:root{
  --bg:#08111f;
  --bg-soft:#0d1728;
  --panel:rgba(13,23,40,.72);
  --card:rgba(16,27,48,.82);
  --line:rgba(131,170,255,.14);
  --line-strong:rgba(131,170,255,.26);
  --text:#ebf3ff;
  --muted:#9cb0cf;
  --primary:#66b3ff;
  --primary-2:#7ef0ff;
  --accent:#9a7cff;
  --success:#67e8b4;
  --glow:0 20px 60px rgba(24,112,255,.18);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(102,179,255,.16), transparent 22%),
    radial-gradient(circle at 85% 12%, rgba(126,240,255,.12), transparent 20%),
    radial-gradient(circle at 50% 80%, rgba(154,124,255,.10), transparent 26%),
    linear-gradient(180deg,#07101c 0%, #08111f 42%, #091425 100%);
  line-height:1.75;
}
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size:36px 36px;
  mask-image:linear-gradient(180deg, rgba(255,255,255,.55), transparent 85%);
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(var(--max), calc(100% - 40px));margin:0 auto}
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(6,12,24,.74);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(135,176,255,.12);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:16px 0;
}
.brand{display:flex;align-items:center;gap:14px;font-weight:700;font-size:18px;letter-spacing:.3px}
.brand-logo-wrap{width:150px;height:50px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;overflow:hidden;flex:0 0 auto}
.brand-logo{width:150px;height:50px;object-fit:contain;background:transparent;border:none;display:block}
.brand-fallback{display:none;width:150px;height:50px;align-items:center;justify-content:center;border-radius:12px;background:linear-gradient(135deg, rgba(102,179,255,.22), rgba(126,240,255,.1));border:1px solid rgba(126,240,255,.22);box-shadow:0 10px 28px rgba(27,121,255,.16);color:var(--primary-2);font-weight:700}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;color:#b4c4df;flex-wrap:wrap}
.nav-links a:hover{color:#fff}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;padding:14px 22px;font-weight:700;
  transition:.24s ease;border:1px solid transparent;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  color:#07111f;background:linear-gradient(135deg, var(--primary-2), var(--primary));
  box-shadow:0 12px 32px rgba(78,170,255,.24);
}
.btn-secondary{background:rgba(255,255,255,.02);color:#fff;border-color:var(--line-strong)}
.hero,.section{padding:78px 0}
.hero{padding-top:46px;padding-bottom:34px}
.hero-shell,.card,.feature-panel,.timeline,.cta-box,.page-hero,.detail-block,.mini-card,.metric,.quote,.faq-item,.article-card,.case-card{
  background:linear-gradient(180deg, rgba(16,27,48,.84), rgba(9,17,31,.76));
  border:1px solid var(--line);
  box-shadow:var(--glow);
}
.hero-shell,.page-hero,.cta-box{border-radius:34px;overflow:hidden;position:relative}
.hero-shell::before,.page-hero::before,.cta-box::before{
  content:"";position:absolute;inset:auto -80px -80px auto;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle, rgba(126,240,255,.16), transparent 70%);
}
.hero-shell::after,.page-hero::after{
  content:"";position:absolute;left:-90px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle, rgba(154,124,255,.12), transparent 72%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;padding:38px;align-items:center}
.eyebrow,.section-tag,.tag{
  display:inline-flex;align-items:center;gap:10px;border-radius:999px;padding:8px 14px;
  border:1px solid rgba(126,240,255,.16);background:rgba(126,240,255,.06);
  color:#b8f5ff;font-size:12px;letter-spacing:1px;
}
h1{font-size:clamp(42px,6vw,72px);line-height:1.02;letter-spacing:-2px;margin:18px 0 20px}
h2{font-size:clamp(30px,4vw,48px);line-height:1.1;letter-spacing:-1px;margin-bottom:12px}
h3{font-size:24px}
h4{font-size:18px}
p{color:var(--muted)}
.highlight{
  background:linear-gradient(135deg, #c7f8ff, #77bfff 55%, #9b7dff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{font-size:17px;max-width:760px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-stats,.mini-grid,.cards,.scenario-grid,.footer-grid,.detail-grid,.split-grid,.stats-4,.article-grid,.case-grid{
  display:grid;gap:16px;
}
.hero-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
.stats-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.metric,.mini-card,.card,.scenario,.detail-block,.quote,.faq-item,.article-card,.case-card{
  border-radius:22px;padding:22px;
}
.metric strong,.mini-card strong{display:block;font-size:28px;color:#dff8ff;margin-bottom:6px}
.metric span,.mini-card p{font-size:14px;color:var(--muted)}
.hero-visual{
  min-height:560px;border-radius:28px;padding:20px;
  background:
    linear-gradient(180deg, rgba(7,17,31,.92), rgba(10,23,42,.84)),
    linear-gradient(135deg, rgba(102,179,255,.08), rgba(126,240,255,.08));
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.hero-visual::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 50% 42%, rgba(126,240,255,.18), transparent 18%),
    radial-gradient(circle at 50% 42%, rgba(102,179,255,.12), transparent 34%);
}
.orbit{
  position:absolute;border:1px solid rgba(126,240,255,.12);border-radius:50%;
  left:50%;top:44%;transform:translate(-50%,-50%);
}
.orbit.o1{width:380px;height:380px}
.orbit.o2{width:260px;height:260px}
.orbit.o3{width:150px;height:150px}
.core{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  width:140px;height:140px;border-radius:30px;display:grid;place-items:center;text-align:center;
  background:linear-gradient(135deg, rgba(126,240,255,.9), rgba(102,179,255,.9));
  color:#04101f;font-weight:800;box-shadow:0 24px 50px rgba(67,168,255,.34);
}
.core small{display:block;font-size:12px;letter-spacing:2px}
.node{
  position:absolute;border-radius:18px;padding:14px 16px;max-width:190px;
  background:rgba(10,22,40,.88);border:1px solid rgba(126,240,255,.16);
  box-shadow:0 12px 28px rgba(5,10,20,.3);
}
.node b{display:block;font-size:15px;margin-bottom:4px}
.node span{font-size:13px;color:var(--muted);display:block}
.n1{left:30px;top:70px}
.n2{right:24px;top:88px}
.n3{left:18px;bottom:120px}
.n4{right:20px;bottom:100px}
.n5{left:50%;bottom:18px;transform:translateX(-50%);max-width:260px;text-align:center}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;flex-wrap:wrap;margin-bottom:34px}
.section-head-left{max-width:780px}
.cards,.article-grid,.case-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.card,.scenario,.mini-card,.detail-block,.quote,.faq-item,.article-card,.case-card{
  background:linear-gradient(180deg, rgba(13,24,43,.94), rgba(9,17,31,.82));
  border:1px solid var(--line);
}
.card:hover,.scenario:hover,.mini-card:hover,.detail-block:hover,.article-card:hover,.case-card:hover{transform:translateY(-4px);transition:.22s ease}
.icon{
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;margin-bottom:16px;font-size:24px;
  background:linear-gradient(135deg, rgba(126,240,255,.14), rgba(154,124,255,.12));
  border:1px solid rgba(126,240,255,.18);color:#d9fbff;
}
.card p,.scenario span,.detail-block p,.timeline-content p,.feature-item p,.article-card p,.case-card p,.quote p,.faq-item p{font-size:14px}
.card ul,.detail-block ul,.case-card ul{list-style:none;display:grid;gap:10px;margin-top:16px}
.card li,.detail-block li,.case-card li{
  position:relative;padding-left:16px;font-size:14px;color:#c8d6ee;
}
.card li::before,.detail-block li::before,.case-card li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;
  background:linear-gradient(135deg, var(--primary-2), var(--accent));
}
.feature-grid,.split-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.feature-panel,.timeline,.page-hero,.detail-block{padding:30px;border-radius:28px}
.feature-list{display:grid;gap:14px;margin-top:20px}
.feature-item{padding:18px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.timeline-step{
  display:grid;grid-template-columns:42px 1fr;gap:14px;padding:14px 0;
  border-bottom:1px dashed rgba(126,240,255,.12);
}
.timeline-step:last-child{border-bottom:none;padding-bottom:0}
.timeline-num{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg, var(--primary-2), var(--primary));
  color:#06111f;font-weight:800;font-size:14px;
}
.scenario-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.cta{padding-top:8px;padding-bottom:94px}
.cta-box{
  padding:38px;display:grid;grid-template-columns:1.1fr .9fr;gap:20px;
  background:linear-gradient(135deg, rgba(12,25,45,.95), rgba(7,16,30,.98));
}
.cta-copy h2{margin-bottom:12px}
.cta-actions{display:grid;grid-template-columns:repeat(2,minmax(220px,1fr));gap:14px;align-self:center}
.contact-card{
  border-radius:22px;padding:18px 20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
}
.contact-label{display:block;font-size:12px;letter-spacing:1px;color:#b5c9ea;margin-bottom:8px}
.contact-value{display:block;font-size:20px;font-weight:700;line-height:1.4;word-break:break-all}
.contact-desc{display:block;margin-top:6px;font-size:13px;color:#8ea7c9}
.footer{padding:24px 0 44px;border-top:1px solid rgba(126,240,255,.08);color:#96a9c5;font-size:14px}
.footer-grid{grid-template-columns:2fr 1fr 1fr;align-items:start}
.footer-col h4{margin-bottom:12px}
.footer-col a,.footer-col p{display:block;margin-bottom:8px;color:#96a9c5}
.page-hero{margin-top:28px}
.page-hero h1{font-size:clamp(34px,5vw,60px);margin-bottom:12px}
.page-hero p{max-width:860px;font-size:16px}
.breadcrumbs{font-size:13px;color:#8fb6ea;margin-bottom:16px}
.mini-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:22px}
.detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:24px}
.list-clean{list-style:none;display:grid;gap:12px;margin-top:16px}
.list-clean li{padding-left:18px;position:relative;color:#c8d6ee}
.list-clean li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg, var(--primary-2), var(--accent))}
.table-like{display:grid;gap:12px;margin-top:18px}
.row{
  display:grid;grid-template-columns:180px 1fr;gap:16px;padding:16px 18px;
  border-radius:16px;background:rgba(255,255,255,.03);border:1px solid var(--line)
}
.row strong{color:#dff8ff}
.note{
  padding:16px 18px;border-radius:16px;background:rgba(103,232,180,.06);
  border:1px solid rgba(103,232,180,.18);color:#c3f7e4;margin-top:18px;font-size:14px
}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.badge{
  padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);font-size:13px;color:#c7d8f2
}
.faq-wrap{display:grid;gap:14px}
@media (max-width:1100px){
  .hero-grid,.feature-grid,.split-grid,.cards,.scenario-grid,.footer-grid,.detail-grid,.mini-grid,.stats-4,.article-grid,.case-grid{grid-template-columns:1fr 1fr}
  .cta-box{grid-template-columns:1fr}
}
@media (max-width:768px){
  .nav-inner{flex-direction:column;align-items:flex-start}
  .nav-links{gap:14px 18px}
  .hero-grid,.hero-stats,.cards,.feature-grid,.scenario-grid,.cta-actions,.footer-grid,.detail-grid,.mini-grid,.split-grid,.stats-4,.article-grid,.case-grid{grid-template-columns:1fr}
  .hero-grid,.page-hero,.feature-panel,.timeline,.detail-block,.cta-box{padding:24px}
  .hero-visual{min-height:620px}
  .n5{width:calc(100% - 30px)}
  .row{grid-template-columns:1fr}
  .hero,.section{padding:62px 0}
}