:root{
  --primary:#2980FE;
  --primary-dark:#1766d6;
  --ink:#182033;
  --text:#344056;
  --muted:#66758c;
  --line:#dbe5f0;
  --soft:#f5f8fc;
  --soft-blue:#eef6ff;
  --white:#ffffff;
  --radius:24px;
  --shadow:0 18px 45px rgba(34,79,135,.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%,#f8fbff 40%,#fff 100%);line-height:1.72;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{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);letter-spacing:.2px}.logo{width:40px;height:40px;border-radius:12px;object-fit:cover}
.nav-toggle{border:1px solid var(--line);background:var(--white);border-radius:14px;padding:8px 12px;color:var(--ink);font-size:20px;display:inline-flex}.site-nav{display:none;position:absolute;left:16px;right:16px;top:70px;flex-direction:column;padding:14px;background:var(--white);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.site-nav a{padding:10px 12px;border-radius:12px;color:#41506a;font-weight:650}.site-nav a:hover{background:var(--soft-blue);color:var(--primary)}
.section{padding:56px 0}.section-tight{padding:34px 0}.eyebrow,.badge{display:inline-flex;align-items:center;gap:6px;background:var(--soft-blue);color:var(--primary);border:1px solid #d7eaff;border-radius:999px;padding:6px 12px;font-weight:750;font-size:14px}.section-title{font-size:clamp(28px,4vw,46px);line-height:1.18;color:var(--ink);margin:14px 0 14px}.lead{font-size:18px;color:var(--muted);max-width:780px}.muted{color:var(--muted)}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 22px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.24);border:0;transition:.2s}.download-btn:hover{transform:translateY(-1px);background:var(--primary-dark)}
.link-more{color:var(--primary);font-weight:800}.chip-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#526179;font-weight:700;font-size:14px}
.web3-hero{padding:58px 0 46px;position:relative;overflow:hidden}.web3-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 10%,rgba(41,128,254,.18),transparent 34%),radial-gradient(circle at 10% 90%,rgba(41,128,254,.10),transparent 36%);pointer-events:none}.hero-grid{position:relative;display:grid;gap:30px;align-items:center}.hero-copy h1{font-size:clamp(38px,7vw,68px);line-height:1.08;letter-spacing:-.04em;color:var(--ink);margin:16px 0}.hero-copy p{font-size:18px;color:#4f5d74;max-width:680px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:24px}.hero-panel{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:32px;padding:18px;box-shadow:var(--shadow);position:relative}.hero-panel img{border-radius:24px;background:var(--soft)}.floating-tags{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.float-tag{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;color:#43536c;font-weight:750}.float-tag b{display:block;color:var(--primary);font-size:13px;margin-bottom:3px}
.ecosystem-nav,.service-index{display:grid;gap:16px}.ecosystem-card,.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 30px rgba(48,81,122,.06)}.ecosystem-card .num{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:10px;background:var(--soft-blue);color:var(--primary);font-weight:900}.ecosystem-card h3,.service-card h3{margin:14px 0 8px;color:var(--ink);font-size:22px}.ecosystem-card p,.service-card p{margin:0 0 14px;color:var(--muted)}
.feature-section{padding:56px 0}.feature-card{display:grid;gap:26px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:32px;padding:24px;box-shadow:var(--shadow)}.feature-card.alt,.hardware-wallet-section .feature-card{background:linear-gradient(135deg,#f7fbff,#fff)}.feature-card img{border-radius:26px;border:1px solid var(--line);background:var(--soft)}.feature-list{display:grid;gap:12px;margin:18px 0}.feature-list div{padding:12px 14px;border:1px solid var(--line);background:var(--soft);border-radius:16px}.feature-list strong{display:block;color:var(--ink)}
.web3-section,.hardware-wallet-section,.digital-assets-section,.swap-section,.privacy-section,.submit-chain-section,.developer-center-section{position:relative}.privacy-panel,.submit-panel,.developer-panel,.safety-panel{background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}.info-grid,.category-grid{display:grid;gap:16px}.info-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.info-card h3{margin:0 0 8px;color:var(--ink)}
.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 70px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}.step-card h3{margin:0 0 6px;color:var(--ink)}
.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(--ink)}.risk-card p{margin:0 0 8px;color:var(--muted)}
.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.faq-item h3{margin:0 0 8px;color:var(--ink);font-size:20px}.faq-item p{margin:0;color:var(--muted)}
.cta-section{padding:58px 0;background:linear-gradient(135deg,#eef6ff,#fff);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}.cta-box{max-width:760px;margin:0 auto}.cta-box h2{font-size:clamp(28px,4vw,44px);color:var(--ink);margin:0 0 12px}.cta-box p{color:var(--muted);margin:0 0 24px}
.page-hero{padding:52px 0 24px;background:linear-gradient(135deg,#f4f9ff,#fff)}.page-hero h1{font-size:clamp(34px,5vw,56px);line-height:1.14;margin:14px 0;color:var(--ink)}.page-layout{display:grid;gap:24px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}.article-card h2{color:var(--ink);margin-top:0}.article-card p{color:#48566e}.side-card{background:linear-gradient(180deg,#fff,#f7fbff);border:1px solid var(--line);border-radius:26px;padding:22px}.check-list{display:grid;gap:10px;margin:18px 0}.check-list li{list-style:none;padding:12px 14px;border:1px solid var(--line);border-radius:16px;background:var(--soft)}.single-download{margin-top:22px}.code-panel{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#f4f8ff;border:1px solid #d8e7f7;border-radius:22px;padding:18px;color:#38506f;overflow:auto}.code-panel span{color:var(--primary)}
.site-footer{background:#1f2937;color:#d5dce8;padding:44px 0 20px;margin-top:0}.footer-grid{display:grid;gap:28px}.footer-brand{font-size:22px;font-weight:900;color:#fff;margin-bottom:10px}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#d5dce8;padding:4px 0}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;color:#aab5c6;font-size:14px}
@media (min-width:720px){.ecosystem-nav,.service-index{grid-template-columns:repeat(2,1fr)}.info-grid,.category-grid{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media (min-width:980px){.nav-toggle{display:none}.site-nav{display:flex;position:static;flex-direction:row;background:transparent;border:0;box-shadow:none;padding:0;gap:4px;align-items:center}.site-nav a{font-size:14px}.hero-grid{grid-template-columns:1.02fr .98fr}.ecosystem-nav{grid-template-columns:repeat(4,1fr)}.ecosystem-card:nth-child(1),.ecosystem-card:nth-child(7){grid-column:span 2}.feature-card{grid-template-columns:1.02fr .98fr;padding:34px}.feature-card.reverse .feature-media{order:-1}.privacy-section .info-grid,.submit-chain-section .info-grid,.developer-center-section .info-grid{grid-template-columns:1fr 1fr 1fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.page-layout{grid-template-columns:minmax(0,1fr) 320px}.article-card{padding:32px}.section{padding:72px 0}.web3-hero{padding:84px 0 64px}}