.top_img {
  background: url(../img/5-3/top.png) no-repeat center center;
}
.banner {
  width: 100%;
}
section:nth-child(5) {
}
section:nth-child(6) {
  /* border: 1px solid #000; */
  /* position: relative; */
  text-align: center;
}
section:nth-child(6) p {
  margin-top: 5%;
  font-size: 25px;
  line-height: 1.5em;
  font-family: "NotoSansJP-Light";
}
section:nth-child(6) img:last-child {
  /* border: 1px solid #000; */
  margin: 0 auto;
  width: 100%;
}
section:nth-child(7) {
  text-align: center;
}
section:nth-child(7) img {
  display: inline-block;
}
section:nth-child(7) p {
  width: 100%;
  margin-top: 2%;
  font-size: 25px;
  line-height: 1.5em;
}
section:nth-child(8) {
}
.doctor_img img {
  margin-bottom: 5%;
}
section:nth-child(9) {
  /* border: 1px solid #000; */
  text-align: center;
}
section:nth-child(9) h1 {
  font-size: 55px;
  font-weight: bold;
  margin-top: 7%;
}
section:nth-child(9) p {
  margin-top: 3%;
  font-size: 25px;
}
section:nth-child(9) img {
  /* width: 80%; */
  margin: auto;
}

@media (max-width: 768px) {
  img {
    width: 100%;
  }
  .banner {
    width: 90%;
  }
  .banner h1 {
    /*font-size: 48px;*/
  }
  section:nth-child(6) p {
    font-size: 22px;
  }
  section:nth-child(7) p {
    font-size: 20px;
  }
  .center_img img {
    /*width: 40%;*/
    margin-bottom: 40px;
  }
  section:nth-child(8) {
    width: 90%;
  }
  .doctor_img img {
    width: 50%;
  }

  .doctor_img img:nth-child(2),
  .doctor_img img:nth-child(3),
  .doctor_img img:nth-child(5) {
    width: 100%;
  }
  #footer {
    margin-top: 5%;
  }
}
@media (max-width: 768px) {
  section:nth-child(9) h1 {
    font-size: 30px;
    margin-top: 7%;
  }
  section:nth-child(9) p {
    margin-top: 10%;
    font-size: 18px;
  }
}