.ser_ul li {
  padding-bottom: 5.2083%;
}
.ser_ul li .p-tl-box {
  margin-bottom: 50px;
}
.ser_ul li .imgbox {
  position: relative;
}
.ser_ul li .imgbox .tips-box {
  position: absolute;
  width: 800px;
  padding: 33px 10px;
  text-align: center;
  left: 50%;
  top: 10%;
  -webkit-transform: translateX(-50%);
     -moz-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  z-index: 20;
  line-height: 42px;
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  -webkit-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
     -moz-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
          box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
  -webkit-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  -o-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  -moz-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}
.ser_ul li .imgbox .tips-box i {
  z-index: 20;
}
.ser_ul li .imgbox .tips-box:hover {
  -webkit-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
     -moz-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
          box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
}
.ser_ul li .imgbox .tips-box::after {
  content: "";
  width: 100%;
  height: 100%;
  -webkit-border-radius: 2px;
     -moz-border-radius: 2px;
          border-radius: 2px;
  border: solid 1px rgba(255, 255, 255, 0.2);
  left: 0;
  top: 0;
  z-index: 0;
  pointer-events: none;
}
.ser_ul li:nth-child(2n + 1) {
  background: #fff;
}
.ser_ul li:nth-child(2n + 1) .p-tl-box .tips-box {
  color: #555;
}
.ser_ul li:nth-child(2n + 1) .p-tl-box .tips-box span::after {
  background: #555;
}
.ser_ul li:nth-child(2n) {
  background: #050505;
}
.ser_ul li:nth-child(2n) .p-tl-box .tips-box {
  color: #555;
}
.ser_ul li:nth-child(2n) .p-tl-box .tips-box .cn,
.ser_ul li:nth-child(2n) .p-tl-box .tips-box .en,
.ser_ul li:nth-child(2n) .p-tl-box .tips-box .tips-box {
  color: #fff;
}
.ser_ul li:nth-child(2n) .p-tl-box .tips-box span::after {
  background: #555;
}
.ser_ul li:nth-child(3) .bwrap {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}
.ser_ul li:nth-child(3) .bwrap .text-box,
.ser_ul li:nth-child(3) .bwrap .imgbox {
  width: 50%;
}
.ser_ul li:nth-child(3) .bwrap .text-box {
  background-color: #111215;
  position: relative;
}
.ser_ul li:nth-child(3) .bwrap .text-box .tips-box {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
     -moz-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
  width: 80%;
  padding: 33px 10px;
  line-height: 42px;
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  -webkit-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
     -moz-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
          box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.1);
  -webkit-border-radius: 2px;
     -moz-border-radius: 2px;
          border-radius: 2px;
  border: solid 1px rgba(255, 255, 255, 0.2);
  -webkit-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  -o-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  -moz-transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  transition: all cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
  padding-left: 60px;
  right: 6%;
}
.ser_ul li:nth-child(3) .bwrap .text-box .tips-box:hover {
  -webkit-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
     -moz-box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
          box-shadow: 0px 2px 10px 0px rgba(255, 255, 255, 0.3);
}
.ser_a {
  background: #fff;
  padding-bottom: 80px;
}
.ser_a .back-box .backbtn {
  border-color: #333;
  color: #333;
}
.ser_a .back-box .backbtn:hover {
  color: #fff;
  border-color: #e40000;
}
@media (max-width: 1600px) {
  .ser_ul li .imgbox .tips-box {
    font-size: 20px;
    line-height: 34px;
  }
  .ser_ul li:nth-child(3) .bwrap .text-box .tips-box {
    font-size: 20px;
    line-height: 34px;
  }
}
@media (max-width: 1440px) {
  .ser_ul li .imgbox .tips-box {
    font-size: 18px;
    line-height: 30px;
  }
  .ser_ul li:nth-child(3) .bwrap .text-box .tips-box {
    font-size: 18px;
    line-height: 30px;
  }
}
@media (max-width: 1024px) {
  .ser_ul li .imgbox .tips-box {
    font-size: 16px;
    line-height: 28px;
  }
  .ser_ul li:nth-child(3) .bwrap .text-box .tips-box {
    width: 90%;
    font-size: 16px;
    line-height: 28px;
  }
}
@media (max-width: 768px) {
  .ser_ul li {
    padding-bottom: 50px;
  }
  .ser_ul li .imgbox {
    overflow: hidden;
  }
  .ser_ul li .imgbox img {
    width: 200%;
    max-width: 200%;
    -webkit-transform: translateX(-25%);
       -moz-transform: translateX(-25%);
        -ms-transform: translateX(-25%);
            transform: translateX(-25%);
  }
  .ser_ul li .imgbox .tips-box {
    font-size: 14px;
    line-height: 24px;
    width: 90%;
    padding: 10px;
  }
  .ser_ul li:nth-child(3) .bwrap .text-box {
    width: 100%;
    padding: 20px 0;
  }
  .ser_ul li:nth-child(3) .bwrap .text-box .tips-box {
    width: 90%;
    font-size: 14px;
    line-height: 24px;
    position: relative;
    left: auto;
    top: auto;
    right: auto;
    bottom: auto;
    margin: 0 auto;
    -webkit-transform: none;
       -moz-transform: none;
        -ms-transform: none;
            transform: none;
    padding: 10px;
  }
  .ser_ul li:nth-child(3) .bwrap .imgbox {
    width: 100%;
  }
  .ser_ul li:nth-child(3) .bwrap .imgbox img {
    width: 100%;
    -webkit-transform: none;
       -moz-transform: none;
        -ms-transform: none;
            transform: none;
  }
}