:root {
      --page-sunwin-primary-color: #e44d26; /* Cam đỏ */
      --page-sunwin-secondary-color: #333; /* Đen xám */
      --page-sunwin-accent-color: #f7b32b; /* Vàng cam */
      --page-sunwin-background-light: #f9f9f9;
      --page-sunwin-background-dark: #2c3e50; /* Xanh đậm */
      --page-sunwin-text-light: #fff;
      --page-sunwin-text-dark: #333;
      --page-sunwin-border-color: #ddd;
    }

    .page-sunwin {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-sunwin-text-dark);
      background-color: var(--page-sunwin-background-light);
      padding-bottom: 80px; /* Space for fixed footer */
    }

    .page-sunwin__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    /* Hero Section */
    .page-sunwin__hero-section {
      position: relative;
      background-color: var(--page-sunwin-background-dark);
      color: var(--page-sunwin-text-light);
      text-align: center;
      padding: 10px 0 60px 0; /* Adjusted padding-top for fixed header */
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 400px;
    }

    .page-sunwin__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 0;
      filter: brightness(0.6);
    }

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

    .page-sunwin__hero-title {
      font-size: 2.8em;
      margin-bottom: 20px;
      color: var(--page-sunwin-text-light);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
      font-weight: bold;
    }

    .page-sunwin__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: var(--page-sunwin-text-light);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    }

    .page-sunwin__cta-button {
      display: inline-block;
      background-color: var(--page-sunwin-accent-color);
      color: var(--page-sunwin-text-dark);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 4px 10px rgba(0,0,0,0.3);
      cursor: pointer;
      border: none;
    }

    .page-sunwin__cta-button:hover {
      background-color: #ffc107;
      transform: translateY(-3px);
    }

    /* Floating Promo Button */
    .page-sunwin__floating-promo-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-text-light);
      padding: 15px 25px;
      border-radius: 30px;
      text-align: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.3);
      z-index: 1000;
      cursor: pointer;
      font-weight: bold;
      font-size: 1em;
      transition: transform 0.3s ease, background-color 0.3s ease;
      animation: page-sunwin-pulse 2s infinite;
      border: none;
      white-space: nowrap;
    }

    .page-sunwin__floating-promo-button:hover {
      background-color: #cc3e1b;
      transform: scale(1.05);
    }

    @keyframes page-sunwin-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    /* General Section Styling */
    .page-sunwin__section {
      padding: 60px 0;
      background-color: var(--page-sunwin-background-light);
    }

    .page-sunwin__section--dark {
      background-color: var(--page-sunwin-background-dark);
      color: var(--page-sunwin-text-light);
    }

    .page-sunwin__section-title {
      font-size: 2.2em;
      color: var(--page-sunwin-secondary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
    }

    .page-sunwin__section--dark .page-sunwin__section-title {
      color: var(--page-sunwin-text-light);
    }

    .page-sunwin__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: -10px;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-sunwin-primary-color);
      border-radius: 2px;
    }

    .page-sunwin__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: justify;
    }

    .page-sunwin__text-content p {
      margin-bottom: 15px;
    }

    /* Info Cards */
    .page-sunwin__info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-sunwin__info-card {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.1);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      height: 100%;
      box-sizing: border-box;
    }

    .page-sunwin__info-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }

    .page-sunwin__info-card-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 20px;
      object-fit: contain;
    }

    .page-sunwin__info-card-title {
      font-size: 1.5em;
      color: var(--page-sunwin-primary-color);
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-sunwin__info-card-description {
      font-size: 1em;
      color: var(--page-sunwin-secondary-color);
      flex-grow: 1;
    }

    /* Game Categories */
    .page-sunwin__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-sunwin__game-card {
      background-color: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
    }

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

    .page-sunwin__game-card-image {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

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

    .page-sunwin__game-card-title {
      font-size: 1.3em;
      color: var(--page-sunwin-secondary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-sunwin__game-card-description {
      font-size: 0.95em;
      color: #666;
      flex-grow: 1;
      margin-bottom: 15px;
    }

    .page-sunwin__game-card-button {
      display: block;
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-text-light);
      padding: 10px 15px;
      border-radius: 5px;
      text-align: center;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
      cursor: pointer;
      border: none;
    }

    .page-sunwin__game-card-button:hover {
      background-color: #cc3e1b;
    }

    /* FAQ Section */
    .page-sunwin__faq-section {
      padding: 60px 0;
      background-color: var(--page-sunwin-background-light);
    }

    .page-sunwin__faq-list {
      max-width: 800px;
      margin: 40px auto 0 auto;
      border-top: 1px solid var(--page-sunwin-border-color);
    }

    .page-sunwin__faq-item {
      border-bottom: 1px solid var(--page-sunwin-border-color);
      margin-bottom: 10px;
    }

    .page-sunwin__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 15px;
      cursor: pointer;
      user-select: none;
      background-color: #fff;
      transition: background-color 0.3s ease;
    }

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

    .page-sunwin__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-sunwin-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-sunwin__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-sunwin-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-sunwin__faq-item.active .page-sunwin__faq-toggle {
      transform: rotate(45deg);
    }

    .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 0.4s ease;
      color: #555;
      font-size: 1em;
      background-color: #fff;
    }

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

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-sunwin__hero-title {
        font-size: 2.4em;
      }

      .page-sunwin__hero-subtitle {
        font-size: 1.1em;
      }

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

    @media (max-width: 768px) {
      .page-sunwin__hero-section {
        padding-top: 10px; /* Adjust for mobile fixed header */
        min-height: 300px;
      }

      .page-sunwin__hero-title {
        font-size: 2em;
        margin-bottom: 15px;
      }

      .page-sunwin__hero-subtitle {
        font-size: 1em;
        margin-bottom: 25px;
      }

      .page-sunwin__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-sunwin__section {
        padding: 40px 0;
      }

      .page-sunwin__section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
      }

      .page-sunwin__text-content {
        font-size: 1em;
      }

      .page-sunwin__info-grid,
      .page-sunwin__game-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-sunwin__info-card,
      .page-sunwin__game-card {
        margin: 0 auto;
        max-width: 95%;
        width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-sunwin__info-card-icon {
        width: 80px;
        height: 80px;
      }

      .page-sunwin__info-card-title {
        font-size: 1.3em;
      }

      .page-sunwin__game-card-image {
        height: 150px;
      }

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

      .page-sunwin__floating-promo-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 0.9em;
      }

      .page-sunwin__faq-list {
        margin-top: 30px;
        max-width: 95%;
      }

      .page-sunwin__faq-question {
        padding: 15px 10px;
      }

      .page-sunwin__faq-question h3 {
        font-size: 1.1em;
      }

      .page-sunwin__faq-toggle {
        font-size: 1.5em;
      }

      .page-sunwin__faq-answer {
        padding: 15px 10px !important;
      }

      .page-sunwin__container {
        padding: 0 10px;
      }
    }

    @media (max-width: 480px) {
      .page-sunwin__hero-title {
        font-size: 1.8em;
      }

      .page-sunwin__hero-subtitle {
        font-size: 0.9em;
      }

      .page-sunwin__section-title {
        font-size: 1.6em;
      }

      .page-sunwin__floating-promo-button {
        font-size: 0.8em;
        padding: 10px 15px;
        bottom: 10px;
        right: 10px;
      }
    }