/* 深圳东凯云启科技有限公司官网样式文件 */

/* ========================================
   CSS变量 - 设计系统
   ======================================== */

:root {
  /* 主色调 */
  --primary-color: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  
  /* 渐变色 */
  --gradient-primary: linear-gradient(135deg, #60a5fa, #a78bfa);
  --gradient-secondary: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-bg: linear-gradient(135deg, 
    rgba(15, 23, 42, 0.95) 0%, 
    rgba(30, 41, 59, 0.95) 50%, 
    rgba(15, 23, 42, 0.95) 100%);
  
  /* 背景色 */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  
  /* 文字色 */
  --text-primary: rgba(255, 255, 255, 0.9);
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  
  /* 边框色 */
  --border-color: rgba(99, 102, 241, 0.2);
  --border-hover: rgba(99, 102, 241, 0.5);
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
  
  /* 字体家族 */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", 
                  "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 
                  sans-serif;
  
  /* 字体大小 */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;
  --font-size-4xl: 64px;
  
  /* 字重 */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* 行高 */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.8;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 48px;
  --spacing-4xl: 64px;
  --spacing-5xl: 96px;
  
  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* 过渡 */
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   全局样式
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

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

/* ========================================
   动画定义
   ======================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
  }
}

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

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

.animate-in {
  animation: fadeIn 0.8s ease-out forwards;
}

/* ========================================
   工具类
   ======================================== */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}


/* ========================================
   导航栏样式
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: var(--gradient-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo-image {
  height: 50px;
  width: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

/* 移动端logo调整 */
@media (max-width: 768px) {
  .logo-image {
    height: 40px;
  }
  
  .logo-text {
    font-size: var(--font-size-lg);
  }
}

.nav-menu {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: center;
}

.nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  position: relative;
  padding: var(--spacing-sm) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-base);
  transform: translateX(-50%);
}

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

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

.mobile-menu-toggle {
  display: none;
  font-size: var(--font-size-2xl);
  color: var(--text-primary);
  padding: var(--spacing-sm);
}

/* 移动端导航 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--gradient-bg);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-3xl) var(--spacing-xl);
    gap: var(--spacing-xl);
    transition: left 0.3s ease;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    font-size: var(--font-size-lg);
    width: 100%;
    text-align: center;
    padding: var(--spacing-lg);
  }
}


/* ========================================
   Hero区域样式
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(ellipse at top, 
    rgba(15, 23, 42, 1) 0%, 
    rgba(30, 41, 59, 1) 50%, 
    rgba(15, 23, 42, 1) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    linear-gradient(135deg, transparent 0%, rgba(99, 102, 241, 0.03) 50%, transparent 100%),
    radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(167, 139, 250, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

#particles {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--spacing-xl);
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xl);
  animation: fadeIn 1s ease-out 0.2s backwards;
  text-shadow: 0 0 40px rgba(99, 102, 241, 0.5),
               0 0 80px rgba(99, 102, 241, 0.3);
  letter-spacing: 1px;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #ec4899, #60a5fa);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-lg);
  animation: fadeIn 1s ease-out 0.4s backwards, gradientShift 5s ease infinite;
  text-shadow: 0 0 60px rgba(99, 102, 241, 0.8);
  letter-spacing: 2px;
  position: relative;
}

.hero-subtitle::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(20px);
  opacity: 0.7;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-3xl);
  animation: fadeIn 1s ease-out 0.6s backwards;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeIn 1s ease-out 0.8s backwards;
}

.cta-button {
  position: relative;
  padding: var(--spacing-lg) var(--spacing-3xl);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: #fff;
  overflow: hidden;
  transition: var(--transition-base);
  border: 2px solid transparent;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.cta-button.primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4),
              0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.cta-button.secondary {
  background: rgba(15, 23, 42, 0.8);
  border: 2px solid rgba(99, 102, 241, 0.5);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.2),
              0 0 0 1px rgba(99, 102, 241, 0.2) inset;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.3), 
    transparent);
  transition: left 0.6s;
}

.cta-button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover::after {
  width: 300px;
  height: 300px;
}

.cta-button:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 16px 48px rgba(99, 102, 241, 0.6),
              0 0 80px rgba(99, 102, 241, 0.3);
}

.cta-button.secondary:hover {
  border-color: rgba(99, 102, 241, 0.8);
  background: rgba(99, 102, 241, 0.1);
  box-shadow: 0 16px 48px rgba(99, 102, 241, 0.4),
              0 0 80px rgba(99, 102, 241, 0.2);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-3xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  z-index: 2;
}

.scroll-arrow {
  font-size: var(--font-size-xl);
  animation: bounce 2s infinite;
  margin-top: var(--spacing-sm);
}

/* 响应式 */
@media (max-width: 768px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cta-button {
    width: 100%;
  }
}


/* ========================================
   业务区域通用样式
   ======================================== */

.business-section {
  position: relative;
  background: var(--bg-primary);
  padding: var(--spacing-5xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #ec4899);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
  position: relative;
  letter-spacing: 1px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

/* ========================================
   C端业务区域样式
   ======================================== */

.c-business {
  background: linear-gradient(180deg, 
    var(--bg-primary) 0%, 
    var(--bg-secondary) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-4xl);
}

.feature-card {
  background: linear-gradient(135deg, 
    rgba(15, 23, 42, 0.95) 0%, 
    rgba(30, 41, 59, 0.95) 100%);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3xl);
  text-align: center;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, 
    rgba(99, 102, 241, 0.1) 0%, 
    transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
}

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

.feature-card:hover::after {
  opacity: 1;
}

.feature-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.4),
              0 0 80px rgba(99, 102, 241, 0.2);
  border-color: var(--border-hover);
  background: linear-gradient(135deg, 
    rgba(30, 41, 59, 0.95) 0%, 
    rgba(15, 23, 42, 0.95) 100%);
}

.feature-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

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

.platform-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-3xl);
  margin-top: var(--spacing-4xl);
}

.platform-item {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition-base);
}

.platform-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.platform-image {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.qrcode-item {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(139, 92, 246, 0.1) 100%);
  border: 2px solid rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: visible;
}

.qrcode-item::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  border-radius: var(--radius-lg);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: -1;
}

.qrcode-item:hover::before {
  opacity: 0.3;
  animation: borderGlow 2s infinite;
}

@keyframes borderGlow {
  0%, 100% {
    filter: blur(10px);
  }
  50% {
    filter: blur(20px);
  }
}

.qrcode-wrapper {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qrcode {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-lg);
  background: #ffffff;
  padding: var(--spacing-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3),
              0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: var(--transition-base);
  position: relative;
  z-index: 2;
}

.qrcode-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, 
    rgba(99, 102, 241, 0.4) 0%, 
    transparent 70%);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
  z-index: 1;
}

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

.qrcode-item:hover .qrcode {
  transform: scale(1.05) rotate(2deg);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.4),
              0 0 80px rgba(99, 102, 241, 0.3);
}

.mini-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.2), 
    rgba(139, 92, 246, 0.2));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-light);
  margin-top: var(--spacing-md);
}

.badge-icon {
  font-size: var(--font-size-lg);
}

.platform-info h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.platform-info p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.platform-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-2xl);
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  background-size: 200% 200%;
  color: #fff;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.platform-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.3), 
    transparent);
  transition: left 0.5s;
}

.platform-link::after {
  content: '→';
  font-size: var(--font-size-lg);
  transition: transform 0.3s;
}

.platform-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5),
              0 0 60px rgba(99, 102, 241, 0.3);
  background-position: 100% 50%;
}

.platform-link:hover::before {
  left: 100%;
}

.platform-link:hover::after {
  transform: translateX(4px);
}

/* ========================================
   B端业务区域样式
   ======================================== */

.b-business {
  background: var(--bg-secondary);
}

.differentiation {
  margin-bottom: var(--spacing-4xl);
}

.diff-intro {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-3xl);
  font-style: italic;
}

.differentiation h3,
.capabilities h3,
.use-cases h3,
.product-versions h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
  padding-bottom: var(--spacing-lg);
}

.differentiation h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.diff-item {
  background: linear-gradient(135deg, 
    rgba(15, 23, 42, 0.95) 0%, 
    rgba(30, 41, 59, 0.95) 100%);
  backdrop-filter: blur(20px);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.diff-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.diff-item:hover::before {
  opacity: 1;
}

.diff-item.highlight {
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.3),
              0 0 0 1px rgba(99, 102, 241, 0.1) inset;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(15, 23, 42, 0.95) 50%,
    rgba(139, 92, 246, 0.1) 100%);
}

.diff-item.highlight::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  border-radius: var(--radius-xl);
  z-index: -1;
  opacity: 0.3;
  filter: blur(20px);
  animation: borderPulse 3s ease-in-out infinite;
}

@keyframes borderPulse {
  0%, 100% {
    opacity: 0.3;
    filter: blur(20px);
  }
  50% {
    opacity: 0.6;
    filter: blur(30px);
  }
}

.diff-item:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 24px 60px rgba(99, 102, 241, 0.5),
              0 0 100px rgba(99, 102, 241, 0.3);
  border-color: var(--primary-light);
}

.diff-icon {
  font-size: var(--font-size-3xl);
  display: block;
  margin-bottom: var(--spacing-lg);
}

.diff-icon-wrapper {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.05);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

.diff-item:hover .diff-icon-wrapper {
  background: rgba(99, 102, 241, 0.15);
  transform: scale(1.1);
}

.diff-icon-svg {
  width: 48px;
  height: 48px;
  filter: drop-shadow(0 4px 8px rgba(99, 102, 241, 0.3));
}

.diff-item h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--primary-light);
}

.diff-item p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

.diff-detail {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-style: italic;
}

.capabilities {
  margin-bottom: var(--spacing-4xl);
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.capability-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition-base);
}

.capability-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
  border-color: var(--border-hover);
}

.capability-icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.capability-card h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.capability-card p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
}

.use-cases {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-4xl);
}

.cases-list {
  display: grid;
  gap: var(--spacing-xl);
  max-width: 800px;
  margin: 0 auto;
}

.case-item {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: var(--transition-base);
}

.case-item:hover {
  transform: translateX(8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.case-number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.case-item h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

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

.contact-cta {
  text-align: center;
  margin-top: var(--spacing-4xl);
}

/* 响应式 */
@media (max-width: 768px) {
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .features-grid,
  .diff-grid,
  .capabilities-grid {
    grid-template-columns: 1fr;
  }
  
  .platform-showcase {
    grid-template-columns: 1fr;
  }
  
  .case-item {
    flex-direction: column;
    text-align: center;
  }
}


/* ========================================
   页脚样式
   ======================================== */

.footer {
  background: var(--gradient-bg);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

.domain {
  color: var(--primary-light);
  font-weight: var(--font-weight-medium);
}

.quick-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.quick-links a {
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.quick-links a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.contact-label {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.contact-info a {
  color: var(--primary-light);
  font-weight: var(--font-weight-medium);
}

.contact-info a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-xl);
}

.footer-legal {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  text-align: center;
}

.footer-legal p {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-sm);
}

.copyright {
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary) !important;
}

.icp a {
  color: var(--text-muted);
  transition: var(--transition-base);
}

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

/* ========================================
   联系方式弹窗样式
   ======================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
}

.modal-content {
  position: relative;
  z-index: 1;
  background: var(--gradient-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3xl);
  max-width: 500px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: scaleIn 0.3s ease-out;
}

.modal-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  font-size: var(--font-size-2xl);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.modal-content h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.contact-item:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.contact-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.contact-item .contact-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-xs);
}

.contact-item a {
  font-size: var(--font-size-lg);
  color: var(--primary-light);
  font-weight: var(--font-weight-medium);
}

.contact-item a:hover {
  text-decoration: underline;
}

/* ========================================
   返回顶部按钮样式
   ======================================== */

.back-to-top {
  position: fixed;
  bottom: var(--spacing-2xl);
  right: var(--spacing-2xl);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xl);
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  z-index: 999;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.back-to-top.visible {
  display: flex;
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5);
  animation: glow 1.5s infinite;
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .footer-section {
    text-align: center;
  }
  
  .quick-links ul {
    align-items: center;
  }
  
  .modal-content {
    padding: var(--spacing-2xl);
  }
  
  .back-to-top {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 480px) {
  .contact-item {
    flex-direction: column;
    text-align: center;
  }
}


/* ========================================
   产品版本样式
   ======================================== */

.product-versions {
  margin-bottom: var(--spacing-4xl);
}

.versions-intro {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-md) var(--spacing-xl);
  background: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--primary-color);
  border-radius: var(--radius-md);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-2xl);
}

.versions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.version-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.version-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition-base);
}

.version-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.3);
}

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

.version-card.featured:hover {
  border: 2px solid var(--primary-color);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.4);
}

.version-card.featured:hover::before {
  opacity: 1;
  height: 4px;
}

.version-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-lg);
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--primary-light);
  margin-bottom: var(--spacing-lg);
  transition: all 0.3s ease;
}

.version-card:hover .version-badge {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.version-badge.popular {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.version-card h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

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

.version-features li {
  padding: var(--spacing-sm) 0;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.version-features li:last-child {
  border-bottom: none;
}

.version-suitable {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(99, 102, 241, 0.1);
}

/* 响应式 */
@media (max-width: 768px) {
  .versions-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   B端业务 - 业务概览
   =================================== */

.business-overview {
  margin-bottom: 4rem;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.overview-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
}

.overview-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.overview-card.highlight-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
  border: 2px solid rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: hidden;
}

.overview-card.highlight-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(99, 102, 241, 0.1), transparent);
  animation: shimmer 3s infinite;
}

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

.overview-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: inline-block;
}
.overview-icon img {
  width: 3rem;
  height: 3rem;
  display: inline-block;
}
.overview-icon img.robot-icon {
  width: 4.25rem;
  height: 4.25rem;
  animation: floatPulse 6s ease-in-out infinite;
  filter: drop-shadow(0 0 8px var(--primary-alpha-40));
  will-change: transform;
}
.overview-card:hover .overview-icon img.robot-icon {
  transform: scale(1.08);
  filter: drop-shadow(0 0 14px var(--primary-alpha-60));
}
@keyframes floatPulse {
  0% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0); }
}

.overview-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #fff;
}

.overview-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 20px;
  font-size: 0.85rem;
  color: #a78bfa;
  margin-bottom: 1rem;
}

.overview-card p:last-child {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

/* ===================================
   AI知识库 - 核心亮点区域
   =================================== */

.featured-product {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(168, 85, 247, 0.05));
  border: 2px solid rgba(99, 102, 241, 0.2);
  border-radius: 20px;
  padding: 3rem;
  margin-bottom: 4rem;
}

.featured-header {
  text-align: center;
  margin-bottom: 3rem;
}

.featured-badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: linear-gradient(135deg, #6366f1, #a855f7);
  color: #fff;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.featured-header h3 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: #fff;
}

.featured-subtitle {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
}

/* ===================================
   软件开发服务
   =================================== */

.software-development {
  margin-bottom: 4rem;
  padding: 3rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.software-development h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #fff;
  text-align: center;
}

.service-intro {
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}

.dev-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.dev-service-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.dev-service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.dev-service-card .service-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.dev-service-card h4 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #fff;
}

.service-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.service-list li {
  padding: 0.5rem 0;
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  padding-left: 1.5rem;
}

.service-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #6366f1;
  font-weight: bold;
}

.tech-stack {
  font-size: 0.85rem;
  color: rgba(99, 102, 241, 0.8);
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 500;
}

/* ===================================
   设计服务
   =================================== */

.design-services {
  margin-bottom: 4rem;
  padding: 3rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.design-services h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #fff;
  text-align: center;
}

.design-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.design-service-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.design-service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(168, 85, 247, 0.5);
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.2);
}

.design-service-card .service-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.design-service-card h4 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #fff;
}

/* ===================================
   技术栈展示
   =================================== */

.tech-stack-showcase {
  margin-bottom: 3rem;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(168, 85, 247, 0.05));
  border-radius: 20px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.tech-stack-showcase h3 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #fff;
  text-align: center;
}

.tech-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.tech-category h4 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: #fff;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(99, 102, 241, 0.3);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tech-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 20px;
  color: #a78bfa;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.tech-tag:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.5);
  transform: translateY(-2px);
}

/* ===================================
   响应式设计 - 新增内容
   =================================== */

@media (max-width: 768px) {
  .overview-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .featured-product {
    padding: 2rem 1.5rem;
  }
  
  .featured-header h3 {
    font-size: 1.5rem;
  }
  
  .software-development,
  .design-services,
  .tech-stack-showcase {
    padding: 2rem 1.5rem;
  }
  
  .dev-services-grid,
  .design-services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .tech-categories {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .overview-card h3 {
    font-size: 1.3rem;
  }
  
  .overview-icon {
    font-size: 2.5rem;
  }
  
  .featured-header h3 {
    font-size: 1.3rem;
  }
  
  .software-development h3,
  .design-services h3 {
    font-size: 1.5rem;
  }
  
  .service-intro {
    font-size: 1rem;
  }
  
  .dev-services-grid,
  .design-services-grid {
    grid-template-columns: 1fr;
  }
}