:root {
      --page-13win__primary-color: #e44d26; /* Màu cam đỏ */
      --page-13win__secondary-color: #333;
      --page-13win__accent-color: #ffc107; /* Vàng */
      --page-13win__text-color: #333;
      --page-13win__light-text-color: #f8f8f8;
      --page-13win__background-light: #f4f4f4;
      --page-13win__background-dark: #222;
      --page-13win__border-color: #ddd;
    }

    .page-13win {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-13win__text-color);
      background-color: var(--page-13win__background-light);
    }

    /* Floating Login Button */
    .page-13win__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-13win__primary-color);
      color: var(--page-13win__light-text-color);
      padding: 15px 25px;
      border-radius: 50px;
      text-align: center;
      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: transform 0.3s ease, background-color 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      max-width: 90%; /* For smaller screens */
      white-space: nowrap; /* Prevent text wrapping */
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .page-13win__floating-button:hover {
      background-color: #e0431f;
      transform: translateY(-3px);
    }

    /* Hero Section */
    .page-13win__hero-section {
      position: relative;
      width: 100%;
      overflow: hidden;
      text-align: center;
      color: var(--page-13win__light-text-color);
      padding-top: 10px; /* Desktop */
      padding-bottom: 50px;
      background: linear-gradient(135deg, var(--page-13win__primary-color), #f96d00);
    }

    .page-13win__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      opacity: 0.2;
    }

    .page-13win__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-13win__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-13win__light-text-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-13win__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-13win__button {
      display: inline-block;
      background-color: var(--page-13win__accent-color);
      color: var(--page-13win__secondary-color);
      padding: 12px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-13win__button:hover {
      background-color: #ffda6a;
      transform: translateY(-2px);
    }

    /* Sections General */
    .page-13win__section {
      padding: 60px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-13win__section:nth-of-type(even) {
      background-color: var(--page-13win__background-light);
    }

    .page-13win__section-title {
      font-size: 2.2em;
      color: var(--page-13win__primary-color);
      margin-bottom: 40px;
      position: relative;
      display: inline-block;
    }

    .page-13win__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-13win__accent-color);
      border-radius: 2px;
    }

    .page-13win__text-content {
      max-width: 800px;
      margin: 0 auto 30px auto;
      font-size: 1.05em;
      color: var(--page-13win__secondary-color);
    }

    /* App Download Section */
    .page-13win__download-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-13win__step-item {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-13win__step-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-13win__step-icon {
      width: 100%;
      max-width: 300px; /* Example size, adjust as needed */
      height: auto;
      margin-bottom: 20px;
      border-radius: 8px;
      object-fit: cover;
    }
    .page-13win__step-icon-container {
      width: 100%;
      max-width: 300px;
      margin: 0 auto 20px auto;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-13win__step-number {
      font-size: 1.8em;
      color: var(--page-13win__primary-color);
      font-weight: bold;
      margin-bottom: 10px;
    }

    .page-13win__step-title {
      font-size: 1.3em;
      color: var(--page-13win__secondary-color);
      margin-bottom: 15px;
    }

    .page-13win__download-button-group {
      margin-top: 40px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }
    .page-13win__download-button {
      background-color: var(--page-13win__primary-color);
      color: var(--page-13win__light-text-color);
      padding: 15px 35px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .page-13win__download-button:hover {
      background-color: #e0431f;
      transform: translateY(-2px);
    }

    /* Game Categories Section */
    .page-13win__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-13win__game-card {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-13win__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-13win__game-image-container {
      width: 100%;
      height: 200px;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-13win__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-13win__game-card:hover .page-13win__game-image {
      transform: scale(1.05);
    }

    .page-13win__game-info {
      padding: 20px;
    }

    .page-13win__game-title {
      font-size: 1.4em;
      color: var(--page-13win__primary-color);
      margin-bottom: 10px;
    }

    .page-13win__game-description {
      font-size: 0.95em;
      color: var(--page-13win__secondary-color);
    }

    /* Promotions Section */
    .page-13win__promo-card {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      text-align: left;
      margin-bottom: 30px;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 15px;
    }

    .page-13win__promo-title {
      font-size: 1.8em;
      color: var(--page-13win__primary-color);
      margin-bottom: 10px;
    }

    .page-13win__promo-text {
      font-size: 1.1em;
      color: var(--page-13win__secondary-color);
      margin-bottom: 20px;
    }

    /* Why Choose Section */
    .page-13win__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-13win__feature-item {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      text-align: center;
    }

    .page-13win__feature-icon-container {
      width: 100%;
      max-width: 250px;
      margin: 0 auto 20px auto;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-13win__feature-icon {
      width: 100%;
      height: auto;
      max-width: 250px;
      border-radius: 8px;
      margin-bottom: 20px;
      object-fit: cover;
    }

    .page-13win__feature-title {
      font-size: 1.3em;
      color: var(--page-13win__primary-color);
      margin-bottom: 10px;
    }

    .page-13win__feature-description {
      font-size: 0.95em;
      color: var(--page-13win__secondary-color);
    }

    /* FAQ Section */
    .page-13win__faq-container {
      margin-top: 40px;
      text-align: left;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-13win__faq-item {
      background-color: #fff;
      border: 1px solid var(--page-13win__border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-13win__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-13win__background-light);
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid var(--page-13win__border-color);
      transition: background-color 0.3s ease;
    }

    .page-13win__faq-question:hover {
      background-color: #e9e9e9;
    }

    .page-13win__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-13win__secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-13win__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-13win__primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-13win__faq-item.active .page-13win__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-13win__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding */
      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-13win__text-color);
      background-color: #fff;
    }

    .page-13win__faq-item.active .page-13win__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px !important; /* Expanded padding */
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-13win__hero-section {
        padding-top: 10px; /* Mobile */
        padding-bottom: 30px;
      }

      .page-13win__hero-title {
        font-size: 2em;
      }

      .page-13win__hero-description {
        font-size: 1em;
      }

      .page-13win__section {
        padding: 40px 15px;
      }

      .page-13win__section-title {
        font-size: 1.8em;
      }

      .page-13win__download-steps,
      .page-13win__game-grid,
      .page-13win__features-grid {
        grid-template-columns: 1fr;
      }

      .page-13win__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-13win__download-button {
        width: 100%;
        justify-content: center;
      }

      .page-13win__game-image-container,
      .page-13win__feature-icon-container,
      .page-13win__step-icon-container {
        width: 100%;
        max-width: 100% !important;
        height: auto !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }

      .page-13win__game-image,
      .page-13win__feature-icon,
      .page-13win__step-icon {
        max-width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
      }

      .page-13win__faq-question {
        padding: 12px 15px;
      }

      .page-13win__faq-question h3 {
        font-size: 1em;
      }

      .page-13win__faq-answer {
        padding: 0 15px;
      }

      .page-13win__faq-item.active .page-13win__faq-answer {
        padding: 15px !important;
      }
    }