:root {
      --primary-color: #f7931e; /* Cam đặc trưng của 1xbit */
      --secondary-color: #333;
      --accent-color: #007bff;
      --text-color: #eee;
      --dark-bg: #1a1a1a;
      --light-bg: #2a2a2a;
      --border-color: #444;
      --button-hover-bg: #e68a1a;
      --faq-question-bg: #333;
      --faq-answer-bg: #222;
    }

    .page-1xbit-app-di-ng {
      font-family: 'Arial', sans-serif;
      color: var(--text-color);
      background-color: var(--dark-bg);
      line-height: 1.6;
      padding-top: 10px; /* Small padding as body already handles header offset */
    }

    .page-1xbit-app-di-ng__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-1xbit-app-di-ng__section {
      padding: 60px 0;
      text-align: center;
      position: relative;
    }

    .page-1xbit-app-di-ng__section--dark {
      background-color: var(--light-bg);
    }

    .page-1xbit-app-di-ng__section-title {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: 30px;
      text-transform: uppercase;
      font-weight: bold;
      letter-spacing: 1px;
    }

    .page-1xbit-app-di-ng__section-subtitle {
      font-size: 1.5em;
      color: var(--text-color);
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hero Section */
    .page-1xbit-app-di-ng__hero-section {
      background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('[GALLERY:hero:1920x1080:1xbit,app,mobile,betting,hero]') no-repeat center center/cover;
      padding: 100px 0;
      min-height: 600px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #fff;
    }

    .page-1xbit-app-di-ng__hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .page-1xbit-app-di-ng__hero-title {
      font-size: 3.5em;
      color: var(--primary-color);
      margin-bottom: 20px;
      line-height: 1.2;
      font-weight: 900;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    }

    .page-1xbit-app-di-ng__hero-description {
      font-size: 1.3em;
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.5;
    }

    .page-1xbit-app-di-ng__download-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-1xbit-app-di-ng__download-button {
      background-color: var(--primary-color);
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: none; /* Use button tag, so remove border */
      cursor: pointer;
    }

    .page-1xbit-app-di-ng__download-button:hover {
      background-color: var(--button-hover-bg);
      transform: translateY(-3px);
    }

    .page-1xbit-app-di-ng__download-button img {
      width: 24px;
      height: 24px;
      max-width: 100%;
      height: auto;
    }

    /* Features Section */
    .page-1xbit-app-di-ng__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-1xbit-app-di-ng__feature-item {
      background-color: var(--dark-bg);
      padding: 30px;
      border-radius: 15px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      text-align: left;
      border: 1px solid var(--border-color);
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .page-1xbit-app-di-ng__feature-item:hover {
      transform: translateY(-5px);
      border-color: var(--primary-color);
    }

    .page-1xbit-app-di-ng__feature-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 20px;
      background-color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2em;
      color: #fff;
      max-width: 100%;
      height: auto;
    }

    .page-1xbit-app-di-ng__feature-icon img {
      width: 60px; /* Adjust size for content images */
      height: 60px;
      max-width: 100%;
      height: auto;
    }

    .page-1xbit-app-di-ng__feature-title {
      font-size: 1.8em;
      color: var(--primary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-1xbit-app-di-ng__feature-description {
      font-size: 1em;
      color: var(--text-color);
    }

    /* Download Guide Section */
    .page-1xbit-app-di-ng__download-steps {
      display: flex;
      flex-direction: column;
      gap: 30px;
      margin-top: 40px;
    }

    .page-1xbit-app-di-ng__step-item {
      display: flex;
      align-items: center;
      gap: 30px;
      background-color: var(--dark-bg);
      padding: 30px;
      border-radius: 15px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      border: 1px solid var(--border-color);
      text-align: left;
    }

    .page-1xbit-app-di-ng__step-item:nth-child(even) {
      flex-direction: row-reverse;
    }

    .page-1xbit-app-di-ng__step-image-wrapper {
      flex: 1;
      min-width: 250px;
      display: flex;
      justify-content: center;
      align-items: center;
      overflow: hidden;
      box-sizing: border-box;
      max-width: 50%; /* Adjust width for larger images */
    }

    .page-1xbit-app-di-ng__step-image {
      width: 100%;
      height: auto;
      border-radius: 10px;
      object-fit: contain;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__step-content {
      flex: 1;
    }

    .page-1xbit-app-di-ng__step-number {
      font-size: 2.5em;
      color: var(--primary-color);
      font-weight: bold;
      margin-bottom: 10px;
    }

    .page-1xbit-app-di-ng__step-title {
      font-size: 1.8em;
      color: var(--primary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-1xbit-app-di-ng__step-description {
      font-size: 1em;
      color: var(--text-color);
    }

    /* Game Showcase Section */
    .page-1xbit-app-di-ng__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-1xbit-app-di-ng__game-card {
      background-color: var(--dark-bg);
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      border: 1px solid var(--border-color);
      transition: transform 0.3s ease, border-color 0.3s ease;
      text-align: center;
    }

    .page-1xbit-app-di-ng__game-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-color);
    }

    .page-1xbit-app-di-ng__game-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #000;
      box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-1xbit-app-di-ng__game-info {
      padding: 20px;
    }

    .page-1xbit-app-di-ng__game-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-1xbit-app-di-ng__game-description {
      font-size: 0.95em;
      color: var(--text-color);
    }

    /* Promotions Section */
    .page-1xbit-app-di-ng__promo-card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-1xbit-app-di-ng__promo-card {
      background-color: var(--dark-bg);
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      border: 1px solid var(--border-color);
      text-align: left;
      padding: 30px;
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .page-1xbit-app-di-ng__promo-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-color);
    }

    .page-1xbit-app-di-ng__promo-title {
      font-size: 1.8em;
      color: var(--primary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-1xbit-app-di-ng__promo-description {
      font-size: 1em;
      color: var(--text-color);
      margin-bottom: 20px;
    }

    .page-1xbit-app-di-ng__promo-button {
      background-color: var(--accent-color);
      color: #fff;
      padding: 10px 20px;
      border-radius: 25px;
      font-size: 1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      display: inline-block;
      border: none;
      cursor: pointer;
    }

    .page-1xbit-app-di-ng__promo-button:hover {
      background-color: #0056b3;
    }

    /* FAQ Section */
    .page-1xbit-app-di-ng__faq-list {
      margin-top: 40px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
      text-align: left;
    }

    .page-1xbit-app-di-ng__faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      background-color: var(--faq-question-bg);
    }

    .page-1xbit-app-di-ng__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--faq-question-bg);
      color: var(--primary-color);
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-1xbit-app-di-ng__faq-question:hover {
      background-color: #444;
    }

    .page-1xbit-app-di-ng__faq-question h3 {
      margin: 0;
      color: var(--primary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
      flex-grow: 1;
    }

    .page-1xbit-app-di-ng__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
      color: #fff;
    }

    .page-1xbit-app-di-ng__faq-item.active .page-1xbit-app-di-ng__faq-toggle {
      transform: rotate(45deg);
    }

    .page-1xbit-app-di-ng__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: var(--faq-answer-bg);
      color: var(--text-color);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 0.95em;
      text-align: justify;
    }

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

    /* CTA Section */
    .page-1xbit-app-di-ng__cta-section {
      background-color: var(--primary-color);
      color: #fff;
      padding: 80px 0;
    }

    .page-1xbit-app-di-ng__cta-title {
      font-size: 3em;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-1xbit-app-di-ng__cta-description {
      font-size: 1.2em;
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-1xbit-app-di-ng__cta-button {
      background-color: #000;
      color: #fff;
      padding: 18px 40px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.3s ease;
      display: inline-block;
      border: none;
      cursor: pointer;
    }

    .page-1xbit-app-di-ng__cta-button:hover {
      background-color: #333;
      transform: translateY(-3px);
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-1xbit-app-di-ng__hero-title {
        font-size: 2.8em;
      }
      .page-1xbit-app-di-ng__section-title {
        font-size: 2.2em;
      }
      .page-1xbit-app-di-ng__cta-title {
        font-size: 2.5em;
      }
      .page-1xbit-app-di-ng__step-item {
        flex-direction: column;
      }
      .page-1xbit-app-di-ng__step-item:nth-child(even) {
        flex-direction: column;
      }
      .page-1xbit-app-di-ng__step-image-wrapper {
        max-width: 100%;
        margin-bottom: 20px;
      }
    }

    @media (max-width: 768px) {
      .page-1xbit-app-di-ng__section {
        padding: 40px 0;
      }
      .page-1xbit-app-di-ng__hero-section {
        padding: 80px 0;
        min-height: 450px;
      }
      .page-1xbit-app-di-ng__hero-title {
        font-size: 2.2em;
      }
      .page-1xbit-app-di-ng__hero-description {
        font-size: 1.1em;
      }
      .page-1xbit-app-di-ng__section-title {
        font-size: 1.8em;
        margin-bottom: 20px;
      }
      .page-1xbit-app-di-ng__section-subtitle {
        font-size: 1.2em;
      }
      .page-1xbit-app-di-ng__download-button {
        width: 100%;
        max-width: 300px;
        box-sizing: border-box;
      }
      .page-1xbit-app-di-ng__download-buttons {
        flex-direction: column;
        align-items: center;
      }

      /* List item responsive styles */
      .page-1xbit-app-di-ng__features-grid,
      .page-1xbit-app-di-ng__game-grid,
      .page-1xbit-app-di-ng__promo-card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .page-1xbit-app-di-ng__feature-item,
      .page-1xbit-app-di-ng__game-card,
      .page-1xbit-app-di-ng__promo-card,
      .page-1xbit-app-di-ng__step-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px !important;
      }
      .page-1xbit-app-di-ng__feature-description,
      .page-1xbit-app-di-ng__game-description,
      .page-1xbit-app-di-ng__promo-description,
      .page-1xbit-app-di-ng__step-description,
      .page-1xbit-app-di-ng__faq-answer {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-1xbit-app-di-ng__faq-list {
        padding: 0 10px;
      }
      .page-1xbit-app-di-ng__faq-question {
        padding: 12px 15px;
        font-size: 1.1em;
      }
      .page-1xbit-app-di-ng__faq-answer {
        padding: 0 15px;
      }
      .page-1xbit-app-di-ng__faq-item.active .page-1xbit-app-di-ng__faq-answer {
        padding: 15px !important;
      }
      .page-1xbit-app-di-ng__cta-title {
        font-size: 2em;
      }
      .page-1xbit-app-di-ng__cta-description {
        font-size: 1em;
      }
      .page-1xbit-app-di-ng__cta-button {
        padding: 15px 30px;
        font-size: 1.1em;
      }

      /* Image responsive styles */
      .page-1xbit-app-di-ng__step-image,
      .page-1xbit-app-di-ng__game-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-1xbit-app-di-ng__step-image-wrapper,
      .page-1xbit-app-di-ng__game-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-1xbit-app-di-ng__hero-title {
        font-size: 1.8em;
      }
      .page-1xbit-app-di-ng__hero-description {
        font-size: 0.95em;
      }
      .page-1xbit-app-di-ng__section-title {
        font-size: 1.6em;
      }
      .page-1xbit-app-di-ng__feature-title,
      .page-1xbit-app-di-ng__step-title,
      .page-1xbit-app-di-ng__game-title,
      .page-1xbit-app-di-ng__promo-title {
        font-size: 1.5em;
      }
    }