*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC','Inter',sans-serif;background:#0b0e11;color:#eaecef;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* 公告栏 */
.notice-bar{background:#1a1d23;border-bottom:1px solid #2b3139;padding:9px 0;text-align:center}
.notice-inner{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#f0b90b}
.notice-dot{width:7px;height:7px;border-radius:50%;background:#f0b90b;animation:blink 1.2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}

/* 导航 */
.navbar{position:fixed;top:38px;left:0;right:0;z-index:1000;background:rgba(11,14,17,.92);backdrop-filter:blur(20px);border-bottom:1px solid #2b3139;transition:top .3s}
.navbar.scrolled{top:0}
.nav-wrap{max-width:1200px;margin:0 auto;padding:0 24px;height:62px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:34px;height:34px;background:linear-gradient(135deg,#f0b90b,#e6a800);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;color:#000;letter-spacing:-1px}
.logo-icon.sm{width:28px;height:28px;font-size:10px}
/* OKX棋盘图标 */
.logo-okx{width:34px;height:34px;flex-shrink:0}
.ft-okx{width:28px;height:28px;flex-shrink:0}
.fixbar-okx{width:32px;height:32px;flex-shrink:0}
.logo-text{font-size:20px;font-weight:800;color:#fff}
.logo-text em{color:#f0b90b;font-style:normal}
.nav-menu{display:flex;gap:2px;flex:1;justify-content:center}
.nav-menu a{color:#848e9c;font-size:14px;padding:6px 14px;border-radius:6px;transition:all .2s;white-space:nowrap}
.nav-menu a:hover{color:#f0b90b;background:rgba(240,185,11,.08)}
.nav-right{display:flex;gap:10px;flex-shrink:0}
.nav-login{color:#f0b90b;font-size:14px;font-weight:600;padding:8px 18px;border:1px solid rgba(240,185,11,.3);border-radius:6px;transition:all .2s}
.nav-login:hover{background:rgba(240,185,11,.08)}
.nav-reg{background:#f0b90b;color:#000;font-size:14px;font-weight:700;padding:8px 18px;border-radius:6px;transition:all .2s}
.nav-reg:hover{background:#e6a800;transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:#848e9c;border-radius:2px}
.mobile-nav{display:none;flex-direction:column;background:#0b0e11;padding:16px 24px;border-top:1px solid #2b3139}
.mobile-nav a{color:#848e9c;padding:12px 0;font-size:15px;border-bottom:1px solid #1a1d23}
.mobile-nav .mnav-reg{margin-top:12px;background:#f0b90b;color:#000;text-align:center;padding:12px;border-radius:6px;font-weight:700;border-bottom:none}
.mobile-nav.open{display:flex}

/* Hero */
.hero{position:relative;padding:140px 0 0;overflow:hidden;background:#0b0e11;min-height:100vh}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(43,49,57,.4) 1px,transparent 1px),linear-gradient(90deg,rgba(43,49,57,.4) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.hero-glow-1{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(240,185,11,.08) 0%,transparent 70%);top:-100px;right:-100px;pointer-events:none}
.hero-glow-2{position:absolute;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,233,.06) 0%,transparent 70%);bottom:100px;left:-100px;pointer-events:none}
.hero-content{max-width:1200px;margin:0 auto;padding:0 24px 60px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-label{display:inline-flex;align-items:center;gap:8px;background:rgba(240,185,11,.1);color:#f0b90b;border:1px solid rgba(240,185,11,.2);padding:6px 14px;border-radius:20px;font-size:13px;font-weight:500;margin-bottom:20px}
.label-dot{width:6px;height:6px;border-radius:50%;background:#f0b90b;animation:blink 1.2s infinite}
.hero h1{font-size:clamp(36px,4.5vw,58px);font-weight:900;color:#fff;line-height:1.15;margin-bottom:16px}
.text-grad{background:linear-gradient(135deg,#f0b90b,#e6a800,#ffd700);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:16px;color:#848e9c;line-height:1.8;margin-bottom:32px;max-width:480px}
.hero-actions{display:flex;gap:14px;margin-bottom:40px;flex-wrap:wrap}
.btn-hero-main{background:#f0b90b;color:#000;padding:13px 32px;border-radius:8px;font-size:15px;font-weight:700;transition:all .2s;display:inline-block}
.btn-hero-main:hover{background:#e6a800;transform:translateY(-2px);box-shadow:0 6px 24px rgba(240,185,11,.35)}
.btn-hero-dl{background:transparent;color:#f0b90b;border:1.5px solid rgba(240,185,11,.4);padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;transition:all .2s;display:inline-block}
.btn-hero-dl:hover{background:rgba(240,185,11,.08);transform:translateY(-2px)}
.hero-trust{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.trust-item{text-align:center;padding:0 20px}
.trust-item:first-child{padding-left:0}
.trust-num{display:block;font-size:22px;font-weight:800;color:#fff}
.trust-num i{font-style:normal;font-size:14px;color:#f0b90b}
.trust-item>span:last-child{font-size:12px;color:#848e9c}
.trust-sep{width:1px;height:36px;background:#2b3139}

/* 行情卡片 */
.market-card{background:#161a1e;border:1px solid #2b3139;border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.mc-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #2b3139}
.mc-title{font-size:14px;font-weight:700;color:#fff}
.mc-live{display:flex;align-items:center;gap:6px;font-size:12px;color:#0ecb81;font-weight:600}
.live-dot{width:6px;height:6px;border-radius:50%;background:#0ecb81;animation:blink 1s infinite}
.mc-list{padding:8px 0}
.mc-row{display:flex;align-items:center;padding:10px 20px;gap:12px;transition:background .2s;cursor:pointer}
.mc-row:hover{background:rgba(255,255,255,.03)}
.mc-coin{display:flex;align-items:center;gap:10px;width:120px;flex-shrink:0}
.mc-icon{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}
.mc-icon.btc{background:#f7931a}
.mc-icon.eth{background:#627eea}
.mc-icon.sol{background:#9945ff}
.mc-icon.bnb{background:#f0b90b;color:#000}
.mc-icon.xrp{background:#0085c0}
.mc-coin b{font-size:14px;color:#eaecef;display:block}
.mc-coin small{font-size:11px;color:#848e9c}
.mc-chart{flex:1;height:32px;position:relative;overflow:hidden}
.mc-chart::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(14,203,129,.15),transparent);border-radius:4px}
.mc-price{text-align:right;min-width:100px;flex-shrink:0}
.mc-price span{display:block;font-size:14px;font-weight:700;color:#eaecef}
.mc-price em{font-style:normal;font-size:12px;font-weight:600}
.mc-price em.up{color:#0ecb81}
.mc-price em.down{color:#f6465d}
.mc-more{display:block;text-align:center;padding:12px;border-top:1px solid #2b3139;font-size:13px;color:#f0b90b;font-weight:600;transition:background .2s}
.mc-more:hover{background:rgba(240,185,11,.05)}

/* 滚动行情条 */
.ticker{background:#161a1e;border-top:1px solid #2b3139;padding:10px 0;overflow:hidden;white-space:nowrap}
.ticker-inner{display:inline-flex;gap:48px;animation:ticker 35s linear infinite}
.ticker-inner span{font-size:13px;color:#848e9c}
.ticker-inner em{font-style:normal;color:#0ecb81;font-weight:600;margin-left:6px}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* 通用区块 */
.sec-head{text-align:center;margin-bottom:56px}
.sec-tag{display:inline-block;background:rgba(240,185,11,.1);color:#f0b90b;border:1px solid rgba(240,185,11,.2);padding:4px 14px;border-radius:20px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:14px}
.sec-head h2{font-size:clamp(26px,3vw,38px);font-weight:800;color:#fff;margin-bottom:12px}
.sec-head p{font-size:15px;color:#848e9c;max-width:560px;margin:0 auto}

/* 下载区 */
.dl-section{padding:100px 0;background:#0f1217}
.dl-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px}
.dl-box{background:#161a1e;border:1px solid #2b3139;border-radius:16px;padding:32px 24px;transition:all .3s;position:relative;overflow:hidden}
.dl-box::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(240,185,11,.6),transparent);opacity:0;transition:opacity .3s}
.dl-box:hover{border-color:rgba(240,185,11,.25);transform:translateY(-6px);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.dl-box:hover::before{opacity:1}
.dl-box.hot{border-color:rgba(240,185,11,.3)}
.dl-box.hot::before{opacity:1}
.hot-tag{position:absolute;top:16px;right:16px;background:#f0b90b;color:#000;font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px}
.dl-box-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.dl-box-icon.android{background:linear-gradient(135deg,#3ddc84,#00a854)}
.dl-box-icon.ios{background:linear-gradient(135deg,#444,#1a1a1a)}
.dl-box-icon.pc{background:linear-gradient(135deg,#0078d4,#005a9e)}
.dl-box h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px}
.dl-box p{font-size:14px;color:#848e9c;line-height:1.7;margin-bottom:16px}
.dl-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:24px}
.dl-tags span{background:rgba(255,255,255,.05);color:#848e9c;font-size:11px;padding:3px 10px;border-radius:20px;border:1px solid #2b3139}
.dl-btn{display:block;text-align:center;padding:11px;border-radius:8px;font-size:14px;font-weight:600;transition:all .2s}
.dl-btn.android-btn{background:linear-gradient(135deg,#3ddc84,#00a854);color:#fff}
.dl-btn.ios-btn{background:linear-gradient(135deg,#444,#1a1a1a);color:#fff;border:1px solid #444}
.dl-btn.pc-btn{background:linear-gradient(135deg,#0078d4,#005a9e);color:#fff}
.dl-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.3)}
.dl-tip{text-align:center;font-size:14px;color:#848e9c}
.dl-tip a{color:#f0b90b;margin-left:6px}

/* 功能区 */
.features-sec{padding:100px 0;background:#0b0e11}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat-card{background:#161a1e;border:1px solid #2b3139;border-radius:16px;padding:28px 24px;transition:all .3s;position:relative}
.feat-card:hover{border-color:#2b3139;transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.3)}
.feat-num{font-size:40px;font-weight:900;color:rgba(240,185,11,.08);line-height:1;margin-bottom:8px}
.feat-ico{font-size:28px;margin-bottom:12px}
.feat-card h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px}
.feat-card p{font-size:14px;color:#848e9c;line-height:1.8}

/* 安全区 */
.security-sec{padding:100px 0;background:#0f1217}
.sec-row{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.sec-left .sec-tag{margin-bottom:16px}
.sec-left h2{font-size:clamp(28px,3vw,40px);font-weight:800;color:#fff;line-height:1.3;margin-bottom:20px}
.sec-left>p{font-size:15px;color:#848e9c;line-height:1.8;margin-bottom:32px}
.security-list{display:flex;flex-direction:column;gap:20px}
.sec-item{display:flex;gap:14px;align-items:flex-start}
.sec-check{width:24px;height:24px;border-radius:50%;background:rgba(14,203,129,.15);color:#0ecb81;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;margin-top:2px}
.sec-item b{display:block;font-size:15px;color:#eaecef;margin-bottom:4px}
.sec-item p{font-size:13px;color:#848e9c;line-height:1.7}
.security-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ss-card{background:#161a1e;border:1px solid #2b3139;border-radius:16px;padding:28px 20px;text-align:center;transition:all .3s}
.ss-card:hover{border-color:rgba(240,185,11,.2);transform:translateY(-3px)}
.ss-num{display:block;font-size:32px;font-weight:900;color:#f0b90b;margin-bottom:8px}
.ss-card>span:last-child{font-size:13px;color:#848e9c}

/* 使用指南 */
.guide-sec{padding:100px 0;background:#0b0e11}
.guide-row{display:flex;align-items:center;gap:16px;margin-bottom:40px}
.guide-card{flex:1;background:#161a1e;border:1px solid #2b3139;border-radius:16px;padding:32px 24px;text-align:center;transition:all .3s}
.guide-card:hover{border-color:rgba(240,185,11,.2);transform:translateY(-4px)}
.guide-step{font-size:11px;font-weight:700;color:#f0b90b;letter-spacing:2px;margin-bottom:14px}
.guide-emoji{font-size:40px;margin-bottom:14px}
.guide-card h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px}
.guide-card p{font-size:14px;color:#848e9c;line-height:1.7;margin-bottom:20px}
.guide-btn{display:inline-block;background:#f0b90b;color:#000;padding:9px 24px;border-radius:6px;font-size:13px;font-weight:700;transition:all .2s}
.guide-btn:hover{background:#e6a800;transform:translateY(-1px)}
.guide-arrow{font-size:24px;color:rgba(240,185,11,.3);flex-shrink:0}
.guide-tip{background:#161a1e;border:1px solid #2b3139;border-radius:12px;padding:20px 28px;display:flex;align-items:center;gap:12px;font-size:14px;color:#848e9c;flex-wrap:wrap}
.guide-tip a{color:#f0b90b;font-weight:600}

/* FAQ */
.faq-sec{padding:100px 0;background:#0f1217}
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-col{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#161a1e;border:1px solid #2b3139;border-radius:12px;overflow:hidden;transition:border-color .2s}
.faq-item.active{border-color:rgba(240,185,11,.25)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;cursor:pointer}
.faq-q span{font-size:14px;font-weight:600;color:#eaecef}
.faq-q i{color:#f0b90b;font-size:11px;font-style:normal;transition:transform .3s;flex-shrink:0}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;padding:0 20px 18px}
.faq-item.active .faq-a{display:block}
.faq-a p{font-size:13px;color:#848e9c;line-height:1.8}

/* CTA */
.cta-sec{padding:100px 0;position:relative;overflow:hidden;background:#0b0e11}
.cta-bg{position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 50%,rgba(240,185,11,.06) 0%,transparent 70%)}
.cta-inner{text-align:center;position:relative}
.cta-inner h2{font-size:clamp(28px,3.5vw,44px);font-weight:900;color:#fff;margin-bottom:16px;line-height:1.3}
.cta-inner p{font-size:16px;color:#848e9c;margin-bottom:36px}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* 悬浮栏 */
.fixbar{position:fixed;bottom:0;left:0;right:0;z-index:999;background:#161a1e;border-top:1px solid #2b3139;padding:12px 24px;display:flex;align-items:center;gap:16px;box-shadow:0 -8px 32px rgba(0,0,0,.5)}
.fixbar-l{display:flex;align-items:center;gap:12px;flex:1}
.fixbar-logo{width:32px;height:32px;background:#f0b90b;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:900;color:#000;flex-shrink:0}
/* about-seo区块 */
.about-seo{padding:80px 0;background:#0f1217}
.seo-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.seo-text .sec-tag{margin-bottom:14px}
.seo-text h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;color:#fff;line-height:1.3;margin-bottom:20px}
.seo-text p{font-size:14px;color:#848e9c;line-height:1.9;margin-bottom:14px}
.seo-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.seo-tags span{background:rgba(240,185,11,.08);color:#f0b90b;border:1px solid rgba(240,185,11,.2);font-size:12px;padding:4px 12px;border-radius:20px}
.seo-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stat-card{background:#161a1e;border:1px solid #2b3139;border-radius:14px;padding:22px 16px;text-align:center;transition:all .3s}
.stat-card:hover{border-color:rgba(240,185,11,.2);transform:translateY(-3px)}
.stat-n{display:block;font-size:26px;font-weight:900;color:#f0b90b;margin-bottom:6px}
.stat-n em{font-style:normal;font-size:16px}
.stat-l{font-size:12px;color:#848e9c}
.fixbar-l strong{display:block;font-size:14px;color:#fff;font-weight:700}
.fixbar-l span{font-size:12px;color:#848e9c}
.fixbar-r{display:flex;gap:10px}
.fb-btn{padding:8px 18px;border-radius:6px;font-size:13px;font-weight:600;transition:all .2s;white-space:nowrap}
.fb-btn.fb-ios{background:#333;color:#fff;border:1px solid #444}
.fb-btn.fb-and{background:linear-gradient(135deg,#3ddc84,#00a854);color:#fff}
.fb-btn.fb-guide{background:#f0b90b;color:#000}
.fb-btn:hover{transform:translateY(-1px);opacity:.9}
.fixbar-close{color:#848e9c;cursor:pointer;font-size:16px;padding:4px;flex-shrink:0}
.fixbar-close:hover{color:#fff}

/* Footer */
.footer{background:#0a0c0f;padding:70px 0 0;border-top:1px solid #1a1d23}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:50px}
.ft-brand .ft-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.ft-brand .ft-logo span{font-size:18px;font-weight:800;color:#fff}
.ft-brand .ft-logo em{color:#f0b90b;font-style:normal}
.ft-brand p{font-size:13px;color:#4a5568;line-height:1.8}
.ft-links h4{font-size:14px;font-weight:700;color:#eaecef;margin-bottom:18px}
.ft-links ul{display:flex;flex-direction:column;gap:9px}
.ft-links li a{font-size:13px;color:#4a5568;transition:color .2s;line-height:1.5}
.ft-links li a:hover{color:#f0b90b}
.footer-bot{border-top:1px solid #1a1d23;padding:20px 0;text-align:center}
.footer-bot p{font-size:12px;color:#2d3748;line-height:1.8}

/* 回顶部 */
.back-top{position:fixed;bottom:70px;right:20px;width:38px;height:38px;background:#f0b90b;color:#000;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;opacity:0;pointer-events:none;transition:all .3s;z-index:998;box-shadow:0 4px 16px rgba(240,185,11,.3)}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-3px)}

/* 响应式 */
@media(max-width:1024px){
  .seo-inner{grid-template-columns:1fr;gap:40px}
  .seo-stats{grid-template-columns:repeat(3,1fr)}
  .hero-content{grid-template-columns:1fr;gap:40px}
  .hero-right{display:none}
  .dl-row{grid-template-columns:1fr;max-width:420px;margin:0 auto 28px}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .sec-row{grid-template-columns:1fr;gap:40px}
  .faq-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
  .nav-menu,.nav-right{display:none}
  .hamburger{display:flex}
  .hero{padding:110px 0 0}
  .feat-grid{grid-template-columns:1fr}
  .guide-row{flex-direction:column}
  .guide-arrow{transform:rotate(90deg)}
  .footer-top{grid-template-columns:1fr}
  .fixbar{flex-wrap:wrap}
  .fixbar-r{width:100%;justify-content:center}
}
@media(max-width:480px){
  .hero h1{font-size:30px}
  .hero-actions{flex-direction:column}
  .hero-trust{flex-wrap:wrap;justify-content:center;gap:16px}
  .trust-sep{display:none}
  .cta-btns{flex-direction:column;align-items:center}
}