:root {
  --paper: #f7f4ee;
  --paper-alt: #efe9dd;
  --ink: #1b1d1a;
  --pine: #2f5d50;
  --rust: #c4622d;
  --stone: #6e726b;
  --line: #e4ded2;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1180px;
  --gutter: 16px;
  --radius: 3px;
}

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

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

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

body.site-body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  color: var(--ink);
  font-weight: 600;
  line-height: 1.35;
  margin: 0;
}

p {
  margin: 0;
}

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

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

a {
  color: var(--pine);
  text-decoration: none;
  transition: color 0.16s ease;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 3px;
}

figure {
  margin: 0;
}

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

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

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

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--ink);
  padding: 14px 0;
  min-height: 44px;
}

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

.brand-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.2;
}

.brand-slogan {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.2;
  border-left: 1px solid var(--line);
  padding-left: 12px;
}

.primary-nav {
  display: flex;
  align-items: center;
}

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

.nav-list > li {
  display: flex;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--pine);
}

.nav-link.is-current {
  color: var(--rust);
  border-bottom-color: var(--rust);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--ink);
}

.site-main {
  display: block;
}

.inner-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) 72px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--stone);
  padding: 20px 0 0;
  line-height: 1.6;
}

.breadcrumb a {
  color: var(--stone);
  text-decoration: underline;
  text-underline-offset: 3px;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
}

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

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

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

.page-header {
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.page-title {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  margin: 0;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(0, 320px);
  gap: 56px;
  align-items: start;
}

.content-main,
.page-primary,
.page-main-col {
  min-width: 0;
}

.content-aside,
.page-aside {
  min-width: 0;
  font-size: 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background-color: var(--paper-alt);
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px var(--gutter) 32px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.footer-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--pine);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.footer-list {
  display: grid;
  gap: 8px;
}

.footer-list a {
  color: var(--ink);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: transparent;
  transition: color 0.16s ease, text-decoration-color 0.16s ease;
}

.footer-list a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

.footer-bottom {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px var(--gutter) 28px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  font-size: 13px;
  color: var(--stone);
}

.footer-brand {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink);
  font-weight: 600;
}

.footer-tagline {
  color: var(--stone);
}

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

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  min-height: 32px;
  transition: color 0.16s ease;
}

.text-link::after {
  content: "→";
  font-size: 13px;
  transition: transform 0.16s ease;
}

.text-link:hover {
  color: var(--rust);
}

.text-link:hover::after {
  transform: translateX(3px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  font-family: var(--sans);
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn-primary {
  background-color: var(--pine);
  color: #f7f4ee;
  border-color: var(--pine);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #24473d;
  border-color: #24473d;
  color: #f7f4ee;
}

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

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

.section-head {
  margin-bottom: 24px;
  max-width: 760px;
}

.section-head h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.section-head p {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.8;
}

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

.section-intro {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.section-lead {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.aside-block {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-bottom: 28px;
}

.aside-title {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--pine);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.aside-intro {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.75;
  margin-bottom: 12px;
}

.aside-list {
  display: grid;
  gap: 2px;
}

.aside-list li {
  display: flex;
}

.aside-list a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 0.16s ease, text-decoration-color 0.16s ease;
  line-height: 1.5;
  padding: 2px 0;
}

.aside-list a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

.aside-note {
  background-color: var(--paper-alt);
  border-left: 2px solid var(--pine);
  border-top: 0;
  padding: 16px 18px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.aside-note h3,
.aside-note h2 {
  font-size: 14px;
  color: var(--pine);
  margin-bottom: 8px;
}

.aside-note p {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.75;
  margin-bottom: 10px;
}

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

.media-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-alt);
}

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

.media-caption {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background-color: var(--paper);
}

.page-figure {
  margin: 0 0 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-alt);
}

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

.page-figure figcaption {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background-color: var(--paper);
}

/* ==========================================================================
   pages: 首页
   ========================================================================== */

.home-main {
  display: block;
}

.hero {
  border-bottom: 1px solid var(--line);
  padding: 56px 0 64px;
}

.hero-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 56px;
  align-items: start;
}

.hero-copy {
  min-width: 0;
  padding-top: 8px;
}

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 18px;
  font-weight: 600;
}

.hero-copy h1 {
  font-size: 40px;
  line-height: 1.25;
  margin-bottom: 20px;
  max-width: 520px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 480px;
  margin-bottom: 28px;
}

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

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

.hero-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-alt);
}

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

.hero-figure figcaption {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background-color: var(--paper);
}

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

.hero-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.6;
}

.fact-label {
  color: var(--stone);
  flex-shrink: 0;
}

.fact-value {
  color: var(--ink);
  text-align: right;
  font-weight: 500;
}

.positioning {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.section-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.positioning .section-inner {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 56px;
  align-items: start;
}

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

.positioning-text h2 {
  font-size: 24px;
  margin-bottom: 18px;
}

.positioning-text p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 16px;
  max-width: 620px;
}

.positioning-text p:last-child {
  margin-bottom: 0;
}

.capability-list {
  min-width: 0;
  border-top: 1px solid var(--pine);
}

.capability-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
  align-items: baseline;
}

.capability-item .item-index {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rust);
  font-weight: 600;
}

.capability-item h3 {
  font-size: 17px;
  margin: 0;
}

.capability-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.75;
  margin: 0;
}

.business-map {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.map-column {
  min-width: 0;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--paper);
  display: flex;
  flex-direction: column;
}

.map-column h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--pine);
}

.map-column > p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin-bottom: 16px;
}

.map-list {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  flex-grow: 1;
}

.map-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.map-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background-color: var(--rust);
}

.map-column .text-link {
  align-self: flex-start;
}

.judgment {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.judgment-inner {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(0, 320px);
  gap: 56px;
  align-items: start;
}

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

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

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

.judgment-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
  line-height: 1.5;
}

.judgment-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin-bottom: 8px;
}

.judgment-aside {
  min-width: 0;
  font-size: 14px;
}

.process-strip {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  border-top: 2px solid var(--pine);
  padding-top: 24px;
}

.step-item {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.step-item .step-index {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--rust);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  font-weight: 600;
}

.step-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.step-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin-bottom: 12px;
  flex-grow: 1;
}

.step-item .step-output {
  display: block;
  font-size: 13px;
  color: var(--pine);
  border-top: 1px solid var(--line);
  padding-top: 10px;
  line-height: 1.6;
}

.materials {
  padding: 64px 0;
}

.materials-inner {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 56px;
  align-items: start;
}

.materials-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-alt);
}

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

.materials-figure figcaption {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background-color: var(--paper);
}

.materials-copy {
  min-width: 0;
  padding-top: 4px;
}

.materials-copy h2 {
  font-size: 24px;
  margin-bottom: 18px;
}

.materials-copy p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 16px;
  max-width: 620px;
}

/* ==========================================================================
   pages: 内页通用标题区
   ========================================================================== */

.page-title {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.inner-main > .page-title {
  padding: 20px var(--gutter) 0;
}

.page-kicker {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 760px;
  margin-bottom: 12px;
}

.page-meta {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-meta span {
  display: inline-flex;
  align-items: center;
}

.page-meta span + span::before {
  content: "";
  display: inline-block;
  width: 1px;
  height: 12px;
  background-color: var(--line);
  margin-right: 14px;
}

.page-title-block {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) 0;
}

.content-shell {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-title-area {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.page-title-area .page-lead {
  margin-bottom: 10px;
}

/* ==========================================================================
   pages: 品牌概览
   ========================================================================== */

.section {
  margin-bottom: 40px;
}

.section > .section-title {
  font-size: 24px;
  margin-bottom: 12px;
}

.section > .section-intro {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.section-positioning p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 16px;
  max-width: 720px;
}

.section-positioning p:last-child {
  margin-bottom: 0;
}

.section-criteria {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

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

.criteria-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.criteria-item .criteria-num {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rust);
  font-weight: 600;
}

.criteria-name {
  font-size: 17px;
  margin: 0;
  line-height: 1.5;
}

.criteria-desc {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

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

.boundary-block {
  background-color: var(--paper-alt);
  border-left: 2px solid var(--pine);
  padding: 20px 22px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 18px;
}

.boundary-list {
  display: grid;
  gap: 14px;
}

.boundary-item {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
  padding-left: 16px;
  position: relative;
}

.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background-color: var(--rust);
}

.boundary-desc {
  color: var(--stone);
}

.section-boundary > p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.section-boundary > p a {
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.section-wording {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.section-wording p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 14px;
  max-width: 720px;
}

.section-wording p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   pages: 服务矩阵
   ========================================================================== */

.skip-link {
  position: absolute;
  left: 8px;
  top: 8px;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  background-color: var(--pine);
  color: #f7f4ee;
  font-size: 14px;
  border-radius: var(--radius);
  white-space: nowrap;
  transform: translateY(-200%);
  transition: transform 0.16s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  color: #f7f4ee;
  outline: 2px solid var(--rust);
  outline-offset: 2px;
}

.page-layout.sidebar-left {
  grid-template-columns: minmax(0, 240px) minmax(0, 760px);
  gap: 56px;
}

.sidebar-left .page-aside {
  min-width: 0;
}

.sidebar-left .page-main {
  min-width: 0;
}

.index-list {
  display: grid;
  gap: 2px;
}

.index-item {
  display: flex;
}

.index-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-height: 40px;
  padding: 4px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 0.16s ease, text-decoration-color 0.16s ease;
}

.index-item a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

.index-count {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--stone);
  letter-spacing: 0.04em;
}

.section-block {
  margin-bottom: 40px;
}

.section-block > h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.section-block > .section-lead {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.service-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(0, 240px);
  column-gap: 20px;
  row-gap: 8px;
  padding: 20px 0 20px 16px;
  border-top: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.16s ease, background-color 0.16s ease;
  align-items: start;
}

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

.service-item:hover {
  border-left-color: var(--pine);
  background-color: rgba(47, 93, 80, 0.03);
}

.service-num-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.service-num {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--stone);
  line-height: 1.1;
  transition: color 0.16s ease;
}

.service-item:hover .service-num {
  color: var(--rust);
}

.service-cat {
  font-size: 12px;
  color: var(--stone);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

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

.service-name {
  font-size: 18px;
  margin-bottom: 8px;
  line-height: 1.4;
}

.service-purpose {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.8;
  margin: 0;
}

.service-cond-col {
  min-width: 0;
  border-left: 1px solid var(--line);
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-cond,
.service-output {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  margin: 0;
}

.service-cond::before {
  content: "适用：";
  color: var(--pine);
  font-weight: 600;
}

.service-output::before {
  content: "交付：";
  color: var(--pine);
  font-weight: 600;
}

.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.deliverable-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  background-color: var(--paper);
  display: flex;
  flex-direction: column;
}

.deliverable-name {
  font-size: 16px;
  color: var(--pine);
  margin-bottom: 10px;
  line-height: 1.4;
}

.deliverable-form {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
  margin-bottom: 12px;
  flex-grow: 1;
}

.deliverable-confirm {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.deliverable-confirm::before {
  content: "确认：";
  color: var(--pine);
  font-weight: 600;
}

.combo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.combo-block {
  min-width: 0;
  border-top: 2px solid var(--pine);
  padding-top: 14px;
}

.combo-name {
  font-size: 16px;
  margin-bottom: 8px;
  line-height: 1.4;
}

.combo-stage {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  margin-bottom: 12px;
}

.combo-stage::before {
  content: "适用阶段：";
  color: var(--pine);
  font-weight: 600;
}

.combo-items {
  display: grid;
  gap: 4px;
}

.combo-items li {
  font-size: 14px;
  line-height: 1.7;
}

.combo-items a {
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

.combo-items a:hover {
  color: var(--rust);
}

.cond-label {
  color: var(--pine);
  font-weight: 600;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 8px;
  font-size: 14px;
}

.related-links-label {
  font-size: 13px;
  color: var(--stone);
  letter-spacing: 0.04em;
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: 14px;
}

.related-links-item:hover {
  color: var(--rust);
}

/* ==========================================================================
   pages: 议题观察
   ========================================================================== */

.framework {
  margin-bottom: 40px;
}

.framework-layer {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 6px;
  align-items: baseline;
}

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

.framework-layer .layer-index {
  grid-row: 1 / span 3;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--rust);
  font-weight: 600;
  line-height: 1.2;
}

.layer-name {
  font-size: 17px;
  margin: 0;
  line-height: 1.45;
}

.layer-question {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.75;
  margin: 0;
}

.layer-question::before {
  content: "判断问题：";
  color: var(--pine);
  font-weight: 600;
}

.layer-pass {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.75;
  margin: 0;
}

.layer-pass::before {
  content: "通过条件：";
  color: var(--pine);
  font-weight: 600;
}

.dimensions {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

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

.dimension-item {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.dimension-name {
  font-size: 15px;
  margin: 0;
  line-height: 1.5;
  color: var(--pine);
}

.dimension-source {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.75;
  margin: 0;
}

.misjudgment {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

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

.misjudgment-item {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  background-color: var(--paper);
}

.misjudgment-name {
  font-size: 16px;
  margin-bottom: 10px;
  line-height: 1.4;
  color: var(--rust);
}

.misjudgment-sign {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.75;
  margin-bottom: 10px;
}

.misjudgment-sign::before {
  content: "表现：";
  color: var(--pine);
  font-weight: 600;
}

.misjudgment-fix {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.75;
  margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.misjudgment-fix::before {
  content: "纠正：";
  color: var(--pine);
  font-weight: 600;
}

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

.review-list {
  display: grid;
  gap: 0;
}

.review-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.review-name {
  font-size: 15px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.review-note {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

/* ==========================================================================
   pages: 合作流程
   ========================================================================== */

.stage-flow {
  margin-bottom: 40px;
}

.stage-item {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

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

.stage-item .stage-no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rust);
  font-weight: 600;
  margin-bottom: 6px;
}

.stage-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.stage-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 12px;
}

.stage-action {
  min-width: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.stage-action:first-child {
  border-left-color: var(--pine);
}

.stage-action:last-child {
  border-left-color: var(--rust);
}

.stage-item .stage-output {
  display: block;
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  border-top: 1px dashed var(--line);
  padding-top: 10px;
}

.stage-item .stage-output::before {
  content: "产出物：";
  color: var(--pine);
  font-weight: 600;
}

.material-list {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.material-items {
  display: grid;
  gap: 0;
}

.material-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.material-item h3 {
  font-size: 15px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.material-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

.acceptance {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.acceptance-items {
  display: grid;
  gap: 0;
}

.acceptance-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.acceptance-item h3 {
  font-size: 15px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.acceptance-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

.change-rule {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.change-items {
  display: grid;
  gap: 0;
}

.change-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.change-item h3 {
  font-size: 15px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.change-item p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

/* ==========================================================================
   pages: 常见问题
   ========================================================================== */

.faq-shell {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.faq-group {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.faq-group-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.faq-group-intro {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  margin-bottom: 20px;
}

.faq-group-intro a {
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--paper-alt);
}

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

.faq-figure figcaption {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.7;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background-color: var(--paper);
}

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

.faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  font-size: 16px;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  min-height: 48px;
  transition: color 0.16s ease;
}

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

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 400;
  color: var(--rust);
  line-height: 1.2;
  transition: transform 0.16s ease;
}

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

.faq-item summary:hover {
  color: var(--pine);
}

.faq-answer {
  padding: 0 0 18px;
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  margin-bottom: 10px;
}

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

.faq-answer a {
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-answer a:hover {
  color: var(--rust);
}

.faq-next {
  background-color: var(--paper-alt);
  border-left: 2px solid var(--pine);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 24px;
  margin-top: 8px;
}

.faq-next-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.faq-next > p {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin-bottom: 14px;
}

.faq-next-list {
  display: grid;
  gap: 6px;
}

.faq-next-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 14px;
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-next-list a:hover {
  color: var(--rust);
}

/* ==========================================================================
   pages: 合作说明
   ========================================================================== */

.start-note {
  margin-bottom: 40px;
}

.start-note > p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 16px;
  max-width: 720px;
}

.requirement-elements {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.requirement-elements > p {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

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

.element-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.element-item .element-num {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rust);
  font-weight: 600;
}

.element-name {
  font-size: 16px;
  margin: 0;
  line-height: 1.5;
}

.element-desc {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
  margin: 0;
}

.material-prep {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.material-prep > p {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.prep-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
  margin-bottom: 16px;
}

.prep-item {
  display: grid;
  grid-template-columns: minmax(0, 160px) minmax(0, 1fr);
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.prep-name {
  font-size: 15px;
  margin: 0;
  line-height: 1.5;
  color: var(--pine);
}

.prep-form,
.prep-use {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.75;
  margin: 0;
}

.prep-form::before {
  content: "形式：";
  color: var(--stone);
}

.prep-use::before {
  content: "用途：";
  color: var(--stone);
}

.prep-note {
  font-size: 13px;
  color: var(--stone);
  line-height: 1.8;
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.accept-type {
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.accept-type > p {
  font-size: 15px;
  color: var(--stone);
  line-height: 1.85;
  max-width: 720px;
  margin-bottom: 22px;
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 16px;
}

.type-col {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 16px;
  background-color: var(--paper);
}

.type-accept {
  border-top: 2px solid var(--pine);
}

.type-reject {
  border-top: 2px solid var(--rust);
}

.type-title {
  font-size: 16px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.type-accept .type-title {
  color: var(--pine);
}

.type-reject .type-title {
  color: var(--rust);
}

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

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

.type-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background-color: var(--stone);
}

.type-note {
  font-size: 14px;
  color: var(--stone);
  line-height: 1.8;
}

.type-note a {
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 3px;
  margin: 0 2px;
}

.type-note a:hover {
  color: var(--rust);
}

.aside-index {
  display: grid;
  gap: 2px;
  counter-reset: aside-step;
}

.aside-index li {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
}

.aside-index li::before {
  counter-increment: aside-step;
  content: counter(aside-step, decimal-leading-zero);
  font-size: 12px;
  color: var(--rust);
  font-weight: 600;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.aside-index a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 0.16s ease, text-decoration-color 0.16s ease;
}

.aside-index a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

.aside-links {
  display: grid;
  gap: 2px;
}

.aside-links li {
  display: flex;
}

.aside-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 0.16s ease, text-decoration-color 0.16s ease;
  line-height: 1.5;
  padding: 2px 0;
}

.aside-links a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

/* ==========================================================================
   pages: 404
   ========================================================================== */

.error-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.error-block {
  max-width: 640px;
  padding: 72px 0 96px;
}

.error-code {
  font-family: var(--serif);
  font-size: 64px;
  font-weight: 600;
  line-height: 1;
  color: var(--rust);
  margin-bottom: 16px;
}

.error-block .page-title {
  font-size: 32px;
  margin-bottom: 18px;
  padding: 0;
  border: 0;
}

.error-text {
  font-size: 16px;
  color: var(--stone);
  line-height: 1.85;
  margin-bottom: 14px;
  max-width: 560px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  font-size: 15px;
  color: var(--pine);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.error-links a:hover {
  color: var(--rust);
}

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

@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
  }

  .nav-link {
    padding: 0 9px;
    font-size: 14px;
  }

  .page-layout,
  .judgment-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 280px);
    gap: 40px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 40px;
  }

  .hero-inner,
  .positioning .section-inner,
  .materials-inner {
    gap: 40px;
  }

  .hero-copy h1 {
    font-size: 36px;
  }

  .map-grid,
  .step-list,
  .deliverable-grid,
  .combo-grid {
    gap: 20px;
  }

  .service-item {
    grid-template-columns: 52px minmax(0, 1fr) minmax(0, 210px);
    column-gap: 16px;
  }
}

@media (max-width: 768px) {
  body.site-body {
    font-size: 15px;
  }

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

  .brand {
    padding: 12px 0;
    min-width: 0;
  }

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

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    flex-shrink: 0;
  }

  .primary-nav {
    flex-basis: 100%;
    width: 100%;
    display: block;
  }

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

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

  .nav-list > li {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    min-height: 48px;
    padding: 0 4px;
    font-size: 15px;
    border-bottom: 1px solid var(--line);
  }

  .nav-link.is-current {
    border-bottom-color: var(--line);
    color: var(--rust);
    border-left: 2px solid var(--rust);
    padding-left: 10px;
  }

  .inner-main {
    padding-bottom: 48px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12px;
  }

  .page-header {
    padding: 14px 0 18px;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 26px;
    line-height: 1.32;
  }

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

  .content-aside,
  .page-aside,
  .judgment-aside {
    margin-top: 32px;
    padding-top: 8px;
    border-top: 1px solid var(--line);
  }

  .hero {
    padding: 32px 0 40px;
  }

  .hero-inner,
  .positioning .section-inner,
  .materials-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-copy h1 {
    font-size: 28px;
    max-width: none;
  }

  .hero-lead {
    font-size: 15px;
    max-width: none;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    min-height: 48px;
    padding: 0 20px;
    font-size: 15px;
  }

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

  .hero-fact {
    padding: 12px 0;
    flex-wrap: wrap;
    gap: 4px 16px;
  }

  .fact-value {
    text-align: left;
  }

  .positioning,
  .business-map,
  .judgment,
  .process-strip,
  .materials {
    padding: 40px 0;
  }

  .section-head h2,
  .positioning-text h2,
  .materials-copy h2,
  .section-title,
  .section > .section-title,
  .section-block > h2 {
    font-size: 21px;
  }

  .positioning-text p,
  .materials-copy p,
  .section-positioning p,
  .section-wording p,
  .start-note > p {
    font-size: 15px;
  }

  .capability-item {
    grid-template-columns: 32px minmax(0, 1fr);
    column-gap: 12px;
  }

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

  .map-column {
    padding: 18px 16px;
  }

  .step-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding-top: 20px;
  }

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

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

  .step-item p {
    margin-bottom: 10px;
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 32px var(--gutter) 24px;
  }

  .footer-bottom {
    padding: 16px var(--gutter) 24px;
  }

  .page-title-area {
    padding: 16px 0 18px;
    margin-bottom: 24px;
  }

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

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

  .section,
  .section-block,
  .framework,
  .dimensions,
  .misjudgment,
  .review,
  .stage-flow,
  .material-list,
  .acceptance,
  .change-rule,
  .faq-group,
  .start-note,
  .requirement-elements,
  .material-prep,
  .accept-type {
    margin-bottom: 32px;
    padding-top: 24px;
  }

  .faq-shell {
    padding: 0 var(--gutter);
  }

  .faq-group:first-child {
    padding-top: 0;
  }

  .faq-group-title {
    font-size: 20px;
  }

  .faq-item summary {
    font-size: 15px;
    padding: 14px 0;
  }

  .faq-item summary::after {
    font-size: 18px;
  }

  .faq-next {
    padding: 18px 18px 16px;
  }

  .criteria-item,
  .element-item {
    grid-template-columns: 32px minmax(0, 1fr);
    column-gap: 12px;
  }

  .boundary-block {
    padding: 16px 16px;
  }

  .service-item {
    grid-template-columns: 44px minmax(0, 1fr);
    column-gap: 14px;
    padding: 16px 0 16px 12px;
  }

  .service-num {
    font-size: 18px;
  }

  .service-cond-col {
    grid-column: 2 / -1;
    border-left: 0;
    padding-left: 0;
    border-top: 1px dashed var(--line);
    padding-top: 10px;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px 16px;
  }

  .service-cond,
  .service-output {
    flex: 1 1 200px;
  }

  .deliverable-grid,
  .combo-grid,
  .misjudgment-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .framework-layer {
    grid-template-columns: 32px minmax(0, 1fr);
    column-gap: 12px;
  }

  .framework-layer .layer-index {
    font-size: 17px;
  }

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

  .stage-actions {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

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

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

  .error-block {
    padding: 48px 0 64px;
  }

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

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

  .error-links {
    gap: 4px 16px;
  }

  .related-links {
    padding-top: 16px;
  }
}

@media (max-width: 420px) {
  .hero-copy h1 {
    font-size: 25px;
  }

  .page-title {
    font-size: 23px;
  }

  .service-item {
    grid-template-columns: minmax(0, 1fr);
    padding-left: 12px;
  }

  .service-num-col {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .service-cond-col {
    grid-column: 1 / -1;
  }

  .hero-actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}