:root {
  --paper: #f3ead8;
  --paper-2: #efe4cc;
  --ink: #2a2418;
  --muted: #6b6458;
  --line: #d7cbb3;
  --margin: #c45c4a;
  --mark: #3d5c4a;
  --mark-bg: #e4eee6;
  --link: #2f4f43;
}

* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 1px 1px, rgba(80, 60, 30, 0.035) 1px, transparent 0) 0 0 / 7px 7px,
    var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.75;
}

a { color: var(--link); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: currentColor; }
a:focus-visible { outline: 2px solid var(--mark); outline-offset: 3px; }

.page {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 28px 64px 72px;
  min-height: 100vh;
  position: relative;
  border-left: 1px solid var(--line);
}
.page::before {
  content: "";
  position: absolute;
  left: 48px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--margin);
  opacity: 0.55;
}
.page::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 36px;
  width: 12px;
  height: 12px;
  border: 2px solid #b9a78a;
  border-radius: 50%;
  box-shadow: 0 120px 0 #b9a78a, 0 240px 0 #b9a78a, 0 360px 0 #b9a78a;
}

header.site {
  padding: 36px 0 20px;
  border-bottom: 1px dashed var(--line);
}
.brand {
  font-family: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  font-size: 1.7rem;
  letter-spacing: 0.12em;
  color: var(--ink);
  border: 0;
}
.brand:hover { border: 0; }
.tagline {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
nav.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 16px;
  font-size: 0.92rem;
}
nav.nav a { color: var(--muted); }
nav.nav a[aria-current="page"],
nav.nav a.active { color: var(--ink); border-bottom-color: var(--ink); }

.notice {
  margin: 22px 0 0;
  padding: 12px 14px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.hero h1,
.post h1,
.list-head h1 {
  font-family: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 1.85rem;
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin: 28px 0 12px;
}
.lead { color: var(--muted); margin: 0 0 28px; }

.meta {
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.cat {
  display: inline-block;
  padding: 1px 8px;
  margin-right: 8px;
  background: var(--mark-bg);
  color: var(--mark);
  font-size: 0.78rem;
  border-radius: 2px;
}

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
}
.grid li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.grid h2 {
  font-size: 1.08rem;
  font-weight: 600;
  margin: 4px 0;
  font-family: "Songti SC", "STSong", "SimSun", serif;
}
.grid p { margin: 6px 0 0; color: var(--muted); font-size: 0.92rem; }

article.post { padding-top: 8px; }
article.post h2 {
  font-family: "Songti SC", "STSong", "SimSun", serif;
  font-size: 1.2rem;
  margin: 1.6em 0 0.5em;
}
article.post p { margin: 0.9em 0; }
article.post ul { padding-left: 1.2em; }
article.post li { margin: 0.35em 0; }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}
footer.site p { margin: 0.4em 0; }

.cats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 8px 0 32px;
}
.cats a {
  display: block;
  padding: 14px 16px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-bottom-width: 1px;
  color: var(--ink);
}
.cats a:hover { border-color: var(--mark); }
.cats small { display: block; color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

@media (max-width: 720px) {
  .page { padding: 0 18px 48px 28px; }
  .page::before { left: 10px; }
  .page::after { display: none; }
  .cats { grid-template-columns: 1fr; }
  html { font-size: 16px; }
}