:root{
  --primary:#2980FE;
  --primary-dark:#1766d8;
  --text:#1f2937;
  --muted:#667085;
  --soft:#f4f7fb;
  --soft-blue:#eef6ff;
  --line:#e5eaf2;
  --white:#ffffff;
  --shadow:0 18px 45px rgba(41,128,254,.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%,#f7faff 42%,#fff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,calc(100% - 36px));margin:0 auto}
.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{width:min(1200px,calc(100% - 28px));height:68px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#101828;white-space:nowrap}.logo{width:34px;height:34px;object-fit:contain}.site-nav{display:flex;align-items:center;gap:6px}.site-nav a{font-size:14px;color:#344054;padding:9px 11px;border-radius:999px}.site-nav a:hover{background:var(--soft-blue);color:var(--primary)}
.nav-toggle{display:none}.nav-toggle-label{display:none;flex-direction:column;gap:5px;cursor:pointer}.nav-toggle-label span{width:24px;height:2px;background:#1f2937;border-radius:2px}
.web3-hero,.page-hero{position:relative;overflow:hidden}.web3-hero:before,.gradient-bg:before{content:"";position:absolute;inset:auto -140px -140px auto;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(41,128,254,.18),rgba(41,128,254,0) 70%);pointer-events:none}.web3-hero{padding:60px 0 34px;background:linear-gradient(135deg,#fff 0%,#f3f8ff 58%,#fff 100%)}.hero-grid{display:grid;gap:34px;align-items:center}.eyebrow,.category-badge{display:inline-flex;align-items:center;width:max-content;gap:8px;padding:7px 12px;border:1px solid rgba(41,128,254,.22);border-radius:999px;background:#fff;color:var(--primary);font-size:13px;font-weight:750}.hero-title{font-size:clamp(36px,7vw,68px);line-height:1.06;letter-spacing:-.04em;margin:18px 0 18px}.hero-copy{font-size:18px;color:#475467;max-width:650px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 25px;border-radius:999px;background:var(--primary);color:#fff!important;font-weight:800;box-shadow:0 12px 26px rgba(41,128,254,.24);transition:.22s ease;border:0}.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark)}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:25px 0}.trust-tags,.floating-tags{display:flex;flex-wrap:wrap;gap:10px}.trust-tags span,.floating-tags span,.pill{font-size:13px;padding:7px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#475467}.hero-visual{position:relative;min-height:360px;display:grid;place-items:center}.phone-shell{position:relative;width:min(420px,86vw);padding:22px;border-radius:36px;background:linear-gradient(160deg,#fff,#edf5ff);box-shadow:var(--shadow);border:1px solid var(--line)}.phone-shell img{border-radius:28px;margin:auto;max-height:510px;object-fit:contain}.floating-tags{position:absolute;inset:0;pointer-events:none}.floating-tags span{position:absolute;background:rgba(255,255,255,.92);box-shadow:0 12px 24px rgba(16,24,40,.08);font-weight:750;color:#1f2937}.floating-tags span:nth-child(1){left:0;top:14%}.floating-tags span:nth-child(2){right:0;top:24%}.floating-tags span:nth-child(3){left:4%;bottom:18%}.floating-tags span:nth-child(4){right:8%;bottom:10%}
.section{padding:48px 0}.section-head{margin-bottom:22px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.15;margin:0 0 10px;letter-spacing:-.025em}.section-head p{color:var(--muted);max-width:820px;margin:0}.ecosystem-nav,.category-grid,.risk-grid,.faq-grid,.cards-grid{display:grid;gap:16px}.ecosystem-card,.mini-card,.risk-card,.faq-item,.info-card,.step-card{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 28px rgba(16,24,40,.04)}.ecosystem-card{position:relative;overflow:hidden}.ecosystem-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary)}.ecosystem-card strong,.mini-card strong{display:block;font-size:18px;margin-bottom:6px}.ecosystem-card p,.mini-card p,.risk-card p,.faq-item p,.info-card p,.step-card p{color:var(--muted);margin:0}.text-link{display:inline-flex;margin-top:12px;color:var(--primary);font-weight:800}.text-link:after{content:"→";margin-left:6px}.big-feature-card{display:grid;gap:24px;align-items:center;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px;box-shadow:var(--shadow);overflow:hidden}.big-feature-card.alt{background:linear-gradient(135deg,#f8fbff,#fff)}.feature-media{border-radius:24px;background:linear-gradient(160deg,#eef6ff,#fff);border:1px solid var(--line);padding:20px;min-height:260px;display:grid;place-items:center}.feature-media img{max-height:360px;object-fit:contain}.feature-content h2,.feature-content h3{font-size:clamp(26px,4vw,42px);line-height:1.18;margin:0 0 12px}.feature-content p{color:#536072}.check-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.check-list li{padding:10px 12px 10px 36px;border:1px solid var(--line);border-radius:14px;background:#fbfdff;position:relative;color:#465160}.check-list li:before{content:"";position:absolute;left:14px;top:16px;width:8px;height:8px;border-radius:50%;background:var(--primary)}.privacy-section,.submit-chain-section,.developer-center-section{border-radius:var(--radius);padding:24px;border:1px solid var(--line);background:linear-gradient(135deg,#fff,#f4f8ff);box-shadow:var(--shadow)}.split-grid{display:grid;gap:18px}.code-panel{background:#111827;color:#dbeafe;border-radius:22px;padding:20px;overflow:hidden}.code-panel pre{margin:0;white-space:pre-wrap;font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;line-height:1.7}.code-panel strong{color:#fff}.process-steps{display:grid;gap:14px;counter-reset:step}.step-card{position:relative;padding-left:72px;min-height:112px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:900}.risk-card{border-top:4px solid var(--primary)}.risk-card h3,.faq-item h3{margin:0 0 8px;font-size:18px}.risk-card .suggest{margin-top:12px;padding:10px;border-radius:14px;background:var(--soft-blue);color:#31506f}.cta-section{margin:48px auto;padding:36px 22px;text-align:center;border-radius:32px;background:linear-gradient(135deg,#edf6ff,#fff);border:1px solid var(--line);box-shadow:var(--shadow)}.cta-section h2{font-size:clamp(28px,5vw,46px);line-height:1.15;margin:0 0 10px}.cta-section p{color:var(--muted);max-width:700px;margin:0 auto 22px}.page-hero{padding:56px 0 28px;background:linear-gradient(135deg,#fff,#f3f8ff)}.page-hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;letter-spacing:-.035em;margin:16px 0 12px}.page-hero p{color:#536072;max-width:820px;font-size:18px}.content-layout{display:grid;gap:20px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 14px 34px rgba(16,24,40,.05)}.article-card h2{font-size:26px;margin:0 0 12px}.article-card p{color:#4b5563}.side-panel{background:linear-gradient(180deg,#fff,#f4f8ff);border:1px solid var(--line);border-radius:26px;padding:22px;position:sticky;top:88px}.side-panel h3{margin:0 0 12px}.side-panel a{display:block;padding:10px 0;color:var(--primary);font-weight:750;border-bottom:1px solid var(--line)}.action-box{margin-top:22px;padding:20px;border-radius:22px;background:var(--soft-blue);border:1px solid rgba(41,128,254,.18)}.download-only{display:flex;justify-content:flex-start;margin-top:18px}.site-footer{margin-top:48px;background:#101828;color:#d0d5dd}.footer-grid{display:grid;gap:24px;padding:38px 0}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:850;font-size:18px}.footer-brand img{width:32px;height:32px}.site-footer h3{color:#fff;margin:0 0 10px}.site-footer p{color:#aeb8c8;margin:12px 0 0;max-width:560px}.site-footer a{display:block;color:#d0d5dd;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding:16px;color:#98a2b3;font-size:13px}
@media (max-width:860px){.site-nav{position:absolute;left:14px;right:14px;top:68px;display:none;flex-direction:column;align-items:stretch;padding:14px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow)}.site-nav a{padding:12px}.nav-toggle-label{display:flex}.nav-toggle:checked~.site-nav{display:flex}.hero-visual{min-height:320px}.floating-tags span{font-size:12px}.content-layout{grid-template-columns:1fr}.side-panel{position:relative;top:auto}.download-only .download-btn,.hero-actions .download-btn{width:100%}}
@media (min-width:640px){.ecosystem-nav{grid-template-columns:repeat(2,1fr)}.category-grid,.risk-grid,.faq-grid,.cards-grid{grid-template-columns:repeat(2,1fr)}.split-grid{grid-template-columns:1.1fr .9fr}.process-steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:920px){.web3-hero{padding:78px 0 56px}.hero-grid{grid-template-columns:1.03fr .97fr}.ecosystem-nav{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.big-feature-card{grid-template-columns:1fr 1fr;padding:34px}.big-feature-card.reverse .feature-media{order:2}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.5fr .7fr .7fr}.process-steps{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1180px){.process-steps{grid-template-columns:repeat(6,1fr)}.step-card{padding:72px 16px 20px}.step-card:before{left:16px;top:20px}.ecosystem-nav .wide{grid-column:span 2}}