:root { color-scheme: light dark; }
body { max-width: 46rem; margin: 2.5rem auto; padding: 0 1.2rem;
       font: 15px/1.7 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif; }
h1 { font-size: 1.35rem; margin-bottom: .3rem; }
p.sub { margin-top: 0; opacity: .75; }
table { border-collapse: collapse; width: 100%; margin: 1.4rem 0; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid rgba(128,128,128,.35); }
th { font-weight: 600; white-space: nowrap; }
code { font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: .92em; word-break: break-all; }
.note { border-left: 3px solid rgba(128,128,128,.5); padding: .1rem 0 .1rem .9rem; margin: 1.4rem 0; }
.empty { padding: 1rem; opacity: .75; }
h2 { font-size: 1.05rem; margin: 1.8rem 0 .5rem; }
ol { padding-left: 1.3rem; } ol li { margin: .45rem 0; }
pre { background: rgba(128,128,128,.12); padding: .7rem .85rem; border-radius: 5px; overflow-x: auto; }