.mv {
  position: relative;
  overflow: hidden;
  background: none;
}

.mv:after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.22);
  z-index: 1;
}

.mv .mv_swiper {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.mv .swiper-wrapper,
.mv .swiper-slide {
  height: 100%;
}

.mv .swiper-slide {
  overflow: hidden;
}

.mv .mv_slide_bg {
  width: 100%;
  height: 100%;
  background: transparent center no-repeat;
  background-size: cover;
  -webkit-transform: scale(var(--mv-scale, 1.16));
          transform: scale(var(--mv-scale, 1.16));
  -webkit-transition: -webkit-transform 10s ease-out;
  transition: -webkit-transform 10s ease-out;
  transition: transform 10s ease-out;
  transition: transform 10s ease-out, -webkit-transform 10s ease-out;
}

.mv .swiper-slide-active .mv_slide_bg,
.mv .swiper-slide-duplicate-active .mv_slide_bg {
  -webkit-transform: scale(1);
          transform: scale(1);
}

.mv .mv_slide_bg.slide01 {
  --mv-scale: 1.2;
  background-image: url(images/common/mv1-7126.png);
}

.mv .mv_slide_bg.slide02 {
  --mv-scale: 1.24;
  background-image: url(images/common/mv2-7169.png);
}

.mv .mv_slide_bg.slide03 {
  --mv-scale: 1.18;
  background-image: url(images/common/mv3-7077.png);
}

.mv .mv_slide_bg.slide04 {
  --mv-scale: 1.22;
  background-image: url(images/common/mv4-7163.png);
}

.mv .mv_inner {
  position: relative;
  z-index: 2;
}

@media only screen and (max-width: 1300px), only screen and (max-device-width: 735px) and (orientation: landscape) {
  .mv .mv_inner {
    width: 100%;
  }
}


.main_about {
  background-image: url(images/common/main_about.png);
  padding: 200px 0;
}

.main_examination {
  background-image: url(images/common/main_examination.png);
  padding: 200px 0;
}
@media screen and (max-width: 768px) {
  .main_about,
  .main_examination {
    padding: 100px 0;
  }
}

.about_block1 .about_profile_box {
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
  gap: 40px;
}

.about_block1 .about_profile_box .img {
  width: 480px;
  max-width: 100%;
  -webkit-box-flex: 0;
      -ms-flex: 0 0 480px;
          flex: 0 0 480px;
}

.about_block1 .about_profile_box .img img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  -o-object-fit: cover;
     object-fit: cover;
}

.about_block1 .about_profile_box .txt {
  width: calc(100% - 520px);
}

@media only screen and (max-width: 1300px), only screen and (max-device-width: 735px) and (orientation: landscape) {
  .about_block1 .about_profile_box {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }

  .about_block1 .about_profile_box .img {
    width: 100%;
    max-width: 480px;
    -webkit-box-flex: 0;
        -ms-flex: none;
            flex: none;
    -webkit-box-ordinal-group: 3;
        -ms-flex-order: 2;
            order: 2;
    margin: 0 auto;
  }

  .about_block1 .about_profile_box .txt {
    width: auto;
    -webkit-box-ordinal-group: 2;
        -ms-flex-order: 1;
            order: 1;
    margin-top: 0;
    margin-bottom: 20px;
  }
}