:root{
  --bg:#f6f7fb;
  --fg:#0b1220;
  --muted:#5b667a;
  --card:rgba(255,255,255,.58);
  --line:rgba(15,23,42,.10);
  --accent:#5b7cff;
  --shadow:0 14px 40px rgba(15,23,42,.10);
  --radius:18px;
}
*{box-sizing:border-box} html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei";
  color:var(--fg);
  background:
    radial-gradient(900px 520px at 20% -10%, rgba(91,124,255,.16), transparent 62%),
    radial-gradient(700px 420px at 90% 0%, rgba(140,211,255,.22), transparent 60%),
    var(--bg);
}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:40px 20px 90px}

.topbar{
  position:sticky;top:0;z-index:30;
  background:rgba(255,255,255,.62);
  backdrop-filter:saturate(1.2) blur(14px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;
}
.brand{font-weight:650;letter-spacing:.3px}
.nav{display:flex;gap:14px;align-items:center}
.nav a{color:var(--muted);font-size:14px}
.nav a:hover{color:var(--fg)}

.btn{
  border:1px solid rgba(15,23,42,.14);
  background:rgba(255,255,255,.50);
  backdrop-filter:saturate(1.1) blur(10px);
  color:var(--fg);
  padding:10px 14px;
  border-radius:999px;
  font-size:14px;
  cursor:pointer;
}
.btn:hover{border-color:rgba(15,23,42,.24)}
.btn.primary{background:var(--accent);border-color:transparent;color:white;font-weight:650}
.btn.ghost{background:rgba(255,255,255,.65)}

.hero{display:grid;grid-template-columns:1.4fr .9fr;gap:22px;align-items:stretch;margin-top:18px}
h1{font-size:44px;line-height:1.08;margin:0 0 12px}
.lead{color:rgba(11,18,32,.86);font-size:16px;line-height:1.7;margin:0 0 18px}
.fine{color:var(--muted);font-size:12px;line-height:1.7;margin:14px 0 0}
.ctaRow{display:flex;gap:12px;flex-wrap:wrap}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow:var(--shadow);
  backdrop-filter:saturate(1.2) blur(16px);
}
.kpi{display:flex;flex-direction:column;justify-content:center}
.kpiTop{color:var(--muted);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.kpiValue{font-size:26px;font-weight:700;margin-top:10px}
.kpiSub{color:var(--muted);font-size:13px;margin-top:10px;line-height:1.55}
.muted{color:var(--muted)} .small{font-size:12px}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.tag{display:inline-block;font-size:12px;color:rgba(11,18,32,.72);border:1px solid rgba(15,23,42,.14);padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.50);backdrop-filter:blur(10px)}
.card h3{margin:12px 0 8px;font-size:18px}
.card p{margin:0 0 10px;line-height:1.65}
.link{color:rgba(11,18,32,.92)}

.section{margin-top:40px}
.section h2{font-size:22px;margin:0 0 14px}
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.step{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.46);backdrop-filter:blur(14px)}
.num{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:rgba(91,124,255,.12);border:1px solid rgba(91,124,255,.22);font-weight:700;color:rgba(11,18,32,.86)}

.footer{border-top:1px solid var(--line);padding:26px 18px;background:rgba(255,255,255,.50);backdrop-filter:blur(14px)}
.footerInner{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.id{display:flex;align-items:center;gap:12px}
.avatar{width:34px;height:34px;border-radius:999px;object-fit:cover;border:1px solid rgba(15,23,42,.14)}
.name{font-weight:650}

.modal{position:fixed;inset:0;display:none;z-index:60}
.modal[aria-hidden="false"]{display:block}
.modalOverlay{position:absolute;inset:0;background:rgba(2,6,23,.35)}
.modalCard{position:relative;width:min(520px,92vw);margin:12vh auto 0;background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(18px)}
.modalHead{display:flex;justify-content:space-between;align-items:flex-start;padding:16px 16px 10px}
.modalTitle{font-weight:700}
.iconBtn{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:18px;line-height:1}
.modalBody{padding:14px 16px 18px;display:grid;place-items:center}
.qr{width:min(320px,78vw);height:auto;border-radius:12px;background:#fff;padding:10px;border:1px solid rgba(15,23,42,.10)}

/* floating bubble */
.bubble{position:fixed;right:18px;bottom:18px;display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:999px;border:1px solid rgba(15,23,42,.14);background:rgba(255,255,255,.68);backdrop-filter:blur(16px);color:var(--fg);cursor:pointer;z-index:55;box-shadow:0 14px 40px rgba(15,23,42,.10)}
.bubble:hover{border-color:rgba(15,23,42,.24)}
.bubbleDot{width:8px;height:8px;border-radius:99px;background:var(--accent);box-shadow:0 0 0 4px rgba(91,124,255,.16)}

@media (max-width:860px){
  .hero{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  h1{font-size:34px}
  .nav{gap:10px}
}