/* 关于页面样式 */

/* 关于我们主区域 */
.about-hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  color: white;
  overflow: hidden;
}

.about-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url(../images/about-banner-bg.png);
  background-repeat: no-repeat;
  background-size: cover;
  z-index: -2;
}

@keyframes shimmer {
  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

.about-hero .container {
  position: relative;
}

.about-hero-content {
  width: 90rem;
  text-align: left;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.about-title {
  font-size: 5.2rem;
  font-weight: bold;
  margin-bottom: 2.4rem;
  color: white;
  text-align: left;
}

.about-description {
  font-size: 1.4rem;
  line-height: 2;
  margin-bottom: 3rem;
  text-align: left;
}

.about-description p {
  margin-bottom: 1.6rem;
  color: rgba(255, 255, 255, 1);
}

/* 数据统计 */
.about-stats {
  display: flex;
  justify-content: center;
  border-top: 0.1rem solid rgba(255, 255, 255, 0.2);
  background: rgba(15, 54, 103, 0.5);
  width: 100%;
  position: absolute;
  bottom: 0;
  left: 0;
}

.about-stats > .container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}

.stat-item {
  text-align: left;
  position: relative;
  padding: 2.4rem;
}

.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 0.1rem;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
}

.stat-item-top {
  display: flex;
  align-items: center;
  margin-bottom: 0.4rem;
}

.stat-item-top > .e {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-number {
  font-size: 4.8rem;
  color: #ffffff;
  background-clip: text;
  display: flex;
  align-items: center;
  margin-right: 0.8rem;
  line-height: 1.1;
}

.stat-label {
  font-size: 1.4rem;
  opacity: 0.9;
  color: rgba(255, 255, 255, 0.9);
}

/* 通用section样式 */
.section-title {
  font-size: 3.6rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 3rem;
  color: #1a202c;
  position: relative;
}

/* 企业文化 */
.company-culture {
  padding: 10rem 0;
  background: rgba(247, 248, 251, 1);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  margin: 0 auto;
}

.culture-item {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  height: 54rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.culture-item:hover {
  box-shadow: 0 2rem 4rem rgba(0, 0, 0, 0.1);
}

.culture-image {
  position: relative;
  width: 100%;
  height: 100%;
}

.culture-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.culture-item:hover .culture-image img {
  transform: scale(1.05);
}

.culture-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 3rem;
  transition: transform 0.3s ease;
}

.culture-overlay h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.culture-overlay p {
  font-size: 1.4rem;
  opacity: 0.9;
}

/* 发展历程轮播 */
.development-history {
  padding: 10rem 0;
  background: linear-gradient(
    180deg,
    rgba(247, 248, 251, 1) 0%,
    rgba(232, 246, 255, 1) 49.74%,
    rgba(247, 248, 251, 1) 100%
  );
}

.timeline-carousel {
  margin: 0 auto;
  position: relative;
}

.timeline-wrapper {
  overflow: hidden;
  border-radius: 1.5rem;
  position: relative;
  padding: 1rem;
}

.timeline-track {
  display: flex;
  will-change: transform;
  /* 提示浏览器这个元素会发生变换 */
  transform: translateZ(0);
  /* 启用硬件加速 */
  backface-visibility: hidden;
  /* 避免闪烁 */
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline-item {
  flex: 0 0 25%;
  /* 每个项目占25%宽度，一行显示4个 */
  padding: 1rem;
  box-sizing: border-box;
  transform: translateZ(0);
  /* 启用硬件加速 */
  backface-visibility: hidden;
  /* 避免闪烁 */
}

/* 克隆项目样式 */
.timeline-item.timeline-clone {
  opacity: 1;
}

.timeline-content {
  background: white;
  border-radius: 1.2rem;
  padding: 1.6rem;
  text-align: left;
  min-height: 22rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  transform: translateZ(0);
  /* 启用硬件加速 */
  box-shadow: 0 0.4rem 1.5rem rgba(102, 126, 234, 0.1);
  height: 54rem;
}

.timeline-content:hover {
  transform: translateY(-0.2rem) translateZ(0);
  box-shadow: 0 0.8rem 2.5rem rgba(102, 126, 234, 0.15);
}

.timeline-content h3 {
  font-size: 3.2rem;
  font-weight: 600;
  color: #1682d6;
}

.timeline-content p {
  font-size: 1.6rem;
  color: #a2a3a5;
  margin-bottom: 4rem;
  height: 4rem;
}

.timeline-details {
  flex: 1;
}

.timeline-details ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.timeline-details li {
  color: #333;
  line-height: 1.6;
  font-size: 1.4rem;
  margin-bottom: 2.4rem;
  padding-left: 1.6rem;
  position: relative;
}

.timeline-details li:before {
  content: "•";
  color: #848586;
  font-weight: bold;
  position: absolute;
  left: 0;
  top: -0.4rem;
  font-size: 2rem;
}

.timeline-details li:last-child {
  margin-bottom: 0;
}

/* 轮播导航按钮 */
.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 5rem;
  height: 5rem;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  box-shadow: 0 0.4rem 1.5rem rgba(0, 0, 0, 0.1);
  color: #667eea;
}

.carousel-nav:hover {
  background: white;
  box-shadow: 0 0.6rem 2rem rgba(0, 0, 0, 0.15);
  transform: translateY(-50%) scale(1.1);
}

.carousel-nav:active {
  transform: translateY(-50%) scale(0.95);
}

.carousel-prev {
  left: -2.5rem;
}

.carousel-next {
  right: -2.5rem;
}

.carousel-nav svg {
  transition: transform 0.2s ease;
}

.carousel-nav:hover svg {
  transform: scale(1.1);
}

/* 轮播指示器已在 styles.css 统一定义 */
.timeline-indicators {
  display: flex;
  justify-content: center;
  gap: 1.6rem;
  margin-top: 4rem;
}

/* 荣誉资质 */
.honors-qualifications {
  padding: 5rem 0 15rem;
  background: #f8fafc;
}

.honors-title {
  font-size: 3.6rem;
  font-weight: 700;
  text-align: center;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.honors-description {
  font-size: 1.6rem;
  font-weight: 400;
  text-align: left;
  color: #a2a3a5;
  margin-bottom: 3rem;
}

.honors-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.honors-text {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  max-height: 54rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #e5e7eb transparent;
}

.honors-text::-webkit-scrollbar {
  width: 0.4rem;
}

.honors-text::-webkit-scrollbar-track {
  background: transparent;
}

.honors-text::-webkit-scrollbar-thumb {
  background-color: #e5e7eb;
  border-radius: 0.2rem;
}

.honors-text::-webkit-scrollbar-thumb:hover {
  background-color: #d1d5db;
}

.honor-item {
  padding: 1.6rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border-bottom: 0.1rem solid rgba(162, 163, 165, 0.3);
  display: flex;
  align-items: center;
}

/* PC端隐藏图片 */
.honor-item-image {
  display: none;
}

.honor-item:hover {
  background: rgba(102, 126, 234, 0.05);
}

.honor-item.active {
  border-color: rgba(102, 126, 234, 0.3);
}

.honor-item.active .iconfont {
  background: linear-gradient(
    90deg,
    rgba(35, 167, 253, 1) 0%,
    rgba(253, 26, 226, 1) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.honor-item.active h3 {
  color: #333;
  font-weight: 600;
}

.honor-item h3 {
  font-size: 1.6rem;
  color: #a2a3a5;
  font-weight: normal;
  margin-left: 1.2rem;
}

.honor-item .iconfont {
  font-size: 1.6rem;
  color: #a2a3a5;
}

.honors-certificate {
  text-align: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.honors-certificate img {
  max-width: 100%;
  height: auto;
  transition: all 0.5s ease;
  opacity: 1;
}

.honors-certificate img.fade-out {
  opacity: 0;
  transform: scale(0.95);
}

.honors-certificate img.fade-in {
  opacity: 1;
  transform: scale(1);
}

/* 响应式设计 */
@media (max-width: 102.4rem) {
  .about-stats {
    gap: 4rem;
  }

  .culture-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .honors-content {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .honors-text {
    grid-template-columns: 1fr;
  }

  /* 荣誉资质移动端基础样式 */
  .honors-title {
    font-size: 3rem;
  }

  .honors-description {
    font-size: 1.5rem;
    text-align: center;
  }

  /* 移动端改为卡片布局 */
  .honors-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
  }

  .honors-text {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-height: none;
    overflow-y: visible;
  }

  /* 移动端显示图片 */
  .honor-item-image {
    display: block;
    width: 100%;
    overflow: hidden;
    border-radius: 0.8rem;
    margin-bottom: 1rem;
  }

  .honor-item-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: white;
      box-shadow: none;
  }

  .honor-item {
    border: 0.1rem solid rgba(102, 126, 234, 0.2);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: white;
    box-shadow: 0 0.2rem 0.8rem rgba(102, 126, 234, 0.1);
  }

  .honor-item.active {
     border: 0.1rem solid rgba(102, 126, 234, 0.2)
  }

    .honor-item:hover{
        background: white;
    }
  .honor-item h3 {
    font-size: 1.5rem;
    margin-left: 0;
    margin-top: 0;
  }

  .honor-item .iconfont {
    display: none;
  }

  .honors-certificate {
    display: none;
  }

  .carousel-nav {
    width: 4.5rem;
    height: 4.5rem;
  }

  .carousel-prev {
    left: -2.2rem;
  }

  .carousel-next {
    right: -2.2rem;
  }
}

@media (max-width: 76.8rem) {
  .about-title {
    font-size: 2.4rem;
    margin-bottom: 2rem;
  }

  .about-description {
    font-size: 1.8rem;
  }
  .about-description p {
    margin-bottom: 1rem;
  }

  .about-stats {
    flex-direction: column;
    gap: 3rem;
  }

  .stat-number {
    font-size: 3.6rem;
    margin-right: 0.4rem;
    font-weight: bold;
  }

  .section-title {
    font-size: 2rem;
  }

  /* 文化板块移动端样式 */
  .culture-item {
    height: 25rem;
  }

  /* 时间线移动端样式 */
  .timeline-item {
    flex: 0 0 100%;
    /* 移动端每次显示1个 */
    padding: 1rem;
    box-sizing: border-box;
  }

  .timeline-content {
    min-height: auto;
    height: auto;
    padding: 2rem;
  }

  .timeline-content h3 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
  }

  .timeline-content p {
    font-size: 2.4rem;
    height: auto;
    margin-bottom: 2rem;
  }

  .timeline-details li {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
  }

  /* 轮播导航按钮 */
  .carousel-nav {
    width: 4rem;
    height: 4rem;
  }

  .carousel-prev {
    left: -2rem;
  }

  .carousel-next {
    right: -2rem;
  }

  /* 指示器样式 */
  .timeline-indicators {
    margin-top: 3rem;
  }

  .timeline-indicators .indicator {
    width: 1rem;
    height: 1rem;
  }

  /* 荣誉资质小屏幕样式 */
  .honors-qualifications {
    padding: 4rem 0 10rem;
  }

  .honors-title {
    font-size: 2.4rem;
  }

  .honors-description {
    font-size: 1.4rem;
    padding: 0 1.5rem;
  }

  .honor-item {
    padding: 1.2rem 1rem;
  }

  .honor-item h3 {
    font-size: 1.4rem;
    margin-left: 1rem;
  }

  .honor-item .iconfont {
    font-size: 1.4rem;
  }

  .honors-certificate img {
    max-width: 95%;
  }
}

/* 移动端小屏幕特殊样式 */
@media (max-width: 48rem) {
  .about-hero-content {
    padding: 0 2rem;
    width: 100%;
  }

  .about-title {
    font-size: 4rem;
  }

  .section-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 2rem;
  }

  .timeline-year {
    width: 5rem;
    height: 5rem;
    font-size: 0.8rem;
  }

  .timeline-content {
    padding: 2rem;
    min-height: 42rem;
  }

  .timeline-content h3 {
    font-size: 3rem;
    margin-bottom: 1rem;
  }

  .timeline-details li {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
  }

  .carousel-nav {
    width: 3.5rem;
    height: 3.5rem;
  }

  .carousel-prev {
    left: -1.7rem;
  }

  .carousel-next {
    right: -1.7rem;
  }
  .company-culture {
    padding: 4rem 0;
  }
  .culture-overlay h3 {
    font-size: 2.4rem;
    margin-bottom: 0;
  }
  .culture-overlay p {
    font-size: 1.8rem;
  }
  .development-history {
    padding: 4rem 0;
  }
  .timeline-details li:before {
    top: -0.2rem;
  }

  /* 荣誉资质小屏幕特殊样式 */
  .honors-qualifications {
    padding: 3rem 0 8rem;
  }

  .honors-title {
    font-size: 3rem;
      text-align: center;
      font-weight: bold;
      margin-bottom: 2rem;
  }

  .honors-description {
    font-size: 1.8rem;
    text-align: center;
  }

  /* 小屏幕移动端改为2列卡片布局 */
  .honors-text {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .honor-item {
    padding: 1.5rem;
  }

  .honor-item h3 {
    font-size: 1.8rem;
    margin-top: 0.8rem;
      color: #333333;
      font-weight: bold;
  }

  .honor-item .iconfont {
    font-size: 1.8rem;
  }

  .honors-certificate {
    display: none;
  }
}

@media screen and (min-width: 768px) and (max-width: 1199px) {
  .culture-grid{
    grid-template-columns: repeat(2, 1fr);
  }
}