:root {
      --page-j88j-primary-color: #e44d26; /* Cam đỏ */
      --page-j88j-secondary-color: #f7931e; /* Cam */
      --page-j88j-accent-color: #4CAF50; /* Xanh lá */
      --page-j88j-dark-bg: #1a1a1a; /* Nền tối */
      --page-j88j-light-bg: #f5f5f5; /* Nền sáng */
      --page-j88j-text-color: #ffffff; /* Chữ trắng */
      --page-j88j-dark-text-color: #333333; /* Chữ đen */
      --page-j88j-border-radius: 8px;
    }

    .page-j88j {
      font-family: 'Arial', sans-serif;
      color: var(--page-j88j-text-color);
      background-color: var(--page-j88j-dark-bg);
      line-height: 1.6;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding-bottom: 40px;
    }

    .page-j88j__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      width: 100%;
      box-sizing: border-box;
    }

    .page-j88j__hero-section {
      width: 100%;
      background: linear-gradient(135deg, var(--page-j88j-primary-color), var(--page-j88j-secondary-color));
      color: var(--page-j88j-text-color);
      padding: 60px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
      padding-top: 10px; /* Small top padding, assuming body handles header offset */
    }

    .page-j88j__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-j88j__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      font-weight: bold;
      line-height: 1.2;
      color: var(--page-j88j-text-color);
    }

    .page-j88j__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 30px;
      opacity: 0.9;
    }

    .page-j88j__cta-button {
      display: inline-block;
      background-color: var(--page-j88j-accent-color);
      color: var(--page-j88j-text-color);
      padding: 15px 30px;
      border-radius: var(--page-j88j-border-radius);
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-j88j__cta-button:hover {
      background-color: #45a049; /* Darker accent */
      transform: translateY(-3px);
    }

    .page-j88j__cta-button:active {
      transform: translateY(0);
    }

    .page-j88j__cta-button-link {
      color: var(--page-j88j-text-color);
      text-decoration: none;
    }

    .page-j88j__features-section {
      background-color: var(--page-j88j-light-bg);
      color: var(--page-j88j-dark-text-color);
      padding: 60px 0;
      width: 100%;
    }

    .page-j88j__section-title {
      font-size: 2.8em;
      text-align: center;
      margin-bottom: 40px;
      color: var(--page-j88j-primary-color);
      font-weight: bold;
    }

    .page-j88j__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-j88j__feature-item {
      background-color: #ffffff;
      padding: 30px;
      border-radius: var(--page-j88j-border-radius);
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-j88j__feature-item:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-j88j__feature-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 20px;
      object-fit: contain;
      max-width: 100%;
      height: auto;
    }

    .page-j88j__feature-title {
      font-size: 1.8em;
      color: var(--page-j88j-primary-color);
      margin-bottom: 15px;
    }

    .page-j88j__feature-description {
      font-size: 1em;
      color: var(--page-j88j-dark-text-color);
    }

    .page-j88j__about-section {
      background-color: var(--page-j88j-dark-bg);
      color: var(--page-j88j-text-color);
      padding: 60px 0;
      width: 100%;
      text-align: center;
    }

    .page-j88j__about-content {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-j88j__about-text {
      flex: 1;
      min-width: 300px;
      text-align: left;
    }

    .page-j88j__about-text p {
      margin-bottom: 15px;
      font-size: 1.1em;
    }

    .page-j88j__about-image {
      flex: 1;
      min-width: 300px;
      text-align: center;
    }

    .page-j88j__about-image img {
      width: 100%;
      max-width: 500px;
      border-radius: var(--page-j88j-border-radius);
      object-fit: cover;
      max-height: 400px;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
      max-width: 100%;
      height: auto;
    }

    .page-j88j__games-section {
      background-color: var(--page-j88j-light-bg);
      color: var(--page-j88j-dark-text-color);
      padding: 60px 0;
      width: 100%;
    }

    .page-j88j__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-j88j__game-card {
      background-color: #ffffff;
      border-radius: var(--page-j88j-border-radius);
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-j88j__game-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-j88j__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      max-width: 100%;
      height: auto;
    }

    .page-j88j__game-content {
      padding: 20px;
    }

    .page-j88j__game-title {
      font-size: 1.5em;
      color: var(--page-j88j-primary-color);
      margin-bottom: 10px;
    }

    .page-j88j__game-description {
      font-size: 0.95em;
      color: var(--page-j88j-dark-text-color);
    }

    .page-j88j__promo-section {
      background-color: var(--page-j88j-dark-bg);
      color: var(--page-j88j-text-color);
      padding: 60px 0;
      width: 100%;
      text-align: center;
    }

    .page-j88j__promo-card {
      background: linear-gradient(90deg, var(--page-j88j-primary-color), var(--page-j88j-secondary-color));
      padding: 40px;
      border-radius: var(--page-j88j-border-radius);
      max-width: 800px;
      margin: 30px auto 0;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    }

    .page-j88j__promo-title {
      font-size: 2.2em;
      margin-bottom: 20px;
      color: var(--page-j88j-text-color);
    }

    .page-j88j__promo-description {
      font-size: 1.2em;
      margin-bottom: 30px;
    }

    .page-j88j__faq-section {
      background-color: var(--page-j88j-light-bg);
      color: var(--page-j88j-dark-text-color);
      padding: 60px 0;
      width: 100%;
    }

    .page-j88j__faq-list {
      margin-top: 40px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
      padding: 0;
    }

    .page-j88j__faq-item {
      background-color: #ffffff;
      margin-bottom: 15px;
      border-radius: var(--page-j88j-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-j88j__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #f8f8f8;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-j88j__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-j88j__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-j88j-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-j88j__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-j88j-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-j88j__faq-item.active .page-j88j__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' visually */
    }

    .page-j88j__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--page-j88j-dark-text-color);
      box-sizing: border-box;
    }

    .page-j88j__faq-item.active .page-j88j__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-j88j__faq-answer p {
      margin: 0 0 10px 0;
    }

    .page-j88j__providers-section {
      background-color: var(--page-j88j-dark-bg);
      color: var(--page-j88j-text-color);
      padding: 60px 0;
      width: 100%;
      text-align: center;
    }

    .page-j88j__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-j88j__provider-item {
      background-color: #2a2a2a;
      padding: 20px;
      border-radius: var(--page-j88j-border-radius);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-sizing: border-box;
    }

    .page-j88j__provider-image {
      width: 120px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 10px;
      max-width: 100%;
      height: auto;
    }

    .page-j88j__provider-name {
      font-size: 1.1em;
      font-weight: bold;
      color: var(--page-j88j-text-color);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-j88j__hero-title {
        font-size: 2.5em;
      }

      .page-j88j__hero-subtitle {
        font-size: 1.2em;
      }

      .page-j88j__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-j88j__section-title {
        font-size: 2em;
      }

      .page-j88j__features-grid,
      .page-j88j__games-grid,
      .page-j88j__providers-grid {
        grid-template-columns: 1fr;
      }

      .page-j88j__feature-item,
      .page-j88j__game-card,
      .page-j88j__provider-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      
      .page-j88j__features-grid,
      .page-j88j__games-grid,
      .page-j88j__providers-grid {
        padding: 0 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-j88j__about-content {
        flex-direction: column;
      }

      .page-j88j__about-text,
      .page-j88j__about-image {
        min-width: unset;
        width: 100%;
      }

      .page-j88j__faq-list {
        padding: 0 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-j88j__faq-question {
        padding: 15px 20px;
      }

      .page-j88j__faq-question h3 {
        font-size: 1.1em;
      }

      .page-j88j__faq-toggle {
        font-size: 1.5em;
      }

      .page-j88j__faq-answer {
        padding: 15px 20px;
      }

      .page-j88j__promo-card {
        padding: 30px 20px;
      }

      .page-j88j__promo-title {
        font-size: 1.8em;
      }

      .page-j88j__promo-description {
        font-size: 1em;
      }
      
      /* Image responsiveness */
      .page-j88j img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-j88j__hero-image {
        display: none; /* Hide hero image on mobile if it's purely decorative behind content */
      }
    }

    @media (max-width: 480px) {
      .page-j88j__hero-title {
        font-size: 2em;
      }

      .page-j88j__hero-subtitle {
        font-size: 1em;
      }

      .page-j88j__section-title {
        font-size: 1.8em;
      }
    }