:root{
  --primary:#2980FE;
  --primary-dark:#1168e7;
  --ink:#182235;
  --text:#3f4a5c;
  --muted:#6c778a;
  --line:#e5ebf3;
  --soft:#f4f7fb;
  --soft-blue:#eef6ff;
  --white:#fff;
  --shadow:0 18px 45px rgba(41,128,254,.10);
  --radius:24px;
}
*{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%,#f8fbff 42%,#fff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1120px,calc(100% - 36px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,235,243,.85)}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo,.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);letter-spacing:.02em}
.logo img,.footer-brand img{width:36px;height:36px;border-radius:12px;object-fit:contain}
.site-nav{display:none;gap:8px;align-items:center}
.site-nav a{font-size:14px;color:#526071;padding:9px 11px;border-radius:999px;transition:.2s}
.site-nav a:hover,.site-nav a.active{color:var(--primary);background:var(--soft-blue)}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-trigger{width:42px;height:42px;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:#fff;box-shadow:0 10px 24px rgba(24,34,53,.06)}
.nav-trigger span{width:18px;height:2px;background:var(--ink);border-radius:99px}
.nav-toggle:checked~.site-nav{display:grid;position:absolute;top:72px;left:18px;right:18px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);grid-template-columns:repeat(2,minmax(0,1fr))}
.section{padding:70px 0}
.section-title{margin:0 0 14px;color:var(--ink);font-size:clamp(28px,4vw,42px);line-height:1.18;letter-spacing:-.03em}
.section-lead{margin:0 0 26px;color:var(--muted);max-width:760px}
.portal-hero{position:relative;padding:74px 0 42px;overflow:hidden;background:radial-gradient(circle at 18% 8%,rgba(41,128,254,.14),transparent 34%),linear-gradient(135deg,#fff 0%,#f6faff 100%)}
.portal-hero:after{content:"";position:absolute;right:-160px;top:-140px;width:420px;height:420px;border-radius:50%;background:rgba(41,128,254,.08);z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;gap:34px;align-items:center}
.hero-copy h1{margin:0 0 18px;font-size:clamp(36px,8vw,68px);line-height:1.06;letter-spacing:-.055em;color:var(--ink)}
.hero-copy p{font-size:18px;color:#536176;margin:0 0 24px;max-width:640px}
.hero-tags,.mini-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-tags span,.mini-tags span,.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(41,128,254,.17);background:#fff;color:var(--primary);border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 24px;background:var(--primary);color:#fff;border-radius:999px;font-weight:800;box-shadow:0 16px 30px rgba(41,128,254,.22);transition:.2s;border:0;cursor:pointer}
.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark)}
.hero-visual{position:relative;min-height:430px;border-radius:32px;background:linear-gradient(155deg,#eef6ff 0%,#fff 58%,#f6f8fb 100%);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;padding:28px;overflow:hidden}
.hero-visual .product-img{max-height:390px;object-fit:contain;filter:drop-shadow(0 25px 38px rgba(24,34,53,.13))}
.float-card{position:absolute;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:20px;padding:12px 14px;box-shadow:0 16px 36px rgba(24,34,53,.10);font-size:13px;color:var(--ink)}
.float-card strong{display:block;color:var(--primary);font-size:16px}.card-assets{left:18px;top:22px}.card-cold{right:18px;top:68px}.card-swap{left:24px;bottom:64px}.card-dapp{right:28px;bottom:28px}
.channel-nav{padding:26px 0 66px;background:#fff}
.channel-grid{display:grid;grid-template-columns:1fr;gap:14px}
.channel-card,.feature-card,.risk-card,.faq-item,.info-card,.step-card,.category-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 12px 28px rgba(24,34,53,.045)}
.channel-card{padding:18px;display:flex;flex-direction:column;gap:8px;min-height:160px;transition:.2s}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.channel-card .eyebrow,.category-card .eyebrow{font-size:12px;color:var(--primary);font-weight:800;letter-spacing:.08em}
.channel-card h2,.feature-card h3,.risk-card h3,.category-card h3{margin:0;color:var(--ink);font-size:20px;line-height:1.25}
.channel-card p,.feature-card p,.risk-card p,.category-card p{margin:0;color:var(--muted);font-size:14px}
.text-link{display:inline-flex;margin-top:auto;color:var(--primary);font-weight:800;font-size:14px}
.split-feature{padding:74px 0}.split-feature.alt{background:var(--soft-blue)}.split-grid{display:grid;gap:30px;align-items:center}.split-grid.reverse .media{order:-1}
.copy-panel{padding:8px}.copy-panel h2{margin:0 0 14px;color:var(--ink);font-size:clamp(28px,4vw,44px);line-height:1.15;letter-spacing:-.035em}.copy-panel p{margin:0 0 18px;color:var(--muted)}
.feature-list{display:grid;gap:10px;margin:18px 0 20px;padding:0;list-style:none}.feature-list li{position:relative;padding-left:26px;color:#445066}.feature-list li:before{content:"";position:absolute;left:0;top:.74em;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px rgba(41,128,254,.10)}
.media{position:relative;border:1px solid var(--line);background:#fff;border-radius:32px;padding:22px;box-shadow:var(--shadow);overflow:hidden}.media.soft{background:linear-gradient(135deg,#fff,#f3f8ff)}.media img{margin:auto;max-height:360px;object-fit:contain}.media-note{margin-top:14px;padding:14px;border-radius:18px;background:var(--soft);color:#536176;font-size:14px}
.process-steps{padding:76px 0;background:#fff}.steps-grid{display:grid;gap:14px}.step-card{padding:18px}.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;color:var(--ink)}.step-card p{margin:0 0 12px;color:var(--muted)}
.risk-section{padding:76px 0;background:linear-gradient(180deg,#f7fbff,#fff)}.risk-grid{display:grid;gap:14px}.risk-card{padding:18px;border-left:4px solid var(--primary)}.risk-card .action{margin-top:10px;padding:10px 12px;background:var(--soft-blue);border-radius:14px;color:#305176;font-size:14px}.risk-card a{color:var(--primary);font-weight:800}
.ecosystem-category{padding:76px 0;background:#fff}.category-grid{display:grid;gap:14px}.category-card{padding:20px;min-height:168px;display:flex;flex-direction:column;gap:8px}
.faq-summary{padding:76px 0;background:var(--soft)}.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h3{margin:0 0 8px;color:var(--ink);font-size:18px}.faq-item p{margin:0;color:var(--muted)}
.cta-section{padding:70px 0;background:linear-gradient(135deg,#eef6ff,#fff);text-align:center}.cta-box{border:1px solid rgba(41,128,254,.15);background:#fff;border-radius:32px;box-shadow:var(--shadow);padding:34px 22px}.cta-box h2{margin:0 0 12px;color:var(--ink);font-size:clamp(28px,4vw,42px)}.cta-box p{margin:0 auto 22px;max-width:720px;color:var(--muted)}
.page-hero{padding:58px 0;background:linear-gradient(135deg,#f3f8ff 0%,#fff 80%);border-bottom:1px solid var(--line)}.page-hero h1{margin:12px 0 14px;color:var(--ink);font-size:clamp(32px,6vw,54px);line-height:1.1;letter-spacing:-.04em}.page-hero p{margin:0;max-width:800px;color:var(--muted);font-size:17px}
.content-section{padding:62px 0}.content-layout{display:grid;gap:24px}.article-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 14px 34px rgba(24,34,53,.045)}.article-card h2{margin:0 0 12px;color:var(--ink);font-size:26px}.article-card h3{margin:22px 0 10px;color:var(--ink)}.article-card p{margin:0 0 16px}.article-card ul,.article-card ol{margin:12px 0 18px;padding-left:22px}.article-card li{margin:8px 0}.sidebar{display:grid;gap:14px;align-content:start}.info-card{padding:18px}.info-card h3{margin:0 0 10px;color:var(--ink)}.checklist{display:grid;gap:10px;margin:16px 0}.checkitem{padding:12px 14px;background:var(--soft-blue);border-radius:16px;color:#36506b}.download-panel{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.download-flow{counter-reset:item;display:grid;gap:12px;margin:22px 0}.download-flow div{counter-increment:item;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 14px 14px 58px;position:relative}.download-flow div:before{content:counter(item);position:absolute;left:14px;top:14px;width:30px;height:30px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}
.notice-box{border:1px solid rgba(41,128,254,.18);background:linear-gradient(135deg,#f5faff,#fff);border-radius:22px;padding:18px;margin:18px 0}.notice-box strong{color:var(--ink)}
.site-footer{background:#152033;color:#dbe6f4;padding:48px 0 24px}.footer-grid{display:grid;gap:26px}.site-footer p{color:#9fb0c6;margin:14px 0 0}.site-footer h3{margin:0 0 12px;color:#fff;font-size:16px}.site-footer a{display:block;color:#c8d5e8;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:20px;color:#93a5bd;font-size:13px}
@media (min-width:640px){.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.risk-grid,.category-grid,.steps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-card{padding:34px}.cta-box{padding:46px}.nav-toggle:checked~.site-nav{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:900px){.nav-trigger{display:none}.site-nav{display:flex}.hero-grid{grid-template-columns:1.04fr .96fr}.portal-hero{padding:92px 0 56px}.channel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.split-grid{grid-template-columns:1fr 1fr}.split-grid.reverse .media{order:2}.steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.risk-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.category-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.4fr .8fr .8fr}.section{padding:92px 0}.site-nav a{padding:8px 9px}}
@media (min-width:1100px){.site-nav a{padding:9px 11px}.steps-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media (max-width:420px){.container{width:min(100% - 28px,1120px)}.hero-visual{min-height:350px;padding:18px}.float-card{font-size:12px;padding:9px 10px}.card-cold{top:58px}.download-btn{width:100%}.channel-card,.risk-card,.category-card,.step-card{border-radius:18px}.nav-toggle:checked~.site-nav{left:14px;right:14px;grid-template-columns:1fr}}