.cusus-box .banner-box {
  width: 100%;
  height: 500px;
  background: #ccc url(../images/casus_background.png) center center no-repeat;
  background-size: cover;
}
.cusus-box .content-box {
  width: 1200px;
  margin: 100px auto;
}
.cusus-box .content-box > p:first-of-type {
  text-align: center;
  font-size: 36px;
}
.cusus-box .content-box > p:last-of-type {
  text-align: center;
  font-size: 12px;
  color: #999999;
  margin-top: 16px;
  margin-bottom: 60px;
}
.cusus-box .content-box .cusus-more {
  text-align: center;
}
.cusus-box .content-box .cusus-more > a {
  padding: 10px 30px;
  border: 1px #999999 solid;
  border-radius: 30px;
  font-size: 14px;
  color: #999999;
}
.cusus-box .content-box .cusus-item {
  background-color: #fafafa;
  font-size: 14px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-bottom: 40px ;
  -webkit-box-shadow: 0 7px 9px 0 rgba(213, 213, 213, 0.5);
          box-shadow: 0 7px 9px 0 rgba(213, 213, 213, 0.5);
  overflow: hidden;
  position: relative;
}
.cusus-box .content-box .cusus-item .triangle {
  position: absolute;
  right: -40px;
  top: -40px;
  background-color: #E2E2E2;
  width: 80px;
  height: 80px;
  -webkit-transform: rotate(45deg);
          transform: rotate(45deg);
  text-align: center;
}
.cusus-box .content-box .cusus-item .triangle > span {
  line-height: 130px;
  color: #333333;
  font-size: 12px;
}
.cusus-box .content-box .cusus-item:hover {
  -webkit-box-shadow: 0 7px 9px 0 rgba(160, 160, 160, 0.5);
          box-shadow: 0 7px 9px 0 rgba(160, 160, 160, 0.5);
}
.cusus-box .content-box .cusus-item:hover > .triangle {
  background-color: #3385FF;
}
.cusus-box .content-box .cusus-item:hover > .triangle > span {
  color: #fff;
}
.cusus-box .content-box .cusus-item > img {
  width: 420px;
  height: 350px;
}
.cusus-box .content-box .cusus-item ul {
  margin: 0  30px;
  padding: 20px 0;
}
.cusus-box .content-box .cusus-item ul li {
  margin: 20px 0;
}
.cusus-box .content-box .cusus-item ul li p {
  display: inline-block;
  color: #999999;
}
.cusus-box .content-box .cusus-item ul li span {
  color: #333333;
  line-height: 30px;
}
.cusus-box .content-box .cusus-item ul .case-des {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: baseline;
      -ms-flex-align: baseline;
          align-items: baseline;
}
.cusus-box .content-box .cusus-item ul .case-des span {
  text-indent: 10px;
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}