html{
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", sans-serif;
  color: #333;
}

header {
  background-color: white;
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 5%;
  border-bottom: 1px solid #6d90c9;
}

header .logo {
  color:#6d90c9 ;
  font-size: 30px;
  font-weight: bold;
}

header nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #000;
  font-size: 14px;
}

h2{
  text-align: center;
  color:#6d90c9 ;
  margin: 60px 0 40px 0;
}

section{
  text-align: center;
  margin: 100px 0;
}

footer {
  text-align: center;
  font-size: 12px;
  padding: 20px 5%;
  border-top: 1px solid #ccc;
}

/* スマホサイズ */
@media screen and (max-width: 768px) {
  .main {
    display: flex;
    flex-direction: column;
    text-align: center;
  }


}