:root {
  color-scheme: light;
  --background: #ffffff;
  --surface: #f5f7fa;
  --border: #dce1e8;
  --heading: #101828;
  --text: #344054;
  --link: #1d4ed8;
}

* { box-sizing: border-box; }

body {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 64px;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

h1, h2, h3 {
  color: var(--heading);
  line-height: 1.35;
}

h1 { margin: 0 0 8px; font-size: 32px; }
h2 { margin: 36px 0 12px; font-size: 22px; }
h3 { margin: 24px 0 8px; font-size: 18px; }
p, ul { margin: 0 0 16px; }
ul { padding-left: 24px; }
li { margin-bottom: 8px; }
a { color: var(--link); }
.effective { margin-bottom: 28px; color: #667085; }
.notice {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

@media (max-width: 600px) {
  body { padding: 32px 20px 48px; }
  h1 { font-size: 28px; }
}