/* Tổng quan */
    :root {
      --page-789betapp-primary-color: #e44d26; /* Màu cam đỏ */
      --page-789betapp-secondary-color: #333;
      --page-789betapp-text-color: #444;
      --page-789betapp-light-bg: #f9f9f9;
      --page-789betapp-dark-bg: #2a2a2a;
      --page-789betapp-white: #ffffff;
      --page-789betapp-border-color: #eee;
    }

    .page-789betapp {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-789betapp-text-color);
      background-color: var(--page-789betapp-light-bg);
      overflow-x: hidden;
    }

    .page-789betapp__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    /* Tiêu đề chính */
    .page-789betapp__heading-primary {
      font-size: 2.5em;
      color: var(--page-789betapp-primary-color);
      text-align: center;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-789betapp__heading-secondary {
      font-size: 2em;
      color: var(--page-789betapp-secondary-color);
      text-align: center;
      margin-top: 40px;
      margin-bottom: 25px;
      position: relative;
      padding-bottom: 10px;
    }
    .page-789betapp__heading-secondary::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 3px;
      background-color: var(--page-789betapp-primary-color);
    }

    .page-789betapp__heading-tertiary {
      font-size: 1.5em;
      color: var(--page-789betapp-primary-color);
      margin-top: 30px;
      margin-bottom: 15px;
      font-weight: bold;
    }

    /* Nút chung */
    .page-789betapp__button {
      display: inline-block;
      background-color: var(--page-789betapp-primary-color);
      color: var(--page-789betapp-white);
      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;
      text-align: center;
    }

    .page-789betapp__button:hover {
      background-color: #d43d1a;
      transform: translateY(-2px);
    }

    /* Hero Section */
    .page-789betapp__hero-section {
      position: relative;
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6));
      color: var(--page-789betapp-white);
      text-align: center;
      padding: 10px 20px 80px; /* Thêm padding-top 10px cho hero section */
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 450px;
    }

    .page-789betapp__hero-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('[GALLERY:banner:789betapp_hero,mobile_app,promotion]');
      background-size: cover;
      background-position: center;
      z-index: -1;
      filter: brightness(0.7);
    }

    .page-789betapp__hero-content {
      position: relative;
      z-index: 1;
      max-width: 800px;
    }

    .page-789betapp__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: var(--page-789betapp-white);
      font-weight: bold;
    }

    .page-789betapp__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #f0f0f0;
    }

    .page-789betapp__hero-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-789betapp__hero-buttons .page-789betapp__button {
      background-color: #4CAF50; /* Màu xanh lá cho nút tải */
      font-size: 1.1em;
      padding: 15px 30px;
      border-radius: 50px;
    }
    .page-789betapp__hero-buttons .page-789betapp__button:hover {
      background-color: #45a049;
    }

    /* Giới thiệu */
    .page-789betapp__introduction-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-white);
      text-align: center;
    }
    .page-789betapp__introduction-text {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Hướng dẫn tải app */
    .page-789betapp__download-guide-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-light-bg);
    }

    .page-789betapp__download-platforms {
      display: flex;
      justify-content: center;
      gap: 40px;
      margin-top: 40px;
      flex-wrap: wrap;
    }

    .page-789betapp__platform-card {
      background-color: var(--page-789betapp-white);
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
      padding: 30px;
      text-align: center;
      flex: 1;
      min-width: 300px;
      max-width: 45%;
      box-sizing: border-box;
      transition: transform 0.3s ease;
    }

    .page-789betapp__platform-card:hover {
      transform: translateY(-5px);
    }

    .page-789betapp__platform-icon {
      width: 100px;
      height: auto;
      margin-bottom: 20px;
    }

    .page-789betapp__platform-title {
      font-size: 1.8em;
      color: var(--page-789betapp-primary-color);
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-789betapp__download-steps {
      list-style: none;
      padding: 0;
      text-align: left;
    }

    .page-789betapp__download-step-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 15px;
    }

    .page-789betapp__step-number {
      background-color: var(--page-789betapp-primary-color);
      color: var(--page-789betapp-white);
      border-radius: 50%;
      width: 30px;
      height: 30px;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      margin-right: 15px;
      flex-shrink: 0;
    }

    .page-789betapp__step-text {
      font-size: 1.05em;
      color: var(--page-789betapp-text-color);
    }

    .page-789betapp__download-image {
      width: 100%;
      max-width: 400px;
      height: auto;
      border-radius: 8px;
      margin-top: 20px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    /* Lợi ích khi tải app */
    .page-789betapp__benefits-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-white);
    }

    .page-789betapp__benefits-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-789betapp__benefit-item {
      background-color: var(--page-789betapp-light-bg);
      border-radius: 12px;
      padding: 30px;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease;
    }

    .page-789betapp__benefit-item:hover {
      transform: translateY(-5px);
    }

    .page-789betapp__benefit-icon {
      width: 80px;
      height: auto;
      margin-bottom: 15px;
    }

    .page-789betapp__benefit-title {
      font-size: 1.3em;
      color: var(--page-789betapp-secondary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-789betapp__benefit-description {
      color: var(--page-789betapp-text-color);
    }

    /* Các trò chơi nổi bật */
    .page-789betapp__games-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-light-bg);
    }

    .page-789betapp__games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-789betapp__game-card {
      background-color: var(--page-789betapp-white);
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-789betapp__game-card:hover {
      transform: translateY(-5px);
    }

    .page-789betapp__game-image {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

    .page-789betapp__game-content {
      padding: 20px;
    }

    .page-789betapp__game-title {
      font-size: 1.2em;
      color: var(--page-789betapp-secondary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-789betapp__game-description {
      font-size: 0.95em;
      color: var(--page-789betapp-text-color);
    }

    /* Khuyến mãi */
    .page-789betapp__promotion-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-white);
      text-align: center;
    }

    .page-789betapp__promotion-card {
      background: linear-gradient(135deg, #f9f9f9, #f0f0f0);
      border-radius: 15px;
      padding: 40px;
      max-width: 800px;
      margin: 40px auto 0;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
      border: 1px solid var(--page-789betapp-primary-color);
    }

    .page-789betapp__promotion-title {
      font-size: 2em;
      color: var(--page-789betapp-primary-color);
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-789betapp__promotion-text {
      font-size: 1.1em;
      margin-bottom: 30px;
      color: var(--page-789betapp-secondary-color);
    }

    /* FAQ Section */
    .page-789betapp__faq-section {
      padding: 60px 0;
      background-color: var(--page-789betapp-light-bg);
    }

    .page-789betapp__faq-list {
      max-width: 900px;
      margin: 40px auto 0;
    }

    .page-789betapp__faq-item {
      background-color: var(--page-789betapp-white);
      border: 1px solid var(--page-789betapp-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-789betapp__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #f0f0f0;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
      font-weight: bold;
      color: var(--page-789betapp-secondary-color);
    }

    .page-789betapp__faq-question:hover {
      background-color: #e5e5e5;
    }

    .page-789betapp__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      flex-grow: 1;
      text-align: left;
      color: var(--page-789betapp-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-789betapp__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-789betapp-primary-color);
      margin-left: 15px;
      width: 20px;
      text-align: center;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-789betapp__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;
      background-color: var(--page-789betapp-white);
      color: var(--page-789betapp-text-color);
    }

    .page-789betapp__faq-answer p {
      margin: 0;
      padding-bottom: 15px;
      padding-top: 5px; /* Adjust padding for better look when expanded */
    }

    .page-789betapp__faq-item.active .page-789betapp__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px 20px !important;
      opacity: 1;
    }

    /* Floating Promotion Button */
    .page-789betapp__floating-promo-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #ff0000; /* Màu đỏ nổi bật */
      color: var(--page-789betapp-white);
      padding: 15px 25px;
      border-radius: 50px;
      text-align: center;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      animation: page-789betapp-pulse 2s infinite;
      text-decoration: none;
      font-size: 1.1em;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .page-789betapp__floating-promo-button:hover {
      background-color: #cc0000;
      animation: none;
    }

    @keyframes page-789betapp-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* Hình ảnh chung */
    .page-789betapp img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
      margin-left: auto;
      margin-right: auto;
    }
    .page-789betapp__image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 15px;
    }


    /* Responsive */
    @media (max-width: 768px) {
      .page-789betapp__container {
        padding: 15px;
      }

      .page-789betapp__hero-section {
        padding: 10px 15px 60px; /* Adjust padding for mobile hero */
        min-height: 380px;
      }

      .page-789betapp__hero-title {
        font-size: 2.2em;
      }

      .page-789betapp__hero-subtitle {
        font-size: 1em;
      }

      .page-789betapp__hero-buttons {
        flex-direction: column;
        gap: 15px;
      }

      .page-789betapp__hero-buttons .page-789betapp__button {
        width: 80%;
        margin: 0 auto;
      }

      .page-789betapp__heading-primary {
        font-size: 2em;
      }

      .page-789betapp__heading-secondary {
        font-size: 1.6em;
      }

      .page-789betapp__heading-tertiary {
        font-size: 1.3em;
      }

      .page-789betapp__download-platforms {
        flex-direction: column;
        align-items: center;
      }

      .page-789betapp__platform-card {
        max-width: 90%;
        min-width: unset;
      }

      .page-789betapp__benefits-grid {
        grid-template-columns: 1fr;
      }

      .page-789betapp__games-grid {
        grid-template-columns: 1fr;
      }

      .page-789betapp__promotion-card {
        padding: 25px;
      }

      .page-789betapp__promotion-title {
        font-size: 1.6em;
      }

      .page-789betapp__promotion-text {
        font-size: 1em;
      }

      .page-789betapp__faq-question {
        padding: 12px 15px;
      }
      .page-789betapp__faq-question h3 {
        font-size: 1em;
      }
      .page-789betapp__faq-answer {
        padding: 0 15px;
      }
      .page-789betapp__faq-item.active .page-789betapp__faq-answer {
        padding: 15px 15px !important;
      }

      .page-789betapp__floating-promo-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }

      /* Image responsive optimization */
      .page-789betapp img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-789betapp__image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }