:root{--ink:#1b2430;--muted:#556070;--bg:#fff;--soft:#f3f6fa;--line:#d9e0e8;--brand:#0b5cad;--brand-d:#084a8c;--brand-l:#e6f0fb;--accent:#f0a000;--warn:#fff6e0}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:46rem;margin:0 auto;padding:0 max(1rem,env(safe-area-inset-left))}
header.site{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:2}
header.site .wrap{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;padding-top:.6rem;padding-bottom:.6rem}
header.site a.brand{display:inline-flex;align-items:center;gap:.7rem;font-weight:700;font-size:1.2rem;color:var(--ink);text-decoration:none;line-height:1.15}
header.site a.brand img{width:44px;height:44px;flex:none}
header.site a.brand small{display:block;font-weight:400;font-size:.78rem;color:var(--muted)}
header.site nav{display:flex;flex-wrap:wrap;gap:.25rem .9rem;font-size:.92rem;margin-left:auto}
header.site nav a{color:var(--ink);text-decoration:none;padding:.15rem 0;border-bottom:2px solid transparent}
header.site nav a:hover,header.site nav a[aria-current]{border-bottom-color:var(--brand);color:var(--brand)}
a{color:var(--brand)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
h1{font-size:2.1rem;line-height:1.2;margin:2rem 0 .75rem;letter-spacing:-.01em}
h2{font-size:1.4rem;line-height:1.25;margin:2.25rem 0 .5rem}
h3{font-size:1.1rem;margin:1.5rem 0 .25rem}
.lead{font-size:1.15rem;color:var(--muted)}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:.75rem 1.25rem;border-radius:.6rem;text-decoration:none;font-weight:600;margin:.25rem .5rem .25rem 0;box-shadow:0 1px 2px rgba(11,92,173,.25)}
.btn:hover{background:var(--brand-d)}
.btn.alt{background:#fff;color:var(--brand);border:1px solid var(--brand);box-shadow:none}
ol li,ul li{margin:.3rem 0}
table{border-collapse:collapse;width:100%;font-size:.95rem;margin:1rem 0}
th,td{border:1px solid var(--line);padding:.5rem .6rem;text-align:left;vertical-align:top}
th{background:var(--soft)}
td:last-child{background:var(--brand-l)}
.tablewrap{overflow-x:auto}
code{background:var(--soft);padding:.05em .3em;border-radius:.25rem;font-size:.92em}
.note{background:var(--warn);padding:.75rem 1rem;margin:1.25rem 0;border-radius:.4rem}
details{border-bottom:1px solid var(--line);padding:.6rem 0}
summary{cursor:pointer;font-weight:600;padding:.2rem 0}
summary:hover{color:var(--brand)}
footer.site{margin-top:3rem;border-top:1px solid var(--line);background:var(--soft);font-size:.9rem;color:var(--muted)}
footer.site .wrap{padding-top:1.25rem;padding-bottom:2rem}
footer.site a{margin-right:1rem}
.disc{font-size:.85rem}
@media(max-width:480px){body{font-size:16px}h1{font-size:1.65rem}header.site nav{margin-left:0}}
@media print{header.site,footer.site,.btn{display:none}}
figure{margin:1.25rem 0}
figure img,figure video{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:.6rem;background:#fff}
figure.video video{background:#112038}
figcaption{font-size:.9rem;color:var(--muted);margin-top:.4rem}
.gallery{display:grid;gap:1rem;margin:1.5rem 0}
.gallery figure{margin:0}
@media(min-width:700px){.gallery{grid-template-columns:1fr 1fr}.gallery figure:first-child{grid-column:1/-1}}