:root{--bg:#f4f7fa;--white:#fff;--text:#17202a;--muted:#667085;--line:#e4e7ec;--a:#1769aa;--dark:#102b40}*{box-sizing:border-box}body{margin:0;font-family:Tahoma,Arial,sans-serif;line-height:1.85;color:var(--text);background:var(--bg)}bdi{unicode-bidi:isolate}.wrap{width:min(1080px,calc(100% - 28px));margin:auto}.narrow{max-width:820px}header{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line)}.head{min-height:66px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:900;text-decoration:none;color:var(--a)}.brand span{color:var(--text);margin-right:7px}summary{cursor:pointer;font-weight:700}header nav{position:absolute;left:14px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:12px}header nav a{display:block;padding:5px 10px;color:var(--text)}.hero{padding:52px 0;background:linear-gradient(#fff,#eef5fa)}h1{font-size:clamp(2rem,6vw,3.4rem);line-height:1.3;margin:.2em 0}h2{font-size:clamp(1.5rem,4vw,2.05rem);line-height:1.4}.eyebrow{color:var(--a);font-weight:800}.lead{font-size:1.08rem;color:#475467}.facts,.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}.facts div,.card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:15px}.facts b,.facts span,.card strong{display:block}.facts span,.small{color:var(--muted);font-size:.9rem}.btn{display:inline-flex;min-height:52px;align-items:center;justify-content:center;padding:10px 24px;border-radius:13px;background:#e6f1f8;color:var(--a);font-weight:800;text-decoration:none}.primary{background:var(--a);color:#fff}section{padding:52px 0;background:#fff}.alt{background:var(--bg)}.specs{display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.specs div{display:flex;justify-content:space-between;gap:15px;padding:12px 15px;border-bottom:1px solid var(--line)}dd{margin:0;font-weight:700}details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 15px;margin:10px 0}.steps{grid-template-columns:repeat(2,1fr)}.cta{text-align:center;background:var(--dark);color:#fff}footer{background:#091c2a;color:#dbe4eb;padding:40px 0}footer a{color:#fff}@media(min-width:760px){header details>summary{display:none}header nav{position:static;display:flex;border:0;padding:0}header nav a{padding:5px 9px}}@media(max-width:759px){.facts,.grid,.specs,.steps{grid-template-columns:1fr 1fr}.hero{padding:32px 0}section{padding:40px 0}.btn{width:100%}.specs{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.facts{grid-template-columns:1fr 1fr}}