:root{--pp-bg:#f5f5f5;--pp-fg:#171717;--pp-card:#ffffff;--pp-card-hover:#fafafa;--pp-border:#e5e5e5;--pp-muted:#737373;--pp-muted2:#a3a3a3;--pp-link:#2563eb}
@media(prefers-color-scheme:dark){:root{--pp-bg:#0a0a0a;--pp-fg:#f5f5f5;--pp-card:#171717;--pp-card-hover:#1f1f1f;--pp-border:#333333;--pp-muted:#a3a3a3;--pp-muted2:#737373;--pp-link:#60a5fa}}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;margin:0 auto;max-width:64rem;padding:1.5rem;color:var(--pp-fg);background:var(--pp-bg)}
h1{font-size:1.375rem;margin:0 0 .25rem;letter-spacing:-.01em}
p.sub{color:var(--pp-muted);font-size:.875rem;margin:0 0 1.25rem}
p.sub a{color:var(--pp-link);text-decoration:none}
p.sub a:hover{text-decoration:underline}
nav{display:flex;flex-wrap:wrap;gap:.375rem;margin-bottom:1.5rem}
nav a{display:inline-block;min-width:1.75rem;text-align:center;padding:.2rem .45rem;border:1px solid var(--pp-border);border-radius:.375rem;text-decoration:none;color:var(--pp-link);font-size:.85rem;background:var(--pp-card)}
nav a:hover{background:var(--pp-card-hover)}
section{background:var(--pp-card);border:1px solid var(--pp-border);border-radius:.75rem;padding:1rem 1.25rem;margin-bottom:1rem}
h2{font-size:1.05rem;border-bottom:1px solid var(--pp-border);padding-bottom:.3rem;margin:0 0 .6rem}
ul{list-style:none;margin:0;padding:0}
li{margin:.4rem 0;font-size:.95rem;break-inside:avoid}
ul a{color:var(--pp-link);text-decoration:none}
ul a:hover{text-decoration:underline}
ul.dir{columns:3;column-gap:2rem}
ul.months>li{border:1px solid var(--pp-border);background:var(--pp-card);border-radius:.75rem;padding:.75rem 1rem;margin:.5rem 0}
ul.months a{font-weight:600}
ul.top{margin:.4rem 0 0;padding-left:1.1rem}
footer{margin-top:2.5rem;color:var(--pp-muted2);font-size:.75rem}
@media(max-width:48rem){body{padding:1rem}ul{columns:1}}