:root{
  --bg:#070A12;
  --bg2:#0B1020;
  --card:rgba(255,255,255,.06);
  --card2:rgba(255,255,255,.08);
  --border:rgba(255,255,255,.12);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --muted2:rgba(255,255,255,.52);
  --brand:#6DE3FF;
  --brand2:#8B5CFF;
  --ok:#38D996;
  --warn:#FFB020;
  --danger:#FF5C7A;
  --shadow:0 24px 80px rgba(0,0,0,.45);
  --radius:18px;
  --radius2:26px;
  --max:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,"Noto Sans CJK SC",sans-serif;
  color:var(--text);
  background:
    radial-gradient(1000px 600px at 18% -10%, rgba(109,227,255,.22), transparent 60%),
    radial-gradient(900px 600px at 80% 10%, rgba(139,92,255,.22), transparent 60%),
    radial-gradient(600px 500px at 20% 75%, rgba(56,217,150,.10), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a{color:inherit;text-decoration:none}
button{font:inherit}

.container{max-width:var(--max);margin:0 auto;padding:0 22px}

.topbar{
  position:sticky;top:0;z-index:60;
  backdrop-filter:saturate(160%) blur(10px);
  background:rgba(7,10,18,.65);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:70px;
}

.brand{
  display:flex;align-items:center;gap:12px;
  font-weight:700;letter-spacing:.2px;
}
.logo{
  width:34px;height:34px;border-radius:12px;
  background:
    radial-gradient(12px 12px at 28% 30%, rgba(255,255,255,.9), rgba(255,255,255,0) 60%),
    linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow:0 10px 30px rgba(109,227,255,.16);
}
.brand span{display:inline-flex;flex-direction:column;line-height:1.1}
.brand small{color:var(--muted2);font-weight:600;font-size:12px;margin-top:2px}

.nav{
  display:flex;align-items:center;gap:18px;
}
.nav a{
  color:var(--muted);font-weight:650;font-size:14px;
  padding:10px 10px;border-radius:12px;
}
.nav a:hover{background:rgba(255,255,255,.06);color:var(--text)}

.actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:10px;
  padding:10px 14px;border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-weight:700;font-size:14px;
}
.btn:hover{background:rgba(255,255,255,.06)}
.btn-primary{
  border-color:rgba(109,227,255,.35);
  background:linear-gradient(135deg, rgba(109,227,255,.16), rgba(139,92,255,.14));
}
.btn-primary:hover{border-color:rgba(109,227,255,.55)}
.btn-ghost{background:transparent}

.hamburger{
  display:none;
  width:42px;height:42px;border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--text);
}
.hamburger:hover{background:rgba(255,255,255,.06)}

.mobile-panel{
  display:none;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(7,10,18,.8);
}
.mobile-panel-inner{padding:14px 22px 18px}
.mobile-links{display:flex;flex-direction:column;gap:6px}
.mobile-links a{padding:12px 10px;border-radius:14px;color:var(--muted);font-weight:700}
.mobile-links a:hover{background:rgba(255,255,255,.06);color:var(--text)}
.mobile-actions{display:flex;gap:10px;margin-top:12px}

.hero{
  padding:72px 0 22px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:28px;
  align-items:start;
}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-weight:700;font-size:13px;
}
.badge i{
  width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  box-shadow:0 0 0 4px rgba(109,227,255,.10);
}
.h1{
  margin:18px 0 12px;
  font-size:44px;line-height:1.12;letter-spacing:-.6px;
}
.h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.sub{
  margin:0;
  color:var(--muted);
  font-size:16px;line-height:1.7;
  max-width:54ch;
}
.hero-cta{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.metrics{
  margin-top:22px;
  display:flex;gap:18px;flex-wrap:wrap;
}
.metric{
  padding:10px 12px;border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-weight:700;font-size:13px;
}

.panel{
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius2);
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow:var(--shadow);
  overflow:hidden;
}
.panel-top{
  padding:14px 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;
}
.panel-top strong{font-size:14px}
.dots{display:flex;gap:6px}
.dots span{
  width:10px;height:10px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.panel-body{padding:16px}
.kpi-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}
.kpi{
  padding:14px 14px;border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
}
.kpi label{display:block;color:var(--muted2);font-weight:800;font-size:12px}
.kpi b{display:block;margin-top:8px;font-size:20px;letter-spacing:.2px}
.kpi small{display:block;margin-top:6px;color:var(--muted);font-weight:700}
.kpi .tag{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:10px;
  color:rgba(255,255,255,.78);
  font-weight:800;font-size:12px;
}
.tag i{width:8px;height:8px;border-radius:50%}
.tag .ok{background:rgba(56,217,150,.95)}
.tag .warn{background:rgba(255,176,32,.95)}
.tag .danger{background:rgba(255,92,122,.95)}

.section{padding:56px 0}
.section h2{
  margin:0 0 12px;
  font-size:26px;letter-spacing:-.2px;
}
.section p.lead{margin:0;color:var(--muted);line-height:1.8;max-width:78ch}

.grid{
  display:grid;gap:14px;margin-top:18px;
}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
  padding:16px;border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
}
.card:hover{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.16)}
.card h3{margin:2px 0 8px;font-size:16px}
.card p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  color:var(--muted2);
  font-weight:800;font-size:12px;
}
.pill i{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2))}

.steps{margin-top:18px}
.step{
  display:grid;
  grid-template-columns:36px 1fr;
  gap:12px;
  padding:14px 14px;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
}
.step + .step{margin-top:10px}
.num{
  width:36px;height:36px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;
  background:linear-gradient(135deg, rgba(109,227,255,.18), rgba(139,92,255,.16));
  border:1px solid rgba(109,227,255,.26);
}
.step b{display:block}
.step span{display:block;margin-top:6px;color:var(--muted);line-height:1.7;font-size:14px}

.faq{margin-top:18px}
details{
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  padding:14px 14px;
}
details + details{margin-top:10px}
summary{
  cursor:pointer;
  font-weight:850;
  color:rgba(255,255,255,.9);
}
details p{margin:10px 0 0;color:var(--muted);line-height:1.8;font-size:14px}

.footer{
  padding:26px 0 40px;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(7,10,18,.3);
}
.footer-grid{
  display:grid;gap:12px;
  grid-template-columns:1.2fr .8fr;
  align-items:start;
}
.footer small{color:var(--muted2);line-height:1.8}
.footer-links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.footer-links a{color:var(--muted);font-weight:750;padding:8px 10px;border-radius:12px}
.footer-links a:hover{background:rgba(255,255,255,.06);color:var(--text)}

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:18px}
  .h1{font-size:38px}
  .grid.cols-3{grid-template-columns:1fr 1fr}
}

@media (max-width:720px){
  .nav,.actions{display:none}
  .hamburger{display:inline-flex;align-items:center;justify-content:center}
  .mobile-panel[data-open="true"]{display:block}
  .grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
}