:root{
  --primary:#2980FE;
  --primary-dark:#1769df;
  --blue-soft:#eef6ff;
  --blue-lighter:#f6faff;
  --white:#ffffff;
  --line:#e6edf5;
  --line-strong:#d7e3f0;
  --text:#243142;
  --muted:#687789;
  --gray:#f5f7fa;
  --gray2:#eef2f7;
  --shadow:0 18px 45px rgba(35,71,115,.08);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0%,#f7fbff 45%,#fff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:#102033;letter-spacing:.2px;white-space:nowrap}
.logo img{width:38px;height:38px;border-radius:12px;object-fit:contain;background:#fff;border:1px solid var(--line)}
.nav-toggle{display:none}.nav-trigger{width:42px;height:42px;border:1px solid var(--line);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:#fff}.nav-trigger span{width:18px;height:2px;background:#27364a;border-radius:10px}.site-nav{position:absolute;left:16px;right:16px;top:72px;display:none;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:12px}.site-nav a{display:block;padding:11px 12px;color:#354255;border-radius:12px;font-size:15px}.site-nav a:hover{background:var(--blue-soft);color:var(--primary)}.nav-toggle:checked~.site-nav{display:block}
.container{width:min(100% - 32px,1180px);margin:0 auto}.narrow{width:min(100% - 32px,880px);margin:0 auto}.page-main{padding:32px 0 66px}.section{padding:44px 0}.section-title{max-width:760px;margin:0 auto 24px;text-align:center}.section-title .eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;background:var(--blue-soft);color:var(--primary);font-size:13px;font-weight:700;margin-bottom:12px}.section-title h2{font-size:28px;line-height:1.25;margin:0 0 10px;color:#122235}.section-title p{margin:0;color:var(--muted)}
.product-hero{position:relative;overflow:hidden;padding:54px 0 34px}.product-hero:before{content:"";position:absolute;right:-120px;top:-160px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(41,128,254,.18),rgba(41,128,254,0) 68%)}.hero-grid{display:grid;grid-template-columns:1fr;gap:34px;align-items:center}.hero-copy h1{font-size:38px;line-height:1.15;margin:0 0 16px;color:#101c2e;letter-spacing:-.8px}.hero-copy p{font-size:17px;color:#536174;margin:0 0 22px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.hero-tags span,.mini-tag{display:inline-flex;align-items:center;border:1px solid #cfe1f7;background:#f5faff;color:#315577;border-radius:999px;padding:7px 12px;font-size:13px}.hero-visual{position:relative;min-height:360px;padding:24px;border-radius:30px;background:linear-gradient(145deg,#f9fcff,#eaf4ff);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}.hero-phone{width:min(78%,330px);margin:auto;filter:drop-shadow(0 26px 38px rgba(31,86,160,.14))}.floating-card{position:absolute;background:#fff;border:1px solid var(--line);box-shadow:0 16px 34px rgba(28,71,120,.1);border-radius:18px;padding:12px 14px;font-size:13px;color:#354255}.asset-card{left:18px;bottom:24px}.cold-card{right:18px;top:24px}.swap-card{right:20px;bottom:86px}.dapp-card{left:22px;top:42px}.floating-card strong{display:block;color:#122235;font-size:15px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;letter-spacing:.3px;box-shadow:0 14px 26px rgba(41,128,254,.26);transition:.2s ease}.download-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}
.feature-shortcuts{display:grid;grid-template-columns:1fr;gap:14px}.shortcut-card,.feature-card,.category-card,.risk-card,.faq-item,.info-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(32,76,120,.055)}.shortcut-card{padding:18px}.shortcut-card .icon{width:34px;height:34px;border-radius:12px;background:var(--blue-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:10px}.shortcut-card h3,.feature-card h3,.category-card h3,.risk-card h3{margin:0 0 7px;color:#132338}.shortcut-card p,.feature-card p,.category-card p,.risk-card p{margin:0 0 12px;color:var(--muted);font-size:15px}.text-link{color:var(--primary);font-weight:700}.product-section{padding:48px 0}.product-row{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;border-radius:30px;padding:24px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}.product-row.alt,.cold-wallet-section .product-row{background:linear-gradient(145deg,#f8fbff,#eef6ff)}.product-row .visual{border-radius:26px;background:linear-gradient(145deg,#f4f9ff,#fff);border:1px solid var(--line);padding:18px;display:flex;align-items:center;justify-content:center;min-height:260px}.product-row .visual img{max-height:360px;object-fit:contain}.product-row h2{font-size:27px;line-height:1.28;margin:0 0 12px;color:#14243a}.product-row p{color:var(--muted);margin:0 0 14px}.check-list{display:grid;gap:8px;margin:16px 0;padding:0;list-style:none}.check-list li{position:relative;padding-left:26px;color:#3c4b5f}.check-list li:before{content:"";position:absolute;left:0;top:.58em;width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(41,128,254,.12)}
.process-steps{display:grid;grid-template-columns:1fr;gap:14px}.step-card{padding:18px;position:relative;overflow:hidden}.step-card .num{width:36px;height:36px;border-radius:13px;background:var(--primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:12px}.step-card h3{margin:0 0 8px}.step-card p{margin:0 0 10px;color:var(--muted);font-size:15px}.risk-grid,.category-grid,.cards-grid{display:grid;grid-template-columns:1fr;gap:14px}.risk-card{padding:18px;border-left:4px solid var(--primary)}.risk-card .suggest{display:block;margin-top:8px;color:#47576a;font-size:14px;background:#f7fbff;border-radius:12px;padding:9px}.category-card{padding:18px}.category-card:nth-child(1),.category-card:nth-child(6){background:linear-gradient(145deg,#fff,#f4f9ff)}.faq-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h3{margin:0 0 8px;font-size:18px;color:#14243a}.faq-item p{margin:0;color:var(--muted)}.cta-section{margin-top:28px;text-align:center;border-radius:30px;padding:34px 20px;background:linear-gradient(135deg,#f6faff,#eaf4ff);border:1px solid var(--line);box-shadow:var(--shadow)}.cta-section h2{margin:0 0 10px;font-size:28px}.cta-section p{max-width:650px;margin:0 auto 20px;color:var(--muted)}
.page-hero{padding:48px 0 28px;background:linear-gradient(180deg,#f7fbff,#fff)}.page-hero h1{font-size:34px;line-height:1.2;margin:0 0 12px;color:#101d30}.page-hero p{margin:0;color:var(--muted);font-size:17px}.article-layout{display:grid;grid-template-columns:1fr;gap:22px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}.article-card h2{font-size:24px;margin:0 0 12px}.article-card p{color:#4c5c70;margin:0 0 14px}.side-panel{background:#f7fbff;border:1px solid var(--line);border-radius:24px;padding:20px;position:static}.side-panel h3{margin:0 0 12px}.side-panel a{display:block;padding:10px 0;border-top:1px solid var(--line);color:var(--primary);font-weight:700}.notice{border:1px solid #cfe1f7;background:#f5faff;border-radius:20px;padding:16px;color:#405166}.split-cards{display:grid;grid-template-columns:1fr;gap:14px;margin:18px 0}.download-wrap{margin-top:22px}.download-page-card{text-align:center;background:#fff;border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:var(--shadow)}.download-page-card .download-btn{margin:18px auto 4px}.install-steps{counter-reset:item;display:grid;gap:12px;margin:22px 0}.install-steps div{counter-increment:item;background:#fff;border:1px solid var(--line);border-radius:18px;padding:15px 15px 15px 56px;position:relative}.install-steps div:before{content:counter(item);position:absolute;left:16px;top:15px;width:28px;height:28px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.site-footer{background:#172333;color:#dce6f3;margin-top:30px}.footer-inner{width:min(100% - 32px,1180px);margin:0 auto;padding:42px 0;display:grid;grid-template-columns:1fr;gap:28px}.footer-logo{font-size:22px;font-weight:800;color:#fff}.footer-brand p{color:#aebccd;max-width:470px}.footer-links{display:grid;grid-template-columns:1fr;gap:22px}.footer-links h3{color:#fff;margin:0 0 10px}.footer-links a{display:block;color:#b9c6d6;padding:4px 0}.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.08);padding:16px;color:#aebccd;font-size:14px}.seo-hidden-note{font-size:13px;color:var(--muted)}
@media (min-width:560px){.feature-shortcuts{grid-template-columns:repeat(2,1fr)}.category-grid,.risk-grid,.cards-grid,.split-cards{grid-template-columns:repeat(2,1fr)}.process-steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:860px){.nav-trigger{display:none}.site-nav{position:static;display:flex;background:transparent;border:none;box-shadow:none;border-radius:0;padding:0;align-items:center;gap:4px}.site-nav a{padding:8px 10px;font-size:14px}.hero-grid{grid-template-columns:1.02fr .98fr;gap:46px}.hero-copy h1{font-size:56px}.product-hero{padding:72px 0 46px}.feature-shortcuts{grid-template-columns:repeat(3,1fr)}.product-row{grid-template-columns:1fr 1fr;padding:34px}.product-row.reverse .visual{order:2}.product-row.reverse .content{order:1}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.article-layout{grid-template-columns:minmax(0,1fr) 300px}.side-panel{position:sticky;top:100px}.footer-inner{grid-template-columns:1fr 1.4fr}.footer-links{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1120px){.feature-shortcuts{grid-template-columns:repeat(6,1fr)}.section-title h2{font-size:34px}.page-hero h1{font-size:44px}}
@media (max-width:380px){.hero-copy h1{font-size:32px}.section-title h2,.cta-section h2{font-size:24px}.floating-card{position:static;margin:8px 4px}.hero-visual{display:block;min-height:auto}.hero-phone{width:86%;margin:0 auto 12px}}