/* ============================================================
   base — 全局变量、reset、字体、基础元素
   ============================================================ */
:root {
  --color-primary: #1F2A44;
  --color-primary-dark: #16203A;
  --color-primary-light: #2C3A5E;
  --color-accent: #E4572E;
  --color-accent-hover: #C94A22;
  --color-bg: #F5F1E8;
  --color-card: #FFFFFF;
  --color-text: #2A3442;
  --color-text-light: #5B6B7C;
  --color-border: #D9DEE5;
  --color-border-dark: #B9C2CC;
  --color-white: #FFFFFF;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Microsoft YaHei', sans-serif;
  --container-width: 1160px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(31, 42, 68, 0.08);
  --shadow-md: 0 4px 12px rgba(31, 42, 68, 0.1);
  --shadow-lg: 0 8px 24px rgba(31, 42, 68, 0.14);
  --transition: 0.2s ease;
  --header-height: 72px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-accent);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

h4 {
  font-size: 1rem;
}

p {
  margin-bottom: 0.75rem;
}

strong {
  font-weight: 700;
}

/* ============================================================
   layout — 全站骨架：页头、主容器、页脚、面包屑
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(31, 42, 68, 0.18);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-link:hover {
  color: var(--color-white);
  opacity: 0.9;
}

.brand-name {
  display: inline-block;
}

.main-nav.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav.site-nav ul li a {
  display: inline-block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}

.main-nav.site-nav ul li a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.1);
}

.main-nav.site-nav ul li a.is-current {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.14);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.menu-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

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

.site-main.home-main {
  background-color: var(--color-bg);
}

.site-main.inner-main {
  background-color: var(--color-bg);
  padding-bottom: 64px;
}

/* 面包屑 */
.breadcrumb-wrap {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: var(--color-border-dark);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

/* 内页页面标题区 */
.page-header {
  background-color: var(--color-primary);
  padding: 28px 0;
}

.page-header .page-title {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  color: var(--color-white);
  font-size: 1.875rem;
  font-weight: 800;
}

/* 页脚 */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.75);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-brand {
  margin-bottom: 36px;
  max-width: 360px;
}

.footer-brand .brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand .brand-desc {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.65;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.link-group h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

.link-group ul li {
  margin-bottom: 8px;
}

.link-group ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.link-group ul li a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
}

.bottom-links {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}

.bottom-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.bottom-links a:hover {
  color: var(--color-white);
}

.service-boundary {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  margin-bottom: 12px;
}

.copyright {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ============================================================
   components — 通用组件：按钮、链接、卡片、表格、FAQ、侧栏
   ============================================================ */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(228, 87, 46, 0.3);
}

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

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

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: gap var(--transition), color var(--transition);
}

.text-link:hover {
  color: var(--color-accent-hover);
  gap: 8px;
}

/* 相关链接条 */
.related-links {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.related-links-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
  white-space: nowrap;
}

.related-links-item {
  font-size: 0.875rem;
  color: var(--color-primary);
  font-weight: 500;
}

.related-links-item:hover {
  color: var(--color-accent);
}

/* FAQ 折叠 */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: color var(--transition);
}

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

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-text-light);
  transition: transform var(--transition), color var(--transition);
}

.faq-item[open] summary::after {
  content: '−';
  color: var(--color-accent);
}

.faq-item[open] summary {
  color: var(--color-accent);
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 表格 */
.comparison-table-wrap {
  overflow-x: auto;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

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

.comparison-table thead th:first-child {
  width: 140px;
}

.comparison-table tbody th {
  background-color: var(--color-bg);
  color: var(--color-primary);
  font-weight: 600;
  text-align: left;
  padding: 14px 20px;
  vertical-align: top;
  white-space: nowrap;
}

.comparison-table tbody td {
  padding: 14px 20px;
  color: var(--color-text);
  vertical-align: top;
  line-height: 1.65;
}

.comparison-table tbody tr:nth-child(even) td {
  background-color: rgba(245, 241, 232, 0.4);
}

.comparison-table tbody tr:hover td {
  background-color: rgba(228, 87, 46, 0.05);
}

/* 侧栏 */
.related-pages {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.related-pages h2 {
  font-size: 1.125rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.related-pages ul li {
  margin-bottom: 10px;
}

.related-pages ul li a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  font-size: 0.9375rem;
  color: var(--color-primary);
  transition: background-color var(--transition), color var(--transition);
}

.related-pages ul li a:hover {
  background-color: rgba(228, 87, 46, 0.08);
  color: var(--color-accent);
}

.related-list li a {
  display: flex;
  flex-direction: column;
}

.related-name {
  font-weight: 600;
}

.related-desc {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ============================================================
   pages — 首页各模块
   ============================================================ */
/* 首屏 hero */
.hero {
  background-color: var(--color-primary);
  padding: 56px 0 64px;
}

.hero-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.hero h1 {
  color: var(--color-white);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  max-width: 560px;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-actions .btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.hero-actions .btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.hero-actions .btn-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-actions .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.update-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: 0.875rem;
}

.strip-label {
  color: var(--color-accent);
  font-weight: 700;
  white-space: nowrap;
}

.strip-text {
  color: rgba(255, 255, 255, 0.75);
}

.hero-figure {
  max-width: var(--container-width);
  margin: 32px auto 0;
  padding: 0 24px;
}

.hero-figure img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-primary-light);
}

.hero-figure figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-figure figcaption::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* 通用 section 头部 */
.section-head {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  margin-bottom: 32px;
}

.section-head h2 {
  font-size: 1.625rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.section-head p {
  color: var(--color-text-light);
  font-size: 1rem;
  max-width: 640px;
}

/* 能力摘要 */
.capability-summary {
  padding: 56px 0 24px;
  background-color: var(--color-bg);
}

.capability-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.capability-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.capability-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-dark);
}

.capability-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.capability-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

.capability-card .card-example {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text);
}

/* 核心服务矩阵 */
.service-matrix {
  padding: 48px 0;
  background-color: var(--color-card);
}

.service-matrix .section-head {
  margin-bottom: 32px;
}

.matrix-table {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.matrix-row {
  display: grid;
  grid-template-columns: 160px 1fr 1fr 1fr;
  border-bottom: 1px solid var(--color-border);
}

.matrix-row:last-child {
  border-bottom: none;
}

.matrix-row.matrix-head {
  background-color: var(--color-primary);
}

.matrix-head .matrix-cell {
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 14px 20px;
}

.matrix-row:not(.matrix-head) .matrix-cell {
  padding: 16px 20px;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text);
}

.matrix-row:not(.matrix-head) .matrix-cell.row-label {
  background-color: var(--color-bg);
  font-weight: 600;
  color: var(--color-primary);
}

.matrix-row:not(.matrix-head):hover .matrix-cell {
  background-color: rgba(245, 241, 232, 0.5);
}

.matrix-row:not(.matrix-head):hover .matrix-cell.row-label {
  background-color: var(--color-bg);
}

/* 场景摘要 */
.scenario-summary {
  padding: 56px 0;
  background-color: var(--color-bg);
}

.scenario-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.scenario-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-dark);
}

.scenario-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background-color: var(--color-border);
}

.scenario-card h3 {
  padding: 20px 20px 8px;
  font-size: 1.125rem;
  font-weight: 700;
}

.scenario-card p {
  padding: 0 20px;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 12px;
}

.scenario-card a {
  display: inline-block;
  margin: 0 20px 20px;
  color: var(--color-accent);
  font-size: 0.9375rem;
  font-weight: 600;
}

.scenario-card a:hover {
  color: var(--color-accent-hover);
}

/* 流程纵线 */
.process-timeline {
  padding: 56px 0;
  background-color: var(--color-card);
}

.timeline-list {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 56px;
  margin-bottom: 32px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: 12px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 3px solid var(--color-card);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 8px;
}

.timeline-content .deliverable {
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border-left: 3px solid var(--color-accent);
  padding: 8px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 0;
}

.process-timeline .text-link {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

/* 更新记录摘要 */
.update-summary {
  padding: 56px 0;
  background-color: var(--color-bg);
}

.update-card {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.update-version {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.version-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.version-date {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.update-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.update-card > p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  max-width: 720px;
}

.rule-note {
  margin-top: 20px;
  padding: 16px 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.rule-note p {
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0;
}

.update-card .text-link {
  margin-top: 20px;
}

/* FAQ 摘要 */
.faq-preview {
  padding: 56px 0;
  background-color: var(--color-card);
}

.faq-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.faq-preview .text-link {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

/* 合作入口 */
.cooperation-entry {
  padding: 56px 0;
  background-color: var(--color-primary);
}

.entry-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.entry-left h2 {
  color: var(--color-white);
  font-size: 1.625rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.entry-left p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 640px;
}

.entry-actions {
  max-width: var(--container-width);
  margin: 28px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.entry-actions .btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.entry-actions .btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.entry-actions .btn-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.entry-actions .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

/* ============================================================
   pages — 内页：服务对象 fwdx
   ============================================================ */
.page-title-area,
.page-title-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 40px;
}

.page-title-content,
.page-title-inner,
.title-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-title-content .page-intro,
.page-title-content .page-lead,
.title-block .page-lead,
.page-title-text .page-lead,
.title-text .page-lead {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  line-height: 1.75;
  max-width: 720px;
}

.page-title-figure,
.page-title-media,
.title-media {
  width: 100%;
}

.page-title-figure img,
.page-title-media img,
.title-media img {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background-color: var(--color-border);
}

.page-title-figure figcaption,
.page-title-media figcaption,
.title-media figcaption {
  margin-top: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

/* 对象目录 */
.object-directory {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.object-directory h2,
.basic-conditions h2,
.not-applicable h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.object-directory .section-lead,
.basic-conditions .section-lead,
.not-applicable .section-lead {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 640px;
}

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

.directory-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.directory-item:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.directory-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.directory-item h3::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.directory-item p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* 合作基本条件 */
.basic-conditions {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

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

.condition-list li {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.condition-list li h3 {
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.condition-list li h3::before {
  content: attr(data-index);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.condition-list li p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* 不适用需求 */
.not-applicable {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

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

.na-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  padding: 20px;
}

.na-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.na-item p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* 相关页面卡片 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-card {
  display: block;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.related-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.related-card p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ============================================================
   pages — 内页：方案对比 fabj
   ============================================================ */
.comparison-table-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.comparison-table-section h2,
.adaptation-suggestion h2,
.next-step h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.comparison-table-section .section-desc,
.adaptation-suggestion .section-desc,
.next-step .section-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 640px;
}

/* 适配建议 */
.adaptation-suggestion {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

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

.suggestion-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.suggestion-card:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.suggestion-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.suggestion-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* 下一步入口 */
.next-step {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

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

.entry-card {
  display: block;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.entry-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.entry-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.entry-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 12px;
}

.entry-link {
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
}

/* ============================================================
   pages — 内页：适用场景 sycs
   ============================================================ */
.scene-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.scene-list > h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.scene-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.scene-card:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.scene-media {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.scene-media img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  background-color: var(--color-border);
}

.scene-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.scene-content .scene-desc {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 16px;
}

.scene-detail {
  margin-bottom: 12px;
}

.scene-detail h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.scene-detail ul {
  padding-left: 18px;
  margin-bottom: 12px;
}

.scene-detail ul li {
  list-style: disc;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 4px;
}

.scene-detail p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

.scene-audience {
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.scene-audience strong {
  color: var(--color-primary);
  margin-right: 6px;
}

/* ============================================================
   pages — 内页：选择指南 xzzs
   ============================================================ */
.guide-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.guide-steps .section-head {
  padding: 0;
  margin-bottom: 28px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step-item {
  display: flex;
  gap: 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.step-item:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 1.125rem;
  font-weight: 800;
  border-radius: 50%;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-content > p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 12px;
}

.step-output {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background-color: var(--color-bg);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
}

.output-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
}

.step-output p {
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0;
}

/* 常见误区 */
.missteps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.missteps .section-head {
  padding: 0;
  margin-bottom: 28px;
}

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

.misstep-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.misstep-card:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.misstep-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.misstep-card h3::before {
  content: '!';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.misstep-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* 下一步 */
.next-step-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.next-step-text h2 {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.next-step-text p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

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

/* ============================================================
   pages — 内页：合作流程 hzlc
   ============================================================ */
.process-lines {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.process-lines h2,
.preparation-checklist h2,
.faq-entry h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.process-lines .section-desc,
.preparation-checklist .section-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 640px;
}

.process-steps {
  position: relative;
  padding-left: 24px;
}

.process-steps::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background-color: var(--color-border);
}

.process-step {
  position: relative;
  padding-left: 32px;
  margin-bottom: 24px;
}

.process-step:last-child {
  margin-bottom: 0;
}

.process-step .step-number {
  position: absolute;
  left: -24px;
  top: 0;
  width: 40px;
  height: 40px;
  font-size: 1rem;
}

.step-body h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-work {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 10px;
}

.step-deliverable {
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
  margin-bottom: 0;
}

.step-deliverable strong {
  color: var(--color-accent);
  margin-right: 4px;
}

/* 启动准备清单 */
.preparation-checklist {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

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

.checklist li {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.checklist li:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.checklist li h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.checklist li h3::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.checklist li p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

/* FAQ 入口 */
.faq-entry {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.faq-preview-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.faq-preview-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-preview-item:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.faq-preview-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.faq-preview-item p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

.faq-entry > p {
  font-size: 0.9375rem;
}

.faq-entry > p a {
  color: var(--color-accent);
  font-weight: 600;
}

.faq-entry > p a:hover {
  color: var(--color-accent-hover);
}

/* ============================================================
   pages — 内页：常见疑问 cjwt
   ============================================================ */
.faq-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.faq-list .section-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.faq-list .faq-item .answer-content {
  padding: 0 20px 16px;
}

.faq-list .faq-item .answer-content p {
  padding: 0;
  margin-bottom: 0;
}

/* 侧栏 */
.related-pages .aside-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

/* ============================================================
   pages — 内页：更新记录 gxjl
   ============================================================ */
.version-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.version-list > h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.version-list .section-intro {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 640px;
}

.version-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.version-item:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-sm);
}

.version-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
}

.version-header h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  flex: 1;
}

.version-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background-color: var(--color-border);
  color: var(--color-text);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.version-tag.current {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.version-header time {
  font-size: 0.875rem;
  color: var(--color-text-light);
  white-space: nowrap;
}

.version-body {
  padding: 0 20px 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.version-body h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.version-body ul {
  padding-left: 18px;
  margin-bottom: 16px;
}

.version-body ul li {
  list-style: disc;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 4px;
}

.version-body p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 0;
}

.current-version {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

/* 规则说明摘要 */
.rule-summary {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.rule-summary > h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
}

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

.rule-list li {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 20px;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* 侧栏 */
.related-links h2 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.related-links ul li {
  margin-bottom: 10px;
}

.related-links ul li a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  font-size: 0.9375rem;
  color: var(--color-primary);
  transition: background-color var(--transition), color var(--transition);
}

.related-links ul li a:hover {
  background-color: rgba(228, 87, 46, 0.08);
  color: var(--color-accent);
}

/* ============================================================
   pages — 404 页面
   ============================================================ */
.error-main {
  background-color: var(--color-bg);
  padding: 80px 24px;
}

.error-panel {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
}

.error-code {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 12px;
}

.error-panel h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

.error-help {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ============================================================
   responsive — 响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .main-nav.site-nav ul li a {
    padding: 8px 10px;
    font-size: 0.875rem;
  }

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

  .matrix-row {
    grid-template-columns: 140px 1fr 1fr 1fr;
  }

  .suggestion-grid,
  .na-grid,
  .missteps-grid,
  .rule-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .scene-card {
    grid-template-columns: 240px 1fr;
    gap: 20px;
  }
}

@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }

  .main-nav.site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 16px rgba(31, 42, 68, 0.2);
    display: none;
  }

  .main-nav.site-nav.is-open {
    display: block;
  }

  .main-nav.site-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px;
    gap: 4px;
  }

  .main-nav.site-nav ul li a {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .header-inner {
    position: relative;
  }

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

  .capability-card:last-child {
    grid-column: span 2;
  }

  .scenario-card:last-child {
    grid-column: span 2;
  }

  .matrix-row {
    grid-template-columns: 120px 1fr 1fr;
  }

  .matrix-head .matrix-cell:last-child {
    display: none;
  }

  .matrix-row .matrix-cell:last-child {
    display: none;
  }

  .directory-grid,
  .condition-list,
  .next-step-grid,
  .faq-preview-list,
  .checklist {
    grid-template-columns: 1fr;
  }

  .suggestion-grid,
  .na-grid,
  .missteps-grid,
  .rule-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero h1 {
    font-size: 1.875rem;
  }

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

  .scene-media img {
    max-height: 220px;
    height: auto;
  }

  .next-step-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .brand-link {
    font-size: 1.0625rem;
  }

  .page-header .page-title {
    font-size: 1.5rem;
    padding: 0 16px;
  }

  .breadcrumb {
    padding: 10px 16px;
  }

  .page-title-area,
  .page-title-block {
    padding: 24px 16px 32px;
  }

  .section-head {
    padding: 0 16px;
  }

  .capability-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .capability-card:last-child,
  .scenario-card:last-child {
    grid-column: auto;
  }

  .matrix-table {
    padding: 0;
    overflow-x: auto;
  }

  .matrix-row {
    grid-template-columns: 100px 1fr 1fr;
    min-width: 480px;
  }

  .hero {
    padding: 40px 0 48px;
  }

  .hero-content {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 1.625rem;
  }

  .hero-figure {
    padding: 0 16px;
  }

  .hero-figure img {
    max-height: 240px;
  }

  .timeline-list {
    padding: 0 16px;
  }

  .update-card {
    padding: 0 16px;
  }

  .faq-list {
    padding: 0 16px;
  }

  .cooperation-entry {
    padding: 40px 0;
  }

  .entry-left {
    padding: 0 16px;
  }

  .entry-actions {
    padding: 0 16px;
  }

  .footer-inner {
    padding: 40px 16px 24px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .object-directory,
  .basic-conditions,
  .not-applicable,
  .comparison-table-section,
  .adaptation-suggestion,
  .next-step,
  .scene-list,
  .guide-steps,
  .missteps,
  .next-step-inner,
  .process-lines,
  .preparation-checklist,
  .faq-entry,
  .version-list,
  .rule-summary {
    padding-left: 16px;
    padding-right: 16px;
  }

  .suggestion-grid,
  .na-grid,
  .missteps-grid,
  .rule-list {
    grid-template-columns: 1fr;
  }

  .timeline-list::before {
    left: 16px;
  }

  .timeline-item {
    padding-left: 48px;
  }

  .timeline-marker {
    left: 8px;
  }

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

  .process-step {
    padding-left: 28px;
  }

  .process-step .step-number {
    left: -16px;
    width: 36px;
    height: 36px;
    font-size: 0.9375rem;
  }

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

  .step-number {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .version-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .version-header h3 {
    flex-basis: 100%;
  }

  .version-header time {
    margin-left: auto;
  }

  .error-main {
    padding: 48px 16px;
  }

  .error-panel {
    padding: 32px 20px;
  }

  .error-code {
    font-size: 2.5rem;
  }

  .related-links {
    margin: 24px 16px 0;
    padding: 16px;
  }

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

  .comparison-table-wrap {
    border-radius: var(--radius-md);
  }
}

@media (max-width: 390px) {
  .brand-link {
    font-size: 0.9375rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .entry-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .entry-actions .btn-primary,
  .entry-actions .btn-secondary {
    width: 100%;
  }

  .next-step-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .next-step-actions .btn-primary,
  .next-step-actions .btn-secondary {
    width: 100%;
  }

  .error-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .error-actions .btn-primary,
  .error-actions .btn-secondary {
    width: 100%;
  }

  .update-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}