:root {
      --primary-color: #e44d26; /* Cam đỏ */
      --secondary-color: #333;
      --accent-color: #ffcc00; /* Vàng */
      --text-color-light: #f8f8f8;
      --text-color-dark: #333;
      --bg-dark: #1a1a1a;
      --bg-light: #f0f2f5;
    }

    .page-vn1 {
      font-family: 'Arial', sans-serif;
      color: var(--text-color-light);
      background-color: var(--bg-dark);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    /* Fixed header offset */
    .page-vn1__hero-section {
      padding-top: 10px; /* Small decorative top padding, assuming body has header offset */
    }
    
    .page-vn1__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-vn1__floating-button {
      background-color: var(--primary-color);
      color: var(--text-color-light);
      border: none;
      padding: 12px 25px;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      text-align: center;
      box-sizing: border-box;
      white-space: nowrap;
    }

    .page-vn1__floating-button:hover {
      background-color: #f76c46;
      transform: translateY(-2px);
    }

    .page-vn1__section {
      padding: 40px 20px;
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .page-vn1__section--dark {
      background-color: var(--bg-dark);
      color: var(--text-color-light);
    }

    .page-vn1__section--light {
      background-color: var(--bg-light);
      color: var(--text-color-dark);
    }

    .page-vn1__section-title {
      font-size: 2.5em;
      color: var(--primary-color);
      margin-bottom: 30px;
      font-weight: bold;
      text-transform: uppercase;
    }

    .page-vn1__section-subtitle {
      font-size: 1.2em;
      margin-bottom: 40px;
      color: #ccc;
    }

    .page-vn1__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('[GALLERY:hero:1920x1080:gaming,casino,hero,vn1]') no-repeat center center/cover;
      padding: 80px 20px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 60vh;
      color: var(--text-color-light);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-vn1__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      color: var(--accent-color);
      text-transform: uppercase;
      line-height: 1.2;
    }

    .page-vn1__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
    }

    .page-vn1__cta-button {
      background-color: var(--primary-color);
      color: var(--text-color-light);
      border: none;
      padding: 15px 35px;
      border-radius: 5px;
      font-size: 1.2em;
      font-weight: bold;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      text-decoration: none;
      display: inline-block;
      box-sizing: border-box;
    }

    .page-vn1__cta-button:hover {
      background-color: #f76c46;
      transform: translateY(-2px);
    }

    .page-vn1__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 40px;
    }

    .page-vn1__category-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      color: var(--text-color-light);
      border: 1px solid rgba(255, 255, 255, 0.1);
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
    }

    .page-vn1__category-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    }

    .page-vn1__category-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-vn1__category-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-vn1__category-title {
      font-size: 1.6em;
      color: var(--accent-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-vn1__category-description {
      font-size: 0.95em;
      color: #bbb;
      margin-bottom: 15px;
    }

    .page-vn1__promotion-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-vn1__promotion-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      color: var(--text-color-light);
      border: 1px solid rgba(255, 255, 255, 0.1);
      box-sizing: border-box;
    }

    .page-vn1__promotion-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    }

    .page-vn1__promotion-image {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .page-vn1__promotion-content {
      padding: 20px;
    }

    .page-vn1__promotion-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-vn1__promotion-description {
      font-size: 0.95em;
      color: #bbb;
      margin-bottom: 15px;
    }

    .page-vn1__faq-section {
      background-color: #222;
      padding: 60px 20px;
      max-width: 900px;
      margin: 40px auto;
      border-radius: 10px;
      box-shadow: 0 5px 25px rgba(0, 0, 0, 0.4);
      text-align: left;
    }

    .page-vn1__faq-title {
      font-size: 2.2em;
      color: var(--accent-color);
      margin-bottom: 30px;
      text-align: center;
      font-weight: bold;
    }

    .page-vn1__faq-item {
      margin-bottom: 15px;
      border: 1px solid #3a3a3a;
      border-radius: 8px;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-vn1__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #333;
      padding: 15px 20px;
      cursor: pointer;
      user-select: none;
      font-size: 1.15em;
      font-weight: bold;
      color: var(--text-color-light);
      transition: background-color 0.3s ease;
    }

    .page-vn1__faq-question:hover {
      background-color: #444;
    }

    .page-vn1__faq-question h3 {
      margin: 0;
      color: var(--text-color-light);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-vn1__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click event */
    }

    .page-vn1__faq-item.active .page-vn1__faq-toggle {
      transform: rotate(45deg);
    }

    .page-vn1__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: #2a2a2a;
      color: #ccc;
      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;
      text-align: justify;
    }

    .page-vn1__faq-item.active .page-vn1__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to accommodate content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-vn1__info-text {
      font-size: 1.1em;
      color: #bbb;
      max-width: 800px;
      margin: 20px auto 0 auto;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .page-vn1__hero-title {
        font-size: 3em;
      }
      .page-vn1__section-title {
        font-size: 2em;
      }
    }

    @media (max-width: 768px) {
      .page-vn1__hero-section {
        padding: 60px 15px;
        min-height: 50vh;
      }
      .page-vn1__hero-title {
        font-size: 2.5em;
      }
      .page-vn1__hero-description {
        font-size: 1.1em;
      }
      .page-vn1__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      .page-vn1__section {
        padding: 30px 15px;
      }
      .page-vn1__section-title {
        font-size: 1.8em;
      }
      .page-vn1__section-subtitle {
        font-size: 1em;
      }
      .page-vn1__game-categories,
      .page-vn1__promotion-grid {
        grid-template-columns: 1fr;
      }
      .page-vn1__category-card,
      .page-vn1__promotion-card {
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
        box-sizing: border-box;
        width: 100% !important;
      }
      .page-vn1__category-title,
      .page-vn1__promotion-title {
        font-size: 1.3em;
      }
      .page-vn1__faq-section {
        padding: 30px 15px;
        margin: 20px auto;
      }
      .page-vn1__faq-title {
        font-size: 1.8em;
      }
      .page-vn1__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-vn1__faq-answer {
        padding: 15px 15px !important;
      }
      .page-vn1__info-text {
        font-size: 0.95em;
      }
      .page-vn1__floating-buttons {
        bottom: 15px;
        right: 15px;
        gap: 8px;
      }
      .page-vn1__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }

      /* List item responsive adjustments */
      .page-vn1__game-categories > *,
      .page-vn1__promotion-grid > * {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 15px !important; /* Adjust padding as needed */
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
      }
      .page-vn1__game-categories,
      .page-vn1__promotion-grid {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      /* Image responsive adjustments */
      .page-vn1__category-image,
      .page-vn1__promotion-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
      .page-vn1__category-card img,
      .page-vn1__promotion-card img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-vn1__hero-title {
        font-size: 2em;
      }
      .page-vn1__section-title {
        font-size: 1.6em;
      }
      .page-vn1__floating-buttons {
        bottom: 10px;
        right: 10px;
      }
      .page-vn1__floating-button {
        padding: 8px 15px;
        font-size: 0.9em;
      }
    }