/* ==========================================
   关于页面专用样式 - 科技感设计
   ========================================== */

/* 基础布局样式 */
.layout_padding {
  padding: 90px 0;
}

.layout_padding2 {
  padding: 75px 0;
}

.layout_padding2-top {
  padding-top: 75px;
}

.layout_padding2-bottom {
  padding-bottom: 75px;
}

.layout_padding-top {
  padding-top: 90px;
}

.layout_padding-bottom {
  padding-bottom: 90px;
}

/* 科技感英雄区域 */
.about_hero_section {
  position: relative;
  min-height: 350px;
  background: linear-gradient(135deg, #0a1628 0%, #00204a 50%, #001835 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about_hero_bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero_particles {
  position: absolute;
  width: 100%;
  height: 100%;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: floatParticle 20s infinite ease-in-out;
}

.particle-1 {
  width: 6px;
  height: 6px;
  background: rgba(0, 187, 240, 0.6);
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.particle-2 {
  width: 4px;
  height: 4px;
  background: rgba(0, 187, 240, 0.4);
  top: 60%;
  left: 80%;
  animation-delay: -5s;
}

.particle-3 {
  width: 8px;
  height: 8px;
  background: rgba(0, 187, 240, 0.3);
  top: 80%;
  left: 30%;
  animation-delay: -10s;
}

.particle-4 {
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.4);
  top: 40%;
  left: 60%;
  animation-delay: -15s;
}

.particle-5 {
  width: 3px;
  height: 3px;
  background: rgba(0, 187, 240, 0.5);
  top: 70%;
  left: 50%;
  animation-delay: -7s;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: glowPulse 4s infinite ease-in-out;
}

.glow-1 {
  width: 300px;
  height: 300px;
  background: rgba(0, 187, 240, 0.15);
  top: -100px;
  right: -50px;
}

.glow-2 {
  width: 200px;
  height: 200px;
  background: rgba(0, 187, 240, 0.1);
  bottom: -50px;
  left: 10%;
  animation-delay: -2s;
}

@keyframes floatParticle {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.6;
  }
  25% {
    transform: translate(30px, -30px) scale(1.2);
    opacity: 1;
  }
  50% {
    transform: translate(-20px, 20px) scale(0.8);
    opacity: 0.4;
  }
  75% {
    transform: translate(10px, 40px) scale(1.1);
    opacity: 0.8;
  }
}

@keyframes glowPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
  }
}

.about_hero_content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 60px 20px;
}

.hero_tag {
  display: inline-block;
  padding: 8px 25px;
  background: rgba(0, 187, 240, 0.1);
  border: 1px solid rgba(0, 187, 240, 0.3);
  border-radius: 25px;
  color: #00bbf0;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 3px;
  margin-bottom: 25px;
}

.hero_title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.2;
}

.hero_title .title_main {
  color: #ffffff;
}

.hero_title .title_highlight {
  background: linear-gradient(90deg, #00bbf0, #ffffff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero_subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 2px;
  margin-bottom: 25px;
}

.hero_line {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, #00bbf0, transparent);
  margin: 0 auto;
  border-radius: 2px;
}

/* 关于介绍区域 */
.about_intro_section {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
  position: relative;
}

.intro_content_wrapper {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}

.intro_visual {
  flex: 0 0 400px;
  position: relative;
}

.visual_frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, #00204a, #001835);
  box-shadow: 0 20px 50px rgba(0, 32, 74, 0.2);
}

.visual_frame img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.visual_frame:hover img {
  transform: scale(1.05);
}

.visual_placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  padding: 40px;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.visual_placeholder:hover {
  color: rgba(0, 187, 240, 0.8);
  background: rgba(0, 187, 240, 0.05);
}

.visual_placeholder i {
  font-size: 48px;
  margin-bottom: 15px;
}

.visual_placeholder span {
  font-size: 1rem;
}

.visual_decoration {
  position: absolute;
  border-radius: 15px;
  z-index: -1;
}

.visual_dec_1 {
  width: 100%;
  height: 100%;
  top: 20px;
  left: 20px;
  border: 3px solid rgba(0, 187, 240, 0.2);
}

.visual_dec_2 {
  width: 60%;
  height: 60%;
  bottom: -20px;
  right: -20px;
  background: linear-gradient(135deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
}

.visual_stats_mini {
  display: flex;
  gap: 15px;
  margin-top: 25px;
}

.mini_stat {
  flex: 1;
  background: #ffffff;
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 187, 240, 0.1);
  transition: all 0.3s ease;
}

.mini_stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 187, 240, 0.1);
  border-color: rgba(0, 187, 240, 0.3);
}

.mini_stat_number {
  font-size: 2rem;
  font-weight: 700;
  color: #00bbf0;
  line-height: 1;
  margin-bottom: 5px;
}

.mini_stat_label {
  font-size: 0.85rem;
  color: #666;
}

/* 介绍文本区域 */
.intro_text {
  flex: 1;
}

.intro_header {
  margin-bottom: 30px;
}

.intro_tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 15px;
  background: linear-gradient(90deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
  border-radius: 20px;
  color: #00bbf0;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.intro_tagline i {
  font-size: 12px;
}

.intro_title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #00204a;
  margin-bottom: 10px;
  background: linear-gradient(90deg, #00204a, #00bbf0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.intro_location {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #666;
  font-size: 0.95rem;
}

.intro_location i {
  color: #00bbf0;
}

.intro_body {
  margin-bottom: 30px;
}

.intro_para {
  font-size: 1rem;
  line-height: 1.9;
  color: #555;
  margin-bottom: 20px;
}

.intro_para_primary {
  font-size: 1.05rem;
  color: #333;
  position: relative;
  padding-left: 20px;
}

.intro_para_primary::before {
  content: '';
  position: absolute;
  left: 0;
  top: 5px;
  bottom: 5px;
  width: 4px;
  background: linear-gradient(180deg, #00bbf0, #00204a);
  border-radius: 2px;
}

.intro_highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.highlight_item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 20px;
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid rgba(0, 187, 240, 0.1);
  transition: all 0.3s ease;
}

.highlight_item:hover {
  border-color: rgba(0, 187, 240, 0.3);
  box-shadow: 0 10px 30px rgba(0, 187, 240, 0.1);
  transform: translateX(5px);
}

.highlight_icon {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
  border-radius: 12px;
  color: #00bbf0;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.highlight_item:hover .highlight_icon {
  background: linear-gradient(135deg, #00bbf0, #007fa4);
  color: #ffffff;
  transform: rotate(10deg);
}

.highlight_text {
  font-weight: 600;
  color: #00204a;
  font-size: 0.95rem;
}

/* 数据统计区域 - 科技感设计 */
.about_stats_section {
  background: linear-gradient(135deg, #00204a 0%, #001835 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.stats_bg_pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,187,240,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(#grid)"/></svg>');
  background-size: 100px 100px;
}

.stats_wrapper {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.stats_item {
  flex: 1;
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  padding: 30px 20px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  transition: all 0.4s ease;
}

.stats_item:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 187, 240, 0.3);
  box-shadow: 0 20px 50px rgba(0, 187, 240, 0.15);
}

.stats_item_featured {
  border-color: rgba(255, 165, 0, 0.3);
  background: rgba(255, 165, 0, 0.05);
}

.stats_item_featured:hover {
  border-color: rgba(255, 165, 0, 0.5);
  background: rgba(255, 165, 0, 0.1);
  box-shadow: 0 20px 50px rgba(255, 165, 0, 0.15);
}

.stats_icon_box {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background: rgba(0, 187, 240, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
}

.stats_item:hover .stats_icon_box {
  transform: scale(1.1) rotate(10deg);
  background: rgba(0, 187, 240, 0.25);
}

.stats_item_featured .stats_icon_box {
  background: rgba(255, 165, 0, 0.15);
}

.stats_item_featured:hover .stats_icon_box {
  background: rgba(255, 165, 0, 0.25);
}

.stats_icon_box i {
  font-size: 24px;
  color: #00bbf0;
}

.stats_item_featured .stats_icon_box i {
  color: #ffc107;
}

.stats_content {
  margin-bottom: 15px;
}

.stats_number {
  font-size: 3rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 10px;
}

.stats_number .plus {
  font-size: 1.8rem;
  color: #00bbf0;
}

.stats_item_featured .stats_number .plus {
  color: #ffc107;
}

.stats_label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.stats_badge {
  position: absolute;
  top: -10px;
  right: 20px;
  padding: 6px 15px;
  background: linear-gradient(90deg, #ffc107, #ff9800);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(255, 193, 7, 0.3);
}

.stats_bar {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  border-radius: 2px;
  transition: width 0.6s ease;
}

.stats_item:hover .stats_bar {
  width: 60%;
}

.stats_item_featured .stats_bar {
  background: linear-gradient(90deg, #ffc107, #ff9800);
}

/* 现代区块标题 */
.section_header_modern {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section_header_modern .header_decoration {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(0, 187, 240, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.section_header_modern .header_tag {
  display: inline-block;
  padding: 8px 25px;
  background: linear-gradient(90deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
  color: #00bbf0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  border-radius: 25px;
  margin-bottom: 15px;
  position: relative;
}

.section_header_modern .header_title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #00204a;
  margin-bottom: 10px;
}

.section_header_modern .title_accent {
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section_header_modern .header_desc {
  font-size: 1rem;
  color: #666;
  letter-spacing: 1px;
}

.section_header_light .header_title {
  color: #ffffff;
}

.section_header_light .header_desc {
  color: rgba(255, 255, 255, 0.7);
}

/* 知识产权流动展示区域 */
.patent_flow_section {
  background: linear-gradient(180deg, #f0f4f8 0%, #ffffff 50%, #f8f9fa 100%);
  position: relative;
  overflow: hidden;
}

.patent_flow_section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 187, 240, 0.3), transparent);
}

/* 专利流动展示 */
.patent_flow_wrapper {
  position: relative;
  overflow: hidden;
  padding: 30px 0;
  margin: 0 -20px;
}

.patent_flow_wrapper::before,
.patent_flow_wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 150px;
  z-index: 10;
  pointer-events: none;
}

.patent_flow_wrapper::before {
  left: 0;
  background: linear-gradient(90deg, #f0f4f8, transparent);
}

.patent_flow_wrapper::after {
  right: 0;
  background: linear-gradient(-90deg, #f8f9fa, transparent);
}

.patent_flow_track {
  display: flex;
  gap: 25px;
  animation: patentFlowSmooth 60s linear infinite;
}

@keyframes patentFlowSmooth {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.patent_flow_wrapper:hover .patent_flow_track {
  animation-play-state: paused;
}

.patent_flow_item {
  flex-shrink: 0;
  width: 180px;
  height: 240px;
  background: #ffffff;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 187, 240, 0.1);
  transition: all 0.3s ease;
  position: relative;
}

.patent_flow_item:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 15px 40px rgba(0, 187, 240, 0.2);
  border-color: rgba(0, 187, 240, 0.3);
}

.patent_flow_item.patent_utility {
  border-color: rgba(255, 165, 0, 0.3);
}

.patent_flow_item.patent_utility:hover {
  box-shadow: 0 15px 40px rgba(255, 165, 0, 0.2);
  border-color: rgba(255, 165, 0, 0.5);
}

.patent_flow_img {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, #00204a, #001835);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.patent_flow_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.patent_flow_item:hover .patent_flow_img img {
  transform: scale(1.1);
}

.patent_flow_placeholder {
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s ease;
}

.patent_flow_item:hover .patent_flow_placeholder {
  color: rgba(0, 187, 240, 0.8);
}

.patent_flow_placeholder i {
  font-size: 36px;
  margin-bottom: 10px;
  display: block;
}

.patent_flow_placeholder span {
  font-size: 0.8rem;
}

.patent_flow_info {
  padding: 15px;
  text-align: center;
}

.patent_flow_type {
  display: inline-block;
  padding: 4px 10px;
  background: linear-gradient(90deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
  color: #00bbf0;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 10px;
  margin-bottom: 8px;
}

.patent_flow_item.patent_utility .patent_flow_type {
  background: linear-gradient(90deg, rgba(255, 165, 0, 0.1), rgba(255, 152, 0, 0.05));
  color: #ffc107;
}

.patent_flow_name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #00204a;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 专利图片卡片样式优化 */
.patent_image_item {
  width: 200px;
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
  border: 1px solid rgba(0, 187, 240, 0.15);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.patent_image_item:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 187, 240, 0.2);
  border-color: rgba(0, 187, 240, 0.4);
}

.patent_image_item .patent_flow_img {
  width: 100%;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  overflow: hidden;
  position: relative;
}

.patent_image_item .patent_flow_img::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 187, 240, 0.03), rgba(0, 32, 74, 0.03));
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.patent_image_item:hover .patent_flow_img::before {
  opacity: 1;
}

.patent_image_item .patent_flow_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.patent_image_item:hover .patent_flow_img img {
  transform: scale(1.08);
}

/* 核心技术区域 V2 */
.tech_section_v2 {
  background: linear-gradient(135deg, #0a1628 0%, #00204a 50%, #001835 100%);
  position: relative;
  overflow: hidden;
}

.tech_bg_elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.tech_circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 187, 240, 0.1);
}

.tech_circle_1 {
  width: 500px;
  height: 500px;
  top: -250px;
  right: -100px;
}

.tech_circle_2 {
  width: 300px;
  height: 300px;
  bottom: -150px;
  left: -50px;
}

.tech_line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 187, 240, 0.2), transparent);
}

.tech_line_1 {
  width: 50%;
  top: 30%;
  left: 0;
}

.tech_line_2 {
  width: 40%;
  bottom: 20%;
  right: 0;
}

.tech_grid_v2 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  position: relative;
  z-index: 1;
}

.tech_card_v2 {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 25px;
  padding: 35px 25px;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.tech_card_v2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.tech_card_v2:hover::before {
  transform: scaleX(1);
}

.tech_card_v2:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 187, 240, 0.3);
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0, 187, 240, 0.15);
}

.tech_card_icon {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech_card_icon .icon_ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid rgba(0, 187, 240, 0.3);
  border-radius: 50%;
  animation: ringPulse 2s infinite ease-out;
}

@keyframes ringPulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

.tech_card_icon i {
  font-size: 32px;
  color: #00bbf0;
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
}

.tech_card_v2:hover .tech_card_icon i {
  text-shadow: 0 0 20px rgba(0, 187, 240, 0.8);
  transform: scale(1.1);
}

.tech_card_title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  background: linear-gradient(90deg, #ffffff, #00bbf0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tech_card_desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  margin-bottom: 20px;
}

.tech_card_features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.feature_tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  background: rgba(0, 187, 240, 0.1);
  border-radius: 15px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
}

.feature_tag i {
  color: #00bbf0;
  font-size: 0.7rem;
}

.tech_card_v2:hover .feature_tag {
  background: rgba(0, 187, 240, 0.2);
}

/* 发展历程 - 简约时间线 V2 */
.history_section_v2 {
  background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
  position: relative;
}

.history_timeline_v2 {
  position: relative;
  padding: 40px 0;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline_track {
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, rgba(0, 187, 240, 0.2), rgba(0, 187, 240, 0.1));
  border-radius: 2px;
}

.timeline_progress_bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  border-radius: 2px;
  transition: width 1.5s ease;
}

.timeline_nodes {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.timeline_node {
  flex: 1;
  padding: 0 10px;
  opacity: 0;
  transform: translateY(30px);
  animation: nodeFadeIn 0.6s ease forwards;
}

.timeline_node:nth-child(1) { animation-delay: 0.1s; }
.timeline_node:nth-child(2) { animation-delay: 0.2s; }
.timeline_node:nth-child(3) { animation-delay: 0.3s; }
.timeline_node:nth-child(4) { animation-delay: 0.4s; }

@keyframes nodeFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.node_marker {
  text-align: center;
  margin-bottom: 25px;
  position: relative;
}

.marker_dot {
  width: 16px;
  height: 16px;
  background: #00bbf0;
  border: 3px solid #ffffff;
  border-radius: 50%;
  margin: 0 auto 15px;
  box-shadow: 0 0 20px rgba(0, 187, 240, 0.4);
  transition: all 0.3s ease;
  position: relative;
}

.marker_dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border: 2px solid rgba(0, 187, 240, 0.2);
  border-radius: 50%;
  animation: dotPulse 2s infinite ease-out;
}

@keyframes dotPulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

.timeline_node:hover .marker_dot {
  transform: scale(1.3);
  box-shadow: 0 0 30px rgba(0, 187, 240, 0.6);
}

.marker_year {
  display: inline-block;
  padding: 8px 20px;
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(0, 187, 240, 0.3);
  transition: all 0.3s ease;
}

.timeline_node:hover .marker_year {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 187, 240, 0.4);
}

.node_card {
  background: #ffffff;
  border-radius: 20px;
  padding: 25px 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 187, 240, 0.1);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.node_card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #00bbf0, #007fa4);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.timeline_node:hover .node_card::before {
  transform: scaleX(1);
}

.timeline_node:hover .node_card {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(0, 187, 240, 0.12);
  border-color: rgba(0, 187, 240, 0.3);
}

.node_icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 15px;
  background: linear-gradient(135deg, rgba(0, 187, 240, 0.1), rgba(0, 187, 240, 0.05));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(0, 187, 240, 0.2);
  transition: all 0.3s ease;
}

.timeline_node:hover .node_icon {
  background: linear-gradient(135deg, #00bbf0, #007fa4);
  border-color: transparent;
  transform: scale(1.1) rotate(10deg);
}

.node_icon i {
  font-size: 24px;
  color: #00bbf0;
  transition: color 0.3s ease;
}

.timeline_node:hover .node_icon i {
  color: #ffffff;
}

.node_title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #00204a;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.timeline_node:hover .node_title {
  color: #00bbf0;
}

.node_content {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.6;
  margin: 0;
}

/* 数字滚动动画 */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stats_number .count {
  display: inline-block;
  animation: countUp 0.6s ease forwards;
}

/* 卡片进入动画 */
@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.patent_showcase_card,
.tech_card_v2,
.software_showcase_group {
  animation: cardSlideIn 0.8s ease forwards;
}

.software_showcase_group {
  animation-delay: 0.2s;
}

/* 关于页面响应式设计 */
@media (max-width: 1200px) {
  .tech_grid_v2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero_title {
    font-size: 3rem;
  }
  
  .patent_image_item {
    width: 180px;
  }
  
  .patent_image_item .patent_flow_img {
    height: 250px;
  }
}

@media (max-width: 992px) {
  .intro_content_wrapper {
    flex-direction: column;
    gap: 40px;
  }
  
  .intro_visual {
    flex: none;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .stats_wrapper {
    gap: 20px;
  }
  
  .stats_item {
    min-width: 150px;
  }
  
  .timeline_nodes {
    flex-direction: column;
    gap: 30px;
  }
  
  .timeline_track {
    display: none;
  }
  
  .hero_title {
    font-size: 2.5rem;
  }
  
  .section_header_modern .header_title {
    font-size: 2rem;
  }
  
  .patent_image_item {
    width: 160px;
  }
  
  .patent_image_item .patent_flow_img {
    height: 220px;
  }
  
  .patent_flow_track {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .about_hero_section {
    min-height: 280px;
  }
  
  .about_hero_content {
    padding: 40px 15px;
  }
  
  .hero_title {
    font-size: 2rem;
  }
  
  .hero_subtitle {
    font-size: 1rem;
  }
  
  .intro_highlights {
    grid-template-columns: 1fr;
  }
  
  .stats_wrapper {
    flex-direction: column;
    align-items: center;
  }
  
  .stats_item {
    width: 100%;
    max-width: 300px;
  }
  
  .tech_grid_v2 {
    grid-template-columns: 1fr;
  }
  
  .section_header_modern .header_title {
    font-size: 1.8rem;
  }
  
  .patent_flow_item {
    width: 130px;
    height: 180px;
  }
  
  .patent_flow_img {
    height: 110px;
  }
  
  .patent_image_item {
    width: 140px;
  }
  
  .patent_image_item .patent_flow_img {
    height: 200px;
  }
  
  .patent_flow_track {
    gap: 15px;
    animation-duration: 45s;
  }
  
  .patent_flow_wrapper::before,
  .patent_flow_wrapper::after {
    width: 80px;
  }
}

@media (max-width: 576px) {
  .layout_padding {
    padding: 60px 0;
  }
  
  .hero_title {
    font-size: 1.8rem;
  }
  
  .hero_tag {
    font-size: 0.75rem;
    padding: 6px 15px;
  }
  
  .intro_title {
    font-size: 1.8rem;
  }
  
  .stats_number {
    font-size: 2.5rem;
  }
  
  .node_card {
    padding: 20px 15px;
  }
  
  .marker_year {
    font-size: 0.9rem;
    padding: 6px 15px;
  }
  
  .patent_flow_item {
    width: 120px;
    height: 160px;
  }
  
  .patent_flow_img {
    height: 100px;
  }
  
  .patent_flow_placeholder i {
    font-size: 28px;
  }
  
  .patent_image_item {
    width: 120px;
  }
  
  .patent_image_item .patent_flow_img {
    height: 170px;
  }
  
  .patent_flow_track {
    gap: 12px;
    animation-duration: 35s;
  }
}