:root {
  --bg: #fbfaf8;
  --text: #1c1b1a;
  --muted: #6f6b66;
  --line: #e6e2dc;
  --accent: #e8590c;
  --hover: #f2eee8;
  --code-bg: #f1ede7;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151413; --text: #ece9e4; --muted: #9a958e; --line: #2c2a27;
    --accent: #ff8a3d; --hover: #1f1d1b; --code-bg: #211f1d;
  }
}
:root[data-theme="dark"] {
  --bg: #151413; --text: #ece9e4; --muted: #9a958e; --line: #2c2a27;
  --accent: #ff8a3d; --hover: #1f1d1b; --code-bg: #211f1d;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 17px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 680px; margin: 0 auto; padding: 28px 16px 64px; }
a { color: inherit; text-decoration: none; }

.top { display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: var(--muted); margin-bottom: 72px; }
.top a:hover { color: var(--accent); }
.brand { font-weight: 600; color: var(--text); }

.hello { color: var(--accent); font-weight: 600; font-size: 15px; letter-spacing: .02em; }
h1 { font-size: clamp(32px, 7vw, 44px); line-height: 1.2; letter-spacing: -.02em; margin: 8px 0 16px; }
.tagline { font-size: 19px; color: var(--text); }
.bio { color: var(--muted); margin-top: 12px; }

.links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 24px; }
.links a { font-size: 15px; border-bottom: 1px solid var(--line); padding-bottom: 1px; transition: border-color .15s, color .15s; }
.links a:hover { color: var(--accent); border-color: var(--accent); }

section { margin-top: 72px; }
h2 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin-bottom: 12px; }

.post-item { display: block; margin: 0 -14px; padding: 14px; border-radius: 10px; transition: background .15s; }
.post-item:hover { background: var(--hover); }
.row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.title { font-weight: 600; }
.meta { color: var(--muted); font-size: 14px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.desc { color: var(--muted); font-size: 15px; margin-top: 2px; }
.empty { color: var(--muted); }

/* article */
.post-head { margin-bottom: 36px; }
.post-title { margin-bottom: 8px; }
.back-wrap { margin-top: 56px; }
.back { color: var(--muted); font-size: 15px; }
.back:hover { color: var(--accent); }

.prose > * + * { margin-top: 1.1em; }
.prose h2, .prose h3, .prose h4 { text-transform: none; letter-spacing: -.01em; color: var(--text); line-height: 1.35; margin-top: 2em; margin-bottom: -.2em; }
.prose h2 { font-size: 24px; }
.prose h3 { font-size: 20px; }
.prose h4 { font-size: 17px; }
.prose a { color: var(--accent); border-bottom: 1px solid transparent; }
.prose a:hover { border-color: var(--accent); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: .3em; }
.prose blockquote { border-left: 3px solid var(--line); padding-left: 1em; color: var(--muted); }
.prose code { font: .88em/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--code-bg); padding: .15em .4em; border-radius: 5px; }
.prose pre { background: var(--code-bg); padding: 16px 18px; border-radius: 10px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; font-size: 14px; }
.prose img { max-width: 100%; height: auto; border-radius: 8px; display: block; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; }

footer { margin-top: 88px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 14px; }
#theme { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 999px; padding: 4px 12px; font: inherit; cursor: pointer; }
#theme:hover { color: var(--text); }

@media (max-width: 480px) {
  .top { margin-bottom: 48px; }
  .row { flex-direction: column; gap: 0; }
}