:root{
    --primary:#2980FE;
    --primary-dark:#1d66d4;
    --primary-soft:#eef5ff;
    --white:#ffffff;
    --gray-50:#f8fafc;
    --gray-100:#f1f5f9;
    --gray-200:#e5e7eb;
    --gray-500:#64748b;
    --gray-700:#334155;
    --gray-900:#111827;
    --blue-gray:#f4f8ff;
    --radius:22px;
    --shadow:0 18px 45px rgba(28, 85, 160, .10);
}
*{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(--gray-700);background:linear-gradient(180deg,#fff 0%,#f8fbff 45%,#fff 100%);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul,ol{padding-left:20px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(226,232,240,.9)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--gray-900);letter-spacing:.2px}.logo img{width:38px;height:38px;border-radius:12px}.site-nav{display:none;flex-direction:column;position:absolute;left:18px;right:18px;top:68px;background:var(--white);border:1px solid var(--gray-200);border-radius:18px;padding:12px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.site-nav a{font-size:15px;color:var(--gray-700);padding:10px 12px;border-radius:12px}.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}.nav-toggle{border:1px solid var(--gray-200);background:var(--white);border-radius:13px;width:42px;height:42px;font-size:22px;color:var(--gray-900)}
.content-container,.section-container{max-width:1180px;margin:0 auto;padding:58px 18px}.narrow-container{max-width:920px;margin:0 auto;padding:58px 18px}.gradient-bg{background:radial-gradient(circle at 15% 20%,rgba(41,128,254,.16),transparent 30%),linear-gradient(135deg,#ffffff 0%,#f3f8ff 55%,#ffffff 100%)}.eyebrow,.category-badge{display:inline-flex;align-items:center;gap:8px;color:var(--primary);background:var(--primary-soft);border:1px solid rgba(41,128,254,.16);padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}.product-hero{padding:64px 18px 42px}.product-hero .hero-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:34px;align-items:center}.hero-copy h1,.page-hero h1{font-size:clamp(34px,6vw,64px);line-height:1.12;color:var(--gray-900);margin:16px 0}.hero-copy p,.page-hero p,.section-lead{font-size:17px;color:var(--gray-500);margin:0 0 24px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.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!important;font-weight:800;box-shadow:0 14px 28px rgba(41,128,254,.26);border:0;cursor:pointer;transition:.2s ease}.download-btn:hover{transform:translateY(-2px);background:var(--primary-dark)}.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.tag-row span,.mini-tag{display:inline-flex;align-items:center;border:1px solid rgba(41,128,254,.16);background:#fff;color:var(--gray-700);border-radius:999px;padding:7px 12px;font-size:13px}.app-visual{position:relative;min-height:370px;padding:22px;border-radius:30px;background:linear-gradient(145deg,#f7fbff,#ffffff);border:1px solid rgba(226,232,240,.9);box-shadow:var(--shadow);overflow:hidden}.app-visual:before{content:"";position:absolute;inset:auto -40px -80px auto;width:240px;height:240px;border-radius:50%;background:rgba(41,128,254,.12)}.phone-frame{position:relative;z-index:1;max-width:320px;margin:0 auto;border-radius:28px}.floating-card{position:absolute;z-index:2;background:rgba(255,255,255,.94);border:1px solid rgba(226,232,240,.9);border-radius:18px;padding:12px 14px;box-shadow:0 12px 30px rgba(28,85,160,.12);font-size:13px}.floating-card strong{display:block;color:var(--gray-900)}.card-assets{left:16px;top:28px}.card-cold{right:16px;top:92px}.card-swap{left:18px;bottom:80px}.card-dapp{right:24px;bottom:28px}.feature-shortcuts{display:grid;grid-template-columns:1fr;gap:14px}.shortcut-card,.feature-card,.risk-card,.category-card,.faq-item,.info-card,.step-card{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);padding:22px;box-shadow:0 10px 28px rgba(15,23,42,.04)}.shortcut-card{position:relative;overflow:hidden}.shortcut-card:before{content:"";width:34px;height:5px;background:var(--primary);border-radius:99px;display:block;margin-bottom:14px}.shortcut-card h3,.feature-card h3,.risk-card h3,.category-card h3,.step-card h3{margin:0 0 8px;color:var(--gray-900)}.shortcut-card p,.feature-card p,.risk-card p,.category-card p,.step-card p{margin:0 0 12px;color:var(--gray-500);font-size:15px}.text-link{color:var(--primary);font-weight:800}.product-section,.app-section,.cold-wallet-section,.swap-section,.dapp-section{padding:58px 0}.split-section{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}.section-copy h2,.section-title h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:0 0 16px;color:var(--gray-900)}.feature-list{display:grid;gap:12px;margin:22px 0}.feature-list li{background:var(--gray-50);border:1px solid var(--gray-200);border-radius:14px;padding:12px 14px}.visual-panel{background:linear-gradient(145deg,#fff,#f3f8ff);border:1px solid var(--gray-200);border-radius:30px;padding:22px;box-shadow:var(--shadow)}.cold-wallet-section,.safety-panel{background:linear-gradient(180deg,#f7fbff,#eef5ff)}.dapp-section .visual-panel{background:#fff}.process-steps{display:grid;grid-template-columns:1fr;gap:14px;counter-reset:steps}.step-card{position:relative;padding-left:74px}.step-card .num{position:absolute;left:22px;top:22px;width:36px;height:36px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800}.risk-grid,.category-grid,.card-grid{display:grid;grid-template-columns:1fr;gap:16px}.risk-card{border-left:4px solid var(--primary)}.risk-card .suggestion{font-size:14px;color:var(--gray-700);background:var(--primary-soft);border-radius:14px;padding:10px 12px;margin:12px 0}.category-card{min-height:170px}.faq-list{display:grid;gap:14px}.faq-item h3{font-size:17px;color:var(--gray-900);margin:0 0 8px}.faq-item p{margin:0;color:var(--gray-500)}.cta-section{margin:38px auto 72px;max-width:1120px;border-radius:32px;padding:44px 20px;text-align:center;background:linear-gradient(135deg,#eef5ff,#ffffff 55%,#f4f8ff);border:1px solid rgba(41,128,254,.16);box-shadow:var(--shadow)}.cta-section h2{font-size:clamp(28px,4vw,44px);color:var(--gray-900);margin:0 0 12px}.cta-section p{max-width:720px;margin:0 auto 22px;color:var(--gray-500)}.page-hero{padding:58px 18px;background:linear-gradient(135deg,#fff,#f3f8ff);border-bottom:1px solid var(--gray-200)}.page-hero-inner{max-width:980px;margin:0 auto}.content-layout{max-width:1120px;margin:0 auto;padding:48px 18px;display:grid;grid-template-columns:1fr;gap:24px}.article-card{background:#fff;border:1px solid var(--gray-200);border-radius:28px;padding:24px;box-shadow:0 12px 32px rgba(15,23,42,.05)}.article-card h2{color:var(--gray-900);font-size:24px;margin:4px 0 14px}.article-card p{margin:0 0 16px}.side-panel{background:var(--blue-gray);border:1px solid rgba(41,128,254,.15);border-radius:26px;padding:22px;height:max-content}.check-list{display:grid;gap:12px;padding:0;margin:18px 0;list-style:none}.check-list li{padding:12px 14px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:14px}.notice-box{border-radius:18px;background:var(--primary-soft);border:1px solid rgba(41,128,254,.15);padding:16px;color:var(--gray-700);margin:20px 0}.download-only{display:flex;justify-content:flex-start;margin-top:24px}.download-page-grid{display:grid;grid-template-columns:1fr;gap:22px}.site-footer{background:#0f172a;color:#cbd5e1;margin-top:40px}.footer-inner{max-width:1180px;margin:0 auto;padding:46px 18px;display:grid;grid-template-columns:1fr;gap:24px}.footer-logo{font-size:22px;font-weight:900;color:#fff;margin-bottom:10px}.footer-inner p{max-width:660px;margin:0;color:#94a3b8}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.footer-links a{color:#dbeafe}.footer-bottom{text-align:center;border-top:1px solid rgba(148,163,184,.2);padding:16px 18px;color:#94a3b8;font-size:13px}.about-matrix{display:grid;grid-template-columns:1fr;gap:16px}.about-matrix .info-card h3{color:var(--gray-900);margin:0 0 8px}
@media (min-width:640px){.feature-shortcuts{grid-template-columns:repeat(2,1fr)}.risk-grid,.category-grid,.card-grid{grid-template-columns:repeat(2,1fr)}.download-page-grid{grid-template-columns:repeat(2,1fr)}.about-matrix{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.nav-toggle{display:none}.site-nav{position:static;display:flex!important;flex-direction:row;align-items:center;gap:2px;background:transparent;border:0;box-shadow:none;padding:0}.product-hero{padding:82px 18px 56px}.product-hero .hero-grid{grid-template-columns:1.05fr .95fr}.feature-shortcuts{grid-template-columns:repeat(3,1fr)}.split-section{grid-template-columns:1fr 1fr;gap:46px}.split-section.reverse .visual-panel{order:1}.split-section.reverse .section-copy{order:2}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 310px}.footer-inner{grid-template-columns:1fr 320px}.app-visual{min-height:470px}.phone-frame{max-width:380px}.article-card{padding:34px}}
@media (min-width:1180px){.feature-shortcuts{grid-template-columns:repeat(6,1fr)}.shortcut-card{padding:20px}.shortcut-card p{font-size:14px}.product-section,.app-section,.cold-wallet-section,.swap-section,.dapp-section{padding:76px 0}}