/* 口播印刷机官网 - 主样式文件 */

/* CSS变量定义 */
:root {
  /* 主色调 - AIGC科技感配色 */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  
  /* 渐变色 */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-tech: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  
  /* 中性色 */
  --dark-bg: #0f172a;
  --dark-card: #1e293b;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --white: #ffffff;
  --light-bg: #f8fafc;
  
  /* 间距 */
  --section-padding: 80px 0;
  --container-padding: 0 20px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* 动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--white);
  overflow-x: hidden;
}

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

.container-fluid {
  padding: var(--container-padding);
}

/* 通用类 */
.section {
  padding: var(--section-padding);
}

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

.btn-gradient {
  background: var(--gradient-primary);
  border: none;
  color: white;
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
}

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

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
  padding: 10px 30px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: var(--transition-normal);
}

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

/* 卡片样式 */
.card-modern {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
}

.card-modern:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* 标题样式 */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 导航栏 */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  padding: 1rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

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

.navbar-brand img {
  height: 40px;
  margin-right: 12px;
}

.navbar-nav-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 0.5rem;
}

.nav-item {
  margin: 0 1rem;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

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

/* Hero区域 - 全新现代化设计 */
.hero-new {
  position: relative;
  min-height: 100vh;
  background: #000;
  color: white;
  overflow: hidden;
  display: flex;
  align-items: center;
}

/* 背景层系统 */
.hero-bg-layers {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

/* 主背景渐变 */
.bg-gradient-main {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center,
    rgba(99, 102, 241, 0.15) 0%,
    rgba(139, 92, 246, 0.1) 25%,
    rgba(59, 130, 246, 0.05) 50%,
    rgba(0, 0, 0, 0.9) 100%);
}

/* 动态网格背景 */
.bg-grid-pattern {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
  opacity: 0.3;
}

/* 浮动几何图形 */
.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(45deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.1));
  filter: blur(1px);
  animation: shapeFloat 15s ease-in-out infinite;
}

.shape-1 {
  width: 120px;
  height: 120px;
  top: 10%;
  left: 5%;
  animation-delay: 0s;
}

.shape-2 {
  width: 80px;
  height: 80px;
  top: 70%;
  right: 10%;
  animation-delay: 3s;
}

.shape-3 {
  width: 60px;
  height: 60px;
  top: 30%;
  right: 30%;
  animation-delay: 6s;
}

.shape-4 {
  width: 100px;
  height: 100px;
  bottom: 20%;
  left: 20%;
  animation-delay: 9s;
}

.shape-5 {
  width: 40px;
  height: 40px;
  top: 50%;
  left: 70%;
  animation-delay: 12s;
}

/* 光效粒子 */
.light-particles {
  position: absolute;
  width: 100%;
  height: 100%;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, transparent 70%);
  border-radius: 50%;
  animation: particleFloat 25s linear infinite;
}

.particle-1 { top: 20%; left: 10%; animation-delay: 0s; }
.particle-2 { top: 60%; left: 80%; animation-delay: 4s; }
.particle-3 { top: 80%; left: 30%; animation-delay: 8s; }
.particle-4 { top: 40%; left: 60%; animation-delay: 12s; }
.particle-5 { top: 10%; left: 90%; animation-delay: 16s; }
.particle-6 { top: 90%; left: 70%; animation-delay: 20s; }

/* Hero内容区域 */
.hero-content-new {
  position: relative;
  z-index: 10;
  padding: 2rem 0;
}

/* 顶部标签 */
.hero-badge-new {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 50px;
  padding: 0.75rem 1.5rem;
  margin-bottom: 2rem;
  overflow: hidden;
}

.badge-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.1));
  border-radius: 50px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-badge-new:hover .badge-glow {
  opacity: 1;
}

.badge-icon {
  font-size: 1.2rem;
  z-index: 2;
}

.badge-text {
  font-weight: 600;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  z-index: 2;
}

.badge-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: rgba(99, 102, 241, 0.3);
  border-radius: 50px;
  transform: translate(-50%, -50%);
  animation: badgePulse 3s ease-in-out infinite;
}

/* 主标题 */
.hero-title-new {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.title-line-1, .title-line-2 {
  display: block;
}

.text-gradient-new {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease-in-out infinite;
}

.highlight-text {
  position: relative;
  color: #fff;
}

.highlight-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
  animation: highlightGlow 2s ease-in-out infinite;
}

/* 描述文字 */
.hero-description-new {
  font-size: 1.25rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 3rem;
  max-width: 500px;
}

.text-highlight {
  color: #667eea;
  font-weight: 600;
}

/* 核心优势 */
.hero-advantages {
  margin-bottom: 3rem;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.advantage-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(10px);
}

.advantage-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.advantage-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: white;
}

.advantage-content p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* 行动按钮 */
.hero-actions {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.btn-primary-new {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  overflow: hidden;
  border: none;
}

.btn-primary-new:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.4);
  color: white;
}

.btn-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary-new:hover .btn-glow {
  opacity: 1;
}

.btn-secondary-new {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  padding: 1rem 2rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-secondary-new:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
}

/* 数据统计 */
.hero-stats-new {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.5rem 0;
}

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

.stat-number-new {
  font-size: 2.5rem;
  font-weight: 800;
  color: #667eea;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-unit {
  font-size: 1.5rem;
  margin-left: 0.25rem;
}

.stat-label-new {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

/* 右侧视觉区域 */
.hero-visual-new {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-showcase {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: 500px;
}

/* 中央主屏幕 */
.main-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 350px;
  height: 250px;
  z-index: 5;
}

.screen-frame {
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 20px;
  padding: 15px;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.screen-content {
  width: 100%;
  height: 100%;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.video-preview {
  width: 100%;
  height: 100%;
  position: relative;
  cursor: pointer;
}

.video-poster {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.video-poster img {
  width: 80px;
  height: 80px;
  opacity: 0.8;
}

.play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.play-btn-large {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #667eea;
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
}

.play-btn-large:hover {
  background: white;
  transform: scale(1.1);
}

.play-ripple {
  position: absolute;
  width: 60px;
  height: 60px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  animation: rippleEffect 2s ease-out infinite;
}

.screen-glow {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(118, 75, 162, 0.2));
  border-radius: 30px;
  filter: blur(20px);
  z-index: -1;
  animation: screenGlow 3s ease-in-out infinite;
}

/* 功能卡片群 */
.feature-cards-3d {
  position: absolute;
  width: 100%;
  height: 100%;
}

.feature-card-3d {
  position: absolute;
  width: 140px;
  height: 100px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.feature-card-3d:hover {
  transform: translateY(-10px) scale(1.05);
  background: rgba(255, 255, 255, 0.15);
}

.card-ai {
  top: 20px;
  left: 20px;
  animation: cardFloat 6s ease-in-out infinite;
}

.card-voice {
  top: 20px;
  right: 20px;
  animation: cardFloat 6s ease-in-out infinite 2s;
}

.card-video {
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  animation: cardFloat 6s ease-in-out infinite 4s;
}

.card-icon-3d {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  margin-bottom: 0.5rem;
}

.card-content-3d h5 {
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
  margin-bottom: 0.25rem;
}

.card-content-3d p {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.card-glow-3d {
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(118, 75, 162, 0.2));
  border-radius: 20px;
  filter: blur(10px);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card-3d:hover .card-glow-3d {
  opacity: 1;
}

/* 技术标签云 */
.tech-tags-cloud {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.tech-tag-item {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  animation: tagFloat 8s ease-in-out infinite;
  animation-delay: var(--delay);
}

.tech-tag-item:nth-child(1) { top: 10%; left: 10%; }
.tech-tag-item:nth-child(2) { top: 15%; right: 15%; }
.tech-tag-item:nth-child(3) { top: 70%; left: 5%; }
.tech-tag-item:nth-child(4) { bottom: 25%; right: 10%; }
.tech-tag-item:nth-child(5) { bottom: 10%; left: 30%; }
.tech-tag-item:nth-child(6) { top: 40%; right: 5%; }

/* 滚动指示器 */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  z-index: 10;
}

.scroll-text {
  font-size: 0.9rem;
  font-weight: 500;
}

.scroll-arrow {
  font-size: 1.5rem;
  animation: scrollBounce 2s ease-in-out infinite;
}

/* 动画定义 */
@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

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

@keyframes particleFloat {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}

@keyframes badgePulse {
  0%, 100% { opacity: 0; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.3; transform: translate(-50%, -50%) scale(1.1); }
}

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

@keyframes highlightGlow {
  0%, 100% { box-shadow: 0 0 5px rgba(102, 126, 234, 0.5); }
  50% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.8); }
}

@keyframes rippleEffect {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(2); opacity: 0; }
}

@keyframes screenGlow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes tagFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
  50% { transform: translateY(-10px) rotate(5deg); opacity: 1; }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .hero-title-new {
    font-size: 2.5rem;
  }

  .hero-description-new {
    font-size: 1.1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-stats-new {
    flex-direction: column;
    gap: 1rem;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
  }

  .visual-showcase {
    height: 400px;
  }

  .main-screen {
    width: 280px;
    height: 200px;
  }

  .feature-card-3d {
    width: 120px;
    height: 80px;
    padding: 0.75rem;
  }

  .advantage-item {
    margin-bottom: 1rem;
  }

  .advantage-item:hover {
    transform: none;
  }
}

/* 现代化功能模块样式 */
.features-modern {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.features-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e2e8f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 50px;
  padding: 0.75rem 1.5rem;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.badge-icon {
  font-size: 1.2rem;
}

.badge-text {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary-color);
}

.section-title-modern {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

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

.title-highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
}

.section-subtitle-modern {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 3rem;
}

/* 现代化演示部分 */
.demo-modern {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  position: relative;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.demo-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(226, 232, 240, 0.5);
}

.demo-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.demo-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.demo-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.demo-badge {
  background: linear-gradient(135deg, #f093fb, #f5576c);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.demo-card-content {
  padding: 1.5rem;
}

.demo-card-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.demo-card-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.demo-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.feature-tag {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary-color);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(102, 126, 234, 0.2);
}

.demo-video-container {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.demo-video {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  overflow: hidden;
}

.video-thumbnail {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-overlay-modern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.demo-video:hover .play-overlay-modern {
  background: rgba(0, 0, 0, 0.6);
}

.play-btn-modern {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
}

.demo-video:hover .play-btn-modern {
  background: white;
  transform: scale(1.1);
}

.play-text {
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
}

/* 演示统计 */
.demo-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 3rem 0;
  border-top: 1px solid rgba(226, 232, 240, 0.5);
}

.stat-card {
  text-align: center;
  padding: 2rem 1rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* 现代化定价部分 */
.pricing-modern {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.pricing-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="pricing-grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(99,102,241,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23pricing-grid)"/></svg>');
  opacity: 0.3;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
  position: relative;
  z-index: 2;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(102, 126, 234, 0.3);
}

.pricing-card.popular {
  border-color: rgba(102, 126, 234, 0.5);
  background: rgba(102, 126, 234, 0.1);
}

.popular-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: 2rem;
}

.plan-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin: 0 auto 1rem;
}

.pricing-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: white;
}

.pricing-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.pricing-price {
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}

.price-number {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.price-period {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 0.5rem;
}

.price-save {
  position: absolute;
  top: -10px;
  right: 0;
  background: linear-gradient(135deg, #f093fb, #f5576c);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.7rem;
  font-weight: 600;
}

.pricing-features {
  margin-bottom: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.5rem 0;
}

.feature-item i {
  font-size: 1.1rem;
  color: #4ade80;
}

.feature-item.disabled i {
  color: rgba(255, 255, 255, 0.3);
}

.feature-item span {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.feature-item.disabled span {
  color: rgba(255, 255, 255, 0.4);
}

.pricing-btn {
  width: 100%;
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.basic-btn {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.basic-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

.professional-btn {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
}

.professional-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.enterprise-btn {
  background: linear-gradient(135deg, #f093fb, #f5576c);
  color: white;
}

.enterprise-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(240, 147, 251, 0.4);
}

/* 算力充值部分 */
.compute-section {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 3rem 2rem;
  margin-bottom: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 2;
}

.compute-header {
  text-align: center;
  margin-bottom: 2rem;
}

.compute-header h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: white;
}

.compute-header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
}

.compute-packages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.compute-package {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.compute-package:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(102, 126, 234, 0.3);
}

.compute-package.popular {
  border-color: rgba(102, 126, 234, 0.5);
  background: rgba(102, 126, 234, 0.1);
}

.package-badge {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 15px;
  font-size: 0.7rem;
  font-weight: 600;
}

.package-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: #667eea;
  margin-bottom: 0.5rem;
}

.package-price {
  font-size: 2rem;
  font-weight: 800;
  color: white;
  margin-bottom: 0.5rem;
}

.package-desc {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.compute-action {
  text-align: center;
}

/* 保障信息 */
.guarantee-section {
  position: relative;
  z-index: 2;
}

.guarantee-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.guarantee-item i {
  font-size: 1.2rem;
  color: #4ade80;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .pricing-card {
    padding: 1.5rem;
  }

  .price-number {
    font-size: 2.5rem;
  }

  .compute-packages {
    grid-template-columns: 1fr;
  }

  .guarantee-items {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .guarantee-item {
    justify-content: flex-start;
  }
}

/* Hero内容样式 */
.hero-content {
  position: relative;
  z-index: 2;
  text-align: left;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  padding: 0.5rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  animation: badgeGlow 2s ease-in-out infinite alternate;
}

.badge-text {
  background: linear-gradient(45deg, #60a5fa, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(45deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 0.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-features {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.feature-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-normal);
}

.feature-tag:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.feature-tag i {
  font-size: 1rem;
  color: #60a5fa;
}

/* Hero视觉效果 */
.hero-visual {
  position: relative;
  z-index: 2;
}

.visual-container {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 1.5rem;
  width: 200px;
  animation: cardFloat 6s ease-in-out infinite;
  transition: var(--transition-normal);
}

.floating-card:hover {
  transform: translateY(-10px) scale(1.05);
  background: rgba(255, 255, 255, 0.15);
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 10%;
  right: 10%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 4s;
}

.card-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, #60a5fa, #a78bfa);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.5rem;
  color: white;
}

.card-content h6 {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: white;
}

.card-content p {
  font-size: 0.85rem;
  opacity: 0.8;
  margin: 0;
  color: white;
}

.main-video-preview {
  position: relative;
  width: 300px;
  height: 200px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  background: linear-gradient(45deg, #1e293b, #334155);
}

.main-video-preview .video-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: var(--transition-normal);
}

.main-video-preview .video-placeholder:hover {
  transform: scale(1.05);
}

.main-video-preview .play-button {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #6366f1;
  transition: var(--transition-normal);
  z-index: 2;
}

.main-video-preview .play-button:hover {
  background: white;
  transform: scale(1.1);
}

.video-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 500;
}

/* 视频播放器 */
.video-container {
  position: relative;
  max-width: 800px;
  margin: 3rem auto 0;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.video-placeholder {
  background: rgba(0, 0, 0, 0.3);
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
}

.video-placeholder:hover {
  background: rgba(0, 0, 0, 0.4);
}

.play-button {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary-color);
  transition: var(--transition-normal);
}

.play-button:hover {
  transform: scale(1.1);
  background: white;
}

/* 功能模块卡片 */
.feature-module-card {
  background: white;
  border-radius: 24px;
  padding: 2rem;
  height: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.feature-module-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.module-header {
  text-align: center;
  margin-bottom: 2rem;
}

.module-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2rem;
  color: white;
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.module-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.module-content {
  text-align: left;
}

.feature-item {
  margin-bottom: 1.5rem;
}

.feature-item:last-child {
  margin-bottom: 0;
}

.feature-item h5 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
}

.feature-item h5::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--gradient-primary);
  border-radius: 2px;
  margin-right: 0.75rem;
}

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

.feature-item li {
  padding: 0.4rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  position: relative;
  padding-left: 1.5rem;
}

.feature-item li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 0.7rem;
  top: 0.5rem;
}

.feature-item li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 技术架构展示 */
.tech-showcase {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 24px;
  padding: 3rem;
  margin-top: 3rem;
}

.tech-feature-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.tech-feature-item:last-child {
  margin-bottom: 0;
}

.tech-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-tech);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1.5rem;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.tech-content h5 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

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

/* 技术架构图 */
.tech-visual-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
}

.tech-diagram {
  position: relative;
  width: 300px;
  height: 300px;
}

.tech-node {
  position: absolute;
  width: 80px;
  height: 80px;
  background: white;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  border: 2px solid #e2e8f0;
  transition: var(--transition-normal);
  animation: nodeFloat 4s ease-in-out infinite;
}

.tech-node:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.tech-node i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.tech-node span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

.node-1 {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 0s;
}

.node-2 {
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  animation-delay: 1s;
}

.node-3 {
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  animation-delay: 2s;
}

.node-4 {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 3s;
}

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

.connection {
  position: absolute;
  background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
  border-radius: 2px;
  opacity: 0.6;
  animation: connectionPulse 3s ease-in-out infinite;
}

.con-1 {
  top: 40px;
  left: 50%;
  width: 2px;
  height: 80px;
  transform: translateX(-50%) rotate(45deg);
  animation-delay: 0.5s;
}

.con-2 {
  top: 50%;
  left: 40px;
  width: 80px;
  height: 2px;
  transform: translateY(-50%);
  animation-delay: 1.5s;
}

.con-3 {
  bottom: 40px;
  left: 50%;
  width: 2px;
  height: 80px;
  transform: translateX(-50%) rotate(-45deg);
  animation-delay: 2.5s;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .hero-stats {
    gap: 1.5rem;
  }

  .floating-card {
    width: 180px;
    padding: 1.25rem;
  }

  .main-video-preview {
    width: 280px;
    height: 180px;
  }
}

@media (max-width: 992px) {
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero-content {
    text-align: center;
    margin-bottom: 3rem;
  }

  .hero-stats {
    justify-content: center;
    gap: 2rem;
  }

  .visual-container {
    height: 400px;
  }

  .floating-card {
    position: static;
    margin-bottom: 1rem;
    width: 100%;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }

  .main-video-preview {
    position: static;
    width: 100%;
    max-width: 400px;
    height: 250px;
    margin: 0 auto;
  }

  .tech-stack-item {
    flex-direction: column;
    text-align: center;
  }

  .tech-stack-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .arch-layer {
    margin-bottom: 0.5rem;
  }

  .layer-components {
    flex-direction: column;
    gap: 0.25rem;
  }

  .component {
    margin-bottom: 0.25rem;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.1rem;
  }

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

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

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

  .feature-tag {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }

  .navbar-nav-wrapper {
    display: none !important;
  }

  .feature-module-card {
    padding: 1.5rem;
  }

  .module-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }

  .application-card {
    padding: 1.5rem;
  }

  .app-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }

  .app-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .tech-stack-item {
    padding: 1rem;
  }

  .performance-section {
    padding: 2rem 1rem;
  }

  .performance-card {
    padding: 1.5rem 1rem;
  }
}

@media (max-width: 576px) {
  .hero {
    padding: 80px 0 40px;
  }

  .hero-title {
    font-size: 2rem;
    line-height: 1.2;
  }

  .hero-description {
    font-size: 1rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .feature-module-card,
  .application-card {
    padding: 1.25rem;
  }

  .module-header,
  .app-header {
    flex-direction: column;
    text-align: center;
  }

  .module-icon,
  .app-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .tech-stack-item {
    padding: 1rem;
    margin-bottom: 1.5rem;
  }

  .tech-stack-icon {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }

  .diagram-container {
    padding: 1rem;
  }

  .arch-layer {
    padding: 0.75rem;
  }

  .layer-title {
    font-size: 0.9rem;
  }

  .component {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
  }

  .performance-section {
    padding: 1.5rem 1rem;
  }

  .performance-card {
    padding: 1.25rem 0.75rem;
  }

  .perf-icon {
    width: 50px;
    height: 50px;
    font-size: 1.25rem;
  }
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Hero区域动画 */
@keyframes particleFloat {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

@keyframes orbFloat {
  0%, 100% {
    transform: translateY(0px) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.1);
  }
}

@keyframes badgeGlow {
  0% {
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
  }
  100% {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.6);
  }
}

@keyframes cardFloat {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
}

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

@keyframes connectionPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

/* 渐变文字动画 */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.text-gradient {
  background: linear-gradient(45deg, #60a5fa, #a78bfa, #f472b6, #60a5fa);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 3s ease infinite;
}

/* 按钮悬停效果增强 */
.btn-gradient {
  position: relative;
  overflow: hidden;
  background: linear-gradient(45deg, #6366f1, #8b5cf6, #ec4899);
  background-size: 300% 300%;
  animation: gradientShift 3s ease infinite;
}

.btn-gradient::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;
}

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

.btn-gradient:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
}

/* 脉冲效果 */
@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
  }
  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
  }
}

.pulse-animation {
  animation: pulse 2s infinite;
}

/* 打字机效果 */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blinkCursor {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: #60a5fa;
  }
}

.typewriter {
  overflow: hidden;
  border-right: 2px solid #60a5fa;
  white-space: nowrap;
  animation: typewriter 3s steps(40, end), blinkCursor 0.75s step-end infinite;
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* 移动端菜单 */
.mobile-menu {
  display: none;
  background: white;
  border-top: 1px solid #e2e8f0;
  padding: 1rem 0;
}

.mobile-menu.active {
  display: block;
}

.mobile-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
}

.mobile-toggle.active {
  color: var(--primary-color);
}

/* 定价卡片 */
.pricing-features ul {
  text-align: left;
}

.pricing-price {
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
  padding: 1.5rem 0;
}

/* 应用场景卡片 */
.application-card {
  background: white;
  border-radius: 24px;
  padding: 2rem;
  height: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.application-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.app-header {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
}

.app-icon {
  width: 70px;
  height: 70px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1.5rem;
  font-size: 2rem;
  color: white;
  flex-shrink: 0;
}

.app-icon.education {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.app-icon.marketing {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.app-icon.content {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.app-icon.enterprise {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.app-title h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

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

.app-content {
  margin-bottom: 2rem;
}

.app-feature {
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 3px solid #e2e8f0;
  transition: var(--transition-normal);
}

.app-feature:hover {
  border-left-color: var(--primary-color);
  transform: translateX(5px);
}

.app-feature:last-child {
  margin-bottom: 0;
}

.app-feature h5 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
}

.app-feature h5 i {
  color: var(--primary-color);
  margin-right: 0.5rem;
  font-size: 1.1rem;
}

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

.app-stats {
  display: flex;
  justify-content: space-around;
  padding-top: 1.5rem;
  border-top: 1px solid #e2e8f0;
}

.app-stats .stat {
  text-align: center;
}

.app-stats .stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.app-stats .stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  display: block;
}

/* 技术栈展示 */
.tech-stack-container {
  padding: 2rem 0;
}

.tech-stack-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: white;
  border-radius: 16px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
}

.tech-stack-item:hover {
  transform: translateX(10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.tech-stack-item:last-child {
  margin-bottom: 0;
}

.tech-stack-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1.5rem;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.tech-stack-content h5 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.tech-stack-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  color: var(--text-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid #e2e8f0;
}

/* 架构图 */
.architecture-diagram {
  padding: 2rem;
}

.diagram-container {
  position: relative;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 20px;
  padding: 2rem;
  min-height: 500px;
}

.arch-layer {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
  position: relative;
}

.arch-layer:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.arch-layer:last-child {
  margin-bottom: 0;
}

.layer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  text-align: center;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}

.layer-components {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.component {
  background: var(--light-bg);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  flex: 1;
  min-width: 80px;
}

.arch-connections {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: -1;
}

.connection-line {
  position: absolute;
  background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
  opacity: 0.3;
  animation: connectionFlow 3s ease-in-out infinite;
}

.line-1 {
  top: 25%;
  left: 50%;
  width: 2px;
  height: 15%;
  transform: translateX(-50%);
  animation-delay: 0s;
}

.line-2 {
  top: 50%;
  left: 50%;
  width: 2px;
  height: 15%;
  transform: translateX(-50%);
  animation-delay: 1s;
}

.line-3 {
  top: 75%;
  left: 50%;
  width: 2px;
  height: 15%;
  transform: translateX(-50%);
  animation-delay: 2s;
}

/* 性能卡片 */
.performance-section {
  margin-top: 4rem;
  padding: 3rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 24px;
}

.performance-card {
  text-align: center;
  padding: 2rem 1rem;
  background: white;
  border-radius: 16px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  border: 1px solid #e2e8f0;
  transition: var(--transition-normal);
  height: 100%;
}

.performance-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.perf-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-tech);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
  color: white;
}

.performance-card h5 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

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

@keyframes connectionFlow {
  0%, 100% {
    opacity: 0.3;
    transform: translateX(-50%) scaleY(1);
  }
  50% {
    opacity: 0.8;
    transform: translateX(-50%) scaleY(1.2);
  }
}

/* 联系表单 */
.contact-form .form-control,
.contact-form .form-select {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  border-radius: 10px;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--primary-light);
  box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25);
  color: white;
}

.contact-form .form-control::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.contact-form .form-select option {
  background: var(--dark-bg);
  color: white;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* 返回顶部按钮 */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-normal);
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.scroll-top-btn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* 手风琴样式 */
.accordion-item {
  border: none;
  margin-bottom: 1rem;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.accordion-button {
  background: white;
  border: none;
  font-weight: 600;
  padding: 1.5rem;
  border-radius: 15px;
}

.accordion-button:not(.collapsed) {
  background: var(--light-bg);
  color: var(--primary-color);
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
  border-color: transparent;
}

.accordion-body {
  padding: 1.5rem;
  background: white;
}

/* 动画增强 */
.animate-ready {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* 图片懒加载 */
img.lazy {
  opacity: 0;
  transition: opacity 0.3s;
}

img.lazy.loaded {
  opacity: 1;
}

/* 响应式增强 */
@media (max-width: 992px) {
  .tech-visual {
    margin-top: 3rem;
  }

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

  .advantage-item .d-flex {
    flex-direction: column;
    align-items: center;
  }

  .advantage-icon {
    margin-bottom: 1rem;
    margin-right: 0 !important;
  }
}

@media (max-width: 576px) {
  .hero-buttons {
    gap: 0.5rem;
  }

  .btn-gradient,
  .btn-outline {
    padding: 10px 24px;
    font-size: 0.9rem;
  }

  .scroll-top-btn {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }

  .contact-item .d-flex {
    flex-direction: column;
    text-align: center;
  }

  .contact-icon {
    margin-bottom: 0.5rem;
    margin-right: 0 !important;
  }
}