:root {
      --page-09vi-primary-color: #f7b731; /* Vàng cam */
      --page-09vi-secondary-color: #1a2a3a; /* Xám xanh đậm */
      --page-09vi-text-light: #ffffff;
      --page-09vi-text-dark: #cccccc;
      --page-09vi-bg-dark: #0d1a2a;
      --page-09vi-accent-dark: #2c3e50;
    }

    .page-09vi {
      font-family: 'Arial', sans-serif;
      color: var(--page-09vi-text-light);
      background-color: var(--page-09vi-bg-dark);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }
    
    .page-09vi__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-09vi__hero-section {
      background-color: var(--page-09vi-secondary-color);
      padding: 10px 0 40px 0; /* Adjusted padding-top to avoid double offset */
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .page-09vi__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 0;
    }

    .page-09vi__hero-content {
      position: relative;
      z-index: 1;
      padding: 20px 0;
    }

    .page-09vi__main-title {
      font-size: 2.8em;
      color: var(--page-09vi-primary-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      font-weight: bold;
    }

    .page-09vi__hero-subtitle {
      font-size: 1.3em;
      color: var(--page-09vi-text-light);
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-09vi__cta-button {
      display: inline-block;
      background-color: var(--page-09vi-primary-color);
      color: var(--page-09vi-secondary-color);
      padding: 15px 30px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-09vi__cta-button:hover {
      background-color: #ffc107;
      transform: translateY(-3px);
    }

    .page-09vi__section {
      padding: 60px 0;
      text-align: center;
    }

    .page-09vi__section-title {
      font-size: 2.2em;
      color: var(--page-09vi-primary-color);
      margin-bottom: 40px;
      text-align: center;
      position: relative;
    }

    .page-09vi__section-title::after {
      content: '';
      display: block;
      width: 80px;
      height: 4px;
      background-color: var(--page-09vi-primary-color);
      margin: 10px auto 0;
      border-radius: 2px;
    }

    .page-09vi__text-block {
      max-width: 900px;
      margin: 0 auto 40px auto;
      color: var(--page-09vi-text-dark);
      font-size: 1.1em;
    }

    .page-09vi__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-09vi__feature-card {
      background-color: var(--page-09vi-accent-dark);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .page-09vi__feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-09vi__feature-icon {
      width: 100%;
      max-width: 300px;
      height: auto;
      margin-bottom: 20px;
      border-radius: 8px;
      object-fit: cover;
    }

    .page-09vi__feature-title {
      font-size: 1.5em;
      color: var(--page-09vi-primary-color);
      margin-bottom: 15px;
    }

    .page-09vi__feature-description {
      color: var(--page-09vi-text-dark);
      font-size: 0.95em;
    }

    .page-09vi__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-09vi__product-card {
      background-color: var(--page-09vi-accent-dark);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-09vi__product-card:hover {
      transform: translateY(-5px);
    }

    .page-09vi__product-image {
      width: 100%;
      height: 200px; /* Fixed height for product images */
      object-fit: cover;
      display: block;
    }

    .page-09vi__product-info {
      padding: 20px;
    }

    .page-09vi__product-title {
      font-size: 1.3em;
      color: var(--page-09vi-primary-color);
      margin-bottom: 10px;
    }

    .page-09vi__product-description {
      color: var(--page-09vi-text-dark);
      font-size: 0.9em;
      margin-bottom: 15px;
    }

    .page-09vi__promotion-list {
      list-style: none;
      padding: 0;
      margin: 40px auto 0 auto;
      max-width: 800px;
    }

    .page-09vi__promotion-item {
      background-color: var(--page-09vi-accent-dark);
      margin-bottom: 20px;
      padding: 25px;
      border-radius: 10px;
      text-align: left;
      display: flex;
      align-items: flex-start;
      gap: 20px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    }

    .page-09vi__promotion-image {
      flex-shrink: 0;
      width: 150px;
      height: 100px;
      object-fit: cover;
      border-radius: 5px;
    }

    .page-09vi__promotion-content {
      flex-grow: 1;
    }

    .page-09vi__promotion-title {
      font-size: 1.4em;
      color: var(--page-09vi-primary-color);
      margin-bottom: 10px;
    }

    .page-09vi__promotion-description {
      color: var(--page-09vi-text-dark);
      font-size: 1em;
    }

    .page-09vi__faq-section {
      background-color: var(--page-09vi-secondary-color);
    }

    .page-09vi__faq-list {
      list-style: none;
      padding: 0;
      margin: 40px auto 0 auto;
      max-width: 800px;
    }

    .page-09vi__faq-item {
      background-color: var(--page-09vi-accent-dark);
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    .page-09vi__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      background-color: var(--page-09vi-accent-dark);
      color: var(--page-09vi-text-light);
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-09vi__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-09vi-text-light);
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-09vi__faq-question:hover {
      background-color: #3b506b;
    }

    .page-09vi__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event */
    }

    .page-09vi__faq-item.active .page-09vi__faq-toggle {
      transform: rotate(45deg);
    }

    .page-09vi__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      color: var(--page-09vi-text-dark);
      font-size: 1em;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      text-align: left;
    }

    .page-09vi__faq-item.active .page-09vi__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-09vi__floating-buttons {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 15px;
      z-index: 1000;
    }

    .page-09vi__floating-button {
      background-color: var(--page-09vi-primary-color);
      color: var(--page-09vi-secondary-color);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.3s ease;
      white-space: nowrap;
    }

    .page-09vi__floating-button:hover {
      background-color: #ffc107;
      transform: translateY(-3px);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-09vi__main-title {
        font-size: 2em;
      }

      .page-09vi__hero-subtitle {
        font-size: 1em;
      }

      .page-09vi__section {
        padding: 40px 0;
      }

      .page-09vi__section-title {
        font-size: 1.8em;
      }

      .page-09vi__text-block {
        font-size: 0.95em;
      }

      .page-09vi__features-grid,
      .page-09vi__product-grid {
        grid-template-columns: 1fr;
      }

      .page-09vi__promotion-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
      }

      .page-09vi__promotion-image {
        width: 100%;
        height: 150px;
        margin-bottom: 15px;
      }

      .page-09vi__faq-question {
        padding: 15px 20px;
        font-size: 1em;
      }

      .page-09vi__faq-question h3 {
        font-size: 1em;
      }

      .page-09vi__faq-answer {
        padding: 15px 20px !important;
        font-size: 0.95em;
      }

      .page-09vi__floating-buttons {
        gap: 10px;
        bottom: 15px;
      }

      .page-09vi__floating-button {
        padding: 10px 20px;
        font-size: 0.9em;
      }
      
      /* List item responsive requirements for all list-like structures */
      .page-09vi__features-grid > * {
        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;
        word-break: break-word !important;
      }

      .page-09vi__product-grid > * {
        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;
        word-break: break-word !important;
      }

      .page-09vi__promotion-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 15px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-09vi__promotion-item {
        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;
        word-break: break-word !important;
      }

      .page-09vi__faq-list {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 15px !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-09vi__faq-item {
        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;
        word-break: break-word !important;
      }

      /* Image responsive optimization */
      .page-09vi img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-09vi__product-image, .page-09vi__promotion-image, .page-09vi__feature-icon {
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important; /* Override fixed height for responsiveness */
        box-sizing: border-box !important;
      }
    }