/* 全局样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background-color: #ffffff;
  overflow-x: hidden;
}

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 16px;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  color: #667eea;
  border: 1px solid #667eea;
}

.btn-secondary:hover {
  background: rgba(102, 126, 234, 0.1);
  color: #667eea;
  transform: translateY(-3px);
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 15px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: #4a5568;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #667eea;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: #a78bfa;
  font-weight: 600;
}

.nav-link.active::after {
  width: 100%;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
}

.contact-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white !important;
  padding: 8px 16px;
  border-radius: 6px;
}

.contact-btn::after {
  display: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #1a1a1a;
  margin: 3px 0;
  transition: 0.3s;
}

/* 主页横幅 */
.hero {
  min-height: 100vh;
  padding: 120px 0 50px;
  background: linear-gradient(135deg, #f5f7fa 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23667eea" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  min-height: 80vh;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation-duration: 1s;
  max-width: 600px;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* AI硬件页面的gradient-text样式 - 在深色背景上使用协调的亮色渐变 */
.ai-hardware-hero .gradient-text {
  background: linear-gradient(135deg, #a78bfa 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: #4a5568;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}

.stat-item {
  text-align: left;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 5px;
}

.stat-label {
  font-size: 1rem;
  color: #4a5568;
  font-weight: 500;
}

/* 确保主页hero-stats在所有情况下都有正确的颜色 */
.hero .stat-number {
  color: #667eea !important;
}

.hero .stat-label {
  color: #4a5568 !important;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

.hero-visual {
  position: relative;
  animation-duration: 1s;
  animation-delay: 0.3s;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.floating-card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  animation: float 3s ease-in-out infinite;
  min-width: 340px;
  width: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.floating-card:hover {
  transform: translateY(-5px) !important;
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.15);
}

.floating-card:nth-child(1) {
  margin-right: 40px;
  z-index: 4;
}

.floating-card:nth-child(2) {
  animation-delay: 1s;
  margin-right: 0;
  z-index: 3;
}

.floating-card:nth-child(3) {
  animation-delay: 2s;
  margin-right: 20px;
  z-index: 2;
}

.floating-card:nth-child(4) {
  animation-delay: 1.5s;
  margin-right: 60px;
  z-index: 1;
}

.card-icon {
  font-size: 2.2rem;
  min-width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-content {
  flex: 1;
}

.card-content h4 {
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
  font-size: 1.1rem;
  white-space: nowrap;
}

.card-content p {
  color: #718096;
  font-size: 0.95rem;
  line-height: 1.4;
  margin: 0;
}

/* 章节标题 */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #1a1a1a;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #718096;
  max-width: 600px;
  margin: 0 auto;
}

/* 技术部分 */
.technology {
  padding: 100px 0;
  background: #f8fafc;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.tech-card {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.4s ease;
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.tech-card:hover::before {
  transform: scaleX(1);
}

.tech-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(167, 139, 250, 0.15);
  border-color: rgba(167, 139, 250, 0.3);
}

.tech-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tech-card h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 25px;
  color: #1a1a1a;
  line-height: 1.3;
}

.tech-specs,
.tech-comparison,
.medical-stats {
  margin-bottom: 30px;
  background: linear-gradient(
    135deg,
    rgba(167, 139, 250, 0.05) 0%,
    rgba(139, 92, 246, 0.05) 100%
  );
  border-radius: 12px;
  padding: 20px;
  border: 1px solid rgba(167, 139, 250, 0.1);
}

.spec-item,
.comparison-item,
.medical-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid rgba(167, 139, 250, 0.15);
  transition: all 0.3s ease;
}

.spec-item:hover,
.comparison-item:hover,
.medical-item:hover {
  background: rgba(167, 139, 250, 0.08);
  border-radius: 8px;
  padding-left: 10px;
  padding-right: 10px;
}

.spec-item:last-child,
.comparison-item:last-child,
.medical-item:last-child {
  border-bottom: none;
}

.spec-label,
.comparison-label,
.medical-label {
  color: #4a5568;
  font-size: 0.95rem;
  font-weight: 500;
}

.spec-value,
.comparison-value,
.medical-value {
  font-weight: 700;
  color: #a78bfa;
  font-size: 1rem;
}

.tech-features {
  list-style: none;
  background: linear-gradient(
    135deg,
    rgba(167, 139, 250, 0.05) 0%,
    rgba(139, 92, 246, 0.05) 100%
  );
  border-radius: 8px;
  padding: 15px;
  margin-top: 20px;
}

.tech-features li {
  padding: 10px 0;
  position: relative;
  padding-left: 25px;
  color: #4a5568;
  font-weight: 500;
  transition: all 0.3s ease;
  border-radius: 6px;
}

.tech-features li:hover {
  background: rgba(167, 139, 250, 0.1);
  padding-left: 30px;
  color: #2d3748;
}

.tech-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #a78bfa;
  font-weight: bold;
  font-size: 14px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(167, 139, 250, 0.2);
  border-radius: 50%;
}

/* 产品部分 */
.products {
  padding: 100px 0;
}

.product-tabs {
  max-width: 1000px;
  margin: 0 auto;
}

.tab-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 50px;
  background: #f1f5f9;
  border-radius: 12px;
  padding: 8px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  color: #718096;
  transition: all 0.3s ease;
}

.tab-btn.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.tab-content {
  position: relative;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.product-info h3 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #1a1a1a;
}

.product-info > p {
  color: #718096;
  margin-bottom: 30px;
  font-size: 1.1rem;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  background: #f8fafc;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.feature-item:hover {
  transform: translateX(5px);
}

.feature-icon {
  font-size: 2rem;
  min-width: 50px;
}

.feature-text h4 {
  font-weight: 600;
  margin-bottom: 5px;
  color: #1a1a1a;
}

.feature-text p {
  color: #718096;
  font-size: 0.9rem;
}

.age-stages {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 20px;
}

.age-stage {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 8px;
  color: white;
}

.age-label {
  font-weight: 600;
}

.age-focus {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* 产品可视化组件 */
.product-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.monitoring-dashboard,
.smart-home-control,
.education-interface,
.robot-control {
  background: white;
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid #e2e8f0;
  width: 100%;
  max-width: 400px;
}

.dashboard-header,
.control-header,
.education-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid #e2e8f0;
}

.dashboard-header h4,
.control-header h4,
.education-header h4 {
  font-weight: 600;
  color: #1a1a1a;
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #48bb78;
}

.scene-mode,
.child-avatar,
.robot-status {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* 机器人控制界面样式 */
.robot-metrics {
  margin-bottom: 25px;
}

.metric-row {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 15px;
}

.metric-row:last-child {
  margin-bottom: 0;
}

.metric-label {
  font-size: 0.9rem;
  color: #718096;
  min-width: 80px;
}

.metric-bar {
  flex: 1;
  height: 8px;
  background: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: width 1s ease;
}

.metric-value {
  font-size: 0.8rem;
  font-weight: 600;
  color: #667eea;
  min-width: 40px;
  text-align: right;
}

.robot-functions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.function-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  color: #718096;
}

.function-item.active {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.05);
  color: #667eea;
}

.function-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.vital-signs,
.device-grid,
.learning-progress {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.vital-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.vital-label {
  color: #718096;
}

.vital-value {
  font-weight: 600;
  color: #1a1a1a;
}

.device-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.device-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  color: #718096;
}

.device-item.active {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.05);
  color: #667eea;
}

.device-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.progress-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.progress-label {
  font-size: 0.9rem;
  color: #718096;
}

.progress-bar {
  height: 8px;
  background: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  transition: width 1s ease;
}

.scene-stats {
  display: flex;
  justify-content: space-around;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
}

.scene-stats .stat-item {
  text-align: center;
}

.scene-stats .stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: #667eea;
}

.scene-stats .stat-label {
  font-size: 0.8rem;
  color: #718096;
  margin-top: 5px;
}

.tech-highlights {
  display: flex;
  justify-content: space-between;
  margin-bottom: 25px;
  padding: 20px;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border-radius: 12px;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.highlight-item {
  text-align: center;
  flex: 1;
}

.highlight-label {
  display: block;
  font-size: 0.8rem;
  color: #718096;
  margin-bottom: 5px;
}

.highlight-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #667eea;
}

/* 案例部分 */
.cases {
  padding: 100px 0;
  background: #f8fafc;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.case-card {
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e2e8f0;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.case-card.highlight {
  border: 2px solid #667eea;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
}

.case-header {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 20px;
}

.case-icon {
  font-size: 2.5rem;
  min-width: 50px;
}

.case-title h3 {
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 5px;
}

.case-location {
  color: #718096;
  font-size: 0.9rem;
}

.case-metrics {
  display: flex;
  gap: 20px;
  margin-bottom: 15px;
}

.metric-item {
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: #667eea;
}

.metric-label {
  font-size: 0.8rem;
  color: #718096;
}

.case-description {
  color: #4a5568;
  font-weight: 500;
  font-size: 0.9rem;
}

/* 未来战略 */
.future-strategy {
  padding: 100px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.future-strategy .section-title,
.future-strategy .section-subtitle {
  color: white;
}

.roadmap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.roadmap-item {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: 16px;
  text-align: center;
  min-width: 250px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.roadmap-year {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #f7fafc;
}

.roadmap-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.roadmap-content ul {
  list-style: none;
  text-align: left;
}

.roadmap-content li {
  padding: 5px 0;
  position: relative;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.9);
}

.roadmap-content li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: #f7fafc;
}

.roadmap-arrow {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.7);
  margin: 0 10px;
}

/* 关于我们 */
.about {
  padding: 100px 0;
}

.about-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 30px;
  color: #1a1a1a;
}

.about-text blockquote {
  font-size: 1.3rem;
  font-style: italic;
  color: #667eea;
  margin: 30px 0;
  padding: 20px;
  border-left: 4px solid #667eea;
  background: rgba(102, 126, 234, 0.05);
  border-radius: 0 8px 8px 0;
}

.about-text p {
  font-size: 1.1rem;
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: 40px;
}

.company-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.value-item {
  text-align: left;
  padding: 25px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
}

.value-item h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #1a1a1a;
}

.value-item p {
  color: #718096;
  font-size: 0.95rem;
  margin: 0;
}

/* 核心团队 */
.team-section {
  margin-top: 80px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.team-member {
  background: white;
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: left;
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.member-avatar {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.avatar-placeholder {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.member-info h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 5px;
  text-align: center;
}

.member-info h4 {
  font-size: 1rem;
  color: #667eea;
  margin-bottom: 15px;
  text-align: center;
  font-weight: 500;
}

.member-info p {
  color: #4a5568;
  line-height: 1.6;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.member-achievements {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.achievement {
  background: rgba(102, 126, 234, 0.1);
  color: #667eea;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.team-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.team-stats .stat-item {
  text-align: center;
}

.team-stats .stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 5px;
}

.team-stats .stat-label {
  font-size: 0.9rem;
  color: #718096;
}

/* 联系我们 */
.contact {
  padding: 100px 0;
  background: #f8fafc;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.contact-info h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #1a1a1a;
}

.contact-info > p {
  color: #718096;
  font-size: 1.1rem;
  margin-bottom: 40px;
}

/* AI图标优化样式 */
.ai-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.ai-icon:hover {
  transform: scale(1.1);
}

/* 如果AI图标在method-icon中，调整容器样式 */
.method-icon img.ai-icon {
  width: 32px;
  height: 32px;
}

/* 联系我们核心优势 */
.contact-highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.highlight-card {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.highlight-card:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  border-color: #667eea;
}

.highlight-icon {
  font-size: 2rem;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.highlight-text h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 5px;
}

.highlight-text p {
  font-size: 0.9rem;
  color: #718096;
  margin: 0;
}

/* 商务合作邀约 */
.partnership-invitation {
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 40px;
}

.partnership-invitation h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #667eea;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.invitation-content p {
  color: #4a5568;
  font-size: 1rem;
  line-height: 1.8;
  margin: 0;
}

.invitation-content strong {
  color: #1a1a1a;
  font-weight: 600;
}

.home-highlight-scenarios {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: #a78bfa; /* 备用颜色，当渐变不支持时显示 */
  font-weight: 600;
}

/* 为不支持背景裁剪的浏览器提供备用样式 */
@supports not (-webkit-background-clip: text) {
  .home-highlight-scenarios {
    background: none;
    color: #a78bfa;
    -webkit-text-fill-color: initial;
  }
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 25px;
  background: white;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.contact-method:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  border-color: #667eea;
}

.method-icon {
  font-size: 2rem;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.method-text {
  flex: 1;
}

.method-text h4 {
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.method-text p {
  color: #667eea;
  font-weight: 500;
  margin: 0;
  line-height: 1.5;
}

/* 二维码样式 */
.method-qr {
  flex-shrink: 0;
}

.qr-code {
  width: 80px;
  height: 80px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  transition: transform 0.3s ease;
}

.qr-code:hover {
  transform: scale(1.1);
  border-color: #667eea;
}

.contact-form {
  background: white;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  height: fit-content;
}

.contact-form .partnership-invitation {
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* 页脚 */
.footer {
  background: #1a1a1a;
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-weight: 600;
  margin-bottom: 20px;
  color: white;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section ul li a {
  color: #a0aec0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: #667eea;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.footer-logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.footer-logo .logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1); /* 确保深色logo在深色背景下可见 */
}

.footer-logo .logo-text {
  color: white;
}

.footer-section p {
  color: #a0aec0;
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #2d3748;
  color: #a0aec0;
}

.domain-link {
  color: #667eea;
  text-decoration: none;
  transition: color 0.3s ease;
}

.domain-link:hover {
  color: #764ba2;
  text-decoration: underline;
}

.beian-link {
  color: #a0aec0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.beian-link:hover {
  color: #a78bfa;
  text-decoration: underline;
}

/* Footer二维码样式 */
.footer-qr {
  margin-top: 20px;
  text-align: left;
}

.footer-qr-code {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.footer-qr-code:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.qr-description {
  color: #a0aec0 !important;
  font-size: 12px;
  margin: 8px 0 0 0 !important;
  line-height: 1.4;
}

/* AI硬件软件方案架构样式 */
.architecture-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
}

.architecture-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(
      circle at 20% 50%,
      rgba(167, 139, 250, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(139, 92, 246, 0.1) 0%,
      transparent 50%
    );
  pointer-events: none;
}

.architecture-overview {
  margin-bottom: 60px;
}

.architecture-diagram {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.architecture-diagram::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #a78bfa, #8b5cf6, #7c3aed);
}

.architecture-layer {
  margin-bottom: 30px;
  padding: 25px;
  border-radius: 15px;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  position: relative;
}

.architecture-layer:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(167, 139, 250, 0.2);
}

.cloud-layer {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border-color: #f59e0b;
}

.saas-layer {
  background: linear-gradient(135deg, #ddd6fe 0%, #c4b5fd 100%);
  border-color: #a78bfa;
}

.app-layer {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  border-color: #3b82f6;
}

.edge-layer {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  border-color: #10b981;
}

.hardware-layer {
  background: linear-gradient(135deg, #fecaca 0%, #fca5a5 100%);
  border-color: #ef4444;
}

.layer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}

.layer-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  margin: 0;
}

.layer-description {
  font-size: 0.9rem;
  color: #64748b;
  font-weight: 500;
}

.layer-components {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.component-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.component-item:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateX(5px);
}

.component-icon {
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
}

.component-item span {
  font-weight: 600;
  color: #374151;
  font-size: 0.95rem;
}

.architecture-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.feature-highlight {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border-top: 4px solid #a78bfa;
}

.feature-highlight:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(167, 139, 250, 0.2);
}

.feature-highlight .feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  display: block;
}

.feature-highlight h4 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 15px;
}

.feature-highlight p {
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 20px;
}

.feature-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-benefits li {
  padding: 8px 0;
  color: #374151;
  font-weight: 500;
  position: relative;
  padding-left: 25px;
}

.feature-benefits li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
}

.architecture-specs {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
  margin: 60px 0;
}

.architecture-specs h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 30px;
  text-align: center;
}

.specs-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.spec-category {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 25px;
  border-radius: 15px;
  border: 2px solid #e2e8f0;
  transition: all 0.3s ease;
}

.spec-category:hover {
  border-color: #a78bfa;
  transform: translateY(-3px);
}

.spec-category h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #a78bfa;
  margin-bottom: 20px;
  text-align: center;
}

.spec-items {
  space-y: 12px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #e2e8f0;
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-name {
  font-weight: 600;
  color: #374151;
}

.spec-value {
  font-weight: 700;
  color: #1e293b;
  text-align: right;
}

.development-workflow {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.development-workflow h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 30px;
  text-align: center;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.workflow-step {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 15px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  min-width: 0;
}

.workflow-step:hover {
  border-color: #a78bfa;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(167, 139, 250, 0.2);
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 8px;
}

.step-content p {
  color: #64748b;
  line-height: 1.5;
  margin: 0;
  font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .architecture-section {
    padding: 60px 0;
  }

  .architecture-diagram {
    padding: 25px;
  }

  .layer-components {
    grid-template-columns: 1fr;
  }

  .architecture-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .specs-comparison {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .workflow-step {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .workflow-steps {
    grid-template-columns: 1fr;
    gap: 15px;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .floating-card:nth-child(2),
  .floating-card:nth-child(3) {
    margin-left: 0;
  }

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

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .tab-buttons {
    flex-direction: column;
    gap: 5px;
  }

  .product-showcase {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .roadmap {
    flex-direction: column;
  }

  .roadmap-arrow {
    transform: rotate(90deg);
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }

  .footer-qr {
    text-align: center;
  }

  .footer-qr-code {
    width: 80px;
    height: 80px;
  }

  .company-values {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .team-stats {
    gap: 30px;
  }

  .tech-highlights {
    flex-direction: column;
    gap: 15px;
  }

  .device-grid {
    grid-template-columns: 1fr 1fr;
  }

  .partnership-invitation {
    padding: 20px;
  }

  .highlight-card,
  .contact-method {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .case-metrics {
    flex-direction: column;
    gap: 15px;
  }

  .roadmap-item {
    min-width: auto;
    width: 100%;
  }

  .advantage-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .advantages-grid {
    grid-template-columns: 1fr !important;
    gap: 15px;
  }
}

/* 加载动画 */
@keyframes slideInUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.animate-slide-up {
  animation: slideInUp 0.6s ease-out;
}

/* 滚动指示器 */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  z-index: 9999;
  transition: width 0.1s ease;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* AI硬件解决方案页面样式 */
.ai-hardware-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.ai-hardware-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

/* AI硬件页面专用的hero容器样式 */
.ai-hardware-hero .hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.ai-hardware-hero .hero-content {
  animation-duration: 1s;
  max-width: 600px;
}

.ai-hardware-hero .hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: white;
}

.ai-hardware-hero .hero-subtitle {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 40px;
  line-height: 1.8;
}

.ai-hardware-hero .hero-stats {
  display: flex;
  gap: 30px;
  margin: 30px 0;
}

.ai-hardware-hero .stat-item {
  text-align: center;
}

.ai-hardware-hero .stat-number {
  display: block;
  font-size: 28px;
  font-weight: bold;
  color: #fff !important;
  margin-bottom: 5px;
}

.ai-hardware-hero .stat-label {
  font-size: 14px;
  color: #fff !important;
}

.ai-hardware-hero .hero-buttons {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

/* AI硬件页面按钮样式调整 */
.ai-hardware-hero .btn-primary {
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  color: #ffffff;
  font-weight: 600;
}

.ai-hardware-hero .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(167, 139, 250, 0.4);
}

.ai-hardware-hero .btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(167, 139, 250, 0.4);
}

.ai-hardware-hero .btn-secondary:hover {
  background: rgba(167, 139, 250, 0.1);
  border-color: rgba(167, 139, 250, 0.6);
  color: #a78bfa;
}

.ai-hardware-hero .floating-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: float 3s ease-in-out infinite;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  min-width: 320px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ai-hardware-hero .floating-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(167, 139, 250, 0.3);
}

.ai-hardware-hero .floating-card:nth-child(1) {
  margin-right: 40px;
  animation-delay: 0s;
}

.ai-hardware-hero .floating-card:nth-child(2) {
  margin-right: 0;
  animation-delay: 0.5s;
}

.ai-hardware-hero .floating-card:nth-child(3) {
  margin-right: 20px;
  animation-delay: 1s;
}

.ai-hardware-hero .floating-card:nth-child(4) {
  margin-right: 60px;
  animation-delay: 1.5s;
}

/* AI硬件页面hero-visual容器 */
.ai-hardware-hero .hero-visual {
  position: relative;
  animation-duration: 1s;
  animation-delay: 0.3s;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.ai-hardware-hero .card-icon {
  font-size: 2.2rem;
  min-width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-hardware-hero .card-content {
  flex: 1;
}

.ai-hardware-hero .card-content h4 {
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
  font-size: 1.1rem;
  white-space: nowrap;
}

.ai-hardware-hero .card-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.4;
  margin: 0;
}

.ai-hardware-products {
  padding: 80px 0;
  background: #f8f9fa;
}

.products-showcase {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.product-category-section {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.product-category-section:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 30px;
  /* margin-bottom: 40px; */
}

.category-icon-large {
  font-size: 60px;
  width: 128px;
  height: 128px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 20px;
  color: white;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.category-icon-large .product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
  transition: all 0.3s ease;
  z-index: 2;
  position: relative;
}

.category-icon-large .product-image:hover {
  transform: scale(1.05);
}

.category-icon-large .emoji-fallback {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 60px;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
  color: white;
}

/* 当图片加载失败或不存在时显示emoji */
.category-icon-large .product-image[src=''],
.category-icon-large .product-image.error {
  display: none;
}

.category-icon-large .product-image.error + .emoji-fallback {
  opacity: 1;
}

.category-title h3 {
  margin: 0 0 10px 0;
  font-size: 28px;
  color: #333;
  font-weight: 700;
}

.category-title p {
  margin: 0;
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.product-details {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

.product-left-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.product-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border-radius: 12px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.1);
}

.feature-icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
  color: white;
  flex-shrink: 0;
}

.feature-card h4 {
  margin: 0 0 8px 0;
  font-size: 16px;
  color: #333;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  font-size: 14px;
  color: #666;
  line-height: 1.5;
}

.product-specs {
  background: linear-gradient(
    135deg,
    rgba(167, 139, 250, 0.05) 0%,
    rgba(139, 92, 246, 0.05) 100%
  );
  border-radius: 16px;
  padding: 25px;
  border: 1px solid rgba(167, 139, 250, 0.1);
  height: fit-content;
  align-self: start;
}

.product-specs h4 {
  margin: 0 0 20px 0;
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.specs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.spec-item {
  background: white;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid rgba(167, 139, 250, 0.1);
  position: relative;
  overflow: hidden;
}

.spec-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.spec-item:hover::before {
  transform: scaleX(1);
}

.spec-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(167, 139, 250, 0.15);
  border-color: rgba(167, 139, 250, 0.3);
}

.spec-label {
  display: block;
  font-weight: 600;
  color: #4a5568;
  font-size: 13px;
  margin-bottom: 6px;
}

.spec-value {
  display: block;
  color: #a78bfa;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.3;
}

.solution-advantages-section {
  padding: 80px 0;
  background: white;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.advantage-card {
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border-radius: 20px;
  padding: 30px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(102, 126, 234, 0.15);
}

.advantage-icon {
  font-size: 32px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 15px;
  color: white;
  margin-bottom: 20px;
}

.advantage-content h3 {
  margin: 0 0 15px 0;
  font-size: 20px;
  color: #333;
  font-weight: 700;
}

.advantage-content p {
  margin: 0 0 20px 0;
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.advantage-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.advantage-features li {
  padding: 8px 0;
  color: #555;
  font-size: 14px;
  position: relative;
  padding-left: 25px;
}

.advantage-features li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: bold;
  font-size: 16px;
}

.market-trends-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
}

.market-trends-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23a78bfa" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
  opacity: 0.5;
}

.market-insights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.market-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}

.stat-card {
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.4s ease;
  border: 1px solid rgba(167, 139, 250, 0.1);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 20px 40px rgba(167, 139, 250, 0.2);
  border-color: rgba(167, 139, 250, 0.3);
}

.stat-icon {
  font-size: 40px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-number {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: #a78bfa;
  margin-bottom: 8px;
  line-height: 1;
}

.stat-label {
  color: #4a5568;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

.market-trends-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.trend-item {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  border-left: 4px solid #a78bfa;
  transition: all 0.3s ease;
}

.trend-item:hover {
  transform: translateX(5px);
  box-shadow: 0 8px 25px rgba(167, 139, 250, 0.15);
}

.trend-item h3 {
  margin: 0 0 15px 0;
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.trend-item p {
  margin: 0;
  font-size: 16px;
  color: #4a5568;
  line-height: 1.6;
}

.success-cases {
  padding: 80px 0;
  background: #f8f9fa;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.case-card {
  background: white;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.case-card.featured {
  grid-column: span 2;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border: 2px solid rgba(102, 126, 234, 0.2);
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.case-icon {
  font-size: 32px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 15px;
  color: white;
}

.case-title h3 {
  margin: 0 0 5px 0;
  font-size: 18px;
  color: #333;
  font-weight: 600;
}

.case-location {
  font-size: 14px;
  color: #666;
}

.case-metrics {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}

.metric-item {
  text-align: center;
  flex: 1;
}

.metric-value {
  display: block;
  font-size: 24px;
  font-weight: bold;
  color: #667eea;
  margin-bottom: 5px;
  text-align: center;
}

.metric-label {
  font-size: 12px;
  color: #666;
}

.case-description {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
  margin: 0;
}

.contact-solutions {
  padding: 80px 0;
  background: white;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  margin: 0 0 30px 0;
  font-size: 24px;
  color: #333;
  font-weight: 700;
}

.contact-highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border-radius: 12px;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.highlight-icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
  color: white;
  flex-shrink: 0;
}

.highlight-text h4 {
  margin: 0 0 8px 0;
  font-size: 16px;
  color: #333;
  font-weight: 600;
}

.highlight-text p {
  margin: 0;
  font-size: 14px;
  color: #666;
  line-height: 1.5;
}

.partnership-invitation {
  background: #f8f9fa;
  border-radius: 16px;
  padding: 25px;
}

.partnership-invitation h3 {
  margin: 0 0 20px 0;
  font-size: 20px;
  color: #333;
  font-weight: 700;
}

.invitation-content p {
  margin: 0 0 15px 0;
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}

.highlight-scenarios {
  background: white;
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid #667eea;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

.highlight-scenarios strong {
  color: #667eea;
}

.contact-form {
  background: #f8f9fa;
  border-radius: 20px;
  padding: 40px;
}

.contact-form .form-group {
  margin-bottom: 20px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 15px;
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  font-size: 16px;
  transition: all 0.3s ease;
  background: white;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.contact-form button {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  border-radius: 10px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stats {
    justify-content: space-between;
  }

  .product-details {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .product-left-content {
    gap: 20px;
  }

  .product-features-grid {
    grid-template-columns: 1fr;
  }

  .product-specs {
    margin-top: 0;
  }

  .market-insights {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .market-stats {
    grid-template-columns: 1fr;
  }

  .tech-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .specs-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .spec-item {
    padding: 15px;
  }

  .spec-label {
    font-size: 13px;
  }

  .spec-value {
    font-size: 14px;
  }

  .tech-card {
    padding: 30px;
  }

  .tech-card h3 {
    font-size: 1.4rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .case-card.featured {
    grid-column: span 1;
  }

  .floating-card {
    min-width: 280px;
    margin-right: 0 !important;
  }

  /* 普通页面响应式样式 */
  .hero .hero-visual {
    align-items: center;
  }

  /* AI硬件页面响应式样式 */
  .ai-hardware-hero .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .ai-hardware-hero .hero-stats {
    justify-content: center;
  }

  .ai-hardware-hero .hero-visual {
    align-items: center;
  }

  .ai-hardware-hero .floating-card {
    min-width: 280px;
    margin-right: 0 !important;
  }
}

/* AI硬件产品选项卡样式 */
.ai-hardware-categories {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 30px 0;
}

.hardware-category {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  border-radius: 12px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
}

.hardware-category:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.1);
  border-color: rgba(102, 126, 234, 0.2);
}

.category-icon {
  font-size: 28px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
  margin-top: 5px;
}

.category-info h4 {
  color: #2d3748;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.category-info p {
  color: #4a5568;
  font-size: 14px;
  margin-bottom: 15px;
  line-height: 1.5;
}

.category-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-features li {
  color: #718096;
  font-size: 13px;
  margin-bottom: 6px;
  padding-left: 15px;
  position: relative;
}

.category-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: bold;
}

.solution-advantages {
  margin-top: 40px;
}

.solution-advantages h4 {
  color: #2d3748;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  text-align: center;
}

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

.advantage-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.advantage-icon {
  font-size: 20px;
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 6px;
}

.advantage-text h5 {
  color: #2d3748;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 3px;
}

.advantage-text p {
  color: #4a5568;
  font-size: 12px;
  line-height: 1.4;
}

.hardware-showcase {
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.05) 0%,
    rgba(118, 75, 162, 0.05) 100%
  );
  padding: 25px;
  border-radius: 15px;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.showcase-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.showcase-header h4 {
  color: #2d3748;
  font-size: 18px;
  font-weight: 600;
}

.product-category-selector {
  display: flex;
  gap: 8px;
}

.category-btn {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 20px;
  font-size: 12px;
  color: #4a5568;
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-btn.active,
.category-btn:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-color: transparent;
}

.hardware-display {
  position: relative;
  min-height: 180px;
}

.hardware-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  align-items: center;
}

.hardware-item.active {
  opacity: 1;
  transform: translateY(0);
}

.hardware-image {
  font-size: 60px;
  text-align: center;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.hardware-specs {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

.spec-row:last-child {
  border-bottom: none;
}

.market-trends {
  margin-top: 30px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 10px;
}

.market-trends h5 {
  color: #2d3748;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 15px;
  text-align: center;
}

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

.trend-item {
  text-align: center;
  padding: 10px;
}

.trend-value {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 5px;
}

.trend-label {
  font-size: 12px;
  color: #4a5568;
  line-height: 1.3;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .ai-hardware-categories {
    gap: 15px;
  }

  .hardware-category {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .category-icon {
    margin: 0 auto;
  }

  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .hardware-display {
    min-height: 200px;
  }

  .hardware-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 15px;
  }

  .showcase-header {
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }

  .product-category-selector {
    justify-content: center;
  }

  .trend-stats {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

/* 手机端专用样式 - 确保单列布局 */
@media (max-width: 600px) {
  .advantages-grid {
    grid-template-columns: 1fr !important;
    gap: 15px;
  }

  .advantage-card {
    padding: 20px;
  }
}

/* 小屏幕手机端 */
@media (max-width: 480px) {
  .advantages-grid {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  .advantage-card {
    padding: 18px;
  }
}