:root {
  color-scheme: light;
  font-family: Arial, "Noto Sans Thai", sans-serif;
  color: #171717;
  background: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 36px 64px;
  font-size: 16px;
  line-height: 1.8;
}

p {
  margin: 0 0 16px;
}

body > p:first-child {
  margin-bottom: 4px;
  font-size: clamp(1.55rem, 4vw, 2rem);
  line-height: 1.35;
}

body > p:nth-child(2) {
  margin-bottom: 24px;
  color: #525252;
}

body > p:nth-child(3) {
  margin-bottom: 32px;
  padding: 18px 20px;
  border: 1px solid #fecaca;
  border-radius: 12px;
  background: #fff7f7;
}

body > p:has(> strong:only-child) {
  margin-top: 36px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e5e5;
  font-size: 1.2rem;
  line-height: 1.5;
}

h2 {
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e5e5;
  font-size: 1.2rem;
  line-height: 1.5;
}

strong {
  color: #111111;
}

@media (max-width: 640px) {
  body {
    padding: 24px 18px 48px;
    font-size: 15px;
    line-height: 1.75;
  }

  body > p:nth-child(3) {
    padding: 14px 16px;
  }
}

@media print {
  body {
    max-width: none;
    padding: 0;
    font-size: 11pt;
  }
}