:root {
      --page-kl-99-primary-color: #e44d26; /* Cam đỏ */
      --page-kl-99-secondary-color: #f7b731; /* Vàng cam */
      --page-kl-99-dark-bg: #1a1a1a;
      --page-kl-99-light-bg: #2a2a2a;
      --page-kl-99-text-color: #f0f0f0;
      --page-kl-99-border-color: #444;
      --page-kl-99-button-hover-bg: #c23b1c;
      --page-kl-99-button-text-color: #ffffff;
      --page-kl-99-faq-question-bg: #333;
      --page-kl-99-faq-answer-bg: #222;
      --page-kl-99-faq-border: #444;
    }

    .page-kl-99 {
      font-family: 'Arial', sans-serif;
      color: var(--page-kl-99-text-color);
      background-color: var(--page-kl-99-dark-bg);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-kl-99__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: var(--page-kl-99-light-bg);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      box-sizing: border-box;
    }

    .page-kl-99__hero-section {
      background-color: var(--page-kl-99-dark-bg);
      padding: 10px 0 40px 0; /* Adjusted for body padding-top */
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .page-kl-99__hero-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      margin-bottom: 20px;
    }

    .page-kl-99__hero-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
      border-radius: 8px;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-kl-99__hero-content {
      position: relative;
      z-index: 2;
      padding: 0 20px;
    }

    .page-kl-99__hero-title {
      color: var(--page-kl-99-primary-color);
      font-size: 2.8em;
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-kl-99__hero-subtitle {
      color: var(--page-kl-99-secondary-color);
      font-size: 1.4em;
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-kl-99__button-group {
      display: flex;
      justify-content: center;
      gap: 15px;
      flex-wrap: wrap;
    }

    .page-kl-99__button,
    .page-kl-99__floating-button {
      display: inline-block;
      padding: 12px 25px;
      background-color: var(--page-kl-99-primary-color);
      color: var(--page-kl-99-button-text-color);
      border: none;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: bold;
      cursor: pointer;
      text-decoration: none;
      transition: background-color 0.3s ease, transform 0.2s ease;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
      white-space: nowrap;
    }

    .page-kl-99__button:hover,
    .page-kl-99__floating-button:hover {
      background-color: var(--page-kl-99-button-hover-bg);
      transform: translateY(-2px);
    }

    .page-kl-99__heading {
      color: var(--page-kl-99-secondary-color);
      text-align: center;
      margin-bottom: 30px;
      font-size: 2em;
      border-bottom: 2px solid var(--page-kl-99-primary-color);
      padding-bottom: 10px;
      display: inline-block;
      width: auto;
      max-width: 90%;
      margin-left: auto;
      margin-right: auto;
    }

    .page-kl-99__text {
      font-size: 1em;
      color: var(--page-kl-99-text-color);
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-kl-99__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-kl-99__card {
      background-color: var(--page-kl-99-dark-bg);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
      text-align: center;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
      border: 1px solid var(--page-kl-99-border-color);
    }

    .page-kl-99__card:hover {
      transform: translateY(-5px);
    }

    .page-kl-99__card-image-container {
      width: 100%;
      height: 200px;
      overflow: hidden;
      box-sizing: border-box;
    }

    .page-kl-99__card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      max-width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-kl-99__card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-kl-99__card-title {
      color: var(--page-kl-99-primary-color);
      font-size: 1.3em;
      margin-bottom: 10px;
    }

    .page-kl-99__card-description {
      font-size: 0.95em;
      color: var(--page-kl-99-text-color);
      margin-bottom: 15px;
      flex-grow: 1;
      text-align: left;
    }

    .page-kl-99__list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 15px;
    }

    .page-kl-99__list-item {
      background-color: var(--page-kl-99-dark-bg);
      padding: 15px;
      border-radius: 6px;
      border-left: 4px solid var(--page-kl-99-primary-color);
      font-size: 1em;
      color: var(--page-kl-99-text-color);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
      box-sizing: border-box;
      word-wrap: break-word; /* Ensure text wraps */
      overflow-wrap: break-word; /* Ensure text wraps */
    }

    .page-kl-99__floating-buttons-container {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: rgba(26, 26, 26, 0.95);
      box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.4);
      z-index: 1000;
      border-top-left-radius: 10px;
      border-top-right-radius: 10px;
      box-sizing: border-box;
    }

    .page-kl-99__faq-section {
      padding: 40px 20px;
      background-color: var(--page-kl-99-light-bg);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .page-kl-99__faq-item {
      margin-bottom: 15px;
      border: 1px solid var(--page-kl-99-faq-border);
      border-radius: 8px;
      overflow: hidden;
      background-color: var(--page-kl-99-faq-question-bg);
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-kl-99__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      user-select: none;
      background-color: var(--page-kl-99-faq-question-bg);
      color: var(--page-kl-99-text-color);
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease;
    }

    .page-kl-99__faq-question h3 {
      margin: 0;
      color: var(--page-kl-99-secondary-color);
      font-size: 1.1em;
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-kl-99__faq-question:hover {
      background-color: #444;
    }

    .page-kl-99__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      color: var(--page-kl-99-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-kl-99__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      background-color: var(--page-kl-99-faq-answer-bg);
      color: var(--page-kl-99-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;
      font-size: 0.95em;
    }

    .page-kl-99__faq-item.active .page-kl-99__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to show all content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    .page-kl-99__faq-item.active .page-kl-99__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' visually */
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-kl-99__section {
        padding: 30px 15px;
      }

      .page-kl-99__hero-title {
        font-size: 2.2em;
      }

      .page-kl-99__hero-subtitle {
        font-size: 1.2em;
      }

      .page-kl-99__button {
        padding: 10px 20px;
        font-size: 1em;
      }

      .page-kl-99__heading {
        font-size: 1.8em;
        margin-bottom: 20px;
      }

      .page-kl-99__grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .page-kl-99__card-image-container {
        height: 180px;
      }

      .page-kl-99__card-title {
        font-size: 1.2em;
      }

      .page-kl-99__card-description {
        font-size: 0.9em;
      }

      .page-kl-99__list {
        grid-template-columns: 1fr;
        gap: 10px;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-kl-99__list-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 12px;
      }

      .page-kl-99__floating-buttons-container {
        padding: 8px 0;
      }

      .page-kl-99__floating-button {
        padding: 10px 20px;
        font-size: 0.95em;
      }

      .page-kl-99__faq-question {
        padding: 12px 15px;
        font-size: 1em;
      }

      .page-kl-99__faq-question h3 {
        font-size: 1em;
      }

      .page-kl-99__faq-answer {
        padding: 15px 15px !important;
        font-size: 0.9em;
      }

      .page-kl-99__hero-image {
        max-height: 300px;
      }
    }

    @media (max-width: 480px) {
      .page-kl-99__hero-title {
        font-size: 1.8em;
      }

      .page-kl-99__hero-subtitle {
        font-size: 1em;
      }

      .page-kl-99__button {
        padding: 8px 18px;
        font-size: 0.9em;
      }
    }