:root {
      --primary-color: #e44d26;
      --secondary-color: #2c3e50;
      --text-color: #333;
      --light-text-color: #7f8c8d;
      --background-light: #f8f8f8;
      --background-white: #ffffff;
      --border-color: #eee;
      --spacing-unit: 1rem;
    }

    .blog-detail {
      max-width: 800px;
      margin: 20px auto var(--spacing-unit) auto;
      padding: var(--spacing-unit);
      background-color: var(--background-white);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      border-radius: 12px;
      line-height: 1.6;
      font-family: 'Arial', sans-serif;
      color: var(--text-color);
    }

    .blog-detail__article {
      padding: var(--spacing-unit);
    }

    .blog-detail__header {
      margin-bottom: 20px;
      text-align: center;
    }

    .blog-detail__title {
      font-size: 38px;
      color: var(--secondary-color);
      margin-bottom: 10px;
      line-height: 1.2;
      font-weight: bold;
    }

    .blog-detail__meta {
      display: flex;
      justify-content: center;
      align-items: center;
      flex-wrap: wrap;
      font-size: 14px;
      color: var(--light-text-color);
      margin-bottom: 15px;
    }

    .blog-detail__date {
      margin-right: 15px;
      white-space: nowrap;
    }

    .blog-detail__keywords {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 5px;
    }

    .blog-detail__keyword {
      background-color: #e0e0e0;
      color: #555;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 12px;
      white-space: nowrap;
    }

    .blog-detail__cover {
      width: 100%;
      max-height: 400px;
      object-fit: cover;
      border-radius: 8px;
      margin-bottom: 30px;
      display: block;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .blog-detail__content {
      font-size: 17px;
      line-height: 1.7;
      color: var(--text-color);
    }

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

    .blog-detail__content h2 {
      font-size: 28px;
      color: var(--secondary-color);
      margin-top: 30px;
      margin-bottom: 15px;
      line-height: 1.3;
    }

    .blog-detail__content h3 {
      font-size: 22px;
      color: var(--secondary-color);
      margin-top: 25px;
      margin-bottom: 10px;
      line-height: 1.4;
    }

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

    .blog-detail__content li {
      margin-bottom: 8px;
    }

    .blog-detail__content a {
      color: var(--primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

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

    .blog-detail__cta {
      text-align: center;
      background-color: var(--background-light);
      padding: 30px 20px;
      margin-top: 40px;
      border-radius: 8px;
      border: 1px dashed var(--border-color);
    }

    .blog-detail__cta-title {
      font-size: 30px;
      color: var(--primary-color);
      margin-bottom: 15px;
    }

    .blog-detail__cta-description {
      font-size: 18px;
      color: var(--text-color);
      margin-bottom: 25px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .blog-detail__cta-button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--background-white);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 18px;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(228, 77, 38, 0.3);
    }

    .blog-detail__cta-button:hover {
      background-color: #c0392b;
      transform: translateY(-2px);
      box-shadow: 0 6px 15px rgba(228, 77, 38, 0.4);
    }

    .blog-detail__back-to-top {
      position: fixed;
      bottom: 25px;
      right: 25px;
      background-color: var(--primary-color);
      color: var(--background-white);
      width: 45px;
      height: 45px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 24px;
      text-decoration: none;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease, opacity 0.3s ease;
      opacity: 0;
      visibility: hidden;
      z-index: 1000;
    }

    .blog-detail__back-to-top--visible {
      opacity: 1;
      visibility: visible;
    }

    .blog-detail__back-to-top:hover {
      background-color: #c0392b;
      transform: translateY(-2px);
    }

    @media (max-width: 768px) {
      .blog-detail {
        margin: 15px auto var(--spacing-unit) auto;
        padding: 10px;
        border-radius: 8px;
      }

      .blog-detail__article {
        padding: 10px;
      }

      .blog-detail__title {
        font-size: 28px;
      }

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

      .blog-detail__date {
        margin-right: 0;
        margin-bottom: 5px;
      }

      .blog-detail__keywords {
        justify-content: center;
      }

      .blog-detail__cover {
        max-height: 300px;
        margin-bottom: 20px;
      }

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

      .blog-detail__content p {
        margin-bottom: 15px;
      }

      .blog-detail__content h2 {
        font-size: 24px;
        margin-top: 25px;
        margin-bottom: 10px;
      }

      .blog-detail__content h3 {
        font-size: 20px;
        margin-top: 20px;
        margin-bottom: 8px;
      }

      .blog-detail__cta {
        padding: 25px 15px;
        margin-top: 30px;
      }

      .blog-detail__cta-title {
        font-size: 26px;
      }

      .blog-detail__cta-description {
        font-size: 16px;
      }

      .blog-detail__cta-button {
        padding: 12px 25px;
        font-size: 16px;
      }

      .blog-detail__back-to-top {
        width: 40px;
        height: 40px;
        font-size: 20px;
        bottom: 20px;
        right: 20px;
      }
    }

    @media (max-width: 480px) {
      .blog-detail__title {
        font-size: 24px;
      }

      .blog-detail__cover {
        max-height: 250px;
      }

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

      .blog-detail__content h2 {
        font-size: 20px;
      }

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

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