/* Tổng thể và biến */
    :root {
      --page-lu88__primary-color: #e44d26; /* Cam đỏ */
      --page-lu88__secondary-color: #333; /* Xám đậm */
      --page-lu88__accent-color: #f7b100; /* Vàng hổ phách */
      --page-lu88__background-light: #f9f9f9;
      --page-lu88__background-dark: #2a2a2a;
      --page-lu88__text-light: #fff;
      --page-lu88__text-dark: #333;
      --page-lu88__border-color: #ddd;
      --page-lu88__border-radius: 8px;
      --page-lu88__padding-section: 40px 20px;
      --page-lu88__padding-mobile: 20px 15px;
    }

    .page-lu88 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-lu88__text-dark);
      background-color: var(--page-lu88__background-light);
    }

    /* Thiết lập chung cho các section */
    .page-lu88__section {
      padding: var(--page-lu88__padding-section);
      margin-bottom: 20px;
      background-color: var(--page-lu88__text-light);
      border-radius: var(--page-lu88__border-radius);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .page-lu88__section:last-of-type {
      margin-bottom: 0;
    }

    .page-lu88__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-lu88__heading-primary {
      font-size: 2.5em;
      color: var(--page-lu88__primary-color);
      text-align: center;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-lu88__heading-secondary {
      font-size: 2em;
      color: var(--page-lu88__secondary-color);
      text-align: center;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-lu88__heading-secondary::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-lu88__primary-color);
      border-radius: 2px;
    }

    .page-lu88__text {
      font-size: 1em;
      margin-bottom: 15px;
      line-height: 1.8;
    }

    .page-lu88__button {
      display: inline-block;
      background-color: var(--page-lu88__primary-color);
      color: var(--page-lu88__text-light);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-lu88__button:hover {
      background-color: #d1411e;
      transform: translateY(-2px);
    }

    /* Hero Section */
    .page-lu88__hero-section {
      position: relative;
      width: 100%;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--page-lu88__text-light);
      min-height: 400px;
      padding-top: 10px; /* For fixed header */
    }

    .page-lu88__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
    }

    .page-lu88__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: var(--page-lu88__border-radius);
      max-width: 90%;
    }

    .page-lu88__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: var(--page-lu88__text-light);
    }

    .page-lu88__hero-subtitle {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: var(--page-lu88__text-light);
    }

    /* Floating Login Button */
    .page-lu88__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      background-color: var(--page-lu88__accent-color);
      color: var(--page-lu88__text-dark);
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      animation: page-lu88__pulse 2s infinite;
      text-decoration: none;
      white-space: nowrap;
    }

    .page-lu88__floating-button:hover {
      background-color: #e6a200;
      transform: translateX(-50%) translateY(-3px);
    }

    @keyframes page-lu88__pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.05); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Product/Game Display */
    .page-lu88__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-lu88__game-card {
      background-color: var(--page-lu88__background-light);
      border-radius: var(--page-lu88__border-radius);
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-lu88__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    }

    .page-lu88__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-lu88__game-card-content {
      padding: 20px;
    }

    .page-lu88__game-card-title {
      font-size: 1.3em;
      color: var(--page-lu88__secondary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-lu88__game-card-description {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 15px;
    }

    /* Features List */
    .page-lu88__features-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .page-lu88__feature-item {
      background-color: var(--page-lu88__background-light);
      padding: 20px;
      border-radius: var(--page-lu88__border-radius);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.2s ease;
      box-sizing: border-box; /* Crucial for responsive list items */
    }

    .page-lu88__feature-item:hover {
      transform: translateY(-3px);
    }

    .page-lu88__feature-icon {
      width: 80px; /* Min size for image, not icon */
      height: 80px;
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
      object-fit: contain;
    }

    .page-lu88__feature-title {
      font-size: 1.2em;
      color: var(--page-lu88__primary-color);
      margin-bottom: 10px;
    }

    .page-lu88__feature-description {
      font-size: 0.95em;
      color: #555;
    }

    /* FAQ Section */
    .page-lu88__faq-list {
      margin-top: 30px;
    }

    .page-lu88__faq-item {
      background-color: var(--page-lu88__background-light);
      border: 1px solid var(--page-lu88__border-color);
      border-radius: var(--page-lu88__border-radius);
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-lu88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #fff;
      font-weight: bold;
      color: var(--page-lu88__secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-lu88__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-lu88__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from intercepting click */
      color: var(--page-lu88__secondary-color);
    }

    .page-lu88__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      color: var(--page-lu88__primary-color);
      pointer-events: none; /* Prevent toggle icon from intercepting click */
      transition: transform 0.3s ease;
    }

    .page-lu88__faq-item.active .page-lu88__faq-toggle {
      transform: rotate(45deg);
    }

    .page-lu88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
      font-size: 0.95em;
    }

    .page-lu88__faq-item.active .page-lu88__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-lu88__hero-section {
        min-height: 300px;
        padding-top: 10px; /* For fixed header */
      }

      .page-lu88__hero-title {
        font-size: 2em;
      }

      .page-lu88__hero-subtitle {
        font-size: 1em;
      }

      .page-lu88__heading-primary {
        font-size: 2em;
      }

      .page-lu88__heading-secondary {
        font-size: 1.5em;
      }

      .page-lu88__section {
        padding: var(--page-lu88__padding-mobile);
      }

      .page-lu88__game-grid {
        grid-template-columns: 1fr;
      }

      .page-lu88__features-list {
        grid-template-columns: 1fr;
      }

      /* List item responsive specific overrides */
      .page-lu88__features-list,
      .page-lu88__faq-list {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-lu88__feature-item,
      .page-lu88__faq-item {
        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-lu88__game-card-image,
      .page-lu88__feature-icon {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      
      .page-lu88__game-card {
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-lu88__floating-button {
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-lu88__faq-question {
        padding: 12px 15px;
      }

      .page-lu88__faq-question h3 {
        font-size: 1em;
      }

      .page-lu88__faq-answer {
        padding: 15px 15px !important;
      }
    }

    @media (max-width: 480px) {
      .page-lu88__hero-title {
        font-size: 1.8em;
      }

      .page-lu88__hero-subtitle {
        font-size: 0.9em;
      }

      .page-lu88__button {
        padding: 10px 20px;
        font-size: 0.9em;
      }
    }