:root {
      --page-mm99-primary-color: #e44d26; /* Một màu đỏ cam rực rỡ, tràn đầy năng lượng */
      --page-mm99-secondary-color: #333; /* Xám đậm cho văn bản */
      --page-mm99-accent-color: #ffb300; /* Vàng sáng cho các điểm nhấn */
      --page-mm99-background-light: #f5f5f5; /* Nền sáng */
      --page-mm99-background-dark: #222; /* Nền tối cho các phần tương phản */
      --page-mm99-text-light: #f5f5f5;
      --page-mm99-text-dark: #333;
      --page-mm99-border-radius: 8px;
      --page-mm99-padding-mobile: 15px;
      --page-mm99-padding-desktop: 25px;
      --page-mm99-max-width: 1200px;
    }

    .page-mm99 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-mm99-text-dark);
      background-color: var(--page-mm99-background-light);
    }

    .page-mm99-container {
      max-width: var(--page-mm99-max-width);
      margin: 0 auto;
      padding: var(--page-mm99-padding-mobile);
    }

    @media (min-width: 768px) {
      .page-mm99-container {
        padding: var(--page-mm99-padding-desktop);
      }
    }

    .page-mm99-section {
      padding: 40px var(--page-mm99-padding-mobile);
      margin-bottom: 20px;
      background-color: #fff;
      border-radius: var(--page-mm99-border-radius);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    }

    .page-mm99-section.dark-bg {
      background-color: var(--page-mm99-background-dark);
      color: var(--page-mm99-text-light);
    }

    .page-mm99-section.dark-bg h2,
    .page-mm99-section.dark-bg h3,
    .page-mm99-section.dark-bg p,
    .page-mm99-section.dark-bg li,
    .page-mm99-section.dark-bg a {
      color: var(--page-mm99-text-light);
    }

    .page-mm99-section.dark-bg a:hover {
      color: var(--page-mm99-accent-color);
    }

    .page-mm99-hero {
      position: relative;
      text-align: center;
      padding: 60px var(--page-mm99-padding-mobile) 40px;
      background: linear-gradient(135deg, var(--page-mm99-primary-color), #c23b19);
      color: #fff;
      border-radius: var(--page-mm99-border-radius);
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-mm99-hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.2;
      z-index: 0;
    }

    .page-mm99-hero-content {
      position: relative;
      z-index: 1;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-mm99-hero h1 {
      font-size: 2.2em;
      margin-bottom: 15px;
      color: #fff;
      line-height: 1.2;
    }

    .page-mm99-hero p {
      font-size: 1.1em;
      margin-bottom: 30px;
      color: rgba(255, 255, 255, 0.9);
    }

    .page-mm99-btn {
      display: inline-block;
      background-color: var(--page-mm99-accent-color);
      color: var(--page-mm99-text-dark);
      padding: 12px 25px;
      border-radius: var(--page-mm99-border-radius);
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .page-mm99-btn:hover {
      background-color: #ffc107;
      transform: translateY(-2px);
    }

    .page-mm99-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      width: calc(100% - 40px);
      max-width: 350px;
      text-align: center;
    }

    .page-mm99-floating-btn .page-mm99-btn {
      width: 100%;
      font-size: 1.1em;
      padding: 15px 20px;
    }

    h2 {
      font-size: 1.8em;
      color: var(--page-mm99-primary-color);
      margin-bottom: 20px;
      text-align: center;
    }

    h3 {
      font-size: 1.4em;
      color: var(--page-mm99-secondary-color);
      margin-top: 25px;
      margin-bottom: 15px;
    }

    p {
      margin-bottom: 15px;
    }

    .page-mm99-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-mm99-grid-item {
      background-color: #fff;
      border-radius: var(--page-mm99-border-radius);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      text-align: center;
      padding: 20px;
      transition: transform 0.3s ease;
    }

    .page-mm99-grid-item:hover {
      transform: translateY(-5px);
    }

    .page-mm99-grid-item img {
      max-width: 80px;
      height: auto;
      margin-bottom: 15px;
      border-radius: 50%;
    }

    .page-mm99-grid-item h4 {
      font-size: 1.1em;
      color: var(--page-mm99-primary-color);
      margin-bottom: 10px;
    }

    .page-mm99-grid-item p {
      font-size: 0.9em;
      color: var(--page-mm99-secondary-color);
    }

    .page-mm99-game-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .page-mm99-game-card {
      background-color: var(--page-mm99-background-light);
      border-radius: var(--page-mm99-border-radius);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-mm99-game-card:hover {
      transform: translateY(-5px);
    }

    .page-mm99-game-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      border-bottom: 1px solid #eee;
    }

    .page-mm99-game-card-content {
      padding: 15px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-mm99-game-card h4 {
      font-size: 1.1em;
      color: var(--page-mm99-primary-color);
      margin-bottom: 10px;
    }

    .page-mm99-game-card p {
      font-size: 0.85em;
      color: var(--page-mm99-secondary-color);
      margin-bottom: 15px;
      flex-grow: 1; /* Allow paragraph to take available space */
    }

    .page-mm99-game-card .page-mm99-btn {
      padding: 8px 15px;
      font-size: 0.9em;
      margin-top: auto; /* Push button to the bottom */
    }

    .page-mm99-info-list {
      list-style: none;
      padding: 0;
    }

    .page-mm99-info-list li {
      background-color: #fcfcfc;
      border: 1px solid #eee;
      border-radius: var(--page-mm99-border-radius);
      padding: 15px;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 15px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }

    .page-mm99-info-list li:last-child {
      margin-bottom: 0;
    }

    .page-mm99-info-list li img {
      width: 40px;
      height: 40px;
      object-fit: contain;
    }

    .page-mm99-info-list li strong {
      color: var(--page-mm99-primary-color);
    }

    .page-mm99-faq-item {
      margin-bottom: 10px;
      border: 1px solid #eee;
      border-radius: var(--page-mm99-border-radius);
      overflow: hidden;
    }

    .page-mm99-faq-question {
      background-color: #f9f9f9;
      padding: 15px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
      color: var(--page-mm99-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-mm99-faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-mm99-faq-question::after {
      content: '+';
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }

    .page-mm99-faq-question.active::after {
      content: '-';
      transform: rotate(180deg);
    }

    .page-mm99-faq-answer {
      padding: 0 15px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      background-color: #fff;
    }

    .page-mm99-faq-answer p {
      padding-top: 15px;
      padding-bottom: 15px;
      margin-bottom: 0;
    }

    .page-mm99-faq-question.active + .page-mm99-faq-answer {
      max-height: 200px; /* Điều chỉnh khi cần cho nội dung */
      padding-top: 0;
      padding-bottom: 0;
    }

    .page-mm99-ad-float {
      position: fixed;
      right: 15px;
      bottom: 100px; /* Điều chỉnh để nằm trên nút đăng nhập nổi */
      z-index: 999;
      background-color: var(--page-mm99-primary-color);
      color: var(--page-mm99-text-light);
      padding: 10px 15px;
      border-radius: var(--page-mm99-border-radius);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      text-align: center;
      font-size: 0.9em;
      line-height: 1.3;
      cursor: pointer;
      animation: page-mm99-pulse 1.5s infinite;
    }

    .page-mm99-ad-float strong {
      display: block;
      font-size: 1.1em;
      margin-bottom: 5px;
    }

    .page-mm99-ad-float:hover {
      background-color: #c23b19;
    }

    @keyframes page-mm99-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    @media (max-width: 480px) {
      .page-mm99-hero h1 {
        font-size: 1.8em;
      }
      .page-mm99-hero p {
        font-size: 1em;
      }
      .page-mm99-floating-btn {
        width: calc(100% - 30px); /* Giảm padding trên màn hình rất nhỏ */
      }
      .page-mm99-ad-float {
        right: 10px;
        bottom: 80px;
        padding: 8px 12px;
        font-size: 0.8em;
      }
      .page-mm99-ad-float strong {
        font-size: 1em;
      }
    }

    /* Khả năng tiếp cận: Đảm bảo trạng thái focus */
    a:focus, button:focus {
      outline: 2px solid var(--page-mm99-accent-color);
      outline-offset: 2px;
    }