:root {
      --page-ok365-primary-color: #0056b3; /* Dark blue for main elements */
      --page-ok365-secondary-color: #007bff; /* Lighter blue for accents */
      --page-ok365-accent-color: #ffc107; /* Yellow for highlights/buttons */
      --page-ok365-text-color: #333;
      --page-ok365-light-text-color: #f8f9fa;
      --page-ok365-bg-color: #f4f7f6;
      --page-ok365-card-bg: #ffffff;
      --page-ok365-border-color: #e0e0e0;
      --page-ok365-success-color: #28a745;
      --page-ok365-danger-color: #dc3545;
    }

    .page-ok365 {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      line-height: 1.6;
      color: var(--page-ok365-text-color);
      background-color: var(--page-ok365-bg-color);
      padding: 20px 0;
    }

    .page-ok365 .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-ok365 h1, .page-ok365 h2, .page-ok365 h3, .page-ok365 h4 {
      color: var(--page-ok365-primary-color);
      margin-bottom: 15px;
      font-weight: 700;
    }

    .page-ok365 h1 {
      font-size: 2.5em;
      text-align: center;
      margin-bottom: 30px;
    }

    .page-ok365 h2 {
      font-size: 2em;
      border-bottom: 2px solid var(--page-ok365-secondary-color);
      padding-bottom: 10px;
      margin-top: 40px;
    }

    .page-ok365 h3 {
      font-size: 1.5em;
      color: var(--page-ok365-secondary-color);
      margin-top: 30px;
    }

    .page-ok365 p {
      margin-bottom: 15px;
    }

    .page-ok365 a {
      color: var(--page-ok365-secondary-color);
      text-decoration: none;
    }

    .page-ok365 a:hover {
      text-decoration: underline;
      color: var(--page-ok365-primary-color);
    }

    .page-ok365 .btn {
      display: inline-block;
      padding: 12px 25px;
      border-radius: 5px;
      font-weight: bold;
      text-align: center;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
    }

    .page-ok365 .btn-primary {
      background-color: var(--page-ok365-accent-color);
      color: var(--page-ok365-text-color);
      border: none;
    }

    .page-ok365 .btn-primary:hover {
      background-color: #e0a800;
      transform: translateY(-2px);
    }

    .page-ok365 .btn-secondary {
      background-color: var(--page-ok365-secondary-color);
      color: var(--page-ok365-light-text-color);
      border: none;
    }

    .page-ok365 .btn-secondary:hover {
      background-color: var(--page-ok365-primary-color);
      transform: translateY(-2px);
    }

    .page-ok365 .hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('[GALLERY:hero:ok365,banner,trangchu]') no-repeat center center/cover;
      color: var(--page-ok365-light-text-color);
      padding: 80px 0;
      text-align: center;
      border-radius: 8px;
      margin-bottom: 40px;
    }

    .page-ok365 .hero-section h1 {
      color: var(--page-ok365-light-text-color);
      font-size: 3em;
      margin-bottom: 20px;
    }

    .page-ok365 .hero-section p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-ok365 .intro-section,
    .page-ok365 .features-section,
    .page-ok365 .guide-section,
    .page-ok365 .games-section,
    .page-ok365 .promo-section,
    .page-ok365 .faq-section,
    .page-ok365 .conclusion-section {
      background-color: var(--page-ok365-card-bg);
      padding: 30px;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 30px;
    }

    .page-ok365 .features-grid, .page-ok365 .games-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 20px;
    }

    .page-ok365 .feature-item, .page-ok365 .game-card {
      background-color: var(--page-ok365-bg-color);
      padding: 25px;
      border-radius: 8px;
      text-align: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
      transition: transform 0.2s ease;
    }

    .page-ok365 .feature-item:hover, .page-ok365 .game-card:hover {
      transform: translateY(-5px);
    }

    .page-ok365 .feature-item img, .page-ok365 .game-card img {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      object-fit: contain;
    }

    .page-ok365 .feature-item h3, .page-ok365 .game-card h3 {
      margin-top: 0;
      font-size: 1.3em;
      color: var(--page-ok365-primary-color);
    }

    .page-ok365 .guide-steps {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 20px;
    }

    .page-ok365 .guide-step {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      background-color: var(--page-ok365-bg-color);
      padding: 20px;
      border-radius: 8px;
    }

    .page-ok365 .guide-step .step-number {
      font-size: 2.5em;
      font-weight: bold;
      color: var(--page-ok365-accent-color);
      flex-shrink: 0;
    }

    .page-ok365 .guide-step .step-content h3 {
      margin-top: 0;
      color: var(--page-ok365-secondary-color);
    }

    .page-ok365 .game-card {
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-ok365 .game-card .game-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 15px;
      border-radius: 50%;
      background-color: var(--page-ok365-secondary-color);
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 2em;
      color: var(--page-ok365-light-text-color);
      font-weight: bold;
      overflow: hidden;
    }

    .page-ok365 .game-card .game-icon img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      margin-bottom: 0; /* Override default img margin */
    }

    .page-ok365 .game-card h3 {
      margin-bottom: 10px;
    }

    .page-ok365 .promo-card {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      background-color: var(--page-ok365-bg-color);
      padding: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
    }

    .page-ok365 .promo-card img {
      width: 150px;
      height: 150px;
      object-fit: contain;
      margin-bottom: 20px;
    }

    .page-ok365 .promo-card h3 {
      color: var(--page-ok365-accent-color);
      font-size: 1.8em;
      margin-bottom: 10px;
    }

    .page-ok365 .promo-card p {
      font-size: 1.1em;
      margin-bottom: 25px;
    }

    .page-ok365 .faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-ok365-border-color);
      border-radius: 5px;
      overflow: hidden;
    }

    .page-ok365 .faq-question {
      background-color: var(--page-ok365-secondary-color);
      color: var(--page-ok365-light-text-color);
      padding: 15px 20px;
      cursor: pointer;
      font-weight: bold;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .page-ok365 .faq-question:hover {
      background-color: var(--page-ok365-primary-color);
    }

    .page-ok365 .faq-answer {
      background-color: var(--page-ok365-card-bg);
      padding: 15px 20px;
      border-top: 1px solid var(--page-ok365-border-color);
      display: none;
    }

    .page-ok365 .faq-answer.active {
      display: block;
    }

    .page-ok365 .faq-question .arrow {
      transition: transform 0.3s ease;
    }

    .page-ok365 .faq-question.active .arrow {
      transform: rotate(180deg);
    }

    .page-ok365 .floating-cta {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-ok365-accent-color);
      color: var(--page-ok365-text-color);
      padding: 15px 25px;
      border-radius: 50px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
      font-weight: bold;
      text-decoration: none;
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .page-ok365 .floating-cta:hover {
      background-color: #e0a800;
      transform: scale(1.05);
    }

    @media (max-width: 768px) {
      .page-ok365 h1 {
        font-size: 2em;
      }
      .page-ok365 .hero-section {
        padding: 60px 0;
      }
      .page-ok365 .hero-section h1 {
        font-size: 2.5em;
      }
      .page-ok365 .features-grid, .page-ok365 .games-grid {
        grid-template-columns: 1fr;
      }
      .page-ok365 .guide-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
      .page-ok365 .guide-step .step-number {
        margin-bottom: 10px;
      }
      .page-ok365 .floating-cta {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 0.9em;
      }
    }