:root {
      --page-sunwun-primary-color: #f39c12; /* Cam cho các điểm nhấn */
      --page-sunwun-secondary-color: #c0392b; /* Đỏ cho các hành động quan trọng */
      --page-sunwun-background-dark: #1a1a2e; /* Xanh tím đậm */
      --page-sunwun-background-light: #2c2c44; /* Xanh tím đậm nhạt hơn */
      --page-sunwun-text-light: #e0e0e0; /* Màu chữ sáng */
      --page-sunwun-text-dark: #333333; /* Màu chữ tối cho nút */
      --page-sunwun-border-color: #3e3e5c; /* Màu viền */
      --page-sunwun-shadow-color: rgba(0, 0, 0, 0.3); /* Màu đổ bóng */
    }

    .page-sunwun {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: var(--page-sunwun-text-light);
      background-color: var(--page-sunwun-background-dark);
      line-height: 1.6;
      overflow-x: hidden;
      padding-bottom: 80px; /* Khoảng trống cho nút cố định */
    }

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

    .page-sunwun-section:nth-of-type(even) {
      background-color: var(--page-sunwun-background-light);
    }

    .page-sunwun-h1, .page-sunwun-h2, .page-sunwun-h3 {
      color: var(--page-sunwun-primary-color);
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-sunwun-h1 {
      font-size: 2.5em;
      margin-top: 20px;
    }
    .page-sunwun-h2 {
      font-size: 2em;
    }
    .page-sunwun-h3 {
      font-size: 1.5em;
      color: var(--page-sunwun-text-light); /* Tiêu đề phụ có thể nhạt hơn */
    }

    .page-sunwun-p {
      margin-bottom: 15px;
      font-size: 1.1em;
    }

    .page-sunwun-btn {
      display: inline-block;
      background-color: var(--page-sunwun-primary-color);
      color: var(--page-sunwun-text-dark);
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      margin: 10px;
      box-shadow: 0 4px 10px var(--page-sunwun-shadow-color);
      border: none;
      cursor: pointer;
    }

    .page-sunwun-btn:hover {
      background-color: #e67e22; /* Cam đậm hơn một chút */
      transform: translateY(-2px);
    }

    .page-sunwun-btn-secondary {
      background-color: var(--page-sunwun-secondary-color);
      color: var(--page-sunwun-text-light);
    }

    .page-sunwun-btn-secondary:hover {
      background-color: #a93226; /* Đỏ đậm hơn một chút */
    }

    /* Phần Banner */
    .page-sunwun-banner {
      background-color: var(--page-sunwun-background-dark);
      padding: 0;
      position: relative;
      overflow: hidden;
    }

    .page-sunwun-banner-image-container {
      width: 100%;
      max-height: 400px; /* Giới hạn chiều cao banner */
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-sunwun-banner-image {
      width: 100%;
      height: auto;
      object-fit: cover;
      display: block;
    }

    .page-sunwun-banner-content {
      position: relative;
      padding: 20px;
      text-align: center;
      z-index: 10;
      max-width: 900px;
      margin: 0 auto;
    }
    
    @media (min-width: 768px) {
      .page-sunwun-banner-image-container {
        max-height: 500px;
      }
    }

    /* Nút Đăng nhập/Đăng ký nổi */
    .page-sunwun-floating-btn {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background-color: var(--page-sunwun-secondary-color);
      color: var(--page-sunwun-text-light);
      text-align: center;
      padding: 15px 0;
      font-size: 1.2em;
      font-weight: bold;
      box-shadow: 0 -4px 15px var(--page-sunwun-shadow-color);
      z-index: 1000;
      display: flex;
      justify-content: center;
      align-items: center;
      text-decoration: none;
      transition: background-color 0.3s ease;
    }

    .page-sunwun-floating-btn:hover {
      background-color: #a93226;
    }

    /* Danh mục trò chơi */
    .page-sunwun-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-sunwun-game-card {
      background-color: var(--page-sunwun-background-light);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 6px 15px var(--page-sunwun-shadow-color);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--page-sunwun-border-color);
    }

    .page-sunwun-game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    }

    .page-sunwun-game-card-image {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--page-sunwun-border-color);
    }

    .page-sunwun-game-card-content {
      padding: 20px;
    }

    .page-sunwun-game-card-title {
      font-size: 1.3em;
      margin-bottom: 10px;
      color: var(--page-sunwun-primary-color);
      text-decoration: none; /* Cho các liên kết */
    }
    
    .page-sunwun-game-card-title a {
        color: var(--page-sunwun-primary-color);
        text-decoration: none;
    }
    .page-sunwun-game-card-title a:hover {
        text-decoration: underline;
    }

    .page-sunwun-game-card-description {
      font-size: 0.95em;
      color: var(--page-sunwun-text-light);
    }

    /* Phần Tải xuống */
    .page-sunwun-download-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-sunwun-download-item {
      background-color: var(--page-sunwun-background-light);
      padding: 25px;
      border-radius: 12px;
      box-shadow: 0 4px 10px var(--page-sunwun-shadow-color);
      flex: 1 1 300px;
      max-width: 450px;
      text-align: center;
      border: 1px solid var(--page-sunwun-border-color);
    }

    .page-sunwun-qr-code {
      width: 150px;
      height: 150px;
      margin: 20px auto;
      display: block;
      border: 5px solid var(--page-sunwun-primary-color);
      border-radius: 8px;
    }

    .page-sunwun-list {
      list-style: none;
      padding: 0;
      text-align: left;
      margin-top: 20px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-sunwun-list-item {
      background-color: var(--page-sunwun-background-light);
      border-radius: 8px;
      margin-bottom: 10px;
      padding: 15px 20px;
      display: flex;
      align-items: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      border-left: 5px solid var(--page-sunwun-primary-color);
    }

    .page-sunwun-list-item::before {
      content: '✔';
      color: var(--page-sunwun-primary-color);
      font-weight: bold;
      margin-right: 10px;
    }

    /* Khuyến mãi */
    .page-sunwun-promo-card {
      background-color: var(--page-sunwun-background-light);
      padding: 25px;
      border-radius: 12px;
      margin-bottom: 20px;
      box-shadow: 0 4px 10px var(--page-sunwun-shadow-color);
      border: 1px solid var(--page-sunwun-border-color);
      text-align: left;
    }

    .page-sunwun-promo-card-title {
      color: var(--page-sunwun-primary-color);
      font-size: 1.4em;
      margin-bottom: 10px;
    }

    /* Điều chỉnh Responsive */
    @media (max-width: 768px) {
      .page-sunwun-h1 {
        font-size: 2em;
      }
      .page-sunwun-h2 {
        font-size: 1.7em;
      }
      .page-sunwun-btn {
        padding: 10px 20px;
        font-size: 0.9em;
      }
      .page-sunwun-game-grid {
        grid-template-columns: 1fr;
      }
      .page-sunwun-download-item {
        flex: 1 1 100%;
        max-width: 100%;
      }
    }