#section1 {
  margin-bottom: 350px;
}

#section1 .inner {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 40px;
}

#section1 .section {
  width: calc(50% - 20px);
  height: 800px;
}

#section1 .left_section {
  position: relative;
}

#section1 .left_section img {
  position: absolute;
  top: 45%;
  left: 50%;
  transform: translate(-50%,-50%);
  opacity: 0;
}

#section1 .left_section img.doctor {
  top: 40%;
}

#section1 .left_section.aos-animate img.emblem {
  animation: fadeUp .8s ease-in-out both;
}

#section1 .left_section.aos-animate img.doctor {
  animation: fadeUp 1s ease-in-out both;
}

#section1 .right_section {
  text-align: left;
}

#section1 .right_section .title {
  font-family: 'pretendardBold';
  font-size: 42px;
  margin-bottom: 20px;
  line-height: 1.3;
}

#section1 .right_section .desc {
  font-size: 20px;
  line-height: 1.5;
  color: #535353;
  margin-bottom: 70px;
  letter-spacing: -.5px ;
}

@keyframes fadeUp {
  0% {
    opacity: 0;
    margin-top: 100px;
  }
  100% {
    opacity: 1;
    margin-top: 0;
  }
}

#section1 .history_box {
  width: 700px;
  background-color: #f6f7f8;
  border-radius: 16px;
  padding: 40px;
}

#section1 .history_box .name {
  font-family: 'pretendardMedium';
  font-size: 26px;
}

#section1 .history_box .name span {
  font-family: 'pretendardSemibold';
  font-size: 32px;
}

#section1 .history_box .history {
  display: flex;
  gap: 20px;
  margin: 20px 0;
  color: #535353;
}

#section1 .history_box .history p {
  line-height: 1.5;
}

#section1 .history_box .thesis {
  font-size: 18px;
  color: #7d7d7d;
  line-height: 1.5;
}

@media screen and (max-width: 768px) {
  #mainBanner {
    margin-top: 100px;
  }
  
  #section1 .inner {
    flex-direction: column-reverse;
  }

  #section1 .section {
    width: 100%;
    height: auto;
  }

  #section1 .section.left_section {
    height: 700px;
  }

  #section1 .left_section img {
    width: 100%;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
  }

  #section1 .left_section img.doctor {
    top: 0;
    width: 300px;
    left: 50%;
  }

  #section1 .history_box {
    width: 100%;
    background-color: #f6f7f8;
    border-radius: 6px;
    padding: 40px 30px;
    position: absolute;
    top: 73%;
  }

  #section1 .history_box .name {
    text-align: left;
    display: flex;
    gap: 20px;
    align-items: center;
    font-size: 16px;
  }

  #section1 .history_box .name span {
    font-size: 22px;
  }

  #section1 .history_box .history {
    flex-direction: column;
    text-align: left;
    gap: 0;
  }

  #section1 .history_box .thesis {
    font-size: 14px;
    text-align: left;
  }

  #section1 .right_section .title {
    font-size: 28px;
    margin-bottom: 10px;
  }

  #section1 .right_section .desc {
    font-size: 16px;
    margin-bottom: 30px;
  }
}