:root {
      --page-mb666__primary-color: #e44d26; /* Cam đỏ */
      --page-mb666__secondary-color: #f7b731; /* Vàng cam */
      --page-mb666__dark-background: #1a1a1a; /* Nền tối */
      --page-mb666__light-text: #ffffff; /* Chữ sáng */
      --page-mb666__gray-text: #cccccc; /* Chữ xám */
      --page-mb666__accent-color: #4CAF50; /* Xanh lá */
      --page-mb666__border-color: #333333; /* Màu viền */
      --page-mb666__hover-color: #ff6f42; /* Màu hover */
    }

    .page-mb666 {
      font-family: 'Arial', sans-serif;
      color: var(--page-mb666__light-text);
      background-color: var(--page-mb666__dark-background);
      line-height: 1.6;
    }

    .page-mb666__section {
      padding: 40px 20px;
      text-align: center;
      margin-bottom: 20px;
      background-color: #222222;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-mb666__hero-section {
      padding-top: 120px; /* Dành chỗ cho header cố định */
      background-color: var(--page-mb666__dark-background);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 450px;
    }

    .page-mb666__hero-image {
      max-width: 100%;
      height: auto;
      display: block;
      margin: 0 auto 20px; /* Banner ở trên, văn bản ở dưới */
      border-radius: 8px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .page-mb666__hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      padding: 0 20px;
      text-align: center;
    }

    .page-mb666__main-heading {
      color: var(--page-mb666__primary-color);
      font-size: 2.8em;
      margin-bottom: 15px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-mb666__sub-heading {
      color: var(--page-mb666__secondary-color);
      font-size: 1.5em;
      margin-bottom: 25px;
    }

    .page-mb666__button {
      display: inline-block;
      background-color: var(--page-mb666__primary-color);
      color: var(--page-mb666__light-text);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-mb666__button:hover {
      background-color: var(--page-mb666__hover-color);
      transform: translateY(-2px);
    }

    .page-mb666__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-mb666__accent-color);
      color: var(--page-mb666__light-text);
      padding: 15px 25px;
      border-radius: 30px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
      font-size: 1.1em;
      font-weight: bold;
      z-index: 1000;
      animation: page-mb666__pulse 2s infinite;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .page-mb666__floating-button:hover {
      background-color: #5cb85c;
      animation: none;
      transform: scale(1.05);
    }

    @keyframes page-mb666__pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .page-mb666__section-title {
      color: var(--page-mb666__secondary-color);
      font-size: 2.2em;
      margin-bottom: 30px;
      text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    }

    .page-mb666__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .page-mb666__card {
      background-color: #333333;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: left;
      display: flex;
      flex-direction: column;
    }

    .page-mb666__card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-mb666__card-image-container {
      width: 100%;
      max-width: 100%;
      overflow: hidden;
      box-sizing: border-box;
      height: 200px; /* Fixed height for consistent card appearance */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .page-mb666__card-image {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover; /* Ensure image covers the area without distortion */
      width: 100%;
      height: 100%;
    }

    .page-mb666__card-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .page-mb666__card-title {
      color: var(--page-mb666__primary-color);
      font-size: 1.4em;
      margin-bottom: 10px;
      line-height: 1.3;
    }

    .page-mb666__card-title a {
      color: var(--page-mb666__primary-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-mb666__card-title a:hover {
      color: var(--page-mb666__hover-color);
    }

    .page-mb666__card-text {
      color: var(--page-mb666__gray-text);
      font-size: 0.95em;
      margin-bottom: 15px;
    }

    .page-mb666__provider-logo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      gap: 15px;
      max-width: 1000px;
      margin: 0 auto;
      padding: 20px 0;
    }

    .page-mb666__provider-logo-wrapper {
      background-color: #444444;
      border-radius: 8px;
      padding: 10px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 80px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease;
    }

    .page-mb666__provider-logo-wrapper:hover {
      transform: scale(1.05);
    }

    .page-mb666__provider-logo {
      max-width: 90%;
      max-height: 90%;
      height: auto;
      object-fit: contain;
      display: block;
    }

    .page-mb666__text-content {
      max-width: 800px;
      margin: 0 auto;
      text-align: left;
      color: var(--page-mb666__gray-text);
    }

    .page-mb666__text-content h2,
    .page-mb666__text-content h3 {
      color: var(--page-mb666__secondary-color);
      margin-top: 30px;
      margin-bottom: 15px;
      font-size: 1.8em;
    }

    .page-mb666__text-content h3 {
      font-size: 1.5em;
      color: var(--page-mb666__primary-color);
    }

    .page-mb666__text-content p {
      margin-bottom: 15px;
      line-height: 1.7;
    }

    .page-mb666__text-content ul {
      list-style-type: disc;
      padding-left: 25px;
      margin-bottom: 20px;
    }

    .page-mb666__text-content li {
      margin-bottom: 8px;
      color: var(--page-mb666__gray-text);
    }

    .page-mb666__faq-section {
      text-align: left;
      max-width: 800px;
      margin: 0 auto;
    }

    .page-mb666__faq-item {
      background-color: #333333;
      margin-bottom: 15px;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-mb666__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 18px 20px;
      background-color: #444444;
      cursor: pointer;
      user-select: none;
      color: var(--page-mb666__light-text);
      font-size: 1.15em;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-mb666__faq-question:hover {
      background-color: #555555;
    }

    .page-mb666__faq-question h3 {
      margin: 0;
      color: var(--page-mb666__light-text);
      font-size: 1.15em;
      pointer-events: none; /* Prevent h3 from blocking click event */
    }

    .page-mb666__faq-toggle {
      font-size: 1.5em;
      line-height: 1;
      transition: transform 0.3s ease;
      color: var(--page-mb666__primary-color);
      pointer-events: none; /* Prevent toggle from blocking click event */
    }

    .page-mb666__faq-item.active .page-mb666__faq-toggle {
      transform: rotate(45deg); /* Plus to X (minus visual effect) */
      color: var(--page-mb666__secondary-color);
    }

    .page-mb666__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 20px;
      background-color: #3a3a3a;
      color: var(--page-mb666__gray-text);
      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-mb666__faq-item.active .page-mb666__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to contain content */
      padding: 20px !important;
      opacity: 1;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-mb666__hero-section {
        padding-top: 100px; /* Mobile header spacing */
        min-height: 350px;
      }

      .page-mb666__main-heading {
        font-size: 2em;
      }

      .page-mb666__sub-heading {
        font-size: 1.2em;
      }

      .page-mb666__section {
        padding: 30px 15px;
      }

      .page-mb666__section-title {
        font-size: 1.8em;
      }

      .page-mb666__grid {
        grid-template-columns: 1fr;
      }

      .page-mb666__card-image-container {
        height: 180px;
      }

      .page-mb666__card-title {
        font-size: 1.2em;
      }

      .page-mb666__card-text {
        font-size: 0.9em;
      }

      .page-mb666__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }

      .page-mb666__provider-logo-grid {
        grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
      }

      .page-mb666__provider-logo-wrapper {
        height: 70px;
      }

      .page-mb666__faq-question {
        font-size: 1em;
        padding: 15px;
      }

      .page-mb666__faq-question h3 {
        font-size: 1em;
      }

      .page-mb666__faq-answer {
        padding: 0 15px;
      }

      .page-mb666__faq-item.active .page-mb666__faq-answer {
        padding: 15px !important;
      }

      /* Image responsive forcing */
      .page-mb666 img {
        max-width: 100% !important;
        height: auto !important;
      }
      .page-mb666__card-image-container,
      .page-mb666__hero-image-container,
      .page-mb666__provider-logo-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }
    }