:root{
    --primary:#2980FE;
    --primary-dark:#1266df;
    --text:#263142;
    --muted:#667085;
    --line:#e7edf5;
    --soft:#f6f9fd;
    --soft-blue:#eef6ff;
    --white:#ffffff;
    --shadow:0 20px 50px rgba(30,78,140,.10);
    --radius:26px;
}
*{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(--text);background:linear-gradient(180deg,#fff 0%,#f8fbff 38%,#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(100% - 32px,1180px);margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{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:#172033;letter-spacing:.02em}
.brand img{width:38px;height:38px;border-radius:12px;object-fit:cover;box-shadow:0 8px 22px rgba(41,128,254,.18)}
.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:14px;width:44px;height:44px;font-size:22px;color:#223048;display:flex;align-items:center;justify-content:center}
.site-nav{display:none;position:absolute;left:16px;right:16px;top:78px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.site-nav.is-open{display:grid;gap:6px}
.site-nav a{padding:10px 12px;border-radius:14px;color:#344054;font-size:15px}
.site-nav a:hover{background:var(--soft-blue);color:var(--primary)}
.badge{display:inline-flex;align-items:center;gap:8px;color:var(--primary);background:var(--soft-blue);border:1px solid rgba(41,128,254,.16);font-weight:800;border-radius:999px;padding:7px 12px;font-size:13px}
.section{padding:62px 0}
.section.alt{background:linear-gradient(180deg,#f5f9ff,#ffffff)}
.section-title{font-size:clamp(28px,5vw,46px);line-height:1.18;margin:12px 0 14px;color:#132033;letter-spacing:-.04em}
.section-lead{color:var(--muted);font-size:17px;max-width:760px;margin:0 0 26px}
.web3-hero{padding:54px 0 42px;position:relative;overflow:hidden;background:radial-gradient(circle at 84% 18%,rgba(41,128,254,.20),transparent 34%),linear-gradient(180deg,#fff,#f4f9ff)}
.web3-hero:before{content:"";position:absolute;inset:auto -10% 0 -10%;height:150px;background:linear-gradient(90deg,rgba(41,128,254,.06),rgba(255,255,255,0));transform:skewY(-2deg)}
.hero-grid{position:relative;display:grid;gap:34px;align-items:center}
.hero-copy h1{font-size:clamp(36px,8vw,72px);line-height:1.04;letter-spacing:-.06em;margin:14px 0 18px;color:#101828}
.hero-copy p{font-size:18px;color:#526174;margin:0 0 22px;max-width:680px}
.hero-tags,.mini-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-tags span,.mini-tags span{display:inline-flex;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:#405067;font-size:14px;box-shadow:0 8px 18px rgba(21,48,88,.05)}
.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;box-shadow:0 16px 34px rgba(41,128,254,.26);transition:transform .2s ease,box-shadow .2s ease,background .2s ease;border:0;cursor:pointer}
.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 18px 40px rgba(41,128,254,.32)}
.download-btn.is-clicked{transform:scale(.98)}
.hero-visual{position:relative;min-height:360px;display:flex;align-items:center;justify-content:center;padding:22px;border-radius:32px;background:linear-gradient(145deg,#fff,#eef6ff);border:1px solid rgba(41,128,254,.12);box-shadow:var(--shadow);overflow:hidden}
.hero-visual:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(41,128,254,.10);filter:blur(20px)}
.hero-visual img{position:relative;z-index:2;max-height:430px;object-fit:contain}
.float-label{position:absolute;z-index:3;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 13px;color:#2b3a51;font-weight:800;font-size:13px;box-shadow:0 14px 34px rgba(24,56,104,.12)}
.float-label.one{left:18px;top:28px}.float-label.two{right:18px;top:72px}.float-label.three{left:24px;bottom:58px}.float-label.four{right:24px;bottom:24px}
.ecosystem-nav{padding:34px 0 52px;background:#fff}
.ecosystem-grid{display:grid;gap:14px;margin-top:22px}
.ecosystem-card,.feature-card,.risk-card,.faq-card,.step-card,.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 34px rgba(24,56,104,.06)}
.ecosystem-card{min-height:178px;display:flex;flex-direction:column;justify-content:space-between;transition:.2s ease}
.ecosystem-card:hover{transform:translateY(-4px);border-color:rgba(41,128,254,.42)}
.ecosystem-card small{color:var(--primary);font-weight:900}.ecosystem-card h3,.feature-card h3,.risk-card h3,.info-card h3{margin:8px 0;color:#18263b}.ecosystem-card p,.feature-card p,.risk-card p,.info-card p{color:var(--muted);margin:0 0 14px}.text-link{color:var(--primary);font-weight:800}.text-link:after{content:" →"}
.split-section{display:grid;gap:28px;align-items:center}.split-section.reverse .media-card{order:-1}
.media-card{border-radius:32px;background:linear-gradient(145deg,#fff,#eef6ff);border:1px solid rgba(41,128,254,.12);box-shadow:var(--shadow);padding:24px;min-height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-card img{max-height:380px;object-fit:contain}
.feature-list{display:grid;gap:12px;margin:20px 0 24px;padding:0;list-style:none}.feature-list li{position:relative;padding-left:28px;color:#435269}.feature-list li:before{content:"";position:absolute;left:0;top:.7em;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px rgba(41,128,254,.12)}
.web3-section,.digital-assets-section{background:#fff}.hardware-wallet-section,.swap-section{background:linear-gradient(180deg,#f5f9ff,#fff)}
.privacy-section .privacy-grid,.submit-chain-section .submit-grid,.developer-center-section .dev-grid{display:grid;gap:18px;margin-top:20px}
.privacy-panel{background:linear-gradient(135deg,#fff,#eef6ff);border:1px solid rgba(41,128,254,.16);border-radius:32px;padding:28px;box-shadow:var(--shadow)}
.submit-panel{background:#fff;border:1px solid var(--line);border-left:6px solid var(--primary);border-radius:28px;padding:24px;box-shadow:0 14px 34px rgba(24,56,104,.07)}
.dev-console{background:#12213a;color:#e9f2ff;border-radius:28px;padding:22px;box-shadow:0 20px 60px rgba(18,33,58,.18);font-family:"SFMono-Regular",Consolas,monospace;overflow:auto}.dev-console code{white-space:pre-wrap;color:#d8eaff}.dev-console .blue{color:#7bb5ff}
.process-steps{display:grid;gap:14px;margin-top:24px}.step-card{position:relative;padding-top:28px}.step-no{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:14px;background:var(--primary);color:#fff;font-weight:900;margin-bottom:12px}.step-card h3{margin:0 0 6px}.step-card p{color:var(--muted);margin:0 0 12px}
.risk-grid{display:grid;gap:14px;margin-top:24px}.risk-card{border-top:5px solid var(--primary)}.risk-card strong{display:block;color:#18263b;margin:0 0 8px}.risk-card em{display:block;font-style:normal;color:#526174;background:var(--soft);border-radius:16px;padding:10px;margin:12px 0}
.faq-list{display:grid;gap:14px;margin-top:24px}.faq-card h3{margin:0 0 8px}.faq-card p{color:var(--muted);margin:0}
.cta-section{padding:70px 0;background:radial-gradient(circle at 20% 10%,rgba(41,128,254,.16),transparent 30%),linear-gradient(135deg,#eef6ff,#fff)}.cta-card{text-align:center;background:#fff;border:1px solid rgba(41,128,254,.14);border-radius:34px;padding:34px;box-shadow:var(--shadow)}.cta-card p{color:var(--muted);max-width:680px;margin:0 auto 24px}
.page-hero{padding:58px 0 28px;background:linear-gradient(180deg,#f4f9ff,#fff)}.page-hero h1{font-size:clamp(34px,7vw,58px);line-height:1.1;letter-spacing:-.05em;margin:14px 0;color:#111c2f}.page-hero p{color:var(--muted);font-size:18px;max-width:820px;margin:0}.content-layout{display:grid;gap:22px;padding:36px 0 66px}.article-card{background:#fff;border:1px solid var(--line);border-radius:32px;padding:26px;box-shadow:var(--shadow)}.article-card h2{margin-top:0;color:#15233a}.article-card p{color:#4d5c70}.side-panel{background:linear-gradient(180deg,#fff,#f4f9ff);border:1px solid var(--line);border-radius:32px;padding:24px;align-self:start;box-shadow:0 12px 34px rgba(24,56,104,.06)}.check-list{display:grid;gap:10px;list-style:none;padding:0;margin:16px 0}.check-list li{background:#f7faff;border:1px solid #e7edf5;border-radius:16px;padding:12px;color:#44546a}.category-grid{display:grid;gap:14px;margin-top:18px}.safety-panel{background:#fff;border:1px solid var(--line);border-radius:26px;padding:20px;border-left:5px solid var(--primary)}
.download-page-card{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:34px;padding:30px;box-shadow:var(--shadow)}
.site-footer{background:#182233;color:#d8e2f0;padding:48px 0 0}.site-footer a{display:block;color:#d8e2f0;margin:8px 0}.site-footer p{color:#aebbd0}.footer-grid{display:grid;gap:24px}.footer-grid h3{color:#fff;margin:0 0 12px}.footer-brand span{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding:18px 0;color:#aebbd0;font-size:14px}
@media (min-width:700px){.ecosystem-grid{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}.risk-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}
@media (min-width:980px){.nav-toggle{display:none}.site-nav{position:static;display:flex;align-items:center;gap:2px;padding:0;background:transparent;border:0;box-shadow:none}.site-nav a{font-size:14px;padding:9px 10px}.hero-grid{grid-template-columns:1.02fr .98fr}.web3-hero{padding:82px 0 58px}.ecosystem-grid{grid-template-columns:repeat(7,1fr)}.ecosystem-card{padding:18px;min-height:220px}.split-section{grid-template-columns:1fr 1fr}.split-section.reverse .media-card{order:2}.privacy-section .privacy-grid,.submit-chain-section .submit-grid,.developer-center-section .dev-grid{grid-template-columns:1fr 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) 330px}.section{padding:82px 0}.page-hero{padding:76px 0 34px}}
@media (min-width:1160px){.site-nav a{font-size:15px;padding:9px 12px}.hero-visual{min-height:500px}.risk-grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:360px){.container{width:min(100% - 22px,1180px)}.download-btn{width:100%}.hero-tags span,.mini-tags span{width:100%;justify-content:center}.float-label{display:none}}