:root{color-scheme:light;--ink:#16212b;--muted:#5d6b78;--brand:#0e1a24;--line:#dce3e8;--paper:#fff;--soft:#f5f7f9;--link:#0969a8}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-text-size-adjust:100%}
header{background:var(--brand);color:#fff;padding:22px 20px}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
header .wrap{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:0}
.brand{color:#fff;text-decoration:none;font-size:20px;font-weight:700;letter-spacing:.2px}
nav a{color:#d6e6f1;text-decoration:none;margin-left:16px;font-size:14px}
main{padding:42px 0 54px}
h1{font-size:32px;line-height:1.2;margin:0 0 8px}
h2{font-size:22px;line-height:1.3;margin:38px 0 10px}
h3{font-size:18px;margin:24px 0 6px}
p,li{max-width:75ch}
.meta{color:var(--muted);margin:0 0 28px}
.notice{background:var(--soft);border-left:4px solid #5c7c91;padding:14px 16px;border-radius:4px}
a{color:var(--link)}
table{width:100%;border-collapse:collapse;margin:14px 0 22px;font-size:15px}
th,td{text-align:left;vertical-align:top;border:1px solid var(--line);padding:10px}
th{background:var(--soft)}
footer{border-top:1px solid var(--line);padding:28px 0 42px;color:var(--muted);font-size:14px}
footer a{margin-right:14px}
.lang{border-top:1px solid var(--line);margin-top:46px;padding-top:34px}
@media(max-width:600px){h1{font-size:27px}nav{width:100%}nav a{margin:0 14px 0 0}table{display:block;overflow-x:auto}}