@media screen and (max-width: 780px) {
  body {
    font-size: 12px;
  }
  .pc {
    display: none !important;
  }
  .sp {
    display: block !important;
  }
  /* layout */
  .sec {
    padding: 40px 0;
  }
  .inr {
    width: 100%;
    padding: 0 1%;
    box-sizing: border-box;
  }
  .btn a {
    margin: 20px auto 10px auto;
  }
  /*-----------------------------------------
  header
  -----------------------------------------*/
  .nav_btn {
    position: fixed;
    width: 35px;
    height: 20px;
    cursor: pointer;
    z-index: 1001;
    border: none;
    background: none;
    right: 15px;
    top: 20px;
  }
  .nav_btn span {
    position: absolute;
    height: 3px;
    width: 100%;
    background: #000;
    transition: 0.3s;
    left: 0;
  }
  .nav_btn span:nth-child(1) {
    top: 0;
  }
  .nav_btn span:nth-child(2) {
    top: 10px;
  }
  .nav_btn span:nth-child(3) {
    top: 20px;
  }
  .nav_btn.open span:nth-child(1) {
    transform: rotate(45deg);
    top: 8px;
  }
  .nav_btn.open span:nth-child(2) {
    opacity: 0;
  }
  .nav_btn.open span:nth-child(3) {
    transform: rotate(-45deg);
    top: 8px;
  }
  .sp_nav nav {
    overflow-y: scroll;
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: #fff;
    transition: right 0.3s ease;
    z-index: 1000;
    padding: 2em;
  }
  .sp_nav nav.open {
    right: 0;
  }
  .sp_nav nav > ul {
    font-size: 1.1em;
  }
  .sp_nav nav > ul p {
    font-weight: 500;
    color: #d60050;
    text-align: center;
    font-size: 1.15em;
    margin-top: 2em;
  }
  .sp_nav nav > ul .new {
    background-color: #d60050;
    color: #fff;
    border-radius: 3px;
    text-align: center;
    display: block;
    font-size: 10px;
    line-height: 1;
    padding: 1px 5px;
    margin: 0 auto;
    width: 40px;
  }
  .sp_nav nav > ul li {
    border-bottom: 1px dashed #999;
    padding: 10px 0;
  }
  .sp_nav nav > ul li a {
    display: block;
    text-align: center;
  }
  .sp_nav nav > ul li ul li:last-child {
    border: none;
  }
  .sp_nav nav .contact_sec.sp {
    margin-top: 20px;
    padding-bottom: 100px;
  }
  .sp_nav nav .contact_sec.sp dl {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-flow: column;
  }
  .sp_nav nav .contact_sec.sp dl dt {
    font-size: 24px;
    line-height: 1.4;
    letter-spacing: 1px;
    text-align: center;
  }
  .sp_nav nav .contact_sec.sp dl dt span.time {
    font-size: 0.5em;
    display: block;
  }
  .sp_nav nav .contact_sec.sp dl dd a {
    display: block;
    font-size: 0.9em;
    border-radius: 3px;
    background-color: #f1f1f1;
    padding: 1px 10px;
    text-align: center;
    line-height: 1.4;
    padding: 14px 0;
  }
  .sp_nav nav .contact_sec.sp dl dd.oloc_sec a {
    background: linear-gradient(45deg, #016296 0%, #04abd0 100%);
    text-align: center;
  }
  .sp_nav nav .contact_sec.sp dl dd.oloc_sec a p {
    font-size: 0.8em;
  }
  .sp_nav nav .contact_sec.sp dl dd.online_shop a {
    background: #d60050;
  }
  .sp_nav nav .contact_sec.sp dl dd a {
    color: #fff;
  }
  .sp_nav nav .contact_sec.sp dl dd a span {
    font-size: 0.8em;
    display: block;
  }
  header .top_sec {
    padding: 2px 0;
  }
  header .top_sec .inr h1 {
    font-size: min(3.5vw, 9px);
  }
  header .header_sec .inr {
    display: flex;
    align-items: center;
    padding: 3px 2%;
  }
  header .header_sec .inr h2 {
    width: 50%;
    max-width: 200px;
    min-width: auto;
    margin: 8px 0;
  }
  header .header_sec .inr .sns_sec {
    width: 30px;
  }
  footer .banner_sec ul {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0;
  }
  footer .banner_sec ul li {
    width: calc(50% - 10px);
    margin-bottom: 10px;
  }
  footer .footer_bottom .inr > ul {
    flex-flow: column;
    padding: 30px 0;
  }
  footer .footer_bottom .inr > ul > li {
    width: 80%;
    margin: 0 auto;
    border-left: none;
    padding: 0;
    display: block;
  }
  footer .footer_bottom .inr > ul .logo {
    margin-bottom: 10px;
  }
  footer .footer_bottom .inr > ul .logo figure {
    width: 70%;
    margin: 0px auto;
  }
  footer .footer_bottom .inr > ul .contact p {
    font-size: 4cqw;
  }
  footer .footer_bottom .inr > ul .contact dl dt {
    font-size: 6cqw;
  }
  footer .footer_bottom .inr > ul .contact dl dd {
    font-size: 3cqw;
  }
  footer .footer_bottom .inr > ul .nav {
    display: none;
  }
  footer .copyright {
    font-size: 9px;
    letter-spacing: 1px;
  }
}
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

body.no_scroll {
  overflow: hidden;
}