*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{
  --bg:#f4f8ff;
  --card:#ffffff;
  --text:#101828;
  --muted:#667085;
  --line:#dbe7f6;
  --blue:#0B63F6;
  --navy:#0B1B3A;
  --cyan:#E7F9FF;
  --soft:#F7FAFF;
  --shadow:0 24px 70px rgba(15,40,80,.10);
  --radius:30px;
}
body{
  margin:0;
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f5f9ff 0%,#ffffff 100%);
  line-height:1.72;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
.container{width:min(1220px,calc(100% - 40px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line)
}
.nav-shell{display:flex;align-items:center;gap:22px;min-height:84px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{width:44px;height:44px;border-radius:16px;background:linear-gradient(135deg,var(--blue),#00B8FF);color:#fff;display:grid;place-items:center;font-weight:950;box-shadow:0 14px 32px rgba(11,99,246,.22)}
.brand strong{display:block;line-height:1.1;font-size:16px}
.brand em{display:block;font-size:11px;font-style:normal;letter-spacing:.14em;color:var(--muted);margin-top:2px}
.nav-links{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-links a{font-weight:800;font-size:14px;color:#344054}
.nav-links a.active,.nav-links a:hover{color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{display:none;margin-left:auto;border:0;background:transparent;padding:0;cursor:pointer;flex-direction:column;gap:5px}
.menu-toggle span{width:26px;height:2px;background:var(--navy);display:block;border-radius:2px}
.btn{border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:900;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:.22s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,var(--blue),#00A3FF);color:#fff;box-shadow:0 16px 34px rgba(11,99,246,.22)}
.btn-dark{background:var(--navy);color:#fff}
.btn-light,.btn-outline{background:#fff;color:var(--blue);border-color:var(--line)}
.hero{padding:64px 0 34px}
.hero-grid,.page-hero-grid,.structure-grid,.download-card{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.hero-copy{padding:34px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.crumbs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.crumbs span{background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:var(--blue);font-size:12px;font-weight:900}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);font-weight:950}
.hero h1,.page-hero h1,.section-intro h2,.section-head h2,.download-card h2,.seo-grid h2,.compare-detail h2,.entry-grid h2{
  margin:14px 0 12px;font-size:clamp(36px,5.2vw,70px);line-height:1;letter-spacing:-.06em;color:var(--navy)
}
.hero p,.page-hero p,.section-intro p,.section-head p,.download-card p,.seo-grid p,.product-body p,.compare-detail p,.entry-grid p,.wallet-steps p,.security-timeline p,.support-list p{margin:0;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
.hero-stats article{background:var(--soft);border:1px solid var(--line);border-radius:22px;padding:16px}
.hero-stats strong{display:block;font-size:26px;color:var(--blue)}
.hero-stats span{font-size:13px;color:var(--muted)}
.hero-board{position:relative}
.hero-image,.page-hero img,.section-media,.download-img{overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.hero-image img{width:100%;height:600px;object-fit:cover}
.hero-chip{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:22px;padding:14px 16px;box-shadow:var(--shadow)}
.hero-chip span{display:block;font-size:12px;color:var(--muted)}
.hero-chip b{font-size:17px;color:var(--navy)}
.chip-a{left:-10px;bottom:28px}
.chip-b{right:-10px;top:28px}
.quick-links{padding:22px 0}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.quick-grid a,.quick-grid button{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;text-align:left;box-shadow:var(--shadow);cursor:pointer}
.quick-grid span{display:block;color:var(--blue);font-size:12px;font-weight:950;letter-spacing:.12em;text-transform:uppercase}
.quick-grid strong{display:block;margin-top:8px;color:var(--navy);font-size:20px;line-height:1.2}
.section,.page-hero{padding:72px 0}
.structure-map{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.structure-map a{padding:20px;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.structure-map b{display:block;font-size:22px;color:var(--navy)}
.structure-map span{display:block;color:var(--muted);margin-top:6px}
.section-head{margin-bottom:24px;max-width:850px}
.product-suite{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.product-tile{display:grid;grid-template-columns:220px 1fr;gap:18px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);align-items:center}
.product-img{border-radius:22px;background:var(--soft);border:1px solid var(--line);padding:14px}
.product-img img{width:100%;aspect-ratio:1/1;object-fit:contain}
.product-body span{font-size:12px;color:var(--blue);font-weight:950;letter-spacing:.12em;text-transform:uppercase}
.product-body h3{font-size:27px;letter-spacing:-.04em;margin:8px 0;color:var(--navy)}
.product-body ul{display:flex;gap:8px;flex-wrap:wrap;list-style:none;padding:0;margin:14px 0 0}
.product-body li{font-size:13px;background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:7px 10px}
.center-action{text-align:center;margin-top:24px}
.download-card{background:#0B1B3A;color:#fff;border-radius:34px;padding:32px;box-shadow:var(--shadow)}
.download-card h2{color:#fff}
.download-card p{color:#CBD5E1}
.mini-grid{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}
.mini-grid span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);padding:9px 12px;border-radius:999px}
.download-img img{width:100%;height:360px;object-fit:cover}
.seo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.seo-grid article,.wallet-steps article,.security-timeline article,.support-list article,.entry-grid article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}
.seo-grid h2{font-size:30px}
.page-hero img{width:100%;height:420px;object-fit:cover}
.compare-table{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.compare-row{display:grid;grid-template-columns:1fr 1.55fr 1.25fr 1fr 1.3fr .7fr;gap:14px;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-head{background:var(--navy);color:#fff;font-weight:900}
.compare-row span,.compare-row strong{font-size:14px}
.mini-btn{border:1px solid var(--line);background:#fff;color:var(--blue);border-radius:999px;padding:9px 12px;font-weight:900;cursor:pointer}
.wallet-steps,.security-timeline,.support-list,.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.wallet-steps article span,.security-timeline article b{width:46px;height:46px;border-radius:14px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:16px}
.wallet-steps h2,.security-timeline h2,.support-list h2,.entry-grid h2{font-size:25px;margin:0 0 10px;line-height:1.1}
.security-timeline{grid-template-columns:repeat(4,1fr)}
.support-list{grid-template-columns:repeat(2,1fr)}
.entry-grid{grid-template-columns:repeat(3,1fr)}
.entry-grid strong{display:block;word-break:break-all;margin:16px 0}
.site-footer{padding:28px 0 54px;border-top:1px solid var(--line);background:#fff}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:24px}
.footer-brand strong{font-size:22px}
.footer-brand p{margin:8px 0 0;color:var(--muted);max-width:650px}
.footer-links{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.footer-contact{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;color:var(--blue);font-weight:900}
.contact-modal{display:none;position:fixed;inset:0;z-index:100;align-items:center;justify-content:center}
.contact-modal.open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(10,20,40,.55);backdrop-filter:blur(8px)}
.modal-panel{position:relative;z-index:2;width:min(430px,calc(100% - 28px));background:#fff;border-radius:30px;padding:28px;text-align:center;box-shadow:0 40px 100px rgba(10,20,40,.25)}
.modal-close{position:absolute;right:16px;top:12px;border:0;background:transparent;font-size:30px;cursor:pointer}
.modal-panel h2{font-size:30px;color:var(--navy);margin:0 0 18px}
.qr-card{padding:10px;border:1px solid var(--line);border-radius:22px}
.qr-card img{width:100%;border-radius:14px}
.modal-actions{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.modal-actions a{padding:10px 14px;border-radius:999px;background:var(--soft);border:1px solid var(--line);color:var(--blue);font-weight:900}
.float-contact{position:fixed;right:18px;bottom:18px;border:0;background:linear-gradient(135deg,var(--blue),#00A3FF);color:#fff;border-radius:999px;padding:14px 18px;box-shadow:0 16px 34px rgba(11,99,246,.22);font-weight:900;cursor:pointer;z-index:40}
.lock{overflow:hidden}
@media(max-width:1180px){
  .nav-links,.nav-actions{display:none}
  .menu-toggle{display:flex}
  .hero-grid,.page-hero-grid,.structure-grid,.download-card{grid-template-columns:1fr}
  .quick-grid,.product-suite,.seo-grid,.wallet-steps,.security-timeline{grid-template-columns:repeat(2,1fr)}
  .product-tile{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr 1fr}
  .compare-head{display:none}
  .footer-grid{flex-direction:column;align-items:flex-start}
  .footer-links{align-items:flex-start}
  .hero-image img{height:auto}
  .hero-chip{position:static;margin-top:12px}
}
@media(max-width:760px){
  .container{width:min(100%,calc(100% - 24px))}
  .hero,.section,.page-hero{padding:46px 0}
  .quick-grid,.product-suite,.seo-grid,.wallet-steps,.security-timeline,.support-list,.entry-grid,.structure-map{grid-template-columns:1fr}
  .hero-copy,.download-card{padding:24px}
  .hero h1,.page-hero h1,.section-intro h2,.section-head h2,.download-card h2{font-size:38px}
  .hero-stats{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr}
}