/* Mobile first Web3 wallet platform style */
:root{
  --primary:#2980FE;
  --primary-soft:#EAF3FF;
  --primary-line:#CFE2FF;
  --text:#202938;
  --muted:#657386;
  --subtle:#F6F9FE;
  --panel:#FFFFFF;
  --line:#E4EAF2;
  --deep:#111827;
  --radius:24px;
  --shadow:0 18px 45px rgba(41,128,254,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei",Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0%,#f8fbff 36%,#fff 100%);line-height:1.72;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:30;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{width:min(1180px,calc(100% - 28px));margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);letter-spacing:.2px}
.logo-img{width:36px;height:36px;object-fit:contain;border-radius:10px}
.brand-text{font-size:17px;white-space:nowrap}
.menu-toggle{border:1px solid var(--line);background:#fff;border-radius:14px;padding:8px 12px;font-size:20px;color:var(--text)}
.site-nav{display:none;position:absolute;left:14px;right:14px;top:72px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:12px;grid-template-columns:1fr;gap:4px}
.site-nav.open{display:grid}
.site-nav a{padding:10px 12px;border-radius:12px;color:var(--muted);font-size:14px;font-weight:650}
.site-nav a:hover,.site-nav a.active{background:var(--primary-soft);color:var(--primary)}
main{min-height:60vh}
.section{padding:54px 0}
.section-tight{padding:34px 0}
.section-title{max-width:760px;margin:0 0 22px}
.section-title.center{text-align:center;margin:0 auto 26px}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--primary-line);background:var(--primary-soft);color:var(--primary);font-weight:800;border-radius:999px;padding:7px 12px;font-size:13px;line-height:1.2}
h1{font-size:clamp(34px,8vw,62px);line-height:1.08;margin:16px 0 18px;letter-spacing:-.04em;color:var(--deep)}
h2{font-size:clamp(25px,5vw,38px);line-height:1.18;margin:0 0 14px;letter-spacing:-.025em;color:var(--deep)}
h3{font-size:20px;line-height:1.3;margin:0 0 8px;color:var(--deep)}
p{margin:0 0 14px;color:var(--muted)}
.lead{font-size:18px;color:#526071;max-width:720px}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 22px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:850;box-shadow:0 15px 30px rgba(41,128,254,.22);border:1px solid var(--primary);transition:transform .2s ease,box-shadow .2s ease;white-space:nowrap}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(41,128,254,.28)}
.link-arrow{display:inline-flex;align-items:center;color:var(--primary);font-weight:800;margin-top:6px}
.link-arrow::after{content:"→";margin-left:6px}
.web3-dashboard-hero{position:relative;overflow:hidden;padding:54px 0 38px;background:radial-gradient(circle at 85% 5%,rgba(41,128,254,.15),transparent 32%),linear-gradient(180deg,#fff,#f7fbff)}
.web3-dashboard-hero::before{content:"";position:absolute;right:-80px;top:90px;width:260px;height:260px;background:rgba(41,128,254,.08);border-radius:50%;filter:blur(8px)}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.hero-copy{padding-top:10px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:24px 0 20px}
.security-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.security-tags span{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:#445266;font-weight:700;font-size:13px}
.hero-panel{background:rgba(255,255,255,.84);border:1px solid var(--line);border-radius:30px;padding:18px;box-shadow:var(--shadow);position:relative}
.product-frame{display:grid;grid-template-columns:1fr;gap:16px;align-items:center;background:linear-gradient(135deg,#f7fbff,#fff);border-radius:24px;padding:18px;border:1px solid var(--line)}
.product-frame img{margin:0 auto;max-height:390px;object-fit:contain}
.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.status-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:13px;min-height:92px}
.status-card strong{display:block;color:var(--deep);font-size:15px;margin-bottom:4px}
.status-card span{display:block;color:var(--muted);font-size:12px;line-height:1.45}
.service-index{display:grid;grid-template-columns:1fr;gap:14px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 12px 28px rgba(15,23,42,.04);min-height:210px}
.service-card .tag{display:inline-flex;background:var(--primary-soft);color:var(--primary);font-weight:850;border-radius:999px;padding:4px 9px;font-size:12px;margin-bottom:12px}
.service-card p{font-size:15px}
.feature-panel,.digital-assets-hub,.web3-ecosystem-section,.hardware-wallet-section,.swap-service-section,.privacy-boundary-section,.submit-chain-section,.developer-center-section{border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow);padding:22px;overflow:hidden}
.digital-assets-hub,.swap-service-section{display:grid;grid-template-columns:1fr;gap:22px;align-items:center;background:linear-gradient(135deg,#fff 0%,#f4f9ff 100%)}
.web3-ecosystem-section,.hardware-wallet-section{display:grid;grid-template-columns:1fr;gap:22px;align-items:center}
.hardware-wallet-section{background:linear-gradient(135deg,#f8fbff 0%,#fff 100%)}
.feature-image{border-radius:26px;background:#f4f8ff;border:1px solid var(--line);padding:18px;display:flex;align-items:center;justify-content:center;min-height:260px}
.feature-image img{max-height:360px;object-fit:contain;margin:auto}
.check-list{display:grid;gap:10px;margin:18px 0 8px;padding:0;list-style:none}
.check-list li{position:relative;padding-left:28px;color:#415066}
.check-list li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:50%;background:var(--primary);box-shadow:inset 0 0 0 4px #dcebff}
.boundary-grid,.submit-grid,.developer-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:18px}
.boundary-card,.submit-card,.doc-card,.safety-panel,.content-card{border:1px solid var(--line);background:#fff;border-radius:22px;padding:18px}
.boundary-card strong,.submit-card strong,.doc-card strong{display:block;color:var(--deep);margin-bottom:6px}
.privacy-boundary-section{background:linear-gradient(135deg,#f6faff,#fff)}
.submit-chain-section{background:linear-gradient(135deg,#fff,#f6f9fe)}
.developer-center-section{background:#111827;color:#eef6ff;border-color:#202c41}
.developer-center-section h2,.developer-center-section h3,.developer-center-section strong{color:#fff}
.developer-center-section p,.developer-center-section li{color:#c6d3e2}
.code-panel{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;background:#0b1220;border:1px solid #25334a;border-radius:22px;padding:18px;color:#dbeafe;overflow:auto}
.code-panel span{display:block;color:#8ab6ff;margin:5px 0}
.doc-card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12)}
.process-steps{display:grid;grid-template-columns:1fr;gap:14px;counter-reset:step}
.step-card{counter-increment:step;border:1px solid var(--line);background:#fff;border-radius:22px;padding:18px;position:relative;overflow:hidden}
.step-card::before{content:counter(step, decimal-leading-zero);display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:14px;background:var(--primary-soft);color:var(--primary);font-weight:900;margin-bottom:12px}
.risk-grid{display:grid;grid-template-columns:1fr;gap:14px}
.risk-card{border:1px solid var(--line);border-left:4px solid var(--primary);background:#fff;border-radius:20px;padding:18px}
.risk-card .risk-label{display:inline-flex;background:#f6f9fe;border:1px solid var(--line);border-radius:999px;padding:3px 9px;color:#536173;font-size:12px;font-weight:800;margin-bottom:9px}
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}
.faq-item h3{font-size:18px}
.cta-section{margin:50px auto 8px;border:1px solid var(--primary-line);border-radius:30px;background:linear-gradient(135deg,#f2f8ff,#fff);padding:34px 20px;text-align:center;box-shadow:var(--shadow)}
.cta-section p{margin-left:auto;margin-right:auto;max-width:640px}
.page-hero{padding:44px 0 20px;background:linear-gradient(180deg,#fff,#f7fbff)}
.page-layout{display:grid;grid-template-columns:1fr;gap:22px;align-items:start;padding:28px 0 58px}
.article-panel{background:#fff;border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow)}
.article-panel .download-btn{margin-top:18px}
.info-grid{display:grid;grid-template-columns:1fr;gap:14px;margin:22px 0}
.note-box{background:var(--primary-soft);border:1px solid var(--primary-line);border-radius:22px;padding:18px;color:#334155}
.side-panel{background:#fff;border:1px solid var(--line);border-radius:26px;padding:20px;box-shadow:0 12px 28px rgba(15,23,42,.04)}
.side-panel a{display:block;padding:10px 0;color:var(--primary);font-weight:800;border-bottom:1px solid var(--line)}
.side-panel a:last-child{border-bottom:0}
.download-steps{display:grid;gap:12px;margin:20px 0}
.download-step{border:1px solid var(--line);background:#fff;border-radius:20px;padding:16px;display:flex;gap:14px;align-items:flex-start}
.download-step span{flex:0 0 34px;width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary);font-weight:900;display:inline-flex;align-items:center;justify-content:center}
.category-grid{display:grid;grid-template-columns:1fr;gap:14px}
.site-footer{background:#f5f8fd;border-top:1px solid var(--line);padding-top:34px;color:#536173}
.footer-grid{display:grid;grid-template-columns:1fr;gap:22px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--deep);font-size:18px;margin-bottom:12px}
.footer-brand img{width:34px;height:34px;object-fit:contain;border-radius:9px}
.site-footer h2{font-size:15px;margin:0 0 10px;color:#1f2937}
.site-footer a{display:block;color:#596779;margin:7px 0;font-size:14px}
.footer-bottom{text-align:center;border-top:1px solid var(--line);margin-top:28px;padding:18px 14px;font-size:13px;color:#728095}
@media (min-width:640px){
  .service-index,.risk-grid,.category-grid,.info-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .status-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media (min-width:920px){
  .menu-toggle{display:none}
  .site-nav{position:static;display:flex;align-items:center;justify-content:flex-end;gap:4px;background:transparent;border:0;border-radius:0;box-shadow:none;padding:0}
  .site-nav a{font-size:14px;padding:8px 10px}
  .web3-dashboard-hero{padding:78px 0 56px}
  .hero-grid{grid-template-columns:minmax(0,1.02fr) minmax(420px,.98fr);gap:42px}
  .product-frame{grid-template-columns:.8fr 1.2fr}
  .service-index{grid-template-columns:repeat(4,1fr)}
  .service-card:nth-child(1),.service-card:nth-child(3){grid-column:span 2}
  .digital-assets-hub,.web3-ecosystem-section,.hardware-wallet-section,.swap-service-section{grid-template-columns:1.05fr .95fr;padding:34px;gap:34px}
  .web3-ecosystem-section .feature-image,.hardware-wallet-section .feature-image{order:-1}
  .boundary-grid,.submit-grid,.developer-grid{grid-template-columns:repeat(3,1fr)}
  .developer-center-section{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;padding:34px}
  .process-steps{grid-template-columns:repeat(3,1fr)}
  .risk-grid{grid-template-columns:repeat(4,1fr)}
  .page-layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px}
  .article-panel{padding:34px}
  .side-panel{position:sticky;top:96px}
}
@media (min-width:1180px){
  .site-nav a{padding:8px 12px}
  .service-card{padding:24px}
}