:root {
      --page-hi88-primary-color: #e44d26; /* Một màu cam-đỏ rực rỡ, phổ biến trong các trang cá cược */
      --page-hi88-secondary-color: #333; /* Màu xám đậm */
      --page-hi88-text-color: #ffffff; /* Màu trắng */
      --page-hi88-dark-bg: #1a1a1a; /* Nền rất tối */
      --page-hi88-light-bg: #2a2a2a; /* Nền tối hơn một chút */
      --page-hi88-accent-color: #ffcc00; /* Màu vàng kim cho các điểm nhấn */
      --page-hi88-border-color: #444; /* Màu viền */
      --page-hi88-button-hover-bg: #f05e36; /* Màu nút khi di chuột qua */
      --page-hi88-button-text-color: #fff; /* Màu chữ nút */
    }

    .page-hi88 {
      font-family: 'Arial', sans-serif;
      color: var(--page-hi88-text-color);
      background-color: var(--page-hi88-dark-bg);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .page-hi88__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-hi88__hero-section {
      position: relative;
      width: 100%;
      background-color: var(--page-hi88-dark-bg);
      text-align: center;
      padding-top: 10px; /* Khoảng cách cho header cố định trên desktop */
      padding-bottom: 40px;
      overflow: hidden;
    }

    .page-hi88__hero-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      max-height: 500px; /* Giới hạn chiều cao cho thẩm mỹ */
      max-width: 100%;
      box-sizing: border-box;
      overflow: hidden;
    }

    .page-hi88__hero-content {
      position: relative;
      z-index: 2;
      padding: 20px;
      margin-top: -80px; /* Chồng lấp nhẹ với hình ảnh để tạo hiệu ứng */
      background: linear-gradient(to top, var(--page-hi88-dark-bg) 0%, rgba(26, 26, 26, 0.8) 50%, rgba(26, 26, 26, 0) 100%);
    }

    .page-hi88__hero-title {
      font-size: 2.5em;
      color: var(--page-hi88-accent-color);
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-hi88__hero-subtitle {
      font-size: 1.2em;
      color: var(--page-hi88-text-color);
      margin-bottom: 30px;
    }

    .page-hi88__cta-button {
      display: inline-block;
      background-color: var(--page-hi88-primary-color);
      color: var(--page-hi88-button-text-color);
      padding: 15px 30px;
      border-radius: 8px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-hi88__cta-button:hover {
      background-color: var(--page-hi88-button-hover-bg);
      transform: translateY(-2px);
    }

    .page-hi88__section {
      padding: 40px 0;
      background-color: var(--page-hi88-light-bg);
      margin-bottom: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-hi88__section--dark {
      background-color: var(--page-hi88-dark-bg);
    }

    .page-hi88__section-title {
      font-size: 2em;
      color: var(--page-hi88-primary-color);
      text-align: center;
      margin-bottom: 30px;
      padding-bottom: 10px;
      position: relative;
    }

    .page-hi88__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 4px;
      background-color: var(--page-hi88-accent-color);
      border-radius: 2px;
    }

    .page-hi88__text-content {
      font-size: 1em;
      margin-bottom: 20px;
      color: #ccc;
    }

    .page-hi88__text-content strong {
      color: var(--page-hi88-accent-color);
    }

    .page-hi88__list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px 0;
    }

    .page-hi88__list-item {
      background-color: #3a3a3a;
      border-left: 5px solid var(--page-hi88-primary-color);
      margin-bottom: 10px;
      padding: 15px;
      border-radius: 5px;
      font-size: 1em;
      color: #eee;
    }

    .page-hi88__list-item strong {
      color: var(--page-hi88-accent-color);
    }

    .page-hi88__image-full {
      width: 100%;
      height: auto;
      display: block;
      margin: 20px auto; /* Căn giữa hình ảnh */
      border-radius: 8px;
      object-fit: cover;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-hi88__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-hi88__game-card {
      background-color: #3a3a3a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .page-hi88__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.7);
    }

    .page-hi88__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-hi88__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-hi88__game-card-title {
      font-size: 1.4em;
      color: var(--page-hi88-accent-color);
      margin-bottom: 10px;
    }

    .page-hi88__game-card-description {
      font-size: 0.95em;
      color: #ccc;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-hi88__game-card-button {
      display: block;
      background-color: var(--page-hi88-primary-color);
      color: var(--page-hi88-button-text-color);
      padding: 10px 15px;
      border-radius: 5px;
      font-size: 0.9em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-hi88__game-card-button:hover {
      background-color: var(--page-hi88-button-hover-bg);
    }

    .page-hi88__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-hi88-accent-color);
      color: var(--page-hi88-secondary-color);
      padding: 15px 25px;
      border-radius: 50px;
      font-size: 1.1em;
      font-weight: bold;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      animation: page-hi88-pulse 2s infinite;
    }

    .page-hi88__floating-button:hover {
      background-color: #ffd733;
      transform: scale(1.05);
    }

    @keyframes page-hi88-pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-hi88__faq-section {
      background-color: var(--page-hi88-dark-bg);
      padding: 40px 0;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-hi88__faq-item {
      background-color: #3a3a3a;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-hi88__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--page-hi88-secondary-color);
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
      border-bottom: 1px solid var(--page-hi88-border-color);
    }

    .page-hi88__faq-question:hover {
      background-color: #444;
    }

    .page-hi88__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-hi88-accent-color);
      pointer-events: none; /* Ngăn h3 chặn sự kiện click */
    }

    .page-hi88__faq-toggle {
      font-size: 1.5em;
      color: var(--page-hi88-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn span chặn sự kiện click */
    }

    .page-hi88__faq-item.active .page-hi88__faq-toggle {
      transform: rotate(45deg); /* Thay đổi '+' thành 'X' hoặc tương tự */
    }

    .page-hi88__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #ddd;
    }

    .page-hi88__faq-item.active .page-hi88__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-hi88__promo-banner {
      background-color: var(--page-hi88-primary-color);
      color: white;
      text-align: center;
      padding: 25px 20px;
      margin-top: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-hi88__promo-banner h2 {
      font-size: 1.8em;
      margin-bottom: 10px;
      color: var(--page-hi88-accent-color);
    }

    .page-hi88__promo-banner p {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-hi88__container {
        padding: 15px;
      }

      .page-hi88__hero-section {
        padding-top: 10px; /* Khoảng cách cho header cố định trên mobile */
      }

      .page-hi88__hero-title {
        font-size: 2em;
      }

      .page-hi88__hero-subtitle {
        font-size: 1em;
      }

      .page-hi88__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-hi88__section-title {
        font-size: 1.6em;
      }

      .page-hi88__game-grid {
        grid-template-columns: 1fr;
      }

      .page-hi88__game-card-image {
        height: 180px;
      }

      .page-hi88__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-hi88__faq-question {
        padding: 12px 15px;
      }

      .page-hi88__faq-question h3 {
        font-size: 1em;
      }

      .page-hi88__faq-answer {
        padding: 0 10px;
      }

      .page-hi88__faq-item.active .page-hi88__faq-answer {
        padding: 15px 10px !important;
      }

      /* Tối ưu hóa hình ảnh cho thiết bị di động */
      .page-hi88__hero-image,
      .page-hi88__image-full,
      .page-hi88__game-card-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
    }