:root{--blue:#2c7da0;--blue-dark:#0d3045;--gold:#d9b15f;--cream:#f7fafc;--text:#132330;--muted:#64748b;--line:#dfe9ef}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);background:var(--cream);line-height:1.75}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;display:block}.container{width:min(1080px,92%);margin:auto}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:900;color:var(--blue-dark);font-size:1.25rem}.navlinks{display:flex;gap:18px;flex-wrap:wrap;font-weight:700;font-size:.9rem}
.hero{background:linear-gradient(135deg,#071f30,#0f4160);color:#fff;padding:86px 0}.hero .kicker{color:#8bd2ee;font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem}.hero h1{font-size:clamp(2.4rem,6vw,4.6rem);line-height:1.05;margin:14px 0 20px;max-width:950px}.hero p{font-size:1.08rem;max-width:820px;color:rgba(255,255,255,.82)}.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-block;padding:13px 20px;border-radius:999px;font-weight:800}.btn-primary{background:#fff;color:var(--blue-dark)}.btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff}
main{padding:64px 0}.article{background:#fff;border:1px solid #e6eef3;border-radius:30px;padding:clamp(24px,5vw,58px);box-shadow:0 18px 55px rgba(13,48,69,.06)}.article h2{font-size:clamp(1.65rem,3vw,2.35rem);line-height:1.2;margin:46px 0 14px;color:var(--blue-dark)}.article h3{font-size:1.25rem;margin-top:28px;color:#173f57}.article p{margin:0 0 18px}.article ul{padding-left:22px}.article li{margin:8px 0}.lead{font-size:1.12rem;color:#3d5666}.toc{background:#eef7fb;border:1px solid #d8ebf4;border-radius:20px;padding:22px 24px;margin:30px 0}.toc strong{display:block;margin-bottom:8px}.note{background:#fff8e8;border-left:4px solid var(--gold);padding:18px 20px;border-radius:10px;margin:24px 0}
figure{margin:34px 0;background:#f4f8fa;border-radius:22px;overflow:hidden;border:1px solid #e1ebf0}figure img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#e7eef2}figcaption{padding:12px 16px;color:#607585;font-size:.88rem}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{border:1px solid #e2ebf0;border-radius:18px;padding:20px;background:#fbfdfe}.card h3{margin-top:0}.faq{margin-top:50px}.faq details{border-top:1px solid #e3ebef;padding:17px 0}.faq summary{cursor:pointer;font-weight:800;color:var(--blue-dark)}.faq p{padding-top:12px;color:#526879}.sourcebox{margin-top:44px;padding:20px;border-radius:18px;background:#f4f7f9;color:#566b78;font-size:.9rem}.related{margin-top:50px;padding:26px;background:#0d3045;color:#fff;border-radius:22px}.related a{color:#9ed8ef;font-weight:800}.breadcrumbs{font-size:.86rem;color:#78909c;margin-bottom:20px}.breadcrumbs a{color:#5f7c8d}
footer{margin-top:60px;background:#0b2233;color:#cdd7df;padding:46px 0}.footergrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}footer a{color:#cdd7df}@media(max-width:760px){.navlinks{display:none}.article{border-radius:0;padding:24px}.grid2,.footergrid{grid-template-columns:1fr}.hero{padding:58px 0}}