:root {
      --page-dt88-primary-color: #e6b800; /* Vàng hổ phách */
      --page-dt88-secondary-color: #333333; /* Xám đậm */
      --page-dt88-accent-color: #ff4500; /* Cam đỏ */
      --page-dt88-text-light: #ffffff;
      --page-dt88-text-dark: #000000;
      --page-dt88-bg-dark: #1a1a1a;
      --page-dt88-bg-medium: #2a2a2a;
      --page-dt88-bg-light: #3a3a3a;
      --page-dt88-border-color: #555555;
    }

    .page-dt88 {
      font-family: 'Arial', sans-serif;
      color: var(--page-dt88-text-light);
      background-color: var(--page-dt88-bg-dark);
      line-height: 1.6;
      padding-bottom: 50px; /* Thêm khoảng trống cuối trang */
    }

    .page-dt88__hero-section {
      position: relative;
      width: 100%;
      min-height: 500px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      padding-top: 10px; /* Minimal padding-top, assuming body padding handles header offset */
      padding-bottom: 50px;
    }

    .page-dt88__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      filter: brightness(0.6); /* Slightly darken background for text readability */
    }

    .page-dt88__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      padding: 20px;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: 10px;
      margin: 0 20px;
    }

    .page-dt88__hero-title {
      font-size: 3.5em;
      color: var(--page-dt88-primary-color);
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-dt88__hero-subtitle {
      font-size: 1.5em;
      color: var(--page-dt88-text-light);
      margin-bottom: 30px;
    }

    .page-dt88__button-group {
      display: flex;
      gap: 20px;
      justify-content: center;
    }

    .page-dt88__action-button {
      background-color: var(--page-dt88-primary-color);
      color: var(--page-dt88-text-dark);
      padding: 15px 30px;
      border: none;
      border-radius: 5px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.3s ease;
      text-decoration: none; /* Ensure no underline for button-like text */
      display: inline-block; /* Allow padding and sizing */
    }

    .page-dt88__action-button:hover {
      background-color: var(--page-dt88-accent-color);
      transform: translateY(-3px);
    }

    .page-dt88__section {
      padding: 60px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-dt88__section:nth-of-type(odd) {
      background-color: var(--page-dt88-bg-medium);
    }

    .page-dt88__section-title {
      font-size: 2.5em;
      color: var(--page-dt88-primary-color);
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-dt88__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-dt88-accent-color);
      border-radius: 2px;
    }

    .page-dt88__text-content {
      font-size: 1.1em;
      color: var(--page-dt88-text-light);
      margin-bottom: 30px;
      text-align: justify;
    }

    .page-dt88__features-grid,
    .page-dt88__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-dt88__feature-item,
    .page-dt88__game-card {
      background-color: var(--page-dt88-bg-light);
      border-radius: 10px;
      padding: 30px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-dt88__feature-item:hover,
    .page-dt88__game-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .page-dt88__feature-icon,
    .page-dt88__game-image {
      width: 100%;
      max-width: 250px;
      height: auto;
      margin-bottom: 20px;
      border-radius: 8px;
      object-fit: cover;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-dt88__feature-title,
    .page-dt88__game-title {
      font-size: 1.5em;
      color: var(--page-dt88-primary-color);
      margin-bottom: 15px;
    }

    .page-dt88__feature-description,
    .page-dt88__game-description {
      font-size: 1em;
      color: var(--page-dt88-text-light);
      text-align: justify;
    }

    .page-dt88__faq-section {
      background-color: var(--page-dt88-bg-medium);
    }

    .page-dt88__faq-container {
      max-width: 900px;
      margin: 0 auto;
      text-align: left;
    }

    .page-dt88__faq-item {
      background-color: var(--page-dt88-bg-light);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-dt88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: var(--page-dt88-secondary-color);
      color: var(--page-dt88-primary-color);
      cursor: pointer;
      font-size: 1.2em;
      font-weight: bold;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-dt88__faq-question:hover {
      background-color: #444444;
    }

    .page-dt88__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event on parent div */
      color: var(--page-dt88-primary-color); /* Ensure h3 color is consistent */
    }

    .page-dt88__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent div */
      color: var(--page-dt88-accent-color);
    }

    .page-dt88__faq-item.active .page-dt88__faq-toggle {
      transform: rotate(45deg); /* Plus to X (rotate 45deg) */
    }

    .page-dt88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--page-dt88-text-light);
      background-color: var(--page-dt88-bg-light);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 1em;
      text-align: justify;
    }

    .page-dt88__faq-item.active .page-dt88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-dt88__cta-section {
      padding: 80px 20px;
      background-color: var(--page-dt88-secondary-color);
      text-align: center;
    }

    .page-dt88__cta-title {
      font-size: 2.8em;
      color: var(--page-dt88-primary-color);
      margin-bottom: 30px;
    }

    .page-dt88__cta-description {
      font-size: 1.3em;
      color: var(--page-dt88-text-light);
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-dt88__hero-title {
        font-size: 3em;
      }
      .page-dt88__hero-subtitle {
        font-size: 1.3em;
      }
      .page-dt88__section-title {
        font-size: 2em;
      }
      .page-dt88__feature-title,
      .page-dt88__game-title {
        font-size: 1.3em;
      }
      .page-dt88__cta-title {
        font-size: 2.2em;
      }
      .page-dt88__cta-description {
        font-size: 1.1em;
      }
    }

    @media (max-width: 768px) {
      .page-dt88__hero-title {
        font-size: 2.5em;
      }
      .page-dt88__hero-subtitle {
        font-size: 1.1em;
      }
      .page-dt88__button-group {
        flex-direction: column;
        gap: 15px;
      }
      .page-dt88__action-button {
        width: 80%;
        margin: 0 auto;
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-dt88__section {
        padding: 40px 15px;
      }
      .page-dt88__section-title {
        font-size: 1.8em;
      }
      .page-dt88__text-content {
        font-size: 1em;
      }
      .page-dt88__features-grid,
      .page-dt88__game-grid {
        grid-template-columns: 1fr;
        gap: 25px;
      }
      .page-dt88__feature-item,
      .page-dt88__game-card {
        padding: 25px;
      }
      .page-dt88__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
      }
      .page-dt88__faq-toggle {
        font-size: 1.5em;
      }
      .page-dt88__faq-answer {
        padding: 0 20px;
      }
      .page-dt88__faq-item.active .page-dt88__faq-answer {
        padding: 15px 20px !important;
      }
      .page-dt88__cta-title {
        font-size: 2em;
      }
      .page-dt88__cta-description {
        font-size: 1em;
      }

      /* List item specific responsive styles */
      .page-dt88__features-grid > *,
      .page-dt88__game-grid > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
      .page-dt88__features-grid,
      .page-dt88__game-grid {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
    }

    @media (max-width: 480px) {
      .page-dt88__hero-title {
        font-size: 2em;
      }
      .page-dt88__hero-subtitle {
        font-size: 1em;
      }
      .page-dt88__action-button {
        width: 90%;
        padding: 10px 20px;
        font-size: 0.9em;
      }
      .page-dt88__section-title {
        font-size: 1.5em;
      }
      .page-dt88__feature-title,
      .page-dt88__game-title {
        font-size: 1.2em;
      }
      .page-dt88__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-dt88__faq-answer {
        padding: 0 15px;
      }
      .page-dt88__faq-item.active .page-dt88__faq-answer {
        padding: 12px 15px !important;
      }
      .page-dt88__cta-title {
        font-size: 1.8em;
      }
      .page-dt88__cta-description {
        font-size: 0.9em;
      }
    }