* {
  box-sizing: border-box;
  list-style: none;
  margin: 0;
  padding: 0;
  text-decoration: none;
}

/* ゆっくりに遷移する */
html {
scroll-behavior: smooth;
}

#headline{
   z-index: 1100;
  background-color: rgb(255, 255, 255);
  display: flex;
  width: 100%;
  height: 90px;
  justify-content: center;
  position: fixed;
}

.header-inner img{
  top: 10%;
  height: 60px;
}

.header-inner h1 {
  white-space:nowrap;
  font-size: 40px;
  display: flex ;
  position: fixed;
}
.header-inner h1 a{
  color: #1b1b1b;
}


.header-inner {
  align-items: center;
  position: fixed;
  display: flex;
  height: 90px;
  width: 1300px;
  background-color: white;
}

.header-inner li {
  white-space:nowrap;
  line-height: 80px;
  display: flex;
  position: relative;
  left: 54%;
  background-color: white;
  font-size: 18px;
  transition: .5s;
  width: 100px;
  height: 80px;
  justify-content: center;
  border-bottom: 7px solid white;
}


.header-inner li p{
  margin: auto;
  font-size: 12;
  line-height: 1.2;
}

.header-inner li:hover {
  background-color: #ececec;
  color: #00aec4;
  border-bottom: 7px solid rgb(255, 205, 112);
}

.header-inner li a {
  /*ジャンプボタンの文字*/
  color: #00aec4;
display:flex;
justify-content: center;
position: relative;
width: 100%;
}

.section-title {
  color: #00aec4;
  font-size: 40px;
  justify-content: center;
  width: 100%;
  position: absolute;
  display: flex;
  top: 100px;
}


@media screen and (max-width: 480px) {

  *{
    font-family: "ヒラギノ角ゴ Pro W3";
    color: #1b1b1b;
  }

  #headline{
    height: 40px;
  }

  .btn{
    margin: auto;
  }

  .header-inner li {
    line-height: 50px;
    height: 50px;
    width: 100px;
    left: 0%; 
  }

  .header-inner li:not(:nth-of-type(6)) {
    border-right: 1px solid #00aec4;
  }

  .header-inner li a {
    font-size: 12px;
     text-align: center;
    color:#00aec4;
  }
 
  .header-inner li p{
  font-size: 13px;
  white-space:wrap;
  line-height: 1.4;
    height: 30px;
  color:#00aec4;
  }
 
  .header-inner img{
    margin-top: 3px;
    height: 25px;
  }

  .header-inner h1 {
    top: 5px;
    height: 60px;
    font-size: 21px;
  }
 
  .header-inner {
    top: 40px ;
    height: 40px;
    width: 100%;
    display: flex;
    text-align: center;
    justify-content: center;
  }
 
  .section-title {
    top: 150px;
    color: #00aec4;
    font-size: 30px;
  }
}



.back-btn {
  /*トップへ戻るボタン*/
  z-index: 1001;
  background-color: #111934;
  border-radius: 16px;
  bottom: 20px;
  height: 50px;
  line-height: 50px;
  position: fixed;
  right: 20px;
  text-align: center;
  transform: translateX(-50%);
  width: 120px;
}

.back-btn a {
  border-radius: 16px;
  color: #e8e8e8;
  cursor: pointer;
  display: block;
  height: 100%;
  transition: .3s;
  width: 100%;
}

.back-btn a:hover {
  background-color: #adadad;
  color: #000000;
}

footer{
background-color: #c4c4c4;  
position: absolute;
text-align: center;
width: 100%;
padding: 0.8em;
}

footer img{
position: absolute;
bottom: 5%;
left: 10px;
}