:root {
      --page-fb68-primary-color: #e44d26; /* Màu cam đỏ nổi bật */
      --page-fb68-secondary-color: #007bff; /* Màu xanh dương */
      --page-fb68-text-light: #f0f0f0;
      --page-fb68-text-dark: #333;
      --page-fb68-background-dark: #000;
      --page-fb68-card-background: #1a1a1a;
      --page-fb68-border-color: #333;
    }

    .page-fb68 {
      background-color: var(--page-fb68-background-dark);
      color: var(--page-fb68-text-light);
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      padding-top: 120px; /* Thêm khoảng trống cho header cố định */
    }

    @media (max-width: 768px) {
      .page-fb68 {
        padding-top: 100px; /* Khoảng trống cho header cố định trên di động */
      }
    }

    .page-fb68__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-fb68__section {
      padding: 40px 0;
      text-align: center;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--page-fb68-border-color);
    }

    .page-fb68__section:last-of-type {
      border-bottom: none;
    }

    .page-fb68__heading {
      color: var(--page-fb68-primary-color);
      margin-bottom: 30px;
      font-size: 2.5em;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .page-fb68__sub-heading {
      color: var(--page-fb68-secondary-color);
      margin-bottom: 20px;
      font-size: 1.8em;
    }

    .page-fb68__text {
      font-size: 1.1em;
      margin-bottom: 15px;
      color: var(--page-fb68-text-light);
    }

    .page-fb68__button {
      display: inline-block;
      background-color: var(--page-fb68-primary-color);
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-size: 1.1em;
      border: none;
      cursor: pointer;
    }

    .page-fb68__button:hover {
      background-color: #ff6a00;
      transform: translateY(-2px);
    }

    /* Hero Section */
    .page-fb68__hero-section {
      background-color: var(--page-fb68-background-dark);
      padding: 0; /* Hero image will define its own height */
      position: relative;
      overflow: hidden;
      text-align: center;
    }

    .page-fb68__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-fb68__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: contain; /* Đảm bảo ảnh không bị kéo dãn */
      margin: 0 auto;
    }

    @media (max-width: 768px) {
      .page-fb68__hero-image {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    .page-fb68__hero-content {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      color: #fff;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      z-index: 10;
      width: 90%;
      max-width: 800px;
    }

    .page-fb68__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: #fff;
    }

    .page-fb68__hero-slogan {
      font-size: 1.8em;
      margin-bottom: 30px;
      color: #f0f0f0;
    }

    .page-fb68__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 100;
    }

    .page-fb68__floating-button {
      background-color: var(--page-fb68-primary-color);
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
      white-space: nowrap;
    }

    .page-fb68__floating-button:hover {
      background-color: #ff6a00;
      transform: translateX(-50%) translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    }

    @media (max-width: 768px) {
      .page-fb68__hero-title {
        font-size: 2.2em;
      }
      .page-fb68__hero-slogan {
        font-size: 1.2em;
      }
      .page-fb68__floating-buttons {
        bottom: 15px;
        gap: 10px;
      }
      .page-fb68__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-fb68__floating-button:hover {
        transform: translateX(-50%) translateY(-3px);
      }
    }

    /* Game Categories */
    .page-fb68__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-fb68__game-card {
      background-color: var(--page-fb68-card-background);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
    }

    .page-fb68__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .page-fb68__game-card-link {
      text-decoration: none;
      color: inherit;
      display: block;
      flex-grow: 1;
    }

    .page-fb68__game-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;
      background-color: #222;
    }

    .page-fb68__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    @media (max-width: 768px) {
      .page-fb68__game-image {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    .page-fb68__game-title {
      font-size: 1.5em;
      color: var(--page-fb68-primary-color);
      padding: 15px 10px;
      background-color: #2a2a2a;
      margin-top: auto; /* Push to bottom */
    }

    /* App Download Section */
    .page-fb68__download-content {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 30px;
      margin-top: 30px;
    }

    .page-fb68__download-qr-wrapper {
      width: 250px;
      height: 250px;
      background-color: #fff;
      padding: 15px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-fb68__download-qr {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    @media (max-width: 768px) {
      .page-fb68__download-qr {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    .page-fb68__download-options {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }

    .page-fb68__download-button {
      background-color: var(--page-fb68-secondary-color);
      padding: 12px 25px;
      border-radius: 5px;
      font-size: 1.1em;
    }

    .page-fb68__download-button:hover {
      background-color: #0056b3;
    }

    /* Game Providers */
    .page-fb68__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      margin-top: 40px;
      justify-items: center;
    }

    .page-fb68__provider-logo-wrapper {
      width: 100%;
      max-width: 150px; /* Smaller max-width for logos */
      height: 80px; /* Fixed height for consistency */
      overflow: hidden;
      box-sizing: border-box;
      background-color: var(--page-fb68-card-background);
      border-radius: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 5px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
    }

    .page-fb68__provider-logo-wrapper:hover {
      transform: translateY(-3px);
    }

    .page-fb68__provider-logo {
      max-width: 100%;
      max-height: 100%;
      object-fit: contain;
      display: block;
    }

    @media (max-width: 768px) {
      .page-fb68__provider-logo {
        max-width: 100% !important;
        height: auto !important;
      }
    }

    /* FAQ Section */
    .page-fb68__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-fb68__faq-item {
      background-color: var(--page-fb68-card-background);
      border: 1px solid var(--page-fb68-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .page-fb68__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      user-select: none;
      background-color: #2a2a2a;
      transition: background-color 0.3s ease;
    }

    .page-fb68__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-fb68__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-fb68-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-fb68__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-fb68-secondary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-fb68__faq-item.active .page-fb68__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or '-' */
    }

    .page-fb68__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding is 0 */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--page-fb68-text-light);
      font-size: 1em;
    }

    .page-fb68__faq-item.active .page-fb68__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to show content */
      padding: 20px !important; /* Apply padding when active */
      opacity: 1;
    }

    @media (max-width: 768px) {
      .page-fb68__faq-question {
        padding: 12px 15px;
      }
      .page-fb68__faq-question h3 {
        font-size: 1.1em;
      }
      .page-fb68__faq-answer {
        padding: 0 15px;
      }
      .page-fb68__faq-item.active .page-fb68__faq-answer {
        padding: 15px !important;
      }
    }

    /* Promotions Section */
    .page-fb68__promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-fb68__promo-card {
      background-color: var(--page-fb68-card-background);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: left;
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-fb68__promo-card-title {
      font-size: 1.6em;
      color: var(--page-fb68-primary-color);
      margin-bottom: 15px;
    }

    .page-fb68__promo-card-description {
      font-size: 1em;
      color: var(--page-fb68-text-light);
      margin-bottom: 20px;
      flex-grow: 1;
    }

    /* General responsive adjustments */
    @media (max-width: 768px) {
      .page-fb68__heading {
        font-size: 2em;
      }
      .page-fb68__sub-heading {
        font-size: 1.5em;
      }
      .page-fb68__section {
        padding: 30px 0;
      }
      .page-fb68__container {
        padding: 15px;
      }
      .page-fb68__game-grid,
      .page-fb68__providers-grid,
      .page-fb68__promo-grid {
        grid-template-columns: 1fr;
      }
    }