:root{
  --navy:#06285f;
  --navy2:#0b397c;
  --blue:#2d8bd8;
  --sky:#eaf6ff;
  --line:#dbe8f4;
  --text:#102b55;
  --muted:#5e6f87;
  --white:#fff;
  --shadow:0 18px 50px rgba(8,43,91,.12);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:#fff;line-height:1.55}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(8,43,91,.08)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{width:148px;height:auto}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700;color:#17365f}
.nav-links a{transition:.2s}
.nav-links a:hover{color:var(--blue)}
.nav-cta{background:var(--navy);color:#fff!important;padding:12px 18px;border-radius:999px}
.menu-toggle{display:none;border:0;background:none;font-size:26px;color:var(--navy)}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#f7fcff 0%,#eaf6ff 52%,#fff 100%);min-height:720px}
.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 75% 45%,rgba(54,151,221,.16),transparent 34%),linear-gradient(145deg,transparent 58%,rgba(13,55,110,.035) 58%)}
.hero-grid{position:relative;min-height:720px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:30px}
.eyebrow{display:inline-block;color:var(--blue);font-weight:800;letter-spacing:.14em;font-size:12px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(48px,6vw,78px);line-height:.98;letter-spacing:-.045em;margin:18px 0 26px;color:var(--navy)}
h1 span,h2 span{color:var(--blue)}
.hero-lead{font-size:20px;line-height:1.55;max-width:650px;color:#4b5f79}
.hero-actions{display:flex;gap:12px;margin:30px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 22px;border-radius:999px;font-weight:800;transition:.2s}
.btn-primary{background:var(--navy);color:#fff;box-shadow:0 10px 25px rgba(6,40,95,.2)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{border:1px solid #bfd4e8;color:var(--navy);background:#fff}
.hero-points{display:flex;gap:25px;border-top:1px solid #cfe0ee;padding-top:20px;max-width:670px}
.hero-points div{display:flex;gap:10px;align-items:center;font-size:13px;font-weight:700}
.hero-points b{color:var(--blue)}
.hero-product{position:relative;display:flex;align-items:end;justify-content:center;min-height:610px}
.product-glow{position:absolute;width:520px;height:520px;border-radius:50%;background:rgba(68,157,220,.11);filter:blur(2px)}
.hero-image{position:relative;width:min(600px,100%);filter:drop-shadow(0 25px 22px rgba(0,0,0,.2));z-index:2}
.hero-logo{display:none}
.section{padding:110px 0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:end}
h2{font-size:clamp(38px,4.3vw,58px);line-height:1.02;letter-spacing:-.04em;color:var(--navy);margin:14px 0 0}
.intro-text{font-size:19px;color:var(--muted);max-width:570px}
.intro-text p:last-child{margin-bottom:0}
.products{background:#f7fbff}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:45px}
.section-heading>p{max-width:420px;color:var(--muted);font-size:17px;margin-bottom:5px}
.section-heading.compact{margin-bottom:35px}
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 35px rgba(14,54,100,.06)}
.product-card.featured{border-color:#b8d8f0}
.card-image{background:linear-gradient(145deg,#edf7ff,#fff);padding:25px;height:390px;display:flex;align-items:center;justify-content:center}
.card-image img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 20px 20px rgba(0,0,0,.13))}
.card-body{padding:32px}
.product-tag{font-size:11px;font-weight:900;letter-spacing:.13em;color:var(--blue)}
.product-card h3{font-size:34px;margin:7px 0 10px;color:var(--navy)}
.product-card p{color:var(--muted)}
.product-card ul{padding-left:20px;color:#29476e}
.product-card li{margin:8px 0}
.text-link{display:inline-block;margin-top:12px;color:var(--navy);font-weight:900}
.feature-visual{background:#fff}
.visual-frame{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#f5fbff}
.visual-frame img{width:100%;height:auto}
.benefits{background:linear-gradient(180deg,#fff 0%,#f3faff 100%)}
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#cfe0ef;border:1px solid #cfe0ef;border-radius:var(--radius);overflow:hidden}
.benefit{background:#fff;padding:34px;min-height:220px}
.benefit span{font-weight:900;color:var(--blue);font-size:13px}
.benefit h3{font-size:22px;color:var(--navy);margin:35px 0 8px}
.benefit p{color:var(--muted);margin-bottom:0}
.full-visual{padding:0;background:#f7fbff}
.full-visual img{width:min(1536px,100%);margin:auto}
.comparison{background:#fff}
.comparison-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-card{min-width:0}
.compare-card.tnova{background:#f5fbff}
.compare-card.conventional{background:#fafafa}
.compare-top{min-height:220px;padding:24px 30px;display:flex;flex-direction:column;justify-content:space-between;align-items:center;text-align:center;font-size:24px;font-weight:900}
.tnova .compare-top{background:var(--navy);color:#fff}
.conventional .compare-top{background:#69727d;color:#fff}
.compare-top img{height:150px;width:auto;object-fit:contain;filter:drop-shadow(0 12px 12px rgba(0,0,0,.16))}
.fake-station{width:230px;height:75px;background:linear-gradient(145deg,#333,#111);border-radius:14px;box-shadow:inset 0 -8px 12px rgba(255,255,255,.08),0 14px 20px rgba(0,0,0,.15);position:relative}
.fake-station:before,.fake-station:after{content:"";position:absolute;background:#111;border-radius:5px}
.fake-station:before{width:45px;height:28px;left:28px;top:24px}
.fake-station:after{width:45px;height:28px;right:28px;top:24px}
.compare-row{padding:18px 30px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:3px}
.tnova .compare-row b{color:#16885b}
.conventional .compare-row b{color:#c83d3d}
.compare-row span{color:var(--muted);font-size:14px}
.installation{background:#f7fbff}
.specs{background:#fff}
.spec-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:center}
.spec-copy p{font-size:18px;color:var(--muted);max-width:500px}
.spec-links{display:flex;flex-direction:column;gap:12px;margin-top:28px}
.spec-links a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:12px;color:var(--navy);font-weight:800;background:#f8fcff}
.spec-images{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.spec-images img{width:100%;border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 30px rgba(12,52,92,.08)}
.cta{background:linear-gradient(135deg,var(--navy),#0c4e9a);color:#fff;padding:90px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:50px}
.cta h2{color:#fff}
.cta h2 span{color:#79c6ff}
.cta p{color:#c8dcf2;font-size:18px;max-width:620px;margin-bottom:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-light{background:#fff;color:var(--navy)}
.btn-outline-light{border:1px solid rgba(255,255,255,.5);color:#fff}
.footer{background:#031b40;color:#c9d9ec;padding:28px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.footer-logo{width:125px;filter:brightness(0) invert(1)}
.footer-contact{display:flex;gap:20px;flex-wrap:wrap;font-size:13px}
.footer-copy{font-size:12px;color:#8fa7c4}
@media (max-width:900px){
  .nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;padding:20px;box-shadow:0 15px 30px rgba(0,0,0,.08);flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px}
  .menu-toggle{display:block}
  .hero-grid,.split,.product-grid,.comparison-grid,.spec-grid{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero-grid{padding:70px 0 40px}
  .hero-product{min-height:450px}
  .hero-image{max-width:540px}
  .section-heading,.cta-inner{align-items:flex-start;flex-direction:column}
  .benefit-grid{grid-template-columns:1fr 1fr}
  .spec-images{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .container{width:min(100% - 28px,1180px)}
  .nav{height:68px}
  .brand img{width:125px}
  .hero-grid{padding-top:50px}
  .hero-points{flex-direction:column;gap:10px}
  .hero-product{min-height:330px}
  .section{padding:75px 0}
  .benefit-grid{grid-template-columns:1fr}
  .spec-images{grid-template-columns:1fr}
  .card-image{height:300px}
  .compare-top{min-height:190px}
  .cta{padding:70px 0}
  .footer-inner{align-items:flex-start;flex-direction:column}
}