/* CSS变量（设计系统） */
:root {
  /* 色彩系统 */
  --primary-color: #2563eb; /* 品牌主蓝色 */
  --primary-dark: #1d4ed8;
  --secondary-color: #64748b; /* 中性灰色 */
  --accent-color: #f1f5f9; /* 浅灰背景 */
  --text-color: #334155; /* 主要文字色 */
  --text-light: #64748b; /* 辅助文字色 */
  --white: #ffffff;
  --black: #000000;

  /* 字体系统 */
  --font-main: 'Segoe UI', system-ui, sans-serif;
  --font-heading: 'Georgia', serif;

  /* 间距系统 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  /* 阴影与圆角 */
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --radius: 8px;
}

/* 现代CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--white);
}

/* 基础排版样式 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-sm);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
  width: 100%;
  box-sizing: border-box;
}

/* 按钮样式 - AI大数据风格 */
.btn {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius);
  font-weight: 500;
  text-align: center;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: #ffffff;
  border-color: #6366f1;
  box-shadow: 
    0 4px 15px rgba(99, 102, 241, 0.3),
    0 0 20px rgba(99, 102, 241, 0.2);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
  border-color: #4f46e5;
  box-shadow: 
    0 6px 20px rgba(99, 102, 241, 0.4),
    0 0 30px rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-secondary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border-color: #10b981;
  box-shadow: 
    0 4px 15px rgba(16, 185, 129, 0.3),
    0 0 20px rgba(16, 185, 129, 0.2);
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn-secondary:hover::before {
  left: 100%;
}

.btn-secondary:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  border-color: #059669;
  box-shadow: 
    0 6px 20px rgba(16, 185, 129, 0.4),
    0 0 30px rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: #6366f1;
  border-color: #6366f1;
  box-shadow: 
    0 0 20px rgba(99, 102, 241, 0.2),
    inset 0 0 20px rgba(99, 102, 241, 0.1);
}

.btn-outline:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: #6366f1;
  box-shadow: 
    0 0 30px rgba(99, 102, 241, 0.3),
    inset 0 0 30px rgba(99, 102, 241, 0.2);
  transform: translateY(-2px);
  color: #6366f1;
}

.btn-large {
  padding: var(--space-sm) var(--space-lg);
  font-size: 1.125rem;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background-color: var(--white);
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo a {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  font-family: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Hiragino Sans GB', 'WenQuanYi Micro Hei', sans-serif;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
  letter-spacing: 2px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-logo a:hover {
  color: #6366f1;
  text-shadow: 2px 2px 8px rgba(99, 102, 241, 0.3);
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--space-md);
}

.nav-link {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

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

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

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 3px 0;
  transition: 0.3s;
}

/* 英雄区 - Canvas粒子背景 */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  padding: calc(70px + var(--space-xl)) 0 var(--space-xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  color: #ffffff;
  position: relative;
  z-index: 10;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #e2e8f0;
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 10;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-placeholder {
  width: 100%;
  max-width: 400px;
  overflow: hidden;
  border-radius: var(--radius);
}

.hero-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
}

/* 服务展示区 */
.services-preview {
  padding: var(--space-xl) 0;
  background-color: #ffffff;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  font-size: 2.5rem;
  color: #1e293b;
  font-weight: 700;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background: 
    linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.1),
    0 0 20px rgba(99, 102, 241, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
  transition: left 0.5s ease;
}

.service-card:hover::before {
  left: 100%;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.15),
    0 0 30px rgba(99, 102, 241, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  border-color: rgba(99, 102, 241, 0.3);
}

.service-icon {
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}

.service-title {
  margin-bottom: var(--space-sm);
  color: var(--text-color);
}

.service-description {
  color: var(--text-light);
  margin-bottom: var(--space-md);
}

.service-link {
  color: var(--primary-color);
  font-weight: 500;
}

/* 关于我们预览 */
.about-preview {
  background-color: var(--accent-color);
  padding: var(--space-xl) 0;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-description {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: var(--space-md);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: var(--space-xs);
}

.stat-label {
  color: var(--text-light);
}

/* 成功案例 */
.cases-preview {
  padding: var(--space-xl) 0 var(--space-2xl) 0;
  background-color: #f8fafc;
}

.cases-scroll-container {
  position: relative;
  overflow: hidden;
  width: 100%;
}

.cases-scroll-wrapper {
  display: flex;
  gap: var(--space-md);
  overflow: hidden;
  padding: var(--space-sm) 0;
  scroll-behavior: smooth;
  width: 100%;
}

.case-card {
  background-color: #ffffff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  flex: 0 0 calc(33.333% - var(--space-md));
  min-width: calc(33.333% - var(--space-md));
  max-width: calc(33.333% - var(--space-md));
  height: auto;
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.case-image {
  height: 200px;
  background-color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.case-card:hover .case-img {
  transform: scale(1.05);
}

.case-placeholder {
  color: #64748b;
  font-size: 1.125rem;
  font-weight: 500;
}

.case-content {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-title {
  margin-bottom: var(--space-xs);
  color: #1e293b;
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.4;
}

.case-description {
  color: #475569;
  line-height: 1.6;
  flex: 1;
}

/* 滚动指示器 */
.scroll-indicators {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding-bottom: var(--space-md);
  flex-wrap: wrap;
}

.scroll-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background-color: #cbd5e1;
  cursor: pointer;
  transition: all 0.3s ease;
}

.scroll-btn.active {
  background-color: #6366f1;
  transform: scale(1.2);
}

.scroll-btn:hover {
  background-color: #6366f1;
  transform: scale(1.1);
}

/* 案例弹窗样式 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  background-color: #ffffff;
  margin: 5% auto;
  padding: 0;
  border-radius: var(--radius);
  width: 90%;
  max-width: 800px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  color: #ffffff;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background-color: rgba(0, 0, 0, 0.8);
  transform: scale(1.1);
}

.modal-image-container {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
}

.modal-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.modal-info {
  padding: var(--space-lg);
}

.modal-title {
  color: #1e293b;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.modal-description {
  color: #475569;
  line-height: 1.6;
  font-size: 1rem;
}

/* 案例图片点击效果 */
.case-img {
  cursor: pointer;
  transition: all 0.3s ease;
}

.case-img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}



.case-card {
  background-color: #ffffff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.case-image {
  height: 200px;
  background-color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.case-card:hover .case-img {
  transform: scale(1.05);
}

.case-placeholder {
  color: #64748b;
  font-size: 1.125rem;
  font-weight: 500;
}

.case-content {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-title {
  margin-bottom: var(--space-xs);
  color: #1e293b;
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.4;
}

.case-description {
  color: #475569;
  line-height: 1.6;
  flex: 1;
}

/* 行动号召区 - AI大数据风格 */
.cta {
  background: 
    radial-gradient(circle at 20% 30%, rgba(0, 123, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 200, 83, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, #0d1117 0%, #161b22 50%, #21262d 100%);
  color: var(--white);
  padding: var(--space-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 123, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 123, 255, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: ctaGridMove 40s linear infinite;
  opacity: 0.6;
}

@keyframes ctaGridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: #ffffff;
  text-shadow: 
    0 0 10px rgba(0, 123, 255, 0.8),
    0 0 20px rgba(0, 123, 255, 0.6);
  position: relative;
  z-index: 10;
}

.cta-description {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
  opacity: 0.9;
  color: #e0e0e0;
  text-shadow: 
    0 0 5px rgba(0, 200, 83, 0.6),
    0 0 10px rgba(0, 200, 83, 0.4);
  position: relative;
  z-index: 10;
}

.cta .btn-primary {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  color: #007bff;
  border-color: #ffffff;
  box-shadow: 
    0 4px 15px rgba(255, 255, 255, 0.3),
    0 0 20px rgba(255, 255, 255, 0.2);
}

.cta .btn-primary:hover {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  color: #0056b3;
  box-shadow: 
    0 6px 20px rgba(255, 255, 255, 0.4),
    0 0 30px rgba(255, 255, 255, 0.3);
}

/* 页脚 */
.footer {
  background-color: var(--text-color);
  color: var(--white);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-title {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.footer-subtitle {
  color: var(--white);
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.footer-description {
  color: var(--text-light);
  line-height: 1.6;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--text-light);
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-contact p {
  margin-bottom: var(--space-xs);
  color: var(--text-light);
}

.social-links {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.social-link-container {
  position: relative;
  display: inline-block;
}

.social-link {
  color: var(--text-light);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--text-light);
  border-radius: var(--radius);
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
}

.social-link:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
  transform: scale(1.05);
}

.qr-img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 8px;
}

/* 二维码弹窗 */
.qr-code-popup {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--white);
  border: 2px solid var(--primary-color);
  border-radius: var(--radius);
  padding: var(--space-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  margin-bottom: var(--space-sm);
  min-width: 160px;
}

.social-link-container:hover .qr-code-popup {
  opacity: 1;
  visibility: visible;
}

.qr-code-content {
  text-align: center;
}

.qr-code-image {
  margin-bottom: var(--space-xs);
  display: flex;
  justify-content: center;
}

.qr-code-text {
  font-size: 0.875rem;
  color: var(--text-color);
  margin: 0;
  font-weight: 500;
}

/* 二维码弹窗箭头 */
.qr-code-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top-color: var(--primary-color);
}

.qr-code-popup::before {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 10px solid transparent;
  border-top-color: var(--white);
  margin-top: -2px;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--secondary-color);
  color: var(--text-light);
}

/* 页面标题区 */
.page-header {
  background: 
    radial-gradient(circle at 20% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 128, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(138, 43, 226, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 25%, #16213e 50%, #0f1419 75%, #000000 100%);
  padding: calc(70px + var(--space-xl)) 0 var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

/* 动态网格背景 */
.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    /* 主网格 */
    linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    /* 星星 */
    radial-gradient(2px 2px at 20px 30px, #00ffff, transparent),
    radial-gradient(2px 2px at 40px 70px, #0080ff, transparent),
    radial-gradient(1px 1px at 90px 40px, #ffffff, transparent),
    radial-gradient(1px 1px at 130px 80px, #00ffff, transparent),
    radial-gradient(2px 2px at 160px 30px, #0080ff, transparent),
    /* 电路板效果 */
    radial-gradient(3px 3px at 60px 20px, #00ff00, transparent),
    radial-gradient(2px 2px at 120px 60px, #ff00ff, transparent),
    radial-gradient(1px 1px at 180px 40px, #ffff00, transparent);
  background-size: 
    50px 50px,
    50px 50px,
    200px 100px,
    200px 100px,
    200px 100px,
    200px 100px,
    200px 100px,
    300px 150px,
    300px 150px,
    300px 150px;
  background-position: 
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0;
  animation: 
    gridMove 30s linear infinite,
    starfield 20s linear infinite,
    circuitPulse 15s ease-in-out infinite;
  opacity: 0.8;
}

.page-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    /* 第二层网格 */
    linear-gradient(rgba(0, 128, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 128, 255, 0.05) 1px, transparent 1px),
    /* 更多星星 */
    radial-gradient(1px 1px at 50px 50px, #ffffff, transparent),
    radial-gradient(1px 1px at 100px 100px, #00ffff, transparent),
    radial-gradient(2px 2px at 150px 20px, #0080ff, transparent),
    radial-gradient(1px 1px at 200px 60px, #ffffff, transparent),
    radial-gradient(1px 1px at 250px 90px, #00ffff, transparent),
    /* 能量波纹 */
    radial-gradient(circle at 30% 30%, rgba(0, 255, 255, 0.2) 0%, transparent 70%),
    radial-gradient(circle at 70% 70%, rgba(0, 128, 255, 0.2) 0%, transparent 70%);
  background-size: 
    25px 25px,
    25px 25px,
    300px 120px,
    300px 120px,
    300px 120px,
    300px 120px,
    300px 120px,
    400px 400px,
    400px 400px;
  background-position: 
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0,
    0 0;
  animation: 
    gridMove 25s linear infinite reverse,
    starfield 15s linear infinite reverse,
    energyPulse 8s ease-in-out infinite;
  opacity: 0.6;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

@keyframes starfield {
  from { transform: translateY(0px); }
  to { transform: translateY(-100px); }
}

@keyframes circuitPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

@keyframes energyPulse {
  0%, 100% { 
    transform: scale(1);
    opacity: 0.2;
  }
  50% { 
    transform: scale(1.1);
    opacity: 0.5;
  }
}

/* 星链连接线效果 */
.star-links {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.star-link {
  position: absolute;
  background: linear-gradient(90deg, transparent, #00ffff, transparent);
  height: 1px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.star-link.active {
  opacity: 0.8;
}

/* 鼠标跟随效果 */
.page-header:hover .star-links .star-link {
  opacity: 0.3;
}

.page-header:hover .star-links .star-link.active {
  opacity: 1;
}

/* 响应式设计优化 */
@media (max-width: 768px) {
  .page-header::before,
  .page-header::after {
    background-size: 150px 80px;
    opacity: 0.4;
  }
  
  .page-title {
    font-size: 2.5rem;
  }
  
  .page-subtitle {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .page-header::before,
  .page-header::after {
    background-size: 100px 60px;
    opacity: 0.3;
  }
  
  .page-title {
    font-size: 2rem;
  }
  
  .page-subtitle {
    font-size: 1rem;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .page-header:hover .star-links .star-link {
    opacity: 0.1;
  }
  
  .page-header:hover .star-links .star-link.active {
    opacity: 0.5;
  }
}

.page-title {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
  color: #ffffff;
  text-shadow: 
    0 0 10px rgba(0, 255, 255, 0.8),
    0 0 20px rgba(0, 255, 255, 0.6),
    0 0 30px rgba(0, 255, 255, 0.4),
    0 0 40px rgba(0, 128, 255, 0.3);
  position: relative;
  z-index: 10;
  animation: titleGlow 3s ease-in-out infinite alternate;
}

.page-subtitle {
  font-size: 1.25rem;
  color: #e0e0e0;
  text-shadow: 
    0 0 5px rgba(0, 128, 255, 0.6),
    0 0 10px rgba(0, 128, 255, 0.4),
    0 0 15px rgba(0, 128, 255, 0.2);
  position: relative;
  z-index: 10;
  animation: subtitleGlow 4s ease-in-out infinite alternate;
}

@keyframes titleGlow {
  0% {
    text-shadow: 
      0 0 10px rgba(0, 255, 255, 0.8),
      0 0 20px rgba(0, 255, 255, 0.6),
      0 0 30px rgba(0, 255, 255, 0.4),
      0 0 40px rgba(0, 128, 255, 0.3);
  }
  100% {
    text-shadow: 
      0 0 15px rgba(0, 255, 255, 1),
      0 0 25px rgba(0, 255, 255, 0.8),
      0 0 35px rgba(0, 255, 255, 0.6),
      0 0 45px rgba(0, 128, 255, 0.5);
  }
}

@keyframes subtitleGlow {
  0% {
    text-shadow: 
      0 0 5px rgba(0, 128, 255, 0.6),
      0 0 10px rgba(0, 128, 255, 0.4),
      0 0 15px rgba(0, 128, 255, 0.2);
  }
  100% {
    text-shadow: 
      0 0 8px rgba(0, 128, 255, 0.8),
      0 0 15px rgba(0, 128, 255, 0.6),
      0 0 20px rgba(0, 128, 255, 0.4);
  }
}

/* 全局科技感背景 */
html {
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

body {
  background: 
    radial-gradient(circle at 10% 20%, rgba(0, 255, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 90% 80%, rgba(0, 128, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(138, 43, 226, 0.02) 0%, transparent 50%),
    linear-gradient(180deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* 公司故事 */
.company-story {
  padding: var(--space-xl) 0;
  position: relative;
  background-color: #ffffff;
}

.company-story::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(99, 102, 241, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.02) 1px, transparent 1px);
  background-size: 100px 100px;
  animation: subtleGridMove 60s linear infinite;
  pointer-events: none;
}

@keyframes subtleGridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(100px, 100px); }
}

.story-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.story-description {
  font-size: 1.125rem;
  color: #475569;
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.story-image {
  display: flex;
  justify-content: center;
}

.story-placeholder {
  width: 100%;
  max-width: 400px;
  overflow: hidden;
  border-radius: var(--radius);
}

.story-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
}

/* 使命愿景 */
.mission-vision {
  background-color: var(--accent-color);
  padding: var(--space-xl) 0;
  position: relative;
}

.mission-vision::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(0, 128, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 255, 255, 0.05) 0%, transparent 50%);
  animation: missionPulse 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes missionPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.mission-card {
  background: 
    linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 248, 255, 0.95) 100%);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.1),
    0 0 20px rgba(0, 128, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.mission-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 128, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.mission-card:hover::before {
  left: 100%;
}

.mission-card:hover {
  transform: translateY(-5px);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.15),
    0 0 30px rgba(0, 128, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.mission-icon {
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}

.mission-title {
  margin-bottom: var(--space-sm);
  color: var(--text-color);
}

.mission-description {
  color: var(--text-light);
  line-height: 1.6;
}

/* 团队介绍 */
.team {
  padding: var(--space-xl) 0;
  position: relative;
  background-color: #1e293b;
}

.team .section-title {
  color: #ffffff;
}

.team::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: teamGridMove 40s linear infinite;
  pointer-events: none;
}

@keyframes teamGridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(80px, 80px); }
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.team-member {
  background: 
    linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 248, 255, 0.95) 100%);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.1),
    0 0 20px rgba(0, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.team-member::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.team-member:hover::before {
  left: 100%;
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.15),
    0 0 30px rgba(0, 255, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.member-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.avatar-placeholder {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: bold;
}

.member-name {
  margin-bottom: var(--space-xs);
  color: var(--text-color);
}

.member-position {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.member-description {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 发展历程 */
.timeline {
  background-color: var(--accent-color);
  padding: var(--space-xl) 0;
}

.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--primary-color);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-year {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  font-weight: bold;
  position: relative;
  z-index: 2;
  min-width: 80px;
  text-align: center;
}

.timeline-content {
  background-color: var(--white);
  padding: var(--space-md);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 0 var(--space-md);
  flex: 1;
  max-width: 300px;
}

.timeline-title {
  margin-bottom: var(--space-xs);
  color: var(--text-color);
}

.timeline-description {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 服务概览 */
.services-overview {
  padding: var(--space-xl) 0;
  background-color: var(--accent-color);
}

.section-description {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto;
}

/* 详细服务 */
.services-detailed {
  padding: var(--space-xl) 0;
}

.service-detail {
  margin-bottom: var(--space-xl);
}

.service-detail-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.service-detail-content.reverse {
  direction: rtl;
}

.service-detail-content.reverse > * {
  direction: ltr;
}

.service-icon-large {
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}

.service-detail-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--text-color);
  text-align: center;
}

.service-detail-description {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.service-features {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.service-features li {
  padding: var(--space-xs) 0;
  color: var(--text-light);
  position: relative;
  padding-left: var(--space-md);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

.service-image-placeholder {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius);
}

.service-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
}

/* 服务流程 */
.service-process {
  background-color: var(--accent-color);
  padding: var(--space-xl) 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.process-step {
  text-align: center;
  background-color: var(--white);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.process-step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 0 auto var(--space-md);
}

.step-title {
  margin-bottom: var(--space-sm);
  color: var(--text-color);
}

.step-description {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 联系信息 */
.contact-info {
  padding: var(--space-xl) 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-details {
  background-color: var(--accent-color);
  padding: var(--space-lg);
  border-radius: var(--radius);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-lg);
}

.contact-icon {
  margin-right: var(--space-md);
  margin-top: var(--space-xs);
  flex-shrink: 0;
}

.contact-text h3 {
  margin-bottom: var(--space-xs);
  color: var(--text-color);
  font-size: 1.125rem;
}

.contact-text p {
  margin-bottom: var(--space-xs);
  color: var(--text-light);
}

/* 联系表单 */
.contact-form-container {
  background-color: var(--white);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  margin-bottom: var(--space-xs);
  color: var(--text-color);
  font-weight: 500;
}

.form-input,
.form-textarea {
  padding: var(--space-sm);
  border: 2px solid #e2e8f0;
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

.form-error.show {
  display: block;
}

/* 地图区域 */
.map-section {
  background-color: var(--accent-color);
  padding: var(--space-xl) 0;
}

.map-container {
  margin-top: var(--space-lg);
}

.map-placeholder {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow);
    padding: var(--space-md) 0;
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

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

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

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .social-links {
    justify-content: center;
  }

  .story-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .timeline-container::before {
    left: 20px;
  }

  .timeline-item {
    flex-direction: row !important;
    padding-left: 50px;
  }

  .timeline-year {
    position: absolute;
    left: 0;
    min-width: 40px;
    font-size: 0.8rem;
  }

  .timeline-content {
    margin: 0;
    max-width: none;
  }

  .service-detail-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .service-detail-content.reverse {
    direction: ltr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

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

  .qr-code-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    bottom: auto;
    margin-bottom: 0;
    max-width: 90vw;
  }

  .social-link-container:hover .qr-code-popup::after,
  .social-link-container:hover .qr-code-popup::before {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

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

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

  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}