:root {
  --color-bg: #0A0E27;
  --color-panel: #121A3A;
  --color-panel-raised: #18224B;
  --color-line: #2A3560;
  --color-text: #E8EAF6;
  --color-muted: #A0A8C0;
  --color-neon: #00FF88;
  --color-orange: #FF6B35;
  --color-gold: #F5C518;
  --color-danger: #FF4136;
  --color-success: #2ECC40;
  --font-display: "Rajdhani","Noto Sans SC",sans-serif;
  --font-body: "Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono: "Roboto Mono","Courier New",monospace;
  --font-serif: "Playfair Display",serif;
  --container-max: 1280px;
  --header-h: 72px;
  --radius: 2px;
}

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

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-neon);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: 1.25rem;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 32px);
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: 10px;
  z-index: 1200;
  background: var(--color-neon);
  color: #0A0E27;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform 0.15s ease;
}

.skip-link:focus {
  transform: translateY(0);
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(10, 14, 39, 0.55);
  border-bottom: 1px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header[data-header-scrolled] {
  background-color: rgba(10, 14, 39, 0.94);
  border-bottom-color: var(--color-line);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
}

.blueprint-grid {
  background-image:
    linear-gradient(rgba(42, 53, 96, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 53, 96, 0.22) 1px, transparent 1px);
  background-size: 24px 24px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  position: relative;
}

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

.brand:hover {
  text-decoration: none;
}

.brand__logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-neon);
  transform: rotate(45deg);
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.15);
}

.brand__mark {
  transform: rotate(-45deg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-neon);
  line-height: 1;
}

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

.brand__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.04em;
}

.brand__sub {
  font-size: 0.66rem;
  color: var(--color-muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  margin: 0 24px;
}

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

.nav-link {
  position: relative;
  display: block;
  padding: 10px 14px;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--color-neon);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.nav-link:hover {
  color: var(--color-neon);
  background: rgba(0, 255, 136, 0.06);
  text-decoration: none;
}

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

.nav-link[aria-current="page"] {
  color: var(--color-neon);
  background: rgba(0, 255, 136, 0.08);
  box-shadow: inset 0 0 0 1px rgba(0, 255, 136, 0.3);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-neon);
  color: #0A0E27;
  box-shadow: 0 0 0 0 rgba(0, 255, 136, 0);
}

.btn--primary:hover {
  background: #43ffa5;
  box-shadow: 0 4px 0 rgba(0, 255, 136, 0.25);
}

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

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

.btn--accent {
  background: var(--color-orange);
  color: #0A0E27;
}

.btn--accent:hover {
  background: #ff8c5a;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.nav-toggle__bars {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease, opacity 0.2s ease;
}

.nav-toggle__bars::before {
  top: -7px;
}

.nav-toggle__bars::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  top: 0;
  transform: rotate(90deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  top: 0;
  transform: rotate(90deg);
  opacity: 0;
}

.site-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: transparent;
  pointer-events: none;
}

.site-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-neon), var(--color-orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

.content-shell {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 40px clamp(16px, 3vw, 32px) 80px;
}

#main-content {
  outline: none;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 24px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.875rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-muted);
  margin-right: 6px;
}

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

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

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

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

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

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

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.28);
  position: relative;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.card__meta {
  color: var(--color-muted);
  font-size: 0.875rem;
}

.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 10px 12px 0 rgba(0, 0, 0, 0.3);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-panel);
  color: var(--color-muted);
  line-height: 1.2;
}

.badge--live {
  background: var(--color-neon);
  color: #0A0E27;
  border-color: var(--color-neon);
}

.badge--hot {
  background: var(--color-orange);
  color: #0A0E27;
  border-color: var(--color-orange);
}

.badge--gold {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  margin-right: 6px;
  vertical-align: middle;
}

.status-dot--live {
  background: var(--color-neon);
  box-shadow: 0 0 8px var(--color-neon);
}

.status-dot--danger {
  background: var(--color-danger);
}

.data-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--color-panel);
  border-left: 3px solid var(--color-neon);
  padding: 12px 16px;
}

.data-block__label {
  font-size: 0.75rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.data-block__value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--color-text);
  line-height: 1.2;
}

.data-block__value--accent {
  color: var(--color-neon);
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.section-heading__index {
  font-family: var(--font-mono);
  color: var(--color-neon);
  font-size: 0.875rem;
}

.section-heading__title {
  font-family: var(--font-display);
  font-size: 1.625rem;
  margin: 0;
}

.section-heading__meta {
  margin-left: auto;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--color-line);
}

.timeline__item {
  position: relative;
  padding: 0 0 24px 20px;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--color-bg);
  border: 3px solid var(--color-neon);
  border-radius: 50%;
}

.timeline__time {
  font-family: var(--font-mono);
  color: var(--color-neon);
  font-size: 0.875rem;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.filter-tab {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.filter-tab:hover {
  color: var(--color-neon);
  border-color: var(--color-neon);
}

.filter-tab[aria-pressed="true"] {
  background: var(--color-neon);
  color: #0A0E27;
  border-color: var(--color-neon);
}

.media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background-color: var(--color-panel);
  background-image:
    linear-gradient(rgba(42, 53, 96, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 53, 96, 0.4) 1px, transparent 1px);
  background-size: 16px 16px;
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  overflow: hidden;
}

.media-frame::before {
  content: attr(data-placeholder);
  pointer-events: none;
}

.media-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.editor-note {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--color-gold);
  border-left: 3px solid var(--color-gold);
  padding: 8px 16px;
  background: rgba(245, 197, 24, 0.06);
}

.site-footer {
  position: relative;
  margin-top: 80px;
  padding: 56px 0 28px;
  background-color: #070B1D;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon) 0%, var(--color-orange) 55%, var(--color-gold) 100%);
  opacity: 0.8;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-tagline {
  max-width: 320px;
  color: var(--color-muted);
  line-height: 1.5;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-nav::before {
  content: "快捷导航";
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-neon);
  letter-spacing: 0.1em;
  font-size: 0.875rem;
}

.footer-link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link-list a {
  color: var(--color-muted);
  font-size: 0.95rem;
  padding: 2px 0;
}

.footer-link-list a:hover {
  color: var(--color-neon);
  text-decoration: none;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact::before {
  content: "联系方式";
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-neon);
  letter-spacing: 0.1em;
  font-size: 0.875rem;
}

.footer-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.footer-contact p {
  color: var(--color-muted);
  font-size: 0.875rem;
  line-height: 1.4;
}

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-line);
  margin-top: 32px;
  padding-top: 16px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.8375rem;
}

.footer-copy {
  margin: 0;
}

.footer-icp {
  margin: 0;
  font-family: var(--font-mono);
}

@media (max-width: 1023px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 880px) {
  .site-header__inner {
    flex-wrap: nowrap;
  }

  .header-actions .btn {
    display: none;
  }

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

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(18, 26, 58, 0.98);
    border-bottom: 1px solid var(--color-line);
    padding: 16px 20px 24px;
    margin: 0;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    width: 100%;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .nav-link[aria-current="page"] {
    border-left-color: var(--color-neon);
    background: rgba(0, 255, 136, 0.08);
    box-shadow: none;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 767px) {
  .grid-cols-2,
  .grid-cols-3,
  .data-grid {
    grid-template-columns: 1fr;
  }

  .brand__logo {
    width: 34px;
    height: 34px;
  }

  .brand__name {
    font-size: 1.15rem;
  }

  .brand__sub {
    letter-spacing: 0.2em;
    font-size: 0.6rem;
  }

  .site-header__inner {
    min-height: 64px;
  }
}

@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;
    transition-delay: 0s !important;
  }

  .hover-lift:hover {
    transform: none;
  }
}

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