:root { color-scheme: light; }
body {
    margin: 0;
    color: #1d1d1d;
    background: #f7f7f5;
    font: 18px/1.7 "Iowan Old Style", "Palatino Linotype", Palatino, "Noto Serif CJK SC", serif;
}
header, main { max-width: 42rem; margin: 0 auto; padding: 1.25rem 1rem 2.5rem; }
header a { color: inherit; font-weight: 700; text-decoration: none; }
h1 { font-size: 1.9rem; line-height: 1.3; margin: 0.4rem 0 1rem; }
h2 { font-size: 1.3rem; margin: 1.6rem 0 0.6rem; }
p, li { margin: 0.4rem 0; }
ul, ol { padding-left: 1.3rem; }
a { color: #0b57d0; }
pre {
    overflow: auto;
    padding: 0.8rem 1rem;
    background: #ececec;
    border-radius: 4px;
}
code { font-family: ui-monospace, "Cascadia Code", "Source Code Pro", monospace; font-size: 0.92rem; }
table { border-collapse: collapse; width: 100%; margin: 0.8rem 0; }
th, td { border: 1px solid #ccc; padding: 0.4rem 0.6rem; text-align: left; vertical-align: top; }
.index li { margin: 0.7rem 0; }