/* ==========================================================================
   hftuyi.com 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. base —— 变量、重置、排版基础
   -------------------------------------------------------------------------- */

:root {
  --paper: #FCFBF7;
  --ink: #1F2A24;
  --ink-soft: #4A5A50;
  --ink-faint: #6D7A71;
  --moss: #3F6B4A;
  --moss-dark: #2F5238;
  --clay: #C2703B;
  --sand: #C9B48A;
  --sand-soft: #EFE7D6;
  --mist: #6E8C90;
  --mist-soft: #E2EAEA;
  --line: #DFD9CB;
  --line-strong: #C4BCA9;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-hover: 0 2px 10px rgba(31, 42, 36, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1080px;
  --reading: 720px;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.6em;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 15px;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding: 0;
  list-style: none;
}

dl,
dd {
  margin: 0;
}

dt {
  font-weight: 700;
}

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

a:hover,
a:focus-visible {
  color: var(--clay);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 2px;
}

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

figure {
  margin: 0;
}

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

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

th,
td {
  text-align: left;
  vertical-align: top;
}

button {
  font: inherit;
  color: inherit;
}

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

/* 分类标签：等宽小字，同一颜色全站含义一致 */
.tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  border-radius: var(--radius-sm);
  background-color: var(--sand-soft);
  color: var(--ink-soft);
}

.tag-capability {
  background-color: #E3EDE5;
  color: var(--moss-dark);
}

.tag-scene {
  background-color: #F6E6DA;
  color: #8E4E22;
}

.tag-method {
  background-color: var(--mist-soft);
  color: #3E5A5E;
}

.tag-quality {
  background-color: #EDE7D8;
  color: #6B5A2E;
}

.tag-field {
  background-color: #E9E4F0;
  color: #4E4468;
}

/* --------------------------------------------------------------------------
   2. layout —— 页头、导航、主容器、面包屑、页脚骨架
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--paper);
  border-bottom: 1px solid var(--line);
}

.brand-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
}

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

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

.brand-slogan {
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 10px;
  background-color: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
}

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

.primary-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
}

.nav-item {
  position: relative;
}

.nav-item > a {
  display: block;
  padding: 8px 12px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

.nav-item > a:hover,
.nav-item > a:focus-visible {
  color: var(--moss-dark);
  text-decoration: none;
}

.nav-item.is-current > a {
  color: var(--moss-dark);
  font-weight: 700;
  border-bottom-color: var(--clay);
}

.nav-sub {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 168px;
  margin: 0;
  padding: 6px 0;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease;
}

.nav-item.has-sub:hover .nav-sub,
.nav-item.has-sub:focus-within .nav-sub {
  opacity: 1;
  visibility: visible;
}

.nav-sub a {
  display: block;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
}

.nav-sub a:hover,
.nav-sub a:focus-visible {
  background-color: var(--sand-soft);
  color: var(--ink);
  text-decoration: none;
}

.site-main {
  display: block;
}

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 24px 56px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--ink-faint);
}

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

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

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

.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  margin-bottom: 12px;
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
}

.page-description,
.page-lead,
.page-lede,
.page-task {
  max-width: var(--reading);
  margin-bottom: 16px;
  color: var(--ink-soft);
}

.page-tags,
.page-tags ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

/* 页脚 */
.site-footer {
  background-color: #F5F2EA;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 24px;
}

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

.footer-title {
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.footer-desc,
.footer-scope-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 6px 16px;
  margin: 0;
}

.footer-links a {
  display: block;
  padding: 3px 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px 22px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  margin: 0;
  font-size: 12px;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   3. components —— 通用模块：section、卡片、表格、折叠问答、入口列表
   -------------------------------------------------------------------------- */

.section {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.section:first-of-type {
  border-top: none;
}

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

.section-head h2,
.section-title,
.section-intro + h2 {
  margin-bottom: 10px;
}

.section-desc,
.section-intro,
.section-note {
  max-width: var(--reading);
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section-more {
  display: inline-block;
  margin-top: 24px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--moss-dark);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  text-decoration: none;
}

.section-more:hover,
.section-more:focus-visible {
  background-color: var(--sand-soft);
  color: var(--ink);
  text-decoration: none;
}

/* 折叠问答 */
.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.faq-item:hover {
  border-color: var(--line-strong);
}

.faq-question {
  position: relative;
  padding: 14px 44px 14px 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 20px;
  font-weight: 400;
  color: var(--moss);
  line-height: 1.4;
}

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

.faq-answer {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 15px;
  color: var(--ink-soft);
}

.faq-answer p {
  margin-bottom: 10px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-link {
  font-size: 14px;
}

/* 数据表 */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper);
}

.data-table,
.semantic-table,
.field-table,
.index-table {
  min-width: 620px;
  font-size: 15px;
}

.table-caption,
.field-caption {
  padding: 12px 16px;
  font-size: 13px;
  text-align: left;
  color: var(--ink-faint);
  caption-side: top;
}

.data-table th,
.data-table td,
.semantic-table th,
.semantic-table td,
.field-table th,
.field-table td,
.index-table th,
.index-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.data-table thead th,
.semantic-table thead th,
.field-table thead th,
.index-table thead th {
  background-color: var(--sand-soft);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.data-table tbody th,
.semantic-table tbody th,
.field-table tbody th,
.index-table tbody th {
  font-weight: 700;
  color: var(--ink);
  background-color: #FAF8F2;
}

.data-table tbody tr:hover,
.semantic-table tbody tr:hover,
.field-table tbody tr:hover,
.index-table tbody tr:hover {
  background-color: #F7F4EC;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td,
.semantic-table tbody tr:last-child th,
.semantic-table tbody tr:last-child td,
.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td,
.index-table tbody tr:last-child th,
.index-table tbody tr:last-child td {
  border-bottom: none;
}

/* 相关页面入口 */
.related-list,
.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 0;
}

.related-item a,
.related-links a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

.related-item a:hover,
.related-item a:focus-visible,
.related-links a:hover,
.related-links a:focus-visible {
  border-color: var(--moss);
  box-shadow: var(--shadow-hover);
  color: var(--moss-dark);
  text-decoration: none;
}

.related-section,
.related-entry {
  padding-top: 40px;
  margin-top: 40px;
  border-top: 1px solid var(--line);
}

.related-entry h2,
.related-section h2 {
  margin-bottom: 16px;
  font-size: 22px;
}

.related-desc {
  max-width: var(--reading);
  margin-bottom: 20px;
  color: var(--ink-soft);
}

/* 侧栏通用 */
.side-block {
  padding: 20px;
  margin-bottom: 20px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.side-title {
  margin-bottom: 12px;
  font-size: 16px;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   4. pages —— 各页面专属模块
   -------------------------------------------------------------------------- */

/* ---- 首页 ---- */

.home-main {
  display: block;
}

.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px 48px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: start;
}

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

.hero-eyebrow {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

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

.hero-lead {
  max-width: 34em;
  margin-bottom: 12px;
  font-size: 17px;
  color: var(--ink-soft);
}

.hero-note {
  max-width: 34em;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--ink-faint);
}

.scene-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.scene-button {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 44px;
  padding: 14px 16px;
  background-color: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  text-decoration: none;
}

.scene-button:hover,
.scene-button:focus-visible {
  border-color: var(--clay);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
}

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

.scene-button-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-faint);
}

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

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

/* 场景判断速览 */
.scene-overview {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

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

.overview-row {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.overview-name {
  margin-bottom: 10px;
  font-size: 17px;
}

.overview-fields {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px 24px;
}

.overview-field {
  min-width: 0;
}

.overview-field dt {
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--ink-faint);
}

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

/* 任务分组面板 */
.task-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

.task-panel-reverse .task-panel-text {
  order: 2;
}

.task-panel-reverse .task-panel-figure {
  order: 1;
}

.task-panel-text {
  min-width: 0;
}

.task-panel-text h2 {
  margin-bottom: 12px;
}

.task-panel-text > p {
  max-width: 34em;
  color: var(--ink-soft);
}

.task-list {
  margin: 16px 0 20px;
  border-top: 1px solid var(--line);
}

.task-list li {
  position: relative;
  padding: 9px 0 9px 20px;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.task-list li::before {
  content: "";
  position: absolute;
  top: 19px;
  left: 4px;
  width: 6px;
  height: 6px;
  background-color: var(--moss);
  border-radius: 50%;
}

.task-link {
  display: inline-block;
  padding: 9px 18px;
  font-size: 14px;
  color: var(--moss-dark);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  text-decoration: none;
}

.task-link:hover,
.task-link:focus-visible {
  background-color: var(--sand-soft);
  color: var(--ink);
  text-decoration: none;
}

.task-panel-figure {
  min-width: 0;
}

.task-panel-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

/* 服务推进节点 */
.milestone-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

.milestone-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-left: 2px solid var(--sand);
}

.milestone-item {
  position: relative;
  padding: 0 0 26px 24px;
}

.milestone-item:last-child {
  padding-bottom: 0;
}

.milestone-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -7px;
  width: 12px;
  height: 12px;
  background-color: var(--paper);
  border: 2px solid var(--moss);
  border-radius: 50%;
}

.milestone-name {
  margin-bottom: 6px;
  font-size: 17px;
}

.milestone-actions {
  margin-bottom: 4px;
  font-size: 15px;
  color: var(--ink-soft);
}

.milestone-output {
  margin: 0;
  font-size: 13px;
  color: var(--ink-faint);
}

/* 质量与团队并列块 */
.dual-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

.dual-title {
  margin-bottom: 24px;
}

.dual-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.dual-column {
  min-width: 0;
  padding: 24px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.dual-column-title {
  margin-bottom: 8px;
  font-size: 18px;
}

.dual-column-desc {
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--ink-soft);
}

.check-list {
  margin: 0 0 18px;
  border-top: 1px solid var(--line);
}

.check-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.check-name {
  flex: 0 0 auto;
  min-width: 6em;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}

.check-desc {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.dual-link {
  display: inline-block;
  font-size: 14px;
  color: var(--moss-dark);
  border-bottom: 1px solid var(--line-strong);
  text-decoration: none;
}

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

/* 专题解读精选 */
.topic-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

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

.topic-item {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.topic-item:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.topic-figure {
  margin-bottom: 14px;
}

.topic-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--sand-soft);
}

.topic-name {
  margin-bottom: 8px;
  font-size: 17px;
}

.topic-judgement {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.topic-condition {
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--ink-faint);
}

.topic-link {
  margin-top: auto;
  font-size: 14px;
  color: var(--moss-dark);
  text-decoration: none;
}

.topic-link:hover,
.topic-link:focus-visible {
  color: var(--clay);
  text-decoration: underline;
}

/* 常见问题预览 */
.faq-preview {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

/* 接洽前准备清单 */
.prepare-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

.prepare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.prepare-item {
  min-width: 0;
  padding: 18px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.prepare-name {
  margin-bottom: 6px;
  font-size: 16px;
}

.prepare-desc {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.prepare-entry {
  margin: 24px 0 0;
  font-size: 15px;
  color: var(--ink-soft);
}

.prepare-entry a {
  margin-right: 6px;
}

/* ---- 服务场景 ---- */

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

.section-scenes,
.section-scene-map,
.section-out-of-scope,
.section-related {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.section-scenes {
  border-top: none;
  padding-top: 8px;
}

.section-scenes h2,
.section-scene-map h2,
.section-out-of-scope h2,
.section-related h2 {
  margin-bottom: 10px;
}

.section-intro {
  max-width: var(--reading);
  margin-bottom: 24px;
  color: var(--ink-soft);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.scene-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.scene-figure {
  margin: 0;
}

.scene-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--sand-soft);
}

.scene-figure-caption {
  padding: 8px 16px 0;
  margin: 0;
}

.scene-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 16px;
}

.scene-body .tag {
  align-self: flex-start;
  margin-bottom: 8px;
}

.scene-name {
  margin-bottom: 10px;
  font-size: 17px;
}

.scene-fields {
  margin-bottom: 12px;
  border-top: 1px solid var(--line);
}

.scene-fields div {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.scene-fields dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--ink-faint);
}

.scene-fields dd {
  font-size: 14px;
  color: var(--ink-soft);
}

.scene-link {
  margin: auto 0 0;
  font-size: 14px;
}

.scene-map-table {
  min-width: 560px;
}

.scope-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.scope-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.scope-name {
  margin-bottom: 6px;
  font-size: 16px;
}

.scope-desc {
  margin: 0;
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

/* ---- 核心能力 ---- */

.page-capabilities .page-hero {
  max-width: var(--reading);
  margin-bottom: 32px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
  gap: 40px;
  align-items: start;
}

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

.side-column {
  min-width: 0;
}

.capability-list {
  margin-bottom: 40px;
}

.capability-list h2 {
  margin-bottom: 10px;
}

.capability-figure {
  margin: 0 0 28px;
}

.capability-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

.capability-block {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

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

.capability-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.capability-head h3 {
  margin: 0;
  font-size: 18px;
}

.capability-fields {
  border-top: 1px solid var(--line);
}

.capability-fields dt {
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--ink-faint);
}

.capability-fields dd {
  padding-bottom: 10px;
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.capability-fields dd:last-child {
  border-bottom: none;
}

.combo-section,
.boundary-section {
  padding-top: 32px;
  margin-top: 8px;
  border-top: 1px solid var(--line);
}

.combo-section h2,
.boundary-section h2 {
  margin-bottom: 10px;
}

.combo-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 0;
}

.combo-item {
  min-width: 0;
  padding: 18px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.combo-item h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.combo-fit {
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.combo-includes {
  margin: 0;
  font-size: 13px;
  color: var(--ink-faint);
}

.boundary-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.boundary-list li {
  padding: 12px 0 12px 20px;
  position: relative;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.boundary-list li::before {
  content: "";
  position: absolute;
  top: 21px;
  left: 4px;
  width: 6px;
  height: 6px;
  background-color: var(--clay);
  border-radius: 50%;
}

.material-list {
  margin: 0;
}

.material-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

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

.material-name {
  display: block;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}

.material-use {
  display: block;
  font-size: 13px;
  color: var(--ink-faint);
}

.side-column .faq-item {
  background-color: var(--paper);
}

.side-column .faq-question {
  padding: 12px 36px 12px 14px;
  font-size: 14px;
}

.side-column .faq-answer {
  padding: 0 14px 14px;
  font-size: 14px;
}

/* ---- 研判方法 ---- */

.page-method .page-hero {
  max-width: var(--reading);
  margin-bottom: 32px;
}

.page-eyebrow {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.method-steps,
.method-fields,
.method-review {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.method-steps {
  border-top: none;
  padding-top: 8px;
}

.section-title {
  margin-bottom: 10px;
}

.step-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  counter-reset: none;
}

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

.step-index {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--sand);
  line-height: 1.4;
}

.step-name {
  margin: 0 0 6px;
  font-size: 17px;
}

.step-body {
  grid-column: 2;
  margin: 0;
  max-width: var(--reading);
  font-size: 15px;
  color: var(--ink-soft);
}

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

.field-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

.field-table {
  min-width: 720px;
}

/* 数值与单位相邻 */
.field-table td {
  font-variant-numeric: tabular-nums;
}

.review-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0;
}

.review-item {
  min-width: 0;
  padding: 18px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.review-name {
  margin-bottom: 6px;
  font-size: 16px;
}

.review-body {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---- 质量体系 ---- */

.page-quality .page-hero {
  max-width: var(--reading);
  margin-bottom: 28px;
}

.page-kicker {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.quality-figure {
  margin: 0 0 32px;
}

.quality-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

.gate-section,
.path-section,
.record-section {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.gate-section {
  border-top: none;
  padding-top: 8px;
}

.gate-list {
  display: grid;
  gap: 20px;
  margin: 0;
}

.gate-item {
  padding: 20px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.gate-item:hover {
  border-color: var(--line-strong);
}

.gate-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.gate-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.gate-name {
  margin: 0;
  font-size: 17px;
}

.gate-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
}

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

.gate-sub {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--ink-faint);
}

.gate-col-fail .gate-sub {
  color: #8E4E22;
}

.gate-col p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

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

.path-table {
  min-width: 640px;
}

.record-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0;
}

.record-item {
  min-width: 0;
  padding: 18px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.record-name {
  margin-bottom: 8px;
  font-size: 16px;
}

.record-keep,
.record-review {
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.record-review {
  margin-bottom: 0;
  color: var(--ink-faint);
}

/* ---- 团队分工 ---- */

.page-team .page-hero {
  max-width: var(--reading);
  margin-bottom: 32px;
}

.roles-section,
.handover-section,
.client-section {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.roles-section {
  border-top: none;
  padding-top: 8px;
}

.roles-section h2,
.handover-section h2,
.client-section h2 {
  margin-bottom: 10px;
}

.role-figure {
  margin: 0 0 28px;
}

.role-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

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

.role-card {
  min-width: 0;
  padding: 20px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.role-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-hover);
}

.role-name {
  margin-bottom: 12px;
  padding-bottom: 10px;
  font-size: 17px;
  border-bottom: 1px solid var(--line);
}

.role-duties {
  margin: 0 0 14px;
}

.role-duties li {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: 14px;
  color: var(--ink-soft);
}

.role-duties li::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 2px;
  width: 5px;
  height: 5px;
  background-color: var(--moss);
  border-radius: 50%;
}

.role-handover {
  margin: 0;
  padding-top: 10px;
  font-size: 13px;
  color: var(--ink-faint);
  border-top: 1px dashed var(--line-strong);
}

.handover-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.handover-item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 0 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.handover-order {
  grid-row: 1 / span 4;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--sand);
}

.handover-name {
  margin: 0 0 6px;
  font-size: 16px;
}

.handover-detail,
.handover-artifact,
.handover-confirm {
  grid-column: 2;
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--ink-soft);
}

.handover-artifact {
  color: var(--ink);
}

.handover-confirm {
  margin-bottom: 0;
  color: var(--ink-faint);
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.client-card {
  min-width: 0;
  padding: 18px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.client-name {
  margin-bottom: 8px;
  font-size: 16px;
}

.client-detail {
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.client-timing {
  margin: 0;
  font-size: 13px;
  color: var(--ink-faint);
}

/* ---- 专题解读 ---- */

.page-topics .page-hero {
  max-width: var(--reading);
  margin-bottom: 32px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

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

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

.topic-list-section,
.topic-index-section,
.topic-scope-section {
  padding: 36px 0;
  border-top: 1px solid var(--line);
}

.topic-list-section {
  border-top: none;
  padding-top: 8px;
}

.topic-list-section h2,
.topic-index-section h2,
.topic-scope-section h2 {
  margin-bottom: 8px;
}

.section-note {
  margin-bottom: 24px;
  color: var(--ink-soft);
}

.topic-entry {
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.topic-entry:last-child {
  padding-bottom: 0;
}

.topic-media {
  margin: 0;
  min-width: 0;
}

.topic-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

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

.topic-index {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.topic-body .topic-name {
  margin-bottom: 12px;
}

.topic-fields {
  margin-bottom: 12px;
  border-top: 1px solid var(--line);
}

.topic-fields dt {
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--ink-faint);
}

.topic-fields dd {
  padding-bottom: 8px;
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.topic-fields dd:last-child {
  border-bottom: none;
}

.topic-links {
  margin: 0;
  font-size: 14px;
}

.index-table {
  min-width: 560px;
}

.scope-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

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

.scope-heading {
  margin-bottom: 10px;
  font-size: 16px;
}

.scope-col .scope-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.scope-col .scope-list li {
  padding: 8px 0 8px 18px;
  position: relative;
  font-size: 14px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.scope-col .scope-list li::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 2px;
  width: 5px;
  height: 5px;
  background-color: var(--mist);
  border-radius: 50%;
}

.judge-list {
  margin: 0;
}

.judge-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

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

.side-note p {
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--ink-soft);
}

.side-note p:last-child {
  margin-bottom: 0;
}

/* ---- 常见问题 ---- */

.page-faq .page-hero {
  margin-bottom: 28px;
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: 32px;
  align-items: center;
}

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

.page-hero-lead {
  margin-bottom: 14px;
  color: var(--ink-soft);
}

.page-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-hero-media {
  margin: 0;
  min-width: 0;
}

.page-hero-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--sand-soft);
}

.media-caption {
  margin-top: 8px;
}

.faq-cat-nav {
  margin-bottom: 32px;
  padding: 16px;
  background-color: #F8F5EE;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.faq-cat-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin: 0;
}

.faq-cat-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.faq-cat-item a:hover,
.faq-cat-item a:focus-visible {
  border-color: var(--moss);
  color: var(--moss-dark);
  text-decoration: none;
}

.cat-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
}

.faq-group {
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.faq-group:first-of-type {
  border-top: none;
  padding-top: 0;
}

.faq-group-head {
  margin-bottom: 18px;
}

.faq-group-head h2 {
  margin-bottom: 8px;
  font-size: 22px;
}

.faq-group-desc {
  margin: 0;
  max-width: var(--reading);
  color: var(--ink-soft);
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52vh;
  padding: 56px 24px;
}

.error-inner {
  max-width: 640px;
  width: 100%;
}

.error-code {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.error-title {
  margin-bottom: 12px;
  font-size: 30px;
}

.error-desc {
  margin-bottom: 24px;
  color: var(--ink-soft);
}

.error-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 0;
}

.error-links a {
  display: block;
  min-height: 44px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--ink);
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

.error-links a:hover,
.error-links a:focus-visible {
  border-color: var(--moss);
  color: var(--moss-dark);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   5. responsive —— 断点 1080 / 820 / 560
   -------------------------------------------------------------------------- */

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

  .hero h1 {
    font-size: 30px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 2fr) minmax(220px, 1fr);
    gap: 32px;
  }

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

@media (max-width: 820px) {
  .brand-band {
    padding: 12px 20px;
  }

  /* 移动导航：按钮显示，列表默认收起，仅 .is-open 展开 */
  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    flex: 1 0 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    margin: 8px 0 0;
    padding: 6px 0;
    border-top: 1px solid var(--line);
  }

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

  .nav-item > a {
    min-height: 44px;
    padding: 12px 4px;
    border-bottom: 1px solid var(--line);
  }

  .nav-item.is-current > a {
    border-bottom-color: var(--line);
  }

  .nav-sub {
    position: static;
    opacity: 1;
    visibility: visible;
    min-width: 0;
    padding: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
  }

  .nav-sub a {
    min-height: 44px;
    padding: 12px 4px 12px 24px;
    border-bottom: 1px solid var(--line);
  }

  .inner-main {
    padding: 20px 20px 44px;
  }

  .hero {
    padding: 40px 20px 36px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-figure {
    order: 2;
  }

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

  .scene-overview,
  .task-panel,
  .milestone-section,
  .dual-section,
  .topic-section,
  .faq-preview,
  .prepare-section {
    padding: 36px 20px;
  }

  .task-panel {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .task-panel-reverse .task-panel-text {
    order: 1;
  }

  .task-panel-reverse .task-panel-figure {
    order: 2;
  }

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

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

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

  .overview-field {
    display: grid;
    grid-template-columns: 6.5em minmax(0, 1fr);
    gap: 4px 12px;
  }

  .overview-field dt {
    margin-bottom: 0;
  }

  /* 内页：主内容在前，侧栏在后 */
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .side-column,
  .layout-side {
    order: 2;
  }

  .main-column,
  .layout-main {
    order: 1;
  }

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

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

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

  .gate-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

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

  .topic-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .page-title {
    font-size: 28px;
  }

  .page-header {
    margin-bottom: 26px;
    padding-bottom: 20px;
  }

  .section {
    padding: 36px 0;
  }

  .footer-inner {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 26px 32px;
    padding: 32px 20px 20px;
  }

  .footer-bottom {
    padding: 12px 20px 20px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .brand-band {
    padding: 10px 16px;
  }

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

  .inner-main {
    padding: 16px 16px 40px;
  }

  .hero {
    padding: 32px 16px 28px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .hero-lead {
    font-size: 16px;
  }

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

  h2 {
    font-size: 20px;
  }

  .scene-overview,
  .task-panel,
  .milestone-section,
  .dual-section,
  .topic-section,
  .faq-preview,
  .prepare-section {
    padding: 32px 16px;
  }

  .page-scenes .container {
    padding: 0 16px;
  }

  .section-scenes,
  .section-scene-map,
  .section-out-of-scope,
  .section-related {
    padding: 32px 0;
  }

  .method-steps,
  .method-fields,
  .method-review,
  .gate-section,
  .path-section,
  .record-section,
  .roles-section,
  .handover-section,
  .client-section,
  .topic-list-section,
  .topic-index-section,
  .topic-scope-section {
    padding: 32px 0;
  }

  .related-section,
  .related-entry {
    padding-top: 32px;
    margin-top: 32px;
  }

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

  .handover-item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 0 12px;
  }

  .faq-cat-nav {
    padding: 12px;
  }

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

  .faq-question {
    padding: 12px 40px 12px 14px;
    font-size: 15px;
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 28px 16px 18px;
  }

  .footer-bottom {
    padding: 12px 16px 18px;
  }

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

/* 减少动态偏好：仅保留必要的悬停反馈，不做位移动画 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}