{grid-template-columns:1fr 1fr;padding:34px}.feature-card.reverse .feature-media{order:2}.two-col{grid-template-columns:1.05fr .95fr}.ecosystem-nav{grid-template-columns:repeat(4,1fr)}.ecosystem-card.featured{grid-column:span 2}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 320px;align-items:start}.page-hero{padding:68px 0}.article-card{padding:34px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}.download-page .page-layout{grid-template-columns:1fr}.download-page .article-card{max-width:920px;margin:0 auto}.desktop-nav a:hover{background:var(--primary-soft)}}
@media (min-width:1120px){.desktop-nav a{padding:8px 11px}.hero-copy p{font-size:18px}.ecosystem-nav{grid-template-columns:repeat(7,1fr)}.ecosystem-card.featured{grid-column:auto}.process-steps{grid-template-columns:repeat(6,1fr)}}