:root {
      --primary-color: #e53935; /* Đỏ tươi */
      --secondary-color: #ff9800; /* Cam */
      --text-color: #f0f0f0; /* Trắng nhạt */
      --background-dark: #1a1a1a; /* Nền tối */
      --background-light: #2c2c2c; /* Nền sáng hơn */
      --border-color: #444; /* Viền xám */
      --button-hover: #ff5252; /* Đỏ đậm hơn khi hover */
    }

    .page-c54c {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: var(--text-color);
      background-color: var(--background-dark);
      line-height: 1.6;
      padding-top: var(--header-offset, 10px); /* Small padding top, relying on body padding-top for header offset */
    }

    .page-c54c__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--background-light);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }

    .page-c54c__section--dark {
      background-color: var(--background-dark);
    }

    .page-c54c__title {
      font-size: 2.5em;
      color: var(--primary-color);
      text-align: center;
      margin-bottom: 30px;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      font-weight: 700;
    }

    .page-c54c__subtitle {
      font-size: 1.8em;
      color: var(--secondary-color);
      text-align: center;
      margin-bottom: 25px;
      font-weight: 600;
    }

    .page-c54c__text {
      font-size: 1.1em;
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-c54c__hero-section {
      position: relative;
      width: 100%;
      height: 60vh;
      min-height: 300px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
      margin-bottom: 20px;
      border-radius: 8px;
    }

    .page-c54c__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 nổi bật */
    }

    .page-c54c__hero-content {
      position: relative;
      z-index: 2;
      color: var(--text-color);
      max-width: 90%;
    }

    .page-c54c__hero-title {
      font-size: 3.5em;
      margin-bottom: 15px;
      color: #fff;
      text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
    }

    .page-c54c__hero-description {
      font-size: 1.3em;
      margin-bottom: 30px;
      color: #eee;
      text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.6);
    }

    .page-c54c__button {
      background-color: var(--primary-color);
      color: #fff;
      padding: 12px 25px;
      border: none;
      border-radius: 5px;
      font-size: 1.1em;
      cursor: pointer;
      transition: background-color 0.3s ease;
      text-decoration: none;
      display: inline-block;
      text-align: center;
    }

    .page-c54c__button:hover {
      background-color: var(--button-hover);
    }

    .page-c54c__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-c54c__grid-item {
      background-color: var(--background-dark);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
    }

    .page-c54c__grid-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.6);
    }

    .page-c54c__grid-image-container {
      width: 100%;
      height: 200px;
      overflow: hidden;
    }

    .page-c54c__grid-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .page-c54c__grid-content {
      padding: 20px;
      flex-grow: 1;
    }

    .page-c54c__grid-title {
      font-size: 1.4em;
      color: var(--secondary-color);
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-c54c__list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 15px;
    }

    .page-c54c__list-item {
      background-color: var(--background-dark);
      padding: 15px 20px;
      border-left: 5px solid var(--primary-color);
      border-radius: 4px;
      font-size: 1.1em;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
      box-sizing: border-box;
      word-wrap: break-word; /* Ensure text wraps */
      overflow-wrap: break-word; /* For better compatibility */
    }

    .page-c54c__promo-card {
      background-color: var(--background-dark);
      border-radius: 8px;
      padding: 25px;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-c54c__promo-image {
      max-width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 20px;
      display: block;
      margin-left: auto;
      margin-right: auto;
    }

    .page-c54c__promo-title {
      font-size: 1.6em;
      color: var(--primary-color);
      margin-bottom: 15px;
    }

    .page-c54c__promo-description {
      font-size: 1.1em;
      margin-bottom: 20px;
    }

    .page-c54c__faq-item {
      margin-bottom: 10px;
      border: 1px solid var(--border-color);
      border-radius: 5px;
      overflow: hidden;
      background-color: var(--background-dark);
    }

    .page-c54c__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      background-color: var(--background-light);
      cursor: pointer;
      user-select: none;
      font-size: 1.2em;
      color: var(--secondary-color);
      transition: background-color 0.3s ease;
    }

    .page-c54c__faq-question:hover {
      background-color: rgba(var(--secondary-color), 0.1);
    }

    .page-c54c__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--secondary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-c54c__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--primary-color);
      pointer-events: none; /* Prevent toggle from blocking click */
      transition: transform 0.3s ease;
    }

    .page-c54c__faq-item.active .page-c54c__faq-toggle {
      transform: rotate(45deg); /* Plus to X for active state */
    }

    .page-c54c__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(--text-color);
    }

    .page-c54c__faq-item.active .page-c54c__faq-answer {
      max-height: 2000px !important; /* Sufficiently large value */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-c54c__floating-buttons {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .page-c54c__floating-button {
      background-color: var(--primary-color);
      color: #fff;
      padding: 10px 20px;
      border: none;
      border-radius: 50px;
      font-size: 1.1em;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.3s ease;
      text-align: center;
      min-width: 120px;
    }

    .page-c54c__floating-button:hover {
      background-color: var(--button-hover);
      transform: translateY(-3px);
    }

    .page-c54c__call-to-action {
      text-align: center;
      padding: 30px 20px;
      background-color: var(--background-dark);
      border-radius: 8px;
      margin-top: 40px;
    }

    .page-c54c__call-to-action-title {
      font-size: 2em;
      color: var(--primary-color);
      margin-bottom: 20px;
    }

    .page-c54c__call-to-action-text {
      font-size: 1.1em;
      margin-bottom: 30px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-c54c__title {
        font-size: 2em;
      }

      .page-c54c__subtitle {
        font-size: 1.5em;
      }

      .page-c54c__hero-title {
        font-size: 2.5em;
      }

      .page-c54c__hero-description {
        font-size: 1.1em;
      }

      .page-c54c__button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-c54c__section {
        padding: 30px 15px;
      }

      .page-c54c__grid {
        grid-template-columns: 1fr;
      }

      .page-c54c__list {
        grid-template-columns: 1fr;
        padding: 0;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
      }

      .page-c54c__list-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 12px 15px;
        font-size: 1em;
      }

      .page-c54c__grid-image,
      .page-c54c__promo-image,
      .page-c54c__hero-image {
        max-width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
      }

      .page-c54c__grid-image-container {
        width: 100% !important;
        height: 180px; /* Adjust height for mobile */
      }

      .page-c54c__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }

      .page-c54c__faq-question h3 {
        font-size: 1em;
      }

      .page-c54c__faq-answer {
        padding: 15px 15px !important;
      }

      .page-c54c__floating-buttons {
        bottom: 15px;
        right: 15px;
        flex-direction: row;
        gap: 8px;
      }

      .page-c54c__floating-button {
        padding: 8px 15px;
        font-size: 0.95em;
        min-width: unset;
        flex: 1;
      }
    }