.top_img {
  background: url(../img/3-1/top.png) no-repeat center center;
}
.banner {
}
.banner_left p {
  /* width: 90% !important; */
}
section:nth-child(6) {
  background: url(../img/3-2/center.png) no-repeat center center;
  height: 1050px;
  width: 100%;
}
section:nth-child(7) {
}
.last {
  display: flex;

  width: 100%;
}
.last > div {
  width: 50%;
}
.last > div > * {
  margin-bottom: 3%;
}
.last > div img {
  width: 100%;
}
.last > div h1 {
  font-size: 100px;
  color: #d8d8d8;
}
.last > div h4 {
  font-size: 30px;
  font-weight: bold;
  margin: 5% 0 !important;
}
.last > div p {
  font-size: 18px;
  width: 90%;
  line-height: 1.5em;
}

@media (max-width: 768px) {
  section:nth-child(6) {
    margin-top: 5%;
    margin-bottom: 50px;
    background-size: cover !important;
    background: url(../img/m/3-2/center.png) no-repeat center center;
    height: 0;
    padding-top: 158%;
  }
  .last {
    flex-direction: column;
  }
  .last > div {
    width: 100%;
  }
  .last > div img {
    width: 100%;
  }
  .last > div img p {
    width: 95%;
    font-size: 20px;
  }
}