:root {
      --page-123b__primary-color: #e44d26; /* Cam đỏ */
      --page-123b__secondary-color: #f7931e; /* Cam */
      --page-123b__accent-color: #4CAF50; /* Xanh lá */
      --page-123b__text-color: #333;
      --page-123b__light-text-color: #f8f8f8;
      --page-123b__bg-color: #f0f2f5;
      --page-123b__dark-bg-color: #2c3e50; /* Xám xanh đậm */
      --page-123b__card-bg-color: #ffffff;
      --page-123b__border-color: #ddd;
    }

    .page-123b {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-123b__text-color);
      background-color: var(--page-123b__bg-color);
    }

    .page-123b__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-123b__hero-section {
      position: relative;
      width: 100%;
      height: 60vh; /* Điều chỉnh chiều cao cho phù hợp với di động */
      background-color: var(--page-123b__dark-bg-color);
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--page-123b__light-text-color);
      overflow: hidden;
      padding-top: 60px; /* Khoảng cách cho header cố định trên di động */
      box-sizing: border-box;
    }

    .page-123b__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
    }

    .page-123b__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.7));
      z-index: 2;
    }

    .page-123b__hero-content {
      position: relative;
      z-index: 3;
      max-width: 90%;
    }

    .page-123b__main-heading {
      font-size: 2.5em;
      margin-bottom: 15px;
      color: var(--page-123b__light-text-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-123b__sub-heading {
      font-size: 1.2em;
      margin-bottom: 30px;
      font-weight: normal;
    }

    .page-123b__promo-button {
      display: inline-block;
      background-color: var(--page-123b__primary-color);
      color: var(--page-123b__light-text-color);
      padding: 15px 30px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-123b__promo-button:hover {
      background-color: #c74120;
      transform: translateY(-2px);
    }

    .page-123b__section {
      padding: 40px 20px;
      background-color: var(--page-123b__card-bg-color);
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    }

    .page-123b__section--dark {
      background-color: var(--page-123b__dark-bg-color);
      color: var(--page-123b__light-text-color);
    }

    .page-123b__section-title {
      font-size: 2em;
      color: var(--page-123b__primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-123b__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: var(--page-123b__secondary-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .page-123b__section--dark .page-123b__section-title {
      color: var(--page-123b__light-text-color);
    }

    .page-123b__text-content {
      text-align: justify;
      margin-bottom: 20px;
    }

    .page-123b__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .page-123b__card {
      background-color: var(--page-123b__card-bg-color);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      padding: 25px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      border: 1px solid var(--page-123b__border-color);
    }

    .page-123b__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-123b__card-image {
      width: 100%;
      max-width: 300px;
      height: auto;
      border-radius: 6px;
      margin-bottom: 15px;
      object-fit: cover;
    }

    .page-123b__card-title {
      font-size: 1.3em;
      color: var(--page-123b__primary-color);
      margin-bottom: 10px;
    }

    .page-123b__card-description {
      font-size: 0.95em;
      color: var(--page-123b__text-color);
      flex-grow: 1;
    }

    .page-123b__list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: 1fr;
      gap: 15px;
    }

    .page-123b__list-item {
      background-color: var(--page-123b__card-bg-color);
      border-left: 5px solid var(--page-123b__secondary-color);
      padding: 15px 20px;
      border-radius: 5px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      font-size: 1.05em;
      box-sizing: border-box;
    }

    .page-123b__list-item strong {
      color: var(--page-123b__primary-color);
    }

    .page-123b__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-123b__accent-color);
      color: var(--page-123b__light-text-color);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      white-space: nowrap;
      border: none;
      cursor: pointer;
    }

    .page-123b__floating-button:hover {
      background-color: #449d48;
      transform: translateX(-50%) translateY(-3px);
    }

    /* FAQ Styles */
    .page-123b__faq-section {
      background-color: var(--page-123b__bg-color);
      padding: 40px 20px;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    }

    .page-123b__faq-item {
      background-color: var(--page-123b__card-bg-color);
      border: 1px solid var(--page-123b__border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-123b__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid var(--page-123b__border-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-123b__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-123b__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-123b__text-color);
      pointer-events: none; /* Prevent h3 from blocking click */
      flex-grow: 1;
    }

    .page-123b__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-123b__primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent span from blocking click */
      margin-left: 10px;
    }

    .page-123b__faq-item.active .page-123b__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-123b__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;
      color: var(--page-123b__text-color);
    }

    .page-123b__faq-item.active .page-123b__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-123b__hero-section {
        height: 50vh;
        padding-top: 50px; /* Adjusted for mobile header */
      }

      .page-123b__main-heading {
        font-size: 2em;
      }

      .page-123b__sub-heading {
        font-size: 1em;
      }

      .page-123b__promo-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-123b__section {
        padding: 30px 15px;
      }

      .page-123b__section-title {
        font-size: 1.7em;
        margin-bottom: 20px;
      }

      .page-123b__grid {
        grid-template-columns: 1fr;
      }

      .page-123b__card {
        padding: 20px;
      }

      .page-123b__card-image {
        max-width: 250px;
      }

      .page-123b__card-title {
        font-size: 1.2em;
      }

      .page-123b__list-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 15px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-123b__list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-123b__floating-button {
        padding: 12px 20px;
        font-size: 0.95em;
        bottom: 15px;
        width: auto;
        max-width: 90%;
      }

      .page-123b__faq-question {
        padding: 12px 15px;
      }

      .page-123b__faq-question h3 {
        font-size: 1em;
      }

      .page-123b__faq-answer {
        padding: 0 15px;
      }

      .page-123b__faq-item.active .page-123b__faq-answer {
        padding: 15px !important;
      }

      /* Image responsive */
      .page-123b img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-123b__card-image,
      .page-123b__game-image,
      .page-123b__hero-image {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
    }

    @media (min-width: 769px) {
      .page-123b__hero-section {
        height: 70vh;
        padding-top: 10px; /* Adjusted for desktop header */
      }
      .page-123b__main-heading {
        font-size: 3.5em;
      }
      .page-123b__sub-heading {
        font-size: 1.5em;
      }
      .page-123b__floating-button {
        display: none; /* Hide floating button on desktop */
      }
    }