:root{
  --blue:#2980FE;
  --blue-dark:#1268df;
  --blue-soft:#eef6ff;
  --bg:#f6f8fb;
  --bg-2:#f1f6fc;
  --white:#ffffff;
  --text:#273241;
  --muted:#667085;
  --line:#dde5ef;
  --shadow:0 18px 48px rgba(39,50,65,.08);
  --radius:24px;
}
*{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:var(--white);line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{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;font-size:18px;color:#1b2b43;letter-spacing:.2px}
.brand img{width:38px;height:38px;border-radius:12px}
.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(--line);border-radius:20px;box-shadow:var(--shadow)}
.site-nav.open{display:flex}
.site-nav a{font-size:14px;color:var(--muted);padding:10px 12px;border-radius:12px}
.site-nav a.active,.site-nav a:hover{color:var(--blue);background:var(--blue-soft)}
.nav-toggle{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:14px;width:42px;height:42px;font-size:20px}
.section{padding:64px 0}
.section.soft{background:var(--bg)}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(41,128,254,.18);background:var(--blue-soft);color:var(--blue);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#fff 0%,#f3f8ff 56%,#edf5ff 100%);padding:54px 0 44px}
.hero:before{content:"";position:absolute;right:-120px;top:-130px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(41,128,254,.22),rgba(41,128,254,0) 68%)}
.web3-hero{display:grid;gap:34px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-size:clamp(34px,8vw,64px);line-height:1.08;margin:16px 0;color:#13243a;letter-spacing:-1.3px}
.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 24px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:20px}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 22px;border-radius:999px;background:var(--blue);color:#fff;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.24);transition:.18s ease;border:0;white-space:nowrap}
.download-btn:hover{transform:translateY(-2px);background:var(--blue-dark)}
.safety-tags{display:flex;flex-wrap:wrap;gap:10px}
.safety-tags span{font-size:13px;color:#36506e;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:999px}
.hero-visual{position:relative;min-height:360px;display:grid;place-items:center}
.product-frame{position:relative;width:min(380px,86vw);border-radius:34px;background:rgba(255,255,255,.72);border:1px solid rgba(41,128,254,.16);box-shadow:var(--shadow);padding:20px}
.product-frame img{border-radius:26px;margin:auto;max-height:440px;object-fit:contain}
.float-label{position:absolute;background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 13px;font-size:13px;font-weight:800;color:#31516f;box-shadow:0 10px 28px rgba(39,50,65,.08)}
.label-1{left:-8px;top:16%}.label-2{right:-10px;top:28%}.label-3{left:4px;bottom:24%}.label-4{right:8px;bottom:12%}
.ecosystem-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:26px}
.ecosystem-card,.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 34px rgba(39,50,65,.05)}
.ecosystem-card strong{display:block;font-size:18px;color:#15243a;margin:8px 0}
.ecosystem-card p{margin:0 0 12px;color:var(--muted);font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:800;font-size:14px}
.text-link:after{content:"→"}
.section-title{max-width:760px;margin:0 0 28px}
.section-title h2{font-size:clamp(26px,5vw,42px);line-height:1.16;margin:12px 0;color:#16263c}
.section-title p{margin:0;color:var(--muted);font-size:16px}
.feature-split{display:grid;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:32px;padding:24px;box-shadow:var(--shadow)}
.feature-split.reverse .feature-media{order:-1}
.feature-media{background:linear-gradient(145deg,#f5f9ff,#ffffff);border:1px solid var(--line);border-radius:30px;padding:24px;min-height:240px;display:grid;place-items:center;position:relative;overflow:hidden}
.feature-media:before{content:"";position:absolute;width:220px;height:220px;background:rgba(41,128,254,.11);border-radius:50%;right:-80px;top:-60px}
.feature-media img{position:relative;z-index:1;max-height:360px;object-fit:contain}
.feature-copy h2{font-size:clamp(26px,5vw,40px);line-height:1.18;margin:12px 0;color:#16263c}
.feature-copy p{color:var(--muted);margin:0 0 14px}
.check-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}
.check-list li{position:relative;padding-left:26px;color:#3d5067}
.check-list li:before{content:"";position:absolute;left:0;top:.64em;width:10px;height:10px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(41,128,254,.12)}
.module-grid{display:grid;gap:16px}
.module-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px}
.module-card h3{margin:0 0 8px;font-size:20px;color:#15243a}
.module-card p{margin:0;color:var(--muted)}
.privacy-section .module-card{border-top:4px solid var(--blue)}
.submit-chain-section{background:linear-gradient(135deg,#f7fbff,#eef6ff)}
.partner-panel{display:grid;gap:18px;border:1px solid rgba(41,128,254,.16);background:#fff;border-radius:32px;padding:24px;box-shadow:var(--shadow)}
.dev-panel{background:#15243a;color:#dce8f7;border-radius:30px;padding:22px;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow);overflow:hidden}
.dev-panel code{display:block;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.7;color:#e9f3ff}
.developer-center-section{background:#f7f9fc}
.process-steps{display:grid;gap:14px;counter-reset:step}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 22px 22px 78px;min-height:116px}
.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:40px;height:40px;border-radius:14px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:900}
.step-card h3{margin:0 0 8px;color:#15243a}.step-card p{margin:0 0 10px;color:var(--muted);font-size:14px}
.risk-grid{display:grid;gap:14px}
.risk-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:22px;padding:20px}
.risk-card h3{margin:0 0 8px;font-size:18px}.risk-card p{margin:0 0 8px;color:var(--muted);font-size:14px}.risk-card b{color:#24364d}
.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:var(--muted)}
.cta-section{padding:64px 0;background:linear-gradient(135deg,#eef6ff,#fff);text-align:center}.cta-card{background:#fff;border:1px solid var(--line);border-radius:32px;padding:34px;box-shadow:var(--shadow)}.cta-card h2{font-size:clamp(26px,5vw,40px);margin:0 0 12px}.cta-card p{color:var(--muted);margin:0 auto 22px;max-width:640px}
.page-hero{background:linear-gradient(135deg,#fff,#f0f7ff);padding:52px 0 36px}.page-hero h1{font-size:clamp(32px,7vw,54px);line-height:1.1;margin:14px 0;color:#13243a}.page-hero p{color:var(--muted);font-size:17px;max-width:760px;margin:0}
.content-layout{display:grid;gap:22px;align-items:start}.content-main{display:grid;gap:18px}.content-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 10px 30px rgba(39,50,65,.04)}.content-card h2{margin:0 0 12px;font-size:26px}.content-card p{color:var(--muted);margin:0 0 12px}.content-card p:last-child{margin-bottom:0}.side-panel{background:#f7fbff;border:1px solid var(--line);border-radius:28px;padding:22px;position:sticky;top:96px}.side-panel h2,.side-panel h3{margin-top:0}.side-panel ul{padding-left:18px;color:var(--muted)}
.page-actions{margin-top:20px}
.guide-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}.guide-list li{background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:14px}.guide-list strong{display:block;color:#24364d;margin-bottom:4px}.guide-list span{color:var(--muted);font-size:14px}
.about-values{display:grid;gap:16px}.download-steps{display:grid;gap:14px;margin-top:22px}.download-step{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.download-step strong{color:var(--blue);display:block;margin-bottom:4px}.download-step p{margin:0;color:var(--muted)}
.site-footer{background:#16263c;color:#d9e3f1;padding:44px 0 22px}.site-footer .brand{color:#fff}.footer-grid{display:grid;gap:28px}.site-footer h3{color:#fff;margin:0 0 10px}.site-footer p{color:#afbdd0;margin:14px 0 0}.site-footer a:not(.brand){display:block;color:#c9d6e8;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;display:flex;flex-direction:column;gap:8px;color:#aebbd0;font-size:13px}
@media (min-width:700px){
  .ecosystem-nav{grid-template-columns:repeat(2,1fr)}
  .module-grid,.risk-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .about-values{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:960px){
  .nav-toggle{display:none}.site-nav{position:static;display:flex;flex-direction:row;align-items:center;gap:2px;padding:0;border:0;box-shadow:none;background:transparent}.site-nav a{font-size:14px;padding:8px 10px}
  .hero{padding:86px 0 66px}.web3-hero{grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);gap:54px}.hero-copy p{font-size:18px}.hero-visual{min-height:480px}
  .ecosystem-nav{grid-template-columns:repeat(4,1fr)}.ecosystem-card:nth-child(1),.ecosystem-card:nth-child(7){grid-column:span 2}
  .feature-split{grid-template-columns:1fr 1fr;padding:34px}.feature-split.reverse .feature-media{order:2}
  .module-grid{grid-template-columns:repeat(3,1fr)}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}
  .content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.4fr .8fr .8fr}.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}
}