.show-news-container {
    max-width: 800px;
    margin: 40px auto;
    background: #ffffff;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  .show-news-thumbnail {
    width: 100%;
    height: auto;
    border-radius: 8px;
  }

  .show-news-header {
    margin-top: 20px;
  }

  .show-news-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 8px;
  }

  .show-news-date {
    font-size: 14px;
    color: #888;
    margin-bottom: 20px;
  }

  .show-news-content {
    text-align: center; /* 本文を中央寄せ */
    line-height: 1.8;
    font-size: 16px;
  }