/* banner */
.banner dl {
  position: relative;
}
.banner dt {
  font-size: 0;
}
.banner dt img {
  width: 100%;
}
.banner dd {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1200px;
  margin: 0 auto;
  /* white-space: nowrap; */
}
.banner_intro .title {
  font-size: 34px;
  line-height: 1;
}
.banner_intro .brief {
  font-size: 20px;
  padding: 24px 0 34px;
  line-height: 1.8;
  text-align: justify;
}

.banner_intro span {
  display: block;
  max-width: 540px;
}

.banner_intro .button {
  width: 120px;
  height: 38px;
  line-height: 38px;
  background-color: #c59e3f;
  border-radius: 4px;
  font-size: 16px;
  color: #fff;
  text-align: center;
  display: block;
  margin-top: 15px;
}

.banner_intro .button_group {
  display: flex;
  align-items: center;
}

.banner_intro .button_group h6 {
  margin-right: 14px;
}

@media screen and (max-width: 768px) {
  .banner dt img {
    height: 240px;
  }
  .banner dd {
    width: auto;
    padding: 0 15px;
    text-align: center;
    z-index: 1;
  }
  .banner_intro .title {
    font-size: 20px;
  }
  .banner_intro .brief {
    font-size: 16px;
    padding: 12px;
    text-align: center;
  }
  .banner_intro .button {
    width: 84px;
    height: 30px;
    line-height: 30px;
    font-size: 14px;
    margin: 0 auto;
  }

  .banner_intro .button_group .button {
    margin: 0 8px;
  }

  .banner_intro .button_group {
    justify-content: center;
  }
}

/* 解决方案,核心技术 */
.banner_solve dd,
.banner_technology dd {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 34px;
  font-family: Arial;
  color: #fff;
  line-height: 1;
  white-space: nowrap;
  text-align: center;
  width: auto;
  margin: 0;
}

.banner_solve dd em,
.banner_technology dd em {
  color: #c59e3f;
}

.banner_technology dd u {
  font-size: 22px;
  padding-top: 18px;
  display: block;
}

@media screen and (max-width: 768px) {
  .banner_solve dd,
  .banner_technology dd {
    font-size: 20px;
    white-space: normal;
    line-height: 1.6;
  }

  .banner_technology dd u {
    font-size: 16px;
    padding-top: 12px;
  }
}