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

:root {
  /* 医疗绿品牌色 */
  --primary: #00B42A;
  --primary-dark: #009A2A;
  --primary-light: #23C343;
  --primary-rgba: rgba(0, 180, 42, 0.1);
  --secondary: #165DFF;
  --text-primary: #1D2129;
  --text-secondary: #4E5969;
  --text-tertiary: #86909C;
  --bg-white: #FFFFFF;
  --bg-light: #F7F8FA;
  --bg-dark: #1D2129;
  --border-color: #E5E6EB;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --container-max: 1200px;
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 容器 */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  box-shadow: 0 4px 12px var(--primary-rgba);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--primary-rgba);
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.btn-tech-blue {
  background: linear-gradient(135deg, #0066CC 0%, #00A3FF 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-tech-blue:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 102, 204, 0.4);
  background: linear-gradient(135deg, #0052A3 0%, #0066CC 100%);
}

.btn-indigo-blue {
  background: linear-gradient(135deg, #1A237E 0%, #3949AB 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.btn-indigo-blue:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(26, 35, 126, 0.4);
  background: linear-gradient(135deg, #0D1450 0%, #1A237E 100%);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

/* 顶部栏 */
.top-bar {
  background: var(--bg-dark);
  color: white;
  padding: 10px 0;
  font-size: 14px;
  position: sticky;
  top: 0;
  z-index: 1001;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-contact {
  display: flex;
  gap: 30px;
}

.top-bar-contact a {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-bar-contact a:hover {
  color: var(--primary);
}

/* 导航栏 */
.header {
  background: var(--bg-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 40px;
  z-index: 1000;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background-image: url('../images/公司logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border-radius: var(--radius);
}

.logo-text h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-text p {
  font-size: 12px;
  color: var(--text-secondary);
}

.nav {
  display: flex;
  gap: 8px;
}

.nav a {
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 500;
  color: var(--text-secondary);
}

.nav a:hover,
.nav a.active {
  color: var(--primary);
  background: var(--primary-rgba);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 28px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, #F7F8FA 0%, #E8FFEC 100%);
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero .btn {
  font-size: 18px;
  padding: 16px 48px;
}

/* Section 通用样式 */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-title p {
  font-size: 16px;
  color: var(--text-secondary);
}

/* 产品九宫格 */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  row-gap: 20px;
  column-gap: 10px;
}

.product-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-rgba) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card .card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.product-icon {
  width: 55px;
  height: 55px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
  overflow: hidden;
}

.product-icon.edcc {
  background: linear-gradient(135deg, #0066CC 0%, #00A3FF 100%);
  position: relative;
  border: none;
  font-size: 0;
}

.product-icon.edcc::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/dcc-logo.png');
  background-size: 85%;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.9;
}

/* 第二行：精益深海蓝/靛青色 */
.product-icon.indigo {
  background: linear-gradient(135deg, #1A237E 0%, #3949AB 100%);
}

.product-card.indigo .product-code {
  color: #1A237E;
}

/* 第三行：合规翡翠绿 */
.product-icon.emerald {
  background: linear-gradient(135deg, #047857 0%, #10B981 100%);
}

.product-card.emerald .product-code {
  color: #047857;
}

/* 第一行：科技曜蓝 */
.product-icon.tech-blue {
  background: linear-gradient(135deg, #0066CC 0%, #00A3FF 100%);
  position: relative;
  border: none;
  font-size: 0;
}

.product-icon.tech-blue::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/dcc-logo.png');
  background-size: 85%;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.9;
}

.product-card.tech-blue .product-code {
  color: #0066CC;
}

/* AI文控管理系统 emoji 图标 */
.product-icon.edcc-emoji {
  background: linear-gradient(135deg, #0066CC 0%, #00A3FF 100%);
  font-size: 28px;
}

/* 培训管理系统和设计控制系统 emoji 图标 */
.product-icon.tech-blue-emoji {
  background: linear-gradient(135deg, #0066CC 0%, #00A3FF 100%);
  font-size: 28px;
}

.product-icon.indigo-blue {
  background: linear-gradient(135deg, #1A237E 0%, #3949AB 100%);
  position: relative;
  border: none;
  font-size: 0;
}

.product-icon.indigo-blue::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/dcc-logo.png');
  background-size: 85%;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.9;
}

.product-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  position: relative;
  z-index: 1;
  line-height: 1.4;
}

.product-card .product-code {
  font-size: 14px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.product-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* 优势区域 */
.advantages {
  background: var(--bg-light);
}

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

.advantage-item {
  text-align: center;
  padding: 30px 20px;
}

.advantage-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.advantage-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
}

.advantage-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* CTA 区域 */
.cta-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #2C3E50 100%);
  color: white;
  padding: 60px 0;
}

.cta-content {
  text-align: center;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 30px;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  width: 56px;
  height: 56px;
  background-image: url('../images/公司logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  background-color: white;
  border-radius: var(--radius);
}

.footer-brand h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 0;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
  line-height: 1.8;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact a:hover {
  color: var(--primary);
}

.footer-column h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
  white-space: nowrap;
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 40px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 28px;
  cursor: pointer;
  color: var(--text-tertiary);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-content h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
}

.modal-content p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 16px;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-rgba);
}

/* 产品详情页 */
.product-detail-hero {
  background: linear-gradient(135deg, #E6F2FF 0%, #D0E8FF 100%);
  padding: 80px 0;
  text-align: center;
}

.product-detail-hero .product-icon {
  width: 80px;
  height: 80px;
}

.product-hero-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  justify-content: center;
}

.product-hero-title {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.product-hero-title h1 {
  margin-bottom: 0;
}

.product-detail-hero h1 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 16px;
}

.product-detail-hero .product-code {
  font-size: 24px;
  color: #0066CC;
  font-weight: 700;
  margin-bottom: 0;
}

.product-detail-hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 32px;
}

.product-detail-content {
  padding: 20px 0;
}

.feature-section {
  margin-bottom: 60px;
  text-align: center;
}

.feature-section h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.pain-header {
  text-align: center;
  margin-bottom: 20px;
  margin-top: -20px;
}

.pain-header .section-title-pain {
  border-bottom-color: #EF4444 !important;
  color: #1E293B;
  display: inline-block;
}

.pain-subtitle {
  font-size: 16px;
  color: #64748B;
  margin-top: 2px;
  margin-bottom: 12px;
}

.pain-tags {
  font-size: 16px;
  color: #fa0e06;
  line-height: 1.6;
  max-width: 100%;
  margin: 8px auto 0 auto;
  white-space: nowrap;
  text-align: center;
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.pain-point-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pain-point-item {
  padding: 24px;
  background: #FFFFFF;
  border-radius: 10px;
  border: 1px solid #E2E8F0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.pain-point-item:hover {
  transform: translateY(-4px);
  border-color: #EF4444;
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.15);
}

.pain-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.pain-point-icon {
  font-size: 24px;
  color: #EF4444;
  flex-shrink: 0;
}

.pain-point-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1E293B;
  margin: 0;
  line-height: 1.4;
}

.pain-scene {
  font-size: 14px;
  color: #64748B;
  line-height: 1.7;
  margin-bottom: 12px;
}

.pain-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, #E2E8F0, transparent);
  margin: 12px 0;
}

.pain-consequence {
  font-size: 14px;
  color: #EF4444;
  font-weight: 500;
  line-height: 1.6;
}

.feature-item {
  padding: 30px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
}

.feature-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-item p {
  color: var(--text-secondary);
  line-height: 1.8;
}

.breadcrumb {
  padding: 20px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.breadcrumb a:hover {
  color: var(--primary);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .advantage-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .pain-point-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  
  .nav.show {
    display: flex;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .advantage-grid {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 28px;
  }
  
  .hero p {
    font-size: 16px;
  }
  
  .section-title h2 {
    font-size: 28px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .top-bar-contact {
    gap: 15px;
  }
  
  .product-detail-hero h1 {
    font-size: 32px;
  }
  
  .pain-point-grid {
    grid-template-columns: 1fr;
  }
}

/* 下拉菜单样式 */
.nav-item {
  position: relative;
}

.nav-item > a {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item > a::after {
  content: '▼';
  font-size: 10px;
  margin-left: 4px;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 1001;
  padding: 8px 0;
  margin-top: 8px;
}

.dropdown::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 20px;
  border: 8px solid transparent;
  border-bottom-color: var(--bg-white);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 14px;
  transition: all 0.2s ease;
}

.dropdown a:hover {
  background: var(--primary-rgba);
  color: var(--primary);
  padding-left: 28px;
}

@media (max-width: 576px) {
  .top-bar .container {
    flex-direction: column;
    gap: 8px;
  }
  
  .logo-text h1 {
    font-size: 16px;
  }
  
  .dropdown {
    position: static;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: var(--bg-light);
    margin-top: 8px;
    display: none;
  }
  
  .nav-item:hover .dropdown,
  .nav-item.active .dropdown {
    display: block;
  }
  
  .dropdown::before {
    display: none;
  }
}

/* 震撼过渡区 */
.transition-section {
  background: linear-gradient(135deg, #0066CC 0%, #004499 100%);
  padding: 100px 0;
  text-align: center;
}

.transition-content h2 {
  color: white;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 20px;
}

.transition-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 20px;
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 通用section标题 */
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 40px;
  text-align: center;
}

/* 文件生命周期管控蓝图 */
.blueprint-section {
  margin-bottom: 60px;
}

.blueprint-values {
  display: flex;
  gap: 30px;
  margin-bottom: 40px;
}

.value-item {
  flex: 1;
  text-align: center;
  padding: 30px 20px;
  background: #F8FAFC;
  border-radius: 12px;
  border: 1px solid #E2E8F0;
}

.value-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.value-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 12px;
}

.value-item p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.6;
}

.blueprint-image {
  text-align: center;
}

.blueprint-image img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 文件中心 */
.file-center-section {
  margin-bottom: 27px;
}

.file-center-section .section-title {
  margin-bottom: 20px;
}

.file-center-content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.file-center-text {
  flex: 1;
}

.file-center-point {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.point-icon {
  font-size: 28px;
  flex-shrink: 0;
  margin-top: 4px;
}

.point-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 8px;
}

.point-content p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.7;
}

.file-center-image {
  flex: 1;
}

.file-center-image img {
  max-width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 其他系统功能展示 */
.features-showcase {
  margin-bottom: 60px;
}

.features-slider {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 10px 0;
}

.feature-slide {
  flex: 0 0 auto;
  width: 400px;
}

.feature-slide img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 功能矩阵 */
.feature-matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-matrix-card {
  padding: 32px 24px;
  background: white;
  border-radius: 12px;
  border: 1px solid #E2E8F0;
  text-align: center;
  transition: all 0.3s ease;
}

.feature-matrix-card:hover {
  transform: translateY(-4px);
  border-color: #0066CC;
  box-shadow: 0 8px 24px rgba(0, 102, 204, 0.15);
}

.feature-matrix-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-matrix-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 8px;
}

.feature-matrix-card > p:nth-child(3) {
  font-size: 14px;
  color: #0066CC;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 14px;
  color: #64748B;
  line-height: 1.6;
}

/* 响应式 */
@media (max-width: 992px) {
  .blueprint-values {
    flex-direction: column;
  }
  
  .file-center-content {
    flex-direction: column;
  }
  
  .feature-matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .transition-content h2 {
    font-size: 28px;
  }
  
  .transition-content p {
    font-size: 16px;
  }
  
  .feature-matrix-grid {
    grid-template-columns: 1fr;
  }
}

/* 亮点介绍 */
.highlights-section {
  margin-bottom: 60px;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.highlight-card {
  background: white;
  border-radius: 16px;
  border: 2px solid #E2E8F0;
  padding: 32px 28px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.highlight-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, #0066CC, #00B42A);
  transition: all 0.4s ease;
  transform: translateX(-50%);
  border-radius: 4px 4px 0 0;
}

.highlight-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: #0066CC;
  box-shadow: 0 16px 40px rgba(0, 102, 204, 0.15);
}

.highlight-card:hover::before {
  width: 100%;
}

.highlight-icon {
  font-size: 52px;
  margin-bottom: 20px;
  display: block;
}

.highlight-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: #1E293B;
  margin-bottom: 8px;
}

.highlight-subtitle {
  font-size: 14px;
  color: #0066CC;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.highlight-content {
  padding-top: 16px;
  border-top: 1px solid #F1F5F9;
}

.highlight-claim {
  font-size: 15px;
  font-weight: 600;
  color: #334155;
  margin-bottom: 12px;
  line-height: 1.6;
}

.highlight-desc {
  font-size: 14px;
  color: #64748B;
  margin-bottom: 16px;
  line-height: 1.6;
}

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

.highlight-list li {
  font-size: 13px;
  color: #475569;
  line-height: 1.7;
  margin-bottom: 14px;
  padding-left: 20px;
  position: relative;
}

.highlight-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #0066CC;
  font-weight: bold;
  font-size: 18px;
}

.highlight-list li:last-child {
  margin-bottom: 0;
}

.highlight-list li strong {
  color: #1E293B;
  font-weight: 700;
}

/* 亮点响应式 */
@media (max-width: 992px) {
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  
  .highlight-card {
    padding: 28px 24px;
  }
}

/* ===== 关于我们页面新样式 ===== */

/* Hero 视觉区 */
.about-hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #0A1628 0%, #1E293B 50%, #0F172A 100%);
  background-image: 
    linear-gradient(135deg, #0A1628 0%, #1E293B 50%, #0F172A 100%),
    radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 180, 42, 0.1) 0%, transparent 40%);
}

.about-hero-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.about-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 80px 20px;
}

.about-hero-content h1 {
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.about-hero-content p {
  font-size: 20px;
  color: rgba(255,255,255,0.85);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 关于我们介绍区 */
.about-intro .section-title p {
  max-width: 1000px;
  margin: 0 auto;
  font-size: 16px;
  color: #4E5969;
  line-height: 1.8;
  text-align: center;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 50px;
}

.value-card {
  background: white;
  border: 2px solid #E2E8F0;
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, #0066CC, #00B42A);
  transition: all 0.4s ease;
  transform: translateX(-50%);
  border-radius: 4px 4px 0 0;
}

.value-card:hover {
  transform: translateY(-8px);
  border-color: #0066CC;
  box-shadow: 0 16px 40px rgba(0, 102, 204, 0.15);
}

.value-card:hover::before {
  width: 100%;
}

.value-icon {
  font-size: 56px;
  margin-bottom: 20px;
  display: block;
}

.value-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 8px;
}

.value-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #0066CC;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  background: rgba(0, 102, 204, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
}

.value-card p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.7;
}

/* 核心实力数字看板 */
.strength-timeline {
  background: linear-gradient(180deg, #F8FAFC 0%, white 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
  padding: 40px 24px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 56px;
  font-weight: 800;
  background: linear-gradient(135deg, #0066CC, #00B42A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.stat-label {
  font-size: 16px;
  color: #4E5969;
  line-height: 1.5;
  font-weight: 500;
}

/* 时间轴 */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 50px auto 0;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #0066CC, #00B42A);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
  padding-left: 30px;
}

.timeline-dot {
  position: absolute;
  left: -48px;
  top: 8px;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, #0066CC, #00B42A);
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

.timeline-content {
  background: white;
  padding: 28px 32px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  border-left: 4px solid #0066CC;
}

.timeline-year {
  font-size: 14px;
  font-weight: 700;
  color: #0066CC;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 22px;
  font-weight: 700;
  color: #1E293B;
  margin-bottom: 12px;
}

.timeline-content p {
  font-size: 15px;
  color: #64748B;
  line-height: 1.7;
  margin: 0;
}

/* 联系我们 */
.contact-trust {
  background: white;
}

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

.contact-info h2 {
  font-size: 32px;
  font-weight: 800;
  color: #1E293B;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  padding: 20px;
  background: #F8FAFC;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.contact-item:hover {
  background: #EEF2FF;
  transform: translateX(4px);
}

.contact-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.contact-label {
  font-size: 14px;
  font-weight: 600;
  color: #64748B;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 16px;
  font-weight: 500;
  color: #1E293B;
}

.contact-visual {
  position: sticky;
  top: 100px;
}

.office-photo {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.office-photo img {
  width: 100%;
  height: auto;
  display: block;
}

/* 预约表单 */
.demo-form-section {
  background: linear-gradient(135deg, #0A1628 0%, #1E293B 100%);
}

.demo-wrapper {
  background: white;
  border-radius: 20px;
  padding: 60px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.demo-content {
  text-align: center;
  margin-bottom: 48px;
}

.demo-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: #1E293B;
  margin-bottom: 16px;
}

.demo-content p {
  font-size: 18px;
  color: #4E5969;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

.demo-form {
  max-width: 700px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.demo-form .form-group {
  margin-bottom: 0;
}

.demo-form label {
  font-size: 15px;
  font-weight: 600;
  color: #334155;
  margin-bottom: 10px;
}

.demo-form input,
.demo-form select,
.demo-form textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid #E2E8F0;
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  transition: all 0.3s ease;
  background: white;
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
  outline: none;
  border-color: #0066CC;
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.demo-form textarea {
  resize: vertical;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .contact-visual {
    position: static;
  }
}

@media (max-width: 992px) {
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .about-hero-content h1 {
    font-size: 36px;
  }
  
  .about-hero-content p {
    font-size: 18px;
  }
}

@media (max-width: 768px) {
  .demo-wrapper {
    padding: 40px 24px;
  }
  
  .demo-content h2 {
    font-size: 24px;
  }
  
  .timeline {
    padding-left: 30px;
  }
  
  .timeline-dot {
    left: -38px;
    width: 16px;
    height: 16px;
  }
  
  .about-hero-content h1 {
    font-size: 28px;
  }
  
  .stat-number {
    font-size: 42px;
  }
}