/* Tổng quan và biến */
    .page-nohu90 {
      font-family: 'Arial', sans-serif;
      background-color: #000000;
      color: #ffffff;
      line-height: 1.6;
      overflow-x: hidden;
      padding-bottom: 80px; /* Đảm bảo không bị footer che */
    }

    .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: #0d0d0d;
    }

    .page-nohu90__section-title {
      font-size: 2.5em;
      color: #FFD700; /* Vàng */
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
      text-transform: uppercase;
    }

    .page-nohu90__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 3px;
      background-color: #FFD700;
      border-radius: 2px;
    }

    .page-nohu90__text-highlight {
      color: #FFD700;
      font-weight: bold;
    }

    /* Hero Section */
    .page-nohu90__hero-section {
      position: relative;
      background-color: #1a1a1a;
      padding-top: 150px; /* Khoảng trống cho header cố định */
      padding-bottom: 40px;
      text-align: center;
      overflow: hidden;
    }

    .page-nohu90__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto;
      border-radius: 8px;
      box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    }

    .page-nohu90__hero-content {
      margin-top: 30px;
      padding: 0 15px;
    }

    .page-nohu90__hero-title {
      font-size: 3.2em;
      color: #FFD700;
      margin-bottom: 15px;
      text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-nohu90__hero-subtitle {
      font-size: 1.5em;
      color: #ffffff;
      margin-bottom: 30px;
    }

    .page-nohu90__cta-button {
      display: inline-block;
      background-color: #FFD700; /* Vàng */
      color: #000000;
      padding: 15px 40px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.3em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 5px 15px rgba(255, 215, 0, 0.4);
      border: none;
      cursor: pointer;
    }

    .page-nohu90__cta-button:hover {
      background-color: #e6c200;
      transform: translateY(-3px);
    }

    /* Nút Đăng Ký/Đăng Nhập nổi (Floating Login/Register Button) */
    .page-nohu90__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-nohu90__floating-button {
      background-color: #FFD700;
      color: #000000;
      padding: 12px 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);
      transition: background-color 0.3s ease, transform 0.3s ease;
      text-align: center;
    }

    .page-nohu90__floating-button:hover {
      background-color: #e6c200;
      transform: scale(1.05);
    }

    /* Game Categories Section */
    .page-nohu90__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-nohu90__game-card {
      background-color: #1a1a1a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding-bottom: 20px;
    }

    .page-nohu90__game-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 25px rgba(255, 215, 0, 0.6);
    }

    .page-nohu90__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      border-bottom: 3px solid #FFD700;
    }

    .page-nohu90__game-card-title {
      font-size: 1.8em;
      color: #FFD700;
      margin: 20px 0 10px;
      padding: 0 15px;
    }

    .page-nohu90__game-card-description {
      color: #cccccc;
      font-size: 0.95em;
      padding: 0 15px;
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-nohu90__game-card-link {
      display: inline-block;
      background-color: #FFD700;
      color: #000000;
      padding: 10px 25px;
      border-radius: 25px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      transition: background-color 0.3s ease;
    }

    .page-nohu90__game-card-link:hover {
      background-color: #e6c200;
    }

    /* Game Providers Section */
    .page-nohu90__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 20px;
      margin-top: 40px;
    }

    .page-nohu90__provider-item {
      background-color: #1a1a1a;
      padding: 15px;
      border-radius: 8px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100px;
    }

    .page-nohu90__provider-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(255, 215, 0, 0.4);
    }

    .page-nohu90__provider-logo {
      max-width: 100%;
      max-height: 80px;
      height: auto;
      object-fit: contain;
      display: block;
    }

    /* Game Rankings Section */
    .page-nohu90__ranking-list {
      list-style: none;
      padding: 0;
      margin-top: 40px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .page-nohu90__ranking-item {
      background-color: #1a1a1a;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      display: flex;
      align-items: center;
      text-align: left;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-nohu90__ranking-item:hover {
      transform: translateX(5px);
      box-shadow: 0 6px 18px rgba(255, 215, 0, 0.5);
    }

    .page-nohu90__ranking-number {
      font-size: 2.5em;
      font-weight: bold;
      color: #FFD700;
      margin-right: 15px;
      line-height: 1;
      min-width: 50px;
      text-align: center;
    }

    .page-nohu90__ranking-name {
      font-size: 1.5em;
      color: #ffffff;
      flex-grow: 1;
    }

    /* About Section */
    .page-nohu90__about-content {
      text-align: left;
      margin-top: 20px;
    }

    .page-nohu90__about-content p {
      margin-bottom: 20px;
      color: #cccccc;
      font-size: 1.1em;
    }

    .page-nohu90__about-content ul {
      list-style: disc;
      padding-left: 20px;
      color: #cccccc;
      margin-bottom: 20px;
    }

    .page-nohu90__about-content li {
      margin-bottom: 10px;
    }

    /* FAQ Section */
    .page-nohu90__faq-list {
      margin-top: 40px;
      text-align: left;
    }

    .page-nohu90__faq-item {
      background-color: #1a1a1a;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease;
    }

    .page-nohu90__faq-item:hover {
      background-color: #2a2a2a;
    }

    .page-nohu90__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      user-select: none;
      background-color: #1a1a1a;
      border-bottom: 1px solid #333333;
    }

    .page-nohu90__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: #FFD700;
      pointer-events: none; /* Ngăn chặn sự kiện click trên h3 */
    }

    .page-nohu90__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: #FFD700;
      min-width: 20px;
      text-align: center;
      transition: transform 0.3s ease;
      pointer-events: none; /* Ngăn chặn sự kiện click trên toggle */
    }

    .page-nohu90__faq-item.active .page-nohu90__faq-toggle {
      transform: rotate(45deg);
    }

    .page-nohu90__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: #cccccc;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-nohu90__faq-item.active .page-nohu90__faq-answer {
      max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-nohu90__faq-answer p {
      margin: 0;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-nohu90__hero-title {
        font-size: 2.8em;
      }
      .page-nohu90__hero-subtitle {
        font-size: 1.3em;
      }
      .page-nohu90__section-title {
        font-size: 2em;
      }
      .page-nohu90__game-categories {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      }
    }

    @media (max-width: 768px) {
      .page-nohu90__hero-section {
        padding-top: 120px; /* Điều chỉnh cho mobile header */
      }
      .page-nohu90__hero-title {
        font-size: 2.2em;
      }
      .page-nohu90__hero-subtitle {
        font-size: 1.1em;
      }
      .page-nohu90__cta-button {
        padding: 12px 30px;
        font-size: 1.1em;
      }
      .page-nohu90__section {
        padding: 30px 0;
      }
      .page-nohu90__section-title {
        font-size: 1.8em;
      }
      .page-nohu90__game-categories {
        grid-template-columns: 1fr;
      }
      .page-nohu90__game-card-title {
        font-size: 1.5em;
      }
      .page-nohu90__providers-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      }
      .page-nohu90__ranking-list {
        grid-template-columns: 1fr;
      }
      .page-nohu90__floating-buttons {
        bottom: 15px;
        right: 15px;
        gap: 8px;
      }
      .page-nohu90__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }
      .page-nohu90__about-content p, .page-nohu90__about-content li {
        font-size: 1em;
      }
      .page-nohu90__faq-question {
        padding: 15px 20px;
      }
      .page-nohu90__faq-question h3 {
        font-size: 1.1em;
      }
      .page-nohu90__faq-answer {
        padding: 0 20px;
      }
      .page-nohu90__faq-item.active .page-nohu90__faq-answer {
        padding: 15px 20px !important;
      }
    }

    @media (max-width: 480px) {
      .page-nohu90__hero-title {
        font-size: 1.8em;
      }
      .page-nohu90__hero-subtitle {
        font-size: 0.9em;
      }
      .page-nohu90__cta-button {
        padding: 10px 25px;
        font-size: 1em;
      }
      .page-nohu90__section-title {
        font-size: 1.5em;
      }
      .page-nohu90__floating-buttons {
        bottom: 10px;
        right: 10px;
        gap: 5px;
      }
      .page-nohu90__floating-button {
        padding: 8px 15px;
        font-size: 0.9em;
      }
    }

    /* Image responsive optimization */
    .page-nohu90 img {
      max-width: 100%;
      height: auto;
      display: block; /* Remove extra space below images */
    }
    .page-nohu90 .page-nohu90__game-card-image,
    .page-nohu90 .page-nohu90__provider-logo,
    .page-nohu90 .page-nohu90__hero-image {
      width: 100%; /* Ensure images take full width of their container */
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
    }

    @media (max-width: 768px) {
      .page-nohu90 .page-nohu90__game-card-image,
      .page-nohu90 .page-nohu90__provider-logo,
      .page-nohu90 .page-nohu90__hero-image {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }