@media (min-width: 992px) and (max-width: 1200px) {
  body .txt-box img {
    width: 900px;
  }
}
@media (min-width: 768px) and (max-width: 991px) {
  body .pic h3 {
    font-size: 30px;
  }
  body .pic p {
    font-size: 16px;
  }
  body .txt-box img {
    width: 710px;
  }
  body .txt-box h3 {
    font-size: 26px;
  }
  body .txt-body-box .txt-con-box {
    font-size: 16px;
  }
  body .txt-btm-box p {
    font-size: 16px;
  }
}
@media (max-width: 768px) {
  body .pic h3 {
    font-size: 22px;
  }
  body .pic p {
    font-size: 12px;
  }
  body .txt-box img {
    width: 340px;
  }
  body .txt-box h3 {
    font-size: 18px;
    margin: 30px 0;
  }
  body .txt-body-box .txt-con-box {
    font-size: 14px;
  }
  body .txt-btm-box p {
    font-size: 14px;
  }
}
.pic {
  margin-top: 30px;
}
.pic h3 {
  font-size: 36px;
}
.pic p {
  color: #ccc;
  font-size: 18px;
}
.txt-box img {
  width: 1100px;
}
.txt-box h3 {
  font-size: 30px;
  margin: 30px 0;
}
.txt-body-box .txt-img-box {
  margin: 10px 0;
  text-align: center;
  margin: 0 auto;
}
.txt-body-box .txt-con-box {
  margin-top: 10px;
  font-size: 18px;
}
.txt-btm-box {
  margin: 30px 0;
}
.txt-btm-box p {
  font-size: 18px;
}