:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-fade:#F4F8FF;
  --text:#202938;
  --muted:#627085;
  --line:#E6ECF5;
  --panel:#FFFFFF;
  --bg:#F7FAFE;
  --deep:#182233;
  --shadow:0 18px 48px rgba(35,91,166,.10);
  --radius:26px;
}
*{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;color:var(--text);background:linear-gradient(180deg,#fff 0%,#f7fafe 48%,#fff 100%);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,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,236,245,.86)}
.nav-shell{max-width:1180px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);letter-spacing:.03em;white-space:nowrap}
.brand img{width:38px;height:38px;border-radius:12px;object-fit:cover;background:var(--primary-soft)}
.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--text);padding:8px 13px;font-weight:700}
.site-nav{display:none;position:absolute;left:18px;right:18px;top:66px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:12px;grid-template-columns:1fr 1fr;gap:6px}
.site-nav.open{display:grid}
.site-nav a{padding:10px 12px;border-radius:14px;color:var(--muted);font-size:14px;font-weight:700}
.site-nav a.active,.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.container,.content-container{width:min(1120px,calc(100% - 34px));margin:0 auto}
.narrow-container{width:min(900px,calc(100% - 34px));margin:0 auto}
.section{padding:54px 0}
.section-kicker,.category-badge,.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(41,128,254,.18);background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:800;letter-spacing:.04em}
.section-title{font-size:clamp(28px,6vw,50px);line-height:1.12;margin:16px 0 14px;color:var(--deep);letter-spacing:-.04em}
.section-lead{font-size:16px;color:var(--muted);margin:0 0 24px;max-width:760px}
.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:900;box-shadow:0 12px 30px rgba(41,128,254,.28);transition:transform .2s ease,box-shadow .2s ease}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(41,128,254,.34)}
.launch-hero{position:relative;overflow:hidden;padding:58px 0 34px;background:radial-gradient(circle at 85% 12%,rgba(41,128,254,.16),transparent 34%),linear-gradient(135deg,#fff 0%,#f4f8ff 100%)}
.launch-hero:before{content:"";position:absolute;inset:auto -120px -160px auto;width:360px;height:360px;border-radius:50%;background:rgba(41,128,254,.10)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:34px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-size:clamp(36px,11vw,72px);line-height:1.04;letter-spacing:-.055em;margin:16px 0;color:var(--deep)}
.hero-copy p{color:var(--muted);font-size:17px;margin:0 0 24px;max-width:680px}
.hero-tags,.floating-tags,.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-tags span,.floating-tags span,.mini-tag{border:1px solid var(--line);background:rgba(255,255,255,.78);border-radius:999px;padding:8px 12px;color:var(--muted);font-size:13px;font-weight:800}
.hero-visual{position:relative;display:grid;place-items:center;min-height:360px;border-radius:34px;background:linear-gradient(160deg,#fff, #eef6ff);border:1px solid rgba(41,128,254,.14);box-shadow:var(--shadow);padding:28px;overflow:hidden}
.hero-visual:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(41,128,254,.13);filter:blur(2px)}
.app-showcase{position:relative;z-index:2;width:min(330px,76vw);filter:drop-shadow(0 24px 35px rgba(28,72,128,.16))}
.float-chip{position:absolute;z-index:3;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 12px;box-shadow:0 12px 34px rgba(35,91,166,.12);font-size:13px;font-weight:900;color:var(--deep)}
.float-chip small{display:block;color:var(--primary);font-size:11px;margin-top:2px}.chip-a{left:18px;top:28px}.chip-b{right:16px;top:112px}.chip-c{left:24px;bottom:72px}.chip-d{right:24px;bottom:26px}
.highlight-bar{display:grid;grid-template-columns:1fr;gap:14px;margin-top:-24px;position:relative;z-index:2}
.highlight-card,.simple-card,.risk-card,.faq-item,.category-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 35px rgba(35,91,166,.06)}
.highlight-card b,.category-card b{display:block;color:var(--deep);font-size:18px;margin:8px 0}.highlight-card p,.category-card p,.step-card p,.risk-card p,.faq-item p{margin:0;color:var(--muted);font-size:15px}.highlight-card a,.category-card a,.step-card a,.risk-card a,.text-link{display:inline-flex;margin-top:12px;color:var(--primary);font-weight:900;font-size:14px}
.launch-card,.big-feature-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden;margin:24px 0;padding:22px;display:grid;grid-template-columns:1fr;gap:20px;align-items:center}
.big-feature-card.soft{background:linear-gradient(135deg,#fff 0%,#f5f9ff 100%)}
.feature-copy h2{font-size:clamp(26px,6vw,44px);line-height:1.12;margin:10px 0;color:var(--deep);letter-spacing:-.035em}.feature-copy p{color:var(--muted);margin:0 0 16px}.feature-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.feature-list li{position:relative;padding-left:24px;color:var(--text)}.feature-list li:before{content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:50%;background:var(--primary)}
.feature-media{border-radius:24px;background:linear-gradient(160deg,#f8fbff,#eef6ff);border:1px solid rgba(41,128,254,.14);padding:22px;display:grid;place-items:center;min-height:260px;overflow:hidden}.feature-media img{max-height:420px;object-fit:contain;filter:drop-shadow(0 22px 28px rgba(28,72,128,.14))}
.wallet-feature .feature-media{background:radial-gradient(circle at 30% 20%,rgba(41,128,254,.16),transparent 34%),#f8fbff}.cold-wallet-feature{background:linear-gradient(135deg,#f9fbfe,#edf5ff)}.swap-feature .feature-media{background:linear-gradient(180deg,#fff,#edf5ff)}.dapp-feature{background:linear-gradient(145deg,#fff,#f3f8ff)}
.process-steps{display:grid;grid-template-columns:1fr;gap:14px;counter-reset:step}.step-card{position:relative;padding-top:48px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900}.step-card h3,.risk-card h3,.simple-card h3{margin:0 0 8px;color:var(--deep)}
.risk-grid{display:grid;grid-template-columns:1fr;gap:14px}.risk-card{border-top:4px solid var(--primary)}.risk-card strong{display:block;margin-top:10px;color:var(--deep)}
.app-category-center,.category-grid{display:grid;grid-template-columns:1fr;gap:14px}.category-card{position:relative;overflow:hidden}.category-card:after{content:"";position:absolute;right:-30px;bottom:-40px;width:110px;height:110px;border-radius:50%;background:var(--primary-soft)}
.faq-list{display:grid;gap:14px}.faq-item h3{margin:0 0 8px;color:var(--deep);font-size:18px}.cta-section{margin:34px 0 0;border-radius:32px;background:linear-gradient(135deg,#edf5ff,#fff);border:1px solid rgba(41,128,254,.15);padding:34px 20px;text-align:center;box-shadow:var(--shadow)}.cta-section h2{margin:0 0 12px;font-size:clamp(26px,7vw,46px);line-height:1.12;color:var(--deep)}.cta-section p{max-width:650px;margin:0 auto 22px;color:var(--muted)}
.page-hero{padding:52px 0 30px;background:radial-gradient(circle at 80% 0,rgba(41,128,254,.13),transparent 34%),linear-gradient(180deg,#fff,#f6faff);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(34px,8vw,58px);line-height:1.08;margin:14px 0;color:var(--deep);letter-spacing:-.04em}.page-hero p{color:var(--muted);font-size:17px;max-width:780px;margin:0}
.article-layout{display:grid;grid-template-columns:1fr;gap:20px;align-items:start}.article-main{background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:0 12px 35px rgba(35,91,166,.06)}.article-main h2{font-size:24px;margin:12px 0;color:var(--deep)}.article-main p{color:var(--muted);margin:0 0 16px}.side-panel,.safety-panel{background:linear-gradient(180deg,#fff,#f5f9ff);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 12px 34px rgba(35,91,166,.06)}.side-panel ul,.check-list{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:10px}.side-panel li,.check-list li{padding-left:24px;position:relative;color:var(--muted)}.side-panel li:before,.check-list li:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary);position:absolute;left:0;top:11px}.content-actions{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.info-grid{display:grid;grid-template-columns:1fr;gap:14px;margin:20px 0}.number-list{display:grid;gap:12px;margin:18px 0}.number-item{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:start;background:var(--primary-fade);border:1px solid rgba(41,128,254,.13);border-radius:18px;padding:14px}.number-item span{width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900}.number-item b{display:block;color:var(--deep)}.number-item p{margin:4px 0 0;color:var(--muted)}
.download-steps{display:grid;gap:14px;margin-top:22px}.download-page-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}
.site-footer{margin-top:56px;background:#fff;border-top:1px solid var(--line)}.footer-shell{max-width:1180px;margin:0 auto;padding:28px 18px;display:grid;gap:20px}.footer-brand{display:flex;gap:14px;align-items:flex-start}.footer-brand img{width:40px;height:40px;border-radius:12px;background:var(--primary-soft)}.footer-brand p{margin:4px 0 0;color:var(--muted);font-size:14px}.footer-links{display:flex;flex-wrap:wrap;gap:10px}.footer-links a{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:var(--muted);font-weight:700;font-size:14px}
@media (min-width:640px){.highlight-bar{grid-template-columns:repeat(2,1fr)}.risk-grid,.process-steps,.category-grid,.app-category-center,.info-grid{grid-template-columns:repeat(2,1fr)}.article-main{padding:30px}.download-page-card{padding:34px}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{position:static;display:flex!important;align-items:center;justify-content:flex-end;border:0;box-shadow:none;background:transparent;padding:0;gap:2px}.site-nav a{font-size:14px}.launch-hero{padding:82px 0 54px}.hero-grid{grid-template-columns:1.03fr .97fr;gap:52px}.highlight-bar{grid-template-columns:repeat(3,1fr)}.big-feature-card,.launch-card{grid-template-columns:1.05fr .95fr;padding:34px;gap:34px}.big-feature-card.reverse{grid-template-columns:.95fr 1.05fr}.big-feature-card.reverse .feature-media{order:-1}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}.app-category-center{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:minmax(0,1fr) 320px}.side-panel{position:sticky;top:92px}.footer-shell{grid-template-columns:1fr auto;align-items:center}.section{padding:72px 0}.page-hero{padding:76px 0 42px}}
@media (min-width:1120px){.feature-media{min-height:380px}.hero-visual{min-height:530px}.app-showcase{width:390px}.chip-a{left:32px;top:48px}.chip-b{right:34px;top:156px}.chip-c{left:52px;bottom:116px}.chip-d{right:56px;bottom:58px}}