:root {
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: #f4f6fa;
  color: #24334d;
  font-family: "IBM Plex Sans Thai", "Sarabun", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 20px 0;
}
.brand {
  color: #0f1e3d;
  font-size: 24px;
  font-weight: 700;
  text-decoration: none;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
}
a {
  color: #1b2f5b;
}
a[aria-current="page"] {
  font-weight: 600;
}
a:focus-visible {
  outline: 3px solid #5b7bd6;
  outline-offset: 2px;
}
main {
  max-width: 760px;
  margin: 20px auto;
  padding: 0 20px 40px;
}
article {
  background: #fff;
  border: 1px solid #e4e8ef;
  border-radius: 14px;
  padding: 24px 28px 32px;
}
h1 {
  margin: 0;
  color: #0f1e3d;
  font-size: 26px;
  line-height: 1.3;
}
h2 {
  margin: 28px 0 0;
  color: #0f1e3d;
  font-size: 18px;
}
p {
  margin: 8px 0 0;
}
ul {
  margin: 8px 0 0;
  padding-left: 24px;
}
li {
  margin-top: 4px;
}
.meta {
  color: #56657e;
  font-size: 14px;
}
@media print {
  body {
    background: #fff;
  }
  .top nav {
    display: none;
  }
  article {
    border: 0;
    padding: 0;
  }
}