.top-container {
  width: 100%;
  height: 360px; }

.centent-box {
  margin-bottom: 60px; }
  .centent-box .case-list {
    margin-top: 60px; }
    .centent-box .case-list .case-item {
      width: 100%;
      flex-direction: column;
      position: relative;
      height: 275px;
      margin-bottom: 40px; }
      .centent-box .case-list .case-item img {
        flex: 1;
        width: 100%;
        flex-shrink: 0; }
      .centent-box .case-list .case-item:hover .title {
        background-color: rgba(23, 64, 134, 0.7);
        color: #FFFFFF;
        height: 100%;
        display: flex;
        align-items: center;
        white-space: normal;
        line-height: 24px;
        justify-content: center;
        transition: all 0.5s; }
      .centent-box .case-list .case-item .title {
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        flex-shrink: 0;
        height: 60px;
        background: rgba(241, 244, 249, 0.8);
        font-size: 16px;
        color: #222227;
        transition: all 0.5s;
        padding: 0 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        line-height: 60px;
        text-align: center;
        box-sizing: border-box; }