/* ========================================
   中富绿碳官网 - 主样式表
   ======================================== */

/* CSS 变量定义 */
:root {
  /* 主色调 */
  --primary-color: #E63946;
  --primary-dark: #C41E3A;
  --primary-light: #FF6B6B;

  /* 深色系 */
  --dark-bg: #1A1A2E;
  --dark-overlay: rgba(26, 26, 46, 0.85);

  /* 文字颜色 */
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #999999;
  --text-white: #FFFFFF;

  /* 背景色 */
  --bg-white: #FFFFFF;
  --bg-light: #F8F9FA;
  --bg-gray: #F5F5F5;

  /* 边框 */
  --border-color: #E5E5E5;
  --border-light: #EEEEEE;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* 容器宽度 */
  --container-width: 1200px;
  --container-padding: 20px;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
}

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

ul, ol {
  list-style: none;
}

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

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

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ========================================
   Header 导航
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.header.scrolled {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
}

/* 深色Banner页面：未滚动时使用白色文字 */
.header-dark:not(.scrolled) .logo-text {
  color: var(--text-white);
}

.header-dark:not(.scrolled) .nav-item {
  color: var(--text-white);
}

.header-dark:not(.scrolled) .nav-item:hover,
.header-dark:not(.scrolled) .nav-item-wrapper.active .nav-item {
  color: var(--text-white);
  opacity: 0.85;
}

.header-dark:not(.scrolled) .nav-arrow {
  color: var(--text-white);
}

.header-dark:not(.scrolled) .menu-toggle span {
  background: var(--text-white);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-svg {
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: bold;
  color: var(--text-primary);
  transition: color var(--transition-normal);
  white-space: nowrap;
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.nav-item-wrapper {
  position: relative;
}

.nav-item-wrapper.active .nav-item {
  color: var(--primary-color);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.nav-arrow {
  transition: transform var(--transition-fast);
  opacity: 0.5;
}

.nav-item-wrapper:hover .nav-arrow {
  transform: rotate(180deg);
  opacity: 1;
}

/* 下拉菜单面板 */
.dropdown-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 320px;
  background: var(--bg-white);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border-light);
  border-top: 2px solid var(--primary-color);
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: all 0.25s ease;
  z-index: 100;
}

.dropdown-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-panel-wide {
  min-width: 560px;
}

.dropdown-panel-wide .dropdown-content {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 4px;
}

.dropdown-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.dropdown-item:hover {
  background: var(--bg-light);
  color: var(--primary-color);
}

.dropdown-icon {
  flex-shrink: 0;
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.dropdown-item:hover .dropdown-icon {
  color: var(--primary-color);
}

.dropdown-item-content {
  flex: 1;
  min-width: 0;
}

.dropdown-item-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

.dropdown-item-desc {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
  line-height: 1.4;
}

.dropdown-item:hover .dropdown-item-desc {
  color: var(--text-secondary);
}

/* Header 右侧：电话 + CTA */
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.header-phone:hover {
  color: var(--primary-color);
}

.header-phone svg {
  flex-shrink: 0;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--primary-color);
  color: var(--text-white);
  font-size: 13px;
  font-weight: 500;
  border-radius: 100px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.header-cta:hover {
  background: var(--primary-dark);
  color: var(--text-white);
}

/* 深色Banner时的Header右侧 */
.header-dark:not(.scrolled) .header-phone {
  color: rgba(255, 255, 255, 0.8);
}

.header-dark:not(.scrolled) .header-phone:hover {
  color: var(--text-white);
}

.header-dark:not(.scrolled) .header-cta {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.header-dark:not(.scrolled) .header-cta:hover {
  background: var(--text-white);
  color: var(--text-primary);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   首页 Hero Banner
   ======================================== */
.hero-banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 50%, #f0f4f8 100%);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(180deg, #fff 0%, #f5f7fa 100%);
  z-index: 0;
}

.hero-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  padding-top: 80px;
}

.hero-content {
  flex: 1;
  max-width: 500px;
}

.hero-title {
  font-size: 52px;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 40px;
  line-height: 1.2;
  letter-spacing: 2px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

.hero-slogan {
  margin-top: 20px;
  font-size: 18px;
  color: var(--primary-color);
  letter-spacing: 2px;
}

.hero-illustration {
  flex: 0 0 55%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero-illustration img {
  max-width: 100%;
  height: auto;
  max-height: 600px;
  object-fit: contain;
}

/* ========================================
   AI Agent 模块（首页 Hero 区域）
   ======================================== */
.ai-agent-widget {
  flex: 0 0 480px;
  max-width: 480px;
  background: var(--bg-white);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ai-agent-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.ai-agent-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #FFF0F1 0%, #FFD6DA 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-agent-title-group {
  flex: 1;
  min-width: 0;
}

.ai-agent-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.3;
}

.ai-agent-highlight {
  background: linear-gradient(135deg, var(--primary-color) 0%, #FF6B6B 50%, #FF8E53 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.ai-agent-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ai-agent-input-wrapper {
  position: relative;
  background: #F7F8FA;
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.ai-agent-input-wrapper:hover {
  border-color: var(--primary-color);
}

.ai-agent-input-wrapper:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
}

.ai-agent-textarea {
  width: 100%;
  min-height: 100px;
  padding: 16px;
  padding-bottom: 50px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  resize: none;
  outline: none;
  line-height: 1.6;
}

.ai-agent-textarea::placeholder {
  color: var(--text-light);
}

.ai-agent-send-btn {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-color) 0%, #FF6B6B 100%);
  border: none;
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.3);
}

.ai-agent-send-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(230, 57, 70, 0.4);
}

.ai-agent-quick-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-agent-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: #FFF5F5;
  border: 1px solid #FFD6DA;
  border-radius: 20px;
  font-size: 13px;
  color: var(--primary-color);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
  white-space: nowrap;
}

.ai-agent-tag:hover {
  background: #FFD6DA;
  border-color: var(--primary-color);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.ai-agent-tag svg {
  color: var(--primary-color);
  flex-shrink: 0;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--text-white);
  border: 1px solid var(--text-white);
}

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

.btn-outline-white {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-outline-white:hover {
  background: var(--bg-light);
  border-color: var(--text-secondary);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--text-secondary);
}

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

.btn-outline-primary {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

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

.btn-outline-red {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  border-radius: var(--radius-xl);
  padding: 10px 24px;
}

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

/* ========================================
   板块标题
   ======================================== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 32px;
  font-weight: bold;
  color: var(--text-primary);
  margin-bottom: 15px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ========================================
   业务领域
   ======================================== */
.business-section {
  background: var(--bg-white);
}

.business-tabs {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.business-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: var(--radius-xl);
  background: transparent;
}

.business-tab svg {
  opacity: 0.7;
}

.business-tab:hover {
  color: var(--primary-color);
}

.business-tab:hover svg {
  opacity: 1;
  stroke: var(--primary-color);
}

.business-tab.active {
  color: var(--text-white);
  background: var(--primary-color);
}

.business-tab.active svg {
  opacity: 1;
  stroke: var(--text-white);
}

.business-cards {
  display: grid;
  grid-template-columns: 1fr;
}

.business-cards-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.business-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-gray);
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.business-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.business-card-content {
  padding: 20px 24px 28px;
  text-align: center;
  background: var(--bg-white);
}

.business-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

/* ========================================
   技术产品
   ======================================== */
.products-section {
  background: var(--bg-light);
}

.product-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.product-tab {
  padding: 10px 24px;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.product-tab:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.product-tab.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-white);
}

.product-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.product-video {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, #1a2a4a 0%, #2a3a5a 100%);
}

.product-video img {
  width: 100%;
  height: auto;
  display: block;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.play-btn svg {
  color: var(--primary-color);
  margin-left: 3px;
}

.play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--primary-color);
}

.play-btn:hover svg {
  color: var(--text-white);
}

.product-info h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.product-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

.product-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.product-feature {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.product-feature::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary-color);
  border-radius: 50%;
}

.product-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* ========================================
   数据统计
   ======================================== */
.stats-section {
  position: relative;
  background: var(--bg-white);
  padding-bottom: 0;
}

.stats-cards {
  position: relative;
  z-index: 2;
  padding: 50px 0 80px;
  background: var(--bg-white);
}

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

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px 20px;
  background: var(--bg-white);
  border: 2px solid var(--primary-color);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
}

.stat-card .stat-number {
  font-size: 42px;
  font-weight: bold;
  color: var(--primary-color);
  line-height: 1;
  display: inline;
}

.stat-card .stat-suffix {
  display: inline;
  font-size: 18px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 4px;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 10px;
}

.stats-bg {
  position: relative;
  height: 600px;
  overflow: hidden;
  margin-top: -120px;
}

.stats-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========================================
   关于我们
   ======================================== */
.about-section {
  background: var(--bg-white);
}

.about-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-content h3 {
  font-size: 28px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 30px;
}

.about-contact {
  display: flex;
  align-items: center;
  gap: 30px;
}

.about-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
}

.about-phone svg {
  stroke: var(--primary-color);
}

/* ========================================
   新闻资讯
   ======================================== */
.news-section {
  background: var(--bg-light);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.news-card-image {
  height: 180px;
  overflow: hidden;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.news-card-content {
  padding: 20px;
}

.news-card-date {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
}

.news-card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ========================================
   合作伙伴
   ======================================== */
.partners-section {
  padding: 50px 0;
  background: var(--bg-white);
  border-top: 1px solid var(--border-light);
}

.partners-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
}

.partner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.partner-logo {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.partner-logo.sungrow {
  color: #FF6600;
}

.partner-item span {
  font-size: 12px;
  color: var(--text-light);
}

/* ========================================
   合作伙伴无限滚动
   ======================================== */
.partners-marquee-section {
  padding: 60px 0 50px;
  background: var(--bg-white);
  border-top: 1px solid var(--border-light);
  overflow: hidden;
}

.marquee-wrapper {
  overflow: hidden;
  margin-top: 40px;
}

.marquee-track {
  display: flex;
  animation: marquee 30s linear infinite;
  width: max-content;
}

.marquee-item {
  flex-shrink: 0;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.marquee-item-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.marquee-item:hover .marquee-item-name {
  color: var(--primary-color);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--dark-bg);
  padding: 50px 0 30px;
  color: var(--text-white);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.8fr repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

/* Footer 品牌区 */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo span {
  font-size: 18px;
  font-weight: bold;
  color: var(--text-white);
}

.footer-slogan {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.footer-column h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-white);
  position: relative;
}

.footer-column h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 24px;
  height: 2px;
  background: var(--primary-color);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.footer-contact {
  display: flex;
  gap: 30px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}

.footer-contact-item svg {
  opacity: 0.7;
}

/* ========================================
   页面 Banner
   ======================================== */
.page-banner {
  position: relative;
  height: 350px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--dark-overlay);
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--text-white);
}

.page-banner-en {
  font-size: 38px;
  font-weight: 300;
  letter-spacing: 6px;
  margin-bottom: 10px;
}

.page-banner-cn {
  font-size: 22px;
  font-weight: 500;
}

/* ========================================
   时间线 (关于我们页面)
   ======================================== */
.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 60px;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  padding: 30px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.timeline-year {
  font-size: 36px;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.timeline-image {
  width: 45%;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 3px solid var(--bg-white);
}

/* ========================================
   解决方案
   ======================================== */
.solution-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  position: relative;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
}

.solution-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.solution-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-white);
  text-align: center;
  padding: 20px;
}

.solution-card-title {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 10px;
}

/* ========================================
   案例展示
   ======================================== */
.case-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 40px;
}

.case-card-header {
  background: linear-gradient(135deg, var(--dark-bg) 0%, #2d2d4a 100%);
  padding: 30px;
  color: var(--text-white);
}

.case-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px;
}

.case-section-title {
  font-size: 18px;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-section-title::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--primary-color);
}

/* ========================================
   联系我们
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info {
  background: var(--bg-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-info h3 {
  font-size: 28px;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  flex-shrink: 0;
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  min-height: 400px;
  background: var(--bg-light);
}

/* ========================================
   招聘信息
   ======================================== */
.job-list {
  margin-top: 60px;
}

.job-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.job-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.job-title {
  font-size: 20px;
  font-weight: 600;
}

.job-tags {
  display: flex;
  gap: 10px;
}

.job-tag {
  padding: 4px 12px;
  background: var(--bg-light);
  border-radius: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

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

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.6s ease;
}

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

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }

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

  .hero-title {
    font-size: 42px;
  }

  .ai-agent-widget {
    flex: 0 0 420px;
    max-width: 420px;
    padding: 24px;
  }
}

@media (max-width: 992px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item {
    color: var(--text-primary);
    padding: 12px 20px;
  }

  .nav-item-wrapper {
    width: 100%;
  }

  .nav-item-wrapper .nav-item {
    justify-content: space-between;
    width: 100%;
  }

  .nav-item-wrapper.mobile-open .nav-arrow {
    transform: rotate(180deg);
    opacity: 1;
  }

  .dropdown-panel-wide .dropdown-content {
    grid-template-columns: 1fr;
  }

  .menu-toggle {
    display: flex;
  }

  .header-right {
    display: none;
  }

  .dropdown-panel {
    display: none;
    position: static;
    min-width: auto;
    box-shadow: none;
    border: none;
    border-top: none;
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0 0 0 20px;
    background: var(--bg-light);
  }

  .mobile-open .dropdown-panel {
    display: block;
  }

  .nav-item-wrapper:hover .dropdown-panel {
    opacity: 0;
    visibility: hidden;
  }

  .mobile-open .dropdown-panel,
  .dropdown-panel.show {
    opacity: 1;
    visibility: visible;
  }

  .hero-banner .container {
    flex-direction: column;
    text-align: center;
    padding-top: 120px;
  }

  .hero-content {
    max-width: 100%;
    margin-bottom: 40px;
  }

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

  .hero-illustration {
    flex: none;
    width: 100%;
  }

  .ai-agent-widget {
    flex: none;
    max-width: 100%;
    width: 100%;
  }

  .business-cards,
  .business-cards-panel,
  .news-grid,
  .solution-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-content,
  .about-preview,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

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

  .case-card-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
  }

  .ai-agent-widget {
    padding: 20px;
  }

  .ai-agent-title {
    font-size: 18px;
  }

  .ai-agent-textarea {
    min-height: 80px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .page-banner {
    height: 280px;
  }

  .page-banner-en {
    font-size: 26px;
    letter-spacing: 4px;
  }

  .business-tabs {
    gap: 10px;
  }

  .business-tab {
    padding: 8px 16px;
    font-size: 13px;
  }

  .business-cards,
  .business-cards-panel,
  .news-grid,
  .solution-cards {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-card {
    padding: 20px 15px;
  }

  .stat-card .stat-number {
    font-size: 32px;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-contact {
    flex-direction: column;
    gap: 15px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .about-contact {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .partners-grid {
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 60px;
  }

  .hero-title {
    font-size: 28px;
  }

  .ai-agent-widget {
    padding: 16px;
    gap: 14px;
  }

  .ai-agent-icon {
    width: 44px;
    height: 44px;
  }

  .ai-agent-icon svg {
    width: 26px;
    height: 26px;
  }

  .ai-agent-title {
    font-size: 16px;
  }

  .ai-agent-quick-tags {
    flex-direction: column;
  }

  .ai-agent-tag {
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-card .stat-number {
    font-size: 28px;
  }

  .product-content {
    padding: 24px;
  }

  .product-actions {
    flex-direction: column;
    gap: 12px;
  }

  .product-actions .btn {
    width: 100%;
  }
}

/* ========================================
   关于我们页面专属样式
   ======================================== */

/* 公司简介区块 */
.about-intro-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-intro-video {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-intro-video img {
  width: 100%;
  height: auto;
}

.about-intro-text h3 {
  font-size: 26px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.about-intro-subtitle {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.about-intro-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.about-stats-row {
  display: flex;
  gap: 40px;
  margin-bottom: 24px;
}

.about-stat-item {
  text-align: left;
}

.about-stat-item .about-stat-number {
  font-size: 32px;
  font-weight: bold;
  color: var(--primary-color);
}

.about-stat-item .about-stat-number span {
  font-size: 18px;
}

.about-stat-item .about-stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.about-arrow-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  padding: 0;
}

/* 使命愿景横幅 */
.mission-banner {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
}

.mission-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 46, 0.7);
}

.mission-content {
  position: relative;
  z-index: 1;
  color: var(--text-white);
}

.mission-content h2 {
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 6px;
  margin-bottom: 20px;
}

.mission-content p {
  font-size: 15px;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.9;
  line-height: 1.8;
}

/* 新版时间线 */
.timeline-section {
  background: var(--bg-white);
}

.timeline-wrapper {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 60px;
  width: 2px;
  background: var(--primary-color);
  transform: translateX(-50%);
}

.timeline-line::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 2px;
}

.timeline-item-new {
  display: flex;
  align-items: flex-start;
  margin-bottom: 60px;
  position: relative;
}

.timeline-item-new.right {
  flex-direction: row;
}

.timeline-item-new.left {
  flex-direction: row-reverse;
}

.timeline-year-badge {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  background: var(--bg-white);
  padding: 5px 15px;
  z-index: 2;
}

.timeline-content-new {
  width: 45%;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.timeline-item-new.right .timeline-content-new {
  margin-right: auto;
  padding-right: 60px;
  flex-direction: row-reverse;
  text-align: right;
}

.timeline-item-new.left .timeline-content-new {
  margin-left: auto;
  padding-left: 60px;
  flex-direction: row;
  text-align: left;
}

.timeline-image-new {
  width: 180px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.timeline-image-new img {
  width: 100%;
  height: auto;
}

.timeline-text-new p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.timeline-more {
  text-align: center;
  margin-top: 20px;
}

.timeline-more-btn {
  color: var(--primary-color);
  font-size: 14px;
  text-decoration: underline;
}

/* 荣誉资质轮播 */
.honors-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #2d2d4a 100%);
  padding: 60px 0;
}

.honors-section .section-title {
  color: var(--text-white);
}

.honors-section .section-title::after {
  background: var(--text-white);
}

.honors-carousel {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.carousel-btn {
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.carousel-btn svg {
  stroke: rgba(255,255,255,0.8);
}

.carousel-btn:hover {
  background: rgba(255,255,255,0.2);
}

.honors-track-wrapper {
  flex: 1;
  overflow: hidden;
}

.honors-track {
  display: flex;
  gap: 20px;
  transition: transform 0.4s ease;
}

.honor-item {
  flex-shrink: 0;
  width: 200px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.honor-item img {
  width: 100%;
  height: auto;
}

/* 彩色合作伙伴 */
.partners-colored {
  padding: 40px 0;
}

.partners-grid-colored {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.partner-colored-item {
  width: 150px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.partner-colored-item span {
  color: var(--text-white);
  font-size: 14px;
  font-weight: 500;
}

.partner-colored-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* 业务布局 */
.business-layout-section {
  background: var(--bg-light);
}

.business-layout {
  text-align: center;
  display: flex;
  justify-content: center;
}

.radial-diagram {
  position: relative;
  width: 400px;
  height: 400px;
}

.radial-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(196, 30, 58, 0.3);
}

.radial-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.radial-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.radial-node span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.node-top {
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
}

.node-right {
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
}

.node-bottom {
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
}

.node-left {
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
}

.radial-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* 响应式适配 */
@media (max-width: 992px) {
  .about-intro-content {
    grid-template-columns: 1fr;
  }

  .timeline-item-new {
    flex-direction: column !important;
    align-items: center;
  }

  .timeline-year-badge {
    position: relative;
    left: auto;
    transform: none;
    margin-bottom: 20px;
  }

  .timeline-content-new {
    width: 100%;
    padding: 0 !important;
    flex-direction: column !important;
    text-align: center !important;
  }

  .timeline-line {
    display: none;
  }
}

@media (max-width: 768px) {
  .about-stats-row {
    flex-wrap: wrap;
    gap: 20px;
  }

  .mission-content h2 {
    font-size: 24px;
    letter-spacing: 3px;
  }

  .honors-carousel {
    flex-direction: column;
  }

  .carousel-btn {
    display: none;
  }

  .partners-grid-colored {
    gap: 12px;
  }

  .partner-colored-item {
    width: 120px;
    height: 50px;
  }
}

/* ========================================
   技术产品页面专属样式
   ======================================== */

/* 带插画的Banner */
.page-banner-tall {
  height: 500px;
  position: relative;
}

.banner-illustration {
  position: absolute;
  right: 10%;
  bottom: 0;
  max-width: 500px;
  z-index: 1;
}

.banner-illustration img {
  width: 100%;
  height: auto;
}

/* 产品网格 */
.products-list-section {
  background: var(--bg-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 220px;
  cursor: pointer;
}

.product-card-image {
  width: 100%;
  height: 100%;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.product-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--text-white);
}

.product-card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-card-desc {
  font-size: 13px;
  opacity: 0.9;
}

@media (max-width: 992px) {
  .banner-illustration {
    display: none;
  }

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

@media (max-width: 768px) {
  .page-banner-tall {
    height: 350px;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   解决方案页面
   ======================================== */

.solution-main-section {
  padding: 60px 0;
}

.solution-section-title {
  font-size: 24px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 40px;
}

.solution-main-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.solution-main-image img {
  width: 100%;
  height: auto;
}

.solutions-grid-section {
  padding: 0 0 60px;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 200px;
  cursor: pointer;
}

.solution-card-image {
  width: 100%;
  height: 100%;
}

.solution-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.solutions-grid .solution-card-overlay {
  position: absolute;
  top: auto;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--text-white);
  display: block;
  text-align: left;
}

.solution-card-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}

.solution-card-desc {
  font-size: 13px;
  opacity: 0.9;
}

/* 合作伙伴 - Logo网格 */
.partners-logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.partner-logo-item {
  text-align: center;
}

.partner-logo-wrap {
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  padding: 24px 16px;
  margin-bottom: 12px;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  background: var(--bg-white);
}

.partner-logo-wrap:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.partner-logo-wrap img {
  max-width: 120px;
  max-height: 50px;
  object-fit: contain;
}

.partner-logo-text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
}

.partner-logo-text small {
  font-size: 12px;
  font-weight: 400;
}

.partner-logo-category {
  font-size: 13px;
  color: var(--text-secondary);
}

@media (max-width: 992px) {
  .partners-logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .partners-logo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 合作伙伴 - 带分类 */
.partners-with-category {
  padding: 60px 0;
  background: var(--bg-white);
}

.partners-category-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.partner-category-item {
  text-align: center;
}

.partner-logo-box {
  border: none;
  border-radius: var(--radius-md);
  padding: 20px 16px;
  margin-bottom: 12px;
  transition: all var(--transition-normal);
}

.partner-logo-box:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.partner-logo-box span {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 1px;
}

.partner-category {
  font-size: 13px;
  color: var(--text-secondary);
}

@media (max-width: 992px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .solution-card {
    height: 180px;
  }

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

/* ========================================
   案例展示页面
   ======================================== */

.case-banner {
  position: relative;
  height: 400px;
}

.case-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.7) 0%, rgba(45, 45, 74, 0.5) 100%);
}

.case-banner-data {
  position: absolute;
  color: var(--text-white);
  z-index: 2;
}

.case-banner-data.data-left {
  top: 25%;
  left: 8%;
}

.case-banner-data.data-bottom-left {
  bottom: 25%;
  left: 5%;
}

.case-data-number {
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
}

.case-data-number span {
  font-size: 20px;
  margin-left: 4px;
}

.case-data-label {
  font-size: 14px;
  opacity: 0.8;
  margin-top: 8px;
}

.cases-section {
  padding: 60px 0;
}

.case-detail-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border-color);
}

.case-detail-card:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.case-detail-reverse {
  direction: rtl;
}

.case-detail-reverse > * {
  direction: ltr;
}

.case-detail-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 3px solid var(--primary-color);
}

.case-detail-intro {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.case-detail-section {
  margin-bottom: 24px;
}

.case-section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.case-section-title-red {
  color: var(--primary-color);
}

.case-step {
  margin-bottom: 16px;
}

.case-step h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.case-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 4px;
}

.case-btn {
  margin-top: 24px;
}

.case-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.case-detail-image img {
  width: 100%;
  height: auto;
}

@media (max-width: 992px) {
  .case-detail-card {
    grid-template-columns: 1fr;
  }

  .case-detail-reverse {
    direction: ltr;
  }

  .case-banner-data.data-left {
    top: 20%;
    left: 5%;
  }

  .case-banner-data.data-bottom-left {
    bottom: 20%;
    left: 5%;
  }

  .case-data-number {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .case-banner {
    height: 300px;
  }

  .case-detail-title {
    font-size: 18px;
  }

  .case-data-number {
    font-size: 28px;
  }
}

/* ========================================
   新闻中心页面
   ======================================== */

.news-list-section {
  padding: 60px 0;
}

.news-section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary-color);
  display: inline-block;
}

/* 公司新闻 - 特色布局 */
.news-featured-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 24px;
  margin-bottom: 24px;
}

.news-featured-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  min-height: 400px;
}

.news-featured-image {
  width: 100%;
  height: 100%;
}

.news-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-featured-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--text-white);
}

.news-featured-date {
  font-size: 13px;
  opacity: 0.8;
  margin-bottom: 8px;
}

.news-featured-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

/* 右侧新闻网格 */
.news-side-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-side-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
}

.news-side-image {
  height: 180px;
  overflow: hidden;
}

.news-side-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.news-side-content {
  padding: 16px;
}

.news-side-date {
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 8px;
}

.news-side-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 第二行新闻 */
.news-row-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-row-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 200px;
}

.news-row-image {
  width: 100%;
  height: 100%;
}

.news-row-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.news-row-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--text-white);
}

.news-row-date {
  font-size: 12px;
  opacity: 0.8;
  margin-bottom: 6px;
}

.news-row-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 行业资讯 */
.news-industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-industry-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.news-industry-image {
  height: 180px;
  overflow: hidden;
}

.news-industry-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.news-industry-content {
  padding: 16px;
}

.news-industry-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 992px) {
  .news-featured-grid {
    grid-template-columns: 1fr;
  }

  .news-featured-card {
    min-height: 300px;
  }

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

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

@media (max-width: 768px) {
  .news-side-grid {
    grid-template-columns: 1fr;
  }

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

  .news-industry-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   联系我们页面
   ======================================== */

.contact-section {
  padding: 60px 0;
}

.contact-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-map-area {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-map-area img {
  width: 100%;
  height: auto;
}

.contact-main-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.contact-main-title span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-light);
  margin-left: 12px;
}

.contact-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.contact-address {
  margin-bottom: 24px;
}

.contact-address p {
  font-size: 15px;
  color: var(--text-primary);
}

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.contact-info-item {
  text-align: left;
}

.contact-info-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 4px;
}

.contact-info-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.contact-arrow-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.contact-arrow-btn:hover {
  background: var(--primary-color);
  color: var(--text-white);
}

/* 招聘职位 */
.jobs-section {
  padding: 0 0 60px;
}

.job-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.job-card-header {
  background: var(--primary-color);
  padding: 16px 24px;
}

.job-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-white);
}

.job-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 24px;
}

.job-column h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.job-column ol {
  padding-left: 20px;
}

.job-column li {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
  list-style: decimal;
}

@media (max-width: 992px) {
  .contact-main-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .job-card-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .contact-info-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact-main-title {
    font-size: 22px;
  }

  .contact-main-title span {
    display: block;
    margin-left: 0;
    margin-top: 4px;
  }
}

/* ========================================
   生态伙伴页面
   ======================================== */

.partners-main-section {
  padding: 60px 0;
}

.partner-field {
  margin-bottom: 48px;
}

.partner-field:last-child {
  margin-bottom: 0;
}

.partner-field-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
  padding-left: 16px;
  border-left: 4px solid var(--primary-color);
}

.partner-field-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.partner-field-item {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  transition: all var(--transition-normal);
}

.partner-field-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.partner-field-item span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

@media (max-width: 992px) {
  .partner-field-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

/* ========================================
   子页面服务详情模板样式
   ======================================== */

/* 服务/平台定位区块 */
.service-position {
  padding: 80px 0 60px;
  background: var(--bg-white);
}

.service-position-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.service-position h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.service-position p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
}

/* 核心应用场景 */
.scenarios-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border-left: 4px solid var(--primary-color);
}

.scenario-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.scenario-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(230, 57, 70, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  margin-bottom: 16px;
}

.scenario-card h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.scenario-card-pain {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 10px;
  line-height: 1.7;
}

.scenario-card-solution {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 核心功能/模块表格 */
.features-section {
  padding: 80px 0;
  background: var(--bg-white);
}

.features-table-wrapper {
  overflow-x: auto;
}

.features-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.features-table thead th {
  background: var(--primary-color);
  color: var(--text-white);
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
}

.features-table tbody td {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.features-table tbody tr:last-child td {
  border-bottom: none;
}

.features-table tbody tr:nth-child(even) {
  background: var(--bg-light);
}

.features-table tbody tr:hover {
  background: rgba(230, 57, 70, 0.03);
}

.features-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  min-width: 180px;
}

/* 功能卡片网格（表格替代方案） */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
}

.feature-card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--primary-color);
  color: var(--text-white);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 14px;
}

.feature-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-card-value {
  font-size: 13px;
  color: var(--primary-color);
  margin-top: 10px;
  font-weight: 500;
}

/* 方案特点/优势 */
.advantages-section {
  padding: 80px 0;
  background: var(--bg-light);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

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

.advantage-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: rgba(230, 57, 70, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
}

.advantage-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 应用效果/数据统计（子页面版） */
.results-section {
  padding: 80px 0;
  background: var(--bg-white);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.result-card {
  text-align: center;
  padding: 24px 16px;
}

.result-card .result-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.result-card .result-suffix {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 2px;
}

.result-card .result-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 10px;
  line-height: 1.5;
}

/* 效果描述列表 */
.results-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.results-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.results-list-item::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary-color);
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.results-list-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* CTA 行动号召区块 */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--dark-bg) 0%, #2d2d4a 100%);
  text-align: center;
}

.cta-section h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin: 0 auto 30px;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* 子页面响应式 */
@media (max-width: 992px) {
  .scenarios-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

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

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

  .results-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .service-position {
    padding: 60px 0 40px;
  }

  .service-position h2 {
    font-size: 24px;
  }

  .scenarios-section,
  .features-section,
  .advantages-section,
  .results-section,
  .cta-section {
    padding: 60px 0;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cta-section h2 {
    font-size: 24px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .features-table td:first-child {
    min-width: 120px;
  }
}

@media (max-width: 480px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== Insights List ========== */
.insights-section {
  padding: 80px 0;
}

.insights-list {
  display: flex;
  flex-direction: column;
}

.insight-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.insight-item:hover {
  background: rgba(230,57,70,0.04);
  padding-left: 32px;
}

.insight-item:hover .insight-title {
  color: var(--primary-color);
}

.insight-title {
  flex: 1;
  font-size: 15px;
  line-height: 1.6;
  transition: color 0.3s ease;
}

.insight-arrow {
  margin-left: 16px;
  color: var(--text-secondary);
  font-size: 18px;
  transition: transform 0.3s ease;
}

.insight-item:hover .insight-arrow {
  transform: translateX(4px);
  color: var(--primary-color);
}

/* ========== Contact Section ========== */
.contact-section {
  padding: 80px 0;
  background: var(--bg-light);
}

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

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-text h4 {
  font-size: 15px;
  margin-bottom: 4px;
}

.contact-info-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-qrcode {
  text-align: center;
}

.contact-qrcode img {
  width: 200px;
  height: 200px;
  border-radius: 12px;
}

.contact-qrcode p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .insights-section {
    padding: 60px 0;
  }
  .insight-item {
    padding: 16px;
  }
}

/* ========================================
   零碳解决方案 Tab 切换
   ======================================== */

.zero-carbon-tabs {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 60px;
}

.zero-carbon-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.zero-carbon-tab:hover {
  border-color: var(--primary-color);
  background: var(--bg-light);
}

.zero-carbon-tab.active {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: var(--text-white);
}

.zero-carbon-content {
  animation: fadeIn 0.5s ease;
}

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

@media (max-width: 768px) {
  .zero-carbon-tabs {
    flex-direction: column;
    gap: 12px;
  }

  .zero-carbon-tab {
    padding: 14px 24px;
    font-size: 15px;
  }
}