
    /* CSS cho trang hb88. com */
    :root {
      --page-hb888-primary-color: #e44d26; /* Màu cam đậm */
      --page-hb888-secondary-color: #ff7f50; /* Màu cam nhạt hơn */
      --page-hb888-text-color: #333;
      --page-hb888-light-text-color: #f8f8f8;
      --page-hb888-bg-color: #f0f2f5;
      --page-hb888-card-bg: #ffffff;
      --page-hb888-border-color: #ddd;
    }

    .page-hb888 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-hb888-text-color);
      background-color: var(--page-hb888-bg-color);
      padding-bottom: 80px; /* Khoảng trống cho nút nổi */
    }

    .page-hb888-section {
      padding: 20px 15px;
      margin-bottom: 20px;
      background-color: var(--page-hb888-card-bg);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      max-width: 960px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-hb888-hero {
      position: relative;
      text-align: center;
      padding: 0;
      margin-bottom: 20px;
      overflow: hidden;
      border-radius: 8px;
      max-width: 960px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-hb888-hero-banner {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 8px 8px 0 0;
      object-fit: cover;
      max-height: 300px; /* Giới hạn chiều cao banner */
    }

    .page-hb888-hero-content {
      position: relative;
      background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.6) 100%);
      color: var(--page-hb888-light-text-color);
      padding: 20px 15px;
      margin-top: -80px; /* Để phần nội dung chồng lên banner một chút */
      border-radius: 0 0 8px 8px;
    }

    .page-hb888-hero h1 {
      font-size: 2.2em;
      margin-top: 0;
      margin-bottom: 10px;
      color: var(--page-hb888-light-text-color);
      text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    }

    .page-hb888-hero p {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: var(--page-hb888-light-text-color);
      text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    }

    .page-hb888-floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: var(--page-hb888-primary-color);
      box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
      z-index: 1000;
    }

    .page-hb888-floating-buttons a {
      display: block;
      width: 45%;
      padding: 12px 10px;
      background-color: var(--page-hb888-secondary-color);
      color: var(--page-hb888-light-text-color);
      text-align: center;
      text-decoration: none;
      border-radius: 25px;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
      box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    }

    .page-hb888-floating-buttons a:hover {
      background-color: #d84315;
    }

    .page-hb888-h2, .page-hb888-h3 {
      color: var(--page-hb888-primary-color);
      margin-bottom: 15px;
      border-bottom: 2px solid var(--page-hb888-secondary-color);
      padding-bottom: 5px;
    }

    .page-hb888-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-top: 20px;
      text-align: center;
    }

    .page-hb888-grid-item {
      background-color: var(--page-hb888-card-bg);
      border: 1px solid var(--page-hb888-border-color);
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.05);
      transition: transform 0.3s ease;
    }

    .page-hb888-grid-item:hover {
      transform: translateY(-5px);
    }

    .page-hb888-grid-item img {
      max-width: 100%;
      height: auto;
      border-radius: 4px;
      margin-bottom: 10px;
    }

    .page-hb888-grid-item h3 {
      margin-top: 0;
      font-size: 1.1em;
      color: var(--page-hb888-text-color);
    }

    .page-hb888-list {
      list-style: none;
      padding: 0;
    }

    .page-hb888-list li {
      background-color: var(--page-hb888-bg-color);
      margin-bottom: 10px;
      padding: 10px 15px;
      border-left: 4px solid var(--page-hb888-primary-color);
      border-radius: 4px;
      color: var(--page-hb888-text-color);
    }

    .page-hb888-faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-hb888-border-color);
      border-radius: 8px;
      overflow: hidden;
    }

    .page-hb888-faq-question {
      background-color: var(--page-hb888-secondary-color);
      color: var(--page-hb888-light-text-color);
      padding: 12px 15px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: bold;
    }

    .page-hb888-faq-question span {
      font-size: 1.2em;
    }

    .page-hb888-faq-answer {
      background-color: var(--page-hb888-card-bg);
      padding: 15px;
      border-top: 1px solid var(--page-hb888-border-color);
      display: none;
      color: var(--page-hb888-text-color);
    }

    .page-hb888-faq-item.active .page-hb888-faq-answer {
      display: block;
    }

    .page-hb888-faq-item.active .page-hb888-faq-question span::before {
      content: '-';
    }

    .page-hb888-faq-item:not(.active) .page-hb888-faq-question span::before {
      content: '+';
    }

    @media (min-width: 768px) {
      .page-hb888-hero-content {
        margin-top: -120px;
        padding: 40px 30px;
      }
      .page-hb888-hero h1 {
        font-size: 3em;
      }
      .page-hb888-hero p {
        font-size: 1.2em;
      }
      .page-hb888-floating-buttons {
        width: auto;
        left: 50%;
        transform: translateX(-50%);
        bottom: 20px;
        border-radius: 30px;
        max-width: 400px;
        padding: 10px 20px;
      }
      .page-hb888-floating-buttons a {
        width: 48%;
      }
      .page-hb888-section {
        padding: 30px;
      }
    }
  