/* Tổng thể */
    .page-999oklink {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #e0e0e0;
      background-color: #1a1a2e;
      line-height: 1.6;
    }

    /* Tiêu đề */
    .page-999oklink h1,
    .page-999oklink h2,
    .page-999oklink h3 {
      color: #e94560;
      margin-bottom: 15px;
      font-weight: 700;
    }

    .page-999oklink h1 {
      font-size: 2.5em;
      text-align: center;
      padding-top: 20px; /* Adjust for fixed header */
    }

    .page-999oklink h2 {
      font-size: 2em;
      border-bottom: 2px solid #533483;
      padding-bottom: 10px;
      margin-top: 40px;
    }

    .page-999oklink h3 {
      font-size: 1.5em;
      color: #0f3460;
    }

    /* Các phần */
    .page-999oklink__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: #16213e;
      border-radius: 8px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .page-999oklink__section--dark {
      background-color: #0f3460;
      color: #f0f0f0;
    }

    /* Hero Section */
    .page-999oklink__hero-section {
      background: linear-gradient(135deg, #1a1a2e, #0f3460);
      text-align: center;
      padding: 10px 20px 40px; /* padding-top for fixed header, then normal padding */
      position: relative;
      overflow: hidden;
      border-radius: 0 0 15px 15px;
      margin-bottom: 20px;
    }

    .page-999oklink__hero-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    .page-999oklink__hero-image {
      display: block;
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
      margin: 0 auto;
    }

    .page-999oklink__hero-content {
      position: relative;
      z-index: 2;
    }

    .page-999oklink__hero-slogan {
      font-size: 1.2em;
      color: #a0a0a0;
      margin-top: 10px;
      margin-bottom: 30px;
    }

    /* Nút */
    .page-999oklink__button {
      display: inline-block;
      background-color: #e94560;
      color: #fff;
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-999oklink__button:hover {
      background-color: #ff6a81;
      transform: translateY(-2px);
    }

    .page-999oklink__button--secondary {
      background-color: #533483;
    }

    .page-999oklink__button--secondary:hover {
      background-color: #6a4a9c;
    }

    /* Nút nổi đăng nhập */
    .page-999oklink__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: #e94560;
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      white-space: nowrap;
      text-align: center;
      animation: pulse 2s infinite;
      border: none;
      cursor: pointer;
    }

    .page-999oklink__floating-button:hover {
      background-color: #ff6a81;
      transform: translateX(-50%) translateY(-3px);
    }

    @keyframes pulse {
      0% {
        box-shadow: 0 0 0 0 rgba(233, 69, 96, 0.7);
      }
      70% {
        box-shadow: 0 0 0 15px rgba(233, 69, 96, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(233, 69, 96, 0);
      }
    }

    /* Lưới trò chơi */
    .page-999oklink__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-999oklink__game-card {
      background-color: #0f3460;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-999oklink__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-999oklink__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-999oklink__game-card-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 10px 10px 0 0;
    }

    .page-999oklink__game-card-content {
      padding: 15px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-999oklink__game-card-title {
      font-size: 1.3em;
      color: #e94560;
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-999oklink__game-card-description {
      font-size: 0.9em;
      color: #a0a0a0;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    /* Lưới nhà cung cấp */
    .page-999oklink__provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
      justify-items: center;
    }

    .page-999oklink__provider-logo-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      background-color: #2c3e50;
      border-radius: 8px;
      padding: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
    }

    .page-999oklink__provider-logo-wrapper:hover {
      transform: scale(1.05);
    }

    .page-999oklink__provider-logo {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Hướng dẫn */
    .page-999oklink__guide-steps {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-999oklink__guide-item {
      background-color: #0f3460;
      padding: 20px;
      margin-bottom: 15px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .page-999oklink__guide-step-number {
      font-size: 1.8em;
      font-weight: bold;
      color: #e94560;
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid #e94560;
      border-radius: 50%;
    }

    .page-999oklink__guide-content {
      flex-grow: 1;
    }

    .page-999oklink__guide-title {
      color: #e0e0e0;
      margin-bottom: 5px;
      font-size: 1.2em;
      font-weight: 600;
    }

    .page-999oklink__guide-description {
      color: #a0a0a0;
      font-size: 0.95em;
    }

    /* FAQ */
    .page-999oklink__faq-list {
      margin-top: 30px;
    }

    .page-999oklink__faq-item {
      background-color: #0f3460;
      margin-bottom: 10px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-999oklink__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #16213e;
      color: #e0e0e0;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-999oklink__faq-question:hover {
      background-color: #2c3e50;
    }

    .page-999oklink__faq-question h3 {
      margin: 0;
      color: #e0e0e0;
      font-size: 1.1em;
      font-weight: 600;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-999oklink__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: #e94560;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-999oklink__faq-item.active .page-999oklink__faq-toggle {
      transform: rotate(45deg); /* Change + to X or - */
    }

    .page-999oklink__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      color: #a0a0a0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.3s ease;
      font-size: 0.95em;
    }

    .page-999oklink__faq-item.active .page-999oklink__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Footer CTA */
    .page-999oklink__cta-footer {
      text-align: center;
      padding: 50px 20px;
      background: linear-gradient(90deg, #e94560, #ff6a81);
      border-radius: 15px 15px 0 0;
      color: #fff;
      margin-top: 40px;
    }

    .page-999oklink__cta-footer h2 {
      color: #fff;
      margin-bottom: 20px;
      border-bottom: none;
    }

    .page-999oklink__cta-footer p {
      font-size: 1.1em;
      margin-bottom: 30px;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .page-999oklink h1 {
        font-size: 2em;
        padding-top: 10px !important; /* Ensure mobile padding-top for fixed header */
      }

      .page-999oklink h2 {
        font-size: 1.7em;
        margin-top: 30px;
      }

      .page-999oklink h3 {
        font-size: 1.3em;
      }

      .page-999oklink__section {
        padding: 30px 15px;
      }

      .page-999oklink__hero-section {
        padding: 10px 15px 30px; /* Mobile padding-top for fixed header */
      }

      .page-999oklink__hero-slogan {
        font-size: 1em;
      }

      .page-999oklink__floating-button {
        width: calc(100% - 40px);
        font-size: 1.1em;
        padding: 12px 20px;
      }

      .page-999oklink__game-grid {
        grid-template-columns: 1fr;
      }

      .page-999oklink__provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }

      .page-999oklink__guide-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }

      .page-999oklink__guide-step-number {
        margin-bottom: 10px;
      }

      .page-999oklink__faq-question {
        padding: 12px 15px;
      }

      .page-999oklink__faq-question h3 {
        font-size: 1em;
      }

      .page-999oklink__faq-answer {
        padding: 15px 15px !important;
      }
      
      /* Image responsiveness for mobile */
      .page-999oklink__hero-image,
      .page-999oklink__game-card-image,
      .page-999oklink__provider-logo {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-999oklink__hero-image-wrapper,
      .page-999oklink__game-card-image-wrapper,
      .page-999oklink__provider-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }