.oya_body{
    min-width: 1060px;
    max-width: 1400px;
    width: 100%;
    /* width: 676px; */
    /* 675 + 36 */
    /* min-height: 676px; */
    /* 900 + 36 */
    /* max-height: 676px; */
    margin: auto;
}
.shinchoku{
    margin: 10px 0px 10px 0px ;
    line-height: 1 !important;
}
.btnHome{
    background-color: #5b9bd5;
    color: white;
}
.btnHome:hover{
    opacity: 0.6;
    color: white;
}

/* iFrame 20240220 */
.gakusyuu_page_main{
    margin: 0 auto;
    min-height: 500px;
    max-height: 960px;
    height: 92vh;
    min-width: 960px;
    max-width: 1280px;
    width: 92vw;
    /* border: solid 2px lightgrey; */
}

.ga_page_move{
    background-color: #e1f1f9;
    border: solid 1px lightgray;
    cursor: pointer;
}
.ga_page_move:hover{
    background-color: #c0e4f7;
}

#explanation_layer {
    position: absolute;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* margin-top: 18px; */
}

#explanation_layer .page_link_box {
    background-color: rgba(0, 0, 0, 0.1);
}  

#explanation_layer .page_link_box:hover {
    background-color: rgba(255, 183, 0, 0.3);
    cursor: pointer;
}

.iFrame-css-responsive_smalruby{
    /* height: 100vh; */
    overflow: hidden;
    position: relative;
    padding-bottom: 100%;
}
.iFrame-css-responsive_smalruby iframe {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    height:inherit;
    width: 100%;
}

.btnPageSelect{
    background-color: white;
    border: solid 1px lightgrey;
}
.btnPageSelect:hover{
    background-color: rgb(65, 65, 65);
}

/* 演習画面を表示するボタン */
#btn_ensyuu_open {
    position: absolute;
    z-index: 8889;
    top:112px;
    left:688px;
    width: 114px;
    height: 42px;
    border-radius: 24px;
    background-color: #2C4C88;
    color: whitesmoke;
    font-size: 5.0rem;
    text-align: center;
    font-weight: 700;
}  

#btn_ensyuu_open:hover {
    opacity: 0.7;
    cursor: pointer;
}


/* 演習画面を表示するボタン */
#box_let_us_go_to_ensyuu {
    position: absolute;
    z-index: 8889;
    top:112px;
    left:688px;
    width: 114px;
    height: 42px;
    border-radius: 8px;
    border: solid 1px lightgray;
    background-color: rgba(246, 246, 246, 0.9);
    box-shadow: -3px 3px 9px #575757;
}  

.hide{
    display: none !important;
}

.blink {
    animation: blinkAnime 0.5s infinite alternate;
  }
  @keyframes blinkAnime{
     0% { color: #000000 }
   100% { color: #e0e0e0 }
  }

/* modal */
#modal_kaisetus {
    display: none;
    position: absolute;
    /* width: 50%; */
    height: auto;
    /* max-width: 360px; */
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translate(-50%,-50%); */
    /* background: #fff; */
    /* background-color: antiquewhite; */
    border: solid 1px gray;
    box-shadow: -10px 10px 10px #d0d0d0;
    /* border-radius: 8px; */
    z-index: 101;
    /* text-align: center; */
}
/* #modal_kaisetus img {
    max-width: 100%;
} */
#modal_kaisetus.open {
    display: block;
}
.modal_delete {
    cursor: pointer;
    text-align: center;
}
.modal-illustration{
    width: 100%;
}

#page_close_btn_box{
    position: absolute;
    z-index: 201;
    top: -2px !important;
    right: 0px;
    width: 298px;
    height: 28px;
    background-color: transparent;
}

#page_move_btn_box{
    position: absolute;
    z-index: 201;
    bottom:0px;
    left: 0px;
    width: 100%;
    height: 12%;
}
.btn_move_page{
    width: 62px;
    cursor: pointer;
}
.btn_move_page:hover{
    opacity: 60%;
}

/* 演習画面に表示を切り替えるボタン */
/* #btn_ensyuu_open{
    position: absolute;
    top:112px;
    left:688px;
    width: 114px;
    height: 42px;
    border-radius: 8px;
}
#btn_ensyuu_open:hover{
    opacity: 60%;
} */

#modal_ensyuu{
    display: none;
    position: fixed;
    z-index: 8888;
    top : 0;
    left : 0;
    width: 100%;
}