body {
  background: #f3f6fa;
}
.section1 {
  font-size: 0;
  position: relative;
}
.section1 img {
  width: 100%;
}
.section1-con {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 0;
  width: 100%;
}
.section1-con-title1 {
  color: #0068fb;
  font-size: 40px;
  font-weight: 700;
}
.section1-con-title2 {
  font-size: 24px;
  margin-top: 20px;
  text-transform: uppercase;
}
/* -------------------------------section2------------------------------- */

/* -------------------------------section3------------------------------------ */
.section3 {
  background: #f3f6fa;
  padding: 40px 0 80px 0;
}
.section3-top {
  background-image: url(/Upload/images/successCases/st2-1.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  padding: 40px 0 32px 0;
  background-position: center center;
}
.section3-top-title1 {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.section3-top-title2 {
  text-align: center;
  font-size: 16px;
  margin-bottom: 16px;
  color: #666;
}
.section3-top-search {
  margin: 0 auto;
  display: block;
  position: relative;
  width: 400px;
}
.section3-top-search input {
  border: none;
  background: #d5e8fd;
  line-height: 20px;
  border-radius: 20px;
  padding: 10px 80px 10px 20px;
  width: 100%;
  outline: none;
}
.section3-top-search-btn {
  position: absolute;
  right: 10px;
  border-radius: 15px;
  height: 32px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 54px;
  background: #0068fb;
  outline: none;
  cursor: pointer;
}
.section3-top-search-btn img {
  width: 18px;
}

.section3-bot {
  display: flex;
  margin-top: 40px;
}
.section3-bot-left {
  width: 300px;
  margin-right: 30px;
  flex-grow: 0;
  flex-shrink: 0;
}
.section3-bot-right {
  flex-grow: 0;
  flex-shrink: 0;
  width: calc(100% - 330px);
  overflow: hidden;
}
.section3-bot-right-title {
  position: relative;
  padding-left: 10px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
}
.section3-bot-right-title::before {
  content: '';
  position: absolute;
  left: 0;
  height: 100%;
  width: 3px;
  background-color: #0068fb;
}
.section3-bot-right-con {
  width: calc(100% + 24px);
  margin-left: -24px;
  font-size: 0;
}
.section3-bot-right-item {
  display: inline-block;
  margin-left: 24px;
  margin-bottom: 24px;
  width: calc(33.333% - 24px);
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  vertical-align: text-top;
}
.section3-bot-right-item-top {
  overflow: hidden;
  font-size: 0;
  height: 200px;
}
.section3-bot-right-item-top img {
  height: 100%;
  width: 100%;
  transition: all 0.2s;
  object-fit: cover;
}
.section3-bot-right-item:hover .section3-bot-right-item-top img {
  transform: scale(1.1);
}
.section3-bot-right-item-bot {
  padding: 16px 20px 20px 20px;
}
.section3-bot-right-item-bot-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.section3-bot-right-item-bot-content {
  line-height: 24px;
  margin-bottom: 14px;
  font-size: 14px;
}
.section3-bot-right-item-bot-more {
  display: flex;
  align-items: center;
  font-size: 0;
}
.section3-bot-right-item-bot-more span {
  font-size: 14px;
}
.section3-bot-right-item-bot-more img {
  vertical-align: middle;
  width: 16px;
}
.section3-bot-left-item {
  display: flex;
  width: 100%;
  height: 50px;
  align-items: center;
  padding: 0 24px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}
.section3-bot-left-item.active {
  background-color: #0068fb;
  color: #fff;
}
.section3-bot-left-item img {
  margin-right: 10px;
  width: 18px;
}
.section3-bot-left-item .img1 {
  
   display: block;
}
.section3-bot-left-item .img2 {
 display: none;
}
.section3-bot-left-item.active .img1 {
  
  display: none;
}
.section3-bot-left-item.active .img2 {
  display: block;
}

.ceile .section3-bot-left{
        position: fixed;
    top: 74px;
}
.ceile .section3-bot-right{
    margin-left: 330px;
}
@media screen and (max-width: 1200px) {
  .section1 {
    height: 150px;
  }
  .section1 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .section1-con-title1 {
    font-size: 24px;
  }
  .section1-con-title2 {
    font-size: 16px;
    margin-top: 14px;
  }
  /* -------------------------------section2------------------------------- */

  /* -------------------------------section3------------------------------------ */
  .section3 {
    padding: 20px 0 40px 0;
  }
  .section3-top {
    padding: 20px 10px;
  }
  .section3-top-title1 {
    font-size: 18px;
    margin-bottom: 10px;
  }
  .section3-top-title2 {
    font-size: 14px;
    margin-bottom: 12px;
  }
  .section3-top-search {
    width: 100%;
  }
  .section3-bot {
    flex-wrap: wrap;
    margin-top: 20px;
  }
  .section3-bot-left {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
  }
  .section3-bot-left-item {
    width: 50%;
    height: 40px;
    padding: 0 12px;
    border-radius: 6px;
    font-size: 14px;
  }
  .section3-bot-right {
    width: 100%;
    margin-top: 20px;
  }
  .section3-bot-right-title {
    font-size: 16px;
  }
  .section3-bot-right-item {
    width: 100%;
    margin-left: 0;
  }
  .section3-bot-right-con {
    width: 100%;
    margin: 0;
  }
  .section3-bot-right-item-top {
    height: 140px;
  }
  .section3-bot-right-item-bot {
    padding: 14px;
  }
  .section3-bot-right-item-bot-title {
    font-size: 16px;
    margin-bottom: 8px;
  }
  .section3-bot-right-item-bot-content {
    line-height: 20px;
    margin-bottom: 8px;
    font-size: 14px;
  }
}