.top_img {
  background: url(../img/2-1/top_01.png) no-repeat center center;
}
.last {
  /*height: 1150px;*/
  margin-bottom: 150px;
}

#footer {
  /* margin-top: 38%; */
}

/* *****************************mobile***************************** */
@media (max-width: 1768px) {
  .tabs {
    /* height: 250px; */
  }
}
@media (max-width: 1441px) {
  .tabs {
    /* height: 350px; */
  }
}
@media (max-width: 768px) {
  section:nth-child(2n) {
    width: 90%;
    margin: 0 auto;
  }
  section:nth-child(3n) {
    width: 90%;
    margin: 0 auto;
  }
  .banner_text {
    flex-direction: column;
  }
  .banner_text .banner_left {
    width: 100%;
    margin-bottom: 5%;
  }

  .banner_text .banner_right {
    width: 100%;
  }
  .main_title {
    margin: 10% 0 5% 0;
    line-height: 3.5em;
  }
  .main_title img {
    display: none;
  }
  .main_img .main_imge {
    display: flex;
    flex-direction: column;
  }
  .main_img .main_imge:nth-child(2) {
    flex-direction: column;
  }
  .main_img .main_imge img {
    width: 100%;
  }
  .main_img .main_text {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    /* padding: 5% 3%; */
    width: 100%;
  }
  .main_img .main_text p {
    /* width: 60%; */
  }
  .even .main_text {
    text-align: end;
    padding: 0;
  }
  .even .main_text p {
    margin-left: auto;
  }
  .main_img .main_text span {
    font-size: 30px;
    margin: 5% 0;
  }
  .last {
    width: 90%;
    margin: 0 auto;
  }
  .last_title {
    width: 100%;
  }
  .tabs {
    /*height: 1000px;*/
  }
  .tabs > div {
    flex-direction: column;
  }
  .tabs > div img {
    width: 100%;
  }
  .tab_text {
    width: 95%;
  }
  .tab_text h1 {
    margin-left: 3%;
  }
  .tab_text p:nth-child(2) {
    width: 95%;
    margin: 5% 0;
  }
  .tab_text img {
    display: none;
  }
  #footer {
    margin-top: 20%;
  }
}
@media (max-width: 375px) {
  .tabs {
    /* height: 1550px; */
  }
  #footer {
    margin-top: 20%;
  }
}