:root {
  --bg: #faf7f2; --text: #1e1914; --text2: #5c5248; --line: #e6ded3; --accent: #b4682a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14110e; --text: #f4ede3; --text2: #b3a899; --line: #2e2721; --accent: #e8a25c; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Noto Sans Thai", sans-serif;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
.brand { font-weight: 600; letter-spacing: -0.3px; margin: 0 0 32px; }
.brand a { color: var(--text); text-decoration: none; }
h1 { font-size: 32px; line-height: 1.2; letter-spacing: -0.5px; margin: 0 0 4px; }
h2 { font-size: 20px; margin: 36px 0 8px; letter-spacing: -0.2px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
.meta { color: var(--text2); margin: 0 0 24px; font-size: 15px; }
.summary { border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
p, li { color: var(--text); }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }
a { color: var(--accent); }
.foot { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--text2); font-size: 15px; }