:root{--navy:#0d2138;--blue:#0f5f9a;--cyan:#1f86c7;--ink:#1c2b39;--muted:#5e6c78;--line:#dce5eb;--paper:#fff;--soft:#f4f8fb;--accent:#ffb23f;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#eef3f7;line-height:1.75}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.top{background:linear-gradient(120deg,var(--navy),#123f66);color:white}.nav{max-width:var(--max);margin:auto;padding:18px 24px;display:flex;justify-content:space-between;align-items:center}.brand{font-weight:800;font-size:23px;letter-spacing:.7px}.brand small{display:block;font-size:11px;font-weight:500;opacity:.75;letter-spacing:1.5px}.nav a{color:white;margin-left:22px;font-size:14px}.hero{max-width:var(--max);margin:auto;padding:72px 24px 68px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:2px;color:#9dd7ff;font-weight:800}.hero h1{font-size:48px;line-height:1.15;max-width:900px;margin:14px 0 20px}.hero p{max-width:820px;color:#d7e6f2;font-size:19px}.meta{font-size:13px;color:#9fb4c4;margin-top:28px}.layout{max-width:var(--max);margin:34px auto;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;padding:0 22px}.article,.sidebox{background:white;border:1px solid var(--line);box-shadow:0 7px 30px rgba(29,52,72,.07)}.article{padding:52px 58px}.article h2{font-size:30px;line-height:1.3;margin:46px 0 14px;color:var(--navy);border-bottom:1px solid var(--line);padding-bottom:10px}.article h3{font-size:22px;margin:30px 0 8px;color:#173f61}.article p{margin:0 0 18px}.lead{font-size:20px;color:#344b5f}.toc{background:var(--soft);border-left:5px solid var(--cyan);padding:20px 25px;margin:28px 0}.toc strong{display:block;margin-bottom:8px}.toc ol{margin:0;padding-left:20px}.note{background:#fff7e8;border-left:5px solid var(--accent);padding:18px 22px;margin:24px 0}.product-link{font-weight:700}.table-wrap{overflow:auto;margin:22px 0}table{border-collapse:collapse;width:100%;font-size:15px}th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}th{background:#eaf3f9;color:var(--navy)}ul,ol{padding-left:24px}.sidebox{padding:22px;position:sticky;top:20px;height:max-content}.sidebox h3{margin-top:0;color:var(--navy)}.sidebox a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}.cta{background:linear-gradient(135deg,#0d3556,#0e6da9);color:white;padding:28px;margin:38px 0}.cta h3{color:white;margin-top:0}.cta a{color:white;text-decoration:underline;font-weight:700}.breadcrumbs{font-size:13px;color:#73818c;margin-bottom:24px}.faq details{border-bottom:1px solid var(--line);padding:15px 0}.faq summary{font-weight:700;cursor:pointer}.footer{background:#0b1a29;color:#becbd6;padding:34px 20px;text-align:center;margin-top:45px}.footer strong{color:white}.subhero{background:#102d48;color:white;padding:48px 24px}.subhero .inner{max-width:900px;margin:auto}.subhero h1{font-size:40px;line-height:1.2;margin:10px 0}.subhero p{color:#c5d6e4}.article-only{max-width:900px;margin:32px auto;padding:0 20px}.related{background:var(--soft);padding:20px 24px;margin-top:38px}.related a{font-weight:700}.tag{display:inline-block;background:#dfeef8;color:#155681;padding:5px 10px;border-radius:20px;font-size:12px;font-weight:700;margin-right:7px}
@media(max-width:860px){.layout{grid-template-columns:1fr}.sidebox{position:static}.hero h1{font-size:37px}.article{padding:34px 25px}.nav .links{display:none}.subhero h1{font-size:32px}}