:root {
      --primary-color: #ffcc00; /* Vàng sáng */
      --secondary-color: #333333; /* Đen xám */
      --accent-color: #e60000; /* Đỏ */
      --text-color: #ffffff; /* Trắng */
      --dark-bg: #1a1a1a; /* Nền tối */
      --light-bg: #2a2a2a; /* Nền sáng hơn */
      --button-hover-color: #ffdd33;
      --border-color: #555555;
    }

    .page-66789 {
      font-family: 'Arial', sans-serif;
      color: var(--text-color);
      background-color: var(--dark-bg);
      line-height: 1.6;
      padding-top: 10px; /* Minimal padding-top as body already has header offset */
      overflow-x: hidden;
    }

    .page-66789__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-66789__header-brand {
      text-align: center;
      padding: 20px 0;
      background-color: var(--secondary-color);
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-66789__header-brand h1 {
      color: var(--primary-color);
      font-size: 2.5em;
      margin: 0;
      text-transform: uppercase;
      letter-spacing: 2px;
    }

    .page-66789__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-66789__floating-button {
      background-color: var(--accent-color);
      color: var(--text-color);
      border: none;
      padding: 12px 25px;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
      transition: background-color 0.3s ease, transform 0.2s ease;
      min-width: 120px;
      text-align: center;
    }

    .page-66789__floating-button:hover {
      background-color: #cc0000;
      transform: translateY(-2px);
    }

    .page-66789__hero-section {
      background: var(--light-bg);
      padding: 60px 20px;
      text-align: center;
      border-radius: 8px;
      margin-bottom: 30px;
      position: relative;
      overflow: hidden;
    }

    .page-66789__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 0;
    }

    .page-66789__hero-content {
      position: relative;
      z-index: 1;
    }

    .page-66789__hero-content h2 {
      font-size: 2.8em;
      color: var(--primary-color);
      margin-bottom: 15px;
      line-height: 1.2;
    }

    .page-66789__hero-content p {
      font-size: 1.3em;
      max-width: 800px;
      margin: 0 auto 30px;
      color: var(--text-color);
    }

    .page-66789__promo-link {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--secondary-color);
      padding: 15px 40px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.2em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    }

    .page-66789__promo-link:hover {
      background-color: var(--button-hover-color);
      transform: translateY(-3px);
    }

    .page-66789__section-title {
      font-size: 2.2em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-66789__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: 0;
      width: 80px;
      height: 4px;
      background-color: var(--accent-color);
      border-radius: 2px;
    }

    .page-66789__about-section p {
      font-size: 1.1em;
      text-align: center;
      max-width: 900px;
      margin: 0 auto 40px;
      color: #ccc;
    }

    .page-66789__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-bottom: 50px;
    }

    .page-66789__product-item {
      background-color: var(--light-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      text-align: center;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-66789__product-item:hover {
      transform: translateY(-5px);
    }

    .page-66789__product-image {
      width: 100%;
      height: 250px;
      object-fit: cover;
      border-bottom: 3px solid var(--primary-color);
    }

    .page-66789__product-content {
      padding: 20px;
      flex-grow: 1;
    }

    .page-66789__product-content h3 {
      font-size: 1.6em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-66789__product-content p {
      font-size: 1em;
      color: #bbb;
      line-height: 1.5;
    }

    .page-66789__product-button {
      display: inline-block;
      background-color: var(--accent-color);
      color: var(--text-color);
      padding: 10px 20px;
      border-radius: 25px;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.95em;
      margin-top: 15px;
      transition: background-color 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-66789__product-button:hover {
      background-color: #cc0000;
    }

    .page-66789__promotion-card {
      background-color: var(--light-bg);
      border-radius: 10px;
      padding: 30px;
      margin-bottom: 30px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      text-align: center;
    }

    .page-66789__promotion-card h3 {
      color: var(--primary-color);
      font-size: 2em;
      margin-bottom: 15px;
    }

    .page-66789__promotion-card p {
      font-size: 1.1em;
      color: #ccc;
      margin-bottom: 20px;
    }

    .page-66789__news-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-bottom: 50px;
    }

    .page-66789__news-item {
      background-color: var(--light-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease;
    }

    .page-66789__news-item:hover {
      transform: translateY(-5px);
    }

    .page-66789__news-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .page-66789__news-content {
      padding: 20px;
    }

    .page-66789__news-content h3 {
      font-size: 1.4em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-66789__news-content p {
      font-size: 0.95em;
      color: #bbb;
      line-height: 1.4;
      margin-bottom: 15px;
    }

    .page-66789__news-date {
      font-size: 0.85em;
      color: #888;
    }

    .page-66789__features-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-bottom: 50px;
      list-style: none;
      padding: 0;
    }

    .page-66789__feature-item {
      background-color: var(--light-bg);
      border-radius: 10px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      border-bottom: 3px solid var(--accent-color);
      box-sizing: border-box;
      word-wrap: break-word;
      overflow-wrap: break-word;
      word-break: break-word;
    }

    .page-66789__feature-item h3 {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-66789__feature-item p {
      font-size: 1em;
      color: #bbb;
    }

    .page-66789__partners-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-bottom: 50px;
      align-items: center;
      justify-content: center;
    }

    .page-66789__partner-logo {
      width: 100%;
      max-width: 200px;
      height: auto;
      object-fit: contain;
      filter: grayscale(80%);
      opacity: 0.7;
      transition: filter 0.3s ease, opacity 0.3s ease;
      margin: 0 auto;
    }

    .page-66789__partner-logo:hover {
      filter: grayscale(0%);
      opacity: 1;
    }

    .page-66789__faq-section {
      margin-bottom: 50px;
    }

    .page-66789__faq-item {
      background-color: var(--light-bg);
      border-radius: 8px;
      margin-bottom: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
      overflow: hidden;
    }

    .page-66789__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: var(--secondary-color);
      cursor: pointer;
      user-select: none;
      font-size: 1.2em;
      font-weight: bold;
      color: var(--primary-color);
      transition: background-color 0.3s ease;
    }

    .page-66789__faq-question:hover {
      background-color: #444444;
    }

    .page-66789__faq-question h3 {
      margin: 0;
      font-size: 1em;
      color: inherit;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-66789__faq-toggle {
      font-size: 1.8em;
      line-height: 1;
      margin-left: 15px;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-66789__faq-item.active .page-66789__faq-toggle {
      transform: rotate(45deg);
    }

    .page-66789__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      color: #bbb;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
    }

    .page-66789__faq-item.active .page-66789__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-66789__cta-section {
      background-color: var(--accent-color);
      padding: 50px 20px;
      text-align: center;
      border-radius: 8px;
      margin-top: 50px;
    }

    .page-66789__cta-section h2 {
      color: var(--text-color);
      font-size: 2.5em;
      margin-bottom: 20px;
    }

    .page-66789__cta-section p {
      color: var(--text-color);
      font-size: 1.2em;
      max-width: 800px;
      margin: 0 auto 30px;
    }

    @media (max-width: 768px) {
      .page-66789__container {
        padding: 15px;
      }

      .page-66789__header-brand h1 {
        font-size: 2em;
      }

      .page-66789__hero-content h2 {
        font-size: 2em;
      }

      .page-66789__hero-content p {
        font-size: 1em;
      }

      .page-66789__promo-link {
        padding: 12px 30px;
        font-size: 1em;
      }

      .page-66789__section-title {
        font-size: 1.8em;
        margin-bottom: 30px;
      }

      .page-66789__product-grid, .page-66789__news-grid, .page-66789__features-list, .page-66789__partners-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-66789__feature-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px;
      }

      .page-66789__features-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-66789__product-image, .page-66789__news-image {
        height: 180px;
      }

      .page-66789__cta-section h2 {
        font-size: 2em;
      }

      .page-66789__cta-section p {
        font-size: 1em;
      }

      .page-66789__floating-buttons {
        flex-direction: row;
        width: calc(100% - 40px);
        left: 20px;
        bottom: 15px;
        justify-content: space-around;
      }

      .page-66789__floating-button {
        flex: 1;
        padding: 10px 15px;
        font-size: 1em;
      }

      .page-66789__partner-logo {
        max-width: 150px;
      }

      .page-66789__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
      }

      .page-66789__faq-answer {
        padding: 0 20px;
      }

      .page-66789__faq-item.active .page-66789__faq-answer {
        padding: 15px 20px !important;
      }

      /* Image responsiveness */
      .page-66789 img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-66789__product-image, .page-66789__news-image, .page-66789__hero-image, .page-66789__partner-logo {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
      }
    }

    @media (max-width: 480px) {
      .page-66789__floating-buttons {
        bottom: 10px;
        left: 10px;
        right: 10px;
        width: auto;
      }
      .page-66789__floating-button {
        padding: 8px 10px;
        font-size: 0.9em;
      }
    }