:root{--bg:#ffffff;--fg:#1b2029;--muted:#5b6472;--card:#f4f6f8;--line:#dfe3e8;--accent:#1f9d6b;--link:#0b7a53}
@media (prefers-color-scheme:dark){:root{--bg:#12151a;--fg:#edeff2;--muted:#8d96a3;--card:#1b2029;--line:#2b3240;--accent:#3ed598;--link:#3ed598}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
header.top{border-bottom:1px solid var(--line)}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
.wrap.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--fg);text-decoration:none}
.brand img{width:34px;height:34px;border-radius:8px}
nav a{margin-left:14px;font-size:15px;color:var(--link);text-decoration:none}
nav a:hover{text-decoration:underline}
main{padding:32px 0 56px}
h1{font-size:32px;line-height:1.2;margin:0 0 6px}
h2{font-size:21px;margin:34px 0 8px}
p,li{margin:8px 0}
ul{padding-left:22px}
.meta{color:var(--muted);font-size:15px;margin:0 0 22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:18px 0}
a{color:var(--link)}
table{border-collapse:collapse;width:100%;font-size:15px;margin:12px 0}
th,td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{background:var(--card)}
.hero{padding:28px 0 8px}
.hero p.lead{font-size:20px;color:var(--muted);margin:10px 0 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px;padding:22px 0 40px}
@media (max-width:560px){h1{font-size:27px}table{display:block;overflow-x:auto}}