:root {
      --primary-color: #e44d26; /* Màu cam đỏ */
      --secondary-color: #f0ad4e; /* Màu vàng cam */
      --dark-bg: #1a1a2e; /* Nền tối */
      --light-text: #ffffff; /* Chữ sáng */
      --dark-text: #333333; /* Chữ tối */
      --gray-bg: #f5f5f5; /* Nền xám nhạt */
      --border-color: #e0e0e0; /* Màu viền */
      --shadow-color: rgba(0, 0, 0, 0.1);
    }

    .page-11-uu {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--dark-text);
      background-color: var(--gray-bg);
      padding-bottom: 80px; /* Space for fixed buttons */
      max-width: 100%;
      overflow-x: hidden;
    }

    .page-11-uu__header-brand {
      text-align: center;
      padding: 15px 0;
      background-color: var(--dark-bg);
      color: var(--light-text);
      font-size: 2.2em;
      font-weight: bold;
      margin-bottom: 0;
      box-shadow: 0 2px 5px var(--shadow-color);
      letter-spacing: 1px;
    }

    .page-11-uu__hero-section {
      position: relative;
      width: 100%;
      height: 60vh;
      min-height: 300px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--light-text);
      overflow: hidden;
      padding-top: 10px; /* Small decorative padding, assuming body has offset */
    }

    .page-11-uu__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: -1;
      filter: brightness(0.6); /* Làm tối ảnh nền để chữ dễ đọc */
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-11-uu__hero-content {
      position: relative;
      z-index: 1;
      padding: 0 20px;
      max-width: 800px;
    }

    .page-11-uu__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--light-text);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-11-uu__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-11-uu__cta-button {
      display: inline-block;
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 12px 25px;
      border-radius: 5px;
      font-size: 1.1em;
      font-weight: bold;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-11-uu__cta-button:hover {
      background-color: #d14220;
      transform: translateY(-2px);
    }

    .page-11-uu__section {
      padding: 40px 20px;
      margin: 0 auto;
      max-width: 1200px;
      background-color: var(--light-text);
      border-radius: 8px;
      box-shadow: 0 4px 10px var(--shadow-color);
      margin-top: 20px;
      box-sizing: border-box;
    }
    
    .page-11-uu__section--dark {
        background-color: var(--dark-bg);
        color: var(--light-text);
    }

    .page-11-uu__section-title {
      font-size: 2.2em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
      padding-bottom: 10px;
    }

    .page-11-uu__section-title--light {
        color: var(--secondary-color);
    }

    .page-11-uu__section-title::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background-color: var(--primary-color);
      border-radius: 2px;
    }
    .page-11-uu__section-title--light::after {
        background-color: var(--secondary-color);
    }

    .page-11-uu__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      justify-content: center;
    }

    .page-11-uu__product-card {
      background-color: #ffffff;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px var(--shadow-color);
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-sizing: border-box;
    }

    .page-11-uu__product-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    }

    .page-11-uu__product-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-11-uu__product-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-11-uu__product-title {
      font-size: 1.5em;
      color: var(--primary-color);
      margin-bottom: 10px;
    }

    .page-11-uu__product-description {
      font-size: 0.95em;
      color: var(--dark-text);
      margin-bottom: 15px;
      flex-grow: 1;
    }

    .page-11-uu__promotion-card {
        background-color: #ffffff;
        border-radius: 8px;
        box-shadow: 0 4px 10px var(--shadow-color);
        padding: 30px;
        text-align: center;
        margin-bottom: 20px;
        box-sizing: border-box;
    }

    .page-11-uu__promotion-title {
        font-size: 1.8em;
        color: var(--primary-color);
        margin-bottom: 15px;
    }

    .page-11-uu__promotion-text {
        font-size: 1.1em;
        margin-bottom: 25px;
        color: var(--dark-text);
    }

    .page-11-uu__promotion-link {
        display: inline-block;
        background-color: var(--secondary-color);
        color: var(--light-text);
        padding: 12px 25px;
        border-radius: 5px;
        font-size: 1.1em;
        font-weight: bold;
        text-decoration: none;
        transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .page-11-uu__promotion-link:hover {
        background-color: #e69d00;
        transform: translateY(-2px);
    }

    .page-11-uu__about-content {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
      align-items: center;
      justify-content: center;
    }

    .page-11-uu__about-text {
      flex: 1;
      min-width: 300px;
      max-width: 600px;
    }

    .page-11-uu__about-image {
      flex: 1;
      min-width: 300px;
      max-width: 500px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px var(--shadow-color);
      max-width: 100%;
      height: auto;
      box-sizing: border-box;
    }

    .page-11-uu__about-image img {
        width: 100%;
        height: auto;
        display: block;
        max-width: 100%;
        box-sizing: border-box;
    }

    .page-11-uu__about-text h3 {
        font-size: 1.8em;
        color: var(--primary-color);
        margin-bottom: 15px;
    }

    .page-11-uu__about-text p {
        margin-bottom: 15px;
        color: var(--dark-text);
    }

    .page-11-uu__faq-container {
      margin-top: 30px;
    }

    .page-11-uu__faq-item {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      box-sizing: border-box;
    }

    .page-11-uu__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: #f9f9f9;
      cursor: pointer;
      user-select: none;
      font-size: 1.1em;
      font-weight: bold;
      color: var(--dark-text);
      transition: background-color 0.3s ease;
    }

    .page-11-uu__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-11-uu__faq-question h3 {
        margin: 0;
        font-size: 1.1em;
        color: var(--dark-text);
        pointer-events: none; /* Prevent h3 from blocking click event on parent */
    }

    .page-11-uu__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click event on parent */
    }

    .page-11-uu__faq-item.active .page-11-uu__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or similar */
    }

    .page-11-uu__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: var(--dark-text);
    }

    .page-11-uu__faq-item.active .page-11-uu__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-11-uu__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 1000;
    }

    .page-11-uu__floating-button {
      background-color: var(--primary-color);
      color: var(--light-text);
      padding: 10px 20px;
      border-radius: 50px;
      font-size: 1em;
      font-weight: bold;
      text-decoration: none;
      text-align: center;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      min-width: 100px;
    }

    .page-11-uu__floating-button--login {
      background-color: var(--secondary-color);
    }

    .page-11-uu__floating-button:hover {
      transform: translateY(-3px);
    }

    .page-11-uu__floating-button--login:hover {
      background-color: #e69d00;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-11-uu__header-brand {
        font-size: 1.8em;
      }

      .page-11-uu__hero-title {
        font-size: 2em;
      }

      .page-11-uu__hero-description {
        font-size: 1em;
      }

      .page-11-uu__section {
        padding: 30px 15px;
        margin-top: 15px;
      }

      .page-11-uu__section-title {
        font-size: 1.8em;
        margin-bottom: 25px;
      }

      .page-11-uu__product-grid {
        grid-template-columns: 1fr;
      }

      .page-11-uu__product-card {
        margin-bottom: 15px;
      }

      .page-11-uu__about-content {
        flex-direction: column;
      }
      
      .page-11-uu__about-text,
      .page-11-uu__about-image {
        min-width: unset;
        width: 100%;
      }

      .page-11-uu__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-11-uu__faq-question h3 {
        font-size: 1em;
      }

      .page-11-uu__faq-answer {
        padding: 15px 15px !important; /* Adjusted for mobile */
      }

      .page-11-uu__floating-buttons {
        flex-direction: row;
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        justify-content: space-around;
      }

      .page-11-uu__floating-button {
        flex: 1;
        padding: 10px 15px;
        font-size: 0.9em;
        min-width: unset;
      }

      /* List item responsive requirements for product cards */
      .page-11-uu__product-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }
      .page-11-uu__product-description {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
      }
      .page-11-uu__product-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 requirements */
      .page-11-uu__hero-image,
      .page-11-uu__product-image,
      .page-11-uu__about-image img {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }
      .page-11-uu__about-image {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }