:root {
  color-scheme: light;
  --ink: #17191c;
  --muted: #666b73;
  --line: #dfe2e6;
  --paper: #f6f7f8;
  --white: #fff;
  --green: #13795b;
  --blue: #1769aa;
  --red: #b42318;
  --amber: #a15c00;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif; letter-spacing: 0; }
a { color: inherit; }
.topbar { height: 64px; padding: 0 max(20px, calc((100vw - 1180px) / 2)); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 760; text-decoration: none; font-size: 18px; }
.update { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.dot.ok { background: var(--green); }
.dot.bad { background: var(--red); }
main { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.intro { padding: 48px 0 34px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 50px; align-items: end; }
.eyebrow { margin: 0 0 10px; color: var(--blue); font-size: 13px; font-weight: 700; }
h1 { margin: 0; max-width: 760px; font-family: Georgia, "Songti SC", serif; font-size: clamp(34px, 5vw, 62px); line-height: 1.08; font-weight: 650; }
.lede { color: var(--muted); max-width: 700px; font-size: 16px; line-height: 1.7; margin: 20px 0 0; }
.metrics { display: flex; gap: 28px; padding-bottom: 5px; }
.metrics div { min-width: 72px; }
.metrics strong { display: block; font-size: 26px; font-variant-numeric: tabular-nums; }
.metrics span { color: var(--muted); font-size: 12px; }
.controls { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.segments { display: flex; gap: 6px; flex-wrap: wrap; }
button { border: 1px solid var(--line); background: var(--white); color: var(--muted); padding: 8px 12px; border-radius: 6px; cursor: pointer; font: inherit; font-size: 13px; }
button.active { background: var(--ink); color: var(--white); border-color: var(--ink); }
.search input { width: min(280px, 35vw); border: 1px solid var(--line); border-radius: 6px; background: var(--white); padding: 9px 12px; font: inherit; font-size: 13px; }
.source-status { display: flex; gap: 12px; flex-wrap: wrap; padding: 14px 0; color: var(--muted); font-size: 12px; }
.source-status span { display: inline-flex; align-items: center; gap: 6px; }
.source-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.source-status .failed i { background: var(--red); }
.news-list { background: var(--white); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.news-item { display: grid; grid-template-columns: 58px minmax(0, 1fr) 130px; gap: 22px; padding: 24px; border-bottom: 1px solid var(--line); }
.news-item:last-child { border-bottom: 0; }
.rank { color: var(--muted); font-family: Georgia, serif; font-size: 26px; }
.story h2 { margin: 0; font-size: 19px; line-height: 1.45; font-weight: 690; }
.story h2 a { text-decoration: none; }
.story h2 a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.summary { margin: 10px 0; color: #4f545b; line-height: 1.65; font-size: 14px; }
.summary strong { color: var(--green); }
.why { margin: 10px 0 0; color: var(--green); font-size: 13px; font-weight: 620; }
.meta { display: flex; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: 12px; margin-top: 13px; }
.meta a { color: var(--blue); text-decoration: none; }
.side { text-align: right; }
.score { font-size: 24px; font-weight: 760; }
.score-label { color: var(--muted); font-size: 11px; }
.tag { display: inline-block; margin-top: 12px; padding: 4px 7px; border: 1px solid var(--line); border-radius: 4px; font-size: 11px; color: var(--muted); }
.tag.new { color: var(--red); border-color: #f0b9b4; }
.empty { text-align: center; padding: 80px 20px; color: var(--muted); }
footer { width: min(1180px, calc(100% - 40px)); margin: 30px auto; color: var(--muted); font-size: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 760px) {
  .topbar { padding: 0 18px; }
  main { width: min(100% - 28px, 1180px); }
  .intro { grid-template-columns: 1fr; gap: 26px; padding-top: 34px; }
  .metrics { justify-content: space-between; gap: 10px; }
  .controls { flex-direction: column; }
  .search input { width: 100%; }
  .news-item { grid-template-columns: 36px minmax(0, 1fr); gap: 10px; padding: 20px 16px; }
  .side { grid-column: 2; display: flex; text-align: left; align-items: center; gap: 8px; }
  .score { font-size: 16px; }
  .score-label { margin-right: auto; }
}