:root{
  --sky:#3db4e0;--sky2:#55c3e8;--navy:#0b3650;--ink:#173042;--green:#2fa035;
  --mist:#eefaff;--paper:#ffffff;--line:#dcebf2;--muted:#5c7180;--soft:#f7fbfd;
  --shadow:0 12px 34px rgba(11,54,80,.12);--radius:22px;--max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
body{margin:0;overflow-x:clip;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.68}
img{max-width:100%;height:auto}
a{color:#087ca9;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#075a78}
.wrap{width:min(var(--max),calc(100% - 34px));margin:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:white;padding:10px 14px;z-index:10000}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.header-inner{height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-weight:900;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--sky),var(--sky2));display:grid;place-items:center;color:#fff;box-shadow:0 7px 18px rgba(61,180,224,.25)}
.brand small{display:block;font-size:10px;color:var(--muted);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:20px;margin-left:auto}
.main-nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:14px}
.main-nav a:hover{color:#087ca9}
.btn,.cta-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:13px 20px;background:linear-gradient(135deg,var(--green),#43b849);color:#fff!important;text-decoration:none;font-weight:900;box-shadow:0 8px 20px rgba(47,160,53,.2);cursor:pointer}
.btn.secondary{background:#fff;color:var(--navy)!important;border:1px solid var(--line);box-shadow:none}
.menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:12px;width:44px;height:44px;font-size:22px}
.disclosure-strip{background:var(--navy);color:#eaf8ff;font-size:12px;text-align:center;padding:7px 14px}
.disclosure-strip a{color:white}
.hero{background:linear-gradient(180deg,var(--mist),#fff);padding:64px 0 46px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
.eyebrow{font-weight:900;color:#0b83b0;text-transform:uppercase;letter-spacing:.11em;font-size:12px}
h1,h2,h3{color:var(--navy);line-height:1.15;letter-spacing:-.025em}
h1{font-size:clamp(40px,6vw,70px);margin:.18em 0 .28em}
h2{font-size:clamp(27px,4vw,40px);margin:1.45em 0 .45em}
h3{font-size:22px;margin:1.2em 0 .35em}
.lead{font-size:20px;color:#385467;max-width:760px}
.hero-product{position:relative}
.hero-product:before{content:"";position:absolute;inset:7% -4% 2% 7%;background:radial-gradient(circle at center,rgba(61,180,224,.25),rgba(61,180,224,0) 64%);filter:blur(4px);z-index:0}
.hero-product img{position:relative;z-index:1;filter:drop-shadow(0 20px 28px rgba(11,54,80,.18))}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.kicker{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.pill{padding:7px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;font-weight:800;color:#486070}
.breadcrumbs{font-size:13px;color:var(--muted);padding:18px 0 0}
.breadcrumbs a{color:inherit}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:34px 0 72px}
.article{min-width:0}
.article p,.article li{font-size:17px}
.article ul,.article ol{padding-left:22px}
.article .note{background:var(--soft);border-left:4px solid var(--sky);padding:18px 20px;border-radius:14px;margin:24px 0}
.article .warning{background:#fff8e8;border-left-color:#e2a91a}
.article .safe{background:#effbf2;border-left-color:var(--green)}
.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:0 0 26px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 24px rgba(11,54,80,.06)}
.card h3{margin-top:0}
.card p{color:#486070}
.card a.more{font-weight:900}
.sidebar{position:relative}
.product-box{position:sticky;top:100px;border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:linear-gradient(180deg,#fff,var(--mist));box-shadow:var(--shadow)}
.product-box img{display:block;margin:auto;max-height:180px;object-fit:contain}
.product-box h3{font-size:20px}
.product-box p{font-size:14px;color:#526a78}
.product-box .btn{width:100%}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;margin:22px 0}
table{border-collapse:collapse;width:100%;min-width:640px;background:#fff}
th,td{text-align:left;padding:15px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--mist);color:var(--navy);font-size:14px}
tr:last-child td{border-bottom:0}
.check{color:var(--green);font-weight:900}
.x{color:#9b5c3c;font-weight:900}
.callout{padding:28px;border-radius:var(--radius);background:linear-gradient(135deg,var(--navy),#155777);color:#fff;margin:34px 0}
.callout h2,.callout h3{color:white;margin-top:0}
.callout p{color:#eaf7fb}
.callout .btn{background:white;color:var(--navy)!important}
.reference-list{font-size:14px;color:#526a78}
.reference-list a{word-break:break-word}
.hub-intro{padding:50px 0 24px}
.section{padding:48px 0}
.section.alt{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.footer{background:#082a3e;color:#dbeaf1;padding:48px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer h3{color:#fff;font-size:15px}
.footer a{color:#dbeaf1}
.footer small{color:#a7c0ce}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:30px;padding-top:20px;font-size:12px;color:#a7c0ce}
.promo-overlay{position:fixed;inset:0;z-index:9999;background:rgba(5,28,41,.92);display:none;align-items:center;justify-content:center;padding:18px}
.promo-overlay.is-open{display:flex}
.promo-panel{position:relative;width:min(1040px,96vw);max-height:94vh;overflow:auto;background:linear-gradient(145deg,#fff,#eaf9ff);border-radius:28px;box-shadow:0 28px 80px rgba(0,0,0,.42);display:grid;grid-template-columns:.9fr 1.1fr;align-items:center}
.promo-media{padding:30px;background:radial-gradient(circle at center,#fff 0,#dff7ff 70%)}
.promo-copy{padding:44px}
.promo-copy h2{font-size:clamp(34px,5vw,56px);margin:.2em 0}
.promo-close{position:absolute;right:16px;top:16px;z-index:5;border:1px solid var(--line);background:#fff;width:42px;height:42px;border-radius:50%;font-size:24px;cursor:pointer}
.promo-small{font-size:12px;color:#607783}
@media(max-width:900px){
  .main-nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:18px 22px;box-shadow:var(--shadow)}
  .main-nav.open{display:grid;gap:14px}
  .menu-btn{display:block}
  .header-cta{display:none}
  .hero-grid,.article-layout,.promo-panel{grid-template-columns:1fr}
  .hero{padding-top:44px}
  .hero-product{order:-1;max-width:560px;margin:auto}
  .article-layout{gap:16px}
  .sidebar{order:2}
  .product-box{position:static}
  .card-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .promo-copy{padding:28px}
  .promo-media{padding:18px;text-align:center}
  .promo-media img{max-height:260px}
}
@media(max-width:620px){
  .wrap{width:min(var(--max),calc(100% - 24px))}
  .header-inner{height:68px}
  .main-nav{top:68px}
  h1{font-size:40px}
  .lead{font-size:18px}
  .card-grid,.footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .promo-panel{max-height:96vh}
  .promo-copy h2{font-size:34px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}