:root {
  --bg: #fbf8f3;
  --surface: #ffffff;
  --ink: #2b1d3a;
  --muted: #6d6177;
  --accent: #c2335f;
  --line: #e8e0d6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1426;
    --surface: #2b1d3a;
    --ink: #f4ecff;
    --muted: #c3b5d1;
    --accent: #ff7aa2;
    --line: #3d2d50;
    color-scheme: dark;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic UI', 'Meiryo', system-ui, sans-serif;
  line-height: 1.8;
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}
header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
header img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
}
header .app {
  font-size: 13px;
  color: var(--muted);
}
h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.4;
}
h2 {
  margin-top: 32px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--line);
  font-size: 18px;
}
a {
  color: var(--accent);
}
.meta {
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 14px;
}
.meta dt {
  font-weight: 700;
}
.meta dd {
  margin: 0 0 6px;
}
.card {
  display: block;
  margin: 12px 0;
  padding: 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}
.card strong {
  display: block;
  color: var(--accent);
}
footer {
  margin-top: 48px;
  color: var(--muted);
  font-size: 13px;
}
.en {
  margin-top: 40px;
  color: var(--muted);
  font-size: 14px;
}