:root {
  color-scheme: light;
  --paper: #fbfaf7;
  --ink: #1e211d;
  --muted: #71766d;
  --line: #e3dfd5;
  --accent: #8a5a3b;
  --code: #f2efe8;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.9 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent); }

.wrap { max-width: 780px; margin: 0 auto; padding: 0 28px; }

header {
  padding: 46px 0 24px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: Georgia, "Songti SC", "Noto Serif CJK SC", serif;
  font-size: 23px;
  letter-spacing: 0.08em;
  line-height: 1.2;
}
.brand small {
  display: block;
  margin-top: 8px;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  font-weight: 400;
}

nav { display: flex; gap: 22px; padding-bottom: 3px; }
nav a { font-size: 14px; color: var(--muted); }
nav a[aria-current="page"] { color: var(--ink); }

main { min-height: 55vh; }

.intro { padding: 62px 0 44px; }
.intro p {
  margin: 0;
  max-width: 600px;
  font-size: 17px;
  color: var(--muted);
}
.intro .lead {
  font-family: Georgia, "Songti SC", "Noto Serif CJK SC", serif;
  font-size: clamp(27px, 4.6vw, 38px);
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-bottom: 22px;
}

.section-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

ul.posts { list-style: none; margin: 8px 0 0; padding: 0; }
ul.posts li { border-bottom: 1px solid var(--line); }
ul.posts a {
  display: flex;
  align-items: baseline;
  gap: 22px;
  padding: 20px 0;
}
ul.posts time {
  flex: 0 0 96px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
ul.posts .title { font-size: 16px; }
ul.posts .title span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}
ul.posts a:hover .title { color: var(--accent); }

.about-preview {
  margin: 46px 0 0;
  padding: 28px 0 10px;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  border-top: 1px solid var(--line);
}
.about-preview h2 {
  margin: 0;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
}
.about-preview p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }

article.post { padding: 56px 0 20px; }
article.post h1 {
  font-family: Georgia, "Songti SC", "Noto Serif CJK SC", serif;
  font-size: clamp(28px, 4.4vw, 36px);
  line-height: 1.5;
  font-weight: 600;
  margin: 0 0 14px;
}
article.post .meta {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.07em;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}
article.post h2 {
  font-size: 19px;
  font-weight: 600;
  margin: 36px 0 12px;
}
article.post p { margin: 0 0 18px; }
article.post blockquote {
  margin: 26px 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--accent);
  color: var(--muted);
}
article.post code {
  background: var(--code);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.88em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
article.post ul { padding-left: 22px; margin: 0 0 18px; }
article.post li { margin-bottom: 6px; }

.post-nav {
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.page { padding: 56px 0 20px; }
.page h1 {
  font-family: Georgia, "Songti SC", "Noto Serif CJK SC", serif;
  font-size: 30px;
  font-weight: 600;
  margin: 0 0 26px;
}
.page p { margin: 0 0 18px; color: var(--muted); }
.page p strong { color: var(--ink); font-weight: 600; }

footer {
  margin-top: 60px;
  padding: 24px 0 46px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@media (max-width: 620px) {
  header { flex-direction: column; align-items: flex-start; gap: 18px; }
  nav { gap: 18px; }
  .intro { padding: 46px 0 34px; }
  ul.posts a { flex-direction: column; gap: 6px; padding: 18px 0; }
  ul.posts time { flex: none; }
  .about-preview { grid-template-columns: 1fr; gap: 12px; }
  article.post { padding-top: 42px; }
}