/* ===== 关于页面样式 ===== */

/* 企业简介轮播图 */
.intro-row {
  display: flex !important;
  align-items: stretch !important;
}

.intro-row > div[class*="col-"] {
  display: flex !important;
  flex-direction: column !important;
}

.intro-row #introCarousel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 16px;
  position: relative; /* 确保按钮定位基准不漂移 */
  min-height: 300px;  /* 防止切换时高度闪动 */
}

.intro-row .carousel-inner {
  flex: 1 !important;
  height: 100% !important;
}

.intro-row .carousel-item {
  height: 100% !important;
}

.carousel-slide-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.carousel-slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}

.carousel-slide-text {
  position: relative;
  z-index: 2;
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 8px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.carousel-control-prev,
.carousel-control-next {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(5px);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  margin: 0 12px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.carousel:hover .carousel-control-prev,
.carousel:hover .carousel-control-next {
  opacity: 1;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
  background: rgba(255, 255, 255, 0.4);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  width: 18px;
  height: 18px;
}

.carousel-indicators {
  bottom: -35px;
}

.carousel-indicators button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  border: none;
  margin: 0 6px;
  transition: all 0.3s ease;
}

.carousel-indicators button.active {
  width: 28px;
  border-radius: 5px;
  background: linear-gradient(90deg, #005fac, #007bff);
}

/* 顶部横幅 */
.about-banner {
  position: relative;
  width: 100%;
  margin-top: 80px;
  overflow: hidden;
}

.about-banner img {
  display: block;
  object-fit: cover;
}

.about-banner-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}

.about-banner-content h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

/* 导航标签 */
.about-nav {
  background: white;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 80px;
  z-index: 100;
}

.about-nav-tabs {
  display: flex;
  justify-content: center;
  padding: 0;
  margin: 0;
  list-style: none;
  gap: 2rem;
}

.about-nav-tabs li {
  padding: 1rem 0;
}

.about-nav-tabs li a {
  text-decoration: none;
  color: #666;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-bottom: 3px solid transparent;
  transition: all 0.3s;
}

.about-nav-tabs li a.active,
.about-nav-tabs li a:hover {
  color: #005fac;
  border-bottom-color: #005fac;
}

.about-content {
  padding: 0;
}

.about-section {
  display: block;
  width: 100%;
}

/* 全宽模块样式 */
.about-section-full {
  padding: 40px 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.about-section-full:nth-child(odd) {
  background: #fff;
}

.about-section-full:nth-child(even) {
  background: #f8f9fa;
}

.about-section-full .container-lg {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

.section-title {
  color: #005fac;
  font-size: 4rem;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
 
  background-clip: text;
}

/* ===== 企业文化样式 ===== */
.culture-mission,
.culture-vision {
 
  background: #f8f9fa;
  width: 100%;
}

.culture-values {
  padding: 80px 20px;
  background: #fff;
  width: 100%;
}

.culture-label {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(0, 95, 172, 0.1);
  color: #005fac;
  font-size: 14px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.culture-title {
  font-size: 2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 30px;
  line-height: 1.4;
}

.culture-mission-content,
.culture-vision-content {
  max-width: 1200px;
 
  margin: 0px;
  padding: 50px;
}

.culture-desc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
}

.culture-desc-item h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #005fac;
  margin-bottom: 15px;
  padding-bottom: 12px;
  border-bottom: 2px solid #005fac;
  display: inline-block;
}

.culture-desc-item p {
  font-size: 1rem;
  color: #666;
  line-height: 1.8;
}

.culture-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);  /* 3列布局 */
  gap: 35px;
  margin-top: 50px;
  margin-bottom: 50px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.culture-value-card {
  text-align: center;
  padding: 30px 20px;
  border-radius: 12px;
  background: #f8f9fa;
  transition: all 0.3s;
}

.culture-value-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 95, 172, 0.15);
}

.culture-value-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #005fac, #007bff);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: #fff;
  font-size: 1.8rem;
}

.culture-value-card h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 12px;
}

.culture-value-card p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.7;
}

.culture-vision-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.vision-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.vision-keyword {
  flex-shrink: 0;
  padding: 6px 16px;
  background: #005fac;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 20px;
  min-width: 80px;
  text-align: center;
}

.vision-detail-item p {
  font-size: 1rem;
  color: #666;
  line-height: 1.8;
  margin: 0;
}

/* ===== 图片占位符样式 ===== */
.culture-image-placeholder {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
}

.culture-mission-image {
  height: 300px;
  background: linear-gradient(135deg, #005fac 0%, #007bff 50%, #00b4d8 100%);
}

.culture-mission-image::after {
  content: '企业使命图片';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 2px;
}

.culture-vision-image {
  height: 300px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.culture-vision-image::after {
  content: '企业愿景图片';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 2px;
}

.culture-value-image-placeholder {
  width: 100%;
  height: 160px;
  border-radius: 8px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s;
}

.culture-value-card:hover .culture-value-image-placeholder {
  transform: scale(1.05);
}

.culture-value-image-placeholder::after {
  content: '替换图片';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 1px;
}

/* ===== 品牌故事样式 ===== */
.brand-story-header {
  text-align: center;
 
}

/* .brand-story-image-placeholder {
  width: 100%;
  max-width: 900px;
  height: 400px;
  margin: 0 auto 30px;
  border-radius: 16px;
  background: linear-gradient(135deg, #005fac 0%, #007bff 30%, #00b4d8 60%, #48dbfb 100%);
  position: relative;
  overflow: hidden;
} */

.brand-story-image-placeholder::after {
  content: '品牌故事封面图';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: 2px;
}

.brand-story-header-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.brand-story-label {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(0, 95, 172, 0.1);
  color: #005fac;
  font-size: 14px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.brand-story-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
}

.brand-story-subtitle {
  font-size: 1.1rem;
  color: #666;
}

/* 发展历程时间线 - 新版：中轴对称 + 交替卡片 */
.brand-timeline {
  padding: 40px 0;
  background: #f8f9fa;
}

.brand-timeline-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.scrollable-timeline {
  position: relative;
  padding: 100px 0 90px;
}

.timeline-scroll-track {
  position: relative;
  overflow: hidden;
}

.timeline-track-inner {
  position: relative;
  display: flex;
  gap: 0;
  z-index: 1;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-node {
  flex: 0 0 calc(100% / 3);
  position: relative;
  min-height: 520px;
  padding: 0 16px;
  cursor: pointer;
}

/* 卡片与节点之间的竖直连线 */
.timeline-node::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 24px;
  background: #cbd5e1;
  transform: translateX(-50%) translateY(-100%);
  z-index: 1;
  transition: background 0.4s ease;
}

.timeline-node:nth-child(even)::before {
  transform: translateX(-50%);
}

/* 年份节点圆点 - 始终居中在时间轴上 */
.node-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 18px;
  background: #fff;
  border: 4px solid #cbd5e1;
  border-radius: 50%;
  z-index: 3;
  transition: all 0.4s ease;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.9);
}

/* 卡片 - 奇数在轴上方，偶数在轴下方 */
.node-card {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: calc(50% + 24px);
  background: #fff;
  border-radius: 16px;
  padding: 22px 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  text-align: center;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.timeline-node:nth-child(even) .node-card {
  bottom: auto;
  top: calc(50% + 24px);
}

.node-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin: 0 auto 12px;
  border: 3px solid #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.node-year {
  font-size: 1.8rem;
  font-weight: 800;
  color: #94a3b8;
  margin-bottom: 4px;
  transition: color 0.4s ease;
}

.node-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 8px;
}

.node-desc {
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.55;
  margin: 0;
}

/* 灰色背景线 - 固定在可见区域 */
.timeline-line-bg {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  background: #e2e8f0;
  border-radius: 2px;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 0;
}

/* 蓝色进度线 - 在滚动容器内随节点移动，宽度 = 到当前节点圆点中心 */
.timeline-line-progress {
  position: absolute;
  top: 50%;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #005fac, #007bff);
  border-radius: 2px;
  transform: translateY(-50%);
  width: 0;
  pointer-events: none;
  z-index: 0;
}

/* 节点状态：已走过 / 当前 / 未到达 */
.timeline-node.passed .node-dot,
.timeline-node.active .node-dot {
  background: #005fac;
  border-color: #005fac;
  
}
.timeline-node.active .node-dot {
  transform: translate(-50%, -50%) scale(1.45);
  box-shadow: 0 0 0 8px rgba(0, 95, 172, 0.12), 0 0 24px rgba(0, 95, 172, 0.35);
}

.timeline-node.passed::before,
.timeline-node.active::before {
  background: #005fac;
}

.timeline-node.passed .node-year,
.timeline-node.active .node-year {
  background: linear-gradient(135deg, #005fac, #007bff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.timeline-node.active .node-card {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 20px 50px rgba(0, 95, 172, 0.15);
  border-color: rgba(0, 95, 172, 0.2);
}

.timeline-node:nth-child(even).active .node-card {
  transform: translateY(8px) scale(1.03);
}

.timeline-node.passed:not(.active) .node-card {
  opacity: 0.8;
}

.timeline-node:not(.active):not(.passed) .node-card {
  opacity: 0.5;
}

.timeline-controls {
  display: none;
}

.control-btn {
  width: 48px;
  height: 48px;
  border: none;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  transition: all 0.3s ease;
}

.control-btn:hover {
  background: #005fac;
  color: #fff;
  transform: scale(1.1);
}

.control-btn:active {
  transform: scale(0.95);
}

.progress-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
}

.progress-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: #005fac;
  min-width: 36px;
}

.progress-divider {
  font-size: 1.2rem;
  color: #999;
}

.progress-total {
  font-size: 1.2rem;
  color: #999;
}

/* 品牌宣传片 */
.brand-video-section {
  padding: 60px 0;
  background: #fff;
}

.brand-video-placeholder {
  width: 100%;
  max-width: 900px;
  height: 500px;
  margin: 0 auto 30px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2d3436, #636e72);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-video-placeholder::before {
  content: '';
  width: 80px;
  height: 80px;
  border: 4px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.brand-video-placeholder::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 20px 0 20px 35px;
  border-color: transparent transparent transparent rgba(255, 255, 255, 0.9);
  position: absolute;
  top: 50%;
  left: calc(50% + 8px);
  transform: translate(-50%, -50%);
}

.brand-video-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.brand-video-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 16px;
}

.brand-video-content p {
  font-size: 1rem;
  color: #666;
  line-height: 1.8;
}

/* Logo释义 */
.brand-logo-section {
  padding: 60px 0;
  background: #f8f9fa;
}

.brand-logo-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 30px;
  text-align: center;
}

.brand-logo-content {
  display: flex;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.brand-logo-image-placeholder {
  flex-shrink: 0;
  width: 300px;
  height: 300px;
  border-radius: 16px;
  background: linear-gradient(135deg, #005fac, #e74c3c);
  position: relative;
  overflow: hidden;
}

.brand-logo-image-placeholder::after {
  content: 'Logo图片';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 2px;
}

.brand-logo-desc {
  flex: 1;
}

.brand-logo-desc p {
  font-size: 1rem;
  color: #666;
  line-height: 1.8;
  margin-bottom: 16px;
}

.brand-logo-desc p:last-child {
  margin-bottom: 0;
}

/* 时间线基础样式 */
.timeline-item {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 2rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 12px;
  height: 12px;
  background: #005fac;
  border-radius: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1.25rem;
  width: 2px;
  height: calc(100% - 0.75rem);
  background: #eee;
}

.timeline-item:last-child::after {
  display: none;
}

/* 荣誉卡片 */
.honor-card {
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

.honor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border-color: var(--primary);
}

.honor-card.active {
  transform: scale(0.98);
}

/* 合作伙伴Logo */
.partner-logo {
  height: 80px;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter 0.3s;
}

.partner-logo:hover {
  filter: grayscale(0%);
}

/* ===== 故事线样式 - 全新设计 ===== */
.story-section {
  position: relative;
  padding: 0;
  overflow: hidden;
  width: 100%;
  max-width: none;
}

.story-container {
  position: relative;
  width: 100vw;
  min-height: 300px;
  background: url('assets/images/gushixian.jpg') center center/cover no-repeat;
  margin-left: calc(-50vw + 50%);
}

.story-header {
  padding: 1.5rem 0;
  text-align: center;
}

.story-content {
  position: relative;
  padding: 1rem 0 2rem;
  min-height: 300px;
}

.story-svg-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  pointer-events: none;
}

.story-svg-container svg {
  width: 100%;
  height: 100%;
}

.story-track {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 0;
  position: relative;
  z-index: 2;
  height: 300px;
  width: 100%;
}

.story-item {
  flex: 0 0 auto;
  text-align: center;
  opacity: 0.4;
  transition: all 0.5s ease;
  position: relative;
  width: 100px;
}

/* 奇数项在上，偶数项在下 */
.story-item:nth-child(odd) {
  margin-top: 45px;
}

.story-item:nth-child(even) {
  margin-top: 185px;
}

/* 当前激活的节点 */
.story-item.active {
  opacity: 1;
  transform: scale(1.1);
}

/* 已经经过的节点保持高亮 */
.story-item.passed {
  opacity: 1;
}

.story-year {
  font-size: 1.3rem;
  font-weight: bold;
  color: #999;
  margin-bottom: 0.5rem;
  transition: all 0.5s ease;
}

.story-item.active .story-year,
.story-item.passed .story-year {
  color: #007bff;
}

.story-item.active .story-year {
  font-size: 1.6rem;
}

.story-item.passed .story-year {
  font-size: 1.4rem;
}

.story-dots {
  text-align: left;
  background: rgba(255, 255, 255, 0.98);
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  display: none;
  position: absolute;
 
  min-width: 220px;
  max-width: 280px;
  border: 1px solid #e0e0e0;
}

/* 奇数项的内容显示在下方 */
.story-item:nth-child(odd) .story-dots {
  top: calc(100% + 30px);
  left: 50%;
  transform: translateX(-50%);
}

/* 偶数项的内容显示在上方 */
.story-item:nth-child(even) .story-dots {
  bottom: calc(100% + 30px);
  left: 50%;
  transform: translateX(-50%);
}

/* 当前激活和已经经过的节点显示内容 */
.story-item.active .story-dots,
.story-item.passed .story-dots {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.story-dots p {
  font-size: 0.85rem;
  color: #555;
  margin: 0.25rem 0;
  line-height: 1.6;
  padding-left: 0.75rem;
  position: relative;
}

.story-dots p::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 4px;
  height: 4px;
  background: #005fac;
  border-radius: 50%;
}

.story-dot-wrapper {
  position: relative;
  width: 28px;
  height: 28px;
  margin: 0 auto;
}

.story-dot {
  width: 16px;
  height: 16px;
  background: #ccc;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 3px solid white;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  transition: all 0.5s ease;
}

.story-item.active .story-dot {
  background: #007bff;
  transform: translate(-50%, -50%) scale(1.4);
  box-shadow: 0 0 20px rgba(0, 123, 255, 0.6);
}

/* 已经过的节点圆点保持高亮 */
.story-item.passed .story-dot {
  background: #007bff;
  box-shadow: 0 0 15px rgba(0, 123, 255, 0.4);
}

/* 未激活且未经过时的虚线框 */
.story-item:not(.active):not(.passed) .story-dot-wrapper::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  border: 2px dashed #ccc;
  border-radius: 50%;
}

/* SVG路径样式 */
.story-path {
  fill: none;
  stroke: #ddd;
  stroke-width: 3;
  stroke-dasharray: 10, 5;
}

.story-path-active {
  fill: none;
  stroke: #ff6b35;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(255, 107, 53, 0.5));
  transition: stroke-dashoffset 2.5s ease-in-out;
}

.story-arrow-head {
  fill: #ff6b35;
  transition: transform 2.5s ease-in-out;
}

.story-future-rays {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.story-future-rays.show {
  opacity: 1;
}

/* ===== 响应式设计 ===== */

/* 企业文化响应式 */
@media (max-width: 992px) {
  .culture-values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .brand-logo-content {
    flex-direction: column;
  }
  
  .brand-logo-image-placeholder {
    width: 100%;
    height: 250px;
  }
  
  .timeline-node {
    flex: 0 0 50%;
    min-height: 460px;
    padding: 0 12px;
  }
  
  .node-card {
    left: 12px;
    right: 12px;
    padding: 18px 14px;
  }
  
  .node-icon {
    width: 44px;
    height: 44px;
  }
  
  .node-year {
    font-size: 1.5rem;
  }
  
  .node-title {
    font-size: 1rem;
  }
  
  .node-desc {
    font-size: 0.8rem;
  }
  
  .control-btn {
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 768px) {
  .scrollable-timeline {
    padding: 60px 0 70px;
  }
  
  .timeline-node {
    flex: 0 0 100%;
    min-height: 420px;
    padding: 0 30px;
  }
  
  .node-card {
    left: 30px;
    right: 30px;
    padding: 20px;
  }
  
  .node-icon {
    width: 44px;
    height: 44px;
  }
  
  .node-year {
    font-size: 1.5rem;
  }
  
  .node-title {
    font-size: 1rem;
  }
  
  .node-desc {
    font-size: 0.85rem;
  }
  
  .control-btn {
    width: 42px;
    height: 42px;
  }
  
  .progress-text {
    font-size: 1.3rem;
  }
  
  .culture-title {
    font-size: 1.5rem;
  }
  
  .culture-desc-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .culture-values-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .vision-detail-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .brand-story-title {
    font-size: 1.6rem;
  }
  
  .brand-story-image-placeholder {
    height: 250px;
  }
  
  .brand-video-placeholder {
    height: 300px;
  }
  
  .brand-video-content h3 {
    font-size: 1.4rem;
  }
}

/* 故事线响应式 */
@media (max-width: 992px) {
  .story-container {
    min-height: 280px;
  }
  
  .story-track {
    height: 280px;
    padding: 0 10px;
  }
  
  .story-item {
    width: 80px;
  }
  
  .story-item:nth-child(odd) {
    margin-top: 40px;
  }
  
  .story-item:nth-child(even) {
    margin-top: 170px;
  }
  
  .story-year {
    font-size: 1.1rem;
  }
  
  .story-item.active .story-year {
    font-size: 1.3rem;
  }
  
  .story-item.passed .story-year {
    font-size: 1.2rem;
  }
  
  .story-dots {
    padding: 0.8rem;
    font-size: 0.9rem;
  }
  
  .story-dot-wrapper {
    width: 28px;
    height: 28px;
  }
  
  .story-dot {
    width: 14px;
    height: 14px;
  }
  
  .story-item.active .story-dot {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 768px) {
  .about-banner-content h1 {
    font-size: 1.5rem;
  }
  
  .about-nav-tabs {
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
    padding: 0 1rem;
  }
  
  /* 故事线平板样式 */
  .story-container {
    min-height: 260px;
  }
  
  .story-track {
    height: 260px;
    padding: 0 8px;
  }
  
  .story-item {
    width: 70px;
  }
  
  .story-item:nth-child(odd) {
    margin-top: 35px;
  }
  
  .story-item:nth-child(even) {
    margin-top: 160px;
  }
  
  .story-year {
    font-size: 1rem;
    margin-bottom: 0.3rem;
  }
  
  .story-item.active .story-year {
    font-size: 1.2rem;
  }
  
  .story-item.passed .story-year {
    font-size: 1.1rem;
  }
  
  .story-dots {
    padding: 0.6rem;
    font-size: 0.85rem;
  }
  
  .story-dot-wrapper {
    width: 24px;
    height: 24px;
  }
  
  .story-dot {
    width: 12px;
    height: 12px;
  }
  
  .story-item.active .story-dot {
    width: 16px;
    height: 16px;
  }
  
  .story-header {
    padding: 1rem 0;
  }
  
  .story-header h2 {
    font-size: 1.4rem;
  }
}

@media (max-width: 576px) {
  /* 品牌故事时间线手机版：单卡片展示，适度 peek 下一张 */
  .scrollable-timeline {
    padding: 40px 0 60px;
  }
  
  .timeline-node {
    flex: 0 0 88%;
    min-height: 380px;
    padding: 0 10px;
  }
  
  .node-card {
    left: 10px;
    right: 10px;
    padding: 18px 14px;
  }
  
  .node-year {
    font-size: 1.4rem;
  }
  
  .node-title {
    font-size: 0.95rem;
  }
  
  .node-desc {
    font-size: 0.8rem;
  }
  
  .timeline-controls {
    margin-top: 30px;
    gap: 16px;
  }
  
  /* 故事线手机样式 - 竖向排列 */
  .story-container {
    min-height: 380px;
  }
  
  .story-track {
    flex-direction: column;
    height: auto;
    min-height: 360px;
    align-items: center;
    gap: 20px;
    padding: 20px 15px;
  }
  
  .story-item {
    width: 100%;
    max-width: 280px;
    margin-top: 0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  /* 隐藏SVG路径在小屏幕上 */
  .story-svg-container {
    display: none;
  }
  
  /* 手机版简单时间线 */
  .story-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: -30px;
    width: 2px;
    background: linear-gradient(to bottom, #007bff, #ddd);
    transform: translateX(-50%);
  }
  
  .story-item:last-child::before {
    display: none;
  }
  
  .story-year {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }
  
  .story-item.active .story-year {
    font-size: 1.4rem;
  }
  
  .story-item.passed .story-year {
    font-size: 1.3rem;
  }
  
  .story-dots {
    display: block !important;
    padding: 0.8rem;
    font-size: 0.9rem;
    max-width: 260px;
    margin-top: 0.5rem;
  }
  
  .story-dot-wrapper {
    width: 32px;
    height: 32px;
    z-index: 3;
    position: relative;
  }
  
  .story-dot {
    width: 16px;
    height: 16px;
  }
  
  .story-item.active .story-dot {
    width: 22px;
    height: 22px;
  }
  
  .story-header {
    padding: 0.8rem 0;
  }
  
  .story-header h2 {
    font-size: 1.3rem;
  }
  
  /* 关于页面其他元素手机版 */
  .about-banner-content h1 {
    font-size: 1.3rem;
  }
  
  .about-nav-tabs {
    gap: 0.5rem;
    padding: 0 0.5rem;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  
  .about-nav-tabs li a {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
    white-space: nowrap;
  }
  

  
  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 400px) {
  .story-container {
    min-height: 360px;
  }
  
  .story-track {
    min-height: 340px;
    gap: 15px;
  }
  
  .story-dots {
    padding: 0.6rem;
    font-size: 0.85rem;
  }
  
  .about-nav-tabs li a {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
  }
}