.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF5E1; /* Text Main */
  background-color: #B71C1C; /* 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, relying on body padding-top for header offset */
  padding-bottom: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  position: relative;
  z-index: 0;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.6);
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: 40px;
  padding: 0 20px;
}

.page-about__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em);
  font-weight: 700;
  color: #FFD86A; /* Gold from button gradient */
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__hero-description {
  font-size: 1.1em;
  color: #FFF5E1;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__hero-actions {
  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: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for contrast */
  border: none;
  box-shadow: 0 4px 15px rgba(255, 216, 106, 0.4);
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  box-shadow: 0 6px 20px rgba(255, 216, 106, 0.6);
}

.page-about__btn-secondary {
  background: transparent;
  color: #FFD86A;
  border: 2px solid #FFD86A;
}

.page-about__btn-secondary:hover {
  background: #FFD86A;
  color: #7A0E0E;
}

.page-about__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.3;
  color: #FFD86A; /* Gold */
}

.page-about__section-title--light {
  color: #FFD86A;
}

.page-about__mission-vision-section {
  padding: 80px 0;
  background-color: #ffffff;
  color: #333333;
}

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

.page-about__card {
  background: #D32F2F; /* Card BG */
  color: #FFF5E1; /* Text Main */
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.page-about__card-title {
  font-size: 1.6em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFD86A;
}

.page-about__card-text {
  font-size: 1em;
  line-height: 1.7;
}

.page-about__values-section {
  padding: 80px 0;
  background-color: #B71C1C; /* Background */
}

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

.page-about__value-item {
  text-align: center;
  background: #D32F2F; /* Card BG */
  padding: 30px 20px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.page-about__value-item:hover {
  transform: translateY(-5px);
}

.page-about__value-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-about__value-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 10px;
  color: #FFD86A;
}

.page-about__value-description {
  font-size: 0.95em;
  color: #FFF5E1;
}

.page-about__why-choose-section {
  padding: 80px 0;
  background-color: #ffffff;
  color: #333333;
}

.page-about__intro-text {
  text-align: center;
  font-size: 1.1em;
  margin-bottom: 50px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-about__feature-item {
  background: #f5f5f5;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.page-about__feature-item:hover {
  transform: translateY(-5px);
}

.page-about__feature-title {
  font-size: 1.5em;
  font-weight: 600;
  color: #C91F17; /* Main Color */
  margin-bottom: 10px;
}

.page-about__feature-description {
  font-size: 1em;
  color: #555555;
}

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

.page-about__social-responsibility-section {
  padding: 80px 0;
  background-color: #7A0E0E; /* Deep Red */
  color: #FFF5E1;
}

.page-about__responsibility-content {
  display: flex;
  align-items: center;
  gap: 40px;
}

.page-about__responsibility-text {
  flex: 1;
  font-size: 1.1em;
  line-height: 1.8;
}

.page-about__responsibility-image {
  flex: 0 0 auto;
  width: 600px;
  height: 450px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__cta-section {
  padding: 80px 0;
  background-color: #ffffff;
  color: #333333;
  text-align: center;
}

.page-about__cta-text {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

/* --- General Image & Button Sizing --- */
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-about__btn-primary, .page-about__btn-secondary,
.page-about a[class*="button"],
.page-about a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__hero-actions,
.page-about__cta-buttons {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-about__hero-section {
    padding-bottom: 40px;
  }

  .page-about__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }

  .page-about__hero-description {
    font-size: 1em;
  }

  .page-about__section-title {
    font-size: clamp(1.6em, 4vw, 2.5em);
  }

  .page-about__mission-vision-grid,
  .page-about__values-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .page-about__responsibility-content {
    flex-direction: column;
    text-align: center;
  }

  .page-about__responsibility-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    margin-top: 30px;
  }

  .page-about__feature-list {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding, relying on body padding-top for header offset */
    padding-bottom: 30px;
  }

  .page-about__hero-content {
    margin-top: 20px;
    padding: 0 15px;
  }

  .page-about__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
    margin-bottom: 15px;
  }

  .page-about__hero-description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }

  .page-about__hero-actions {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  /* 其他内容模块 */
  .page-about__mission-vision-section,
  .page-about__values-section,
  .page-about__why-choose-section,
  .page-about__social-responsibility-section,
  .page-about__cta-section {
    padding: 40px 0;
  }

  .page-about__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__section-title {
    font-size: clamp(1.5em, 6vw, 2em);
    margin-bottom: 30px;
  }

  .page-about__intro-text,
  .page-about__responsibility-text,
  .page-about__cta-text {
    font-size: 0.9em;
    margin-bottom: 30px;
  }

  .page-about__mission-vision-grid,
  .page-about__values-grid,
  .page-about__feature-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about__card,
  .page-about__value-item,
  .page-about__feature-item {
    padding: 20px;
  }

  .page-about__card-title,
  .page-about__value-title,
  .page-about__feature-title {
    font-size: 1.3em;
  }

  /* 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,
  .page-about__value-item,
  .page-about__feature-item,
  .page-about__hero-image-wrapper,
  .page-about__responsibility-image {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__responsibility-image {
    height: auto;
  }

  /* 按钮与按钮容器 */
  .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: 12px 20px;
  }

  .page-about__hero-actions,
  .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-direction: column !important; /* Force vertical stacking for multiple buttons */
    gap: 15px !important;
  }
}