/* ==========================================================================
   base
   ========================================================================== */
:root {
  --bg-body: #f4f5f7;
  --bg-card: #ffffff;
  --bg-deep: #1f2429;
  --bg-soft: #eef0f2;
  --text-main: #23272d;
  --text-sub: #6b7280;
  --text-light: #9ca3af;
  --text-invert: #f4f5f7;
  --accent: #2f5d62;
  --accent-soft: #e4ecec;
  --line: #d1d5db;
  --line-soft: #e5e7eb;
  --status: #4b5563;
  --shadow-card: 0 2px 8px rgba(35, 39, 45, 0.06);
  --shadow-card-hover: 0 4px 14px rgba(35, 39, 45, 0.1);
  --radius: 6px;
  --radius-sm: 4px;
  --container: 1200px;
  --container-inner: 880px;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --transition: 0.2s ease;
}

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

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

body {
  font-family: var(--font-stack);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: #24474b;
}

ul,
ol {
  list-style: none;
}

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

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 17px;
}

p {
  color: var(--text-main);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   layout
   ========================================================================== */

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--line-soft);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-main);
}

.brand-slogan {
  font-size: 13px;
  color: var(--text-sub);
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list li a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 2px solid transparent;
  line-height: 1.6;
}

.nav-list li a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent-soft);
}

.nav-list li a.is-current {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-footer {
  background: var(--bg-deep);
  color: var(--text-invert);
  margin-top: 0;
}

.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .brand-name {
  color: var(--text-invert);
  font-size: 20px;
}

.footer-brand .brand-slogan {
  color: var(--text-light);
  font-size: 13px;
  margin-top: 4px;
}

.footer-desc {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--text-invert);
  font-size: 15px;
  margin-bottom: 12px;
}

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

.footer-col ul li a {
  color: var(--text-light);
  font-size: 14px;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 24px;
  text-align: center;
  color: var(--text-light);
  font-size: 13px;
}

.footer-bottom p {
  color: var(--text-light);
  font-size: 13px;
}

/* 内页布局 */

.site-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.site-inner {
  max-width: var(--container);
  margin: 0 auto;
}

.layout-shell {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

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

/* 面包屑 */

.breadcrumb {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

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

.breadcrumb-current {
  color: var(--text-main);
}

/* 页面标题区 */

.page-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.page-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  font-weight: 500;
}

.page-title {
  font-size: 34px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 720px;
  line-height: 1.8;
}

/* 侧栏 */

.sub-nav,
.page-sidebar,
.sidebar-nav,
.tree-nav {
  background: #ffffff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.sub-nav-title,
.tree-nav-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 12px;
}

.sub-nav-list li a,
.tree-nav ul li a,
.sidebar-nav ul li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}

.sub-nav-list li a:hover,
.tree-nav ul li a:hover,
.sidebar-nav ul li a:hover {
  background: var(--bg-soft);
  color: var(--accent);
}

.sub-nav-list li a.is-current,
.tree-nav ul li a.is-current,
.sidebar-nav ul li a.is-current,
.sidebar-nav ul li a.is-current-side {
  background: var(--accent-soft);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 500;
}

.sub-nav-note {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.sub-nav-note p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 侧栏分组 */

.sub-nav-group {
  margin-bottom: 20px;
}

.sub-nav-group h3,
.sidebar-nav h4 {
  font-size: 14px;
  color: var(--text-sub);
  font-weight: 600;
  padding: 0 12px;
  margin-bottom: 8px;
}

.sub-nav-group ul li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}

.sub-nav-group ul li a:hover {
  background: var(--bg-soft);
  color: var(--accent);
}

.sub-nav-group ul li a.is-current {
  background: var(--accent-soft);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 500;
}

/* ==========================================================================
   components
   ========================================================================== */

/* 按钮 */

.btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1.6;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn-primary:hover {
  background: #24474b;
  color: #ffffff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--text-main);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 图片容器 */

.content-media {
  margin: 24px 0;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.content-media figcaption {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 8px;
  line-height: 1.6;
}

.hero-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* 卡片通用 */

.entry-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.entry-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.entry-no,
.entry-num,
.entry-number,
.entry-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.entry-card h3,
.entry-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.entry-card p,
.entry-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 相关入口 */

.entry-grid,
.entry-row,
.entry-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.entry-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.entry-card-list .entry-card {
  display: flex;
  flex-direction: column;
}

/* 表格 */

.params-table,
.param-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.params-table th,
.param-table th {
  background: var(--bg-deep);
  color: var(--text-invert);
  font-weight: 500;
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--bg-deep);
}

.params-table td,
.param-table td {
  padding: 10px 14px;
  border: 1px solid var(--line-soft);
  color: var(--text-main);
  background: #ffffff;
  vertical-align: top;
}

.params-table tr:nth-child(even) td,
.param-table tr:nth-child(even) td {
  background: var(--bg-soft);
}

.table-wrap {
  overflow-x: auto;
  margin: 16px 0;
}

.table-note {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 12px;
}

.table-note a {
  color: var(--accent);
  font-weight: 500;
}

/* 折叠问答 */

.faq-item {
  background: #ffffff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  margin-bottom: 12px;
  padding: 0;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-main);
  list-style: none;
  position: relative;
  padding-right: 40px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--accent);
}

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

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* 相关链接条 */

.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.related-links-label {
  font-size: 14px;
  color: var(--text-sub);
  font-weight: 500;
}

.related-links-item {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
}

/* ==========================================================================
   pages
   ========================================================================== */

/* --- 首页 --- */

.home-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.hero-archive {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0 40px;
}

.hero-copy h1 {
  font-size: 34px;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-positioning {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 560px;
}

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

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-card);
}

.hero-figure {
  margin-bottom: 12px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.file-id {
  font-size: 13px;
  color: var(--text-sub);
  font-family: "SF Mono", "Roboto Mono", monospace;
  font-variant-numeric: tabular-nums;
}

.status {
  font-size: 13px;
  color: var(--status);
  font-weight: 500;
}

.content-media-primary {
  margin: 0 0 48px;
}

.content-media-primary img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* 服务能力编号索引 */

.service-index {
  padding: 48px 0;
}

.service-index h2,
.process-params h2,
.recent-activity h2,
.boundary-summary h2,
.engage-steps h2,
.faq-section h2,
.archive-entry h2 {
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 680px;
  margin-bottom: 28px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.card-number {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.service-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-card a {
  font-size: 14px;
  font-weight: 500;
}

/* 执行流程与作业参数 */

.process-params {
  padding: 48px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.process-steps h2 {
  margin-bottom: 8px;
}

.step-list {
  counter-reset: step-counter;
}

.step-list li {
  position: relative;
  padding: 20px 0;
  padding-left: 56px;
}

.step-list li::before {
  counter-increment: step-counter;
  content: counter(step-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 20px;
  width: 36px;
  height: 36px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
}

.step-list li h3 {
  font-size: 17px;
  margin-bottom: 4px;
}

.step-list li p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.step-result {
  display: block;
  font-size: 13px;
  color: var(--accent);
  margin-top: 4px;
  font-weight: 500;
}

.params-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.params-table-wrap h3 {
  font-size: 17px;
  margin-bottom: 16px;
}

/* 近期服务动态 */

.recent-activity {
  padding: 48px 0;
}

.activity-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: start;
}

.calendar-view {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.calendar-view h3 {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.month-list li {
  margin-bottom: 8px;
}

.month-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}

.month-list li a:hover {
  background: var(--bg-soft);
  color: var(--accent);
  border-left-color: var(--accent);
}

.activity-feed {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.activity-item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

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

.activity-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 8px;
}

.activity-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--status);
  background: var(--bg-soft);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* 服务边界摘要条 */

.boundary-summary {
  padding: 48px 0;
}

.boundary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.boundary-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.boundary-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

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

.boundary-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}

.boundary-card a {
  font-size: 14px;
  font-weight: 500;
}

/* 开始接洽三步 */

.engage-steps {
  padding: 48px 0;
}

.engage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.engage-item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.engage-no {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

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

.engage-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}

.engage-item a {
  font-size: 14px;
  font-weight: 500;
}

/* 常见问题 */

.faq-section {
  padding: 48px 0;
}

/* 页脚前归档入口条 */

.archive-entry {
  padding: 48px 0;
}

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

/* --- 服务项目页 --- */

.page-service .layout-shell {
  grid-template-columns: 240px 1fr;
}

.stage-section {
  margin-bottom: 48px;
}

.stage-section h2,
.param-section h2,
.scenario-section h2 {
  margin-bottom: 8px;
}

.stage-section .section-intro,
.param-section .section-intro,
.scenario-section .section-intro {
  margin-bottom: 24px;
}

.stage-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.stage-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
}

.stage-content h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.stage-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 6px;
}

.stage-result,
.stage-exception {
  font-size: 14px;
  line-height: 1.7;
}

.stage-result strong,
.stage-exception strong {
  font-weight: 600;
  color: var(--text-main);
}

.param-section {
  margin-bottom: 48px;
}

.param-table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
}

.stage-figure {
  margin: 24px 0;
}

.stage-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.scenario-section {
  margin-bottom: 48px;
}

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

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.scenario-card h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.scenario-card ul li {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}

.scenario-card ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.related-entry {
  margin-top: 48px;
}

.related-entry .entry-card {
  background: var(--bg-card);
}

.entry-content h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.entry-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}

.entry-content a {
  font-size: 14px;
  font-weight: 500;
}

/* --- 执行团队页 --- */

.page-team .layout-shell {
  grid-template-columns: 240px 1fr;
}

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

.team-roles,
.team-sequence,
.team-principles {
  margin-bottom: 48px;
}

.team-roles h2,
.team-sequence h2,
.team-principles h2 {
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 680px;
  margin-bottom: 24px;
}

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

.role-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.role-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.role-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.role-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}

.role-meta {
  font-size: 14px;
  color: var(--text-main);
}

.role-meta dt {
  font-weight: 600;
  margin-top: 8px;
}

.role-meta dd {
  color: var(--text-sub);
  margin-left: 0;
}

.sequence-figure {
  margin: 24px 0;
}

.sequence-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.sequence-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.sequence-steps li {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.sequence-steps li h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.sequence-steps li p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.principle-list li {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.principle-list li h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.principle-list li p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* --- 结果记录页 --- */

.page-archive .page-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.page-archive .page-sidebar {
  position: sticky;
  top: 96px;
}

.content-section {
  margin-bottom: 48px;
}

.content-section h2 {
  margin-bottom: 8px;
}

.section-note {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 16px;
}

.card-grid {
  display: grid;
  gap: 20px;
}

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

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

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

.info-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.content-media .media-main {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.entry-bar {
  margin-top: 48px;
}

.entry-bar .entry-card {
  display: flex;
  flex-direction: column;
}

.step-list.step-body {
  counter-reset: step-counter;
}

.step-list.step-body li {
  position: relative;
  padding: 20px 0 20px 56px;
}

.step-list.step-body li::before {
  counter-increment: step-counter;
  content: counter(step-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 20px;
  width: 36px;
  height: 36px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
}

.step-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

/* --- 服务规则页 --- */

.page-rule .layout-shell {
  grid-template-columns: 240px 1fr;
}

.rule-section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 24px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-variant-numeric: tabular-nums;
}

.content-media-inline {
  margin: 20px 0;
}

.content-media-inline img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.rule-section .section-desc {
  margin-bottom: 20px;
}

.rule-boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.rule-boundary-grid .boundary-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.card-title {
  font-size: 17px;
  margin-bottom: 12px;
}

.rule-list li {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  padding: 6px 0;
  padding-left: 16px;
  position: relative;
}

.rule-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* 接洽流程 */

.contact-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.contact-steps .step-item {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
}

.step-index {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.step-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.contact-steps .step-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 交付与反馈 */

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.delivery-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 24px;
}

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

.delivery-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.compliance-note {
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 48px;
}

.compliance-note p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* --- 历史资料页 --- */

.page-history .layout-shell {
  grid-template-columns: 240px 1fr;
}

.page-lead {
  font-size: 15px;
  color: var(--text-sub);
  margin-top: 8px;
  max-width: 680px;
}

.archive-intro-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 48px;
}

.archive-intro-copy h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

.archive-intro-copy p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 8px;
}

.archive-intro-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.archive-year-nav {
  margin-bottom: 40px;
}

.archive-year-nav h2 {
  margin-bottom: 8px;
}

.year-nav-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.year-nav-list a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.year-nav-list a:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.archive-month-list {
  margin-bottom: 48px;
}

.archive-month-list h2 {
  margin-bottom: 24px;
}

.archive-year-group {
  margin-bottom: 32px;
}

.archive-year-group h3 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.month-summary-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.month-summary-item {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.month-label {
  flex-shrink: 0;
  width: 48px;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.month-content {
  flex: 1;
}

.month-topic {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}

.month-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.archive-entry-bar {
  margin-top: 48px;
}

.archive-entry-bar h2 {
  margin-bottom: 20px;
}

/* --- 404 --- */

.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 80px 24px;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-section {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 48px 40px;
  max-width: 560px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.error-section h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 24px;
}

.error-link {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  color: #ffffff;
  background: var(--accent);
  border-radius: var(--radius);
}

.error-link:hover {
  background: #24474b;
  color: #ffffff;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 980px) {
  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid var(--line-soft);
    box-shadow: 0 4px 12px rgba(35, 39, 45, 0.08);
    display: block;
    padding: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 8px 24px;
    gap: 0;
  }

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

  .nav-list li a {
    display: block;
    padding: 12px 8px;
    border-bottom: 1px solid var(--line-soft);
    border-left: 3px solid transparent;
  }

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

  .nav-list li a.is-current {
    color: var(--accent);
    border-left-color: var(--accent);
    border-bottom-color: var(--line-soft);
  }

  .layout-shell,
  .page-archive .page-layout,
  .page-rule .layout-shell,
  .page-service .layout-shell,
  .page-team .layout-shell,
  .page-history .layout-shell {
    grid-template-columns: 180px 1fr;
    gap: 24px;
  }

  .hero-archive {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .process-params,
  .activity-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .archive-intro-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

@media (max-width: 720px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-slogan {
    display: none;
  }

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

  .home-main {
    padding: 0 16px 48px;
  }

  .layout-shell,
  .page-archive .page-layout,
  .page-rule .layout-shell,
  .page-service .layout-shell,
  .page-team .layout-shell,
  .page-history .layout-shell {
    display: block;
  }

  .sub-nav,
  .page-sidebar,
  .sidebar-nav,
  .tree-nav {
    display: none;
  }

  .inner-main,
  .content-area {
    width: 100%;
  }

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

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

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

  .hero-archive {
    padding: 24px 0;
  }

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

  .hero-positioning {
    font-size: 15px;
  }

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

  .hero-actions .btn {
    text-align: center;
  }

  .service-grid,
  .boundary-cards,
  .engage-grid,
  .scenario-grid,
  .role-grid,
  .principle-list,
  .delivery-grid,
  .rule-boundary-grid,
  .card-grid.row-3 {
    grid-template-columns: 1fr;
  }

  .entry-grid,
  .entry-row,
  .entry-card-list,
  .entry-cards {
    grid-template-columns: 1fr;
  }

  .sequence-steps,
  .contact-steps {
    grid-template-columns: 1fr;
  }

  .activity-layout {
    display: block;
  }

  .calendar-view {
    margin-bottom: 20px;
  }

  .month-list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
  }

  .month-list li {
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .month-list li a {
    white-space: nowrap;
  }

  .archive-year-nav .year-nav-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .archive-year-nav .year-nav-list a {
    flex-shrink: 0;
  }

  .month-summary-item {
    flex-direction: column;
    gap: 8px;
  }

  .month-label {
    width: auto;
  }

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

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

  .footer-bottom {
    padding: 16px;
  }

  .stage-item {
    grid-template-columns: 40px 1fr;
    gap: 12px;
  }

  .stage-number {
    font-size: 20px;
  }

  .params-table-wrap {
    padding: 12px;
  }

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

  .params-table,
  .param-table {
    min-width: 560px;
  }

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

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

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

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .brand-name {
    font-size: 20px;
  }

  .page-tag {
    font-size: 12px;
  }

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

  .section-title {
    font-size: 20px;
    flex-wrap: wrap;
  }

  .activity-item {
    padding: 16px;
  }

  .service-card,
  .boundary-card,
  .engage-item,
  .scenario-card,
  .role-card,
  .delivery-card,
  .info-card {
    padding: 20px;
  }

  .entry-card {
    padding: 20px;
  }

  .hero-card {
    padding: 12px;
  }
}

/* ==========================================================================
   print
   ========================================================================== */

@media print {
  .site-header,
  .site-nav,
  .nav-toggle,
  .sub-nav,
  .page-sidebar,
  .sidebar-nav,
  .tree-nav,
  .related-links,
  .related-entry,
  .entry-bar,
  .archive-entry-bar,
  .footer-grid {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .site-main,
  .layout-shell,
  .inner-main,
  .content-area {
    max-width: 100%;
    padding: 0;
    display: block;
  }

  .page-header {
    border-bottom: 1px solid #000000;
  }

  .site-footer {
    background: #ffffff;
    color: #000000;
    border-top: 1px solid #000000;
  }

  .footer-bottom {
    border-top: none;
    padding: 12px 0;
    color: #000000;
  }

  .footer-bottom p {
    color: #000000;
  }
}