/* 手写单文件样式，无构建链 */
:root {
  --bg: #fbfbfa;
  --fg: #1f2328;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #1f6feb;
  --card: #ffffff;
  --radius: 10px;
  --wrap: 880px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

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

.wrap { width: min(var(--wrap), 92vw); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand { font-size: 18px; font-weight: 700; color: var(--fg); }

.nav { display: flex; gap: 18px; font-size: 14px; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--fg); }

.section { margin: 44px 0; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.section-title {
  font-size: 15px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 16px;
}

.count { color: var(--muted); font-size: 13px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
}

.chip {
  background: #eef2ff;
  color: #3730a3;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
}

.pin { color: #b45309; }

.card-title { font-size: 18px; margin: 10px 0 8px; line-height: 1.4; }
.card-title a { color: var(--fg); }

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

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.empty {
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--muted);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: #f3f4f6;
  padding: 1px 5px;
  border-radius: 4px;
}

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  font-size: 14px;
}

.pager .disabled { color: #c4c8ce; }
.page-info { color: var(--muted); font-size: 13px; }

.error-page { text-align: center; padding: 40px 0; }
.error-page h1 { font-size: 64px; margin: 0; color: var(--line); }

.button {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding: 24px 0;
  color: var(--muted);
  font-size: 13px;
}