/* cursor: 关于我们静态页样式，由 React about.css 迁移 */
html {
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

.aboutPage {
  --main-color: #3FCAC0;
  font-family: 'PingFang SC', 'Microsoft YaHei', '思源黑体', sans-serif;
  color: #1F2937;
  background: #fff;
  overflow-x: hidden;
}

.aboutPage .section {
  width: 100%;
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.aboutPage .section-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.aboutPage .section-content {
  width: 1920px;
  max-width: 100%;
  position: relative;
  z-index: 1;
  padding: 0px 60px;
}

.aboutPage .section-title {
  font-size: 48px;
  font-weight: bold;
  color: #1F2937;
  margin-bottom: 40px;
}

.aboutPage .timeline-title {
  font-size: 48px;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 60px;
  transform: translateY(-40px);
  position: relative;
  top: -110px;
}

/* 板块1：Banner */
.aboutPage .banner-section {
  height: 100vh;
  position: relative;
  scroll-snap-align: start;
}

.aboutPage .banner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  padding-top: 350px;
  height: 100%;
}

.aboutPage .banner-title {
  font-size: 72px;
  font-weight: bold;
  color: #fff;
  margin-bottom: 24px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out forwards;
  animation-delay: 0.5s;
}

.aboutPage .banner-subtitle {
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  opacity: 0;
  animation: fadeInUp 0.8s ease-out forwards;
  animation-delay: 0.8s;
}

.aboutPage .banner-desc {
  font-size: 24px;
  color: #0098a3;
  letter-spacing: 20px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  position: absolute;
  bottom: 240px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeInUpCenter 0.8s ease-out forwards;
  animation-delay: 1s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUpCenter {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* 板块2：企业介绍 */
.company-section {
  position: relative;
  overflow: hidden;
  scroll-snap-align: start;
}

.company-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.company-content {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  position: relative;
  z-index: 1;
  min-height: 100vh;

  align-items: flex-start;
  padding: 0;
}

.company-left {
  flex: 0 0 50%;
  padding: 120px 80px 0 150px;
  max-width: 960px;
}

.company-title {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
  font-size: 64px;
  font-weight: bold;
  color: #1F2937;
  margin-bottom: 40px;
}

.company-title.active {
  opacity: 1;
  transform: translateY(0);
}

.company-text {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.company-text.active {
  opacity: 1;
  transform: translateY(0);
}

.company-desc {
  font-size: 17px;
  line-height: 1.5;
  color: #1F2937;
  margin-bottom: 24px;
  max-width: 540px;
}

.company-stats {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 60px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.stat-number-vertical {
  font-size: 56px;
  font-weight: bold;
  color: #0098a3;
  line-height: 1;
}

.stat-desc-vertical {
    font-size: 20px;
    color: #1F2937;
    font-weight: bold;
    line-height: 1.5;
    max-width: 210px;
}

/* 板块3：发展历程 */
.history-section {
  height: 100vh;
  background-image: url('/assets/about/mountain-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-start;
  padding: 0 150px;
}

.timeline-container {
  width: 100%;
  position: relative;
  /* cursor: 整体上移整个时间轴模块（标题+内容）。
     想再往上就增大负值，如 -80px；想往下就减小负值或改 0 */
  margin-top: -60px;
}

.timeline {
  display: flex;
  justify-content: space-between;
  /* cursor: flex-start 让每个 item 高度由自身内容决定，避免 align-items: stretch
     在长描述（如 2014/2018）时把短 item 拉伸到底部对齐、放大底部空白 */
  align-items: flex-start;
  position: relative;
  width: 88%;
  /* cursor: 为负 transform 阶梯偏移预留空间，避免 items 上移溢出覆盖 timeline-title */
  padding-top: 0px;
}

.timeline-item {
  position: relative;
  width: 22%;
}

/* cursor: 用 transform 代替负 margin-top，避免 flex 容器顶部留白
   和 align-items: stretch 拉伸 content box 导致的底部空白放大 */
.timeline-item:nth-child(3) { transform: translateY(-80px); }
.timeline-item:nth-child(4) { transform: translateY(-180px); }
.timeline-item:nth-child(5) { transform: translateY(-270px); }

.year {
  display: flex;
  align-items: flex-end;
  margin-bottom: 20px;
}

.year .line {
  width: 4px;
  height: 60px;
  background-color: #ffffff;
  margin-right: 12px;
  align-self: flex-end;
}

.year .big {
  font-size: 70px;
  font-weight: bold;
  line-height: 1;
  color: #ffffff;
}

.year .right-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-left: 4px;
  line-height: 1.2;
}

.year .small {
  font-size: 32px;
  font-weight: bold;
  color: #ffffff;
}

.year .years {
  font-size: 14px;
  color: #ffffff;
}

.content {
  padding-left: 16px;
}

.content-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 12px;
  line-height: 1.4;
  color: #ffffff;
}

.content-desc {
  font-size: 16px;
  color: #ffffff;
  line-height: 1.6;
}

/* cursor: 发展历程配图占位容器，与 desc 保持间距；无图时不影响布局 */
.content-image {
  margin-top: 16px;
  font-size: 0;
  line-height: 0;
}

.content-image img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: 2px;
  top: 60px;
  width: 2px;
  height: 320px;
  border-left: 2px dashed #ffffff;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 400px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
  z-index: 1;
}

.arrow-left,
.arrow-right {
  position: absolute;
  top: 100px;
  font-size: 40px;
  cursor: pointer;
  user-select: none;
  z-index: 99;
  color: #ffffff;
}

.arrow-left { left: -60px; }
.arrow-right { right: -60px; }

/* 板块5：新闻中心 */
.news-section {
  background-image: url('/assets/about/news-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.news-content-wrapper {
  width: 100%;
  height: 100%;
  padding: 80px 150px;
  display: flex;
  flex-direction: column;
}

.news-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 50px;
}

.news-main-title {
  font-size: 42px;
  font-weight: bold;
  color: #333333;
}

.news-more {
  font-size: 18px;
  color: #0098a3;
  text-decoration: none;
  transition: color 0.3s;
}

.news-more:hover {
  color: #007a83;
}

.news-body {
  display: flex;
  gap: 40px;
  flex: 1;
}

.news-left {
  flex: 3;
  display: flex;
  gap: 30px;
}

.news-card-large {
  flex: 1;
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.news-card-large:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.news-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card-info {
  padding: 24px 20px;
}

.news-date {
  font-size: 14px;
  color: #999999;
  margin-bottom: 12px;
}

.news-card-title {
  font-size: 18px;
  font-weight: 600;
  color: #333333;
  line-height: 1.6;
}

.news-right {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-list-item {
  display: flex;
  gap: 20px;
  align-items: center;
  background: #ffffff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
  flex: 1;
}

.news-list-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.news-list-thumb {
  width: 120px;
  height: 80px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.news-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-list-thumb img.thumb-top {
  object-position: center 5%;
}

.news-list-title {
  font-size: 16px;
  font-weight: 500;
  color: #333333;
  line-height: 1.6;
}

/* 板块6：企业文化 */
.culture-section {
  background-image: url('/assets/about/culture-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.culture-content-wrapper {
  width: 100%;
  padding: 0 100px;
}

.culture-main-title {
  font-size: 42px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 50px;
  text-align: center;
}

.culture-cards {
  display: flex;
  justify-content: center;
  gap: 0;
}

.culture-card {
  padding: 60px 30px;
  color: #000000;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: transparent;
  min-width: 320px;
  border: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.culture-card:hover {
  border-color: #0098a3;
}

.card-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 30px;
  color: #000000;
}

.card-title {
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #000000;
}

.card-desc {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 40px;
  color: #000000;
}

.card-button {
  padding: 6px 18px;
  border: 1px solid #0098a3;
  background: transparent;
  color: #0098a3;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.card-button:hover {
  background-color: #0098a3;
  color: #fff;
}

/* 响应式设计 */
@media (max-width: 1920px) {
  .aboutPage .section-content {
    width: 100%;
  }
}

/* cursor: 1080p 笔记本适配 —— 缩减标题偏移与阶梯幅度，避免内容溢出导致箭头越界 */
@media (max-height: 1000px) {
  .aboutPage .timeline-title {
    top: -60px;
    transform: translateY(-20px);
    margin-bottom: 30px;
  }

  /* cursor: padding-top 与最大 transform 偏移匹配，避免顶部留白；
     偏移幅度比默认小，因为标题偏移已缩减 */
  .timeline {
    padding-top: 100px;
  }

  /* cursor: 同步用 transform 而非 margin-top，避免 flex 拉伸放大留白 */
  .timeline-item:nth-child(3) { transform: translateY(-50px); }
  .timeline-item:nth-child(4) { transform: translateY(-110px); }
  .timeline-item:nth-child(5) { transform: translateY(-170px); }

  .timeline-item::after {
    height: 240px;
  }

  .timeline-item::before {
    top: 320px;
  }
}

@media (max-width: 1200px) {
  .company-content {
    flex-direction: column;
    gap: 60px;
  }

  .company-left {
    padding-right: 0;
  }

  .history-section {
    padding: 0 60px;
  }

  .news-content-wrapper {
    padding: 80px 60px;
  }

  .news-body {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .aboutPage .section-title {
    font-size: 36px;
  }

  .aboutPage .banner-title {
    font-size: 48px;
  }

  .aboutPage .banner-subtitle {
    font-size: 24px;
  }

  .culture-cards {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .company-left {
    padding: 0 24px;
  }
}

/* cursor: 页脚作为吸附停靠点，end 对齐保证底部完整可见且不回滚 */
.aboutPage .footer-snap-section {
  min-height: auto;
  height: auto;
  align-items: flex-start;
  justify-content: flex-start;
  scroll-snap-align: end;
  scroll-snap-stop: normal;
}

.aboutPage .footer-snap-section #site-footer-mount {
  width: 100%;
}

/* cursor: 科技引领 + 成功案例合并吸附页，桌面端收紧以尽量一屏看完 */
.aboutPage .tech-case-section {
  align-items: center;
  justify-content: center;
  background: #f5f7fa;
  height: auto;
  min-height: 100vh;
  padding: 130px 0 150px;
  box-sizing: border-box;
}

.aboutPage .tech-case-inner {
  width: 100%;
  max-width: 1280px;
  min-height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 40px;
  box-sizing: border-box;
}

.aboutPage .tech-case-section .tech-stats {
  padding: 0 0 48px;
  background: transparent;
  text-align: center;
}

.aboutPage .tech-case-section .tech-stats-title {
  font-size: 28px;
  font-weight: 600;
  color: #333;
  margin: 0 0 24px;
}

.aboutPage .tech-case-section .tech-stats-cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.aboutPage .tech-case-section .tech-stat-card {
  flex: 1;
  padding: 30px 20px;
  border-radius: 12px;
  text-align: center;
}

.aboutPage .tech-case-section .tech-stat-card.dark {
  background: #0098a3;
  color: #fff;
}

.aboutPage .tech-case-section .tech-stat-card.dark .tech-stat-number {
  color: #fff;
}

.aboutPage .tech-case-section .tech-stat-card.light {
  background: #fff;
  color: #333;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.aboutPage .tech-case-section .tech-stat-label {
  font-size: 13px;
  margin: 0 0 12px;
  opacity: 0.8;
}

.aboutPage .tech-case-section .tech-stat-card.dark .tech-stat-label {
  color: rgba(255, 255, 255, 0.8);
}

.aboutPage .tech-case-section .tech-stat-number {
  font-size: 40px;
  font-weight: 700;
  color: #1a365d;
  margin: 0;
}

.aboutPage .tech-case-section .case {
  width: 100%;
  padding: 0;
  background: transparent;
}

.aboutPage .tech-case-section .case-section-title {
  text-align: center;
  margin-bottom: 80px;
}

.aboutPage .tech-case-section .case-section-title h2 {
  font-size: 28px;
  color: #1a1a1a;
  margin: 0 0 px;
  font-weight: 600;
}

.aboutPage .tech-case-section .case-section-title p {
  font-size: 14px;
  color: #666;
  margin: 0;
  line-height: 1.6;
}

.aboutPage .tech-case-section .case-container {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
}

.aboutPage .tech-case-section .case-logo {
  position: relative;
  margin-bottom: 0;
}

.aboutPage .tech-case-section .case-logo-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.aboutPage .tech-case-section .case-logo-row {
  display: flex;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 20px;
}

.aboutPage .tech-case-section .case-logo-item {
  width: 128px;
  height: 64px;
  background-color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  border: 1px solid #eaecef;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.aboutPage .tech-case-section .case-logo-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  opacity: 0.75;
  transition: opacity 0.3s ease;
}

.aboutPage .tech-case-section .case-logo-item:hover {
  opacity: 1;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(63, 202, 192, 0.15);
  border-color: #3FCAC0;
}

.aboutPage .tech-case-section .case-logo-item:hover img {
  opacity: 1;
}

.aboutPage .tech-case-section .case-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.aboutPage .tech-case-section .case-card {
  background-color: #fff;
  border-radius: 10px;
  padding: 18px 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.aboutPage .tech-case-section .case-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 10px;
  color: #1a1a1a;
}

.aboutPage .tech-case-section .case-card .case-desc {
  font-size: 13px;
  color: #666;
  margin: 0 0 12px;
  line-height: 1.55;
}

.aboutPage .tech-case-section .case-card .case-data {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  font-size: 13px;
  color: #333;
}

.aboutPage .tech-case-section .case-data span {
  color: #3FCAC0;
  font-weight: 600;
}

@media (max-width: 1200px) {
  .aboutPage .tech-case-section .case-container {
    width: 90%;
  }

  .aboutPage .tech-case-inner {
    padding: 0 24px;
  }

  .aboutPage .tech-case-section .case-logo-item {
    width: 108px;
    height: 54px;
    padding: 10px;
  }
}

@media (max-width: 900px) {
  .aboutPage .tech-case-section {
    height: auto;
    min-height: 100vh;
    overflow: visible;
    padding: 100px 0 60px;
  }

  .aboutPage .tech-case-inner {
    justify-content: flex-start;
    padding: 0 16px;
  }

  .aboutPage .tech-case-section .tech-stats-cards {
    flex-direction: column;
    max-width: 420px;
  }

  .aboutPage .tech-case-section .case-logo-row {
    flex-wrap: wrap;
    gap: 12px;
  }

  .aboutPage .tech-case-section .case-logo-item {
    width: calc((100% - 36px) / 4);
    min-width: 72px;
    height: 52px;
  }

  .aboutPage .tech-case-section .case-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}
/* 科研成果板块 */
.research-section {
  padding: 80px 80px;
  background: #fff;
  overflow: visible;
  box-sizing: border-box;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.research-section *,
.research-section *::before,
.research-section *::after {
  box-sizing: border-box;
}
.research-header {
  text-align: center;
  margin-bottom: 50px;
}
.research-header h2 {
  font-size: 28px;
  color: #333;
  margin: 0 0 12px;
}
.research-header p {
  font-size: 14px;
  color: #999;
  margin: 0;
}
/* cursor: 百叶窗证书展示区样式，与 cases.html 保持一致 */
.blinds-container {
  position: relative;
  width: 100%;
  height: 620px;
  margin-bottom: 40px;
  overflow: hidden;
  user-select: none;
}
.blinds-track {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 380px;
  perspective: 1200px;
  perspective-origin: center center;
}
.blind-card {
  position: relative;
  width: 280px;
  height: 380px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
  border-radius: 4px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15), 0 2px 8px rgba(0,0,0,0.1);
  margin: 0 -130px;
  overflow: hidden;
  transform-origin: center center;
  will-change: transform;
  border: 1px solid rgba(0,0,0,0.06);
  cursor: pointer;
}
.blind-card .blind-side-tag {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  font-size: 13px;
  color: #fff;
  font-weight: 700;
  letter-spacing: 2px;
  z-index: 2;
}
.blind-cert-content {
  width: 100%;
  height: 100%;
  padding: 30px 25px 25px 48px;
  display: flex;
  flex-direction: column;
  position: relative;
  background: linear-gradient(180deg, #fefefe 0%, #f5f5f0 100%);
}
.blind-cert-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid #e8e8e8;
}
.blind-cert-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1a3a6b 0%, #2d5a9e 100%);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.blind-cert-logo::after {
  content: '证';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}
.blind-cert-logo.nqa {
  background: linear-gradient(135deg, #5b9bd5 0%, #7ab3eb 100%);
}
.blind-cert-logo.nqa::after { content: 'N'; font-size: 16px; }
.blind-cert-title {
  font-size: 13px;
  font-weight: 700;
  color: #1a3a6b;
  line-height: 1.4;
}
.blind-cert-body {
  flex: 1;
  font-size: 11px;
  color: #555;
  line-height: 2;
  padding-top: 8px;
}
.blind-cert-body.en {
  font-size: 10px;
  line-height: 1.8;
  font-family: 'Times New Roman', serif;
}
.blind-cert-body p { margin: 0; }
.blind-cert-seal {
  position: absolute;
  right: 20px;
  bottom: 25px;
  width: 55px;
  height: 55px;
  border: 3px solid #c0392b;
  border-radius: 50%;
  opacity: 0.7;
}
.blind-cert-seal::before {
  content: '★';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #c0392b;
  font-size: 20px;
}
/* cursor: 证书图片填充卡片，contain 保证完整展示 */
.blind-cert-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #fff;
  /* cursor: 加载完成前透明，避免白板突兀切换为图片；is-loaded 由 img onload 添加 */
  opacity: 0;
  transition: opacity 0.4s ease;
}
.blind-cert-img.is-loaded {
  opacity: 1;
}
/* cursor: 中心证书点击放大查看 lightbox，原图高分辨率可看清小字 */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.88);
}
.cert-lightbox.cert-lightbox-open {
  display: flex;
}
.cert-lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  background: #fff;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}
.cert-lightbox-close,
.cert-lightbox-nav {
  position: absolute;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.cert-lightbox-close:hover,
.cert-lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.3);
}
.cert-lightbox-close {
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  font-size: 28px;
  line-height: 1;
  border-radius: 50%;
}
.cert-lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 22px;
  border-radius: 50%;
}
.cert-lightbox-prev { left: 24px; }
.cert-lightbox-next { right: 24px; }
/* cursor: 左右箭头切换按钮，配合点击切卡交互 */
.blinds-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #1a3a6b;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.2s ease, opacity 0.2s ease;
}
.blinds-nav-btn:hover:not(:disabled) {
  background: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.16);
}
.blinds-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.blinds-nav-prev { left: 16px; }
.blinds-nav-next { right: 16px; }
.blinds-hint {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  color: #999;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  opacity: 0.8;
}
.patent-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  align-items: center;
}
.patent-stat {
  text-align: center;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}
.patent-stat .patent-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--main-color);
}
.patent-stat .patent-label {
  font-size: 13px;
  color: #999;
  margin-top: 4px;
}
.laurel-left, .laurel-right { flex-shrink: 0; opacity: 0.7; }

/* 科研合作板块 */
.cooperation-section {
  height: 720px;
  padding: 56px 64px;
  background: url('/assets/cooperation-bg.jpg') center center / cover no-repeat;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  box-sizing: border-box;
}
.cooperation-section *,
.cooperation-section *::before,
.cooperation-section *::after {
  box-sizing: border-box;
}
.cooperation-left {
  width: 100%;
  max-width: 620px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 0 0 120px;
  height: 100%;
}
.cooperation-left h2 {
  font-size: 26px;
  color: #333;
  margin: 0 0 14px;
}
.cooperation-left p {
  font-size: 15px;
  color: #999;
  line-height: 1.8;
  margin: 0;
}
.cooperation-right {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.uni-card {
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, #e6f0ff, #d0e8f7);
}
.uni-card .uni-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 14px;
  text-align: center;
}

/* 重要奖项板块 */
.awards-section {
  height: 720px;
  padding: 56px 64px;
  background: url('/assets/awards-bg.jpg') center center / cover no-repeat;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  box-sizing: border-box;
}
.awards-section *,
.awards-section *::before,
.awards-section *::after {
  box-sizing: border-box;
}
.awards-left {
  flex: 1;
  position: relative;
}
.awards-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.award-item {
  background: #faf8f5;
  border-radius: 6px;
  padding: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  text-align: center;
}
.award-item.gold-medal {
  border: 2px solid #d4a843;
  width: 200px;
}
.award-item.gold-medal h4 {
  color: #8b6914;
  font-size: 13px;
}
.award-item.gold-medal p {
  font-size: 11px;
  color: #666;
  margin-top: 6px;
}
.award-item.certificate {
  border: 2px solid #c0392b;
  width: 180px;
}
.award-item.certificate h4 {
  color: #c0392b;
  font-size: 12px;
}
.award-row {
  display: flex;
  gap: 20px;
}
.awards-right {
  grid-column: 2;
  justify-self: end;
  width: auto;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 56px 0 24px;
  height: 100%;
  text-align: left;
}
.awards-right h2 {
  font-size: 26px;
  color: #333;
  margin: 0 0 14px;
}
.awards-right p {
  font-size: 15px;
  color: #999;
  line-height: 1.8;
  margin: 0;
}

/* 荣誉资质板块 */
.qualification-section {
  min-height: 100vh;
  padding: 80px;
  background: url('/assets/qualification-bg.jpg') center center / cover no-repeat;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.qualification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 50px;
}
.qualification-header h2 {
  font-size: 28px;
  color: #333;
}
.qualification-header .qual-subtitle {
  font-size: 14px;
  color: #999;
  margin-top: 6px;
}
.qualification-header .view-all {
  color: #3FCAC0;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid #3FCAC0;
  padding: 6px 20px;
  border-radius: 20px;
  transition: all 0.3s;
}
.qualification-header .view-all:hover {
  background: #3FCAC0;
  color: #fff;
}
.qualification-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.qual-card {
  background: #fff;
  border-radius: 8px;
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: transform 0.3s;
}
.qual-card:hover {
  transform: translateY(-5px);
}
.qual-card .qual-img {
  width: 100%;
  height: 260px;
  background: linear-gradient(135deg, #f0f4f8, #e8edf2);
  border-radius: 4px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}
.qual-card .qual-name {
  font-size: 14px;
  color: #333;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qual-card .qual-desc {
  display: none;
}
/* cursor: 工作地点板块，整屏显示：高度精确等于 viewport 可视区，避免吸附后图片被遮挡
   选择器提升为 .aboutPage .section.location-section，优先级高于 .aboutPage .section 的 min-height: 100vh */
.aboutPage .section.location-section {
  background: #fff;
  height: calc(100vh - 80px);
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  padding: 0;
  box-sizing: border-box;
}
.location-inner {
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 0;
  overflow: hidden;
}
.location-map {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  margin: 0 auto;
}
@media (max-width: 1200px) {
  .aboutPage .section.location-section {
    height: auto;
    min-height: auto;
    padding: 30px 16px;
  }
  .location-inner {
    height: auto;
  }
  .location-map {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
}
@media (max-width: 768px) {
  .aboutPage .section.location-section {
    padding: 20px 12px;
  }
}
@media (max-width: 1200px) {
  .research-section, .qualification-section {
      padding: 60px 40px;
  }
  .cooperation-section,
  .awards-section {
      padding: 48px 32px;
      grid-template-columns: 1fr;
      height: auto;
      min-height: 400px;
  }
  .cooperation-left {
      max-width: none;
      padding: 32px 20px;
  }
  .awards-right {
      grid-column: 1;
      justify-self: stretch;
      max-width: none;
      padding: 32px 20px;
  }
  .cooperation-right {
      grid-template-columns: repeat(2, 1fr);
  }
  .qualification-cards {
      grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .blinds-container { height: 320px; }
  .blinds-track { height: 280px; }
  .blind-card { width: 200px; height: 280px; margin: 0 -100px; }
  .blind-cert-content { padding: 20px 15px 15px 40px; }
  .blind-cert-title { font-size: 11px; }
  .blind-cert-body { font-size: 9px; line-height: 1.8; }
  .blind-cert-seal { width: 40px; height: 40px; right: 12px; bottom: 15px; }
  .blinds-nav-btn { width: 36px; height: 36px; font-size: 14px; }
  .blinds-nav-prev { left: 8px; }
  .blinds-nav-next { right: 8px; }
  .patent-stats { gap: 20px; flex-wrap: wrap; }
  .patent-stat .patent-num { font-size: 24px; }
  .laurel-left, .laurel-right { width: 28px; height: 56px; }
}