:root {
      --page-b52login-primary-color: #f0b90b; /* Vàng đặc trưng */
      --page-b52login-secondary-color: #e65100; /* Cam nhấn */
      --page-b52login-background-dark: #1a1a1a;
      --page-b52login-text-light: #f0f0f0;
      --page-b52login-text-dark: #333333;
      --page-b52login-accent-red: #e74c3c;
      --page-b52login-border-color: #333333;
    }

    .page-b52login {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-b52login-background-dark);
      color: var(--page-b52login-text-light);
      line-height: 1.6;
      padding-bottom: 80px; /* Để chừa chỗ cho nút đăng nhập nổi */
    }

    .page-b52login-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      background-color: #222222;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .page-b52login-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-b52login-header-text {
      text-align: center;
      padding: 20px 0;
      background: linear-gradient(90deg, #1a1a1a, #333333, #1a1a1a);
      border-bottom: 2px solid var(--page-b52login-primary-color);
      margin-bottom: 20px;
    }

    .page-b52login-header-text h1 {
      color: var(--page-b52login-primary-color);
      font-size: 2.2em;
      margin: 0;
      text-shadow: 0 0 8px rgba(240, 185, 11, 0.7);
    }

    .page-b52login-header-text p {
      color: var(--page-b52login-text-light);
      font-size: 1em;
      margin-top: 10px;
    }

    .page-b52login-banner {
      width: 100%;
      overflow: hidden;
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-b52login-banner img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      border-radius: 8px;
    }

    .page-b52login-button-float {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: linear-gradient(90deg, var(--page-b52login-primary-color), var(--page-b52login-secondary-color));
      padding: 12px 0;
      text-align: center;
      box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-b52login-button-float a {
      display: inline-block;
      background-color: var(--page-b52login-accent-red);
      color: var(--page-b52login-text-light);
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-b52login-button-float a:hover {
      background-color: #c0392b;
      transform: translateY(-2px);
    }

    .page-b52login-button-float span {
      margin-right: 15px;
      font-size: 1.1em;
      color: var(--page-b52login-text-light);
      font-weight: bold;
    }

    .page-b52login h2, .page-b52login h3 {
      color: var(--page-b52login-primary-color);
      text-align: center;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-b52login h2::after, .page-b52login h3::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--page-b52login-secondary-color);
      border-radius: 2px;
    }

    .page-b52login p {
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-b52login ul {
      list-style: none;
      padding: 0;
      margin-bottom: 20px;
    }

    .page-b52login ul li {
      background-color: #2a2a2a;
      margin-bottom: 10px;
      padding: 12px 15px;
      border-left: 4px solid var(--page-b52login-primary-color);
      border-radius: 4px;
      display: flex;
      align-items: center;
      color: var(--page-b52login-text-light);
    }

    .page-b52login ul li::before {
      content: '✔';
      color: var(--page-b52login-secondary-color);
      font-weight: bold;
      margin-right: 10px;
    }

    .page-b52login-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .page-b52login-game-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      overflow: hidden;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .page-b52login-game-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    }

    .page-b52login-game-item img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid var(--page-b52login-border-color);
    }

    .page-b52login-game-item h4 {
      color: var(--page-b52login-primary-color);
      font-size: 1.1em;
      margin: 10px 0;
      padding: 0 5px;
    }

    .page-b52login-game-item a {
      color: var(--page-b52login-primary-color);
      text-decoration: none;
      display: block;
      padding: 10px 0;
      font-weight: bold;
      transition: color 0.2s ease;
    }

    .page-b52login-game-item a:hover {
      color: var(--page-b52login-secondary-color);
    }

    .page-b52login-steps {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .page-b52login-step-item {
      background-color: #2a2a2a;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .page-b52login-step-item .step-number {
      background-color: var(--page-b52login-primary-color);
      color: var(--page-b52login-background-dark);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.4em;
      font-weight: bold;
      flex-shrink: 0;
    }

    .page-b52login-step-item .step-content h3 {
      text-align: left;
      margin-top: 0;
      margin-bottom: 10px;
      color: var(--page-b52login-primary-color);
      padding-bottom: 0;
    }

    .page-b52login-step-item .step-content h3::after {
      display: none;
    }

    .page-b52login-step-item .step-content p {
      margin: 0;
      color: var(--page-b52login-text-light);
    }

    .page-b52login-faq {
      margin-top: 30px;
    }

    .page-b52login-faq-item {
      margin-bottom: 15px;
      background-color: #2a2a2a;
      border-radius: 8px;
      overflow: hidden;
    }

    .page-b52login-faq-question {
      background-color: #333333;
      padding: 15px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
      color: var(--page-b52login-primary-color);
      font-size: 1.1em;
      border-bottom: 1px solid var(--page-b52login-border-color);
    }

    .page-b52login-faq-question.active {
      border-bottom: none;
    }

    .page-b52login-faq-question span {
      transition: transform 0.3s ease;
    }

    .page-b52login-faq-question.active span {
      transform: rotate(180deg);
    }

    .page-b52login-faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease-out, padding 0.4s ease-out;
      color: var(--page-b52login-text-light);
    }

    .page-b52login-faq-answer.open {
      max-height: 200px; /* Adjust as needed */
      padding: 15px 20px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-b52login h1 {
        font-size: 1.8em;
      }
      .page-b52login h2 {
        font-size: 1.5em;
      }
      .page-b52login h3 {
        font-size: 1.2em;
      }
      .page-b52login-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-b52login-game-item img {
        height: 100px;
      }
      .page-b52login-button-float span {
        font-size: 0.9em;
        margin-right: 10px;
      }
      .page-b52login-button-float a {
        padding: 10px 20px;
        font-size: 1em;
      }
    }

    @media (max-width: 480px) {
      .page-b52login-header-text h1 {
        font-size: 1.6em;
      }
      .page-b52login-header-text p {
        font-size: 0.9em;
      }
      .page-b52login-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-b52login-game-item img {
        height: 80px;
      }
      .page-b52login-button-float {
        flex-direction: column;
        padding: 10px 0;
      }
      .page-b52login-button-float span {
        margin-bottom: 8px;
        margin-right: 0;
        font-size: 0.85em;
      }
      .page-b52login-button-float a {
        padding: 8px 18px;
        font-size: 0.9em;
      }
      .page-b52login-step-item {
        flex-direction: column;
        text-align: center;
      }
      .page-b52login-step-item .step-number {
        margin-bottom: 10px;
      }
      .page-b52login-step-item .step-content h3 {
        text-align: center;
      }
    }