:root {
      --page-nohu90-primary-color: #ffcc00; /* Vàng rực rỡ */
      --page-nohu90-secondary-color: #333333; /* Xám đậm */
      --page-nohu90-accent-color: #e74c3c; /* Đỏ nhấn */
      --page-nohu90-background-light: #f8f8f8;
      --page-nohu90-background-dark: #2c3e50; /* Xanh đen */
      --page-nohu90-text-light: #ffffff;
      --page-nohu90-text-dark: #333333;
      --page-nohu90-border-color: #ddd;
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      color: var(--page-nohu90-text-dark);
      background-color: var(--page-nohu90-background-light);
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    .page-nohu90 {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      overflow-x: hidden;
      box-sizing: border-box;
    }

    .page-nohu90__hero-section {
      position: relative;
      width: 100%;
      height: 250px; /* Chiều cao cố định cho banner trên di động */
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      color: var(--page-nohu90-text-light);
      background-color: var(--page-nohu90-background-dark);
      background-image: url('[GALLERY:banner:nohu90_hero_banner,awin68,quay_hu]');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      padding-top: 10px; /* Đảm bảo không bị che bởi header cố định */
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    .page-nohu90__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5); /* Lớp phủ tối để chữ nổi bật */
      z-index: 1;
    }

    .page-nohu90__hero-content {
      position: relative;
      z-index: 2;
      padding: 20px;
    }

    .page-nohu90__hero-title {
      font-size: 2.2em;
      margin-bottom: 10px;
      font-weight: bold;
      color: var(--page-nohu90-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-nohu90__hero-subtitle {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: var(--page-nohu90-text-light);
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
    }

    .page-nohu90__promotion-button {
      display: inline-block;
      background-color: var(--page-nohu90-accent-color);
      color: var(--page-nohu90-text-light);
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-nohu90__promotion-button:hover {
      background-color: #c0392b;
      transform: translateY(-2px);
    }

    .page-nohu90__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-nohu90-accent-color);
      color: var(--page-nohu90-text-light);
      padding: 15px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      animation: page-nohu90__pulse 2s infinite;
      transition: background-color 0.3s ease;
      text-align: center;
      line-height: 1.2;
    }

    .page-nohu90__floating-button:hover {
      background-color: #c0392b;
    }

    @keyframes page-nohu90__pulse {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.05);
      }
      100% {
        transform: scale(1);
      }
    }

    .page-nohu90__section {
      background-color: var(--page-nohu90-text-light);
      padding: 30px 20px;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-nohu90__section-title {
      font-size: 2em;
      color: var(--page-nohu90-secondary-color);
      text-align: center;
      margin-bottom: 25px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-nohu90__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 4px;
      background-color: var(--page-nohu90-primary-color);
      border-radius: 2px;
    }

    .page-nohu90__content-text {
      font-size: 1.1em;
      line-height: 1.8;
      margin-bottom: 15px;
      color: var(--page-nohu90-text-dark);
    }

    .page-nohu90__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .page-nohu90__game-card {
      background-color: var(--page-nohu90-background-light);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-nohu90__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-nohu90__game-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 180px; /* Cố định chiều cao cho ảnh */
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #eee;
    }

    .page-nohu90__game-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      max-width: 100%;
      transition: transform 0.3s ease;
    }

    .page-nohu90__game-card:hover .page-nohu90__game-image {
      transform: scale(1.05);
    }

    .page-nohu90__game-info {
      padding: 15px;
    }

    .page-nohu90__game-title {
      font-size: 1.3em;
      color: var(--page-nohu90-secondary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-nohu90__game-description {
      font-size: 0.95em;
      color: #666;
      margin-bottom: 15px;
    }

    .page-nohu90__game-button {
      background-color: var(--page-nohu90-primary-color);
      color: var(--page-nohu90-secondary-color);
      padding: 10px 20px;
      border-radius: 25px;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.9em;
      transition: background-color 0.3s ease;
      display: inline-block;
      border: none;
      cursor: pointer;
    }

    .page-nohu90__game-button:hover {
      background-color: #e6b800;
    }

    .page-nohu90__feature-list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
      display: grid;
      grid-template-columns: 1fr;
      gap: 15px;
    }

    .page-nohu90__feature-item {
      background-color: #e0f7fa; /* Màu xanh nhạt */
      padding: 15px 20px;
      border-left: 5px solid var(--page-nohu90-primary-color);
      border-radius: 5px;
      font-size: 1em;
      color: var(--page-nohu90-secondary-color);
      display: flex;
      align-items: center;
    }

    .page-nohu90__feature-item strong {
      color: var(--page-nohu90-accent-color);
      margin-right: 8px;
    }

    .page-nohu90__faq-section {
      background-color: var(--page-nohu90-background-light);
      padding: 30px 20px;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }

    .page-nohu90__faq-item {
      border: 1px solid var(--page-nohu90-border-color);
      margin-bottom: 10px;
      border-radius: 8px;
      overflow: hidden;
    }

    .page-nohu90__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px;
      background-color: #fff;
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      font-weight: bold;
      color: var(--page-nohu90-secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-nohu90__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-nohu90__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-nohu90-secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-nohu90__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-nohu90-primary-color);
      pointer-events: none; /* Prevent toggle icon from blocking click event */
      transition: transform 0.3s ease;
    }

    .page-nohu90__faq-item.active .page-nohu90__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
      content: '−'; /* Change to minus sign */
    }

    .page-nohu90__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: #fefefe;
      color: var(--page-nohu90-text-dark);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      font-size: 1em;
    }

    .page-nohu90__faq-item.active .page-nohu90__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to show content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-nohu90__cta-section {
      background-color: var(--page-nohu90-background-dark);
      color: var(--page-nohu90-text-light);
      text-align: center;
      padding: 40px 20px;
      border-radius: 8px;
      margin-top: 20px;
    }

    .page-nohu90__cta-title {
      font-size: 2.5em;
      color: var(--page-nohu90-primary-color);
      margin-bottom: 15px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-nohu90__cta-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-nohu90__hero-section {
        height: 400px;
        padding-top: 10px; /* Đảm bảo không bị che bởi header cố định */
      }

      .page-nohu90__hero-title {
        font-size: 3.5em;
      }

      .page-nohu90__hero-subtitle {
        font-size: 1.5em;
      }

      .page-nohu90__section {
        padding: 40px 30px;
      }

      .page-nohu90__game-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .page-nohu90__feature-list {
        grid-template-columns: repeat(2, 1fr);
      }
      
      .page-nohu90__cta-title {
        font-size: 3em;
      }

      .page-nohu90__cta-description {
        font-size: 1.3em;
      }
    }

    @media (max-width: 768px) {
      .page-nohu90 {
        padding: 0 10px;
      }

      .page-nohu90__hero-section {
        height: 200px; /* Điều chỉnh chiều cao banner cho di động */
        padding-top: 10px !important; /* Mobile padding-top for fixed header */
      }

      .page-nohu90__hero-title {
        font-size: 1.8em;
      }

      .page-nohu90__hero-subtitle {
        font-size: 1em;
      }

      .page-nohu90__promotion-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-nohu90__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 0.9em;
      }

      .page-nohu90__section-title {
        font-size: 1.8em;
      }

      .page-nohu90__content-text {
        font-size: 1em;
      }

      .page-nohu90__game-grid {
        grid-template-columns: 1fr;
      }

      .page-nohu90__game-image-wrapper {
        height: 150px;
      }

      .page-nohu90__game-title {
        font-size: 1.2em;
      }

      .page-nohu90__faq-question h3 {
        font-size: 1em;
      }

      .page-nohu90__faq-toggle {
        font-size: 1.3em;
      }

      .page-nohu90__faq-answer {
        font-size: 0.9em;
      }

      .page-nohu90__cta-title {
        font-size: 2em;
      }

      .page-nohu90__cta-description {
        font-size: 1em;
      }
      
      /* Image responsive optimization for mobile */
      .page-nohu90 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-nohu90__game-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }