:root {
  --bg: #fbfaf7;
  --fg: #1d1d1f;
  --muted: #6b6b70;
  --line: #e5e1d8;
  --accent: #a45a3a;
  --accent-soft: #f5e9e1;
  --card: #ffffff;
  --max: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --fg: #e8e6e1;
    --muted: #a3a09a;
    --line: #2c2b28;
    --accent: #e0a07f;
    --accent-soft: #2e211b;
    --card: #1b1b1a;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fg);
}

.brand:hover { text-decoration: none; }

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

nav { display: flex; gap: 18px; font-size: 14px; }
nav a { color: var(--muted); }
nav a:hover, nav a.active { color: var(--fg); text-decoration: none; }

main { padding: 56px 0 72px; }

.hero h1 {
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

.hero p { color: var(--muted); font-size: 17px; margin: 0; max-width: 56ch; }

.meta { color: var(--muted); font-size: 13px; letter-spacing: 0.02em; }

hr { border: 0; border-top: 1px solid var(--line); margin: 44px 0; }

h2 {
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: 22px;
  margin: 0 0 18px;
}

.posts { display: grid; gap: 0; }

.post {
  display: block;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  color: inherit;
}

.post:last-child { border-bottom: 1px solid var(--line); }
.post:hover { text-decoration: none; }
.post:hover .post-title { color: var(--accent); }
.post-title { font-weight: 600; font-size: 17px; transition: color 0.15s; }
.post-desc { color: var(--muted); font-size: 14.5px; margin-top: 4px; }
.post .meta { margin-top: 6px; }

.about-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
}

.about-box h2 { margin-bottom: 10px; }
.about-box p { margin: 0 0 12px; color: var(--muted); }
.about-box p:last-child { margin-bottom: 0; }

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  padding: 26px 0 40px;
}

footer .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

article h1 {
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1.3;
  margin: 0 0 10px;
}

article h2 { font-size: 20px; margin-top: 34px; }
article p { margin: 0 0 18px; }

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

article pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  overflow: auto;
  font-size: 13.5px;
  line-height: 1.6;
}

article blockquote {
  margin: 22px 0;
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.tag {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 99px;
  margin-right: 6px;
}

@media (max-width: 560px) {
  header.site .wrap { height: 56px; }
  nav { gap: 12px; font-size: 13px; }
  main { padding: 38px 0 56px; }
  .wrap { padding: 0 18px; }
}