:root {
      --page-xoso66-primary-color: #e44d26; /* Cam-đỏ */
      --page-xoso66-secondary-color: #f5f5f5; /* Trắng nhạt */
      --page-xoso66-background-color: #1a1a1a; /* Xám đen */
      --page-xoso66-text-color: #f5f5f5; /* Trắng nhạt */
      --page-xoso66-dark-text-color: #333333; /* Xám đậm */
      --page-xoso66-border-color: #333333; /* Xám */
    }

    .page-xoso66 {
      font-family: 'Arial', sans-serif;
      color: var(--page-xoso66-text-color);
      background-color: var(--page-xoso66-background-color);
      line-height: 1.6;
      padding-bottom: 80px; /* Cho nút nổi */
    }

    .page-xoso66__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    /* Đảm bảo nội dung không bị che bởi header cố định */
    .page-xoso66__hero-section {
      padding-top: 120px; /* Khoảng cách cho header cố định */
      text-align: center;
      background-color: #0d0d0d;
      padding-bottom: 40px;
    }

    .page-xoso66__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    .page-xoso66__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

    .page-xoso66__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-xoso66-primary-color);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-xoso66__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: var(--page-xoso66-secondary-color);
    }

    .page-xoso66__cta-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-xoso66__cta-button {
      display: inline-block;
      background-color: var(--page-xoso66-primary-color);
      color: var(--page-xoso66-text-color);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      border: none;
      cursor: pointer;
    }

    .page-xoso66__cta-button:hover {
      background-color: #ff6f40;
      transform: translateY(-3px);
    }

    .page-xoso66__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-xoso66__section:nth-of-type(even) {
      background-color: #222222;
    }

    .page-xoso66__section-title {
      font-size: 2.2em;
      margin-bottom: 40px;
      color: var(--page-xoso66-primary-color);
      position: relative;
      padding-bottom: 10px;
    }

    .page-xoso66__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-xoso66-primary-color);
      border-radius: 2px;
    }

    .page-xoso66__text-content {
      max-width: 900px;
      margin: 0 auto 40px auto;
      font-size: 1.1em;
      color: var(--page-xoso66-secondary-color);
    }

    .page-xoso66__text-content p {
      margin-bottom: 1em;
    }

    .page-xoso66__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-xoso66__game-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-xoso66__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    }

    .page-xoso66__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-xoso66__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .page-xoso66__game-card:hover .page-xoso66__game-card-image {
      transform: scale(1.05);
    }

    .page-xoso66__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-xoso66__game-card-title {
      font-size: 1.4em;
      margin-bottom: 10px;
      color: var(--page-xoso66-primary-color);
    }

    .page-xoso66__game-card-description {
      font-size: 0.95em;
      color: var(--page-xoso66-secondary-color);
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-xoso66__game-card-link {
      display: inline-block;
      background-color: var(--page-xoso66-primary-color);
      color: var(--page-xoso66-text-color);
      padding: 10px 20px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-xoso66__game-card-link:hover {
      background-color: #ff6f40;
    }

    .page-xoso66__step-list {
      list-style: none;
      padding: 0;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 40px;
    }

    .page-xoso66__step-item {
      background-color: #2a2a2a;
      border-radius: 10px;
      padding: 30px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      width: calc(33% - 20px);
      min-width: 280px;
      text-align: center;
      position: relative;
      flex-grow: 1;
    }

    .page-xoso66__step-number {
      background-color: var(--page-xoso66-primary-color);
      color: var(--page-xoso66-text-color);
      border-radius: 50%;
      width: 50px;
      height: 50px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.8em;
      font-weight: bold;
      margin: -55px auto 20px auto;
      border: 3px solid var(--page-xoso66-background-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    }

    .page-xoso66__step-title {
      font-size: 1.5em;
      color: var(--page-xoso66-primary-color);
      margin-bottom: 15px;
    }

    .page-xoso66__step-description {
      color: var(--page-xoso66-secondary-color);
      font-size: 1em;
    }

    .page-xoso66__app-download {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 25px;
      margin-top: 40px;
    }

    .page-xoso66__app-download-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      max-width: 400px; /* Adjust as needed */
    }

    .page-xoso66__app-download-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
    }

    .page-xoso66__app-buttons {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }

    .page-xoso66__app-button {
      background-color: var(--page-xoso66-primary-color);
      color: var(--page-xoso66-text-color);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-xoso66__app-button:hover {
      background-color: #ff6f40;
      transform: translateY(-2px);
    }

    .page-xoso66__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 40px;
    }

    .page-xoso66__provider-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      padding: 15px;
      display: flex;
      justify-content: center;
      align-items: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
    }

    .page-xoso66__provider-item:hover {
      transform: translateY(-5px);
    }

    .page-xoso66__provider-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100px; /* Ensure consistent height for logos */
    }

    .page-xoso66__provider-logo {
      max-width: 100%;
      max-height: 100%;
      height: auto;
      display: block;
      object-fit: contain;
    }

    .page-xoso66__faq-list {
      margin-top: 40px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-xoso66__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-xoso66__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #333333;
      border-bottom: 1px solid #444444;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-xoso66__faq-question:hover {
      background-color: #444444;
    }

    .page-xoso66__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-xoso66-primary-color);
      pointer-events: none; /* Prevent text selection from interfering with click */
    }

    .page-xoso66__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-xoso66-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent text selection from interfering with click */
    }

    .page-xoso66__faq-item.active .page-xoso66__faq-toggle {
      transform: rotate(45deg); /* Plus sign rotates to form an 'x' or minus */
    }

    .page-xoso66__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--page-xoso66-secondary-color);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-xoso66__faq-item.active .page-xoso66__faq-answer {
      max-height: 2000px !important; /* Use !important to ensure override */
      padding: 20px 25px !important; /* Use !important to ensure override */
      opacity: 1;
    }

    .page-xoso66__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #4CAF50; /* Xanh lá cây */
      color: white;
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-align: center;
      line-height: 1.2;
      animation: pulse 2s infinite;
    }

    .page-xoso66__floating-button:hover {
      background-color: #66bb6a;
      transform: translateY(-5px);
    }

    @keyframes pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-xoso66__hero-title {
        font-size: 2.2em;
      }
      .page-xoso66__section-title {
        font-size: 1.8em;
      }
      .page-xoso66__game-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
      .page-xoso66__step-item {
        width: calc(50% - 20px);
      }
    }

    @media (max-width: 768px) {
      .page-xoso66__hero-section {
        padding-top: 100px; /* Điều chỉnh cho mobile header */
      }
      .page-xoso66__hero-title {
        font-size: 1.8em;
      }
      .page-xoso66__hero-description {
        font-size: 1em;
      }
      .page-xoso66__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-xoso66__section {
        padding: 40px 0;
      }
      .page-xoso66__section-title {
        font-size: 1.6em;
        margin-bottom: 30px;
      }
      .page-xoso66__text-content {
        font-size: 0.95em;
      }
      .page-xoso66__game-grid {
        grid-template-columns: 1fr;
      }
      .page-xoso66__step-item {
        width: 100%;
        margin-bottom: 20px;
      }
      .page-xoso66__app-download {
        flex-direction: column;
      }
      .page-xoso66__app-buttons {
        flex-direction: column;
        width: 100%;
      }
      .page-xoso66__app-button {
        width: calc(100% - 40px);
        margin: 0 auto;
      }
      .page-xoso66__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-xoso66__faq-question {
        padding: 15px 20px;
      }
      .page-xoso66__faq-question h3 {
        font-size: 1.1em;
      }
      .page-xoso66__faq-answer {
        padding: 0 20px;
      }
      .page-xoso66__faq-item.active .page-xoso66__faq-answer {
        padding: 15px 20px !important;
      }
      .page-xoso66__floating-button {
        padding: 12px 20px;
        font-size: 0.95em;
        bottom: 15px;
        right: 15px;
      }
      .page-xoso66__hero-image-wrapper img,
      .page-xoso66__game-card-image-wrapper img,
      .page-xoso66__app-download-image-wrapper img,
      .page-xoso66__provider-logo-wrapper img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-xoso66__hero-image-wrapper,
      .page-xoso66__game-card-image-wrapper,
      .page-xoso66__app-download-image-wrapper,
      .page-xoso66__provider-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-xoso66__hero-title {
        font-size: 1.6em;
      }
      .page-xoso66__cta-buttons {
        flex-direction: column;
      }
      .page-xoso66__cta-button {
        width: calc(100% - 60px);
      }
      .page-xoso66__section-title {
        font-size: 1.4em;
      }
      .page-xoso66__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
    }