/* CSS Styles for TK88 page */
    :root {
      --page-tk88-primary-color: #e44d26; /* Màu chủ đạo: đỏ cam */
      --page-tk88-secondary-color: #333; /* Màu văn bản chính */
      --page-tk88-accent-color: #f7b32b; /* Màu điểm nhấn: vàng đồng cho khuyến mãi */
      --page-tk88-background-light: #f9f9f9; /* Nền sáng */
      --page-tk88-background-dark: #2c3e50; /* Nền tối cho các phần tương phản */
      --page-tk88-text-light: #fff; /* Văn bản trên nền tối */
      --page-tk88-text-dark: #333; /* Văn bản trên nền sáng */
      --page-tk88-border-color: #ddd; /* Màu đường viền */
    }

    .page-tk88 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-tk88-text-dark);
      background-color: var(--page-tk88-background-light);
    }

    .page-tk88-section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    }
    .page-tk88-section-dark {
      background-color: var(--page-tk88-background-dark);
      color: var(--page-tk88-text-light);
      padding: 40px 20px;
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-tk88-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-tk88-hero {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:tk88,banner,casino,jackpot]') no-repeat center center/cover;
      color: var(--page-tk88-text-light);
      text-align: center;
      padding: 80px 20px;
      border-radius: 8px;
      margin-bottom: 20px;
    }

    .page-tk88-hero h1 {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-tk88-accent-color);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .page-tk88-hero p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-tk88-btn {
      display: inline-block;
      background-color: var(--page-tk88-primary-color);
      color: var(--page-tk88-text-light);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      font-size: 1.1em;
      border: none;
      cursor: pointer;
    }

    .page-tk88-btn:hover {
      background-color: #c0392b; /* Màu đỏ cam đậm hơn khi hover */
    }

    .page-tk88-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .page-tk88-card {
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      padding: 25px;
      text-align: center;
      transition: transform 0.3s ease;
      color: var(--page-tk88-text-dark); /* Đảm bảo văn bản màu tối */
    }

    .page-tk88-card:hover {
      transform: translateY(-5px);
    }

    .page-tk88-card img {
      max-width: 100px;
      margin-bottom: 15px;
      height: auto;
    }

    .page-tk88-card h3 {
      font-size: 1.5em;
      margin-bottom: 10px;
      color: var(--page-tk88-primary-color);
    }
    .page-tk88-card h3 a {
        color: var(--page-tk88-primary-color); /* Màu liên kết trong thẻ */
        text-decoration: none;
    }
    .page-tk88-card h3 a:hover {
        text-decoration: underline;
    }

    .page-tk88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-tk88-game-item {
      background-color: var(--page-tk88-background-dark);
      color: var(--page-tk88-text-light);
      border-radius: 8px;
      overflow: hidden;
      text-align: center;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      transition: transform 0.3s ease;
    }

    .page-tk88-game-item:hover {
      transform: translateY(-5px);
    }

    .page-tk88-game-item img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-tk88-game-item h4 {
      padding: 15px 10px;
      font-size: 1.1em;
      margin: 0;
      background-color: rgba(0,0,0,0.3);
    }
    .page-tk88-game-item h4 a {
        color: var(--page-tk88-text-light); /* Đảm bảo màu văn bản liên kết hiển thị rõ */
        text-decoration: none;
    }
    .page-tk88-game-item h4 a:hover {
        text-decoration: underline;
    }

    .page-tk88-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 25px;
      margin-top: 30px;
    }

    .page-tk88-step-item {
      flex: 1 1 calc(33% - 25px); /* Cho 3 cột */
      background-color: #f0f0f0;
      padding: 20px;
      border-radius: 8px;
      text-align: center;
      min-width: 280px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    }
    .page-tk88-step-item:nth-child(even) {
      background-color: #e8e8e8;
    }

    .page-tk88-step-item span {
      display: block;
      font-size: 2.5em;
      color: var(--page-tk88-primary-color);
      font-weight: bold;
      margin-bottom: 10px;
    }

    .page-tk88-step-item h3 {
      font-size: 1.3em;
      margin-bottom: 10px;
      color: var(--page-tk88-secondary-color);
    }

    .page-tk88-promo-banner {
      background-color: var(--page-tk88-accent-color);
      color: var(--page-tk88-text-dark);
      padding: 25px;
      text-align: center;
      border-radius: 8px;
      margin-top: 30px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }

    .page-tk88-promo-banner h2 {
      font-size: 2em;
      margin-bottom: 15px;
      color: var(--page-tk88-background-dark);
    }
    .page-tk88-promo-banner p {
        font-size: 1.1em;
        margin-bottom: 20px;
    }

    .page-tk88-faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-tk88-border-color);
      border-radius: 8px;
      overflow: hidden;
    }

    .page-tk88-faq-question {
      background-color: #f0f0f0;
      padding: 15px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
      color: var(--page-tk88-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-tk88-faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-tk88-faq-answer {
      padding: 15px 20px;
      background-color: #fff;
      border-top: 1px solid var(--page-tk88-border-color);
      display: none;
      color: var(--page-tk88-text-dark); /* Đảm bảo văn bản màu tối */
    }

    .page-tk88-faq-answer p {
        margin-bottom: 10px;
    }
    .page-tk88-faq-answer p:last-child {
        margin-bottom: 0;
    }

    .page-tk88-faq-question span.page-tk88-icon {
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }
    .page-tk88-faq-question.active span.page-tk88-icon {
      transform: rotate(180deg);
    }

    .page-tk88-floating-ad {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background-color: var(--page-tk88-primary-color);
        color: var(--page-tk88-text-light);
        padding: 15px 20px;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        z-index: 1000;
        text-align: center;
        max-width: 250px;
        display: none; /* Ẩn theo mặc định, sẽ hiển thị bằng JS */
    }
    .page-tk88-floating-ad h3 {
        margin-top: 0;
        font-size: 1.2em;
        margin-bottom: 10px;
        color: var(--page-tk88-accent-color);
    }
    .page-tk88-floating-ad p {
        margin-bottom: 15px;
    }
    .page-tk88-floating-ad .page-tk88-btn {
        background-color: var(--page-tk88-accent-color);
        color: var(--page-tk88-background-dark);
        padding: 8px 15px;
        font-size: 0.9em;
    }
    .page-tk88-floating-ad .page-tk88-btn:hover {
        background-color: #ffd700; /* Màu vàng đậm hơn khi hover */
    }
    .page-tk88-close-ad {
        position: absolute;
        top: 5px;
        right: 10px;
        color: var(--page-tk88-text-light);
        font-size: 1.5em;
        cursor: pointer;
        background: none;
        border: none;
        line-height: 1;
    }

    /* Điều chỉnh Responsive */
    @media (max-width: 768px) {
      .page-tk88-hero h1 {
        font-size: 2em;
      }
      .page-tk88-hero p {
        font-size: 1em;
      }
      .page-tk88-grid, .page-tk88-game-grid {
        grid-template-columns: 1fr;
      }
      .page-tk88-step-item {
        flex: 1 1 100%;
      }
      .page-tk88-floating-ad {
          left: 10px;
          right: 10px;
          max-width: none;
      }
    }