body{
    text-align:center; /*ページ全体を中央揃えにする*/
    background-color: rgba(213, 252, 255, 0.3);
    overflow-x: hidden;
}.card_group{
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  margin: 120px 50px 0px 50px;
}.card{
    width: 400px;
    height:auto;
    border-radius:8px;
    overflow:hidden;
    box-shadow:0 4px 15px rgba(0,0,0,.2);
    margin: 5px 15px 5px 15px;
    z-index: 10;
}
.card li{
    list-style: none;
}
.img{
    vertical-align:bottom;
}
.card_sea{
    background-image: url(top_pic/OmiShrine.webp);
}
.card_hero{
    background-image: url(sea/sea_pic/hero_yellow.webp);
}
.card_sea_imp{
    background-image: url(top_pic/sea_imp.webp);
}
.card_tv{
    background-image: url(top_pic/TV.webp);
}
.card_ill_imp{
    background-image: url(top_pic/illigal_map.webp);
}
.card_image{
    width: 100%;
    height: 220px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    position: relative;
}
.card_textbox{
    width:100%;
    height:200px;
    padding: 10px 25px;
    color: black;
    background-color: white;
    box-sizing:border-box;
}
.card_titletext{
    font-size: 24px;
    font-weight: bold;
    margin: 20px 0;
}
.card_overviewtext{
    font-size: 18px;
    line-height:150%;
}
a{
	text-decoration: none;
}
.item-none{
    display: none;
}
.come_right_1{
    animation: right_middle 0.6s ease-in-out 0s forwards;
}
.come_right_2{
    animation: right_middle 0.8s ease-in-out 0s forwards;
}
@keyframes right_middle {
    0%{
        opacity: 0;
        transform: translateX(500px);
    }
    30%{
        opacity: 1;
    }
    100%{
        
        transform: translateX(0px);

    }
}

.bubble_color0{
    border: 6px #a9aae4 solid;
}
.bubble_color1{
    border: 4px #6cebeb solid;
}
.bubble_color2{
    border: 4px #93ddc2 solid;
}
.bubble_color3{
    border: 7px #d9d8ff solid;
}
.fuwa_anime_0{
    animation: fuwafuwa 10s infinite ease-in-out 1s alternate;
}
.fuwa_anime_1{
    animation: fuwafuwa 6s infinite linear 1s alternate;
}
.fuwa_anime_2{
    animation: fuwafuwa 10s infinite linear 2s alternate;
}
.fuwa_anime_3{
    animation: fuwafuwa 7s infinite ease-in-out 1s alternate;
}
.fuwa_anime_4{
    animation: fuwafuwa_100 10s infinite ease-in-out 3s alternate;
}
.fuwa_anime_5{
    animation: fuwafuwa_100 12s infinite linear 1s alternate;
}
@keyframes fuwafuwa {
    0%{
        transform: translate(0);
    }
    100%{
        transform: translateY(50px);
    }
}
@keyframes fuwafuwa_100 {
    0%{
        transform: translate(0px);
    }
    100%{
        transform: translateY(100px);
    }
}

.sea_bubble_back{
    position: absolute;
    border-radius: 50%;
    z-index: 1;
    transition: 1s ease-out;
}

.references{
    width: auto;
    cursor: pointer;
    color: blue;
}
  .references:hover{
    color: purple;
}


@media screen and (max-width: 1300px){
    /* 小さいパソコンの時 */
    body{
        background-color: rgba(213, 252, 255, 0.3);
        background-attachment: fixed;
        background-size: 100vw 100vh;  
        min-height: 100vh;
        width:100%;max-width:100%;
        text-align:center; /*ページ全体を中央揃えにする*/
        box-sizing:border-box;
        position: relative;
    }.card_group{
        grid-template-columns: 300px 300px;
        margin: 30px;
    }.card{
        width:300px;
    }.card_receipt_img{
        height: 180px;
    }.card_image{
        width:320px;
        height:180px;
        padding-top:0%;
        box-sizing:border-box;
        position: relative;
    }.card_textbox{
        height:150px;
        padding:5px 18px;
    }.card_titletext{
        font-size: 17px;
    }.card_overviewtext{
        font-size: 14px;
    }
}

@media screen and (max-width: 600px){
    /* スマホの時 */
    body{
        background-color: rgba(213, 252, 255, 0.3);
        background-attachment: fixed;
        background-size: 100vw 100vh;  
        min-height: 100vh;
        width:100%;max-width:100%;
        text-align:center; /*ページ全体を中央揃えにする*/
        box-sizing:border-box;
        position: relative;
    }
    .card_group{
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        margin: 20px 50px 0px 50px;
      }
    .card{
          width: 400px;
          height:auto;
          border-radius:8px;
          overflow:hidden;
          box-shadow:0 4px 15px rgba(0,0,0,.2);
          margin: 10px 15px 5px 15px;
          z-index: 10;
    }.card_titletext{
        font-size: 15px;
        margin: 10px 0;
    }
}