User

a,a:hover,a:visited{
  color: inherit;
}

header img {
    max-width: 100%; /* 画像の幅を親要素に合わせる */
    height: auto; /* アスペクト比を維持 */
}


header > a {
    background: #b0e7e1;
    width: 100%;
    display: block;
}

body{
  margin: 0;
  padding: 0;
  text-align: center;
}


a:link, a:visited,a:hover, a:active {
    color:#006366;
    text-decoration: none;
    padding: 0;
    margin:0;
    transition: .4s;
}

.menu {
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  background: #48d1cc; /*!important*/
  width: 100%;
}


.dropdown {
   padding: 20px 40px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: white;
   background: #48d1cc;
   position: relative;
   font-size: 18px;
   perspective: 1000px;
   z-index: 100;
   white-space: nowrap;
}

.dropdown a {
    color: white;
}
   
.dropdown:hover {
     background: #1e9c97;
     cursor: pointer;
}
     
.dropdown:hover .dropdown_menu {
     display: block;
}

.dropdown_menu {
   position: absolute;
   top: 100%;
   left: -40px;
   width: 100%;
   perspective: 1000px;
   z-index: -1;
   animation: growDown 300ms ease-in-out forwards;
   transform-origin: top center;
   display: none;
}

.dropdown_menu li {
    display: none;
    color: white;
    background-color: #48d1cc;
    padding: 10px 20px;
    margin: 0;
    font-size: 16px;
    opacity: 0;
}

.dropdown_menu li:hover {
      background-color: #1e9c97;
}

dropdown:hover .dropdown_menu {
    display: block;
}

.dropdown_menu li {
      display: block;
      opacity: 1;
}

@keyframes growDown {
    0% {
        transform: scaleY(0);
    }
    80% {
        transform: scaleY(1.1);
    }
    100% {
        transform: scaleY(1);
    }
}

    .sns-share-links{
        display: flex;
        align-items: center;
        gap: 0px 50px;
    }
	 
	 
main {
  text-align: left;
  padding: 20px 0;
  margin: 0px auto;
  width: 1000px;
}


main p {  
  font-size: 25px;
  line-height: 1.7em;
  color:#333333;
}





span {
 
    background:linear-gradient(transparent 60%, #b7ede9 60%);
 
}




.iro{
    height:300px;
    background-color:#39d4c8
}
.btn-circle-flat {
  display: inline-block;
  text-decoration: none;
  background: #48d1cc;
  color: #FFF;
  width: 120px;
  height: 120px;
  line-height: 120px;
  border-radius: 50%;
  text-align: center;
  overflow: hidden;
  box-shadow: 0px 0px 0px 5px #48d1cc;
  border: dashed 1px #FFF;
  transition: .4s;
  font-weight: bold;
  font-size: 35px;

}

.btn-circle-flat:hover {
    color:#006366;
  background: #00b0b5;
  box-shadow: 0px 0px 0px 5px #00b0b5;

}



d {
color:#000000;
font-size:30px;
font-weight:bold;
line-height:100%;
text-align:center;
}
.cp_h1title {
	padding: .3em;
	border-bottom: 3px double #0097A7;
}
m{
color:#20b2aa;
font-size:30px;
font-weight:bold;
line-height:150%;
}

t{
  text-align: left;
}

.box {
background:#b7eaff; /*背景色の指定*/
border:#ffffff 2px dashed; /*境界線の指定*/
box-shadow: 0 0 0 6px #b7eaff; /*境界線の外側の指定*/
padding:10px;
}


#cards {
  display: flex;
  justify-content: center;
}

.card {
  flex: 0 0 calc(25% - 10px); /* カードの幅を調整し、マージンを追加 */
  height: 500px;
  margin-bottom: 20px; /* カードの下部に余白を追加 */
  box-sizing: border-box;
  box-shadow: 0 0 0 6px #b7eaff; /* 境界線の外側の指定をここに移動 */
}

.card:nth-child(2) {
  margin-right: 10px;
  margin-left: 10px;
}

.picture img {
  width: 90%;
  height: 300px;
}

.description {
  width: 100%;
  height: 145px;
  padding-right: 12px;
  padding-left: 12px;
  box-sizing: border-box;
}

.description p {
  font-size: 13px;
  color: dimgray;
}

/* 吹き出し */

.balloon-box{
  display: flex;
  align-items: center;
  margin: 16px 0 0 0;
}

.balloon-img{
  width: auto;
  height:150px;
}

.balloon {
  position: relative; /* 三角の位置を固定するために設定 */
  display: inline-block;
  max-width: 650px;
  margin: 10px 20px 20px 10px; /* 上 左右 下のマージン */
  padding: 0px 50px; /* ふきだし内の余白 */
  background: #d8e5ff; /* 背景色 */
  text-align: left; /* テキストの揃え */
  border-radius: 15px;
  box-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.balloon::after {
  content: '';
  border: 14px solid transparent;
  border-top-color: #d8e5ff;
  position: absolute;
  top: 0;
  left: -10px;
}
m{
color:#000000;
font-size:15px;
font-weight:bold;
line-height:150%;
}
  ul {
    display: flex;
    justify-content: center;
  }

  li {
    list-style: none;
  }

.btn-circle-border-double {
  display: inline-block;
  text-decoration: none;
  color: #d8e5ff;
  width: 120px;
  height: 120px;
  line-height: 120px;
  border-radius: 50%;
  border: double 10px #d8e5ff;
  text-align: center;
  overflow: hidden;
  transition: .6s;
}

.btn-circle-border-double:hover {
  -webkit-transform: rotateY(360deg);
  transform: rotateY(360deg);
}