:root {
  --ink-950: #09090b;
  --ink-900: #18181b;
  --ink-800: #27272a;
  --teal-700: #27272a;
  --teal-500: #52525b;
  --mint-300: #f4f4ef;
  --sand-100: #faf9f5;
  --sand-200: #f3f1e8;
  --paper: #fdfdf7;
  --paper-strong: #ffffff;
  --line: rgba(24, 24, 27, 0.08);
  --text-strong: #18181b;
  --text-soft: #5f6470;
  --text-inverse: #fafafa;
  --accent: #d4a27f;
  --accent-soft: #f2e0d2;
  --shadow-lg: 0 18px 48px rgba(24, 24, 27, 0.07);
  --shadow-md: 0 10px 28px rgba(24, 24, 27, 0.05);
  --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.06);
  --radius-xl: 22px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --transition: 220ms ease;
  --font-body: "Inter", "Noto Sans SC", "Segoe UI", system-ui, sans-serif;
  --font-display: "Inter", "Noto Sans SC", "Segoe UI", system-ui, sans-serif;
  --font-ui: "Inter", "Noto Sans SC", "Segoe UI", system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text-strong);
  background: var(--paper);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(253, 253, 247, 0.98), rgba(253, 253, 247, 1));
  z-index: -2;
}

.page-backdrop {
  display: none;
}

a {
  color: inherit;
}

code {
  background: rgba(24, 24, 27, 0.05);
  border-radius: 8px;
  color: var(--ink-900);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  padding: 0.14rem 0.4rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(253, 253, 247, 0.9);
  border-bottom: 1px solid rgba(24, 24, 27, 0.08);
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.95rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.container.is-max-widescreen {
  max-width: 1120px !important;
}

.brand-mark {
  font-family: var(--font-ui);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink-900);
  text-decoration: none;
}

.topbar-nav {
  display: flex;
  gap: 1.2rem;
}

.topbar-nav a {
  color: var(--text-soft);
  text-decoration: none;
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.topbar-nav a:hover {
  color: var(--ink-900);
}

.hero-shell {
  padding: 3.25rem 1.5rem 2.5rem;
}

.banner-overview-shell {
  padding: 0 1.5rem 3.5rem;
}

.banner-overview-frame,
.banner-video-frame {
  max-width: 920px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid rgba(24, 24, 27, 0.08);
  border-radius: var(--radius-lg);
  background: var(--ink-950);
  box-shadow: var(--shadow-md);
}

.banner-overview-frame {
  margin-bottom: 1.5rem;
}

.banner-overview-image {
  display: block;
  width: 100%;
  height: auto;
}

.banner-video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: start;
  max-width: 920px;
}

.hero-copy {
  position: relative;
}

.hero-copy {
  padding: 0.2rem 0 0;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-soft);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  text-transform: none;
}

.hero-copy h1,
.section-title {
  font-family: var(--font-display);
  color: var(--ink-900);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-copy h1 {
  font-size: clamp(2.35rem, 4.4vw, 3.5rem);
  line-height: 1.1;
  margin: 0 0 1rem;
  max-width: 17ch;
}

.hero-brand {
  display: inline-block;
  font-size: 1.26em;
  font-weight: 800;
  letter-spacing: -0.045em;
}

.hero-title-sub {
  display: block;
  margin-top: 0.18em;
  font-size: 0.64em;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--ink-800);
}

.section-title-main {
  display: block;
}

.section-title-sub {
  display: block;
  margin-top: 0.2em;
  font-size: 0.58em;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--ink-800);
}

.hero-lead,
.section-summary {
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 64ch;
}

.award-highlight {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  max-width: 720px;
  margin-top: 1.5rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(212, 162, 127, 0.55);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-sm);
}

.award-icon {
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: #7b4f31;
  font-size: 1.12rem;
}

.award-event,
.award-title,
.award-ranking span,
.award-ranking strong {
  margin: 0;
}

.award-event {
  color: var(--text-soft);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.4;
}

.award-title {
  margin-top: 0.12rem;
  color: var(--ink-900);
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1.3;
}

.award-ranking {
  display: grid;
  min-width: 10.6rem;
  padding-left: 1rem;
  border-left: 1px solid rgba(24, 24, 27, 0.1);
  color: var(--text-soft);
  font-family: var(--font-ui);
  line-height: 1.2;
}

.award-ranking span {
  font-size: 0.73rem;
  font-weight: 650;
}

.award-ranking strong {
  margin: 0.16rem 0;
  color: var(--ink-900);
  font-size: 1.28rem;
  letter-spacing: 0;
  line-height: 1;
}

.award-ranking small {
  color: var(--text-soft);
  font-size: 0.72em;
  font-weight: 650;
}

p,
li {
  text-wrap: pretty;
}

.hero-actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  border: 1px solid rgba(24, 24, 27, 0.08);
  border-radius: 14px !important;
  box-shadow: none !important;
  font-family: "Noto Sans SC", "Segoe UI", sans-serif !important;
  font-size: 0.94rem !important;
  font-weight: 600 !important;
  height: auto !important;
  padding: 0.8rem 1.15rem !important;
  transition: border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.button:hover {
  transform: none;
}

.action-primary {
  background: var(--ink-900) !important;
  color: var(--text-inverse) !important;
  border-color: var(--ink-900) !important;
}

.action-secondary {
  background: rgba(255, 255, 255, 0.72) !important;
  color: var(--ink-900) !important;
  border: 1px solid rgba(24, 24, 27, 0.08) !important;
}

.action-primary:hover,
.action-secondary:hover {
  box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.04) !important;
}

.info-card,
.layer-card,
.platform-card,
.contract-card,
.reading-card,
.mini-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(24, 24, 27, 0.08);
  box-shadow: var(--shadow-sm);
}

.info-card,
.layer-card,
.platform-card,
.contract-card,
.reading-card,
.mini-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(24, 24, 27, 0.08);
  box-shadow: var(--shadow-sm);
}

.info-card h3,
.platform-card h3,
.contract-card h3,
.reading-card strong {
  font-family: var(--font-display);
  color: var(--ink-900);
  letter-spacing: -0.01em;
}

.info-card ul,
.metrics-panel ul {
  margin: 0;
  padding-left: 1.15rem;
}

.info-card li,
.metrics-panel li {
  margin-bottom: 0.6rem;
}

.section-shell {
  padding: 4.25rem 1.5rem;
}

.section-shell.alt {
  background: rgba(250, 249, 245, 0.7);
  border-top: 1px solid rgba(24, 24, 27, 0.05);
  border-bottom: 1px solid rgba(24, 24, 27, 0.05);
}

.section-head {
  margin-bottom: 1.8rem;
  max-width: 760px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.45rem);
  line-height: 1.14;
  margin: 0 0 0.85rem;
}

.card-grid {
  display: grid;
  gap: 1.2rem;
}

.artifact-grid {
  margin-top: 1.2rem;
}

.card-grid.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-grid.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.platform-card,
.contract-card,
.reading-card {
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.25rem;
}

.info-card.emphasis {
  background: rgba(255, 250, 245, 0.9);
}

.info-card h3,
.platform-card h3,
.contract-card h3 {
  margin: 0 0 0.8rem;
  font-size: 1.18rem;
}

.callout,
.mode-banner {
  margin-top: 1.4rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(212, 162, 127, 0.35);
  background: rgba(255, 247, 240, 0.88);
  padding: 1rem 1.2rem;
  color: var(--text-strong);
}

.compare-browser {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  gap: 1.6rem;
  align-items: start;
}

.compare-sidebar {
  display: grid;
  gap: 0.7rem;
  position: sticky;
  top: 5.6rem;
}

.compare-tab {
  width: 100%;
  border: 1px solid rgba(24, 24, 27, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
  color: var(--text-strong);
  cursor: pointer;
  display: block;
  padding: 0.9rem 1rem 0.95rem;
  text-align: left;
  transition: border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.compare-tab:hover {
  border-color: rgba(24, 24, 27, 0.16);
  background: rgba(255, 255, 255, 0.92);
}

.compare-tab.is-active {
  background: rgba(255, 250, 245, 0.96);
  border-color: rgba(212, 162, 127, 0.45);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.compare-tab-body {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  min-width: 0;
}

.compare-tab-body strong {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.compare-tab-body span {
  color: var(--text-soft);
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  flex-shrink: 0;
}

.compare-stage {
  min-width: 0;
}

.compare-stage-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(24, 24, 27, 0.08);
}

.compare-stage-kicker {
  margin: 0 0 0.3rem;
  color: var(--text-soft);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.compare-stage-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.9rem;
  letter-spacing: -0.03em;
}

.compare-stage-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.compare-metric {
  display: grid;
  gap: 0.16rem;
  padding: 0.8rem 0.95rem;
  border-radius: 14px;
  border: 1px solid rgba(24, 24, 27, 0.08);
  background: rgba(255, 255, 255, 0.78);
  min-width: 130px;
}

.compare-metric strong {
  color: var(--text-soft);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.compare-metric span {
  color: var(--ink-900);
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  word-break: break-word;
}

.compare-code-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}

.compare-code-panel {
  min-width: 0;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(24, 24, 27, 0.08);
  background: rgba(255, 255, 255, 0.86);
  overflow: hidden;
}

.compare-code-panel-accent {
  border-color: rgba(212, 162, 127, 0.38);
}

.compare-code-head {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid rgba(24, 24, 27, 0.08);
  background: rgba(253, 253, 247, 0.9);
}

.compare-code-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.compare-code-block {
  margin: 0;
  min-height: 405px;
  max-height: 540px;
  overflow: auto;
  padding: 1rem 1.05rem 1.15rem;
  border-top: 1px solid rgba(24, 24, 27, 0.06);
  background: linear-gradient(180deg, #fffefd, #fbfaf6);
  color: #1f2430;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.79rem;
  line-height: 1.6;
  white-space: pre;
  scrollbar-width: thin;
  scrollbar-color: rgba(24, 24, 27, 0.28) rgba(24, 24, 27, 0.05);
  overscroll-behavior: contain;
}

.compare-code-block code {
  display: block;
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: inherit;
  line-height: inherit;
}

.compare-code-block::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.compare-code-block::-webkit-scrollbar-track {
  background: rgba(24, 24, 27, 0.05);
}

.compare-code-block::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 999px;
  background: rgba(24, 24, 27, 0.28);
  background-clip: padding-box;
}

.compare-code-block::-webkit-scrollbar-thumb:hover {
  background: rgba(24, 24, 27, 0.46);
  background-clip: padding-box;
}

.artifact-preview::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.compare-code-block .tok-comment {
  color: #8a8f99;
}

.compare-code-block .tok-string {
  color: #2f7d4f;
}

.compare-code-block .tok-keyword {
  color: #b15c2f;
}

.compare-code-block .tok-number {
  color: #2d6f9f;
}

.compare-code-block .tok-builtin {
  color: #6b56b3;
}

.compare-code-block .tok-decorator {
  color: #9a6b18;
}

.layer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.layer-card {
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
}

.layer-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, rgba(212, 162, 127, 0.85), rgba(212, 162, 127, 0.35));
}

.layer-index {
  display: inline-flex;
  margin-bottom: 1rem;
  color: var(--accent);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.split-note,
.metrics-panel,
.governance-grid,
.contract-grid,
.reading-grid {
  display: grid;
  gap: 1rem;
}

.split-note,
.metrics-panel {
  margin-top: 1.4rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.split-note > div,
.metrics-panel > div {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(24, 24, 27, 0.08);
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0.95rem;
  align-items: start;
  padding: 1rem 1.05rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(24, 24, 27, 0.08);
  box-shadow: var(--shadow-sm);
}

.timeline-item span {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(24, 24, 27, 0.04);
  border: 1px solid rgba(24, 24, 27, 0.08);
  color: var(--ink-900);
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
}

.timeline-item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.timeline-item p {
  margin: 0;
  color: var(--text-soft);
}

.timeline.compact {
  margin-bottom: 1.3rem;
  margin-top: 1.4rem;
}

.pipeline-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.pipeline-step {
  border-radius: var(--radius-lg);
  padding: 1.05rem;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(24, 24, 27, 0.08);
  text-align: center;
}

.pipeline-step strong {
  display: block;
  font-family: var(--font-ui);
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.pipeline-step span {
  color: var(--text-soft);
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-size: 0.94rem;
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
}

.governance-grid {
  margin-top: 1.3rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mini-card {
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.mini-card strong {
  display: block;
  font-family: var(--font-display);
  margin-bottom: 0.3rem;
}

.mini-card span {
  color: var(--text-soft);
}

.contract-grid,
.reading-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mode-list {
  margin-top: 0.8rem;
  border-top: 1px solid rgba(24, 24, 27, 0.08);
}

.mode-row {
  display: grid;
  grid-template-columns: minmax(120px, 160px) minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
  padding: 1.35rem 0;
  border-bottom: 1px solid rgba(24, 24, 27, 0.08);
}

.mode-label {
  padding-top: 0.1rem;
}

.mode-name {
  display: inline-flex;
  color: var(--ink-800);
  font-family: var(--font-ui);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.mode-content h3 {
  margin: 0 0 0.45rem;
  font-size: 1.12rem;
}

.mode-content p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.8;
}

.artifact-preview {
  margin-top: 1.4rem;
  padding: 1.2rem 1.3rem !important;
  border-radius: var(--radius-lg) !important;
  border: 1px solid rgba(24, 24, 27, 0.08) !important;
  background: #111114 !important;
  color: #f4f4f5 !important;
  box-shadow: var(--shadow-sm);
  overflow: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.artifact-preview code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.platform-card span {
  display: inline-flex;
  margin-top: 0.7rem;
  color: var(--accent);
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
}

.platform-card.featured {
  border-color: rgba(15, 95, 99, 0.3);
  background: linear-gradient(180deg, rgba(255, 253, 250, 0.96), rgba(157, 214, 203, 0.28));
}

.footer {
  background: #111114;
  color: rgba(250, 250, 250, 0.76);
  padding: 3.5rem 1.5rem 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer h3 {
  margin: 0 0 0.7rem;
  color: var(--text-inverse);
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.footer p {
  margin: 0;
}

.scroll-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 50;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: var(--ink-900);
  color: white;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.section-map-container {
  position: fixed;
  top: 5.2rem;
  right: 1.5rem;
  z-index: 45;
}

.section-map-btn {
  border: 1px solid rgba(24, 24, 27, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-sm);
  color: var(--ink-900);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  font-weight: 700;
  padding: 0.85rem 1rem;
}

.section-map-btn .dropdown-arrow {
  font-size: 0.82rem;
  transition: transform var(--transition);
}

.section-map-btn.active .dropdown-arrow {
  transform: rotate(180deg);
}

.section-map-dropdown {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  width: 300px;
  max-width: calc(100vw - 2rem);
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(24, 24, 27, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.section-map-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem 0.7rem;
  border-bottom: 1px solid rgba(24, 24, 27, 0.08);
}

.dropdown-header h4 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 1rem;
}

.close-btn {
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  height: 34px;
  width: 34px;
}

.section-links {
  padding: 0.75rem;
}

.section-link {
  display: flex;
  align-items: center;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-family: "Noto Sans SC", "Segoe UI", sans-serif;
  padding: 0.72rem 0.85rem;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.section-link:hover,
.section-link.active {
  background: rgba(24, 24, 27, 0.05);
  color: var(--ink-900);
  transform: translateX(3px);
}

.is-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 420ms ease, transform 420ms ease;
}

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

@media screen and (max-width: 1100px) {
  .hero-grid,
  .compare-browser,
  .layer-grid,
  .card-grid.three-up,
  .contract-grid,
  .reading-grid,
  .footer-grid,
  .pipeline-flow,
  .governance-grid {
    grid-template-columns: 1fr;
  }

  .pipeline-arrow {
    transform: rotate(90deg);
  }

  .compare-sidebar {
    position: static;
  }

  .compare-code-grid {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 900px) {
  .card-grid.two-up,
  .split-note,
  .metrics-panel {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .mode-row {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .compare-stage-head {
    align-items: start;
    flex-direction: column;
  }

  .compare-stage-metrics {
    justify-content: flex-start;
  }
}

@media screen and (max-width: 768px) {
  .topbar-inner {
    padding: 0.9rem 1rem;
  }

  .topbar-nav {
    display: none;
  }

  .hero-shell,
  .banner-overview-shell,
  .section-shell,
  .footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-shell {
    padding-top: 3.4rem;
  }

  .hero-copy {
    padding-top: 1rem;
  }

  .hero-copy h1 {
    font-size: 2.8rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .timeline-item {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .timeline-item span {
    width: 48px;
    height: 48px;
  }

  .section-map-container {
    right: 1rem;
    top: auto;
    bottom: 5.6rem;
  }

  .section-map-dropdown {
    right: 0;
    top: auto;
    bottom: calc(100% + 0.6rem);
  }

  .scroll-to-top {
    right: 1rem;
    bottom: 1rem;
  }
}

@media screen and (max-width: 600px) {
  .award-highlight {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.8rem;
  }

  .award-ranking {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.55rem;
    min-width: 0;
    padding-left: 0;
    border-left: 0;
  }

  .award-ranking strong {
    margin: 0;
  }
}