:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body { font-family: -apple-system, "PingFang SC", "Helvetica Neue", sans-serif; max-width: 720px; margin: 2rem auto; padding: 0 1rem; line-height: 1.7; }
header a { font-weight: 700; text-decoration: none; font-size: 1.2rem; }
footer { margin-top: 3rem; border-top: 1px solid #8884; padding-top: 1rem; font-size: .85rem; opacity: .7; }
a { color: #0a7; }
.post-list { list-style: none; padding: 0; }
.post-list li { padding: .4rem 0; border-bottom: 1px dashed #8883; }
time { opacity: .6; font-size: .85rem; }