:root {
      --page-tc88-primary-color: #e44d26; /* Một màu cam/đỏ rực rỡ cho hành động */
      --page-tc88-secondary-color: #333; /* Màu tối cho văn bản */
      --page-tc88-background-light: #f8f8f8; /* Nền sáng */
      --page-tc88-background-dark: #2c3e50; /* Xám xanh đậm cho các phần */
      --page-tc88-text-light: #fff; /* Văn bản sáng */
      --page-tc88-text-dark: #333; /* Văn bản tối */
      --page-tc88-border-color: #ddd; /* Màu viền */
      --page-tc88-font-family: 'Arial', sans-serif;
    }

    .page-tc88 {
      font-family: var(--page-tc88-font-family);
      color: var(--page-tc88-text-dark);
      line-height: 1.6;
      background-color: var(--page-tc88-background-light);
    }

    /* Xử lý khoảng cách cố định của header */
    .page-tc88__hero-section,
    .page-tc88__promotion-banner {
      padding-top: 10px; /* Khoảng đệm nhỏ mang tính trang trí, giả sử body đã xử lý khoảng cách chính */
    }
    
    .page-tc88__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px 15px;
      box-sizing: border-box;
    }

    .page-tc88__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-tc88__section--dark {
      background-color: var(--page-tc88-background-dark);
      color: var(--page-tc88-text-light);
    }

    .page-tc88__heading-primary {
      font-size: 3em;
      color: var(--page-tc88-primary-color);
      margin-bottom: 20px;
      text-align: center;
      font-weight: bold;
    }

    .page-tc88__heading-secondary {
      font-size: 2.2em;
      color: var(--page-tc88-secondary-color);
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
      text-align: center;
    }
    .page-tc88__heading-secondary--light {
      color: var(--page-tc88-text-light);
    }

    .page-tc88__heading-secondary::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-tc88-primary-color);
      border-radius: 2px;
    }

    .page-tc88__text-center {
      text-align: center;
    }

    .page-tc88__button {
      display: inline-block;
      background-color: var(--page-tc88-primary-color);
      color: var(--page-tc88-text-light);
      padding: 15px 30px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-tc88__button:hover {
      background-color: #ff6633; /* Màu cam hơi đậm hơn */
    }

    /* Hero Section */
    .page-tc88__hero-section {
      background-color: #1a1a1a; /* Nền tối cho hero */
      color: var(--page-tc88-text-light);
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

    .page-tc88__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      opacity: 0.4;
    }

    .page-tc88__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-tc88__hero-title {
      font-size: 3.8em;
      margin-bottom: 20px;
      color: #fff;
      font-weight: bold;
      line-height: 1.2;
    }

    .page-tc88__hero-subtitle {
      font-size: 1.5em;
      margin-bottom: 40px;
      color: #eee;
    }
    .page-tc88__hero-promo-link {
        color: #fff;
        text-decoration: underline;
        font-weight: bold;
    }
    .page-tc88__hero-promo-link:hover {
        color: var(--page-tc88-primary-color);
    }


    /* Features Section */
    .page-tc88__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 50px;
    }

    .page-tc88__feature-item {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-tc88__feature-item:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-tc88__feature-icon {
      width: 100px;
      height: 100px;
      margin-bottom: 20px;
      border-radius: 50%;
      object-fit: cover;
    }

    .page-tc88__feature-title {
      font-size: 1.5em;
      color: var(--page-tc88-primary-color);
      margin-bottom: 15px;
    }

    .page-tc88__feature-description {
      font-size: 1em;
      color: var(--page-tc88-secondary-color);
    }

    /* Game Categories Section */
    .page-tc88__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 50px;
    }

    .page-tc88__game-card {
      background-color: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-tc88__game-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-tc88__game-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-tc88__game-content {
      padding: 20px;
    }

    .page-tc88__game-title {
      font-size: 1.4em;
      color: var(--page-tc88-primary-color);
      margin-bottom: 10px;
    }

    .page-tc88__game-description {
      font-size: 0.95em;
      color: var(--page-tc88-secondary-color);
    }

    /* Promotions Section */
    .page-tc88__promotion-banner {
        position: relative;
        background-color: var(--page-tc88-primary-color);
        color: var(--page-tc88-text-light);
        padding: 50px 0;
        overflow: hidden;
    }
    .page-tc88__promotion-background {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.1;
        z-index: 1;
    }
    .page-tc88__promotion-content {
        position: relative;
        z-index: 2;
        max-width: 900px;
        margin: 0 auto;
        padding: 20px;
        text-align: center;
    }
    .page-tc88__promotion-title {
        font-size: 2.8em;
        margin-bottom: 20px;
        font-weight: bold;
    }
    .page-tc88__promotion-text {
        font-size: 1.2em;
        margin-bottom: 30px;
    }
    .page-tc88__promotion-button {
        background-color: #fff;
        color: var(--page-tc88-primary-color);
        border: 2px solid #fff;
    }
    .page-tc88__promotion-button:hover {
        background-color: #f0f0f0;
        color: var(--page-tc88-primary-color);
    }


    /* FAQ Section */
    .page-tc88__faq-section {
      background-color: var(--page-tc88-background-light);
    }

    .page-tc88__faq-list {
      margin-top: 40px;
      text-align: left;
    }

    .page-tc88__faq-item {
      background-color: #fff;
      border: 1px solid var(--page-tc88-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-tc88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #f0f0f0;
      color: var(--page-tc88-secondary-color);
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-tc88__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-tc88__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Ngăn h3 chặn sự kiện click trên phần tử cha */
      color: var(--page-tc88-secondary-color); /* Đảm bảo độ tương phản tốt */
    }

    .page-tc88__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn toggle chặn sự kiện click trên phần tử cha */
      color: var(--page-tc88-primary-color); /* Đảm bảo độ tương phản tốt */
    }

    .page-tc88__faq-item.active .page-tc88__faq-toggle {
      transform: rotate(45deg); /* Thay đổi '+' thành 'x' về mặt hình ảnh */
    }

    .page-tc88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: var(--page-tc88-secondary-color);
      background-color: #fff;
    }

    .page-tc88__faq-item.active .page-tc88__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa nội dung */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-tc88__faq-answer p {
      margin: 0;
      padding-bottom: 10px;
    }
    .page-tc88__faq-answer p:last-child {
      padding-bottom: 0;
    }

    /* Các nút nổi Đăng ký/Đăng nhập */
    .page-tc88__floating-buttons {
      position: fixed;
      top: 50%;
      right: 15px;
      transform: translateY(-50%);
      display: flex;
      flex-direction: column;
      gap: 15px;
      z-index: 1000;
    }

    .page-tc88__floating-button {
      background-color: var(--page-tc88-primary-color);
      color: var(--page-tc88-text-light);
      padding: 12px 20px;
      border-radius: 25px;
      text-align: center;
      font-weight: bold;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none; /* Đảm bảo đây là một nút, không phải liên kết về mặt hình ảnh */
      cursor: pointer;
    }

    .page-tc88__floating-button:hover {
      background-color: #ff6633;
      transform: scale(1.05);
    }
    
    .page-tc88__floating-button--login {
        background-color: #3498db; /* Một màu khác biệt cho Đăng nhập */
    }
    .page-tc88__floating-button--login:hover {
        background-color: #2980b9;
    }

    /* Thiết kế đáp ứng */
    @media (max-width: 992px) {
      .page-tc88__hero-title {
        font-size: 3em;
      }
      .page-tc88__hero-subtitle {
        font-size: 1.3em;
      }
      .page-tc88__heading-primary {
        font-size: 2.5em;
      }
      .page-tc88__heading-secondary {
        font-size: 1.8em;
      }
    }

    @media (max-width: 768px) {
      .page-tc88__section {
        padding: 40px 0;
      }
      .page-tc88__hero-section {
        padding: 60px 0;
      }
      .page-tc88__hero-title {
        font-size: 2.5em;
      }
      .page-tc88__hero-subtitle {
        font-size: 1.1em;
      }
      .page-tc88__heading-primary {
        font-size: 2em;
      }
      .page-tc88__heading-secondary {
        font-size: 1.6em;
      }

      .page-tc88__features-grid,
      .page-tc88__game-grid {
        grid-template-columns: 1fr;
      }

      .page-tc88__feature-item,
      .page-tc88__game-card {
        margin-bottom: 20px;
      }

      /* Đáp ứng cho các mục danh sách (tính năng, trò chơi) */
      .page-tc88__features-grid > *,
      .page-tc88__game-grid > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      
      /* Đáp ứng hình ảnh */
      .page-tc88__hero-background,
      .page-tc88__feature-icon,
      .page-tc88__game-image,
      .page-tc88__promotion-background {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
      .page-tc88__game-image {
        height: 180px !important; /* Điều chỉnh chiều cao cho màn hình nhỏ hơn */
      }
      
      .page-tc88__floating-buttons {
        right: 10px;
        gap: 10px;
      }
      .page-tc88__floating-button {
        padding: 10px 15px;
        font-size: 0.9em;
      }

      .page-tc88__faq-question {
        padding: 15px 20px;
        font-size: 1em;
      }
      .page-tc88__faq-answer {
        padding: 0 20px;
      }
      .page-tc88__faq-item.active .page-tc88__faq-answer {
        padding: 15px 20px !important;
      }
    }

    @media (max-width: 480px) {
      .page-tc88__hero-title {
        font-size: 2em;
      }
      .page-tc88__hero-subtitle {
        font-size: 1em;
      }
      .page-tc88__heading-primary {
        font-size: 1.8em;
      }
      .page-tc88__heading-secondary {
        font-size: 1.4em;
      }
      .page-tc88__button {
        padding: 12px 25px;
        font-size: 1em;
      }
    }