:root {
      --page-22lucky8-primary-color: #0056b3; /* Xanh đậm */
      --page-22lucky8-secondary-color: #ffc107; /* Vàng */
      --page-22lucky8-accent-color: #dc3545; /* Đỏ */
      --page-22lucky8-text-color: #333;
      --page-22lucky8-light-bg: #f8f9fa;
      --page-22lucky8-dark-bg: #212529;
      --page-22lucky8-white: #ffffff;
      --page-22lucky8-border-color: #e0e0e0;
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-22lucky8-text-color);
      background-color: var(--page-22lucky8-light-bg);
      margin: 0;
      padding: 0;
    }

    .page-22lucky8__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-22lucky8__section {
      padding: 40px 0;
      margin-bottom: 20px;
      background-color: var(--page-22lucky8-white);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .page-22lucky8__section--dark {
      background-color: var(--page-22lucky8-dark-bg);
      color: var(--page-22lucky8-white);
    }

    .page-22lucky8__section-title {
      text-align: center;
      color: var(--page-22lucky8-primary-color);
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: 700;
    }
    .page-22lucky8__section--dark .page-22lucky8__section-title {
      color: var(--page-22lucky8-secondary-color);
    }

    .page-22lucky8__text-center {
      text-align: center;
    }

    .page-22lucky8__button {
      display: inline-block;
      padding: 15px 30px;
      background-color: var(--page-22lucky8-primary-color);
      color: var(--page-22lucky8-white);
      text-decoration: none;
      border-radius: 50px;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-22lucky8__button:hover {
      background-color: #004085;
      transform: translateY(-2px);
    }

    .page-22lucky8__button--accent {
      background-color: var(--page-22lucky8-accent-color);
    }

    .page-22lucky8__button--accent:hover {
      background-color: #c82333;
    }

    /* Hero Section */
    .page-22lucky8__hero-section {
      position: relative;
      width: 100%;
      height: auto; /* Allow height to adjust based on content */
      color: var(--page-22lucky8-white);
      text-align: center;
      padding-top: 10px; /* Fixed header spacing */
      padding-bottom: 80px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-22lucky8__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      filter: brightness(0.6); /* Darken background for text readability */
    }

    .page-22lucky8__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      padding: 20px;
    }

    .page-22lucky8__hero-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      line-height: 1.2;
      font-weight: 800;
      color: var(--page-22lucky8-white);
    }

    .page-22lucky8__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 30px;
      font-weight: 300;
      color: var(--page-22lucky8-white);
    }

    /* Floating Login Button */
    .page-22lucky8__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      padding: 12px 25px;
      background-color: var(--page-22lucky8-accent-color);
      color: var(--page-22lucky8-white);
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.3s ease;
      font-size: 1em;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-22lucky8__floating-button:hover {
      background-color: #c82333;
      transform: translateY(-3px);
    }

    /* Game Categories */
    .page-22lucky8__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      padding: 0 20px;
    }

    .page-22lucky8__game-card {
      background-color: var(--page-22lucky8-white);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border: 1px solid var(--page-22lucky8-border-color);
    }

    .page-22lucky8__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    }

    .page-22lucky8__game-card-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .page-22lucky8__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-22lucky8__game-card-title {
      font-size: 1.6em;
      color: var(--page-22lucky8-primary-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-22lucky8__game-card-description {
      font-size: 0.95em;
      color: #555;
      line-height: 1.5;
    }

    /* Features List */
    .page-22lucky8__feature-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 25px;
      list-style: none;
      padding: 0 20px;
      margin: 0;
    }

    .page-22lucky8__feature-item {
      background-color: var(--page-22lucky8-white);
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      padding: 25px;
      flex: 1 1 calc(33% - 50px); /* 3 items per row on desktop */
      min-width: 280px;
      max-width: 380px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--page-22lucky8-border-color);
      box-sizing: border-box; /* Important for responsive lists */
    }

    .page-22lucky8__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
    }

    .page-22lucky8__feature-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      object-fit: contain;
    }

    .page-22lucky8__feature-title {
      font-size: 1.4em;
      color: var(--page-22lucky8-primary-color);
      margin-bottom: 10px;
    }

    .page-22lucky8__feature-description {
      font-size: 0.9em;
      color: #666;
    }

    /* Promotions */
    .page-22lucky8__promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      padding: 0 20px;
    }

    .page-22lucky8__promo-card {
      background-color: var(--page-22lucky8-white);
      border-radius: 12px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      border: 1px solid var(--page-22lucky8-border-color);
    }

    .page-22lucky8__promo-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .page-22lucky8__promo-content {
      padding: 20px;
    }

    .page-22lucky8__promo-title {
      font-size: 1.5em;
      color: var(--page-22lucky8-primary-color);
      margin-bottom: 10px;
    }

    .page-22lucky8__promo-description {
      font-size: 0.95em;
      color: #555;
      margin-bottom: 15px;
    }

    /* How-to Steps */
    .page-22lucky8__steps-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      list-style: none;
      padding: 0 20px;
      margin: 0;
    }

    .page-22lucky8__step-item {
      background-color: var(--page-22lucky8-white);
      border-radius: 10px;
      box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
      padding: 25px;
      display: flex;
      align-items: flex-start;
      gap: 20px;
      border: 1px solid var(--page-22lucky8-border-color);
      box-sizing: border-box; /* Important for responsive lists */
    }

    .page-22lucky8__step-number {
      background-color: var(--page-22lucky8-primary-color);
      color: var(--page-22lucky8-white);
      border-radius: 50%;
      width: 40px;
      height: 40px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.3em;
      font-weight: bold;
      flex-shrink: 0;
    }

    .page-22lucky8__step-content h3 {
      font-size: 1.3em;
      color: var(--page-22lucky8-primary-color);
      margin-top: 0;
      margin-bottom: 8px;
    }

    .page-22lucky8__step-content p {
      font-size: 0.95em;
      color: #555;
      margin-bottom: 0;
    }

    /* FAQ Section */
    .page-22lucky8__faq-list {
      max-width: 800px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .page-22lucky8__faq-item {
      background-color: var(--page-22lucky8-white);
      border: 1px solid var(--page-22lucky8-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      box-sizing: border-box;
    }

    .page-22lucky8__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      cursor: pointer;
      background-color: var(--page-22lucky8-white);
      color: var(--page-22lucky8-text-color);
      font-size: 1.15em;
      font-weight: 600;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-22lucky8__faq-question:hover {
      background-color: var(--page-22lucky8-light-bg);
    }

    .page-22lucky8__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      color: var(--page-22lucky8-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-22lucky8__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-22lucky8-primary-color);
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-22lucky8__faq-item.active .page-22lucky8__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - visually */
    }
    .page-22lucky8__faq-item.active .page-22lucky8__faq-toggle::before {
        content: "−"; /* Change + to - */
        transform: rotate(0deg);
    }


    .page-22lucky8__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #555;
      font-size: 1em;
      background-color: var(--page-22lucky8-light-bg);
      border-top: 1px solid var(--page-22lucky8-border-color);
    }

    .page-22lucky8__faq-item.active .page-22lucky8__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 20px !important;
      opacity: 1;
    }
    .page-22lucky8__faq-answer p {
        margin-top: 0;
        margin-bottom: 10px;
    }
    .page-22lucky8__faq-answer p:last-child {
        margin-bottom: 0;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-22lucky8__container {
        padding: 10px;
      }

      .page-22lucky8__hero-section {
        padding-top: 10px; /* Fixed header spacing for mobile */
        padding-bottom: 60px;
      }

      .page-22lucky8__hero-title {
        font-size: 2.5em;
      }

      .page-22lucky8__hero-subtitle {
        font-size: 1.2em;
      }

      .page-22lucky8__section-title {
        font-size: 2em;
        margin-bottom: 25px;
      }

      .page-22lucky8__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 10px 20px;
        font-size: 0.9em;
      }

      .page-22lucky8__game-grid {
        grid-template-columns: 1fr;
        padding: 0 10px;
      }

      .page-22lucky8__feature-list,
      .page-22lucky8__promo-grid,
      .page-22lucky8__steps-list {
        padding: 0 10px;
      }

      .page-22lucky8__feature-item {
        flex: 1 1 100%;
        max-width: 100%;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
        width: 100% !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-22lucky8__feature-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-22lucky8__promo-card {
        margin-bottom: 15px;
      }

      .page-22lucky8__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
        width: 100% !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-22lucky8__step-number {
        margin-bottom: 15px;
      }
      .page-22lucky8__steps-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-22lucky8__faq-question {
        font-size: 1em;
        padding: 15px;
      }
      .page-22lucky8__faq-answer {
        padding: 0 15px;
      }
      .page-22lucky8__faq-item.active .page-22lucky8__faq-answer {
        padding: 15px 15px !important;
      }
      .page-22lucky8__faq-list {
        padding: 0 10px;
      }
    }

    @media (max-width: 480px) {
        .page-22lucky8__hero-title {
            font-size: 2em;
        }
        .page-22lucky8__hero-subtitle {
            font-size: 1em;
        }
        .page-22lucky8__section-title {
            font-size: 1.8em;
        }
        .page-22lucky8__button {
            padding: 12px 20px;
            font-size: 1em;
        }
    }

    /* General image responsiveness */
    .page-22lucky8__section img {
        max-width: 100% !important;
        height: auto !important;
        display: block;
    }
    .page-22lucky8__game-card-image,
    .page-22lucky8__promo-image,
    .page-22lucky8__feature-icon {
        max-width: 100% !important;
        height: auto !important;
        object-fit: cover; /* Maintain aspect ratio and cover area */
    }
    .page-22lucky8__game-card-image {
        height: 200px; /* Fixed height for consistency */
    }
    .page-22lucky8__promo-image {
        height: 180px; /* Fixed height for consistency */
    }
    .page-22lucky8__feature-icon {
        width: 80px; /* Fixed width for consistency */
        height: 80px;
        margin: 0 auto 15px auto; /* Center icons */
        object-fit: contain;
    }