:root {
  --bg: #fbfbfd;
  --fg: #1d2030;
  --muted: #5d6275;
  --accent: #3f51b5;
  --panel: #eef0fa;
  --rule: #dcdfea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.75 "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 { font-size: 1.7rem; line-height: 1.3; margin: 0.5rem 0 0.25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
p, ul { margin: 0.6rem 0; }
ul { padding-left: 1.3rem; }
li { margin: 0.3rem 0; }

a { color: var(--accent); }

.crumb, .meta { color: var(--muted); font-size: 0.9rem; }

.summary {
  background: var(--panel);
  border-radius: 12px;
  padding: 0.25rem 1.25rem 0.75rem;
  margin: 1.5rem 0;
}
.summary h2 { margin-top: 1rem; }

hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0 2rem; }

.apps { list-style: none; padding: 0; }
.apps li { border: 1px solid var(--rule); border-radius: 12px; padding: 1rem 1.25rem; margin: 0.75rem 0; }
.apps strong { font-size: 1.1rem; }