:root {
      --page-sunwin-primary-color: #f7b32b; /* Vàng cam */
      --page-sunwin-secondary-color: #333333; /* Đen xám */
      --page-sunwin-accent-color: #e74c3c; /* Đỏ */
      --page-sunwin-background-light: #f9f9f9;
      --page-sunwin-background-dark: #2c3e50; /* Xanh đậm */
      --page-sunwin-text-color-light: #f9f9f9;
      --page-sunwin-text-color-dark: #333333;
      --page-sunwin-border-color: #ddd;
      --page-sunwin-button-hover: #e0a020;
    }

    .page-sunwin {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-sunwin-text-color-dark);
      background-color: var(--page-sunwin-background-light);
      padding-bottom: 80px; /* Để chừa chỗ cho floating ad */
    }

    .page-sunwin .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-sunwin .hero-section {
      background: linear-gradient(135deg, var(--page-sunwin-background-dark) 0%, #1a252f 100%);
      color: var(--page-sunwin-text-color-light);
      padding: 60px 20px;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-bottom: 5px solid var(--page-sunwin-primary-color);
    }

    .page-sunwin .hero-section h1 {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-sunwin-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }
    
    .page-sunwin .hero-section h1 a {
        color: var(--page-sunwin-primary-color);
        text-decoration: none;
    }

    .page-sunwin .hero-section p {
      font-size: 1.2em;
      max-width: 800px;
      margin: 0 auto 30px;
      opacity: 0.9;
    }

    .page-sunwin .btn-primary {
      display: inline-block;
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-secondary-color);
      padding: 15px 30px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-sunwin .btn-primary:hover {
      background-color: var(--page-sunwin-button-hover);
      transform: translateY(-2px);
    }

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

    .page-sunwin .section-title::after {
      content: '';
      display: block;
      width: 80px;
      height: 4px;
      background-color: var(--page-sunwin-primary-color);
      margin: 15px auto 0;
      border-radius: 2px;
    }

    .page-sunwin .content-section {
      background-color: #ffffff;
      padding: 40px 20px;
      margin-bottom: 30px;
      border-radius: 10px;
      box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    }

    .page-sunwin .content-section h2 {
      font-size: 1.8em;
      color: var(--page-sunwin-primary-color);
      margin-bottom: 20px;
      border-left: 5px solid var(--page-sunwin-accent-color);
      padding-left: 15px;
    }
    
    .page-sunwin .content-section h2 a {
        color: var(--page-sunwin-primary-color);
        text-decoration: none;
    }

    .page-sunwin .content-section h3 {
      font-size: 1.4em;
      color: var(--page-sunwin-secondary-color);
      margin-top: 30px;
      margin-bottom: 15px;
    }
    
    .page-sunwin .content-section h3 a {
        color: var(--page-sunwin-secondary-color);
        text-decoration: none;
    }

    .page-sunwin .content-section p {
      margin-bottom: 15px;
      color: var(--page-sunwin-text-color-dark);
    }

    .page-sunwin .content-section ul {
      list-style-type: disc;
      padding-left: 25px;
      margin-bottom: 15px;
    }

    .page-sunwin .content-section li {
      margin-bottom: 8px;
      color: var(--page-sunwin-text-color-dark);
    }
    
    .page-sunwin .content-section li a {
        color: var(--page-sunwin-secondary-color);
        text-decoration: underline;
    }

    .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-background-dark);
      color: var(--page-sunwin-text-color-light);
      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;
      text-align: center;
      display: flex;
      flex-direction: column;
    }

    .page-sunwin .game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }

    .page-sunwin .game-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }

    .page-sunwin .game-card h4 {
      font-size: 1.3em;
      margin: 15px 10px;
      color: var(--page-sunwin-primary-color);
      flex-grow: 1;
    }
    
    .page-sunwin .game-card h4 a {
        color: var(--page-sunwin-primary-color);
        text-decoration: none;
    }

    .page-sunwin .game-card p {
      font-size: 0.95em;
      margin: 0 15px 15px;
      opacity: 0.8;
    }

    .page-sunwin .cta-banner {
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-secondary-color);
      padding: 30px 20px;
      text-align: center;
      border-radius: 10px;
      margin-top: 40px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-sunwin .cta-banner h2 {
      color: var(--page-sunwin-secondary-color);
      font-size: 2em;
      margin-bottom: 20px;
    }

    .page-sunwin .cta-banner .btn-secondary {
      background-color: var(--page-sunwin-accent-color);
      color: var(--page-sunwin-text-color-light);
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      transition: background-color 0.3s ease;
    }

    .page-sunwin .cta-banner .btn-secondary:hover {
      background-color: #c0392b;
    }

    .page-sunwin .floating-ad {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background-color: var(--page-sunwin-accent-color);
      color: var(--page-sunwin-text-color-light);
      padding: 15px 20px;
      text-align: center;
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-wrap: wrap;
    }

    .page-sunwin .floating-ad p {
      margin: 0 15px 0 0;
      font-size: 1.1em;
      font-weight: bold;
    }

    .page-sunwin .floating-ad .btn-ad {
      background-color: var(--page-sunwin-primary-color);
      color: var(--page-sunwin-secondary-color);
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-sunwin .floating-ad .btn-ad:hover {
      background-color: var(--page-sunwin-button-hover);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-sunwin .hero-section h1 {
        font-size: 2em;
      }

      .page-sunwin .hero-section p {
        font-size: 1em;
      }

      .page-sunwin .section-title {
        font-size: 1.8em;
      }

      .page-sunwin .content-section h2 {
        font-size: 1.5em;
      }

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

      .page-sunwin .floating-ad {
        flex-direction: column;
        padding: 10px;
      }

      .page-sunwin .floating-ad p {
        margin: 0 0 10px 0;
      }
    }

    @media (max-width: 480px) {
        .page-sunwin .hero-section {
            padding: 40px 15px;
        }
        .page-sunwin .hero-section h1 {
            font-size: 1.8em;
        }
        .page-sunwin .btn-primary {
            padding: 12px 25px;
            font-size: 1em;
        }
        .page-sunwin .content-section {
            padding: 20px 15px;
        }
        .page-sunwin .section-title {
            font-size: 1.6em;
            margin-bottom: 25px;
        }
        .page-sunwin .content-section h2 {
            font-size: 1.3em;
        }
        .page-sunwin .cta-banner h2 {
            font-size: 1.5em;
        }
        .page-sunwin .cta-banner .btn-secondary {
            padding: 10px 20px;
        }
    }