:root {
  --bg: #F8F9FA;
  --card-bg: #FFFFFF;
  --border: #E0E0E0;
  --text: #333333;
  --text-muted: #999999;
  --body-text: #555555;
  --accent: #1565C0;
  --link: #007AFF;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 24px 16px 60px;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
}

h1 {
  font-size: 22px;
  font-weight: bold;
  text-align: center;
  margin: 8px 0 4px;
}

.updated {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 28px;
}

.section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 16px;
}

.section h2 {
  font-size: 16px;
  margin: 0 0 10px;
}

.section h3 {
  font-size: 14px;
  color: var(--accent);
  margin: 14px 0 4px;
}

.section p {
  font-size: 14px;
  color: var(--body-text);
  margin: 0 0 10px;
}

.section a {
  color: var(--link);
  word-break: break-all;
}

.back {
  display: block;
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--link);
  text-decoration: none;
}