.banner {
  height: 480px;
  width: 100%;
  background: url(../pic/case/case_banner_bg.jpg) no-repeat center;
  background-size: cover;
}
.banner h1 {
  font-size: 36px;
  color: #fff;
  padding-top: 140px;
  line-height: 36px;
}
.banner .advantage-content {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  line-height: 48px;
}
.banner .advantage-content p:nth-child(1)::before {
  content: url(../pic/case/header-icon-user.png);
  vertical-align: -8%;
  margin-right: 16px;
}
.banner .advantage-content p:nth-child(2)::before {
  content: url(../pic/case/header-icon-shuju.png);
  vertical-align: -8%;
  margin-right: 16px;
}
.banner .advantage-content p:nth-child(3)::before {
  content: url(../pic/case/header-icon-place.png);
  vertical-align: -8%;
  margin-right: 16px;
}
.banner .advantage-content p:nth-child(4)::before {
  content: url(../pic/case/header-icon-jiaohu.png);
  vertical-align: -8%;
  margin-right: 16px;
}
.tab-bar {
  background: #fff;
  box-shadow: 0 2px 10px rgba(102, 102, 102, 0.2);
}
.tab-bar .nav-tabs {
  height: 48px;
  display: flex;
  justify-content: space-between;
  border: none;
}
.tab-bar .nav-tabs li {
  flex: 1;
  margin: 0;
}
.tab-bar .nav-tabs li a {
  margin: 0;
  border-radius: 0;
  border: none;
  color: #666;
  padding: 0;
  font-size: 16px;
  line-height: 48px;
  text-align: center;
  cursor: pointer;
}
.tab-bar .nav-tabs li a:hover {
  color: #fff;
  font-weight: bold;
  border: none;
  background: linear-gradient(right, #17c1ff, #353aff);
  background: -ms-linear-gradient(right, #17c1ff, #353aff);
  background: -webkit-linear-gradient(right, #17c1ff, #353aff);
  background: -o-linear-gradient(right, #17c1ff, #353aff);
  background: -moz-linear-gradient(right, #17c1ff, #353aff);
}
.tab-bar .nav-tabs li.active a {
  border: none;
  font-weight: bold;
  color: #fff;
  background: linear-gradient(right, #17c1ff, #353aff);
  background: -ms-linear-gradient(right, #17c1ff, #353aff);
  background: -webkit-linear-gradient(right, #17c1ff, #353aff);
  background: -o-linear-gradient(right, #17c1ff, #353aff);
  background: -moz-linear-gradient(right, #17c1ff, #353aff);
}
.tab-bar .nav-tabs li.active a:hover {
  color: #fff;
  font-weight: bold;
  border: none;
}
.tab-content {
  background-color: #eff1f5;
}
.tab-content .active {
  padding-bottom: 100PX;
}
.tab-content .active section {
  margin-top: 148px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(102, 102, 102, 0.3);
}
.tab-content .active section .row {
  margin: 0;
}
.tab-content .active section .pic-wrapper {
  margin-top: -30px;
  padding: 0 20px 40px;
}
.tab-content .active section .pic-wrapper img {
  width: 100%;
}
.tab-content .active section .introduce-wrapper {
  position: relative;
  height: 386px;
  justify-content: space-between;
  padding: 40px 55px 40px 35px;
}
.tab-content .active section .introduce-wrapper h2 {
  font-weight: bold;
  font-size: 20px;
}
.tab-content .active section .introduce-wrapper p {
  font-size: 14px;
  color: #666666;
  margin-top: 20px;
  line-height: 30px;
  text-align: justify;
}
.tab-content .active section .introduce-wrapper a {
  display: block;
  border: solid 1px rgba(34, 144, 255, 0.8);
  color: #228eff;
  font-size: 14PX;
  width: 120px;
  line-height: 40px;
  text-align: center;
  position: absolute;
  bottom: 42px;
}
.tab-content .active section .introduce-wrapper a:hover {
  color: #fff;
  font-weight: bold;
  padding: 1px;
  border: solid 0 rgba(34, 144, 255, 0);
  background: linear-gradient(right, #17c1ff, #353aff);
  background: -ms-linear-gradient(right, #17c1ff, #353aff);
  background: -webkit-linear-gradient(right, #17c1ff, #353aff);
  background: -o-linear-gradient(right, #17c1ff, #353aff);
  background: -moz-linear-gradient(right, #17c1ff, #353aff);
}
@media screen and (max-width: 1199px) {
  .tab-content .active section .introduce-wrapper {
    height: 310px;
  }
  .tab-content .active section .introduce-wrapper p {
    position: relative;
    height: 90px;
    overflow: hidden;
  }
  .tab-content .active section .introduce-wrapper p::before {
    content: '...';
    display: block;
    position: absolute;
    bottom: 0;
    right: 0;
    width: 15px;
    height: 30px;
    margin-left: 20px;
    font-weight: bold;
    background-color: #ffffff;
  }
}
@media screen and (max-width: 997px) {
  .tab-content .active {
    padding-bottom: 70px;
  }
  .tab-content .active section {
    margin-top: 100px;
  }
  .tab-content .active section .pic-wrapper {
    margin-top: -30px;
    padding-left: 35px;
    padding-right: 35px;
    padding-bottom: 0;
  }
  .tab-content .active section .introduce-wrapper {
    height: 100%;
    padding: 40px 35px 40px 35px;
  }
  .tab-content .active section .introduce-wrapper p {
    position: relative;
    height: 100%;
    overflow: hidden;
  }
  .tab-content .active section .introduce-wrapper p::before {
    content: '...';
    display: none;
  }
  .tab-content .active section .introduce-wrapper a {
    position: relative;
    bottom: 0;
    margin-top: 30px;
  }
}
@media screen and (max-width: 767px) {
  .banner {
    height: 300px;
    width: 100%;
    background: url(../pic/case/case_banner_bg.jpg) no-repeat 80%;
    background-size: cover;
  }
  .banner h1 {
    padding-top: 220px;
    text-align: center;
    font-size: 24px;
  }
  .banner .advantage-content {
    display: none;
  }
  .tab-bar .nav-tabs {
    overflow-x: auto;
    white-space: nowrap;
  }
  .tab-bar .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  .tab-bar .nav-tabs li a {
    padding: 0 18px;
    font-size: 18px;
  }
  .tab-content .active section .pic-wrapper {
    padding: 0 25px;
  }
  .tab-content .active section .introduce-wrapper {
    padding: 40px 25px 40px 25px;
  }
}