:root {
  --color-bg: #0A0A0A;
  --color-bg-deep: #050505;
  --color-panel: #2E2E2E;
  --color-gold: #D4AF37;
  --color-gold-dark: #B8860B;
  --color-violet: #2A1B3D;
  --color-crimson: #8E2A1F;
  --color-blue: #00BFFF;
  --color-text: #F5F0E1;
  --color-muted: #9AA0A6;
  --color-line: rgba(212, 175, 55, 0.28);

  --font-display: "Montserrat", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --type-h1: clamp(2rem, 5vw, 3.5rem);
  --type-h2: clamp(1.5rem, 3vw, 2.2rem);
  --type-h3: 1.2rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background:
    radial-gradient(ellipse at 18% -8%, rgba(42, 27, 61, 0.55), transparent 40%),
    radial-gradient(ellipse at 92% 34%, rgba(142, 42, 31, 0.2), transparent 46%),
    var(--color-bg);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin: 0 0 0.5em;
  line-height: 1.25;
}

h1 {
  font-size: var(--type-h1);
}

h2 {
  font-size: var(--type-h2);
}

h3 {
  font-size: var(--type-h3);
}

p {
  margin: 0 0 1em;
}

a {
  color: inherit;
}

a,
button {
  -webkit-tap-highlight-color: transparent;
}

img {
  max-width: 100%;
  height: auto;
}

button {
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

ul,
ol {
  padding-left: 1.2rem;
}

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

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

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

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

.main-content {
  min-height: 72vh;
  outline: none;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container--narrow {
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container--wide {
  max-width: 1500px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 3vw, 2.5rem);
}

.col-3 {
  grid-column: span 3;
}

.col-4 {
  grid-column: span 4;
}

.col-6 {
  grid-column: span 6;
}

.col-8 {
  grid-column: span 8;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}

.content-grid__main {
  grid-column: 1 / span 8;
  min-width: 0;
}

.content-grid__side {
  grid-column: 9 / span 4;
  min-width: 0;
}

.content-block {
  max-width: 780px;
  line-height: 1.9;
  color: #C9C5C0;
}

.content-block p {
  margin: 0 0 1.2em;
}

.content-block code {
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.2);
  padding: 0.1em 0.4em;
  font-size: 0.9em;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 3000;
  padding: 0.55rem 1.1rem;
  background: var(--color-gold);
  color: var(--color-bg);
  border-radius: 2px;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  transform: translateY(-220%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}

.site-header::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-violet) 55%, var(--color-crimson) 85%, var(--color-blue) 100%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.65rem var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  background: rgba(212, 175, 55, 0.06);
}

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

.brand__text strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.brand__text span {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  white-space: nowrap;
  text-transform: uppercase;
  font-family: var(--font-display);
  font-weight: 600;
}

.site-nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: block;
  padding: 0.5rem 0.85rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-bottom: 2px solid transparent;
  transition: color 0.18s ease, border-bottom-color 0.18s ease, background 0.18s ease;
}

.site-nav__link:hover {
  color: var(--color-gold);
}

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

.site-header__aside {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  margin-left: auto;
}

.version-block {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
}

.version-block__label {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.version-block__num {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  text-decoration: none;
  border: 1px solid rgba(212, 175, 55, 0.45);
  padding: 0.28rem 0.6rem;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.version-block__num:hover,
.version-block__num:focus-visible {
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.1);
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  padding: 0.55rem 0.6rem;
  border: 1px solid rgba(212, 175, 55, 0.45);
  background: rgba(212, 175, 55, 0.04);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  margin: 4px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-footer {
  position: relative;
  background: var(--color-bg-deep);
  border-top: 1px solid rgba(212, 175, 55, 0.3);
}

.site-footer::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.75), transparent);
}

.site-footer__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) var(--space-4);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.site-footer__logo {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin: 0 0 var(--space-1);
  line-height: 1.3;
}

.site-footer__logo span {
  display: block;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.site-footer__desc {
  max-width: 320px;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin: 0;
}

.site-footer__title {
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}

.site-footer__links,
.site-footer__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  font-size: 0.88rem;
}

.site-footer__links a {
  color: #C9C5C0;
  text-decoration: none;
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--color-gold);
  padding-left: 0.25rem;
}

.site-footer__contact li {
  color: var(--color-muted);
  line-height: 1.7;
}

.site-footer__bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
  font-size: 0.78rem;
  color: #777;
}

.back-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 2000;
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-gold);
  background: rgba(10, 10, 10, 0.82);
  color: var(--color-gold);
  font-size: 1.25rem;
  line-height: 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
}

.back-top:hover,
.back-top:focus-visible {
  background: rgba(212, 175, 55, 0.12);
}

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

.section {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) var(--space-4);
}

.section--full {
  max-width: none;
}

.section__header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section__index {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  border: 1px solid rgba(212, 175, 55, 0.4);
  background: rgba(212, 175, 55, 0.06);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.section__title {
  font-size: var(--type-h2);
  margin: 0;
}

.section__intro {
  max-width: 560px;
  color: var(--color-muted);
  font-size: 1.02rem;
  margin: 0;
}

.hero-angled {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--space-4);
  min-height: 540px;
  align-items: stretch;
  position: relative;
}

.hero-angled__primary {
  background:
    linear-gradient(135deg, rgba(42, 27, 61, 0.9), rgba(10, 10, 10, 0.5)),
    var(--color-bg);
  border: 1px solid rgba(212, 175, 55, 0.3);
  padding: clamp(2rem, 5vw, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-angled__primary::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  transform: rotate(45deg);
}

.hero-angled__secondary {
  background:
    linear-gradient(225deg, rgba(142, 42, 31, 0.5), rgba(10, 10, 10, 0.92)),
    var(--color-bg);
  border: 1px solid rgba(212, 175, 55, 0.2);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-hero {
  padding: clamp(3.5rem, 9vw, 8rem) var(--space-4);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  background:
    radial-gradient(ellipse at 78% 12%, rgba(42, 27, 61, 0.8), transparent 55%),
    radial-gradient(ellipse at 8% 92%, rgba(142, 42, 31, 0.32), transparent 50%),
    var(--color-bg);
}

.page-hero__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.page-hero__title {
  margin: 0 0 var(--space-2);
}

.page-hero__desc {
  color: var(--color-muted);
  max-width: 560px;
  font-size: 1.05rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.82rem;
}

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

.breadcrumb__link:hover,
.breadcrumb__link:focus-visible {
  color: var(--color-gold);
}

.breadcrumb__sep {
  color: rgba(212, 175, 55, 0.6);
}

.breadcrumb__current {
  color: var(--color-gold);
  font-weight: 600;
}

.btn {
  display: inline-block;
  padding: 0.72rem 1.55rem;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

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

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

.btn--ghost {
  background: transparent;
  border-color: rgba(212, 175, 55, 0.65);
  color: var(--color-text);
}

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

.card {
  display: block;
  text-decoration: none;
  background: linear-gradient(160deg, rgba(42, 27, 61, 0.62), rgba(10, 10, 10, 0.92));
  border: 1px solid rgba(212, 175, 55, 0.18);
  padding: var(--space-4);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.card:hover,
.card:focus-visible {
  border-color: rgba(212, 175, 55, 0.55);
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.5);
}

.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.5rem;
  transition: color 0.18s ease;
}

.card:hover .card__title,
.card:focus-visible .card__title {
  color: var(--color-gold);
}

.card__text {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.02);
}

.tag--gold {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.06);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: rgba(10, 10, 10, 0.6);
  padding: var(--space-3);
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  font-size: 0.85rem;
}

.legend__swatch {
  width: 12px;
  height: 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  flex-shrink: 0;
}

.legend__swatch--gold {
  background: var(--color-gold);
}

.legend__swatch--violet {
  background: var(--color-violet);
}

.legend__swatch--crimson {
  background: var(--color-crimson);
}

.legend__swatch--blue {
  background: var(--color-blue);
}

.route-panel {
  background: rgba(10, 10, 10, 0.82);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-top: 2px solid var(--color-gold);
  padding: var(--space-4);
}

.route-panel__title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 var(--space-3);
}

.route-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.route-panel__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.55rem 0;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: color 0.15s ease, border-bottom-color 0.15s ease;
}

.route-panel__link:hover,
.route-panel__link:focus-visible {
  color: var(--color-gold);
  border-bottom-color: rgba(212, 175, 55, 0.4);
}

.coord {
  display: inline-block;
  flex-shrink: 0;
  padding: 0.08rem 0.4rem;
  border: 1px solid rgba(184, 134, 11, 0.55);
  color: var(--color-gold-dark);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: rgba(184, 134, 11, 0.06);
}

.timeline {
  display: grid;
  gap: var(--space-3);
  padding-left: 1.5rem;
  border-left: 1px solid rgba(212, 175, 55, 0.35);
}

.timeline__item {
  position: relative;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -1.95rem;
  top: 0.45rem;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-gold);
  background: var(--color-bg);
}

.timeline__date {
  display: block;
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.15rem;
}

.accordion {
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: var(--color-panel);
  transition: border-color 0.2s ease;
}

.accordion + .accordion {
  margin-top: 0.8rem;
}

.accordion[data-open] {
  border-color: rgba(212, 175, 55, 0.55);
}

.accordion__toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: 1rem 1.25rem;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  transition: color 0.15s ease;
}

.accordion__toggle:hover,
.accordion__toggle:focus-visible {
  color: var(--color-gold);
}

.accordion__icon {
  flex-shrink: 0;
  color: var(--color-gold);
  transition: transform 0.25s ease;
}

.accordion[data-open] .accordion__icon {
  transform: rotate(45deg);
}

.accordion__panel {
  padding: 0 1.25rem 1.25rem;
  color: #C9C5C0;
  font-size: 0.92rem;
}

.accordion__panel[hidden] {
  display: none;
}

.divider {
  border: 0;
  height: 1px;
  margin: var(--space-5) 0;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.5), transparent);
}

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 180px;
  overflow: hidden;
  background: linear-gradient(140deg, rgba(42, 27, 61, 0.72), rgba(10, 10, 10, 0.94));
  border: 1px solid rgba(212, 175, 55, 0.25);
}

.media-frame::after {
  content: "MEDIA";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(212, 175, 55, 0.55);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.img-responsive {
  display: block;
  width: 100%;
  height: auto;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 1023px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.6rem 1rem 1.1rem;
    background: rgba(10, 10, 10, 0.97);
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.55);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    overflow-y: auto;
    max-height: calc(100vh - 70px);
  }

  .site-nav[data-open] {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav__list {
    display: grid;
    gap: 0.1rem;
  }

  .site-nav__link {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-toggle {
    display: block;
  }

  .content-grid__main,
  .content-grid__side {
    grid-column: 1 / -1;
  }

  .grid-12 .col-3,
  .grid-12 .col-4 {
    grid-column: span 6;
  }

  .grid-12 .col-6,
  .grid-12 .col-8 {
    grid-column: span 12;
  }

  .hero-angled {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-angled__secondary {
    min-height: 240px;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    gap: var(--space-2);
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .brand__text strong {
    font-size: 1.1rem;
  }

  .brand__text span {
    font-size: 0.55rem;
  }

  .brand__mark {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .version-block__label {
    display: none;
  }

  .version-block__num {
    font-size: 0.68rem;
    padding: 0.2rem 0.45rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .site-footer__brand {
    padding-bottom: 0.5rem;
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: 0.4rem;
  }

  .grid-12 .col-3,
  .grid-12 .col-4,
  .grid-12 .col-6,
  .grid-12 .col-8 {
    grid-column: span 12;
  }

  .section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-angled {
    gap: 1rem;
  }

  .hero-angled__primary,
  .hero-angled__secondary {
    padding: 1.5rem;
  }

  .page-hero {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .container,
  .container--narrow,
  .container--wide {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .back-top {
    right: 1rem;
    bottom: 1rem;
    width: 42px;
    height: 42px;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    justify-content: space-between;
  }

  .site-nav {
    margin-inline: auto;
  }
}