/* =============================================================
   HTH·竞界 — 共享核心样式 /assets/site.css
   架构：暗色竞技场 + 双色高亮 + 左侧栏目录式导航
   ============================================================= */

/* ---------- 01. Design Tokens & Reset ---------- */
:root {
  color-scheme: dark;
  --c-bg: #0B0F14;
  --c-bg-alt: #131820;
  --c-bg-card: #1A212B;
  --c-primary: #E4002B;
  --c-primary-dark: #B3001B;
  --c-gold: #FFB800;
  --c-gold-bright: #FFD700;
  --c-cyan: #00E5FF;
  --c-text: #F5F7FA;
  --c-text-dim: #9BA6B2;
  --c-line: #232A35;

  --f-headline: Impact, 'DIN Condensed', 'Arial Narrow', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --f-body: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --f-data: 'Roboto Mono', 'SF Mono', 'Source Code Pro', Consolas, 'Courier New', monospace;
  --f-editorial: 'Noto Serif SC', 'Songti SC', Georgia, serif;

  --status-height: 44px;
  --nav-sidebar-width: 220px;
  --content-max: 1280px;
  --gutter: clamp(16px, 3vw, 40px);
  --radius: 4px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --skew: -3deg;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  background: var(--c-bg);
  color: var(--c-text);
  scroll-behavior: smooth;
  scroll-padding-top: var(--status-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 100vh;
  overflow-x: hidden;
  padding-top: var(--status-height);
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 992px) {
  body {
    padding-left: var(--nav-sidebar-width);
  }
}

ul, ol {
  list-style: none;
}

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

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

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

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

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

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

::selection {
  background: rgba(228, 0, 43, 0.8);
  color: #fff;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--c-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--c-primary-dark);
}

/* ---------- 02. Base Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-headline);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-text);
}

h1 { font-size: clamp(48px, 8vw, 80px); transform: skew(-2deg); letter-spacing: 0.02em; }
h2 { font-size: clamp(32px, 5vw, 40px); transform: skew(var(--skew)); letter-spacing: 0.02em; }
h3 { font-size: 24px; transform: skew(var(--skew)); }
h4 { font-size: 18px; transform: skew(var(--skew)); }

p { margin-bottom: 1rem; }

.lead {
  font-size: 18px;
  line-height: 1.7;
  color: var(--c-text-dim);
}

.eyebrow {
  display: inline-block;
  font-family: var(--f-data);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.pull-quote {
  font-family: var(--f-editorial);
  font-size: 20px;
  line-height: 1.65;
  color: var(--c-text);
  border-left: 3px solid var(--c-gold);
  padding-left: 24px;
  margin: 32px 0;
  font-style: italic;
}

.prose {
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
}

.prose h2 {
  margin-top: 48px;
  margin-bottom: 16px;
  font-size: 28px;
}

.prose h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-size: 20px;
}

.prose p {
  margin-bottom: 1.1em;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 03. Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.container--narrow {
  max-width: 900px;
}

.container-fluid {
  width: 100%;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.section--tight {
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(32px, 5vw, 56px);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-6 { grid-column: span 6; }
.col-span-8 { grid-column: span 8; }
.col-span-12 { grid-column: span 12; }

@media (max-width: 767px) {
  .col-span-2, .col-span-3, .col-span-4,
  .col-span-6, .col-span-8, .col-span-12 {
    grid-column: span 12;
  }
}

/* ---------- 04. Skip Link / Scroll Progress ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 2000;
  padding: 12px 28px;
  background: var(--c-primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius);
  transform: translateY(-300%);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--c-cyan);
  outline-offset: 2px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-bg);
  z-index: 1600;
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-primary), var(--c-gold), var(--c-cyan));
}

/* ---------- 05. Header: Status Bar ---------- */
.site-header {
  position: relative;
  z-index: 500;
}

.status-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--status-height);
  background: linear-gradient(180deg, rgba(228,0,43,0.06), transparent 60%), var(--c-bg);
  border-bottom: 1px solid var(--c-line);
  z-index: 1000;
}

.status-bar__inner {
  width: 100%;
  height: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  padding: 0 var(--gutter);
}

.status-bar__brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--c-text);
  white-space: nowrap;
  flex-shrink: 0;
}

.status-bar__brand:hover {
  color: var(--c-text);
}

.status-bar__logo {
  font-family: var(--f-headline);
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  background: var(--c-primary);
  padding: 1px 8px;
  transform: skew(-6deg);
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.status-bar__name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-text);
}

.status-bar__region {
  font-family: var(--f-data);
  font-size: 11px;
  color: var(--c-text-dim);
  letter-spacing: 0.1em;
}

.status-bar__ticker {
  flex: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-bar__ticker-live {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 8px rgba(228,0,43,0.7);
  animation: hth-pulse 1.8s ease-in-out infinite;
}

.status-bar__ticker-viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  height: 100%;
  display: flex;
  align-items: center;
}

.status-bar__ticker-track {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  animation: hth-ticker 32s linear infinite;
  will-change: transform;
}

.status-bar__ticker-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-text-dim);
  padding-right: 40px;
}

.status-bar__ticker-group em {
  font-family: var(--f-data);
  font-style: normal;
  font-weight: 700;
  color: var(--c-gold);
}

.status-bar__location {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--c-text-dim);
  padding: 4px 12px;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: var(--c-bg-alt);
}

.status-bar__location-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  flex: 0 0 auto;
}

@keyframes hth-ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes hth-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.75); }
}

/* ---------- 06. Header: Main Nav ---------- */
.main-nav {
  display: flex;
  flex-direction: column;
  background: var(--c-bg-alt);
  z-index: 950;
}

.main-nav__hint {
  display: none;
}

.main-nav__inner {
  display: none;
}

.main-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-text);
  font-size: 16px;
  font-weight: 600;
}

.main-nav__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--c-gold);
  color: #000;
  font-family: var(--f-headline);
  font-weight: 700;
  font-size: 17px;
  transform: skew(-6deg);
  border-radius: 2px;
}

.main-nav__brand-text {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

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

.nav-toggle__line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-text);
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

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

.nav-list {
  display: flex;
}

.nav-list__item {
  position: relative;
}

.nav-list__link {
  position: relative;
  font-family: var(--f-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-list__link:hover {
  color: var(--c-gold);
}

.nav-list__index {
  font-family: var(--f-data);
  font-size: 11px;
  font-weight: 400;
  color: var(--c-text-dim);
  border: 1px solid var(--c-line);
  border-radius: 2px;
  padding: 1px 4px;
  letter-spacing: 0;
  transition: color 0.2s, border-color 0.2s;
}

/* ---------- 07. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 120px);
  background:
    linear-gradient(180deg, rgba(228,0,43,0.05), transparent 120px),
    var(--c-bg);
  border-top: 3px solid var(--c-gold);
  padding-top: clamp(40px, 6vw, 64px);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 48px);
}

.footer__logo {
  font-family: var(--f-headline);
  font-size: 30px;
  font-weight: 700;
  color: var(--c-text);
  transform: skew(-3deg);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.footer__logo-accent {
  color: var(--c-primary);
}

.footer__logo-en {
  display: block;
  font-family: var(--f-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-text-dim);
  margin-top: 4px;
  transform: none;
}

.footer__tagline {
  margin-top: 16px;
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.7;
  max-width: 42ch;
}

.footer__trust {
  margin-top: 16px;
  font-family: var(--f-data);
  font-size: 12px;
  color: var(--c-gold);
  letter-spacing: 0.04em;
  border-left: 2px solid var(--c-gold);
  padding-left: 12px;
  line-height: 1.5;
}

.footer__heading {
  font-family: var(--f-headline);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 20px;
  padding-bottom: 8px;
  position: relative;
  transform: none;
}

.footer__heading::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--c-primary);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__list a {
  display: inline-block;
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.4;
  transition: color 0.2s, padding-left 0.2s;
}

.footer__list a:hover {
  color: var(--c-gold);
  padding-left: 6px;
}

.footer__info {
  display: block;
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.5;
}

.footer__divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-line) 40%, var(--c-bg));
  margin: 40px 0 24px;
}

.footer__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 28px;
  color: var(--c-text-dim);
  font-size: 13px;
}

.footer__copyright,
.footer__icp {
  margin: 0;
}

.footer__icp {
  font-family: var(--f-data);
  letter-spacing: 0.04em;
}

/* ---------- 08. Common Components ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  font-family: var(--f-headline);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transform: skew(-3deg);
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease), border-color 0.2s var(--ease);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.btn:hover {
  transform: skew(-3deg) translateY(-2px);
}

.btn:active {
  transform: skew(-3deg) translateY(0);
}

.btn--primary {
  background: var(--c-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-primary-dark);
  color: #fff;
}

.btn--gold {
  background: var(--c-gold);
  color: #000;
}

.btn--gold:hover {
  background: var(--c-gold-bright);
  color: #000;
}

.btn--ghost {
  border-color: var(--c-line);
  color: var(--c-text);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-family: var(--f-data);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  color: var(--c-text-dim);
  background: var(--c-bg-alt);
}

.tag--red {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.tag--gold {
  background: rgba(255,184,0,0.12);
  border-color: rgba(255,184,0,0.4);
  color: var(--c-gold);
}

.tag--cyan {
  background: rgba(0,229,255,0.08);
  border-color: rgba(0,229,255,0.4);
  color: var(--c-cyan);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  font-size: 13px;
  color: var(--c-text-dim);
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: '/';
  margin-right: 8px;
  color: var(--c-line);
  font-family: var(--f-data);
}

.breadcrumb__link {
  color: var(--c-text-dim);
  transition: color 0.2s;
}

.breadcrumb__link:hover {
  color: var(--c-gold);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--c-text);
}

.card {
  position: relative;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  padding: 24px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.card:hover {
  border-color: rgba(255,184,0,0.4);
  transform: translateY(-2px);
}

.card--stat {
  overflow: hidden;
}

.card--stat::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, transparent 48%, var(--c-gold) 50%, transparent 52%);
  opacity: 0.18;
}

.panel {
  position: relative;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  padding: clamp(24px, 4vw, 48px);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.panel--accent {
  border-top: 4px solid var(--c-primary);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.section-heading__title {
  margin: 0;
  font-family: var(--f-headline);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transform: skew(-3deg);
  color: var(--c-text);
}

.section-heading__kicker {
  display: block;
  font-family: var(--f-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.section-heading__desc {
  max-width: 480px;
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

.score-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  font-family: var(--f-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-cyan);
  background: rgba(0,229,255,0.06);
  border: 1px solid rgba(0,229,255,0.25);
  border-radius: 2px;
}

.divider--gold {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-line) 45%, transparent);
  margin: 40px 0;
}

/* ---------- 09. Image Frames ---------- */
.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-bg-card);
  border: 1px solid var(--c-line);
  min-height: 120px;
}

.img-frame--16x9 {
  aspect-ratio: 16 / 9;
}

.img-frame--4x3 {
  aspect-ratio: 4 / 3;
}

.img-frame--hero {
  aspect-ratio: 21 / 9;
}

.img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(228,0,43,0.08), rgba(0,229,255,0.05));
  pointer-events: none;
}

.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

/* ---------- 10. Return Top ---------- */
.return-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 800;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  line-height: 1;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  color: var(--c-gold);
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s, border-color 0.2s;
}

.return-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.return-top:hover {
  border-color: var(--c-gold);
}

/* ---------- 11. Reveal Protocol ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

[data-reveal][data-visible] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 12. Scrollspy Protocol ---------- */
[data-spy-link] {
  transition: color 0.2s, border-color 0.2s;
}

[data-spy-link][data-active] {
  color: var(--c-gold);
  border-left-color: var(--c-gold);
}

/* ---------- 13. Responsive: Mobile Nav ---------- */
@media (max-width: 991px) {
  .main-nav {
    border-bottom: 1px solid var(--c-line);
  }

  .main-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    padding: 8px var(--gutter);
    border-bottom: 1px solid var(--c-line);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--c-line) transparent;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.3s var(--ease), opacity 0.25s var(--ease), visibility 0.25s;
  }

  .nav-list::-webkit-scrollbar {
    height: 4px;
  }

  .nav-list::-webkit-scrollbar-thumb {
    background: var(--c-line);
    border-radius: 2px;
  }

  [data-nav][data-open] .nav-list {
    max-height: 58px;
    opacity: 1;
    visibility: visible;
  }

  .nav-list__item {
    flex: 0 0 auto;
  }

  .nav-list__link {
    padding: 16px 14px 14px;
    color: var(--c-text-dim);
    font-size: 14px;
    border-bottom: 2px solid transparent;
  }

  .nav-list__link:hover {
    color: var(--c-text);
    border-bottom-color: var(--c-gold);
  }

  .nav-list__link[aria-current="page"] {
    color: var(--c-text);
    border-bottom-color: var(--c-primary);
  }

  .nav-list__index {
    font-size: 10px;
  }
}

/* ---------- 14. Responsive: Desktop Sidebar ---------- */
@media (min-width: 992px) {
  .main-nav {
    position: fixed;
    top: var(--status-height);
    bottom: 0;
    left: 0;
    width: var(--nav-sidebar-width);
    z-index: 960;
    background:
      linear-gradient(180deg, rgba(228,0,43,0.05), transparent 140px),
      var(--c-bg-alt);
    border-right: 1px solid var(--c-line);
  }

  .main-nav__hint {
    display: block;
    padding: 28px 24px 10px;
    font-family: var(--f-data);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--c-text-dim);
    border-bottom: 1px solid var(--c-line);
    margin-bottom: 12px;
  }

  .nav-list {
    flex-direction: column;
    flex: 1;
    padding: 0 0 32px;
  }

  .nav-list__link {
    gap: 14px;
    padding: 15px 22px;
    font-family: var(--f-headline);
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--c-text-dim);
    border-left: 3px solid transparent;
  }

  .nav-list__link:hover {
    color: var(--c-gold);
    background: linear-gradient(90deg, rgba(255,184,0,0.07), transparent);
    border-left-color: var(--c-gold);
  }

  .nav-list__link[aria-current="page"] {
    color: var(--c-text);
    background: linear-gradient(90deg, rgba(228,0,43,0.18), transparent);
    border-left-color: var(--c-primary);
  }

  .nav-list__link[aria-current="page"]::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    width: 6px;
    height: 6px;
    background: var(--c-primary);
    transform: translateY(-50%) rotate(45deg);
  }

  .nav-list__link[aria-current="page"] .nav-list__index {
    color: var(--c-primary);
    border-color: rgba(228,0,43,0.45);
  }

  .nav-list__index {
    font-size: 11px;
  }
}

/* ---------- 15. Responsive: Footer & Status ---------- */
@media (max-width: 991px) {
  .footer__top {
    grid-template-columns: 1fr 1fr;
  }

  .status-bar__inner {
    gap: 12px;
  }

  .status-bar__ticker-group {
    font-size: 12px;
  }
}

@media (max-width: 640px) {
  .footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .status-bar__name,
  .status-bar__region {
    display: none;
  }

  .status-bar__ticker {
    gap: 6px;
  }

  .status-bar__ticker-group em {
    font-weight: 600;
  }

  .status-bar__location {
    font-size: 12px;
    padding: 3px 8px;
  }

  .status-bar__logo {
    font-size: 16px;
    padding: 1px 6px;
  }
}

/* ---------- 16. Accessibility & 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;
  }

  .status-bar__ticker-track {
    animation: none;
  }

  .status-bar__ticker-live {
    animation: none;
  }

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

  .scroll-progress__bar {
    transition: none;
  }
}