*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#F7F8FA;--surface:#fff;--ink:#0F1B2D;--muted:#4A5568;--line:rgba(15,27,45,.14);--accent:#1B365D}
@media (prefers-color-scheme:dark){:root{--bg:#0C121C;--surface:#131B28;--ink:#EAEFF7;--muted:#A7B3C6;--line:rgba(234,239,247,.16);--accent:#9DB8E4}}
body{background:var(--bg);color:var(--ink);font:17px/1.65 ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.bar{border-bottom:1px solid var(--line);background:var(--surface)}
.bar .in{width:min(860px,100% - 40px);margin-inline:auto;height:68px;display:flex;align-items:center;justify-content:space-between}
.brand{display:block;height:40px;width:150px;overflow:hidden;position:relative;background:#fff;border-radius:10px}
.brand img{position:absolute;width:150px;height:150px;left:0;top:-55px}
.back{font-size:15px;text-decoration:none;font-weight:500}
main{width:min(860px,100% - 40px);margin:0 auto;padding:56px 0 80px}
h1{font-size:clamp(34px,5vw,52px);line-height:1.08;letter-spacing:-.03em;margin-bottom:10px}
.meta{color:var(--muted);font-size:15px;margin-bottom:36px}
h2{font-size:22px;letter-spacing:-.01em;margin:36px 0 10px}
p,li{color:var(--muted);margin-bottom:12px}
ul{padding-left:22px;margin-bottom:12px}
strong{color:var(--ink)}
code{font-size:.92em}
.note{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:18px 22px;margin:0 0 28px}
footer{border-top:1px solid var(--line);padding:28px 0 48px;font-size:14px;color:var(--muted)}
footer .in{width:min(860px,100% - 40px);margin-inline:auto;display:flex;flex-wrap:wrap;gap:8px 22px}
footer a{color:var(--ink)}