/* CSS cho trang ok9aalink.html */
    :root {
      --page-ok9aalink-primary-color: #007bff;
      --page-ok9aalink-secondary-color: #6c757d;
      --page-ok9aalink-accent-color: #28a745;
      --page-ok9aalink-text-color: #343a40;
      --page-ok9aalink-bg-light: #f8f9fa;
      --page-ok9aalink-bg-white: #ffffff;
      --page-ok9aalink-border-color: #dee2e6;
      --page-ok9aalink-shadow: rgba(0, 0, 0, 0.1);
    }

    .page-ok9aalink {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-ok9aalink-text-color);
      background-color: var(--page-ok9aalink-bg-light);
      padding: 20px 0;
    }

    .page-ok9aalink .page-ok9aalink-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-ok9aalink h1,
    .page-ok9aalink h2,
    .page-ok9aalink h3,
    .page-ok9aalink h4 {
      color: var(--page-ok9aalink-primary-color);
      margin-bottom: 15px;
      text-align: center;
    }
    
    .page-ok9aalink h1 {
      font-size: 2.5em;
      margin-top: 20px;
      margin-bottom: 30px;
      color: #0056b3; /* Darker blue for H1 */
    }

    .page-ok9aalink h2 {
      font-size: 2em;
      border-bottom: 2px solid var(--page-ok9aalink-primary-color);
      padding-bottom: 10px;
      margin-top: 40px;
      margin-bottom: 25px;
      color: #0069d9; /* Slightly darker blue for H2 */
    }

    .page-ok9aalink h3 {
      font-size: 1.5em;
      color: var(--page-ok9aalink-text-color);
      margin-top: 30px;
      margin-bottom: 15px;
      text-align: left; /* H3 can be left-aligned for sub-sections */
    }

    .page-ok9aalink p {
      margin-bottom: 1em;
    }

    .page-ok9aalink a {
      color: var(--page-ok9aalink-primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-ok9aalink a:hover {
      color: #0056b3;
      text-decoration: underline;
    }

    .page-ok9aalink .page-ok9aalink-button {
      display: inline-block;
      background-color: var(--page-ok9aalink-accent-color);
      color: #ffffff;
      padding: 12px 25px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
      margin-top: 20px;
    }

    .page-ok9aalink .page-ok9aalink-button:hover {
      background-color: #218838;
      transform: translateY(-2px);
    }

    .page-ok9aalink .page-ok9aalink-hero {
      background-color: var(--page-ok9aalink-primary-color);
      color: #ffffff;
      padding: 60px 0;
      text-align: center;
      margin-bottom: 40px;
      background-image: url('[GALLERY:banner:ok9aa,hero,background]');
      background-size: cover;
      background-position: center;
      position: relative;
    }
    
    .page-ok9aalink .page-ok9aalink-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5); /* Overlay to ensure text contrast */
        z-index: 0;
    }

    .page-ok9aalink .page-ok9aalink-hero .page-ok9aalink-container {
        position: relative;
        z-index: 1;
    }

    .page-ok9aalink .page-ok9aalink-hero h1 {
      color: #ffffff;
      font-size: 3.2em;
      margin-bottom: 15px;
    }

    .page-ok9aalink .page-ok9aalink-hero p {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #e9ecef;
    }

    .page-ok9aalink .page-ok9aalink-section {
      background-color: var(--page-ok9aalink-bg-white);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 12px var(--page-ok9aalink-shadow);
      margin-bottom: 30px;
    }

    .page-ok9aalink .page-ok9aalink-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-ok9aalink .page-ok9aalink-card {
      background-color: var(--page-ok9aalink-bg-light);
      border-radius: 8px;
      padding: 20px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      border: 1px solid var(--page-ok9aalink-border-color);
    }

    .page-ok9aalink .page-ok9aalink-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    }

    .page-ok9aalink .page-ok9aalink-card img {
      max-width: 80px;
      height: auto;
      margin-bottom: 15px;
    }

    .page-ok9aalink .page-ok9aalink-card h3 {
      font-size: 1.3em;
      margin-bottom: 10px;
      color: var(--page-ok9aalink-primary-color);
      text-align: center; /* Ensure card titles are centered */
    }

    .page-ok9aalink .page-ok9aalink-card p {
      font-size: 0.95em;
      color: var(--page-ok9aalink-secondary-color);
    }

    .page-ok9aalink .page-ok9aalink-list {
      list-style: none;
      padding: 0;
    }

    .page-ok9aalink .page-ok9aalink-list li {
      background-color: var(--page-ok9aalink-bg-light);
      margin-bottom: 10px;
      padding: 15px 20px;
      border-radius: 8px;
      border-left: 5px solid var(--page-ok9aalink-primary-color);
      display: flex;
      flex-direction: column; /* Changed to column for better content flow */
      align-items: flex-start; /* Align text to start */
    }

    .page-ok9aalink .page-ok9aalink-list li:last-child {
      margin-bottom: 0;
    }

    .page-ok9aalink .page-ok9aalink-list li strong {
      color: var(--page-ok9aalink-primary-color);
      margin-bottom: 5px; /* Add some space below strong tag */
      display: block; /* Make strong tag take full width */
    }

    .page-ok9aalink .page-ok9aalink-list li p {
        margin-bottom: 0; /* Remove extra margin from paragraphs inside list items */
    }

    .page-ok9aalink .page-ok9aalink-cta-banner {
      background-color: var(--page-ok9aalink-accent-color);
      color: #ffffff;
      text-align: center;
      padding: 40px 20px;
      border-radius: 10px;
      margin-top: 40px;
      margin-bottom: 40px;
      box-shadow: 0 4px 12px var(--page-ok9aalink-shadow);
    }

    .page-ok9aalink .page-ok9aalink-cta-banner h2 {
      color: #ffffff;
      font-size: 2.2em;
      margin-bottom: 15px;
      border-bottom: none;
      padding-bottom: 0;
    }

    .page-ok9aalink .page-ok9aalink-cta-banner p {
      font-size: 1.2em;
      margin-bottom: 25px;
      color: #e9ecef;
    }

    .page-ok9aalink .page-ok9aalink-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-ok9aalink .page-ok9aalink-step-item {
      flex: 1 1 280px; /* Allow items to grow/shrink, min width 280px */
      background-color: var(--page-ok9aalink-bg-white);
      padding: 25px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      text-align: center;
      border: 1px solid var(--page-ok9aalink-border-color);
      position: relative;
      padding-top: 70px; /* Space for the step number */
    }

    .page-ok9aalink .page-ok9aalink-step-item .step-number {
      position: absolute;
      top: -20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-ok9aalink-primary-color);
      color: #ffffff;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8em;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .page-ok9aalink .page-ok9aalink-step-item h3 {
      margin-top: 15px;
      margin-bottom: 10px;
      color: var(--page-ok9aalink-primary-color);
      text-align: center;
    }

    .page-ok9aalink .page-ok9aalink-game-category {
        text-align: center;
        margin-bottom: 20px;
    }

    .page-ok9aalink .page-ok9aalink-game-category img {
        max-width: 100%;
        height: 180px; /* Fixed height for consistency */
        object-fit: cover; /* Ensure images cover the area */
        border-radius: 8px;
        margin-bottom: 10px;
        transition: transform 0.3s ease;
    }

    .page-ok9aalink .page-ok9aalink-game-category img:hover {
        transform: scale(1.03);
    }

    .page-ok9aalink .page-ok9aalink-game-category h3 {
        font-size: 1.3em;
        margin-top: 10px;
        margin-bottom: 5px;
        color: var(--page-ok9aalink-text-color);
    }

    .page-ok9aalink .page-ok9aalink-game-category p {
        font-size: 0.9em;
        color: var(--page-ok9aalink-secondary-color);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-ok9aalink h1 {
        font-size: 2.2em;
      }

      .page-ok9aalink .page-ok9aalink-hero h1 {
        font-size: 2.5em;
      }

      .page-ok9aalink .page-ok9aalink-hero p {
        font-size: 1.1em;
      }

      .page-ok9aalink h2 {
        font-size: 1.8em;
      }

      .page-ok9aalink .page-ok9aalink-grid {
        grid-template-columns: 1fr;
      }

      .page-ok9aalink .page-ok9aalink-cta-banner h2 {
        font-size: 1.8em;
      }

      .page-ok9aalink .page-ok9aalink-cta-banner p {
        font-size: 1em;
      }
      
      .page-ok9aalink .page-ok9aalink-steps {
        flex-direction: column;
        align-items: center;
      }

      .page-ok9aalink .page-ok9aalink-step-item {
        max-width: 90%;
      }
    }

    @media (max-width: 480px) {
      .page-ok9aalink h1 {
        font-size: 1.8em;
      }

      .page-ok9aalink .page-ok9aalink-hero h1 {
        font-size: 2em;
      }

      .page-ok9aalink .page-ok9aalink-hero p {
        font-size: 1em;
      }

      .page-ok9aalink .page-ok9aalink-button {
        padding: 10px 20px;
        font-size: 1em;
      }
    }