a {
color: black; /* 文字色 */
text-decoration: none; /* 下線を削除 */
font-weight: bold; /* 太字 */
transition: 0.3s; /* ホバー時のアニメーション */
}
a:hover {
color:#696969;
}

body {
  font-family: "BIZ UDPMincho", serif;
  font-weight: 400;
  font-style: normal;
}


header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: #1e293b;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
  box-sizing: border-box;
}

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

nav a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.8rem;
}

.header-box {
  height: 60px;
}

h1{
   color:blue
}