:root {
      --page-primary-color: #007bff;
      --page-secondary-color: #6c757d;
      --page-text-color: #333;
      --page-background-color: #f8f9fa;
      --page-card-background: #ffffff;
      --page-border-color: #e9ecef;
      --page-hover-color: #0056b3;
    }

    .page-resources-is-3win-popular-in-vietnam {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-text-color);
      background-color: var(--page-background-color);
      padding: 20px 0;
    }

    .page-resources-is-3win-popular-in-vietnam__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    .page-resources-is-3win-popular-in-vietnam__hero-section {
      background-color: #1a1a2e; /* Dark background for contrast */
      color: #fff;
      padding: 10px 0 60px 0; /* Adjusted padding-top for fixed header */
      text-align: center;
      margin-bottom: 40px;
      position: relative;
      overflow: hidden;
      border-radius: 8px;
    }

    .page-resources-is-3win-popular-in-vietnam__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 1;
    }

    .page-resources-is-3win-popular-in-vietnam__hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      margin: 0 auto;
      padding: 40px 20px;
    }

    .page-resources-is-3win-popular-in-vietnam__hero-title {
      font-size: 2.8em;
      margin-bottom: 20px;
      color: #fff;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-resources-is-3win-popular-in-vietnam__hero-description {
      font-size: 1.2em;
      line-height: 1.8;
      color: #e0e0e0;
      margin-bottom: 30px;
    }

    .page-resources-is-3win-popular-in-vietnam__section {
      background-color: var(--page-card-background);
      padding: 40px;
      margin-bottom: 30px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .page-resources-is-3win-popular-in-vietnam__section-title {
      color: var(--page-primary-color);
      font-size: 2em;
      margin-bottom: 25px;
      border-bottom: 3px solid var(--page-primary-color);
      padding-bottom: 10px;
      display: inline-block;
    }

    .page-resources-is-3win-popular-in-vietnam__content-image {
      width: 100%;
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      margin: 25px 0;
      display: block;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      overflow: hidden; /* For responsive image container */
      box-sizing: border-box; /* For responsive image container */
    }

    .page-resources-is-3win-popular-in-vietnam__list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
    }

    .page-resources-is-3win-popular-in-vietnam__list-item {
      background-color: #f1f7fe;
      border-left: 5px solid var(--page-primary-color);
      padding: 15px 20px;
      margin-bottom: 10px;
      border-radius: 4px;
      font-size: 1.1em;
      color: #2c3e50;
    }

    .page-resources-is-3win-popular-in-vietnam__list-item strong {
      color: var(--page-primary-color);
    }

    .page-resources-is-3win-popular-in-vietnam__call-to-action {
      text-align: center;
      margin-top: 40px;
      padding: 30px;
      background-color: #e6f2ff;
      border-radius: 8px;
      border: 1px dashed var(--page-primary-color);
    }

    .page-resources-is-3win-popular-in-vietnam__cta-text {
      font-size: 1.4em;
      margin-bottom: 20px;
      color: #004085;
    }

    .page-resources-is-3win-popular-in-vietnam__cta-button {
      display: inline-block;
      background-color: var(--page-primary-color);
      color: #fff;
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
      font-size: 1.1em;
    }

    .page-resources-is-3win-popular-in-vietnam__cta-button:hover {
      background-color: var(--page-hover-color);
      transform: translateY(-2px);
    }

    .page-resources-is-3win-popular-in-vietnam__faq-section {
      margin-top: 50px;
    }

    .page-resources-is-3win-popular-in-vietnam__faq-title {
      text-align: center;
      font-size: 2.5em;
      color: var(--page-primary-color);
      margin-bottom: 40px;
    }

    .page-resources-is-3win-popular-in-vietnam__faq-item {
      background-color: var(--page-card-background);
      border: 1px solid var(--page-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
    }

    .page-resources-is-3win-popular-in-vietnam__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 25px;
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid var(--page-border-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-resources-is-3win-popular-in-vietnam__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-resources-is-3win-popular-in-vietnam__faq-question h3 {
      margin: 0;
      font-size: 1.2em;
      color: var(--page-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-resources-is-3win-popular-in-vietnam__faq-toggle {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle icon from blocking click */
    }

    .page-resources-is-3win-popular-in-vietnam__faq-item.active .page-resources-is-3win-popular-in-vietnam__faq-toggle {
      transform: rotate(45deg); /* Plus to X for consistency */
    }

    .page-resources-is-3win-popular-in-vietnam__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 25px;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      opacity: 0;
      color: #555;
    }

    .page-resources-is-3win-popular-in-vietnam__faq-item.active .page-resources-is-3win-popular-in-vietnam__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 25px !important;
      opacity: 1;
    }
    
    .page-resources-is-3win-popular-in-vietnam__faq-answer p {
        margin-bottom: 10px;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-resources-is-3win-popular-in-vietnam__hero-section {
        padding-top: 10px; /* Mobile padding-top for fixed header */
      }

      .page-resources-is-3win-popular-in-vietnam__hero-title {
        font-size: 2em;
      }

      .page-resources-is-3win-popular-in-vietnam__hero-description {
        font-size: 1em;
      }

      .page-resources-is-3win-popular-in-vietnam__section {
        padding: 20px;
      }

      .page-resources-is-3win-popular-in-vietnam__section-title {
        font-size: 1.6em;
      }

      .page-resources-is-3win-popular-in-vietnam__list-item {
        font-size: 0.95em;
        padding: 10px 15px;
      }

      .page-resources-is-3win-popular-in-vietnam__cta-text {
        font-size: 1.2em;
      }

      .page-resources-is-3win-popular-in-vietnam__cta-button {
        padding: 12px 25px;
        font-size: 1em;
      }
      
      .page-resources-is-3win-popular-in-vietnam__faq-question {
          padding: 15px 20px;
      }

      .page-resources-is-3win-popular-in-vietnam__faq-question h3 {
          font-size: 1.1em;
      }
      
      .page-resources-is-3win-popular-in-vietnam__faq-answer {
          padding: 0 20px;
      }

      .page-resources-is-3win-popular-in-vietnam__faq-item.active .page-resources-is-3win-popular-in-vietnam__faq-answer {
          padding: 15px 20px !important;
      }

      /* Responsive image optimization */
      .page-resources-is-3win-popular-in-vietnam__content-image,
      .page-resources-is-3win-popular-in-vietnam__hero-image {
        max-width: 100% !important;
        height: auto !important;
      }
    }