:root {
  --red: #A31F34;
  --grey: #8A8B8C;
  --blue: #2F5DA8;
  --green: #3C8D5A;
  --bg: #FFFFFF;
  --fg: #111111;
  --muted: #55565A;
  --line: rgba(138, 139, 140, 0.25);
  --card: #FFFFFF;
  --card-hover: #FAFAFA;
  --tag-bg: rgba(163, 31, 52, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --red: #D9475C;
    --blue: #5B8BD9;
    --green: #5DB37E;
    --bg: #0D1117;
    --fg: #F0F2F5;
    --muted: #A8ADB4;
    --line: rgba(138, 139, 140, 0.3);
    --card: #121820;
    --card-hover: #161D27;
    --tag-bg: rgba(217, 71, 92, 0.14);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", "Noto Sans TC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 300;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

/* thin colour band across the top: red main + blue/green strip */
.band { display: flex; height: 4px; }
.band span:nth-child(1) { flex: 1; background: var(--red); }
.band span:nth-child(2) { width: 48px; background: var(--blue); }
.band span:nth-child(3) { width: 48px; background: var(--green); }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }

header.masthead { padding: 72px 0 40px; border-bottom: 1px solid var(--line); }

.kicker {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey);
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(40px, 9vw, 72px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 0 0 16px;
}
h1 .dot { color: var(--red); }

.lede { max-width: 560px; margin: 0; color: var(--muted); font-size: 17px; }

section.toc { padding: 40px 0 64px; }

.toc-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 16px; }
.toc-head h2 { font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; margin: 0; }
.toc-head .count { font-size: 13px; color: var(--grey); }

ol.issues { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }

a.card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  background: var(--card);
  color: inherit;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease;
}
a.card:hover, a.card:focus-visible { background: var(--card-hover); border-color: var(--red); }
a.card:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

.num {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
}
.num strong {
  display: block;
  font-family: "Inter", sans-serif;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--red);
  line-height: 1.1;
}

.card h3 { margin: 0; font-size: 20px; font-weight: 700; line-height: 1.3; }
.card .zh { margin: 4px 0 8px; font-size: 16px; font-weight: 500; color: var(--muted); }
.card p.blurb { margin: 0 0 12px; font-size: 15px; color: var(--muted); }

.meta { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; font-size: 13px; color: var(--grey); }
.tag { display: inline-block; padding: 2px 10px; background: var(--tag-bg); color: var(--red); font-weight: 500; font-size: 12px; }

footer { border-top: 1px solid var(--line); padding: 24px 0 48px; font-size: 13px; color: var(--grey); }
footer p { margin: 0 0 6px; }

@media (max-width: 560px) {
  header.masthead { padding: 48px 0 32px; }
  a.card { grid-template-columns: 1fr; gap: 12px; padding: 20px 16px; }
  .num strong { display: inline; font-size: 28px; margin-left: 6px; }
}