.page-choi-co-trach-nhiem {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light backgrounds */
  background-color: var(--bg-color, #f8f8f8); /* Default light background */
}

.page-choi-co-trach-nhiem__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, assuming body handles header offset */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-choi-co-trach-nhiem__hero-image {
  width: 100%;
  height: auto;
  overflow: hidden;
  position: relative;
}

.page-choi-co-trach-nhiem__hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 16/9;
}

.page-choi-co-trach-nhiem__hero-content {
  width: 100%;
  max-width: 1200px;
  padding: 40px 20px;
  text-align: center;
  background: #ffffff; /* Light background for hero content text */
  color: #333333;
  box-sizing: border-box;
}

.page-choi-co-trach-nhiem__main-title {
  font-size: clamp(2.2em, 4vw, 3em);
  font-weight: 700;
  margin-bottom: 20px;
  color: #C91F17;
  line-height: 1.2;
}

.page-choi-co-trach-nhiem__lead-text {
  font-size: 1.15em;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #333333;
}

.page-choi-co-trach-nhiem__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  width: 100%;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.page-choi-co-trach-nhiem__btn-primary,
.page-choi-co-trach-nhiem__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
  width: auto;
}

.page-choi-co-trach-nhiem__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for text on gold button */
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-choi-co-trach-nhiem__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  transform: translateY(-2px);
}

.page-choi-co-trach-nhiem__btn-secondary {
  background: #C91F17;
  color: #ffffff;
  border: 2px solid #C91F17;
}

.page-choi-co-trach-nhiem__btn-secondary:hover {
  background: #E53935;
  transform: translateY(-2px);
}

.page-choi-co-trach-nhiem__section {
  padding: 60px 0;
}

.page-choi-co-trach-nhiem__content-area {
  background-color: #f8f8f8;
  color: #333333;
}

.page-choi-co-trach-nhiem__dark-bg {
  background-color: #B71C1C;
  color: #FFF5E1; /* Text Main for dark background */
}

.page-choi-co-trach-nhiem__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-choi-co-trach-nhiem__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #C91F17;
}

.page-choi-co-trach-nhiem__section-title--light {
  color: #FFF5E1;
}

.page-choi-co-trach-nhiem__intro-text {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px auto;
}

.page-choi-co-trach-nhiem__intro-text--light {
  color: #FFF5E1;
}

.page-choi-co-trach-nhiem__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.page-choi-co-trach-nhiem__feature-item {
  text-align: center;
}

.page-choi-co-trach-nhiem__card {
  background: #ffffff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  color: #333333;
  border: 1px solid #e0e0e0;
}

.page-choi-co-trach-nhiem__card--dark {
  background: #D32F2F; /* Card BG */
  color: #FFF5E1;
  border: 1px solid #7A0E0E; /* Deep Red border */
}

.page-choi-co-trach-nhiem__feature-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #C91F17;
}

.page-choi-co-trach-nhiem__card--dark .page-choi-co-trach-nhiem__feature-title,
.page-choi-co-trach-nhiem__card--dark .page-choi-co-trach-nhiem__sub-title {
  color: #FFF5E1; /* Text Main for titles on dark card */
}

.page-choi-co-trach-nhiem__image-text-layout {
  display: flex;
  align-items: center;
  gap: 50px;
  margin-top: 40px;
}

.page-choi-co-trach-nhiem__image-wrapper {
  flex: 1;
  min-width: 300px;
  overflow: hidden;
  border-radius: 10px;
}

.page-choi-co-trach-nhiem__image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-choi-co-trach-nhiem__image-wrapper--center {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.page-choi-co-trach-nhiem__image-wrapper--center img {
  max-width: 800px;
  width: 100%;
}

.page-choi-co-trach-nhiem__image-wrapper--small img {
  max-width: 400px;
  margin: 0 auto;
}

.page-choi-co-trach-nhiem__text-content {
  flex: 1;
  color: #FFF5E1; /* Text Main for dark background */
}

.page-choi-co-trach-nhiem__sub-title {
  font-size: 1.3em;
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
  color: #C91F17;
}

.page-choi-co-trach-nhiem__sub-title--light {
  color: #FFF5E1;
}

.page-choi-co-trach-nhiem__support-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-choi-co-trach-nhiem__support-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-choi-co-trach-nhiem__faq-section {
  padding: 60px 0;
}

details.page-choi-co-trach-nhiem__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}
details.page-choi-co-trach-nhiem__faq-item summary.page-choi-co-trach-nhiem__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-choi-co-trach-nhiem__faq-item summary.page-choi-co-trach-nhiem__faq-question::-webkit-details-marker {
  display: none;
}
details.page-choi-co-trach-nhiem__faq-item summary.page-choi-co-trach-nhiem__faq-question:hover {
  background: #f5f5f5;
}
.page-choi-co-trach-nhiem__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-choi-co-trach-nhiem__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-choi-co-trach-nhiem__faq-item .page-choi-co-trach-nhiem__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #333333;
}

.page-choi-co-trach-nhiem__conclusion-section {
  padding: 60px 0;
  text-align: center;
}

.page-choi-co-trach-nhiem__cta-buttons--center {
  margin-top: 40px;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-choi-co-trach-nhiem__hero-content {
    padding: 30px 15px;
  }
  .page-choi-co-trach-nhiem__main-title {
    font-size: clamp(2em, 4.5vw, 2.8em);
  }
  .page-choi-co-trach-nhiem__section-title {
    font-size: clamp(1.6em, 3.8vw, 2.2em);
  }
  .page-choi-co-trach-nhiem__image-text-layout {
    flex-direction: column;
    gap: 30px;
  }
  .page-choi-co-trach-nhiem__image-wrapper, .page-choi-co-trach-nhiem__text-content {
    flex: none;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .page-choi-co-trach-nhiem {
    font-size: 16px;
    line-height: 1.6;
  }

  /* HERO 主图区域 */
  .page-choi-co-trach-nhiem__hero-section {
    padding-top: 10px; /* Small top padding */
  }
  .page-choi-co-trach-nhiem__hero-image img {
    object-fit: contain !important; /* 禁止 cover 裁切两侧 */
    aspect-ratio: unset !important; /* 移除固定比例 */
    max-width: 100% !important;
    height: auto !important;
  }

  .page-choi-co-trach-nhiem__hero-content {
    padding: 20px 15px;
  }
  .page-choi-co-trach-nhiem__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
    margin-bottom: 15px;
  }
  .page-choi-co-trach-nhiem__lead-text {
    font-size: 1em;
    margin-bottom: 20px;
  }

  /* 按钮与按钮容器 */
  .page-choi-co-trach-nhiem__cta-buttons {
    flex-direction: column; /* 移动端垂直排列 */
    gap: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }
  .page-choi-co-trach-nhiem__btn-primary,
  .page-choi-co-trach-nhiem__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 15px;
    font-size: 1em;
  }

  /* 通用图片与容器 */
  .page-choi-co-trach-nhiem__section,
  .page-choi-co-trach-nhiem__card,
  .page-choi-co-trach-nhiem__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-choi-co-trach-nhiem img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }

  .page-choi-co-trach-nhiem__section-title {
    font-size: clamp(1.5em, 5vw, 2em);
    margin-bottom: 30px;
  }

  .page-choi-co-trach-nhiem__feature-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-choi-co-trach-nhiem__feature-item {
    padding: 20px;
  }

  .page-choi-co-trach-nhiem__feature-title {
    font-size: 1.3em;
  }

  .page-choi-co-trach-nhiem__image-text-layout {
    flex-direction: column;
    gap: 20px;
  }

  .page-choi-co-trach-nhiem__sub-title {
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .page-choi-co-trach-nhiem__support-options {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  details.page-choi-co-trach-nhiem__faq-item summary.page-choi-co-trach-nhiem__faq-question {
    padding: 15px;
  }
  .page-choi-co-trach-nhiem__faq-qtext {
    font-size: 15px;
  }
  details.page-choi-co-trach-nhiem__faq-item .page-choi-co-trach-nhiem__faq-answer {
    padding: 0 15px 15px;
  }

  .page-choi-co-trach-nhiem__article-body,
  .page-choi-co-trach-nhiem__article-figure {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
    text-align: left; /* Ensure text aligns correctly */
  }
  .page-choi-co-trach-nhiem__section-title-wrap {
    text-align: center;
    padding: 0 15px;
  }
}