:root{
  --primary:#2980FE;
  --primary-dark:#1767dc;
  --primary-soft:#eaf3ff;
  --bg:#f6f9ff;
  --bg-soft:#f8fafc;
  --white:#ffffff;
  --text:#263244;
  --muted:#667085;
  --line:#e5eaf2;
  --deep:#111827;
  --radius:22px;
  --shadow:0 18px 45px rgba(34,81,135,.11);
}
*{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:var(--white);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.section{padding:64px 0}
.section-soft{background:linear-gradient(180deg,#f7fbff 0%,#ffffff 100%)}
.section-title{max-width:760px;margin:0 auto 30px;text-align:center}
.section-title .eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:700;margin-bottom:12px}
h1,h2,h3{color:var(--deep);line-height:1.25;margin:0 0 14px}h1{font-size:clamp(34px,6vw,62px);letter-spacing:-.04em}h2{font-size:clamp(26px,4vw,42px);letter-spacing:-.03em}h3{font-size:20px}p{margin:0 0 16px;color:var(--muted)}ul,ol{padding-left:20px;color:var(--muted)}li{margin:7px 0}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,234,242,.8)}.nav-wrap{width:min(1180px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;min-height:72px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--deep)}.logo{width:38px;height:38px;border-radius:12px;object-fit:contain}.nav-toggle{border:1px solid var(--line);background:#fff;border-radius:12px;width:42px;height:42px;font-size:22px;color:var(--deep)}.site-nav{position:absolute;left:14px;right:14px;top:76px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:12px;display:none;grid-template-columns:1fr 1fr;gap:8px}.site-nav.open{display:grid}.site-nav a{padding:12px;border-radius:12px;color:#4b5563;font-size:14px}.site-nav a.active,.site-nav a:hover{background:var(--primary-soft);color:var(--primary);font-weight:700}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;background:linear-gradient(135deg,var(--primary),#65a7ff);color:#fff;font-weight:800;box-shadow:0 14px 30px rgba(41,128,254,.25);border:0;cursor:pointer;transition:.2s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(41,128,254,.32)}.link-arrow{display:inline-flex;color:var(--primary);font-weight:800;margin-top:4px}.product-hero{position:relative;padding:54px 0 42px;overflow:hidden;background:radial-gradient(circle at 88% 12%,rgba(41,128,254,.18),transparent 34%),linear-gradient(180deg,#fff 0%,#f5f9ff 100%)}.product-hero:before{content:"";position:absolute;right:-160px;top:20px;width:420px;height:420px;background:linear-gradient(135deg,rgba(41,128,254,.22),rgba(255,255,255,0));border-radius:50%;filter:blur(4px)}.hero-grid{display:grid;gap:34px;align-items:center;position:relative}.hero-copy{max-width:670px}.hero-copy p{font-size:17px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero-tags span,.tag{display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#475467;font-size:13px;font-weight:700}.app-visual{position:relative;padding:22px;border-radius:34px;background:rgba(255,255,255,.72);box-shadow:var(--shadow);border:1px solid rgba(229,234,242,.8);min-height:360px;display:flex;align-items:center;justify-content:center}.app-visual img{max-height:520px;object-fit:contain;margin:auto}.floating-card{position:absolute;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px rgba(32,60,100,.12);border-radius:18px;padding:12px 14px;font-size:13px;color:#475467}.floating-card strong{display:block;color:var(--deep);font-size:15px}.float-assets{left:8px;top:24px}.float-cold{right:8px;top:70px}.float-swap{left:18px;bottom:44px}.float-dapp{right:16px;bottom:26px}.feature-shortcuts{display:grid;grid-template-columns:1fr;gap:14px}.shortcut-card,.feature-card,.risk-card,.category-card,.faq-item,.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 26px rgba(34,81,135,.06)}.shortcut-card{position:relative;overflow:hidden}.shortcut-card:before{content:attr(data-num);display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:var(--primary-soft);color:var(--primary);font-weight:800;margin-bottom:12px}.shortcut-card p,.feature-card p,.risk-card p,.category-card p{font-size:14px}.product-section,.app-section,.cold-wallet-section,.swap-section,.dapp-section{display:grid;gap:30px;align-items:center}.visual-panel{background:linear-gradient(180deg,#f7fbff,#fff);border:1px solid var(--line);border-radius:30px;padding:24px;box-shadow:var(--shadow);min-height:330px;display:flex;align-items:center;justify-content:center}.visual-panel img{max-height:430px;object-fit:contain}.points{display:grid;gap:12px;margin:18px 0}.point{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);color:#526070}.point:before{content:"";flex:0 0 10px;width:10px;height:10px;border-radius:50%;background:var(--primary);margin-top:8px}.blue-panel{background:linear-gradient(135deg,#f1f7ff 0%,#ffffff 80%);border:1px solid #dcecff;border-radius:30px;padding:24px}.mini-grid{display:grid;gap:14px}.process-steps{display:grid;gap:14px;counter-reset:step}.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px 20px 20px 68px;box-shadow:0 8px 26px rgba(34,81,135,.06)}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:34px;height:34px;border-radius:12px;background:var(--primary);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center}.risk-grid{display:grid;gap:14px}.risk-card{border-left:4px solid var(--primary)}.risk-card strong{color:var(--deep)}.category-grid{display:grid;grid-template-columns:1fr;gap:14px}.category-card{min-height:180px}.category-card .tag{margin-bottom:12px}.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}.faq-item h3{font-size:18px}.cta-section{padding:56px 0;background:linear-gradient(135deg,#eef6ff,#ffffff 55%,#f7fbff);text-align:center}.cta-box{max-width:760px;margin:0 auto;border:1px solid #dcecff;border-radius:32px;background:rgba(255,255,255,.82);box-shadow:var(--shadow);padding:34px 22px}.page-hero{background:linear-gradient(180deg,#ffffff,#f6f9ff);padding:52px 0 36px;border-bottom:1px solid var(--line)}.page-hero .container{max-width:920px}.badge{display:inline-flex;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:800;padding:7px 12px;font-size:13px;margin-bottom:12px}.content-layout{display:grid;gap:26px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 12px 34px rgba(34,81,135,.07)}.article h2{font-size:26px;margin-top:12px}.side-panel{display:grid;gap:14px}.checklist{list-style:none;padding:0;margin:12px 0}.checklist li{padding:12px 0 12px 34px;border-bottom:1px solid var(--line);position:relative}.checklist li:before{content:"✓";position:absolute;left:0;top:12px;width:22px;height:22px;border-radius:8px;background:var(--primary-soft);color:var(--primary);font-weight:900;text-align:center;line-height:22px}.notice{border-radius:22px;background:#f7fbff;border:1px solid #dcecff;padding:18px;color:#526070}.download-row{margin-top:24px}.download-page-grid{display:grid;gap:18px}.download-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px}.site-footer{background:#f5f7fb;border-top:1px solid var(--line);padding:42px 0 0}.footer-grid{display:grid;gap:24px}.footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--deep);margin-bottom:12px}.footer-brand img{width:34px;height:34px;border-radius:10px}.site-footer h3{font-size:16px}.site-footer a{display:block;color:#667085;margin:8px 0;font-size:14px}.site-footer a:hover{color:var(--primary)}.footer-bottom{text-align:center;color:#7a8494;font-size:13px;padding:18px 0;border-top:1px solid var(--line);margin-top:30px}.seo-keywords{font-size:13px;color:#8a94a6;margin-top:14px}.two-col{display:grid;gap:16px}.stat-row{display:grid;grid-template-columns:1fr;gap:12px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.stat-card strong{display:block;font-size:24px;color:var(--primary)}
@media (min-width:640px){.feature-shortcuts{grid-template-columns:repeat(2,1fr)}.mini-grid,.risk-grid,.category-grid,.download-page-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:repeat(2,1fr)}.stat-row{grid-template-columns:repeat(3,1fr)}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{position:static;display:flex!important;align-items:center;gap:4px;background:transparent;border:0;box-shadow:none;padding:0}.site-nav a{padding:9px 12px}.product-hero{padding:82px 0 66px}.hero-grid{grid-template-columns:1.02fr .98fr}.feature-shortcuts{grid-template-columns:repeat(3,1fr)}.product-section,.app-section,.swap-section{grid-template-columns:1.05fr .95fr}.cold-wallet-section{grid-template-columns:.95fr 1.05fr}.dapp-section{grid-template-columns:1fr 1fr}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 320px}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}.article{padding:34px}.section{padding:82px 0}.hero-copy p{font-size:18px}.visual-panel{padding:34px}.float-assets{left:-14px}.float-cold{right:-12px}.float-swap{left:28px}.float-dapp{right:24px}}
@media (min-width:1120px){.feature-shortcuts{grid-template-columns:repeat(6,1fr)}}
@media (max-width:420px){.container{width:min(100% - 24px,1160px)}.site-nav{grid-template-columns:1fr}.floating-card{position:static;margin:8px;display:inline-block}.app-visual{display:block;min-height:auto}.app-visual img{margin:0 auto 8px}.download-btn{width:100%;padding:0 18px}.hero-tags span{width:100%;justify-content:center}.section{padding:48px 0}.article{padding:20px}.page-hero{padding:42px 0 28px}}