/* ===== 重庆分权科技 - 现代化科技风格样式 ===== */

/* 基础重置和变量 */
:root {
  /* 主色调 - 科技蓝紫渐变 */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #8b5cf6;
  --secondary-color: #06b6d4;
  --accent-color: #f59e0b;
  
  /* 背景色 */
  --bg-dark: #0f0f23;
  --bg-darker: #0a0a1a;
  --bg-light: #1a1a2e;
  --light-bg: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(255, 255, 255, 0.1);
  
  /* 文字颜色 */
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --text-accent: #06b6d4;
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-dark: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
  
  /* 边框半径 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* 动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* 字体 */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* 通用工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-padding {
  padding: var(--space-2xl) 0;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 35, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(15, 15, 35, 0.95);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
}

.logo-icon {
  width: 129px;
  height: 37px;
  background: transparent;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(1.1) contrast(1.05);
}

.logo-icon::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: rotate(45deg);
  animation: logoShine 4s infinite;
}

@keyframes logoShine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
  100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: var(--transition-normal);
  padding: var(--space-xs) 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

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



/* 移动端菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  transition: var(--transition-normal);
  border-radius: 2px;
}

.menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* 主要内容区域 */
main {
  margin-top: 80px;
}

/* 页面头部 */
.page-header {
  position: relative;
  padding: var(--space-2xl) 0;
  background: var(--gradient-dark);
  overflow: hidden;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 50%);
  pointer-events: none;
}

.page-header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

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

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
}



/* 京东收银功能卡片样式 */
.jd-feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.jd-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

.jd-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: white;
  font-size: 1.5rem;
}

/* 京东收银产品展示样式 */
.jd-product-item {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: var(--transition-normal);
}

.jd-product-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

.jd-product-item img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
}

.jd-product-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.jd-product-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 联系我们页面样式优化 */
.quick-contact {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.quick-contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: #333;
  transition: var(--transition-normal);
  min-width: 120px;
}

.quick-contact-item:hover {
  transform: translateY(-5px);
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-lg);
  color: var(--primary-color);
}

.quick-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.quick-contact-item span {
  color: inherit;
  font-weight: 600;
  font-size: 0.9rem;
}

.contact-methods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.contact-method-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.contact-method-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.method-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  color: white;
  font-size: 2rem;
  position: relative;
}

.icon-pulse {
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

.contact-method-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: #333;
}

.contact-method-card p {
  color: #666;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.method-info {
  margin-bottom: var(--space-lg);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
}

.info-item .label {
  color: #888;
  font-size: 0.9rem;
}

.info-item .value {
  color: #333;
  font-weight: 600;
  text-decoration: none;
}

.info-item .value:hover {
  color: var(--primary-color);
}

.method-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.method-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.wechat-qr {
  position: relative;
}

.qr-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-darker);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: 10;
  margin-bottom: var(--space-sm);
}

.wechat-qr:hover .qr-tooltip {
  opacity: 1;
  visibility: visible;
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.qr-placeholder i {
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.qr-placeholder p {
  font-size: 0.8rem;
  margin: 0;
}

/* 联系表单样式 */
.contact-form-section {
  background: var(--bg-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.contact-info-panel {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.contact-form-panel {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.form-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.form-header p {
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.required {
  color: #f59e0b;
}

.form-section {
  margin-bottom: var(--space-xl);
}

.form-section .section-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.input-group {
  position: relative;
}

.input-icon {
  position: absolute;
  left: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  z-index: 1;
}

.input-group input,
.textarea-group textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-sm) var(--space-sm) 2.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition-normal);
}

.textarea-group textarea {
  padding-left: var(--space-sm);
  resize: vertical;
  min-height: 120px;
}

.input-group input:focus,
.textarea-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input-group input::placeholder,
.textarea-group textarea::placeholder {
  color: var(--text-muted);
}

.select-group {
  position: relative;
}

.select-group select {
  width: 100%;
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  appearance: none;
  cursor: pointer;
  transition: var(--transition-normal);
}

.select-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.select-icon {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.textarea-counter {
  text-align: right;
  margin-top: var(--space-xs);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.submit-btn {
  width: 100%;
  padding: var(--space-md);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-loading {
  display: none;
}

.submit-btn.loading .btn-text {
  display: none;
}

.submit-btn.loading .btn-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}

.btn-loading i {
  animation: spin 1s linear infinite;
}

/* 联系我们页面额外样式 */
.contact-detail-list {
  margin-bottom: var(--space-xl);
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}

.contact-detail-item:hover {
  background: rgba(99, 102, 241, 0.1);
  transform: translateX(5px);
}

.detail-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.detail-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.detail-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

.detail-content a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.detail-content a:hover {
  text-decoration: underline;
}

.phone-note,
.email-note,
.time-note {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.response-guarantee {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.guarantee-icon {
  width: 40px;
  height: 40px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.guarantee-text h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.guarantee-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

.social-links-section {
  margin-top: var(--space-xl);
}

.social-links-section h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.social-links-section .social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links-section .social-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-normal);
}

.social-links-section .social-link:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.3);
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* 复选框样式 */
.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  cursor: pointer;
}

.checkbox-container input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  position: relative;
  flex-shrink: 0;
  transition: var(--transition-normal);
}

.checkbox-container input[type="checkbox"]:checked + .checkmark {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.checkbox-container input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.checkbox-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.policy-link {
  color: var(--primary-color);
  text-decoration: none;
}

.policy-link:hover {
  text-decoration: underline;
}

.agreement-section {
  margin-bottom: var(--space-xl);
}

.form-message {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: center;
  display: none;
}

.form-message.success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

.form-message.error {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}

/* 地图和位置信息样式 */
.map-section {
  padding: var(--space-2xl) 0;
  background: var(--bg-light);
}

.map-container {
  margin-bottom: var(--space-2xl);
}

.map-placeholder {
  height: 400px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
}

.map-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-primary);
}

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

.map-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.map-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.map-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.map-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition-normal);
}

.map-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.location-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.location-info-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: var(--transition-normal);
}

.location-info-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

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

.location-info-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: #333;
}

.location-info-card p {
  color: #666;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.info-tags {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.info-tag {
  padding: var(--space-xs) var(--space-sm);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-sm);
  color: var(--primary-color);
  font-size: 0.8rem;
  font-weight: 600;
}

/* 卡片样式 */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

/* 网格布局 */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .menu-toggle {
    display: flex;
  }

  .logo-icon {
    width: 100px;
    height: 29px;
  }

  .container {
    padding: 0 var(--space-sm);
  }

  .page-header {
    min-height: 50vh;
    padding: var(--space-xl) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --space-xl: 2rem;
    --space-2xl: 3rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .page-header p {
    font-size: 1rem;
  }
}

/* ===== 首页特殊样式 ===== */

/* Hero区域 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--bg-dark);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.2) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-lg);
  color: var(--text-accent);
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.hero-badge::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.2), transparent);
  animation: badgeShine 3s infinite;
}

@keyframes badgeShine {
  0% { left: -100%; }
  50% { left: 100%; }
  100% { left: -100%; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero-title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.metric-item {
  text-align: center;
  padding: var(--space-md);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 120px;
}

.metric-item:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.3);
}

.metric-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-mono);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-xs);
  min-width: 4ch;
  text-align: center;
  letter-spacing: 0.05em;
}

.metric-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

/* 粒子动画背景 */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--primary-color);
  border-radius: 50%;
  opacity: 0.6;
  animation: float 6s infinite ease-in-out;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.6; }
  50% { transform: translateY(-20px) rotate(180deg); opacity: 1; }
}

/* 服务区域 */
.services {
  background: var(--bg-light);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(45deg, transparent 49%, rgba(99, 102, 241, 0.1) 50%, transparent 51%),
    linear-gradient(-45deg, transparent 49%, rgba(139, 92, 246, 0.1) 50%, transparent 51%);
  background-size: 60px 60px;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xs) var(--space-md);
  margin-bottom: var(--space-md);
  color: var(--text-accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.service-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition-normal);
}

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

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  color: white;
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

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

.service-features li {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.service-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: var(--transition-normal);
}

.service-link:hover {
  color: var(--primary-light);
  transform: translateX(5px);
}

/* 关于我们页面样式 */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-2xl);
}

.about-text h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.about-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.about-highlights {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
}

.highlight-item:hover {
  transform: translateX(10px);
  border-color: rgba(99, 102, 241, 0.3);
}

.highlight-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.highlight-content h4 {
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.highlight-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-orbit {
  position: relative;
  width: 300px;
  height: 300px;
  border: 2px solid rgba(99, 102, 241, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: rotate 20s linear infinite;
}

.tech-orbit::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border: 2px solid transparent;
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: rotate 10s linear infinite reverse;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.tech-center {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  position: relative;
  z-index: 2;
}

.tech-dot {
  position: absolute;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1rem;
}

.tech-dot:nth-child(2) { top: -20px; left: 50%; transform: translateX(-50%); }
.tech-dot:nth-child(3) { right: -20px; top: 50%; transform: translateY(-50%); }
.tech-dot:nth-child(4) { bottom: -20px; left: 50%; transform: translateX(-50%); }
.tech-dot:nth-child(5) { left: -20px; top: 50%; transform: translateY(-50%); }

/* 联系页面样式 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.contact-info {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}

.contact-item:hover {
  transform: translateX(5px);
  background: rgba(99, 102, 241, 0.1);
}

.contact-item i {
  color: var(--primary-color);
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-item span,
.contact-item a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.5;
}

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

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.contact-details p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

.contact-details a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-normal);
}

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

/* 表单样式 */
.contact-form {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-sm);
  background: var(--bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-primary);
  transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.submit-btn {
  width: 100%;
  padding: var(--space-md);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.submit-btn::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: var(--transition-normal);
}

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

/* FAQ常见问题样式 */
.faq-section {
  padding: var(--space-2xl) 0;
  background: var(--bg-light);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-md);
}

.faq-item.active {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: var(--shadow-lg);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: var(--transition-normal);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}

.faq-question:hover {
  background: rgba(99, 102, 241, 0.05);
}

.faq-item.active .faq-question {
  background: rgba(99, 102, 241, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.question-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.faq-question h4 {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.4;
}

.toggle-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.active .toggle-icon {
  transform: rotate(180deg);
  color: var(--primary-color);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background: rgba(255, 255, 255, 0.02);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 var(--space-lg) var(--space-lg);
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul {
  list-style: none;
  margin: var(--space-md) 0;
  padding: 0;
}

.faq-answer li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-answer li::before {
  content: '•';
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: -2px;
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 页脚样式 */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-2xl) 0 var(--space-lg);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.footer-section h4 {
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

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

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

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

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

.social-link {
  width: 40px;
  height: 40px;
  background: var(--bg-glass);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-normal);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: var(--primary-color);
  text-decoration: none;
}

/* 加载动画 */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

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

.loading-logo {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(99, 102, 241, 0.3);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition-normal);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* 滚动进度条 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-primary);
  z-index: 1001;
  transition: width 0.1s ease;
}

/* 动画类 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 特殊效果 */
.glow-effect {
  position: relative;
}

.glow-effect::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  z-index: -1;
  opacity: 0;
  transition: var(--transition-normal);
}

.glow-effect:hover::before {
  opacity: 0.7;
  filter: blur(10px);
}

/* 响应式调整 */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

@media (max-width: 768px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .faq-question {
    padding: var(--space-md);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .faq-question h4 {
    font-size: 1rem;
    line-height: 1.3;
  }

  .question-icon {
    width: 32px;
    height: 32px;
    font-size: 1rem;
  }

  .faq-item.active .faq-answer {
    padding: 0 var(--space-md) var(--space-md);
  }

  .tech-orbit {
    width: 250px;
    height: 250px;
  }
}

@media (max-width: 480px) {
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .metric-item {
    padding: var(--space-sm);
  }

  .metric-number {
    font-size: 1.5rem;
    min-width: 3ch;
  }

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

  .back-to-top {
    bottom: var(--space-md);
    right: var(--space-md);
    width: 45px;
    height: 45px;
  }
}