.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--background);
}

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

.page-about__hero-section {
  padding-top: 10px; /* Small top padding, main offset from body */
  padding-bottom: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--deep-green) 0%, var(--background) 100%);
}

.page-about__hero-image-wrapper {
  margin-bottom: 40px;
}

.page-about__hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.page-about__main-title {
  font-size: clamp(2.2em, 4vw, 3.2em);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-about__intro-description {
  font-size: 1.1em;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(17, 168, 78, 0.4);
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(17, 168, 78, 0.6);
}

.page-about__btn-secondary {
  background: var(--card-b-g);
  color: var(--text-main);
  border: 2px solid var(--border);
}

.page-about__btn-secondary:hover {
  background: var(--border);
  color: #ffffff;
  border-color: var(--glow);
  transform: translateY(-2px);
}

.page-about__section {
  padding: 60px 0;
}

.page-about__dark-section {
  background-color: var(--background);
  color: var(--text-main);
}

.page-about__light-bg {
  background-color: var(--card-b-g);
  color: var(--text-main);
}

.page-about__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  font-weight: 700;
  color: var(--glow);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.page-about__section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--glow), transparent);
  margin: 15px auto 0;
  border-radius: 2px;
}

.page-about__section-description {
  font-size: 1.05em;
  color: var(--text-secondary);
  text-align: center;
  max-width: 900px;
  margin: -20px auto 40px auto;
}

.page-about__grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-about__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.page-about__card {
  background-color: var(--card-b-g);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main);
}

.page-about__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__card-title,
.page-about__feature-title {
  font-size: 1.6em;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 15px;
  text-align: center;
}

.page-about__feature-card .page-about__feature-title {
  color: var(--glow);
}

.page-about__value-list,
.page-about__responsibility-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about__value-list li,
.page-about__responsibility-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  color: var(--text-secondary);
}

.page-about__value-list li strong,
.page-about__responsibility-list li strong {
  color: var(--text-main);
}

.page-about__value-list li::before,
.page-about__responsibility-list li::before {
  content: '✔';
  color: var(--glow);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-about__feature-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 20px auto;
  border-radius: 8px;
}

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

.page-about__team-member {
  text-align: center;
}

.page-about__team-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 4px solid var(--glow);
}

.page-about__member-name {
  font-size: 1.4em;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 5px;
}

.page-about__member-position {
  font-size: 0.95em;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.page-about__member-bio {
  font-size: 0.9em;
  color: var(--text-secondary);
}

.page-about__achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__achievement-item {
  text-align: center;
  padding: 25px;
}

.page-about__achievement-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 15px;
}

.page-about__achievement-title {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--glow);
  margin-bottom: 10px;
}

.page-about__learn-more-btn {
  margin-top: 30px;
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* General image responsive styles */
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Mobile Responsive Styles */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: clamp(2em, 5vw, 2.8em);
  }
  .page-about__section-title {
    font-size: clamp(1.6em, 4vw, 2.4em);
  }
  .page-about__feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  .page-about__team-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  .page-about__achievement-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 40px;
  }
  .page-about__hero-image-wrapper {
    margin-bottom: 20px;
  }
  .page-about__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
    margin-bottom: 15px;
  }
  .page-about__intro-description {
    font-size: 1em;
    margin-bottom: 25px;
  }

  /* 其他内容模块 */
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: clamp(1.5em, 6vw, 2.2em);
    margin-bottom: 30px;
  }
  .page-about__section-description {
    font-size: 0.95em;
    margin: -15px auto 30px auto;
    padding: 0 15px;
  }
  .page-about__grid-layout,
  .page-about__feature-grid,
  .page-about__team-grid,
  .page-about__achievement-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__card {
    padding: 20px;
  }
  .page-about__card-title,
  .page-about__feature-title {
    font-size: 1.4em;
  }
  .page-about__team-image {
    width: 120px;
    height: 120px;
  }
  .page-about__achievement-icon {
    width: 60px;
    height: 60px;
  }
  .page-about__value-list li,
  .page-about__responsibility-list li {
    font-size: 0.9em;
  }

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__section,
  .page-about__card,
  .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 按钮与按钮容器 */
  .page-about__cta-buttons {
    flex-direction: column !important;
    gap: 15px;
    padding: 0 15px;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about a[class*="btn"] {
    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__cta-buttons,
  .page-about__button-group,
  .page-about__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  .page-about__learn-more-btn {
    width: 100% !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
}