.title-one span {
  font-size: 1.4em;
  border-bottom: 4px solid #333;
  display: inline-block;
}
.big-txt {
  margin-top: 20px;
  line-height: 1.5em;
}
.color-box {
  padding: 30px;
  margin-top: 30px;
  color: #fff;
}
.color-box p {
  margin-top: 20px;
}
.science-video-box {
  background: #006ac3;
  min-height: 350px;
}
.science-img-box {
  background: #f49b43;
  min-height: 350px;
}
.science-article-box {
  background: #71c6d8;
}
.color-box span {
  border-bottom-color: #fff;
}
@media (max-width: 1199px) {
  .science-video-box {
    min-height: 460px;
  }
}
@media (max-width: 991px) {
  .color-box {
    padding: 15px;
  }
  .color-box {
    min-height: auto;
  }
}
@media (max-width: 500px) {
  .color-box {
    margin-top: 15px;
  }
}

.zhanting-intro {
  position: relative;
  background-color: #4da9d9;
  padding: 20px;
}

.zhanting-intro-txt {
  padding: 20px;
  color: #fff;
}

.zhanting-intro-txt h1 {
  display: inline-block;
  border-bottom: 4px solid #fff;
  padding-bottom: 6px;
}

.zhanting-intro-txt p {
  line-height: 1.5em;
  margin-top: 20px;
  font-size: 16px;
}
.zhanpin-line {
  display: flex;
  justify-content: space-between;
}