/* Shared layout */
:root{--brand:#0e2940;--gold:#c79d16}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial}
h1,h2,h3{color:#0f2740;font-weight:800;letter-spacing:.2px}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid #eef1f4;z-index:100}
.site-header .wrap{max-width:1200px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.brand img{height:72px;display:block}
.main-nav{display:flex;gap:28px}
.main-nav a{font-weight:600;text-decoration:none;color:#0f2740;opacity:.95}
.main-nav a.active{background:#f6f0df;padding:8px 12px;border-radius:10px}
.site-footer{background:#0b293f;color:#fff;padding:26px 24px;margin-top:80px}
.site-footer .wrap{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.site-footer a{color:#fff;opacity:.9;margin-right:16px;text-decoration:none}
a{color:#0f2740;text-underline-offset:3px;text-decoration-thickness:2px}
a:hover{opacity:.9;text-decoration-color:var(--gold)}
.tag{display:inline-block;padding:6px 10px;border-radius:999px;background:#f6f8fb;border:1px solid #e5e9ef;color:#3a4a5e;font-weight:600;font-size:13px}