*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",Inter,"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--text);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:80px 0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;border:2px solid transparent;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 24px rgba(235,10,36,.28)}
.btn-primary:hover{transform:translateY(-2px);background:var(--brand-dark);box-shadow:0 12px 32px rgba(235,10,36,.4)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-dark{background:var(--bg-dark);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(11,14,23,.25)}

.section-tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);background:rgba(235,10,36,.08);padding:5px 14px;border-radius:20px;margin-bottom:16px;text-transform:uppercase}
.section-title{font-size:38px;font-weight:800;line-height:1.25;color:var(--bg-dark);margin-bottom:16px}
.section-desc{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:48px}
.text-center{text-align:center}
.text-center .section-desc{margin-left:auto;margin-right:auto}

.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--bg-dark)}
.brand-logo{width:36px;height:36px;border-radius:9px}
.brand-sub{font-size:12px;font-weight:500;color:var(--muted);margin-left:8px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{font-size:15px;font-weight:500;color:#3f4550;padding:8px 14px;border-radius:8px;transition:all .2s;position:relative}
.nav-link:hover{color:var(--brand);background:rgba(235,10,36,.05)}
.nav-link.active{color:var(--brand);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-btn{border:none;background:transparent;padding:7px 12px;font-size:13px;font-weight:600;cursor:pointer;color:var(--muted)}
.lang-btn.active{background:var(--brand);color:#fff}
.menu-toggle{display:none;border:none;background:transparent;font-size:26px;cursor:pointer;color:var(--bg-dark)}

.hero{position:relative;padding:170px 0 90px;background:radial-gradient(1200px 600px at 80% -10%,rgba(235,10,36,.18),transparent 60%),radial-gradient(900px 500px at 10% 10%,rgba(255,140,0,.14),transparent 55%),linear-gradient(160deg,#0B0E17 0%,#111528 55%,#0B0E17 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:52px 52px;pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:30px;padding:7px 16px;font-size:13px;color:#ffe3e6;margin-bottom:22px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#2ecc71;animation:pulse 1.8s infinite}
.hero h1{font-size:54px;font-weight:900;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.hero h1 .grad{background:linear-gradient(90deg,#ff4d5e,#ff8a3d);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:19px;color:#c7ccd8;max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:28px}
.stat-num{font-size:32px;font-weight:900;color:#fff}
.stat-num span{color:#ff8a3d}
.stat-label{font-size:13px;color:#9aa1b0;margin-top:2px}

.hero-visual{position:relative;z-index:2}
.phone-mock{position:relative;width:280px;margin:0 auto;background:linear-gradient(180deg,#161a2b,#0d101c);border:1px solid rgba(255,255,255,.14);border-radius:38px;padding:14px;box-shadow:0 30px 80px rgba(0,0,0,.5),inset 0 0 0 2px rgba(255,255,255,.03)}
.phone-screen{background:linear-gradient(180deg,#1b2038,#12152a);border-radius:26px;padding:22px 16px;min-height:480px;position:relative;overflow:hidden}
.phone-notch{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:90px;height:18px;background:#0a0d18;border-radius:0 0 12px 12px;z-index:3}
.phone-screen .asset-row{display:flex;align-items:center;justify-content:space-between;padding:12px;border-radius:12px;background:rgba(255,255,255,.05);margin-bottom:10px;border:1px solid rgba(255,255,255,.06)}
.phone-screen .asset-row .coin{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
.phone-screen .coin-icon{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:900;color:#fff}
.phone-screen .asset-row .val{font-weight:700;font-size:15px}
.phone-screen .asset-row .sub{font-size:11px;color:#9aa1b0;font-weight:400}
.phone-total{margin:18px 0 14px}
.phone-total .lbl{font-size:12px;color:#9aa1b0}
.phone-total .amt{font-size:30px;font-weight:900;color:#fff}
.phone-total .amt .up{font-size:14px;color:#2ecc71;font-weight:600;margin-left:8px}
.phone-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.phone-action{padding:12px;border-radius:12px;background:linear-gradient(135deg,#ff4d5e,#ff8a3d);text-align:center;font-size:13px;font-weight:700;color:#fff;cursor:pointer}
.phone-action.alt{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.float-badge{position:absolute;background:#fff;color:var(--bg-dark);border-radius:14px;padding:12px 16px;box-shadow:0 16px 40px rgba(0,0,0,.35);font-size:13px;font-weight:700;display:flex;align-items:center;gap:10px;animation:float 4s ease-in-out infinite}
.float-badge .ic{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px}
.float-badge.b1{top:10%;left:-30px}
.float-badge.b2{bottom:16%;right:-20px;animation-delay:1.5s}

.features{background:#fff}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px 26px;transition:all .3s ease;cursor:pointer}
.feature-card:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:0 20px 40px rgba(235,10,36,.1)}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px;background:linear-gradient(135deg,rgba(235,10,36,.12),rgba(255,138,61,.12));color:var(--brand);transition:transform .3s}
.feature-card:hover .feature-icon{transform:rotate(-6deg) scale(1.06)}
.feature-card h3{font-size:19px;font-weight:800;color:var(--bg-dark);margin-bottom:12px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}
.feature-list{margin-top:14px}
.feature-list li{font-size:13px;color:#555c69;padding:4px 0;position:relative;padding-left:18px}
.feature-list li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:700}

.multichain{background:linear-gradient(180deg,#0B0E17,#111528);color:#fff}
.multichain .section-title{color:#fff}
.multichain .section-desc{color:#9aa1b0}
.chain-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:48px}
.chain-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:26px 16px;text-align:center;cursor:pointer;transition:all .3s}
.chain-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.09);border-color:var(--brand)}
.chain-card .chain-icon{width:52px;height:52px;border-radius:14px;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:900;color:#fff}
.chain-card .chain-name{font-weight:700;font-size:15px}
.chain-card .chain-sub{font-size:12px;color:#9aa1b0;margin-top:3px}

.security{background:#fffdf8;border-top:1px solid #ffe9dc;border-bottom:1px solid #ffe9dc}
.security-box{background:linear-gradient(135deg,#fff, #fff6f0);border:2px solid #ffd9c2;border-radius:20px;padding:40px;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start}
.security-alert{font-size:44px;line-height:1}
.security-box h3{font-size:24px;font-weight:800;color:#c0392b;margin-bottom:14px}
.security-box p{font-size:15px;color:#6b4a3a;margin-bottom:8px}
.security-box .code{display:inline-block;background:#1a1a2e;color:#7ef0a0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;padding:8px 14px;border-radius:8px;font-size:14px;margin:6px 0;word-break:break-all;cursor:pointer}
.security-tips{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
.security-tip{display:flex;gap:10px;font-size:14px;color:#5b4a3a;align-items:flex-start}
.security-tip .ic{color:var(--brand);font-weight:800}

.news{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:all .3s}
.news-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(0,0,0,.08);border-color:#e8e8f0}
.news-card .news-thumb{height:150px;background:linear-gradient(135deg,#ff4d5e,#ff8a3d);display:flex;align-items:center;justify-content:center;font-size:40px;color:rgba(255,255,255,.85)}
.news-card .news-body{padding:22px}
.news-card .news-date{font-size:12px;color:var(--brand);font-weight:700;margin-bottom:8px}
.news-card h3{font-size:17px;font-weight:800;color:var(--bg-dark);margin-bottom:10px}
.news-card p{font-size:14px;color:var(--muted)}

.partner{background:linear-gradient(180deg,#111528,#0B0E17);color:#fff}
.partner .section-title{color:#fff}
.partner-logos{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:40px}
.partner-logo{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px 28px;font-weight:700;font-size:16px;color:#dfe2ea;transition:all .3s}
.partner-logo:hover{background:rgba(255,255,255,.12);color:#fff}

.page-hero{background:linear-gradient(160deg,#0B0E17,#111528);color:#fff;padding:150px 0 70px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 70% 0%,rgba(235,10,36,.22),transparent 60%)}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:44px;font-weight:900;margin-bottom:14px}
.page-hero p{font-size:18px;color:#c7ccd8;max-width:680px}

.content-section{background:#fff}
.content-block{max-width:880px;margin:0 auto 56px}
.content-block h2{font-size:28px;font-weight:800;color:var(--bg-dark);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--line)}
.content-block h3{font-size:19px;font-weight:800;color:var(--bg-dark);margin:22px 0 10px}
.content-block p{font-size:15px;color:#3f4550;margin-bottom:12px}
.content-block ul{margin:12px 0 16px;padding-left:4px}
.content-block ul li{font-size:15px;color:#3f4550;padding:6px 0 6px 22px;position:relative}
.content-block ul li::before{content:"●";position:absolute;left:0;color:var(--brand);font-size:10px;top:11px}
.content-block table{width:100%;border-collapse:collapse;margin:16px 0}
.content-block table th,.content-block table td{border:1px solid var(--line);padding:12px 14px;text-align:left;font-size:14px}
.content-block table th{background:#f8f9fc;font-weight:700;color:var(--bg-dark)}
.content-block table td{color:#3f4550}

.download-hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-top:24px}
.dl-platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px;text-align:center;transition:all .3s;position:relative}
.dl-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,.08);border-color:var(--brand)}
.dl-card .dl-icon{width:64px;height:64px;border-radius:16px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;font-size:30px;color:#fff;background:linear-gradient(135deg,#ff4d5e,#ff8a3d)}
.dl-card h3{font-size:19px;font-weight:800;color:var(--bg-dark);margin-bottom:6px}
.dl-card .ver{font-size:13px;color:var(--muted);margin-bottom:16px}
.dl-card .reco{position:absolute;top:16px;right:16px;background:var(--brand);color:#fff;font-size:11px;font-weight:700;padding:4px 10px;border-radius:12px}

.faq-list{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:16px;overflow:hidden;background:#fff}
.faq-q{width:100%;background:#f8f9fc;border:none;padding:20px 24px;text-align:left;font-size:16px;font-weight:700;color:var(--bg-dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-q:hover{background:#f1f3f8}
.faq-q .cat{font-size:12px;color:var(--brand);background:rgba(235,10,36,.08);padding:3px 10px;border-radius:12px;font-weight:700;white-space:nowrap}
.faq-q .arrow{transition:transform .3s;color:var(--brand);font-size:20px}
.faq-item.open .faq-q .arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:4px 24px 22px;color:#3f4550;font-size:15px;line-height:1.8}
.faq-a-inner ol{margin:10px 0;padding-left:22px}
.faq-a-inner ol li{margin-bottom:8px}
.faq-a-inner strong{color:var(--bg-dark)}

.cta-band{background:linear-gradient(135deg,#EB0A24,#ff5a1f);color:#fff;text-align:center;padding:70px 0;border-radius:0}
.cta-band h2{font-size:34px;font-weight:900;margin-bottom:12px}
.cta-band p{font-size:17px;color:#ffe9e2;margin-bottom:28px}

.back-top{position:fixed;bottom:28px;right:28px;width:48px;height:48px;border-radius:50%;background:var(--brand);color:#fff;border:none;font-size:20px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(235,10,36,.4);z-index:900}
.back-top.show{display:flex}

.site-footer{background:#0B0E17;color:#c7ccd8;padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;color:#9aa1b0;max-width:300px}
.footer-official{margin-top:12px;color:#ff8a3d;font-weight:600;font-size:13px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:#9aa1b0;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.social-row{display:flex;gap:12px;padding:24px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.social-link{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:9px 16px;font-size:13px;color:#dfe2ea;transition:all .2s}
.social-link:hover{background:rgba(255,255,255,.14);color:#fff}
.friend-links{padding:28px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.friend-links h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
#my-friend-links{font-size:14px;color:#9aa1b0}
#my-friend-links a{color:#ff8a3d;margin-right:18px;line-height:2.2}
.footer-bottom{padding:24px 0 40px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:#7a8091}
.footer-bottom a{color:#9aa1b0;margin-left:16px;transition:color .2s}
.footer-bottom a:hover{color:#fff}

.sitemap-list{max-width:860px;margin:0 auto}
.sitemap-list .group{margin-bottom:34px}
.sitemap-list h3{font-size:20px;font-weight:800;color:var(--bg-dark);margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--line)}
.sitemap-list .links{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.sitemap-list .links a{display:block;padding:12px 16px;background:#f8f9fc;border:1px solid var(--line);border-radius:10px;font-size:14px;color:#3f4550;transition:all .2s}
.sitemap-list .links a:hover{border-color:var(--brand);color:var(--brand);background:#fff}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .chain-grid{grid-template-columns:repeat(3,1fr)}
  .dl-platforms{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:42px}
  .phone-mock{width:240px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px;gap:4px;box-shadow:0 20px 40px rgba(0,0,0,.1);display:none;border-bottom:1px solid var(--line)}
  .main-nav.open{display:flex}
  .nav-link{padding:12px 16px;font-size:16px}
  .menu-toggle{display:block}
  .header-actions .btn-primary{display:none}
  .hero h1{font-size:32px}
  .hero{padding:130px 0 60px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .section-title{font-size:28px}
  .features-grid{grid-template-columns:1fr}
  .chain-grid{grid-template-columns:repeat(2,1fr)}
  .dl-platforms{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .security-box{grid-template-columns:1fr;padding:26px}
  .security-tips{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-badge{display:none}
  .content-block table{display:block;overflow-x:auto}
}