:root {
  --bg: #f4efe4;
  --bg-soft: #fbf8f1;
  --panel: rgba(255, 251, 244, 0.82);
  --panel-strong: rgba(255, 251, 244, 0.96);
  --ink: #2a2924;
  --ink-soft: #5a564d;
  --line: rgba(73, 67, 56, 0.14);
  --accent: #275d52;
  --accent-soft: #dce8df;
  --accent-strong: #19433b;
  --shadow: 0 20px 60px rgba(61, 52, 41, 0.08);
  --radius: 22px;
  --radius-sm: 14px;
  --content-width: 780px;
  --sidebar-width: 300px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(186, 210, 197, 0.28), transparent 34%),
    radial-gradient(circle at top right, rgba(219, 204, 174, 0.24), transparent 28%),
    linear-gradient(180deg, #f8f3e8 0%, var(--bg) 55%, #f0eadf 100%);
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  line-height: 1.8;
}

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

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

code {
  padding: 0.12rem 0.38rem;
  border-radius: 999px;
  background: rgba(39, 93, 82, 0.08);
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.page-shell {
  width: min(1380px, calc(100% - 40px));
  margin: 24px auto 40px;
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(250, 247, 240, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand,
.top-link,
.button,
.sidebar-link,
.pager-link,
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Noto Sans SC", "PingFang SC", "Segoe UI", sans-serif;
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.top-link {
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.top-link.is-active,
.top-link:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.layout {
  display: grid;
  grid-template-columns: minmax(240px, var(--sidebar-width)) minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.sidebar {
  position: sticky;
  top: 110px;
  align-self: start;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  max-height: calc(100vh - 140px);
  overflow: auto;
}

.sidebar-group + .sidebar-group {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.sidebar-group ul {
  margin: 0.6rem 0 0;
  padding: 0;
  list-style: none;
}

.sidebar-group li + li {
  margin-top: 0.35rem;
}

.sidebar-label {
  margin: 0;
  font: 700 0.9rem/1.4 "Noto Sans SC", "PingFang SC", sans-serif;
  letter-spacing: 0.05em;
  color: var(--accent-strong);
  text-transform: uppercase;
}

.sidebar-intro {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.65;
}

.sidebar-link {
  display: block;
  padding: 0.42rem 0.55rem;
  border-radius: 10px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.sidebar-link:hover,
.sidebar-link.is-current {
  background: rgba(39, 93, 82, 0.08);
  color: var(--ink);
}

.content {
  min-width: 0;
}

.mobile-nav {
  display: none;
}

.mobile-home-compact {
  display: none;
}

.home-flow {
  display: block;
}

.page-outline {
  display: none;
}

.mobile-nav-label {
  margin: 0 0 0.7rem;
  color: var(--accent-strong);
  font: 700 0.82rem/1.4 "Noto Sans SC", "PingFang SC", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mobile-nav-row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.mobile-nav-row::-webkit-scrollbar {
  display: none;
}

.mobile-nav-row.secondary {
  margin-top: 10px;
}

.mobile-nav-details {
  margin-top: 10px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.mobile-nav-details summary {
  cursor: pointer;
  list-style: none;
  color: var(--ink-soft);
  font: 600 0.9rem/1.35 "Noto Sans SC", "PingFang SC", sans-serif;
}

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

.mobile-chip {
  flex: 0 0 auto;
  padding: 0.62rem 0.9rem;
  border: 1px solid rgba(39, 93, 82, 0.15);
  border-radius: 999px;
  background: rgba(255, 251, 244, 0.96);
  color: var(--accent-strong);
  font: 600 0.92rem/1.3 "Noto Sans SC", "PingFang SC", sans-serif;
  white-space: nowrap;
}

.mobile-chip.subtle {
  color: var(--ink-soft);
}

.mobile-chip.is-current {
  background: var(--accent);
  color: #f7f3ec;
}

.page-outline {
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 251, 244, 0.94);
  box-shadow: var(--shadow);
}

.page-outline summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 16px;
  color: var(--accent-strong);
  font: 700 0.95rem/1.4 "Noto Sans SC", "PingFang SC", sans-serif;
}

.page-outline summary::-webkit-details-marker {
  display: none;
}

.outline-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 16px 16px;
}

.outline-link {
  color: var(--ink-soft);
  font: 500 0.94rem/1.45 "Noto Sans SC", "PingFang SC", sans-serif;
}

.outline-link.level-3 {
  padding-left: 12px;
  font-size: 0.9rem;
}

.hero,
.map-card,
.article,
.pager {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.hero {
  padding: 38px 36px;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(39, 93, 82, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(255, 251, 244, 0.98), rgba(249, 244, 235, 0.96));
}

.eyebrow,
.map-kicker {
  margin: 0 0 0.85rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font: 700 0.82rem/1.4 "Noto Sans SC", "PingFang SC", sans-serif;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.12;
}

.hero-copy {
  width: min(70ch, 100%);
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1.7rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 1.1rem;
  border: 1px solid rgba(39, 93, 82, 0.18);
  border-radius: 999px;
  background: transparent;
  color: var(--accent-strong);
  font-size: 0.96rem;
  font-weight: 600;
}

.button.primary {
  background: var(--accent);
  color: #f7f3ec;
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 22px 0 0;
}

.stat-strip,
.path-grid,
.audience-grid,
.capability-grid,
.mode-grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.stat-strip {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

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

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

.capability-grid,
.mode-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card,
.path-card,
.audience-card,
.manifesto-card,
.capability-card,
.mode-card,
.cta-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 251, 244, 0.94);
  box-shadow: var(--shadow);
}

.section-block {
  margin-top: 22px;
}

.section-title {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  line-height: 1.3;
}

.stat-card {
  padding: 20px 22px;
}

.stat-value {
  margin: 0;
  color: var(--accent-strong);
  font: 700 clamp(1.8rem, 4vw, 2.6rem)/1 "Noto Sans SC", "PingFang SC", sans-serif;
}

.stat-label {
  margin: 0.4rem 0 0;
  color: var(--ink-soft);
}

.path-card {
  padding: 24px;
}

.manifesto-card {
  margin-top: 22px;
  padding: 28px;
  background:
    radial-gradient(circle at right top, rgba(39, 93, 82, 0.1), transparent 28%),
    rgba(255, 251, 244, 0.96);
}

.manifesto-card h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.3;
}

.manifesto-card ul {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  max-width: 72ch;
}

.audience-card {
  padding: 24px;
}

.audience-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.audience-card p {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
}

.capability-card,
.mode-card {
  padding: 24px;
}

.capability-card h3,
.mode-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.capability-card p,
.mode-card p {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
}

.cta-panel {
  margin-top: 22px;
  padding: 30px 28px;
  background:
    radial-gradient(circle at left bottom, rgba(219, 204, 174, 0.28), transparent 34%),
    linear-gradient(180deg, rgba(255, 251, 244, 0.97), rgba(246, 239, 227, 0.96));
}

.cta-panel h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.8vw, 2.1rem);
  line-height: 1.28;
}

.cta-panel p:not(.eyebrow) {
  margin: 0.9rem 0 0;
  max-width: 72ch;
  color: var(--ink-soft);
}

.mobile-home-compact {
  margin-top: 18px;
  border: 1px dashed rgba(39, 93, 82, 0.22);
  border-radius: 18px;
  background: rgba(255, 251, 244, 0.94);
  padding: 18px 16px;
}

.mobile-home-compact h2 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.35;
}

.mobile-home-compact p:not(.eyebrow) {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
}

.path-card h2 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.35;
}

.path-card p {
  margin: 0.8rem 0 0;
  color: var(--ink-soft);
}

.path-link {
  display: inline-flex;
  margin-top: 1rem;
  font: 600 0.95rem/1.4 "Noto Sans SC", "PingFang SC", sans-serif;
}

.map-card {
  padding: 22px;
  animation: rise-in 520ms ease both;
}

.map-card h2 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.35;
}

.map-card p {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
}

.map-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.article {
  max-width: 1000px;
  margin-top: 22px;
  padding: 34px clamp(22px, 3vw, 48px);
}

.article > :first-child {
  margin-top: 0;
}

.article h1 {
  margin: 0 0 1.2rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.18;
}

.article h2,
.article h3,
.article h4,
.article h5,
.article h6 {
  margin-top: 2.1rem;
  margin-bottom: 0.8rem;
  line-height: 1.28;
  scroll-margin-top: 108px;
}

.article h2 {
  font-size: 1.6rem;
}

.article h3 {
  font-size: 1.25rem;
}

.article p,
.article ul,
.article ol {
  max-width: var(--content-width);
}

.article p {
  margin: 0.95rem 0;
  color: #322f29;
  font-size: 1.02rem;
}

.article ul,
.article ol {
  margin: 0.9rem 0;
  padding-left: 1.35rem;
}

.article li + li {
  margin-top: 0.5rem;
}

.article p,
.article li,
.standalone-card p,
.standalone-card li {
  word-break: break-word;
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding: 18px 20px;
}

.pager-link {
  max-width: 48%;
  font-weight: 600;
}

.pager-spacer {
  width: 48%;
}

.site-footer {
  margin-top: 18px;
  padding: 20px 22px 26px;
  color: var(--ink-soft);
}

.standalone-shell {
  max-width: 920px;
  margin: 24px auto 0;
}

.standalone-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  padding: 34px clamp(22px, 3vw, 48px);
}

.standalone-card > :first-child {
  margin-top: 0;
}

.standalone-card h1,
.standalone-card h2 {
  font-family: "Noto Sans SC", "PingFang SC", sans-serif;
}

.standalone-card h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.standalone-card h2 {
  margin: 1.8rem 0 0.7rem;
  font-size: 1.3rem;
}

.standalone-card p,
.standalone-card ol,
.standalone-card ul {
  max-width: var(--content-width);
}

.site-footer p {
  margin: 0;
}

.footer-legal {
  margin-top: 0.9rem;
}

.footer-legal p + p {
  margin-top: 0.2rem;
}

.footer-meta {
  margin-top: 0.45rem;
  font-size: 0.92rem;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .page-shell {
    width: min(100% - 24px, 980px);
    margin-top: 12px;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .mobile-nav {
    display: block;
    margin-bottom: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 251, 244, 0.94);
    box-shadow: var(--shadow);
  }

  .page-outline {
    display: block;
  }

  .home-page .page-outline {
    display: none;
  }

  .topbar {
    gap: 12px;
    padding: 14px 16px;
  }

  .topnav {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .topnav::-webkit-scrollbar {
    display: none;
  }

  .top-link {
    flex: 0 0 auto;
  }

  .hero,
  .article,
  .pager,
  .cta-panel,
  .manifesto-card,
  .standalone-card,
  .page-outline {
    padding-left: 22px;
    padding-right: 22px;
  }

  .stat-strip,
  .path-grid,
  .audience-grid,
  .capability-grid,
  .mode-grid,
  .map-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .home-page .article {
    display: none;
  }

  .home-page .mobile-home-compact {
    display: block;
  }
}

@media (max-width: 640px) {
  body {
    line-height: 1.72;
  }

  .page-shell {
    width: calc(100% - 16px);
    margin: 8px auto 22px;
  }

  .topbar {
    position: sticky;
    top: 8px;
    padding: 12px 14px;
    border-radius: 18px;
  }

  .brand {
    font-size: 1rem;
  }

  .top-link {
    padding: 0.44rem 0.78rem;
    font-size: 0.88rem;
  }

  .hero,
  .article,
  .pager,
  .cta-panel,
  .manifesto-card,
  .standalone-card,
  .mobile-nav,
  .page-outline,
  .mobile-home-compact {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-actions,
  .pager {
    flex-direction: column;
  }

  .hero {
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .hero h1 {
    font-size: clamp(1.75rem, 10vw, 2.35rem);
    line-height: 1.14;
  }

  .hero-copy,
  .article p,
  .article li,
  .standalone-card p,
  .standalone-card li {
    font-size: 0.97rem;
  }

  .article {
    margin-top: 16px;
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .article h1 {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }

  .article h2,
  .section-title,
  .cta-panel h2,
  .manifesto-card h2 {
    font-size: clamp(1.2rem, 6vw, 1.55rem);
  }

  .eyebrow,
  .mobile-nav-label {
    font-size: 0.76rem;
  }

  .button,
  .mobile-chip {
    width: 100%;
    justify-content: center;
  }

  .mobile-nav-row {
    flex-direction: column;
    overflow: visible;
  }

  .mobile-nav-row.secondary {
    margin-top: 8px;
  }

  .mobile-nav-details {
    margin-top: 8px;
    padding-top: 8px;
  }

  .mobile-nav-details summary {
    padding: 2px 0;
    font-size: 0.88rem;
  }

  .pager-link,
  .pager-spacer {
    max-width: 100%;
    width: 100%;
  }

  .article p {
    margin: 0.82rem 0;
  }

  .article ul,
  .article ol {
    margin: 0.78rem 0;
    padding-left: 1.1rem;
  }

  .article li + li {
    margin-top: 0.34rem;
  }

  .pager-link {
    padding: 0.85rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 251, 244, 0.94);
  }

  .home-page .home-flow {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .home-page .home-flow > * {
    margin-top: 0;
  }

  .home-page .path-grid {
    order: 1;
  }

  .home-page .cta-panel {
    order: 2;
  }

  .home-page .manifesto-card {
    order: 3;
  }

  .home-page .capabilities-section {
    order: 4;
  }

  .home-page .modes-section {
    order: 5;
  }

  .home-page .stat-strip,
  .home-page .audience-grid,
  .home-page .map-grid {
    display: none;
  }
}