/* ==========================================================================
   qxysd.com 整站样式
   社区市集风 · 企业信息监测服务官网
   ========================================================================== */

/* ==========================================================================
   Base
   ========================================================================== */

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2d3436;
  background-color: #f7f8fa;
}

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

a {
  color: #1a3a5c;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #f5a623;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 700;
  color: #1a3a5c;
  line-height: 1.4;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

figure {
  margin: 0;
}

/* ==========================================================================
   Layout · 全局骨架
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* 统一内容容器 */
.header-inner,
.footer-inner,
.hero-steps,
.service-preview,
.process-preview,
.example-demo,
.faq-preview,
.support-entry,
.breadcrumb,
.page-header,
.page-layout,
.page-title-area,
.service-list,
.comparison-table-wrap,
.selection-tips,
.page-hero-inner,
.term-definitions,
.related-terms,
.page-banner,
.process-steps,
.process-visual,
.faq-hero,
.faq-groups,
.faq-support,
.guide-intro,
.requirements-list,
.contact-paths,
.contact-scene,
.feedback-note,
.related-links,
.error-section {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ==========================================================================
   Header · 页头
   ========================================================================== */

.site-header {
  background-color: #1a3a5c;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(26, 58, 92, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding-top: 8px;
  padding-bottom: 8px;
}

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

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.logo:hover .logo-text {
  color: #f5a623;
}

.main-nav.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list li a:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
}

.nav-list li a.is-current {
  color: #ffffff;
  background-color: rgba(245, 166, 35, 0.22);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  cursor: pointer;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ==========================================================================
   Footer · 页脚
   ========================================================================== */

.site-footer {
  background-color: #1a3a5c;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 60px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 40px;
}

.footer-col h3 {
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 14px;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li {
  margin-bottom: 8px;
}

.footer-links ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li a:hover {
  color: #f5a623;
}

.footer-boundary ul li {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
  padding-left: 14px;
  position: relative;
  margin-bottom: 8px;
}

.footer-boundary ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: #f5a623;
  border-radius: 50%;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  margin: 0;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Components · 通用组件
   ========================================================================== */

/* 面包屑 */
.breadcrumb {
  padding-top: 20px;
  padding-bottom: 4px;
  font-size: 14px;
  color: #636e72;
}

.breadcrumb a {
  color: #1a3a5c;
}

.breadcrumb a:hover {
  color: #f5a623;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: #b2bec3;
}

.breadcrumb-current {
  color: #636e72;
}

/* 页面标题区 */
.page-header {
  padding-top: 12px;
  padding-bottom: 20px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a3a5c;
  line-height: 1.3;
}

.page-intro {
  font-size: 16px;
  color: #636e72;
  line-height: 1.7;
  max-width: 760px;
  margin-top: 8px;
}

/* CTA 按钮 */
.cta-button,
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.cta-button,
.btn-primary {
  background-color: #f5a623;
  color: #1a3a5c;
}

.cta-button:hover,
.btn-primary:hover {
  background-color: #e89f1c;
  color: #1a3a5c;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: #1a3a5c;
  border-color: #1a3a5c;
}

.btn-secondary:hover {
  background-color: #1a3a5c;
  color: #ffffff;
}

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #1a3a5c;
  border-bottom: 2px solid #f5a623;
  padding-bottom: 2px;
}

.text-link:hover {
  color: #f5a623;
}

/* 区块标题 */
.section-heading {
  margin-bottom: 32px;
}

.section-heading h2,
.section-title {
  font-size: 24px;
  color: #1a3a5c;
  margin-bottom: 8px;
}

.section-heading p,
.section-desc {
  font-size: 15px;
  color: #636e72;
  line-height: 1.7;
  max-width: 720px;
}

/* 相关链接条 */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 16px;
  padding-bottom: 16px;
  margin-top: 40px;
  border-top: 1px solid #e2e8f0;
  font-size: 14px;
}

.related-links-label {
  color: #636e72;
  font-weight: 600;
}

.related-links-item {
  color: #1a3a5c;
  padding: 4px 12px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  font-size: 13px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  border-color: #f5a623;
  color: #f5a623;
}

/* FAQ 折叠项 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.faq-item:hover {
  box-shadow: 0 4px 12px rgba(26, 58, 92, 0.08);
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #1a3a5c;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: #f5a623;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item[open] summary {
  border-bottom: 1px solid #e2e8f0;
}

.faq-item p {
  padding: 12px 20px 16px;
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   Components · 首页
   ========================================================================== */

/* 首屏步骤区 */
.hero-steps {
  padding-top: 48px;
  padding-bottom: 48px;
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 40px;
  align-items: center;
}

.hero-media {
  border-radius: 8px;
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.hero-content h1 {
  font-size: 30px;
  line-height: 1.35;
  margin-bottom: 12px;
}

.hero-content > p {
  font-size: 15px;
  color: #636e72;
  line-height: 1.7;
  margin-bottom: 24px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.step-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 20px 16px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.step-card:hover {
  box-shadow: 0 6px 16px rgba(26, 58, 92, 0.1);
  transform: translateY(-2px);
}

.hero-steps .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #1a3a5c;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 10px;
}

.hero-steps .step-card h2 {
  font-size: 16px;
  margin-bottom: 6px;
}

.hero-steps .step-card p {
  font-size: 13px;
  color: #636e72;
  line-height: 1.6;
  margin: 0;
}

/* 服务范围预览 */
.service-preview {
  padding-top: 56px;
  padding-bottom: 56px;
}

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

.service-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  box-shadow: 0 8px 24px rgba(26, 58, 92, 0.1);
  transform: translateY(-4px);
}

.service-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.service-card h3 {
  font-size: 18px;
  padding: 16px 20px 4px;
}

.service-card p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  padding: 0 20px;
  margin-bottom: 12px;
}

.service-tag {
  display: inline-block;
  margin: 0 20px 16px;
  padding: 4px 12px;
  background-color: #eef2f7;
  color: #1a3a5c;
  font-size: 13px;
  border-radius: 20px;
}

.service-card a {
  display: block;
  padding: 0 20px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1a3a5c;
}

.service-card a:hover {
  color: #f5a623;
}

/* 合作流程速览 */
.process-preview {
  padding-top: 56px;
  padding-bottom: 56px;
  background-color: #ffffff;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.timeline-item {
  position: relative;
  padding: 24px 20px;
  background-color: #f7f8fa;
  border-radius: 8px;
  border-left: 4px solid #f5a623;
}

.timeline-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: #f5a623;
  color: #1a3a5c;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.timeline-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.timeline-item p {
  font-size: 13px;
  color: #636e72;
  line-height: 1.6;
  margin: 0;
}

/* 示例演示 */
.example-demo {
  padding-top: 56px;
  padding-bottom: 56px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: center;
}

.demo-media {
  border-radius: 8px;
  overflow: hidden;
}

.demo-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.demo-content h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.demo-content p {
  font-size: 15px;
  color: #636e72;
  line-height: 1.7;
}

.demo-content a {
  display: inline-block;
  margin-top: 8px;
}

/* 首页 FAQ 预览 */
.faq-preview {
  padding-top: 56px;
  padding-bottom: 56px;
  background-color: #ffffff;
  border-top: 1px solid #e2e8f0;
}

.faq-preview > a {
  display: inline-block;
  margin-top: 20px;
}

/* 支持入口 */
.support-entry {
  padding-top: 48px;
  padding-bottom: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.support-text h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.support-text p {
  font-size: 15px;
  color: #636e72;
  margin: 0;
}

/* ==========================================================================
   Components · 内页通用
   ========================================================================== */

.inner-main {
  background-color: #f7f8fa;
}

/* 双栏布局：主内容 + 侧栏 */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  padding-top: 8px;
  padding-bottom: 48px;
  align-items: start;
}

.main-content-area {
  min-width: 0;
}

.sidebar-area {
  min-width: 0;
}

.sidebar-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
}

.sidebar-card h2 {
  font-size: 18px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f5a623;
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.sidebar-list li {
  font-size: 14px;
  color: #636e72;
  line-height: 1.6;
  padding-left: 16px;
  position: relative;
}

.sidebar-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: #f5a623;
  border-radius: 50%;
}

.sidebar-link {
  display: block;
  text-align: center;
  padding: 10px 16px;
  background-color: #1a3a5c;
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.sidebar-link:hover {
  background-color: #f5a623;
  color: #1a3a5c;
}

/* ==========================================================================
   Pages · 关于我们
   ========================================================================== */

.about-section {
  margin-bottom: 40px;
}

.about-section h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.about-section p {
  font-size: 15px;
  color: #2d3436;
  line-height: 1.75;
}

.about-figure {
  margin: 24px 0;
  border-radius: 8px;
  overflow: hidden;
}

.about-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.about-figure figcaption {
  font-size: 13px;
  color: #636e72;
  padding: 8px 12px;
  background-color: #eef2f7;
}

/* ==========================================================================
   Pages · 服务内容
   ========================================================================== */

.page-title-area {
  padding-bottom: 24px;
}

.service-list {
  padding-bottom: 8px;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  align-items: center;
  transition: box-shadow 0.2s ease;
}

.service-item:hover {
  box-shadow: 0 6px 16px rgba(26, 58, 92, 0.08);
}

.service-media {
  min-width: 0;
}

.service-figure {
  border-radius: 8px;
  overflow: hidden;
}

.service-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.service-figure figcaption {
  font-size: 13px;
  color: #636e72;
  padding: 8px 12px;
  background-color: #eef2f7;
}

.service-content {
  min-width: 0;
}

.service-content h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.service-desc {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin-bottom: 12px;
}

.service-conditions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.service-conditions li {
  font-size: 14px;
  color: #2d3436;
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}

.service-conditions li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #2ecc71;
  font-weight: 700;
}

.services-page .service-tag,
.service-tag-warning {
  background-color: #fef3e2;
  color: #b7791f;
}

/* 对比表 */
.comparison-table-wrap {
  padding-top: 40px;
  padding-bottom: 16px;
}

.table-scroll {
  overflow-x: auto;
  margin-top: 20px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 640px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
  line-height: 1.6;
}

.comparison-table thead th {
  background-color: #1a3a5c;
  color: #ffffff;
  font-weight: 600;
  white-space: nowrap;
}

.comparison-table tbody th {
  background-color: #eef2f7;
  color: #1a3a5c;
  font-weight: 600;
  white-space: nowrap;
}

.comparison-table tbody tr:last-child th,
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* 选择提示 */
.selection-tips {
  padding-top: 32px;
  padding-bottom: 16px;
}

.tips-content {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
  margin-top: 16px;
}

.tips-content p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin-bottom: 8px;
}

.tips-content p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Pages · 监测方法
   ========================================================================== */

.page-hero-method {
  padding-top: 8px;
  padding-bottom: 24px;
}

.page-hero-inner p {
  font-size: 16px;
  color: #636e72;
  line-height: 1.7;
  max-width: 760px;
}

.term-definitions {
  padding-bottom: 16px;
}

.term-item {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
}

.term-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.term-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #1a3a5c;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 6px;
  flex-shrink: 0;
}

.term-head h2 {
  font-size: 22px;
  margin: 0;
}

.term-definition {
  font-size: 16px;
  font-weight: 600;
  color: #1a3a5c;
  background-color: #eef2f7;
  border-left: 4px solid #f5a623;
  padding: 12px 16px;
  border-radius: 0 6px 6px 0;
  margin-bottom: 16px;
}

.term-explanation {
  font-size: 15px;
  color: #2d3436;
  line-height: 1.75;
  margin-bottom: 20px;
}

.term-figure {
  margin: 20px 0;
  border-radius: 8px;
  overflow: hidden;
}

.term-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.term-figure figcaption {
  font-size: 13px;
  color: #636e72;
  padding: 8px 12px;
  background-color: #eef2f7;
}

.term-example,
.term-counterexample {
  background-color: #f7f8fa;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.term-example {
  border-left: 4px solid #2ecc71;
}

.term-counterexample {
  border-left: 4px solid #e74c3c;
}

.term-example h3,
.term-counterexample h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.term-example p,
.term-counterexample p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin: 0;
}

/* 关联术语 */
.related-terms {
  padding-top: 16px;
  padding-bottom: 16px;
}

.related-terms h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.related-list li a {
  display: block;
  padding: 12px 16px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  font-size: 14px;
  color: #1a3a5c;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-list li a:hover {
  border-color: #f5a623;
  color: #f5a623;
}

/* ==========================================================================
   Pages · 合作流程
   ========================================================================== */

.page-banner {
  padding-top: 8px;
  padding-bottom: 24px;
}

.banner-inner {
  background-color: #1a3a5c;
  border-radius: 8px;
  padding: 24px 32px;
}

.banner-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin: 0;
}

.process-steps {
  padding-bottom: 16px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.step-item {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 24px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
  align-items: start;
}

.step-info {
  border-right: 2px solid #eef2f7;
  padding-right: 24px;
}

.process-steps .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #f5a623;
  color: #1a3a5c;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.step-info h3 {
  font-size: 20px;
  margin-bottom: 6px;
}

.step-duration {
  font-size: 13px;
  color: #636e72;
  margin: 0;
}

.step-detail {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-input,
.step-output,
.step-owner {
  background-color: #f7f8fa;
  border-radius: 6px;
  padding: 14px 16px;
}

.step-input h4,
.step-output h4,
.step-owner h4 {
  font-size: 14px;
  color: #1a3a5c;
  margin-bottom: 4px;
}

.step-input p,
.step-output p,
.step-owner p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.6;
  margin: 0;
}

/* 流程视觉图 */
.process-visual {
  padding-top: 24px;
  padding-bottom: 16px;
}

.visual-wrap {
  border-radius: 8px;
  overflow: hidden;
}

.process-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.process-figure figcaption {
  font-size: 14px;
  color: #636e72;
  padding: 12px 16px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-top: none;
}

/* 流程页支持入口 */
.process-steps + .support-entry {
  background-color: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  margin-top: 24px;
  margin-bottom: 24px;
}

.support-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  width: 100%;
  padding: 32px 24px;
}

.support-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Pages · 常见问题
   ========================================================================== */

.faq-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
  padding-top: 8px;
  padding-bottom: 40px;
}

.faq-hero-text p {
  font-size: 16px;
  color: #636e72;
  line-height: 1.7;
  margin: 0;
}

.faq-hero-image {
  border-radius: 8px;
  overflow: hidden;
}

.faq-hero-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.faq-groups {
  padding-bottom: 16px;
}

.faq-group {
  margin-bottom: 40px;
}

.faq-group > h2 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #f5a623;
}

.faq-answer p {
  padding: 0 20px 8px;
}

.faq-answer p:first-child {
  padding-top: 12px;
}

.faq-answer .faq-more {
  padding-bottom: 16px;
  font-size: 14px;
}

.faq-answer .faq-more a {
  color: #1a3a5c;
  font-weight: 600;
}

.faq-answer .faq-more a:hover {
  color: #f5a623;
}

/* FAQ 支持卡片 */
.faq-support {
  padding-top: 16px;
  padding-bottom: 16px;
}

.support-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 32px;
  text-align: center;
}

.support-card h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.support-card p {
  font-size: 15px;
  color: #636e72;
  margin-bottom: 20px;
}

.support-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Pages · 合作指南
   ========================================================================== */

.guide-intro {
  padding-top: 8px;
  padding-bottom: 24px;
}

.guide-intro p {
  font-size: 16px;
  color: #2d3436;
  line-height: 1.75;
  max-width: 780px;
}

.guide-intro a {
  font-weight: 600;
  color: #1a3a5c;
  border-bottom: 2px solid #f5a623;
}

.guide-intro a:hover {
  color: #f5a623;
}

.requirements-list {
  padding-bottom: 32px;
}

.requirements-list > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.requirements-list > p {
  font-size: 15px;
  color: #636e72;
  margin-bottom: 20px;
}

.requirement-item {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #f5a623;
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 16px;
}

.requirement-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.requirement-item p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin: 0;
}

.contact-paths {
  padding-bottom: 32px;
}

.contact-paths > h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.contact-paths > p {
  font-size: 15px;
  color: #636e72;
  margin-bottom: 20px;
}

.path-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.path-card {
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.path-card:hover {
  box-shadow: 0 6px 16px rgba(26, 58, 92, 0.1);
  transform: translateY(-2px);
}

.path-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.path-card p {
  font-size: 14px;
  color: #636e72;
  line-height: 1.7;
  margin-bottom: 16px;
}

.path-card a {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #1a3a5c;
  border-bottom: 2px solid #f5a623;
  padding-bottom: 2px;
}

.path-card a:hover {
  color: #f5a623;
}

.contact-scene {
  padding-bottom: 32px;
}

.contact-scene h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.contact-scene > p {
  font-size: 15px;
  color: #636e72;
  margin-bottom: 20px;
}

.contact-figure {
  border-radius: 8px;
  overflow: hidden;
}

.contact-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.contact-figure figcaption {
  font-size: 14px;
  color: #636e72;
  padding: 12px 16px;
  background-color: #ffffff;
  border: 1px solid #e2e8f0;
  border-top: none;
}

.feedback-note {
  padding-bottom: 16px;
}

.feedback-note h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.feedback-note p {
  font-size: 15px;
  color: #636e72;
  line-height: 1.7;
  max-width: 780px;
}

/* ==========================================================================
   Pages · 404
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}

.error-section {
  text-align: center;
  padding-top: 48px;
  padding-bottom: 48px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #1a3a5c;
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-section h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: #636e72;
  max-width: 480px;
  margin: 0 auto 24px;
}

.error-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.error-tip {
  font-size: 14px;
  color: #b2bec3;
}

.error-tip a {
  color: #1a3a5c;
  font-weight: 600;
}

.error-tip a:hover {
  color: #f5a623;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* 平板及以下 */
@media (max-width: 992px) {
  .hero-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-media img {
    height: 240px;
  }

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

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

  .example-demo {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sidebar-area {
    order: 2;
  }

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

  .step-item {
    grid-template-columns: 1fr;
  }

  .step-info {
    border-right: none;
    border-bottom: 2px solid #eef2f7;
    padding-right: 0;
    padding-bottom: 16px;
  }

  .faq-hero {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* 手机端 */
@media (max-width: 768px) {
  .header-inner {
    min-height: 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.site-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: #1a3a5c;
    padding: 12px 16px 20px;
    gap: 2px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    z-index: 99;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li a {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 6px;
  }

  .hero-steps {
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .hero-content h1 {
    font-size: 26px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .service-preview {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .service-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-preview {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .example-demo {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .demo-media img {
    height: 220px;
  }

  .faq-preview {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .support-entry {
    padding-top: 32px;
    padding-bottom: 32px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 13px;
  }

  .page-header {
    padding-top: 8px;
    padding-bottom: 16px;
  }

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

  .page-intro {
    font-size: 15px;
  }

  /* 服务内容页 */
  .service-item {
    padding: 16px;
  }

  .service-figure img {
    height: 180px;
  }

  .comparison-table-wrap {
    padding-top: 32px;
  }

  .table-scroll {
    margin-top: 12px;
  }

  /* 监测方法页 */
  .term-item {
    padding: 20px;
  }

  .term-figure img {
    height: 200px;
  }

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

  /* 合作流程页 */
  .banner-inner {
    padding: 20px;
  }

  .step-item {
    padding: 20px;
  }

  .process-figure img {
    height: 220px;
  }

  .support-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
  }

  /* FAQ 页 */
  .faq-hero {
    padding-top: 0;
    padding-bottom: 32px;
  }

  .faq-hero-image img {
    height: 180px;
  }

  .support-card {
    padding: 24px 20px;
  }

  /* 合作指南页 */
  .path-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact-figure img {
    height: 220px;
  }

  /* 404 */
  .error-code {
    font-size: 56px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
    padding-bottom: 24px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .logo-text {
    font-size: 18px;
  }

  .hero-media img {
    height: 200px;
  }

  .service-card img {
    height: 160px;
  }

  .demo-media img {
    height: 200px;
  }

  .about-figure img {
    height: 200px;
  }

  .term-figure img {
    height: 180px;
  }

  .cta-button,
  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
}

/* 打印样式 */
@media print {
  .site-header,
  .site-footer,
  .related-links,
  .support-entry,
  .faq-support {
    display: none;
  }

  body {
    background-color: #ffffff;
  }

  .inner-main {
    background-color: #ffffff;
  }

  .page-layout {
    display: block;
  }

  .sidebar-area {
    margin-top: 24px;
  }
}