@charset "UTF-8";
html{box-sizing:border-box;-webkit-text-size-adjust:100%}*,:after,:before{background-repeat:no-repeat;box-sizing:inherit}:after,:before{text-decoration:inherit;vertical-align:inherit}*{padding:0;margin:0;box-sizing:border-box;}audio:not([controls]){display:none;height:0}hr{overflow:visible}article,aside,details,figcaption,figure,footer,header,main,menu,nav,section,summary{display:block}summary{display:list-item}small{font-size:80%}[hidden],template{display:none}abbr[title]{border-bottom:1px dotted;text-decoration:none}a{background-color:transparent;-webkit-text-decoration-skip:objects}a:active,a:hover{outline-width:0}code,kbd,pre,samp{font-family:monospace,monospace}b,strong{font-weight:bolder}dfn{font-style:italic}mark{background-color:#ff0;color:#000}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}input{border-radius:0}[role=button],[type=button],[type=reset],[type=submit],button{cursor:pointer}[disabled]{cursor:default}[type=number]{width:auto}[type=search][type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}textarea{overflow:auto;resize:vertical}button,input,optgroup,select,textarea{font:inherit}optgroup{font-weight:700}button{overflow:visible}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:0;padding:0}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button:-moz-focusring{outline:1px dotted}[type=reset],[type=submit],button,html [type=button]button,select{text-transform:none}button,input,select,textarea{background-color:transparent;border-style:none;color:inherit}select::-ms-expand{display:none}select::-ms-value{color:currentColor}legend{border:0;color:inherit;display:table;max-width:100%;white-space:normal}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}[type=search]img{border-style:none;vertical-align: bottom}progress{vertical-align:baseline}svg:not(:root){overflow:hidden}audio,canvas,progress,video{display:inline-block}@media screen{[hidden~=screen]{display:inherit}[hidden~=screen]:not(:active):not(:focus):not(:target){position:absolute!important;clip:rect(0 0 0 0)!important}}[aria-busy=true]{cursor:progress}[aria-controls]{cursor:pointer}[aria-disabled]{cursor:default}::-moz-selection{background-color:#b3d4fc;color:#000;text-shadow:none}::selection{background-color:#b3d4fc;color:#000;text-shadow:none}ul,ol{list-style:none;}a{text-decoration:none;}img{max-width: 100%;vertical-align: bottom;}


/* --------------------------------
  header
-------------------------------- */
.header {
  padding: 20px 0;
  background-color: #8be5ec;
  text-align: center;

  position: sticky;
  top: 0;
  z-index: 100;
}
  .header h1 {
    font-size: 1.5rem;
  }
  .header h1::first-line {
    font-size: 1.125rem;
  }
  .btn {
    display: inline-block;
    width: 100%;
    margin-top: 10px;
    border: #fff;
  }
  .btn a {
    padding: 6px 20px;
    border: 2px solid #518f8e;
    color: #518f8e;
    font-weight: 700;
    transition: all .3s;
  }
  .btn a:hover {
    padding: 6px 20px;
    background-color: #fff;
    color: #518f8e;
  }
  
  @media screen and (max-width: 767px) {
    .header h1 {
      white-space: pre-line;
    }
  }



/* second-header -------------------------------*/

h2{
    text-align: center;
    padding: 50px 0;
    font-size: 36px;
}

.main-visual{
    width: 80%;
    aspect-ratio: 16/9;
    margin: 0 auto 100px;
    >img{
        object-fit: cover;
        width: 100%;
        height: 100%;
    }
}

.lead{
    width: 70%;
    margin: 0 auto 100px;
    font-size: 18px;
    line-height: 2;
}

.page{
    min-height: 110vh;
    padding: 80px 20px;

}

.page-title{
    text-align: center;
    margin: 40px 0;
    font-size: 38px;
}

.page-text{
    width: 70%;
    margin: 30px auto;
    font-size: 18px;
    line-height: 2;
}

.page-content{
    width: 80%;
    aspect-ratio: 16/9;
    margin: 100px auto;
    >iframe{
        width: 100%;
        height: 100%;
    }
}


/* トップに戻るボタン */
.to-top{
    display: block;
    width: 44px;
    height: 44px;
    position: fixed;
    right: 50px;
    bottom: 50px;
    z-index: 100;
}


/* --------------------------------
  footer
-------------------------------- */
.footer {
  padding: 10px;
  background-color: #a4ebf0;
  text-align: center;
}