* {
    padding: 0;
    margin: 0;
    font-family: sans-serif;
  }

  .hero {
    width: 100%;
    height: 100vh;
    background: #f6fbff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  h1 {
    font-size: 30px;
    position: relative;
    margin-bottom: 60px;
  }

  h1::after {
    content: '';
    width: 250px;
    height: 3px;
    background: linear-gradient(to right, #0780ed, #9f4db5);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
  }
/*白框*/
  .review-box {
    width: 70%;
    max-width: 1200px;
    height: 500px;
    border-radius: 10px;
    box-shadow: -10px 10px 40px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
  }
  #upArrow {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #fff;
    text-align: center;
    line-height: 30px;
    cursor: pointer;
  }
  #downArrow {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #fff;
    text-align: center;
    line-height: 30px;
    cursor: pointer;
  }


  .card {
    height: 500px;
    padding: 40px;
    color: #111;
    line-height: 22px;
    box-sizing: border-box;
    background: #fff;
    position: relative;
  }

  .profile {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
  }

  .profile img {
    width: 70px;
    border-radius: 50%;
    margin-right: 20px;
  }

  .profile h3 {
    font-size: 26px;
    color: #0780ed;
    margin-bottom: 8px;
  }

  #slide {
    width: 100%;
    padding-right: 60px;
    box-sizing: border-box;
    position: absolute;
    top: 0;
    left: 0;
    transition: 0.5s;
  }

  .sidebar {
    width: 60px;
    height: 100%;
    padding: 15px 0;
    box-sizing: border-box;
    background: #0780ed;
    position: absolute;
    right: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
  }

  .sidebar img {
    width: 25px;
    padding: 5px;
    background: #fff;
    border-radius: 50%;
    cursor: pointer;
  }