:root {
      --primary-color: #FFD700; /* Gold */
      --secondary-color: #000000; /* Black */
      --text-color: #FFFFFF; /* White */
      --dark-text-color: #333333; /* Dark Grey for light backgrounds */
      --background-dark: #1a1a1a; /* Dark background */
      --background-light: #f0f2f5; /* Light background */
      --accent-color: #FF4500; /* OrangeRed */
    }

    .page-1-win-trang-web {
      font-family: 'Arial', sans-serif;
      background-color: var(--background-dark);
      color: var(--text-color);
      line-height: 1.6;
      padding-top: var(--header-offset, 122px); /* Fallback for header offset */
    }

    /* General containers */
    .page-1-win-trang-web__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-1-win-trang-web__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-1-win-trang-web__section--dark {
      background-color: var(--secondary-color);
      color: var(--text-color);
    }

    .page-1-win-trang-web__section--light {
      background-color: var(--background-light);
      color: var(--dark-text-color);
    }

    .page-1-win-trang-web__title {
      font-size: 2.5em;
      margin-bottom: 20px;
      color: var(--primary-color);
      text-align: center;
      text-transform: uppercase;
      font-weight: bold;
    }

    .page-1-win-trang-web__subtitle {
      font-size: 1.8em;
      margin-bottom: 20px;
      color: var(--text-color);
      text-align: center;
    }
    .page-1-win-trang-web__section--light .page-1-win-trang-web__subtitle,
    .page-1-win-trang-web__section--light .page-1-win-trang-web__title {
      color: var(--dark-text-color);
    }


    /* Hero Section */
    .page-1-win-trang-web__hero {
      position: relative;
      padding: 10px 0 60px 0; /* Adjusted for body padding-top */
      text-align: center;
      background-color: #000;
      overflow: hidden;
    }

    .page-1-win-trang-web__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
      opacity: 0.6;
    }

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

    .page-1-win-trang-web__hero-logo {
      font-size: 3em;
      font-weight: bold;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 20px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }
    .page-1-win-trang-web__hero-description {
      font-size: 1.1em;
      margin-bottom: 30px;
      color: var(--text-color);
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Floating Buttons */
    .page-1-win-trang-web__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-1-win-trang-web__btn {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--primary-color);
      color: var(--secondary-color);
      text-decoration: none;
      border-radius: 50px;
      font-weight: bold;
      font-size: 1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-1-win-trang-web__btn:hover {
      background-color: #FFC107;
      transform: translateY(-2px);
    }

    .page-1-win-trang-web__btn--secondary {
      background-color: var(--accent-color);
      color: var(--text-color);
    }

    .page-1-win-trang-web__btn--secondary:hover {
      background-color: #e03e00;
    }

    /* Product Display */
    .page-1-win-trang-web__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
      text-align: center; /* Center images */
    }

    .page-1-win-trang-web__product-item {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: center; /* Center content horizontally */
      padding-bottom: 20px; /* Add padding to bottom for text */
    }

    .page-1-win-trang-web__product-item:hover {
      transform: translateY(-5px);
    }

    .page-1-win-trang-web__product-image {
      width: 100%;
      height: 250px;
      object-fit: cover;
      display: block;
    }

    .page-1-win-trang-web__product-content {
      padding: 15px;
      text-align: center;
      flex-grow: 1;
      width: 100%; /* Ensure content takes full width */
      box-sizing: border-box;
    }

    .page-1-win-trang-web__product-title {
      font-size: 1.3em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-1-win-trang-web__product-description {
      font-size: 0.95em;
      color: var(--text-color);
      margin-bottom: 15px;
    }

    /* Promotion Section */
    .page-1-win-trang-web__promo-card {
      background-color: var(--primary-color);
      color: var(--dark-text-color);
      padding: 30px;
      border-radius: 15px;
      margin-top: 30px;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    .page-1-win-trang-web__promo-card h3 {
      font-size: 2em;
      margin-bottom: 15px;
      color: var(--secondary-color);
    }

    .page-1-win-trang-web__promo-card p {
      font-size: 1.1em;
      margin-bottom: 25px;
      max-width: 800px;
    }

    .page-1-win-trang-web__promo-card .page-1-win-trang-web__btn {
      background-color: var(--accent-color);
      color: var(--text-color);
      padding: 15px 35px;
      font-size: 1.1em;
    }

    .page-1-win-trang-web__promo-card .page-1-win-trang-web__btn:hover {
      background-color: #e03e00;
    }

    /* Providers and Payments */
    .page-1-win-trang-web__logo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
      padding: 0 20px;
    }

    .page-1-win-trang-web__logo-item {
      background-color: #333;
      padding: 15px;
      border-radius: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 80px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-1-win-trang-web__logo-item img {
      max-width: 100%;
      height: auto;
      max-height: 60px;
      object-fit: contain;
      filter: grayscale(100%);
      opacity: 0.7;
      transition: filter 0.3s ease, opacity 0.3s ease;
    }

    .page-1-win-trang-web__logo-item img:hover {
      filter: grayscale(0%);
      opacity: 1;
    }

    /* FAQ Section */
    .page-1-win-trang-web__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-1-win-trang-web__faq-item {
      background-color: #2a2a2a;
      margin-bottom: 10px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-1-win-trang-web__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      user-select: none;
      background-color: #333;
      color: var(--primary-color);
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-1-win-trang-web__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click */
      color: var(--primary-color); /* Ensure text contrast */
    }

    .page-1-win-trang-web__faq-question:hover {
      background-color: #444;
    }

    .page-1-win-trang-web__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      pointer-events: none; /* Prevent toggle icon from blocking click */
      color: var(--primary-color); /* Ensure text contrast */
    }

    .page-1-win-trang-web__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding */
      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(--text-color); /* Ensure text contrast */
      text-align: left;
    }

    .page-1-win-trang-web__faq-item.active .page-1-win-trang-web__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px !important; /* Adjusted padding when open */
      opacity: 1;
    }

    .page-1-win-trang-web__faq-item.active .page-1-win-trang-web__faq-question {
      background-color: #444;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-1-win-trang-web {
        padding-top: var(--header-offset, 100px); /* Adjust for smaller header on mobile */
      }
      .page-1-win-trang-web__container {
        padding: 15px;
      }

      .page-1-win-trang-web__title {
        font-size: 2em;
      }

      .page-1-win-trang-web__subtitle {
        font-size: 1.5em;
      }

      .page-1-win-trang-web__hero-logo {
        font-size: 2.5em;
      }

      .page-1-win-trang-web__hero-description {
        font-size: 1em;
      }

      .page-1-win-trang-web__floating-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row; /* Horizontal on smaller screens if needed, or keep vertical */
        width: calc(100% - 30px);
        justify-content: space-around;
      }
      .page-1-win-trang-web__btn {
        padding: 10px 18px;
        font-size: 0.9em;
        flex: 1; /* Allow buttons to grow */
      }

      .page-1-win-trang-web__product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-1-win-trang-web__promo-card {
        padding: 20px;
      }

      .page-1-win-trang-web__promo-card h3 {
        font-size: 1.5em;
      }

      .page-1-win-trang-web__promo-card p {
        font-size: 1em;
      }

      .page-1-win-trang-web__logo-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }

      .page-1-win-trang-web__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-1-win-trang-web__faq-answer {
        padding: 0 15px; /* Initial padding for mobile */
      }
      .page-1-win-trang-web__faq-item.active .page-1-win-trang-web__faq-answer {
        padding: 15px !important; /* Adjusted padding when open for mobile */
      }
      .page-1-win-trang-web__faq-toggle {
        font-size: 1.2em;
      }

      /* Image responsiveness */
      .page-1-win-trang-web__product-image,
      .page-1-win-trang-web__logo-item img {
          max-width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
      }
      /* Ensure image containers are also responsive */
      .page-1-win-trang-web__product-item,
      .page-1-win-trang-web__logo-item {
          width: 100% !important;
          max-width: 100% !important;
          overflow: hidden !important;
          box-sizing: border-box !important;
      }

      /* List item responsiveness for any ul/ol like structure */
      .page-1-win-trang-web__feature-list,
      .page-1-win-trang-web__game-list,
      .page-1-win-trang-web__payment-list,
      .page-1-win-trang-web__social-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-1-win-trang-web__feature-list li,
      .page-1-win-trang-web__game-list li,
      .page-1-win-trang-web__payment-list li,
      .page-1-win-trang-web__social-list li {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 10px 0 !important; /* Adjust padding for mobile */
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
    }

    @media (max-width: 480px) {
      .page-1-win-trang-web__floating-buttons {
        flex-direction: column; /* Back to vertical on very small screens */
      }
      .page-1-win-trang-web__btn {
        width: 100%;
      }
    }