:root {
      --primary-color: #FFD700; /* Vàng kim loại */
      --secondary-color: #000000; /* Đen */
      --accent-color: #FF4500; /* Cam đỏ */
      --text-color-light: #FFFFFF;
      --text-color-dark: #333333;
      --bg-dark-gradient: linear-gradient(135deg, #1a1a1a, #0a0a0a);
      --bg-light-gradient: linear-gradient(135deg, #333333, #1a1a1a);
      --border-radius-lg: 15px;
      --border-radius-sm: 8px;
      --padding-section: 40px 20px;
      --padding-mobile-section: 25px 15px;
    }

    .page-kingnohu {
      font-family: 'Arial', sans-serif;
      color: var(--text-color-light);
      background: var(--bg-dark-gradient);
      line-height: 1.6;
      padding-top: 10px; /* Nhỏ hơn để body padding-top xử lý chính */
    }

    .page-kingnohu__hero-section {
      position: relative;
      width: 100%;
      height: 400px; /* Tối ưu cho di động */
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      padding: var(--padding-mobile-section);
      box-sizing: border-box;
    }

    .page-kingnohu__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
    }

    .page-kingnohu__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      padding: 20px;
      background: rgba(0, 0, 0, 0.6);
      border-radius: var(--border-radius-lg);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    .page-kingnohu__hero-title {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-kingnohu__hero-subtitle {
      font-size: 1.2em;
      color: var(--text-color-light);
      margin-bottom: 20px;
    }

    .page-kingnohu__button {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--accent-color);
      color: var(--text-color-light);
      text-decoration: none;
      border-radius: var(--border-radius-sm);
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1em;
    }

    .page-kingnohu__button:hover {
      background-color: #E63900;
      transform: translateY(-2px);
    }

    .page-kingnohu__section {
      padding: var(--padding-section);
      text-align: center;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-kingnohu__section-title {
      font-size: 2em;
      color: var(--primary-color);
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-kingnohu__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 80px;
      height: 3px;
      background-color: var(--accent-color);
    }

    .page-kingnohu__text-content {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: #E0E0E0;
    }

    .page-kingnohu__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
      justify-content: center;
    }

    .page-kingnohu__grid-item {
      background: var(--bg-light-gradient);
      border-radius: var(--border-radius-lg);
      padding: 25px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--primary-color);
    }

    .page-kingnohu__grid-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    }

    .page-kingnohu__grid-item-icon {
      width: 80px;
      height: 80px;
      margin-bottom: 15px;
      object-fit: contain;
      border-radius: var(--border-radius-sm);
    }

    .page-kingnohu__grid-item-title {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-kingnohu__game-gallery {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-kingnohu__game-card {
      background: var(--bg-light-gradient);
      border-radius: var(--border-radius-lg);
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      width: 100%;
      max-width: 320px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      border: 1px solid var(--primary-color);
    }

    .page-kingnohu__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    }

    .page-kingnohu__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-kingnohu__game-card-content {
      padding: 15px;
      text-align: center;
    }

    .page-kingnohu__game-card-title {
      font-size: 1.2em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-kingnohu__game-card-description {
      font-size: 0.9em;
      color: #CCCCCC;
      margin-bottom: 15px;
    }

    .page-kingnohu__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-kingnohu__floating-button {
      padding: 10px 20px;
      border-radius: 50px;
      font-weight: bold;
      text-align: center;
      text-decoration: none;
      color: var(--text-color-light);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease, background-color 0.3s ease;
      font-size: 1em;
    }

    .page-kingnohu__floating-button:hover {
      transform: scale(1.05);
    }

    .page-kingnohu__floating-button--register {
      background-color: var(--accent-color);
    }

    .page-kingnohu__floating-button--register:hover {
      background-color: #E63900;
    }

    .page-kingnohu__floating-button--login {
      background-color: var(--primary-color);
      color: var(--secondary-color);
    }

    .page-kingnohu__floating-button--login:hover {
      background-color: #FFC107;
    }

    .page-kingnohu__faq-section {
      padding: var(--padding-section);
      max-width: 900px;
      margin: 0 auto;
      text-align: left;
    }

    .page-kingnohu__faq-item {
      background: var(--bg-light-gradient);
      border: 1px solid var(--primary-color);
      border-radius: var(--border-radius-sm);
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .page-kingnohu__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      user-select: none;
      background-color: #2a2a2a;
      transition: background-color 0.3s ease;
    }

    .page-kingnohu__faq-question:hover {
      background-color: #3a3a3a;
    }

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

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

    .page-kingnohu__faq-item.active .page-kingnohu__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or similar */
      color: var(--primary-color);
    }

    .page-kingnohu__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #E0E0E0;
    }

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

    /* Responsive Adjustments */
    @media (max-width: 768px) {
      .page-kingnohu__hero-section {
        height: 300px;
        padding: var(--padding-mobile-section);
      }

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

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

      .page-kingnohu__section {
        padding: var(--padding-mobile-section);
      }

      .page-kingnohu__section-title {
        font-size: 1.6em;
      }

      .page-kingnohu__text-content {
        font-size: 0.95em;
      }

      .page-kingnohu__grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-kingnohu__grid-item {
        padding: 20px;
      }

      .page-kingnohu__game-gallery {
        gap: 15px;
      }

      .page-kingnohu__game-card {
        max-width: 95%;
      }

      .page-kingnohu__game-card-image {
        height: 180px;
      }

      .page-kingnohu__game-card-title {
        font-size: 1.1em;
      }

      .page-kingnohu__faq-section {
        padding: var(--padding-mobile-section);
      }

      .page-kingnohu__faq-question {
        padding: 12px 15px;
      }

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

      .page-kingnohu__faq-answer {
        padding: 0 15px;
      }

      .page-kingnohu__faq-item.active .page-kingnohu__faq-answer {
        padding: 15px !important;
      }

      /* Responsive for all list items */
      .page-kingnohu ul {
        list-style: none;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
      }

      .page-kingnohu ul li {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
    }

    @media (min-width: 769px) {
      .page-kingnohu__hero-section {
        height: 500px;
      }

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

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

      .page-kingnohu__floating-buttons {
        flex-direction: row;
        bottom: 30px;
        right: 30px;
      }

      .page-kingnohu__floating-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
    }