* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.7;
  color: #333;
  background-color: #f7f3ec;
}

header {
  background-color: #fff;
  padding: 20px 24px;
  border-bottom: 1px solid #ddd;
}

header > *,
main,
footer,
main p,
main h1,
main h2,
main h3,
main h4,
main h5,
main h6,
main img {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

header h1 {
  margin: 0 0 8px;
  font-size: 28px;
  color: #5a2d2d;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

nav a {
  color: #333;
  text-decoration: none;
}

nav a:hover {
  color: #5a2d2d;
}

main {
  padding: 32px 24px 48px;
}


h1, h2, h3, h4, h5, h6 {
  color: #5a2d2d;
  line-height: 1.4;
}

h4, h5, h6 {
  font-size: 1.17em;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 16px 0;
}

footer {
  background-color: #fff;
  padding: 20px 24px;
  border-top: 1px solid #ddd;
  text-align: center;
  color: #666;
}