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

html {
  font-size: 100%;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

html, body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style: none;
}

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

input, button, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
}

:root {
  --color-primary: #0A1E3D;
  --color-primary-dark: #050E1D;
  --color-gold: #D4AF37;
  --color-gold-light: #E8C86A;
  --color-gold-dark: #B08D1F;
  --color-red: #E63946;
  --color-white: #FFFFFF;
  --color-gray: #F5F7FA;
  --color-text: #1A1A1A;
  --color-muted: #8B9DB0;
  --color-line: #1E3A5F;
  --font-heading: "Oswald", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Serif", "Songti SC", "SimSun", serif;
  --header-height: 72px;
  --container-width: 1280px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3rem);
  letter-spacing: 0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: 0.03em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1em;
}

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

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 1001;
  padding: 12px 20px;
  background: var(--color-gold);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 12px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.scroll-progress::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(to right, var(--color-gold), var(--color-gold-light));
  transform: scaleX(var(--progress, 0));
  transform-origin: left top;
  transition: transform 0.1s linear;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.content {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: clamp(48px, 6vw, 88px) 0;
}

.section--dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section--light {
  background: var(--color-gray);
}

.section--white {
  background: var(--color-white);
}

.section-kicker {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  border-left: 3px solid var(--color-gold);
  padding-left: 12px;
  margin-bottom: 12px;
}

.section--dark .section-kicker {
  color: var(--color-gold);
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section--dark .section-title {
  color: var(--color-white);
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 720px;
  margin-bottom: 24px;
}

.section--dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.accent-line {
  width: 56px;
  height: 3px;
  border: none;
  background: var(--color-gold);
  margin: 0 0 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.btn--gold {
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--color-gold-light);
  color: var(--color-primary-dark);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-gold);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-primary-dark);
  border-color: var(--color-gold-light);
  color: var(--color-white);
}

.btn--red {
  background: var(--color-red);
  color: var(--color-white);
}

.btn--red:hover,
.btn--red:focus-visible {
  background: #C92F3B;
  color: var(--color-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.grid {
  display: grid;
  gap: 24px;
}

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

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

.card {
  background: var(--color-white);
  border: 1px solid #E5E8EE;
  border-top: 3px solid var(--color-gold);
  border-radius: 0;
  box-shadow: 0 2px 10px rgba(10, 30, 61, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(10, 30, 61, 0.14);
}

.card__body {
  padding: 24px;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
}

.card__meta {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.index-list {
  border-top: 1px solid var(--color-line);
  margin: 0;
  padding: 0;
  list-style: none;
}

.index-list li {
  border-bottom: 1px solid var(--color-line);
}

.index-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 4px;
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--color-white);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.index-list a:hover,
.index-list a:focus-visible {
  color: var(--color-gold);
  padding-left: 12px;
}

.index-list__meta {
  font-size: 0.8125rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.stat {
  padding: 20px 24px;
  background: rgba(10, 30, 61, 0.03);
  border-left: 3px solid var(--color-gold);
  border-radius: 0;
}

.section--dark .stat {
  background: rgba(212, 175, 55, 0.08);
}

.stat__value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-gold-dark);
}

.section--dark .stat__value {
  color: var(--color-gold);
}

.stat__label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 6px;
}

.timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-gold), var(--color-line));
}

.timeline__item {
  position: relative;
  padding: 0 0 32px 16px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--color-white);
  border: 2px solid var(--color-gold);
  transform: rotate(45deg);
}

.section--dark .timeline__item::before {
  background: var(--color-primary);
}

.timeline__year {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-gold-dark);
  line-height: 1.2;
}

.section--dark .timeline__year {
  color: var(--color-gold);
}

.timeline__text {
  color: inherit;
  opacity: 0.85;
  font-size: 0.9375rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  border: 1px solid var(--color-gold);
  border-radius: 0;
  background: transparent;
}

.section--dark .tag {
  color: var(--color-gold);
}

.tag--red {
  border-color: var(--color-red);
  color: var(--color-red);
}

.divider {
  height: 1px;
  border: none;
  background: var(--color-line);
  margin: 40px 0;
}

.divider--gold {
  background: linear-gradient(to right, var(--color-gold), transparent);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 104px;
  padding-bottom: 24px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

.breadcrumbs--compact {
  padding-top: 24px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--color-muted);
}

.breadcrumbs a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.breadcrumbs [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

.section--dark .breadcrumbs a {
  color: rgba(255, 255, 255, 0.7);
}

.section--dark .breadcrumbs a:hover {
  color: var(--color-gold);
}

.section--dark .breadcrumbs [aria-current="page"] {
  color: var(--color-white);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%);
  border: 1px solid var(--color-line);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.media-frame--square::before {
  padding-top: 100%;
}

.media-frame--portrait::before {
  padding-top: 133.33%;
}

.media-frame--wide::before {
  padding-top: 42%;
}

.media-frame--grid::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image:
    linear-gradient(rgba(212, 175, 55, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 175, 55, 0.1) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 1;
}

.media-frame__img,
.media-frame img {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__placeholder {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  text-align: center;
  padding: 16px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(5, 14, 29, 0.85) 0%, rgba(5, 14, 29, 0.45) 65%, rgba(5, 14, 29, 0) 100%);
  border-bottom: 1px solid rgba(30, 58, 95, 0.45);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold) 20%, var(--color-gold) 80%, transparent);
  opacity: 0.8;
}

.site-header[data-scrolled="true"] {
  background: rgba(10, 30, 61, 0.97);
  border-bottom-color: var(--color-line);
  box-shadow: 0 4px 24px rgba(5, 14, 29, 0.45);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: var(--header-height);
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-brand__mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  border: 1px solid var(--color-gold);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  line-height: 1;
}

.site-brand__mark::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -3px;
  width: 7px;
  height: 7px;
  background: var(--color-gold);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-brand__title {
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-white);
  white-space: nowrap;
}

.site-brand__tagline {
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
}

.site-brand--footer .site-brand__title {
  color: var(--color-white);
  font-size: 1.375rem;
}

.site-brand--footer .site-brand__tagline {
  color: var(--color-muted);
}

.site-nav {
  display: block;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-white);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-gold);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.site-search-toggle,
.site-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: var(--color-gold);
  background: transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.site-search-toggle:hover,
.site-search-toggle:focus-visible,
.site-nav-toggle:hover,
.site-nav-toggle:focus-visible {
  background: rgba(212, 175, 55, 0.12);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.site-search-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: square;
}

.site-nav-toggle {
  display: none;
}

.site-nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 3px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.search-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(5, 14, 29, 0.98);
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 16px 40px rgba(5, 14, 29, 0.55);
  padding: 28px 0 36px;
}

.search-panel__inner {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.search-panel__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.search-panel__field {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-line);
  background: var(--color-primary-dark);
  padding: 0 16px;
  margin-bottom: 20px;
  transition: border-color 0.2s ease;
}

.search-panel__field:focus-within {
  border-color: var(--color-gold);
}

.search-panel__input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 13px 0;
}

.search-panel__input::placeholder {
  color: var(--color-muted);
}

.search-panel__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.search-panel__list a {
  display: block;
  padding: 10px 14px;
  border-left: 2px solid transparent;
  font-family: var(--font-heading);
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.search-panel__list a:hover,
.search-panel__list a:focus-visible {
  border-left-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.08);
  color: var(--color-gold);
}

.search-panel__empty {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-white);
  border-top: 4px solid var(--color-gold);
}

.site-footer__banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 32px 24px;
  border-bottom: 1px solid var(--color-line);
}

.site-footer__banner-text {
  min-width: 0;
}

.site-footer__kicker {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.site-footer__slogan {
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-gold);
  margin: 0;
  line-height: 1.2;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.9fr 1.3fr;
  gap: 40px;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 56px 24px 48px;
}

.site-footer__col,
.site-footer__col--brand,
.site-footer__col--nav,
.site-footer__col--legal,
.site-footer__col--contact {
  min-width: 0;
}

.site-footer__trust {
  margin: 20px 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 360px;
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.site-footer__links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__links a {
  display: inline-block;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.5;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--color-gold);
  padding-left: 6px;
}

.site-footer__contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
}

.site-footer__contact-list strong {
  color: var(--color-gold);
  font-weight: 600;
}

.site-footer__legal-note {
  margin-top: 16px;
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.site-footer__bottom {
  border-top: 1px solid var(--color-line);
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 20px 24px;
}

.site-footer__copyright,
.site-footer__icp {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0;
}

.site-footer__backtop {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--color-gold);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: transparent;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.site-footer__backtop:hover,
.site-footer__backtop:focus-visible {
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

@media (max-width: 991px) {
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    padding: 14px 24px 22px;
    background: rgba(5, 14, 29, 0.99);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 20px 44px rgba(5, 14, 29, 0.55);
  }

  .site-nav[data-open] {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__item {
    border-bottom: 1px solid rgba(30, 58, 95, 0.5);
  }

  .site-nav__item:last-child {
    border-bottom: none;
  }

  .site-nav__link {
    padding: 16px 8px;
    font-size: 1.0625rem;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(212, 175, 55, 0.1);
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .site-footer__col--brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 64px;
  }

  .site-header__inner {
    height: var(--header-height);
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-brand__mark {
    width: 38px;
    height: 38px;
    font-size: 12px;
  }

  .site-brand__title {
    font-size: 1.0625rem;
  }

  .site-brand__tagline {
    display: none;
  }

  .site-header__actions {
    gap: 6px;
  }

  .site-search-toggle,
  .site-nav-toggle {
    width: 38px;
    height: 38px;
  }

  .search-panel__list {
    grid-template-columns: 1fr;
  }

  .container,
  .content {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    padding-top: 40px;
  }

  .site-footer__banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

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

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