:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-pale:#F4F8FF;
  --bg:#F6F8FC;
  --bg-soft:#EEF4FB;
  --white:#FFFFFF;
  --line:#E3E8F0;
  --text:#1F2937;
  --muted:#667085;
  --dark:#111827;
  --shadow:0 18px 48px rgba(31,41,55,.08);
  --soft-shadow:0 10px 28px rgba(41,128,254,.10);
  --radius:24px;
  --radius-lg:32px;
  --container:1180px;
}
*{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;
  background:linear-gradient(180deg,#fff 0%,#f7faff 42%,#f5f7fb 100%);
  color:var(--text);
  line-height:1.75;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(227,232,240,.75);
}
.header-inner{
  width:min(100% - 32px,var(--container));
  margin:0 auto;
  min-height:72px;
  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:38px;height:38px;border-radius:12px;object-fit:contain}
.site-nav{
  display:none;
  position:absolute;
  left:16px;
  right:16px;
  top:72px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:22px;
  background:var(--white);
  box-shadow:var(--shadow);
}
.site-nav.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.site-nav a{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:8px 10px;
  border-radius:14px;
  color:#344054;
  font-size:14px;
}
.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.mobile-nav-toggle{
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--white);
  display:grid;
  place-items:center;
  gap:4px;
  padding:11px;
}
.mobile-nav-toggle span{
  width:20px;
  height:2px;
  background:var(--dark);
  display:block;
  border-radius:99px;
}
.content-container,.container{
  width:min(100% - 32px,var(--container));
  margin:0 auto;
}
.section{padding:56px 0}
.section-tight{padding:38px 0}
.section-head{
  width:min(100%,780px);
  margin:0 auto 26px;
  text-align:center;
}
.section-kicker,.category-badge,.eyebrow{
  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:6px 12px;
  font-weight:700;
  font-size:13px;
}
.section-head h2,.page-hero h1,.web3-hero h1{
  color:var(--dark);
  line-height:1.12;
  letter-spacing:-.04em;
}
.section-head h2{font-size:clamp(28px,4vw,44px);margin:14px 0 12px}
.section-head p{color:var(--muted);margin:0}
.web3-hero{
  position:relative;
  overflow:hidden;
  padding:58px 0 42px;
}
.web3-hero:before{
  content:"";
  position:absolute;
  inset:-80px -80px auto auto;
  width:420px;
  height:420px;
  background:radial-gradient(circle,rgba(41,128,254,.22),rgba(41,128,254,0) 68%);
  pointer-events:none;
}
.web3-hero:after{
  content:"";
  position:absolute;
  left:-120px;
  bottom:-120px;
  width:360px;
  height:360px;
  background:radial-gradient(circle,rgba(41,128,254,.12),rgba(41,128,254,0) 72%);
  pointer-events:none;
}
.web3-hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  gap:32px;
  align-items:center;
}
.web3-hero h1{
  font-size:clamp(38px,7vw,76px);
  margin:16px 0;
}
.hero-copy p{
  color:#475467;
  font-size:clamp(16px,2vw,19px);
  margin:0 0 24px;
  max-width:680px;
}
.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:50px;
  padding:13px 24px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),#4F96FF);
  color:#fff;
  font-weight:800;
  border:0;
  box-shadow:0 14px 32px rgba(41,128,254,.25);
  transition:transform .2s ease,box-shadow .2s ease;
}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(41,128,254,.30)}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-weight:800;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.safe-tag,.floating-tag,.mini-tag{
  display:inline-flex;
  align-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.88);
  color:#344054;
  border-radius:999px;
  padding:7px 12px;
  font-size:13px;
  font-weight:700;
}
.hero-visual{
  position:relative;
  min-height:420px;
  display:grid;
  place-items:center;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(135deg,rgba(41,128,254,.08),rgba(255,255,255,.92)),
    radial-gradient(circle at 70% 20%,rgba(41,128,254,.16),transparent 34%);
  border:1px solid rgba(41,128,254,.14);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.hero-visual:before{
  content:"";
  position:absolute;
  width:88%;
  height:88%;
  border:1px solid rgba(41,128,254,.12);
  border-radius:50%;
}
.hero-visual img{
  width:min(78%,380px);
  max-height:520px;
  object-fit:contain;
  filter:drop-shadow(0 28px 36px rgba(31,41,55,.16));
  position:relative;
  z-index:2;
}
.floating-tag{
  position:absolute;
  z-index:3;
  box-shadow:var(--soft-shadow);
}
.tag-web3{top:24px;left:18px}
.tag-hardware{right:18px;top:90px}
.tag-assets{left:22px;bottom:92px}
.tag-swap{right:26px;bottom:28px}
.ecosystem-nav{
  display:grid;
  gap:14px;
  grid-template-columns:1fr;
}
.ecosystem-card,.feature-card,.risk-card,.faq-item,.info-card,.step-card,.category-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 10px 28px rgba(31,41,55,.045);
}
.ecosystem-card{
  padding:20px;
  min-height:168px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  transition:transform .2s ease,border-color .2s ease;
}
.ecosystem-card:hover{transform:translateY(-4px);border-color:rgba(41,128,254,.36)}
.ecosystem-card .mini-tag{align-self:flex-start;color:var(--primary);background:var(--primary-soft);border-color:rgba(41,128,254,.18)}
.ecosystem-card h3{margin:14px 0 8px;color:var(--dark);font-size:20px}
.ecosystem-card p{margin:0 0 12px;color:var(--muted);font-size:15px}
.service-section{padding:22px 0}
.big-card,.web3-section,.hardware-wallet-section,.digital-assets-section,.swap-section,.privacy-section,.submit-chain-section,.developer-center-section{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--white);
}
.big-card-grid{
  display:grid;
  gap:0;
}
.feature-copy{
  padding:30px;
}
.feature-copy h2{
  font-size:clamp(28px,4vw,46px);
  line-height:1.15;
  color:var(--dark);
  margin:12px 0;
  letter-spacing:-.035em;
}
.feature-copy p{color:#475467;margin:0 0 16px}
.feature-copy ul,.check-list{
  margin:18px 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}
.feature-copy li,.check-list li{
  position:relative;
  padding-left:26px;
  color:#475467;
}
.feature-copy li:before,.check-list li:before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 5px rgba(41,128,254,.12);
}
.feature-visual{
  min-height:300px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#f7fbff,#eef5ff);
  padding:28px;
}
.feature-visual img{
  max-height:360px;
  object-fit:contain;
  filter:drop-shadow(0 22px 30px rgba(31,41,55,.13));
}
.hardware-wallet-section,.privacy-section{background:linear-gradient(135deg,#fff,#f3f8ff)}
.developer-center-section{
  background:
    linear-gradient(135deg,#ffffff,#f2f7ff 62%,#edf5ff);
}
.code-panel{
  margin:26px;
  border:1px solid rgba(41,128,254,.18);
  border-radius:24px;
  background:#0f172a;
  color:#dbeafe;
  padding:22px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  box-shadow:0 20px 44px rgba(15,23,42,.18);
}
.code-panel span{display:block;color:#93c5fd;margin:4px 0}
.code-panel strong{color:#fff}
.dual-cards,.category-grid,.risk-grid,.info-grid{
  display:grid;
  gap:16px;
}
.privacy-panel,.submit-panel{
  display:grid;
  gap:16px;
  padding:28px;
}
.info-card{
  padding:22px;
}
.info-card h3{margin:0 0 8px;color:var(--dark)}
.info-card p{margin:0;color:var(--muted)}
.process-steps{
  display:grid;
  gap:14px;
  counter-reset:steps;
}
.step-card{
  position:relative;
  padding:22px;
  overflow:hidden;
}
.step-card:before{
  counter-increment:steps;
  content:"0" counter(steps);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:14px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:900;
  margin-bottom:14px;
}
.step-card h3{margin:0 0 8px;color:var(--dark)}
.step-card p{margin:0 0 10px;color:var(--muted)}
.risk-grid{grid-template-columns:1fr}
.risk-card{
  padding:20px;
  border-left:4px solid var(--primary);
}
.risk-card h3{margin:0 0 8px;color:var(--dark)}
.risk-card p{margin:0 0 12px;color:var(--muted)}
.risk-card strong{display:block;color:#344054;margin-bottom:6px}
.app-category-center,.category-grid{
  display:grid;
  gap:16px;
}
.category-card{
  padding:22px;
  min-height:160px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.category-card h3{margin:0 0 8px;color:var(--dark)}
.category-card p{margin:0 0 14px;color:var(--muted)}
.faq-list{
  display:grid;
  gap:14px;
}
.faq-item{
  padding:20px;
}
.faq-item h3{margin:0 0 8px;color:var(--dark);font-size:18px}
.faq-item p{margin:0;color:var(--muted)}
.cta-section{
  margin:38px auto 72px;
  width:min(100% - 32px,var(--container));
  border-radius:var(--radius-lg);
  background:
    linear-gradient(135deg,rgba(41,128,254,.12),rgba(255,255,255,.96)),
    radial-gradient(circle at 75% 20%,rgba(41,128,254,.16),transparent 36%);
  border:1px solid rgba(41,128,254,.18);
  text-align:center;
  padding:42px 22px;
  box-shadow:var(--shadow);
}
.cta-section h2{margin:0 0 12px;color:var(--dark);font-size:clamp(28px,4vw,44px);letter-spacing:-.035em}
.cta-section p{margin:0 auto 22px;max-width:720px;color:#475467}
.page-hero{
  padding:54px 0 26px;
  background:
    linear-gradient(180deg,#fff 0%,#f4f8ff 100%);
  border-bottom:1px solid var(--line);
}
.page-hero-inner{
  width:min(100% - 32px,980px);
  margin:0 auto;
}
.page-hero h1{
  font-size:clamp(34px,5vw,58px);
  margin:14px 0 12px;
}
.page-hero p{color:#475467;font-size:18px;margin:0;max-width:780px}
.page-layout{
  width:min(100% - 32px,var(--container));
  margin:34px auto 68px;
  display:grid;
  gap:22px;
}
.article-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:26px;
}
.article-card h2{font-size:26px;margin:0 0 12px;color:var(--dark)}
.article-card p{color:#475467;margin:0 0 16px}
.article-card .download-btn{margin-top:10px}
.side-panel{
  display:grid;
  gap:14px;
  align-content:start;
}
.safety-panel{
  background:linear-gradient(135deg,#fff,#f3f8ff);
  border:1px solid rgba(41,128,254,.16);
  border-radius:var(--radius);
  padding:22px;
}
.safety-panel h3{margin:0 0 10px;color:var(--dark)}
.safety-panel p{margin:0;color:var(--muted)}
.safety-panel ul{margin:12px 0 0;padding-left:20px;color:#475467}
.inline-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:16px;
}
.inline-links a{
  padding:8px 12px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:800;
  font-size:14px;
}
.download-flow{
  display:grid;
  gap:14px;
  margin:22px 0;
}
.download-step{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
}
.download-step span{
  flex:0 0 38px;
  width:38px;height:38px;
  border-radius:13px;
  display:grid;place-items:center;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:900;
}
.download-step h3{margin:0 0 4px;color:var(--dark)}
.download-step p{margin:0;color:var(--muted)}
.site-footer{
  background:#ffffff;
  border-top:1px solid var(--line);
  padding:34px 0;
}
.footer-inner{
  width:min(100% - 32px,var(--container));
  margin:0 auto;
  display:grid;
  gap:22px;
}
.footer-brand{display:flex;gap:14px;align-items:center}
.footer-brand img{width:42px;height:42px;border-radius:14px}
.footer-brand p,.footer-note{margin:4px 0 0;color:var(--muted);font-size:14px}
.footer-links{display:flex;flex-wrap:wrap;gap:10px}
.footer-links a{
  padding:8px 12px;
  border-radius:999px;
  background:#f2f4f7;
  color:#344054;
  font-size:14px;
}
@media (min-width:640px){
  .ecosystem-nav{grid-template-columns:repeat(2,1fr)}
  .category-grid,.app-category-center,.info-grid{grid-template-columns:repeat(2,1fr)}
  .risk-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
  .mobile-nav-toggle{display:none}
  .site-nav{
    position:static;
    display:flex;
    align-items:center;
    justify-content:flex-end;
    gap:2px;
    padding:0;
    border:0;
    border-radius:0;
    box-shadow:none;
    background:transparent;
  }
  .site-nav a{font-size:14px;min-height:40px;padding:8px 9px}
  .web3-hero{padding:84px 0 62px}
  .web3-hero-grid{grid-template-columns:1.02fr .98fr;gap:44px}
  .hero-visual{min-height:560px}
  .ecosystem-nav{grid-template-columns:repeat(4,1fr)}
  .ecosystem-card:nth-child(1){grid-column:span 2}
  .ecosystem-card:nth-child(7){grid-column:span 2}
  .big-card-grid{grid-template-columns:1fr 1fr;align-items:stretch}
  .big-card-grid.reverse .feature-copy{order:2}
  .big-card-grid.reverse .feature-visual{order:1}
  .feature-copy{padding:46px}
  .feature-visual{min-height:430px}
  .privacy-panel,.submit-panel{grid-template-columns:1.05fr .95fr;align-items:center;padding:42px}
  .developer-center-section .big-card-grid{grid-template-columns:1fr 1fr}
  .process-steps{grid-template-columns:repeat(3,1fr)}
  .risk-grid{grid-template-columns:repeat(4,1fr)}
  .app-category-center,.category-grid{grid-template-columns:repeat(4,1fr)}
  .page-layout{grid-template-columns:minmax(0,1fr) 330px;align-items:start}
  .article-card{padding:38px}
  .footer-inner{grid-template-columns:1.1fr 1fr;align-items:center}
  .footer-note{grid-column:1 / -1}
}
@media (min-width:1120px){
  .site-nav a{padding:8px 12px}
}
@media (max-width:380px){
  .site-nav.is-open{grid-template-columns:1fr}
  .hero-visual{min-height:340px}
  .feature-copy{padding:24px}
  .article-card{padding:22px}
}