/* ==========================================================================
   星空传媒 peterkcl.com — 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --paper: #F7F2E8;
  --paper-deep: #EFE7D8;
  --ink: #102A43;
  --ink-soft: #2E2A26;
  --accent: #C8552F;
  --accent-soft: #E4A184;
  --teal: #2F6F6B;
  --line: #D8CFBF;
  --line-strong: #B9AC96;
  --white: #FFFDF8;
  --shell: 1180px;
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 8px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.35;
}

p {
  margin: 0;
}

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

a {
  color: var(--teal);
  text-decoration: none;
  transition: color .18s ease;
}

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

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

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius-sm);
  transition: top .18s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--white);
}

.mono {
  font-family: var(--mono);
  letter-spacing: .02em;
}

/* --------------------------------------------------------------------------
   layout — 骨架
   -------------------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 32px;
}

.site-main {
  display: block;
}

.inner-main {
  padding-bottom: 64px;
}

/* 页头 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 72px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand-mark {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 0 0 auto;
  color: var(--ink);
  line-height: 1.2;
}

.brand-mark:hover {
  color: var(--ink);
}

.brand-name {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 700;
}

.brand-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: .04em;
}

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 2px;
}

.nav-link {
  display: block;
  padding: 8px 10px;
  color: var(--ink);
  font-size: 15px;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--accent);
  background: var(--paper-deep);
}

.nav-link.is-current {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.tool-link {
  font-size: 14px;
  color: var(--ink);
  padding: 8px 2px;
  border-bottom: 1px dashed var(--line-strong);
}

.tool-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
}

.mobile-nav:not([hidden]) {
  display: block;
}

.mobile-nav-list {
  padding: 8px 20px 16px;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 8px;
  color: var(--ink);
  font-size: 16px;
  border-bottom: 1px solid var(--line);
}

.mobile-nav-list li:last-child a {
  border-bottom: 0;
}

.mobile-nav-list a:hover {
  color: var(--accent);
}

/* 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #A8421F;
  border-color: #A8421F;
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

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

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.btn-lg {
  min-height: 50px;
  padding: 13px 26px;
  font-size: 16px;
}

.text-link {
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px solid var(--accent-soft);
}

.text-link:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

/* 阅读进度条 */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.reading-progress::after {
  content: "";
  display: block;
  height: 100%;
  width: 100%;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(var(--progress, 0));
}

.reading-progress-bar {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
}

/* 面包屑 */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 26px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

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

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

.breadcrumb-sep {
  color: var(--line-strong);
  font-family: var(--mono);
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

/* 页面标题区 */

.page-header {
  padding: 14px 0 0;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

/* 页脚 */

.site-footer {
  margin-top: 64px;
  background: var(--ink);
  color: #DCE3EA;
  font-size: 15px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
  gap: 40px 36px;
  padding-top: 56px;
  padding-bottom: 40px;
}

.footer-title {
  margin-bottom: 14px;
  color: var(--white);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
}

.footer-brand {
  margin-bottom: 10px;
  color: var(--white);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
}

.footer-text {
  color: #C4D0DA;
  line-height: 1.8;
}

.footer-list li {
  padding: 5px 0;
  color: #C4D0DA;
  line-height: 1.7;
}

.footer-boundary .footer-list li {
  position: relative;
  padding-left: 16px;
}

.footer-boundary .footer-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--accent-soft);
  border-radius: 1px;
}

.footer-nav-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
}

.footer-nav-list a {
  color: #C4D0DA;
}

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

.footer-contact .btn-outline {
  margin-top: 16px;
  color: var(--white);
  border-color: #6C7F8F;
}

.footer-contact .btn-outline:hover {
  border-color: var(--accent-soft);
  color: var(--accent-soft);
}

.footer-bottom {
  padding-top: 18px;
  padding-bottom: 26px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.copyright {
  font-size: 13px;
  color: #9FB0BE;
}

/* --------------------------------------------------------------------------
   components — 通用组件
   -------------------------------------------------------------------------- */

/* 章节标题组 */

.section-head {
  margin-bottom: 22px;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 700;
  color: var(--ink);
}

.section-lead,
.section-lede,
.section-desc {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

.section-no,
.section-num,
.section-index,
.section-eyebrow {
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent);
  text-transform: uppercase;
}

/* 表格 */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.data-table {
  min-width: 560px;
  font-size: 14px;
}

.table-caption {
  caption-side: top;
  padding: 12px 16px;
  text-align: left;
  font-size: 13px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.data-table thead th {
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background: #FBF7EE;
}

.data-table-compact th,
.data-table-compact td {
  padding: 10px 14px;
}

.cell-mono {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--teal);
}

/* 图片容器 */

.media-figure,
.content-figure,
.block-media,
.section-media,
.aside-media,
.faq-intro-figure {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-deep);
}

.media-figure img,
.content-figure img,
.block-media img,
.section-media img,
.aside-media img,
.faq-intro-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-figure figcaption,
.content-figure figcaption,
.block-media figcaption,
.section-media figcaption,
.aside-media figcaption,
.faq-intro-figure figcaption,
.figure-caption,
.media-caption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  background: var(--white);
}

/* 侧栏块 */

.aside-block {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.aside-block + .aside-block {
  margin-top: 18px;
}

.aside-title {
  margin-bottom: 10px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--ink);
}

.aside-text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.aside-list li,
.aside-links li,
.aside-nav li,
.anchor-list li {
  border-bottom: 1px dashed var(--line);
}

.aside-list li:last-child,
.aside-links li:last-child,
.aside-nav li:last-child,
.anchor-list li:last-child {
  border-bottom: 0;
}

.aside-list a,
.aside-links a,
.aside-nav a,
.anchor-list a {
  display: block;
  padding: 8px 0;
  font-size: 14.5px;
  color: var(--teal);
  line-height: 1.6;
}

.aside-list a:hover,
.aside-links a:hover,
.aside-nav a:hover,
.anchor-list a:hover {
  color: var(--accent);
}

.aside-note {
  margin-top: 18px;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  background: var(--paper-deep);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.aside-note .aside-title {
  margin-bottom: 8px;
}

.aside-note p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.aside-note .btn {
  margin-top: 14px;
}

.aside-cta {
  border-color: var(--line-strong);
}

/* 页内目录 */

.toc-title {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--accent);
}

.toc-list a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--teal);
  line-height: 1.6;
}

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

/* 相关链接条 */

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 40px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.related-links-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent);
}

.related-links-item {
  font-size: 15px;
  color: var(--teal);
  border-bottom: 1px solid var(--line-strong);
}

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

/* 通用列表块 */

.boundary-list,
.limit-list,
.rule-list,
.policy-list,
.progress-list,
.scope-list {
  display: grid;
  gap: 14px;
}

.boundary-item,
.limit-item,
.rule-item,
.policy-item,
.progress-item,
.scope-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.boundary-title,
.limit-title,
.rule-title,
.policy-item h3,
.progress-item h3,
.scope-item h3 {
  margin-bottom: 6px;
  font-family: var(--sans);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.boundary-text,
.limit-text,
.rule-item p,
.policy-item p,
.progress-item p,
.scope-item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages — 首页
   -------------------------------------------------------------------------- */

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

/* 封面首屏 */

.cover-hero {
  padding: 44px 0 40px;
  border-bottom: 1px solid var(--line);
}

.cover-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 44px;
  align-items: center;
}

.cover-kicker {
  margin-bottom: 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
}

.cover-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.cover-lead {
  margin-top: 18px;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.cover-index {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.cover-index-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cover-index-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--teal);
}

.cover-index-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.cover-media {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-deep);
}

.cover-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.cover-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  background: var(--white);
}

/* 服务专题目录条 */

.topic-index {
  padding: 40px 0;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--line);
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.topic-item {
  background: var(--white);
}

.topic-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 18px 16px;
  color: var(--ink);
}

.topic-link:hover {
  background: var(--paper);
  color: var(--accent);
}

.topic-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.topic-name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
}

.topic-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* 双轨主体 */

.dual-track {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 44px;
  align-items: start;
  padding-top: 48px;
  padding-bottom: 24px;
}

.track-aside {
  position: sticky;
  top: 92px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.track-aside .aside-block + .aside-block {
  margin-top: 0;
}

.track-aside .aside-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.track-aside .aside-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.track-aside .aside-media figcaption {
  padding: 8px 12px;
  font-size: 12.5px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  background: var(--white);
}

.track-main {
  display: flex;
  flex-direction: column;
  gap: 44px;
  min-width: 0;
}

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

/* 服务模块条目 */

.service-entry {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color .18s ease;
}

.service-entry + .service-entry {
  margin-top: 14px;
}

.service-entry:hover {
  border-color: var(--line-strong);
}

.entry-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.entry-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

.entry-fields {
  margin: 14px 0 0;
}

.field-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 8px 0;
  border-top: 1px dashed var(--line);
}

.field-row dt {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--teal);
  line-height: 1.8;
}

.field-row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.section-more {
  margin-top: 16px;
  font-size: 15px;
}

/* 首页流程轨道 */

.stage-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.stage-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--white);
}

.stage-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.stage-name {
  margin: 6px 0 10px;
  font-family: var(--sans);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.stage-field {
  padding: 6px 0;
  border-top: 1px dashed var(--line);
}

.stage-label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--teal);
}

.stage-item .stage-field p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 首页问题分类 */

.issue-list {
  display: grid;
  gap: 12px;
}

.issue-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

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

.issue-field {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.issue-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  white-space: nowrap;
}

/* 合作接洽清单 */

.cta-section {
  padding: 26px 26px 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.check-list {
  display: grid;
  gap: 10px;
}

.check-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.check-item:first-child {
  border-top: 0;
}

.check-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  line-height: 1.9;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* --------------------------------------------------------------------------
   pages — 内页通用标题区
   -------------------------------------------------------------------------- */

.page-hero {
  padding: 20px 0 32px;
  border-bottom: 1px solid var(--line);
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.page-hero-main,
.page-hero-text {
  min-width: 0;
}

.page-hero-lead,
.page-lead,
.page-lede {
  margin-top: 10px;
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-kicker {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent);
}

.page-hero-side,
.page-hero-meta {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.page-hero-note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-hero-side .btn {
  margin-top: 14px;
}

.side-label,
.meta-label {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--accent);
}

.page-toc-list a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--teal);
  border-bottom: 1px dashed var(--line);
}

.page-toc-list li:last-child a {
  border-bottom: 0;
}

.page-toc-list a:hover {
  color: var(--accent);
}

/* 内页布局 */

.page-layout {
  display: grid;
  gap: 44px;
  align-items: start;
  padding-top: 36px;
}

.layout-with-aside,
.layout-main-aside {
  grid-template-columns: minmax(0, 1fr) 280px;
}

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

.layout-aside {
  position: sticky;
  top: 92px;
  min-width: 0;
}

/* 左侧栏布局：aside 在 DOM 中先出现 */

.page-layout.sidebar-left {
  grid-template-columns: 260px minmax(0, 1fr);
}

.page-aside {
  position: sticky;
  top: 92px;
  min-width: 0;
}

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

.page-content .breadcrumb {
  padding-top: 0;
}

.page-content .page-header {
  padding-top: 8px;
}

/* 内容区块 */

.content-block {
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.content-block:first-child,
.layout-main > .content-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.block-head {
  margin-bottom: 20px;
}

.block-lead {
  margin-top: 8px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.block-note {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages — 服务矩阵
   -------------------------------------------------------------------------- */

.module-index {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.module-index-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--white);
}

.module-index-no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  line-height: 1.8;
}

.module-index-body {
  min-width: 0;
}

.module-index-name {
  display: block;
  margin-bottom: 4px;
  font-family: var(--serif);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--ink);
}

.module-index-for,
.module-index-out {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.module-index-out {
  margin-top: 4px;
  color: var(--teal);
}

.block-media {
  margin-bottom: 20px;
}

.block-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.module-detail {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.detail-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.detail-label {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--teal);
  line-height: 1.75;
}

.detail-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.boundary-list .boundary-item {
  border-left: 3px solid var(--line-strong);
}

/* --------------------------------------------------------------------------
   pages — 合作流程
   -------------------------------------------------------------------------- */

.section {
  padding-top: 40px;
}

.section > .section-head {
  margin-bottom: 22px;
}

.stage-track-item {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--white);
}

.stage-track-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.stage-track-name {
  margin: 6px 0 8px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.stage-track-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.stage-track-point {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--teal);
}

.media-figure-wide {
  margin-top: 24px;
}

.media-figure-wide img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.stage-detail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.stage-block {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.stage-block-title {
  margin-bottom: 8px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.stage-block p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.rule-item {
  border-left: 3px solid var(--accent);
}

.section-related .related-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.related-card {
  min-width: 0;
}

.related-card a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  transition: border-color .18s ease, background .18s ease;
}

.related-card a:hover {
  border-color: var(--accent);
  background: var(--paper);
  color: var(--accent);
}

.related-card-kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.related-card-title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
}

.related-card-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages — 交付资料
   -------------------------------------------------------------------------- */

.field-summary {
  padding: 36px 0 8px;
}

.field-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.field-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.field-key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--accent);
}

.field-value {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.layout-shell {
  padding-top: 8px;
}

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

.content-aside {
  position: sticky;
  top: 92px;
  min-width: 0;
}

.content-aside .aside-block + .aside-block {
  margin-top: 18px;
}

.limit-item {
  border-left: 3px solid var(--teal);
}

.content-figure {
  margin-bottom: 20px;
}

.content-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.confirm-steps {
  display: grid;
  gap: 12px;
}

.confirm-step {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.confirm-step-title {
  margin-bottom: 4px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.confirm-step-text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages — 服务支持
   -------------------------------------------------------------------------- */

.aside-support .aside-title {
  color: var(--ink);
}

.aside-support .aside-nav a {
  padding: 9px 0;
}

.aside-support .aside-note p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-content .content-section {
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.page-content .content-section:first-of-type {
  padding-top: 26px;
}

.process-list {
  display: grid;
  gap: 12px;
}

.process-step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 6px 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.process-no {
  grid-row: span 2;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--accent);
  line-height: 1.6;
}

.process-step h3 {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.process-step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.policy-item {
  border-left: 3px solid var(--line-strong);
}

.related-list {
  display: grid;
  gap: 10px;
}

.related-item a {
  display: block;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}

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

.related-name {
  display: block;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
}

.related-desc {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages — 常见问题
   -------------------------------------------------------------------------- */

.faq-shell {
  padding-top: 36px;
}

.faq-intro {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.faq-intro-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.faq-intro-text p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.faq-group {
  padding-top: 36px;
}

.faq-group-head {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 4px 14px;
  margin-bottom: 16px;
}

.group-index {
  grid-row: span 2;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  line-height: 1.7;
}

.group-lead {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  overflow: hidden;
}

.faq-item[open] {
  border-color: var(--line-strong);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 14px 18px;
  font-family: var(--sans);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--accent);
}

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

.faq-question:hover {
  color: var(--accent);
  background: var(--paper);
}

.faq-answer {
  padding: 0 18px 16px;
  border-top: 1px dashed var(--line);
}

.faq-answer p {
  padding-top: 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.faq-boundary .boundary-item {
  border-left: 3px solid var(--accent);
}

.faq-related {
  padding-top: 36px;
}

.faq-related .related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.related-label {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   pages — 合作接洽
   -------------------------------------------------------------------------- */

.page-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
  padding: 20px 0 32px;
  border-bottom: 1px solid var(--line);
}

.page-head-main {
  min-width: 0;
}

.page-head-side {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.side-caption {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--accent);
}

.page-cooperation .page-layout {
  padding-top: 34px;
}

.section-media {
  margin-bottom: 20px;
}

.section-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.checklist {
  display: grid;
  gap: 10px;
}

.checklist-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.checklist-num {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  line-height: 1.7;
}

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

.checklist-title {
  margin-bottom: 4px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.checklist-text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.structure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.structure-block {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.structure-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.structure-title {
  margin-bottom: 6px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.structure-text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.step-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.step-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--white);
}

.step-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.step-title {
  margin: 6px 0 8px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

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

.fit-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.fit-col {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.fit-col-yes {
  border-top: 3px solid var(--teal);
}

.fit-col-no {
  border-top: 3px solid var(--accent);
}

.fit-col-title {
  margin-bottom: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.fit-list li {
  position: relative;
  padding: 7px 0 7px 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  border-top: 1px dashed var(--line);
}

.fit-list li:first-child {
  border-top: 0;
}

.fit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 1px;
}

.fit-col-no .fit-list li::before {
  background: var(--accent);
}

.boundary-term {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.boundary-desc {
  margin: 4px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.section-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.section-note a {
  margin-right: 8px;
  color: var(--teal);
  border-bottom: 1px solid var(--line-strong);
}

.section-note a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-cooperation .layout-aside .aside-block + .aside-block {
  margin-top: 18px;
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */

.error-main {
  padding: 72px 0 40px;
}

.error-shell {
  max-width: 760px;
  text-align: left;
}

.error-code {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--accent);
}

.error-title {
  margin: 12px 0 14px;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: var(--ink);
}

.error-text {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

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

.error-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.error-links-title {
  margin-bottom: 12px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--ink);
}

.error-list {
  display: grid;
  gap: 10px;
}

.error-list a {
  display: block;
  padding: 13px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  font-size: 15px;
}

.error-list a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .shell {
    padding: 0 24px;
  }

  .header-inner {
    gap: 16px;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
  }

  .site-nav {
    order: 4;
    flex-basis: 100%;
  }

  .nav-list {
    display: none;
  }

  .nav-list.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 12px;
    border-top: 1px solid var(--line);
  }

  .nav-list.is-open .nav-link {
    min-height: 44px;
    padding: 11px 8px;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
  }

  .nav-list.is-open .nav-link.is-current {
    border-bottom-color: var(--line);
    border-left-color: var(--accent);
  }

  .header-tools {
    margin-left: auto;
    order: 2;
  }

  .tool-link {
    display: none;
  }

  .cover-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    gap: 32px;
  }

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

  .dual-track {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .track-aside {
    position: static;
  }

  .stage-track,
  .step-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-hero-inner,
  .page-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .layout-with-aside,
  .layout-main-aside {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .layout-aside,
  .content-aside {
    position: static;
  }

  .page-layout.sidebar-left {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-aside {
    position: static;
    order: 2;
  }

  .page-layout.sidebar-left .page-content {
    order: 1;
  }

  .field-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-related .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 28px;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .shell {
    padding: 0 20px;
  }

  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
  }

  .brand-name {
    font-size: 19px;
  }

  .cover-hero {
    padding: 28px 0 28px;
  }

  .cover-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .cover-title {
    font-size: clamp(1.9rem, 7vw, 2.4rem);
  }

  .cover-index {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .cover-index-item {
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--line);
  }

  .cover-index-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .topic-index {
    padding: 30px 0;
  }

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

  .dual-track {
    padding-top: 32px;
    padding-bottom: 16px;
  }

  .track-main {
    gap: 32px;
  }

  .service-entry {
    padding: 16px 18px;
  }

  .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .stage-track,
  .step-track {
    grid-template-columns: minmax(0, 1fr);
  }

  .issue-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .issue-label {
    white-space: normal;
  }

  .cta-section {
    padding: 20px 18px 22px;
  }

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

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

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

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

  .faq-group-head {
    grid-template-columns: 44px minmax(0, 1fr);
  }

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

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

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

  .media-figure-wide img {
    aspect-ratio: 16 / 10;
  }

  .error-main {
    padding: 48px 0 32px;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-top: 40px;
  }

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

@media (max-width: 560px) {
  body {
    font-size: 15.5px;
  }

  .shell {
    padding: 0 16px;
  }

  .header-tools .btn {
    padding: 9px 14px;
    font-size: 14px;
  }

  .cover-actions .btn,
  .cta-actions .btn,
  .error-actions .btn {
    flex: 1 1 100%;
  }

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

  .btn-lg {
    min-height: 46px;
    padding: 11px 20px;
    font-size: 15px;
  }

  .process-step {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 4px 12px;
  }

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

  .faq-question {
    padding: 13px 14px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 14px 14px;
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px;
  }

  .boundary-item,
  .limit-item,
  .rule-item,
  .policy-item,
  .progress-item,
  .scope-item {
    padding: 14px 16px;
  }

  .stage-block,
  .structure-block,
  .fit-col,
  .confirm-step,
  .related-item a,
  .error-list a {
    padding: 14px 16px;
  }

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

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}