.case_a {
  padding-top: 70px;
}
.case_a .t-title {
  padding: 65px 0 55px;
  text-align: center;
  color: #333;
  font-weight: bold;
  font-size: 24px;
}
.case_a ul {
  margin-bottom: 60px;
}
.case_a ul li {
  width: 32.1428%;
  float: left;
  margin: 1.7858% 1.7858% 0 0;
}
.case_a ul li .imgbox {
  overflow: hidden;
}
.case_a ul li .imgbox img {
  width: 100%;
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
}
.case_a ul li .te {
  height: 100px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  line-height: 26px;
  padding: 0 30px;
  position: relative;
  background-color: #f5f5f5;
}
.case_a ul li .te span {
  display: block;
  text-align: center;
  color: #333333;
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
  position: relative;
  z-index: 10;
  width: 100%;
}
.case_a ul li .te::after {
  content: "";
  width: 100%;
  height: 0%;
  background: #1e76cf;
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
  left: 0;
  top: 0;
  z-index: 8;
}
.case_a ul li:nth-child(3n) {
  margin-right: 0;
}
.case_a ul li:nth-child(1),
.case_a ul li:nth-child(2),
.case_a ul li:nth-child(3) {
  margin-top: 0;
}
.case_a ul li:hover .imgbox img {
  -webkit-transform: scale(1.1);
     -moz-transform: scale(1.1);
      -ms-transform: scale(1.1);
          transform: scale(1.1);
}
.case_a ul li:hover .te span {
  color: #fff;
}
.case_a ul li:hover .te::after {
  height: 100%;
}
.case_b .div_1 {
  padding-top: 5.1%;
}
.case_b .div_1 .b-title {
  text-align: center;
  color: #333333;
  font-size: 24px;
  margin-bottom: 40px;
  font-weight: bold;
}
.case_b .div_1 .info-text {
  line-height: 28px;
  color: #666666;
  margin-bottom: 44px;
}
.case_b .div_1 .case-img {
  margin-bottom: 55px;
}
.case_b .div_1 .case-img li {
  width: 32.1428%;
  float: left;
  margin: 1.7858% 1.7858% 0 0;
  overflow: hidden;
}
.case_b .div_1 .case-img li img {
  width: 100%;
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
}
.case_b .div_1 .case-img li:nth-child(3n) {
  margin-right: 0;
}
.case_b .div_1 .case-img li:nth-child(1),
.case_b .div_1 .case-img li:nth-child(2),
.case_b .div_1 .case-img li:nth-child(3) {
  margin-top: 0;
}
.case_b .div_1 .case-img li:hover img {
  -webkit-transform: scale(1.1);
     -moz-transform: scale(1.1);
      -ms-transform: scale(1.1);
          transform: scale(1.1);
}
.case_b .s-title {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 14px;
}
.case_b .pub-text {
  line-height: 28px;
  color: #666666;
}
.case_b .div_2 {
  padding-bottom: 40px;
  border-bottom: 1px solid #dddddd;
  margin-bottom: 44px;
}
.case_b .div_3 {
  border-bottom: 1px solid #dddddd;
  margin-bottom: 44px;
}
.case_b .div_3 .pub-text {
  margin-bottom: 32px;
}
.case_b .div_4 {
  padding-bottom: 55px;
}
.case_b .div_4 .s-title {
  margin-bottom: 20px;
}
.case_b .div_4 .about_product li {
  width: 32.1428%;
  float: left;
  margin: 1.7858% 1.7858% 0 0;
}
.case_b .div_4 .about_product li .imgbox {
  overflow: hidden;
  position: relative;
}
.case_b .div_4 .about_product li .imgbox img {
  width: 100%;
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
}
.case_b .div_4 .about_product li .imgbox::after {
  content: "";
  width: 100%;
  left: 0;
  top: 0;
  height: 100%;
  border: 1px solid #ddd;
  pointer-events: none;
}
.case_b .div_4 .about_product li .te {
  text-align: center;
  line-height: 70px;
}
.case_b .div_4 .about_product li .te span {
  -webkit-transition: all ease 0.3s;
  -o-transition: all ease 0.3s;
  -moz-transition: all ease 0.3s;
  transition: all ease 0.3s;
  color: #333;
}
.case_b .div_4 .about_product li:nth-child(3n) {
  margin-right: 0;
}
.case_b .div_4 .about_product li:nth-child(1),
.case_b .div_4 .about_product li:nth-child(2),
.case_b .div_4 .about_product li:nth-child(3) {
  margin-top: 0;
}
.case_b .div_4 .about_product li:hover .imgbox img {
  -webkit-transform: scale(1.1);
     -moz-transform: scale(1.1);
      -ms-transform: scale(1.1);
          transform: scale(1.1);
}
.case_b .div_4 .about_product li:hover .te {
  color: #1e76cf;
}
.case_c {
  background-color: #f0f0f0;
  padding: 0 0 1px;
}
@media (max-width: 1366px) {
  .case_a .t-title {
    padding: 50px 0 40px;
  }
  .case_a ul li .te {
    height: 80px;
  }
}
@media (max-width: 768px) {
  .case_a {
    padding: 50px 0 0;
  }
  .case_a .t-title {
    font-size: 18px;
  }
  .case_a ul li {
    width: 100%;
    margin: 5% 5% 0 0;
  }
  .case_a ul li:nth-child(3),
  .case_a ul li:nth-child(2) {
    margin-top: 5%;
  }
  .case_b .div_1 {
    padding-top: 50px;
  }
  .case_b .div_1 .b-title {
    margin-bottom: 30px;
    font-size: 18px;
  }
  .case_b .div_1 .case-img {
    margin-bottom: 40px;
  }
  .case_b .div_1 .case-img li {
    width: 100%;
    margin: 0 0 5% 0;
  }
  .case_b .div_1 .case-img li:last-child {
    margin-bottom: 0;
  }
  .case_b .s-title {
    font-size: 16px;
  }
  .case_b .div_4 {
    padding-bottom: 30px;
  }
  .case_b .div_4 .about_product li {
    width: 100%;
    margin: 0 0 5%;
  }
  .case_b .div_4 .about_product li .te {
    line-height: 50px;
  }
  .case_b .div_4 .about_product li:last-child {
    margin-bottom: 0;
  }
  .case_c {
    padding: 0 0 1px;
  }
}