@media only screen and (max-width: 768px) {
  #footer .ft_menu,
  #footer .ft_txt {
    width: 100%;
  }
  #footer .ft_menu ul li {
    font-size: 20px;
  }
  #footer .ft_list {
    margin-top: 20px;
  }
  #footer .ft_list .item {
    width: 100%;
  }
  .menu_box ul li a {
    font-size: 20px;
  }
  .ft_social {
    margin: 25px auto 0;
    justify-content: flex-start;
    margin-left: -5px;
  }
  .ft_social li a img {
    width: 45px;
    height: 45px;
  }
  #header .inner {
    padding-left: 10px;
    padding-right: 10px;
    max-width: 100%;
  }
  #header .header_btn {
    font-size: 12px;
  }
  #header .logo img {
    width: auto;
    height: 37px;
  }
  #header .btn_menu {
    width: 20px;
    height: 14px;
  }
  #header .btn_menu span {
    border-top-width: 2px;
  }
  #header .btn_menu span:nth-child(2), #header .btn_menu span:nth-child(3) {
    top: 7px;
  }
  #header .btn_menu span:nth-child(4) {
    top: 14px;
  }
  #header .menu_box ul li a {
    font-size: 20px;
  }
  .fixed_banner {
    bottom: 50px;
    right: 10px;
    padding-bottom: 5px;
  }
  .fixed_banner img {
    width: auto;
    height: min(10vw, 37px);
  }
  #footer {
    margin-bottom: 34px;
  }
}
@media only screen and (max-width: 768px) {
  .under #main {
    padding-bottom: 40px;
  }
  .under .cat_title {
    font-size: 26px;
  }
  .under .about_list .about_item {
    display: block;
  }
  .under .about_list .about_item figure {
    margin-bottom: 25px;
  }
  .under .under_gallery {
    margin-left: 0;
    margin-right: 0;
  }
  .under .under_gallery .item {
    width: 100%;
    margin-left: 0;
    margin-right: 0;
  }
  .under .under_gallery .item:not(:last-child) {
    margin-bottom: 20px;
  }
  .under .ud_menu_box {
    padding-left: 15px;
    padding-right: 15px;
  }
  .under .ud_menu_box .item {
    width: calc(50% - 10px);
    margin: 0 5px 5px;
  }
  .under .news_left,
  .under .news_right {
    width: 100%;
    max-width: 100%;
  }
  .under .news_item {
    display: block;
  }
  .under .news_item figure,
  .under .news_item .news_txt {
    width: 100%;
    max-width: 100%;
  }
  .under .news_item figure {
    margin-bottom: 15px;
  }
  .under .news_item .ttl01 {
    font-size: 22px;
  }
  .under .entry h2 {
    font-size: 20px;
  }
}
.under .idx4_frm .btn.center {
  margin-left: 0;
}

@media only screen and (max-width: 768px) {
  .home h3 {
    text-align: center;
  }
  .home #key {
    height: 85vw;
  }
  .idx1 {
    padding: 20px 0;
  }
  .idx1 .idx1_bg {
    padding: 15px 10px;
  }
  .idx1 h3, .idx1 .idx1_ttl {
    margin-left: auto;
    margin-right: auto;
    width: calc(100% - 20px);
  }
  .idx1 .idx1_txt {
    max-width: 100%;
    width: 100%;
    padding: 0;
  }
  .idx1 .idx1_slider {
    width: 100%;
  }
  .idx1 .idx1_slider {
    margin-top: 20px;
  }
  .idx1 .idx1_slider img {
    height: 104vw;
    width: calc(100% - 15px);
  }
}
@media only screen and (max-width: 480px) {
  .home #key {
    height: 140vw;
  }
}
@media only screen and (max-width: 768px) {
  .idx2 {
    padding: 20px 0;
  }
  .idx2 .idx2_list {
    display: flex;
  }
  .idx2 .idx2_list .item {
    width: 48%;
  }
  .idx2 .idx2_list .item .ttl01 {
    font-size: 20px;
  }
  .idx2 .idx2_list .item img {
    height: auto;
    -o-object-fit: cover;
    object-fit: cover;
    width: 100%;
    aspect-ratio: 1/1;
  }
}
@media only screen and (max-width: 480px) {
  .idx2 .idx2_list .item {
    width: 100%;
  }
  .idx2 .idx2_list .item img {
    height: auto;
    -o-object-fit: cover;
    object-fit: cover;
    width: 100%;
    aspect-ratio: 1/1;
  }
}
@media only screen and (max-width: 768px) {
  .idx3 .idx1_slider .idx3_item h3 {
    font-size: 21px;
  }
  .idx3 .idx1_slider .idx3_item figure img {
    height: auto;
    -o-object-fit: cover;
    object-fit: cover;
    width: 100%;
    aspect-ratio: 1/1;
  }
}
@media only screen and (max-width: 768px) {
  .idx4 {
    background-position: center;
    padding: 40px 0;
  }
  .idx4 .idx4_txt,
  .idx4 .idx4_frm {
    width: 100%;
    max-width: 100%;
  }
  .idx4 .idx4_p {
    text-align: center;
    font-size: 20px;
  }
  .idx4_frm {
    width: 100%;
    max-width: 100%;
  }
  .idx4_frm {
    margin-top: 20px;
  }
  .idx4_frm .fblock {
    display: flex;
  }
  .idx4_frm .fblock.fblock03 .frm_group:nth-child(1), .idx4_frm .fblock.fblock03 .frm_group:nth-child(2) {
    width: 49%;
  }
  .idx4_frm .fblock.fblock03 .frm_group:nth-child(3) {
    width: 100%;
  }
  .idx4_frm input[type=date] {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}
@media only screen and (max-width: 768px) {
  .fblock {
    display: block;
  }
  .inner {
    max-width: 610px;
    padding-left: 32px;
    padding-right: 32px;
  }
  .btn {
    display: table;
    margin-left: auto;
    margin-right: auto;
  }
  body {
    font-size: 14px;
  }
}
@media only screen and (max-width: 768px) {
  .pc_only {
    display: none !important;
  }
}
@media only screen and (min-width: 769px) {
  .sp_only {
    display: none !important;
  }
}