:root {
  --paper: #f3eee4;
  --ink: #2b2620;
  --ink-soft: #6d635a;
  --ink-mute: #9a8f84;
  --line: #e5dccc;
  --accent: #a8452f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(120% 60% at 50% 0%, #fbf7ee 0%, rgba(251, 247, 238, 0) 60%), var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 26px 18px 70px; }
.top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.top a { color: var(--accent); text-decoration: none; font-size: 13.5px; }
.top span { font-size: 12px; color: var(--ink-mute); }
h1 { font-size: 22px; letter-spacing: 2px; margin: 0 0 6px; }
.sub { font-size: 12.5px; color: var(--ink-mute); margin: 0 0 22px; }
.card { background: #fffdf8; border: 1px solid var(--line); border-radius: 14px; padding: 20px 18px; }
h2 { font-size: 15px; margin: 26px 0 8px; padding-left: 10px; border-left: 3px solid var(--accent); letter-spacing: .5px; }
h2:first-of-type { margin-top: 4px; }
p, li { font-size: 13.5px; color: var(--ink-soft); }
ul { padding-left: 20px; margin: 8px 0; }
li { margin: 5px 0; }
strong { color: var(--ink); font-weight: 600; }
.ph { color: var(--accent); background: #f8ece7; padding: 1px 4px; border-radius: 3px; font-size: 13px; }
table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 13px; }
th, td { border: 1px solid #e8e0d2; padding: 8px 10px; text-align: left; vertical-align: top; color: var(--ink-soft); }
th { background: #f2ece1; color: #4a423a; font-weight: 600; white-space: nowrap; }
.note { background: #f5efe3; border-radius: 8px; padding: 10px 12px; font-size: 12.5px; color: var(--ink-soft); margin: 12px 0; }
footer { margin-top: 30px; font-size: 11.5px; color: var(--ink-mute); }
footer a { color: var(--ink-mute); margin-right: 12px; text-decoration: none; }