.naigu-section {
    width: 100%;
    padding: 40px 0;
    font-family: "Open Sans", sans-serif;
    background-color: #f9f9f9;
  }

  .naigu-container {
    width: 80%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .naigu-card {
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    padding: 30px 20px;
    flex: 1 1 300px;
    max-width: 500px;
    text-align: left; /* 左对齐 */
  }

  .naigu-title {
    font-size: 24px;
    color: #222;
    margin-bottom: 15px;
  }

  .naigu-text {
    font-size: 16px;
    color: #555;
    margin-bottom: 20px;
    line-height: 1.6;
  }

  .naigu-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background-color: #d80c18;
    color: #fff;
    text-decoration: none; /* 去掉下划线 */
    border-radius: 10px;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
  }

  .naigu-button:hover {
    background-color: #444;
    transform: translateY(-2px);
    text-decoration: none; /* 悬停也不出现下划线 */
  }

  .naigu-triangle {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 6px solid #fff;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    transition: transform 0.3s ease;
  }

  .naigu-button:hover .naigu-triangle {
    transform: translateX(4px);
  }

  /* 移动端优化 */
  @media (max-width: 768px) {
    .naigu-container {
      flex-direction: column;
      gap: 20px;
    }

    .naigu-card {
      max-width: 100%;
      padding: 20px 16px;
    }

    .naigu-title {
      font-size: 20px;
    }

    .naigu-text {
      font-size: 14px;
    }

    .naigu-button {
      font-size: 16px;
      padding: 10px 12px; /* 更紧凑的左右内边距 */
    }
  }