@media screen and (max-width: 780px) {
  /*-----------------------------------------
  main_visual
  -----------------------------------------*/
  .main_visual {
    height: 75dvh;
    min-height: auto;
    max-height: none;
  }
  .main_visual .inr::before {
    width: 120vw;
  }
  .main_visual .inr::after {
    left: 10vw;
  }
  .main_visual .inr .train figure, .main_visual .inr .train2 figure {
    width: 150vw;
  }
  .main_visual .inr .train figure img, .main_visual .inr .train2 figure img {
    transform: scale(1);
  }
  .main_visual::after {
    width: 80%;
  }
  .main_visual .inr .txt h2 {
    font-size: min(4.5vw, 18px);
  }
  /*-----------------------------------------
  news_sec
  -----------------------------------------*/
  .news_sec .inr {
    flex-flow: column;
    justify-content: left;
    align-items: baseline;
  }
  .news_sec .inr .txt {
    width: 90%;
    border-right: none;
  }
  .news_sec .inr .txt .ttl {
    align-items: center;
    display: flex;
    margin-bottom: 20px;
  }
  .news_sec .inr .txt .ttl h2 {
    font-size: min(6vw, 40px);
    padding-right: 0.5em;
  }
  .news_sec .inr .cont {
    padding-left: 0px;
    padding-bottom: 20px;
    width: 100%;
  }
  .news_sec .inr .cont dl {
    flex-flow: column;
    align-items: start;
    margin-bottom: 1em;
  }
  .news_sec .inr .cont dl dt {
    width: 100%;
  }
  .news_sec .inr .cont dl dd {
    font-size: 1em;
    padding-left: 0;
    width: 100%;
  }
  /*-----------------------------------------
  product_sec
  -----------------------------------------*/
  .product_sec .txt {
    padding-right: 0;
  }
  .product_sec .txt .info {
    width: 100%;
    text-align: left;
  }
  .product_sec .txt .btn {
    margin: 20px auto;
  }
  .product_sec .img {
    width: 100%;
    margin-top: 20px;
    margin-bottom: 30px;
  }
  .product_sec .img div {
    transition: all 1s ease 0.5s;
  }
  .product_sec .img div:nth-child(1) {
    width: 80%;
  }
  .product_sec .img div:nth-child(2) {
    width: 85%;
    margin-top: 0%;
  }
  .product_sec .img div:nth-child(3) {
    width: 90%;
    margin-top: -5%;
  }
  /*-----------------------------------------
  machinery_sec
  -----------------------------------------*/
  .machinery_sec .inr {
    position: relative;
  }
  .machinery_sec .inr .txt {
    width: 100%;
    padding-left: 0;
  }
  .machinery_sec .inr .txt .btn {
    margin: 20px auto;
  }
  .machinery_sec .inr .movie {
    width: 90%;
    position: unset;
    margin: 20px auto 0 auto;
  }
  .machinery_sec .marquee li {
    flex: 0 0 250px;
  }
  /*-----------------------------------------
  company_sec
  -----------------------------------------*/
  .company_sec .img figure {
    position: unset;
    width: 80%;
    max-width: 500px;
    margin-left: auto;
  }
  .company_sec .inr {
    display: block;
    justify-content: end;
  }
  .company_sec .txt {
    width: 100%;
    height: 100%;
  }
  .company_sec .txt .btn {
    margin: 30px auto 0 auto;
  }
  .company_sec .txt::before {
    width: 60vw;
    height: 40vw;
    left: -15px;
    top: 0px;
  }
  /*-----------------------------------------
  recruit_sec
  -----------------------------------------*/
  .recruit_sec {
    margin-top: 40px;
  }
  .recruit_sec .inr .txt {
    width: 90%;
  }
  .recruit_sec .inr .txt .info {
    flex-flow: column;
  }
  .recruit_sec .inr .txt .info .btn {
    width: 100%;
    margin: 30px auto;
  }
  .recruit_sec .recruit_bg .recruit_row .recruit_bg_content li {
    flex: 0 0 60%;
  }
  /*-----------------------------------------
  our_people_sec
  -----------------------------------------*/
  .our_people_sec::after {
    right: -20vw;
    top: 0;
    background: url("../images/top/main_logo_mask.svg") no-repeat top left;
    background-size: cover;
  }
  .our_people_sec .list li {
    flex-flow: column;
  }
  .our_people_sec .list li a {
    padding: 10px 10px 0 10px;
  }
  .our_people_sec .list li .illust {
    position: relative;
    margin: 0 auto;
    width: 45%;
    top: -40px;
  }
  .our_people_sec .list li .info {
    position: relative;
    top: -30px;
    width: 100%;
    padding: 0;
  }
  .our_people_sec .list li .info .case p, .our_people_sec .list li .info .case h5 {
    text-align: center;
  }
  .our_people_sec .img {
    flex-flow: column;
  }
  .our_people_sec .img li {
    max-width: 600px;
    width: 70%;
    margin: 10px auto;
  }
  .our_people_sec .img li dl dt {
    font-size: min(3.5vw, 15px);
  }
  .our_people_sec .img li p {
    position: absolute;
    left: 4%;
    bottom: 5%;
    font-weight: bold;
    font-size: clamp(10px, 4.5vw, 30px);
    color: #ea5441;
  }
  .our_people_sec .img li::after {
    content: "";
  }
}