/* ==========================================================================
   base – 全局基础样式
   ========================================================================== */

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #1F2933;
  background-color: #F7F7F5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #1B4B8A;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  text-decoration: underline;
  color: #143A6B;
}

ul,
ol {
  list-style: none;
}

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

details summary {
  cursor: pointer;
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

/* ==========================================================================
   layout – 全站统一布局骨架
   ========================================================================== */

.site-header {
  background-color: #FFFFFF;
  border-bottom: 1px solid #E5E5E0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.brand-logo {
  font-size: 20px;
  font-weight: 700;
  color: #1F2933;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo:hover {
  text-decoration: none;
  color: #1F2933;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 12px;
  font-size: 15px;
  color: #1F2933;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background-color: #F0F0EC;
  text-decoration: none;
  color: #1B4B8A;
}

.nav-link.is-current {
  background-color: #1F2933;
  color: #FFFFFF;
  font-weight: 500;
}

.nav-link.is-current:hover {
  background-color: #1F2933;
  color: #FFFFFF;
}

.cta-button {
  display: inline-block;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 500;
  color: #FFFFFF;
  background-color: #D97706;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}

.cta-button:hover {
  background-color: #B85E00;
  text-decoration: none;
  color: #FFFFFF;
}

.site-main {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 20px;
}

.inner-main {
  padding-top: 32px;
  padding-bottom: 56px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #6B7280;
  margin-bottom: 24px;
}

.breadcrumb a {
  color: #1B4B8A;
}

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

.breadcrumb-sep {
  color: #9CA3AF;
}

.breadcrumb-current {
  color: #6B7280;
}

.page-header {
  margin-bottom: 28px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: #1F2933;
}

.page-description {
  margin-top: 10px;
  font-size: 15px;
  color: #4B5563;
  max-width: 720px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

.content-column {
  min-width: 0;
  min-width: 520px;
}

.sidebar-column,
.page-sidebar,
.sidebar {
  min-width: 0;
}

.site-footer {
  background-color: #FFFFFF;
  border-top: 1px solid #E5E5E0;
  margin-top: 32px;
}

.footer-top {
  max-width: 1060px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.7;
  max-width: 320px;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 12px;
}

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

.footer-nav ul li a,
.footer-links ul li a {
  font-size: 14px;
  color: #4B5563;
}

.footer-nav ul li a:hover,
.footer-links ul li a:hover {
  color: #1B4B8A;
}

.footer-bottom {
  border-top: 1px solid #E5E5E0;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-bottom p {
  font-size: 13px;
  color: #9CA3AF;
  margin: 0 auto;
}

.back-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 6px;
  background-color: #F0F0EC;
  color: #1F2933;
  font-size: 20px;
  line-height: 1;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.back-to-top:hover {
  background-color: #1B4B8A;
  color: #FFFFFF;
  text-decoration: none;
}

/* ==========================================================================
   components – 通用组件
   ========================================================================== */

/* 手风琴 FAQ */

.faq-accordion {
  border-top: 1px solid #E5E5E0;
}

.faq-item {
  border-bottom: 1px solid #E5E5E0;
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  font-size: 15px;
  font-weight: 500;
  color: #1F2933;
  position: relative;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: #D97706;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

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

.faq-item[open] summary {
  color: #1B4B8A;
}

.faq-answer {
  padding: 0 0 16px;
  font-size: 14px;
  color: #4B5563;
  line-height: 1.8;
}

.faq-answer p + p {
  margin-top: 8px;
}

.faq-next {
  margin-top: 8px;
}

.faq-next a {
  font-size: 13px;
  font-weight: 500;
}

/* 数据表 */

.compact-table,
.data-table {
  width: 100%;
  font-size: 14px;
  line-height: 1.6;
  border-top: 2px solid #1F2933;
}

.compact-table th,
.data-table th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: #1F2933;
  background-color: #F0F0EC;
  border-bottom: 1px solid #E5E5E0;
  white-space: nowrap;
}

.compact-table td,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #E5E5E0;
  vertical-align: top;
  color: #4B5563;
}

.compact-table tbody tr:nth-child(even),
.data-table tbody tr:nth-child(even) {
  background-color: #FAFAF8;
}

.compact-table tbody tr:hover,
.data-table tbody tr:hover {
  background-color: #F0F0EC;
}

.compact-table tbody td a,
.data-table tbody td a {
  color: #1B4B8A;
  font-weight: 500;
}

.table-scroll-wrap {
  overflow-x: auto;
}

.table-wrap {
  overflow-x: auto;
}

.table-footnote,
.table-note {
  font-size: 13px;
  color: #9CA3AF;
  margin-top: 10px;
  line-height: 1.6;
}

/* 侧栏 */

.sidebar-block {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-block h2,
.sidebar-heading {
  font-size: 15px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #E5E5E0;
}

.sidebar-links li {
  margin-bottom: 4px;
}

.sidebar-links li a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: #4B5563;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.sidebar-links li a:hover {
  color: #1B4B8A;
  border-left-color: #D97706;
  text-decoration: none;
}

.sidebar-figure {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  overflow: hidden;
}

.sidebar-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.sidebar-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
}

/* 相关链接条 */

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  padding: 16px 0;
  border-top: 1px solid #E5E5E0;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1F2933;
  margin-right: 8px;
}

.related-links-item {
  font-size: 14px;
  padding: 6px 12px;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 4px;
  color: #1B4B8A;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.related-links-item:hover {
  border-color: #1B4B8A;
  background-color: #F0F0EC;
  text-decoration: none;
}

/* 状态标签 */

.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  line-height: 1.5;
}

.badge-applicable {
  background-color: #E8F0E8;
  color: #2D6A2D;
}

/* 下一步入口 */

.next-step {
  margin-top: 40px;
  padding: 24px;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
}

.next-step > p {
  font-size: 15px;
  color: #4B5563;
  margin-bottom: 16px;
}

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

.next-links a {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  background-color: #1F2933;
  color: #FFFFFF;
  transition: background-color 0.2s ease;
}

.next-links a:hover {
  background-color: #1B4B8A;
  text-decoration: none;
}

/* ==========================================================================
   pages – 首页
   ========================================================================== */

.home-main {
  padding-top: 32px;
  padding-bottom: 56px;
}

/* 品牌定位区 */

.brand-statement {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.statement-tagline {
  font-size: 14px;
  font-weight: 500;
  color: #D97706;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.statement-content h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: #1F2933;
  margin-bottom: 12px;
}

.statement-lead {
  font-size: 15px;
  color: #4B5563;
  max-width: 560px;
}

.content-media-primary {
  border-radius: 8px;
  overflow: hidden;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
}

.content-media-primary img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.content-media-primary figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
}

/* 首屏双区 */

.hero-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

.hero-left,
.hero-right {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 28px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 8px;
  line-height: 1.4;
}

.section-intro {
  font-size: 14px;
  color: #6B7280;
  margin-bottom: 20px;
  line-height: 1.7;
}

.principle-list li {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #F0F0EC;
}

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

.step-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background-color: #1F2933;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  margin-top: 2px;
}

.step-content h3 {
  font-size: 15px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
}

.service-entry-list li {
  border-bottom: 1px solid #F0F0EC;
}

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

.service-entry-list li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  transition: transform 0.2s ease;
}

.service-entry-list li a:hover {
  text-decoration: none;
  transform: translateX(2px);
}

.service-entry-list li a:hover .service-name {
  color: #1B4B8A;
}

.service-name {
  font-size: 15px;
  font-weight: 600;
  color: #1F2933;
  min-width: 72px;
  transition: color 0.2s ease;
}

.service-desc {
  font-size: 13px;
  color: #6B7280;
  flex: 1;
  line-height: 1.6;
}

.entry-arrow {
  color: #D97706;
  font-size: 18px;
  flex-shrink: 0;
}

.hero-figure {
  margin-top: 24px;
  border-radius: 8px;
  overflow: hidden;
}

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

/* 定位说明段 */

.positioning-block {
  margin-bottom: 48px;
}

.positioning-block .section-title {
  margin-bottom: 12px;
}

.positioning-text {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
  max-width: 860px;
  margin-bottom: 16px;
}

.scenario-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 核验方法四判断 */

.method-grid {
  margin-bottom: 48px;
}

.method-grid .section-title {
  margin-bottom: 20px;
}

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

.method-item {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 20px;
}

.method-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 2px solid #D97706;
  display: inline-block;
}

.method-item p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
}

/* 三行文本链路 */

.text-links {
  margin-bottom: 48px;
  border-top: 1px solid #E5E5E0;
}

.text-link-row {
  border-bottom: 1px solid #E5E5E0;
}

.text-link-row a {
  display: block;
  padding: 18px 0;
  transition: padding-left 0.2s ease;
}

.text-link-row a:hover {
  text-decoration: none;
  padding-left: 8px;
}

.text-link-row a:hover .link-title {
  color: #1B4B8A;
}

.link-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 4px;
  transition: color 0.2s ease;
}

.link-desc {
  display: block;
  font-size: 14px;
  color: #6B7280;
  line-height: 1.7;
}

/* 术语速查表 */

.glossary-preview {
  margin-bottom: 48px;
}

.glossary-preview .section-title {
  margin-bottom: 8px;
}

.glossary-preview > .section-intro {
  margin-bottom: 16px;
}

.glossary-preview > .section-intro a {
  font-weight: 500;
}

/* FAQ 摘要 */

.faq-summary {
  margin-bottom: 48px;
}

.faq-summary .section-title {
  margin-bottom: 16px;
}

.faq-summary .faq-item summary {
  padding: 14px 0;
}

.faq-summary .faq-answer {
  font-size: 14px;
}

.faq-summary .faq-answer a {
  font-size: 13px;
  font-weight: 500;
}

.faq-more {
  margin-top: 16px;
}

.faq-more a {
  font-size: 14px;
  font-weight: 500;
}

/* 底部合作带 */

.bottom-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 32px;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
}

.cta-text {
  font-size: 16px;
  font-weight: 500;
  color: #1F2933;
}

.cta-button.primary {
  padding: 12px 24px;
  font-size: 15px;
}

/* ==========================================================================
   pages – 服务说明
   ========================================================================== */

.page-title-block {
  margin-bottom: 28px;
}

.page-intro {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
  max-width: 720px;
}

.service-matrix-section,
.boundary-section,
.delivery-standard-section {
  margin-bottom: 48px;
}

.service-matrix-section h2,
.boundary-section h2,
.delivery-standard-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 12px;
}

.service-matrix-section > p,
.boundary-section > p,
.delivery-standard-section > p {
  font-size: 14px;
  color: #4B5563;
  margin-bottom: 16px;
  line-height: 1.7;
}

.service-matrix-table th {
  white-space: nowrap;
}

.boundary-list {
  border-top: 1px solid #E5E5E0;
}

.boundary-list li {
  padding: 12px 0;
  border-bottom: 1px solid #E5E5E0;
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.boundary-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: #D97706;
}

.standard-list {
  margin-bottom: 20px;
}

.standard-list li {
  padding: 12px 0;
  border-bottom: 1px solid #F0F0EC;
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
}

.standard-list li strong {
  color: #1F2933;
  font-weight: 600;
  margin-right: 8px;
}

.delivery-figure {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  overflow: hidden;
}

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

.delivery-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
}

/* 翻页条 */

.page-turner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #E5E5E0;
}

.page-turner a {
  font-size: 14px;
  font-weight: 500;
  color: #1B4B8A;
}

.page-turner a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   pages – 合作流程
   ========================================================================== */

.process-steps {
  margin-bottom: 48px;
}

.process-step {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 24px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background-color: #1F2933;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
}

.step-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1F2933;
}

.step-body {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.step-col {
  padding: 16px;
  background-color: #FAFAF8;
  border-radius: 6px;
  border-left: 3px solid #D97706;
}

.step-col h3 {
  font-size: 14px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 8px;
}

.step-col p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
}

.step-figure {
  margin-top: 20px;
  border-radius: 8px;
  overflow: hidden;
  background-color: #F0F0EC;
}

.step-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.step-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: #6B7280;
  background-color: #FFFFFF;
  border-top: 1px solid #E5E5E0;
}

.timeline-table,
.material-checklist {
  margin-bottom: 48px;
}

.timeline-table h2,
.material-checklist h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 12px;
}

.material-checklist .section-desc {
  font-size: 14px;
  color: #4B5563;
  margin-bottom: 16px;
  line-height: 1.7;
}

.checklist {
  border-top: 1px solid #E5E5E0;
}

.checklist li {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid #E5E5E0;
  align-items: flex-start;
}

.check-item {
  font-size: 14px;
  font-weight: 600;
  color: #1F2933;
  min-width: 120px;
  flex-shrink: 0;
}

.check-desc {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
}

/* ==========================================================================
   pages – 适用场景
   ========================================================================== */

.page-heading {
  margin-bottom: 24px;
}

.scenario-figure {
  margin-bottom: 32px;
  border-radius: 8px;
  overflow: hidden;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
}

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

.scenario-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
}

.scenario-table-section,
.signal-list-section,
.next-step-section {
  margin-bottom: 48px;
}

.scenario-table-section h2,
.signal-list-section h2,
.next-step-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 12px;
}

.signal-list-section > p,
.next-step-section > p {
  font-size: 14px;
  color: #4B5563;
  margin-bottom: 16px;
  line-height: 1.7;
}

.signal-list {
  border-top: 1px solid #E5E5E0;
}

.signal-list li {
  padding: 12px 0;
  border-bottom: 1px solid #E5E5E0;
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  padding-left: 24px;
  position: relative;
}

.signal-list li::before {
  content: "›";
  position: absolute;
  left: 8px;
  color: #D97706;
  font-weight: 700;
}

.next-step-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.next-step-card {
  display: block;
  padding: 20px;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.next-step-card:hover {
  border-color: #1B4B8A;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.step-card-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: #D97706;
  margin-bottom: 6px;
}

.step-card-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 6px;
  transition: color 0.2s ease;
}

.next-step-card:hover .step-card-title {
  color: #1B4B8A;
}

.step-card-desc {
  display: block;
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
}

/* ==========================================================================
   pages – 常见问题
   ========================================================================== */

.faq-title-block {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.faq-title-block .title-text {
  flex: 1;
}

.title-figure {
  width: 200px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
}

.title-figure img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.faq-group {
  margin-bottom: 48px;
}

.faq-group h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #1F2933;
}

.faq-list {
  border-top: 1px solid #E5E5E0;
}

.faq-list .faq-item {
  border-bottom: 1px solid #E5E5E0;
}

.faq-list .faq-item summary {
  padding: 16px 0;
  font-size: 15px;
  font-weight: 500;
  color: #1F2933;
}

.faq-list .faq-item[open] summary {
  color: #1B4B8A;
}

.faq-related-links {
  margin-top: 32px;
}

.faq-related-links h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 16px;
}

.related-link-list {
  border-top: 1px solid #E5E5E0;
}

.related-link-list li {
  border-bottom: 1px solid #E5E5E0;
}

.related-link-list li a {
  display: block;
  padding: 12px 0;
  font-size: 14px;
  font-weight: 500;
  color: #1B4B8A;
  transition: padding-left 0.2s ease;
}

.related-link-list li a:hover {
  padding-left: 8px;
  text-decoration: underline;
}

/* ==========================================================================
   pages – 术语索引
   ========================================================================== */

.layout-shell.sidebar-right {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

.layout-shell.sidebar-right .content-column {
  min-width: 0;
  min-width: 520px;
}

.glossary-cards {
  margin-bottom: 48px;
}

.glossary-cards h2,
.glossary-table-section h2,
.related-links h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 16px;
}

.term-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.term-card {
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 20px;
}

.term-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1F2933;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 2px solid #D97706;
  display: inline-block;
}

.term-definition {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  margin-bottom: 8px;
}

.term-usage {
  font-size: 13px;
  color: #6B7280;
  line-height: 1.6;
  padding: 8px 12px;
  background-color: #FAFAF8;
  border-left: 3px solid #1B4B8A;
}

.glossary-table-section {
  margin-bottom: 48px;
}

.related-links .related-link-list {
  margin-bottom: 24px;
}

.related-links .related-link-list li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.related-links .related-link-list li a span {
  color: #D97706;
  font-size: 16px;
}

/* ==========================================================================
   pages – 404
   ========================================================================== */

.error-main {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
}

.error-panel {
  max-width: 560px;
  text-align: left;
  background-color: #FFFFFF;
  border: 1px solid #E5E5E0;
  border-radius: 8px;
  padding: 48px;
}

.error-code {
  font-size: 48px;
  font-weight: 700;
  color: #D97706;
  line-height: 1.2;
  margin-bottom: 12px;
}

.error-panel h1 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2933;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
  margin-bottom: 24px;
}

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

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: #1F2933;
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: #1B4B8A;
  text-decoration: none;
  color: #FFFFFF;
}

.btn-secondary {
  background-color: #FFFFFF;
  color: #1B4B8A;
  border: 1px solid #1B4B8A;
}

.btn-secondary:hover {
  background-color: #F0F0EC;
  text-decoration: none;
}

/* ==========================================================================
   responsive – 响应式
   ========================================================================== */

@media (max-width: 900px) {
  .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .layout-shell.sidebar-right {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .content-column,
  .layout-shell.sidebar-right .content-column {
    min-width: 0;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 20px;
    gap: 12px;
  }

  .brand-logo {
    order: 1;
  }

  .cta-button {
    order: 2;
    margin-left: auto;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    width: 100%;
    padding: 8px 0;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 14px 12px;
    border-radius: 4px;
  }

  .nav-link.is-current {
    background-color: #F0F0EC;
    color: #1B4B8A;
  }

  .brand-statement {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .content-media-primary img {
    height: 200px;
  }

  .hero-duo {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

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

  .faq-title-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .title-figure {
    width: 100%;
  }

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

  .bottom-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 20px 16px;
  }

  .footer-brand {
    grid-column: auto;
  }

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

  .back-to-top {
    order: -1;
  }

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

  .error-panel {
    padding: 32px 24px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 10px 16px;
  }

  .brand-logo {
    font-size: 18px;
  }

  .cta-button {
    padding: 8px 14px;
    font-size: 13px;
  }

  .site-main {
    padding: 0 16px;
  }

  .inner-main {
    padding-top: 24px;
    padding-bottom: 40px;
  }

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

  .hero-left,
  .hero-right {
    padding: 20px;
  }

  .process-step {
    padding: 20px;
  }

  .step-header h2 {
    font-size: 20px;
  }

  .checklist li {
    flex-direction: column;
    gap: 4px;
  }

  .check-item {
    min-width: 0;
  }

  .service-entry-list li a {
    align-items: flex-start;
  }

  .service-name {
    min-width: 64px;
  }

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

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

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