:root{
  --bg:#06101f;
  --bg-deep:#020815;
  --surface:#0b172c;
  --surface-2:#111f38;
  --text:#eef5ff;
  --muted:#9fb0d2;
  --soft:#c9d8f4;
  --line:rgba(124,169,255,.16);
  --line-strong:rgba(64,155,255,.36);
  --blue:#168cff;
  --blue-2:#24c7ff;
  --green:#24d982;
  --purple:#955dff;
  --orange:#ff9f16;
  --cyan:#1fd4e6;
  --shadow-soft:18px 18px 48px rgba(0,0,0,.28),-10px -10px 30px rgba(72,126,202,.06);
  --shadow-hover:24px 28px 70px rgba(0,0,0,.42),0 0 34px rgba(22,140,255,.18);
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  min-width:320px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 70% 12%,rgba(19,104,255,.2),transparent 30%),
    linear-gradient(180deg,#071529 0%,#020815 50%,#06101f 100%);
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(rgba(42,111,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(42,111,255,.07) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 68%);
}

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

.container{
  width:min(1160px,calc(100% - 40px));
  margin:0 auto;
}

.site-nav{
  position:sticky;
  top:0;
  z-index:10;
  background:rgba(4,13,27,.78);
  border-bottom:1px solid rgba(124,169,255,.12);
  backdrop-filter:blur(16px);
}

.nav-inner{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  white-space:nowrap;
}

.brand img{
  width:34px;
  height:34px;
  object-fit:contain;
}

.menu{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:30px;
  flex:1;
}

.menu a{
  position:relative;
  color:#d7e4fb;
  font-size:14px;
  line-height:78px;
}

.menu a.active,
.menu a:hover{color:#fff}

.menu a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:26px;
  height:2px;
  background:var(--blue);
  transform:translateX(-50%);
}

.nav-login{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:96px;
  height:36px;
  padding:0 16px;
  border-radius:8px;
  color:#fff;
  font-size:13px;
  font-weight:700;
  background:linear-gradient(135deg,#1094ff,#2f83ff);
  box-shadow:0 0 22px rgba(22,140,255,.36);
}

.hero{
  position:relative;
  overflow:hidden;
  min-height:520px;
  padding:76px 0 68px;
  border-bottom:1px solid rgba(124,169,255,.12);
}

.hero::after{
  content:"";
  position:absolute;
  right:-12%;
  top:8%;
  width:760px;
  height:420px;
  background:radial-gradient(circle,rgba(23,141,255,.22),transparent 68%);
  pointer-events:none;
}

.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);
  align-items:center;
  gap:44px;
}

.eyebrow{
  margin:0 0 12px;
  color:#57b8ff;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.hero-copy h1{
  margin:0;
  font-size:52px;
  line-height:1.25;
  letter-spacing:0;
}

.hero-copy h1 span{color:#2b95ff}

.hero-desc{
  max-width:500px;
  margin:24px 0 0;
  color:#d3def0;
  font-size:17px;
  line-height:1.8;
}

.hero-actions{
  display:flex;
  align-items:center;
  gap:20px;
  margin-top:30px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:128px;
  height:42px;
  border-radius:22px;
  font-size:14px;
  font-weight:800;
}

.btn-primary{
  background:linear-gradient(135deg,#1397ff,#2c82ff);
  box-shadow:0 0 28px rgba(22,140,255,.45);
}

.btn-outline{
  color:#dce8ff;
  border:1px solid rgba(180,207,255,.28);
  background:rgba(255,255,255,.03);
}

.trust-list{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:42px;
  color:#d9e6f8;
  font-size:14px;
}

.trust-list span{
  display:inline-flex;
  align-items:center;
  gap:9px;
}

.trust-list img{width:18px;height:18px}

.hero-visual{
  position:relative;
  height:360px;
}

.orbit{
  position:absolute;
  left:50%;
  top:52%;
  border:1px solid rgba(24,141,255,.55);
  border-radius:50%;
  transform:translate(-50%,-50%) rotate(-10deg);
  box-shadow:0 0 22px rgba(24,141,255,.18);
}

.orbit-one{width:440px;height:190px}
.orbit-two{width:520px;height:240px;opacity:.48}

.hero-stage{
  position:absolute;
  left:50%;
  top:54%;
  width:270px;
  height:220px;
  transform:translate(-50%,-50%);
}

.stage-top,
.stage-mid,
.stage-base{
  position:absolute;
  left:50%;
  transform:translateX(-50%) rotateX(56deg) rotateZ(-45deg);
  border-radius:26px;
  background:linear-gradient(135deg,#1a65ff,#22d7ff);
  box-shadow:0 0 22px rgba(22,140,255,.72),0 24px 50px rgba(0,0,0,.42);
}

.stage-top{
  top:0;
  width:138px;
  height:138px;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:3;
}

.stage-top img{
  width:88px;
  height:88px;
  transform:rotateZ(45deg) rotateX(-56deg);
  filter:drop-shadow(0 0 14px rgba(94,241,255,.6));
}

.stage-mid{
  top:112px;
  width:230px;
  height:112px;
  z-index:2;
  opacity:.9;
}

.stage-base{
  top:156px;
  width:292px;
  height:116px;
  z-index:1;
  background:linear-gradient(135deg,#1042a7,#168cff 44%,#24d7ff);
}

.hero-badge{
  position:absolute;
  z-index:4;
  width:58px;
  height:58px;
  animation:float 4s ease-in-out infinite;
}

.hero-badge img{width:100%;height:100%}
.hb-cloud{left:68px;top:110px}
.hb-chat{right:82px;top:68px;animation-delay:.8s}
.hb-user{right:28px;bottom:78px;animation-delay:1.4s}
.hb-menu{left:132px;bottom:52px;animation-delay:2s}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

.section{padding:58px 0}

.section-products{
  background:linear-gradient(180deg,rgba(3,10,24,.18),rgba(6,16,31,.82));
}

.section-head{
  max-width:720px;
  margin:0 auto 30px;
  text-align:center;
}

.section-head.align-left{
  margin:0;
  text-align:left;
}

.section-head h2{
  margin:0;
  font-size:28px;
}

.section-head p:not(.eyebrow){
  margin:12px 0 0;
  color:#b8c7df;
  font-size:14px;
  line-height:1.8;
}

/* Card layout system */
.wk-card{
  background:linear-gradient(145deg,rgba(18,34,62,.9),rgba(8,18,35,.92));
  border:1px solid rgba(255,255,255,.06);
  box-shadow:var(--shadow-soft),inset 1px 1px 0 rgba(255,255,255,.05),inset -1px -1px 0 rgba(0,0,0,.18);
}

.wk-card-hover{
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}

.wk-card-hover:hover{
  transform:translateY(-6px) scale(1.02);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}

.wk-card-gradient{
  background:
    linear-gradient(145deg,rgba(20,112,255,.3),rgba(18,34,62,.88) 46%,rgba(8,18,35,.95)),
    radial-gradient(circle at 20% 0%,rgba(36,199,255,.35),transparent 34%);
}

.wk-card-border{
  border:1px solid var(--line-strong);
}

.wk-radius-sm{border-radius:8px}
.wk-radius-md{border-radius:12px}
.wk-radius-lg{border-radius:18px}
.wk-pad-compact{padding:14px}
.wk-pad-normal{padding:22px}
.wk-pad-comfortable{padding:28px}

.theme-dark .wk-card{
  color:var(--text);
  background-color:rgba(13,26,49,.9);
}

.product-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
}

.product-card{
  min-height:328px;
  display:flex;
  flex-direction:column;
}

.product-card.featured{
  grid-column:span 2;
}

.product-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}

.product-icon{
  width:66px;
  height:66px;
}

.product-tag{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:0 10px;
  border-radius:999px;
  color:#9dd5ff;
  font-size:12px;
  font-weight:800;
  background:rgba(22,140,255,.12);
  border:1px solid rgba(22,140,255,.28);
}

.product-tag.green{color:#8ff0bd;background:rgba(36,217,130,.12);border-color:rgba(36,217,130,.28)}
.product-tag.purple{color:#c4a8ff;background:rgba(149,93,255,.12);border-color:rgba(149,93,255,.28)}
.product-tag.orange{color:#ffd092;background:rgba(255,159,22,.12);border-color:rgba(255,159,22,.28)}
.product-tag.cyan{color:#8df3ff;background:rgba(31,212,230,.12);border-color:rgba(31,212,230,.28)}

.product-card h3{
  margin:0;
  font-size:18px;
}

.product-card p{
  flex:1;
  margin:16px 0 22px;
  color:#bdc9dd;
  font-size:13px;
  line-height:1.75;
}

.card-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  width:132px;
  height:36px;
  border-radius:18px;
  color:#fff;
  font-size:13px;
  font-weight:800;
}

.card-btn span{font-size:20px;line-height:1}
.card-btn.blue{background:linear-gradient(135deg,#1397ff,#2c82ff)}
.card-btn.green{background:linear-gradient(135deg,#20dc85,#18be73)}
.card-btn.purple{background:linear-gradient(135deg,#9b5dff,#7b4cff)}
.card-btn.orange{background:linear-gradient(135deg,#ffae26,#ff8b08)}
.card-btn.cyan{background:linear-gradient(135deg,#28dbe8,#17bde3)}

.section-cloud{
  padding-top:34px;
}

.cloud-layout{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:28px;
  align-items:start;
}

.feature-grid{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.feature-grid span{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:0 14px;
  border-radius:999px;
  color:#dce9ff;
  font-size:13px;
  background:rgba(18,38,70,.86);
  border:1px solid rgba(124,169,255,.18);
  box-shadow:inset 1px 1px 0 rgba(255,255,255,.04);
}

.stats-wrap{padding:0 0 56px}

.stats-panel{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
}

.stat-item{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:18px;
  min-height:82px;
  border-right:1px solid rgba(124,169,255,.12);
}

.stat-item:last-child{border-right:0}
.stat-item img{width:54px;height:54px}

.stat-item strong{
  display:block;
  color:#f4f8ff;
  font-size:28px;
  line-height:1;
}

.stat-item span{
  display:block;
  margin-top:10px;
  color:#d6e2f7;
  font-size:13px;
  font-weight:700;
}

.faq-section{
  background:linear-gradient(180deg,rgba(6,16,31,.35),rgba(3,10,24,.55));
}

.faq-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}

.faq-card h3{
  margin:0 0 12px;
  font-size:16px;
  line-height:1.45;
}

.faq-card p{
  margin:12px 0 0;
  color:#bdc9dd;
  font-size:13px;
  line-height:1.7;
}

.contact-section{
  background:linear-gradient(180deg,rgba(3,10,24,.28),rgba(6,16,31,.72));
}

.contact-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}

.contact-card{
  text-align:center;
}

.contact-card img{
  width:42px;
  height:42px;
  margin-bottom:16px;
}

.contact-card h3{
  margin:0;
  font-size:16px;
}

.contact-card p{
  margin:12px 0 0;
  color:#bdc9dd;
  font-size:14px;
  line-height:1.7;
}

.site-footer{
  padding:8px 0 24px;
  background:#06101f;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.7fr .75fr .75fr .75fr 1.2fr;
  gap:40px;
  padding:0 8px 42px;
}

.footer-logo{margin-bottom:14px}

.footer-brand p,
.follow-box p{
  margin:0;
  color:#b7c5dd;
  font-size:13px;
  line-height:1.8;
}

.footer-col h4,
.follow-box h4{
  margin:0 0 14px;
  color:#fff;
  font-size:15px;
}

.footer-col a{
  display:block;
  margin-top:10px;
  color:#b7c5dd;
  font-size:13px;
}

.follow-box{
  display:flex;
  align-items:flex-start;
  gap:18px;
}

.qr{
  flex:0 0 auto;
  width:74px;
  height:74px;
  padding:8px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:4px;
  background:#fff;
}

.qr span{background:#13203a}
.qr span:nth-child(2),
.qr span:nth-child(7),
.qr span:nth-child(9),
.qr span:nth-child(12){background:transparent}

.copyright{
  min-height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:#aab8d1;
  font-size:13px;
  text-align:center;
  background:rgba(20,37,66,.42);
}

@media (max-width:1100px){
  .menu{gap:18px}
  .product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .product-card.featured{grid-column:span 1}
}

@media (max-width:980px){
  .menu{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{height:330px}
  .cloud-layout{grid-template-columns:1fr}
  .product-grid,
  .faq-grid,
  .contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-panel{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:22px}
  .stat-item:nth-child(2){border-right:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:640px){
  .container{width:min(100% - 28px,1160px)}
  .nav-inner{min-height:66px}
  .brand{font-size:18px}
  .nav-login{min-width:86px;padding:0 12px}
  .hero{padding:52px 0 36px}
  .hero-copy h1{font-size:38px}
  .hero-desc{font-size:15px}
  .hero-actions{gap:12px}
  .btn{min-width:112px}
  .trust-list{gap:18px;margin-top:30px}
  .hero-visual{height:270px}
  .orbit-one{width:310px;height:140px}
  .orbit-two{width:360px;height:172px}
  .hero-stage{transform:translate(-50%,-50%) scale(.76)}
  .hero-badge{width:46px;height:46px}
  .hb-cloud{left:20px;top:88px}
  .hb-chat{right:30px;top:48px}
  .hb-user{right:10px;bottom:64px}
  .hb-menu{left:58px;bottom:48px}
  .section{padding:42px 0}
  .product-grid,
  .faq-grid,
  .contact-grid,
  .stats-panel,
  .footer-grid{grid-template-columns:1fr}
  .product-card{min-height:auto}
  .stat-item{
    justify-content:flex-start;
    border-right:0;
    border-bottom:1px solid rgba(124,169,255,.12);
    padding-bottom:18px;
  }
  .stat-item:last-child{
    border-bottom:0;
    padding-bottom:0;
  }
}