/* JSアラート */
.js_alert {
   position: fixed;
   top: 0;
   left: 0;
   background: #fff;
   width: 100vw;
   min-height: 100vh;
   min-height: calc(var(--vh, 1vh) * 100);
   margin: 0 auto;
   padding: 100px 60px;
   z-index: 998;
   overflow: hidden;
   opacity: 0.95;
   border: 20px solid rgba(0, 0, 0, 0.1);
}

.js_alert p {
   max-width: 75%;
   margin: 0 auto;
}

.js_alert span {
   display: block;
   width: 100%;
   margin: 25px auto 5px;
   text-align: center;
   font-size: 140%;
   font-weight: 600;
}

.js_alert div {
   font-size: 90%;
   text-align: center;
}

@media screen and (max-width: 768px) {
   .js_alert {
      overflow: scroll;
      padding: 7%;
   }

   .js_alert p {
      max-width: 90%;
   }

   .js_alert span {
      font-size: 100%;
   }
}