@media only screen and (max-width: 768px) {
  .home_page .key {
    --height: 100vh;
    --max-height: min(200vw , 750px);
    --min-height: 560px;
    font-size: 8px;
  }
  .home_page .key .key_text .inner {
    padding: 0 20px;
  }
  .home_page .key .key_text .item {
    align-items: flex-end;
  }
  .home_page .key .key_text .item::before {
    width: 100%;
    height: 60%;
    top: unset;
    clip-path: polygon(100% 0, 0% 100%, 100% 100%);
    opacity: 0.5;
  }
  .home_page .key .key_text .item::after {
    background-image: url("../images/idx_mv01_sp.jpg");
    transform: scale(1);
  }
  .home_page .key .imvs-head h2 {
    line-height: 1.3;
    text-shadow:
      0 0 2px rgba(0, 0, 0, 0.2),
      0 0 4px rgba(0, 0, 0, 0.4),
      0 0 6px rgba(0, 0, 0, 0.6);
  }
  .home_page .key .key_text .catch {
    font-size: min(1.125vw, 5px);
    margin: 0 auto;
    position: relative;
    z-index: 0;
    padding: 15px 0;
  }
  /* .home_page .key .key_text .catch::before {
    content: "";
    position: absolute;
    inset: 0 -50vw;
    background-color: var(--main-color);
    opacity: 0.95;
    z-index: -1;
  } */
  /* .home_page .key .imvs-head {
    margin-bottom: 3em;
  } */
}
@media only screen and (max-width: 640px) {
  .home_page .key {
    font-size: 1.4vmin;
  }
}
@media only screen and (max-width: 768px) and (orientation: landscape) {
  .home_page .key {
    font-size: 1.4vmin;
  }
}
@media only screen and (max-width: 768px) {
  .itt-en {
    font-size: 17px;
  }
  .itt-jp {
    font-size: 24px;
    line-height: 1.5;
  }
  .ibtn {
    width: 100%;
    line-height: 1.6;
  }
  .ibtn a {
    width: min(100%, 260px);
    min-height: 56px;
    margin: 0 auto;
    padding: 0 30px;
  }
  .ibtn a::before {
    right: 7px;
  }
  .ipost {
    padding: 50px 0;
  }
  .ipost h3 {
    margin-bottom: 5px;
    text-align: center;
  }
  .ipost h3 .en {
    font-size: 17px;
  }
  .ipost h3 .jp {
    font-size: 24px;
  }
  .ipost .box {
    width: 100%;
    padding: 30px;
  }
  .ipost li {
    max-width: 100%;
  }
  .ipost li a {
    padding: 16px 0;
    --w: 6.6em;
    font-size: min(3.75vw, 14px);
  }
  .ipost li a .title {
    padding-right: 0;
  }
  .ipost .content {
    flex-direction: column;
    align-items: center;
  }
  .ipost .ipost-btn {
    position: static;
    margin-top: 15px;
    text-align: center;
  }
  .imessage .imess-wrapper {
    padding: 50px 0;
  }
  .imessage .imess-head {
    width: 100%;
  }
  .imessage .imess-ig {
    --gap: 20px;
    position: relative;
    inset: 0;
    width: calc((100% - var(--gap)) / 2);
    font-size: 10px;
    height: 55.2083333333vw;
  }
  .imessage .imess-ig picture {
    height: 100%;
  }
  .imessage .imess-ig img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .imessage .imess-ig1 {
    margin-right: var(--gap);
  }
  .imessage .imess-ig1::before {
    font-size: 5px;
    right: -10em;
    top: -11em;
  }
  .imessage .imess-ig2::before {
    font-size: 5px;
    bottom: -13em;
  }
  .imessage .imess-ig2 .imess-info {
    right: 10px;
    left: 10px;
    text-align: right;
    margin-left: auto;
  }
  .imessage .imess-info {
    top: unset;
    bottom: -50px;
    left: 10px;
    right: 10px;
    font-size: min(calc(6 / 375 * 100vw), 8px);
    writing-mode: horizontal-tb;
    width: 20em;
    height: 13em;
    padding: 1em;
  }
  .imessage .imess-info + p {
    height: 100%;
  }
  .imessage .imess-name-jp {
    margin: 0.5em 0 0.5em;
    padding: 0.5em 0 0;
    border-right: none;
    border-top: 1px solid rgba(255, 255, 255, 0.5);
  }
  .imessage .imess-info p {
    margin-right: 0;
  }
  .imessage .imess-name-en {
    font-size: 1.7em;
  }

  .imessage .imess-txt {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  .imessage .imess-head {
    text-align: center;
    margin-bottom: 35px;
  }
  .imessage .imess-desc {
    width: 100%;
    margin: 65px 0 20px;
  }
  .imessage .imess-btn {
    flex-direction: column;
    gap: 10px;
  }
  .iclinic {
    padding: 50px 0;
  }
  .iclinic .iclinic-head {
    margin-bottom: 20px;
  }
  .iclinic .iclinic-cnt {
    flex-direction: column;
    align-items: center;
  }
  .iclinic .iclinic-ig picture {
    margin-bottom: 0;
  }
  .iclinic .iclinic-txt {
    width: 100%;
    margin-top: 20px;
  }
  .iclinic .iclinic-tbl {
    margin-bottom: 20px;
  }
  .iclinic .iclinic-tbl dl {
    font-size: min(4.0625vw, 14px);
  }
  .iclinic .iclinic-ic {
    flex-direction: column;
    align-items: flex-start;
    width: fit-content;
    padding-left: 0;
    margin-bottom: 20px;
    font-size: 9px;
    gap: 1.2em;
  }
  .iclinic .time_sheet {
    font-size: min(2.1875vw, 9px);
    margin-bottom: 20px;
  }
  .iclinic .time_sheet th:first-child,
  .iclinic .time_sheet td:first-child {
    padding-left: 0.625em;
  }
  .iclinic .time_sheet th:last-child,
  .iclinic .time_sheet td:last-child {
    width: auto;
  }
  .iclinic .iclinic-ft {
    padding-left: 0;
    font-size: 9px;
  }
  .iclinic .iclinic-map {
    margin-top: 30px;
    height: 270px;
  }
  .iclinic .ibtn {
    margin-top: 25px;
  }
  .iorthopedics {
    min-height: auto;
  }
  .iorthopedics .iort-wrapper {
    padding: 50px 0;
  }
  .iorthopedics .iort-wrapper::before {
    font-size: 7px;
    left: -90px;
  }
  .iorthopedics .iort-head {
    text-align: center;
  }
  .iorthopedics .iort-txt {
    width: 100%;
  }
  .iorthopedics .iort-head {
    margin-bottom: 15px;
  }
  .iorthopedics .iort-desc {
    margin-bottom: 20px;
  }
  .iorthopedics .iort-ig {
    position: relative;
    inset: 0;
    font-size: min(1.25vw, 6px);
    margin: 0 auto 20px;
  }
  .isport {
    padding: 50px 0;
  }
  .isport .isport-wrapper {
    flex-direction: column;
    width: 100%;
  }
  .isport .isport-txt {
    width: 100%;
    padding-top: 0;
  }
  .isport .isport-ig {
    width: 100%;
    margin: 0 auto 15px;
  }
  .isport .isport-head {
    text-align: center;
    margin-bottom: 15px;
  }
  .isport .isport-desc {
    margin-bottom: 20px;
  }
  .isport .ibtn a {
    width: 270px;
  }
  .isport .isport-list {
    margin-top: 30px;
  }
  .isport .isport-list li {
    font-size: 6px;
    transform: none !important;
  }
  .iequipment {
    padding: 50px 0;
  }
  .iequipment .iequip-head {
    margin-bottom: 25px;
  }
  .iequipment .iequip-cnt dl {
    --kc: 0px;
    margin-bottom: 30px;
    flex-direction: column;
  }
  .iequipment .iequip-cnt dt {
    width: 100%;
  }
  .iequipment .iequip-cnt dd {
    width: calc(100% - 40px);
    margin: -20px auto 0;
    padding: 20px;
    min-height: auto;
  }
  .iequipment .iequip-en {
    text-align: center;
    font-size: 17px;
    line-height: 1.3;
  }
  .iequipment .iequip-tt {
    text-align: center;
    font-size: 25px;
    margin-bottom: 5px;
    line-height: 1.4;
  }
  .iequipment .iequip-desc {
    margin-bottom: 15px;
    font-size: 14px;
  }
  .iequipment .ibtn a {
    max-width: 100%;
    font-size: 14px;
  }
  .itreatment {
    margin-bottom: 50px;
  }
  .itreatment .itreat-wrapper {
    --size-eff: 40px;
    --x-eff: 6px;
    --y-eff: 13px;
    padding: 25px 20px;
  }
  .itreatment .itreat-head {
    margin-bottom: 8px;
  }
  .itreatment .itreat-label {
    font-size: 16px;
  }
  .itreatment .itreat-title {
    font-size: 23px;
  }
  .itreatment .itreat-desc {
    font-size: 16px;
    line-height: 2;
    margin-bottom: 18px;
  }
  .itreatment .itreat-btn {
    flex-direction: column;
    gap: 15px;
    margin-bottom: 15px;
  }
  .imedical {
    padding: 50px 0 45px;
  }
  .imedical .imedical-head {
    margin-bottom: 20px;
  }
  .imedical .imedical-list {
    font-size: min(1.3333333333vw, 7px);
    gap: 10px;
    width: min(100%, 490px);
    margin: 0 auto 30px;
  }
  .imedical .imedical-list li {
    width: calc((100% - 10px) / 2);
  }
  .imedical .imedical-list a {
    padding: 1em;
    justify-content: center;
    min-height: 37em;
  }
  .imedical .imedical-list .title {
    font-size: max(2.4em, 13px);
  }
  .imedical .imedical-list .desc {
    font-size: max(1.6em, 10px);
  }
  .imedical .imedical-banner {
    width: min(100%, 370px);
  }
  .ifeature {
    padding: 50px 0;
  }
  .ifeature::before {
    height: 310px;
  }
  .ifeature::after {
    top: 290px;
    height: auto;
    bottom: -130px;
  }
  .ifeature .ifeat-head {
    margin-bottom: 20px;
  }
  .ifeature .ifeat-list {
    margin: 0 auto;
    gap: 3.5em;
    font-size: 0.78125vw;
  }
  .ifeature .ifeat-list .title {
    padding: 1.33334em;
    font-size: max(3em, 18px);
  }
  .ifeature .ifeat-list .content {
    padding: 3.4em 4em;
  }
  .ifeature .ifeat-list .content::after {
    width: 18px;
    height: 6px;
    right: 8px;
    bottom: 8px;
  }
  .ifeature .ifeat-list .stt {
    font-size: max(1.2em, 9px);
    margin-bottom: 1.6em;
  }
  .ifeature .ifeat-list .desc p {
    font-size: max(1.6em, 13px);
  }
  .ifeature .ifeat-list .content::before {
    height: 50.5em;
  }
  .ipain {
    padding: 50px 0;
  }
  .ipain::before {
    --w: min(calc(460 / 320 * 100vw), 1000px);
    width: var(--w);
    left: calc(50% - var(--w) / 2);
  }
  .ipain .ipain-head {
    margin-bottom: 30px;
  }
  .ipain .ipain-cnt {
    max-width: 100%;
    width: 560px;
    margin: 0 auto;
    font-size: min(1.5625vw, 7px);
    padding: 0;
  }
  .ipain .ipain-person {
    position: relative;
    inset: 0;
    margin-bottom: 20px;
  }
  .ipain .ipain-parts li::after {
    content: "";
    position: absolute;
    top: var(--t);
    left: calc(var(--w) * -1 + var(--dataY) + var(--kc));
    width: 1px;
    height: var(--h);
    background-color: var(--main-color);
  }
  .ipain .ipain-parts [data-part="shoulder"] {
    --w: 21.8em;
    --h: 60.1em;
    --kc: 3px;
    --t: 96%;
  }
  .ipain .ipain-parts [data-part="neck"] {
    --w: 21.8em;
    --h: 60.1em;
    --kc: 3px;
    --t: 97%;
  }
  .ipain .ipain-parts [data-part="neck"]::before {
    transform: rotate(-11deg);
  }
  .ipain .ipain-parts [data-part="back"] {
    --h: 40em;
    --kc: 1px;
    --t: 63%;
  }
  .ipain .ipain-parts [data-part="upper-limb"] {
    --w: 29em;
    --h: 40em;
    --kc: 1px;
    --t: 77%;
  }
  .ipain .ipain-parts [data-part="upper-limb"]::before {
    transform: rotate(-5deg);
  }
  .ipain .ipain-parts [data-part="lower-back"] {
    --h: 30em;
    --kc: 2.4em;
    --t: 166%;
  }
  .ipain .ipain-parts [data-part="hip-joint"] {
    --w: 29em;
    --h: 50em;
    --kc: 2.1em;
    --t: -78%;
  }
  .ipain .ipain-parts [data-part="knee"] {
    --w: 20em;
    --h: 20em;
    --kc: 1em;
    --t: 124%;
  }
  .ipain .ipain-parts [data-part="lower-limb"] {
    --h: 20em;
    --kc: 0px;
    --t: 58%;
  }
  .ipain .ipant-item {
    font-size: 1.4em;
    gap: 0;
  }
  .ipain .ipant-item li {
    display: none;
    width: 100%;
    height: 8em;
    --w: 21em;
  }
  .ipain .ipant-item li.active {
    display: flex;
  }
  .ipain .ipant-item li::before {
    font-size: 10px;
  }
  .ipain .ipant-list {
    padding-left: 2em;
  }
  .ipain .ipant-list span {
    margin-bottom: 0.2em;
  }
  .ipain .ipant-list span::before {
    width: 4px;
    height: 4px;
  }
  .ipain .ipant-item-sp {
    display: flex;
  }
  .home_page .key .imvs-head p {
    line-height: 1.6;
  }
  .home_page .key .imvs-list {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
    font-size: min(calc(5.2 / 320 * 100vw), 7px);
    width: 53.84615384615385em;
    max-width: 100%;
    margin: 0 auto;
  }

  .home_page .key .imvs-list .imvs-item2 {
    margin-left: -1.923076923076923em;
    z-index: 1;
  }
  .home_page .key .imvs-list .imvs-item3 {
    margin-top: -4.8076923076923075em;
    z-index: 2;
  }

  .home_page .key .imvs-num {
    top: 0.367em;
    right: 2.367em;
    font-size: 2.7em;
  }

  .home_page .key .imvs-icon {
    width: 5em;
  }

  .home_page .key .imvs-tt {
    font-size: 2em;
  }
  .home_page .key .imvs-head{
    margin-bottom: 4em;
  }
}
@media only screen and (max-width: 639px) {
  /* .imessage .imess-info {
    font-size: 0.9389671362vw;
    top: -10px;
  }
  .imessage .imess-ig {
    --gap: 10px;
  } */
  /* .imessage .imess-ig1 .imess-info {
    left: 0;
  }
  .imessage .imess-ig2 .imess-info {
    right: 0;
  } */
  .isport .isport-list li {
    width: 50%;
  }
  .isport .isport-list li:nth-child(2n + 1)::before {
    opacity: 0;
  }
  .isport .isport-list li:nth-child(1n + 3) {
    border-top: 1px solid var(--main-color2);
  }
  .ifeature .ifeat-list {
    grid-template-columns: 1fr;
    font-size: min(1.5625vw, 7px);
    width: min(100%, 56em);
  }
}
@media only screen and (max-width: 374px) {
  .imessage .imess-head h3 br:not([class]) {
    display: none;
  }
  .imessage .imess-info {
    font-size: 7px;
    margin: 0 auto;
    text-align: center !important;
  }
  .imessage .imess-ig {
    font-size: 10px;
    width: min(100%, 400px);
    height: auto;
    margin: 0 auto;
  }
  .imessage .imess-ig img {
    width: auto;
    height: auto;
  }
  .imessage .imess-ig1 {
    margin-bottom: 75px;
  }
  .imedical .imedical-list {
    flex-direction: column;
    font-size: 8.5px;
    align-items: center;
  }
  .imedical .imedical-list li {
    width: min(100%, 280px);
  }
  .iequipment .iequip-tt {
    font-size: 20px;
  }
  .iequipment .ibtn a {
    font-size: 13px;
  }
  .ifeature .ifeat-list .title {
    padding: 1.23334em;
    font-size: 16px;
  }
}