:root {
      --page-8ket-primary-color: #e44d26; /* Cam đỏ */
      --page-8ket-secondary-color: #333; /* Xám đậm */
      --page-8ket-accent-color: #f7b200; /* Vàng cam */
      --page-8ket-light-bg: #f8f8f8; /* Nền sáng */
      --page-8ket-dark-bg: #222; /* Nền tối */
      --page-8ket-text-color: #333; /* Màu chữ chính */
      --page-8ket-light-text: #fff; /* Màu chữ sáng */
      --page-8ket-border-color: #ddd; /* Màu viền */
      --page-8ket-shadow: rgba(0, 0, 0, 0.1); /* Đổ bóng */
    }

    .page-8ket {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-8ket-text-color);
      background-color: var(--page-8ket-light-bg);
      overflow-x: hidden;
    }

    .page-8ket__section {
      padding: 40px 15px;
      margin-bottom: 20px;
      background-color: var(--page-8ket-light-text);
      border-radius: 8px;
      box-shadow: 0 2px 10px var(--page-8ket-shadow);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }

    .page-8ket__section--dark {
      background-color: var(--page-8ket-dark-bg);
      color: var(--page-8ket-light-text);
    }

    .page-8ket__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-8ket__heading {
      color: var(--page-8ket-primary-color);
      text-align: center;
      margin-bottom: 30px;
      font-size: 2.5em;
      font-weight: 700;
    }

    .page-8ket__subheading {
      color: var(--page-8ket-secondary-color);
      text-align: center;
      margin-bottom: 20px;
      font-size: 1.8em;
    }

    .page-8ket__paragraph {
      margin-bottom: 15px;
      font-size: 1.1em;
      line-height: 1.7;
    }

    .page-8ket__link,
    .page-8ket__button {
      display: inline-block;
      background-color: var(--page-8ket-primary-color);
      color: var(--page-8ket-light-text);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-align: center;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-8ket__link:hover,
    .page-8ket__button:hover {
      background-color: #c0392b; /* Màu đỏ đậm hơn */
      transform: translateY(-2px);
    }

    .page-8ket__link--secondary {
      background-color: var(--page-8ket-accent-color);
      color: var(--page-8ket-dark-bg);
    }

    .page-8ket__link--secondary:hover {
      background-color: #e6a000;
    }

    /* Hero Section */
    .page-8ket__hero-section {
      position: relative;
      text-align: center;
      padding-top: 10px; /* Adjusted for fixed header */
      margin-bottom: 20px;
      box-sizing: border-box;
    }

    .page-8ket__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-8ket__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
    }

    .page-8ket__hero-content {
      position: relative;
      z-index: 10;
      padding: 20px 15px;
      background-color: rgba(255, 255, 255, 0.9);
      border-radius: 8px;
      margin-top: -50px; /* Overlap with image for visual appeal */
      box-shadow: 0 5px 15px var(--page-8ket-shadow);
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-8ket__hero-title {
      color: var(--page-8ket-primary-color);
      font-size: 2.8em;
      margin-bottom: 10px;
      font-weight: 800;
    }

    .page-8ket__hero-description {
      font-size: 1.3em;
      margin-bottom: 25px;
      color: var(--page-8ket-secondary-color);
    }

    /* Floating Login Button */
    .page-8ket__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: var(--page-8ket-accent-color);
      color: var(--page-8ket-dark-bg);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      animation: page-8ket__pulse 1.5s infinite;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1em;
      text-transform: uppercase;
      white-space: nowrap;
    }

    .page-8ket__floating-button:hover {
      background-color: #e6a000;
      animation: none;
      transform: scale(1.05);
    }

    @keyframes page-8ket__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Game Categories */
    .page-8ket__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-8ket__game-card {
      background-color: var(--page-8ket-light-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
    }

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

    .page-8ket__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for consistency */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-8ket__game-card-image {
      max-width: 100%;
      height: 100%;
      object-fit: cover; /* Ensures images cover the area without distortion */
      display: block;
    }

    .page-8ket__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-8ket__game-card-title {
      font-size: 1.4em;
      color: var(--page-8ket-primary-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-8ket__game-card-description {
      font-size: 0.95em;
      color: var(--page-8ket-secondary-color);
      margin-bottom: 15px;
    }

    .page-8ket__game-card .page-8ket__link {
      margin-top: auto; /* Pushes button to the bottom */
      width: fit-content;
      margin-left: auto;
      margin-right: auto;
      padding: 10px 20px;
      font-size: 0.9em;
    }

    /* Promotions Section */
    .page-8ket__promo-card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-8ket__promo-card {
      background-color: var(--page-8ket-light-text);
      border-radius: 10px;
      box-shadow: 0 5px 20px var(--page-8ket-shadow);
      padding: 25px;
      text-align: center;
      transition: transform 0.3s ease;
      border: 1px solid var(--page-8ket-border-color);
    }

    .page-8ket__promo-card:hover {
      transform: translateY(-5px);
    }

    .page-8ket__promo-icon-wrapper {
      width: 100px;
      height: 100px;
      margin: 0 auto 20px;
      background-color: var(--page-8ket-accent-color);
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 3em;
      color: var(--page-8ket-dark-bg);
      font-weight: bold;
    }

    .page-8ket__promo-title {
      font-size: 1.8em;
      color: var(--page-8ket-primary-color);
      margin-bottom: 10px;
    }

    .page-8ket__promo-description {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    /* Guide Section */
    .page-8ket__guide-steps {
      display: flex;
      flex-direction: column;
      gap: 25px;
      margin-top: 30px;
    }

    .page-8ket__guide-step {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      background-color: var(--page-8ket-light-bg);
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      border-left: 5px solid var(--page-8ket-primary-color);
    }

    .page-8ket__step-number {
      font-size: 2.2em;
      font-weight: bold;
      color: var(--page-8ket-primary-color);
      flex-shrink: 0;
    }

    .page-8ket__step-content h3 {
      font-size: 1.5em;
      color: var(--page-8ket-secondary-color);
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-8ket__step-content p {
      margin-bottom: 0;
    }

    /* App Download Section */
    .page-8ket__app-flex {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 40px;
      margin-top: 30px;
    }

    .page-8ket__app-image-wrapper {
      flex: 1 1 300px;
      text-align: center;
      max-width: 400px;
      width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-8ket__app-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-8ket__app-info {
      flex: 2 1 400px;
      max-width: 600px;
      text-align: center;
    }

    .page-8ket__app-info h3 {
      font-size: 2em;
      color: var(--page-8ket-primary-color);
      margin-bottom: 15px;
    }

    .page-8ket__app-info p {
      font-size: 1.1em;
      margin-bottom: 25px;
    }

    .page-8ket__download-buttons {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
    }

    /* FAQ Section */
    .page-8ket__faq-list {
      margin-top: 30px;
    }

    .page-8ket__faq-item {
      background-color: var(--page-8ket-light-bg);
      border: 1px solid var(--page-8ket-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-8ket__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      cursor: pointer;
      background-color: var(--page-8ket-light-text);
      font-size: 1.2em;
      font-weight: 600;
      color: var(--page-8ket-secondary-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-8ket__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-8ket__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-8ket-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-8ket__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-8ket-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-8ket__faq-item.active .page-8ket__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or similar */
    }
    
    .page-8ket__faq-item.active .page-8ket__faq-toggle::before {
      content: "−"; /* Change '+' to '-' */
      transform: rotate(0deg);
    }

    .page-8ket__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: var(--page-8ket-light-bg);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--page-8ket-text-color);
    }

    .page-8ket__faq-item.active .page-8ket__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 20px !important;
      opacity: 1;
    }

    .page-8ket__faq-answer p {
      margin-bottom: 0;
    }

    /* Call to Action Section */
    .page-8ket__cta-section {
      text-align: center;
      background-color: var(--page-8ket-primary-color);
      color: var(--page-8ket-light-text);
      padding: 50px 15px;
      border-radius: 8px;
    }

    .page-8ket__cta-section h2 {
      color: var(--page-8ket-light-text);
      font-size: 2.8em;
      margin-bottom: 20px;
    }

    .page-8ket__cta-section p {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-8ket__cta-section .page-8ket__link {
      background-color: var(--page-8ket-accent-color);
      color: var(--page-8ket-dark-bg);
      padding: 15px 35px;
      font-size: 1.2em;
      border-radius: 50px;
    }

    .page-8ket__cta-section .page-8ket__link:hover {
      background-color: #e6a000;
    }

    /* Floating Ad Menu */
    .page-8ket__floating-ad {
      position: fixed;
      top: 50%;
      left: 0;
      transform: translateY(-50%);
      background-color: var(--page-8ket-primary-color);
      color: var(--page-8ket-light-text);
      padding: 10px 15px;
      border-radius: 0 8px 8px 0;
      box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
      z-index: 999;
      display: none; /* Hidden by default, JS will show/hide */
      flex-direction: column;
      gap: 10px;
      font-size: 0.9em;
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-8ket__floating-ad.active {
      display: flex;
    }

    .page-8ket__floating-ad-toggle {
      background-color: var(--page-8ket-accent-color);
      color: var(--page-8ket-dark-bg);
      border: none;
      padding: 5px 10px;
      border-radius: 5px;
      cursor: pointer;
      font-weight: bold;
      margin-top: 10px;
    }

    .page-8ket__floating-ad-toggle:hover {
      background-color: #e6a000;
    }

    .page-8ket__floating-ad-item {
      display: block;
      color: var(--page-8ket-light-text);
      text-decoration: none;
      padding: 5px 0;
      transition: color 0.3s ease;
    }

    .page-8ket__floating-ad-item:hover {
      color: var(--page-8ket-accent-color);
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-8ket__hero-title {
        font-size: 2.2em;
      }
      .page-8ket__hero-description {
        font-size: 1.1em;
      }
      .page-8ket__heading {
        font-size: 2em;
      }
      .page-8ket__subheading {
        font-size: 1.5em;
      }
      .page-8ket__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
      .page-8ket__promo-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      }
      .page-8ket__app-flex {
        flex-direction: column;
      }
      .page-8ket__app-info {
        order: 1;
      }
      .page-8ket__app-image-wrapper {
        order: 2;
      }
    }

    @media (max-width: 768px) {
      .page-8ket__hero-section {
        padding-top: 10px; /* Ensure content is below fixed header */
      }
      .page-8ket__hero-title {
        font-size: 1.8em;
      }
      .page-8ket__hero-description {
        font-size: 1em;
      }
      .page-8ket__heading {
        font-size: 1.8em;
      }
      .page-8ket__subheading {
        font-size: 1.3em;
      }
      .page-8ket__section {
        padding: 30px 10px;
      }
      .page-8ket__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-8ket__game-grid {
        grid-template-columns: 1fr;
      }
      .page-8ket__promo-card-grid {
        grid-template-columns: 1fr;
      }
      .page-8ket__guide-step {
        flex-direction: column;
        text-align: center;
        align-items: center;
      }
      .page-8ket__step-number {
        margin-bottom: 10px;
      }
      .page-8ket__step-content h3 {
        font-size: 1.3em;
      }
      .page-8ket__app-image {
        max-width: 80%;
      }
      .page-8ket__download-buttons {
        flex-direction: column;
        gap: 10px;
      }
      .page-8ket__cta-section h2 {
        font-size: 2.2em;
      }
      .page-8ket__cta-section p {
        font-size: 1.1em;
      }
      .page-8ket__cta-section .page-8ket__link {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-8ket__faq-question {
        padding: 15px 15px;
        font-size: 1.1em;
      }
      .page-8ket__faq-question h3 {
        font-size: 1.1em;
      }
      .page-8ket__faq-answer {
        padding: 0 15px;
      }
      .page-8ket__faq-item.active .page-8ket__faq-answer {
        padding: 15px 15px !important;
      }
      /* Image responsive optimization for mobile */
      .page-8ket img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-8ket__hero-image-wrapper,
      .page-8ket__game-card-image-wrapper,
      .page-8ket__app-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }