:root{
  --bg:#07111f;
  --bg2:#0b1727;
  --panel:#0e1d30;
  --line:rgba(119,187,255,.13);
  --text:#e9f3ff;
  --muted:#8da2b8;
  --cyan:#5fe5ff;
  --blue:#5c8cff;
  --green:#8df7bd;
  --paper:#eef4f7;
  --ink:#11202d;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
}
a{text-decoration:none;color:inherit}
button{font:inherit}
.scroll-progress{
  position:fixed;z-index:100;left:0;top:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--blue));
  box-shadow:0 0 12px rgba(95,229,255,.7)
}
.header{
  height:76px;padding:0 4vw;
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(7,17,31,.88);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px}
.brand-symbol{
  width:44px;height:44px;display:flex;align-items:end;justify-content:center;gap:3px;
  padding:10px;border:1px solid rgba(95,229,255,.24);background:rgba(95,229,255,.05)
}
.brand-symbol i{display:block;width:5px;background:var(--cyan)}
.brand-symbol i:nth-child(1){height:11px}.brand-symbol i:nth-child(2){height:20px}.brand-symbol i:nth-child(3){height:15px}
.brand-copy strong{display:block;font-size:16px;letter-spacing:1px}
.brand-copy small{display:block;font-size:8px;letter-spacing:1.8px;color:#65809b;margin-top:3px}
.nav{display:flex;gap:28px;font-size:12px;color:#a8bbcf}
.nav a:hover{color:var(--cyan)}
.menu-btn{display:none;background:none;border:0}
.menu-btn span{display:block;width:24px;height:2px;background:#fff;margin:5px 0}
.hero{min-height:calc(100vh - 76px);position:relative;overflow:hidden}
.hero-grid{
  min-height:calc(100vh - 126px);
  padding:6vh 5vw 4vh;
  display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;
}
.eyebrow,.network-head span,.scene-intro span,.principles-head span,.signal-copy span,.contact-heading>span{
  font-size:9px;letter-spacing:2.4px;color:#6f91ad;font-weight:700
}
.hero h1{font-size:clamp(52px,6vw,96px);line-height:1.04;letter-spacing:-4px;margin:18px 0 28px}
.hero h1 span{color:var(--cyan)}
.hero-copy>p{font-size:14px;line-height:1.9;color:#90a5ba;max-width:650px}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:32px}
.btn-main{
  padding:13px 20px;border:1px solid rgba(95,229,255,.36);
  background:rgba(95,229,255,.08);color:var(--cyan);
  font-size:12px;font-weight:700
}
.btn-link{font-size:12px;color:#b7c9d9}.btn-link b{margin-left:6px;color:var(--cyan)}
.signal-list{
  margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line)
}
.signal-list div{padding:16px 14px 0 0}
.signal-list small{display:block;font-size:8px;letter-spacing:1.5px;color:#597894}
.signal-list strong{display:block;margin-top:6px;font-size:11px;color:#d8e5f2}
.data-visual{
  aspect-ratio:1/1;max-width:640px;width:100%;justify-self:center;
  position:relative;border:1px solid rgba(95,229,255,.13);overflow:hidden;
  background:radial-gradient(circle at center,rgba(92,140,255,.12),transparent 40%),#091524
}
.data-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(95,229,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(95,229,255,.05) 1px,transparent 1px);
  background-size:42px 42px
}
.radar{position:absolute;border:1px solid rgba(95,229,255,.13);border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%)}
.radar-1{width:72%;height:72%}.radar-2{width:50%;height:50%}.radar-3{width:28%;height:28%}
.center-core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:150px;height:150px;border-radius:50%;
  background:rgba(7,17,31,.92);border:1px solid rgba(95,229,255,.4);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  box-shadow:0 0 50px rgba(95,229,255,.12)
}
.center-core small{font-size:8px;letter-spacing:2px;color:#557792}
.center-core strong{font-size:27px;margin:5px 0;color:#fff}
.center-core span{font-size:7px;letter-spacing:1.2px;color:var(--cyan)}
.data-node{
  position:absolute;width:74px;height:74px;border:1px solid rgba(95,229,255,.2);
  background:#0b1828;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px
}
.data-node i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 12px rgba(141,247,189,.8)}
.data-node span{font-size:8px;letter-spacing:1.5px;color:#9db4c8}
.node-a{left:10%;top:16%}.node-b{right:8%;top:23%}.node-c{left:16%;bottom:12%}.node-d{right:13%;bottom:13%}
.pulse-line{position:absolute;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.4;transform-origin:left center}
.line-a{width:29%;left:23%;top:27%;transform:rotate(28deg)}
.line-b{width:28%;left:51%;top:37%;transform:rotate(-22deg)}
.line-c{width:28%;left:25%;top:67%;transform:rotate(-30deg)}
.line-d{width:27%;left:51%;top:63%;transform:rotate(28deg)}
.scan{position:absolute;background:linear-gradient(90deg,transparent,rgba(95,229,255,.04),transparent);pointer-events:none}
.scan-a{left:-30%;top:15%;width:80%;height:280px;transform:rotate(18deg)}
.scan-b{right:-30%;bottom:10%;width:70%;height:240px;transform:rotate(-16deg)}
.ticker{height:50px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.ticker-track{height:100%;display:flex;align-items:center;gap:20px;white-space:nowrap;animation:ticker 22s linear infinite;font-size:9px;letter-spacing:1.8px;color:#65809b}
.ticker-track b{color:var(--cyan)}
@keyframes ticker{to{transform:translateX(-50%)}}
.about-section{
  padding:110px 5vw;background:var(--paper);color:var(--ink);
  display:grid;grid-template-columns:90px .9fr 1.1fr;gap:46px
}
.section-index{width:42px;height:42px;border:1px solid #263644;display:grid;place-items:center;font-size:10px}
.about-title span{font-size:9px;letter-spacing:2px;color:#738596}
.about-title h2{font-size:44px;line-height:1.2;letter-spacing:-1.5px;margin:12px 0}
.about-copy p{margin-top:0;font-size:14px;line-height:1.9;color:#60717e}.about-copy b{color:#132431}
.network-section{padding:110px 5vw;overflow:hidden}
.network-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:60px}
.network-head h2,.scene-intro h2,.principles-head h2,.signal-copy h2,.contact-heading h2{font-size:42px;line-height:1.2;letter-spacing:-1.5px;margin:12px 0 0}
.network-head>p{max-width:440px;color:#7f96aa;font-size:13px;line-height:1.8}
.network-map{position:relative;min-height:700px;border:1px solid var(--line);background:#081421;overflow:hidden}
.network-ring{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid rgba(95,229,255,.12);border-radius:50%}
.ring-1{width:620px;height:620px}.ring-2{width:440px;height:440px}.ring-3{width:260px;height:260px}
.network-core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:230px;height:230px;border-radius:50%;background:#0e2034;border:1px solid rgba(95,229,255,.32);
  display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;
  box-shadow:0 0 70px rgba(92,140,255,.12)
}
.network-core small{font-size:8px;letter-spacing:2px;color:#65859f}
.network-core strong{font-size:24px;margin:8px 0}.network-core span{font-size:8px;color:var(--cyan);letter-spacing:1px}
.orbit-card{
  position:absolute;width:240px;padding:20px;background:#0d1c2e;border:1px solid var(--line)
}
.orbit-card b{font-size:9px;color:var(--cyan)}.orbit-card h3{font-size:19px;margin:8px 0}.orbit-card p{font-size:11px;line-height:1.7;color:#7991a6;margin:0}
.orbit-web{left:7%;top:12%}.orbit-data{right:7%;top:15%}.orbit-tool{left:9%;bottom:11%}.orbit-ops{right:8%;bottom:12%}
.scenes-section{padding:110px 5vw;background:#e8eef2;color:var(--ink)}
.scene-intro{margin-bottom:45px}
.scene-intro span{color:#728696}
.scene-stack{display:grid;gap:16px}
.scene-panel{
  min-height:340px;display:grid;grid-template-columns:90px 1fr .8fr;gap:30px;
  align-items:center;padding:34px;position:relative;overflow:hidden
}
.scene-one{background:#fff}.scene-two{background:#102032;color:#fff}.scene-three{background:#ccecff}
.scene-number{font-size:38px;font-weight:900;align-self:start}
.scene-content small{font-size:8px;letter-spacing:2px;opacity:.6}
.scene-content h3{font-size:30px;margin:10px 0}.scene-content p{font-size:13px;line-height:1.8;max-width:600px;opacity:.72}
.scene-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:18px}.scene-tags span{font-size:9px;padding:5px 9px;border:1px solid currentColor;opacity:.7}
.scene-art{height:220px;position:relative}
.art-one{border:1px solid #cad5dc;background:linear-gradient(#eef4f7 1px,transparent 1px),linear-gradient(90deg,#eef4f7 1px,transparent 1px);background-size:28px 28px}
.art-one i{position:absolute;width:38px;height:38px;border-radius:50%;background:#11202d}.art-one i:nth-child(1){left:15%;top:25%}.art-one i:nth-child(2){right:15%;top:42%;background:#5c8cff}.art-one i:nth-child(3){left:45%;bottom:15%;background:#5fe5ff}
.art-two{display:flex;align-items:end;gap:12px;padding:25px;border:1px solid rgba(255,255,255,.15)}
.art-two .bar{width:20%;background:#5fe5ff}.b1{height:30%}.b2{height:62%;background:#5c8cff!important}.b3{height:45%;background:#8df7bd!important}.b4{height:82%}
.art-three{border:1px solid #87bed3}
.art-three i{position:absolute;width:70px;height:70px;border:1px solid #25475a}.art-three i:nth-child(1){left:8%;top:18%}.art-three i:nth-child(2){right:10%;top:16%;border-radius:50%}.art-three i:nth-child(3){left:38%;bottom:10%;background:#11202d}.art-three i:nth-child(4){right:28%;bottom:28%;width:36px;height:36px;background:#5c8cff;border-color:#5c8cff}
.principles-section{padding:110px 5vw;background:#07111f}
.principles-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:45px}
.principle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.principle-grid article{background:#0a1726;padding:30px;min-height:260px}
.p-icon{width:42px;height:42px;border:1px solid rgba(95,229,255,.22);display:grid;place-items:center;color:var(--cyan);font-size:11px}
.principle-grid h3{font-size:19px;margin:52px 0 8px}.principle-grid p{font-size:11px;line-height:1.8;color:#7990a5}
.signal-section{
  padding:90px 5vw;background:#5c8cff;color:#fff;
  display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center
}
.signal-copy span{color:#d5e1ff}.signal-copy h2{font-size:41px}
.signal-wave{height:180px;display:flex;align-items:center;justify-content:center;gap:9px}
.signal-wave i{display:block;width:6px;background:#fff;border-radius:6px;animation:pulse 1.8s ease-in-out infinite}
.signal-wave i:nth-child(1){height:20%}.signal-wave i:nth-child(2){height:44%;animation-delay:.1s}.signal-wave i:nth-child(3){height:75%;animation-delay:.2s}.signal-wave i:nth-child(4){height:95%;animation-delay:.3s}.signal-wave i:nth-child(5){height:58%;animation-delay:.4s}.signal-wave i:nth-child(6){height:82%;animation-delay:.5s}.signal-wave i:nth-child(7){height:42%;animation-delay:.6s}.signal-wave i:nth-child(8){height:68%;animation-delay:.7s}.signal-wave i:nth-child(9){height:26%;animation-delay:.8s}
@keyframes pulse{50%{transform:scaleY(.55);opacity:.6}}
.contact-section{padding:105px 5vw;background:#eef4f7;color:var(--ink)}
.contact-heading{max-width:900px;margin-bottom:48px}.contact-heading>span{color:#718698}.contact-heading p{color:#6d7d89;font-size:12px}
.contact-table{border-top:1px solid #becbd3}
.contact-table>div{display:grid;grid-template-columns:220px 1fr;gap:30px;padding:18px 0;border-bottom:1px solid #cdd7dd}
.contact-table small{font-size:8px;letter-spacing:1.5px;color:#748691}.contact-table strong{font-size:14px}
.footer{padding:42px 5vw 28px;background:#050d16;color:#fff;display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start}
.footer-brand{display:flex;gap:11px;align-items:center}.footer-mark{width:44px;height:44px;border:1px solid #28445c;display:grid;place-items:center;color:var(--cyan);font-size:11px}
.footer-brand strong{display:block;font-size:15px}.footer-brand small{display:block;font-size:8px;color:#57708a;margin-top:3px}
.footer-record{display:flex;justify-content:flex-end;gap:14px;flex-wrap:wrap;font-size:9px;color:#5f7588}.footer-record a{color:var(--cyan)}
.footer-copy{grid-column:1/-1;padding-top:18px;border-top:1px solid #142638;font-size:9px;color:#4e667a}
.back-top{position:fixed;right:18px;bottom:18px;width:42px;height:42px;border:1px solid rgba(95,229,255,.28);background:#0b1828;color:var(--cyan);cursor:pointer;opacity:0;pointer-events:none;transition:.2s;z-index:40}.back-top.show{opacity:1;pointer-events:auto}
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:35px}.data-visual{max-width:580px}
  .about-section{grid-template-columns:60px 1fr}.about-copy{grid-column:2}
  .network-map{min-height:850px}.orbit-web{left:4%;top:8%}.orbit-data{right:4%;top:11%}.orbit-tool{left:5%;bottom:8%}.orbit-ops{right:5%;bottom:9%}
  .scene-panel{grid-template-columns:70px 1fr}.scene-art{grid-column:2}
  .principle-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .header{padding:0 18px}.nav{position:absolute;top:76px;left:14px;right:14px;display:none;flex-direction:column;background:#0b1828;border:1px solid var(--line);padding:18px}.nav.open{display:flex}.menu-btn{display:block}
  .hero-grid{padding:55px 20px 35px}.hero h1{font-size:52px;letter-spacing:-3px}.signal-list{grid-template-columns:1fr}
  .about-section,.network-section,.scenes-section,.principles-section,.signal-section,.contact-section{padding-left:20px;padding-right:20px}
  .about-section{grid-template-columns:1fr}.section-index{display:none}.about-copy{grid-column:1}
  .network-head{flex-direction:column;align-items:flex-start}.network-map{min-height:auto;padding:25px;display:grid;gap:12px}.network-ring,.network-core{display:none}.orbit-card{position:static;width:auto}
  .scene-panel{grid-template-columns:1fr}.scene-art{grid-column:1}.scene-number{font-size:24px}
  .principle-grid{grid-template-columns:1fr}.signal-section{grid-template-columns:1fr}
  .contact-table>div{grid-template-columns:1fr;gap:6px}
  .footer{grid-template-columns:1fr}.footer-record{justify-content:flex-start}
}
@media(max-width:500px){
  .brand-copy small{display:none}.hero h1{font-size:42px;letter-spacing:-2px}.hero-actions{flex-direction:column;align-items:flex-start}
  .network-head h2,.scene-intro h2,.principles-head h2,.signal-copy h2,.contact-heading h2,.about-title h2{font-size:31px}
  .data-node{width:58px;height:58px}.center-core{width:125px;height:125px}.center-core strong{font-size:22px}
}