:root { --paper:#F6F1E6; --ink:#1A1A1A; --ink2:#5A544A; --accent:#BF3B2B; }
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper); color:var(--ink); line-height:1.85; padding:48px 24px 80px; }
main { max-width:720px; margin:0 auto; }
h1 { font-size:28px; margin-bottom:6px; }
h2 { font-size:18px; margin:32px 0 10px; padding-left:10px; border-left:4px solid var(--accent); }
p, li { font-size:15px; color:var(--ink2); margin-bottom:10px; }
ul { padding-left:22px; }
a { color:var(--accent); }
.meta { font-size:13px; color:var(--ink2); margin-bottom:28px; }
.summary { background:#EEE8DA; border-radius:12px; padding:16px 18px; margin-bottom:8px; }
footer { max-width:720px; margin:48px auto 0; font-size:13px; color:var(--ink2);
  border-top:1px solid #E0D8C8; padding-top:16px; }
nav { max-width:720px; margin:0 auto 32px; font-size:14px; }
nav a { margin-right:16px; }