.page-cau-hoi-thuong-gap {
  font-family: Arial, sans-serif;
  color: #1F2D3D;
  line-height: 1.6;
  background-color: #F4F7FB;
}

.page-cau-hoi-thuong-gap__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-cau-hoi-thuong-gap__top-section {
  padding-top: 10px; /* Small top padding as body handles header offset */
  padding-bottom: 40px;
  text-align: center;
  background-color: #FFFFFF;
  border-bottom: 1px solid #D6E2FF;
}

.page-cau-hoi-thuong-gap__main-title {
  font-size: 2.8em;
  font-weight: bold;
  color: #2F6BFF;
  margin-bottom: 20px;
  line-height: 1.2;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-cau-hoi-thuong-gap__intro-text {
  font-size: 1.1em;
  color: #1F2D3D;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-cau-hoi-thuong-gap__intro-text a.page-cau-hoi-thuong-gap__inline-link {
  color: #2F6BFF;
  text-decoration: underline;
}

.page-cau-hoi-thuong-gap__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-cau-hoi-thuong-gap__btn-primary,
.page-cau-hoi-thuong-gap__btn-secondary {
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-cau-hoi-thuong-gap__btn-primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.3);
}

.page-cau-hoi-thuong-gap__btn-primary:hover {
  background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.4);
}

.page-cau-hoi-thuong-gap__btn-secondary {
  background-color: #FFFFFF;
  color: #2F6BFF;
  border: 2px solid #2F6BFF;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-cau-hoi-thuong-gap__btn-secondary:hover {
  background-color: #F4F7FB;
  color: #2F6BFF;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.page-cau-hoi-thuong-gap__faq-section {
  padding: 60px 0;
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section {
  background-color: #2F6BFF;
  color: #ffffff;
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__section-title,
.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__figcaption {
  color: #ffffff;
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__faq-question {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__faq-answer {
  background-color: rgba(255, 255, 255, 0.05);
  color: #ffffff;
}

.page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__faq-answer a {
  color: #A5C4FF;
}

.page-cau-hoi-thuong-gap__section-title {
  font-size: 2.2em;
  color: #2F6BFF;
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
}

.page-cau-hoi-thuong-gap__figure {
  margin: 40px auto;
  max-width: 680px;
  text-align: center;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.page-cau-hoi-thuong-gap__figure img {
  max-width: 100%;
  height: auto;
  display: block;
  width: 100%;
}

.page-cau-hoi-thuong-gap__figcaption {
  font-size: 0.9em;
  color: #666;
  padding: 10px;
  background-color: #f9f9f9;
  border-top: 1px solid #eee;
}

.page-cau-hoi-thuong-gap__faq-item {
  margin-bottom: 15px;
  border: 1px solid #D6E2FF;
  border-radius: 8px;
  overflow: hidden;
  background-color: #FFFFFF;
}

.page-cau-hoi-thuong-gap__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.1em;
  font-weight: bold;
  color: #1F2D3D;
  cursor: pointer;
  background-color: #F4F7FB;
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-cau-hoi-thuong-gap__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker */
}

.page-cau-hoi-thuong-gap__faq-question:hover {
  background-color: #D6E2FF;
}

.page-cau-hoi-thuong-gap__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-cau-hoi-thuong-gap__faq-item[open] .page-cau-hoi-thuong-gap__faq-toggle {
  transform: rotate(45deg);
}

.page-cau-hoi-thuong-gap__faq-answer {
  padding: 20px 25px;
  font-size: 1em;
  color: #333333;
  background-color: #FFFFFF;
  border-top: 1px solid #D6E2FF;
}

.page-cau-hoi-thuong-gap__faq-answer p {
  margin-bottom: 10px;
}

.page-cau-hoi-thuong-gap__faq-answer a {
  color: #2F6BFF;
  text-decoration: underline;
}

.page-cau-hoi-thuong-gap__cta-section {
  padding: 60px 0;
  text-align: center;
  background-color: #F4F7FB;
}

.page-cau-hoi-thuong-gap__promo-box {
  background-color: #FFFFFF;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.page-cau-hoi-thuong-gap__promo-title {
  font-size: 2em;
  color: #2F6BFF;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-cau-hoi-thuong-gap__promo-text {
  font-size: 1.1em;
  color: #1F2D3D;
  margin-bottom: 30px;
}

.page-cau-hoi-thuong-gap__promo-text a {
  color: #2F6BFF;
  text-decoration: underline;
}

/* --- Mobile Responsive Styles --- */
@media (max-width: 768px) {
  .page-cau-hoi-thuong-gap {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-cau-hoi-thuong-gap__container {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 1. Top Section Title + Dual CTA */
  .page-cau-hoi-thuong-gap__top-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-cau-hoi-thuong-gap__main-title {
    font-size: 2em;
    margin-bottom: 15px;
  }

  .page-cau-hoi-thuong-gap__intro-text {
    font-size: 1em;
    margin-bottom: 25px;
  }

  .page-cau-hoi-thuong-gap__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
    box-sizing: border-box;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
  }

  .page-cau-hoi-thuong-gap__btn-primary,
  .page-cau-hoi-thuong-gap__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. Single Column Long Text Container (General Sections) */
  .page-cau-hoi-thuong-gap__faq-section {
    padding: 40px 0;
  }

  .page-cau-hoi-thuong-gap__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  /* 3. General Images and Figure */
  .page-cau-hoi-thuong-gap__figure {
    margin: 30px auto;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }

  .page-cau-hoi-thuong-gap__figure img {
    max-width: 100% !important;
    height: auto !important;
    width: 100% !important;
  }

  .page-cau-hoi-thuong-gap__figcaption {
    font-size: 0.85em;
  }

  /* FAQ items */
  .page-cau-hoi-thuong-gap__faq-item {
    margin-bottom: 10px;
  }

  .page-cau-hoi-thuong-gap__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-cau-hoi-thuong-gap__faq-answer {
    padding: 15px 20px;
    font-size: 0.95em;
  }

  /* 4. Buttons and Button Containers (Already covered in top section, but re-emphasize general buttons) */
  .page-cau-hoi-thuong-gap__promo-box .page-cau-hoi-thuong-gap__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0;
  }

  /* 5. Registration Tutorial and FAQ Block (Promo Box) */
  .page-cau-hoi-thuong-gap__promo-box {
    padding: 30px 20px;
  }

  .page-cau-hoi-thuong-gap__promo-title {
    font-size: 1.6em;
    margin-bottom: 15px;
  }

  .page-cau-hoi-thuong-gap__promo-text {
    font-size: 1em;
    margin-bottom: 25px;
  }

  /* Ensure all image-containing elements are responsive */
  .page-cau-hoi-thuong-gap__section,
  .page-cau-hoi-thuong-gap__card,
  .page-cau-hoi-thuong-gap__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-cau-hoi-thuong-gap__faq-section.page-cau-hoi-thuong-gap__dark-section .page-cau-hoi-thuong-gap__faq-answer a {
    color: #A5C4FF;
  }
}