.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #ffffff; /* Body background is dark, so text should be light */
  background-color: #000000; /* Ensure consistency with body background */
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__hero-section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 700px;
  padding-top: var(--header-offset, 120px);
  overflow: hidden;
  background-color: #017439; /* Fallback */
}

.page-about__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  opacity: 0.5;
}

.page-about__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.page-about__hero-description {
  font-size: 1.3em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #ffffff;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.6);
}

.page-about__hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.page-about__section-title {
  font-size: 2.8em;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
  padding-bottom: 15px;
}

.page-about__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #017439;
  border-radius: 2px;
}

.page-about__intro-text {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 60px auto;
  line-height: 1.8;
}

.page-about__mission-vision,
.page-about__history,
.page-about__values,
.page-about__why-choose,
.page-about__team,
.page-about__social-responsibility,
.page-about__faq,
.page-about__cta {
  padding: 80px 0;
}

.page-about__dark-bg {
  background-color: #000000;
  color: #ffffff;
}

.page-about__light-bg {
  background-color: #f0f0f0;
  color: #333333;
}

.page-about__light-bg .page-about__section-title,
.page-about__light-bg .page-about__intro-text,
.page-about__light-bg .page-about__sub-title,
.page-about__light-bg .page-about__value-title,
.page-about__light-bg .page-about__feature-title,
.page-about__light-bg .page-about__member-name,
.page-about__light-bg .page-about__member-role,
.page-about__light-bg .page-about__faq-qtext {
  color: #333333;
}

.page-about__light-bg .page-about__section-title::after {
  background-color: #017439;
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.page-about__text-block h3 {
  font-size: 1.8em;
  margin-bottom: 20px;
  color: #017439;
}

.page-about__text-block p {
  margin-bottom: 15px;
  line-height: 1.7;
}

.page-about__content-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 40px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.page-about__timeline {
  display: flex;
  flex-direction: column;
  position: relative;
  padding: 40px 0;
  max-width: 900px;
  margin: 0 auto;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  height: 100%;
  width: 4px;
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateX(-50%);
}

.page-about__timeline-item {
  width: 50%;
  padding: 20px 40px;
  position: relative;
  box-sizing: border-box;
}

.page-about__timeline-item:nth-child(odd) {
  align-self: flex-start;
  text-align: right;
  padding-right: 60px;
}

.page-about__timeline-item:nth-child(even) {
  align-self: flex-end;
  text-align: left;
  padding-left: 60px;
}

.page-about__timeline-item::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 20px;
  height: 20px;
  background-color: #017439;
  border: 4px solid #ffffff;
  border-radius: 50%;
  transform: translateY(-50%);
  z-index: 1;
}

.page-about__timeline-item:nth-child(odd)::before {
  right: -10px;
}

.page-about__timeline-item:nth-child(even)::before {
  left: -10px;
}

.page-about__timeline-year {
  font-size: 1.5em;
  color: #017439;
  margin-bottom: 10px;
}

.page-about__timeline-item p {
  font-size: 1em;
  color: #f0f0f0;
}

.page-about__values-grid,
.page-about__features-grid,
.page-about__team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-about__value-card,
.page-about__feature-item,
.page-about__team-member {
  background-color: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.page-about__light-bg .page-about__value-card,
.page-about__light-bg .page-about__feature-item,
.page-about__light-bg .page-about__team-member {
  background-color: #ffffff;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.page-about__value-card:hover,
.page-about__feature-item:hover,
.page-about__team-member:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.1);
}

.page-about__light-bg .page-about__value-card:hover,
.page-about__light-bg .page-about__feature-item:hover,
.page-about__light-bg .page-about__team-member:hover {
  background-color: #f9f9f9;
}

.page-about__value-title,
.page-about__feature-title {
  font-size: 1.6em;
  color: #017439;
  margin-bottom: 15px;
}

.page-about__value-card p,
.page-about__feature-item p {
  font-size: 1em;
  color: #f0f0f0;
}

.page-about__light-bg .page-about__value-card p,
.page-about__light-bg .page-about__feature-item p {
  color: #555555;
}

.page-about__member-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  border: 4px solid #017439;
}

.page-about__member-name {
  font-size: 1.4em;
  color: #017439;
  margin-bottom: 5px;
}

.page-about__member-role {
  font-size: 1em;
  color: #999999;
  margin-bottom: 15px;
}

.page-about__member-bio {
  font-size: 0.9em;
  color: #f0f0f0;
}

.page-about__light-bg .page-about__member-bio {
  color: #666666;
}

.page-about__responsibility-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.page-about__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-about__faq-item {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  color: #333333;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  background-color: #f9f9f9;
  color: #333333;
  user-select: none;
  list-style: none;
}

.page-about__faq-question::-webkit-details-marker {
  display: none;
}

.page-about__faq-qtext {
  flex-grow: 1;
  color: #333333;
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 20px;
  color: #017439;
}

.page-about__faq-answer {
  padding: 15px 25px 25px;
  font-size: 1em;
  line-height: 1.7;
  color: #555555;
}

.page-about__faq-answer p {
  margin-bottom: 10px;
}

.page-about__cta {
  text-align: center;
}

.page-about__btn-primary {
  display: inline-block;
  background-color: #C30808; /* Register/Login color */
  color: #FFFF00; /* Register/Login font color */
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
}

.page-about__btn-primary:hover {
  background-color: #a30606;
  transform: translateY(-3px);
}

.page-about__btn-secondary {
  display: inline-block;
  background-color: transparent;
  color: #ffffff;
  padding: 15px 30px;
  border: 2px solid #ffffff;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.page-about__btn-secondary:hover {
  background-color: #ffffff;
  color: #000000;
  transform: translateY(-3px);
}

.page-about__btn-large {
  padding: 18px 40px;
  font-size: 1.3em;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__hero-title {
    font-size: 3em;
  }
  .page-about__hero-description {
    font-size: 1.1em;
  }
  .page-about__section-title {
    font-size: 2.2em;
  }
  .page-about__content-grid,
  .page-about__responsibility-content {
    grid-template-columns: 1fr;
  }
  .page-about__timeline::before {
    left: 20px;
  }
  .page-about__timeline-item {
    width: 100%;
    padding-left: 60px;
    padding-right: 20px;
    text-align: left;
  }
  .page-about__timeline-item:nth-child(odd) {
    padding-right: 20px;
    text-align: left;
  }
  .page-about__timeline-item:nth-child(odd)::before {
    left: 10px;
    right: auto;
  }
  .page-about__timeline-item:nth-child(even)::before {
    left: 10px;
  }
}

@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-about__hero-section {
    min-height: 500px;
    padding-top: var(--header-offset, 120px) !important; /* Ensure mobile header offset */
  }
  .page-about__hero-title {
    font-size: 2.2em;
  }
  .page-about__hero-description {
    font-size: 1em;
  }
  .page-about__hero-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }
  .page-about__intro-text {
    font-size: 0.95em;
    margin-bottom: 40px;
  }
  .page-about__mission-vision,
  .page-about__history,
  .page-about__values,
  .page-about__why-choose,
  .page-about__team,
  .page-about__social-responsibility,
  .page-about__faq,
  .page-about__cta {
    padding: 50px 0;
  }
  .page-about__content-image,
  .page-about__member-avatar {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-about__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .page-about__content-grid,
  .page-about__values-grid,
  .page-about__features-grid,
  .page-about__team-grid,
  .page-about__responsibility-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__text-block h3 {
    font-size: 1.5em;
  }
  .page-about__timeline {
    padding: 20px 0;
  }
  .page-about__timeline::before {
    left: 15px;
  }
  .page-about__timeline-item {
    padding-left: 45px;
  }
  .page-about__timeline-item:nth-child(odd)::before,
  .page-about__timeline-item:nth-child(even)::before {
    left: 5px;
    width: 15px;
    height: 15px;
  }
  .page-about__value-title,
  .page-about__feature-title {
    font-size: 1.4em;
  }
  .page-about__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }
  .page-about__faq-answer {
    padding: 10px 20px 20px;
  }
  .page-about__btn-large {
    padding: 15px 30px;
    font-size: 1.1em;
  }
}

/* Ensure no filter effects are applied to images */
.page-about img {
  filter: none !important;
}