/* CSS cho trang helo 88 */
    :root {
      --page-helo88-primary-color: #FFD700; /* Vàng kim */
      --page-helo88-secondary-color: #00BFFF; /* Xanh da trời */
      --page-helo88-background-dark: #1a1a1a; /* Nền tối */
      --page-helo88-text-light: #f0f0f0; /* Chữ sáng */
      --page-helo88-card-background: #2a2a2a; /* Nền thẻ */
      --page-helo88-border-color: #444; /* Màu viền */
      --page-helo88-safe-zone-height: 160px; /* Vùng an toàn cho banner */
    }

    .page-helo88 {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-helo88-background-dark);
      color: var(--page-helo88-text-light);
      line-height: 1.6;
      padding-bottom: 80px; /* Đảm bảo không bị nút nổi che */
    }

    .page-helo88-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-helo88-section {
      padding: 40px 0;
      text-align: center;
    }

    .page-helo88-section-dark {
      background-color: var(--page-helo88-card-background);
    }

    .page-helo88-heading {
      color: var(--page-helo88-primary-color);
      margin-bottom: 25px;
      font-size: 2.2em;
      font-weight: bold;
    }
    
    .page-helo88-heading-h2 {
        color: var(--page-helo88-primary-color);
        margin-bottom: 20px;
        font-size: 1.8em;
    }

    .page-helo88-text {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: var(--page-helo88-text-light);
    }

    .page-helo88-button {
      display: inline-block;
      background-color: var(--page-helo88-primary-color);
      color: var(--page-helo88-background-dark);
      padding: 12px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-helo88-button:hover {
      background-color: var(--page-helo88-secondary-color);
      color: var(--page-helo88-text-light);
      transform: translateY(-2px);
    }

    /* Hero Banner */
    .page-helo88-hero {
      background-color: var(--page-helo88-background-dark);
      padding-top: var(--page-helo88-safe-zone-height); /* Vùng an toàn cho menu nổi */
      padding-bottom: 20px;
      text-align: center;
    }
    
    .page-helo88-hero-content {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 15px;
    }

    .page-helo88-hero img {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 20px auto;
      border-radius: 10px;
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    }

    /* Floating Button */
    .page-helo88-floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      background-color: var(--page-helo88-secondary-color);
      color: var(--page-helo88-text-light);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
      animation: page-helo88-pulse 2s infinite;
      transition: background-color 0.3s ease;
    }

    .page-helo88-floating-button:hover {
      background-color: var(--page-helo88-primary-color);
      color: var(--page-helo88-background-dark);
    }

    @keyframes page-helo88-pulse {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.05); }
      100% { transform: translateX(-50%) scale(1); }
    }

    /* Game Categories / Product Display */
    .page-helo88-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-helo88-game-card {
      background-color: var(--page-helo88-card-background);
      border-radius: 10px;
      padding: 15px;
      text-align: center;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: center;
      min-height: 180px; /* Đảm bảo chiều cao tối thiểu */
    }

    .page-helo88-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
    }

    .page-helo88-game-card img {
      max-width: 90%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 10px;
      object-fit: contain; /* Giữ tỷ lệ hình ảnh */
      flex-grow: 1; /* Cho phép hình ảnh chiếm không gian */
    }

    .page-helo88-game-card h3 {
      font-size: 1.2em;
      color: var(--page-helo88-primary-color);
      margin-bottom: 0;
    }
    
    .page-helo88-game-card a {
        text-decoration: none;
        color: var(--page-helo88-primary-color);
        font-weight: bold;
    }
    
    .page-helo88-game-card a:hover {
        color: var(--page-helo88-secondary-color);
    }

    /* Promotions */
    .page-helo88-promo-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      text-align: left;
    }

    .page-helo88-promo-list li {
      background-color: var(--page-helo88-card-background);
      border-left: 5px solid var(--page-helo88-primary-color);
      margin-bottom: 15px;
      padding: 15px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-helo88-promo-list li strong {
      color: var(--page-helo88-primary-color);
      font-size: 1.1em;
      display: block;
      margin-bottom: 5px;
    }

    /* Game Providers */
    .page-helo88-provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 15px;
      margin-top: 30px;
      align-items: center;
      justify-items: center;
    }

    .page-helo88-provider-logo {
      background-color: var(--page-helo88-card-background);
      border-radius: 8px;
      padding: 10px;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 80px; /* Kích thước cố định cho logo */
      width: 100%;
      max-width: 120px; /* Giới hạn chiều rộng */
    }
    
    .page-helo88-provider-logo:hover {
        transform: scale(1.05);
    }

    .page-helo88-provider-logo img {
      max-width: 90%;
      max-height: 90%;
      object-fit: contain;
    }

    /* Why Choose Us */
    .page-helo88-feature-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .page-helo88-feature-list li {
      background-color: var(--page-helo88-card-background);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
      text-align: left;
      border-bottom: 3px solid var(--page-helo88-secondary-color);
    }

    .page-helo88-feature-list li strong {
      color: var(--page-helo88-primary-color);
      font-size: 1.2em;
      display: block;
      margin-bottom: 10px;
    }
    
    /* Registration Guide */
    .page-helo88-steps-list {
        list-style: none;
        padding: 0;
        margin-top: 30px;
        text-align: left;
    }

    .page-helo88-steps-list li {
        background-color: var(--page-helo88-card-background);
        margin-bottom: 15px;
        padding: 15px 20px;
        border-radius: 8px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: flex-start;
    }

    .page-helo88-steps-list li .step-number {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        background-color: var(--page-helo88-primary-color);
        color: var(--page-helo88-background-dark);
        border-radius: 50%;
        font-weight: bold;
        margin-right: 15px;
        flex-shrink: 0;
    }

    .page-helo88-steps-list li p {
        margin: 0;
        color: var(--page-helo88-text-light);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-helo88-heading {
        font-size: 1.8em;
      }
      .page-helo88-heading-h2 {
        font-size: 1.5em;
      }
      .page-helo88-text {
        font-size: 1em;
      }
      .page-helo88-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-helo88-game-card {
        min-height: 160px;
      }
      .page-helo88-provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      }
      .page-helo88-provider-logo {
        height: 60px;
        max-width: 100px;
      }
      .page-helo88-floating-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
      }
      .page-helo88-safe-zone-height {
          padding-top: 140px; /* Giảm vùng an toàn cho mobile */
      }
    }

    @media (max-width: 480px) {
      .page-helo88-game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-helo88-game-card {
        min-height: 140px;
        padding: 10px;
      }
      .page-helo88-game-card h3 {
        font-size: 1em;
      }
      .page-helo88-provider-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .page-helo88-provider-logo {
        height: 50px;
      }
    }