:root{
    --primary:#2980FE;
    --primary-soft:#EAF3FF;
    --primary-soft-2:#F4F8FF;
    --text:#1F2937;
    --muted:#667085;
    --light:#F6F8FB;
    --line:#E5EAF2;
    --white:#FFFFFF;
    --shadow:0 18px 48px 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;background:var(--white);color:var(--text);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;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 var(--line)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#101828;letter-spacing:.2px}
.logo-img{width:38px;height:38px;object-fit:contain;border-radius:12px}.brand-text{font-size:18px}
.desktop-nav{display:none;align-items:center;gap:8px}.desktop-nav a{font-size:14px;color:#475467;padding:9px 12px;border-radius:999px}.desktop-nav a:hover,.desktop-nav a.active{background:var(--primary-soft);color:var(--primary)}
.nav-toggle{width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.nav-toggle span{width:18px;height:2px;background:#344054;border-radius:9px}
.mobile-nav{display:none;padding:0 18px 16px;background:#fff;border-top:1px solid var(--line)}.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mobile-nav a{padding:11px 12px;background:var(--light);border-radius:14px;color:#344054;font-size:14px}
main{min-height:60vh}.container{width:min(1120px,calc(100% - 36px));margin:0 auto}.narrow-container{width:min(880px,calc(100% - 36px));margin:0 auto}.section{padding:58px 0}.soft-bg{background:linear-gradient(180deg,#F7FAFF 0%,#FFFFFF 100%)}
.portal-hero{position:relative;overflow:hidden;background:radial-gradient(circle at 85% 18%,rgba(41,128,254,.18),transparent 34%),linear-gradient(135deg,#fff 0%,#F4F8FF 48%,#EEF6FF 100%);padding:62px 0 34px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;gap:34px;align-items:center}.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;color:var(--primary);background:var(--primary-soft);border:1px solid #D5E7FF;padding:7px 12px;border-radius:999px;font-weight:700;font-size:13px}.hero-copy h1,.page-hero h1{font-size:clamp(34px,7vw,64px);line-height:1.12;margin:18px 0;color:#101828;letter-spacing:-1px}.hero-copy p,.page-hero p{font-size:17px;color:#475467;max-width:660px}.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:26px 0}.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:800;box-shadow:0 14px 28px rgba(41,128,254,.22);border:1px solid var(--primary);transition:.2s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(41,128,254,.28)}
.security-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.security-tags span{font-size:13px;color:#344054;background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px}
.hero-visual{position:relative;padding:18px;border-radius:34px;background:rgba(255,255,255,.72);border:1px solid rgba(229,234,242,.9);box-shadow:var(--shadow)}.hero-phone{width:min(430px,92%);margin:0 auto}.float-card{position:relative;margin:-12px auto 0;background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;box-shadow:0 10px 34px rgba(16,24,40,.08);max-width:320px}.float-row{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:#667085}.float-row strong{color:#101828;font-size:20px}.hero-chips{display:grid;grid-template-columns:1fr;gap:10px;margin-top:14px}.hero-chips span{background:var(--primary-soft);color:#175CD3;border:1px solid #D5E7FF;border-radius:999px;padding:9px 12px;font-weight:700;text-align:center;font-size:13px}
.channel-nav{margin-top:32px;display:grid;grid-template-columns:1fr;gap:14px}.channel-card{background:#fff;border:1px solid var(--line);box-shadow:0 14px 34px rgba(16,24,40,.05);border-radius:22px;padding:18px;display:flex;flex-direction:column;gap:8px}.channel-card .tag{color:var(--primary);font-weight:800;font-size:12px}.channel-card h3,.feature-copy h2,.section-title h2{margin:0;color:#101828}.channel-card p{margin:0;color:#667085;font-size:14px}.text-link{color:var(--primary);font-weight:800;font-size:14px}.text-link:hover{text-decoration:underline}
.split-section{padding:64px 0}.split-grid{display:grid;gap:30px;align-items:center}.feature-copy h2,.section-title h2{font-size:clamp(28px,5vw,42px);line-height:1.2}.feature-copy p,.section-title p{color:#5D6678}.feature-list{display:grid;gap:10px;margin:22px 0;padding:0;list-style:none}.feature-list li{position:relative;padding-left:26px;color:#344054}.feature-list li:before{content:"";position:absolute;left:0;top:.7em;width:10px;height:10px;border-radius:999px;background:var(--primary);box-shadow:0 0 0 5px var(--primary-soft)}
.feature-media{border-radius:30px;background:linear-gradient(145deg,#F8FBFF,#ECF4FF);border:1px solid var(--line);padding:24px;box-shadow:var(--shadow)}.feature-media img{margin:0 auto;max-height:440px;object-fit:contain}.mini-panel{margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;color:#475467}.mini-panel strong{color:#101828}.cold-wallet-split{background:linear-gradient(180deg,#F7FAFF,#fff)}.dapp-panel{display:grid;gap:12px}.dapp-tip{background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:18px;padding:16px}.dapp-tip strong{display:block;color:#101828;margin-bottom:4px}.dapp-tip span{color:#667085;font-size:14px}
.section-title{text-align:center;margin-bottom:26px}.process-steps{display:grid;gap:14px}.step-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 30px rgba(16,24,40,.04)}.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,.risk-card h3,.category-card h3,.faq-item h3{margin:0 0 8px;color:#101828}.step-card p,.risk-card p,.category-card p,.faq-item p{margin:0 0 12px;color:#667085;font-size:15px}
.risk-grid{display:grid;gap:14px}.risk-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--primary);border-radius:20px;padding:18px;box-shadow:0 10px 30px rgba(16,24,40,.04)}.risk-card .advice{font-size:14px;color:#344054;background:var(--light);border-radius:14px;padding:10px;margin-bottom:12px}
.ecosystem-category{display:grid;gap:14px}.category-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;min-height:190px;box-shadow:0 12px 32px rgba(16,24,40,.04);overflow:hidden}.category-card:after{content:"";position:absolute;right:-24px;bottom:-24px;width:86px;height:86px;border-radius:999px;background:var(--primary-soft)}.category-card h3{position:relative}.category-card p,.category-card a{position:relative}
.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.cta-section{margin:52px auto 0;border-radius:30px;background:linear-gradient(135deg,#EAF3FF,#F8FBFF);border:1px solid #DDEBFF;padding:34px 20px;text-align:center}.cta-section h2{margin:0 0 10px;font-size:clamp(26px,5vw,40px)}.cta-section p{color:#5D6678;margin:0 auto 22px;max-width:720px}
.page-hero{background:linear-gradient(135deg,#fff,#F2F7FF);border-bottom:1px solid var(--line);padding:58px 0}.page-hero h1{font-size:clamp(32px,6vw,52px)}.content-layout{display:grid;gap:24px;align-items:start}.content-card,.side-card,.safety-panel,.guide-box{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 12px 34px rgba(16,24,40,.04)}.content-card h2,.side-card h2,.safety-panel h2,.guide-box h2{margin-top:0;color:#101828}.content-card p{color:#475467}.check-list,.number-list{padding-left:0;list-style:none;display:grid;gap:11px}.check-list li,.number-list li{background:var(--light);border:1px solid #EEF2F6;border-radius:16px;padding:12px;color:#344054}.number-list{counter-reset:item}.number-list li{counter-increment:item;position:relative;padding-left:54px}.number-list li:before{content:counter(item);position:absolute;left:14px;top:11px;width:28px;height:28px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.page-actions{margin-top:22px}.notice{border-left:4px solid var(--primary);background:var(--primary-soft-2);border-radius:18px;padding:16px;color:#344054}.download-page .download-focus{text-align:center}.download-focus{background:#fff;border:1px solid var(--line);border-radius:30px;padding:32px;box-shadow:var(--shadow)}.download-steps{display:grid;gap:14px;margin-top:26px}.about-values{display:grid;gap:14px}.value-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.value-card h3{margin-top:0}.table-like{display:grid;gap:10px}.table-like div{display:grid;gap:4px;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--light)}.table-like strong{color:#101828}.table-like span{color:#667085;font-size:14px}
.site-footer{background:#F5F7FA;border-top:1px solid var(--line);margin-top:64px}.footer-inner{width:min(1120px,calc(100% - 36px));margin:0 auto;padding:32px 0;display:grid;gap:20px}.footer-brand{display:flex;gap:14px;align-items:flex-start}.footer-logo{width:42px;height:42px;object-fit:contain}.footer-brand p{margin:4px 0 0;color:#667085}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.footer-links a{color:#475467;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px}.footer-bottom{text-align:center;color:#667085;border-top:1px solid var(--line);padding:16px;font-size:14px}
@media (min-width:640px){.channel-nav{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.ecosystem-category{grid-template-columns:repeat(2,1fr)}.hero-chips{grid-template-columns:repeat(3,1fr)}.download-steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:920px){.desktop-nav{display:flex}.nav-toggle,.mobile-nav{display:none!important}.portal-hero{padding:84px 0 44px}.hero-grid{grid-template-columns:1.05fr .95fr}.channel-nav{grid-template-columns:repeat(6,1fr)}.split-grid{grid-template-columns:1fr 1fr}.split-grid.reverse .feature-media{order:-1}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.ecosystem-category{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 330px}.footer-inner{grid-template-columns:1fr auto;align-items:center}.footer-links{grid-template-columns:repeat(4,auto)}.section{padding:76px 0}.split-section{padding:82px 0}.page-hero{padding:76px 0}.download-steps{grid-template-columns:repeat(4,1fr)}}
@media (min-width:1180px){.hero-copy p{font-size:18px}.channel-card{min-height:158px}.hero-visual{padding:26px}.content-card,.side-card,.safety-panel,.guide-box{padding:28px}}