/* Tổng quan */
    .page-13-win {
      font-family: Arial, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f4f7f6;
      padding-bottom: 100px; /* Để chừa chỗ cho nút nổi */
    }

    /* Đảm bảo khoảng cách với header cố định */
    .page-13-win__hero-section {
      padding-top: 10px; /* Khoảng cách nhỏ dưới header */
    }

    /* Các phần chung */
    .page-13-win__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-13-win__section--dark {
      background-color: #2a2a2a;
      color: #f0f0f0;
    }

    .page-13-win__section-title {
      font-size: 2.5em;
      color: #c70039; /* Màu đỏ thương hiệu */
      margin-bottom: 30px;
      text-transform: uppercase;
      font-weight: bold;
    }
    .page-13-win__section--dark .page-13-win__section-title {
      color: #f0f0f0;
    }

    .page-13-win__text {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: #555;
    }
    .page-13-win__section--dark .page-13-win__text {
      color: #ccc;
    }

    /* Phần Hero */
    .page-13-win__hero-section {
      position: relative;
      overflow: hidden;
      background-color: #1a1a1a;
      color: #fff;
      padding: 60px 20px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 60vh;
      box-sizing: border-box;
    }

    .page-13-win__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.4;
      z-index: 1;
      max-width: 100%;
    }

    .page-13-win__hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
    }

    .page-13-win__hero-title {
      font-size: 3em;
      margin-bottom: 20px;
      color: #fff;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-13-win__hero-subtitle {
      font-size: 1.4em;
      margin-bottom: 30px;
      color: #f0f0f0;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    /* Nút nổi */
    .page-13-win__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-13-win__floating-button {
      background-color: #c70039; /* Màu đỏ thương hiệu */
      color: #fff;
      padding: 12px 25px;
      border: none;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      text-align: center;
      display: block;
      min-width: 120px;
    }

    .page-13-win__floating-button:hover {
      background-color: #9a002c;
      transform: translateY(-2px);
    }

    .page-13-win__floating-button--secondary {
      background-color: #007bff;
    }

    .page-13-win__floating-button--secondary:hover {
      background-color: #0056b3;
    }

    /* Sản phẩm nổi bật */
    .page-13-win__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-13-win__product-card {
      background-color: #fff;
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      text-align: left;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .page-13-win__product-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-13-win__product-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-13-win__product-title {
      font-size: 1.4em;
      color: #c70039;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-13-win__product-description {
      font-size: 0.95em;
      color: #666;
      line-height: 1.5;
    }

    /* Khuyến mãi */
    .page-13-win__promotion-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
    }

    .page-13-win__promotion-item {
      background-color: #fff;
      border-left: 5px solid #c70039;
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      text-align: left;
      box-sizing: border-box;
    }

    .page-13-win__promotion-title {
      font-size: 1.3em;
      color: #c70039;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-13-win__promotion-description {
      color: #555;
      font-size: 1em;
    }

    /* Nhà cung cấp & Thanh toán */
    .page-13-win__partner-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
      align-items: center;
      justify-items: center;
    }

    .page-13-win__partner-item {
      background-color: #fff;
      padding: 15px;
      border-radius: 10px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      height: 100px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-sizing: border-box;
      max-width: 100%;
    }

    .page-13-win__partner-logo {
      max-width: 100%;
      max-height: 70px;
      object-fit: contain;
      width: auto;
      height: auto;
      box-sizing: border-box;
    }

    /* FAQ */
    .page-13-win__faq-container {
      margin-top: 30px;
      text-align: left;
    }

    .page-13-win__faq-item {
      background-color: #fff;
      margin-bottom: 15px;
      border-radius: 10px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      overflow: hidden;
    }

    .page-13-win__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid #eee;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-13-win__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-13-win__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #333;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-13-win__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #c70039;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

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

    .page-13-win__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #666;
      font-size: 1em;
    }

    .page-13-win__faq-item.active .page-13-win__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    /* CTA cuối trang */
    .page-13-win__cta-section {
      background-color: #c70039;
      color: #fff;
      padding: 50px 20px;
      text-align: center;
    }

    .page-13-win__cta-title {
      font-size: 2.2em;
      margin-bottom: 20px;
      color: #fff;
    }

    .page-13-win__cta-text {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-13-win__cta-button {
      background-color: #fff;
      color: #c70039;
      padding: 15px 35px;
      border: none;
      border-radius: 30px;
      font-size: 1.2em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-block;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

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

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-13-win__hero-title {
        font-size: 2.5em;
      }
      .page-13-win__hero-subtitle {
        font-size: 1.2em;
      }
      .page-13-win__section-title {
        font-size: 2em;
      }
      .page-13-win__product-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
      .page-13-win__partner-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-13-win__section {
        padding: 30px 15px;
      }
      .page-13-win__hero-section {
        padding: 40px 15px;
        min-height: 50vh;
      }
      .page-13-win__hero-title {
        font-size: 2em;
      }
      .page-13-win__hero-subtitle {
        font-size: 1em;
      }
      .page-13-win__section-title {
        font-size: 1.8em;
      }
      .page-13-win__text {
        font-size: 1em;
      }
      .page-13-win__floating-buttons {
        flex-direction: row;
        width: calc(100% - 40px);
        bottom: 15px;
        right: 20px;
        left: 20px;
        justify-content: space-around;
        gap: 10px;
      }
      .page-13-win__floating-button {
        flex: 1;
        padding: 10px 15px;
        font-size: 1em;
        min-width: unset;
      }
      .page-13-win {
        padding-bottom: 80px; /* Điều chỉnh cho nút nổi di động */
      }
      .page-13-win__product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .page-13-win__promotion-list {
        grid-template-columns: 1fr;
        gap: 20px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-13-win__promotion-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 20px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-13-win__partner-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-13-win__cta-title {
        font-size: 1.8em;
      }
      .page-13-win__cta-text {
        font-size: 1em;
      }
      .page-13-win__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-13-win__faq-question {
        padding: 15px 20px;
      }
      .page-13-win__faq-question h3 {
        font-size: 1.1em;
      }
      .page-13-win__faq-answer {
        padding: 0 20px;
      }
      .page-13-win__faq-item.active .page-13-win__faq-answer {
        padding: 15px 20px !important;
      }
    }

    @media (max-width: 480px) {
      .page-13-win__hero-title {
        font-size: 1.8em;
      }
      .page-13-win__hero-subtitle {
        font-size: 0.9em;
      }
      .page-13-win__section-title {
        font-size: 1.6em;
      }
      .page-13-win__floating-buttons {
        bottom: 10px;
        right: 10px;
        left: 10px;
        gap: 8px;
      }
      .page-13-win__floating-button {
        padding: 8px 12px;
        font-size: 0.9em;
      }
      .page-13-win {
        padding-bottom: 70px;
      }
    }