:root {
      --page-sunwinclub-primary-color: #f7b32b; /* Vàng cam */
      --page-sunwinclub-secondary-color: #2c3e50; /* Xám xanh đậm */
      --page-sunwinclub-accent-color: #e74c3c; /* Đỏ cam */
      --page-sunwinclub-text-color: #333;
      --page-sunwinclub-bg-color: #f0f2f5;
      --page-sunwinclub-card-bg: #ffffff;
      --page-sunwinclub-border-color: #e0e0e0;
    }

    .page-sunwinclub {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-sunwinclub-text-color);
      background-color: var(--page-sunwinclub-bg-color);
      padding-bottom: 80px; /* Space for floating button */
    }

    .page-sunwinclub__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-sunwinclub__hero-section {
      position: relative;
      background-color: var(--page-sunwinclub-secondary-color);
      color: #ffffff;
      text-align: center;
      padding: 10px 0 60px; /* Adjusted padding-top for fixed header */
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 400px;
    }

    .page-sunwinclub__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      filter: brightness(0.6); /* Slightly darken background for text readability */
    }

    .page-sunwinclub__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 20px;
    }

    .page-sunwinclub__hero-content h1 {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-sunwinclub-primary-color);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-sunwinclub__hero-content p {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: #e0e0e0;
    }

    .page-sunwinclub__button {
      display: inline-block;
      background-color: var(--page-sunwinclub-primary-color);
      color: var(--page-sunwinclub-secondary-color);
      padding: 15px 30px;
      border-radius: 50px;
      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-sunwinclub__button:hover {
      background-color: #ffc107;
      transform: translateY(-2px);
    }

    .page-sunwinclub__floating-promo-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-sunwinclub-accent-color);
      color: #ffffff;
      padding: 15px 25px;
      border-radius: 30px;
      text-align: center;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      cursor: pointer;
      animation: page-sunwinclub__pulse 2s infinite;
      text-decoration: none; /* Ensure it looks like a button but acts like a link */
    }

    .page-sunwinclub__floating-promo-button:hover {
      background-color: #c0392b;
      transform: scale(1.05);
    }

    @keyframes page-sunwinclub__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.03); }
      100% { transform: scale(1); }
    }

    .page-sunwinclub__section {
      background-color: var(--page-sunwinclub-card-bg);
      margin: 30px auto;
      padding: 40px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-sunwinclub__section h2 {
      color: var(--page-sunwinclub-secondary-color);
      font-size: 2em;
      margin-bottom: 25px;
      text-align: center;
      position: relative;
      padding-bottom: 10px;
    }

    .page-sunwinclub__section h2::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-sunwinclub-primary-color);
      border-radius: 2px;
    }

    .page-sunwinclub__section h3 {
      color: var(--page-sunwinclub-primary-color);
      font-size: 1.5em;
      margin-top: 30px;
      margin-bottom: 15px;
    }

    .page-sunwinclub__text-center {
      text-align: center;
    }

    .page-sunwinclub__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-sunwinclub__game-card {
      background-color: var(--page-sunwinclub-bg-color);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .page-sunwinclub__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    }

    .page-sunwinclub__game-card-image-wrapper {
      width: 100%;
      height: 200px; /* Fixed height for consistency */
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-sunwinclub__game-card-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .page-sunwinclub__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .page-sunwinclub__game-card-content h3 {
      color: var(--page-sunwinclub-secondary-color);
      font-size: 1.3em;
      margin-top: 0;
      margin-bottom: 10px;
    }

    .page-sunwinclub__game-card-content p {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .page-sunwinclub__download-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
      flex-wrap: wrap;
    }

    .page-sunwinclub__download-button {
      background-color: var(--page-sunwinclub-secondary-color);
      color: #ffffff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .page-sunwinclub__download-button:hover {
      background-color: #34495e;
    }

    .page-sunwinclub__download-icon {
      width: 24px;
      height: 24px;
      vertical-align: middle;
      filter: invert(1); /* This is allowed as it doesn't change color, just makes it white for the icon */
    }

    .page-sunwinclub__qr-code-section {
      display: flex;
      justify-content: center;
      gap: 40px;
      margin-top: 40px;
      flex-wrap: wrap;
    }

    .page-sunwinclub__qr-code-item {
      text-align: center;
      background-color: var(--page-sunwinclub-card-bg);
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-sunwinclub__qr-code-item img {
      width: 180px;
      height: 180px;
      max-width: 100%; /* Ensure responsiveness */
      height: auto;
      margin-bottom: 15px;
      border: 1px solid var(--page-sunwinclub-border-color);
      border-radius: 5px;
      object-fit: contain;
    }

    .page-sunwinclub__qr-code-item p {
      font-weight: bold;
      color: var(--page-sunwinclub-secondary-color);
    }

    .page-sunwinclub__list-benefits {
      list-style: none;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 25px;
    }

    .page-sunwinclub__list-benefits li {
      background-color: var(--page-sunwinclub-card-bg);
      padding: 20px;
      border-left: 5px solid var(--page-sunwinclub-primary-color);
      border-radius: 5px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      font-size: 1.05em;
      color: var(--page-sunwinclub-text-color);
    }

    .page-sunwinclub__promotions-section img {
      width: 100%;
      max-width: 800px;
      height: auto;
      display: block;
      margin: 30px auto;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    /* FAQ Section Styles */
    .page-sunwinclub__faq-item {
      background-color: var(--page-sunwinclub-card-bg);
      border: 1px solid var(--page-sunwinclub-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
    }

    .page-sunwinclub__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #fcfcfc;
      cursor: pointer;
      user-select: none;
      font-weight: bold;
      color: var(--page-sunwinclub-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-sunwinclub__faq-question:hover {
      background-color: #f5f5f5;
    }

    .page-sunwinclub__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-sunwinclub-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event on parent div */
    }

    .page-sunwinclub__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      width: 30px;
      text-align: center;
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent div */
      transition: transform 0.3s ease;
      color: var(--page-sunwinclub-primary-color);
    }

    .page-sunwinclub__faq-item.active .page-sunwinclub__faq-toggle {
      transform: rotate(45deg); /* Change + to X (or rotate to -) */
      color: var(--page-sunwinclub-accent-color);
    }

    .page-sunwinclub__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 0.4s ease;
      opacity: 0;
      color: #555;
    }

    .page-sunwinclub__faq-item.active .page-sunwinclub__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px !important;
      opacity: 1;
    }

    .page-sunwinclub__faq-answer p {
      margin: 0 0 10px 0;
    }
    .page-sunwinclub__faq-answer p:last-child {
      margin-bottom: 0;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-sunwinclub__hero-section {
        padding-top: 10px; /* Ensure mobile header offset */
        min-height: 300px;
      }
      .page-sunwinclub__hero-content h1 {
        font-size: 2em;
      }
      .page-sunwinclub__hero-content p {
        font-size: 1em;
      }
      .page-sunwinclub__button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-sunwinclub__floating-promo-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-sunwinclub__section {
        margin: 20px auto;
        padding: 25px;
      }
      .page-sunwinclub__section h2 {
        font-size: 1.8em;
      }
      .page-sunwinclub__section h3 {
        font-size: 1.3em;
      }
      .page-sunwinclub__game-grid {
        grid-template-columns: 1fr;
      }
      .page-sunwinclub__qr-code-section {
        flex-direction: column;
        align-items: center;
        gap: 20px;
      }
      .page-sunwinclub__list-benefits {
        grid-template-columns: 1fr;
      }
      .page-sunwinclub__faq-question {
        padding: 12px 15px;
      }
      .page-sunwinclub__faq-question h3 {
        font-size: 1em;
      }
      .page-sunwinclub__faq-toggle {
        font-size: 1.5em;
      }
      .page-sunwinclub__faq-answer {
        padding: 0 15px;
      }
      .page-sunwinclub__faq-item.active .page-sunwinclub__faq-answer {
        padding: 15px !important;
      }

      /* Image responsiveness for all images */
      .page-sunwinclub img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-sunwinclub__game-card-image-wrapper,
      .page-sunwinclub__qr-code-item img {
        width: 100% !important; /* Ensure containers also adapt */
        max-width: 100% !important;
        height: auto !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }