/* ========== CSS Variables ========== */
:root {
  --color-primary: #0A192F;
  --color-primary-light: #112240;
  --color-primary-dark: #020C1B;
  --color-accent: #FF6B35;
  --color-accent-hover: #FF8A5C;
  --color-gold: #F7C873;
  --color-light: #F5F7FA;
  --color-dark: #1A1A1A;
  --color-muted: #8892B0;

  --font-body: "Noto Serif SC", "Source Serif Pro", Georgia, "Songti SC", SimSun, serif;
  --font-heading: "Noto Sans SC", Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;

  --container-width: 1280px;
  --header-height: 84px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --radius: 4px;

  --shadow-card: 0 4px 20px rgba(2, 12, 27, 0.25);
  --shadow-card-hover: 0 12px 32px rgba(2, 12, 27, 0.4);
  --shadow-panel: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ========== Reset & Base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-color: var(--color-accent) var(--color-primary-dark);
}

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

ul,
ol {
  padding-left: 0;
}

ul[class],
ol[class] {
  list-style: none;
}

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

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

button {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  color: inherit;
}

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

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

/* ========== Body ========== */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.92);
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 107, 53, 0.08), transparent 42%),
    radial-gradient(circle at 10% 60%, rgba(247, 200, 115, 0.05), transparent 32%),
    var(--color-primary);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-light);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(36px, 5vw, 64px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: 20px; }
h4 { font-size: 16px; }

p {
  margin: 0 0 var(--space-md);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

blockquote {
  border-left: 3px solid var(--color-accent);
  background: rgba(17, 34, 64, 0.5);
  margin: var(--space-lg) 0;
  padding: var(--space-sm) var(--space-lg);
  color: var(--color-muted);
  font-style: italic;
}

/* ========== Utilities ========== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

#main-content {
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 24px;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  padding: 12px 20px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: top 0.25s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 16px;
  outline: none;
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(2, 12, 27, 0.45);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background-color: rgba(2, 12, 27, 0.97);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: var(--header-height);
}

/* ========== Brand ========== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-light);
  text-decoration: none;
  flex-shrink: 0;
}

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

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -1px;
  border-radius: var(--radius);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.brand:hover .brand__mark,
.brand:focus-visible .brand__mark {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--color-gold);
}

/* ========== Navigation ========== */
.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: rgba(245, 247, 250, 0.85);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-light);
  background-color: rgba(255, 107, 53, 0.12);
}

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

.nav-link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--color-accent);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-accent);
  opacity: 0.7;
}

/* ========== Nav Toggle ========== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.1);
}

.nav-toggle__line {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-light);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease, background-color 0.25s ease;
}

.nav-toggle:hover .nav-toggle__line,
.nav-toggle[aria-expanded="true"] .nav-toggle__line {
  background: var(--color-accent);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Buttons & Tags ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: rgba(255, 107, 53, 0.12);
  border-color: var(--color-accent-hover);
  color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  border: 1px solid rgba(247, 200, 115, 0.5);
  border-radius: 999px;
  background: rgba(247, 200, 115, 0.08);
  white-space: nowrap;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}

.link-arrow::after {
  content: '→';
  font-family: var(--font-mono);
}

.link-arrow:hover,
.link-arrow:focus-visible {
  gap: 10px;
  color: var(--color-accent-hover);
}

/* ========== Breadcrumbs ========== */
.breadcrumbs {
  margin-bottom: var(--space-lg);
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  color: var(--color-muted);
}

.breadcrumbs__item:not(:last-child)::after {
  content: '/';
  margin: 0 8px;
  color: var(--color-accent);
}

.breadcrumbs__link {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumbs__link:hover,
.breadcrumbs__link:focus-visible {
  color: var(--color-accent);
}

.breadcrumbs__current {
  color: var(--color-light);
}

/* ========== Hero & Page Header ========== */
.page-hero {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
}

.page-hero__subtitle {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-md);
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-light);
  margin: 0;
  max-width: 14em;
}

.page-hero__lead {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 55ch;
  margin-top: var(--space-lg);
}

.page-header {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-header__title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-light);
  margin: 0;
}

/* ========== Editorial Grid ========== */
.editorial-grid {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: var(--space-2xl);
  align-items: start;
}

.editorial-rail {
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
  padding-top: var(--space-md);
  border-top: 3px solid var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

.editorial-rail__label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.editorial-rail__meta {
  margin: 0;
}

.editorial-main {
  min-width: 0;
}

/* ========== Sections ========== */
.section {
  margin-top: var(--space-3xl);
}

.section--light {
  background: var(--color-light);
  color: var(--color-dark);
  margin-top: 0;
  padding: var(--space-3xl) 0;
}

.section--light h1,
.section--light h2,
.section--light h3,
.section--light h4,
.section--light h5,
.section--light h6 {
  color: var(--color-primary-dark);
}

.section--light blockquote {
  background: rgba(10, 25, 47, 0.05);
  color: var(--color-dark);
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  border-bottom: 2px solid rgba(255, 255, 255, 0.15);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.section-index {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.85;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-light);
  margin: 0;
}

/* ========== Cards ========== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.data-card {
  background: var(--color-primary-light);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.data-card:hover,
.data-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(255, 107, 53, 0.4);
}

.data-card__title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted);
  margin: 0 0 var(--space-sm);
}

.data-card__value {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.data-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  margin-top: var(--space-sm);
}

/* ========== Status Panel ========== */
.status-panel {
  background: var(--color-primary-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.status-panel__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(17, 34, 64, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.status-panel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

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

.status-panel__dot--translucent {
  background: rgba(255, 255, 255, 0.2);
}

.status-panel__content {
  padding: var(--space-sm) var(--space-lg);
  font-size: 13px;
  color: rgba(245, 247, 250, 0.85);
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.status-row:last-child {
  border-bottom: none;
}

.status-row__label {
  color: var(--color-muted);
}

.status-row__value {
  color: var(--color-accent);
  font-weight: 700;
}

/* ========== Article List ========== */
.list-article {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-article__item + .list-article__item {
  border-top: 1px dashed rgba(255, 255, 255, 0.15);
}

.list-article__item {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) auto;
  gap: var(--space-md);
  align-items: baseline;
  padding: var(--space-md) 0;
}

.list-article__time {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
}

.list-article__title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

.list-article__title:hover,
.list-article__title:focus-visible {
  color: var(--color-accent);
}

/* ========== Content Body ========== */
.content-body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  max-width: 68ch;
}

.content-body p {
  margin-bottom: var(--space-md);
}

.content-body ul,
.content-body ol {
  margin: 0 0 var(--space-md);
  padding-left: 1.4em;
}

.content-body li + li {
  margin-top: var(--space-xs);
}

.content-body h2,
.content-body h3,
.content-body h4 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.content-body blockquote {
  margin: var(--space-lg) 0;
}

.content-body > *:last-child {
  margin-bottom: 0;
}

/* ========== Figures & Visuals ========== */
.figure {
  margin: 0 0 var(--space-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-primary-dark);
}

.figure img {
  width: 100%;
  height: auto;
}

.figure__caption {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.visual-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: var(--space-lg);
  background:
    linear-gradient(135deg, transparent 25%, rgba(255, 107, 53, 0.07) 25%, rgba(255, 107, 53, 0.07) 50%, transparent 50%),
    linear-gradient(45deg, transparent 25%, rgba(247, 200, 115, 0.05) 25%, rgba(247, 200, 115, 0.05) 50%, transparent 50%);
  background-size: 28px 28px, 28px 28px;
  background-color: var(--color-primary-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

.visual-tile--ratio {
  aspect-ratio: 16 / 9;
  min-height: 0;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--color-primary-dark);
  border-top: 3px solid var(--color-accent);
  padding-top: var(--space-3xl);
  margin-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 2fr) minmax(0, 3fr);
  gap: var(--space-2xl);
}

.footer-brand .brand {
  margin-bottom: var(--space-md);
}

.brand--footer .brand__mark {
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

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

.footer-trust {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-md);
  margin-top: var(--space-md);
  max-width: 46ch;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-link-list,
.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  font-family: var(--font-heading);
  font-size: 14px;
  color: rgba(245, 247, 250, 0.85);
  text-decoration: none;
  transition: color 0.2s ease, gap 0.2s ease;
}

.footer-link-list a::before {
  content: '→';
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.footer-link-list a:hover,
.footer-link-list a:focus-visible {
  color: var(--color-accent);
  gap: 10px;
}

.footer-contact-list li {
  display: flex;
  gap: 8px;
  padding: 6px 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(245, 247, 250, 0.75);
  font-family: var(--font-body);
}

.footer-contact-list li::before {
  content: '/';
  font-family: var(--font-mono);
  color: var(--color-accent);
  flex-shrink: 0;
}

.footer-local {
  margin-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: flex-end;
}

.skyline {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 64px;
  opacity: 0.7;
}

.skyline__building,
.skyline__tower {
  display: block;
  flex-shrink: 0;
  background: var(--color-primary-light);
}

.skyline__building--s {
  width: 8px;
  height: 24px;
}

.skyline__building--m {
  width: 10px;
  height: 38px;
}

.skyline__building--l {
  width: 12px;
  height: 50px;
}

.skyline__tower {
  position: relative;
  width: 36px;
  height: 64px;
  background: var(--color-primary-light);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 72% 68%, 72% 100%, 28% 100%, 28% 68%, 0 68%);
}

.skyline__tower::after {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-gold);
  transform: translateX(-50%);
  opacity: 0.9;
}

.footer-bottom {
  margin-top: var(--space-lg);
  padding: var(--space-md) 0 var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm) var(--space-lg);
}

.footer-copy {
  font-size: 13px;
  color: var(--color-muted);
  margin: 0;
}

.footer-icp {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  margin: 0;
}

/* ========== Scroll Progress ========== */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  z-index: 110;
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--color-accent);
  box-shadow: 0 0 6px rgba(255, 107, 53, 0.5);
}

/* ========== Responsive : Tablet ========== */
@media (max-width: 1023px) {
  .editorial-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .editorial-rail {
    position: static;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ========== Responsive : Mobile ========== */
@media (max-width: 767px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding-inline: 16px;
  }

  .header__container {
    gap: var(--space-md);
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl) var(--space-lg) var(--space-4xl);
    background: rgba(2, 12, 27, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    overflow-y: auto;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-sm);
    font-size: 18px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
  }

  .nav-link[aria-current="page"]::after {
    left: 0;
    right: auto;
    bottom: auto;
    top: 50%;
    width: 3px;
    height: 60%;
    transform: translateY(-50%);
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .list-article__item {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-local {
    justify-content: center;
  }

  .skyline {
    transform: scale(0.75);
    transform-origin: bottom right;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========== Reduced Motion ========== */
@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-card:hover,
  .data-card:focus-within {
    transform: none;
    box-shadow: var(--shadow-card);
  }

  .btn--primary:hover,
  .btn--primary:focus-visible,
  .btn--outline:hover,
  .btn--outline:focus-visible {
    transform: none;
  }

  .skip-link {
    transition: none;
  }

  .scroll-progress__bar {
    width: 100% !important;
    opacity: 0;
  }

  .scroll-progress.is-active .scroll-progress__bar {
    opacity: 1;
  }
}