
    /* CSS cho trang fun88 đăng nhập */
    :root {
      --page-fun88-primary-color: #e0b000; /* Vàng hổ phách */
      --page-fun88-secondary-color: #ffffff; /* Trắng */
      --page-fun88-dark-background: #1a1a1a; /* Nền tối */
      --page-fun88-text-color: #ffffff; /* Màu chữ trắng */
      --page-fun88-accent-color: #ff4500; /* Màu cam nổi bật */
      --page-fun88-button-bg: #e0b000;
      --page-fun88-button-text: #1a1a1a;
      --page-fun88-hover-bg: #ffcc00;
    }

    .page-fun88 {
      background-color: var(--page-fun88-dark-background);
      color: var(--page-fun88-text-color);
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      padding-bottom: 80px; /* Để tránh che mất nút nổi */
    }

    .page-fun88-section {
      padding: 20px 15px;
      margin: 0 auto;
      max-width: 1200px;
      text-align: center;
    }

    .page-fun88-banner {
      background-color: #000;
      padding: 0;
      position: relative;
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-fun88-banner img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      max-height: 300px; /* Giới hạn chiều cao banner */
    }

    .page-fun88-banner-content {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0));
      padding: 20px 15px 10px;
      color: var(--page-fun88-secondary-color);
      text-align: center;
    }

    .page-fun88-banner-content h1 {
      font-size: 2.2em;
      color: var(--page-fun88-primary-color);
      margin-bottom: 10px;
      line-height: 1.2;
    }
    .page-fun88-banner-content p {
      font-size: 1.1em;
      margin-bottom: 15px;
    }

    .page-fun88-btn {
      display: inline-block;
      background-color: var(--page-fun88-button-bg);
      color: var(--page-fun88-button-text);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-fun88-btn:hover {
      background-color: var(--page-fun88-hover-bg);
      color: var(--page-fun88-dark-background);
    }

    .page-fun88-floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      background-color: rgba(0, 0, 0, 0.9);
      padding: 10px 0;
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
      z-index: 1000;
    }

    .page-fun88-floating-buttons .page-fun88-btn {
      flex: 1;
      margin: 0 5px;
      padding: 10px 15px;
      font-size: 0.9em;
      text-align: center;
      white-space: nowrap; /* Ngăn chặn ngắt dòng */
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .page-fun88-product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-top: 20px;
    }

    .page-fun88-product-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
      text-align: center;
    }

    .page-fun88-product-item:hover {
      transform: translateY(-5px);
    }

    .page-fun88-product-item img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
      border-bottom: 1px solid #333;
    }

    .page-fun88-product-item h3 {
      font-size: 1.1em;
      color: var(--page-fun88-primary-color);
      margin: 10px 5px;
    }

    .page-fun88-product-item p {
      font-size: 0.9em;
      color: #ccc;
      padding: 0 10px 10px;
    }

    .page-fun88-content-block {
      text-align: left;
      margin-top: 30px;
      background-color: #222;
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.4);
    }

    .page-fun88-content-block h2 {
      color: var(--page-fun88-primary-color);
      font-size: 1.8em;
      margin-bottom: 15px;
      text-align: center;
    }

    .page-fun88-content-block h3 {
      color: var(--page-fun88-secondary-color);
      font-size: 1.4em;
      margin-top: 20px;
      margin-bottom: 10px;
    }

    .page-fun88-content-block p {
      margin-bottom: 10px;
      font-size: 1em;
      color: #e0e0e0;
    }

    .page-fun88-content-block ul {
      list-style-type: disc;
      margin-left: 25px;
      margin-bottom: 15px;
      color: #e0e0e0;
    }

    .page-fun88-content-block ul li {
      margin-bottom: 8px;
      font-size: 1em;
    }

    .page-fun88-highlight {
      color: var(--page-fun88-accent-color);
      font-weight: bold;
    }

    .page-fun88-link {
      color: var(--page-fun88-primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-fun88-link:hover {
      color: var(--page-fun88-hover-bg);
      text-decoration: underline;
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-fun88-banner-content h1 {
        font-size: 3em;
      }
      .page-fun88-banner-content p {
        font-size: 1.2em;
      }
      .page-fun88-product-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
      .page-fun88-floating-buttons {
        width: auto;
        left: 50%;
        transform: translateX(-50%);
        max-width: 400px; /* Giới hạn chiều rộng trên desktop */
        border-radius: 10px 10px 0 0;
        padding: 15px 10px;
      }
      .page-fun88-floating-buttons .page-fun88-btn {
        font-size: 1em;
        padding: 12px 20px;
      }
      .page-fun88-section {
        padding: 30px 20px;
      }
    }
  