:root{
  --ink:#16202e;
  --ink-soft:#45536a;
  --line:#e3e9f3;
  --bg:#f6f8ff;
  --card:#ffffff;
  --brand:#2f5bff;
  --brand-2:#7a3cff;
  --brand-3:#00c2b2;
  --accent:#ff8a3d;
  --radius:18px;
  --shadow:0 10px 30px rgba(31,54,120,.08);
  --shadow-lg:0 20px 50px rgba(31,54,120,.14);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 8% -6%, #e7edff 0%, rgba(231,237,255,0) 60%),
    radial-gradient(900px 500px at 100% 4%, #e2fbf7 0%, rgba(226,251,247,0) 62%),
    linear-gradient(180deg,#f6f8ff 0%,#f3f6ff 45%,#f7f9ff 100%);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 20px;
}
section{position:relative}
.sec{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);
  background:#eef2ff;
  border:1px solid #dbe3ff;
  padding:6px 14px;border-radius:999px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
h1,h2,h3,h4{line-height:1.3;font-weight:800;letter-spacing:.01em}
h2{font-size:clamp(22px,3.2vw,32px);margin-bottom:12px}
h3{font-size:17px}
.lead{color:var(--ink-soft);font-size:15.5px}
.grad-text{
  background:linear-gradient(100deg,#2f5bff 0%,#7a3cff 45%,#00c2b2 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(12px);
  background:rgba(255,255,255,.86);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:auto;max-width:132px}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-txt strong{font-size:16px}
.brand-txt span{font-size:11px;color:var(--ink-soft);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{
  display:inline-block;padding:9px 11px;border-radius:9px;
  font-size:14px;font-weight:600;color:#2b3a52;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--brand);background:#eef2ff}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-family:inherit;
  font-weight:700;font-size:15px;border-radius:12px;
  padding:12px 22px;transition:transform .18s ease,box-shadow .22s ease,background .22s ease;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{
  color:#fff;
  background:linear-gradient(100deg,#2f5bff,#7a3cff);
  box-shadow:0 10px 24px rgba(64,80,220,.28);
}
.btn-primary:hover{box-shadow:0 16px 34px rgba(64,80,220,.36);transform:translateY(-2px)}
.btn-ghost{
  color:#25344c;background:#fff;border:1px solid #d8e1f5;
}
.btn-ghost:hover{border-color:#bccbf0;box-shadow:var(--shadow);transform:translateY(-2px)}
.btn-soft{
  color:#1d3fbf;background:#eaeeff;border:1px solid #d6dfff;
}
.btn-soft:hover{background:#dfe6ff;transform:translateY(-2px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid #d8e1f5;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#25344c;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#25344c;transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{padding:58px 0 48px;overflow:hidden}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start;
}
.hero-copy h1{
  font-size:clamp(28px,4.4vw,46px);margin-bottom:18px;letter-spacing:.01em;
}
.hero-copy p{color:var(--ink-soft);font-size:16px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags span{
  font-size:12.5px;font-weight:600;color:#3d4c66;
  background:rgba(255,255,255,.85);
  border:1px solid #dfe6f7;border-radius:999px;padding:6px 12px;
}
.hero-panel{
  background:linear-gradient(160deg,#ffffff 0%,#f3f6ff 100%);
  border:1px solid #e1e8fa;
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow-lg);
  position:relative;
  overflow:hidden;
}
.hero-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#cdd9ff,#eaf3ff 60%,transparent 70%);
  opacity:.85;
}
.hero-panel h2{font-size:16px;color:#33456a;margin-bottom:14px;position:relative}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px dashed #e2e9f8;position:relative;
}
.panel-row:last-child{border-bottom:none}
.panel-row span{font-size:13.5px;color:var(--ink-soft)}
.panel-row strong{font-size:14px;color:#1f3160}
.panel-badge{
  display:inline-block;font-size:11px;font-weight:700;color:#0a7a6d;
  background:#e0fbf5;border:1px solid #b6f0e4;border-radius:999px;padding:2px 9px;
}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:38px;
}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:18px;text-align:center;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.metric b{display:block;font-size:24px;color:#20335f;line-height:1.2}
.metric small{font-size:12.5px;color:var(--ink-soft)}

/* ---------- Sections generic ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ico{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eef2ff,#e2fbf7);color:#2f5bff;font-weight:800;font-size:15px;
  margin-bottom:14px;
}
.card p{color:var(--ink-soft);font-size:14px}
.card h3{margin-bottom:8px;color:#1d2c45}

/* about */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.about-list{display:grid;gap:12px;margin-top:18px}
.about-item{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;
  box-shadow:var(--shadow);
}
.about-item i{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,#2f5bff,#00c2b2);color:#fff;font-style:normal;
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.about-item b{display:block;font-size:14.5px;color:#1d2c45}
.about-item span{font-size:13px;color:var(--ink-soft)}

/* service cards */
.service-card{display:flex;flex-direction:column;gap:10px}
.service-card h3{font-size:16px}
.tags-mini{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:8px}
.tags-mini span{font-size:11.5px;font-weight:600;color:#3d4c66;background:#f1f5ff;border:1px solid #e0e8fb;border-radius:6px;padding:3px 8px}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;position:relative;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;font-weight:800;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#2f5bff,#7a3cff);
  margin-bottom:12px;
}
.step h3{font-size:15.5px;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--ink-soft)}

/* solutions */
.solution{display:flex;flex-direction:column;gap:8px}
.solution .ico{background:linear-gradient(135deg,#fff1e6,#ffe4d3);color:#d9611c}

/* table */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:8px;box-shadow:var(--shadow);overflow-x:auto;
}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:14px 16px;text-align:left;font-size:14px;border-bottom:1px solid #eef2fb}
th{background:#f4f7ff;color:#22315a;font-weight:800;font-size:13.5px;white-space:nowrap}
td{color:#3a4a63}
tbody tr:hover{background:#fafbff}
.tick{color:#0a9a6c;font-weight:800}
.dash{color:#9aa8c0}

/* review / score */
.score-box{
  display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:stretch;
}
.score-main{
  background:linear-gradient(160deg,#2f5bff,#7a3cff 60%,#00b1a6);
  color:#fff;border-radius:22px;padding:28px;display:flex;flex-direction:column;justify-content:center;
  box-shadow:0 18px 40px rgba(74,70,220,.28);
}
.score-main b{font-size:52px;line-height:1;letter-spacing:-.02em}
.score-main small{font-size:13px;opacity:.86;margin-top:6px}
.score-main .stars{font-size:20px;letter-spacing:4px;margin-top:14px;color:#ffe27a}
.score-list{display:grid;gap:10px}
.score-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:14px;
}
.score-list li span{color:var(--ink-soft)}
.score-list li b{color:#1d2c45}

/* token price */
.price-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.price-tags a{
  font-size:13px;font-weight:700;color:#26408f;background:#eaf0ff;
  border:1px solid #d7e1ff;border-radius:10px;padding:8px 14px;transition:.2s;
}
.price-tags a:hover{background:#dfe8ff;transform:translateY(-2px)}
.price-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);position:relative;transition:.25s;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.price-card.feature{border:2px solid #c9d5ff;background:linear-gradient(180deg,#fbfcff,#f2f6ff)}
.price-card b{display:block;font-size:22px;color:#1d2c45}
.price-card small{font-size:12.5px;color:var(--ink-soft);display:block;margin-top:4px}
.price-card ul{margin-top:14px;display:grid;gap:8px}
.price-card ul li{font-size:13.5px;color:#3d4c66;padding-left:16px;position:relative}
.price-card ul li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:#2f5bff}
.ribbon{
  position:absolute;top:14px;right:14px;font-size:11px;font-weight:800;color:#fff;
  background:linear-gradient(90deg,#ff8a3d,#ff5f6d);border-radius:999px;padding:3px 10px;
}

/* case */
.case-card{padding:0;overflow:hidden}
.case-media{width:100%;aspect-ratio:16/9;overflow:hidden;background:#eef2fb}
.case-media img{width:100%;height:100%;object-fit:contain}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:16px;margin-bottom:6px}
.case-body p{font-size:13.5px;color:var(--ink-soft)}

/* comments */
.comment{display:flex;flex-direction:column;gap:10px}
.comment-top{display:flex;align-items:center;gap:10px}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;color:#fff;
  background:linear-gradient(135deg,#2f5bff,#00c2b2);
}
.comment-top b{font-size:14px;color:#1d2c45}
.comment-top small{display:block;font-size:12px;color:var(--ink-soft)}
.comment p{font-size:13.5px;color:#3d4c66}
.comment .stars{color:#ffb400;font-size:13px;letter-spacing:2px}

/* articles */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.article{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;
  box-shadow:var(--shadow);transition:.25s;
}
.article:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.article i{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;font-style:normal;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;
  color:#2f5bff;background:#eef2ff;
}
.article b{display:block;font-size:14.5px;color:#1d2c45;margin-bottom:4px}
.article span{font-size:12.5px;color:var(--ink-soft)}

/* form */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow-lg)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;font-weight:700;color:#2b3a52}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:#1d2c45;
  background:#fafbff;border:1px solid #dfe6f7;border-radius:10px;
  padding:11px 13px;outline:none;transition:border .2s,box-shadow .2s;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:#9fb4ff;box-shadow:0 0 0 3px rgba(47,91,255,.12);background:#fff;
}
.field textarea{resize:vertical;min-height:104px}
.contact-list{display:grid;gap:12px;margin-top:16px}
.contact-item{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:14px 16px;box-shadow:var(--shadow);
}
.contact-item b{display:block;font-size:13.5px;color:#1d2c45}
.contact-item span{font-size:13px;color:var(--ink-soft);word-break:break-all}
.qr{width:110px;border-radius:10px;border:1px solid var(--line);background:#fff;padding:5px}

/* faq */
.faq{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow);transition:box-shadow .25s;
}
.faq-item.open{box-shadow:var(--shadow-lg)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;font-family:inherit;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 18px;font-size:14.5px;font-weight:700;color:#1d2c45;
}
.faq-q i{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;font-style:normal;font-size:15px;
  display:flex;align-items:center;justify-content:center;color:#2f5bff;background:#eef2ff;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-q i{transform:rotate(45deg);background:#dfe6ff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 18px 16px;font-size:13.8px;color:var(--ink-soft)}

/* friend links / footer */
.links-cloud{display:flex;flex-wrap:wrap;gap:10px}
.links-cloud a{
  font-size:13px;color:#31415c;background:#fff;border:1px solid var(--line);
  border-radius:9px;padding:7px 13px;transition:.2s;
}
.links-cloud a:hover{color:var(--brand);border-color:#bccbf0;transform:translateY(-2px)}

.site-footer{
  margin-top:0;
  background:linear-gradient(180deg,#101a30,#0c1526);
  color:#c4cee2;
  padding:44px 0 22px;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:26px}
.site-footer h4{font-size:14px;color:#fff;margin-bottom:12px}
.site-footer p,.site-footer a,.site-footer li{font-size:13px;color:#b6c2da}
.site-footer a:hover{color:#fff}
.footer-links{display:grid;gap:8px}
.footer-bottom{
  margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:#93a1bd;
}
.floating{
  position:fixed;right:18px;bottom:80px;z-index:80;display:flex;flex-direction:column;gap:10px;
}
.float-btn{
  width:48px;height:48px;border-radius:14px;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-family:inherit;
  font-size:12px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#2f5bff,#7a3cff);
  box-shadow:0 10px 24px rgba(52,70,200,.34);
  transition:transform .2s ease;
}
.float-btn:hover{transform:translateY(-3px)}
.to-top{
  width:48px;height:48px;border-radius:14px;border:1px solid #d8e1f5;background:#fff;
  color:#25344c;cursor:pointer;font-size:16px;font-weight:800;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important}
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .about-wrap{grid-template-columns:1fr}
  .grid-3,.grid-4,.price-cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .score-box{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .article-list{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 20px 16px;display:none;
    box-shadow:0 18px 34px rgba(31,54,120,.12);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 10px;border-radius:8px}
  .nav-cta .btn{padding:10px 14px;font-size:13.5px}
  .nav-wrap{position:relative;flex-wrap:nowrap}
}
@media (max-width:640px){
  .sec{padding:44px 0}
  .hero{padding:36px 0 30px}
  .grid-3,.grid-4,.grid-2,.price-cards,.steps,.form-row{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr);gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .card,.form-card{padding:20px}
  .site-footer{padding:34px 0 18px}
  .floating{right:12px;bottom:70px}
  .hero-actions .btn{width:100%}
  .brand img{max-width:112px}
}