/* =====================================================
   换电之城官网 - 主样式表
   深圳市换电之城技术有限公司 | Marketing Website
   重点：GEO + SEO + 视觉冲击 + 响应式
   ===================================================== */

/* ---------- CSS 变量 ---------- */
:root {
  /* 品牌色 */
  --ev-green: #00c853;
  --ev-green-light: #5efc82;
  --ev-green-dark: #009624;
  --ev-blue: #0066ff;
  --ev-blue-light: #4d9aff;
  --ev-blue-dark: #0041c2;
  --ev-cyan: #00e5ff;

  /* 深色主题 */
  --dark-950: #050812;
  --dark-900: #0a0e1a;
  --dark-800: #10162b;
  --dark-700: #18203d;
  --dark-600: #233056;

  /* 浅色主题 */
  --light-50: #f6f8fc;
  --light-100: #eef1f7;
  --light-200: #e2e7f0;
  --light-800: #3d4860;
  --light-900: #1a2236;

  /* 功能色 */
  --text-primary: var(--light-900);
  --text-secondary: #5c6580;
  --text-light: #ffffff;
  --text-muted: #9aa3b8;

  /* 尺寸 */
  --header-height: 76px;
  --container-max: 1280px;
  --section-py: 96px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* 动画 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  background: #ffffff;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ---------- 工具类 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-py) 0;
  position: relative;
}

.section-dark {
  background: var(--dark-900);
  color: var(--text-light);
}

.section-light {
  background: var(--light-50);
}

.section-white {
  background: #ffffff;
}

.section-title {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-title span {
  color: var(--ev-green);
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 56px;
}

.section-dark .section-subtitle {
  color: var(--text-muted);
}

.text-gradient {
  background: linear-gradient(135deg, var(--ev-green-light), var(--ev-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-4 {
  gap: 16px;
}

.gap-6 {
  gap: 24px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--ev-green), var(--ev-green-light));
  color: #000;
  box-shadow: 0 8px 24px rgba(0, 200, 83, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 200, 83, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline {
  border: 2px solid var(--ev-green);
  color: var(--ev-green);
}

.btn-outline:hover {
  background: var(--ev-green);
  color: #000;
}

.btn-large {
  padding: 18px 36px;
  font-size: 16px;
}

/* ---------- 顶部导航 ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(16px);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--ev-green);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
}

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

/* 导航下拉菜单 */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-item > .nav-link::after {
  bottom: -2px;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: rgba(10, 14, 26, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 8px 0;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 1000;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-link {
  display: block;
  padding: 12px 24px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
  text-align: center;
}

.nav-dropdown-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--ev-green);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: all var(--transition-base);
}

/* ---------- Hero 区域 ---------- */
.hero {
  min-height: 100vh;
  padding-top: var(--header-height);
  background: var(--dark-950);
  color: #fff;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(0, 200, 83, 0.12), transparent 50%),
              radial-gradient(circle at 70% 20%, rgba(0, 102, 255, 0.1), transparent 45%),
              linear-gradient(to bottom, transparent, var(--dark-950));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0 120px;
}

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

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(0, 200, 83, 0.12);
  border: 1px solid rgba(0, 200, 83, 0.3);
  border-radius: 100px;
  font-size: 14px;
  color: var(--ev-green-light);
  margin: 0 auto 20px;
  width: fit-content;
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--ev-green);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title-single {
  font-size: clamp(42px, 6vw, 64px);
  white-space: nowrap;
  line-height: 1.05;
  letter-spacing: -3px;
  margin-bottom: 32px;
  text-align: center;
}

.hero-highlight {
  background: linear-gradient(135deg, #00e5ff, #00c853);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
  font-weight: 900;
  padding: 0 4px;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--ev-green-light);
  line-height: 1;
}

.hero-stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  min-height: 500px;
  overflow: visible;
}

.hero-globe {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 500px;
  border-radius: 0;
  background: radial-gradient(circle at 75% 75%, rgba(0, 229, 255, 0.12), transparent 55%),
              radial-gradient(circle at 60% 60%, rgba(0, 200, 83, 0.08), transparent 50%);
  border: none;
  box-shadow: none;
  animation: none;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  overflow: visible;
}

.hero-globe img {
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  height: auto;
  filter: drop-shadow(0 0 40px rgba(0, 200, 83, 0.35));
  animation: float-reverse 6s ease-in-out infinite;
  object-fit: contain;
  object-position: bottom right;
}

.hero-globe-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, 0.15);
  animation: ring-expand 4s ease-out infinite;
}

/* ---------- 数据指标条 ---------- */
.metrics-bar {
  background: linear-gradient(135deg, var(--dark-800), var(--dark-700));
  border-top: 1px solid rgba(0, 200, 83, 0.15);
  border-bottom: 1px solid rgba(0, 200, 83, 0.15);
  padding: 48px 0;
  position: relative;
  z-index: 3;
}

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

.metric-card {
  text-align: center;
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition-base);
}

.metric-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 200, 83, 0.25);
}

.metric-number {
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--ev-green-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.metric-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ---------- 服务卡片 ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--light-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--ev-green), var(--ev-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  transform: translateY(-6px);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(0, 200, 83, 0.1), rgba(0, 102, 255, 0.1));
}

.service-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 解决方案 ---------- */
.solution-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.solution-tab {
  padding: 12px 24px;
  border-radius: 100px;
  background: #fff;
  border: 1px solid var(--light-200);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.solution-tab.active,
.solution-tab:hover {
  background: var(--ev-green);
  color: #000;
  border-color: var(--ev-green);
}

.solution-panel {
  display: none;
}

.solution-panel.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.solution-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--light-200);
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.solution-image {
  min-height: 360px;
  background: var(--dark-800);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.solution-content {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.solution-content h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
}

.solution-content p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.solution-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
}

.solution-feature::before {
  content: "✓";
  color: var(--ev-green);
  font-weight: 800;
  flex-shrink: 0;
}

/* ---------- 案例卡片 ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--light-200);
  transition: all var(--transition-base);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.1);
}

.case-image {
  height: 220px;
  overflow: hidden;
}

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

.case-card:hover .case-image img {
  transform: scale(1.08);
}

.case-body {
  padding: 24px;
}

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 200, 83, 0.1);
  color: var(--ev-green-dark);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.case-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

.case-meta {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--light-100);
  font-size: 13px;
  color: var(--text-secondary);
}

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

.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--light-200);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.news-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.news-image {
  height: 200px;
  background: linear-gradient(135deg, var(--dark-700), var(--dark-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ev-green-light);
  font-size: 48px;
  position: relative;
  overflow: hidden;
}

.news-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 200, 83, 0.15), rgba(0, 102, 255, 0.15));
}

.news-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-date {
  font-size: 13px;
  color: var(--ev-blue);
  font-weight: 600;
  margin-bottom: 10px;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.news-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.news-source {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--light-100);
}

/* ---------- 新闻详情 ---------- */
.news-detail {
  padding-top: 140px;
  padding-bottom: 80px;
}

.news-detail-header {
  max-width: 820px;
  margin: 0 auto 48px;
  text-align: center;
}

.news-detail-title {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
}

.news-detail-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 14px;
}

.news-detail-content {
  max-width: 820px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-primary);
}

.news-detail-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 48px 0 20px;
  color: var(--light-900);
}

.news-detail-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 14px;
}

.news-detail-content p {
  margin-bottom: 20px;
}

.news-detail-content ul {
  margin-bottom: 24px;
  padding-left: 24px;
  list-style: disc;
}

.news-detail-content li {
  margin-bottom: 10px;
}

.news-detail-content strong {
  color: var(--ev-green-dark);
}

.news-detail-content a {
  color: var(--ev-blue);
  text-decoration: underline;
}

/* ---------- 关于我们 - 时间轴 ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--ev-green), var(--ev-blue));
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--ev-green);
}

.timeline-date {
  font-size: 14px;
  color: var(--ev-blue);
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-item p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* 发展历程中的大会照片 */
.timeline-item-featured {
  background: rgba(0, 200, 83, 0.04);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-left: -20px;
  border: 1px solid rgba(0, 200, 83, 0.12);
}

.timeline-photo {
  margin: 12px 0 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.timeline-photo img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.timeline-photo:hover img {
  transform: scale(1.03);
}

/* ---------- 首页 - 政企联动板块 ---------- */
.government-support {
  overflow: hidden;
}

.gov-support-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.gov-support-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.gov-support-image img {
  width: 100%;
  height: auto;
  display: block;
}

.gov-support-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gov-support-caption span:first-child {
  font-size: 13px;
  font-weight: 700;
  color: var(--ev-green-light);
  letter-spacing: 2px;
}

.gov-support-caption span:last-child {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
}

.gov-support-content {
  padding: 20px 0;
}

.gov-support-content .section-title {
  margin-bottom: 20px;
}

.gov-support-lead {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
}

.gov-support-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.gov-support-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.gov-tag {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(0, 200, 83, 0.12);
  color: var(--ev-green-light);
  border: 1px solid rgba(0, 200, 83, 0.25);
}

/* ---------- 关于我们 - 资质/数据 ---------- */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about-stat-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  border: 1px solid var(--light-200);
}

.about-stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--ev-green);
}

.about-stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ---------- 资料下载 ---------- */
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.download-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--light-200);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.download-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.download-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 200, 83, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.download-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.download-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex: 1;
}

.download-card .btn {
  width: 100%;
}

/* ---------- CTA 区域 ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--dark-900), var(--dark-800));
  color: #fff;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 200, 83, 0.12), transparent 60%);
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-title {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 800;
  margin-bottom: 20px;
}

.cta-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--light-200);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 17px;
  font-weight: 600;
  text-align: left;
}

.faq-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--ev-green);
  transition: all var(--transition-base);
}

.faq-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-answer-inner {
  padding-bottom: 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--dark-950);
  color: #fff;
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  height: 44px;
  width: auto;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #fff;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--ev-green-light);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 13px;
}

.footer-bottom a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-bottom a:hover {
  color: var(--ev-green-light);
}

/* ---------- 表单 ---------- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--ev-green);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--light-200);
  margin-bottom: 20px;
}

.contact-info-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-info-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ---------- 动画 ---------- */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

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

@keyframes ring-expand {
  0% { width: 100%; height: 100%; opacity: 0.5; }
  100% { width: 160%; height: 160%; opacity: 0; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: 20px 0;
  font-size: 14px;
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--ev-blue);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- 合作伙伴 ---------- */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.partner-item {
  padding: 16px 24px;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-md);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.partner-item:hover {
  border-color: var(--ev-green);
  color: var(--ev-green-dark);
  transform: translateY(-2px);
}

/* ---------- 地图区域 ---------- */
.map-section {
  background: var(--dark-900);
  color: #fff;
  padding: 80px 0;
}

.map-container {
  background: var(--dark-800);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 200, 83, 0.15);
  padding: 40px;
  min-height: 500px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.map-left {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.map-right {
  display: flex;
  flex-direction: column;
}

/* 数据类型切换标签 */
.map-data-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.map-data-tab {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.map-data-tab:hover {
  border-color: rgba(0, 200, 83, 0.3);
  color: rgba(255, 255, 255, 0.9);
}

.map-data-tab.active {
  background: linear-gradient(135deg, rgba(0, 200, 83, 0.15), rgba(0, 229, 255, 0.1));
  border-color: var(--ev-green);
  color: var(--ev-green-light);
}

.map-svg {
  width: 100%;
  max-width: 100%;
  display: block;
}

.map-area-title {
  text-align: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--ev-green-light);
  margin-bottom: 24px;
  letter-spacing: 3px;
  transition: color var(--transition-fast);
}

.map-district {
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 1.5;
  stroke-linejoin: round;
  transition: all var(--transition-base);
  cursor: pointer;
}

/* 行政区底色（参照深圳市地形图配色，适配深色主题） */
.map-district[data-id="baoan"]   { fill: rgba(255, 214, 0, 0.10); }
.map-district[data-id="guangming"] { fill: rgba(255, 112, 67, 0.10); }
.map-district[data-id="longhua"]  { fill: rgba(41, 182, 246, 0.10); }
.map-district[data-id="longgang"]  { fill: rgba(171, 71, 188, 0.10); }
.map-district[data-id="pingshan"]  { fill: rgba(255, 214, 0, 0.10); }
.map-district[data-id="yantian"]   { fill: rgba(102, 187, 106, 0.10); }
.map-district[data-id="luohu"]    { fill: rgba(255, 112, 67, 0.10); }
.map-district[data-id="futian"]    { fill: rgba(255, 214, 0, 0.10); }
.map-district[data-id="nanshan"]   { fill: rgba(102, 187, 106, 0.10); }
.map-district[data-id="dapeng"]    { fill: rgba(171, 71, 188, 0.08); }

/* 已布局站点区域加深 */
.map-district.active[data-id="baoan"],
.map-district.active[data-id="pingshan"],
.map-district.active[data-id="futian"] { fill: rgba(255, 214, 0, 0.16); stroke: rgba(255, 214, 0, 0.45); }
.map-district.active[data-id="guangming"],
.map-district.active[data-id="luohu"]  { fill: rgba(255, 112, 67, 0.16); stroke: rgba(255, 112, 67, 0.45); }
.map-district.active[data-id="longhua"] { fill: rgba(41, 182, 246, 0.16); stroke: rgba(41, 182, 246, 0.45); }
.map-district.active[data-id="longgang"] { fill: rgba(171, 71, 188, 0.16); stroke: rgba(171, 71, 188, 0.45); }

.map-district:hover,
.map-district.active:hover {
  fill: url(#active-grad);
  stroke: var(--ev-green-light);
  stroke-width: 3;
  filter: drop-shadow(0 0 16px rgba(0, 200, 83, 0.5));
}

.map-label {
  fill: rgba(255, 255, 255, 0.95);
  font-family: var(--font-cn);
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
  paint-order: stroke fill;
  stroke: rgba(0, 0, 0, 0.55);
  stroke-width: 3.5px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  transition: all var(--transition-base);
}

.map-point {
  fill: var(--ev-cyan);
  filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.8));
  animation: pulse-dot 2s infinite;
  cursor: pointer;
}

.map-point-ring {
  fill: none;
  stroke: var(--ev-cyan);
  stroke-width: 1.5;
  opacity: 0;
  animation: ring-pulse 2s ease-out infinite;
}

@keyframes ring-pulse {
  0% { opacity: 0.6; r: 6; }
  100% { opacity: 0; r: 20; }
}

.map-info {
  margin-top: 0;
}

.map-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.map-info-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: all var(--transition-base);
}

.map-info-card:hover {
  background: rgba(0, 200, 83, 0.08);
  border-color: rgba(0, 200, 83, 0.2);
}

.map-info-number {
  font-size: 28px;
  font-weight: 800;
  color: var(--ev-green-light);
  transition: color var(--transition-fast);
}

.map-info-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ---------- 平台展示 ---------- */
.platform-showcase {
  background: var(--dark-900);
  color: #fff;
  padding: 80px 0;
}

.platform-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.platform-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 200, 83, 0.2);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

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

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

.platform-feature {
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.platform-feature:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 200, 83, 0.25);
}

.platform-feature h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.platform-feature p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ---------- 卡片无图标模式 ---------- */
.service-card.no-icon .service-icon {
  display: none;
}
.service-card.no-icon h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-left: 16px;
  border-left: 4px solid var(--ev-green);
  line-height: 1.4;
}
.service-card.no-icon {
  cursor: pointer;
}
.service-card.no-icon:hover {
  border-color: var(--ev-green);
}
.service-card.no-icon .card-arrow {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ev-green), var(--ev-green-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 16px;
  opacity: 0;
  transition: opacity var(--transition-base);
}
.service-card.no-icon:hover .card-arrow {
  opacity: 1;
}

/* ---------- 弹窗/模态框 ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity var(--transition-base);
}
.modal-overlay.active {
  display: flex;
  opacity: 1;
}
.modal-box {
  background: #fff;
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
  transform: scale(0.92);
  transition: transform var(--transition-base);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}
.modal-overlay.active .modal-box {
  transform: scale(1);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--light-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--light-200);
  color: var(--text-primary);
}
.modal-box h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
  padding-right: 40px;
}
.modal-box p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 12px;
}
.modal-box .modal-source {
  margin-top: 20px;
  padding: 16px;
  background: var(--light-50);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- 智慧管理平台轮播 ---------- */
.platform-carousel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.platform-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.platform-tab-btn {
  padding: 10px 20px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}
.platform-tab-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.platform-tab-btn.active {
  background: linear-gradient(135deg, var(--ev-green), var(--ev-green-light));
  color: #000;
  border-color: var(--ev-green);
}
.platform-display {
  background: var(--dark-800);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 200, 83, 0.15);
  overflow: hidden;
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.platform-slide {
  display: none;
  width: 100%;
  padding: 28px;
}
.platform-slide.active {
  display: grid;
  grid-template-columns: 1fr 200px;
  grid-template-rows: 1fr;
  align-items: center;
  gap: 28px;
  animation: fadeIn 0.5s ease;
}
.platform-slide img {
  grid-column: 1;
  grid-row: 1;
  width: 100%;
  height: 100%;
  max-height: 520px;
  border-radius: var(--radius-md);
  object-fit: contain;
  object-position: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}
.platform-slide-text {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  height: 100%;
  padding: 12px 0;
}
.platform-slide-label {
  font-size: 20px;
  font-weight: 800;
  color: var(--ev-green-light);
  margin: 0;
  line-height: 1.35;
}
.platform-slide-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin: 0;
}
.platform-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ev-green), var(--ev-cyan));
  width: 0%;
  transition: width 0.1s linear;
}

/* ---------- 新闻表格 ---------- */
.news-table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.news-page-size {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.news-page-size select {
  padding: 6px 12px;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
}
.news-search-box {
  position: relative;
  width: 320px;
  display: flex;
  align-items: center;
}
.news-search-box input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--light-200);
  border-radius: 100px;
  font-size: 14px;
  transition: border-color var(--transition-fast);
  background: #fff;
}
.news-search-box input:focus {
  outline: none;
  border-color: var(--ev-green);
  box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.1);
}
.news-search-box .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  pointer-events: none;
  color: var(--text-muted);
}
.news-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.news-table thead {
  background: var(--light-50);
}
.news-table th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--light-200);
  white-space: nowrap;
}
.news-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--light-100);
  vertical-align: middle;
}
.news-table tr:hover {
  background: var(--light-50);
}
.news-table .news-thumb {
  width: 60px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
}
.news-table .news-title-cell {
  font-weight: 600;
  color: var(--text-primary);
}
.news-table .news-title-cell a {
  color: inherit;
  transition: color var(--transition-fast);
}
.news-table .news-title-cell a:hover {
  color: var(--ev-green);
}
.news-table .btn-view {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 100px;
  background: var(--ev-green);
  color: #000;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.news-table .btn-view:hover {
  background: var(--ev-green-dark);
  color: #fff;
}
.news-table .news-source-tag {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.news-table .dl-type-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(0, 168, 107, 0.1);
  color: var(--ev-green-dark);
}
.news-table .news-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
}
.news-table .news-stats span {
  white-space: nowrap;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--light-50);
  font-weight: 500;
}
.news-table .news-stats .stat-read {
  color: var(--ev-blue-dark);
  background: rgba(0, 102, 255, 0.08);
}
.news-table .news-stats .stat-like {
  color: #c62828;
  background: rgba(229, 57, 53, 0.08);
}
.news-table .news-stats .stat-share {
  color: var(--ev-green-dark);
  background: rgba(0, 200, 83, 0.08);
}
.news-table .news-stats .stat-fav {
  color: #f57f17;
  background: rgba(245, 127, 23, 0.08);
}
.news-table .news-stats .stat-comment {
  color: #6a1b9a;
  background: rgba(106, 27, 154, 0.08);
}
.news-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
}
.news-pagination button {
  padding: 8px 14px;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #fff;
}
.news-pagination button:hover:not(:disabled) {
  border-color: var(--ev-green);
  color: var(--ev-green);
}
.news-pagination button.active {
  background: var(--ev-green);
  color: #000;
  border-color: var(--ev-green);
}
.news-pagination button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.news-no-result {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 16px;
}

/* ---------- 文章社交互动栏 ---------- */
.article-social-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--light-200);
  border-bottom: 1px solid var(--light-200);
  margin: 24px 0;
  flex-wrap: wrap;
}
.social-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--light-50);
  border: 1px solid var(--light-200);
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}
.social-btn:hover {
  border-color: var(--ev-green);
  color: var(--ev-green);
}
.social-btn.liked {
  background: rgba(0, 200, 83, 0.1);
  border-color: var(--ev-green);
  color: var(--ev-green);
}
.social-btn .social-icon {
  font-size: 16px;
}
.social-btn .social-count {
  font-weight: 600;
}

/* ---------- 转发下拉 ---------- */
.share-dropdown {
  position: relative;
}
.share-menu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 8px;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  padding: 12px;
  display: none;
  z-index: 100;
  min-width: 180px;
}
.share-menu::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #fff;
}
.share-menu.show {
  display: block;
}
.share-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.share-menu-item:hover {
  background: var(--light-50);
}
.share-wechat-qr {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 12px;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  padding: 20px;
  text-align: center;
  display: none;
  z-index: 101;
}
.share-wechat-qr.show {
  display: block;
}
.share-wechat-qr img {
  width: 120px;
  height: 120px;
  margin: 0 auto 8px;
}
.share-wechat-qr p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- 文章签名与名片 ---------- */
.article-signature {
  text-align: center;
  padding: 20px 0;
  font-size: 14px;
  color: var(--text-muted);
  border-top: 1px solid var(--light-200);
  margin-top: 32px;
}
.article-signature .signature-line {
  margin-bottom: 4px;
}
.article-business-card {
  background: linear-gradient(135deg, #f8fdf9, #f0f7ff);
  border: 1px solid var(--light-200);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  color: var(--text-primary);
  margin: 24px 0;
}
.article-business-card .bc-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--light-200);
  margin-bottom: 20px;
}
.article-business-card .bc-header img {
  height: 52px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  flex-shrink: 0;
}
.article-business-card .bc-info h4 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}
.article-business-card .bc-info p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}
.article-business-card .bc-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
}
.article-business-card .bc-item {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}
.article-business-card .bc-label {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}
.article-business-card .bc-item a {
  color: var(--ev-green-dark);
  transition: color var(--transition-fast);
}
.article-business-card .bc-item a:hover {
  color: var(--ev-green);
  text-decoration: underline;
}
.article-business-card .bc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--light-200);
}
.article-business-card .bc-tag {
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(0, 200, 83, 0.08);
  color: var(--ev-green-dark);
}

/* ---------- 评论区 ---------- */
.comment-section,
.article-comments {
  margin-top: 40px;
}
.comment-section h3,
.article-comments h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}
.comment-form {
  margin-bottom: 32px;
}
.comment-form .comment-nick {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 12px;
}
.comment-form .comment-nick:focus {
  outline: none;
  border-color: var(--ev-green);
}
.comment-input-wrap {
  position: relative;
}
.comment-form .comment-text {
  width: 100%;
  padding: 14px 16px 44px;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  min-height: 100px;
  resize: vertical;
}
.comment-form .comment-text:focus {
  outline: none;
  border-color: var(--ev-green);
}
.comment-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}
.emoji-picker-btn {
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.emoji-picker-btn:hover {
  background: var(--light-100);
}
.emoji-panel {
  position: absolute;
  bottom: 100%;
  left: 0;
  margin-bottom: 8px;
  background: #fff;
  border: 1px solid var(--light-200);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  padding: 12px;
  display: none;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  z-index: 50;
  max-width: 360px;
}
.emoji-panel.show {
  display: grid;
}
.emoji-panel span {
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: background var(--transition-fast);
  text-align: center;
}
.emoji-panel span:hover {
  background: var(--light-100);
}
.comment-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.comment-item {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--light-50);
  border-radius: var(--radius-md);
}
.comment-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ev-green), var(--ev-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.comment-body {
  flex: 1;
}
.comment-body .comment-author {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}
.comment-body .comment-time {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.comment-body .comment-text {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

/* ---------- 文章核心要点 ---------- */
.article-keypoints {
  background: linear-gradient(135deg, rgba(0, 200, 83, 0.06), rgba(0, 102, 255, 0.04));
  border: 2px solid var(--ev-green);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 0 0 32px;
  box-shadow: 0 4px 20px rgba(0, 200, 83, 0.1);
}
.article-keypoints h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--ev-green-dark);
}
.article-keypoints ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.article-keypoints li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding-left: 22px;
  position: relative;
  margin-bottom: 4px;
}
.article-keypoints li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--ev-green);
  font-weight: 700;
}
.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  padding: 8px 0;
  flex-wrap: wrap;
}
.article-meta-bar .meta-source {
  padding: 2px 10px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--ev-blue);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}

/* ---------- 页脚Logo修复 ---------- */
.footer-logo {
  height: auto;
  max-height: 64px;
  width: auto;
  max-width: 260px;
  object-fit: contain;
}
/* ---------- 面包屑/名片 Logo ---------- */
.bc-logo {
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  flex-shrink: 0;
}

.bc-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand-text {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 2;
  margin-top: 12px;
}
.footer-brand-text .footer-cn-name {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  display: block;
}
.footer-brand-text .footer-en-name {
  color: var(--text-muted);
  font-size: 12px;
  display: block;
  letter-spacing: 0.3px;
}
.footer-brand-text .footer-slogan {
  color: var(--ev-green-light);
  font-size: 13px;
  display: block;
  margin-top: 4px;
}

/* ---------- 联系信息更新 ---------- */
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--light-200);
  transition: all var(--transition-fast);
}
.contact-info-item:hover {
  border-color: var(--ev-green);
  box-shadow: 0 4px 16px rgba(0, 200, 83, 0.08);
}
.contact-info-item .ci-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 200, 83, 0.1), rgba(0, 102, 255, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-info-item .ci-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.contact-info-item .ci-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.contact-info-item .ci-value a {
  color: inherit;
}
.contact-info-item .ci-value a:hover {
  color: var(--ev-green);
}

/* ---------- 关于我们标语居中 ---------- */
.about-tagline {
  text-align: center;
  margin: 0 auto;
}
.about-tagline .tagline-main {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: var(--ev-green);
  margin-bottom: 12px;
  line-height: 1.3;
}
.about-tagline .tagline-sub {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid,
  .solution-card,
  .platform-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-title-single {
    font-size: clamp(36px, 5.5vw, 50px);
    white-space: nowrap;
    letter-spacing: -2px;
  }

  .metrics-grid,
  .cases-grid,
  .news-grid,
  .download-grid,
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero-visual {
    order: 1;
    min-height: 300px;
  }

  .hero-globe {
    min-height: 300px;
  }

  .hero-globe img {
    max-width: 400px;
    margin-right: 0;
  }
}

@media (max-width: 768px) {
  :root {
    --section-py: 64px;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 40px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

  .nav.active {
    transform: translateX(0);
  }

  .nav-link {
    padding: 16px 0;
    font-size: 18px;
    width: 100%;
    text-align: center;
  }

  .nav-item {
    width: 100%;
    flex-direction: column;
  }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    padding: 0;
    min-width: auto;
    box-shadow: none;
    transition: none;
  }

  .nav-dropdown-link {
    padding: 10px 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
  }

  .header-cta .btn {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-content {
    padding: 40px 0 80px;
  }

  .hero-title-single {
    font-size: clamp(30px, 7vw, 38px);
    white-space: nowrap;
    letter-spacing: -1px;
    line-height: 1.1;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .metrics-grid,
  .cases-grid,
  .news-grid,
  .download-grid,
  .about-stats,
  .platform-features,
  .footer-grid,
  .map-info-grid {
    grid-template-columns: 1fr;
  }

  .solution-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }

  .solution-image {
    min-height: 240px;
  }

  .solution-content {
    padding: 28px;
  }

  .map-container {
    padding: 20px;
    grid-template-columns: 1fr;
  }

  .gov-support-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .gov-support-content {
    padding: 0;
  }

  .gov-support-lead {
    font-size: 15px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 32px;
  }

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

  .metric-number {
    font-size: 30px;
  }

  .news-table-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .news-search-box {
    width: 100%;
  }
  .news-table {
    font-size: 12px;
  }
  .news-table th,
  .news-table td {
    padding: 10px 8px;
  }
  .news-table .news-thumb {
    width: 60px;
    height: 40px;
  }
  .news-table .news-stats {
    flex-direction: column;
    gap: 2px;
  }
  .platform-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }
  .article-business-card {
    padding: 20px;
  }
  .article-business-card .bc-body {
    grid-template-columns: 1fr;
  }
  .article-business-card .bc-header {
    flex-direction: column;
    text-align: center;
  }
  .emoji-panel {
    max-width: 280px;
    grid-template-columns: repeat(8, 1fr);
  }
  .modal-box {
    padding: 24px;
  }
  .platform-display {
    min-height: 360px;
  }
  .platform-slide.active {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: 16px;
    padding: 20px;
  }
  .platform-slide img {
    grid-column: 1;
    grid-row: 1;
    max-height: 240px;
  }
  .platform-slide-text {
    grid-column: 1;
    grid-row: 2;
    align-items: center;
    text-align: center;
    gap: 8px;
    padding: 0;
  }
  .platform-slide-label {
    font-size: 18px;
  }
  .platform-slide-desc {
    font-size: 13px;
  }
  .hero-title-single {
    font-size: clamp(26px, 8vw, 34px);
    white-space: normal;
    line-height: 1.15;
  }
}

/* ---------- 页面集合 Tab 系统 ---------- */
.page-tabs-wrapper {
  background: var(--bg-white);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  position: sticky;
  top: 72px;
  z-index: 50;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.page-tabs {
  display: flex;
  gap: 4px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-tab {
  padding: 16px 28px;
  border: none;
  background: transparent;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
}

.page-tab:hover {
  color: var(--ev-green-dark);
}

.page-tab.active {
  color: var(--ev-green-dark);
  border-bottom-color: var(--ev-green);
}

.page-collection {
  display: none;
}

.page-collection.active {
  display: block;
}

/* 产品实景图网格 */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.photo-grid-item {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  aspect-ratio: 4 / 3;
}

.photo-grid-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.photo-grid-item:hover img {
  transform: scale(1.05);
}

.photo-grid-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}

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