:root{--ink:#17242b;--deep:#123e46;--accent:#0b6d79;--pale:#edf6f5;--line:#d9e4e5;--muted:#56666c;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.66;background:#fff}
a{color:#075f6b}
.wrap{max-width:1120px;margin:auto;padding:0 22px}

/* Header */
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-inner{max-width:1380px;margin:0 auto;padding:14px 28px;display:grid;grid-template-columns:max-content 1fr max-content;align-items:center;gap:34px}
.brand{font-weight:800;font-size:18px;line-height:1.15;color:var(--deep);text-decoration:none;white-space:nowrap}
.main-nav{display:flex;align-items:center;justify-content:flex-end;gap:20px;min-width:0}
.main-nav a{text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap;color:#25464d}
.header-cta{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;font-size:14px;padding:12px 18px;border-radius:8px;white-space:nowrap}

/* Main content */
.hero{background:linear-gradient(180deg,var(--pale),#fff);padding:66px 0 52px}
.hero h1{font-size:44px;line-height:1.08;margin:0 0 18px;max-width:820px}
.hero p{font-size:19px;max-width:760px;color:#31464d}
.cta-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:24px}
.call-btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;padding:14px 20px;border-radius:8px}
.secondary{display:inline-block;border:1px solid var(--line);padding:13px 18px;border-radius:8px;text-decoration:none;font-weight:700;background:#fff}
main{padding:45px 0}
.grid{display:grid;grid-template-columns:minmax(0,2fr) 330px;gap:46px}
article h2{margin:38px 0 10px;font-size:28px;line-height:1.2;color:var(--deep)}
article p{font-size:17px}
.sidebar{background:#f5f8f8;border:1px solid var(--line);padding:24px;border-radius:10px;height:max-content;position:sticky;top:105px}
.sidebar h2{margin-top:0;font-size:23px}
.related{margin-top:40px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.card{display:block;border:1px solid var(--line);border-radius:9px;padding:16px;text-decoration:none;background:#fff;font-weight:700}
.breadcrumbs{font-size:14px;color:var(--muted);padding-top:18px}
.breadcrumbs a{text-decoration:none}
.notice{background:#fff7e8;border:1px solid #ead9b5;border-radius:8px;padding:14px 16px;margin:24px 0}
footer{background:var(--deep);color:#fff;margin-top:50px;padding:40px 0}
footer a{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.mobile-call{display:none}

/* Tablet/mobile: retain brand + visible phone CTA, hide menu before it gets cramped */
@media(max-width:1120px){
  .header-inner{grid-template-columns:minmax(0,1fr) max-content;gap:20px;padding:12px 20px}
  .main-nav{display:none}
  .brand{font-size:17px;white-space:normal}
  .header-cta{font-size:13px;padding:11px 14px}
}
@media(max-width:800px){
  .hero{padding:44px 0}
  .hero h1{font-size:35px}
  .grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .mobile-call{display:block;position:fixed;bottom:0;left:0;right:0;background:var(--accent);color:white;text-align:center;text-decoration:none;font-weight:800;padding:15px;z-index:30}
  body{padding-bottom:54px}
}
@media(max-width:520px){
  .header-inner{gap:12px;padding:10px 14px}
  .brand{font-size:15px;max-width:190px}
  .header-cta{font-size:12px;padding:10px 11px}
}