:root {
      --page-13win-primary-color: #e44d26; /* Màu đỏ cam rực rỡ */
      --page-13win-secondary-color: #f7b32b; /* Màu vàng cam bổ sung */
      --page-13win-dark-background: #1a1a1a; /* Nền tối */
      --page-13win-light-background: #f5f5f5; /* Nền sáng */
      --page-13win-text-color-light: #ffffff; /* Chữ sáng trên nền tối */
      --page-13win-text-color-dark: #333333; /* Chữ tối trên nền sáng */
      --page-13win-border-radius: 8px;
      --page-13win-padding-section: 40px 20px;
      --page-13win-padding-mobile-section: 20px 15px;
    }

    .page-13win {
      font-family: 'Arial', sans-serif;
      color: var(--page-13win-text-color-dark);
      background-color: var(--page-13win-light-background);
      line-height: 1.6;
      overflow-x: hidden; /* Ngăn chặn cuộn ngang */
    }

    /* Khoảng cách cho tiêu đề cố định */
    .page-13win__hero-section {
      padding-top: 10px; /* Một khoảng đệm nhỏ, dựa vào padding body từ shared.css */
    }

    .page-13win__floating-buttons {
      position: fixed;
      top: 10px; /* Điều chỉnh dựa trên chiều cao header thực tế từ shared.css */
      right: 15px;
      left: 15px;
      display: flex;
      justify-content: center;
      gap: 10px;
      z-index: 1000;
      padding: 10px 0;
      background: linear-gradient(to right, rgba(26,26,26,0.9), rgba(26,26,26,0.9));
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      max-width: 300px; /* Giới hạn chiều rộng cho di động */
      margin: 0 auto; /* Căn giữa các nút nổi */
    }
    @media (min-width: 769px) {
        .page-13win__floating-buttons {
            top: 20px; /* Điều chỉnh cho máy tính để bàn */
            right: 20px;
            left: auto; /* Để nút ở bên phải */
            max-width: 300px;
        }
    }

    .page-13win__button {
      display: inline-block;
      padding: 10px 20px;
      border-radius: 50px;
      font-weight: bold;
      text-align: center;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      cursor: pointer;
      border: none;
      font-size: 16px;
    }

    .page-13win__button--primary {
      background-color: var(--page-13win-primary-color);
      color: var(--page-13win-text-color-light);
      box-shadow: 0 4px 10px rgba(228, 77, 38, 0.4);
    }

    .page-13win__button--primary:hover {
      background-color: #c93b1d;
      transform: translateY(-2px);
    }

    .page-13win__button--secondary {
      background-color: var(--page-13win-secondary-color);
      color: var(--page-13win-text-color-dark);
      box-shadow: 0 4px 10px rgba(247, 179, 43, 0.4);
    }

    .page-13win__button--secondary:hover {
      background-color: #d19a26;
      transform: translateY(-2px);
    }

    .page-13win__section {
      padding: var(--page-13win-padding-section);
      margin-bottom: 20px;
      background-color: var(--page-13win-light-background);
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      text-align: center;
    }

    .page-13win__section--dark {
      background-color: var(--page-13win-dark-background);
      color: var(--page-13win-text-color-light);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-13win__section-title {
      font-size: 36px;
      color: var(--page-13win-primary-color);
      margin-bottom: 25px;
      font-weight: bold;
      text-transform: uppercase;
    }
    .page-13win__section--dark .page-13win__section-title {
        color: var(--page-13win-secondary-color);
    }

    .page-13win__section-subtitle {
      font-size: 20px;
      color: var(--page-13win-text-color-dark);
      margin-bottom: 30px;
    }
    .page-13win__section--dark .page-13win__section-subtitle {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__text {
      font-size: 18px;
      margin-bottom: 15px;
      color: var(--page-13win-text-color-dark);
    }
    .page-13win__section--dark .page-13win__text {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin: 20px auto;
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      text-align: center;
    }

    .page-13win__image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: var(--page-13win-border-radius);
    }

    .page-13win__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-13win__game-card {
      background-color: #ffffff;
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      padding: 20px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      box-sizing: border-box;
    }
    .page-13win__section--dark .page-13win__game-card {
        background-color: #2a2a2a;
        color: var(--page-13win-text-color-light);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-13win__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }
    .page-13win__section--dark .page-13win__game-card:hover {
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    }

    .page-13win__game-card-image {
      max-width: 100%;
      height: auto;
      border-radius: var(--page-13win-border-radius);
      margin-bottom: 15px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-13win__game-card-title {
      font-size: 22px;
      color: var(--page-13win-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }
    .page-13win__section--dark .page-13win__game-card-title {
        color: var(--page-13win-secondary-color);
    }

    .page-13win__game-card-description {
      font-size: 16px;
      color: var(--page-13win-text-color-dark);
      flex-grow: 1;
    }
    .page-13win__section--dark .page-13win__game-card-description {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__promotion-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .page-13win__promotion-item {
      background-color: #ffffff;
      padding: 20px;
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      text-align: left;
      display: flex;
      align-items: flex-start;
      gap: 15px;
      box-sizing: border-box;
    }
    .page-13win__section--dark .page-13win__promotion-item {
        background-color: #2a2a2a;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-13win__promotion-icon {
      font-size: 30px;
      color: var(--page-13win-primary-color);
      flex-shrink: 0;
    }
    .page-13win__section--dark .page-13win__promotion-icon {
        color: var(--page-13win-secondary-color);
    }

    .page-13win__promotion-content {
      flex-grow: 1;
    }

    .page-13win__promotion-title {
      font-size: 20px;
      color: var(--page-13win-primary-color);
      margin-bottom: 5px;
      font-weight: bold;
    }
    .page-13win__section--dark .page-13win__promotion-title {
        color: var(--page-13win-secondary-color);
    }

    .page-13win__promotion-description {
      font-size: 16px;
      color: var(--page-13win-text-color-dark);
    }
    .page-13win__section--dark .page-13win__promotion-description {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__payment-methods {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-13win__payment-logo {
      flex: 1 1 calc(33% - 20px); /* 3 items per row on desktop */
      max-width: calc(33% - 20px);
      background-color: #ffffff;
      padding: 15px;
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      box-sizing: border-box;
    }
    .page-13win__section--dark .page-13win__payment-logo {
        background-color: #2a2a2a;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }
    .page-13win__payment-logo .page-13win__image {
        margin-bottom: 10px;
    }
    .page-13win__payment-logo .page-13win__text {
        font-weight: bold;
        margin-bottom: 0;
    }

    .page-13win__faq-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-13win__faq-item {
      background-color: #ffffff;
      margin-bottom: 10px;
      border-radius: var(--page-13win-border-radius);
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      box-sizing: border-box;
    }
    .page-13win__section--dark .page-13win__faq-item {
        background-color: #2a2a2a;
        box-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
    }

    .page-13win__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f0f0f0;
      border-bottom: 1px solid #e0e0e0;
      transition: background-color 0.3s ease;
      user-select: none;
    }
    .page-13win__section--dark .page-13win__faq-question {
        background-color: #333333;
        border-bottom: 1px solid #444444;
    }

    .page-13win__faq-question:hover {
      background-color: #e5e5e5;
    }
    .page-13win__section--dark .page-13win__faq-question:hover {
        background-color: #444444;
    }

    .page-13win__faq-question h3 {
      margin: 0;
      font-size: 18px;
      color: var(--page-13win-text-color-dark);
      pointer-events: none; /* Ngăn chặn việc chọn văn bản làm gián đoạn sự kiện click */
    }
    .page-13win__section--dark .page-13win__faq-question h3 {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__faq-toggle {
      font-size: 24px;
      font-weight: bold;
      color: var(--page-13win-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn icon làm gián đoạn sự kiện click */
    }
    .page-13win__section--dark .page-13win__faq-toggle {
        color: var(--page-13win-secondary-color);
    }

    .page-13win__faq-item.active .page-13win__faq-toggle {
      transform: rotate(45deg); /* Thay đổi + thành X hoặc tương tự */
    }

    .page-13win__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 0.3s ease;
      color: var(--page-13win-text-color-dark);
      font-size: 16px;
      opacity: 0;
    }
    .page-13win__section--dark .page-13win__faq-answer {
        color: var(--page-13win-text-color-light);
    }

    .page-13win__faq-item.active .page-13win__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px !important;
      opacity: 1;
    }

    .page-13win__contact-info {
        margin-top: 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    /* Mobile Responsiveness */
    @media (max-width: 768px) {
      .page-13win__section {
        padding: var(--page-13win-padding-mobile-section);
      }

      .page-13win__section-title {
        font-size: 28px;
        margin-bottom: 20px;
      }

      .page-13win__section-subtitle {
        font-size: 18px;
        margin-bottom: 25px;
      }

      .page-13win__text {
        font-size: 16px;
      }

      .page-13win__game-grid {
        grid-template-columns: 1fr;
        gap: 15px;
      }

      .page-13win__game-card {
        padding: 15px;
      }

      .page-13win__game-card-title {
        font-size: 20px;
      }

      .page-13win__game-card-description {
        font-size: 15px;
      }

      .page-13win__promotion-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 15px;
      }

      .page-13win__promotion-icon {
        margin-bottom: 10px;
      }

      .page-13win__promotion-title {
        font-size: 18px;
      }

      .page-13win__promotion-description {
        font-size: 15px;
      }

      .page-13win__payment-logo {
        flex: 1 1 calc(50% - 20px); /* 2 mục mỗi hàng trên tablet */
        max-width: calc(50% - 20px);
      }

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

      .page-13win__faq-question h3 {
        font-size: 16px;
      }

      .page-13win__faq-answer {
        padding: 0 15px;
        font-size: 15px;
      }
      .page-13win__faq-item.active .page-13win__faq-answer {
        padding: 15px !important;
      }

      /* Hình ảnh phản hồi trên di động */
      .page-13win__image-container {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 5px; /* Điều chỉnh padding để ngăn nội dung chạm vào cạnh */
      }
      .page-13win__image {
        max-width: 100% !important;
        height: auto !important;
      }

      /* Phản hồi danh sách mục trên di động */
      .page-13win__promotion-list .page-13win__promotion-item,
      .page-13win__game-grid .page-13win__game-card,
      .page-13win__faq-list .page-13win__faq-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
      .page-13win__promotion-list .page-13win__promotion-item {
        padding: 15px !important; /* Điều chỉnh padding */
      }
      .page-13win__game-grid .page-13win__game-card {
        padding: 15px !important; /* Điều chỉnh padding */
      }
    }

    @media (max-width: 480px) {
      .page-13win__payment-logo {
        flex: 1 1 100%; /* 1 mục mỗi hàng trên di động */
        max-width: 100%;
      }
    }