:root{
  --primary:#2980FE;
  --primary-dark:#1468df;
  --primary-soft:#eef6ff;
  --ink:#1f2937;
  --muted:#667085;
  --line:#e6edf5;
  --panel:#ffffff;
  --soft:#f5f8fc;
  --bluegray:#f1f6fb;
  --deep:#0f172a;
  --radius:24px;
  --shadow:0 18px 48px rgba(20,53,92,.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(--ink);background:#fff;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)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--deep)}
.logo img{width:38px;height:38px;border-radius:12px;object-fit:contain}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--deep);font-size:22px}
.site-nav{position:absolute;left:16px;right:16px;top:72px;display:none;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow)}
.site-nav.open{display:flex}
.site-nav a{padding:10px 12px;border-radius:12px;color:#4b5563;font-weight:650;font-size:15px}
.site-nav a:hover,.site-nav a.active{background:var(--primary-soft);color:var(--primary)}
.section{padding:72px 0}
.section.soft{background:var(--soft)}
.section.blue-soft{background:linear-gradient(135deg,#f6fbff 0%,#eef6ff 100%)}
.section-head{max-width:760px;margin:0 auto 32px;text-align:center}
.section-head.left{text-align:left;margin-left:0}
.badge,.category-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid rgba(41,128,254,.18);background:var(--primary-soft);color:var(--primary);border-radius:999px;font-size:13px;font-weight:800;letter-spacing:.02em}
h1,h2,h3{line-height:1.22;margin:0 0 14px;color:var(--deep)}
h1{font-size:clamp(32px,8vw,60px);letter-spacing:-.04em}
h2{font-size:clamp(26px,5vw,42px);letter-spacing:-.03em}
h3{font-size:21px}
p{margin:0 0 14px;color:var(--muted)}
.lead{font-size:18px;color:#475467}
.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;box-shadow:0 14px 30px rgba(41,128,254,.24);transition:transform .2s ease,box-shadow .2s ease,background .2s ease;border:none;cursor:pointer}
.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 18px 36px rgba(41,128,254,.3)}
.link-more{display:inline-flex;margin-top:6px;color:var(--primary);font-weight:800}
.portal-hero{position:relative;overflow:hidden;padding:72px 0 36px;background:radial-gradient(circle at 85% 10%,rgba(41,128,254,.14),transparent 30%),linear-gradient(180deg,#fff 0%,#f7fbff 100%)}
.portal-hero:before{content:"";position:absolute;right:-180px;top:80px;width:420px;height:420px;border-radius:50%;background:rgba(41,128,254,.08);filter:blur(4px)}
.hero-grid{position:relative;display:grid;gap:34px;align-items:center}
.hero-copy{max-width:650px}
.hero-copy .download-btn{margin:12px 0 20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.hero-tags span,.mini-tag{display:inline-flex;padding:7px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#475467;font-weight:700;font-size:13px}
.hero-visual{position:relative;min-height:360px;display:flex;align-items:center;justify-content:center;padding:18px}
.hero-device{position:relative;width:min(420px,88vw);border-radius:32px;background:linear-gradient(145deg,#ffffff,#eff7ff);box-shadow:var(--shadow);padding:18px;border:1px solid rgba(41,128,254,.12)}
.hero-device img{margin:auto;max-height:440px;object-fit:contain}
.float-card{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 34px rgba(18,52,88,.1);padding:12px 14px;min-width:150px}
.float-card strong{display:block;color:var(--deep);font-size:14px}
.float-card span{color:var(--muted);font-size:12px}
.float-balance{left:0;top:34px}.float-cold{right:0;top:92px}.float-swap{left:10px;bottom:82px}.float-dapp{right:8px;bottom:28px}
.channel-nav{padding:20px 0 54px;background:#f7fbff}
.channel-grid{display:grid;grid-template-columns:1fr;gap:14px}
.channel-card,.feature-card,.category-card,.risk-card,.faq-item,.info-card,.step-card,.check-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 10px 28px rgba(16,44,84,.05)}
.channel-card{padding:18px;display:flex;gap:13px;align-items:flex-start;transition:transform .2s ease,border-color .2s ease}
.channel-card:hover{transform:translateY(-3px);border-color:rgba(41,128,254,.34)}
.channel-icon{width:36px;height:36px;border-radius:13px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:900;flex:0 0 auto}
.channel-card h3{font-size:18px;margin-bottom:6px}.channel-card p{font-size:14px;margin-bottom:4px}
.split-feature{display:grid;gap:30px;align-items:center}
.split-feature.reverse .feature-media{order:-1}
.feature-copy ul,.page-content ul{margin:14px 0 0;padding-left:20px;color:#475467}.feature-copy li,.page-content li{margin:8px 0}
.feature-media{position:relative;background:linear-gradient(145deg,#fff,#f1f7ff);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:22px;overflow:hidden}
.feature-media img{margin:auto;max-height:390px;object-fit:contain}
.feature-media:after{content:"";position:absolute;inset:auto -60px -90px auto;width:190px;height:190px;border-radius:50%;background:rgba(41,128,254,.12)}
.feature-strip{display:grid;gap:12px;margin-top:20px}
.feature-card{padding:18px}.feature-card strong{display:block;color:var(--deep);margin-bottom:4px}.feature-card p{font-size:14px;margin:0}
.safety-panel{border-radius:28px;background:linear-gradient(135deg,#f8fbff,#edf6ff);border:1px solid rgba(41,128,254,.16);padding:24px;box-shadow:var(--shadow)}
.process-steps{display:grid;gap:16px;counter-reset:steps}.step-card{position:relative;padding:20px 18px 18px;border-top:4px solid var(--primary)}
.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}
.risk-grid{display:grid;gap:16px}.risk-card{padding:18px;border-left:4px solid var(--primary)}
.risk-card .risk-label{display:inline-flex;color:var(--primary);font-weight:900;font-size:13px;margin-bottom:6px}.risk-card strong{display:block;color:var(--deep);margin-bottom:4px}.risk-card p{font-size:14px;margin-bottom:6px}
.ecosystem-category,.category-grid{display:grid;gap:16px}.category-card{padding:20px;min-height:150px}.category-card h3{display:flex;align-items:center;gap:8px}.category-card h3:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 6px rgba(41,128,254,.1)}
.faq-list{display:grid;gap:14px}.faq-item{padding:18px}.faq-item h3{font-size:18px;margin-bottom:8px}.faq-item p{margin-bottom:0}
.cta-section{margin-top:20px;text-align:center;border-radius:32px;padding:42px 22px;background:radial-gradient(circle at 20% 10%,rgba(41,128,254,.16),transparent 28%),linear-gradient(135deg,#f7fbff,#edf6ff);border:1px solid rgba(41,128,254,.14);box-shadow:var(--shadow)}
.page-hero{padding:64px 0 36px;background:linear-gradient(180deg,#fff,#f6fbff);border-bottom:1px solid var(--line)}
.page-hero-inner{max-width:850px}.page-hero .download-btn{margin-top:10px}
.page-layout{display:grid;gap:28px;align-items:start}.page-content{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}
.page-content h2{font-size:25px;margin-top:26px}.page-content h2:first-child{margin-top:0}.page-content .download-btn{margin-top:18px}
.side-panel{display:grid;gap:14px}.info-card,.check-card{padding:18px}.info-card h3,.check-card h3{font-size:18px}.info-card p,.check-card p{font-size:14px}.check-list{display:grid;gap:10px;margin:14px 0}.check-list span{display:flex;gap:9px;align-items:flex-start;color:#475467}.check-list span:before{content:"✓";display:inline-flex;width:22px;height:22px;border-radius:50%;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);font-weight:900;flex:0 0 auto}
.download-flow{display:grid;gap:14px;margin:22px 0}.download-flow .step-card{border-top:none;border-left:4px solid var(--primary)}
.site-footer{background:#111827;color:#d1d5db;padding:48px 0 18px}.site-footer p{color:#aeb7c5}.footer-grid{display:grid;gap:28px}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:12px}.footer-brand img{width:36px;height:36px;border-radius:10px}.site-footer h3{color:#fff;font-size:16px}.site-footer a{display:block;color:#c7d2e0;margin:8px 0;font-size:14px}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:16px;font-size:13px;color:#aeb7c5}
@media (min-width:640px){.channel-grid{grid-template-columns:repeat(2,1fr)}.feature-strip{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.ecosystem-category,.category-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}.page-content{padding:32px}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{position:static;display:flex;flex-direction:row;align-items:center;justify-content:flex-end;gap:2px;background:transparent;border:0;border-radius:0;padding:0;box-shadow:none}.site-nav a{font-size:14px;padding:8px 10px}.portal-hero{padding:94px 0 48px}.hero-grid{grid-template-columns:1.05fr .95fr}.channel-grid{grid-template-columns:repeat(3,1fr)}.split-feature{grid-template-columns:1fr 1fr;gap:56px}.split-feature.reverse .feature-media{order:2}.ecosystem-category{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.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}.side-panel{position:sticky;top:96px}.section{padding:88px 0}.download-flow{grid-template-columns:repeat(4,1fr)}.download-flow .step-card{border-left:none;border-top:4px solid var(--primary)}}
@media (min-width:1100px){.site-nav a{padding:9px 12px}.hero-visual{min-height:480px}.channel-grid{grid-template-columns:repeat(6,1fr)}.channel-card{flex-direction:column;min-height:170px}.channel-icon{width:42px;height:42px}.process-steps{grid-template-columns:repeat(6,1fr)}}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.portal-hero{padding-top:48px}.hero-visual{min-height:310px;padding:0}.float-card{position:static;margin:8px 0;min-width:0}.hero-device{width:100%;padding:14px}.section{padding:56px 0}.download-btn{width:100%;max-width:320px}.cta-section .download-btn,.page-content .download-btn,.page-hero .download-btn{width:100%}h1{font-size:32px}.lead{font-size:16px}}