/* Tổng quan */
    .page-trang {
      font-family: 'Arial', sans-serif;
      background-color: #000000;
      color: #FFFFFF;
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-trang__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    /* Tiêu đề chính */
    .page-trang__heading-primary {
      color: #FFD700;
      text-align: center;
      margin-bottom: 20px;
      font-size: 2.5em;
      font-weight: bold;
    }

    /* Tiêu đề phụ */
    .page-trang__heading-secondary {
      color: #FFD700;
      text-align: center;
      margin-top: 40px;
      margin-bottom: 25px;
      font-size: 2em;
    }

    .page-trang__heading-tertiary {
      color: #FFD700;
      font-size: 1.5em;
      margin-top: 30px;
      margin-bottom: 15px;
    }

    /* Nút chung */
    .page-trang__button {
      display: inline-block;
      background-color: #FFD700;
      color: #000000;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-trang__button:hover {
      background-color: #e6c200;
      transform: translateY(-2px);
    }

    /* Hình ảnh */
    .page-trang img {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
    }

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

    /* Hero Section */
    .page-trang__hero-section {
      text-align: center;
      padding: 10px 0 40px 0; /* Adjusted padding-top for fixed header */
      background-color: #000000;
    }

    .page-trang__hero-banner {
      width: 100%;
      max-width: 100%;
      height: auto;
      object-fit: cover;
      margin-bottom: 20px;
      border-radius: 0; /* Banner should not have rounded corners */
    }

    .page-trang__hero-logo {
      width: 150px;
      height: auto;
      margin: -70px auto 20px auto; /* Position logo over banner slightly */
      border-radius: 8px;
      box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
    }

    .page-trang__hero-content {
      padding: 0 20px;
    }

    .page-trang__hero-content p {
      font-size: 1.1em;
      margin-bottom: 30px;
      color: #E0E0E0;
    }

    /* Giới thiệu */
    .page-trang__about-section {
      padding: 40px 0;
      background-color: #1a1a1a;
      text-align: center;
    }

    .page-trang__about-content {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .page-trang__about-content p {
      margin-bottom: 20px;
      color: #CCCCCC;
    }

    .page-trang__about-image {
      margin-top: 30px;
      width: 100%;
      height: auto;
      max-width: 600px;
    }

    /* Phần game */
    .page-trang__game-section {
      padding: 40px 0;
      background-color: #000000;
    }

    .page-trang__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      padding: 0 20px;
    }

    .page-trang__game-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      padding-bottom: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-trang__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(255, 215, 0, 0.4);
    }

    .page-trang__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-bottom: 3px solid #FFD700;
      margin-bottom: 15px;
    }

    .page-trang__game-card h3 {
      color: #FFD700;
      font-size: 1.3em;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-trang__game-card p {
      color: #CCCCCC;
      font-size: 0.95em;
      padding: 0 15px;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    /* Khuyến mãi */
    .page-trang__promo-section {
      padding: 50px 0;
      background-color: #1a1a1a;
      text-align: center;
    }

    .page-trang__promo-card {
      background-color: #000000;
      border: 2px solid #FFD700;
      border-radius: 10px;
      padding: 30px;
      max-width: 800px;
      margin: 0 auto;
      box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    }

    .page-trang__promo-card h3 {
      color: #FFD700;
      font-size: 1.8em;
      margin-bottom: 15px;
    }

    .page-trang__promo-card p {
      color: #FFFFFF;
      font-size: 1.1em;
      margin-bottom: 25px;
    }

    .page-trang__promo-card .page-trang__button {
      font-size: 1.1em;
      padding: 15px 35px;
    }

    /* Hướng dẫn */
    .page-trang__guide-section {
      padding: 50px 0;
      background-color: #000000;
    }

    .page-trang__guide-steps {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 30px;
      padding: 0 20px;
    }

    .page-trang__guide-step-item {
      background-color: #1a1a1a;
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      width: 100%;
      max-width: 350px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
    }

    .page-trang__guide-step-item:hover {
      transform: translateY(-5px);
    }

    .page-trang__guide-step-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      object-fit: contain;
    }

    .page-trang__guide-step-item h4 {
      color: #FFD700;
      font-size: 1.3em;
      margin-bottom: 10px;
    }

    .page-trang__guide-step-item p {
      color: #CCCCCC;
      font-size: 0.95em;
    }

    /* Nhà cung cấp game */
    .page-trang__providers-section {
      padding: 50px 0;
      background-color: #1a1a1a;
    }

    .page-trang__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      padding: 0 20px;
      justify-items: center;
    }

    .page-trang__provider-item {
      background-color: #000000;
      border-radius: 8px;
      padding: 15px;
      text-align: center;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100px;
    }

    .page-trang__provider-item:hover {
      transform: scale(1.05);
      box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
    }

    .page-trang__provider-logo {
      width: 120px;
      height: auto;
      object-fit: contain;
    }

    /* FAQ Section */
    .page-trang__faq-section {
      padding: 50px 0;
      background-color: #000000;
    }

    .page-trang__faq-list {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .page-trang__faq-item {
      background-color: #1a1a1a;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-trang__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #2a2a2a;
      cursor: pointer;
      user-select: none;
      border-bottom: 1px solid #3a3a3a;
    }

    .page-trang__faq-question:hover {
      background-color: #3a3a3a;
    }

    .page-trang__faq-question h3 {
      color: #FFD700;
      font-size: 1.1em;
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-trang__faq-toggle {
      font-size: 1.5em;
      color: #FFD700;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-trang__faq-item.active .page-trang__faq-toggle {
      transform: rotate(45deg);
    }

    .page-trang__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      color: #CCCCCC;
      font-size: 0.95em;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

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

    /* Nút đăng nhập nổi */
    .page-trang__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #FFD700;
      color: #000000;
      padding: 15px 25px;
      border-radius: 50px;
      font-weight: bold;
      box-shadow: 0 5px 15px rgba(255, 215, 0, 0.5);
      z-index: 1000;
      text-align: center;
      cursor: pointer;
      animation: page-trang__pulse 2s infinite;
      font-size: 1.1em;
      border: none;
      white-space: nowrap;
    }

    .page-trang__floating-button:hover {
      background-color: #e6c200;
      animation: none;
    }

    @keyframes page-trang__pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    /* Social Media */
    .page-trang__social-section {
      padding: 40px 0;
      background-color: #000000;
      text-align: center;
    }

    .page-trang__social-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      padding: 0 20px;
    }

    .page-trang__social-link-item {
      display: inline-flex;
      align-items: center;
      background-color: #1a1a1a;
      padding: 10px 20px;
      border-radius: 25px;
      text-decoration: none;
      color: #FFFFFF;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-trang__social-link-item:hover {
      background-color: #FFD700;
      color: #000000;
      transform: translateY(-3px);
    }

    .page-trang__social-icon {
      width: 30px;
      height: 30px;
      margin-right: 10px;
      filter: brightness(0) invert(1); /* White icon on dark background */
    }

    .page-trang__social-link-item:hover .page-trang__social-icon {
      filter: none; /* Original color on hover (assuming yellow icon) */
    }

    /* Responsive */
    @media (max-width: 768px) {
      .page-trang__hero-section {
        padding-top: 10px; /* Adjusted padding-top for fixed header on mobile */
      }

      .page-trang__hero-logo {
        width: 120px;
        margin: -60px auto 15px auto;
      }

      .page-trang__heading-primary {
        font-size: 2em;
      }

      .page-trang__heading-secondary {
        font-size: 1.6em;
      }

      .page-trang__heading-tertiary {
        font-size: 1.3em;
      }

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

      .page-trang__guide-steps {
        flex-direction: column;
        align-items: center;
      }

      .page-trang__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

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

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

      .page-trang__faq-answer {
        padding: 0 15px;
      }

      .page-trang__faq-item.active .page-trang__faq-answer {
        padding: 15px !important;
      }

      /* Ensure images are responsive */
      .page-trang img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-trang__image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }