:root {
      --primary-text-color: #333333;
      --secondary-text-color: #7f8c8d;
      --heading-color: #2c3e50;
      --accent-color: #e74c3c;
      --background-color-light: #f9f9f9;
      --background-color-white: #ffffff;
      --border-color: #e0e0e0;
      --header-offset: 120px;
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--primary-text-color);
      background-color: var(--background-color-light);
    }

    .blog-detail {
      max-width: 100%;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .blog-detail__post {
      background-color: var(--background-color-white);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      padding: 30px;
      margin-top: var(--header-offset, 120px);
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      overflow: hidden;
    }

    .blog-detail__header {
      text-align: center;
      margin-bottom: 30px;
    }

    .blog-detail__title {
      font-size: 38px;
      color: var(--heading-color);
      margin-top: 0;
      margin-bottom: 15px;
      line-height: 1.2;
      font-weight: 700;
    }

    .blog-detail__meta {
      font-size: 14px;
      color: var(--secondary-text-color);
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px 20px;
      margin-top: 20px;
    }

    .blog-detail__date {
      white-space: nowrap;
    }

    .blog-detail__keywords {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
    }

    .blog-detail__keyword-label {
      font-weight: 600;
    }

    .blog-detail__keyword {
      display: inline-block;
      background-color: var(--accent-color);
      color: var(--background-color-white);
      padding: 5px 12px;
      border-radius: 20px;
      text-decoration: none;
      font-size: 13px;
      transition: background-color 0.3s ease;
      white-space: nowrap;
    }

    .blog-detail__keyword:hover {
      background-color: #c0392b; 
    }

    .blog-detail__cover-wrapper {
      margin: 0 -30px 30px -30px; 
      position: relative;
      height: 0;
      padding-bottom: 56.25%; 
      overflow: hidden;
    }

    .blog-detail__cover {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 8px;
      max-height: 400px;
    }

    .blog-detail__content {
      font-size: 17px;
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .blog-detail__content p {
      margin-bottom: 20px;
    }

    .blog-detail__content h2 {
      font-size: 28px;
      color: var(--heading-color);
      margin-top: 35px;
      margin-bottom: 18px;
      font-weight: 600;
      line-height: 1.3;
    }

    .blog-detail__content h3 {
      font-size: 24px;
      color: var(--heading-color);
      margin-top: 30px;
      margin-bottom: 15px;
      font-weight: 600;
      line-height: 1.3;
    }

    .blog-detail__content ul,
    .blog-detail__content ol {
      margin-bottom: 20px;
      padding-left: 25px;
    }

    .blog-detail__content li {
      margin-bottom: 10px;
    }

    .blog-detail__content a {
      color: var(--accent-color);
      text-decoration: underline;
      transition: color 0.3s ease;
    }

    .blog-detail__content a:hover {
      color: #c0392b;
    }

    .blog-detail__related-posts {
      max-width: 800px;
      margin: 40px auto;
      padding: 30px;
      background-color: var(--background-color-white);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }

    .blog-detail__related-title {
      font-size: 28px;
      color: var(--heading-color);
      text-align: center;
      margin-top: 0;
      margin-bottom: 30px;
      font-weight: 700;
    }

    .blog-detail__related-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
    }

    .blog-detail__related-item {
      display: block;
      background-color: var(--background-color-light);
      border-radius: 8px;
      padding: 20px;
      text-decoration: none;
      color: var(--primary-text-color);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .blog-detail__related-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
    }

    .blog-detail__related-item-title {
      font-size: 20px;
      color: var(--heading-color);
      margin-top: 10px;
      margin-bottom: 10px;
      line-height: 1.4;
      font-weight: 600;
    }

    .blog-detail__related-item-summary {
      font-size: 15px;
      color: var(--secondary-text-color);
      margin-bottom: 0;
    }

    @media (max-width: 768px) {
      .blog-detail__post {
        padding: 20px;
      }

      .blog-detail__title {
        font-size: 30px;
      }

      .blog-detail__meta {
        flex-direction: column;
        align-items: center;
        gap: 8px;
      }

      .blog-detail__cover-wrapper {
        margin: 0 -20px 25px -20px;
      }

      .blog-detail__content {
        font-size: 16px;
        line-height: 1.6;
      }

      .blog-detail__content h2 {
        font-size: 24px;
        margin-top: 30px;
        margin-bottom: 15px;
      }

      .blog-detail__content h3 {
        font-size: 20px;
        margin-top: 25px;
        margin-bottom: 12px;
      }

      .blog-detail__related-posts {
        margin: 30px auto;
        padding: 20px;
      }

      .blog-detail__related-title {
        font-size: 24px;
        margin-bottom: 25px;
      }

      .blog-detail__related-grid {
        gap: 20px;
      }

      .blog-detail__related-item-title {
        font-size: 18px;
      }

      .blog-detail__related-item-summary {
        font-size: 14px;
      }
    }

    @media (max-width: 480px) {
      .blog-detail__post {
        padding: 15px;
      }

      .blog-detail__title {
        font-size: 26px;
      }

      .blog-detail__cover-wrapper {
        margin: 0 -15px 20px -15px;
      }

      .blog-detail__content {
        font-size: 15px;
      }

      .blog-detail__content h2 {
        font-size: 22px;
      }

      .blog-detail__content h3 {
        font-size: 18px;
      }

      .blog-detail__related-posts {
        padding: 15px;
      }

      .blog-detail__related-title {
        font-size: 22px;
      }
    }