/* Reset và cơ bản */
    .page-nohu90 {
      font-family: 'Arial', sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f8f8f8;
    }

    .page-nohu90__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-nohu90__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-nohu90__section--dark {
      background-color: #2c3e50;
      color: #ecf0f1;
    }

    .page-nohu90__title {
      font-size: 2.5em;
      color: #2c3e50;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-nohu90__title--light {
      color: #ecf0f1;
    }

    .page-nohu90__subtitle {
      font-size: 1.5em;
      color: #555;
      margin-bottom: 30px;
    }

    .page-nohu90__text {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    .page-nohu90__button {
      display: inline-block;
      background-color: #e74c3c; /* Đỏ tươi */
      color: #fff;
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-nohu90__button:hover {
      background-color: #c0392b; /* Đỏ đậm hơn */
    }

    /* Hero Section */
    .page-nohu90__hero-section {
      position: relative;
      background-color: #3498db; /* Xanh dương */
      color: #fff;
      text-align: center;
      padding: 10px 0 60px 0; /* Adjusted padding-top for fixed header */
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 400px; /* Minimum height for better appearance */
    }

    .page-nohu90__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      filter: brightness(0.6); /* Slightly darken background image for text readability */
    }

    .page-nohu90__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 20px;
      background-color: rgba(0, 0, 0, 0.4);
      border-radius: 10px;
      margin-top: 50px; /* Push content down slightly, combined with padding-top on section */
    }

    .page-nohu90__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      line-height: 1.2;
      color: #f1c40f; /* Vàng */
    }

    .page-nohu90__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #ecf0f1;
    }

    /* Floating Login Button */
    .page-nohu90__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: #2ecc71; /* Xanh lá */
      color: #fff;
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.3s ease;
      animation: page-nohu90__pulse 2s infinite;
      border: none;
      cursor: pointer;
    }

    .page-nohu90__floating-button:hover {
      background-color: #27ae60; /* Xanh lá đậm hơn */
      transform: scale(1.05);
    }

    @keyframes page-nohu90__pulse {
      0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.7);
      }
      70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 15px rgba(46, 204, 113, 0);
      }
      100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(46, 204, 113, 0);
      }
    }

    /* Game Categories */
    .page-nohu90__game-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-nohu90__game-card {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .page-nohu90__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .page-nohu90__game-card-image-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for consistency */
    }

    .page-nohu90__game-card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      max-width: 100%; /* Ensure responsiveness */
    }

    .page-nohu90__game-card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-nohu90__game-card-title {
      font-size: 1.4em;
      margin-bottom: 10px;
      color: #34495e;
      font-weight: bold;
    }

    .page-nohu90__game-card-description {
      font-size: 0.95em;
      color: #7f8c8d;
      flex-grow: 1;
      margin-bottom: 15px;
    }

    .page-nohu90__game-card-button {
      background-color: #3498db;
      color: #fff;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
      font-size: 0.9em;
      width: 100%;
      box-sizing: border-box;
    }

    .page-nohu90__game-card-button:hover {
      background-color: #2980b9;
    }

    /* Highlighted Games (Bắn cá, Mạt chược) */
    .page-nohu90__highlight-game {
      display: flex;
      align-items: center;
      gap: 30px;
      text-align: left;
      margin-bottom: 40px;
      flex-direction: column; /* Default to column for mobile */
    }

    .page-nohu90__highlight-game:nth-child(even) {
      flex-direction: column-reverse; /* Reverse order for even items on mobile */
    }

    .page-nohu90__highlight-game-image-wrapper {
      flex: 1;
      min-width: 300px;
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .page-nohu90__highlight-game-image {
      width: 100%;
      height: auto;
      display: block;
      max-width: 100%; /* Ensure responsiveness */
    }

    .page-nohu90__highlight-game-content {
      flex: 1;
      padding: 20px 0;
    }

    .page-nohu90__highlight-game-title {
      font-size: 2em;
      color: #e74c3c;
      margin-bottom: 15px;
      font-weight: bold;
    }

    .page-nohu90__highlight-game-description {
      font-size: 1.1em;
      color: #333;
      margin-bottom: 20px;
    }

    /* How-to Guide */
    .page-nohu90__guide-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-nohu90__guide-step {
      background-color: #fff;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
      padding: 30px;
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-nohu90__guide-step:hover {
      transform: translateY(-5px);
    }

    .page-nohu90__guide-step-icon-wrapper {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
      height: 150px; /* Fixed height for icons */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-nohu90__guide-step-icon {
      width: 100%;
      height: 100%;
      object-fit: contain; /* Ensure icons fit without cropping */
      max-width: 100%;
      display: block;
    }

    .page-nohu90__guide-step-title {
      font-size: 1.3em;
      color: #2980b9;
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-nohu90__guide-step-description {
      font-size: 0.95em;
      color: #555;
    }

    /* Promotions Section */
    .page-nohu90__promo-card {
      background-color: #f1c40f; /* Vàng */
      color: #2c3e50;
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      margin-top: 30px;
      text-align: center;
    }

    .page-nohu90__promo-title {
      font-size: 2.2em;
      margin-bottom: 15px;
      color: #c0392b;
      font-weight: bold;
    }

    .page-nohu90__promo-text {
      font-size: 1.2em;
      margin-bottom: 25px;
      color: #34495e;
    }

    .page-nohu90__promo-button {
      background-color: #e74c3c;
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      font-size: 1.2em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-nohu90__promo-button:hover {
      background-color: #c0392b;
    }

    /* FAQ Section */
    .page-nohu90__faq-list {
      margin-top: 30px;
      text-align: left;
    }

    .page-nohu90__faq-item {
      background-color: #fff;
      border: 1px solid #ddd;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-nohu90__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: #f9f9f9;
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      font-weight: bold;
      color: #34495e;
      transition: background-color 0.3s ease;
    }

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

    .page-nohu90__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-nohu90__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
      color: #e74c3c;
    }

    .page-nohu90__faq-item.active .page-nohu90__faq-toggle {
      transform: rotate(45deg); /* Visually indicate open state */
    }

    .page-nohu90__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px; /* Initial padding */
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #555;
      font-size: 1em;
      text-align: left;
    }

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

    /* Call to Action */
    .page-nohu90__cta-section {
      background-color: #e74c3c;
      color: #fff;
      padding: 50px 0;
      text-align: center;
    }

    .page-nohu90__cta-title {
      font-size: 2.5em;
      margin-bottom: 20px;
      font-weight: bold;
    }

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

    /* Responsive Design */
    @media (max-width: 992px) {
      .page-nohu90__hero-title {
        font-size: 2.5em;
      }
      .page-nohu90__hero-description {
        font-size: 1.1em;
      }
      .page-nohu90__title {
        font-size: 2em;
      }
      .page-nohu90__subtitle {
        font-size: 1.3em;
      }
      .page-nohu90__highlight-game {
        flex-direction: column !important; /* Ensure column layout on smaller screens */
      }
      .page-nohu90__highlight-game:nth-child(even) {
        flex-direction: column !important; /* Reset for even items */
      }
      .page-nohu90__highlight-game-image-wrapper {
        min-width: unset;
      }
    }

    @media (max-width: 768px) {
      .page-nohu90__hero-section {
        padding-top: 10px !important; /* Ensure content is not hidden by header */
        min-height: 300px;
      }
      .page-nohu90__hero-content {
        margin-top: 20px;
      }
      .page-nohu90__hero-title {
        font-size: 2em;
      }
      .page-nohu90__hero-description {
        font-size: 1em;
      }
      .page-nohu90__title {
        font-size: 1.8em;
      }
      .page-nohu90__subtitle {
        font-size: 1.1em;
      }
      .page-nohu90__button, .page-nohu90__promo-button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-nohu90__floating-button {
        padding: 12px 20px;
        font-size: 1em;
        bottom: 15px;
        right: 15px;
      }
      .page-nohu90__game-grid {
        grid-template-columns: 1fr;
      }
      .page-nohu90__game-card-image-wrapper {
        height: 180px;
      }
      .page-nohu90__highlight-game-image-wrapper {
        width: 100%;
      }
      .page-nohu90__highlight-game-title {
        font-size: 1.8em;
      }
      .page-nohu90__highlight-game-description {
        font-size: 1em;
      }
      .page-nohu90__guide-steps {
        grid-template-columns: 1fr;
      }
      .page-nohu90__promo-title {
        font-size: 1.8em;
      }
      .page-nohu90__promo-text {
        font-size: 1em;
      }
      .page-nohu90__faq-question {
        font-size: 1em;
        padding: 15px;
      }
      .page-nohu90__faq-answer {
        padding: 0 15px;
      }
      .page-nohu90__faq-item.active .page-nohu90__faq-answer {
        padding: 15px 15px !important;
      }
      .page-nohu90__cta-title {
        font-size: 2em;
      }
      .page-nohu90__cta-text {
        font-size: 1em;
      }

      /* Image responsive optimization */
      .page-nohu90 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-nohu90__game-card-image-wrapper,
      .page-nohu90__highlight-game-image-wrapper,
      .page-nohu90__guide-step-icon-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-nohu90__hero-title {
        font-size: 1.8em;
      }
      .page-nohu90__hero-description {
        font-size: 0.9em;
      }
      .page-nohu90__game-card-title {
        font-size: 1.2em;
      }
      .page-nohu90__game-card-description {
        font-size: 0.85em;
      }
      .page-nohu90__guide-step-title {
        font-size: 1.1em;
      }
      .page-nohu90__guide-step-description {
        font-size: 0.85em;
      }
    }