:root {
  --bg: #ffffff;
  --ink: #111111;
  --muted: #777777;
  --line: #e2e2e2;
  --soft: #f6f6f6;
  --max: 760px;
}

* { box-sizing: border-box; }

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

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--ink); }

.top { border-bottom: 1px solid var(--ink); }
.top-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.brand { font-size: 17px; font-weight: 700; letter-spacing: -.2px; }
.top-brand { display: flex; align-items: center; gap: 10px; }
.top-brand .avatar { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); }
.top nav { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.top nav a { color: var(--muted); min-width: 0; overflow-wrap: anywhere; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 36px 22px 60px; }

.row { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.row:last-of-type { border-bottom: 0; }
.no {
  font-family: "SF Mono", Consolas, monospace;
  font-size: 12px;
  color: var(--muted);
  padding-top: 4px;
  min-width: 24px;
}
.row-body { flex: 1; min-width: 0; }

.meta {
  margin: 0 0 4px;
  font-family: "SF Mono", Consolas, monospace;
  font-size: 11px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: var(--muted);
}
.meta a { color: var(--muted); }

.row h2 { margin: 0 0 6px; font-size: 19px; line-height: 1.45; font-weight: 600; letter-spacing: -.2px; }
.excerpt { margin: 0; color: #555; font-size: 14px; }

.pager { display: flex; justify-content: space-between; margin-top: 30px; font-family: "SF Mono", Consolas, monospace; font-size: 12px; letter-spacing: 1px; color: var(--muted); }

.page-head { padding-bottom: 20px; border-bottom: 1px solid var(--ink); margin-bottom: 6px; }
.kicker { margin: 0 0 8px; font-family: "SF Mono", Consolas, monospace; font-size: 11px; letter-spacing: 2px; color: var(--muted); }
.page-head h1 { margin: 0 0 6px; font-size: 28px; letter-spacing: -.6px; }
.lede { margin: 0; font-family: "SF Mono", Consolas, monospace; font-size: 11px; color: var(--muted); letter-spacing: .6px; }

.post-head { padding-bottom: 18px; border-bottom: 1px solid var(--ink); margin-bottom: 26px; }
.post-head h1 { margin: 8px 0 0; font-size: 30px; line-height: 1.3; letter-spacing: -.8px; }

.cover { width: 100%; margin: 0 0 24px; }

.toc { border-left: 2px solid var(--ink); padding: 4px 0 4px 14px; margin: 0 0 28px; }
.toc a { display: block; font-size: 13px; color: #555; padding: 2px 0; }
.toc a.toc-l3 { padding-left: 14px; font-size: 12px; color: var(--muted); }

.content h2, .content h3, .content h4 { margin: 34px 0 10px; line-height: 1.4; letter-spacing: -.3px; }
.content h2 { font-size: 22px; }
.content h3 { font-size: 18px; }
.content p { margin: 0 0 18px; }
.content ul, .content ol { margin: 0 0 18px; padding-left: 22px; }

.content blockquote {
  margin: 22px 0;
  padding: 10px 16px;
  background: var(--soft);
  border-left: 3px solid var(--ink);
  color: #444;
}

.content img { max-width: 100%; }
.content code { font-family: "SF Mono", Consolas, monospace; font-size: .86em; background: var(--soft); padding: 2px 5px; }
.content pre { background: var(--soft); border: 1px solid var(--line); padding: 14px; overflow-x: auto; line-height: 1.55; }
.content pre code { background: none; padding: 0; font-size: 13px; }
.content hr { border: 0; border-top: 1px solid var(--line); margin: 30px 0; }
.content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.content th, .content td { border: 1px solid var(--line); padding: 7px 9px; text-align: left; }
.content th { background: var(--soft); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; font-family: "SF Mono", Consolas, monospace; font-size: 11px; color: var(--muted); }
.tags a { color: var(--muted); }

.adjacent { display: flex; justify-content: space-between; gap: 16px; margin-top: 34px; padding-top: 16px; border-top: 1px solid var(--ink); font-size: 13px; }

.year { margin-bottom: 24px; }
.year h2 { margin: 24px 0 8px; font-family: "SF Mono", Consolas, monospace; font-size: 13px; letter-spacing: 1px; color: var(--muted); font-weight: 500; }
.archive-item { display: flex; gap: 16px; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.archive-date { font-family: "SF Mono", Consolas, monospace; font-size: 11px; color: var(--muted); min-width: 78px; padding-top: 3px; }

.empty { font-family: "SF Mono", Consolas, monospace; font-size: 12px; color: var(--muted); padding: 30px 0; }

.foot {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px 22px 36px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  font-family: "SF Mono", Consolas, monospace;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--muted);
  text-transform: uppercase;
}

@media (max-width: 520px) {
  .wrap { padding: 26px 16px 44px; }
  .post-head h1 { font-size: 24px; }
  .page-head h1 { font-size: 23px; }
  .row { gap: 12px; }
}

/* 分类 / 标签总览 */
.term-list { display: flex; flex-direction: column; }
.term { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.term em { font-style: normal; font-family: "SF Mono", Consolas, monospace; font-size: 11px; color: var(--muted); }