:root {
  --bg: #fdfcfa;
  --fg: #23201d;
  --muted: #8a827a;
  --line: #e8e2da;
  --accent: #b5654a;
  --card: #ffffff;
  --maxw: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16151a;
    --fg: #ece8e2;
    --muted: #9a938a;
    --line: #2b2930;
    --accent: #e0927a;
    --card: #1d1b22;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
}

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

.site-header {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 22px 10px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-size: 19px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.02em;
}

.site-header nav { display: flex; gap: 18px; }
.site-header nav a { color: var(--muted); font-size: 15px; }
.site-header nav a:hover { color: var(--accent); }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px 22px 60px;
}

.hero { padding: 40px 0 34px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: 30px; margin: 0 0 10px; font-weight: 650; letter-spacing: 0.02em; }
.hero p { margin: 0; color: var(--muted); }

.posts { padding-top: 30px; display: grid; gap: 26px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgb(0 0 0 / 6%); }

.card-cover img { display: block; width: 100%; height: 210px; object-fit: cover; }

.card-body { padding: 20px 22px 22px; }
.card-body h2 { margin: 0 0 6px; font-size: 20px; font-weight: 620; line-height: 1.5; }
.card-body h2 a { color: var(--fg); }
.card-body h2 a:hover { color: var(--accent); text-decoration: none; }

.meta { margin: 0 0 10px; color: var(--muted); font-size: 14px; }
.summary { margin: 0 0 14px; color: var(--muted); font-size: 15.5px; }

.more { font-size: 15px; }

.empty { color: var(--muted); padding: 40px 0; }

.post { padding-top: 28px; }
.post h1 { font-size: 27px; margin: 14px 0 8px; line-height: 1.45; font-weight: 650; }
.back { font-size: 15px; color: var(--muted); }
.post-cover { width: 100%; border-radius: 12px; margin: 18px 0 6px; }

.prose { margin-top: 22px; }
.prose h1, .prose h2, .prose h3 { line-height: 1.5; font-weight: 620; margin: 1.9em 0 0.6em; }
.prose h2 { font-size: 22px; }
.prose h3 { font-size: 19px; }
.prose p { margin: 0 0 1.15em; }
.prose img { max-width: 100%; border-radius: 10px; display: block; margin: 1.4em auto; }
.prose blockquote {
  margin: 1.4em 0;
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.15em; }
.prose li { margin: 0.35em 0; }
.prose code {
  background: rgb(127 127 127 / 12%);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.prose pre {
  background: rgb(127 127 127 / 10%);
  padding: 16px;
  border-radius: 10px;
  overflow-x: auto;
}
.prose pre code { background: none; padding: 0; }
.prose hr { border: none; border-top: 1px solid var(--line); margin: 2.2em 0; }

.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 26px 22px 46px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
  text-align: center;
}

@media (max-width: 480px) {
  body { font-size: 16.5px; }
  .hero { padding: 30px 0 26px; }
  .hero h1 { font-size: 25px; }
  .post h1 { font-size: 23px; }
}