/* ============================================================
   KJ Cultura — Shared Design System
   五行取色 · 火 朱砂 #9E2B25（主，文化传播）
             土 赭石 #8A6A45（辅，教育承载）
             金 宣纸 #F9F8F6（底）· 暖灰 #E2DDD4（界线）
             水 玄墨 #2A211D（深色区与标题）· #3A3430（正文）
   ============================================================ */

:root {
  --cinnabar: #9E2B25;
  --cinnabar-light: #B7403A;
  --ochre: #8A6A45;
  --ink-deep: #2A211D;
  --cream: #F9F8F6;
  --slate: #3A3430;
  --border: #E2DDD4;
  --muted: #6E655C;
  --serif: 'Playfair Display', 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--slate);
  background-color: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================================
   Typography
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

/* Main titles carry the seal red; smaller headings stay ink, so the red reads
   as an accent rather than a field. */
h1, h2 {
  color: var(--cinnabar);
}

h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 2vw, 1.8rem); }
h4 { font-size: 1.25rem; }

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--slate);
}

.text-muted {
  color: var(--muted);
}

.text-cinnabar {
  color: var(--cinnabar);
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ochre);
  margin-bottom: 1.25rem;
  display: inline-block;
}

/* ============================================================
   Layout
   ============================================================ */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 7rem 0;
}

section[id] {
  scroll-margin-top: 90px;
}

.section-title {
  margin-bottom: 3.5rem;
}

.section-title h2 {
  margin-bottom: 1rem;
}

.section-title p {
  max-width: 560px;
  color: var(--muted);
}

/* ============================================================
   Header / Navigation
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--cream);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-brand {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--cinnabar);
  letter-spacing: -0.01em;
}

.nav-brand span {
  font-style: italic;
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--slate);
  position: relative;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cinnabar);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--cinnabar);
}

.nav-cta {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav-cta:hover {
  background-color: var(--cinnabar);
  color: var(--cream);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background-color: var(--cinnabar);
  transition: all 0.3s ease;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--cinnabar);
  color: var(--cream);
  border-color: var(--cinnabar);
}

.btn-primary:hover {
  background-color: var(--cinnabar-light);
  border-color: var(--cinnabar-light);
}

.btn-outline {
  background-color: transparent;
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

.btn-outline:hover {
  background-color: var(--cinnabar);
  color: var(--cream);
}

.btn-outline-light {
  background-color: transparent;
  color: var(--cream);
  border-color: rgba(249, 248, 246, 0.5);
}

.btn-outline-light:hover {
  background-color: var(--cream);
  color: var(--cinnabar);
}

.btn-link {
  padding: 0;
  background: none;
  color: var(--cinnabar);
  font-weight: 500;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--cinnabar);
  padding-bottom: 2px;
  border-radius: 0;
}

.btn-link:hover {
  gap: 0.75rem;
}

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  padding: 8rem 0 9rem;
  background-color: var(--cream);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 900px;
}

.hero h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 500;
  line-height: 1;
}

.hero h1 .serif-italic {
  font-style: italic;
  font-weight: 400;
}

.hero-tagline {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-style: italic;
  font-weight: 400;
  color: var(--muted);
  margin-bottom: 2.5rem;
  line-height: 1.35;
}

.hero-desc {
  max-width: 600px;
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 3rem;
  line-height: 1.75;
}

/* ============================================================
   Pillars / Card Grid
   ============================================================ */

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--border);
}

/* Four-practice grid (homepage — the four business lines) */
.pillars-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
}

.pillars-grid-4 .pillar-card {
  padding: 3rem 1.75rem;
}

.pillars-grid-4 .pillar-card h3 {
  font-size: 1.25rem;
}

.pillars-grid-4 .pillar-card p {
  font-size: 0.9rem;
}

.pillar-card {
  padding: 3.5rem 2.5rem;
  border-right: 1px solid var(--border);
  transition: background-color 0.3s ease;
  position: relative;
}

.pillar-card:last-child {
  border-right: none;
}

.pillar-card:hover {
  background-color: rgba(158, 43, 37, 0.03);
}

.pillar-number {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: block;
}

.pillar-card h3 {
  margin-bottom: 1.25rem;
  line-height: 1.25;
}

.pillar-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.pillar-card .btn-link {
  font-size: 0.85rem;
}

/* ============================================================
   Methodology / Dark Section
   ============================================================ */

.methodology {
  background-color: var(--ink-deep);
  color: var(--cream);
}

.methodology .eyebrow {
  color: rgba(249, 248, 246, 0.5);
}

.methodology h2 {
  color: var(--cream);
  margin-bottom: 1.5rem;
}

.methodology p {
  color: rgba(249, 248, 246, 0.75);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.methodology-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.workflow {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 1px solid rgba(249, 248, 246, 0.15);
}

.workflow-step:first-child {
  padding-top: 0;
}

.workflow-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.workflow-number {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 400;
  font-style: italic;
  color: var(--cream);
  min-width: 60px;
  opacity: 0.6;
}

.workflow-step h4 {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--cream);
  margin-bottom: 0.4rem;
  font-weight: 500;
}

.workflow-step p {
  font-size: 0.85rem;
  color: rgba(249, 248, 246, 0.6);
  margin: 0;
  line-height: 1.6;
}

/* ============================================================
   Insights / Blog Grid
   ============================================================ */

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.insight-card {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  transition: transform 0.3s ease;
}

.insight-card:hover {
  transform: translateY(-4px);
}

.insight-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.insight-category {
  font-weight: 500;
  color: var(--ochre);
}

.insight-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.insight-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.insight-card .btn-link {
  font-size: 0.8rem;
}

/* ============================================================
   Contact CTA Block
   ============================================================ */

.contact-cta {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 0;
}

.contact-cta-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.contact-cta h2 {
  margin-bottom: 1rem;
}

.contact-cta .section-desc {
  color: var(--muted);
  line-height: 1.75;
}

.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  background-color: var(--cream);
  color: var(--slate);
  border-radius: 2px;
  transition: border-color 0.2s ease;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cinnabar);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.inquiry-form .btn-primary {
  align-self: flex-start;
  padding: 0.95rem 2.5rem;
  margin-top: 0.5rem;
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  background-color: var(--cream);
  padding: 4rem 0 3rem;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 320px;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-col h5 {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ochre);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--slate);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ============================================================
   Page Header (Interior Pages)
   ============================================================ */

.page-header {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border);
  background-color: var(--cream);
}

.page-header-inner {
  max-width: 780px;
}

.page-header h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 5vw, 4.5rem);
}

.page-header .intro {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.page-header p.lead {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ============================================================
   Filter Tabs
   ============================================================ */

.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 1.5rem;
}

.filter-tabs {
  display: flex;
  gap: 0;
  list-style: none;
}

.filter-tabs button {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-right: none;
  background-color: transparent;
  transition: all 0.2s ease;
}

.filter-tabs li:first-child button {
  border-radius: 2px 0 0 2px;
}

.filter-tabs li:last-child button {
  border-right: 1px solid var(--border);
  border-radius: 0 2px 2px 0;
}

.filter-tabs button:hover {
  color: var(--cinnabar);
}

.filter-tabs button.active {
  background-color: var(--cinnabar);
  color: var(--cream);
  border-color: var(--cinnabar);
}

.result-count {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ============================================================
   Research / Publications List
   ============================================================ */

.publications-list {
  display: flex;
  flex-direction: column;
}

.publication-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 2.5rem;
  align-items: start;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}

.publication-item:hover {
  background-color: rgba(158, 43, 37, 0.02);
  margin: 0 -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.pub-year {
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--cinnabar);
  font-style: italic;
  line-height: 1;
}

.pub-content h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.pub-meta {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pub-meta .pub-type {
  color: var(--ochre);
  font-weight: 500;
}

.pub-content p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

.pub-action {
  align-self: center;
}

/* ============================================================
   Program Blocks (Curriculum / Academy)
   ============================================================ */

.program-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  padding: 6rem 0;
  border-bottom: 1px solid var(--border);
}

.program-block:last-child {
  border-bottom: none;
}

.program-block.reverse .program-content {
  order: 2;
}

.program-block.reverse .program-visual {
  order: 1;
}

.program-content .eyebrow {
  margin-bottom: 1rem;
}

.program-content h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.program-content p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.program-features {
  list-style: none;
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.program-features li {
  font-size: 0.9rem;
  color: var(--slate);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.5;
}

.program-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 1px;
  background-color: var(--cinnabar);
}

.program-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  border: 1px solid var(--border);
  background-color: rgba(158, 43, 37, 0.02);
  position: relative;
  overflow: hidden;
}

.program-visual-inner {
  text-align: center;
  padding: 3rem;
}

.program-visual-icon {
  font-family: var(--serif);
  font-size: 4rem;
  font-weight: 400;
  font-style: italic;
  color: var(--cinnabar);
  margin-bottom: 1rem;
  opacity: 0.4;
}

.program-visual-label {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================================
   About Page
   ============================================================ */

.about-lead {
  padding: 7rem 0;
  border-bottom: 1px solid var(--border);
}

.about-lead-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
}

.about-lead-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ochre);
}

.about-lead-text p {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  line-height: 1.5;
  color: var(--cinnabar);
  font-weight: 400;
}

.about-lead-text p em {
  font-style: italic;
}

.values-section {
  padding: 7rem 0;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}

.value-card {
  padding: 3rem 2.5rem;
  border-right: 1px solid var(--border);
}

.value-card:last-child {
  border-right: none;
}

.value-card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
}

.network-section {
  background-color: var(--ink-deep);
  color: var(--cream);
  padding: 7rem 0;
}

.network-section h2 {
  color: var(--cream);
  margin-bottom: 1.5rem;
}

.network-section .eyebrow {
  color: rgba(249, 248, 246, 0.5);
}

.network-section > .container > p {
  color: rgba(249, 248, 246, 0.75);
  max-width: 600px;
  margin-bottom: 4rem;
  line-height: 1.8;
}

.network-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid rgba(249, 248, 246, 0.2);
  border-left: 1px solid rgba(249, 248, 246, 0.2);
}

.network-item {
  padding: 2rem 1.5rem;
  border-right: 1px solid rgba(249, 248, 246, 0.2);
  border-bottom: 1px solid rgba(249, 248, 246, 0.2);
  font-size: 0.85rem;
  color: rgba(249, 248, 246, 0.8);
  line-height: 1.5;
}

/* ============================================================
   Contact Page
   ============================================================ */

.contact-page {
  padding: 7rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem;
}

.contact-info h2 {
  margin-bottom: 1.5rem;
}

.contact-info p.lead {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 3rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-detail {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.contact-detail:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-detail h4 {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ochre);
  margin-bottom: 0.75rem;
}

.contact-detail p {
  font-size: 1rem;
  color: var(--slate);
  line-height: 1.6;
}

.contact-detail a {
  color: var(--cinnabar);
  border-bottom: 1px solid var(--cinnabar);
  padding-bottom: 1px;
}

/* ============================================================
   Stat Row
   ============================================================ */

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-left: none;
  border-right: none;
}

.stat-item {
  padding: 3rem 2rem;
  text-align: left;
  border-left: 1px solid var(--border);
}

.stat-item:first-child {
  border-left: none;
}

.stat-number {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 500;
  color: var(--cinnabar);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1024px) {
  .pillars-grid,
  .insights-grid,
  .values-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pillar-card:nth-child(2) {
    border-right: none;
  }

  .pillar-card:nth-child(3) {
    grid-column: span 2;
    border-top: 1px solid var(--border);
  }

  .pillars-grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .pillars-grid-4 .pillar-card:nth-child(2) {
    border-right: 1px solid var(--border);
  }

  .pillars-grid-4 .pillar-card:nth-child(3) {
    grid-column: auto;
    border-top: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }

  .pillars-grid-4 .pillar-card:nth-child(4) {
    border-top: 1px solid var(--border);
    border-right: none;
  }

  .methodology-grid,
  .contact-cta-grid,
  .program-block,
  .contact-grid,
  .about-lead-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .program-block.reverse .program-content {
    order: 1;
  }

  .program-block.reverse .program-visual {
    order: 2;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-item:nth-child(3) {
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .stat-item:nth-child(4) {
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 768px) {
  section {
    padding: 5rem 0;
  }

  .hero {
    padding: 5rem 0 6rem;
  }

  .container {
    padding: 0 1.25rem;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .pillars-grid,
  .insights-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .pillar-card,
  .pillar-card:nth-child(2) {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .pillar-card:last-child,
  .value-card:last-child {
    border-bottom: none;
  }

  .pillar-card:nth-child(3) {
    grid-column: auto;
    border-top: none;
  }

  .pillars-grid-4 {
    grid-template-columns: 1fr;
  }

  .pillars-grid-4 .pillar-card,
  .pillars-grid-4 .pillar-card:nth-child(2),
  .pillars-grid-4 .pillar-card:nth-child(3),
  .pillars-grid-4 .pillar-card:nth-child(4) {
    grid-column: auto;
    border-right: none;
    border-top: none;
    border-bottom: 1px solid var(--border);
  }

  .pillars-grid-4 .pillar-card:last-child {
    border-bottom: none;
  }

  .value-card {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .publication-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pub-year {
    font-size: 1.5rem;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-header {
    padding: 4rem 0 3.5rem;
  }

  .workflow-step {
    gap: 1.25rem;
  }

  .workflow-number {
    font-size: 1.8rem;
    min-width: 40px;
  }
}

/* ============================================================
   Cover Page — Dynamic Landing
   ============================================================ */

.cover-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--cream);
  padding: 2rem;
}

.cover-page::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80vw;
  height: 80vw;
  max-width: 800px;
  max-height: 800px;
  background: radial-gradient(circle, rgba(158, 43, 37, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: coverFloat 20s ease-in-out infinite;
}

.cover-page::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -20%;
  width: 60vw;
  height: 60vw;
  max-width: 600px;
  max-height: 600px;
  background: radial-gradient(circle, rgba(158, 43, 37, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  animation: coverFloat 25s ease-in-out infinite reverse;
}

@keyframes coverFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.98); }
}

.cover-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.cover-eyebrow {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-eyebrow.cover-visible {
  opacity: 1;
}

.cover-title {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 500;
  line-height: 1.05;
  color: var(--cinnabar);
  margin-bottom: 1.5rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-title.cover-visible {
  opacity: 1;
}

.cover-title .serif-italic {
  font-style: italic;
  font-weight: 400;
}

.cover-tagline {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-style: italic;
  font-weight: 400;
  color: var(--cinnabar-light);
  margin-bottom: 2rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-tagline.cover-visible {
  opacity: 1;
}

.cover-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 3rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-desc.cover-visible {
  opacity: 1;
}

.cover-pillars {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-pillars.cover-visible {
  opacity: 1;
}

.cover-pillar {
  padding: 1.25rem 2rem;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.cover-pillar:hover {
  border-color: var(--cinnabar);
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(158, 43, 37, 0.08);
}

.cover-pillar-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.cover-pillar-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--cinnabar);
}

.cover-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-actions.cover-visible {
  opacity: 1;
}

.cover-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  transition: opacity 10s ease-in-out;
}

.cover-scroll-hint.cover-visible {
  opacity: 1;
}

.cover-scroll-hint span {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.cover-scroll-line {
  width: 1px;
  height: 40px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.cover-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--cinnabar);
  animation: coverScrollLine 2s ease-in-out infinite;
}

@keyframes coverScrollLine {
  0% { top: -100%; }
  50% { top: 100%; }
  100% { top: 100%; }
}

@keyframes coverFadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes coverFadeInLeft {
  from {
    opacity: 0;
    filter: blur(12px);
  }
  to {
    opacity: 1;
    filter: blur(0);
  }
}

@keyframes coverFadeInRight {
  from {
    opacity: 0;
    filter: blur(12px);
  }
  to {
    opacity: 1;
    filter: blur(0);
  }
}

/* Language switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.lang-switch:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.lang-switch .lang-active {
  color: var(--cinnabar);
  font-weight: 600;
}

.lang-switch .lang-sep {
  color: var(--border);
}

/* ============================================================
   Visual Enhancement — Service Blocks & Animations
   ============================================================ */

/* Service block title with decorative left line */
.program-content h2 {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.25;
}

.program-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 3px;
  height: 1.2em;
  background: var(--cinnabar);
  border-radius: 2px;
}

/* Alternating background for service blocks */
.program-block:nth-child(even) {
  background: rgba(158, 43, 37, 0.015);
}

/* Service block hover lift */
.program-block {
  transition: background 0.4s ease;
}

.program-block:hover {
  background: rgba(158, 43, 37, 0.025);
}

/* Enhanced feature list */
.program-features {
  margin: 1.75rem 0;
  padding-left: 0;
  list-style: none;
}

.program-features li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--slate);
  border-bottom: 1px solid rgba(226, 221, 212, 0.5);
  transition: padding-left 0.3s ease, color 0.3s ease;
}

.program-features li:last-child {
  border-bottom: none;
}

.program-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--cinnabar);
  border-radius: 50%;
  opacity: 0.6;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.program-features li:hover {
  padding-left: 1.75rem;
  color: var(--cinnabar);
}

.program-features li:hover::before {
  opacity: 1;
  transform: translateY(-50%) scale(1.3);
}

/* Enhanced buttons */
.btn {
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn:hover::after {
  width: 300px;
  height: 300px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(158, 43, 37, 0.2);
}

.btn-outline:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(158, 43, 37, 0.1);
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Page header enhancement */
.page-header {
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(158, 43, 37, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-header h1 {
  position: relative;
  font-size: clamp(2rem, 5vw, 3.2rem);
}

/* Pillar card enhancement */
.pillar-card {
  position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cinnabar);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(158, 43, 37, 0.08);
  border-color: rgba(158, 43, 37, 0.2);
}

.pillar-card:hover::before {
  transform: scaleX(1);
}

/* Insight card enhancement */
.insight-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.insight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(158, 43, 37, 0.08);
}

.insight-card h3 {
  transition: color 0.3s ease;
}

.insight-card:hover h3 {
  color: var(--cinnabar-light);
}

/* Nav enhancement */
.site-header {
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(249, 248, 246, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
}

/* Smooth link underline animation */
.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cinnabar);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Form input enhancement */
.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(158, 43, 37, 0.08);
  outline: none;
}

/* Section title enhancement */
.section-title h2 {
  position: relative;
  display: inline-block;
}

/* Value card enhancement */
.value-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(158, 43, 37, 0.08);
}

/* Network item enhancement */
.network-item {
  transition: all 0.3s ease;
  border-left: 2px solid transparent;
  padding-left: 1.5rem;
}

.network-item:hover {
  border-left-color: var(--cream);
  padding-left: 2rem;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   Navigation — Compact Breakpoint & Mobile Menu
   Six top-level links need more room than five; below 1100px the
   links collapse into a toggle-driven panel.
   ============================================================ */

@media (max-width: 1200px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links.open {
    display: flex;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--cream);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 2rem 1rem;
    z-index: 99;
  }

  .nav-links.open li {
    width: 100%;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open li:last-child {
    border-bottom: none;
  }

  .nav-links.open a {
    display: block;
    padding: 0.95rem 0;
    font-size: 0.95rem;
  }

  .nav-links.open a::after {
    display: none;
  }

  .nav-links.open a.active {
    color: var(--cinnabar);
    font-weight: 500;
  }
}

/* ============================================================
   Four-practice value grid (About page)
   Inline grid-template-columns cannot respond to breakpoints, so the
   four-up block lives here with its own responsive ladder.
   ============================================================ */

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

@media (max-width: 1024px) {
  .values-grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .values-grid-4 .value-card:nth-child(2) {
    border-right: none;
  }

  .values-grid-4 .value-card:nth-child(3),
  .values-grid-4 .value-card:nth-child(4) {
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 768px) {
  .values-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Headings inside full-bleed dark sections
   h3/h4 carry the brand colour by default, which is unreadable on the
   ink-earth ground; force them to paper so the cards stay legible.
   ============================================================ */

.methodology h3,
.methodology h4,
.network-section h3,
.network-section h4 {
  color: var(--cream);
}

/* ============================================================
   Chinese editorial detail — 书眉
   A short seal-red rule above section and page titles, echoing the
   ruled header line of a traditional woodblock page. On ink grounds
   the rule switches to paper so it stays visible.
   ============================================================ */

.section-title::before,
.page-header-inner::before {
  content: '';
  display: block;
  width: 56px;
  height: 2px;
  background: var(--cinnabar);
  margin-bottom: 1.5rem;
}

.methodology .section-title::before,
.network-section .section-title::before {
  background: var(--cream);
  opacity: 0.55;
}

/* The contact page opens with its own two-column head instead of .page-header,
   so it needs the same book-head rule. */
.contact-info::before {
  content: '';
  display: block;
  width: 56px;
  height: 2px;
  background: var(--cinnabar);
  margin-bottom: 1.5rem;
}