/* CSS cho trang 13win 20 */
    .page-13win-20 {
      font-family: 'Arial', sans-serif;
      color: #e0e0e0;
      background-color: #1a1a1a;
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-13win-20__section-title {
      font-size: 2.5em;
      color: #fdd835; /* Yellow accent */
      text-align: center;
      margin-bottom: 30px;
      padding-top: 40px;
      text-transform: uppercase;
      letter-spacing: 1px;
      position: relative;
    }

    .page-13win-20__section-title::after {
      content: '';
      display: block;
      width: 80px;
      height: 4px;
      background-color: #fdd835;
      margin: 10px auto 0 auto;
      border-radius: 2px;
    }

    .page-13win-20__text-content {
      font-size: 1.1em;
      text-align: center;
      max-width: 900px;
      margin: 0 auto 30px auto;
      padding: 0 15px;
      color: #cccccc;
    }

    /* Hero Section */
    .page-13win-20__hero-section {
      position: relative;
      width: 100%;
      min-height: 500px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      text-align: center;
      padding-top: 10px; /* Decorative top padding */
    }

    .page-13win-20__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-13win-20__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.9));
      z-index: 2;
    }

    .page-13win-20__hero-content {
      position: relative;
      z-index: 3;
      color: #ffffff;
      padding: 20px;
      max-width: 800px;
    }

    .page-13win-20__main-title {
      font-size: 3.5em;
      margin-bottom: 20px;
      color: #fdd835;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
      line-height: 1.2;
    }

    .page-13win-20__hero-description {
      font-size: 1.4em;
      margin-bottom: 30px;
      color: #e0e0e0;
    }

    .page-13win-20__promo-link {
      display: inline-block;
      background-color: #fdd835;
      color: #1a1a1a;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-13win-20__promo-link:hover {
      background-color: #ffeb3b;
      transform: translateY(-3px);
    }

    /* About Section */
    .page-13win-20__about-section {
      padding: 50px 20px;
      background-color: #222222;
      text-align: center;
    }

    .page-13win-20__image-content {
      max-width: 800px;
      width: 100%;
      height: auto;
      border-radius: 10px;
      margin-top: 30px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      display: block;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box !important;
    }

    /* Product Display Section */
    .page-13win-20__products-section {
      padding: 50px 20px;
      background-color: #1a1a1a;
    }

    .page-13win-20__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-13win-20__product-item {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      text-align: center;
      padding-bottom: 20px;
      transition: transform 0.3s ease;
      box-sizing: border-box !important;
      width: 100%; /* Ensure full width on mobile */
    }

    .page-13win-20__product-item:hover {
      transform: translateY(-5px);
    }

    .page-13win-20__product-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      margin-bottom: 15px;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-13win-20__product-title {
      font-size: 1.8em;
      color: #fdd835;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-13win-20__product-description {
      font-size: 1em;
      color: #cccccc;
      padding: 0 15px;
    }

    /* Promotions Section */
    .page-13win-20__promotions-section {
      padding: 50px 20px;
      background-color: #222222;
    }

    .page-13win-20__promo-cards {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-13win-20__promo-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.3);
      text-align: center;
      padding-bottom: 20px;
      flex: 1 1 45%; /* For two columns */
      min-width: 300px;
      transition: transform 0.3s ease;
      box-sizing: border-box !important;
      width: 100%; /* Ensure full width on mobile */
    }

    .page-13win-20__promo-card:hover {
      transform: translateY(-5px);
    }

    .page-13win-20__promo-image {
      width: 100%;
      height: 250px;
      object-fit: cover;
      margin-bottom: 15px;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-13win-20__promo-title {
      font-size: 1.8em;
      color: #fdd835;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-13win-20__promo-description {
      font-size: 1em;
      color: #cccccc;
      margin-bottom: 20px;
      padding: 0 15px;
    }

    .page-13win-20__promo-button {
      display: inline-block;
      background-color: #fdd835;
      color: #1a1a1a;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-13win-20__promo-button:hover {
      background-color: #ffeb3b;
    }

    /* Payment Methods Section */
    .page-13win-20__payments-section {
      padding: 50px 20px;
      background-color: #1a1a1a;
    }

    .page-13win-20__payment-methods {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .page-13win-20__payment-icon {
      width: 150px; /* Adjust size to meet minimum 200x200 if needed, but placeholder is 300x200*/
      height: auto;
      object-fit: contain;
      background-color: #333333;
      border-radius: 8px;
      padding: 10px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.2);
      transition: transform 0.3s ease;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-13win-20__payment-icon:hover {
      transform: translateY(-3px);
    }

    /* Game Providers Section */
    .page-13win-20__providers-section {
      padding: 50px 20px;
      background-color: #222222;
    }

    .page-13win-20__provider-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .page-13win-20__provider-name {
      background-color: #3a3a3a;
      color: #fdd835;
      padding: 10px 20px;
      border-radius: 25px;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 2px 5px rgba(0,0,0,0.2);
      transition: background-color 0.3s ease;
    }

    .page-13win-20__provider-name:hover {
      background-color: #4a4a4a;
    }

    /* FAQ Section */
    .page-13win-20__faq-section {
      padding: 50px 20px;
      background-color: #1a1a1a;
    }

    .page-13win-20__faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .page-13win-20__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 3px 10px rgba(0,0,0,0.2);
      box-sizing: border-box !important;
      width: 100%;
    }

    .page-13win-20__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: #3a3a3a;
      color: #fdd835;
      cursor: pointer;
      font-size: 1.2em;
      font-weight: bold;
      user-select: none;
      transition: background-color 0.3s ease;
      box-sizing: border-box !important;
    }

    .page-13win-20__faq-question:hover {
      background-color: #4a4a4a;
    }

    .page-13win-20__faq-question-text {
      margin: 0;
      color: inherit;
      font-size: 1em; /* Adjust to match parent font-size */
      pointer-events: none; /* Prevent text from blocking click event */
    }

    .page-13win-20__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
    }

    .page-13win-20__faq-item.active .page-13win-20__faq-toggle {
      transform: rotate(45deg);
    }

    .page-13win-20__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      color: #cccccc;
      background-color: #2a2a2a;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      box-sizing: border-box !important;
    }

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

    .page-13win-20__faq-answer p {
      margin: 0;
      padding-bottom: 10px; /* Add some space if multiple paragraphs */
    }

    /* Social Media Section */
    .page-13win-20__social-section {
      padding: 50px 20px;
      background-color: #222222;
      text-align: center;
    }

    .page-13win-20__social-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .page-13win-20__social-link {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-decoration: none;
      color: #fdd835;
      font-weight: bold;
      font-size: 1.1em;
      background-color: #3a3a3a;
      padding: 15px 10px;
      border-radius: 10px;
      transition: background-color 0.3s ease, transform 0.3s ease;
      min-width: 120px;
      flex: 1 1 auto;
      max-width: 150px;
      box-sizing: border-box !important;
      word-wrap: break-word !important;
      overflow-wrap: break-word !important;
      word-break: break-word !important;
    }

    .page-13win-20__social-link:hover {
      background-color: #4a4a4a;
      transform: translateY(-3px);
    }

    .page-13win-20__social-icon {
      width: 60px; /* Placeholder is 200x200, but display size can be smaller as long as actual image is large enough */
      height: 60px;
      object-fit: contain;
      margin-bottom: 8px;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    /* Floating Buttons */
    .page-13win-20__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 15px;
      z-index: 1000;
    }

    .page-13win-20__register-button,
    .page-13win-20__login-button {
      background-color: #fdd835;
      color: #1a1a1a;
      padding: 15px 25px;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1.1em;
      text-align: center;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0,0,0,0.3);
      transition: background-color 0.3s ease, transform 0.3s ease;
      min-width: 150px;
    }

    .page-13win-20__register-button:hover,
    .page-13win-20__login-button:hover {
      background-color: #ffeb3b;
      transform: translateY(-3px);
    }

    /* Responsive Adjustments */
    @media (max-width: 768px) {
      .page-13win-20__main-title {
        font-size: 2.5em;
      }

      .page-13win-20__hero-description {
        font-size: 1.1em;
      }

      .page-13win-20__promo-link {
        font-size: 1em;
        padding: 12px 25px;
      }

      .page-13win-20__section-title {
        font-size: 2em;
        padding-top: 30px;
      }

      .page-13win-20__text-content {
        font-size: 1em;
      }

      .page-13win-20__product-grid,
      .page-13win-20__promo-cards {
        grid-template-columns: 1fr; /* Single column for products/promos */
        flex-direction: column;
      }

      .page-13win-20__promo-card {
        flex: 1 1 100%;
      }

      .page-13win-20__product-item,
      .page-13win-20__promo-card,
      .page-13win-20__faq-item,
      .page-13win-20__social-link {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: 10px !important;
        padding-right: 10px !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-13win-20__product-item .page-13win-20__product-image,
      .page-13win-20__promo-card .page-13win-20__promo-image,
      .page-13win-20__image-content,
      .page-13win-20__payment-icon,
      .page-13win-20__social-icon {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-13win-20__faq-question {
        font-size: 1.1em;
        padding: 15px;
      }

      .page-13win-20__faq-answer {
        padding: 0 15px;
      }

      .page-13win-20__faq-item.active .page-13win-20__faq-answer {
        padding: 15px !important;
      }

      .page-13win-20__floating-buttons {
        flex-direction: row;
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        bottom: 15px;
        justify-content: space-around;
        gap: 10px;
      }

      .page-13win-20__register-button,
      .page-13win-20__login-button {
        flex: 1;
        padding: 12px 15px;
        font-size: 1em;
        min-width: unset;
      }

      .page-13win-20__payment-icon {
        width: calc(33% - 14px); /* 3 icons per row */
        min-width: 100px;
      }

      .page-13win-20__social-link {
        min-width: 100px;
        max-width: 120px;
        padding: 10px 5px;
        font-size: 0.9em;
      }

      .page-13win-20__social-icon {
        width: 50px;
        height: 50px;
      }
    }

    @media (max-width: 480px) {
      .page-13win-20__main-title {
        font-size: 2em;
      }

      .page-13win-20__section-title {
        font-size: 1.8em;
      }

      .page-13win-20__floating-buttons {
        flex-direction: column;
        align-items: center;
        width: auto;
        left: 50%;
        transform: translateX(-50%);
      }

      .page-13win-20__register-button,
      .page-13win-20__login-button {
        width: 180px;
        max-width: 100%;
      }

      .page-13win-20__payment-icon {
        width: calc(50% - 10px); /* 2 icons per row */
      }
    }