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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
  background:
    radial-gradient(circle at 14% -8%, rgba(46, 196, 182, 0.08), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(255, 107, 53, 0.07), transparent 34%),
    var(--color-primary);
  -webkit-font-smoothing: antialiased;
}

:root {
  --color-primary: #0A1A2F;
  --color-accent: #FF6B35;
  --color-gold: #F7B32B;
  --color-black: #0B0F19;
  --color-surface: #16273D;
  --color-text: #F5F2EB;
  --color-secondary: #E4572E;
  --color-info: #2EC4B6;
  --color-muted: #A8B2C1;
  --color-border: #1D1D1D;
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Heiti SC", system-ui, sans-serif;
  --font-body: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --header-h: 4.5rem;
  --container-w: 1280px;
  --radius: 3px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.32);
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.75em;
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.28;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2rem, 2.4vw, 2.375rem);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.5rem, 1.8vw, 1.75rem);
  line-height: 1.32;
}

h3 {
  font-size: clamp(1.25rem, 1.4vw, 1.375rem);
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

a {
  color: var(--color-accent);
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-gold);
}

::selection {
  background: var(--color-accent);
  color: var(--color-black);
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.875rem;
  left: 0.875rem;
  z-index: 1200;
  padding: 0.625rem 1rem;
  transform: translateY(-220%);
  border-radius: 2px;
  background: var(--color-accent);
  color: var(--color-black);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.42);
  transition: transform 0.2s ease;
}

.skip-link:hover {
  color: var(--color-black);
}

.skip-link:focus {
  transform: translateY(0);
  color: var(--color-black);
}

.container,
.container-narrow {
  margin-inline: auto;
}

.container {
  width: min(100% - 2rem, var(--container-w));
}

.container-narrow {
  width: min(100% - 2rem, 900px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  vertical-align: middle;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 3px solid var(--color-gold);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-black);
  box-shadow: 0 6px 22px rgba(255, 107, 53, 0.32);
}

.btn-primary:hover {
  background: #ff7f4f;
  color: var(--color-black);
  box-shadow: 0 10px 26px rgba(255, 107, 53, 0.44);
}

.btn-ghost {
  border-color: rgba(245, 242, 235, 0.28);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(255, 107, 53, 0.22);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(10, 26, 47, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(247, 179, 43, 0.18);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.26);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
  color: var(--color-text);
  font-family: var(--font-heading);
  line-height: 1.2;
  text-decoration: none;
}

.brand:hover {
  color: var(--color-accent);
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  color: currentColor;
  filter: drop-shadow(0 2px 10px rgba(255, 107, 53, 0.28));
}

.brand-name {
  font-size: 1.1875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.brand-badge {
  margin-left: 0.25rem;
  padding: 0.2em 0.55em;
  border: 1px solid rgba(247, 179, 43, 0.4);
  border-radius: 2px;
  background: rgba(247, 179, 43, 0.06);
  color: var(--color-gold);
  font-size: 0.5625rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.875rem;
  border-radius: 999px;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.875rem;
  right: 0.875rem;
  bottom: 0.25rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-link:hover {
  color: var(--color-accent);
  background: rgba(255, 107, 53, 0.08);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.625rem;
  border: 1px solid rgba(245, 242, 235, 0.18);
  border-radius: 4px;
  background: rgba(245, 242, 235, 0.06);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--color-accent);
}

.nav-toggle:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: transform 0.25s ease, opacity 0.2s ease, background-color 0.2s ease;
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 5px;
}

.nav-toggle:hover .nav-toggle-bar {
  background: var(--color-accent);
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--color-accent);
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--color-accent);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
}

.scroll-progress::before {
  content: "";
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent), var(--color-info));
  transform: scaleX(var(--progress, 0));
  transform-origin: left;
  transition: transform 0.08s linear;
}

body.is-nav-open {
  overflow: hidden;
}

.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--color-black);
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-accent) 45%, var(--color-info) 100%);
  opacity: 0.65;
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  padding: 3.25rem 0 2.75rem;
}

.footer-brand {
  min-width: 0;
}

.brand--footer {
  color: var(--color-gold);
}

.brand--footer:hover {
  color: var(--color-accent);
}

.brand--footer .brand-mark {
  width: 2.25rem;
  height: 2.25rem;
}

.footer-desc {
  margin: 1rem 0 0.875rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
}

.footer-trust {
  margin: 0;
  padding-left: 0.75rem;
  border-left: 2px solid rgba(46, 196, 182, 0.5);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(245, 242, 235, 0.55);
}

.footer-col {
  min-width: 0;
}

.footer-col--nav .footer-links {
  max-width: 320px;
}

.footer-heading {
  margin: 0 0 1rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid rgba(247, 179, 43, 0.2);
  color: var(--color-gold);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-link {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  line-height: 1.5;
  text-decoration: none;
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
}

.footer-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.375rem 0;
}

.meta-label {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-info);
}

.footer-bottom {
  padding: 1.25rem 0;
  background: rgba(11, 15, 25, 0.8);
  border-top: 1px solid rgba(245, 242, 235, 0.08);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.footer-legal a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--color-gold);
}

.footer-icp {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.page-heading {
  padding: calc(var(--header-h) + 3.25rem) 0 1.5rem;
}

.page-title {
  margin-bottom: 0.75rem;
}

.page-subtitle {
  max-width: 680px;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-muted);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.breadcrumb li + li::before {
  content: "‹";
  margin: 0 0.375rem;
  color: var(--color-accent);
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
}

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

.section {
  position: relative;
  padding: 3.5rem 0;
}

.section--tight {
  padding: 2rem 0;
}

.section-index {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-index::before {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
}

.chapter {
  position: relative;
  padding: 3rem 0;
  border-top: 1px solid rgba(245, 242, 235, 0.08);
}

.chapter::after {
  content: attr(data-chapter);
  position: absolute;
  top: 1.5rem;
  right: 0;
  z-index: 0;
  font-family: var(--font-heading);
  font-size: clamp(4rem, 10vw, 8.5rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 242, 235, 0.09);
  pointer-events: none;
  user-select: none;
}

.chapter > * {
  position: relative;
  z-index: 1;
}

.chapter:first-of-type {
  border-top: 0;
}

.segment {
  display: grid;
  gap: 2rem 3rem;
  align-items: center;
}

.segment-media,
.segment-content {
  min-width: 0;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2,
.grid-3,
.grid-split {
  grid-template-columns: 1fr;
}

.panel {
  position: relative;
  padding: 1.75rem 1.5rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-accent));
  opacity: 0.75;
}

.panel:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: var(--shadow);
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.03), rgba(0, 0, 0, 0.04)), var(--color-surface);
}

.panel-title {
  margin: 0 0 0.375rem;
  font-size: 1.125rem;
  line-height: 1.42;
}

.panel-meta {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.panel-desc {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--color-muted);
}

.panel-link {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
}

.panel-link::after {
  content: "→";
  display: inline-block;
  margin-left: 0.375rem;
  transition: transform 0.2s ease;
}

.panel-link:hover::after {
  transform: translateX(4px);
}

.visual-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 107, 53, 0.26);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 28% 18%, rgba(46, 196, 182, 0.14), transparent 34%),
    radial-gradient(circle at 78% 76%, rgba(255, 107, 53, 0.18), transparent 42%),
    linear-gradient(165deg, #0d1b30 0%, #142c48 52%, #0a1626 100%);
}

.visual-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(247, 179, 43, 0.12) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(0deg, rgba(46, 196, 182, 0.09) 0 1px, transparent 1px 36px);
  opacity: 0.75;
}

.visual-frame::after {
  content: "";
  position: absolute;
  top: 14%;
  left: 14%;
  right: 14%;
  bottom: 14%;
  border: 1px solid rgba(245, 242, 235, 0.16);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 107, 53, 0.32) 0 3%, transparent 4%),
    radial-gradient(circle at center, rgba(247, 179, 43, 0.14) 0 42%, transparent 44%);
  box-shadow: 0 0 42px rgba(255, 107, 53, 0.16);
}

.visual-frame--wide {
  aspect-ratio: 16 / 9;
}

.visual-frame--tall {
  aspect-ratio: 3 / 4;
}

.visual-frame__label {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 0.375rem 0.75rem;
  border-top: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  border-top-right-radius: 3px;
  background: rgba(11, 15, 25, 0.88);
  color: var(--color-muted);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.visual-frame svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.stage-frame {
  position: relative;
  padding: 1.5rem;
  border: 1px solid rgba(245, 242, 235, 0.14);
  border-radius: 4px 28px 4px 4px;
  background:
    linear-gradient(135deg, rgba(255, 107, 53, 0.05) 25%, transparent 25.5%) 0 0 / 22px 22px,
    linear-gradient(315deg, rgba(46, 196, 182, 0.05) 25%, transparent 25.5%) 0 0 / 22px 22px,
    rgba(13, 27, 48, 0.66);
}

.stage-frame::before,
.stage-frame::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 30px;
  border: 3px solid var(--color-accent);
}

.stage-frame::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
  border-top-left-radius: 5px;
}

.stage-frame::after {
  right: -2px;
  bottom: -2px;
  border-top: 0;
  border-left: 0;
  border-bottom-right-radius: 5px;
}

.stage-frame-inner {
  position: relative;
  padding: 1.5rem;
  border: 1px solid rgba(245, 242, 235, 0.1);
  background: var(--color-surface);
}

.stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid rgba(247, 179, 43, 0.45);
  border-radius: 2px;
  background: rgba(247, 179, 43, 0.07);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stamp::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 8px rgba(247, 179, 43, 0.7);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 2px;
  background: rgba(46, 196, 182, 0.12);
  color: var(--color-info);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.tag--gold {
  background: rgba(247, 179, 43, 0.12);
  color: var(--color-gold);
}

.tag--orange {
  background: rgba(255, 107, 53, 0.12);
  color: var(--color-accent);
}

.tag--muted {
  background: rgba(168, 178, 193, 0.12);
  color: var(--color-muted);
}

.tag--alert {
  background: rgba(228, 87, 46, 0.12);
  color: var(--color-secondary);
}

.timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 2rem;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0.25rem;
  bottom: 0.25rem;
  left: 0.5rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-gold), var(--color-accent) 55%, var(--color-info));
  opacity: 0.45;
}

.timeline-item {
  position: relative;
  padding-bottom: 1.75rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 0.6rem;
  left: -1.75rem;
  width: 8px;
  height: 8px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 1px rgba(247, 179, 43, 0.5);
}

.stat {
  display: block;
}

.stat-number {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.stat-number small {
  margin-left: 0.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-muted);
}

.stat-label {
  display: block;
  margin-top: 0.375rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.index-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(245, 242, 235, 0.1);
  list-style: none;
}

.index-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(245, 242, 235, 0.08);
}

.index-no {
  flex-shrink: 0;
  min-width: 2.5em;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.index-item a {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
}

.index-item a:hover {
  color: var(--color-accent);
}

.index-date {
  flex-shrink: 0;
  margin-left: auto;
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.research {
  position: relative;
  padding: 1.75rem 1.5rem 1.75rem 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.research::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  border-radius: 3px 0 0 3px;
  background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-accent) 55%, var(--color-info) 100%);
}

.research h3,
.research h4 {
  margin: 1.25rem 0 0.5rem;
  font-family: var(--font-heading);
}

.research p {
  margin: 0 0 0.875rem;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--color-muted);
}

.research blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid rgba(247, 179, 43, 0.55);
  color: var(--color-muted);
  font-style: italic;
}

.research blockquote cite {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-style: normal;
  color: var(--color-gold);
}

.term-list {
  margin: 0;
  padding: 0;
}

.term-list dt {
  margin-bottom: 0.25rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-gold);
}

.term-list dd {
  margin: 0 0 0.875rem;
  padding-left: 1rem;
  border-left: 1px solid rgba(247, 179, 43, 0.18);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-muted);
}

.divider {
  height: 1px;
  margin: 2.5rem 0;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.35) 50%, transparent);
}

.lead {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.55s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
}

[data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .segment {
    grid-template-columns: 1fr 1fr;
  }

  .segment--reverse .segment-media {
    order: 2;
  }

  .segment--reverse .segment-content {
    order: 1;
  }
}

@media (min-width: 960px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-split {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .footer-grid {
    grid-template-columns: 1.2fr 0.8fr 1.1fr;
  }
}

@media (min-width: 720px) and (max-width: 959.98px) {
  .footer-grid {
    grid-template-columns: 1fr 0.8fr;
  }
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid rgba(247, 179, 43, 0.2);
    background: rgba(10, 26, 47, 0.98);
    box-shadow: 0 18px 32px rgba(0, 0, 0, 0.3);
    transition: max-height 0.3s ease;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1rem 1.25rem 1.5rem;
  }

  .nav-link {
    justify-content: flex-start;
    display: flex;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 1rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link::before {
    content: "";
    position: absolute;
    left: 0.5rem;
    top: 50%;
    width: 4px;
    height: 1.4em;
    border-radius: 2px;
    background: var(--color-accent);
    transform: translateY(-50%) scaleY(0);
    transition: transform 0.2s ease;
  }

  .nav-link[aria-current="page"]::before {
    transform: translateY(-50%) scaleY(1);
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 4.125rem;
  }

  .brand-name {
    font-size: 1.0625rem;
  }

  .brand-mark {
    width: 1.75rem;
    height: 1.75rem;
  }

  .brand-badge {
    display: none;
  }

  .page-heading {
    padding-top: calc(var(--header-h) + 2.5rem);
  }

  .section {
    padding: 2.5rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .panel:hover,
  .btn:hover {
    transform: none;
  }
}