:root{
  --bg:#06101d;
  --bg-soft:#0a1628;
  --panel:rgba(255,255,255,.06);
  --panel-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --text:#eaf2ff;
  --muted:#98adc3;
  --primary:#25d0ff;
  --primary-2:#4f7cff;
  --accent:#7c3aed;
  --success:#18c29c;
  --danger:#ff5f57;
  --warning:#febc2e;
  --shadow:0 20px 60px rgba(0,0,0,.35);
  --radius:18px;
  --max:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  line-height:1.7;
  background:
    radial-gradient(circle at 15% 15%, rgba(37,208,255,.12), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(124,58,237,.12), transparent 26%),
    radial-gradient(circle at 50% 80%, rgba(79,124,255,.10), transparent 30%),
    linear-gradient(180deg,#040b14 0%, #07111f 36%, #0a1525 100%);
  overflow-x:hidden;
}

a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{margin:0;padding-left:18px}
.container{width:min(var(--max),92%);margin:0 auto}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.center{text-align:center}
.hidden{display:none !important}

.bg-grid{
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(circle at center, rgba(0,0,0,.9), transparent 85%);
  -webkit-mask-image:radial-gradient(circle at center, rgba(0,0,0,.9), transparent 85%);
  z-index:0;
}

.glow{
  position:fixed;
  width:520px;height:520px;
  border-radius:50%;
  filter:blur(80px);
  background:radial-gradient(circle, rgba(37,208,255,.12), transparent 60%);
  pointer-events:none;
  z-index:0;
  left:-160px;top:-160px;
}
.glow.g2{
  background:radial-gradient(circle, rgba(124,58,237,.10), transparent 60%);
  right:-180px;top:120px;left:auto;
}

header{
  position:sticky;
  top:0;
  z-index:999;
  background:rgba(4,10,18,.68);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:.25s ease;
}
header.scrolled{
  background:rgba(4,10,18,.88);
  box-shadow:0 10px 30px rgba(0,0,0,.22);
}
.nav{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{
  display:flex;align-items:center;gap:12px;
  font-weight:800;font-size:20px;letter-spacing:.2px;
}
.logo-badge{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 10px 25px rgba(37,208,255,.28);
}
.nav-links{
  display:flex;gap:22px;align-items:center;
  color:#c5d4e4;font-size:15px;
}
.nav-links a{
  position:relative;
  padding:8px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  transition:.25s ease;
}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{display:flex;gap:12px;align-items:center}
.menu-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:#fff;
  font-size:20px;
}

.mobile-nav{
  display:none;
  padding:0 0 16px;
}
.mobile-nav a{
  display:block;
  padding:12px 10px;
  border-top:1px solid rgba(255,255,255,.06);
  color:#d6e5f5;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:148px;
  padding:14px 22px;
  border-radius:14px;
  border:1px solid transparent;
  font-weight:700;
  transition:.25s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  color:#04111b;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 12px 28px rgba(37,208,255,.24);
}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:var(--line);
}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-line{
  color:#bdefff;
  border-color:rgba(37,208,255,.26);
  background:rgba(37,208,255,.06);
}

.tag{
  display:inline-flex;align-items:center;gap:8px;
  border-radius:999px;
  padding:8px 14px;
  font-size:13px;
  letter-spacing:.4px;
  color:#c6f3ff;
  border:1px solid rgba(37,208,255,.22);
  background:rgba(37,208,255,.08);
}
.page-hero{
  position:relative;
  padding:72px 0 36px;
  z-index:1;
}
.page-hero h1{
  margin:18px 0 12px;
  font-size:48px;
  line-height:1.12;
  font-weight:900;
}
.page-hero p{
  margin:0;
  max-width:780px;
  color:var(--muted);
  font-size:16px;
}

.hero{
  position:relative;
  padding:90px 0 56px;
  z-index:1;
}
.hero-wrap{
  display:grid;
  grid-template-columns:1.15fr .9fr;
  gap:32px;
  align-items:center;
}
.hero h1{
  margin:16px 0;
  font-size:60px;
  line-height:1.06;
  font-weight:900;
  letter-spacing:.4px;
}
.gradient-text{
  background:linear-gradient(135deg,#fff, var(--primary));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero p{
  color:var(--muted);
  font-size:17px;
  max-width:760px;
}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:26px;
}
.stat strong{
  display:block;font-size:30px;margin-bottom:6px;
}
.stat span{color:var(--muted);font-size:14px}

.card{
  position:relative;
  z-index:1;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.card.shine::before{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:inherit;
  padding:1px;
  background:linear-gradient(135deg, rgba(37,208,255,.35), rgba(124,58,237,.16), rgba(255,255,255,.08));
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.card-hover{
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.card-hover:hover{
  transform:translateY(-6px);
  border-color:rgba(37,208,255,.22);
  box-shadow:0 24px 70px rgba(0,0,0,.42), 0 0 0 1px rgba(37,208,255,.08) inset;
}

.section-head{margin-bottom:38px}
.section-head h2{
  margin:14px 0 12px;
  font-size:34px;
  line-height:1.2;
  font-weight:800;
}
.section-head p{
  margin:0;
  color:var(--muted);
  max-width:780px;
}
.grid{display:grid;gap:22px}
.features{grid-template-columns:repeat(4,1fr)}
.feature-icon{
  width:54px;height:54px;border-radius:14px;
  display:grid;place-items:center;
  margin-bottom:18px;
  background:linear-gradient(135deg,rgba(37,208,255,.16),rgba(124,58,237,.16));
  border:1px solid rgba(255,255,255,.08);
  font-size:24px;
}
.card h3{margin:0 0 10px;font-size:20px}
.card p{margin:0;color:var(--muted);font-size:15px}

.hero-panel{
  padding:18px;
  border-radius:24px;
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow);
}
.screen{
  border-radius:18px;
  padding:18px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(6,16,29,.96), rgba(10,22,40,.96));
  overflow:hidden;
}
.screen-top{display:flex;gap:8px;margin-bottom:14px}
.dot{width:10px;height:10px;border-radius:50%;background:#2b3d55}
.dot:nth-child(1){background:var(--danger)}
.dot:nth-child(2){background:var(--warning)}
.dot:nth-child(3){background:#28c840}
.dashboard{
  display:grid;grid-template-columns:1.1fr .9fr;gap:14px;
}
.dash-box{
  min-height:120px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  padding:14px;
}
.mini-bars{
  display:flex;align-items:flex-end;gap:10px;
  height:110px;margin-top:10px;
}
.mini-bars span{
  display:block;flex:1;border-radius:8px 8px 0 0;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
  opacity:.9;
}

.kpi-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.kpi strong{
  display:block;
  font-size:34px;
  line-height:1;
  margin-bottom:8px;
}
.kpi small{color:var(--muted)}

.tabs{
  display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px;
}
.tab-btn{
  padding:10px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  color:#d7e7f8;
  background:rgba(255,255,255,.04);
  cursor:pointer;
  transition:.22s ease;
}
.tab-btn.active,.tab-btn:hover{
  color:#06101d;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;
}

.product-grid{grid-template-columns:repeat(3,1fr)}
.product-card{overflow:hidden}
.product-card::after{
  content:"";
  position:absolute;
  width:150px;height:150px;
  right:-46px;top:-46px;border-radius:50%;
  background:radial-gradient(circle, rgba(37,208,255,.16), transparent 60%);
  pointer-events:none;
}
.pill{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  color:#bfefff;
  margin-bottom:14px;
  border:1px solid rgba(37,208,255,.18);
  background:rgba(37,208,255,.08);
}
.product-card ul{margin-top:12px;color:var(--muted)}

.solution-grid{grid-template-columns:repeat(2,1fr)}
.value{
  display:flex;gap:10px;flex-wrap:wrap;margin-top:6px;
}
.value span{
  font-size:13px;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:#d6e3f2;
}

.timeline{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
}
.step{text-align:center;padding:24px 16px}
.step .num{
  width:54px;height:54px;border-radius:50%;
  margin:0 auto 14px;
  display:grid;place-items:center;
  color:#04131e;
  font-weight:900;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 10px 30px rgba(37,208,255,.24);
}
.step p{font-size:14px;color:var(--muted)}

.case-grid{grid-template-columns:repeat(3,1fr)}
.case-card{
  min-height:290px;
  display:flex;flex-direction:column;justify-content:space-between;
}
.case-meta{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;
}
.case-meta span{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  color:#d6e5f5;
}

.about-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.about-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
.about-item{
  padding:18px;border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contact-list{display:grid;gap:14px;margin-top:20px}
.contact-item{
  padding:16px 18px;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
form{display:grid;gap:14px}
input,textarea,select{
  width:100%;
  padding:14px 16px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:#fff;
  outline:none;
}
textarea{min-height:130px;resize:vertical}
input::placeholder,textarea::placeholder{color:#8ea5bc}
select option{color:#111}

.cta{
  overflow:hidden;
}
.cta::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(37,208,255,.16), transparent 25%),
    radial-gradient(circle at 80% 70%, rgba(124,58,237,.12), transparent 25%);
  pointer-events:none;
}

footer{
  padding:30px 0 60px;
  color:#8ea4ba;
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-wrap{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;
}

.reveal{
  opacity:0;
  transform:translateY(24px);
}
.reveal.visible{
  opacity:1;
  transform:translateY(0);
  transition:all .65s cubic-bezier(.2,.65,.2,1);
}

@media (max-width:1100px){
  .features{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(3,1fr)}
  .kpi-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .menu-toggle{display:inline-grid;place-items:center}
  .hero-wrap,.about-wrap,.contact-grid,.solution-grid{grid-template-columns:1fr}
  .hero h1{font-size:40px}
  .page-hero h1{font-size:38px}
  .stats{grid-template-columns:1fr}
}
@media (max-width:640px){
  .features,.product-grid,.case-grid,.about-list,.timeline,.kpi-row{grid-template-columns:1fr}
  .section{padding:70px 0}
  .hero{padding:72px 0 40px}
  .hero h1{font-size:34px}
  .page-hero h1{font-size:32px}
  .dashboard{grid-template-columns:1fr}
  .btns{flex-direction:column}
  .btn{width:100%}
}


/* =========================
   Footer Upgrade
========================= */
.footer{
  position:relative;
  z-index:1;
  margin-top:10px;
}
.footer-top{
  padding:60px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr 1fr 1fr 1fr;
  gap:26px;
  align-items:start;
}
.footer-brand p{
  color:var(--muted);
  margin:14px 0 18px;
}
.footer-title{
  font-size:18px;
  font-weight:800;
  margin:0 0 14px;
  color:#eef6ff;
}
.footer-links{
  display:grid;
  gap:10px;
}
.footer-links a{
  color:var(--muted);
  transition:.2s ease;
}
.footer-links a:hover{
  color:#fff;
  transform:translateX(3px);
}
.footer-contact{
  display:grid;
  gap:10px;
}
.footer-contact div{
  color:var(--muted);
}
.footer-qrcodes{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.qr-box{
  width:120px;
  text-align:center;
}
.qr-img{
  width:120px;
  height:120px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.1);
  background:
    linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  display:flex;
  align-items:center;
  justify-content:center;
  color:#b7cce1;
  font-size:12px;
  overflow:hidden;
}
.qr-box span{
  display:block;
  margin-top:10px;
  color:var(--muted);
  font-size:13px;
}
.footer-bottom{
  padding:18px 0 34px;
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-bottom-wrap{
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  align-items:center;
}
.footer-copy{
  color:#8ea4ba;
  font-size:14px;
}
.footer-record{
  color:#8ea4ba;
  font-size:14px;
}
.footer-record a:hover{
  color:#fff;
}

/* =========================
   Back To Top
========================= */
.backtop{
  position:fixed;
  right:24px;
  bottom:24px;
  width:52px;
  height:52px;
  border:none;
  border-radius:16px;
  cursor:pointer;
  z-index:1001;
  display:none;
  color:#04111b;
  font-size:20px;
  font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 14px 35px rgba(37,208,255,.28);
  transition:.25s ease;
}
.backtop:hover{
  transform:translateY(-4px);
  box-shadow:0 18px 42px rgba(37,208,255,.35);
}

@media (max-width: 1100px){
  .footer-grid{
    grid-template-columns:repeat(2,1fr);
  }
}
@media (max-width: 640px){
  .footer-grid{
    grid-template-columns:1fr;
  }
  .footer-qrcodes{
    justify-content:flex-start;
  }
  .qr-box,
  .qr-img{
    width:108px;
    height:108px;
  }
  .footer-bottom-wrap{
    flex-direction:column;
    align-items:flex-start;
  }
  .backtop{
    right:16px;
    bottom:16px;
    width:48px;
    height:48px;
    border-radius:14px;
  }
}