:root {
      --primary-color: #e44d26; /* Một màu cam/đỏ rực rỡ */
      --secondary-color: #333; /* Màu văn bản chính */
      --accent-color: #f0ad4e; /* Màu vàng/gold cho điểm nhấn */
      --background-light: #f5f5f5; /* Nền sáng */
      --background-dark: #222; /* Nền tối */
      --text-light: #fff; /* Văn bản trên nền tối */
      --text-dark: #333; /* Văn bản trên nền sáng */
      --border-color: #ddd; /* Màu đường viền */
      --button-hover-color: #c23b1f; /* Màu nút khi hover */
      --shadow-light: rgba(0, 0, 0, 0.1); /* Bóng nhẹ */
      --shadow-medium: rgba(0, 0, 0, 0.2); /* Bóng trung bình */
    }

    body {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--text-dark);
      background-color: var(--background-light);
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* Đảm bảo khoảng cách với header cố định được xử lý bởi body padding-top */
    .page-vin-123 {
      padding-top: 10px; /* Khoảng đệm trang trí nhỏ */
    }

    .page-vin-123__section {
      padding: 40px 20px;
      margin: 0 auto;
      max-width: 1200px;
      text-align: center;
    }

    .page-vin-123__section--dark {
      background-color: var(--background-dark);
      color: var(--text-light);
    }

    .page-vin-123__title {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: 20px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-vin-123__subtitle {
      font-size: 1.8em;
      color: var(--secondary-color);
      margin-bottom: 30px;
    }
    .page-vin-123__section--dark .page-vin-123__subtitle {
        color: var(--text-light);
    }

    .page-vin-123__text {
      font-size: 1.1em;
      margin-bottom: 20px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-vin-123__button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--text-light);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-vin-123__button:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-2px);
    }

    /* Hero Section */
    .page-vin-123__hero-section {
      position: relative;
      width: 100%;
      height: 60vh; /* Điều chỉnh chiều cao cho thiết bị di động */
      min-height: 300px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      color: var(--text-light);
      text-align: center;
      overflow: hidden;
      padding: 20px; /* Đảm bảo nội dung không quá sát mép */
      box-sizing: border-box;
    }

    .page-vin-123__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
    }

    .page-vin-123__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      z-index: -1;
    }

    .page-vin-123__hero-content {
      position: relative;
      z-index: 1;
      max-width: 90%;
    }

    .page-vin-123__hero-title {
      font-size: 2.5em;
      margin-bottom: 10px;
      color: var(--text-light);
    }

    .page-vin-123__hero-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Nút Đăng ký/Đăng nhập nổi */
    .page-vin-123__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
      background-color: rgba(0, 0, 0, 0.7);
      padding: 10px 20px;
      border-radius: 50px;
      box-shadow: 0 4px 15px var(--shadow-medium);
    }

    .page-vin-123__floating-button {
      background-color: var(--primary-color);
      color: var(--text-light);
      padding: 10px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      white-space: nowrap;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-vin-123__floating-button:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-2px);
    }

    /* Danh mục trò chơi */
    .page-vin-123__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-vin-123__game-card {
      background-color: var(--text-light);
      border-radius: 10px;
      box-shadow: 0 5px 15px var(--shadow-light);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-sizing: border-box;
    }

    .page-vin-123__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--shadow-medium);
    }

    .page-vin-123__game-card-image {
      width: 100%;
      height: 200px; /* Chiều cao tối thiểu cho hình ảnh nội dung */
      object-fit: cover;
      display: block;
    }

    .page-vin-123__game-card-content {
      padding: 20px;
      text-align: left;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-vin-123__game-card-title {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-top: 0;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-vin-123__game-card-description {
      font-size: 0.95em;
      color: var(--secondary-color);
      margin-bottom: 15px;
    }

    /* Khuyến mãi */
    .page-vin-123__promotion-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      margin-top: 40px;
      list-style: none; /* Xóa kiểu danh sách mặc định */
      padding: 0; /* Xóa padding mặc định */
    }

    .page-vin-123__promotion-item {
      background-color: var(--text-light);
      border-radius: 10px;
      box-shadow: 0 5px 15px var(--shadow-light);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      width: 100%;
      max-width: 350px;
      text-align: left;
      box-sizing: border-box;
    }

    .page-vin-123__promotion-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--shadow-medium);
    }

    .page-vin-123__promotion-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .page-vin-123__promotion-content {
      padding: 20px;
    }

    .page-vin-123__promotion-title {
      font-size: 1.3em;
      color: var(--primary-color);
      margin-top: 0;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-vin-123__promotion-description {
      font-size: 0.95em;
      color: var(--secondary-color);
      margin-bottom: 15px;
    }

    /* Tại sao chọn chúng tôi */
    .page-vin-123__feature-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
      list-style: none;
      padding: 0;
    }

    .page-vin-123__feature-item {
      background-color: var(--text-light);
      border-radius: 10px;
      box-shadow: 0 5px 15px var(--shadow-light);
      padding: 30px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      box-sizing: border-box;
    }

    .page-vin-123__feature-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px var(--shadow-medium);
    }

    .page-vin-123__feature-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 15px;
      object-fit: contain;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-vin-123__feature-title {
      font-size: 1.2em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-vin-123__feature-description {
      font-size: 0.9em;
      color: var(--secondary-color);
    }

    /* Nhà cung cấp & Phương thức thanh toán */
    .page-vin-123__logo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      margin-top: 40px;
      justify-items: center;
      align-items: center;
    }

    .page-vin-123__logo-item {
      background-color: var(--text-light);
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px var(--shadow-light);
      display: flex;
      justify-content: center;
      align-items: center;
      height: 80px; /* Chiều cao cố định cho logo */
      box-sizing: border-box;
    }

    .page-vin-123__logo-image {
      max-width: 100%;
      max-height: 100%;
      object-fit: contain;
      display: block;
    }

    /* Phần FAQ */
    .page-vin-123__faq-container {
      margin-top: 40px;
      text-align: left;
    }

    .page-vin-123__faq-item {
      background-color: var(--text-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px var(--shadow-light);
    }

    .page-vin-123__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: var(--background-light);
      color: var(--secondary-color);
      font-weight: bold;
      font-size: 1.1em;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-vin-123__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-vin-123__faq-question h3 {
      margin: 0;
      color: var(--primary-color);
      font-size: 1.1em;
      pointer-events: none; /* Ngăn h3 chặn sự kiện click */
      flex-grow: 1;
    }

    .page-vin-123__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      color: var(--primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn biểu tượng toggle chặn sự kiện click */
    }

    .page-vin-123__faq-item.active .page-vin-123__faq-toggle {
      transform: rotate(45deg); /* Thay đổi '+' thành 'x' hoặc tương tự */
    }

    .page-vin-123__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Padding ban đầu */
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--secondary-color);
      font-size: 0.95em;
    }

    .page-vin-123__faq-item.active .page-vin-123__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa nội dung */
      padding: 20px 20px !important; /* Sử dụng !important */
      opacity: 1;
    }

    /* Phần CTA */
    .page-vin-123__cta-section {
      background-color: var(--primary-color);
      color: var(--text-light);
      padding: 50px 20px;
      text-align: center;
      margin-top: 60px;
    }

    .page-vin-123__cta-title {
      color: var(--text-light);
      font-size: 2.5em;
      margin-bottom: 20px;
    }

    .page-vin-123__cta-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-vin-123__cta-button {
      background-color: var(--accent-color);
      color: var(--text-dark);
      padding: 15px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-vin-123__cta-button:hover {
      background-color: #e09b30; /* Màu nhấn tối hơn */
      transform: translateY(-2px);
    }

    /* Thiết kế đáp ứng */
    @media (max-width: 768px) {
      .page-vin-123__hero-section {
        height: 50vh;
        min-height: 250px;
      }
      .page-vin-123__hero-title {
        font-size: 1.8em;
      }
      .page-vin-123__hero-description {
        font-size: 1em;
      }

      .page-vin-123__title {
        font-size: 2em;
      }
      .page-vin-123__subtitle {
        font-size: 1.4em;
      }
      .page-vin-123__text {
        font-size: 1em;
      }
      .page-vin-123__section {
        padding: 30px 15px;
      }

      .page-vin-123__floating-buttons {
        bottom: 15px;
        gap: 10px;
        padding: 8px 15px;
      }
      .page-vin-123__floating-button {
        padding: 8px 15px;
        font-size: 0.9em;
      }

      .page-vin-123__game-grid {
        grid-template-columns: 1fr;
      }

      .page-vin-123__promotion-item {
        max-width: 100%;
      }

      .page-vin-123__feature-list {
        grid-template-columns: 1fr;
      }

      .page-vin-123__logo-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }

      /* Yêu cầu đáp ứng cho các mục danh sách */
      .page-vin-123__promotion-list,
      .page-vin-123__feature-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 10px !important; /* Điều chỉnh padding cho di động */
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-vin-123__promotion-item,
      .page-vin-123__feature-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px 15px !important; /* Điều chỉnh padding */
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }

      .page-vin-123__game-card,
      .page-vin-123__logo-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;
        word-break: break-word !important;
      }

      /* Yêu cầu đáp ứng cho hình ảnh */
      .page-vin-123 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-vin-123__game-card-image,
      .page-vin-123__promotion-image,
      .page-vin-123__feature-icon,
      .page-vin-123__logo-image,
      .page-vin-123__hero-background {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-vin-123__cta-title {
        font-size: 2em;
      }
      .page-vin-123__cta-description {
        font-size: 1em;
      }
      .page-vin-123__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-vin-123__faq-question,
      .page-vin-123__faq-answer {
        padding-left: 15px !important;
        padding-right: 15px !important;
      }
      .page-vin-123__faq-question h3 {
        font-size: 1em;
      }
      .page-vin-123__faq-toggle {
        font-size: 1.5em;
      }
    }
    @media (max-width: 480px) {
      .page-vin-123__hero-title {
        font-size: 1.5em;
      }
      .page-vin-123__floating-buttons {
        flex-direction: column;
        width: calc(100% - 40px);
        left: 20px;
        transform: none;
        bottom: 10px;
        border-radius: 10px;
        align-items: center;
      }
      .page-vin-123__floating-button {
        width: 100%;
        text-align: center;
      }
    }