:root {
  --bg: #ffffff;
  --bg-alt: #ede9e3;
  --bg-soft: #e7edf4;
  --text: #1f2430;
  --text-soft: #5e6673;
  --line: #d8d2c8;
  --accent: #223a5e;
  --accent-2: #2f4e7d;
  --max: 1200px;
  --content: 820px;
  --nav-height: 76px;
  --shadow-soft: 0 16px 48px rgba(18, 25, 36, 0.06);
  --radius: 20px;
  --radius-sm: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 20% 10%, rgba(34,58,94,0.04), transparent 26%),
                    radial-gradient(circle at 80% 30%, rgba(31,36,48,0.03), transparent 28%);
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(31,36,48,0.02) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(31,36,48,0.02) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.22;
  z-index: -1;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  background: var(--accent);
  color: white;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 100;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(255,255,255,0.82);
  border-bottom: 1px solid rgba(216,210,200,0.8);
}

.container {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: var(--nav-height);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
  text-transform: uppercase;
  margin-right: auto;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(34,58,94,0.12);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--text);
  opacity: 0.92;
}

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

.lang-switch {
  margin-left: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(216,210,200,0.95);
  background: rgba(255,255,255,0.86);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.lang-switch:hover,
.lang-switch:focus-visible {
  background: white;
  border-color: var(--accent);
  transform: translateY(-1px);
}


.mobile-toggle {
  display: none;
  order: 3;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  width: 48px;
  height: 48px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-toggle span,
.mobile-toggle::before,
.mobile-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 4px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.mobile-toggle::before { transform: translateY(-6px); }
.mobile-toggle::after { transform: translateY(4px); }
.mobile-toggle span { transform: translateY(0); }
.mobile-toggle[aria-expanded="true"] span { opacity: 0; }
.mobile-toggle[aria-expanded="true"]::before { transform: rotate(45deg) translateY(2px); }
.mobile-toggle[aria-expanded="true"]::after { transform: rotate(-45deg) translateY(-2px); }

main { display: block; }

.page-hero,
.hero {
  position: relative;
  padding: 112px 0 88px;
}

.hero::before,
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(34,58,94,0.05), transparent 42%);
  pointer-events: none;
}

.hero-grid,
.page-hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(34,58,94,0.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(34,58,94,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.8), transparent 82%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-inner,
.page-hero-inner {
  position: relative;
  display: grid;
  gap: 28px;
  justify-items: center;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-soft);
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.hero h1,
.page-hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0;
  max-width: 12ch;
}

.hero-subtitle,
.page-subtitle {
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  color: var(--text);
  max-width: 32ch;
  margin: 0;
  font-weight: 650;
}

.definition-card {
  width: min(100%, 880px);
  background: rgba(231,237,244,0.95);
  border: 1px solid rgba(34,58,94,0.12);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px 30px;
  box-shadow: var(--shadow-soft);
  text-align: left;
}

.definition-card p,
.definition-card li { margin: 0; font-size: 1.08rem; }
.definition-card strong { color: var(--accent); }

.hero-actions,
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.98rem;
  font-weight: 650;
  transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.btn:hover,
.btn:focus-visible { transform: translateY(-1px); }
.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn-primary:hover,
.btn-primary:focus-visible { background: var(--accent-2); border-color: var(--accent-2); }
.btn-secondary { background: rgba(255,255,255,0.84); color: var(--accent); }
.btn-secondary:hover,
.btn-secondary:focus-visible { background: white; border-color: var(--accent); }

.section {
  padding: 96px 0;
  border-top: 1px solid rgba(216,210,200,0.6);
}
.section.alt { background: var(--bg-alt); }
.section.soft { background: var(--bg-soft); }
.section:first-of-type { border-top: 0; }

.section-inner { width: min(100%, var(--content)); }
.section-intro { margin-bottom: 28px; }
.section h2,
.section h3 {
  margin: 0 0 16px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.section p,
.section li {
  font-size: 1.15rem;
  margin: 0 0 16px;
  color: var(--text);
}
.section p:last-child { margin-bottom: 0; }
.section .muted { color: var(--text-soft); }

.rule {
  width: 88px;
  height: 1px;
  background: var(--accent);
  margin: 0 0 20px;
}

.definition-list,
.dash-list,
.clean-list { list-style: none; padding: 0; margin: 22px 0 0; }
.definition-list li,
.dash-list li,
.clean-list li {
  position: relative;
  padding-left: 30px;
}
.definition-list li::before,
.dash-list li::before,
.clean-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  width: 20px;
  color: var(--accent);
  font-weight: 700;
}

.terms-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}
.term {
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(216,210,200,0.8);
  box-shadow: var(--shadow-soft);
}
.term h3,
.term h4 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  color: var(--accent);
}
.term p { font-size: 1rem; margin: 0; color: var(--text-soft); }

.pull-quote {
  margin: 28px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  color: var(--accent);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 720;
  line-height: 1.45;
}

.reading-block {
  width: min(100%, 720px);
}

.reading-block p,
.manifesto-body p {
  font-size: 1.18rem;
  line-height: 1.9;
  margin: 0 0 22px;
}

.manifesto-body {
  width: min(100%, 720px);
}


.manifesto-body .eyebrow {
  margin-bottom: 14px;
}

.manifesto-body h2 {
  margin: 0 0 24px;
  font-size: clamp(1.9rem, 3.2vw, 2.7rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
}

.manifesto-body h3 {
  margin: 42px 0 18px;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.2;
  color: var(--accent);
}

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

.manifesto-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text);
  line-height: 1.8;
}

.manifesto-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  width: 24px;
  color: var(--accent);
  font-weight: 700;
}

.transition-card {
  padding: 32px;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border-left: 3px solid var(--accent);
}

.profile-block {
  width: min(100%, 860px);
}
.profile-header {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}
.profile-name {
  font-size: clamp(1.55rem, 3vw, 2rem);
  line-height: 1.2;
  font-weight: 760;
  letter-spacing: -0.02em;
}
.profile-role {
  font-size: 0.98rem;
  color: var(--text-soft);
  font-weight: 650;
  letter-spacing: 0.02em;
}
.profile-line {
  font-size: 1.08rem;
  font-weight: 650;
  color: var(--accent);
}
.profile-bio {
  margin-top: 18px;
  color: var(--text-soft);
  font-size: 1rem;
}

.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 1fr;
  gap: 32px;
}
.footer-title {
  font-size: 1.35rem;
  font-weight: 760;
  margin-bottom: 12px;
}
.footer h3 {
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-soft);
  margin: 0 0 12px;
}
.footer p,
.footer a,
.footer li {
  font-size: 0.98rem;
  color: var(--text);
}
.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.footer-bottom {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid rgba(216,210,200,0.9);
  color: var(--text-soft);
  font-size: 0.92rem;
}

.notice {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--text-soft);
}

@media (max-width: 1023px) {
  .section { padding: 80px 0; }
  .container { width: min(calc(100% - 40px), var(--max)); }
  .terms-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  :root { --nav-height: 68px; }
  body::after { background-size: 44px 44px; }
  .container { width: min(calc(100% - 32px), var(--max)); }
  .nav-wrap { gap: 12px; }
  .lang-switch {
    margin-left: auto;
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.88rem;
  }
  .mobile-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    left: 16px;
    padding: 18px;
    background: rgba(255,255,255,0.98);
    border: 1px solid rgba(216,210,200,0.95);
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .hero,
  .page-hero { padding: 88px 0 56px; }
  .hero-inner,
  .page-hero-inner { text-align: center; gap: 22px; }
  .hero-actions,
  .page-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn,
  .page-actions .btn { width: 100%; }
  .definition-card { padding: 22px 20px; }
  .section { padding: 64px 0; }
  .section p,
  .section li,
  .reading-block p,
  .manifesto-body p { font-size: 1rem; }
  .footer-grid { grid-template-columns: 1fr; }
}


/* =========================================================
   GYCN V0.1a — additive styles only; GOPC V0.2 rules preserved
   ========================================================= */
:root {
  --gycn-blue: #223A5E;
  --gycn-teal: #1E9C9A;
  --gycn-cyan: #45B8C8;
  --gycn-soft: #F3F7FA;
  --gycn-line: rgba(34,58,94,0.16);
}
.gycn-page .lead { font-size: clamp(1.12rem, 2vw, 1.42rem); line-height: 1.7; color: var(--accent); font-weight: 700; }
.gycn-hero { position: relative; padding: 104px 0 80px; overflow: hidden; background: linear-gradient(135deg, rgba(245,242,236,0.96), rgba(243,247,250,0.96)); }
.gycn-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 72% 20%, rgba(30,156,154,0.16), transparent 34%), radial-gradient(circle at 20% 74%, rgba(34,58,94,0.10), transparent 36%); pointer-events: none; }
.gycn-hero-inner { position: relative; z-index: 1; max-width: 980px; }
.gycn-kicker { display: inline-flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--gycn-teal); font-size: 0.82rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 18px; }
.gycn-hero h1 { max-width: 960px; font-size: clamp(2.55rem, 7.2vw, 6.5rem); line-height: 0.98; margin: 0 0 28px; letter-spacing: -0.055em; }
.gycn-hero-subtitle { max-width: 820px; font-size: clamp(1.16rem, 2.2vw, 1.55rem); line-height: 1.65; color: var(--accent); font-weight: 700; }
.gycn-supporting { max-width: 760px; font-size: 1.05rem; line-height: 1.85; color: var(--muted); }
.quick-definition { margin-top: 36px; padding: 26px; border: 1px solid var(--gycn-line); border-radius: 24px; background: rgba(255,255,255,0.78); box-shadow: 0 18px 50px rgba(34,58,94,0.08); }
.quick-definition h2 { margin-top: 0; font-size: 1.1rem; }
.quick-definition ul { margin: 0; padding-left: 1.2rem; color: var(--text); }
.quick-definition li { margin: 8px 0; line-height: 1.7; }
.gycn-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 28px; }
.gycn-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.gycn-card, .gycn-track-card, .gycn-data-card { border: 1px solid var(--gycn-line); border-radius: 22px; background: rgba(255,255,255,0.78); padding: 24px; box-shadow: 0 16px 45px rgba(34,58,94,0.06); }
.gycn-card h3, .gycn-track-card h3 { margin-top: 0; margin-bottom: 10px; color: var(--accent); }
.gycn-card p, .gycn-track-card p { margin-bottom: 0; }
.gycn-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 30px 0; }
.gycn-flow span { display: inline-flex; min-height: 42px; align-items: center; padding: 8px 14px; border-radius: 999px; background: white; border: 1px solid var(--gycn-line); color: var(--accent); font-weight: 700; }
.gycn-flow b { color: var(--gycn-teal); }
.gycn-flow.compact span { font-size: 0.94rem; }
.gycn-data-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin: 30px 0; }
.gycn-data-card strong { display: block; color: var(--gycn-teal); font-size: clamp(1.6rem, 3vw, 2.55rem); line-height: 1.1; margin-bottom: 10px; }
.gycn-data-card span { display: block; color: var(--text); line-height: 1.55; font-weight: 600; }
.gycn-data-card.wide { grid-column: span 2; }
.gycn-note { padding: 18px 20px; border-left: 4px solid var(--gycn-teal); background: rgba(30,156,154,0.07); border-radius: 16px; color: var(--accent); font-weight: 650; }
.gycn-timeline { display: grid; gap: 14px; margin: 30px 0; }
.gycn-timeline article { position: relative; padding: 20px 22px 20px 26px; border: 1px solid var(--gycn-line); border-radius: 20px; background: rgba(255,255,255,0.70); }
.gycn-timeline article::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 4px; border-radius: 8px; background: var(--gycn-teal); }
.gycn-timeline b { color: var(--accent); }
.gycn-timeline p { margin-bottom: 0; }
.gycn-evidence-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 24px; }
.gycn-evidence-grid figure { margin: 0; border: 1px solid var(--gycn-line); border-radius: 20px; overflow: hidden; background: white; }
.gycn-evidence-grid img { width: 100%; height: 210px; object-fit: cover; display: block; background: var(--gycn-soft); }
.gycn-evidence-grid figcaption { padding: 12px 16px; font-weight: 700; color: var(--accent); }
.gycn-track-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 28px 0; }
.gycn-track-card span { display: inline-flex; margin-bottom: 12px; color: var(--gycn-teal); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 800; }
.gycn-track-card.priority { border-color: rgba(30,156,154,0.45); background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(30,156,154,0.08)); }
.gycn-resource-contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; margin-top: 26px; }
.gycn-resource-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.disabled-link { opacity: 0.58; cursor: not-allowed; }
.gycn-page-zh .gycn-kicker { letter-spacing: 0.06em; }
@media (max-width: 920px) {
  .gycn-grid, .gycn-grid.four, .gycn-track-grid, .gycn-resource-contact, .gycn-evidence-grid { grid-template-columns: 1fr; }
  .gycn-data-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gycn-data-card.wide { grid-column: span 2; }
}
@media (max-width: 640px) {
  .gycn-hero { padding: 78px 0 56px; }
  .gycn-hero h1 { font-size: clamp(2.25rem, 12vw, 3.8rem); }
  .gycn-data-grid { grid-template-columns: 1fr; }
  .gycn-data-card.wide { grid-column: span 1; }
  .quick-definition { padding: 20px; }
  .gycn-flow span { width: 100%; justify-content: center; text-align: center; }
  .gycn-flow b { width: 100%; text-align: center; }
}

/* =========================================================
   GYCN V0.1b — typography & card readability refinements
   Scope: GYCN pages only. No GOPC V0.2 config/path rules changed.
   ========================================================= */
.gycn-page {
  --gycn-section-max: 960px;
  --gycn-grid-max: 1120px;
  --gycn-text: #1f2430;
  --gycn-body: #2e3542;
}

.gycn-page .section-inner {
  width: min(calc(100% - 48px), var(--gycn-section-max));
}

.gycn-page .lead {
  font-size: clamp(1.18rem, 1.65vw, 1.38rem);
  line-height: 1.68;
  color: var(--accent);
  font-weight: 640;
  letter-spacing: -0.012em;
}

.gycn-page .section p,
.gycn-page .section li {
  color: var(--gycn-body);
  font-size: clamp(1.02rem, 1.22vw, 1.13rem);
  line-height: 1.82;
  font-weight: 430;
}

.gycn-page .section h2 {
  font-size: clamp(2.15rem, 3.2vw, 3.05rem);
  line-height: 1.1;
  letter-spacing: -0.038em;
  max-width: 18ch;
}

.gycn-page-en .section h2 {
  max-width: 24ch;
}

.gycn-page .section h3 {
  letter-spacing: -0.025em;
}

.gycn-hero {
  padding: 92px 0 72px;
}

.gycn-hero-inner {
  max-width: 1040px;
}

.gycn-kicker {
  font-size: clamp(0.72rem, 0.9vw, 0.82rem);
  letter-spacing: 0.115em;
  margin-bottom: 18px;
}

.gycn-hero h1 {
  margin-bottom: 24px;
  color: var(--gycn-text);
}

.gycn-page-en .gycn-hero h1 {
  max-width: 980px;
  font-size: clamp(3.2rem, 6vw, 5.55rem);
  line-height: 0.99;
  letter-spacing: -0.058em;
}

.gycn-page-zh .gycn-hero h1 {
  max-width: 980px;
  font-size: clamp(3rem, 5.1vw, 4.7rem);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.gycn-hero-subtitle {
  max-width: 850px;
  font-size: clamp(1.08rem, 1.75vw, 1.36rem);
  line-height: 1.68;
  font-weight: 640;
}

.gycn-supporting {
  max-width: 820px;
  font-size: clamp(1rem, 1.1vw, 1.08rem);
  line-height: 1.86;
  color: var(--text-soft);
  font-weight: 430;
}

.quick-definition {
  max-width: 860px;
  margin-top: 32px;
  padding: 22px 24px;
  border-radius: 20px;
  box-shadow: 0 14px 40px rgba(34,58,94,0.06);
}

.quick-definition h2 {
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.quick-definition li {
  font-size: 1rem;
  line-height: 1.68;
}

.gycn-grid,
.gycn-grid.four,
.gycn-track-grid,
.gycn-data-grid,
.gycn-evidence-grid {
  width: min(calc(100vw - 48px), var(--gycn-grid-max));
  margin-left: 50%;
  transform: translateX(-50%);
}

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

.gycn-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.gycn-card,
.gycn-track-card,
.gycn-data-card {
  min-width: 0;
  height: auto;
  overflow: visible;
  padding: 24px 26px;
  border-radius: 22px;
  box-shadow: 0 14px 38px rgba(34,58,94,0.045);
}

.gycn-card h3,
.gycn-track-card h3 {
  margin: 0 0 12px;
  color: var(--accent);
  line-height: 1.12;
  letter-spacing: -0.04em;
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
}

.gycn-card h3 {
  font-size: clamp(1.55rem, 2.05vw, 2rem);
  font-weight: 760;
}

.gycn-grid.four .gycn-card h3 {
  font-size: clamp(1.45rem, 1.8vw, 1.82rem);
}

.gycn-track-card h3 {
  font-size: clamp(1.85rem, 2.45vw, 2.32rem);
  font-weight: 770;
}

.gycn-card p,
.gycn-track-card p {
  font-size: clamp(1rem, 1.16vw, 1.1rem);
  line-height: 1.72;
  font-weight: 420;
  color: var(--gycn-body);
}

.gycn-page-zh .gycn-card h3 {
  font-size: clamp(1.55rem, 2vw, 1.96rem);
  line-height: 1.16;
}

.gycn-page-zh .gycn-grid.four .gycn-card h3 {
  font-size: clamp(1.46rem, 1.8vw, 1.78rem);
}

.gycn-page-zh .gycn-track-card h3 {
  font-size: clamp(1.8rem, 2.3vw, 2.22rem);
  line-height: 1.16;
}

.gycn-data-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.gycn-data-card {
  padding: 24px 28px;
  min-height: 180px;
}

.gycn-data-card strong {
  display: block;
  color: var(--gycn-teal);
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.08;
  margin-bottom: 14px;
  letter-spacing: -0.035em;
  font-weight: 780;
}

.gycn-data-card:not(.wide) strong {
  white-space: nowrap;
}

.gycn-data-card span {
  color: var(--gycn-body);
  line-height: 1.56;
  font-size: clamp(0.98rem, 1.05vw, 1.06rem);
  font-weight: 600;
}

.gycn-data-card.wide {
  grid-column: span 2;
  min-height: 160px;
}

.gycn-data-card.wide strong {
  font-size: clamp(2rem, 3vw, 2.65rem);
  max-width: 12ch;
}

.gycn-note {
  font-size: clamp(1rem, 1.16vw, 1.08rem);
  line-height: 1.68;
  font-weight: 620;
  padding: 18px 22px;
}

.gycn-flow {
  gap: 10px 12px;
}

.gycn-flow span {
  min-height: 38px;
  padding: 7px 14px;
  font-size: 0.95rem;
  font-weight: 680;
  line-height: 1.25;
}

.gycn-flow.compact {
  gap: 10px 12px;
}

.gycn-flow.compact span {
  font-size: 0.88rem;
  white-space: nowrap;
}

.gycn-timeline article {
  padding: 18px 22px 18px 26px;
}

.gycn-timeline b {
  font-size: 1.02rem;
  line-height: 1.35;
}

.gycn-timeline p {
  font-size: 1.02rem;
  line-height: 1.68;
}

.gycn-track-grid {
  gap: 22px;
}

.gycn-track-card {
  padding: 30px;
}

.gycn-track-card span {
  font-size: 0.76rem;
  line-height: 1.45;
  letter-spacing: 0.1em;
}

.gycn-resource-contact {
  gap: 42px;
}

.gycn-resource-contact h3 {
  font-size: clamp(1.9rem, 2.5vw, 2.45rem);
  line-height: 1.1;
  margin-bottom: 18px;
}

.gycn-resource-list li,
.gycn-resource-list span {
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 1.55;
}

.gycn-page .pull-quote {
  font-size: clamp(1.25rem, 1.8vw, 1.55rem);
  line-height: 1.48;
  font-weight: 700;
}

@media (max-width: 1180px) {
  .gycn-grid,
  .gycn-grid.four,
  .gycn-track-grid,
  .gycn-data-grid,
  .gycn-evidence-grid {
    width: min(calc(100vw - 48px), 1040px);
  }
  .gycn-card h3 { font-size: clamp(1.42rem, 2.15vw, 1.82rem); }
  .gycn-track-card h3 { font-size: clamp(1.7rem, 2.8vw, 2.05rem); }
}

@media (max-width: 980px) {
  .gycn-page .section-inner {
    width: min(calc(100% - 40px), 900px);
  }
  .gycn-grid,
  .gycn-grid.four,
  .gycn-track-grid,
  .gycn-evidence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .gycn-data-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .gycn-data-card.wide {
    grid-column: span 2;
  }
  .gycn-resource-contact {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 767px) {
  .gycn-page .section-inner {
    width: min(calc(100% - 32px), 100%);
  }
  .gycn-hero {
    padding: 74px 0 56px;
  }
  .gycn-page-en .gycn-hero h1,
  .gycn-page-zh .gycn-hero h1 {
    font-size: clamp(2.45rem, 11vw, 3.55rem);
    line-height: 1.04;
    letter-spacing: -0.052em;
  }
  .gycn-hero-subtitle {
    font-size: 1.08rem;
    line-height: 1.62;
  }
  .gycn-supporting {
    font-size: 1rem;
    line-height: 1.74;
  }
  .gycn-page .section h2 {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }
  .gycn-page .lead {
    font-size: 1.1rem;
    line-height: 1.62;
  }
  .gycn-grid,
  .gycn-grid.four,
  .gycn-track-grid,
  .gycn-evidence-grid,
  .gycn-data-grid {
    width: 100%;
    margin-left: 0;
    transform: none;
    grid-template-columns: 1fr;
  }
  .gycn-card,
  .gycn-track-card,
  .gycn-data-card {
    padding: 22px;
  }
  .gycn-card h3,
  .gycn-grid.four .gycn-card h3,
  .gycn-track-card h3,
  .gycn-page-zh .gycn-card h3,
  .gycn-page-zh .gycn-grid.four .gycn-card h3,
  .gycn-page-zh .gycn-track-card h3 {
    font-size: clamp(1.65rem, 7vw, 2rem);
    line-height: 1.12;
  }
  .gycn-data-card.wide {
    grid-column: span 1;
  }
  .gycn-data-card strong,
  .gycn-data-card.wide strong {
    font-size: clamp(2rem, 9vw, 2.55rem);
    max-width: none;
  }
  .gycn-flow.compact span {
    white-space: normal;
  }
}

/* =========================================================
   GYCN V0.1c — Hero visual balance & section rhythm refinements
   Scope: GYCN pages only. No GOPC V0.2 config/path rules changed.
   ========================================================= */
.gycn-page .section {
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.gycn-hero .hero-actions {
  justify-content: flex-start;
  margin-top: 22px;
}

.gycn-track-title {
  max-width: 18ch;
  text-wrap: balance;
}

.gycn-page-zh .gycn-track-title {
  max-width: 14ch;
}

.gycn-page-en .gycn-track-card h3 {
  font-size: clamp(1.75rem, 2.25vw, 2.16rem);
  line-height: 1.1;
}

.gycn-page-en .gycn-data-card strong {
  font-size: clamp(1.92rem, 2.82vw, 2.62rem);
}

.gycn-page-en .gycn-data-card.wide strong {
  font-size: clamp(1.92rem, 2.72vw, 2.48rem);
}

@media (min-width: 1100px) {
  .gycn-page-zh .gycn-hero-inner {
    transform: translateX(44px);
  }
}

@media (min-width: 1280px) {
  .gycn-page-zh .gycn-hero-inner {
    transform: translateX(52px);
  }
}

@media (max-width: 1099px) {
  .gycn-page-zh .gycn-hero-inner {
    transform: none;
  }
}

@media (max-width: 767px) {
  .gycn-hero .hero-actions {
    justify-content: center;
    margin-top: 18px;
  }
  .gycn-track-title,
  .gycn-page-zh .gycn-track-title {
    max-width: 100%;
  }
}

/* =========================================================
   GYCN V0.1d — Logo placement & data highlight balance
   Scope: GYCN pages only. No GOPC V0.2 config/path rules changed.
   ========================================================= */
.gycn-hero-logo {
  display: block;
  height: auto;
  margin: 0 0 22px;
  object-fit: contain;
  opacity: 0.98;
}

.gycn-hero-logo-en {
  width: clamp(220px, 17vw, 280px);
}

.gycn-hero-logo-zh {
  width: clamp(270px, 25vw, 380px);
}

.gycn-page-zh .gycn-hero-logo {
  margin-bottom: 24px;
}

.gycn-footer-logo {
  width: 156px;
  height: auto;
  margin: 0 0 12px;
  opacity: 0.96;
}

.gycn-footer-logo-zh {
  width: 210px;
}

.gycn-data-card.wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(260px, 0.44fr) minmax(0, 1fr);
  align-items: center;
  gap: 30px;
  min-height: 128px;
  padding: 28px 32px;
}

.gycn-data-card.wide strong {
  max-width: none;
  margin-bottom: 0;
  font-size: clamp(2rem, 2.55vw, 2.45rem);
  line-height: 1.05;
}

.gycn-data-card.wide span {
  max-width: 620px;
  font-size: clamp(1rem, 1.08vw, 1.08rem);
  line-height: 1.62;
}

.gycn-page-zh .gycn-data-card.wide strong {
  font-size: clamp(2rem, 2.7vw, 2.6rem);
}

.gycn-page-en .gycn-data-card:nth-child(3) strong {
  font-size: clamp(1.85rem, 2.55vw, 2.38rem);
}

.gycn-note {
  margin-top: 26px;
}

@media (min-width: 1100px) {
  .gycn-page-zh .gycn-hero-inner {
    transform: translateX(36px);
  }
}

@media (min-width: 1280px) {
  .gycn-page-zh .gycn-hero-inner {
    transform: translateX(44px);
  }
}

@media (max-width: 980px) {
  .gycn-data-card.wide {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .gycn-data-card.wide strong {
    margin-bottom: 4px;
  }
}

@media (max-width: 767px) {
  .gycn-hero-logo-en {
    width: min(230px, 70vw);
  }
  .gycn-hero-logo-zh {
    width: min(300px, 82vw);
  }
  .gycn-hero-logo {
    margin-bottom: 18px;
  }
  .gycn-data-card.wide {
    grid-column: span 1;
    padding: 22px;
  }
  .gycn-footer-logo,
  .gycn-footer-logo-zh {
    width: 170px;
  }
}


/* =========================================================
   GYCN V0.1e — Mobile Hero line-break & Quick Definition polish
   Based on live V0.1d files. Only GYCN mobile visual rules changed.
   No server config, path rules, PDFs, images, email, LinkedIn, or announcement links changed.
   ========================================================= */
.gycn-nowrap {
  white-space: nowrap;
}

@media (max-width: 767px) {
  .gycn-hero {
    padding: 62px 0 44px;
  }

  .gycn-page-en .gycn-hero h1 {
    font-size: clamp(2.32rem, 10.2vw, 3.22rem);
    line-height: 1.04;
    letter-spacing: -0.052em;
    margin-bottom: 20px;
  }

  .gycn-page-zh .gycn-hero h1 {
    font-size: clamp(2.15rem, 9.1vw, 3.02rem);
    line-height: 1.08;
    letter-spacing: -0.052em;
    margin-bottom: 20px;
  }

  .gycn-hero-logo-en {
    width: min(220px, 64vw);
  }

  .gycn-hero-logo-zh {
    width: min(260px, 76vw);
  }

  .gycn-hero-logo {
    margin-bottom: 14px;
  }

  .gycn-hero-subtitle {
    font-size: 1.02rem;
    line-height: 1.58;
  }

  .gycn-supporting {
    font-size: 0.96rem;
    line-height: 1.68;
  }

  .quick-definition {
    margin-top: 22px;
    padding: 16px 18px;
    border-radius: 18px;
  }

  .quick-definition h2 {
    font-size: 0.96rem;
    margin-bottom: 8px;
  }

  .quick-definition ul {
    padding-left: 1.05rem;
  }

  .quick-definition li {
    font-size: 0.94rem;
    line-height: 1.52;
    margin: 5px 0;
  }
}

@media (max-width: 390px) {
  .gycn-page-zh .gycn-hero h1 {
    font-size: clamp(2.05rem, 8.8vw, 2.75rem);
  }

  .gycn-page-en .gycn-hero h1 {
    font-size: clamp(2.18rem, 9.6vw, 3rem);
  }
}