:root{
  --bg:#050b14;--bg2:#081421;--line:rgba(164,211,255,.16);
  --text:#f3f7fb;--muted:#92a7bb;--blue:#25b8ff;--blue2:#6fdcff;--silver:#dfe8f0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:radial-gradient(circle at 68% 15%,rgba(26,127,205,.14),transparent 32%),
  linear-gradient(180deg,var(--bg),#040811 55%,#06101a);
  color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif
}
a{color:inherit;text-decoration:none}
button{font:inherit}
.site-header{
  position:fixed;z-index:20;top:0;left:0;right:0;height:82px;padding:0 4.5vw;
  display:flex;align-items:center;gap:36px;background:rgba(5,11,20,.72);
  backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06)
}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand img{width:52px;height:52px;object-fit:cover;border-radius:12px}
.brand-copy{display:flex;flex-direction:column;line-height:1}
.brand-copy strong{font-size:19px;letter-spacing:4px}
.brand-copy span{font-size:9px;letter-spacing:3px;color:#8ea2b7;margin-top:7px}
nav{display:flex;gap:28px;font-size:14px;color:#afbdca}
nav a:hover{color:white}
.nav-cta{border:1px solid rgba(111,220,255,.35);padding:11px 18px;border-radius:999px;color:#dff7ff;background:rgba(37,184,255,.08)}
.hero{min-height:100vh;padding:140px 7vw 80px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;position:relative;overflow:hidden}
.hero-glow{position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(41,170,255,.22),transparent 68%);right:2%;top:10%;filter:blur(20px)}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:5px;color:#74cfff}
.hero h1{font-size:clamp(54px,6.6vw,108px);line-height:.98;margin:26px 0 28px;letter-spacing:-4px}
.hero h1 span{background:linear-gradient(90deg,#f8fbff,#9ddfff 48%,#4abdf9);-webkit-background-clip:text;color:transparent}
.hero-intro{font-size:20px;line-height:1.9;color:#aec0d0}
.hero-actions{display:flex;gap:14px;margin-top:36px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 24px;border-radius:999px;font-size:15px;border:0;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,#eaf7ff,#58caff);color:#04101b;font-weight:700}
.btn.ghost{border:1px solid rgba(255,255,255,.18);color:#d9e5ee;background:transparent}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:13px;margin-top:42px;color:#7f95a8;font-size:13px}
.hero-tags i{width:3px;height:3px;background:#4ec8ff;border-radius:50%}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.hero-visual img{width:min(640px,48vw);aspect-ratio:1/1;object-fit:cover;border-radius:36px;box-shadow:0 50px 100px rgba(0,0,0,.45);mask-image:linear-gradient(to bottom,#000 78%,transparent 100%)}
.orbit{position:absolute;border:1px solid rgba(76,199,255,.25);border-radius:50%;transform:rotate(-18deg)}
.orbit-a{width:72%;height:28%}.orbit-b{width:56%;height:20%;transform:rotate(18deg)}
.section{padding:120px 7vw}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-top:24px}
.section h2{font-size:clamp(42px,5vw,78px);line-height:1.08;margin:22px 0 0;letter-spacing:-3px}
.about-text{padding-top:20px;color:#a8bac9;font-size:18px;line-height:2}
.section-head{display:grid;grid-template-columns:1fr 440px;align-items:end;gap:60px;margin-bottom:65px}
.section-head p{color:#92a7bb;line-height:1.9;margin:0}

.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.product-card{position:relative;padding:32px;min-height:270px;border:1px solid var(--line);border-radius:26px;background:linear-gradient(145deg,rgba(14,29,45,.86),rgba(5,10,18,.78));transition:.3s}
.product-card:hover,.product-card.selected{transform:translateY(-4px);border-color:rgba(91,205,255,.55);box-shadow:0 24px 50px rgba(0,0,0,.25),inset 0 0 40px rgba(52,165,235,.06)}
.product-no{font-size:11px;letter-spacing:3px;color:#58cfff}
.product-card h3{font-size:26px;margin:48px 0 14px}
.product-card p{color:#91a6b8;line-height:1.8;min-height:58px}
.select-product{margin-top:18px;background:transparent;border:1px solid rgba(255,255,255,.16);color:#bdd0df;border-radius:999px;padding:10px 15px;cursor:pointer}
.product-card.selected .select-product{background:#dff6ff;color:#05111b;border-color:transparent;font-weight:700}
.product-summary{margin-top:24px;padding:22px 28px;border:1px solid var(--line);border-radius:22px;display:flex;align-items:center;justify-content:space-between;background:rgba(12,26,41,.55)}
.product-summary div{display:flex;flex-direction:column;gap:7px}
.product-summary span{font-size:12px;color:#6f8ba1;letter-spacing:2px}
.product-summary strong{font-size:22px}

.service-flow{border-top:1px solid var(--line)}
.service-flow article{display:grid;grid-template-columns:90px 1fr 1.4fr;gap:35px;align-items:center;padding:34px 0;border-bottom:1px solid var(--line);transition:.3s}
.service-flow article:hover{padding-left:18px;background:linear-gradient(90deg,rgba(37,184,255,.06),transparent)}
.service-flow .num{font-size:13px;color:#48c7ff;letter-spacing:2px}
.service-flow h3{font-size:26px;margin:0}
.service-flow p{color:#91a5b7;line-height:1.8;margin:0}
.solution-marquee{display:flex;gap:18px;overflow:hidden;white-space:nowrap;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.solution-marquee span{font-size:32px;color:#b9c7d3;padding-right:24px}

.contact{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px;border-top:1px solid var(--line)}
.contact-intro{color:#91a6b8;line-height:1.9;max-width:520px;margin-top:28px}
.contact-options{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.contact-card{padding:34px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(160deg,rgba(14,31,48,.86),rgba(5,10,18,.7))}
.contact-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:rgba(76,194,255,.1);border:1px solid rgba(96,208,255,.25);font-size:26px;color:#7ed9ff}
.contact-type{display:block;margin-top:26px;font-size:10px;letter-spacing:3px;color:#5ccaff}
.contact-card h3{font-size:28px;margin:12px 0}
.contact-card p{color:#91a6b8;line-height:1.8;min-height:90px}
.contact-card small{display:block;margin-top:16px;color:#5f768a;line-height:1.6}

.service-modal{position:fixed;inset:0;z-index:50;display:none;place-items:center;background:rgba(1,5,10,.72);backdrop-filter:blur(18px)}
.service-modal.show{display:grid}
.service-dialog{position:relative;width:min(560px,90vw);padding:40px;border-radius:30px;border:1px solid rgba(104,213,255,.28);background:linear-gradient(160deg,#0b1c2d,#050b14);box-shadow:0 40px 120px rgba(0,0,0,.6)}
.service-dialog h2{font-size:42px;margin:14px 0}
.service-dialog p{color:#9fb3c5}
.close-modal{position:absolute;right:20px;top:16px;border:0;background:transparent;color:#9bb1c4;font-size:30px;cursor:pointer}
.service-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0}
.service-choices button{padding:14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:#dbe8f1;cursor:pointer}
.service-choices button:hover{border-color:#58cfff;background:rgba(63,186,255,.08)}
.service-note{padding:16px;border-radius:14px;background:rgba(78,194,255,.06);color:#7f98ac;line-height:1.7;font-size:13px}

footer{padding:40px 7vw 55px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:30px;color:#74899a;font-size:12px}
footer div{display:flex;flex-direction:column;gap:8px}
footer strong{font-size:15px;color:#c5d1da;letter-spacing:1px}
footer span{font-size:10px;letter-spacing:1px}
@media(max-width:1000px){
  nav{display:none}.hero{grid-template-columns:1fr;padding-top:130px}.hero-visual{margin-top:40px}.hero-visual img{width:90vw}
  .about-grid,.section-head,.contact{grid-template-columns:1fr}.product-grid{grid-template-columns:1fr 1fr}
  .service-flow article{grid-template-columns:55px 1fr}.service-flow article p{grid-column:2}.contact-options{grid-template-columns:1fr}
}
@media(max-width:640px){
  .product-grid{grid-template-columns:1fr}.product-summary{align-items:flex-start;gap:18px;flex-direction:column}
  footer{flex-direction:column}.site-header{padding:0 18px}.nav-cta{display:none}
}

.detail-link{display:block;margin-top:14px;font-size:13px;color:#64ceff;letter-spacing:.5px}
.detail-link:hover{color:#dff8ff}