:root{
    --primary:#2980FE;
    --primary-soft:#EAF3FF;
    --primary-faint:#F4F8FF;
    --white:#ffffff;
    --gray-50:#F7F9FC;
    --gray-100:#EDF1F7;
    --gray-200:#DDE4EF;
    --gray-500:#65758B;
    --gray-700:#27364A;
    --gray-900:#101828;
    --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","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;color:var(--gray-700);background:linear-gradient(180deg,#fff 0%,#f7faff 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% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--gray-100)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--gray-900);letter-spacing:.02em;white-space:nowrap}
.brand img{width:38px;height:38px;border-radius:12px;object-fit:cover}
.site-nav{position:absolute;left:16px;right:16px;top:72px;display:none;flex-direction:column;gap:6px;padding:14px;background:#fff;border:1px solid var(--gray-100);border-radius:20px;box-shadow:var(--shadow)}
.site-nav a{padding:10px 12px;border-radius:14px;color:var(--gray-500);font-weight:650;font-size:14px}
.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-toggle-label{display:grid;gap:4px;place-content:center;width:44px;height:44px;border:1px solid var(--gray-100);border-radius:14px;background:#fff;cursor:pointer}
.nav-toggle-label span{display:block;width:18px;height:2px;background:var(--gray-700);border-radius:2px}
.nav-toggle:checked~.site-nav{display:flex}
main{min-height:70vh}
.section{padding:58px 0}
.section-tight{padding:38px 0}
.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:800;font-size:13px;letter-spacing:.04em}
h1,h2,h3{color:var(--gray-900);line-height:1.18;margin:0 0 14px}
h1{font-size:clamp(34px,7vw,64px);letter-spacing:-.045em}
h2{font-size:clamp(26px,4.8vw,42px);letter-spacing:-.035em}
h3{font-size:20px}
p{margin:0 0 16px}.lead{font-size:18px;color:var(--gray-500)}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;box-shadow:0 12px 28px rgba(41,128,254,.25);transition:transform .2s ease,box-shadow .2s ease;border:none;cursor:pointer;white-space:nowrap}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(41,128,254,.30)}
.text-link{display:inline-flex;align-items:center;color:var(--primary);font-weight:800;margin-top:6px}.text-link::after{content:"→";margin-left:6px}
.web3-dashboard-hero{padding:64px 0 34px;position:relative;overflow:hidden}
.web3-dashboard-hero::before{content:"";position:absolute;inset:18px -160px auto auto;width:420px;height:420px;background:radial-gradient(circle,rgba(41,128,254,.18),transparent 65%);pointer-events:none}
.hero-grid{display:grid;gap:28px;align-items:center}
.hero-copy{padding:30px;border:1px solid var(--gray-100);background:rgba(255,255,255,.86);border-radius:30px;box-shadow:var(--shadow)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.hero-tags span{padding:8px 12px;border-radius:999px;background:var(--gray-50);border:1px solid var(--gray-100);font-size:13px;color:var(--gray-500);font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}
.hero-visual{position:relative;padding:18px;border-radius:32px;background:linear-gradient(145deg,#fff,var(--primary-faint));border:1px solid var(--gray-100);box-shadow:var(--shadow)}
.device-frame{max-width:320px;margin:0 auto;padding:12px;border-radius:30px;background:#fff;border:1px solid var(--gray-100);box-shadow:0 28px 60px rgba(16,24,40,.10)}
.device-frame img{border-radius:22px;object-fit:cover;width:100%}
.status-panel{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}.status-card{padding:14px;border:1px solid var(--gray-100);border-radius:18px;background:#fff}.status-card strong{display:block;color:var(--gray-900);font-size:14px}.status-card span{font-size:12px;color:var(--gray-500)}
.service-index{display:grid;gap:14px}.service-card{padding:20px;border:1px solid var(--gray-100);border-radius:22px;background:#fff;box-shadow:0 10px 28px rgba(16,24,40,.04);transition:transform .2s ease,border-color .2s ease}.service-card:hover{transform:translateY(-3px);border-color:rgba(41,128,254,.35)}.service-card .tag{display:inline-flex;margin-bottom:12px;color:var(--primary);font-weight:900;font-size:13px}.service-card p{color:var(--gray-500);font-size:15px;margin-bottom:8px}
.module-grid{display:grid;gap:20px}.feature-panel{border:1px solid var(--gray-100);border-radius:30px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.feature-panel .panel-body{padding:26px}.feature-panel .panel-image{padding:22px;background:linear-gradient(145deg,var(--primary-faint),#fff);display:flex;align-items:center;justify-content:center}.feature-panel .panel-image img{max-height:360px;object-fit:contain;border-radius:22px}.feature-list{display:grid;gap:10px;margin:18px 0}.feature-list li{list-style:none;padding:12px 14px;border-radius:16px;background:var(--gray-50);border:1px solid var(--gray-100)}
.web3-ecosystem-section .feature-panel,.swap-service-section .feature-panel{background:linear-gradient(180deg,#fff,#f8fbff)}
.hardware-wallet-section{background:linear-gradient(180deg,var(--primary-faint),#fff)}.hardware-wallet-section .feature-panel{background:#fff}
.privacy-boundary-section .boundary-grid{display:grid;gap:16px}.boundary-card{padding:22px;border:1px solid var(--gray-100);border-radius:22px;background:#fff}.boundary-card strong{color:var(--gray-900)}
.submit-chain-section .submit-grid,.developer-center-section .developer-grid{display:grid;gap:18px}.info-card{padding:22px;border:1px solid var(--gray-100);border-radius:24px;background:#fff;box-shadow:0 12px 28px rgba(16,24,40,.04)}
.code-panel{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;background:#111827;color:#EAF3FF;border-radius:22px;padding:22px;overflow:hidden}.code-panel span{display:block;color:#93C5FD;margin:4px 0}.code-panel b{color:#fff}.code-panel small{color:#C7D2FE}
.process-steps{display:grid;gap:14px}.step-card{position:relative;padding:22px;border:1px solid var(--gray-100);border-radius:24px;background:#fff}.step-number{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;font-weight:900;margin-bottom:12px}
.risk-grid{display:grid;gap:14px}.risk-card{padding:20px;border-radius:22px;background:#fff;border:1px solid var(--gray-100);border-left:4px solid var(--primary)}.risk-card h3{font-size:18px}.risk-card p{color:var(--gray-500);font-size:15px}.risk-card strong{color:var(--gray-900)}
.faq-list{display:grid;gap:14px}.faq-item{padding:20px;border:1px solid var(--gray-100);border-radius:22px;background:#fff}.faq-item h3{font-size:18px;margin-bottom:8px}.faq-item p{color:var(--gray-500);margin:0}
.cta-section{padding:48px 0 70px}.cta-card{text-align:center;padding:34px;border:1px solid rgba(41,128,254,.14);border-radius:30px;background:linear-gradient(135deg,#fff,var(--primary-faint));box-shadow:var(--shadow)}
.page-hero{padding:48px 0 24px}.page-hero-card{padding:28px;border:1px solid var(--gray-100);border-radius:30px;background:linear-gradient(135deg,#fff,var(--primary-faint));box-shadow:var(--shadow)}.page-hero .download-btn{margin-top:12px}
.content-layout{display:grid;gap:18px;padding:24px 0 68px}.content-card,.side-panel{background:#fff;border:1px solid var(--gray-100);border-radius:26px;padding:24px}.content-card h2{font-size:28px}.content-card p,.side-panel p{color:var(--gray-500)}.side-panel{align-self:start;background:linear-gradient(180deg,#fff,var(--primary-faint))}.checklist{padding:0;margin:16px 0 0;display:grid;gap:10px}.checklist li{list-style:none;padding:12px 14px;background:var(--gray-50);border:1px solid var(--gray-100);border-radius:16px}.note-box{padding:18px;border-radius:20px;background:var(--primary-soft);border:1px solid rgba(41,128,254,.16);color:var(--gray-700);margin:18px 0}.category-grid{display:grid;gap:14px}.mini-card{padding:18px;border:1px solid var(--gray-100);background:#fff;border-radius:20px}.mini-card h3{font-size:17px}
.download-flow{counter-reset:item;display:grid;gap:14px;margin:20px 0}.download-flow li{list-style:none;padding:18px 18px 18px 58px;background:#fff;border:1px solid var(--gray-100);border-radius:20px;position:relative}.download-flow li::before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900}
.site-footer{background:#0f172a;color:#cbd5e1;padding:44px 0 20px}.footer-grid{display:grid;gap:24px}.footer-brand{color:#fff;font-size:20px;font-weight:900;margin-bottom:10px}.site-footer h2{font-size:16px;color:#fff;margin-bottom:12px}.site-footer a{display:block;color:#cbd5e1;padding:4px 0}.site-footer p{color:#cbd5e1}.footer-bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:28px;padding-top:18px;font-size:13px;color:#94a3b8}
@media (min-width:700px){
    .service-index{grid-template-columns:repeat(2,1fr)}
    .module-grid,.privacy-boundary-section .boundary-grid,.submit-chain-section .submit-grid,.developer-center-section .developer-grid,.risk-grid,.category-grid{grid-template-columns:repeat(2,1fr)}
    .process-steps{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (min-width:960px){
    .nav-toggle-label{display:none}.site-nav{position:static;display:flex;flex-direction:row;align-items:center;gap:4px;padding:0;background:transparent;border:0;box-shadow:none}.site-nav a{font-size:14px;padding:8px 10px}
    .web3-dashboard-hero{padding:86px 0 50px}.hero-grid{grid-template-columns:1.04fr .96fr;gap:36px}.hero-copy{padding:42px}.service-index{grid-template-columns:repeat(4,1fr)}.service-card:first-child{grid-column:span 2}.service-card:nth-child(3){grid-row:span 2}.feature-panel{display:grid;grid-template-columns:1.05fr .95fr;align-items:center}.feature-panel.reverse .panel-body{order:2}.feature-panel.reverse .panel-image{order:1}.content-layout{grid-template-columns:minmax(0,1fr) 330px}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:420px){.container{width:min(100% - 24px,1120px)}.hero-copy,.page-hero-card,.cta-card{padding:22px}.status-panel{grid-template-columns:1fr}.download-btn{width:100%;min-height:52px}.hero-actions{align-items:stretch}.section{padding:44px 0}.content-card,.side-panel{padding:20px}}