/* ============================================================
   之江响应地图 - 全局样式表
   response.zjswitch.com
   移动端优先 · 响应式设计
   ============================================================ */

/* --- CSS 变量 --- */
:root {
  --color-primary: #1a56db;
  --color-primary-dark: #1e40af;
  --color-primary-light: #dbeafe;
  --color-accent-green: #059669;
  --color-accent-amber: #d97706;
  --color-accent-red: #dc2626;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --max-width: 1280px;
  --header-height: 64px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

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

ul, ol {
  list-style: none;
}

/* --- 排版 --- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  color: var(--color-text);
  font-weight: 600;
}

h1 { font-size: clamp(1.5rem, 3vw, 2rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.25rem); }
h4 { font-size: 1rem; }

.section-title {
  position: relative;
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.text-muted { color: var(--color-text-secondary); font-size: 0.875rem; }
.text-small { font-size: 0.8125rem; }
.text-center { text-align: center; }

.sim-badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.6875rem;
  padding: 2px 8px;
  border-radius: 10px;
  vertical-align: middle;
  margin-left: 6px;
  font-weight: 500;
}

.placeholder-tag {
  display: inline-block;
  background: #f1f5f9;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px dashed var(--color-border);
}

/* --- 布局 --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

main {
  flex: 1;
  padding-top: calc(var(--header-height) + 1rem);
  padding-bottom: 2rem;
}

.page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 2rem 1rem;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  color: #fff;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  margin-bottom: 0.5rem;
}

.page-header p {
  color: rgba(255,255,255,0.85);
  font-size: 0.9375rem;
  max-width: 720px;
}

/* --- 导航栏 --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--color-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.875rem;
}

.nav-links {
  display: flex;
  gap: 0.125rem;
  align-items: center;
}

.nav-links a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
  text-decoration: none;
}

/* 移动端汉堡菜单 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* --- 面包屑 --- */
.breadcrumb {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: 0.75rem 0;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .sep {
  color: var(--color-text-muted);
}

/* --- 页脚 --- */
.site-footer {
  background: #1e293b;
  color: #94a3b8;
  padding: 2.5rem 1rem 1.5rem;
  font-size: 0.875rem;
  margin-top: auto;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-footer h4 {
  color: #e2e8f0;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.site-footer a {
  color: #94a3b8;
  display: block;
  padding: 0.25rem 0;
}

.site-footer a:hover {
  color: #e2e8f0;
  text-decoration: none;
}

.site-footer .footer-bottom {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid #334155;
  text-align: center;
  font-size: 0.8125rem;
}

/* --- 卡片 --- */
.card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  padding: 1.25rem;
  transition: box-shadow 0.2s;
}

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

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-header h3 {
  font-size: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  line-height: 1.4;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

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

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

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

.btn-success {
  background: var(--color-accent-green);
  color: #fff;
}

.btn-success:hover {
  background: #047857;
  color: #fff;
}

.btn-lg {
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

/* --- 表单 --- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: #fff;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* --- 表格 --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.data-table thead {
  background: var(--color-primary);
  color: #fff;
}

.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 500;
  white-space: nowrap;
}

.data-table td {
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
}

.data-table tbody tr:hover {
  background: var(--color-primary-light);
}

.data-table .rate-high { color: var(--color-accent-green); font-weight: 600; }
.data-table .rate-mid { color: var(--color-accent-amber); font-weight: 600; }

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* --- 地图容器 --- */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  background: #e2e8f0;
}

.map-container-lg {
  height: 500px;
}

.map-container-city {
  height: 350px;
}

/* Leaflet 修复 */
.leaflet-container {
  width: 100% !important;
  height: 100% !important;
}

/* --- 统计面板 --- */
.stats-dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.stat-change {
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.stat-change.up { color: var(--color-accent-green); }
.stat-change.down { color: var(--color-accent-red); }

/* --- 环形图容器 --- */
.chart-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.chart-container-sm {
  max-width: 250px;
}

.chart-container-lg {
  max-width: 100%;
  height: 350px;
}

/* --- 图表标签切换 --- */
.chart-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--color-border-light);
}

.chart-tab {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}

.chart-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

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

/* --- FAQ 折叠 --- */
.faq-list {
  max-width: 800px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  text-align: left;
  background: #fff;
  border: none;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-question:hover {
  background: var(--color-primary-light);
}

.faq-question .icon {
  flex-shrink: 0;
  transition: transform 0.3s;
  color: var(--color-text-muted);
}

.faq-item.open .faq-question .icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- SOP 流程 --- */
.sop-timeline {
  position: relative;
  padding: 1rem 0;
}

.sop-timeline::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary-light);
  border-radius: 2px;
}

.sop-step {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  position: relative;
  align-items: flex-start;
}

.sop-step-num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 1;
  transition: transform 0.3s, box-shadow 0.3s;
}

.sop-step.active .sop-step-num {
  transform: scale(1.1);
  box-shadow: 0 0 0 8px var(--color-primary-light);
}

.sop-step.completed .sop-step-num {
  background: var(--color-accent-green);
}

.sop-step-content {
  background: var(--color-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  flex: 1;
  box-shadow: var(--shadow-sm);
}

.sop-step-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.0625rem;
}

.sop-step-content .time-badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-top: 0.5rem;
}

.sop-controls {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin: 1.5rem 0;
}

/* SOP 占位图 */
.sop-placeholder-img {
  width: 100%;
  height: 120px;
  background: linear-gradient(135deg, #e2e8f0, #f1f5f9);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  margin: 0.75rem 0;
}

/* --- 城市选择器 --- */
.city-selector {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.city-btn {
  display: block;
  padding: 0.75rem 1rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text);
  transition: all 0.2s;
  cursor: pointer;
}

.city-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.city-btn .province {
  display: block;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* --- 对比条 --- */
.compare-bar {
  margin: 1rem 0;
}

.compare-bar .bar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

.compare-bar .bar-label {
  width: 80px;
  flex-shrink: 0;
  font-weight: 500;
}

.compare-bar .bar-track {
  flex: 1;
  height: 24px;
  background: #f1f5f9;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.compare-bar .bar-fill {
  height: 100%;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: 0.75rem;
  color: #fff;
  font-weight: 600;
  min-width: 40px;
}

.bar-fill.zj { background: var(--color-primary); }
.bar-fill.industry { background: var(--color-text-muted); }

/* --- 案例卡片 --- */
.case-card {
  background: var(--color-card);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.case-card .case-scene {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.375rem;
}

.case-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- 二维码/城市信息模块 --- */
.city-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.info-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.info-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.info-value-sm {
  font-size: 1rem;
  font-weight: 600;
}

/* --- 模态框 --- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.modal h3 {
  margin-bottom: 0.75rem;
}

.modal .check-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #dcfce7;
  color: var(--color-accent-green);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* --- 资质图标行 --- */
.credential-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  margin: 1.25rem 0;
}

.credential-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.credential-badge .badge-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* --- 事实数字模块 --- */
.company-figure {
  margin: 1.5rem 0;
  text-align: center;
}

.company-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  object-fit: cover;
  max-height: 480px;
}

.company-figure figcaption {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  padding: 0 1rem;
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.fact-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--color-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.fact-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
}

.fact-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

.fact-source {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: 0.375rem;
}

/* --- 免责声明条 --- */
.disclaimer-bar {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  color: #92400e;
  margin: 1.5rem 0;
}

.disclaimer-bar strong {
  color: #78350f;
}

/* --- 预告区域 --- */
.announcement {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid #bfdbfe;
}

/* --- 省份标签分组 --- */
.province-group {
  margin-bottom: 1.5rem;
}

.province-group h3 {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

/* --- 响应式断点 --- */

/* 平板 (≤1024px) */
@media (max-width: 1024px) {
  .stats-dashboard {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
  }

  .map-container-lg {
    height: 380px;
  }
}

/* 小平板 (≤768px) */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
  }

  .stats-dashboard {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }

  .stat-card {
    padding: 0.875rem;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .map-container {
    height: 300px;
  }

  .map-container-lg {
    height: 300px;
  }

  .map-container-city {
    height: 280px;
  }

  .sop-step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .sop-timeline::before {
    display: none;
  }

  .card-grid,
  .card-grid-3,
  .card-grid-4 {
    grid-template-columns: 1fr;
  }

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

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

  .compare-bar .bar-label {
    width: 60px;
    font-size: 0.75rem;
  }
}

/* 手机 (≤480px) */
@media (max-width: 480px) {
  h1 { font-size: 1.25rem; }
  h2 { font-size: 1.125rem; }

  .container {
    padding: 0 0.75rem;
  }

  .stats-dashboard {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.375rem;
  }

  .stat-card {
    padding: 0.625rem;
  }

  .stat-value {
    font-size: 1.25rem;
  }

  .stat-label {
    font-size: 0.6875rem;
  }

  .map-container,
  .map-container-lg,
  .map-container-city {
    height: 250px;
  }

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

  .fact-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .page-header {
    padding: 1.25rem 0.75rem;
  }

  .card {
    padding: 1rem;
  }

  .btn-lg {
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
  }

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

  .modal {
    padding: 1.5rem;
  }

  .credential-row {
    gap: 1rem;
  }
}

/* --- 动画 --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

.blink {
  animation: blink 1.5s ease-in-out infinite;
}

/* 地图点位脉冲效果 */
.map-pulse-dot {
  position: relative;
}

.map-pulse-dot::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: inherit;
  animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(3); opacity: 0; }
}

/* --- 打印样式 --- */
@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .btn,
  .map-container {
    display: none !important;
  }
  body { font-size: 12pt; }
  .card { box-shadow: none; border: 1px solid #ccc; }
  main { padding-top: 0; }
}

/* --- 高对比度 / 辅助功能 --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: high) {
  :root {
    --color-primary: #003dcc;
    --color-text: #000;
    --color-border: #666;
  }
}