:root {
  --bg: #fbfaf7;
  --fg: #23211e;
  --muted: #6f6a63;
  --line: #e4dfd6;
  --accent: #8a5a2b;
  --code-bg: #f1ede6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171614;
    --fg: #e6e1d8;
    --muted: #9a938a;
    --line: #302c27;
    --accent: #d29b64;
    --code-bg: #211f1c;
  }
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site {
  padding: 56px 0 28px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

header.site .title {
  display: block;
  font-size: 27px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--fg);
  text-decoration: none;
}

header.site .tagline {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

nav.site {
  margin-top: 18px;
  font-size: 15px;
}

nav.site a {
  color: var(--muted);
  text-decoration: none;
  margin-right: 20px;
}

nav.site a:hover { color: var(--accent); }

main { padding-bottom: 64px; }

h1, h2, h3 {
  line-height: 1.35;
  font-weight: 600;
  letter-spacing: 0.01em;
}

h1 { font-size: 26px; margin: 0 0 24px; }
h2 { font-size: 20px; margin: 40px 0 14px; }
h3 { font-size: 17px; margin: 30px 0 10px; }

p { margin: 0 0 18px; }

a { color: var(--accent); }

ul, ol { margin: 0 0 18px; padding-left: 22px; }
li { margin-bottom: 8px; }

blockquote {
  margin: 24px 0;
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  margin-bottom: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.post-list li:last-child { border-bottom: 0; }

.post-list a.post-title {
  font-size: 19px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 600;
}

.post-list a.post-title:hover { color: var(--accent); }

.post-list .meta {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 6px;
  letter-spacing: 0.02em;
}

.post-list .excerpt {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 16px;
}

article .post-head {
  margin-bottom: 34px;
}

article .post-head .meta {
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.02em;
}

.back {
  display: inline-block;
  margin-top: 44px;
  font-size: 15px;
  text-decoration: none;
}

footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--accent); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  header.site { padding-top: 40px; }
  h1 { font-size: 23px; }
}