/* Tổng quan */
    .page-99kl-oine {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #333;
      line-height: 1.6;
      background-color: #f5f5f5;
      padding-bottom: 80px; /* Dành chỗ cho nút nổi */
    }

    .page-99kl-oine__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    /* Tiêu đề chính */
    .page-99kl-oine__hero-section {
      text-align: center;
      padding: 10px 0 40px; /* 10px top padding as per instruction, assuming body padding is handled */
      background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .page-99kl-oine__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      z-index: 1;
    }

    .page-99kl-oine__hero-content {
      position: relative;
      z-index: 2;
      padding: 20px 15px;
    }

    .page-99kl-oine__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      font-weight: 700;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
      color: #ffd700; /* Vàng kim loại */
    }

    .page-99kl-oine__hero-subtitle {
      font-size: 1.3em;
      margin-bottom: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      color: #eee;
    }

    .page-99kl-oine__promotion-button {
      display: inline-block;
      background-color: #ff4500; /* Cam cháy */
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.1em;
      font-weight: 600;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-99kl-oine__promotion-button:hover {
      background-color: #e63900;
      transform: translateY(-3px);
    }

    .page-99kl-oine__hero-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      display: block;
      margin-top: 30px;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
      object-fit: cover;
    }

    /* Nút nổi Đăng ký/Đăng nhập */
    .page-99kl-oine__floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: center;
      padding: 10px 15px;
      background-color: rgba(0, 0, 0, 0.8);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      gap: 15px;
      box-sizing: border-box;
    }

    .page-99kl-oine__floating-button {
      flex: 1;
      max-width: 180px;
      padding: 12px 20px;
      border: none;
      border-radius: 30px;
      font-size: 1.1em;
      font-weight: 700;
      cursor: pointer;
      transition: background-color 0.3s ease, transform 0.3s ease;
      text-align: center;
      color: #fff;
      text-decoration: none; /* Ensure no underline for button-like divs */
    }

    .page-99kl-oine__floating-button--register {
      background-color: #4CAF50; /* Xanh lá cây */
    }

    .page-99kl-oine__floating-button--register:hover {
      background-color: #45a049;
      transform: translateY(-2px);
    }

    .page-99kl-oine__floating-button--login {
      background-color: #007bff; /* Xanh dương */
    }

    .page-99kl-oine__floating-button--login:hover {
      background-color: #0056b3;
      transform: translateY(-2px);
    }

    /* Các phần chung */
    .page-99kl-oine__section {
      padding: 60px 0;
      text-align: center;
      background-color: #fff;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-99kl-oine__section--alt {
      background-color: #fcfcfc;
    }

    .page-99kl-oine__section-title {
      font-size: 2.2em;
      color: #1a2a6c;
      margin-bottom: 40px;
      font-weight: 700;
      position: relative;
    }

    .page-99kl-oine__section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: #fdbb2d;
      margin: 15px auto 0;
      border-radius: 2px;
    }

    .page-99kl-oine__text-block {
      max-width: 800px;
      margin: 0 auto 30px;
      font-size: 1.1em;
      color: #555;
    }

    /* Lưới sản phẩm/dịch vụ */
    .page-99kl-oine__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-99kl-oine__grid-item {
      background-color: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-sizing: border-box;
    }

    .page-99kl-oine__grid-item:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }

    .page-99kl-oine__grid-item-image-wrapper {
      width: 100%;
      height: 200px; /* Fixed height for consistency */
      overflow: hidden;
    }

    .page-99kl-oine__grid-item-image {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .page-99kl-oine__grid-item:hover .page-99kl-oine__grid-item-image {
      transform: scale(1.05);
    }

    .page-99kl-oine__grid-item-content {
      padding: 25px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .page-99kl-oine__grid-item-title {
      font-size: 1.5em;
      color: #1a2a6c;
      margin-bottom: 10px;
      font-weight: 600;
    }

    .page-99kl-oine__grid-item-description {
      font-size: 1em;
      color: #666;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .page-99kl-oine__grid-item-button {
      display: inline-block;
      background-color: #fdbb2d;
      color: #1a2a6c;
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-size: 0.95em;
      font-weight: 600;
      transition: background-color 0.3s ease;
      text-align: center;
    }

    .page-99kl-oine__grid-item-button:hover {
      background-color: #e0a800;
    }

    /* Danh sách thanh toán/nhà cung cấp */
    .page-99kl-oine__list {
      list-style: none;
      padding: 0;
      margin: 0 auto;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      max-width: 900px;
    }

    .page-99kl-oine__list-item {
      background-color: #e0e0e0;
      color: #333;
      padding: 10px 20px;
      border-radius: 25px;
      font-size: 1.0em;
      font-weight: 500;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
      word-wrap: break-word !important; /* Ensure text wraps */
      box-sizing: border-box; /* Crucial for responsive lists */
    }

    .page-99kl-oine__list-item:hover {
      background-color: #d0d0d0;
      transform: translateY(-2px);
    }

    /* FAQ Section */
    .page-99kl-oine__faq-section {
      padding: 60px 0;
      background-color: #f9f9f9;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-99kl-oine__faq-title {
      font-size: 2.2em;
      color: #1a2a6c;
      margin-bottom: 40px;
      font-weight: 700;
      position: relative;
      text-align: center;
    }

    .page-99kl-oine__faq-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background-color: #fdbb2d;
      margin: 15px auto 0;
      border-radius: 2px;
    }

    .page-99kl-oine__faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .page-99kl-oine__faq-item {
      background-color: #fff;
      border: 1px solid #ddd;
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    }

    .page-99kl-oine__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #eef;
      color: #1a2a6c;
      font-size: 1.2em;
      font-weight: 600;
      user-select: none;
      transition: background-color 0.3s ease;
    }

    .page-99kl-oine__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      pointer-events: none; /* Prevent h3 from blocking click */
      color: #1a2a6c;
    }

    .page-99kl-oine__faq-question:hover {
      background-color: #e0e0ff;
    }

    .page-99kl-oine__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: #fdbb2d;
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-99kl-oine__faq-item.active .page-99kl-oine__faq-toggle {
      transform: rotate(45deg); /* Rotate + to become X, or change to - */
    }

    .page-99kl-oine__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      background-color: #fff;
      color: #555;
    }

    .page-99kl-oine__faq-item.active .page-99kl-oine__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }

    .page-99kl-oine__faq-answer p {
      margin: 0;
      padding-bottom: 10px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-99kl-oine__hero-title {
        font-size: 2em;
      }

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

      .page-99kl-oine__promotion-button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-99kl-oine__floating-buttons {
        flex-direction: row; /* Keep horizontal on smaller screens too, but adjust padding */
        padding: 10px;
        gap: 10px;
      }

      .page-99kl-oine__floating-button {
        padding: 10px 15px;
        font-size: 0.95em;
        max-width: unset; /* Allow buttons to take more width */
      }

      .page-99kl-oine__section {
        padding: 40px 0;
      }

      .page-99kl-oine__section-title,
      .page-99kl-oine__faq-title {
        font-size: 1.8em;
      }

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

      .page-99kl-oine__grid-item-content {
        padding: 20px;
      }

      .page-99kl-oine__grid-item-title {
        font-size: 1.3em;
      }

      .page-99kl-oine__grid-item-description {
        font-size: 0.95em;
      }

      .page-99kl-oine__list {
        flex-direction: column;
        gap: 10px;
        padding: 0 10px !important; /* Adjust padding for list container */
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        box-sizing: border-box !important;
      }

      .page-99kl-oine__list-item {
        width: 100% !important; /* Force full width for list items */
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 10px 15px !important; /* Adjust padding */
        font-size: 0.9em;
        box-sizing: border-box !important;
        text-align: center;
      }

      .page-99kl-oine__faq-question {
        padding: 15px 20px;
        font-size: 1.1em;
      }

      .page-99kl-oine__faq-question h3 {
        font-size: 1.1em;
      }

      .page-99kl-oine__faq-answer {
        padding: 15px 20px !important;
      }

      /* Image responsive adjustments */
      .page-99kl-oine__hero-image,
      .page-99kl-oine__grid-item-image {
        max-width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
      }

      .page-99kl-oine__grid-item-image-wrapper {
        width: 100% !important;
        height: auto !important; /* Allow height to adjust naturally */
        max-height: 200px !important; /* Max height to prevent overly tall images */
        box-sizing: border-box !important;
      }
    }

    @media (max-width: 480px) {
      .page-99kl-oine__hero-title {
        font-size: 1.8em;
      }
      .page-99kl-oine__section-title,
      .page-99kl-oine__faq-title {
        font-size: 1.6em;
      }
      .page-99kl-oine__floating-button {
        font-size: 0.9em;
        padding: 8px 10px;
      }
      .page-99kl-oine__faq-question {
        font-size: 1em;
        padding: 12px 15px;
      }
      .page-99kl-oine__faq-question h3 {
        font-size: 1em;
      }
      .page-99kl-oine__faq-toggle {
        font-size: 1.5em;
      }
      .page-99kl-oine__faq-answer {
        font-size: 0.9em;
        padding: 12px 15px !important;
      }
    }