/* style/about.css */

:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --text-main: #F3F8FF;
  --text-secondary: #AFC4E8;
  --card-bg: #10233F;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold-color: #F2C14E;
  --divider-color: #1B3357;
  --deep-navy: #08162B;
  --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Default text color for dark body background */
  background-color: var(--deep-navy);
}

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

.page-about__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, relying on body padding-top for header offset */
  padding-bottom: 0;
  background-color: var(--deep-navy);
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 675px; /* Limit height for hero image */
  overflow: hidden;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about__hero-content {
  width: 100%;
  padding: 40px 20px;
  background: var(--card-bg); /* Using card background for hero content to stand out */
  color: var(--text-main);
  box-sizing: border-box;
  border-radius: 10px 10px 0 0;
  margin-top: -50px; /* Overlap slightly with image for visual appeal */
  position: relative;
  z-index: 1;
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  font-weight: 700;
  color: var(--gold-color);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-about__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,
.page-about__btn-link,
.page-about a[class*="button"],
.page-about a[class*="btn"] {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-about__btn-primary {
  background: var(--button-gradient);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-about__btn-secondary {
  background: #ffffff;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.page-about__btn-secondary:hover {
  background: var(--primary-color);
  color: #ffffff;
  border-color: #ffffff;
}

.page-about__btn-link {
  background: transparent;
  color: var(--gold-color);
  border: 1px solid var(--gold-color);
  padding: 8px 15px;
  font-size: 0.9em;
}

.page-about__btn-link:hover {
  background: var(--gold-color);
  color: var(--deep-navy);
}

.page-about__section-title {
  font-size: 2.5em;
  color: var(--gold-color);
  text-align: center;
  margin-bottom: 40px;
  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: var(--gold-color);
  border-radius: 2px;
}

.page-about__intro-section,
.page-about__products-services-section,
.page-about__vision-mission-section,
.page-about__cta-section {
  padding: 60px 0;
  background-color: var(--deep-navy);
}

.page-about__history-section,
.page-about__commitment-section {
  padding: 60px 0;
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-about__text-block {
  font-size: 1.05em;
  color: var(--text-secondary);
  margin-bottom: 20px;
  text-align: justify;
}

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

.page-about__text-column {
  flex: 1;
}

.page-about__image-column {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__image-responsive {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
}

.page-about__content-flex--reverse {
  flex-direction: row-reverse;
}

.page-about__grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__grid-item {
  background: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about__image-grid {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: 15px;
  display: block;
}

.page-about__grid-title {
  font-size: 1.5em;
  color: var(--gold-color);
  margin-bottom: 10px;
  padding: 0 15px;
}

.page-about__grid-text {
  font-size: 0.95em;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding: 0 15px;
  flex-grow: 1;
}

.page-about__vision-mission-grid {
  display: flex;
  gap: 30px;
  margin-top: 40px;
}

.page-about__vision-mission-item {
  flex: 1;
  background: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__value-list {
  list-style: none;
  padding: 0;
  margin-top: 15px;
}

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

.page-about__value-list li::before {
  content: '✔';
  color: var(--gold-color);
  position: absolute;
  left: 0;
  top: 0;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -30px;
  }
  .page-about__section-title {
    font-size: 2em;
  }
  .page-about__content-flex {
    flex-direction: column;
  }
  .page-about__vision-mission-grid {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important;
  }
  .page-about__hero-content {
    padding: 30px 15px !important;
    margin-top: -20px !important;
  }
  .page-about__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em) !important;
  }
  .page-about__description {
    font-size: 1em !important;
  }

  /* 产品展示图区域 / 通用图片与容器 */
  .page-about__grid-layout {
    grid-template-columns: 1fr !important; /* Single column for products */
    gap: 20px !important;
  }
  .page-about__image-grid,
  .page-about__image-responsive {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__container,
  .page-about__intro-section,
  .page-about__history-section,
  .page-about__products-services-section,
  .page-about__commitment-section,
  .page-about__vision-mission-section,
  .page-about__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  /* 按钮与按钮容器 */
  .page-about__cta-buttons {
    flex-direction: column !important;
    gap: 10px !important;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-link,
  .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 !important;
    padding-right: 15px !important;
  }
  .page-about__content-flex {
    flex-direction: column !important;
    gap: 20px !important;
  }
  .page-about__content-flex--reverse {
    flex-direction: column !important;
  }
  .page-about__vision-mission-grid {
    flex-direction: column !important;
    gap: 20px !important;
  }

  /* 其他内容模块 */
  .page-about__section-title {
    font-size: 1.8em !important;
    margin-bottom: 30px !important;
  }
  .page-about__text-block,
  .page-about__grid-text,
  .page-about__value-list li {
    font-size: 0.95em !important;
  }
  .page-about__grid-title {
    font-size: 1.3em !important;
  }
  .page-about__intro-section,
  .page-about__history-section,
  .page-about__products-services-section,
  .page-about__commitment-section,
  .page-about__vision-mission-section,
  .page-about__cta-section {
    padding: 40px 0 !important;
  }
}