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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1f2933;
  background-color: #f5f6f8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #1e3a5f;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #e67e22;
}

p {
  margin: 0 0 1em;
}

h1,
h2,
h3 {
  color: #1e3a5f;
  line-height: 1.3;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 17px;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #e4e7eb;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  flex-shrink: 0;
}

.brand a {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #1e3a5f;
  letter-spacing: 0.5px;
}

.brand-tag {
  font-size: 12px;
  color: #7b8794;
  letter-spacing: 1px;
}

.site-nav .nav-list {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
}

.site-nav .nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: #1f2933;
  border-bottom: 2px solid transparent;
  line-height: 1.4;
}

.site-nav .nav-list a:hover {
  color: #1e3a5f;
}

.site-nav .nav-list a.is-current {
  color: #1e3a5f;
  font-weight: 600;
  border-bottom-color: #e67e22;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid #e4e7eb;
  border-radius: 6px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #1e3a5f;
  margin: 0 auto;
}

.site-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.site-footer {
  background-color: #1e3a5f;
  color: #cbd2d9;
  border-top: 4px solid #e67e22;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 48px 20px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #9fb0c0;
  margin-bottom: 0;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col a {
  color: #9fb0c0;
  font-size: 14px;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  padding: 16px 20px;
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: #7b8794;
}

/* 内页布局外壳 */
.layout-shell,
.page-layout {
  max-width: 1160px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.sidebar-left {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.sidebar-left .sidebar-nav {
  position: sticky;
  top: 84px;
}

.sidebar-left .inner-main {
  min-width: 0;
}

.inner-main {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 32px 36px 44px;
  border: 1px solid #e4e7eb;
  min-width: 0;
}

/* 面包屑 */
.breadcrumb {
  font-size: 13px;
  color: #7b8794;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb a {
  color: #1e3a5f;
}

.breadcrumb a:hover {
  color: #e67e22;
}

.breadcrumb-sep {
  color: #9aa5b1;
}

.breadcrumb-current {
  color: #7b8794;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e4e7eb;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: #1e3a5f;
  margin-bottom: 10px;
}

.page-description {
  font-size: 15px;
  color: #52606d;
  margin: 0;
  max-width: 720px;
}

/* ==========================================================================
   Components
   ========================================================================== */

/* 按钮 */
.btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background-color: #1e3a5f;
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #2c4a75;
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  color: #1e3a5f;
  border-color: #1e3a5f;
}

.btn-secondary:hover {
  background-color: #1e3a5f;
  color: #ffffff;
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  color: #1e3a5f;
  margin-bottom: 12px;
  font-weight: 700;
}

.section-intro {
  font-size: 15px;
  color: #52606d;
  margin-bottom: 24px;
  max-width: 720px;
}

.section-desc {
  font-size: 15px;
  color: #52606d;
  margin-bottom: 20px;
}

/* 状态灯 */
.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-monitoring {
  background-color: #2e7d32;
}

.status-verifying {
  background-color: #d4a017;
}

.status-analyzing {
  background-color: #c62828;
}

.status-deliverable {
  background-color: #1e3a5f;
}

/* 表格通用 */
.table-scroll,
.table-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
}

.data-table,
.services-info-table,
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td,
.services-info-table th,
.services-info-table td,
.comparison-table th,
.comparison-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #e4e7eb;
  vertical-align: top;
}

.data-table thead th,
.services-info-table thead th,
.comparison-table thead th {
  background-color: #f0f2f5;
  font-weight: 600;
  color: #1e3a5f;
  font-size: 14px;
  white-space: nowrap;
}

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

.table-note {
  font-size: 13px;
  color: #7b8794;
  margin-top: 8px;
}

/* 侧栏导航 */
.sidebar-nav {
  background-color: #ffffff;
  border: 1px solid #e4e7eb;
  border-radius: 8px;
  padding: 20px 0;
}

.sidebar-nav-group,
.sidebar-group {
  margin-bottom: 8px;
}

.sidebar-nav-title,
.sidebar-group-title {
  font-size: 13px;
  font-weight: 600;
  color: #7b8794;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 20px;
  margin: 0;
}

.sidebar-nav-list,
.sidebar-list {
  list-style: none;
}

.sidebar-nav-list a,
.sidebar-list a {
  display: block;
  padding: 8px 20px;
  font-size: 14px;
  color: #1f2933;
  border-left: 3px solid transparent;
}

.sidebar-nav-list a:hover,
.sidebar-list a:hover {
  color: #1e3a5f;
  background-color: #f5f6f8;
}

.sidebar-nav-list a.is-current,
.sidebar-list a.is-current,
.sidebar-item a.is-current {
  color: #1e3a5f;
  font-weight: 600;
  border-left-color: #e67e22;
  background-color: #f5f6f8;
}

/* FAQ */
.faq-list {
  margin-top: 16px;
}

.faq-item {
  border: 1px solid #e4e7eb;
  border-radius: 6px;
  margin-bottom: 12px;
  background-color: #ffffff;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #1e3a5f;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: #7b8794;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: #52606d;
  margin: 0;
}

/* 图片容器 */
.content-media {
  margin: 24px 0;
}

.content-media img,
.hero-figure img,
.service-figure img,
.methods-figure img,
.refs-intro-figure img,
.content-media-inline img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid #e4e7eb;
  background-color: #f0f2f5;
}

.content-media figcaption,
.hero-figure figcaption,
.service-figure figcaption,
.methods-figure figcaption,
.refs-intro-figure figcaption {
  font-size: 13px;
  color: #7b8794;
  margin-top: 8px;
  text-align: center;
}

/* 相邻链接 */
.adjacent-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #e4e7eb;
}

.adjacent-links p {
  font-size: 14px;
  color: #52606d;
  margin-bottom: 12px;
}

.adjacent-links a {
  color: #1e3a5f;
  font-weight: 600;
}

.adjacent-links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.adjacent-links-grid p {
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 16px 20px;
  margin: 0;
  font-size: 14px;
}

.adjacent-links-grid a {
  display: block;
  margin-top: 4px;
}

/* 相关链接 */
.related-links {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid #e4e7eb;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1e3a5f;
}

.related-links-item {
  font-size: 14px;
  color: #1e3a5f;
  background-color: #f0f2f5;
  padding: 6px 14px;
  border-radius: 20px;
}

.related-links-item:hover {
  background-color: #e4e7eb;
  color: #1e3a5f;
}

/* ==========================================================================
   Pages - 首页
   ========================================================================== */

.home-main {
  padding-top: 0;
}

/* 首屏 */
.hero-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0 40px;
  background-color: #ffffff;
  border-bottom: 1px solid #e4e7eb;
  margin-bottom: 40px;
}

.hero-copy h1 {
  font-size: 32px;
  color: #1e3a5f;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 18px;
  font-weight: 600;
  color: #1e3a5f;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 15px;
  color: #52606d;
  margin-bottom: 24px;
}

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

.hero-media {
  position: relative;
}

.hero-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 8px;
}

.content-media-primary {
  margin: 0;
}

.content-media-primary img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
}

.content-media-primary figcaption {
  font-size: 13px;
  color: #7b8794;
  margin-top: 8px;
}

/* 状态总览条 */
.status-bar {
  background-color: #ffffff;
  border: 1px solid #e4e7eb;
  border-radius: 8px;
  padding: 28px 32px;
  margin-bottom: 40px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.status-item {
  padding: 20px;
  background-color: #f5f6f8;
  border-radius: 6px;
  border-left: 3px solid #e4e7eb;
}

.status-item .status-dot {
  margin-bottom: 10px;
}

.status-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.status-item p {
  font-size: 14px;
  color: #52606d;
  margin: 0;
}

/* 核心业务信息表 */
.services-table-section,
.comparison-section,
.process-section,
.references-index-section,
.faq-section {
  background-color: #ffffff;
  border: 1px solid #e4e7eb;
  border-radius: 8px;
  padding: 28px 32px;
  margin-bottom: 40px;
}

.services-info-table th:first-child {
  background-color: #f0f2f5;
  font-weight: 600;
  color: #1e3a5f;
  width: 140px;
}

/* 合作方式对比表 */
.comparison-table th:first-child {
  background-color: #f0f2f5;
  font-weight: 600;
  color: #1e3a5f;
  width: 140px;
}

/* 工作流程链路 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.process-step {
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 20px;
  position: relative;
}

.process-step .status-dot {
  position: absolute;
  top: 16px;
  left: 20px;
}

.process-step h3 {
  font-size: 16px;
  margin: 20px 0 8px;
  padding-top: 8px;
  border-top: 1px solid #e4e7eb;
}

.process-step p {
  font-size: 14px;
  color: #52606d;
  margin-bottom: 12px;
}

.process-step a {
  font-size: 14px;
  font-weight: 600;
}

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

.section-more a {
  font-size: 14px;
  font-weight: 600;
}

/* 内容参考索引 */
.refs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.refs-card {
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 24px 20px;
  border-top: 3px solid #1e3a5f;
}

.refs-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.refs-card p {
  font-size: 14px;
  color: #52606d;
  margin-bottom: 12px;
}

.refs-card a {
  font-size: 14px;
  font-weight: 600;
}

/* CTA 横幅 */
.cta-banner {
  background-color: #1e3a5f;
  border-radius: 8px;
  padding: 40px;
  margin-bottom: 40px;
}

.cta-content {
  max-width: 640px;
}

.cta-content h2 {
  color: #ffffff;
  margin-bottom: 12px;
}

.cta-content p {
  color: #cbd2d9;
  font-size: 15px;
  margin-bottom: 20px;
}

.cta-content .btn-primary {
  background-color: #e67e22;
  border-color: #e67e22;
}

.cta-content .btn-primary:hover {
  background-color: #d06e12;
}

/* ==========================================================================
   Pages - 核心业务
   ========================================================================== */

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

.overview-table th:first-child {
  background-color: #f0f2f5;
  font-weight: 600;
  color: #1e3a5f;
}

.service-detail {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid #e4e7eb;
}

.service-detail:last-of-type {
  border-bottom: none;
}

.service-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.service-text p {
  font-size: 15px;
  color: #52606d;
}

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

.service-meta {
  margin-top: 20px;
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 16px 20px;
}

.service-meta p {
  font-size: 14px;
  margin: 0 0 8px;
}

.service-meta p:last-child {
  margin-bottom: 0;
}

.service-meta strong {
  color: #1e3a5f;
  font-weight: 600;
}

.boundary-section {
  background-color: #f5f6f8;
  border-radius: 8px;
  padding: 28px 32px;
  margin-top: 40px;
}

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

.boundary-list li {
  padding: 10px 0 10px 24px;
  position: relative;
  font-size: 15px;
  color: #52606d;
  border-bottom: 1px solid #e4e7eb;
}

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

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #e67e22;
}

.boundary-note {
  font-size: 14px;
  color: #7b8794;
  margin-top: 16px;
}

/* ==========================================================================
   Pages - 工作方式
   ========================================================================== */

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

.methods-overview {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.methods-overview-text p {
  font-size: 15px;
  color: #52606d;
}

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

.method-step {
  background-color: #f5f6f8;
  border-radius: 8px;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.step-block {
  background-color: #ffffff;
  border-radius: 6px;
  padding: 16px 20px;
  border: 1px solid #e4e7eb;
}

.step-block h3 {
  font-size: 15px;
  margin-bottom: 8px;
  color: #1e3a5f;
}

.step-block p {
  font-size: 14px;
  color: #52606d;
  margin: 0;
}

.step-exception {
  grid-column: 1 / -1;
  background-color: #fdf3e7;
  border-color: #e8c9a8;
}

.step-exception h3 {
  color: #d06e12;
}

/* ==========================================================================
   Pages - 内容参考
   ========================================================================== */

.refs-intro {
  margin-bottom: 40px;
}

.refs-intro-figure {
  margin-top: 20px;
}

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

.refs-group-nav {
  margin-bottom: 40px;
}

.refs-group-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.refs-group-card {
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 24px 20px;
  border-top: 3px solid #1e3a5f;
}

.refs-group-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.refs-group-card p {
  font-size: 14px;
  color: #52606d;
  margin-bottom: 12px;
}

.refs-group-card a {
  font-size: 14px;
  font-weight: 600;
}

.refs-group-list {
  margin-bottom: 40px;
  padding: 28px 32px;
  background-color: #ffffff;
  border: 1px solid #e4e7eb;
  border-radius: 8px;
}

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

.refs-item {
  padding: 16px 0;
  border-bottom: 1px solid #e4e7eb;
}

.refs-item:last-child {
  border-bottom: none;
}

.refs-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.refs-item p {
  font-size: 14px;
  color: #52606d;
  margin: 0;
}

/* ==========================================================================
   Pages - 联系
   ========================================================================== */

.process-list {
  list-style: none;
  counter-reset: process-counter;
}

.process-item {
  counter-increment: process-counter;
  padding: 20px 0 20px 48px;
  position: relative;
  border-bottom: 1px solid #e4e7eb;
}

.process-item:last-child {
  border-bottom: none;
}

.process-item::before {
  content: counter(process-counter);
  position: absolute;
  left: 0;
  top: 20px;
  width: 32px;
  height: 32px;
  background-color: #1e3a5f;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

.process-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.process-item p {
  font-size: 14px;
  color: #52606d;
  margin-bottom: 8px;
}

.process-output {
  font-size: 14px;
  color: #1e3a5f;
}

.process-output strong {
  font-weight: 600;
}

.preparation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.prep-card {
  background-color: #f5f6f8;
  border-radius: 6px;
  padding: 20px;
}

.prep-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.prep-card p {
  font-size: 14px;
  color: #52606d;
  margin: 0;
}

.section-note {
  font-size: 14px;
  color: #7b8794;
  margin-top: 16px;
}

.section-note a {
  font-weight: 600;
}

/* ==========================================================================
   Pages - 404
   ========================================================================== */

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

.error-panel {
  text-align: center;
  max-width: 480px;
  padding: 40px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: #1e3a5f;
  margin: 0 0 8px;
  line-height: 1;
}

.error-panel h1 {
  font-size: 22px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #52606d;
  margin-bottom: 24px;
}

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

.error-help {
  font-size: 14px;
  color: #7b8794;
  margin-top: 24px;
}

.error-help a {
  font-weight: 600;
}

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

/* 平板 */
@media (max-width: 1024px) {
  .hero-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-media {
    order: 2;
  }

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

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

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

  .methods-overview {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 960px) {
  .sidebar-left {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .sidebar-left .sidebar-nav {
    position: static;
    order: 2;
  }

  .sidebar-left .inner-main {
    order: 1;
  }
}

/* 手机 */
@media (max-width: 768px) {
  .header-inner {
    height: auto;
    min-height: 64px;
    padding: 10px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    order: 3;
    width: 100%;
    display: block;
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }

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

  .site-nav .nav-list a {
    padding: 12px 8px;
    border-bottom: 1px solid #e4e7eb;
    border-left: 3px solid transparent;
  }

  .site-nav .nav-list a.is-current {
    border-left-color: #e67e22;
    border-bottom-color: #e4e7eb;
  }

  .site-main {
    padding: 24px 16px 48px;
  }

  .layout-shell,
  .page-layout {
    padding: 24px 16px 48px;
  }

  .inner-main {
    padding: 24px 20px 32px;
  }

  .hero-intro {
    padding: 32px 16px 28px;
    margin-bottom: 24px;
  }

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

  .hero-lead {
    font-size: 16px;
  }

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

  .content-media-primary img {
    height: 160px;
  }

  .status-bar,
  .services-table-section,
  .comparison-section,
  .process-section,
  .references-index-section,
  .faq-section {
    padding: 20px 16px;
    margin-bottom: 24px;
  }

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

  .status-item {
    padding: 16px;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .refs-grid,
  .refs-group-grid,
  .preparation-grid {
    grid-template-columns: 1fr;
  }

  .cta-banner {
    padding: 24px 20px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 16px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }

  .page-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
  }

  .page-title {
    font-size: 24px;
  }

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

  .step-exception {
    grid-column: 1;
  }

  .adjacent-links-grid {
    grid-template-columns: 1fr;
  }

  .service-content {
    gap: 16px;
  }

  .service-figure img,
  .methods-figure img,
  .refs-intro-figure img {
    height: 180px;
  }

  .boundary-section {
    padding: 20px 16px;
  }

  .refs-group-list {
    padding: 20px 16px;
  }

  .process-item {
    padding-left: 44px;
  }

  .error-code {
    font-size: 48px;
  }

  .error-panel {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .brand-tag {
    display: none;
  }

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

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

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

  .process-steps {
    grid-template-columns: 1fr;
  }

  .refs-grid,
  .refs-group-grid,
  .preparation-grid {
    grid-template-columns: 1fr;
  }

  .service-meta {
    padding: 14px 16px;
  }

  .adjacent-links-grid {
    grid-template-columns: 1fr;
  }
}