:root{
  --navy:#061426;
  --navy-2:#0a1d34;
  --blue:#116bff;
  --cyan:#18d0c1;
  --lime:#b8f34a;
  --paper:#f4f5f2;
  --white:#fff;
  --ink:#0a1726;
  --muted:#657489;
  --line:rgba(10,23,38,.12);
  --radius:24px;
  --shadow:0 28px 80px rgba(5,25,47,.12);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:165px}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{display:block;max-width:100%}
.shell{width:min(1440px,calc(100% - 72px));margin:auto}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--blue);
  font-size:11px;
  font-weight:900;
  letter-spacing:.18em;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;background:currentColor}
.section{padding:92px 0}
.section.alt{background:#fff}
.section.dark{background:var(--navy);color:#fff}
.section-head{
  display:grid;
  grid-template-columns:1fr .78fr;
  gap:70px;
  align-items:end;
  margin-bottom:46px;
}
.section-head h2{
  margin:15px 0 0;
  font-size:clamp(44px,5.4vw,78px);
  line-height:1.02;
  letter-spacing:-.065em;
}
.section-head p{margin:0;color:var(--muted);font-size:16px;line-height:1.9}
.dark .section-head p{color:#9eb1c5}
.dark .eyebrow{color:var(--cyan)}

.topline{height:34px;background:#03101f;color:#a9bbcd;font-size:11px}
.topline .shell{height:100%;display:flex;align-items:center;justify-content:space-between}
.topline strong{color:var(--lime)}
.topline-links{display:flex;gap:20px}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  height:78px;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(10,23,38,.08);
  backdrop-filter:blur(18px);
}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between}
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb-inner{min-height:46px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.breadcrumbs{display:flex;align-items:center;gap:8px;color:#7d8b99;font-size:11px}
.breadcrumbs a:hover{color:var(--blue)}.breadcrumbs strong{color:#233447}
.breadcrumb-back{border:0;background:transparent;color:#536373;font:inherit;font-size:11px;font-weight:800;cursor:pointer}
.breadcrumb-back:hover{color:var(--blue)}
.brand{display:flex;align-items:center;gap:12px;font-weight:900}
.brand img{width:45px;height:45px;object-fit:contain}
.brand span{font-size:17px;line-height:1.1}
.brand small{display:block;margin-top:4px;color:#728096;font-size:8px;letter-spacing:.14em}
.main-nav{height:100%;display:flex;align-items:center;gap:30px}
.nav-item{height:100%;position:relative;display:flex;align-items:center}
.nav-item>a,.nav-parent-row>a{font-size:13px;font-weight:700}
.nav-item>a::after,.nav-parent-row>a::after{content:"";display:block;width:0;height:2px;margin-top:7px;background:var(--blue);transition:.2s}
.nav-item:hover>a::after,.nav-item.active>a::after,.nav-item:hover .nav-parent-row>a::after,.nav-item.active .nav-parent-row>a::after,.nav-item.submenu-open .nav-parent-row>a::after{width:100%}
.nav-parent-row{height:100%;display:flex;align-items:center;gap:4px}
.submenu-toggle{display:grid;place-items:center;width:28px;height:28px;padding:0;border:0;border-radius:9px;background:transparent;color:#607083;font-size:15px;font-weight:900;cursor:pointer}
.submenu-toggle:hover,.submenu-toggle:focus-visible{color:var(--blue);background:#eef4ff;outline:0}
.mega{
  position:absolute;
  left:50%;
  top:100%;
  width:720px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:0 0 24px 24px;
  background:#fff;
  box-shadow:0 25px 65px rgba(5,22,39,.16);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translate(-50%,12px);
  transition:opacity .18s,transform .18s,visibility .18s;
}
.has-mega::after{content:"";position:absolute;left:-30px;right:-30px;top:calc(100% - 8px);height:16px}
.has-mega:hover .mega,.has-mega:focus-within .mega,.has-mega.submenu-open .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.mega a{display:flex;gap:13px;padding:14px;border-radius:14px}
.mega a:hover{background:#f0f5ff}
.mega b{display:block;font-size:13px}
.mega span{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.45}
.mega-code{display:grid;place-items:center;flex:0 0 38px;height:38px;border-radius:11px;background:#e8f0ff;color:var(--blue);font-size:10px;font-weight:900}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-cta,.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 21px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:13px;
  font-weight:900;
  transition:.22s;
}
.nav-cta,.btn.primary{background:var(--blue);color:#fff}
.btn.secondary{background:#fff;color:var(--ink)}
.btn.outline{border-color:rgba(255,255,255,.34);color:#fff}
.btn:hover,.nav-cta:hover{transform:translateY(-2px);box-shadow:0 13px 30px rgba(17,107,255,.23)}
.menu-toggle{display:none;width:46px;height:46px;border:0;border-radius:14px;background:#edf1f5;font-size:20px}

.hero{
  position:relative;
  min-height:780px;
  overflow:hidden;
  color:#fff;
  background:#061426;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,#061426 0%,rgba(6,20,38,.97) 34%,rgba(6,20,38,.36) 68%,rgba(6,20,38,.08) 100%),
    url("../images/home-hero-ai-network.png") center/cover no-repeat;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:linear-gradient(90deg,#000,transparent 70%);
}
.hero-inner{
  position:relative;
  z-index:2;
  min-height:780px;
  display:grid;
  grid-template-columns:.94fr 1.06fr;
  align-items:center;
}
.hero-copy{padding:90px 0 100px}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:9px 13px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  color:#c8d7e6;
  font-size:11px;
  letter-spacing:.08em;
  background:rgba(255,255,255,.05);
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 6px rgba(184,243,74,.12)}
.hero h1{
  max-width:810px;
  margin:28px 0 25px;
  font-size:clamp(62px,6.5vw,104px);
  line-height:.95;
  letter-spacing:-.075em;
}
.hero h1 span{color:var(--cyan)}
.hero-lead{max-width:680px;margin:0;color:#b8c8d8;font-size:19px;line-height:1.8}
.hero-actions{display:flex;gap:12px;margin-top:36px}
.hero-note{display:flex;gap:25px;margin-top:44px;color:#8fa5ba;font-size:11px}
.hero-note span::before{content:"✓";margin-right:7px;color:var(--lime);font-weight:900}
.hero-float{
  position:absolute;
  right:0;
  bottom:48px;
  width:300px;
  padding:21px;
  border:1px solid rgba(255,255,255,.13);
  border-radius:20px;
  background:rgba(5,20,37,.76);
  backdrop-filter:blur(14px);
}
.hero-float small{color:#88a0b5;font-size:9px;letter-spacing:.16em}
.hero-float b{display:block;margin:9px 0 7px;font-size:20px}
.hero-float p{margin:0;color:#a9bbcb;font-size:11px;line-height:1.65}

.proof{position:relative;z-index:4;margin-top:-1px;background:#fff;border-bottom:1px solid var(--line)}
.proof-grid{display:grid;grid-template-columns:1.15fr repeat(4,1fr)}
.proof-intro,.proof-item{min-height:150px;padding:28px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
.proof-intro{padding-left:0}
.proof-intro b{font-size:18px}
.proof-intro span{margin-top:7px;color:var(--muted);font-size:11px;line-height:1.5}
.proof-item strong{font-size:44px;letter-spacing:-.06em}
.proof-item span{margin-top:8px;color:var(--muted);font-size:11px}

.business-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.business-card{
  position:relative;
  min-height:310px;
  padding:28px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  transition:.28s;
}
.business-card:hover{transform:translateY(-7px);box-shadow:var(--shadow);border-color:transparent}
.business-card.featured{grid-column:span 2;background:linear-gradient(135deg,#0b1e36,#123b6e);color:#fff}
.business-card.web{background:linear-gradient(145deg,#efffe3,#d9efff)}
.business-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:16px;background:#eaf1ff;color:var(--blue);font-size:12px;font-weight:900}
.featured .business-icon{background:rgba(255,255,255,.12);color:var(--cyan)}
.business-card h3{margin:34px 0 11px;font-size:24px;letter-spacing:-.035em}
.business-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}
.featured p{max-width:510px;color:#a9bfd3}
.business-link{position:absolute;left:28px;bottom:25px;font-size:11px;font-weight:900}
.business-card::after{content:"↗";position:absolute;right:25px;bottom:22px;font-size:22px;color:var(--blue)}
.business-card.featured::after{color:var(--cyan)}
.business-card.web::after{color:#0d7c59}
.business-card.web .business-icon{background:#fff;color:#0d7c59}

.product-stage{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  padding:22px;
  border-radius:32px;
  background:#fff;
  box-shadow:var(--shadow);
}
.product-image{min-height:610px;border-radius:23px;overflow:hidden;background:#dce8f4}
.product-image img{width:100%;height:100%;object-fit:cover}
.product-copy{padding:48px 42px;display:flex;flex-direction:column;justify-content:center}
.product-copy h2{margin:17px 0 18px;font-size:clamp(44px,5vw,72px);line-height:1;letter-spacing:-.065em}
.product-copy>p{color:var(--muted);font-size:15px;line-height:1.85}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:24px 0 30px}
.feature-item{padding:16px;border-radius:15px;background:#f1f4f6}
.feature-item b{display:block;font-size:13px}
.feature-item span{display:block;margin-top:5px;color:var(--muted);font-size:10px;line-height:1.5}

.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{position:relative;min-height:500px;border-radius:28px;overflow:hidden;background:#11253a}
.case-card img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover img{transform:scale(1.035)}
.case-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(3,15,27,.92))}
.case-info{position:absolute;z-index:2;left:28px;right:28px;bottom:27px;color:#fff}
.case-info small{color:var(--cyan);font-size:9px;font-weight:900;letter-spacing:.14em}
.case-info h3{margin:11px 0 16px;font-size:28px}
.case-metrics{display:flex;gap:12px}
.case-metrics span{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.12);font-size:10px;backdrop-filter:blur(8px)}

.method-row{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;border:1px solid rgba(255,255,255,.12);border-radius:28px;overflow:hidden;background:rgba(255,255,255,.12)}
.method-step{min-height:280px;padding:28px;background:#0a1d34}
.method-step strong{color:var(--cyan);font-size:12px;letter-spacing:.12em}
.method-step h3{margin:52px 0 12px;font-size:20px}
.method-step p{margin:0;color:#9db0c3;font-size:11px;line-height:1.7}

.founder{display:grid;grid-template-columns:.78fr 1.22fr;gap:70px;align-items:center}
.founder-photo{position:relative;min-height:690px;overflow:hidden;border-radius:30px;background:#e8e9e7}
.founder-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top}
.founder-photo figcaption{position:absolute;left:22px;right:22px;bottom:22px;padding:20px;border-radius:18px;background:rgba(6,20,38,.88);color:#fff;backdrop-filter:blur(12px)}
.founder-photo b{display:block;font-size:21px}
.founder-photo span{display:block;margin-top:6px;color:#a8bacb;font-size:11px}
.founder-copy h2{margin:18px 0 22px;font-size:clamp(45px,5vw,74px);line-height:1.02;letter-spacing:-.065em}
.founder-copy>p{color:var(--muted);font-size:15px;line-height:1.85}
.timeline{margin-top:28px}
.timeline-item{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:18px 0;border-top:1px solid var(--line)}
.timeline-item time{color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.1em}
.timeline-item b{display:block;font-size:15px}
.timeline-item span{display:block;margin-top:5px;color:var(--muted);font-size:11px;line-height:1.55}

.insight-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
.insight{position:relative;min-height:340px;padding:27px;border:1px solid var(--line);border-radius:24px;background:#fff;overflow:hidden}
.insight:first-child{background:linear-gradient(145deg,#dff7ff,#efffe3)}
.insight small{font-size:9px;font-weight:900;letter-spacing:.13em;color:var(--blue)}
.insight h3{max-width:420px;margin:22px 0 12px;font-size:25px;line-height:1.3}
.insight p{color:var(--muted);font-size:11px;line-height:1.7}
.insight a{position:absolute;left:27px;bottom:25px;font-size:11px;font-weight:900}

.contact-band{padding:105px 0;color:#fff;background:var(--navy)}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.contact-grid h2{margin:15px 0 20px;font-size:clamp(48px,6vw,86px);line-height:.98;letter-spacing:-.07em}
.contact-grid p{max-width:720px;color:#a7b9ca;line-height:1.8}
.contact-card{padding:31px;border-radius:24px;background:#fff;color:var(--ink)}
.contact-card h3{margin:0 0 8px;font-size:23px}
.contact-card>p{margin:0 0 21px;color:var(--muted);font-size:11px}
.contact-lines{display:grid;gap:9px;margin-bottom:21px}
.contact-line{padding:13px 15px;border-radius:13px;background:#f1f4f6;font-size:12px}
.contact-card .btn{width:100%;background:var(--lime);color:var(--ink)}

.footer{padding:65px 0 35px;color:#8ca0b3;background:#03101f}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:span 3;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900}
.footer-brand img{width:46px}
.footer-desc{max-width:320px;margin-top:17px;font-size:11px;line-height:1.75}
.footer-col b{display:block;margin-bottom:17px;color:#fff;font-size:12px}
.footer-col a{display:block;margin:10px 0;font-size:11px}
.copyright{display:flex;justify-content:space-between;margin-top:45px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:10px}
.mobile-dock{display:none}

.subhero{padding:120px 0 80px;color:#fff;background:linear-gradient(135deg,#061426,#0d3158)}
.subhero h1{max-width:900px;margin:22px 0;font-size:clamp(54px,6vw,92px);line-height:1;letter-spacing:-.07em}
.subhero p{max-width:720px;color:#aec0d2;font-size:17px;line-height:1.8}
.placeholder-content{padding:90px 0}
.placeholder-card{padding:45px;border-radius:28px;background:#fff;box-shadow:var(--shadow)}
.placeholder-card h2{margin:0 0 15px;font-size:38px}
.placeholder-card p{color:var(--muted);line-height:1.8}

/* Rich service pages */
.service-hero{padding:76px 0 56px;background:linear-gradient(135deg,#061426,#0b2747);color:#fff}
.service-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.service-hero-copy h1{margin:20px 0 22px;font-size:clamp(50px,4.9vw,78px);line-height:.98;letter-spacing:-.07em}
.service-hero-copy h1.compact-title{font-size:clamp(46px,4.2vw,66px)}
.service-hero-copy>p{max-width:680px;margin:0;color:#b1c3d4;font-size:17px;line-height:1.85}
.service-hero-actions{display:flex;gap:12px;margin-top:30px}
.service-hero-media{position:relative;min-height:520px;overflow:hidden;border:1px solid rgba(255,255,255,.14);border-radius:30px;background:#10233a;box-shadow:0 28px 70px rgba(0,0,0,.32)}
.service-hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.service-hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(3,15,27,.38))}
.service-outcomes{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line);background:#fff}
.service-outcome{min-height:126px;padding:30px;border-right:1px solid var(--line)}
.service-outcome:last-child{border-right:0}
.service-outcome b{display:block;font-size:25px;letter-spacing:-.035em}
.service-outcome span{display:block;margin-top:9px;color:var(--muted);font-size:11px;line-height:1.55}
.service-story{display:grid;grid-template-columns:1fr 1fr;gap:62px;align-items:center}
.service-story.reverse .service-visual{order:2}
.service-copy h2{margin:16px 0 20px;font-size:clamp(44px,5vw,72px);line-height:1.02;letter-spacing:-.065em}
.service-copy>p{color:var(--muted);font-size:15px;line-height:1.9}
.service-visual{min-height:520px;overflow:hidden;border-radius:28px;background:#0b1e35;box-shadow:var(--shadow)}
.service-visual img{width:100%;height:100%;object-fit:cover}
.service-points{display:grid;gap:10px;margin-top:25px}
.service-point{display:grid;grid-template-columns:40px 1fr;gap:14px;padding:16px;border-radius:15px;background:#f1f4f6}
.service-point i{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#fff;color:var(--blue);font-style:normal;font-size:11px;font-weight:900}
.service-point b{display:block;font-size:14px}
.service-point span{display:block;margin-top:5px;color:var(--muted);font-size:11px;line-height:1.55}
.deliverable-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.deliverable{min-height:260px;padding:28px;border:1px solid var(--line);border-radius:22px;background:#fff}
.deliverable em{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#e8f1ff;color:var(--blue);font-style:normal;font-size:11px;font-weight:900}
.deliverable h3{margin:30px 0 12px;font-size:22px}
.deliverable p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}
.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;overflow:hidden;border:1px solid rgba(255,255,255,.13);border-radius:26px;background:rgba(255,255,255,.13)}
.flow-step{min-height:230px;padding:26px;background:#0a1d34}
.flow-step small{color:var(--cyan);font-weight:900;letter-spacing:.12em}
.flow-step h3{margin:44px 0 12px;font-size:19px}
.flow-step p{margin:0;color:#9eb1c5;font-size:11px;line-height:1.7}
.cta-panel{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;padding:50px;border-radius:28px;background:linear-gradient(135deg,#0a2140,#0f4773);color:#fff}
.cta-panel h2{margin:0 0 12px;font-size:clamp(34px,4vw,56px);letter-spacing:-.05em}
.cta-panel p{max-width:760px;margin:0;color:#aec3d5;line-height:1.75}
.notice{margin-top:18px;padding:15px 18px;border-left:3px solid var(--lime);background:#f3f6f8;color:#536373;font-size:12px;line-height:1.7}
.case-detail{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.case-detail.reverse{grid-template-columns:.92fr 1.08fr}.case-detail.reverse .case-detail-media{order:2}
.case-detail-media{min-height:520px;overflow:hidden;border-radius:28px;background:#10243a;box-shadow:var(--shadow)}
.case-detail-media img{width:100%;height:100%;object-fit:cover}
.case-detail-copy h2{margin:15px 0 18px;font-size:clamp(42px,4.7vw,68px);line-height:1.02;letter-spacing:-.06em}
.case-detail-copy>p{color:var(--muted);font-size:14px;line-height:1.85}
.case-facts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:23px}
.case-fact{padding:17px;border-radius:15px;background:#f1f4f6}
.case-fact b{display:block;font-size:12px}.case-fact span{display:block;margin-top:6px;color:var(--muted);font-size:10px;line-height:1.55}
.case-results{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}
.case-results span{padding:10px 13px;border-radius:999px;background:#e5f9f2;color:#087052;font-size:11px;font-weight:900}
.article-feature{display:grid;grid-template-columns:1.15fr .85fr;gap:0;overflow:hidden;border-radius:30px;background:#07182b;color:#fff;box-shadow:var(--shadow)}
.article-feature img{width:100%;height:100%;min-height:520px;object-fit:cover}
.article-feature-copy{padding:52px;display:flex;flex-direction:column;justify-content:center}
.article-feature-copy h2{margin:18px 0;font-size:clamp(38px,4.5vw,62px);line-height:1.05;letter-spacing:-.055em}
.article-feature-copy p{color:#a9bbcc;line-height:1.85}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{overflow:hidden;border:1px solid var(--line);border-radius:22px;background:#fff;transition:.28s}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.article-card img{width:100%;height:220px;object-fit:cover}
.article-card-body{padding:25px}
.article-card small{color:var(--blue);font-weight:900;letter-spacing:.12em}
.article-card h3{margin:16px 0 12px;font-size:22px;line-height:1.25}
.article-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}
.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.principle{min-height:260px;padding:30px;border-radius:23px;background:#0a1d34}
.principle small{color:var(--cyan);font-weight:900}.principle h3{margin:48px 0 14px;color:#fff;font-size:23px}.principle p{margin:0;color:#9fb2c4;font-size:12px;line-height:1.75}
.contact-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.contact-step{padding:28px;border:1px solid var(--line);border-radius:22px;background:#fff}
.contact-step strong{color:var(--blue);font-size:12px;letter-spacing:.12em}
.contact-step h3{margin:28px 0 12px;font-size:22px}.contact-step p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}
body.menu-open{overflow:hidden}

/* Feishu + AI application center */
.scenario-nav{position:sticky;z-index:40;top:78px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(18px)}
.scenario-nav-inner{display:flex;align-items:center;gap:8px;min-height:72px;overflow-x:auto;scrollbar-width:none}
.scenario-nav-inner::-webkit-scrollbar{display:none}
.scenario-nav-label{flex:0 0 auto;margin-right:10px;color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.12em}
.scenario-nav a{flex:0 0 auto;padding:11px 15px;border-radius:999px;color:#405165;font-size:11px;font-weight:800;white-space:nowrap}
.scenario-nav a:hover,.scenario-nav a.active{color:#fff;background:var(--navy)}
.feishu-intro{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.feishu-intro h2{margin:15px 0 0;font-size:clamp(42px,5vw,70px);line-height:1.03;letter-spacing:-.06em}
.feishu-intro-copy{padding:34px;border:1px solid var(--line);border-radius:24px;background:#fff}
.feishu-intro-copy p{margin:0;color:var(--muted);font-size:15px;line-height:1.9}
.capability-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;margin-top:25px;overflow:hidden;border:1px solid var(--line);border-radius:17px;background:var(--line)}
.capability-strip span{padding:18px 10px;background:#f7f9fa;text-align:center;font-size:11px;font-weight:900}
.upgrade-grid{display:grid;grid-template-columns:1fr 86px 1fr;gap:18px;align-items:stretch}
.upgrade-side{padding:34px;border-radius:25px;background:#fff}
.upgrade-side.ai{color:#fff;background:linear-gradient(145deg,#08213c,#0b4a70)}
.upgrade-side small{color:var(--blue);font-weight:900;letter-spacing:.12em}.upgrade-side.ai small{color:var(--cyan)}
.upgrade-side h3{margin:18px 0 22px;font-size:27px}
.upgrade-side ul{display:grid;gap:13px;margin:0;padding:0;list-style:none}
.upgrade-side li{position:relative;padding-left:18px;color:var(--muted);font-size:12px;line-height:1.6}
.upgrade-side.ai li{color:#b7cad9}.upgrade-side li::before{content:"";position:absolute;left:0;top:.65em;width:7px;height:7px;border-radius:50%;background:var(--lime)}
.upgrade-arrow{display:grid;place-items:center;color:var(--blue);font-size:32px;font-weight:900}
.scenario-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scenario-card{display:grid;grid-template-columns:1.05fr .95fr;min-height:400px;overflow:hidden;border:1px solid var(--line);border-radius:27px;background:#fff;transition:.28s}
.scenario-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.scenario-card-media{position:relative;min-height:100%;overflow:hidden;background:#0b213a}
.scenario-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 55%,rgba(3,15,27,.2))}
.scenario-card img{width:100%;height:100%;object-fit:cover;transition:.5s}.scenario-card:hover img{transform:scale(1.035)}
.scenario-card-copy{display:flex;flex-direction:column;padding:28px}
.scenario-card-copy small{color:var(--blue);font-size:9px;font-weight:900;letter-spacing:.13em}
.scenario-card-copy h3{margin:17px 0 12px;font-size:27px;line-height:1.18}
.scenario-card-copy p{margin:0;color:var(--muted);font-size:11px;line-height:1.75}
.scenario-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.scenario-tags span{padding:7px 9px;border-radius:8px;background:#eef3f6;color:#415265;font-size:9px;font-weight:800}
.scenario-card-link{margin-top:auto;padding-top:20px;color:var(--blue);font-size:11px;font-weight:900}
.architecture{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:36px}
.architecture-step{position:relative;min-height:190px;padding:24px;border:1px solid rgba(255,255,255,.13);border-radius:20px;background:#0a1d34}
.architecture-step:not(:last-child)::after{content:"→";position:absolute;z-index:2;top:50%;right:-18px;color:var(--cyan);font-size:18px;font-weight:900}
.architecture-step small{color:var(--cyan);font-weight:900}.architecture-step h3{margin:28px 0 10px;color:#fff;font-size:18px}
.architecture-step p{margin:0;color:#9eb1c5;font-size:10px;line-height:1.65}
.scenario-hero{padding:72px 0 54px;color:#fff;background:#061426}
.scenario-hero-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:45px;align-items:center}
.scenario-hero-copy h1{margin:19px 0 22px;font-size:clamp(48px,5.2vw,78px);line-height:.98;letter-spacing:-.07em}
.scenario-hero-copy>p{color:#afc1d2;font-size:16px;line-height:1.82}
.scenario-hero-media{min-height:480px;overflow:hidden;border:1px solid rgba(255,255,255,.14);border-radius:28px}
.scenario-hero-media img{width:100%;height:100%;object-fit:cover}
.app-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}
.app-card{min-height:260px;padding:29px;border:1px solid var(--line);border-radius:22px;background:#fff}
.app-card small{color:var(--blue);font-weight:900;letter-spacing:.12em}.app-card h3{margin:26px 0 12px;font-size:23px}
.app-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}
.app-card ul{display:grid;gap:8px;margin:18px 0 0;padding:0;list-style:none}.app-card li{color:#425466;font-size:10px}.app-card li::before{content:"✓";margin-right:8px;color:#08a177;font-weight:900}
.scenario-pagination{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}
.scenario-pagination a{padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}
.scenario-pagination small{display:block;color:var(--muted);font-size:9px}.scenario-pagination b{display:block;margin-top:7px;font-size:16px}
.scope-note{padding:24px;border:1px solid #d8e4ea;border-radius:18px;background:#f2f8fa;color:#536676;font-size:12px;line-height:1.75}
.business-pager-section{padding-top:58px;padding-bottom:58px;background:#eef2f4}
.back-to-top{position:fixed;z-index:44;right:22px;bottom:22px;display:grid;place-items:center;width:48px;height:48px;border:1px solid rgba(255,255,255,.2);border-radius:50%;background:rgba(6,20,38,.9);color:#fff;box-shadow:0 14px 36px rgba(5,25,47,.2);font-size:20px;font-weight:900;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(12px);transition:.22s;backdrop-filter:blur(12px)}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--blue)}

@media(max-width:1180px){
  .main-nav{gap:18px}.nav-item>a{font-size:12px}.nav-cta{display:none}
  .business-grid{grid-template-columns:repeat(3,1fr)}
  .proof-grid{grid-template-columns:repeat(4,1fr)}.proof-intro{grid-column:span 4;border-bottom:1px solid var(--line)}
  .proof-item:nth-child(5){border-right:0}
  .method-row{grid-template-columns:repeat(5,240px);overflow-x:auto}
}

@media(max-width:900px){
  html{scroll-padding-top:140px}
  .scenario-nav{top:68px}
  .shell{width:min(100% - 30px,1440px)}
  .topline{display:none}.site-header{height:68px}.main-nav{display:none}.menu-toggle{display:block}
  .breadcrumb-inner{min-height:42px}.breadcrumb-back{font-size:10px}
  .nav-actions{margin-left:auto}
  .main-nav.open{
    position:fixed;display:block;top:68px;left:0;right:0;height:calc(100vh - 68px);padding:18px 20px 110px;
    overflow:auto;background:#fff;
  }
  .nav-item{height:auto;display:block;border-bottom:1px solid var(--line)}.nav-item>a{display:block;padding:18px 4px;font-size:15px}
  .nav-parent-row{height:auto;display:grid;grid-template-columns:1fr 48px;gap:8px}
  .nav-parent-row>a{display:block;padding:18px 4px;font-size:15px}
  .submenu-toggle{width:44px;height:44px;align-self:center;background:#edf2f7;font-size:18px}
  .has-mega::after{display:none}
  .mega{display:none;position:static;width:auto;padding:0 0 15px;border:0;box-shadow:none;opacity:1;visibility:visible;pointer-events:auto;transform:none;transition:none}
  .has-mega:hover .mega,.has-mega:focus-within .mega{display:none;transform:none}
  .has-mega.submenu-open .mega,.has-mega.submenu-open:hover .mega,.has-mega.submenu-open:focus-within .mega{display:block;transform:none}
  .mega-grid{grid-template-columns:1fr}
  .mega a{padding:13px 8px;background:#f7f9fb}
  .hero,.hero-inner{min-height:720px}.hero-inner{grid-template-columns:1fr}.hero::before{background:linear-gradient(90deg,#061426 0%,rgba(6,20,38,.88) 72%,rgba(6,20,38,.35)),url("../images/home-hero-ai-network.png") 64% center/cover}
  .hero-copy{padding:85px 0}.hero-float{display:none}
  .section{padding:74px 0}.section-head{grid-template-columns:1fr;gap:22px}
  .business-grid{grid-template-columns:repeat(2,1fr)}.business-card.featured{grid-column:span 2}
  .product-stage,.founder,.contact-grid{grid-template-columns:1fr}.product-image{min-height:500px}
  .case-grid{grid-template-columns:1fr}.insight-grid{grid-template-columns:1fr 1fr}.insight:first-child{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:24px}.footer-grid>div:first-child{grid-column:span 3;margin-bottom:12px}
  .service-hero-grid,.service-story{grid-template-columns:1fr}.service-hero-media{min-height:470px}.service-story.reverse .service-visual{order:0}
  .service-outcomes{grid-template-columns:1fr 1fr}.service-outcome:nth-child(2){border-right:0}
  .deliverable-grid{grid-template-columns:1fr 1fr}.flow-grid{grid-template-columns:repeat(5,230px);overflow-x:auto}
  .cta-panel{grid-template-columns:1fr}
  .case-detail,.case-detail.reverse,.article-feature{grid-template-columns:1fr}.case-detail.reverse .case-detail-media{order:0}
  .article-grid,.principle-grid,.contact-steps{grid-template-columns:1fr 1fr}
  .scenario-grid{grid-template-columns:1fr}.scenario-card{min-height:360px}
  .scenario-hero-grid,.feishu-intro{grid-template-columns:1fr}.scenario-hero-media{min-height:430px}
  .architecture{grid-template-columns:repeat(5,220px);overflow-x:auto;padding-bottom:8px}
}

@media(max-width:600px){
  .brand span{font-size:14px}.brand img{width:40px;height:40px}
  .hero,.hero-inner{min-height:690px}.hero h1{font-size:51px}.hero-lead{font-size:16px}.hero-actions{align-items:stretch;flex-direction:column}.hero-note{gap:10px;flex-direction:column}
  .proof-grid{grid-template-columns:1fr 1fr}.proof-intro{grid-column:span 2}.proof-item{min-height:125px;padding:20px}.proof-item strong{font-size:36px}
  .section-head h2{font-size:42px}.business-grid{grid-template-columns:1fr}.business-card.featured{grid-column:auto}.business-card{min-height:280px}
  .product-stage{padding:12px}.product-image{min-height:360px}.product-copy{padding:32px 20px}.feature-list{grid-template-columns:1fr}
  .case-card{min-height:410px}.case-info h3{font-size:23px}.case-metrics{flex-wrap:wrap}
  .founder{gap:35px}.founder-photo{min-height:540px}.timeline-item{grid-template-columns:1fr;gap:5px}
  .insight-grid{grid-template-columns:1fr}.insight:first-child{grid-column:auto}
  .contact-card{padding:24px}.footer-grid{grid-template-columns:1fr}.copyright{gap:12px;flex-direction:column}
  .mobile-dock{position:fixed;z-index:45;display:grid;grid-template-columns:1fr 1fr;left:12px;right:12px;bottom:12px;overflow:hidden;border-radius:15px;box-shadow:0 12px 35px rgba(0,0,0,.24)}
  .mobile-dock a{display:grid;place-items:center;min-height:52px;background:#fff;font-size:12px;font-weight:900}
  .mobile-dock a:last-child{background:var(--lime)}
  .service-hero{padding:58px 0 40px}.service-hero-copy h1{font-size:40px}.service-hero-media{min-height:330px}
  .service-hero-actions{flex-direction:column}.service-outcome{min-height:112px;padding:20px}.service-outcome b{font-size:20px}
  .deliverable-grid{grid-template-columns:1fr}.service-visual{min-height:360px}.cta-panel{padding:30px}
  .subhero{padding:72px 0 56px}.subhero h1{font-size:46px}
  .breadcrumbs{gap:5px;font-size:10px}.breadcrumbs a:nth-of-type(2),.breadcrumbs a:nth-of-type(2)+span{display:none}
  .case-detail-media{min-height:350px}.case-facts{grid-template-columns:1fr}.article-feature-copy{padding:30px}
  .article-grid,.principle-grid,.contact-steps{grid-template-columns:1fr}.article-card img{height:210px}
  .scenario-nav-inner{min-height:58px;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch}.scenario-nav-label{display:none}
  .scenario-nav a{scroll-snap-align:start}
  .capability-strip{grid-template-columns:1fr 1fr}.capability-strip span:last-child{grid-column:span 2}
  .upgrade-grid{grid-template-columns:1fr}.upgrade-arrow{min-height:34px;transform:rotate(90deg)}
  .scenario-card{grid-template-columns:1fr;min-height:0}.scenario-card-media{height:235px}.scenario-card-copy{min-height:300px}
  .scenario-hero{padding:52px 0 38px}.scenario-hero-copy h1{font-size:42px}.scenario-hero-media{min-height:280px}
  .app-grid{grid-template-columns:1fr}.scenario-pagination{grid-template-columns:1fr}
  .business-pager-section{padding:38px 0 96px}
  .back-to-top{right:16px;bottom:82px;width:44px;height:44px}
}