:root {
      --page-sunwin-primary-color: #f39c12; /* Vàng cam */
      --page-sunwin-secondary-color: #e74c3c; /* Đỏ */
      --page-sunwin-dark-bg: #2c3e50; /* Xám đen */
      --page-sunwin-light-bg: #ecf0f1; /* Xám nhạt */
      --page-sunwin-text-color: #34495e; /* Xám xanh đậm */
      --page-sunwin-white: #ffffff;
      --page-sunwin-border-radius: 8px;
      --page-sunwin-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-sunwin {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-sunwin-text-color);
      background-color: var(--page-sunwin-light-bg);
      overflow-x: hidden;
    }

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

    .page-sunwin__hero-section {
      background: linear-gradient(135deg, var(--page-sunwin-dark-bg), #34495e);
      color: var(--page-sunwin-white);
      text-align: center;
      padding: 10px 20px 60px; /* Adjusted padding-top for fixed header */
      border-radius: 0 0 var(--page-sunwin-border-radius) var(--page-sunwin-border-radius);
      margin-bottom: 40px;
      position: relative;
      overflow: hidden;
    }

    .page-sunwin__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: var(--page-sunwin-shadow);
      margin-bottom: 20px;
      display: block;
    }

    .page-sunwin__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-sunwin-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    .page-sunwin__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: var(--page-sunwin-light-bg);
    }

    .page-sunwin__button-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      margin-top: 30px;
    }

    .page-sunwin__button {
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-white);
      padding: 15px 30px;
      border: none;
      border-radius: var(--page-sunwin-border-radius);
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--page-sunwin-shadow);
    }

    .page-sunwin__button:hover {
      background-color: #e67e22; /* Slightly darker primary */
      transform: translateY(-2px);
    }

    .page-sunwin__button--secondary {
      background-color: var(--page-sunwin-secondary-color);
    }

    .page-sunwin__button--secondary:hover {
      background-color: #c0392b; /* Slightly darker secondary */
    }

    .page-sunwin__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-sunwin-secondary-color);
      color: var(--page-sunwin-white);
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .page-sunwin__floating-button:hover {
      background-color: #c0392b;
      transform: translateX(-50%) translateY(-3px);
    }

    .page-sunwin__section {
      background-color: var(--page-sunwin-white);
      padding: 40px;
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: var(--page-sunwin-shadow);
      margin-bottom: 30px;
    }

    .page-sunwin__section-title {
      color: var(--page-sunwin-dark-bg);
      font-size: 2em;
      margin-bottom: 25px;
      text-align: center;
      position: relative;
    }

    .page-sunwin__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: var(--page-sunwin-primary-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .page-sunwin__content-text {
      font-size: 1.05em;
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-sunwin__image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: var(--page-sunwin-shadow);
    }

    .page-sunwin__content-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--page-sunwin-border-radius);
    }

    .page-sunwin__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-sunwin__game-card {
      background-color: var(--page-sunwin-light-bg);
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: var(--page-sunwin-shadow);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-sunwin__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-sunwin__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-sunwin__game-card-title {
      font-size: 1.4em;
      color: var(--page-sunwin-dark-bg);
      margin: 15px 0 10px;
      padding: 0 15px;
    }

    .page-sunwin__game-card-description {
      font-size: 0.95em;
      color: var(--page-sunwin-text-color);
      padding: 0 15px 20px;
    }

    .page-sunwin__list {
      list-style-type: none;
      padding: 0;
      margin: 20px 0;
    }

    .page-sunwin__list-item {
      background-color: #f8f8f8;
      margin-bottom: 10px;
      padding: 15px 20px;
      border-left: 5px solid var(--page-sunwin-primary-color);
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      font-size: 1.05em;
    }

    .page-sunwin__faq-section {
      background-color: var(--page-sunwin-white);
      padding: 40px;
      border-radius: var(--page-sunwin-border-radius);
      box-shadow: var(--page-sunwin-shadow);
      margin-bottom: 30px;
    }

    .page-sunwin__faq-item {
      border-bottom: 1px solid #ddd;
      margin-bottom: 10px;
    }

    .page-sunwin__faq-item:last-child {
      border-bottom: none;
      margin-bottom: 0;
    }

    .page-sunwin__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-sunwin__faq-question:hover {
      background-color: #f9f9f9;
    }

    .page-sunwin__faq-question h3 {
      margin: 0;
      font-size: 1.15em;
      color: var(--page-sunwin-dark-bg);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-sunwin__faq-toggle {
      font-size: 1.5em;
      color: var(--page-sunwin-primary-color);
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-sunwin__faq-item.active .page-sunwin__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' visually */
    }

    .page-sunwin__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      color: var(--page-sunwin-text-color);
      font-size: 1em;
    }

    .page-sunwin__faq-item.active .page-sunwin__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-sunwin__call-to-action {
      text-align: center;
      padding: 40px;
      background-color: var(--page-sunwin-dark-bg);
      color: var(--page-sunwin-white);
      border-radius: var(--page-sunwin-border-radius);
      margin-top: 40px;
      box-shadow: var(--page-sunwin-shadow);
    }

    .page-sunwin__call-to-action h2 {
      color: var(--page-sunwin-primary-color);
      font-size: 2.2em;
      margin-bottom: 20px;
    }

    .page-sunwin__call-to-action p {
      font-size: 1.1em;
      margin-bottom: 30px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-sunwin__container {
        padding: 15px;
      }

      .page-sunwin__hero-section {
        padding: 10px 15px 40px; /* Adjusted padding-top for fixed header */
      }

      .page-sunwin__hero-title {
        font-size: 2em;
      }

      .page-sunwin__hero-subtitle {
        font-size: 1em;
      }

      .page-sunwin__button-group {
        flex-direction: column;
        gap: 10px;
      }

      .page-sunwin__button {
        width: 100%;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-sunwin__floating-button {
        width: calc(100% - 40px);
        bottom: 15px;
        font-size: 1em;
        padding: 12px 20px;
      }

      .page-sunwin__section {
        padding: 25px;
      }

      .page-sunwin__section-title {
        font-size: 1.7em;
      }

      .page-sunwin__content-text {
        font-size: 0.95em;
      }

      .page-sunwin__game-grid {
        grid-template-columns: 1fr;
      }

      .page-sunwin__game-card-image {
        height: 180px;
      }

      .page-sunwin__game-card-title {
        font-size: 1.2em;
      }

      .page-sunwin__list-item {
        font-size: 0.95em;
        padding: 12px 15px;
      }

      .page-sunwin__faq-question h3 {
        font-size: 1em;
      }

      .page-sunwin__faq-toggle {
        font-size: 1.3em;
      }

      .page-sunwin__call-to-action {
        padding: 30px;
      }

      .page-sunwin__call-to-action h2 {
        font-size: 1.8em;
      }

      .page-sunwin__call-to-action p {
        font-size: 1em;
      }

      /* Image responsive important styles */
      .page-sunwin__hero-image,
      .page-sunwin__content-image,
      .page-sunwin__game-card-image {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-sunwin__image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }