:root {
      --page-qq8com-primary-color: #e44d26; /* Cam đậm */
      --page-qq8com-secondary-color: #f7b731; /* Vàng cam */
      --page-qq8com-accent-color: #2a7e19; /* Xanh lá cây */
      --page-qq8com-text-color: #333;
      --page-qq8com-light-text-color: #f0f0f0;
      --page-qq8com-background-light: #f9f9f9;
      --page-qq8com-background-dark: #2c3e50; /* Xám đậm */
      --page-qq8com-border-color: #ddd;
      --page-qq8com-shadow: rgba(0, 0, 0, 0.1);
    }

    .page-qq8com {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-qq8com-text-color);
      background-color: var(--page-qq8com-background-light);
      padding: 0;
      margin: 0;
      overflow-x: hidden;
    }

    .page-qq8com__section {
      padding: 40px 20px;
      margin: 0 auto;
      max-width: 1200px;
      box-sizing: border-box;
    }

    .page-qq8com__section--dark {
      background-color: var(--page-qq8com-background-dark);
      color: var(--page-qq8com-light-text-color);
    }

    .page-qq8com__hero-section {
      position: relative;
      width: 100%;
      min-height: 450px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--page-qq8com-light-text-color);
      overflow: hidden;
      padding-top: 10px; /* Adjust for fixed header */
      box-sizing: border-box;
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)); /* Overlay for text readability */
    }

    .page-qq8com__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
    }

    .page-qq8com__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      padding: 20px;
    }

    .page-qq8com__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: #fff;
    }

    .page-qq8com__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #eee;
    }

    .page-qq8com__button {
      display: inline-block;
      background-color: var(--page-qq8com-primary-color);
      color: #fff;
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-qq8com__button:hover {
      background-color: #c74220;
      transform: translateY(-2px);
    }

    .page-qq8com__heading {
      font-size: 2.2em;
      color: var(--page-qq8com-primary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-qq8com__heading::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-qq8com-secondary-color);
      border-radius: 2px;
    }

    .page-qq8com__text-content {
      font-size: 1.1em;
      text-align: justify;
      margin-bottom: 20px;
      color: var(--page-qq8com-text-color);
    }

    .page-qq8com__text-content p {
      margin-bottom: 15px;
    }

    .page-qq8com__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-qq8com__game-card {
      background-color: #fff;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 20px var(--page-qq8com-shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-qq8com__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px var(--page-qq8com-shadow);
    }

    .page-qq8com__game-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-qq8com__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-qq8com__game-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .page-qq8com__game-title {
      font-size: 1.5em;
      color: var(--page-qq8com-primary-color);
      margin-bottom: 10px;
    }

    .page-qq8com__game-description {
      font-size: 0.95em;
      color: #555;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-qq8com__promotion-card {
      background-color: var(--page-qq8com-background-dark);
      color: var(--page-qq8com-light-text-color);
      border-radius: 12px;
      padding: 30px;
      text-align: center;
      box-shadow: 0 6px 20px var(--page-qq8com-shadow);
      margin-bottom: 30px;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .page-qq8com__promotion-card::before {
      content: '🎁';
      font-size: 3em;
      position: absolute;
      top: 15px;
      left: 15px;
      opacity: 0.2;
    }

    .page-qq8com__promotion-card-title {
      font-size: 1.8em;
      color: var(--page-qq8com-secondary-color);
      margin-bottom: 15px;
      z-index: 1;
    }

    .page-qq8com__promotion-card-description {
      font-size: 1.1em;
      margin-bottom: 25px;
      z-index: 1;
    }

    .page-qq8com__steps-list {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-qq8com__step-item {
      background-color: #fff;
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 4px 15px var(--page-qq8com-shadow);
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease;
      box-sizing: border-box; /* Crucial for responsive list items */
    }

    .page-qq8com__step-item:hover {
      transform: translateY(-5px);
    }

    .page-qq8com__step-number {
      font-size: 2.5em;
      color: var(--page-qq8com-primary-color);
      font-weight: bold;
      margin-bottom: 15px;
      display: block;
    }

    .page-qq8com__step-title {
      font-size: 1.4em;
      color: var(--page-qq8com-background-dark);
      margin-bottom: 15px;
    }

    .page-qq8com__step-description {
      font-size: 1em;
      color: #666;
    }

    .page-qq8com__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-qq8com__feature-card {
      background-color: #fff;
      border-radius: 12px;
      padding: 30px;
      box-shadow: 0 4px 15px var(--page-qq8com-shadow);
      text-align: center;
      transition: transform 0.3s ease;
      box-sizing: border-box; /* Crucial for responsive list items */
    }

    .page-qq8com__feature-card:hover {
      transform: translateY(-5px);
    }

    .page-qq8com__feature-icon-wrapper {
      width: 80px;
      height: 80px;
      margin: 0 auto 20px auto;
      background-color: var(--page-qq8com-secondary-color);
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 2.5em;
      color: #fff;
    }

    .page-qq8com__feature-title {
      font-size: 1.4em;
      color: var(--page-qq8com-background-dark);
      margin-bottom: 15px;
    }

    .page-qq8com__feature-description {
      font-size: 1em;
      color: #666;
    }

    /* FAQ Section */
    .page-qq8com__faq-container {
      max-width: 900px;
      margin: 40px auto;
      background-color: #fff;
      border-radius: 12px;
      box-shadow: 0 6px 20px var(--page-qq8com-shadow);
      overflow: hidden;
    }

    .page-qq8com__faq-item {
      border-bottom: 1px solid var(--page-qq8com-border-color);
    }

    .page-qq8com__faq-item:last-child {
      border-bottom: none;
    }

    .page-qq8com__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: #f0f0f0;
      transition: background-color 0.3s ease;
    }

    .page-qq8com__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-qq8com__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-qq8com-background-dark);
      pointer-events: none; /* Prevent text selection from interfering with click */
    }

    .page-qq8com__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-qq8com-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from interfering with click */
    }

    .page-qq8com__faq-item.active .page-qq8com__faq-toggle {
      transform: rotate(45deg); /* Changes + to X or similar */
    }

    .page-qq8com__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      opacity: 0;
      color: #555;
      font-size: 1em;
    }

    .page-qq8com__faq-item.active .page-qq8com__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-qq8com__faq-answer p {
      margin-bottom: 10px;
    }

    /* Floating Login Button */
    .page-qq8com__floating-button-wrapper {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      width: 90%;
      max-width: 400px;
      text-align: center;
    }

    .page-qq8com__floating-button {
      background-color: var(--page-qq8com-accent-color);
      color: #fff;
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease;
      display: block; /* Make it block to take full wrapper width */
      white-space: nowrap; /* Prevent text wrapping */
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .page-qq8com__floating-button:hover {
      background-color: #226b14;
      transform: translateY(-3px) translateX(-50%);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-qq8com__section {
        padding: 30px 15px;
      }

      .page-qq8com__hero-section {
        min-height: 350px;
        padding-top: 10px; /* Ensure padding for fixed header */
      }

      .page-qq8com__hero-title {
        font-size: 2em;
      }

      .page-qq8com__hero-subtitle {
        font-size: 1em;
      }

      .page-qq8com__heading {
        font-size: 1.8em;
        margin-bottom: 30px;
      }

      .page-qq8com__text-content {
        font-size: 1em;
      }

      .page-qq8com__games-grid,
      .page-qq8com__steps-list,
      .page-qq8com__features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-qq8com__game-card,
      .page-qq8com__step-item,
      .page-qq8com__feature-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 15px; /* Adjust padding to fit screen */
        padding-right: 15px; /* Adjust padding to fit screen */
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-qq8com__game-content,
      .page-qq8com__step-item,
      .page-qq8com__feature-card {
        padding: 20px 15px; /* Adjust padding for mobile */
      }

      .page-qq8com__floating-button-wrapper {
        width: calc(100% - 40px); /* Account for screen padding */
        bottom: 15px;
      }

      .page-qq8com__floating-button {
        font-size: 1.1em;
        padding: 12px 20px;
      }

      .page-qq8com__faq-question {
        padding: 15px 20px;
      }

      .page-qq8com__faq-question h3 {
        font-size: 1.1em;
      }

      .page-qq8com__faq-answer {
        padding: 0 20px;
      }

      .page-qq8com__faq-item.active .page-qq8com__faq-answer {
        padding: 15px 20px !important;
      }

      /* Image responsive adjustments */
      .page-qq8com__hero-background,
      .page-qq8com__game-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-qq8com__game-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-qq8com__hero-title {
        font-size: 1.8em;
      }
      .page-qq8com__hero-subtitle {
        font-size: 0.9em;
      }
      .page-qq8com__button {
        padding: 10px 20px;
        font-size: 0.9em;
      }
      .page-qq8com__heading {
        font-size: 1.6em;
      }
    }