:root{
  --ink:#0d1723;
  --navy:#101d33;
  --navy-2:#16263f;
  --steel:#e9edf1;
  --paper:#ffffff;
  --line:#d3dae2;
  --muted:#5b6875;
  --accent:#0b62a4;
  --accent-dark:#084b7e;
  --amber:#b96b12;
  --max:1180px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.6;
  letter-spacing:0;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* top strip */
.topbar{background:var(--navy);color:#c9d3df;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar span{display:inline-flex;align-items:center;gap:8px}
.topbar a{color:#dce6f1}
.topbar a[href^="tel:"]{white-space:nowrap}
.topbar .tb-label{font-style:normal}

/* header */
.site-header{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;border-radius:4px;background:var(--navy);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:15px;letter-spacing:.2px}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:1.4px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:28px;font-size:15px}
.nav a{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--accent);font-weight:600}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:4px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#eef3f8}

/* hero */
.hero{background:linear-gradient(180deg,#f6f8fa 0%,#ffffff 100%);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;padding-top:56px;padding-bottom:56px}
.eyebrow{font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--amber);font-weight:700;margin:0 0 14px}
.hero h1{font-size:42px;line-height:1.16;margin:0 0 18px;font-weight:750}
.hero p.lead{font-size:17px;color:#3c4a58;margin:0 0 28px;max-width:520px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-figure{margin:0}
.hero-figure img{width:100%;height:auto;border-radius:6px;border:1px solid var(--line)}
.hero-figure figcaption{font-size:12px;color:var(--muted);margin-top:10px}

/* stats */
.stats{border-bottom:1px solid var(--line);background:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:26px;padding-bottom:26px}
.stat b{display:block;font-size:26px;line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}

/* sections */
section{padding:64px 0}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{font-size:30px;line-height:1.25;margin:0 0 10px}
.section-head p{margin:0;color:var(--muted)}
.kicker{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 12px}

/* product grid */
.grid-products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--steel)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-body h3{margin:0;font-size:17px}
.card-body p{margin:0;font-size:14px;color:var(--muted);flex:1}
.card-body .more{font-size:14px;font-weight:600}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split h2{font-size:28px;line-height:1.3;margin:0 0 14px}
.split p{color:#3c4a58}
.checklist{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.checklist li{display:flex;gap:10px;font-size:15px}
.checklist li::before{content:"";flex:0 0 16px;height:16px;margin-top:5px;border-radius:2px;background:var(--accent)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{border-top:3px solid var(--accent);padding-top:18px}
.split .steps{grid-template-columns:1fr;gap:18px}
.split .step{border-top:2px solid var(--line);padding-top:14px}
.step h3{margin:0 0 8px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14px}
.step .num{font-size:12px;letter-spacing:1.4px;color:var(--amber);font-weight:700;text-transform:uppercase}

/* band */
.band{background:var(--navy);color:#dfe7f0}
.band h2{font-size:28px;margin:0 0 12px;color:#fff}
.band p{color:#b9c6d6;margin:0 0 10px}
.band .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.facts{display:grid;gap:10px;margin:0;padding:0;list-style:none;font-size:15px}
.facts li{padding-left:18px;position:relative}
.facts li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;background:#4c9fd8}

/* cta */
.cta{background:var(--steel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:34px;padding-bottom:34px;flex-wrap:wrap}
.cta h2{font-size:24px;margin:0 0 4px}
.cta p{margin:0;color:var(--muted)}

/* footer */
.site-footer{background:#0b1524;color:#9fb0c2;font-size:14px;padding:48px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.site-footer h4{color:#fff;font-size:13px;letter-spacing:1.2px;text-transform:uppercase;margin:0 0 12px}
.site-footer a{color:#c8d6e5}
.site-footer p{margin:0 0 8px}
.footer-bottom{border-top:1px solid #1d2c40;margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}

/* tables */
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.spec-table th{background:#f4f7fa;font-size:12px;letter-spacing:.8px;text-transform:uppercase;color:#465563;font-weight:700}

/* contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.contact-card{border:1px solid var(--line);border-radius:6px;padding:24px;background:#fff}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.contact-list dt{font-size:12px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.contact-list dd{margin:0;font-size:15px}
form{display:grid;gap:14px}
label{font-size:13px;font-weight:600;display:block;margin-bottom:6px}
input,textarea,select{
  width:100%;border:1px solid var(--line);border-radius:4px;padding:11px 12px;
  font:inherit;font-size:15px;background:#fff;color:var(--ink)
}
input:focus,textarea:focus,select:focus{outline:2px solid #cfe3f3;border-color:var(--accent)}
textarea{min-height:130px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12px;color:var(--muted);margin:0}

@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .grid-products{grid-template-columns:repeat(2,1fr)}
  .split,.band .wrap,.contact-grid{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .topbar .tb-label{display:none}
  .site-header .wrap{height:auto;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
  .site-header .btn{height:38px;padding:0 14px;font-size:14px}
  .nav{gap:16px;font-size:14px;flex-wrap:wrap}
  .hero h1{font-size:27px}
  .hero p.lead{font-size:16px}
  .grid-products{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  section{padding:44px 0}
  .hero .wrap{padding-top:34px;padding-bottom:34px}
}