:root {
  /* AI紫色主题色 */
  --ai-purple: #9C89FF;
  --ai-blue: #5E7DF9;
  --ai-purple-light: #B8A9FF;
  --ai-purple-dark: #7B68E8;

  /* 背景色 */
  --background: #FFFFFF;
  --surface1: #FFFFFF;
  --surface2: #F5F7FA;
  --surface3: #F0F2FF;
  --surface-purple: #F8F6FF;

  /* 文字色 */
  --text1: #233863;
  --text2: #6D7B96;
  --text3: #4A4A4A;
  --text4: #8E99AB;

  /* AI渐变 */
  --gradient-ai: linear-gradient(135deg, #9C89FF 0%, #5E7DF9 100%);
  --gradient-ai-hover: linear-gradient(135deg, #B8A9FF 0%, #7B8FFF 100%);
  --gradient-glow: radial-gradient(circle, rgba(156,137,255,0.15) 0%, transparent 70%);

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 60px;
  --space-4xl: 80px;
  --space-5xl: 100px;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(156,137,255,0.08);
  --shadow-md: 0 8px 30px rgba(156,137,255,0.12);
  --shadow-lg: 0 20px 60px rgba(156,137,255,0.15);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text3);
  background: var(--background);
  line-height: 1.8;
  font-size: 14px;
  overflow-x: hidden;
}


ul { list-style: none; }
.page-container { max-width: 1260px; margin: 0 auto; padding: 0 30px; }

/* ========================================
   动画系统 - AIFusionX风格img { max-width: 100%; display: block; }a { text-decoration: none; color: inherit; transition: color 0.3s; }
   ======================================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes slideRight {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}
@keyframes dotPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* 交错进场动画 */
.animate-entry {
  opacity: 0;
  animation: fadeUp 700ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.stagger-1 { animation-delay: 0ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 200ms; }
.stagger-4 { animation-delay: 300ms; }
.stagger-5 { animation-delay: 400ms; }
.stagger-6 { animation-delay: 500ms; }
.stagger-7 { animation-delay: 600ms; }
.stagger-8 { animation-delay: 700ms; }

/* 滚动触发动画 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 700ms cubic-bezier(0.4,0,0.2,1), transform 700ms cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ========================================
   按钮系统
   ======================================== */
.btn-ai {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-ai);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 500;
  padding: 0 32px;
  height: 52px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn-ai::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-ai-hover);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-ai:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(156,137,255,0.35);
}
.btn-ai:hover::before { opacity: 1; }
.btn-ai span { position: relative; z-index: 1; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--ai-purple);
  font-size: 16px;
  font-weight: 500;
  padding: 0 32px;
  height: 52px;
  border: 1.5px solid var(--ai-purple);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
}
.btn-outline:hover {
  background: var(--surface-purple);
  transform: translateY(-2px);
}

/* ========================================
   区块标题
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.section-header .tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--surface-purple);
  color: var(--ai-purple);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-md);
}
.section-header h2 {
  font-size: 40px;
  font-weight: 600;
  color: var(--text1);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}
.section-header p {
  font-size: 18px;
  color: var(--text2);
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

/* ========================================
   HERO区域 - 重新设计主视觉
   ======================================== */
.hero {
  position: relative;
  min-height: 750px;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  overflow: hidden;
  background: radial-gradient(ellipse at top, #F0EDFF 0%, #F8F6FF 40%, #FFFFFF 100%);
}

/* 动态背景粒子网格 */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(156,137,255,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(94,125,249,0.06) 0%, transparent 50%);
  animation: bgShift 20s ease-in-out infinite alternate;
}
@keyframes bgShift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(20px, -20px) scale(1.05); }
}

.hero .page-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* 左侧文字内容 */
.hero-content {
  text-align: left;
}
.hero-title {
  font-size: 56px;
  font-weight: 600;
  color: var(--text1);
  line-height: 1.25;
  margin-bottom: var(--space-md);
}
.hero-title .highlight {
  display: block;
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
}
.hero-source {
  font-size: 12px;
  color: var(--text4);
  margin-bottom: var(--space-lg);
  opacity: 0.7;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text2);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: var(--space-lg);
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: var(--space-xl);
}
.hero-stat-item {
  display: flex;
  flex-direction: column;
}
.hero-stat-item .num {
  font-size: 32px;
  font-weight: 700;
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.hero-stat-item .label {
  font-size: 13px;
  color: var(--text2);
  margin-top: 4px;
}

/* 右侧主视觉 - 3D AI大脑/网络中心 */
.hero-visual {
  position: relative;
  height: 550px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 中心AI核心球体 */
.hero-ai-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 280px;
  border-radius: 50%;
  z-index: 2;
}
.hero-ai-core .core-svg {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  animation: coreRotate 20s linear infinite;
}
.hero-robot-center {
  position: absolute;
  bottom: 5%;
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  aspect-ratio: 2 / 3;
  z-index: 3;
  pointer-events: none;
}
.hero-robot-center img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 8px 24px rgba(156,137,255,0.3));
}
@keyframes coreRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 内层光环 */
.hero-ai-core::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 1.5px solid rgba(156,137,255,0.25);
  animation: ringPulse 3s ease-in-out infinite;
}
.hero-ai-core::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px dashed rgba(156,137,255,0.15);
}
@keyframes ringPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.6; }
}

/* Canvas粒子背景 */
#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.core-svg {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

/* 环绕的AI能力节点 */
.hero-orbit-node {
  position: absolute;
  width: 100px;
  height: 100px;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 30px rgba(156,137,255,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border: 1px solid rgba(156,137,255,0.15);
  transition: all 0.3s ease;
  animation: nodeFloat 4s ease-in-out infinite;
}
.hero-orbit-node:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 12px 40px rgba(156,137,255,0.35);
  border-color: var(--ai-purple);
}
.hero-orbit-node .icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--gradient-ai);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-orbit-node .icon svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}
.hero-orbit-node .label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text1);
  text-align: center;
  line-height: 1.3;
}

/* 节点位置布局 - 大半圆形分布，下方留给机器人 */
/* hero-visual children: 1=canvas, 2=hero-ai-core, 3=hero-robot-center, 4~11=orbit-nodes */
.hero-orbit-node:nth-child(4) {
  bottom: 18%;
  left: 2%;
  animation-delay: 0s;
}
.hero-orbit-node:nth-child(5) {
  top: 48%;
  left: 5%;
  animation-delay: 0.5s;
}
.hero-orbit-node:nth-child(6) {
  top: 18%;
  left: 4%;
  animation-delay: 1s;
}
.hero-orbit-node:nth-child(7) {
  top: 2%;
  left: 25%;
  animation-delay: 1.5s;
}
.hero-orbit-node:nth-child(8) {
  top: -1%;
  right: 32%;
  animation-delay: 2s;
}
.hero-orbit-node:nth-child(9) {
  top: 12%;
  right: 5%;
  animation-delay: 2.5s;
}
.hero-orbit-node:nth-child(10) {
  top: 42%;
  right: 2%;
  animation-delay: 3s;
}
.hero-orbit-node:nth-child(11) {
  bottom: 22%;
  right: 6%;
  animation-delay: 3.5s;
}
.hero-orbit-node:nth-child(12) {
  bottom: -10%;
  left: 20%;
  animation-delay: 3.5s;
}
.hero-orbit-node:nth-child(13) {
  bottom: -10%;
  right: 20%;
  animation-delay: 3.5s;
}
@keyframes nodeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* 连接线动画 */
.hero-connection-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(156,137,255,0.3) 50%, transparent 100%);
  transform-origin: center;
  animation: lineFlow 3s ease-in-out infinite;
}
@keyframes lineFlow {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.6; }
}

/* 粒子效果 */
.hero-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--ai-purple);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 6s ease-in-out infinite;
}
@keyframes particleFloat {
  0% { opacity: 0; transform: translate(0, 0) scale(0); }
  10% { opacity: 0.6; transform: translate(0, 0) scale(1); }
  90% { opacity: 0.6; }
  100% { opacity: 0; transform: translate(var(--tx), var(--ty)) scale(0); }
}
.hero-particle:nth-child(1) { top: 30%; left: 20%; --tx: 40px; --ty: -60px; animation-delay: 0s; }
.hero-particle:nth-child(2) { top: 60%; left: 70%; --tx: -50px; --ty: 40px; animation-delay: 1s; }
.hero-particle:nth-child(3) { top: 40%; right: 15%; --tx: 30px; --ty: 50px; animation-delay: 2s; }
.hero-particle:nth-child(4) { bottom: 35%; left: 25%; --tx: -40px; --ty: -30px; animation-delay: 3s; }

/* ========================================
   服务范围区域 - 参考图排版
   ======================================== */
.service-section {
  padding: var(--space-5xl) 0;
  background: var(--surface2);
}
.service-wrapper {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 80px;
  align-items: start;
}

/* 左侧内容 */
.service-left {
  position: sticky;
  top: 120px;
}
.service-left h2 {
  font-size: 48px;
  font-weight: 600;
  color: var(--text1);
  line-height: 1.3;
  margin-bottom: var(--space-xl);
}
.service-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: var(--space-2xl);
}
.service-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  color: var(--text2);
  line-height: 1.6;
}
.service-feature-item::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--gradient-ai);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 2px;
}

/* 右侧卡片网格 */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-capability-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(156,137,255,0.08);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-ai);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.service-capability-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(156,137,255,0.2);
}
.service-capability-card:hover::before {
  transform: scaleX(1);
}
.service-capability-card .icon-wrapper {
  width: 56px;
  height: 56px;
  background: var(--surface-purple);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  transition: all 0.3s ease;
}
.service-capability-card:hover .icon-wrapper {
  background: var(--gradient-ai);
}
.service-capability-card .icon-wrapper svg {
  width: 28px;
  height: 28px;
  fill: var(--ai-purple);
  transition: fill 0.3s;
}
.service-capability-card:hover .icon-wrapper svg {
  fill: #fff;
}
.service-capability-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text1);
  margin-bottom: 8px;
  line-height: 1.4;
}
.service-capability-card .model-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--ai-purple);
  margin-bottom: var(--space-md);
  font-weight: 500;
}
.service-capability-card .model-tag::before {
  content: '';
  width: 16px;
  height: 16px;
  background: var(--gradient-ai);
  border-radius: 4px;
  opacity: 0.2;
}
.service-capability-card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

/* ========================================
   产品能力区域
   ======================================== */
.product-section {
  padding: var(--space-5xl) 0;
  background-image: url('/images/new/index-product.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  position: relative;
}
.product-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.1);
  z-index: 0;
}
.product-section > .page-container {
  position: relative;
  z-index: 1;
}
.product-section .section-header h2 {
  color: #FFFFFF;
}
.product-section .section-header p {
  color: rgba(255,255,255,0.7);
}
.product-section .section-header .tag {
  background: rgba(255,255,255,0.2);
  color: #FFFFFF;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: var(--space-4xl);
}
.product-card {
  background: #FFFFFF;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
  cursor: pointer;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}
.product-card .video-wrapper {
  position: relative;
  width: calc(100% - 16px);
  margin: 8px auto 0;
  padding-top: 52%;
  background: linear-gradient(135deg, #F0F2FF 0%, #F8F6FF 100%);
  overflow: hidden;
  border-radius: 16px;
}
.product-card .video-wrapper::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  z-index: 3;
}
.product-card .video-wrapper::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-42%, -50%);
  width: 0; height: 0;
  border-style: solid;
  border-width: 7px 0 7px 12px;
  border-color: transparent transparent transparent #2C2C2C;
  z-index: 4;
}
.product-card .info {
  padding: 16px 20px;
}
.product-card .info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text1);
  line-height: 1.5;
}
.product-card .product-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.product-more {
  text-align: center;
  margin-top: var(--space-xl);
}
.product-more .btn-outline {
  min-width: 160px;
  border-color: #FFFFFF;
  color: #FFFFFF;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.product-more .btn-outline:hover {
  background: rgba(255,255,255,0.25);
  border-color: #FFFFFF;
  color: #FFFFFF;
}
.product-grid.expanded {
  grid-template-rows: auto;
}
.product-card.hidden {
  display: none;
}
.product-grid.expanded .product-card.hidden {
  display: block;
}

/* ========================================
   核心优势区域 - 滚动堆叠卡片
   ======================================== */
.advantage-section {
  padding: var(--space-5xl) 0;
  background: var(--background);
  position: relative;
}

/* 堆叠容器 */
.advantage-stack-container {
  position: relative;
  margin-top: var(--space-4xl);
}

/* 堆叠卡片 */
.advantage-stack-card {
  position: sticky;
  height: 480px;
  border-radius: var(--radius-xl);
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 60px 60px 60px 80px;
  overflow: hidden;
}

/* 4种颜色背景 - z-index递增使后面的卡片覆盖前面 */
.advantage-stack-card:nth-child(1) {
  background: #DDC1FF;
  top: 100px;
  z-index: 1;
}
.advantage-stack-card:nth-child(2) {
  background: #A8DDFF;
  top: 140px;
  z-index: 2;
}
.advantage-stack-card:nth-child(3) {
  background: #81E491;
  top: 180px;
  z-index: 3;
}
.advantage-stack-card:nth-child(4) {
  background: #C1C8FA;
  top: 220px;
  z-index: 4;
}

/* 左侧内容 */
.advantage-stack-card .content-left {
  z-index: 2;
  position: relative;
}
.advantage-stack-card .content-left h3 {
  font-size: 32px;
  font-weight: 600;
  color: #1A1A1A;
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}
.advantage-stack-card .content-left .features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.advantage-stack-card .content-left .feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: #333;
  line-height: 1.6;
  padding: 8px 0;
}
.advantage-stack-card .content-left .feature-item::before {
  content: '●';
  font-size: 8px;
  color: rgba(0,0,0,0.4);
}

/* 右侧插图 */
.advantage-stack-card .content-right {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.advantage-stack-card .illustration {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Mock Browser 容器 */
.mock-browser {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.06);
  overflow: hidden;
}
.mock-browser-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #F8F9FB;
  border-bottom: 1px solid #EAEEF3;
}
.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.mock-dot.red { background: #FF5F57; }
.mock-dot.yellow { background: #FFBD2E; }
.mock-dot.green { background: #28CA41; }
.mock-browser-title {
  font-size: 11px;
  color: #8892A4;
  margin-left: 8px;
  font-weight: 500;
}
.mock-browser-body {
  display: flex;
  min-height: 220px;
}

/* Mock Sidebar */
.mock-sidebar {
  width: 44px;
  background: #F3F5F8;
  border-right: 1px solid #EAEEF3;
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.mock-sidebar-item {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #A0AAB8;
  cursor: default;
  transition: all 0.2s;
}
.mock-sidebar-item.active {
  background: rgba(130,100,255,0.12);
  color: #7C5CFC;
}

/* Mock Content */
.mock-content {
  flex: 1;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Stats Row */
.mock-stats-row {
  display: flex;
  gap: 8px;
}
.mock-stat-card {
  flex: 1;
  background: #F8F9FB;
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mock-stat-label {
  font-size: 9px;
  color: #8892A4;
}
.mock-stat-value {
  font-size: 18px;
  font-weight: 700;
  color: #233863;
}
.mock-stat-change {
  font-size: 9px;
  font-weight: 500;
}
.mock-stat-change.up { color: #28CA41; }
.mock-stat-change.down { color: #FF5F57; }

/* Agent List */
.mock-agent-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mock-agent-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: #FAFAFC;
  border-radius: 8px;
  border: 1px solid #F0F2F5;
}
.mock-agent-avatar {
  font-size: 16px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-agent-name {
  font-size: 11px;
  color: #233863;
  font-weight: 500;
  flex: 1;
}
.mock-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.mock-status-dot.online { background: #28CA41; }
.mock-status-dot.offline { background: #D1D5DB; }

/* Flow Canvas - 卡片2 */
.mock-flow-canvas {
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  width: 100%;
}
.mock-flow-node {
  padding: 6px 18px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 500;
  text-align: center;
}
.mock-flow-node.node-start {
  background: rgba(130,100,255,0.12);
  color: #7C5CFC;
}
.mock-flow-node.node-agent {
  background: rgba(34,154,244,0.12);
  color: #229AF4;
}
.mock-flow-node.node-end {
  background: rgba(40,202,65,0.12);
  color: #1a9a38;
}
.mock-flow-node.node-sub {
  background: #F8F9FB;
  color: #233863;
  border: 1px solid #E5E9F0;
  font-size: 10px;
  padding: 5px 12px;
}
.mock-flow-line {
  width: 1.5px;
  height: 18px;
  background: #D1D5DB;
}
.mock-flow-branch {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  padding: 10px 0;
}
.mock-flow-branch::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 1.5px;
  background: #D1D5DB;
}
.mock-flow-line-h {
  display: none;
}

/* Graph Area - 卡片3 */
.mock-graph-area {
  width: 100%;
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mock-search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #F8F9FB;
  border-radius: 8px;
  border: 1px solid #E5E9F0;
}
.mock-search-icon { font-size: 12px; }
.mock-search-text { font-size: 11px; color: #A0AAB8; }

/* Code Editor - 卡片4 */
.mock-code-editor {
  background: #1E1E2E;
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.mock-code-line {
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 10px;
  line-height: 1.7;
  color: #CDD6F4;
  white-space: nowrap;
}
.code-ln { color: #585B70; margin-right: 12px; user-select: none; }
.code-kw { color: #CBA6F7; }
.code-str { color: #A6E3A1; }
.code-fn { color: #89B4FA; }
.mock-terminal {
  background: #181825;
  border-radius: 6px;
  padding: 8px 12px;
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 10px;
}
.terminal-prompt { color: #A6E3A1; }
.terminal-text { color: #CDD6F4; }

/* 卡片序号 */
.card-number {
  position: absolute;
  top: 24px;
  left: 24px;
  font-size: 28px;
  font-weight: 700;
  color: rgba(0,0,0,0.15);
  z-index: 3;
  line-height: 1;
}

/* GenAIOS区域 */
.genaios-section {
  margin-top: var(--space-4xl);
  padding: var(--space-4xl) var(--space-4xl) var(--space-3xl);
  background: #F8F7FF;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}
.genaios-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(156,137,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.genaios-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(94,125,249,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.genaios-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.genaios-header h3 {
  font-size: 32px;
  font-weight: 600;
  color: var(--text1);
}
.genaios-arch {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 2;
}
.genaios-module {
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  border: 1px solid rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 180px;
}
.genaios-module-left {
  flex: 1;
}
.genaios-module-left h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text1);
  margin-bottom: 16px;
}
.genaios-module-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.genaios-module-tags span {
  display: inline-block;
  padding: 6px 14px;
  background: #F0EEF8;
  color: #6D7B96;
  font-size: 12px;
  border-radius: var(--radius-sm);
  text-align: center;
  white-space: nowrap;
}
.genaios-module-right {
  flex: 0 0 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.genaios-module-right svg {
  width: 90px;
  height: 90px;
}

/* ========================================
   合作客户区域
   ======================================== */
.client-section {
  padding: var(--space-5xl) 0;
  background: var(--surface2);
}
.client-video-carousel {
  margin-top: var(--space-4xl);
  position: relative;
}
.client-video-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 30px 8px 40px;
  margin: -30px -8px -20px;
  scrollbar-width: none;
}
.client-video-track::-webkit-scrollbar {
  display: none;
}
.client-video-item {
  flex: 0 0 400px;
  background: #FFFFFF;
  border-radius: 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  cursor: pointer;
  transition: all 0.3s;
}
.client-video-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
}
.client-video-item .thumb {
  position: relative;
  width: calc(100% - 16px);
  margin: 8px auto 0;
  padding-top: 52%;
  background: linear-gradient(135deg, #F0F2FF 0%, #F8F6FF 100%);
  border-radius: 16px;
  overflow: hidden;
}
.client-video-item .thumb::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  z-index: 3;
}
.client-video-item .thumb::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-42%, -50%);
  width: 0; height: 0;
  border-style: solid;
  border-width: 7px 0 7px 12px;
  border-color: transparent transparent transparent #2C2C2C;
  z-index: 4;
}
.client-video-item .thumb .client-thumb-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.client-video-item .caption {
  padding: 16px 20px;
  font-size: 15px;
  color: var(--text1);
  font-weight: 500;
}
.client-logos {
  margin-top: var(--space-4xl);
  padding: var(--space-3xl);
  padding-bottom: 5px;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
}
.client-logos h4 {
  text-align: center;
  font-size: 18px;
  color: var(--text2);
  margin-bottom: var(--space-xl);
}
.logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 30px;
  align-items: center;
}
.logo-grid .logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0.6;
  transition: opacity 0.3s;
  filter: grayscale(100%);
}
.logo-grid .logo-item:hover {
  opacity: 1;
  filter: grayscale(0%);
}
.logo-grid .logo-item img {
  max-width: 100%;
  height: auto;
  max-height: 100px;
}

/* ========================================
   企业实力区域
   ======================================== */
.strength-section {
  padding: var(--space-5xl) 0;
  background-image: url('/images/new/index-bg.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}
.strength-section::before {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  top: 0; left: 0;
}
.strength-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  margin-top: var(--space-4xl);
  position: relative;
  z-index: 2;
}
.stat-item {
  text-align: center;
}
.stat-item .number {
  font-size: 42px;
  font-weight: 700;
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.stat-item .unit {
  font-size: 18px;
  -webkit-text-fill-color:#6D7B96;
}
.stat-item .label {
  font-size: 14px;
  color: #6D7B96;
  margin-top: 8px;
}
/* 全球地图 */
.global-map {
  margin-top: var(--space-4xl);
  position: relative;
  z-index: 2;
  text-align: center;
}
.global-map .map-container {
  position: relative;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  aspect-ratio: 2/1;
}
.map-location {
  position: absolute;
  width: 12px;
  height: 12px;
  transform: translate(-50%, -50%);
}
.map-location::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: rgba(94, 125, 249, 0.8);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(94, 125, 249, 0.6);
  z-index: 2;
}
.map-location::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: rgba(94, 125, 249, 0.3);
  border-radius: 50%;
  animation: mapPulse 2s ease-out infinite;
  z-index: 1;
}
.map-location-label {
  position: absolute;
  top: -28px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 500;
  color: #FFFFFF;
  white-space: nowrap;
  background: rgba(94, 125, 249, 0.9);
  padding: 4px 10px;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
@keyframes mapPulse {
  0% {
    width: 12px;
    height: 12px;
    opacity: 0.6;
  }
  100% {
    width: 40px;
    height: 40px;
    opacity: 0;
  }
}

/* ========================================
   内容精选区域
   ======================================== */
.content-section {
  padding: var(--space-5xl) 0;
  background: var(--background);
}
.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: var(--space-4xl);
}
.content-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
}
.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.content-card .thumb {
  width: 100%;
  padding-top: 56.25%;
  background: var(--surface2);
  position: relative;
}
.content-card .body {
  padding: 20px;
}
.content-card .body .tag {
  display: inline-block;
  font-size: 12px;
  color: var(--ai-purple);
  background: var(--surface-purple);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}
.content-card .body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text1);
  line-height: 1.5;
  margin-bottom: 8px;
}
.content-card .body p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}

/* ========================================
   知识干货区域
   ======================================== */
.knowledge-section {
  padding: var(--space-5xl) 0;
  background: var(--surface2);
}
.knowledge-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: var(--space-xl);
}
.knowledge-tabs .tab {
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--text2);
  cursor: pointer;
  transition: all 0.3s;
  border: 1px solid transparent;
}
.knowledge-tabs .tab.active,
.knowledge-tabs .tab:hover {
  background: var(--gradient-ai);
  color: #FFFFFF;
  border-color: transparent;
}
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.knowledge-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
}
.knowledge-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.knowledge-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text1);
  margin-bottom: 12px;
  line-height: 1.5;
}
.knowledge-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.7;
}
.knowledge-card .meta {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text4);
}

/* ========================================
   FAQ区域
   ======================================== */
.faq-section {
  padding: var(--space-5xl) 0;
  background: var(--background);
}
.faq-list {
  max-width: 800px;
  margin: var(--space-4xl) auto 0;
}
.faq-item {
  border-bottom: 1px solid rgba(156,137,255,0.15);
}
.faq-item .question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  cursor: pointer;
  transition: color 0.3s;
}
.faq-item .question h4 {
  font-size: 18px;
  font-weight: 500;
  color: var(--text1);
  transition: color 0.3s;
}
.faq-item .question .arrow {
  width: 24px; height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
  color: var(--ai-purple);
}
.faq-item.active .question h4 { color: var(--ai-purple); }
.faq-item.active .question .arrow { transform: rotate(180deg); }
.faq-item .answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .answer {
  max-height: 300px;
  padding-bottom: 24px;
}
.faq-item .answer p {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.8;
}
.faq-action {
  text-align: center;
  margin-top: var(--space-3xl);
}

/* ========================================
   响应式适配
   ======================================== */
@media (max-width: 1024px) {
  .hero .page-container { grid-template-columns: 1fr; }
  .hero-content { text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { height: 400px; }
  .hero-orbit-node { width: 80px; height: 80px; }
  .hero-orbit-node .icon { width: 32px; height: 32px; }
  .hero-orbit-node .label { font-size: 11px; }
  .hero-ai-core { width: 200px; height: 200px; }
  .hero-ai-core::before { width: 180px; height: 180px; }
  .hero-ai-core::after { width: 240px; height: 240px; }
  .hero-robot-center { width: 120px; }
  .service-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .service-left { position: static; }
  .service-grid { grid-template-columns: 1fr; }
  .advantage-stack-card { grid-template-columns: 1fr; height: auto; padding: 40px; gap: 30px; }
  .advantage-stack-card:nth-child(1) { top: 80px; }
  .advantage-stack-card:nth-child(2) { top: 110px; }
  .advantage-stack-card:nth-child(3) { top: 140px; }
  .advantage-stack-card:nth-child(4) { top: 170px; }
  .advantage-stack-card .content-right { height: 250px; margin-top: 20px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .genaios-arch { grid-template-columns: repeat(2, 1fr); }
  .strength-stats { grid-template-columns: repeat(3, 1fr); }
  .logo-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .hero { padding: 120px 0 60px; min-height: auto; top:-50px;}
  .hero .page-container { grid-template-columns: 1fr; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-visual { height: 420px; }
  .hero-orbit-node { width: 64px; height: 64px; padding: 8px; }
  .hero-orbit-node:nth-child(3) { right: 20px; }
  .hero-orbit-node:nth-child(4) { right: 10%; }
  .hero-orbit-node .icon { width: 26px; height: 26px; }
  .hero-orbit-node .label { font-size: 10px; }
  .hero-ai-core { width: 140px; height: 140px; }
  .hero-ai-core::before { width: 120px; height: 120px; }
  .hero-ai-core::after { width: 180px; height: 180px; }
  .hero-robot-center { width: 90px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-stat-item .num { font-size: 24px; }
  .section-header h2 { font-size: 28px; }
  .section-header p { font-size: 15px; }
  .service-wrapper { grid-template-columns: 1fr; gap: 30px; }
  .service-left h2 { font-size: 32px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-capability-card { padding: 24px; }
  .product-grid { grid-template-columns: 1fr; }
  .genaios-arch { grid-template-columns: 1fr; }
  .strength-stats { grid-template-columns: repeat(2, 1fr); }
  .client-video-item { flex: 0 0 300px; }
  .content-grid { grid-template-columns: 1fr; }
  .knowledge-grid { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
  .advantage-stack-card { height: auto; padding: 30px; gap: 30px; }
  .advantage-stack-card:nth-child(1) { top: 70px; }
  .advantage-stack-card:nth-child(2) { top: 90px; }
  .advantage-stack-card:nth-child(3) { top: 110px; }
  .advantage-stack-card:nth-child(4) { top: 130px; }
  .advantage-stack-card .content-left h3 { font-size: 24px; }
  .advantage-stack-card .content-right { height: 200px; }
}

/* ========================================
   Video Modal
   ======================================== */
.video-modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.video-modal-overlay.active {
  display: flex;
}
.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 960px;
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
  animation: modalSlideIn 0.3s ease-out;
}
@keyframes modalSlideIn {
  from { transform: scale(0.92) translateY(20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}
.video-modal-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 36px; height: 36px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.2s;
}
.video-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}
.video-modal-title {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  z-index: 5;
  pointer-events: none;
}
.video-modal-body {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0d0d0d;
}
.video-modal-body video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

@media (max-width: 768px) {
  .video-modal-content { width: 95%; border-radius: 10px; }
  .video-modal-close { width: 30px; height: 30px; top: 8px; right: 8px; }
  .video-modal-title { font-size: 13px; padding: 12px 16px; }
}