:root {
      --page-king88vina-primary-color: #f7b32b; /* Vàng cam */
      --page-king88vina-secondary-color: #333333; /* Xám đậm */
      --page-king88vina-background-dark: #1a1a1a; /* Nền rất tối */
      --page-king88vina-text-light: #ffffff; /* Chữ trắng */
      --page-king88vina-text-dark: #333333; /* Chữ xám đậm */
      --page-king88vina-accent-color: #e74c3c; /* Đỏ nhấn */
      --page-king88vina-card-background: #2a2a2a; /* Nền thẻ */
      --page-king88vina-border-color: #444444; /* Màu viền */
      --page-king88vina-button-hover: #e0a020; /* Vàng cam đậm hơn khi hover */
    }

    .page-king88vina {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-king88vina-background-dark);
      color: var(--page-king88vina-text-light);
      line-height: 1.6;
      padding-bottom: 80px; /* Dành chỗ cho nút nổi */
    }

    .page-king88vina-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      text-align: center;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-king88vina-section-title {
      color: var(--page-king88vina-primary-color);
      font-size: 2.2em;
      margin-bottom: 25px;
      text-transform: uppercase;
      position: relative;
      padding-bottom: 10px;
    }

    .page-king88vina-section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-king88vina-primary-color);
      border-radius: 2px;
    }

    .page-king88vina-hero {
      padding-top: 150px; /* Vùng an toàn cho menu nổi */
      padding-bottom: 30px;
      text-align: center;
      background-color: #0d0d0d;
      position: relative;
    }

    .page-king88vina-hero-image-wrapper {
      display: flex;
      justify-content: center;
      align-items: center;
      margin-bottom: 20px;
    }

    .page-king88vina-hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    }

    .page-king88vina-hero-title {
      color: var(--page-king88vina-text-light);
      font-size: 2.8em;
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    }

    .page-king88vina-hero-subtitle {
      color: var(--page-king88vina-primary-color);
      font-size: 1.5em;
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    .page-king88vina-btn {
      display: inline-block;
      background-color: var(--page-king88vina-primary-color);
      color: var(--page-king88vina-text-dark);
      padding: 12px 25px;
      border-radius: 30px;
      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-king88vina-btn:hover {
      background-color: var(--page-king88vina-button-hover);
      transform: translateY(-2px);
    }

    .page-king88vina-floating-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      animation: page-king88vina-pulse 1.5s infinite;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    }

    @keyframes page-king88vina-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-king88vina-text-highlight {
      color: var(--page-king88vina-primary-color);
      font-weight: bold;
    }

    .page-king88vina-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }
    
    .page-king88vina-grid-games {
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }

    .page-king88vina-card {
      background-color: var(--page-king88vina-card-background);
      border-radius: 10px;
      padding: 15px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border: 1px solid var(--page-king88vina-border-color);
    }

    .page-king88vina-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5);
    }

    .page-king88vina-card-image {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 10px;
      object-fit: contain;
    }

    .page-king88vina-card-title {
      font-size: 1.1em;
      color: var(--page-king88vina-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-king88vina-card-link {
      color: var(--page-king88vina-text-light);
      text-decoration: none;
      transition: color 0.2s ease;
      display: block; /* Make the whole card clickable for better UX */
    }

    .page-king88vina-card-link:hover .page-king88vina-card-title {
      color: var(--page-king88vina-button-hover);
    }

    .page-king88vina-provider-logo {
      max-width: 80%;
      height: auto;
      object-fit: contain;
      filter: grayscale(10%) brightness(110%);
      transition: filter 0.3s ease;
    }

    .page-king88vina-provider-logo:hover {
      filter: grayscale(0%) brightness(120%);
    }

    .page-king88vina-about-content {
      text-align: left;
      font-size: 1.1em;
      color: #ccc;
    }

    .page-king88vina-about-content p {
      margin-bottom: 15px;
    }

    .page-king88vina-list {
      list-style: none;
      padding: 0;
      text-align: left;
      margin-top: 20px;
    }

    .page-king88vina-list li {
      background-color: var(--page-king88vina-card-background);
      margin-bottom: 10px;
      padding: 15px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
      border: 1px solid var(--page-king88vina-border-color);
    }

    .page-king88vina-list li::before {
      content: '✔';
      color: var(--page-king88vina-primary-color);
      font-weight: bold;
      font-size: 1.2em;
    }

    .page-king88vina-faq-item {
      background-color: var(--page-king88vina-card-background);
      border-radius: 8px;
      margin-bottom: 10px;
      border: 1px solid var(--page-king88vina-border-color);
    }

    .page-king88vina-faq-question {
      display: block;
      width: 100%;
      padding: 15px 20px;
      background-color: var(--page-king88vina-secondary-color);
      color: var(--page-king88vina-text-light);
      border: none;
      text-align: left;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      border-radius: 8px;
      transition: background-color 0.3s ease;
      position: relative;
    }

    .page-king88vina-faq-question:hover {
      background-color: #444;
    }

    .page-king88vina-faq-question::after {
      content: '+';
      position: absolute;
      right: 20px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 1.5em;
      transition: transform 0.3s ease;
    }

    .page-king88vina-faq-question.active::after {
      content: '-';
      transform: translateY(-50%) rotate(180deg);
    }

    .page-king88vina-faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease-out, padding 0.4s ease-out;
      color: #ccc;
      text-align: left;
    }

    .page-king88vina-faq-answer.active {
      max-height: 200px; /* Adjust based on content */
      padding: 15px 20px;
    }

    .page-king88vina-payment-method {
      display: flex;
      align-items: center;
      justify-content: center;
      background-color: var(--page-king88vina-card-background);
      border-radius: 8px;
      padding: 10px;
      height: 60px; /* Uniform height for logos */
      border: 1px solid var(--page-king88vina-border-color);
    }

    .page-king88vina-payment-logo {
      max-height: 100%;
      max-width: 90%;
      object-fit: contain;
      filter: grayscale(20%) brightness(110%);
    }

    @media (min-width: 600px) {
      .page-king88vina-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }
      .page-king88vina-grid-games {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      }
      .page-king88vina-hero-title {
        font-size: 3.5em;
      }
      .page-king88vina-hero-subtitle {
        font-size: 1.8em;
      }
      .page-king88vina-section-title {
        font-size: 2.5em;
      }
    }

    @media (min-width: 900px) {
      .page-king88vina-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
      .page-king88vina-grid-games {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      }
      .page-king88vina-section {
        padding: 40px 30px;
      }
      .page-king88vina-hero {
        padding-top: 180px; /* Vùng an toàn lớn hơn cho desktop */
        padding-bottom: 50px;
      }
    }