/* ========================================
   首页样式文件 - 优化整理版
   ======================================== */

/* ========================================
   1. CSS变量定义
   ======================================== */
:root {
  /* 颜色变量 */
  --primary-color: #667eea;
  --primary-dark: #764ba2;
  --secondary-color: #3498db;
  --accent-color: #f093fb;
  
  /* 中性色 */
  --white: #ffffff;
  --gray-50: #f7fafc;
  --gray-100: #f7fafc;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e0;
  --gray-400: #a0aec0;
  --gray-500: #718096;
  --gray-600: #4a5568;
  --gray-700: #2d3748;
  --gray-800: #1a202c;
  --gray-900: #171923;
  
  /* 状态色 */
  --success: #48bb78;
  --warning: #ed8936;
  --error: #f56565;
  
  /* 字体变量 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* 间距变量 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  
  /* 阴影变量 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15), 0 10px 10px rgba(0, 0, 0, 0.04);
  
  /* 圆角变量 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* 过渡变量 */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========================================
   2. 基础重置样式
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

/* ========================================
   3. 布局容器
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.product-showcase-v2 .container,
.features-showcase-v2 .container {
  text-align: center !important;
  margin: 0 auto !important;
  display: block !important;
  width: 100% !important;
  max-width: 1200px !important;
}

.container-sm {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   4. 通用组件
   ======================================== */

/* 4.1 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: var(--transition-normal);
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

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

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

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

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* 4.2 卡片样式 */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--gray-200);
}

.card-body {
  padding: var(--spacing-xl);
}

/* 4.3 网格系统 */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   5. 页面头部样式
   ======================================== */
/* 轮播图样式 */
.carousel-container {
  position: relative;
  width: 100%;
  height: 600px;
  overflow: hidden;
  margin-top: 94px;
}

.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}

.carousel-caption {
  position: absolute;
  top: calc(20%);
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  z-index: 10;
}

.carousel-caption .hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  line-height: 1.3;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  color: white;
}

.carousel-caption .hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 400;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.9;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}



/* 轮播指示器 */
.carousel-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 15;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s ease;
}

.indicator.active {
  background: white;
}

.indicator:hover {
  background: rgba(255, 255, 255, 0.8);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .carousel-container {
    height: 400px;
  }
  
  .carousel-caption {
    padding: 20px 30px;
    margin: 0 20px;
  }
  
  .carousel-caption .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .carousel-caption .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  

}

/* ========================================
   6. Banner区域样式
   ======================================== */
.banner-section {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  height: 608px;
  overflow: hidden;
  position: relative;
  margin-top: 0;
}

.banner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 1fr);
  height: 100%;
  gap: 1px;
  background: transparent;
}

.banner-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-normal);
  background-image: url('../images/警务.png');
  background-size: 400% 200%;
  background-repeat: no-repeat;
}

/* Banner背景图模式 */
.banner-grid.traffic-mode .banner-item {
  background-image: url('../images/交通.png');
}

.banner-grid.police-mode .banner-item {
  background-image: url('../images/警务.png');
}

.banner-grid.pipeline-mode .banner-item {
  background-image: url('../images/管线.png');
}

.banner-grid.emergency-mode .banner-item {
  background-image: url('../images/应急.png');
}

.banner-grid.park-mode .banner-item {
  background-image: url('../images/园区.png');
}

.banner-grid.logistics-mode .banner-item {
  background-image: url('../images/物流.png');
}

.banner-grid.security-mode .banner-item {
  background-image: url('../images/安防.png');
}

.banner-grid.cleaning-mode .banner-item {
  background-image: url('../images/清洁.png');
}

/* Banner位置定义 */
.banner-item:nth-child(1) { background-position: 0% 0%; }
.banner-item:nth-child(2) { background-position: 33.33% 0%; }
.banner-item:nth-child(3) { background-position: 66.66% 0%; }
.banner-item:nth-child(4) { background-position: 100% 0%; }
.banner-item:nth-child(5) { background-position: 0% 100%; }
.banner-item:nth-child(6) { background-position: 33.33% 100%; }
.banner-item:nth-child(7) { background-position: 66.66% 100%; }
.banner-item:nth-child(8) { background-position: 100% 100%; }

/* Banner区域响应式设计 */
@media (max-width: 1200px) {
  .banner-section {
    height: 500px;
  }
  
  .banner-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(4, 1fr);
  }
  
  .banner-item {
    background-size: 200% 400%;
  }
  
  .banner-item:nth-child(1) { background-position: 0% 0%; }
  .banner-item:nth-child(2) { background-position: 100% 0%; }
  .banner-item:nth-child(3) { background-position: 0% 33.33%; }
  .banner-item:nth-child(4) { background-position: 100% 33.33%; }
  .banner-item:nth-child(5) { background-position: 0% 66.66%; }
  .banner-item:nth-child(6) { background-position: 100% 66.66%; }
  .banner-item:nth-child(7) { background-position: 0% 100%; }
  .banner-item:nth-child(8) { background-position: 100% 100%; }
}

@media (max-width: 768px) {
  .banner-section {
    height: 400px;
  }
  
  .banner-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(8, 1fr);
    gap: 2px;
  }
  
  .banner-item {
    background-size: 100% 800%;
  }
  
  .banner-item:nth-child(1) { background-position: 0% 0%; }
  .banner-item:nth-child(2) { background-position: 0% 14.28%; }
  .banner-item:nth-child(3) { background-position: 0% 28.57%; }
  .banner-item:nth-child(4) { background-position: 0% 42.86%; }
  .banner-item:nth-child(5) { background-position: 0% 57.14%; }
  .banner-item:nth-child(6) { background-position: 0% 71.43%; }
  .banner-item:nth-child(7) { background-position: 0% 85.71%; }
  .banner-item:nth-child(8) { background-position: 0% 100%; }
}

@media (max-width: 480px) {
  .banner-section {
    height: 320px;
  }
  
  .banner-grid {
    gap: 1px;
  }
}

/* ========================================
   7. 产品展示区域样式
   ======================================== */
.product-showcase {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.product-showcase::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 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
  pointer-events: none;
}

.section-header {
  text-align: center !important;
  margin-bottom: var(--spacing-3xl);
  display: block;
  width: 100%;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.section-subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 主产品展示区 */
.hero-product {
  margin-bottom: var(--spacing-3xl);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-text {
  color: var(--white);
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
  text-align: justify;
  text-justify: inter-word;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
}

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

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.hero-image {
  text-align: center;
}

.hero-product-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  transition: var(--transition-normal);
}

.hero-product-img:hover {
  transform: scale(1.05) rotate(2deg);
}

/* 产品展示区域响应式设计 */
@media (max-width: 1200px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-2xl);
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .product-features-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .product-showcase {
    padding: var(--spacing-2xl) 0;
  }
  
  .hero-content {
    padding: var(--spacing-2xl);
    margin: 0 var(--spacing-md);
  }
  
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-lg);
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .hero-content {
    padding: var(--spacing-lg);
    margin: 0 var(--spacing-sm);
  }
  
  .hero-title {
    font-size: var(--font-size-xl);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .stat-number {
    font-size: var(--font-size-2xl);
  }
}

/* 产品特性卡片 */
.product-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.product-feature-card {
  background: var(--white);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.product-feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.card-header {
  position: relative;
  padding: var(--spacing-2xl);
  background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
  text-align: center;
}



.feature-content {
  padding: var(--spacing-2xl);
}

.feature-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: var(--spacing-md);
}

.feature-description {
  color: var(--gray-600);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
  text-align: justify;
  text-justify: inter-word;
}

.feature-specs {
  margin-bottom: var(--spacing-2xl);
}

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

.spec-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--primary-color);
}

.spec-icon {
  font-size: var(--font-size-xl);
}

.spec-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  margin-bottom: 2px;
  font-weight: 500;
}

.spec-value {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--gray-700);
}

.feature-highlights {
  margin-bottom: var(--spacing-2xl);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md) 0;
}

.highlight-icon {
  color: var(--success);
  font-weight: bold;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 2px;
}

.highlight-text {
  color: var(--gray-600);
  line-height: 1.5;
}

/* ========================================
   8. 特色展示区域样式
   ======================================== */
.features-showcase {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-50);
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-2xl);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-2xl);
  transition: var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-5px);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  transition: var(--transition-normal);
}

.feature-item:hover .feature-icon {
  transform: scale(1.1);
}

.feature-item h4 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--gray-700);
  margin-bottom: var(--spacing-md);
}

.feature-item p {
  color: var(--gray-600);
  line-height: 1.6;
  text-align: justify;
  text-justify: inter-word;
}

/* ========================================
   9. 核心技术优势样式
   ======================================== */
.core-technologies {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.core-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.tech-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
}

.tech-main-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.tech-image-item {
  text-align: center;
}

.tech-main-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.tech-main-img:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.tech-image-caption {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-700);
}

.tech-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
}

.tech-feature-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.tech-feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.tech-icon {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto;
  transition: var(--transition-normal);
}

.icon-circle.satellite {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.icon-circle.network {
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
}

.icon-circle.precision {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

.icon-text {
  font-size: var(--font-size-3xl);
  color: var(--white);
}

.tech-content h4 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--gray-700);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.tech-specs {
  display: flex;
  justify-content: space-around;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-md);
}

.tech-list {
  list-style: none;
}

.tech-list li {
  position: relative;
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--gray-600);
  line-height: 1.6;
}

.tech-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--success);
  font-weight: bold;
}

/* ========================================
   10. 重新设计的产品展示区域样式
   ======================================== */

.product-showcase-v2 {
  padding: 80px 0;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  position: relative;
  overflow: hidden;
}

.product-showcase-v2::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 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>');
  pointer-events: none;
}

.product-showcase-content {
  position: relative;
  z-index: 1;
}

.hero-product-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.product-main-visual {
  position: relative;
  text-align: center;
}

.product-hero-image {
  width: 105%;
  max-width: 800px;
  height: 110%;
  border-radius: 20px;
  transition: transform 0.3s ease;
}

.product-hero-image:hover {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, #ff6b6b, #ee5a24);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.product-overview {
  color: white;
}

.product-overview h3 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.product-overview p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
  line-height: 1.6;
}

.product-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  min-width: 120px;
  flex: 1;
  max-width: 150px;
}

.stat-number {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 5px;
  white-space: nowrap;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

/* 产品特性卡片样式 */
.product-features-grid-v2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}

.feature-card-modern {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.card-header-modern {
  position: relative;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.feature-image-container {
  padding: 20px;
  text-align: center;
}

.feature-image {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 10px;
  margin: 0 auto;
  display: inline-block;
}



.card-content-modern {
  padding: 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-content-modern h4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 20px;
}

.feature-specs-modern {
  margin-bottom: 25px;
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 15px;
}

.spec-item-modern {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 10px;
  text-align: center;
  border-left: 3px solid #667eea;
}

.spec-label {
  display: block;
  font-size: 0.8rem;
  color: #6c757d;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spec-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #2d3748;
}

.feature-highlights {
  margin-top: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  padding: 10px 0;
}

.highlight-icon {
  color: #28a745;
  font-weight: bold;
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.highlight-text strong {
  color: #2d3748;
}

/* ========================================
   11. 重新设计的技术特色区域样式
   ======================================== */

.features-showcase-v2 {
  padding: 80px 0;
  background: #f8f9fa;
}

.features-grid-modern {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.tech-feature-item {
  background: white;
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
}

.tech-feature-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
  border-color: #667eea;
}

.tech-icon-wrapper {
  margin-bottom: 20px;
}

.tech-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  transition: transform 0.3s ease;
}

.tech-feature-item:hover .tech-icon {
  transform: scale(1.1);
}

.tech-content h4 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 10px;
}

.tech-content p {
  font-size: 0.95rem;
  color: #6c757d;
  line-height: 1.6;
  margin: 0;
  text-align: justify;
  text-justify: inter-word;
}

.section-header {
  text-align: center !important;
  margin-bottom: 60px;
  display: block;
  width: 100%;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #2d3748;
  margin-bottom: 20px;
  line-height: 1.2;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -12px;
  width: 100%;
  height: 4px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #4facfe 100%);
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.section-subtitle {
  font-size: 1.2rem;
  color: #6c757d;
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.product-showcase-v2 .section-header,
.features-showcase-v2 .section-header {
  text-align: center !important;
  margin: 0 auto 60px auto !important;
  display: block !important;
  width: 100% !important;
  max-width: none !important;
}

.product-showcase-v2 .section-title,
.features-showcase-v2 .section-title {
  text-align: center !important;
  display: inline-block !important;
  margin: 0 auto 20px auto !important;
  width: auto !important;
  position: relative;
}

.product-showcase-v2 .section-title::after,
.features-showcase-v2 .section-title::after {
  content: none;
}

.product-showcase-v2 .section-subtitle,
.features-showcase-v2 .section-subtitle {
  text-align: center !important;
  display: block !important;
  margin: 0 auto !important;
  width: 100% !important;
  max-width: 600px !important;
}

.product-showcase-v2 .section-title,
.product-showcase-v2 .section-subtitle {
  color: white;
}

.product-showcase-v2 .section-subtitle {
  opacity: 0.9;
}

/* ========================================
   12. 响应式设计优化
   ======================================== */

/* 响应式设计 - 重新设计的区域 */
@media (max-width: 1200px) {
  .hero-product-display {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .product-features-grid-v2 {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .features-grid-modern {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }
}

@media (max-width: 992px) {
  .features-grid-modern {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
  
  .product-stats {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }
  
  .stat-item {
    margin-bottom: 10px;
  }
}

@media (max-width: 768px) {
  .product-showcase-v2,
  .features-showcase-v2 {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-product-display {
    gap: 30px;
    margin-bottom: 50px;
  }
  
  .product-overview h3 {
    font-size: 2rem;
  }
  
  .product-overview p {
    font-size: 1.1rem;
  }
  
  .features-grid-modern,
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .tech-feature-item,
  .stat-box {
    padding: 30px 20px;
  }
  
  .card-content-modern {
    padding: 20px;
  }
  
  .spec-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 576px) {
  .section-title {
    font-size: 1.75rem;
  }
  
  .product-hero-image {
    max-width: 100%;
  }
  
  .product-badge {
    top: 10px;
    right: 10px;
    font-size: 12px;
    padding: 6px 12px;
  }
  
  .product-stats {
    gap: 15px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .feature-card-modern {
    margin: 0 10px;
  }
  
  .tech-icon {
    width: 60px;
    height: 60px;
  }
  
  .tech-content h4 {
    font-size: 1.1rem;
  }
  
  .tech-content p {
    font-size: 0.9rem;
  }
  
  .product-features-grid-v2 {
    gap: 20px;
    padding: 0 15px;
  }
  
  .feature-card-modern {
    margin: 0;
  }
  
  .card-content-modern {
    padding: 20px 15px;
  }
  
  .card-content-modern h4 {
    font-size: 1.3rem;
  }
  
  .spec-item-modern {
    padding: 12px 10px;
  }
  
  .spec-value {
    font-size: 1.1rem;
  }
}

@media (max-width: 400px) {
  .product-showcase-v2,
  .features-showcase-v2 {
    padding: 40px 0;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .product-overview h3 {
    font-size: 1.5rem;
  }
  
  .product-overview p {
    font-size: 1rem;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .feature-image {
    max-width: 250px !important;
  }
  
  .spec-row {
    gap: 8px;
  }
  
  .spec-item-modern {
    padding: 10px 8px;
  }
  
  .spec-label {
    font-size: 0.7rem;
  }
  
  .spec-value {
    font-size: 1rem;
  }
  
  .highlight-text {
    font-size: 0.85rem;
  }
}

/* 大屏幕 */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* 中等屏幕 */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
  }
  
  .product-features-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tech-main-images {
    grid-template-columns: 1fr;
  }
}

/* 小屏幕 */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
  
  .product-showcase,
  .features-showcase,
  .core-technologies {
    padding: var(--spacing-2xl) 0;
  }
  
  .hero-content {
    padding: var(--spacing-2xl);
    margin: 0 var(--spacing-md);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-features-grid {
    grid-template-columns: 1fr;
  }
  
  .spec-row {
    grid-template-columns: 1fr;
  }
  
  .feature-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

/* 超小屏幕 */
@media (max-width: 480px) {
  :root {
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
  }
  
  .hero-content {
    padding: var(--spacing-lg);
    margin: 0 var(--spacing-sm);
  }
  
  .feature-content {
    padding: var(--spacing-lg);
  }
}

/* ========================================
   11. 动画效果
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease-out;
}

/* ========================================
   12. 工具类
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.banner-grid.traffic-mode .banner-item:nth-child(6),
.banner-grid.police-mode .banner-item:nth-child(6),
.banner-grid.pipeline-mode .banner-item:nth-child(6),
.banner-grid.emergency-mode .banner-item:nth-child(6),
.banner-grid.park-mode .banner-item:nth-child(6),
.banner-grid.logistics-mode .banner-item:nth-child(6),
.banner-grid.security-mode .banner-item:nth-child(6),
.banner-grid.cleaning-mode .banner-item:nth-child(6) {
  background-position: 33.33% 100%;
}

.banner-grid.traffic-mode .banner-item:nth-child(7),
.banner-grid.police-mode .banner-item:nth-child(7),
.banner-grid.pipeline-mode .banner-item:nth-child(7),
.banner-grid.emergency-mode .banner-item:nth-child(7),
.banner-grid.park-mode .banner-item:nth-child(7),
.banner-grid.logistics-mode .banner-item:nth-child(7),
.banner-grid.security-mode .banner-item:nth-child(7),
.banner-grid.cleaning-mode .banner-item:nth-child(7) {
  background-position: 66.66% 100%;
}

.banner-grid.traffic-mode .banner-item:nth-child(8),
.banner-grid.police-mode .banner-item:nth-child(8),
.banner-grid.pipeline-mode .banner-item:nth-child(8),
.banner-grid.emergency-mode .banner-item:nth-child(8),
.banner-grid.park-mode .banner-item:nth-child(8),
.banner-grid.logistics-mode .banner-item:nth-child(8),
.banner-grid.security-mode .banner-item:nth-child(8),
.banner-grid.cleaning-mode .banner-item:nth-child(8) {
  background-position: 100% 100%;
}

.banner-item:hover {
  transform: scale(1.05);
  z-index: 2;
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.banner-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  transition: background 0.3s ease;
}

.banner-item:hover .banner-content {
  background: rgba(0, 0, 0, 0.2);
}

.banner-content h3 {
  color: white;
  font-size: 1.8em;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  margin: 0;
  transition: transform 0.3s ease;
}

.banner-item:hover .banner-content h3 {
  transform: scale(1.1);
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}



/* 技术特色展示板块 */
.features-showcase {
  padding: 80px 0;
  background-color: #fff;
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.feature-item {
  text-align: center;
  padding: 30px 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
}

.feature-item h4 {
  font-size: 20px;
  font-weight: 600;
  color: #333;
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* 平台项目板块 */
.platform-section {
  padding: 60px 5%;
  background: #fff;
}

.center-title {
  text-align: center !important;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.platform-item {
  padding: 30px;
  border-radius: 12px;
  background: #f8f9fa;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e2e8f0;
}

.platform-item:hover {
  background: #3498db;
  color: #fff;
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(52, 152, 219, 0.2);
}

.platform-item:hover h3,
.platform-item:hover p {
  color: inherit;
}

/* 公告区域 */
.announcement-box {
  max-width: 1200px;
  margin: 40px auto;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 12px;
}

.announcement-content {
  display: none;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

.announcement-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}



/* 关于我们板块 */
.about-section {
  padding: 80px 5%;
  background: #f9fafb;
  position: relative;
  overflow: hidden;
}

/* 平台项目板块 */
.platform-section {
  padding: 80px 5%;
  background: #fff;
  position: relative;
}

/* 平台容器样式 */
.platform-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 添加装饰元素 */
.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, rgba(52, 152, 219, 0.05), rgba(52, 152, 219, 0.02));
  z-index: 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #2d3748;
  text-align: left;
  margin: 0 0 15px 0;
  position: relative;
  display: inline-block;
  padding-bottom: 10px;
  z-index: 1;
}



.section-subtitle {
  font-size: 1.25rem;
  color: #4a5568;
  text-align: left;
  margin: 0 0 40px 0;
  opacity: 0.9;
  font-weight: 400;
  z-index: 1;
  position: relative;
}

.about-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.about-content {
  display: flex;
  gap: 50px;
  align-items: center;
  flex-wrap: wrap;
}

.about-images {
  width: 45%;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-image {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  transition: all 0.3s ease;
  overflow: hidden;
  transform: translateY(0);
}

.about-image-secondary {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  transition: all 0.3s ease;
  overflow: hidden;
  transform: translateY(0);
}

.about-image-secondary:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.about-image:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.about-text {
  flex: 1;
  min-width: 300px;
  line-height: 1.8;
  color: #4a5568;
  font-size: 1.05rem;
}

.about-text p {
  margin-bottom: 25px;
  letter-spacing: 0.3px;
  text-align: justify;
  text-justify: inter-word;
}

.business-scope {
  margin-top: 40px;
  padding: 25px 30px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  border-left: 4px solid #3498db;
  transition: all 0.3s ease;
}

.business-scope:hover {
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.business-scope h4 {
  color: #2b6cb0;
  margin-bottom: 20px;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.business-scope ul {
  list-style-type: none;
  padding-left: 0;
}

.business-scope li {
  position: relative;
  margin-bottom: 15px;
  padding-left: 30px;
  transition: all 0.2s ease;
}

.business-scope li:hover {
  transform: translateX(5px);
  color: #2b6cb0;
}

.business-scope li::before {
  content: '●';
  position: absolute;
  left: 8px;
  color: #3498db;
  font-size: 0.7em;
  transform: translateY(0.3em);
  transition: all 0.2s ease;
}

.business-scope li:hover::before {
  color: #2b6cb0;
  font-size: 0.8em;
}

/* 平台项目板块样式 */
.platform-section {
  margin-top: 60px;
  padding: 50px 5%;
  background-color: #fff;
}

.platform-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 平台项目网格布局 */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-bottom: 40px;
}

/* 平台项目项样式 */
.platform-item {
  padding: 30px 25px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 12px;
  border: 2px solid transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.platform-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(52, 152, 219, 0.05), rgba(52, 152, 219, 0.02));
  z-index: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.platform-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(52, 152, 219, 0.15);
  border-color: #3498db;
}

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

.platform-item h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #000000;
  margin-bottom: 15px;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
  text-align: center;
}

.platform-item:hover h3 {
  color: #ffffff;
}

.platform-item p {
  font-size: 0.95rem;
  color: #4a5568;
  line-height: 1.6;
  position: relative;
  z-index: 1;
  transition: color 0.3s ease;
  text-align: center;
}

.platform-item:hover p {
  color: #2c3e50;
}

.platform-item p.justify-text {
  text-align: justify;
  text-justify: inter-word;
}

/* 公告内容区域样式 */
.announcement-box {
  background: #f8fafc;
  border-radius: 12px;
  padding: 25px 35px;
  border-left: 4px solid #3498db;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.announcement-content {
  display: none;
  padding: 0;
  margin: 0;
  animation: fadeIn 0.3s ease;
}

.announcement-content.active {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.announcement-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #2b6cb0;
  margin-bottom: 15px;
  margin-top: 0;
}

.announcement-content p {
  font-size: 1rem;
  color: #4a5568;
  margin-bottom: 12px;
  line-height: 1.7;
  text-align: justify;
  text-justify: inter-word;
}

/* 鹰眼巡弋案例样式 */
.hawk-eye-section {
  background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
  padding: 100px 0;
  color: white;
  position: relative;
  overflow: hidden;
}

.hawk-eye-section .section-title {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #00d4ff, #0099ff, #00ffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
  letter-spacing: 2px;
  position: relative;
}

/* .hawk-eye-section .section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, transparent, #00d4ff, transparent);
  border-radius: 2px;
} */

.hawk-eye-section .section-subtitle {
  font-size: 20px;
  color: #b3e5fc;
  font-weight: 400;
  opacity: 0.9;
  letter-spacing: 1px;
}

.hawk-eye-section::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="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hawk-eye-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 80px 0;
  position: relative;
  z-index: 1;
}

.hawk-eye-image {
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.hawk-eye-image:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(100, 181, 246, 0.3);
}

.hawk-eye-main-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.hawk-eye-main-img:hover {
  transform: scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.hawk-eye-caption {
  margin-top: 20px;
  font-size: 18px;
  font-weight: 600;
  color: #64b5f6;
  letter-spacing: 0.5px;
}

.hawk-eye-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin: 80px 0;
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.hawk-feature-card {
  background: rgba(255, 255, 255, 0.08);
  padding: 35px 30px;
  border-radius: 20px;
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  flex-direction: column;
}

.hawk-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(100, 181, 246, 0.1), transparent);
  transition: left 0.5s ease;
}

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

.hawk-feature-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(100, 181, 246, 0.4);
}

.hawk-feature-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
}

.hawk-feature-card h3 {
  color: #64b5f6;
  font-size: 22px;
  font-weight: 700;
  margin: 0;
}

.hawk-feature-badge {
  background: linear-gradient(135deg, #64b5f6, #42a5f5);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hawk-feature-card h4 {
  color: #90caf9;
  font-size: 16px;
  margin-bottom: 20px;
  font-weight: 500;
}

.hawk-feature-card p {
  color: #e3f2fd;
  line-height: 1.8;
  margin-bottom: 25px;
  font-size: 15px;
  flex: 1;
  text-align: justify;
  text-justify: inter-word;
}

.hawk-feature-stats {
  display: flex;
  gap: 20px;
  margin-top: auto;
  justify-content: space-between;
  align-items: stretch;
  width: 100%;
}

.stat-item {
  text-align: center;
  background: rgba(100, 181, 246, 0.1);
  padding: 15px 20px;
  border-radius: 12px;
  border: 1px solid rgba(100, 181, 246, 0.2);
  flex: 1;
  min-width: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.stat-item strong {
  display: block;
  color: #64b5f6;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 5px;
}

.stat-item small {
  color: #90caf9;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hawk-eye-summary {
  text-align: center;
  max-width: 800px;
  margin: 80px auto 0;
  position: relative;
  z-index: 1;
}

.summary-content {
  background: rgba(255, 255, 255, 0.08);
  padding: 60px 40px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(15px);
}

.hawk-eye-summary h3 {
  color: #64b5f6;
  font-size: 28px;
  margin-bottom: 20px;
  font-weight: 700;
}

.hawk-eye-summary p {
  color: #e3f2fd;
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 30px;
  text-align: justify;
  text-justify: inter-word;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, #64b5f6, #42a5f5);
  color: white;
  padding: 16px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(100, 181, 246, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(100, 181, 246, 0.5);
  background: linear-gradient(135deg, #42a5f5, #1e88e5);
}

@media (max-width: 1024px) {
  .hawk-eye-section {
    padding: 80px 0;
  }
  
  .hawk-eye-showcase {
    grid-template-columns: 1fr;
    gap: 30px;
    margin: 60px 0;
  }
  
  .hawk-eye-features {
    grid-template-columns: 1fr;
    gap: 30px;
    margin: 60px 0;
  }
  
  .hawk-feature-card {
    padding: 30px;
  }
  
  .summary-content {
    padding: 40px 30px;
  }
}

@media (max-width: 1200px) {
  .hawk-eye-features {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0 20px;
  }
  
  .hawk-feature-card {
    padding: 25px 20px;
    min-height: 380px;
  }
}

@media (max-width: 992px) {
  .hawk-eye-features {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .hawk-eye-section {
    padding: 60px 0;
  }
  
  .hawk-eye-showcase {
    margin: 40px 0;
    gap: 20px;
  }
  
  .hawk-eye-image {
    padding: 20px;
  }
  
  .hawk-eye-main-img {
    height: 250px;
  }
  
  .hawk-eye-caption {
    font-size: 16px;
  }
  
  .hawk-feature-card {
    padding: 25px;
  }
  
  .hawk-feature-card h3 {
    font-size: 20px;
  }
  
  .hawk-feature-stats {
    flex-direction: column;
    gap: 10px;
  }
  
  .summary-content {
    padding: 30px 20px;
    margin: 0 20px;
  }
  
  .hawk-eye-summary h3 {
    font-size: 24px;
  }
  
  .hawk-eye-summary p {
    font-size: 16px;
  }
  
  .cta-button {
    padding: 14px 28px;
    font-size: 15px;
  }
}

/* 响应式样式 */
@media (max-width: 768px) {
  .about-section,
  .platform-section {
    padding: 60px 3%;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
  
  .news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  
  .latest-news {
    font-size: 1.8rem;
  }
  
  .about-content {
    flex-direction: column;
    gap: 30px;
  }
  
  .about-images {
    width: 100%;
  }
  
  .about-image,
  .about-image-secondary {
    width: 100%;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .about-text {
    font-size: 1rem;
  }
  
  .business-scope {
    padding: 20px 25px;
  }
}

/* 内容区块样式 */
.content-section {
  margin-top: 60px;
  padding: 50px 5%;
  background-color: #fff;
}

/* 新闻容器样式 */
.news-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* 新闻头部样式 */
.news-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 15px;
  border-bottom: 2px solid #e8f4fd;
}

.latest-news {
  font-size: 28px;
  font-weight: 600;
  color: #2c3e50;
  position: relative;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.3;
  margin-bottom: 20px;
}

.latest-news::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -15px;
  width: 100%;
  height: 3px;
  background: linear-gradient(135deg, #3498db, #2c3e50);
  border-radius: 2px;
}

.view-more {
  color: #3498db;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.view-more:hover {
  color: #2980b9;
  transform: translateX(5px);
}

.arrow-right {
  margin-left: 5px;
  transition: transform 0.3s ease;
}

.view-more:hover .arrow-right {
  transform: translateX(3px);
}

/* 新闻链接容器 */
.news-link {
  display: block;
  text-decoration: none;
  margin-bottom: 25px;
  transition: transform 0.3s ease;
}

.news-link:hover {
  transform: translateY(-2px);
}



/* 响应式设计 */
@media (max-width: 1024px) {
  .content-section {
    padding: 40px 4%;
  }
  
  .news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  
  .latest-news {
    font-size: 1.8rem;
  }
  
  .news-content {
    gap: 25px;
  }
  
  .news-image {
    min-width: 220px;
    height: 160px;
  }
}

@media (max-width: 768px) {
  .content-section {
    padding: 30px 3%;
  }
  
  .latest-news {
    font-size: 1.6rem;
    padding-left: 1rem;
  }
  
  .news-content {
    flex-direction: column;
    gap: 20px;
  }
  
  .news-image {
    width: 100%;
    min-width: unset;
    height: 200px;
  }
  
  .article-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
  }
  
  .article-text p {
    font-size: 0.95rem;
  }
  
  .news-link {
    margin-bottom: 20px;
  }
  
  .view-more {
    font-size: 0.9rem;
    padding: 6px 14px;
  }
}

@media (max-width: 480px) {
  .content-section {
    padding: 20px 5%;
  }
  
  .latest-news {
    font-size: 1.4rem;
  }
  
  .news-article {
    padding: 20px;
  }
  
  .news-image {
    height: 160px;
  }
  
  .article-title {
    font-size: 1.2rem;
  }
}

@media (min-width: 1201px) {
  .news-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }
}

@media (max-width: 1200px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
}

@media (max-width: 768px) {
  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .news-showcase {
    padding: 50px 0;
  }
  
  .news-card {
    margin: 0 10px;
  }
  
  .news-content {
    padding: 20px;
  }
  
  .news-title {
    font-size: 1.25rem;
  }
  
  .news-excerpt {
    font-size: 0.9rem;
  }
}

@media (max-width: 576px) {
  .news-container {
    padding: 0 15px;
  }
  
  .news-grid {
    gap: 15px;
  }
  
  .news-card {
    margin: 0;
  }
  
  .news-content {
    padding: 15px;
  }
  
  .news-title {
    font-size: 1.1rem;
  }
  
  .news-excerpt {
    font-size: 0.85rem;
  }
}

@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .feature-item {
    padding: 25px 15px;
  }
  
  .feature-icon {
    width: 70px;
    height: 70px;
  }
  
  .product-features-grid-v2 {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 20px;
  }
  
  .feature-card-modern {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
  }
  
  .features-showcase {
    padding: 50px 0;
  }
  
  .feature-item {
    padding: 20px 15px;
  }
  
  .feature-item h4 {
    font-size: 18px;
  }
  
  .feature-item p {
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .features-container {
    padding: 0 15px;
  }
  
  .feature-icon {
    width: 60px;
    height: 60px;
  }
}

/* 数据统计展示板块 */
.stats-showcase {
  background-color: #1a365d;
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.stat-box {
  background: rgba(100, 181, 246, 0.15);
  border: 1px solid rgba(100, 181, 246, 0.3);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s ease;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-box:hover {
  background: rgba(100, 181, 246, 0.25);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(100, 181, 246, 0.2);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  line-height: 1.2;
}

.stat-label {
  font-size: 1.1rem;
  color: #e3f2fd;
  font-weight: 400;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .stat-label {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .stat-box {
    padding: 30px 15px;
  }
}

/* 蓝色背景内容区域 */
    .blue-content-section {
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  padding: 60px 0;
  color: #fff;
}

.blue-content-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}

.blue-content-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #fff;
}

.blue-content-text p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.blue-content-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 50px;
}

.blue-feature {
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, background 0.3s ease;
}

.blue-feature:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
}

.blue-feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-left: auto;
  margin-right: auto;
}

.blue-feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
}

.blue-feature h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #fff;
}

.blue-feature p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

/* 蓝色区域响应式样式 */
@media (max-width: 992px) {
  .blue-content-features {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  
  .blue-content-text h2 {
    font-size: 2.2rem;
  }
}

/* 最新资讯新样式 */
.news-showcase {
  padding: 80px 0;
  background: #f8f9fa;
}

.news-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center !important;
  margin-bottom: 50px;
  display: block;
  width: 100%;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 15px;
}

.section-subtitle {
  font-size: 1.2rem;
  color: #718096;
  max-width: 600px;
  margin: 0 auto;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.news-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  text-decoration: none;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.news-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.news-card.featured .news-image-container {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.news-image-container {
  position: relative;
  overflow: hidden;
}

.news-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.news-card:hover .news-image {
  transform: scale(1.05);
}

.news-overlay {
  position: absolute;
  top: 20px;
  left: 20px;
}

.news-tag {
  background: #3498db;
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.news-content {
  padding: 30px;
}

.news-card.featured .news-content {
  padding: 40px;
}

.news-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  font-size: 0.9rem;
  color: #718096;
}

.news-category {
  color: #3498db;
  font-weight: 600;
}

.news-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 15px;
  line-height: 1.4;
}

.news-card.featured .news-title {
  font-size: 1.8rem;
}

/* 产品展示板块样式 */
.product-showcase {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafb 0%, #e8f4fd 100%);
}

.product-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.product-main-image {
  text-align: center;
  margin-bottom: 60px;
}

.product-showcase-container {
  text-align: center;
  margin-bottom: 50px;
}

.main-product-img {
  max-width: 600px;
  width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  transition: all 0.4s ease;
  background: transparent;
  border: none;
}

.main-product-img:hover {
  transform: scale(1.02);
  box-shadow: none;
}

.product-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  margin-top: 50px;
}

.product-feature-card {
  background: white;
  border-radius: 20px;
  padding: 40px 35px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.feature-image-wrapper {
  text-align: center;
  margin-bottom: 25px;
}

.feature-img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

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

.feature-title {
  font-size: 26px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 25px;
  text-align: center;
}

.feature-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 25px;
  padding: 20px;
  background: linear-gradient(135deg, #f8f9ff, #e8f2ff);
  border-radius: 12px;
  border-left: 4px solid #3498db;
}

.spec-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.spec-label {
  font-size: 12px;
  color: #666;
  margin-bottom: 4px;
  font-weight: 500;
}

.spec-value {
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
  background: white;
  padding: 6px 12px;
  border-radius: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.feature-list li {
  padding: 12px 0;
  padding-left: 25px;
  position: relative;
  color: #555;
  line-height: 1.6;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 12px;
  color: #3498db;
  font-weight: bold;
  font-size: 14px;
}

.highlight {
  color: #3498db;
  font-weight: 600;
}

.feature-content h4 {
  font-size: 24px;
  color: #2c3e50;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.feature-content h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(135deg, #3498db, #2c3e50);
  border-radius: 2px;
}

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

.feature-content li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  color: #555;
  line-height: 1.6;
}

.feature-content li::before {
  content: '•';
  color: #3498db;
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* 核心技术优势板块 */
.core-technologies {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.core-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.tech-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  align-items: start;
}

.tech-main-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
  align-items: start;
}

.tech-image-item {
  text-align: center;
}

.tech-main-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-main-img:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
  .core-technologies {
    padding: 50px 0;
  }

  .tech-main-images {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
  }

  .tech-main-img {
    max-width: 90%;
  }
}

.tech-image-caption {
  margin-top: 15px;
  font-size: 16px;
  color: #2c3e50;
  font-weight: 600;
}

.tech-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.tech-feature-card {
  background: white;
  border-radius: 16px;
  padding: 40px 30px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #f0f0f0;
}

.tech-feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.tech-icon {
  text-align: center;
  margin-bottom: 25px;
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto;
  transition: all 0.3s ease;
}

.icon-circle.satellite {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.icon-circle.network {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.icon-circle.precision {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.icon-text {
  font-size: 36px;
  color: white;
}

.tech-feature-card:hover .icon-circle {
  transform: scale(1.1);
}

.tech-content h4 {
  font-size: 24px;
  font-weight: 700;
  color: #2c3e50;
  text-align: center;
  margin-bottom: 20px;
}

.tech-specs {
  display: flex;
  justify-content: space-around;
  margin-bottom: 25px;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
}

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

.spec-label {
  display: block;
  font-size: 12px;
  color: #6c757d;
  margin-bottom: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spec-value {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
}

.tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tech-list li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.6;
  color: #495057;
}

.tech-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #28a745;
  font-weight: bold;
  font-size: 14px;
}

.tech-list li:last-child {
  margin-bottom: 0;
}

/* 产品展示响应式样式 */
@media (max-width: 768px) {
  .product-showcase {
    padding: 60px 0;
  }
  
  .product-showcase-container {
    margin-bottom: 30px;
  }
  
  .main-product-img {
    max-width: 90%;
  }
  
  .product-features-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
  }
  
  .product-feature-card {
    padding: 25px 20px;
  }
  
  .feature-img {
    max-width: 220px;
  }
  
  .feature-title {
    font-size: 22px;
    flex-direction: column;
    gap: 8px;
  }
  
  .feature-specs {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 15px;
  }
  
  .spec-item {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .feature-list li {
    padding: 10px 0;
    padding-left: 20px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .product-feature-card {
    padding: 20px 15px;
  }
  
  .feature-img {
    max-width: 180px;
  }
  
  .feature-title {
    font-size: 20px;
  }
  
  .feature-specs {
    padding: 12px;
  }
}

.news-excerpt {
  color: #4a5568;
  line-height: 1.6;
  margin-bottom: 20px;
}

.read-more {
  color: #3498db;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

.read-more:hover {
  color: #2980b9;
}

/* 新闻展示响应式样式 */
@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .news-card.featured {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .news-showcase {
    padding: 50px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .news-card.featured .news-content {
    padding: 25px;
  }
  
  .news-title {
    font-size: 1.2rem;
  }
  
  .news-card.featured .news-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.8rem;
  }
  
  .news-content {
    padding: 20px;
  }
  
  .news-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  .blue-content-section {
    padding: 40px 0;
  }
  
  .blue-content-features {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
  }
  
  .blue-content-text h2 {
    font-size: 2rem;
  }
  
  .blue-content-text p {
    font-size: 1.1rem;
  }
  
  .blue-feature {
    padding: 25px 20px;
  }
}

@media (max-width: 480px) {
  .blue-content-text h2 {
    font-size: 1.8rem;
  }
  
  .blue-content-text p {
    font-size: 1rem;
  }
  
  .blue-feature-icon {
    font-size: 2.5rem;
  }
  
  .blue-feature h4 {
    font-size: 1.3rem;
  }
}

@media (max-width: 768px) {
  .main-menu {
    display: none;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .hero-section {
    padding: 40px 20px 30px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
}