/* CSS cho trang kubet */
    :root {
      --page-kubet-primary-color: #007bff; /* Xanh dương */
      --page-kubet-secondary-color: #6c757d; /* Xám */
      --page-kubet-accent-color: #ffc107; /* Vàng */
      --page-kubet-background-light: #f8f9fa; /* Nền sáng */
      --page-kubet-text-dark: #212529; /* Chữ tối */
      --page-kubet-text-light: #ffffff; /* Chữ sáng */
      --page-kubet-border-color: #dee2e6; /* Màu viền */
      --page-kubet-success-color: #28a745; /* Xanh lá */
      --page-kubet-danger-color: #dc3545; /* Đỏ */
    }

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

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

    .page-kubet-hero {
      background: linear-gradient(135deg, var(--page-kubet-primary-color) 0%, #0056b3 100%);
      color: var(--page-kubet-text-light);
      padding: 60px 20px;
      text-align: center;
      border-radius: 8px;
      margin-bottom: 40px;
      position: relative;
      overflow: hidden;
    }
    .page-kubet-hero::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: rgba(255, 255, 255, 0.05);
      transform: rotate(45deg);
      pointer-events: none;
    }

    .page-kubet-hero h1 {
      font-size: 2.8em;
      margin-bottom: 20px;
      font-weight: 700;
      color: var(--page-kubet-text-light); /* Đảm bảo độ tương phản */
    }

    .page-kubet-hero p {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: var(--page-kubet-text-light); /* Đảm bảo độ tương phản */
    }

    .page-kubet-hero-actions {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .page-kubet-btn {
      display: inline-block;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: all 0.3s ease;
      text-align: center;
      white-space: nowrap;
      color: var(--page-kubet-text-light); /* Đảm bảo độ tương phản */
    }

    .page-kubet-btn-primary {
      background-color: var(--page-kubet-accent-color);
      color: var(--page-kubet-text-dark); /* Đảm bảo độ tương phản */
      border: 2px solid var(--page-kubet-accent-color);
    }
    .page-kubet-btn-primary:hover {
      background-color: #e0a800;
      border-color: #e0a800;
      transform: translateY(-3px);
    }

    .page-kubet-btn-secondary {
      background-color: transparent;
      border: 2px solid var(--page-kubet-text-light);
      color: var(--page-kubet-text-light); /* Đảm bảo độ tương phản */
    }
    .page-kubet-btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.1);
      transform: translateY(-3px);
    }

    .page-kubet-section {
      background-color: var(--page-kubet-text-light);
      padding: 40px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .page-kubet-section h2 {
      font-size: 2em;
      color: var(--page-kubet-primary-color);
      margin-bottom: 25px;
      text-align: center;
      position: relative;
      padding-bottom: 10px;
    }
    .page-kubet-section h2::after {
      content: '';
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: 0;
      width: 60px;
      height: 4px;
      background-color: var(--page-kubet-accent-color);
      border-radius: 2px;
    }

    .page-kubet-section h3 {
      font-size: 1.5em;
      color: var(--page-kubet-text-dark);
      margin-top: 30px;
      margin-bottom: 15px;
      border-left: 5px solid var(--page-kubet-accent-color);
      padding-left: 10px;
    }

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

    .page-kubet-card {
      background-color: var(--page-kubet-background-light);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      transition: transform 0.3s ease;
      border: 1px solid var(--page-kubet-border-color);
    }
    .page-kubet-card:hover {
      transform: translateY(-5px);
    }

    .page-kubet-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }

    .page-kubet-card-content {
      padding: 20px;
    }

    .page-kubet-card-content h4 {
      font-size: 1.25em;
      margin-bottom: 10px;
      color: var(--page-kubet-primary-color);
    }

    .page-kubet-card-content p {
      font-size: 0.95em;
      color: var(--page-kubet-secondary-color);
      margin-bottom: 15px;
    }

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

    .page-kubet-list li {
      margin-bottom: 10px;
      padding-left: 25px;
      position: relative;
      font-size: 1.05em;
    }
    .page-kubet-list li::before {
      content: '✓';
      color: var(--page-kubet-success-color);
      position: absolute;
      left: 0;
      font-weight: bold;
    }

    .page-kubet-step-list {
      counter-reset: step-counter;
      list-style: none;
      padding-left: 0;
    }

    .page-kubet-step-list li {
      counter-increment: step-counter;
      margin-bottom: 15px;
      padding-left: 40px;
      position: relative;
      font-size: 1.05em;
    }
    .page-kubet-step-list li::before {
      content: counter(step-counter);
      position: absolute;
      left: 0;
      top: 0;
      background-color: var(--page-kubet-primary-color);
      color: var(--page-kubet-text-light);
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 0.9em;
    }

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

    .page-kubet-faq-question {
      background-color: #e9ecef;
      padding: 15px 20px;
      cursor: pointer;
      font-weight: bold;
      color: var(--page-kubet-text-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .page-kubet-faq-question::after {
      content: '+';
      font-size: 1.2em;
      transition: transform 0.3s ease;
    }
    .page-kubet-faq-question.active::after {
      content: '-';
      transform: rotate(180deg);
    }

    .page-kubet-faq-answer {
      padding: 15px 20px;
      background-color: var(--page-kubet-background-light);
      border-top: 1px solid var(--page-kubet-border-color);
      display: none;
      color: var(--page-kubet-secondary-color);
    }
    .page-kubet-faq-answer p {
      margin-bottom: 0;
    }

    .page-kubet-promotion-banner {
      background: linear-gradient(90deg, var(--page-kubet-danger-color) 0%, #dc3545 100%);
      color: var(--page-kubet-text-light);
      padding: 20px;
      text-align: center;
      border-radius: 8px;
      margin-top: 40px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }
    .page-kubet-promotion-banner h3 {
      color: var(--page-kubet-text-light);
      font-size: 1.8em;
      margin-bottom: 15px;
    }
    .page-kubet-promotion-banner p {
      font-size: 1.1em;
      margin-bottom: 20px;
    }
    .page-kubet-promotion-banner .page-kubet-btn {
      background-color: var(--page-kubet-accent-color);
      color: var(--page-kubet-text-dark);
      border: none;
      padding: 12px 25px;
    }
    .page-kubet-promotion-banner .page-kubet-btn:hover {
      background-color: #e0a800;
    }

    .page-kubet-floating-promo {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background-color: var(--page-kubet-danger-color);
      color: var(--page-kubet-text-light);
      padding: 10px 15px;
      text-align: center;
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
      z-index: 1000;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .page-kubet-floating-promo p {
      margin: 0;
      font-size: 1em;
      flex-grow: 1;
      text-align: left;
    }
    .page-kubet-floating-promo .page-kubet-btn {
      padding: 8px 15px;
      font-size: 0.9em;
      border-radius: 5px;
      background-color: var(--page-kubet-accent-color);
      color: var(--page-kubet-text-dark);
      border: none;
    }
    .page-kubet-floating-promo .page-kubet-btn:hover {
      background-color: #e0a800;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-kubet-hero {
        padding: 40px 15px;
      }
      .page-kubet-hero h1 {
        font-size: 2em;
      }
      .page-kubet-hero p {
        font-size: 1em;
      }
      .page-kubet-hero-actions {
        flex-direction: column;
        gap: 15px;
      }
      .page-kubet-btn {
        padding: 12px 25px;
        width: 100%;
        max-width: 300px;
      }
      .page-kubet-section {
        padding: 25px;
      }
      .page-kubet-section h2 {
        font-size: 1.8em;
      }
      .page-kubet-grid {
        grid-template-columns: 1fr;
      }
      .page-kubet-floating-promo {
        flex-direction: column;
        align-items: stretch;
      }
      .page-kubet-floating-promo p {
        text-align: center;
      }
      .page-kubet-floating-promo .page-kubet-btn {
        width: 100%;
      }
    }