/* Desktop Version */
 html, body {
    overflow-x: hidden;
  }
.header{
    width: 100%;
    height: 20vh;
    background-image: url(../image/header.png);
    background-position: center;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.header .center{
    display: flex;
    align-items: center;
    flex-direction: column;
    background-color: #ffffff57 ;
    padding: 20px 50px;
    border-radius: 0 0 50px 50px ;
    color: #2C3F6E;
    text-align: center;
}
.header .center h1, h2{
margin: 0;
font-size: 3rem;
}


    h2 {
      color: #004b87;
      font-size: 1.25rem;
      margin-top: 2rem;
      border-bottom: 1px solid #ddd;
      padding-bottom: 0.3rem;
    }

    p {
      font-size: 1rem;
      line-height: 1.6;
      margin-bottom: 1rem;
    }

@media screen and (max-width: 1200px) {

    .header .center h1, h2{
        margin: 0;
        font-size: 2.8rem;
        }
        .btn{
            font-size: 1rem;
        }
}

/* Mobile Version */
@media screen and (max-width: 800px) {

}
@media screen and (max-width: 600px){
    .subnavi{
        display: none;
    }
    .header{
        margin-top: 90px;
    }
}

@media (max-width: 600px) {

      h2 {
        font-size: 1.1rem;
      }

      p {
        font-size: 0.95rem;
      }
    }