:root{--navy:#071323;--ink:#0a203d;--muted:#5b6f86;--paper:#f7faff;--line:#dce7f3;--blue:#0967ed;--sky:#80c7ff}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--blue)}
a:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.top{background:var(--navy);padding:18px max(20px,calc((100vw - 820px)/2));display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo{color:#fff;text-decoration:none;font-weight:900;font-size:22px;letter-spacing:-.02em}
.logo span{color:var(--sky)}
.top a.back{color:#dbe8f6;font-size:14px;font-weight:600}
main{max-width:820px;margin:0 auto;padding:36px 20px 64px}
h1{font-size:clamp(30px,5vw,42px);line-height:1.1;letter-spacing:-.03em;margin:0 0 8px}
.updated{color:var(--muted);font-size:14px;margin:0 0 28px}
h2{font-size:21px;line-height:1.25;margin:36px 0 10px;padding-top:12px;border-top:1px solid var(--line)}
h3{font-size:17px;margin:22px 0 6px}
p,li{max-width:72ch}
ul,ol{padding-left:22px}
li{margin:4px 0}
table{border-collapse:collapse;width:100%;margin:12px 0 18px;font-size:14px;background:#fff}
th,td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{background:#eaf2fb}
.scroll{overflow-x:auto}
.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:16px 0}
.toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px 14px 36px;margin:0 0 24px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px;padding:24px 20px}
.footer-inner{max-width:820px;margin:auto;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-inner a{color:var(--muted)}