:root {
      --page-66-biz-primary-color: #e44d26; /* Cam đỏ */
      --page-66-biz-secondary-color: #333; /* Đen xám */
      --page-66-biz-accent-color: #f7b000; /* Vàng cam */
      --page-66-biz-text-color: #333;
      --page-66-biz-light-bg: #f5f5f5;
      --page-66-biz-white: #ffffff;
      --page-66-biz-dark-text: #222;
    }

    .page-66-biz {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-66-biz-text-color);
      background-color: var(--page-66-biz-light-bg);
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-66-biz__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-66-biz__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-66-biz__section--light-bg {
      background-color: var(--page-66-biz-light-bg);
    }

    .page-66-biz__section--dark-bg {
      background-color: var(--page-66-biz-secondary-color);
      color: var(--page-66-biz-white);
    }

    .page-66-biz__heading {
      font-size: 2.5em;
      color: var(--page-66-biz-primary-color);
      margin-bottom: 20px;
      text-align: center;
      font-weight: bold;
    }

    .page-66-biz__heading--white {
      color: var(--page-66-biz-white);
    }

    .page-66-biz__subheading {
      font-size: 1.8em;
      color: var(--page-66-biz-dark-text);
      margin-bottom: 15px;
      text-align: center;
    }

    .page-66-biz__paragraph {
      font-size: 1.1em;
      margin-bottom: 20px;
      text-align: center;
    }

    .page-66-biz__hero-section {
      background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('[GALLERY:hero:1920x1080:gaming,abstract,light]') no-repeat center center/cover;
      color: var(--page-66-biz-white);
      padding: 80px 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 60vh;
      position: relative;
      padding-top: 10px; /* Small decorative padding, relying on body padding for header offset */
    }

    .page-66-biz__hero-content {
      max-width: 800px;
      text-align: center;
      z-index: 1;
    }

    .page-66-biz__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      color: var(--page-66-biz-accent-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-66-biz__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      line-height: 1.5;
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    }

    .page-66-biz__floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 15px;
      background-color: rgba(0, 0, 0, 0.8);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      box-sizing: border-box;
    }

    .page-66-biz__floating-button {
      background-color: var(--page-66-biz-primary-color);
      color: var(--page-66-biz-white);
      border: none;
      padding: 12px 25px;
      font-size: 1.1em;
      border-radius: 30px;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.2s ease;
      font-weight: bold;
      flex: 1;
      margin: 0 5px;
      max-width: 180px;
      text-decoration: none;
      display: inline-block;
    }

    .page-66-biz__floating-button:hover {
      background-color: #ff6a3d;
      transform: translateY(-2px);
    }

    .page-66-biz__floating-button--secondary {
      background-color: var(--page-66-biz-accent-color);
    }

    .page-66-biz__floating-button--secondary:hover {
      background-color: #ffc93d;
    }

    .page-66-biz__products-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-66-biz__product-card {
      background-color: var(--page-66-biz-white);
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
    }

    .page-66-biz__product-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
    }

    .page-66-biz__product-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      background-color: #eee;
    }

    .page-66-biz__product-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      max-width: 100%; /* Ensure image is responsive */
      box-sizing: border-box; /* Include padding/border in width */
    }

    .page-66-biz__product-content {
      padding: 20px;
    }

    .page-66-biz__product-title {
      font-size: 1.4em;
      color: var(--page-66-biz-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-66-biz__product-description {
      font-size: 1em;
      color: var(--page-66-biz-dark-text);
      line-height: 1.5;
    }

    .page-66-biz__promo-list {
      list-style: none;
      padding: 0;
      margin-top: 30px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .page-66-biz__promo-item {
      background-color: var(--page-66-biz-white);
      padding: 25px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      text-align: left;
      display: flex;
      align-items: flex-start;
      box-sizing: border-box;
    }

    .page-66-biz__promo-icon {
      font-size: 2em;
      color: var(--page-66-biz-primary-color);
      margin-right: 15px;
      line-height: 1;
    }

    .page-66-biz__promo-details {
      flex-grow: 1;
    }

    .page-66-biz__promo-title {
      font-size: 1.3em;
      color: var(--page-66-biz-primary-color);
      margin-bottom: 8px;
      font-weight: bold;
    }

    .page-66-biz__promo-description {
      font-size: 1em;
      color: var(--page-66-biz-dark-text);
    }

    .page-66-biz__info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-66-biz__info-card {
      background-color: var(--page-66-biz-white);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      text-align: center;
      box-sizing: border-box;
    }

    .page-66-biz__info-icon {
      font-size: 3em;
      color: var(--page-66-biz-accent-color);
      margin-bottom: 15px;
    }

    .page-66-biz__info-title {
      font-size: 1.4em;
      color: var(--page-66-biz-primary-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-66-biz__info-text {
      font-size: 1em;
      color: var(--page-66-biz-dark-text);
    }

    .page-66-biz__partner-logos {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 30px;
    }

    .page-66-biz__partner-logo-wrapper {
      background-color: var(--page-66-biz-white);
      padding: 15px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      width: 150px; /* Adjust size as needed */
      height: 80px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-sizing: border-box;
      transition: transform 0.2s ease;
    }

    .page-66-biz__partner-logo-wrapper:hover {
      transform: translateY(-3px);
    }

    .page-66-biz__partner-logo {
      max-width: 100%;
      max-height: 100%;
      object-fit: contain;
      display: block;
      /* No filter for color change */
    }

    .page-66-biz__cta-section {
      background-color: var(--page-66-biz-primary-color);
      color: var(--page-66-biz-white);
      padding: 60px 15px;
      text-align: center;
    }

    .page-66-biz__cta-title {
      font-size: 2.5em;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .page-66-biz__cta-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-66-biz__cta-button {
      background-color: var(--page-66-biz-accent-color);
      color: var(--page-66-biz-dark-text);
      border: none;
      padding: 15px 40px;
      font-size: 1.3em;
      border-radius: 30px;
      cursor: pointer;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      display: inline-block;
    }

    .page-66-biz__cta-button:hover {
      background-color: #ffc93d;
      transform: translateY(-3px);
    }

    /* FAQ Section */
    .page-66-biz__faq-section {
      background-color: var(--page-66-biz-white);
    }

    .page-66-biz__faq-list {
      margin-top: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      text-align: left;
    }

    .page-66-biz__faq-item {
      border: 1px solid #ddd;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-66-biz__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: var(--page-66-biz-light-bg);
      cursor: pointer;
      user-select: none;
      font-size: 1.2em;
      color: var(--page-66-biz-dark-text);
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-66-biz__faq-question:hover {
      background-color: #e9e9e9;
    }

    .page-66-biz__faq-question h3 {
      margin: 0;
      flex-grow: 1;
      pointer-events: none; /* Allow clicks on parent div */
      color: var(--page-66-biz-primary-color);
      font-size: 1em; /* Adjust to fit parent div font size */
    }

    .page-66-biz__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      margin-left: 15px;
      color: var(--page-66-biz-primary-color);
      pointer-events: none; /* Allow clicks on parent div */
      transition: transform 0.3s ease;
    }

    .page-66-biz__faq-item.active .page-66-biz__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
    }

    .page-66-biz__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: var(--page-66-biz-white);
      color: var(--page-66-biz-text-color);
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
    }

    .page-66-biz__faq-item.active .page-66-biz__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px !important;
      opacity: 1;
    }

    .page-66-biz__faq-answer p {
      margin: 0 0 10px 0;
      word-wrap: break-word; /* Ensure text wraps */
      overflow-wrap: break-word;
    }
    .page-66-biz__faq-answer p:last-child {
      margin-bottom: 0;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-66-biz__hero-title {
        font-size: 2.5em;
      }

      .page-66-biz__hero-description {
        font-size: 1.1em;
      }

      .page-66-biz__heading {
        font-size: 2em;
      }

      .page-66-biz__subheading {
        font-size: 1.5em;
      }

      .page-66-biz__products-grid,
      .page-66-biz__promo-list,
      .page-66-biz__info-grid {
        grid-template-columns: 1fr;
      }

      .page-66-biz__product-card,
      .page-66-biz__promo-item,
      .page-66-biz__info-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-66-biz__promo-item, .page-66-biz__info-card {
        padding: 20px 15px;
      }

      .page-66-biz__promo-icon {
        font-size: 1.8em;
      }

      .page-66-biz__partner-logo-wrapper {
        width: 120px;
        height: 70px;
      }

      .page-66-biz__cta-title {
        font-size: 2em;
      }

      .page-66-biz__cta-description {
        font-size: 1em;
      }

      .page-66-biz__cta-button {
        padding: 12px 30px;
        font-size: 1.1em;
      }

      .page-66-biz__floating-buttons {
        padding: 8px 10px;
      }

      .page-66-biz__floating-button {
        padding: 10px 15px;
        font-size: 1em;
      }

      .page-66-biz__faq-question {
        font-size: 1.1em;
        padding: 15px;
      }
      .page-66-biz__faq-answer {
        padding: 15px !important;
      }
    }

    @media (max-width: 480px) {
      .page-66-biz__hero-title {
        font-size: 2em;
      }
      .page-66-biz__hero-description {
        font-size: 0.95em;
      }
      .page-66-biz__floating-button {
        padding: 8px 10px;
        font-size: 0.9em;
      }
    }

    /* Images responsive styles */
    .page-66-biz img {
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
      display: block;
    }
    @media (max-width: 768px) {
      .page-66-biz img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-66-biz__product-image-wrapper,
      .page-66-biz__partner-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
    }