body {
    background-color: #fff;
  }
  .banner_section {
    position: relative;
    width: 100%;
    height: 50rem;
    background: url('../images/contactBg.jpg') no-repeat center center;
    background-size: cover;
  }
  .banner_section .banner_mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
  }
  .banner_section .banner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 50rem;
    position: relative;
    z-index: 4;
  }
  .banner_section .banner .banner_title {
    font-size: 4.8rem;
    color: #fff;
    font-weight: 700;
    text-align: center;
  }
  .banner_section .banner .banner_title_en {
    color: #fff;
    text-transform: uppercase;
    font-weight: 500;
    margin-top: 10px;
    font-size: 1.8rem;
    text-align: center;
  }
  .message_section {
    padding: 5rem 0;
  }
  .message_section .message_title {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .message_section .message_title h4 {
    color: #333;
    font-size: 2.8rem;
    font-weight: 700;
  }
  .message_section .message_title p {
    margin-top: 1rem;
    color: #666;
    font-size: 1.8rem;
    font-weight: 500;
  }
  .message_section .message_list {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
  }
  .message_section .message_list .message_item {
    width: 28%;
    height: 18rem;
    border-radius: 1rem;
    border: 1px solid #ccc;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 5rem;
  }
  .message_section .message_list .message_item .message_item_icon {
    margin-bottom: 2rem;
  }
  .message_section .message_list .message_item .message_item_icon img {
    width: 6rem;
  }
  .message_section .message_list .message_item p {
    color: #666;
    font-size: 1.6rem;
    font-weight: 500;
    text-align: center;
  }
  @media screen and (max-width: 900px) {
    .message_section .message_list {
      flex-wrap: wrap;
      padding: 0 1rem;
    }
    .message_section .message_list .message_item {
      width: 49%;
      margin-bottom: 2rem;
    }
  }