:root {
      --page-qh88dangnhap-primary-color: #e44d26; /* Cam đỏ */
      --page-qh88dangnhap-secondary-color: #ff7f50; /* San hô */
      --page-qh88dangnhap-dark-bg: #1a1a1a; /* Nền tối */
      --page-qh88dangnhap-light-text: #f0f0f0; /* Chữ sáng */
      --page-qh88dangnhap-accent-color: #ffd700; /* Vàng */
      --page-qh88dangnhap-border-color: #333;
      --page-qh88dangnhap-button-hover: #ff6347;
      --page-qh88dangnhap-header-safe-zone: 160px; /* Vùng an toàn cho banner */
    }

    .page-qh88dangnhap {
      font-family: 'Arial', sans-serif;
      background-color: var(--page-qh88dangnhap-dark-bg);
      color: var(--page-qh88dangnhap-light-text);
      line-height: 1.6;
      padding-top: var(--page-qh88dangnhap-header-safe-zone); /* Đảm bảo vùng an toàn cho banner */
      position: relative;
    }

    .page-qh88dangnhap-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 15px;
    }

    .page-qh88dangnhap-section {
      padding: 40px 0;
      text-align: center;
    }

    .page-qh88dangnhap-section.page-qh88dangnhap-hero {
      padding-top: 0; /* Hero section không cần padding-top thêm vì đã có ở .page-qh88dangnhap */
      padding-bottom: 20px;
      background-color: var(--page-qh88dangnhap-dark-bg);
    }

    .page-qh88dangnhap-hero-image-wrapper {
      display: flex;
      justify-content: center;
      align-items: center;
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-qh88dangnhap-hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    }

    .page-qh88dangnhap-title {
      color: var(--page-qh88dangnhap-accent-color);
      margin-bottom: 20px;
      font-size: 2.5em;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-qh88dangnhap-subtitle {
      color: var(--page-qh88dangnhap-secondary-color);
      margin-bottom: 30px;
      font-size: 1.2em;
    }

    .page-qh88dangnhap-btn {
      display: inline-block;
      background-color: var(--page-qh88dangnhap-primary-color);
      color: var(--page-qh88dangnhap-light-text);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-qh88dangnhap-btn:hover {
      background-color: var(--page-qh88dangnhap-button-hover);
      transform: translateY(-2px);
    }

    .page-qh88dangnhap-floating-btn {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      white-space: nowrap;
      padding: 15px 30px;
      font-size: 1.1em;
      animation: page-qh88dangnhap-pulse 2s infinite;
    }

    @keyframes page-qh88dangnhap-pulse {
      0% {
        box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.7);
      }
      70% {
        box-shadow: 0 0 0 15px rgba(255, 215, 0, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(255, 215, 0, 0);
      }
    }

    .page-qh88dangnhap-game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-qh88dangnhap-game-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      padding: 15px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      text-align: center;
      border: 1px solid var(--page-qh88dangnhap-border-color);
    }

    .page-qh88dangnhap-game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5);
    }

    .page-qh88dangnhap-game-card img {
      max-width: 90%;
      height: auto;
      border-radius: 5px;
      margin-bottom: 10px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-qh88dangnhap-game-card h3 {
      color: var(--page-qh88dangnhap-accent-color);
      font-size: 1.1em;
      margin-bottom: 5px;
    }

    .page-qh88dangnhap-game-card p {
      font-size: 0.9em;
      color: #ccc;
    }

    .page-qh88dangnhap-provider-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
      gap: 15px;
      margin-top: 30px;
    }

    .page-qh88dangnhap-provider-item {
      background-color: #2a2a2a;
      border-radius: 8px;
      padding: 10px;
      box-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
      transition: transform 0.2s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 70px;
      border: 1px solid var(--page-qh88dangnhap-border-color);
    }

    .page-qh88dangnhap-provider-item:hover {
      transform: scale(1.05);
    }

    .page-qh88dangnhap-provider-item img {
      max-width: 100%;
      max-height: 50px;
      display: block;
    }

    .page-qh88dangnhap-list {
      list-style: none;
      padding: 0;
      text-align: left;
      max-width: 800px;
      margin: 20px auto;
    }

    .page-qh88dangnhap-list li {
      background-color: #2a2a2a;
      margin-bottom: 10px;
      padding: 15px 20px;
      border-radius: 8px;
      display: flex;
      align-items: flex-start;
      border: 1px solid var(--page-qh88dangnhap-border-color);
    }

    .page-qh88dangnhap-list li::before {
      content: '✅';
      margin-right: 10px;
      font-size: 1.2em;
      line-height: 1;
    }

    .page-qh88dangnhap-text-content {
      text-align: left;
      max-width: 800px;
      margin: 20px auto;
      padding: 0 15px;
    }

    .page-qh88dangnhap-text-content h2 {
      color: var(--page-qh88dangnhap-accent-color);
      margin-top: 30px;
      margin-bottom: 15px;
      font-size: 1.8em;
    }

    .page-qh88dangnhap-text-content h3 {
      color: var(--page-qh88dangnhap-secondary-color);
      margin-top: 25px;
      margin-bottom: 10px;
      font-size: 1.4em;
    }

    .page-qh88dangnhap-text-content p {
      margin-bottom: 15px;
      color: #e0e0e0;
    }

    .page-qh88dangnhap-text-content strong {
      color: var(--page-qh88dangnhap-accent-color);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-qh88dangnhap-title {
        font-size: 2em;
      }
      .page-qh88dangnhap-game-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
      .page-qh88dangnhap-provider-grid {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
      }
      .page-qh88dangnhap-floating-btn {
        width: calc(100% - 40px);
        bottom: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-qh88dangnhap-section {
        padding: 30px 0;
      }
    }

    @media (max-width: 480px) {
      .page-qh88dangnhap-title {
        font-size: 1.8em;
      }
      .page-qh88dangnhap-subtitle {
        font-size: 1em;
      }
      .page-qh88dangnhap-game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .page-qh88dangnhap-provider-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .page-qh88dangnhap-list li {
        padding: 10px 15px;
      }
    }