@font-face {
  font-family: "Basic Sans";
  src: url("./assets/fonts/basic-sans-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Basic Sans";
  src: url("./assets/fonts/basic-sans-semibold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Basic Sans";
  src: url("./assets/fonts/basic-sans-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter Local";
  src: url("./assets/fonts/inter-variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter Local";
  src: url("./assets/fonts/inter-italic-variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --font-brand: "Basic Sans", "Inter Local", Inter, ui-sans-serif, system-ui, sans-serif;
  --font-text: "Inter Local", Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", ui-sans-serif, system-ui, sans-serif;
  --font-zh-display: "Inter Local", Inter, "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --ink: #101418;
  --muted: #5c6670;
  --paper: #f7f9f9;
  --surface: #ffffff;
  --panel: #eef3f4;
  --line: #d7e0e2;
  --blue: #173f5f;
  --teal: #1f766d;
  --steel: #26343d;
  --slate: #334853;
  --amber: #a96f32;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-text);
}

html[lang="zh-CN"] body {
  font-family: var(--font-text);
}

a {
  color: inherit;
  text-decoration: none;
}

.fixed-term {
  font-weight: inherit;
  color: inherit;
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: rgba(31, 118, 109, 0.58);
}

h1 .fixed-term,
h2 .fixed-term,
h3 .fixed-term,
summary .fixed-term,
nav .fixed-term,
.question-side .fixed-term,
.qa-category-card .fixed-term,
.related-questions .fixed-term,
.system-map .fixed-term,
.module-strip .fixed-term,
.use-case-nav .fixed-term {
  text-decoration: none;
}

/* Brand font application */
h1,
h2,
h3,
.brand,
nav,
.button,
.section-kicker,
.eyebrow,
.map-layer,
.module-strip span,
.case-heading span,
.overview-body article span,
.position-grid span,
.module-grid span,
.doc-grid span,
.service-card-grid article span,
.qa-category-card span,
.future-grid strong,
.choice-grid strong,
.phase-row strong,
.architecture-stack .label,
.boundary-row,
.question-side strong,
.case-related-qa h3,
.qa-topic-card summary {
  font-family: var(--font-brand);
}

p,
li,
input,
textarea,
select,
.lead,
.emphasis,
.note,
.diagram-note,
.copy-stack,
.wide-copy,
.case-body,
.answer-card,
.qa-category-card,
.question-explainer,
.site-footer,
.contact-card,
.service-detail-grid,
.service-card-grid,
.future-grid,
.choice-grid {
  font-family: var(--font-text);
}

p {
  margin-top: 0;
}


/* Chinese display refinement */
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2,
html[lang="zh-CN"] h3,
html[lang="zh-CN"] .brand,
html[lang="zh-CN"] nav,
html[lang="zh-CN"] .button,
html[lang="zh-CN"] .section-kicker,
html[lang="zh-CN"] .eyebrow,
html[lang="zh-CN"] .map-layer,
html[lang="zh-CN"] .module-strip span,
html[lang="zh-CN"] .case-heading span,
html[lang="zh-CN"] .overview-body article span,
html[lang="zh-CN"] .position-grid span,
html[lang="zh-CN"] .module-grid span,
html[lang="zh-CN"] .doc-grid span,
html[lang="zh-CN"] .service-card-grid article span,
html[lang="zh-CN"] .qa-category-card span,
html[lang="zh-CN"] .future-grid strong,
html[lang="zh-CN"] .choice-grid strong,
html[lang="zh-CN"] .phase-row strong,
html[lang="zh-CN"] .architecture-stack .label,
html[lang="zh-CN"] .boundary-row,
html[lang="zh-CN"] .question-side strong,
html[lang="zh-CN"] .case-related-qa h3,
html[lang="zh-CN"] .qa-topic-card summary {
  font-family: var(--font-zh-display);
}

html[lang="zh-CN"] h1 {
  font-weight: 650;
  line-height: 1.08;
}

html[lang="zh-CN"] h2 {
  font-weight: 640;
  line-height: 1.12;
}

html[lang="zh-CN"] h3 {
  font-weight: 680;
}

html[lang="zh-CN"] .hero h1,
html[lang="zh-CN"] .service-hero h1,
html[lang="zh-CN"] .qa-hero h1,
html[lang="zh-CN"] .qa-question-page h1,
html[lang="zh-CN"] .use-hero h1,
html[lang="zh-CN"] .use-case-detail h1,
html[lang="zh-CN"] .section > h1 {
  font-weight: 640;
}

html[lang="zh-CN"] .brand strong {
  font-weight: 720;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 62px;
  padding: 10px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(16, 20, 24, 0.1);
  background: rgba(247, 249, 249, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: #fff;
}

.logo-mark {
  overflow: hidden;
  border: 1px solid rgba(23, 63, 95, 0.18);
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.8);
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  color: var(--muted);
  font-size: 12.5px;
}

nav a:hover,
nav summary:hover,
.text-link:hover {
  color: var(--teal);
}

.nav-menu {
  position: relative;
}

.nav-menu summary {
  cursor: pointer;
  list-style: none;
}

.nav-menu summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  z-index: 30;
  display: grid;
  min-width: 280px;
  padding: 10px;
  border: 1px solid rgba(16, 20, 24, 0.1);
  background: #fff;
  box-shadow: 0 24px 60px rgba(16, 20, 24, 0.12);
}

.nav-dropdown a {
  padding: 10px 12px;
  color: var(--muted);
}

.nav-dropdown a:hover {
  color: var(--blue);
  background: var(--panel);
}

.nav-pill {
  padding: 8px 12px;
  border: 1px solid rgba(23, 63, 95, 0.25);
  color: var(--blue);
  background: #fff;
  font-weight: 760;
}

.lang-switch {
  padding: 8px 10px;
  border: 1px solid rgba(31, 118, 109, 0.22);
  background: rgba(31, 118, 109, 0.08);
  color: var(--teal);
  font-weight: 820;
}

.hero {
  display: grid;
  grid-template-columns: minmax(520px, 1.08fr) minmax(340px, 0.92fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  padding: 46px clamp(18px, 5vw, 64px) 32px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
}

h1 {
  max-width: 980px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 5.1vw, 4.45rem);
  font-weight: 780;
  line-height: 1;
  text-wrap: balance;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.7vw, 3.35rem);
  font-weight: 750;
  line-height: 1.06;
  text-wrap: balance;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
}

.lead {
  max-width: 780px;
  color: #334047;
  font-size: 1.18rem;
  line-height: 1.58;
}

.emphasis {
  max-width: 780px;
  color: var(--blue);
  font-size: 1rem;
  font-weight: 760;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--blue);
  font-size: 14px;
  font-weight: 780;
}

.button.primary {
  color: #fff;
  background: var(--blue);
}

.button.secondary {
  color: var(--blue);
  background: #fff;
}

.button.ghost {
  color: var(--slate);
  border-color: var(--line);
  background: transparent;
}

.system-map {
  display: grid;
  gap: 10px;
  padding: 28px;
  border: 1px solid rgba(23, 63, 95, 0.22);
  background:
    linear-gradient(90deg, rgba(23, 63, 95, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(23, 63, 95, 0.06) 1px, transparent 1px),
    #ffffff;
  background-size: 26px 26px;
}

.map-layer {
  display: grid;
  place-items: center;
  min-height: 66px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  font-weight: 830;
  text-align: center;
}

.map-layer.focus {
  min-height: 82px;
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 18px 50px rgba(23, 63, 95, 0.2);
}

.map-layer.execution {
  color: #fff;
  background: var(--steel);
}

.map-arrow {
  color: var(--blue);
  text-align: center;
  font-weight: 900;
}

.module-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.module-strip span {
  min-height: 42px;
  padding: 10px;
  border: 1px solid rgba(31, 118, 109, 0.2);
  background: rgba(31, 118, 109, 0.08);
  color: var(--teal);
  font-size: 12px;
  font-weight: 820;
  text-align: center;
}

.execution-boundary {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 46px;
  color: var(--amber);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.execution-boundary::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 2px dashed var(--amber);
}

.execution-boundary span {
  position: relative;
  padding: 6px 12px;
  background: var(--surface);
}

.diagram-note,
.note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.position-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 0 clamp(18px, 5vw, 64px);
}

.position-grid article {
  min-height: 190px;
  padding: 28px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: var(--panel);
}

.position-grid span,
.module-grid span,
.doc-grid span {
  display: block;
  margin-bottom: 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.position-grid h2 {
  font-size: clamp(1.42rem, 2vw, 1.75rem);
  line-height: 1.12;
  text-wrap: balance;
}

.position-grid p,
.copy-stack p,
.wide-copy p,
.module-grid p,
.pathway-grid p,
.entry-grid p,
.doc-grid p,
.roadmap-detail p,
.contact-card p,
.site-footer p {
  color: var(--muted);
  line-height: 1.7;
}

.section {
  padding: clamp(58px, 8vw, 104px) clamp(18px, 5vw, 64px);
}

.section > h2 {
  max-width: 980px;
}

.split-section,
.entry-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: start;
}

.copy-stack {
  max-width: 760px;
}

.text-link {
  color: var(--blue);
  font-weight: 830;
}

.dark-section {
  color: #fff;
  background: var(--steel);
}

.dark-section .section-kicker {
  color: #75c9bf;
}

.dark-section p {
  color: #d3dde0;
}

.wide-copy {
  max-width: 1040px;
}

.module-grid,
.doc-grid,
.pathway-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card {
  padding: 26px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: var(--surface);
}

.pathway-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pathway-grid article {
  min-height: 240px;
}

.hero-copy h1 {
  max-width: 760px;
}

.hero-copy .lead,
.hero-copy .emphasis {
  max-width: 700px;
}

.split-section h2,
.entry-grid h2 {
  font-size: clamp(1.75rem, 2.7vw, 2.55rem);
  line-height: 1.12;
}

.pathway-grid h3,
.module-grid h3,
.doc-grid h3 {
  line-height: 1.18;
  text-wrap: balance;
}

.module-grid article {
  min-height: 230px;
}

.entry-grid {
  align-items: stretch;
}

.entry-grid article {
  display: flex;
  flex-direction: column;
  min-height: 260px;
}

.entry-grid article > .text-link {
  margin-top: auto;
}

.roadmap-preview {
  background: var(--panel);
}

.phase-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 16px;
}

.phase-row article {
  min-height: 150px;
  padding: 22px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: rgba(255, 255, 255, 0.82);
}

.phase-row strong,
.phase-row span {
  display: block;
}

.phase-row strong {
  margin-bottom: 16px;
  color: var(--blue);
}

.phase-row span {
  color: var(--muted);
  line-height: 1.45;
}

.system-position {
  max-width: 1180px;
}

.architecture-stack {
  display: grid;
  gap: 10px;
  max-width: 860px;
  margin-top: 30px;
}

.architecture-stack .row {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  min-height: 58px;
  border: 1px solid var(--line);
  background: #fff;
}

.architecture-stack .label {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  color: #fff;
  background: var(--blue);
  font-weight: 820;
}

.architecture-stack .value {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  color: var(--muted);
  line-height: 1.55;
}

.boundary-row {
  display: grid;
  place-items: center;
  min-height: 54px;
  color: var(--amber);
  border-top: 2px dashed var(--amber);
  border-bottom: 2px dashed var(--amber);
  background: rgba(169, 111, 50, 0.06);
  font-weight: 900;
}

.roadmap-detail {
  display: grid;
  gap: 12px;
  margin-top: 30px;
}

.roadmap-detail article {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 20px;
  padding: 24px;
  background: #fff;
  border: 1px solid rgba(16, 20, 24, 0.08);
}

.roadmap-detail strong {
  color: var(--blue);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  gap: 32px;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  padding: 16px;
  background: var(--panel);
  color: var(--muted);
}

.use-hero {
  max-width: 1180px;
  padding-top: clamp(48px, 7vw, 86px);
  padding-bottom: clamp(34px, 5vw, 58px);
}

.use-hero > p:not(.section-kicker):not(.lead):not(.emphasis) {
  max-width: 900px;
  color: var(--muted);
  line-height: 1.7;
}

.use-index {
  background: var(--panel);
  padding-top: clamp(46px, 6vw, 70px);
  padding-bottom: clamp(48px, 7vw, 78px);
}

.overview-body {
  display: grid;
  gap: 16px;
  max-width: 1120px;
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: clamp(52px, 7vw, 82px);
}

.overview-body > p {
  max-width: 900px;
  color: var(--muted);
  line-height: 1.72;
}

.overview-body article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  column-gap: 22px;
  row-gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.overview-body article span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: #fff;
  background: var(--blue);
  font-weight: 850;
}

.overview-body article h2,
.overview-body article p {
  grid-column: 2;
}

.overview-body article h2 {
  max-width: 920px;
  margin-bottom: 2px;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
}

.overview-body article p {
  max-width: 880px;
  margin-bottom: 8px;
  color: var(--muted);
  line-height: 1.56;
}

.overview-body .emphasis {
  color: var(--blue);
  font-weight: 820;
  line-height: 1.45;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.use-case-grid a {
  display: flex;
  align-items: center;
  min-height: 86px;
  padding: 20px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: rgba(255, 255, 255, 0.86);
  color: var(--blue);
  font-weight: 820;
  line-height: 1.35;
}

.use-case-grid a:hover {
  color: var(--teal);
  background: #fff;
}

.case-navigation {
  border-top: 1px solid var(--line);
  padding-top: clamp(42px, 6vw, 68px);
}

.use-case-detail {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(28px, 5vw, 70px);
  padding: clamp(58px, 8vw, 104px) clamp(18px, 5vw, 64px);
  border-top: 1px solid rgba(16, 20, 24, 0.08);
}

.use-case-detail:nth-of-type(even) {
  background: #fff;
}

.case-heading {
  position: sticky;
  top: 94px;
  align-self: start;
}

.case-heading span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  color: #fff;
  background: var(--blue);
  font-weight: 850;
}

.case-heading h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.case-heading p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.case-body {
  max-width: 760px;
}

.case-body h3 {
  margin-top: 34px;
  margin-bottom: 10px;
  color: var(--blue);
}

.case-body h3:first-of-type {
  margin-top: 30px;
}

.case-focus {
  margin: 22px 0 28px;
  padding: 18px 20px;
  border-left: 4px solid var(--amber);
  background: rgba(169, 111, 50, 0.08);
  color: var(--ink) !important;
  font-weight: 760;
}

.case-body p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.78;
}

.case-message {
  margin-top: 26px;
  padding: 18px 20px;
  border-left: 4px solid var(--teal);
  background: rgba(31, 118, 109, 0.08);
  color: var(--ink) !important;
  font-weight: 760;
}

.simple-diagram {
  display: grid;
  gap: 8px;
  margin: 14px 0 20px;
  padding: 16px 18px;
  border: 1px solid rgba(23, 63, 95, 0.16);
  background: rgba(255, 255, 255, 0.78);
}

.simple-diagram p {
  margin: 0;
  color: var(--steel);
  line-height: 1.55;
}

.qa-hero {
  padding-bottom: clamp(34px, 5vw, 56px);
}

.qa-list {
  display: grid;
  gap: 10px;
  padding-top: 0;
}

.qa-item {
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: #fff;
}

.qa-item summary {
  cursor: pointer;
  padding: 20px 24px;
  color: var(--blue);
  font-size: 18px;
  font-weight: 820;
  line-height: 1.35;
}

.qa-item summary::marker {
  color: var(--teal);
}

.qa-item > div {
  padding: 0 24px 24px;
}

.qa-item p {
  max-width: 920px;
  color: var(--muted);
  line-height: 1.68;
}

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

.service-grid article {
  min-height: 130px;
  padding: 18px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: var(--panel);
}

.service-grid strong,
.service-grid span {
  display: block;
}

.service-grid strong {
  margin-bottom: 10px;
  color: var(--blue);
}

.service-grid span {
  color: var(--muted);
  line-height: 1.55;
}

.qa-cta {
  background: var(--panel);
}

.qa-cta p {
  max-width: 820px;
  color: var(--muted);
  line-height: 1.7;
}

.service-hero {
  padding-bottom: clamp(34px, 5vw, 58px);
}

.services-section,
.service-cards-section,
.service-choice {
  background: #fff;
}

.service-detail-grid,
.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list,
.related-grid {
  display: grid;
  gap: 12px;
}

.service-detail-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 28px 0;
}

.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 28px;
}

.service-detail-grid article,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  padding: 24px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: var(--surface);
}

.service-detail-grid ul,
.service-card-grid ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.68;
}

.service-card-grid article span,
.qa-category-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.service-card-grid article {
  min-height: 320px;
}

.future-grid article {
  min-height: 190px;
}

.future-grid strong,
.future-grid span,
.choice-grid strong,
.choice-grid span,
.qa-category-card strong,
.qa-category-card em {
  display: block;
}

.future-grid strong,
.choice-grid strong,
.qa-category-card strong {
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 18px;
}

.future-grid span,
.choice-grid span,
.qa-category-card em {
  color: var(--teal);
  font-style: normal;
  font-weight: 760;
}

.qa-search {
  display: grid;
  gap: 10px;
  max-width: 720px;
  margin-top: 30px;
}

.qa-search span {
  color: var(--blue);
  font-weight: 820;
}

.qa-search input {
  min-height: 52px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.qa-category-card {
  min-height: 0;
}

.qa-category-card p,
.qa-category-card li span,
.answer-card p,
.question-explainer p {
  color: var(--muted);
  line-height: 1.68;
}

.qa-category-card ul,
.qa-category-card ol {
  display: grid;
  gap: 10px;
  margin: 18px 0;
  padding-left: 20px;
}

.qa-category-card li a {
  color: var(--blue);
  font-weight: 760;
}

.qa-category-card li span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
}

.qa-category-card summary {
  cursor: pointer;
  color: var(--blue);
  font-weight: 820;
}

.qa-question-page {
  padding-bottom: clamp(34px, 5vw, 56px);
}

.service-hero h1,
.qa-hero h1,
.qa-question-page h1,
.use-hero h1,
.use-case-detail h1,
.section > h1 {
  font-size: clamp(2.25rem, 4.2vw, 3.65rem);
  line-height: 1.04;
}

.services-section > h2,
.service-cards-section > h2,
.service-choice > h2,
.qa-cta > h2,
.related-questions > h2,
.question-explainer > h2 {
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  line-height: 1.1;
}

.question-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.34fr);
  gap: 12px;
  margin-top: 30px;
}

.answer-card h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
}

.detailed-answer p {
  margin-bottom: 14px;
}

.detailed-answer strong {
  color: var(--blue);
  font-weight: 820;
}

.detailed-answer ul,
.detailed-answer ol {
  display: grid;
  gap: 8px;
  margin: 14px 0 20px;
  padding: 16px 20px 16px 34px;
  border-left: 3px solid rgba(31, 118, 109, 0.55);
  background: rgba(31, 118, 109, 0.07);
  color: var(--muted);
  line-height: 1.62;
}

.detailed-answer li::marker {
  color: var(--teal);
}

.detailed-answer h3 {
  margin-top: 26px;
  margin-bottom: 10px;
  padding-left: 12px;
  border-left: 3px solid rgba(31, 118, 109, 0.48);
  color: var(--blue);
  font-size: 19px;
  line-height: 1.25;
}

.answer-flow {
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
  background: rgba(31, 118, 109, 0.08);
  color: var(--steel) !important;
  font-weight: 780;
  line-height: 1.5;
}

.answer-callout {
  padding: 12px 14px;
  border-left: 3px solid var(--amber);
  background: rgba(169, 111, 50, 0.08);
  color: var(--ink) !important;
  font-weight: 780;
  line-height: 1.5;
}

.answer-callout strong,
.answer-flow strong {
  color: inherit;
  font-weight: 850;
}

.question-side {
  align-self: start;
  background: var(--panel);
}

.question-side strong {
  display: block;
  margin: 18px 0 8px;
  color: var(--blue);
}

.question-side strong:first-child {
  margin-top: 0;
}

.related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.related-grid a {
  min-height: 110px;
  color: var(--blue);
  font-weight: 760;
  line-height: 1.45;
}

.zh-page p,
.zh-page li,
.zh-page span {
  line-height: 1.78;
}

.zh-page h1,
.zh-page h2,
.zh-page h3 {
  letter-spacing: 0;
}

.zh-page .lead {
  font-size: 1.12rem;
}

.zh-note {
  padding: 16px 18px;
  border-left: 4px solid var(--teal);
  background: rgba(31, 118, 109, 0.08);
  color: var(--steel);
  line-height: 1.75;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, minmax(160px, 0.8fr));
  gap: 28px;
  padding: 38px clamp(18px, 5vw, 64px);
  border-top: 1px solid rgba(16, 20, 24, 0.1);
  background: #fff;
}

.site-footer p {
  margin: 8px 0 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-brand img {
  width: 54px;
  height: 54px;
  object-fit: cover;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand span {
  color: var(--muted);
  font-size: 14px;
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 9px;
}

.footer-col strong {
  margin-bottom: 4px;
}

.footer-col a {
  color: var(--muted);
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--teal);
}

.footer-institute {
  padding: 14px;
  border: 1px solid rgba(23, 63, 95, 0.16);
  border-radius: 8px;
  background: rgba(238, 243, 244, 0.72);
}

.footer-institute .footer-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin-top: 4px;
  padding: 9px 12px;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
}

.footer-institute .footer-cta:hover {
  background: var(--teal);
  color: #fff;
}


/* Topical SEO/GEO linking */
.case-related-qa {
  margin: 30px 0 26px;
  padding: 22px;
  border: 1px solid rgba(23, 63, 95, 0.14);
  background: rgba(255, 255, 255, 0.72);
}

.case-related-qa h3 {
  margin-top: 0;
}

.case-related-qa p {
  margin-bottom: 16px;
}

.case-related-qa ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
}

.case-related-qa a,
.qa-topic-card a {
  color: var(--blue);
  font-weight: 780;
}

.case-related-qa a:hover,
.qa-topic-card a:hover {
  color: var(--teal);
}

.qa-topic-hub {
  padding-top: clamp(22px, 4vw, 44px);
  padding-bottom: clamp(30px, 5vw, 58px);
}

.qa-topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.qa-topic-card {
  padding: 24px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: var(--surface);
}

.qa-topic-card summary {
  cursor: pointer;
  color: var(--blue);
  font-size: 18px;
  font-weight: 830;
  line-height: 1.35;
}

.qa-topic-card summary::marker {
  color: var(--teal);
}

.qa-topic-card p {
  margin: 16px 0;
  color: var(--muted);
  line-height: 1.68;
}

.qa-topic-card ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}


/* Content/product P0 additions */
.advanced-architecture .side-governance {
  border-color: rgba(169, 111, 50, 0.32);
  background: rgba(169, 111, 50, 0.06);
}

.advanced-architecture .side-governance .label {
  background: var(--amber);
}

.evidence-roadmap article {
  grid-template-columns: 160px minmax(0, 1fr);
}

.evidence-roadmap p {
  margin-bottom: 8px;
}


/* Home page rhythm refinement */
main > .hero:first-child {
  align-items: start;
  padding-top: clamp(38px, 5vw, 68px);
  padding-bottom: clamp(22px, 3.6vw, 38px);
}

main > .hero:first-child .hero-copy {
  padding-top: clamp(6px, 1.5vw, 18px);
}

main > .hero:first-child h1 {
  max-width: 920px;
  margin-bottom: 18px;
}

main > .hero:first-child .lead {
  max-width: 740px;
  margin-bottom: 14px;
}

main > .hero:first-child .emphasis {
  max-width: 720px;
  margin-bottom: 0;
}

main > .hero:first-child .hero-actions {
  margin-top: 24px;
}

main > .hero:first-child .system-map {
  align-self: start;
  max-width: 620px;
  margin-left: auto;
}

main > .hero:first-child + .position-grid {
  padding-bottom: clamp(36px, 5vw, 58px);
}

main > .hero:first-child + .position-grid article {
  display: flex;
  flex-direction: column;
  min-height: 172px;
}

main > .hero:first-child + .position-grid h2 {
  margin-bottom: 12px;
}

main > .hero:first-child + .position-grid p {
  margin-bottom: 0;
}

html[lang="zh-CN"] main > .hero:first-child h1 {
  max-width: 760px;
  font-size: clamp(2.35rem, 4.35vw, 3.75rem);
}



/* P0 structure corrections */
.system-map-linear {
  position: relative;
  max-width: 760px !important;
  padding: 30px;
}

.system-map-linear .map-layer {
  min-height: 52px;
}

.system-map-linear .side-note {
  position: absolute;
  right: 26px;
  top: 52%;
  max-width: 160px;
  padding: 10px 12px;
  border: 1px solid rgba(169, 111, 50, 0.28);
  background: rgba(169, 111, 50, 0.08);
  color: var(--amber);
  font-size: 12px;
  font-weight: 820;
  line-height: 1.35;
}

.available-now {
  max-width: 760px;
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
  background: rgba(31, 118, 109, 0.08);
  color: var(--steel);
  font-weight: 760;
  line-height: 1.55;
}

main > .hero:first-child {
  padding-top: clamp(28px, 4vw, 54px);
  padding-bottom: clamp(18px, 3vw, 30px);
  gap: clamp(26px, 4vw, 58px);
}

main > .hero:first-child .system-map {
  margin-left: 0;
}

.case-lera-applies {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid rgba(31, 118, 109, 0.18);
  background: rgba(31, 118, 109, 0.06);
}

.case-lera-applies h3 {
  margin-top: 0;
}

.case-lera-applies ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.62;
}

.qa-search-results {
  max-width: 920px;
  margin-top: 18px;
}

.qa-search-results > strong {
  display: block;
  margin-bottom: 12px;
  color: var(--blue);
}

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

.qa-result-list a {
  display: grid;
  gap: 5px;
  padding: 16px;
  border: 1px solid rgba(16, 20, 24, 0.08);
  background: #fff;
}

.qa-result-list span {
  color: var(--teal);
  font-size: 12px;
  font-weight: 820;
}

.qa-result-list b {
  color: var(--blue);
  font-size: 16px;
}

.qa-result-list em {
  color: var(--muted);
  font-size: 13px;
  font-style: normal;
  line-height: 1.5;
}

.compact-footer {
  grid-template-columns: minmax(260px, 1.15fr) minmax(210px, 0.8fr) minmax(220px, 0.72fr);
  align-items: start;
  gap: clamp(22px, 4vw, 54px);
  padding-top: 34px;
  padding-bottom: 34px;
}

.footer-brand-col {
  max-width: 460px;
}

.footer-brand-col p {
  max-width: 390px;
  color: var(--muted);
  line-height: 1.6;
}

.footer-contact-col {
  max-width: 250px;
  justify-self: end;
  padding: 14px;
  border: 1px solid rgba(23, 63, 95, 0.14);
  background: rgba(238, 243, 244, 0.66);
}

.footer-contact-col .footer-cta {
  color: var(--blue);
  font-weight: 820;
}

@media (max-width: 980px) {
  .compact-footer {
    grid-template-columns: 1fr;
  }

  .footer-contact-col {
    justify-self: stretch;
    max-width: none;
  }

  .system-map-linear .side-note {
    position: static;
    max-width: none;
    margin: 4px 0;
    text-align: center;
  }

  .compact-footer {
    grid-template-columns: 1fr;
  }

  .footer-contact-col {
    justify-self: stretch;
    max-width: none;
  }

  .system-map-linear .side-note {
    position: static;
    max-width: none;
    margin: 4px 0;
    text-align: center;
  }


  .qa-topic-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  nav {
    justify-content: flex-start;
  }

  .hero,
  .split-section,
  .entry-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .position-grid,
  .module-grid,
  .doc-grid,
  .pathway-grid,
  .phase-row,
  .use-case-grid,
  .use-case-detail,
  .service-grid,
  .service-detail-grid,
  .service-card-grid,
  .future-grid,
  .choice-grid,
  .qa-category-list,
  .question-layout,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .case-heading {
    position: static;
  }

  .nav-dropdown {
    left: 0;
    right: auto;
  }
}

@media (max-width: 620px) {
  .site-header {
    position: static;
  }

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

  .site-footer {
    grid-template-columns: 1fr;
  }

  .overview-body article {
    grid-template-columns: 1fr;
  }

  .overview-body article h2,
  .overview-body article p {
    grid-column: 1;
  }

  .architecture-stack .row,
  .roadmap-detail article {
    grid-template-columns: 1fr;
  }

  .architecture-stack .label {
    min-height: 48px;
  }
}

/* Home visual and footer refinement 20260615-home-footer */
main > .hero:first-child {
  grid-template-columns: minmax(500px, 0.98fr) minmax(390px, 1.02fr);
  gap: clamp(42px, 6vw, 88px);
  align-items: center;
  padding-top: clamp(54px, 6vw, 82px);
  padding-bottom: clamp(42px, 5vw, 68px);
}

main > .hero:first-child .hero-copy {
  max-width: 780px;
  padding-top: 0;
}

main > .hero:first-child .eyebrow {
  margin-bottom: 22px;
}

main > .hero:first-child h1 {
  max-width: 760px;
  margin-bottom: 24px;
}

main > .hero:first-child .lead {
  max-width: 690px;
  margin-bottom: 20px;
  line-height: 1.72;
}

main > .hero:first-child .emphasis {
  max-width: 660px;
  line-height: 1.72;
}

main > .hero:first-child .hero-actions {
  margin-top: 32px;
  gap: 12px;
}

main > .hero:first-child .available-now {
  max-width: 650px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(23, 63, 95, 0.12);
}

.home-visual-map {
  position: relative;
  min-height: clamp(430px, 47vw, 600px);
  padding: clamp(26px, 3.3vw, 42px);
  overflow: hidden;
  border-color: rgba(23, 63, 95, 0.18);
  background:
    linear-gradient(90deg, rgba(255,255,255,0.92), rgba(238,243,244,0.92)),
    repeating-linear-gradient(0deg, rgba(23,63,95,0.07) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(23,63,95,0.055) 0 1px, transparent 1px 32px);
  box-shadow: 0 30px 70px rgba(23, 63, 95, 0.12);
}

.home-visual-map::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(23, 63, 95, 0.12);
  pointer-events: none;
}

.visual-topline {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-field {
  position: relative;
  min-height: clamp(320px, 34vw, 450px);
  margin-top: 26px;
}

.visual-rail {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 1px;
  background: rgba(23, 63, 95, 0.18);
  transform-origin: center;
}

.rail-one {
  top: 34%;
  transform: rotate(-11deg);
}

.rail-two {
  top: 62%;
  transform: rotate(9deg);
}

.visual-node,
.visual-boundary {
  position: absolute;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70px;
  padding: 14px 18px;
  border: 1px solid rgba(23, 63, 95, 0.18);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 40px rgba(16, 20, 24, 0.08);
}

.visual-node span {
  font-weight: 820;
  color: var(--slate);
}

.node-intent {
  left: 4%;
  top: 14%;
  width: 42%;
}

.node-judge {
  right: 7%;
  top: 28%;
  width: 34%;
}

.node-govern {
  left: 13%;
  bottom: 24%;
  width: 36%;
}

.visual-boundary {
  right: 4%;
  bottom: 7%;
  width: 45%;
  min-height: 96px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  background: rgba(23, 63, 95, 0.94);
  color: #fff;
}

.visual-boundary strong,
.visual-boundary span {
  display: block;
}

.visual-boundary span {
  margin-top: 6px;
  color: rgba(255,255,255,0.74);
  font-size: 14px;
}

.home-visual-map .diagram-note {
  position: relative;
  z-index: 1;
  max-width: 470px;
  margin-top: 10px;
  color: var(--muted);
}

.service-card-grid {
  gap: 14px;
}

.service-card-grid article {
  min-height: 0;
  padding: 20px;
}

.service-card-grid article span {
  margin-bottom: 10px;
}

.service-card-grid article h3 {
  margin-bottom: 10px;
}

.service-card-grid article p {
  margin-bottom: 14px;
  line-height: 1.58;
}

.entry-grid .compact-cta {
  align-self: flex-start;
  width: auto;
  max-width: max-content;
  padding-inline: 20px;
}

.compact-footer {
  grid-template-columns: minmax(340px, 1.08fr) minmax(390px, 1.22fr) minmax(300px, 0.9fr);
  gap: clamp(24px, 3.2vw, 52px);
  align-items: start;
}

.footer-middle-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 4vw, 48px);
}

.footer-link-group {
  display: grid;
  align-content: start;
  gap: 8px;
}

.footer-link-group strong {
  margin-bottom: 4px;
}

.footer-contact-col {
  justify-self: end;
  max-width: 320px;
  padding: 16px;
  border: 1px solid rgba(23, 63, 95, 0.14);
  background: rgba(238, 243, 244, 0.62);
}

.footer-brand-col {
  max-width: 520px;
}

.footer-brand-col p {
  max-width: 520px;
}

.footer-contact-col p {
  margin: 2px 0 8px;
  font-size: 14px;
  line-height: 1.55;
  white-space: normal;
  overflow-wrap: anywhere;
}

.footer-contact-col .footer-cta {
  display: inline-flex;
  width: fit-content;
  color: #fff;
  background: var(--blue);
  padding: 9px 12px;
  border-radius: 6px;
  font-weight: 820;
}

.footer-contact-col .footer-institute-link {
  margin-top: 4px;
  font-size: 13px;
}

@media (max-width: 980px) {
  main > .hero:first-child {
    grid-template-columns: 1fr;
  }

  .home-visual-map {
    min-height: 420px;
  }

  .compact-footer {
    grid-template-columns: 1fr;
  }

  .footer-middle-col {
    grid-template-columns: 1fr 1fr;
  }

  .footer-contact-col {
    justify-self: start;
    max-width: 280px;
  }

  .footer-contact-col p {
    white-space: normal;
  }
}

@media (max-width: 640px) {
  main > .hero:first-child {
    padding-top: 38px;
  }

  .home-visual-map {
    min-height: 390px;
    padding: 22px;
  }

  .visual-node,
  .visual-boundary {
    min-height: 62px;
    padding: 12px 14px;
  }

  .node-intent,
  .node-judge,
  .node-govern,
  .visual-boundary {
    width: 54%;
  }

  .footer-middle-col {
    grid-template-columns: 1fr;
  }
}

/* English font role refinement 20260615-font-english */
html:not([lang="zh-CN"]) h1,
html:not([lang="zh-CN"]) h2,
html:not([lang="zh-CN"]) h3,
html:not([lang="zh-CN"]) h4,
html:not([lang="zh-CN"]) h5,
html:not([lang="zh-CN"]) h6,
html:not([lang="zh-CN"]) .brand strong,
html:not([lang="zh-CN"]) .footer-brand strong {
  font-family: var(--font-brand);
}

html:not([lang="zh-CN"]) body,
html:not([lang="zh-CN"]) p,
html:not([lang="zh-CN"]) li,
html:not([lang="zh-CN"]) nav,
html:not([lang="zh-CN"]) .button,
html:not([lang="zh-CN"]) .brand small,
html:not([lang="zh-CN"]) .eyebrow,
html:not([lang="zh-CN"]) .section-kicker,
html:not([lang="zh-CN"]) .lead,
html:not([lang="zh-CN"]) .emphasis,
html:not([lang="zh-CN"]) .note,
html:not([lang="zh-CN"]) .diagram-note,
html:not([lang="zh-CN"]) .available-now,
html:not([lang="zh-CN"]) .map-layer,
html:not([lang="zh-CN"]) .visual-topline,
html:not([lang="zh-CN"]) .visual-node,
html:not([lang="zh-CN"]) .visual-boundary span,
html:not([lang="zh-CN"]) .module-strip span,
html:not([lang="zh-CN"]) .case-heading span,
html:not([lang="zh-CN"]) .overview-body article span,
html:not([lang="zh-CN"]) .position-grid span,
html:not([lang="zh-CN"]) .module-grid span,
html:not([lang="zh-CN"]) .doc-grid span,
html:not([lang="zh-CN"]) .service-card-grid article span,
html:not([lang="zh-CN"]) .qa-category-card span,
html:not([lang="zh-CN"]) .phase-row strong,
html:not([lang="zh-CN"]) .future-grid strong,
html:not([lang="zh-CN"]) .choice-grid strong,
html:not([lang="zh-CN"]) .architecture-stack .label,
html:not([lang="zh-CN"]) .boundary-row,
html:not([lang="zh-CN"]) .question-number,
html:not([lang="zh-CN"]) .case-related-qa h3,
html:not([lang="zh-CN"]) .qa-topic-card summary,
html:not([lang="zh-CN"]) .footer-brand span,
html:not([lang="zh-CN"]) .footer-link-group strong,
html:not([lang="zh-CN"]) .footer-col a,
html:not([lang="zh-CN"]) input,
html:not([lang="zh-CN"]) textarea,
html:not([lang="zh-CN"]) select {
  font-family: var(--font-text);
}

/* English font role refinement 20260615-font-english */
html:not([lang="zh-CN"]) h1,
html:not([lang="zh-CN"]) h2,
html:not([lang="zh-CN"]) h3,
html:not([lang="zh-CN"]) h4,
html:not([lang="zh-CN"]) h5,
html:not([lang="zh-CN"]) h6,
html:not([lang="zh-CN"]) .brand strong,
html:not([lang="zh-CN"]) .footer-brand strong {
  font-family: var(--font-brand);
}

html:not([lang="zh-CN"]) body,
html:not([lang="zh-CN"]) p,
html:not([lang="zh-CN"]) li,
html:not([lang="zh-CN"]) nav,
html:not([lang="zh-CN"]) .button,
html:not([lang="zh-CN"]) .brand small,
html:not([lang="zh-CN"]) .eyebrow,
html:not([lang="zh-CN"]) .section-kicker,
html:not([lang="zh-CN"]) .lead,
html:not([lang="zh-CN"]) .emphasis,
html:not([lang="zh-CN"]) .note,
html:not([lang="zh-CN"]) .diagram-note,
html:not([lang="zh-CN"]) .available-now,
html:not([lang="zh-CN"]) .map-layer,
html:not([lang="zh-CN"]) .visual-topline,
html:not([lang="zh-CN"]) .visual-node,
html:not([lang="zh-CN"]) .visual-boundary span,
html:not([lang="zh-CN"]) .module-strip span,
html:not([lang="zh-CN"]) .case-heading span,
html:not([lang="zh-CN"]) .overview-body article span,
html:not([lang="zh-CN"]) .position-grid span,
html:not([lang="zh-CN"]) .module-grid span,
html:not([lang="zh-CN"]) .doc-grid span,
html:not([lang="zh-CN"]) .service-card-grid article span,
html:not([lang="zh-CN"]) .qa-category-card span,
html:not([lang="zh-CN"]) .phase-row strong,
html:not([lang="zh-CN"]) .future-grid strong,
html:not([lang="zh-CN"]) .choice-grid strong,
html:not([lang="zh-CN"]) .architecture-stack .label,
html:not([lang="zh-CN"]) .boundary-row,
html:not([lang="zh-CN"]) .question-number,
html:not([lang="zh-CN"]) .qa-topic-card summary,
html:not([lang="zh-CN"]) .footer-brand span,
html:not([lang="zh-CN"]) .footer-link-group strong,
html:not([lang="zh-CN"]) .footer-col a,
html:not([lang="zh-CN"]) input,
html:not([lang="zh-CN"]) textarea,
html:not([lang="zh-CN"]) select {
  font-family: var(--font-text);
}

/* Institutional visual refinement 20260615-institutional */
:root {
  --paper: #f5f7f8;
  --surface: #ffffff;
  --panel: #edf2f4;
  --line: #d9e1e5;
  --ink: #10161b;
  --muted: #5f6870;
  --blue: #17384f;
  --teal: #1e6f68;
  --steel: #23313a;
  --slate: #32444f;
  --amber: #8b6a42;
  --measure: 760px;
  --wide: 1180px;
  --radius: 6px;
  --section-y: clamp(74px, 8vw, 118px);
  --section-x: max(24px, calc((100vw - var(--wide)) / 2));
  --card-pad: clamp(24px, 2.5vw, 34px);
}

body {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.55), rgba(245,247,248,0.92) 280px),
    var(--paper);
}

.site-header {
  min-height: 68px;
  padding-inline: var(--section-x);
  border-bottom-color: rgba(16, 22, 27, 0.08);
  background: rgba(245, 247, 248, 0.94);
}

nav {
  gap: 14px;
}

nav a,
.nav-menu summary {
  color: #4e5a63;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.55rem, 4.6vw, 4.15rem);
  line-height: 1.03;
}

h2 {
  max-width: 880px;
  font-size: clamp(1.85rem, 3vw, 2.85rem);
  line-height: 1.08;
}

h3 {
  line-height: 1.16;
}

.lead,
.emphasis,
.section > p:not(.section-kicker),
.wide-copy p,
.copy-stack p,
.answer-card p,
.qa-category-card p,
.question-explainer p,
.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.contact-card p {
  max-width: var(--measure);
  line-height: 1.72;
}

.section {
  padding: var(--section-y) var(--section-x);
  border-top: 1px solid rgba(16, 22, 27, 0.045);
}

main > .section:first-child,
main > .hero:first-child {
  border-top: 0;
}

.section-kicker,
.eyebrow {
  margin-bottom: 16px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.hero {
  padding-inline: var(--section-x);
}

main > .hero:first-child {
  grid-template-columns: minmax(460px, 0.98fr) minmax(390px, 1.02fr);
  gap: clamp(50px, 7vw, 96px);
  padding-top: clamp(64px, 7vw, 98px);
  padding-bottom: clamp(58px, 6vw, 88px);
}

main > .hero:first-child h1 {
  max-width: 760px;
  margin-bottom: 28px;
}

main > .hero:first-child .lead {
  max-width: 700px;
  margin-bottom: 22px;
}

main > .hero:first-child .emphasis {
  max-width: 680px;
}

main > .hero:first-child .hero-actions {
  margin-top: 34px;
}

main > .hero:first-child .available-now {
  max-width: 680px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(23, 56, 79, 0.12);
  color: #53606a;
}

.home-system-map {
  align-self: center;
  width: 100%;
  max-width: 620px;
  min-height: 0;
  padding: clamp(28px, 3vw, 38px);
  gap: 16px;
  border: 1px solid rgba(23, 56, 79, 0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(237,242,244,0.82)),
    linear-gradient(90deg, rgba(23,56,79,0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23,56,79,0.04) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  box-shadow: 0 24px 60px rgba(23, 56, 79, 0.10);
}

.home-system-map .map-layer {
  min-height: 62px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(23, 56, 79, 0.12);
}

.home-system-map .map-layer.focus {
  min-height: 88px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #255b69);
}

.home-system-map .map-layer.muted {
  color: var(--slate);
  background: rgba(255,255,255,0.82);
}

.home-system-map .map-layer.execution {
  color: #fff;
  background: #25323a;
}

.map-divider {
  height: 18px;
  border-left: 1px solid rgba(23, 56, 79, 0.24);
  justify-self: center;
}

.home-system-map .module-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 2px 0;
}

.home-system-map .module-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid rgba(23, 56, 79, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--slate);
  font-size: 12px;
  font-weight: 760;
  text-align: center;
  white-space: nowrap;
}

.home-system-map .execution-boundary {
  min-height: 50px;
  border: 1px solid rgba(31, 111, 104, 0.26);
  background: rgba(31, 111, 104, 0.10);
  color: var(--teal);
}

.home-system-map .diagram-note {
  max-width: none;
  margin: 4px 0 0;
  font-size: 13px;
}

.home-visual-map {
  display: none;
}

.position-grid,
.module-grid,
.doc-grid,
.pathway-grid,
.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list,
.related-grid,
.phase-row {
  gap: clamp(16px, 2vw, 24px);
}

.position-grid {
  padding: 0 var(--section-x) clamp(62px, 7vw, 96px);
}

.position-grid article,
.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  border-color: rgba(16, 22, 27, 0.075);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.88);
  box-shadow: 0 1px 0 rgba(16, 22, 27, 0.02);
}

.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  padding: var(--card-pad);
}

.service-card-grid article {
  min-height: 0;
}

.service-card-grid article h3,
.future-grid article strong,
.choice-grid article strong,
.qa-category-card strong {
  margin-bottom: 12px;
}

.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.qa-category-card p {
  margin-bottom: 16px;
}

.service-card-grid ul,
.qa-category-card ul,
.qa-category-card ol,
.detailed-answer ul,
.detailed-answer ol {
  line-height: 1.72;
}

.split-section,
.entry-grid,
.contact-layout,
.question-layout {
  gap: clamp(34px, 5vw, 72px);
}

.dark-section {
  color: #f6f8f9;
  background: linear-gradient(135deg, #172530, #203541);
}

.dark-section p,
.dark-section .section-kicker {
  color: rgba(246, 248, 249, 0.76);
}

.qa-cta,
.roadmap-preview {
  background: linear-gradient(180deg, rgba(237,242,244,0.84), rgba(255,255,255,0.52));
}

.button {
  border-radius: var(--radius);
}

.footer-contact-col,
.footer-contact-col .footer-cta {
  border-radius: var(--radius);
}

@media (max-width: 980px) {
  :root {
    --section-y: clamp(56px, 9vw, 82px);
    --section-x: clamp(20px, 5vw, 36px);
  }

  main > .hero:first-child,
  .hero,
  .split-section,
  .entry-grid,
  .contact-layout,
  .question-layout {
    grid-template-columns: 1fr;
  }

  .home-system-map {
    max-width: none;
  }
}

@media (max-width: 640px) {
  :root {
    --card-pad: 22px;
  }

  h1 {
    font-size: clamp(2.1rem, 11vw, 3rem);
  }

  h2 {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }

  main > .hero:first-child {
    padding-top: 48px;
    padding-bottom: 58px;
  }

  .home-system-map .module-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-system-map .module-strip span {
    white-space: normal;
  }

  .service-card-grid,
  .future-grid,
  .choice-grid,
  .qa-category-list,
  .module-grid,
  .doc-grid,
  .pathway-grid,
  .position-grid {
    grid-template-columns: 1fr;
  }
}

/* Institutional visual refinement 20260615-institutional */
:root {
  --paper: #f5f7f8;
  --surface: #ffffff;
  --panel: #edf2f4;
  --line: #d9e1e5;
  --ink: #10161b;
  --muted: #5f6870;
  --blue: #17384f;
  --teal: #1e6f68;
  --steel: #23313a;
  --slate: #32444f;
  --amber: #8b6a42;
  --measure: 760px;
  --wide: 1180px;
  --radius: 6px;
  --section-y: clamp(74px, 8vw, 118px);
  --section-x: max(24px, calc((100vw - var(--wide)) / 2));
  --card-pad: clamp(24px, 2.5vw, 34px);
}

body {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.55), rgba(245,247,248,0.92) 280px),
    var(--paper);
}

.site-header {
  min-height: 68px;
  padding-inline: var(--section-x);
  border-bottom-color: rgba(16, 22, 27, 0.08);
  background: rgba(245, 247, 248, 0.94);
}

nav {
  gap: 14px;
}

nav a,
.nav-menu summary {
  color: #4e5a63;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.55rem, 4.6vw, 4.15rem);
  line-height: 1.03;
}

h2 {
  max-width: 880px;
  font-size: clamp(1.85rem, 3vw, 2.85rem);
  line-height: 1.08;
}

h3 {
  line-height: 1.16;
}

.lead,
.emphasis,
.section > p:not(.section-kicker),
.wide-copy p,
.copy-stack p,
.answer-card p,
.qa-category-card p,
.question-explainer p,
.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.contact-card p {
  max-width: var(--measure);
  line-height: 1.72;
}

.section {
  padding: var(--section-y) var(--section-x);
  border-top: 1px solid rgba(16, 22, 27, 0.045);
}

main > .section:first-child,
main > .hero:first-child {
  border-top: 0;
}

.section-kicker,
.eyebrow {
  margin-bottom: 16px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.hero {
  padding-inline: var(--section-x);
}

main > .hero:first-child {
  grid-template-columns: minmax(460px, 0.98fr) minmax(390px, 1.02fr);
  gap: clamp(50px, 7vw, 96px);
  padding-top: clamp(64px, 7vw, 98px);
  padding-bottom: clamp(58px, 6vw, 88px);
}

main > .hero:first-child h1 {
  max-width: 760px;
  margin-bottom: 28px;
}

main > .hero:first-child .lead {
  max-width: 700px;
  margin-bottom: 22px;
}

main > .hero:first-child .emphasis {
  max-width: 680px;
}

main > .hero:first-child .hero-actions {
  margin-top: 34px;
}

main > .hero:first-child .available-now {
  max-width: 680px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(23, 56, 79, 0.12);
  color: #53606a;
}

.home-system-map {
  align-self: center;
  width: 100%;
  max-width: 620px;
  min-height: 0;
  padding: clamp(28px, 3vw, 38px);
  gap: 16px;
  border: 1px solid rgba(23, 56, 79, 0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(237,242,244,0.82)),
    linear-gradient(90deg, rgba(23,56,79,0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23,56,79,0.04) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  box-shadow: 0 24px 60px rgba(23, 56, 79, 0.10);
}

.home-system-map .map-layer {
  min-height: 62px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(23, 56, 79, 0.12);
}

.home-system-map .map-layer.focus {
  min-height: 88px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #255b69);
}

.home-system-map .map-layer.muted {
  color: var(--slate);
  background: rgba(255,255,255,0.82);
}

.home-system-map .map-layer.execution {
  color: #fff;
  background: #25323a;
}

.map-divider {
  height: 18px;
  border-left: 1px solid rgba(23, 56, 79, 0.24);
  justify-self: center;
}

.home-system-map .module-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 2px 0;
}

.home-system-map .module-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid rgba(23, 56, 79, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--slate);
  font-size: 12px;
  font-weight: 760;
  text-align: center;
  white-space: nowrap;
}

.home-system-map .execution-boundary {
  min-height: 50px;
  border: 1px solid rgba(31, 111, 104, 0.26);
  background: rgba(31, 111, 104, 0.10);
  color: var(--teal);
}

.home-system-map .diagram-note {
  max-width: none;
  margin: 4px 0 0;
  font-size: 13px;
}

.home-visual-map {
  display: none;
}

.position-grid,
.module-grid,
.doc-grid,
.pathway-grid,
.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list,
.related-grid,
.phase-row {
  gap: clamp(16px, 2vw, 24px);
}

.position-grid {
  padding: 0 var(--section-x) clamp(62px, 7vw, 96px);
}

.position-grid article,
.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  border-color: rgba(16, 22, 27, 0.075);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.88);
  box-shadow: 0 1px 0 rgba(16, 22, 27, 0.02);
}

.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  padding: var(--card-pad);
}

.service-card-grid article {
  min-height: 0;
}

.service-card-grid article h3,
.future-grid article strong,
.choice-grid article strong,
.qa-category-card strong {
  margin-bottom: 12px;
}

.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.qa-category-card p {
  margin-bottom: 16px;
}

.service-card-grid ul,
.qa-category-card ul,
.qa-category-card ol,
.detailed-answer ul,
.detailed-answer ol {
  line-height: 1.72;
}

.split-section,
.entry-grid,
.contact-layout,
.question-layout {
  gap: clamp(34px, 5vw, 72px);
}

.dark-section {
  color: #f6f8f9;
  background: linear-gradient(135deg, #172530, #203541);
}

.dark-section p,
.dark-section .section-kicker {
  color: rgba(246, 248, 249, 0.76);
}

.qa-cta,
.roadmap-preview {
  background: linear-gradient(180deg, rgba(237,242,244,0.84), rgba(255,255,255,0.52));
}

.button {
  border-radius: var(--radius);
}

.footer-contact-col,
.footer-contact-col .footer-cta {
  border-radius: var(--radius);
}

@media (max-width: 980px) {
  :root {
    --section-y: clamp(56px, 9vw, 82px);
    --section-x: clamp(20px, 5vw, 36px);
  }

  main > .hero:first-child,
  .hero,
  .split-section,
  .entry-grid,
  .contact-layout,
  .question-layout {
    grid-template-columns: 1fr;
  }

  .home-system-map {
    max-width: none;
  }
}

@media (max-width: 640px) {
  :root {
    --card-pad: 22px;
  }

  h1 {
    font-size: clamp(2.1rem, 11vw, 3rem);
  }

  h2 {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }

  main > .hero:first-child {
    padding-top: 48px;
    padding-bottom: 58px;
  }

  .home-system-map .module-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-system-map .module-strip span {
    white-space: normal;
  }

  .service-card-grid,
  .future-grid,
  .choice-grid,
  .qa-category-list,
  .module-grid,
  .doc-grid,
  .pathway-grid,
  .position-grid {
    grid-template-columns: 1fr;
  }
}

/* Institutional visual refinement 20260615-institutional */
:root {
  --paper: #f5f7f8;
  --surface: #ffffff;
  --panel: #edf2f4;
  --line: #d9e1e5;
  --ink: #10161b;
  --muted: #5f6870;
  --blue: #17384f;
  --teal: #1e6f68;
  --steel: #23313a;
  --slate: #32444f;
  --amber: #8b6a42;
  --measure: 760px;
  --wide: 1180px;
  --radius: 6px;
  --section-y: clamp(74px, 8vw, 118px);
  --section-x: max(24px, calc((100vw - var(--wide)) / 2));
  --card-pad: clamp(24px, 2.5vw, 34px);
}

body {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.55), rgba(245,247,248,0.92) 280px),
    var(--paper);
}

.site-header {
  min-height: 68px;
  padding-inline: var(--section-x);
  border-bottom-color: rgba(16, 22, 27, 0.08);
  background: rgba(245, 247, 248, 0.94);
}

nav {
  gap: 14px;
}

nav a,
.nav-menu summary {
  color: #4e5a63;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.55rem, 4.6vw, 4.15rem);
  line-height: 1.03;
}

h2 {
  max-width: 880px;
  font-size: clamp(1.85rem, 3vw, 2.85rem);
  line-height: 1.08;
}

h3 {
  line-height: 1.16;
}

.lead,
.emphasis,
.section > p:not(.section-kicker),
.wide-copy p,
.copy-stack p,
.answer-card p,
.qa-category-card p,
.question-explainer p,
.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.contact-card p {
  max-width: var(--measure);
  line-height: 1.72;
}

.section {
  padding: var(--section-y) var(--section-x);
  border-top: 1px solid rgba(16, 22, 27, 0.045);
}

main > .section:first-child,
main > .hero:first-child {
  border-top: 0;
}

.section-kicker,
.eyebrow {
  margin-bottom: 16px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.hero {
  padding-inline: var(--section-x);
}

main > .hero:first-child {
  grid-template-columns: minmax(460px, 0.98fr) minmax(390px, 1.02fr);
  gap: clamp(50px, 7vw, 96px);
  padding-top: clamp(64px, 7vw, 98px);
  padding-bottom: clamp(58px, 6vw, 88px);
}

main > .hero:first-child h1 {
  max-width: 760px;
  margin-bottom: 28px;
}

main > .hero:first-child .lead {
  max-width: 700px;
  margin-bottom: 22px;
}

main > .hero:first-child .emphasis {
  max-width: 680px;
}

main > .hero:first-child .hero-actions {
  margin-top: 34px;
}

main > .hero:first-child .available-now {
  max-width: 680px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(23, 56, 79, 0.12);
  color: #53606a;
}

.home-system-map {
  align-self: center;
  width: 100%;
  max-width: 620px;
  min-height: 0;
  padding: clamp(28px, 3vw, 38px);
  gap: 16px;
  border: 1px solid rgba(23, 56, 79, 0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(237,242,244,0.82)),
    linear-gradient(90deg, rgba(23,56,79,0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23,56,79,0.04) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  box-shadow: 0 24px 60px rgba(23, 56, 79, 0.10);
}

.home-system-map .map-layer {
  min-height: 62px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(23, 56, 79, 0.12);
}

.home-system-map .map-layer.focus {
  min-height: 88px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #255b69);
}

.home-system-map .map-layer.muted {
  color: var(--slate);
  background: rgba(255,255,255,0.82);
}

.home-system-map .map-layer.execution {
  color: #fff;
  background: #25323a;
}

.map-divider {
  height: 18px;
  border-left: 1px solid rgba(23, 56, 79, 0.24);
  justify-self: center;
}

.home-system-map .module-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 2px 0;
}

.home-system-map .module-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid rgba(23, 56, 79, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--slate);
  font-size: 12px;
  font-weight: 760;
  text-align: center;
  white-space: nowrap;
}

.home-system-map .execution-boundary {
  min-height: 50px;
  border: 1px solid rgba(31, 111, 104, 0.26);
  background: rgba(31, 111, 104, 0.10);
  color: var(--teal);
}

.home-system-map .diagram-note {
  max-width: none;
  margin: 4px 0 0;
  font-size: 13px;
}

.home-visual-map {
  display: none;
}

.position-grid,
.module-grid,
.doc-grid,
.pathway-grid,
.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list,
.related-grid,
.phase-row {
  gap: clamp(16px, 2vw, 24px);
}

.position-grid {
  padding: 0 var(--section-x) clamp(62px, 7vw, 96px);
}

.position-grid article,
.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  border-color: rgba(16, 22, 27, 0.075);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.88);
  box-shadow: 0 1px 0 rgba(16, 22, 27, 0.02);
}

.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  padding: var(--card-pad);
}

.service-card-grid article {
  min-height: 0;
}

.service-card-grid article h3,
.future-grid article strong,
.choice-grid article strong,
.qa-category-card strong {
  margin-bottom: 12px;
}

.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.qa-category-card p {
  margin-bottom: 16px;
}

.service-card-grid ul,
.qa-category-card ul,
.qa-category-card ol,
.detailed-answer ul,
.detailed-answer ol {
  line-height: 1.72;
}

.split-section,
.entry-grid,
.contact-layout,
.question-layout {
  gap: clamp(34px, 5vw, 72px);
}

.dark-section {
  color: #f6f8f9;
  background: linear-gradient(135deg, #172530, #203541);
}

.dark-section p,
.dark-section .section-kicker {
  color: rgba(246, 248, 249, 0.76);
}

.qa-cta,
.roadmap-preview {
  background: linear-gradient(180deg, rgba(237,242,244,0.84), rgba(255,255,255,0.52));
}

.button {
  border-radius: var(--radius);
}

.footer-contact-col,
.footer-contact-col .footer-cta {
  border-radius: var(--radius);
}

@media (max-width: 980px) {
  :root {
    --section-y: clamp(56px, 9vw, 82px);
    --section-x: clamp(20px, 5vw, 36px);
  }

  main > .hero:first-child,
  .hero,
  .split-section,
  .entry-grid,
  .contact-layout,
  .question-layout {
    grid-template-columns: 1fr;
  }

  .home-system-map {
    max-width: none;
  }
}

@media (max-width: 640px) {
  :root {
    --card-pad: 22px;
  }

  h1 {
    font-size: clamp(2.1rem, 11vw, 3rem);
  }

  h2 {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }

  main > .hero:first-child {
    padding-top: 48px;
    padding-bottom: 58px;
  }

  .home-system-map .module-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-system-map .module-strip span {
    white-space: normal;
  }

  .service-card-grid,
  .future-grid,
  .choice-grid,
  .qa-category-list,
  .module-grid,
  .doc-grid,
  .pathway-grid,
  .position-grid {
    grid-template-columns: 1fr;
  }
}

/* Institutional visual refinement 20260615-institutional */
:root {
  --paper: #f5f7f8;
  --surface: #ffffff;
  --panel: #edf2f4;
  --line: #d9e1e5;
  --ink: #10161b;
  --muted: #5f6870;
  --blue: #17384f;
  --teal: #1e6f68;
  --steel: #23313a;
  --slate: #32444f;
  --amber: #8b6a42;
  --measure: 760px;
  --wide: 1180px;
  --radius: 6px;
  --section-y: clamp(74px, 8vw, 118px);
  --section-x: max(24px, calc((100vw - var(--wide)) / 2));
  --card-pad: clamp(24px, 2.5vw, 34px);
}

body {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.55), rgba(245,247,248,0.92) 280px),
    var(--paper);
}

.site-header {
  min-height: 68px;
  padding-inline: var(--section-x);
  border-bottom-color: rgba(16, 22, 27, 0.08);
  background: rgba(245, 247, 248, 0.94);
}

nav {
  gap: 14px;
}

nav a,
.nav-menu summary {
  color: #4e5a63;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.55rem, 4.6vw, 4.15rem);
  line-height: 1.03;
}

h2 {
  max-width: 880px;
  font-size: clamp(1.85rem, 3vw, 2.85rem);
  line-height: 1.08;
}

h3 {
  line-height: 1.16;
}

.lead,
.emphasis,
.section > p:not(.section-kicker),
.wide-copy p,
.copy-stack p,
.answer-card p,
.qa-category-card p,
.question-explainer p,
.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.contact-card p {
  max-width: var(--measure);
  line-height: 1.72;
}

.section {
  padding: var(--section-y) var(--section-x);
  border-top: 1px solid rgba(16, 22, 27, 0.045);
}

main > .section:first-child,
main > .hero:first-child {
  border-top: 0;
}

.section-kicker,
.eyebrow {
  margin-bottom: 16px;
  color: var(--teal);
  letter-spacing: 0.08em;
}

.hero {
  padding-inline: var(--section-x);
}

main > .hero:first-child {
  grid-template-columns: minmax(460px, 0.98fr) minmax(390px, 1.02fr);
  gap: clamp(50px, 7vw, 96px);
  padding-top: clamp(64px, 7vw, 98px);
  padding-bottom: clamp(58px, 6vw, 88px);
}

main > .hero:first-child h1 {
  max-width: 760px;
  margin-bottom: 28px;
}

main > .hero:first-child .lead {
  max-width: 700px;
  margin-bottom: 22px;
}

main > .hero:first-child .emphasis {
  max-width: 680px;
}

main > .hero:first-child .hero-actions {
  margin-top: 34px;
}

main > .hero:first-child .available-now {
  max-width: 680px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(23, 56, 79, 0.12);
  color: #53606a;
}

.home-system-map {
  align-self: center;
  width: 100%;
  max-width: 620px;
  min-height: 0;
  padding: clamp(28px, 3vw, 38px);
  gap: 16px;
  border: 1px solid rgba(23, 56, 79, 0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(237,242,244,0.82)),
    linear-gradient(90deg, rgba(23,56,79,0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23,56,79,0.04) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  box-shadow: 0 24px 60px rgba(23, 56, 79, 0.10);
}

.home-system-map .map-layer {
  min-height: 62px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(23, 56, 79, 0.12);
}

.home-system-map .map-layer.focus {
  min-height: 88px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #255b69);
}

.home-system-map .map-layer.muted {
  color: var(--slate);
  background: rgba(255,255,255,0.82);
}

.home-system-map .map-layer.execution {
  color: #fff;
  background: #25323a;
}

.map-divider {
  height: 18px;
  border-left: 1px solid rgba(23, 56, 79, 0.24);
  justify-self: center;
}

.home-system-map .module-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 2px 0;
}

.home-system-map .module-strip span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid rgba(23, 56, 79, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--slate);
  font-size: 12px;
  font-weight: 760;
  text-align: center;
  white-space: nowrap;
}

.home-system-map .execution-boundary {
  min-height: 50px;
  border: 1px solid rgba(31, 111, 104, 0.26);
  background: rgba(31, 111, 104, 0.10);
  color: var(--teal);
}

.home-system-map .diagram-note {
  max-width: none;
  margin: 4px 0 0;
  font-size: 13px;
}

.home-visual-map {
  display: none;
}

.position-grid,
.module-grid,
.doc-grid,
.pathway-grid,
.service-card-grid,
.future-grid,
.choice-grid,
.qa-category-list,
.related-grid,
.phase-row {
  gap: clamp(16px, 2vw, 24px);
}

.position-grid {
  padding: 0 var(--section-x) clamp(62px, 7vw, 96px);
}

.position-grid article,
.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  border-color: rgba(16, 22, 27, 0.075);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.88);
  box-shadow: 0 1px 0 rgba(16, 22, 27, 0.02);
}

.module-grid article,
.doc-grid article,
.pathway-grid article,
.entry-grid article,
.contact-card,
.service-card-grid article,
.future-grid article,
.choice-grid article,
.qa-category-card,
.answer-card,
.question-side,
.related-grid a {
  padding: var(--card-pad);
}

.service-card-grid article {
  min-height: 0;
}

.service-card-grid article h3,
.future-grid article strong,
.choice-grid article strong,
.qa-category-card strong {
  margin-bottom: 12px;
}

.service-card-grid article p,
.future-grid article p,
.choice-grid article span,
.qa-category-card p {
  margin-bottom: 16px;
}

.service-card-grid ul,
.qa-category-card ul,
.qa-category-card ol,
.detailed-answer ul,
.detailed-answer ol {
  line-height: 1.72;
}

.split-section,
.entry-grid,
.contact-layout,
.question-layout {
  gap: clamp(34px, 5vw, 72px);
}

.dark-section {
  color: #f6f8f9;
  background: linear-gradient(135deg, #172530, #203541);
}

.dark-section p,
.dark-section .section-kicker {
  color: rgba(246, 248, 249, 0.76);
}

.qa-cta,
.roadmap-preview {
  background: linear-gradient(180deg, rgba(237,242,244,0.84), rgba(255,255,255,0.52));
}

.button {
  border-radius: var(--radius);
}

.footer-contact-col,
.footer-contact-col .footer-cta {
  border-radius: var(--radius);
}

@media (max-width: 980px) {
  :root {
    --section-y: clamp(56px, 9vw, 82px);
    --section-x: clamp(20px, 5vw, 36px);
  }

  main > .hero:first-child,
  .hero,
  .split-section,
  .entry-grid,
  .contact-layout,
  .question-layout {
    grid-template-columns: 1fr;
  }

  .home-system-map {
    max-width: none;
  }
}

@media (max-width: 640px) {
  :root {
    --card-pad: 22px;
  }

  h1 {
    font-size: clamp(2.1rem, 11vw, 3rem);
  }

  h2 {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }

  main > .hero:first-child {
    padding-top: 48px;
    padding-bottom: 58px;
  }

  .home-system-map .module-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .home-system-map .module-strip span {
    white-space: normal;
  }

  .service-card-grid,
  .future-grid,
  .choice-grid,
  .qa-category-list,
  .module-grid,
  .doc-grid,
  .pathway-grid,
  .position-grid {
    grid-template-columns: 1fr;
  }
}