:root {
  --bg: #f5f8fd;
  --surface: #ffffff;
  --line: #d7e2f4;
  --ink: #13233f;
  --muted: #5c6d8d;
  --link: #2b5ba5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Noto Sans SC", "Avenir Next", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

main {
  width: min(980px, calc(100% - 20px));
  margin: 18px auto 30px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  padding: 18px;
}

h1 {
  margin: 0 0 6px;
  font-size: 1.45rem;
}

p,
li {
  line-height: 1.6;
}

.small {
  color: var(--muted);
  font-size: 0.85rem;
}

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

nav {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 2px 8px;
  font-size: 0.74rem;
  color: var(--muted);
}

.notice {
  border: 1px dashed #cfddf3;
  border-radius: 10px;
  padding: 10px;
  background: #f8fbff;
}