/* ===== 欧易 OKX欧易 官网 - 共享样式 (Deep-Sea Fintech) ===== */
:root{
  --bg:#0b1220; --bg2:#0e1728; --card:#121c30; --card2:#182338;
  --line:#233048; --line2:#2e3d5c;
  --brand:#00e5a0; --brand2:#14b8a6; --blue:#3b82f6; --gold:#f59e0b;
  --txt:#e8eef7; --txt2:#aab6c8; --txt3:#6d7a90;
  --grad:linear-gradient(135deg,#00e5a0 0%,#14b8a6 100%);
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --r:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--txt);line-height:1.75;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:700;line-height:1.3}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.section{padding:72px 0}
.sec-tag{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);font-weight:600;text-transform:uppercase;margin-bottom:12px}
.sec-title{font-size:34px;margin-bottom:14px;letter-spacing:.5px}
.sec-sub{color:var(--txt2);font-size:17px;max-width:760px;margin-bottom:40px}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}
/* ===== 导航 ===== */
header{position:sticky;top:0;z-index:100;background:rgba(11,18,32,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.5px}
.logo img{width:30px;height:30px;border-radius:7px}
.logo span{color:var(--txt)}
.logo b{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--txt2)}
.nav-links a:hover{color:var(--txt);background:var(--card)}
.nav-cta{display:flex;align-items:center;gap:10px}
.lang-switch{display:flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:9px;padding:3px}
.lang-switch a{padding:5px 11px;border-radius:7px;font-size:13px;color:var(--txt2)}
.lang-switch a.on{background:var(--card2);color:var(--brand);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 22px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;transition:.2s;border:none}
.btn-grad{background:var(--grad);color:#04120c}
.btn-grad:hover{filter:brightness(1.1);color:#04120c;box-shadow:0 8px 24px rgba(0,229,160,.35)}
.btn-line{border:1px solid var(--line2);color:var(--txt);background:transparent}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:14px 30px;font-size:16px}
/* ===== Hero + 模拟器 ===== */
.hero{position:relative;padding:60px 0 80px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(1000px 500px at 80% -10%,rgba(0,229,160,.16),transparent 60%),radial-gradient(800px 400px at 10% 110%,rgba(59,130,246,.14),transparent 60%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:46px;letter-spacing:.5px;margin-bottom:18px}
.hero h1 .hl{color:var(--brand)}
.hero .lead{font-size:18px;color:var(--txt2);margin-bottom:28px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap}
.hstat b{font-size:24px;color:var(--brand);display:block}
.hstat span{font-size:13px;color:var(--txt3)}
/* 客户端模拟器 */
.sim{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.sim-head{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line);background:var(--card2)}
.sim-dots{display:flex;gap:6px}
.sim-dots i{width:11px;height:11px;border-radius:50%;background:#ff5f57}
.sim-dots i:nth-child(2){background:#febc2e}
.sim-dots i:nth-child(3){background:#28c840}
.sim-title{font-size:13px;color:var(--txt3)}
.sim-body{padding:16px}
.sim-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.sim-chip{padding:5px 12px;border-radius:20px;background:var(--card2);font-size:12px;color:var(--txt2)}
.sim-chip.on{background:var(--grad);color:#04120c;font-weight:600}
.sim-chart{background:linear-gradient(180deg,var(--card2),var(--card));border-radius:10px;padding:16px;margin-bottom:14px}
.sim-chart .price{font-size:28px;font-weight:800}
.sim-chart .price small{font-size:14px;color:var(--brand);font-weight:600}
.sim-bars{display:flex;align-items:flex-end;gap:5px;height:90px;margin-top:12px}
.sim-bars i{flex:1;background:var(--grad);border-radius:3px 3px 0 0;opacity:.7}
.sim-bars i:nth-child(odd){opacity:.4;background:var(--blue)}
.sim-rows{display:flex;flex-direction:column;gap:8px}
.sim-row{display:flex;align-items:center;justify-content:space-between;padding:11px 13px;background:var(--card);border-radius:9px;border:1px solid var(--line)}
.sim-row .coin{display:flex;align-items:center;gap:9px;font-weight:600;font-size:14px}
.sim-row .coin i{width:26px;height:26px;border-radius:50%;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-style:normal;color:#04120c;font-weight:800}
.sim-row .up{color:var(--brand);font-weight:600}
.sim-row .dn{color:#ff5f57;font-weight:600}
/* ===== 核心功能 ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.25s}
.fcard:hover{transform:translateY(-5px);border-color:var(--brand);box-shadow:var(--shadow)}
.fcard .ico{width:52px;height:52px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.fcard h3{font-size:19px;margin-bottom:10px}
.fcard p{color:var(--txt2);font-size:14.5px;margin-bottom:14px}
.fcard .more{color:var(--brand);font-weight:600;font-size:14px}
/* ===== 公告 ===== */
.notice{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 26px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.notice .tag{background:var(--grad);color:#04120c;font-weight:700;padding:5px 12px;border-radius:7px;font-size:13px;white-space:nowrap}
.notice .txt{flex:1;color:var(--txt2);font-size:15px}
.notice .txt a{color:var(--txt);font-weight:500}
.notice .txt a:hover{color:var(--brand)}
/* ===== 信任背书 ===== */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.tcard{text-align:center;padding:30px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.tcard b{font-size:30px;color:var(--brand);display:block;margin-bottom:8px}
.tcard span{color:var(--txt2);font-size:14px}
/* ===== 应用场景 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scard{background:var(--card2);border-radius:var(--r);padding:26px;border:1px solid var(--line)}
.scard h3{font-size:18px;margin:14px 0 9px}
.scard .ico{font-size:28px}
.scard p{color:var(--txt2);font-size:14.5px}
/* ===== 对比表 ===== */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.compare{width:100%;border-collapse:collapse;min-width:640px}
.compare th,.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px}
.compare th{background:var(--card2);font-weight:700;color:var(--txt)}
.compare td{color:var(--txt2)}
.compare .yes{color:var(--brand);font-weight:600}
.compare .no{color:var(--txt3)}
.compare tr:last-child td{border-bottom:none}
/* ===== 新闻 Tabs ===== */
.tabs{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.tabs a{padding:9px 20px;border-radius:22px;border:1px solid var(--line);color:var(--txt2);font-size:14px}
.tabs a.on{background:var(--grad);color:#04120c;border-color:transparent;font-weight:600}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ncard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.25s}
.ncard:hover{transform:translateY(-4px);border-color:var(--brand)}
.ncard .thumb{height:150px;background:linear-gradient(135deg,#0e1c33,#123a3a);display:flex;align-items:center;justify-content:center;font-size:40px}
.ncard .body{padding:18px}
.ncard .cat{font-size:12px;color:var(--brand);font-weight:600;margin-bottom:8px;display:block}
.ncard h3{font-size:16.5px;margin-bottom:10px;line-height:1.45}
.ncard .meta{font-size:12.5px;color:var(--txt3)}
/* ===== 评论 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.rcard .stars{color:var(--gold);margin-bottom:12px;letter-spacing:2px}
.rcard p{color:var(--txt2);font-size:14.5px;margin-bottom:16px}
.rcard .who{display:flex;align-items:center;gap:11px}
.rcard .who i{width:38px;height:38px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#04120c;font-weight:700;font-style:normal}
.rcard .who b{font-size:14px;display:block}
.rcard .who span{font-size:12px;color:var(--txt3)}
/* ===== 下载 ===== */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.dl-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px 14px;text-align:center;transition:.25s}
.dl-card:hover{border-color:var(--brand);transform:translateY(-4px)}
.dl-card .ico{font-size:34px;margin-bottom:12px}
.dl-card h3{font-size:16px;margin-bottom:6px}
.dl-card span{font-size:12.5px;color:var(--txt3);display:block;margin-bottom:14px}
.dl-card a.btn{font-size:14px;padding:9px 16px;width:100%}
/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:var(--card);overflow:hidden}
.faq-q{padding:18px 22px;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:16px}
.faq-q .n{color:var(--brand);margin-right:12px}
.faq-a{padding:0 22px 20px;color:var(--txt2);font-size:14.5px;display:none}
.faq-item:target .faq-a{display:block}
.faq-item:target .faq-q{color:var(--brand)}
/* ===== CTA ===== */
.cta{background:linear-gradient(135deg,#0e1c33,#123a3a);border:1px solid var(--line2);border-radius:20px;padding:56px 40px;text-align:center}
.cta h2{font-size:32px;margin-bottom:14px}
.cta p{color:var(--txt2);margin-bottom:28px}
/* ===== 页脚 ===== */
footer{background:var(--bg2);border-top:1px solid var(--line);padding:56px 0 28px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.foot-brand p{color:var(--txt2);font-size:14px;margin-top:14px;max-width:300px}
.foot-col h4{font-size:15px;margin-bottom:16px}
.foot-col a{display:block;color:var(--txt2);font-size:14px;margin-bottom:10px}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--txt3)}
.foot-links a{color:var(--txt3);margin-right:18px;font-size:13px}
/* ===== 面包屑 ===== */
.breadcrumb{font-size:13.5px;color:var(--txt3);margin:22px 0;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--txt2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:var(--txt3)}
/* ===== 页面头 ===== */
.page-hero{text-align:center;padding:52px 0 8px}
.page-hero h1{font-size:38px;margin-bottom:12px}
.page-hero p{color:var(--txt2);max-width:680px;margin:0 auto}
/* ===== 文章详情 ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
.article-layout>*{min-width:0}
.article-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:36px}
.article-main .art-meta{display:flex;gap:16px;align-items:center;color:var(--txt3);font-size:13.5px;margin-bottom:18px;flex-wrap:wrap}
.article-main .art-meta .cat{color:var(--brand);font-weight:600}
.article-main h2{font-size:24px;margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--brand)}
.article-main p{margin-bottom:16px;color:#c9d3e0;font-size:15.5px}
.article-main img{width:100%;border-radius:12px;margin:18px 0}
.article-main blockquote{border-left:4px solid var(--blue);background:var(--card2);padding:16px 20px;margin:20px 0;border-radius:0 10px 10px 0;color:var(--txt2);font-style:italic}
.art-nav{display:flex;justify-content:space-between;gap:14px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.art-nav a{color:var(--txt2);font-size:14px}
.art-nav a:hover{color:var(--brand)}
.art-sidebar h4{font-size:15px;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-list li{margin-bottom:12px;font-size:14px}
.side-list a{color:var(--txt2);line-height:1.5}
.side-list a:hover{color:var(--brand)}
.side-cat a{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:18px;font-size:13px;color:var(--txt2);margin:0 8px 8px 0}
.side-cat a:hover{border-color:var(--brand);color:var(--brand)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
/* ===== 评论区 ===== */
.comments{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.comments h3{font-size:18px;margin-bottom:20px}
.cmt{display:flex;gap:13px;padding:16px 0;border-bottom:1px solid var(--line)}
.cmt .ava{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#04120c;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cmt .cmt-body b{font-size:14px;display:block}
.cmt .cmt-body .cmt-t{font-size:12px;color:var(--txt3);margin-bottom:6px}
.cmt .cmt-body p{font-size:14px;color:var(--txt2)}
/* ===== 步骤列表 ===== */
.steps{margin:18px 0}
.step{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--line)}
.step:last-child{border-bottom:none}
.step .num{width:34px;height:34px;border-radius:50%;background:var(--grad);color:#04120c;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px}
.step b{display:block;margin-bottom:5px;font-size:15.5px}
.step p{color:var(--txt2);font-size:14.5px}
/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .features-grid,.trust-grid,.scene-grid,.news-grid,.review-grid,.related-grid{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr}
}
@media(max-width:640px){
  .section{padding:50px 0}
  .sec-title{font-size:26px}
  .hero h1{font-size:32px}
  .features-grid,.trust-grid,.scene-grid,.news-grid,.review-grid,.related-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .foot-grid{grid-template-columns:1fr}
}