:root {
  --color-primary: #11A84E;
  --color-secondary: #22C768;
  --color-button-gradient-start: #2AD16F;
  --color-button-gradient-end: #13994A;
  --color-card-bg: #11271B;
  --color-background-main: #08160F;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
}

.page-co-bac-co-trach-nhiem {
  background-color: var(--color-background-main);
  color: var(--color-text-main);
  font-family: Arial, sans-serif;
  line-height: 1.6;
  padding-bottom: 50px; /* Ensure space above footer */
}

/* Hero Section */
.page-co-bac-co-trach-nhiem__hero-section {
  position: relative;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  margin-bottom: 40px;
}

.page-co-bac-co-trach-nhiem__hero-image {
  width: 100%;
  height: 500px; /* Fixed height for desktop hero image */
  overflow: hidden;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-co-bac-co-trach-nhiem__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Cover the area, may crop sides */
  display: block;
}

.page-co-bac-co-trach-nhiem__hero-content {
  max-width: 900px;
  margin: 40px auto;
  text-align: center;
  padding: 0 20px;
}

.page-co-bac-co-trach-nhiem__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--color-gold);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-co-bac-co-trach-nhiem__hero-description {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-co-bac-co-trach-nhiem__cta-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
  max-width: 100%;
  box-sizing: border-box;
}

/* General Section Styling */
.page-co-bac-co-trach-nhiem__section {
  padding: 50px 0;
  margin-bottom: 30px;
  background-color: var(--color-background-main);
}

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

.page-co-bac-co-trach-nhiem__container--narrow {
  max-width: 900px;
}

.page-co-bac-co-trach-nhiem__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-gold);
  text-align: center;
  margin-bottom: 40px;
  font-weight: 600;
  line-height: 1.3;
}

.page-co-bac-co-trach-nhiem__section-description {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-co-bac-co-trach-nhiem__content-grid {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  margin-bottom: 40px;
}

.page-co-bac-co-trach-nhiem__content-grid--reverse {
  flex-direction: row-reverse;
}

.page-co-bac-co-trach-nhiem__text-block {
  flex: 1;
  font-size: 1.05rem;
  color: var(--color-text-main);
}

.page-co-bac-co-trach-nhiem__text-block p {
  margin-bottom: 15px;
}

.page-co-bac-co-trach-nhiem__text-block--center {
  text-align: center;
}

.page-co-bac-co-trach-nhiem__text-block a {
  color: var(--color-gold);
  text-decoration: underline;
}

.page-co-bac-co-trach-nhiem__image-container {
  flex: 1;
  min-width: 400px; /* Ensure image doesn't get too small */
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  background-color: var(--color-card-bg);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.page-co-bac-co-trach-nhiem__image-container img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
}

.page-co-bac-co-trach-nhiem__list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
  color: var(--color-text-main);
}

.page-co-bac-co-trach-nhiem__list li {
  margin-bottom: 8px;
}

/* Feature Cards Section */
.page-co-bac-co-trach-nhiem__feature-cards,
.page-co-bac-co-trach-nhiem__support-resources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-co-bac-co-trach-nhiem__card,
.page-co-bac-co-trach-nhiem__resource-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-co-bac-co-trach-nhiem__card:hover,
.page-co-bac-co-trach-nhiem__resource-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.page-co-bac-co-trach-nhiem__card img,
.page-co-bac-co-trach-nhiem__resource-card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
  object-fit: cover;
  display: block;
}

.page-co-bac-co-trach-nhiem__card-title {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-co-bac-co-trach-nhiem__card p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-bottom: 20px;
  flex-grow: 1; /* Push button to bottom */
}

/* Buttons */
.page-co-bac-co-trach-nhiem__btn-primary,
.page-co-bac-co-trach-nhiem__btn-secondary,
.page-co-bac-co-trach-nhiem a[class*="button"],
.page-co-bac-co-trach-nhiem a[class*="btn"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
  box-sizing: border-box;
  max-width: 100%; /* Ensure button doesn't overflow */
}

.page-co-bac-co-trach-nhiem__btn-primary {
  background: var(--color-button-gradient-start);
  background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
  color: var(--color-text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

.page-co-bac-co-trach-nhiem__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.6);
}

.page-co-bac-co-trach-nhiem__btn-secondary {
  background: transparent;
  color: var(--color-glow);
  border: 2px solid var(--color-glow);
}

.page-co-bac-co-trach-nhiem__btn-secondary:hover {
  background: var(--color-glow);
  color: var(--color-background-main);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.page-co-bac-co-trach-nhiem__cta-center {
  text-align: center;
  margin-top: 50px;
}

.page-co-bac-co-trach-nhiem__cta-center .page-co-bac-co-trach-nhiem__btn-primary {
  min-width: 250px;
}

/* FAQ Section */
details.page-co-bac-co-trach-nhiem__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-card-bg);
}
details.page-co-bac-co-trach-nhiem__faq-item summary.page-co-bac-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-co-bac-co-trach-nhiem__faq-item summary.page-co-bac-co-trach-nhiem__faq-question::-webkit-details-marker {
  display: none;
}
details.page-co-bac-co-trach-nhiem__faq-item summary.page-co-bac-co-trach-nhiem__faq-question:hover {
  background: var(--color-deep-green);
}
.page-co-bac-co-trach-nhiem__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--color-text-main);
}
.page-co-bac-co-trach-nhiem__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--color-glow);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-co-bac-co-trach-nhiem__faq-item .page-co-bac-co-trach-nhiem__faq-answer {
  padding: 0 20px 20px;
  background: var(--color-deep-green);
  border-radius: 0 0 5px 5px;
  color: var(--color-text-secondary);
}
.page-co-bac-co-trach-nhiem__faq-answer p {
  margin-bottom: 0;
}
.page-co-bac-co-trach-nhiem__faq-answer a {
  color: var(--color-gold);
  text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-co-bac-co-trach-nhiem__hero-image {
    height: 400px;
  }
  .page-co-bac-co-trach-nhiem__main-title {
    font-size: 3rem;
  }
  .page-co-bac-co-trach-nhiem__section-title {
    font-size: 2.5rem;
  }
  .page-co-bac-co-trach-nhiem__content-grid {
    flex-direction: column;
    align-items: center;
  }
  .page-co-bac-co-trach-nhiem__image-container {
    min-width: unset;
    width: 100%;
    max-width: 600px;
  }
  .page-co-bac-co-trach-nhiem__feature-cards,
  .page-co-bac-co-trach-nhiem__support-resources {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  .page-co-bac-co-trach-nhiem__btn-primary,
  .page-co-bac-co-trach-nhiem__btn-secondary,
  .page-co-bac-co-trach-nhiem a[class*="button"],
  .page-co-bac-co-trach-nhiem a[class*="btn"] {
    padding: 12px 24px;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-co-bac-co-trach-nhiem__hero-section {
    padding-top: 10px; /* Rely on body padding for header offset */
  }
  .page-co-bac-co-trach-nhiem__hero-image {
    height: 300px;
  }
  .page-co-bac-co-trach-nhiem__hero-image img {
    object-fit: contain !important; /* Prevent cropping on mobile */
    aspect-ratio: unset !important; /* Allow natural aspect ratio */
    width: 100% !important;
    height: auto !important;
  }
  .page-co-bac-co-trach-nhiem__hero-content {
    margin: 20px auto;
    padding: 0 15px;
  }
  .page-co-bac-co-trach-nhiem__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-co-bac-co-trach-nhiem__hero-description {
    font-size: 1rem;
    margin-bottom: 20px;
  }
  .page-co-bac-co-trach-nhiem__cta-group {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  /* 通用图片与容器 */
  .page-co-bac-co-trach-nhiem img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }
  .page-co-bac-co-trach-nhiem__section,
  .page-co-bac-co-trach-nhiem__card,
  .page-co-bac-co-trach-nhiem__container,
  .page-co-bac-co-trach-nhiem__image-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 产品展示图区域 (General content grid for this page) */
  .page-co-bac-co-trach-nhiem__content-grid {
    flex-direction: column;
    gap: 30px;
  }
  .page-co-bac-co-trach-nhiem__content-grid--reverse .page-co-bac-co-trach-nhiem__image-container {
    order: unset; /* Reset order for normal flow on reverse grid */
  }
  .page-co-bac-co-trach-nhiem__feature-cards,
  .page-co-bac-co-trach-nhiem__support-resources {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
  }
  .page-co-bac-co-trach-nhiem__card,
  .page-co-bac-co-trach-nhiem__resource-card {
    padding: 20px;
  }
  .page-co-bac-co-trach-nhiem__card img,
  .page-co-bac-co-trach-nhiem__resource-card img {
    min-width: 200px !important;
    min-height: 200px !important;
  }

  /* 装饰主标题 + 长文 SEO 区 (General section titles and text blocks) */
  .page-co-bac-co-trach-nhiem__section-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem);
    margin-bottom: 30px;
    padding: 0 15px;
  }
  .page-co-bac-co-trach-nhiem__section-description {
    font-size: 1rem;
    margin-bottom: 30px;
    padding: 0 15px;
  }
  .page-co-bac-co-trach-nhiem__text-block {
    font-size: 1rem;
    padding: 0 15px;
  }
  .page-co-bac-co-trach-nhiem__list {
    margin-left: 20px;
    padding-right: 15px;
  }
  .page-co-bac-co-trach-nhiem__text-block p {
    margin-bottom: 10px;
  }
}