.page-trang-chu-k8 {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f4f7f6;
      padding-top: 10px; /* Small padding for the first section, assuming body padding is handled */
    }

    .page-trang-chu-k8__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-trang-chu-k8__header-brand {
      text-align: center;
      padding: 20px 0;
      background-color: #007bff;
      color: #fff;
      margin-bottom: 20px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    .page-trang-chu-k8__header-brand h1 {
      margin: 0;
      font-size: 2.5em;
      font-weight: bold;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #fff;
    }

    .page-trang-chu-k8__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-trang-chu-k8__floating-button {
      background-color: #ffc107;
      color: #333;
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      text-align: center;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.3s ease;
      display: block;
      border: none; /* Ensure it looks like a button */
      cursor: pointer;
    }

    .page-trang-chu-k8__floating-button:hover {
      background-color: #e0a800;
      transform: translateY(-2px);
    }

    .page-trang-chu-k8__hero-section {
      text-align: center;
      padding: 40px 15px;
      background-color: #fff;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-trang-chu-k8__hero-section h2 {
      color: #007bff;
      font-size: 2.2em;
      margin-bottom: 15px;
    }

    .page-trang-chu-k8__hero-section p {
      font-size: 1.1em;
      max-width: 800px;
      margin: 0 auto 20px auto;
      color: #555;
    }

    .page-trang-chu-k8__promo-link {
      background-color: #28a745;
      color: #fff;
      padding: 12px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      display: inline-block;
      transition: background-color 0.3s ease;
    }

    .page-trang-chu-k8__promo-link:hover {
      background-color: #218838;
    }

    .page-trang-chu-k8__section-title {
      text-align: center;
      color: #007bff;
      font-size: 2em;
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-trang-chu-k8__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: #ffc107;
    }

    .page-trang-chu-k8__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-bottom: 50px;
      justify-items: center;
    }

    .page-trang-chu-k8__product-card {
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding-bottom: 20px;
      width: 100%;
      max-width: 350px;
      box-sizing: border-box;
    }

    .page-trang-chu-k8__product-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    }

    .page-trang-chu-k8__product-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
      margin-bottom: 15px;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #eee;
    }

    .page-trang-chu-k8__product-image {
      max-width: 100% !important;
      height: auto !important;
      display: block;
      object-fit: cover;
      width: 100%;
      height: 100%;
    }

    .page-trang-chu-k8__product-card h3 {
      font-size: 1.5em;
      color: #007bff;
      margin-bottom: 10px;
      padding: 0 15px;
      word-wrap: break-word;
    }

    .page-trang-chu-k8__product-card p {
      font-size: 0.95em;
      color: #666;
      padding: 0 15px;
      margin-bottom: 15px;
      word-wrap: break-word;
    }

    .page-trang-chu-k8__about-section {
      background-color: #fff;
      padding: 50px 15px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
      text-align: center;
    }

    .page-trang-chu-k8__about-section p {
      max-width: 900px;
      margin: 0 auto 20px auto;
      font-size: 1.1em;
      color: #555;
    }

    .page-trang-chu-k8__cta-button {
      background-color: #007bff;
      color: #fff;
      padding: 14px 35px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      display: inline-block;
      transition: background-color 0.3s ease;
      margin-top: 15px;
    }

    .page-trang-chu-k8__cta-button:hover {
      background-color: #0056b3;
    }

    .page-trang-chu-k8__faq-section {
      background-color: #fff;
      padding: 50px 15px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-trang-chu-k8__faq-item {
      border: 1px solid #ddd;
      border-radius: 5px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .page-trang-chu-k8__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #f8f9fa;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: #333;
      transition: background-color 0.3s ease;
    }

    .page-trang-chu-k8__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      pointer-events: none; /* Prevent h3 from blocking click event */
      color: #333;
      word-wrap: break-word;
    }

    .page-trang-chu-k8__faq-question:hover {
      background-color: #e2e6ea;
    }

    .page-trang-chu-k8__faq-toggle {
      font-size: 1.5em;
      margin-left: 10px;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
      color: #007bff;
    }

    .page-trang-chu-k8__faq-item.active .page-trang-chu-k8__faq-toggle {
      transform: rotate(45deg);
    }

    .page-trang-chu-k8__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      background-color: #fff;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
    }

    .page-trang-chu-k8__faq-item.active .page-trang-chu-k8__faq-answer {
      max-height: 2000px !important;
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-trang-chu-k8__providers-section {
      background-color: #f0f0f0;
      padding: 40px 15px;
      text-align: center;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-trang-chu-k8__providers-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-trang-chu-k8__providers-list li {
      background-color: #fff;
      padding: 10px 20px;
      border-radius: 5px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
      font-weight: bold;
      color: #444;
      box-sizing: border-box;
      width: auto;
      max-width: 180px;
      word-wrap: break-word;
      text-align: center;
    }

    .page-trang-chu-k8__payments-section {
      background-color: #fff;
      padding: 40px 15px;
      text-align: center;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .page-trang-chu-k8__payments-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-trang-chu-k8__payments-list li {
      background-color: #f8f8f8;
      padding: 10px 20px;
      border: 1px solid #eee;
      border-radius: 5px;
      font-weight: bold;
      color: #444;
      box-sizing: border-box;
      width: auto;
      max-width: 180px;
      word-wrap: break-word;
      text-align: center;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-trang-chu-k8__header-brand h1 {
        font-size: 1.8em;
      }

      .page-trang-chu-k8__hero-section h2 {
        font-size: 1.8em;
      }

      .page-trang-chu-k8__hero-section p,
      .page-trang-chu-k8__about-section p {
        font-size: 1em;
      }

      .page-trang-chu-k8__section-title {
        font-size: 1.8em;
      }

      .page-trang-chu-k8__product-grid {
        grid-template-columns: 1fr;
      }

      .page-trang-chu-k8__product-card {
        max-width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-trang-chu-k8__product-image-wrapper {
        height: 180px;
      }

      .page-trang-chu-k8__product-card h3 {
        font-size: 1.3em;
      }

      .page-trang-chu-k8__floating-buttons {
        bottom: 10px;
        right: 10px;
        gap: 8px;
      }

      .page-trang-chu-k8__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-trang-chu-k8__providers-list,
      .page-trang-chu-k8__payments-list {
        flex-direction: column;
        align-items: center;
      }

      .page-trang-chu-k8__providers-list li,
      .page-trang-chu-k8__payments-list li {
        width: 100% !important;
        max-width: 300px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
        padding: 10px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }

      .page-trang-chu-k8__faq-question h3 {
        font-size: 1em;
      }

      .page-trang-chu-k8__faq-answer {
        padding: 0 10px;
      }

      .page-trang-chu-k8__faq-item.active .page-trang-chu-k8__faq-answer {
        padding: 15px 10px !important;
      }
    }

    @media (max-width: 480px) {
      .page-trang-chu-k8__header-brand h1 {
        font-size: 1.5em;
      }

      .page-trang-chu-k8__hero-section h2 {
        font-size: 1.5em;
      }

      .page-trang-chu-k8__section-title {
        font-size: 1.5em;
      }
    }