:root {
  --bg: #f7f8fa;
  --panel: #ffffff;
  --ink: #16181d;
  --muted: #5c6470;
  --line: #e2e5ea;
  --accent: #1f6feb;
  --hot: #c2410c;
  --badge: #eef2f7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a;
    --panel: #191c23;
    --ink: #e9edf3;
    --muted: #97a1b0;
    --line: #2a2f39;
    --accent: #79b8ff;
    --hot: #fb923c;
    --badge: #232833;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

a:hover {
  text-decoration: underline;
}

.site-header,
main,
.site-footer {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  padding-top: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.brand span {
  color: var(--accent);
}

.tagline {
  margin: 4px 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-bottom: 14px;
  font-size: 14px;
}

.site-nav .ghost {
  color: var(--muted);
}

.lede {
  padding-top: 24px;
}

.lede h1 {
  margin: 0 0 6px;
  font-size: 26px;
  letter-spacing: -0.01em;
}

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

.day-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.day-nav a {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
}

.day-nav a.active {
  border-color: var(--accent);
  color: var(--accent);
}

.category {
  margin-top: 30px;
}

.category h2 {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 12px;
  font-size: 18px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.category .count {
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
}

.cards {
  display: grid;
  gap: 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
}

.card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
}

.card .original {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.card .summary {
  margin: 8px 0 0;
  font-size: 14.5px;
  color: var(--ink);
}

.card .meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

.badge,
.tag {
  background: var(--badge);
  border-radius: 6px;
  padding: 2px 8px;
}

.hot {
  margin-left: 8px;
  color: var(--hot);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.sources {
  margin-top: 34px;
  color: var(--muted);
  font-size: 13.5px;
}

.sources h2 {
  font-size: 15px;
  color: var(--ink);
}

.warn {
  color: var(--hot);
}

.archive {
  list-style: none;
  margin: 0;
  padding: 0;
}

.archive li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}

.site-footer {
  margin: 40px auto 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}