:root{
    --navy:#002E5D; --navy-deep:#001B3A; --gold:#E8A33D; --gold-soft:#F0C079;
    --text:#1A2430; --text-sub:#5B6675; --line:#E4E9F0; --bg-soft:#F5F8FC;
    --white:#FFFFFF; --radius:6px; --max:1280px;
    --ease:cubic-bezier(.22,1,.36,1);
    --accent:#4F8A78; /* ENGINEERING accent (structural teal) */
  }
/* Page hero */
  .page-hero{padding:150px 0 76px;background:var(--navy);color:#fff;position:relative;overflow:hidden;}
  .page-hero::before{content:'';position:absolute;top:-100px;right:-100px;width:440px;height:440px;background:radial-gradient(circle,rgba(79,138,120,.22) 0%,transparent 70%);}
  .page-hero::after{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;opacity:.5;}
  .breadcrumb{position:relative;z-index:1;font-size:12px;letter-spacing:.08em;color:rgba(255,255,255,.6);margin-bottom:30px;}
  .breadcrumb a:hover{color:var(--gold);}
  .breadcrumb span{margin:0 8px;color:rgba(255,255,255,.35);}
  .ph-eyebrow{position:relative;z-index:1;display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:600;letter-spacing:.26em;color:var(--gold);margin-bottom:22px;}
  .ph-eyebrow::before{content:'';width:38px;height:1px;background:var(--gold);}
  .page-hero h1{position:relative;z-index:1;font-size:44px;font-weight:700;line-height:1.4;letter-spacing:.02em;margin-bottom:24px;}
  .page-hero .lead{position:relative;z-index:1;font-size:16px;line-height:2;color:rgba(255,255,255,.8);max-width:720px;}
  .page-hero .note{position:relative;z-index:1;margin-top:26px;font-size:12px;color:rgba(255,255,255,.55);border-left:2px solid var(--gold);padding-left:14px;line-height:1.8;max-width:660px;}
  /* Metrics */
  .metrics-band{background:var(--navy-deep);}
  .metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.12);}
  .metric{padding:40px 28px;border-right:1px solid rgba(255,255,255,.12);color:#fff;}
  .metric:last-child{border-right:none;}
  .metric .m-eyebrow{font-size:10.5px;letter-spacing:.22em;color:var(--gold);font-weight:600;margin-bottom:16px;}
  .metric .m-value{font-family:'Inter',sans-serif;font-size:38px;font-weight:700;line-height:1.05;letter-spacing:-.02em;margin-bottom:8px;}
  .metric .m-value .u{font-size:16px;color:var(--gold-soft);margin-left:3px;}
  .metric .m-desc{font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.68);}
  section.block{padding:88px 0;}
  section.block.bg-soft{background:var(--bg-soft);}
  .section-eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:600;letter-spacing:.24em;color:var(--navy);margin-bottom:20px;text-transform:uppercase;}
  .section-eyebrow .num{color:var(--gold);font-family:'Inter',sans-serif;}
  .section-title{font-size:32px;font-weight:700;line-height:1.5;margin-bottom:20px;}
  .section-lead{font-size:15.5px;line-height:2;color:var(--text-sub);max-width:720px;}
  /* 5-layer */
  .layers{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:48px;}
  .layer{background:#fff;border:1px solid var(--line);border-left:3px solid var(--gold);padding:28px 30px;transition:all .3s var(--ease);}
  .layer:hover{box-shadow:0 14px 34px rgba(0,46,93,.07);transform:translateY(-3px);}
  .layer.wide{grid-column:1 / -1;}
  .layer .l-tag{font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--gold);margin-bottom:8px;}
  .layer .l-title{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:12px;}
  .layer .l-body{font-size:13.5px;line-height:1.95;color:var(--text-sub);}
  .layer .l-body strong{color:var(--text);font-weight:600;}
  /* Sub-services */
  .subs{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
  .sub{background:#fff;border:1px solid var(--line);padding:34px 32px;position:relative;overflow:hidden;transition:all .3s var(--ease);}
  .sub::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);}
  .sub:hover{border-color:var(--navy);transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,46,93,.08);}
  .sub:hover::before{transform:scaleX(1);}
  .sub .s-no{font-family:'Inter',sans-serif;font-size:13px;font-weight:600;color:var(--gold);letter-spacing:.1em;margin-bottom:14px;}
  .sub .s-en{font-size:12px;letter-spacing:.18em;color:var(--accent);font-weight:600;margin-bottom:6px;}
  .sub .s-title{font-size:20px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:14px;}
  .sub .s-body{font-size:13.5px;line-height:1.95;color:var(--text-sub);margin-bottom:16px;}
  .sub .s-body strong{color:var(--navy);font-weight:600;}
  .sub .s-metric{display:inline-block;font-size:12px;font-weight:600;color:var(--navy);background:var(--bg-soft);border-left:2px solid var(--gold);padding:8px 14px;line-height:1.6;}
  /* Flow */
  .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px;}
  .flow-step{background:#fff;border:1px solid var(--line);padding:26px 22px;position:relative;}
  .flow-step .f-no{font-family:'Inter',sans-serif;font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.12em;margin-bottom:12px;}
  .flow-step .f-title{font-size:15px;font-weight:700;color:var(--navy);margin-bottom:10px;}
  .flow-step .f-body{font-size:12.5px;line-height:1.85;color:var(--text-sub);}
  .flow-step:not(:last-child)::after{content:'→';position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:var(--gold);font-weight:700;z-index:2;}
  .anon-note{margin-top:48px;font-size:11.5px;color:var(--text-sub);line-height:1.9;padding:18px 22px;background:var(--bg-soft);border-left:2px solid var(--line);}
  /* Related */
  .related{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px;}
  .rel-card{background:#fff;border:1px solid var(--line);padding:28px 26px;transition:all .3s var(--ease);}
  .rel-card:hover{border-color:var(--navy);transform:translateY(-4px);box-shadow:0 16px 34px rgba(0,46,93,.08);}
  .rel-card .r-en{font-size:11px;letter-spacing:.16em;color:var(--gold);font-weight:600;margin-bottom:8px;}
  .rel-card .r-title{font-size:16px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:14px;}
  .rel-card .r-link{font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--navy);display:inline-flex;align-items:center;gap:8px;}
  .rel-card:hover .r-link .arrow{transform:translateX(4px);}
  .rel-card .arrow{transition:transform .25s var(--ease);}
  /* CTA */
  .cta-section{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-deep) 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden;}
  .cta-section::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent 0%,var(--gold) 50%,transparent 100%);}
  .cta-inner{text-align:center;max-width:720px;margin:0 auto;}
  .cta-inner .eyebrow{font-size:12px;letter-spacing:.25em;color:var(--gold);font-weight:600;margin-bottom:20px;}
  .cta-inner h2{font-size:30px;font-weight:700;line-height:1.5;margin-bottom:20px;}
  .cta-inner p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.75);margin-bottom:34px;}
  .cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
  .cta-actions .btn-gold{background:var(--gold);color:var(--navy-deep);}
  .cta-actions .btn-gold:hover{background:var(--gold-soft);transform:translateY(-1px);}
  .cta-actions .btn-line{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;}
  .cta-actions .btn-line:hover{background:rgba(255,255,255,.1);}
  /* Footer */
  footer.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.7);padding:64px 0 28px;}
  .footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);}
  .footer-brand .logo{color:#fff;margin-bottom:16px;}
  .footer-brand p{font-size:13px;line-height:1.9;margin-bottom:16px;}
  .footer-address{font-size:12px;color:rgba(255,255,255,.5);line-height:1.8;}
  .footer-col h4{font-size:13px;color:#fff;font-weight:600;letter-spacing:.14em;margin-bottom:18px;}
  .footer-col ul{list-style:none;}
  .footer-col li{margin-bottom:11px;}
  .footer-col a{font-size:13px;color:rgba(255,255,255,.6);}
  .footer-col a:hover{color:var(--gold);}
  .footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:26px;font-size:12px;color:rgba(255,255,255,.4);}
  @media(max-width:1024px){
    .page-hero h1{font-size:34px;}
    .metrics{grid-template-columns:repeat(3,1fr);}
    .related{grid-template-columns:1fr;}
    .flow{grid-template-columns:repeat(2,1fr);}
    .flow-step:nth-child(2)::after,.flow-step:last-child::after{content:none;}
    .footer-top{grid-template-columns:1fr 1fr;}
  }
  @media(max-width:640px){
    .container{padding:0 20px;}
    section.block{padding:56px 0;}
    .page-hero{padding:120px 0 52px;}
    .page-hero h1{font-size:26px;}
    .metrics{grid-template-columns:1fr;}
    .metric{border-right:none;border-bottom:1px solid rgba(255,255,255,.12);}
    .layers,.subs,.flow{grid-template-columns:1fr;}
    .flow-step::after{content:none !important;}
    .section-title{font-size:25px;}
    .cta-inner h2{font-size:24px;}
    .footer-top{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:14px;align-items:flex-start;}
  }

  /* Section visuals (correlated diagrams) */
  .section-visual{margin:44px 0 4px;border:1px solid var(--line);background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 10px 30px rgba(0,46,93,.06);}
  .section-visual img{display:block;width:100%;height:auto;}
  .section-visual figcaption{font-size:12px;color:var(--text-sub);line-height:1.8;padding:14px 20px;border-top:1px solid var(--line);background:var(--bg-soft);}
  .section-visual figcaption strong{color:var(--navy);font-weight:600;}
  /* Official NeoSphere logo */
  .site-header .logo{display:flex;align-items:center;flex:0 0 auto;line-height:1;}
  .site-header .brand-logo-img{display:block;background:transparent;width:190px;height:auto;max-width:none;object-fit:contain;}
  @media(max-width:1180px){
    .header-inner{gap:16px;padding-left:22px;padding-right:22px;}
    .site-header .brand-logo-img{width:160px;}
    nav.global-nav ul{gap:16px;}
    nav.global-nav a{font-size:12px;}
    .header-cta{gap:8px;}
    .header-cta .btn{padding:10px 14px;}
  }
  @media(max-width:1024px){
    .site-header .brand-logo-img{width:150px;}
  }
  @media(max-width:640px){
    .header-inner{padding:12px 16px;gap:10px;}
    .site-header .brand-logo-img{width:132px;}
    .header-cta .btn-outline{display:none;}
    .header-cta .btn-primary{padding:9px 12px;font-size:11px;gap:5px;}
  }
  @media(max-width:380px){
    .site-header .brand-logo-img{width:116px;}
    .header-cta .btn-primary{padding:8px 10px;font-size:10.5px;}
  }