body {
  max-width: 680px;
  margin: 48px auto;
  padding: 0 24px;
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #222;
  background: #fff;
  word-break: keep-all;
}
h1 { font-size: 28px; margin: 0 0 20px; }
h2 { font-size: 18px; margin: 28px 0 12px; }
p { margin: 0; }
ul { padding-left: 24px; }
li { margin: 10px 0; }
a { color: #165ba7; }
a:focus-visible { outline: 2px solid #165ba7; outline-offset: 4px; }
@media (max-width: 480px) { body { margin-top: 28px; } }