:root{--bg:#f7f8f5;--card:#fff;--ink:#243a34;--muted:#66756d;--line:#e3e8df;--accent:#204e40;--accent-soft:#edf3e6;--link:#2f6b52}
@media (prefers-color-scheme:dark){:root{--bg:#0f1c19;--card:#152521;--ink:#e3ece6;--muted:#9aaba2;--line:#243832;--accent:#c5ed9e;--accent-soft:#1d3029;--link:#a8d98a}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--link)}
.top{border-bottom:1px solid var(--line);background:var(--card)}
.top-in,.wrap{max-width:780px;margin:0 auto;padding:0 16px}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:12px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:20px;letter-spacing:-.5px}
.brand img{width:32px;height:32px;border-radius:8px}
.nav{display:flex;gap:14px;font-size:14px;flex-wrap:wrap;justify-content:flex-end}
.nav a{text-decoration:none;color:var(--muted)}
.nav a[aria-current]{color:var(--ink);font-weight:600}
.wrap{padding-top:36px;padding-bottom:56px}
h1{font-size:clamp(26px,5vw,34px);line-height:1.25;letter-spacing:-.6px;margin:0 0 8px}
.meta{color:var(--muted);font-size:14px;margin:0 0 28px}
h2{font-size:19px;margin:34px 0 8px;letter-spacing:-.2px}
h3{font-size:16px;margin:20px 0 4px}
p,li{color:var(--ink)}
ul{padding-left:22px}
li{margin:4px 0}
.box{background:var(--accent-soft);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:18px 0}
table{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--accent-soft)}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:13px}
footer .wrap{padding-top:18px;padding-bottom:28px}