:root {
  --paper: #f6f3ec;
  --sheet: #fffdf8;
  --ink: #17222c;
  --ink-soft: #5d6b76;
  --rule: #ddd6c7;
  --amber: #a8691c;
  --green: #1f6f5c;
  --navy: #17222c;
  --radius: 2px;
  --shell: 1180px;
  --gutter: 32px;
}

/* ============ base ============ */

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: -apple-system, "Segoe UI", "Noto Sans SC", "微软雅黑", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

button {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

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

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.site-main {
  display: block;
}

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

/* ---- 页头 ---- */

.site-header {
  position: relative;
  background-color: var(--navy);
  color: var(--sheet);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--sheet);
  text-decoration: none;
}

.brand:hover,
.brand:focus-visible {
  text-decoration: none;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border: 1px solid var(--amber);
  border-radius: var(--radius);
  background-color: rgba(168, 105, 28, 0.18);
  flex-shrink: 0;
}

.brand-text {
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
}

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 20px;
}

.site-nav a {
  display: inline-block;
  padding: 6px 0;
  color: #dfe3e6;
  font-size: 14px;
  line-height: 1.5;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--sheet);
  text-decoration: none;
  border-bottom-color: rgba(168, 105, 28, 0.6);
}

.site-nav a.is-current {
  color: var(--sheet);
  border-bottom-color: var(--amber);
}

.index-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(255, 253, 248, 0.4);
  border-radius: var(--radius);
  background-color: transparent;
  color: var(--sheet);
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  flex-shrink: 0;
}

.index-toggle:hover,
.index-toggle:focus-visible {
  border-color: var(--amber);
  color: var(--sheet);
}

.quick-index-panel {
  border-top: 1px solid rgba(255, 253, 248, 0.16);
  background-color: #101a22;
}

.quick-index-panel[hidden] {
  display: none;
}

.quick-index-inner {
  padding-top: 18px;
  padding-bottom: 22px;
}

.quick-index-title {
  margin-bottom: 10px;
  color: #9fb0bb;
  font-size: 12px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.quick-index-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px 24px;
}

.quick-index-list a {
  display: block;
  padding: 8px 0;
  color: #dfe3e6;
  font-size: 14px;
  border-bottom: 1px solid rgba(255, 253, 248, 0.12);
}

.quick-index-list a:hover,
.quick-index-list a:focus-visible {
  color: var(--sheet);
  text-decoration: none;
  border-bottom-color: var(--amber);
}

/* ---- 面包屑 ---- */

.breadcrumb {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.breadcrumb-inner,
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.breadcrumb a {
  color: var(--ink-soft);
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--amber);
}

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

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

/* ---- 页面标题区（全站统一） ---- */

.page-head {
  border-bottom: 1px solid var(--rule);
  background-color: var(--sheet);
}

.page-head-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px 32px;
  padding-top: 26px;
  padding-bottom: 26px;
}

.page-head-copy,
.page-head-text {
  flex: 1 1 520px;
  min-width: 0;
}

.page-head-lead,
.page-head-desc,
.page-desc,
.page-lead,
.page-lede {
  margin-top: 10px;
  max-width: 72ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-status,
.page-head-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding-top: 4px;
}

.page-date {
  color: var(--ink-soft);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

/* ---- 页面 H1 区（全站统一字号与行高） ---- */

.page-header {
  padding-top: 30px;
  padding-bottom: 6px;
}

.page-title {
  margin: 0;
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

.site-brand-heading {
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

/* ---- 页面横幅图 ---- */

.page-banner {
  margin-top: 18px;
}

.page-banner img {
  width: 100%;
  aspect-ratio: 1180 / 320;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

/* ---- 主列 / 侧栏 ---- */

.page-layout,
.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
  padding-top: 34px;
}

.main-col {
  min-width: 0;
}

.side-index,
.side-rail {
  position: sticky;
  top: 20px;
  min-width: 0;
}

.side-block {
  padding: 16px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.side-block + .side-block {
  margin-top: 16px;
}

.side-title {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.04em;
}

.side-anchors,
.side-links,
.side-list {
  display: grid;
  gap: 8px;
}

.side-anchors a,
.side-links a,
.side-list a {
  display: block;
  padding: 4px 0;
  color: var(--amber);
  font-size: 14px;
  line-height: 1.6;
}

.side-note {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}

/* ---- 状态标签 ---- */

.status-tag {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  color: var(--green);
  background-color: var(--sheet);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  line-height: 1.6;
}

/* ---- 页脚 ---- */

.site-footer {
  margin-top: 56px;
  background-color: var(--navy);
  color: #dfe3e6;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.6fr);
  gap: 32px 48px;
  padding-top: 40px;
  padding-bottom: 30px;
}

.footer-about {
  min-width: 0;
}

.footer-brand {
  margin-bottom: 10px;
  color: var(--sheet);
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.footer-summary {
  max-width: 46ch;
  color: #b6c2ca;
  font-size: 14px;
  line-height: 1.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  min-width: 0;
}

.footer-col {
  min-width: 0;
}

.footer-col-title {
  margin-bottom: 10px;
  color: var(--sheet);
  font-size: 13px;
  font-weight: 700;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.04em;
}

.footer-col ul {
  display: grid;
  gap: 6px;
}

.footer-col a {
  color: #b6c2ca;
  font-size: 14px;
  line-height: 1.7;
}

.footer-col a:hover,
.footer-col a:focus-visible {
  color: var(--sheet);
}

.footer-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 253, 248, 0.16);
}

.footer-note,
.footer-copy {
  color: #8fa0ab;
  font-size: 13px;
  line-height: 1.7;
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 253, 248, 0.3);
  border-radius: var(--radius);
  color: var(--sheet);
  flex-shrink: 0;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  border-color: var(--amber);
  text-decoration: none;
}

.back-to-top span::before {
  content: "↑";
  font-size: 16px;
  line-height: 1;
}

/* ---- 通用区块标题与链接 ---- */

.section-head,
.block-head {
  margin-bottom: 22px;
  max-width: 76ch;
}

.section-head h2,
.block-head h2 {
  font-size: 22px;
  line-height: 1.45;
}

.section-lead,
.section-intro,
.section-lede,
.block-lead {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.section-foot-link {
  margin-top: 20px;
}

.text-link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(168, 105, 28, 0.45);
  color: var(--amber);
  font-size: 15px;
}

.text-link:hover,
.text-link:focus-visible {
  border-bottom-color: var(--amber);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.4;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--navy);
  border-color: var(--navy);
  color: var(--sheet);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #24323f;
  border-color: #24323f;
}

.btn-ghost {
  background-color: transparent;
  border-color: var(--rule);
  color: var(--ink);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
}

/* ---- 通用相关内容条 ---- */

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.related-links-label {
  color: var(--ink-soft);
  font-size: 13px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

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

/* ---- 通用内容图 ---- */

.content-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.content-media-inline {
  margin-top: 26px;
}

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

/* ---- 编号目录行 ---- */

.index-rows {
  display: grid;
  gap: 0;
}

.index-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) minmax(0, 0.9fr);
  align-items: baseline;
  gap: 6px 14px;
  padding: 11px 0;
  border-top: 1px solid var(--rule);
}

.index-row:last-child {
  border-bottom: 1px solid var(--rule);
}

.index-num {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.index-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
}

.index-scope {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}

/* ---- 编号服务行 ---- */

.service-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
}

.service-row:last-child {
  border-bottom: 1px solid var(--rule);
}

.service-row-num {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
  line-height: 1.9;
}

.service-row-body {
  min-width: 0;
}

.service-row-name {
  font-size: 18px;
  line-height: 1.5;
}

.service-row-input,
.service-row-output {
  margin-top: 8px;
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

/* ---- 摘要行 ---- */

.summary-rows {
  border-top: 1px solid var(--rule);
}

.summary-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 8px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.summary-key {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.8;
}

.summary-text {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* ---- FAQ 折叠条目 ---- */

.faq-list {
  border-top: 1px solid var(--rule);
}

.faq-item {
  border-bottom: 1px solid var(--rule);
}

.faq-question,
.faq-item > summary {
  position: relative;
  padding: 14px 34px 14px 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "思源宋体", "Songti SC", "SimSun", serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after,
.faq-item > summary::after {
  content: "+";
  position: absolute;
  top: 14px;
  right: 4px;
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 17px;
  line-height: 1.5;
}

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

.faq-answer,
.faq-body {
  padding: 0 0 16px;
}

.faq-answer p,
.faq-body p {
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.faq-body .status-tag {
  margin-top: 10px;
}

/* ---- 边界清单 ---- */

.boundaries-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 24px 48px;
  align-items: start;
}

.boundaries-col {
  min-width: 0;
}

.boundaries-col h2 {
  font-size: 22px;
  line-height: 1.45;
}

.boundary-list {
  margin-top: 16px;
  border-top: 1px solid var(--rule);
}

.boundary-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.75;
}

.boundaries-note {
  padding: 16px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

/* ---- 阶段步骤条 ---- */

.stage-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.stage-step {
  padding: 16px 16px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.stage-num {
  display: inline-block;
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.stage-step .stage-name {
  margin-top: 6px;
  font-size: 17px;
  line-height: 1.5;
}

.stage-prep,
.stage-owner,
.stage-check {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}

.stage-owner {
  color: var(--green);
}

/* ---- 情境条目 ---- */

.banner-figure {
  margin-bottom: 22px;
}

.banner-figure img {
  width: 100%;
  aspect-ratio: 1180 / 300;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.situation-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.situation-item {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.situation-name {
  font-size: 17px;
  line-height: 1.5;
}

.situation-bg,
.situation-focus,
.situation-line {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.situation-line {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

/* ---- 对接准备要点 ---- */

.onboarding-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.onboarding-point {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.point-name {
  font-size: 17px;
  line-height: 1.5;
}

.point-text {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

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

/* ---- 首页 ---- */

.hero {
  padding-top: 44px;
  padding-bottom: 46px;
  background-color: var(--sheet);
  border-bottom: 1px solid var(--rule);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px 48px;
  align-items: start;
}

.hero-copy {
  min-width: 0;
}

.hero-eyebrow {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.hero-copy h1 {
  margin-top: 12px;
  font-size: 40px;
  line-height: 1.3;
}

.hero-lead {
  margin-top: 14px;
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-figure {
  min-width: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--paper);
}

.hero-index {
  margin-top: 20px;
}

.hero-index-title {
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.service-lines,
.situations,
.cadence-strip,
.handover-preview,
.faq-preview,
.boundaries,
.onboarding-cta {
  padding-top: 46px;
  padding-bottom: 46px;
  border-bottom: 1px solid var(--rule);
}

.situations,
.faq-preview {
  background-color: var(--sheet);
}

.service-row-list {
  border-bottom: 1px solid var(--rule);
}

.faq-preview .faq-list {
  max-width: 900px;
}

/* ---- 服务线与产出 ---- */

.service-line {
  padding: 22px 0;
  border-top: 1px solid var(--rule);
}

.service-line:last-child {
  border-bottom: 1px solid var(--rule);
}

.service-line h3 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 20px;
  line-height: 1.5;
}

.line-no {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
}

.line-summary {
  margin-top: 10px;
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.line-block {
  margin-top: 18px;
  min-width: 0;
}

.line-block h4 {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.line-block ul {
  margin-top: 8px;
  display: grid;
  gap: 6px;
}

.line-block li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.line-block li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 2px;
  width: 6px;
  height: 1px;
  background-color: var(--amber);
}

.line-combos,
.line-conditions {
  margin-top: 40px;
}

.combo-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.combo-item {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.combo-item h3 {
  font-size: 17px;
  line-height: 1.5;
}

.combo-fit,
.combo-lines {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.combo-lines {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.condition-list {
  border-top: 1px solid var(--rule);
}

.condition-item {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 2fr);
  gap: 6px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.condition-item h3 {
  font-size: 16px;
  line-height: 1.6;
}

.condition-item p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

/* ---- 议题整理规范 ---- */

.norms-block {
  padding-top: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--rule);
}

.norms-block:first-of-type {
  padding-top: 34px;
}

.rule-list {
  border-top: 1px solid var(--rule);
}

.rule-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 8px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.rule-label {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.8;
}

.rule-body {
  min-width: 0;
}

.rule-body p {
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.rule-example {
  margin-top: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.75;
}

.naming-list {
  border-top: 1px solid var(--rule);
}

.naming-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 8px 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.naming-seg {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.8;
}

.naming-body {
  min-width: 0;
}

.naming-body p {
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.naming-sample {
  margin-top: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.75;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.archive-card {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.archive-level {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.archive-card h3 {
  margin-top: 8px;
  font-size: 17px;
  line-height: 1.5;
}

.archive-card p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.verdict-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.verdict-card {
  padding: 18px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.verdict-pass {
  border-left-color: var(--green);
}

.verdict-pending {
  border-left-color: var(--amber);
}

.verdict-drop {
  border-left-color: var(--ink-soft);
}

.verdict-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  line-height: 1.5;
}

.verdict-card p {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.verdict-action {
  color: var(--ink);
}

.norms-related .related-links {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

/* ---- 协同节奏 ---- */

.stage-line {
  margin-top: 30px;
}

.stage-marker {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.stage-marker-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.stage-marker-item .stage-num {
  flex-shrink: 0;
}

.stage-marker-item .stage-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.stage-detail {
  margin-top: 40px;
}

.stage-block {
  padding: 22px 0;
  border-top: 1px solid var(--rule);
}

.stage-block:last-child {
  border-bottom: 1px solid var(--rule);
}

.stage-block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}

.stage-block-head h3 {
  font-size: 20px;
  line-height: 1.5;
}

.stage-block-head .stage-owner {
  margin: 0;
  color: var(--green);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.stage-goal {
  margin-top: 10px;
  max-width: 76ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.stage-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 40px;
  margin-top: 18px;
}

.stage-col {
  min-width: 0;
}

.stage-col h4 {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.stage-col ul {
  margin-top: 8px;
  display: grid;
  gap: 6px;
}

.stage-col li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.stage-col li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 2px;
  width: 6px;
  height: 1px;
  background-color: var(--amber);
}

.blockers {
  margin-top: 40px;
}

.blocker-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.blocker-item {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.blocker-item h3 {
  font-size: 17px;
  line-height: 1.5;
}

.blocker-item p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.handover-link {
  margin-top: 40px;
  padding: 22px 24px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.handover-link h2 {
  font-size: 20px;
  line-height: 1.5;
}

.handover-link p {
  margin-top: 10px;
  max-width: 72ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.section-cta {
  margin-top: 14px;
}

.section-cta a {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(168, 105, 28, 0.45);
  color: var(--amber);
  font-size: 15px;
}

.section-cta a:hover,
.section-cta a:focus-visible {
  border-bottom-color: var(--amber);
  text-decoration: none;
}

/* ---- 交付与确认 ---- */

.dimension-table {
  margin-top: 30px;
}

.dimension-row {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 10px 28px;
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}

.dimension-row:last-of-type {
  border-bottom: 1px solid var(--rule);
}

.dimension-name {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.9;
}

.dimension-body {
  min-width: 0;
}

.dimension-body ul {
  display: grid;
  gap: 8px;
}

.dimension-body li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.dimension-body li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 2px;
  width: 6px;
  height: 1px;
  background-color: var(--amber);
}

.confirmation-record,
.exclusions,
.next-link {
  margin-top: 40px;
}

.confirmation-record h2,
.exclusions h2,
.next-link h2 {
  font-size: 22px;
  line-height: 1.45;
}

.record-list {
  margin-top: 16px;
  border-top: 1px solid var(--rule);
}

.record-list li {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 8px 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.record-name {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  line-height: 1.8;
}

.record-list li > p:last-child {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.exclusion-list {
  margin-top: 16px;
  border-top: 1px solid var(--rule);
}

.exclusion-list li {
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.exclusion-list strong {
  color: var(--ink);
  font-weight: 700;
}

.exclusion-note {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

.next-link-action {
  margin-top: 14px;
}

.next-link-action a {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(168, 105, 28, 0.45);
  color: var(--amber);
  font-size: 15px;
}

.next-link-action a:hover,
.next-link-action a:focus-visible {
  border-bottom-color: var(--amber);
  text-decoration: none;
}

/* ---- 答疑条目 ---- */

.faq-group {
  margin-top: 30px;
}

.faq-group:first-of-type {
  margin-top: 24px;
}

.faq-group h2 {
  font-size: 22px;
  line-height: 1.45;
}

.faq-group .faq-item {
  margin-top: 0;
}

.faq-group .faq-item:first-of-type {
  border-top: 1px solid var(--rule);
}

.faq-uncovered {
  margin-top: 40px;
  padding: 20px 22px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.faq-uncovered h2 {
  font-size: 20px;
  line-height: 1.5;
}

.faq-uncovered p {
  margin-top: 10px;
  max-width: 72ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.faq-uncovered .text-link {
  margin-top: 12px;
}

/* ---- 对接准备 ---- */

.material-list,
.communication-order,
.judgement,
.related {
  padding-top: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--rule);
}

.material-rows {
  border-top: 1px solid var(--rule);
}

.material-row {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 10px 32px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}

.material-row-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.row-index {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.material-row-label h3 {
  font-size: 17px;
  line-height: 1.5;
}

.material-row-body {
  min-width: 0;
}

.material-row-body p {
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.material-row-note {
  margin-top: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--rule);
  color: var(--ink);
  font-size: 14px;
}

.order-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.order-step {
  padding: 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.step-no {
  display: inline-block;
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.order-step h3 {
  margin-top: 6px;
  font-size: 17px;
  line-height: 1.5;
}

.order-step p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.judgement-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 40px;
}

.judgement-col {
  padding: 20px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
  min-width: 0;
}

.judgement-col-go {
  border-left-color: var(--green);
}

.judgement-col-hold {
  border-left-color: var(--amber);
}

.judgement-col h3 {
  font-size: 17px;
  line-height: 1.5;
}

.judgement-col ul {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.judgement-col li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.judgement-col li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 2px;
  width: 6px;
  height: 1px;
  background-color: var(--amber);
}

.related .related-links {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.related-links li {
  display: contents;
}

/* ---- 404 ---- */

.error-main {
  padding-bottom: 56px;
}

.error-inner {
  padding-top: 34px;
}

.error-panel {
  margin-top: 22px;
  padding: 28px 26px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
}

.error-code {
  color: var(--amber);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
  letter-spacing: 0.08em;
}

.error-panel h1 {
  margin-top: 10px;
  font-size: 30px;
  line-height: 1.35;
}

.error-text {
  margin-top: 12px;
  max-width: 68ch;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 18px;
  padding: 0 20px;
  border: 1px solid var(--navy);
  border-radius: var(--radius);
  background-color: var(--navy);
  color: var(--sheet);
  font-size: 15px;
}

.error-home-link:hover,
.error-home-link:focus-visible {
  background-color: #24323f;
  border-color: #24323f;
  text-decoration: none;
}

.error-index {
  margin-top: 34px;
}

.error-index h2 {
  font-size: 22px;
  line-height: 1.45;
}

.error-index-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.error-index-list a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--sheet);
  color: var(--ink);
  font-size: 15px;
}

.error-index-list a:hover,
.error-index-list a:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
  text-decoration: none;
}

/* ---- 悬停增强 ---- */

.service-row,
.situation-item,
.onboarding-point,
.archive-card,
.verdict-card,
.blocker-item,
.combo-item,
.order-step,
.faq-item {
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.situation-item:hover,
.onboarding-point:hover,
.archive-card:hover,
.verdict-card:hover,
.blocker-item:hover,
.combo-item:hover,
.order-step:hover {
  border-color: #c3b9a4;
}

.hero-media img,
.banner-figure img,
.page-banner img,
.content-media img {
  transition: transform 0.22s ease;
}

.hero-media:hover img,
.banner-figure:hover img,
.page-banner:hover img,
.content-media:hover img {
  transform: translateY(-2px);
}

/* ---- 区块标题淡入（不依赖 JS 显示正文） ---- */

@media (prefers-reduced-motion: no-preference) {
  .section-head h2,
  .block-head h2,
  .faq-group h2 {
    animation: fade-in 0.5s ease both;
  }
}

@keyframes fade-in {
  from {
    opacity: 0.2;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@media (max-width: 1080px) {
  .page-layout,
  .layout-shell {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 32px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .hero-copy h1 {
    font-size: 34px;
  }

  .stage-strip,
  .order-steps,
  .error-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .situation-list,
  .onboarding-points,
  .combo-list,
  .archive-grid,
  .verdict-grid,
  .blocker-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  :root {
    --gutter: 16px;
  }

  body {
    font-size: 15px;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 10px 14px;
    padding-top: 10px;
    padding-bottom: 10px;
    min-height: 0;
  }

  .brand-text {
    font-size: 16px;
  }

  .site-nav {
    order: 3;
    flex: 1 1 100%;
  }

  .site-nav ul {
    flex-wrap: nowrap;
    gap: 0 18px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav a {
    white-space: nowrap;
    font-size: 14px;
  }

  .index-toggle {
    margin-left: auto;
  }

  .quick-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-head-inner {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .page-title,
  .site-brand-heading {
    font-size: 26px;
    line-height: 1.32;
  }

  .page-header {
    padding-top: 22px;
  }

  .hero {
    padding-top: 30px;
    padding-bottom: 32px;
  }

  .hero-copy h1 {
    font-size: 26px;
    line-height: 1.32;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    flex: 1 1 auto;
    min-width: 140px;
  }

  .service-lines,
  .situations,
  .cadence-strip,
  .handover-preview,
  .faq-preview,
  .boundaries,
  .onboarding-cta,
  .norms-block,
  .material-list,
  .communication-order,
  .judgement,
  .related {
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .section-head h2,
  .block-head h2,
  .faq-group h2,
  .confirmation-record h2,
  .exclusions h2,
  .next-link h2 {
    font-size: 19px;
    line-height: 1.5;
  }

  .index-row {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .index-scope {
    grid-column: 2 / -1;
  }

  .service-row {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 16px 0;
  }

  .summary-row,
  .condition-item,
  .rule-row,
  .naming-row,
  .record-list li,
  .material-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .stage-strip,
  .order-steps,
  .situation-list,
  .onboarding-points,
  .combo-list,
  .archive-grid,
  .verdict-grid,
  .blocker-list,
  .stage-marker,
  .error-index-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .stage-marker {
    gap: 8px;
  }

  .stage-columns,
  .judgement-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .boundaries-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .dimension-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding: 18px 0;
  }

  .dimension-name {
    padding-bottom: 8px;
    border-bottom: 1px solid var(--rule);
  }

  .page-layout,
  .layout-shell {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-top: 24px;
  }

  .side-index,
  .side-rail {
    position: static;
  }

  .footer-inner {
    gap: 24px;
    padding-top: 30px;
    padding-bottom: 24px;
  }

  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .error-panel h1 {
    font-size: 24px;
    line-height: 1.35;
  }

  .related-links {
    gap: 8px 16px;
  }
}

@media (max-width: 420px) {
  .quick-index-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .btn {
    flex: 1 1 100%;
  }
}