:root{--blue:#2563EB;--navy:#1E3A5F;--ink:#0F172A;--muted:#64748B;--bg:#F5F7FB;--card:#fff;--line:#e2e8f0}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-text-size-adjust:100%}
a{color:var(--blue)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
header.top{background:var(--navy);position:sticky;top:0;z-index:50}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-block:12px;flex-wrap:wrap}
.logo{color:#fff;font-weight:800;font-size:20px;text-decoration:none;letter-spacing:.3px}
.logo small{background:var(--blue);font-size:10px;padding:2px 7px;border-radius:20px;margin-left:8px;vertical-align:middle}
nav.menu{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
nav.menu a{color:#cfe0f5;text-decoration:none;font-size:14px;font-weight:600}
nav.menu a:hover{color:#fff}
.btn{display:inline-block;background:var(--blue);color:#fff!important;padding:12px 22px;border-radius:12px;font-weight:700;text-decoration:none;font-size:15px;border:none;cursor:pointer}
.btn.sm{padding:8px 16px;font-size:13px}
.btn.ghost{background:#fff;color:var(--blue)!important;border:1.5px solid var(--blue)}
.hero{background:linear-gradient(160deg,#1E3A5F 0%,#2563EB 130%);color:#fff;padding:64px 0 56px}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.15;margin-bottom:16px}
.hero p.lead{font-size:clamp(16px,2.2vw,19px);color:#dbe8fb;max-width:720px;margin-bottom:26px}
.hero .btn{margin-right:10px;margin-bottom:8px}
.crumbs{font-size:13px;color:#a9c0dc;margin-bottom:14px}.crumbs a{color:#cfe0f5}
main section{padding:44px 0}
main section.alt{background:#fff}
h2{font-size:clamp(22px,3.4vw,30px);line-height:1.25;margin-bottom:14px;color:var(--navy)}
h3{font-size:18px;margin:0 0 6px;color:var(--ink)}
p{margin-bottom:12px;color:#1e293b}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.card p{font-size:15px;color:#334155;margin:0}
ul.check{list-style:none;margin:10px 0 16px}ul.check li{padding-left:28px;position:relative;margin-bottom:8px}ul.check li:before{content:"✓";position:absolute;left:0;color:#16a34a;font-weight:800}
ol.steps{counter-reset:s;list-style:none;margin-top:14px}ol.steps li{counter-increment:s;position:relative;padding:4px 0 14px 46px}ol.steps li:before{content:counter(s);position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.shot{margin:22px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 14px 40px rgba(15,23,42,.12);background:#fff}
.shot img{display:block;width:100%;height:auto}
.shot figcaption{font-size:13px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line)}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700}
details p{margin:10px 0 0}
.cta{background:linear-gradient(160deg,#1E3A5F,#2563EB);color:#fff;text-align:center;padding:52px 20px;border-radius:0}
.cta h2{color:#fff}.cta p{color:#dbe8fb;max-width:620px;margin:0 auto 22px}
.table{overflow-x:auto;margin:16px 0}
table{border-collapse:collapse;width:100%;background:#fff;font-size:14px}th,td{border:1px solid var(--line);padding:8px 10px;text-align:center}th{background:#eef2f7}
.note{background:#fff7e6;border:1px solid #fcd9a1;border-radius:10px;padding:12px 14px;font-size:14px;margin:14px 0}
.calc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin:18px 0}
.calc label{display:block;font-size:13px;font-weight:700;margin:10px 0 4px}.calc input,.calc select{width:100%;padding:10px;border:1px solid #cbd5e1;border-radius:8px;font-size:16px}
.calc .out{margin-top:14px;font-size:20px;font-weight:800;color:var(--navy)}
footer.bottom{background:var(--navy);color:#a9c0dc;padding:30px 0;font-size:13px}
footer.bottom a{color:#fff;text-decoration:none;margin-right:14px}
footer.bottom button{background:none;border:none;color:#fff;cursor:pointer;font:inherit}
@media(max-width:640px){header.top .wrap{padding-block:10px}nav.menu{gap:10px}nav.menu a.hide-sm{display:none}.hero{padding:44px 0 36px}}