:root {
  --color-bg: #0A1F44;
  --color-bg-deep: #071530;
  --color-surface: rgba(10,31,68,0.7);
  --color-glass: rgba(20,45,92,0.52);
  --color-accent: #39FF14;
  --color-warn: #FF6B00;
  --color-yellow: #FFD500;
  --color-text: #F0F5FF;
  --color-muted: #A8B8D8;
  --color-line: rgba(168,184,216,0.18);
  --gradient-data: linear-gradient(90deg, rgba(57,255,20,0.8), rgba(57,255,20,0.1));
  --font-headline: "Impact", "Helvetica Neue", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Roboto Mono", "Menlo", "Courier New", "PingFang SC", "Microsoft YaHei", monospace;
  --font-index: "Roboto Mono", "SFMono-Regular", monospace;
  --content-max: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --section-space: clamp(72px, 12vw, 144px);
}

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

html {
  background: var(--color-bg);
  scroll-padding-top: 120px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 8%, rgba(57,255,20,0.09), transparent 32%),
    radial-gradient(circle at 14% 90%, rgba(255,107,0,0.07), transparent 26%),
    linear-gradient(rgba(168,184,216,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,184,216,0.035) 1px, transparent 1px);
  background-size: auto, auto, 52px 52px, 52px 52px;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.45em;
  font-family: var(--font-headline);
  font-weight: 400;
  line-height: 1.05;
  color: var(--color-text);
}

p {
  margin: 0 0 1em;
}

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

ul, ol {
  margin: 0;
  padding-left: 1.2em;
}

button {
  font: inherit;
}

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

::selection {
  background: rgba(57,255,20,0.3);
  color: var(--color-text);
}

#main-content {
  position: relative;
  z-index: 1;
  width: 100%;
  flex: 1;
  outline: none;
}

.skip-link {
  position: absolute;
  top: -64px;
  left: 16px;
  z-index: 2000;
  padding: 10px 16px;
  background: var(--color-accent);
  color: #071530;
  font-family: var(--font-index);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7,21,48,0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-line);
}

.progress-track {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: rgba(168,184,216,0.12);
  pointer-events: none;
}

[data-progress-marker] {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, rgba(57,255,20,0.85), rgba(255,107,0,0.4));
  box-shadow: 0 0 8px rgba(57,255,20,0.3);
}

.masthead {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 12px var(--gutter) 8px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(16px, 3vw, 32px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  justify-self: start;
  text-decoration: none;
}

.brand-mark {
  display: flex;
  align-items: center;
}

.brand-svg {
  display: block;
  width: 126px;
  height: 30px;
}

.brand-svg-word {
  font-family: var(--font-headline);
  font-size: 32px;
  fill: var(--color-accent);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-headline);
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--color-text);
  white-space: nowrap;
}

.brand-code {
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.masthead-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-family: var(--font-index);
}

.masthead-lede {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  opacity: 0.72;
  white-space: nowrap;
}

.masthead-index {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-warn);
  border: 1px solid rgba(255,107,0,0.3);
  padding: 3px 8px;
  white-space: nowrap;
}

.masthead-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-shortcut {
  display: none;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  background: rgba(7,21,48,0.5);
  border: 1px solid rgba(168,184,216,0.22);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-text);
  text-decoration: none;
}

body.page-home .card-shortcut {
  display: inline-flex;
}

.card-shortcut:hover {
  border-color: rgba(255,107,0,0.5);
  box-shadow: 0 0 14px rgba(255,107,0,0.16);
  color: var(--color-text);
}

.card-shortcut__dot {
  width: 8px;
  height: 8px;
  display: inline-block;
}

.card-shortcut__dot--red {
  background: var(--color-warn);
  box-shadow: 0 0 6px rgba(255,107,0,0.7);
}

.card-shortcut__dot--yellow {
  background: var(--color-yellow);
  box-shadow: 0 0 6px rgba(255,213,0,0.55);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(57,255,20,0.05);
  border: 1px solid rgba(57,255,20,0.28);
  color: var(--color-text);
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 14px rgba(57,255,20,0.22);
}

.nav-toggle-box {
  position: relative;
  width: 16px;
  height: 12px;
}

.nav-toggle-box span {
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--color-accent);
  transition: top 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-box span:nth-child(1) {
  top: 0;
}

.nav-toggle-box span:nth-child(2) {
  top: 5px;
}

.nav-toggle-box span:nth-child(3) {
  top: 10px;
}

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

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

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

.nav-toggle-label {
  font-size: 12px;
}

.site-nav {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 2px var(--gutter) 12px;
}

.nav-list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(12px, 3vw, 38px);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 0 10px;
  font-family: var(--font-index);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-decoration: none;
  text-transform: uppercase;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(57,255,20,0.3);
}

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

.nav-footline {
  display: none;
}

.site-footer {
  position: relative;
  z-index: 2;
  margin-top: auto;
  background: var(--color-bg-deep);
  border-top: 1px solid rgba(57,255,20,0.16);
}

.footer-grid {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 48px var(--gutter) 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 40px);
}

.footer-brand {
  min-width: 0;
}

.footer-brand-mark {
  display: block;
  font-family: var(--font-headline);
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-accent);
}

.footer-brand-cn {
  display: block;
  margin: 10px 0 8px;
  font-family: var(--font-headline);
  font-size: 16px;
  letter-spacing: 6px;
  color: var(--color-text);
}

.footer-trust {
  max-width: 34ch;
  font-family: var(--font-index);
  font-size: 11px;
  line-height: 1.9;
  color: var(--color-muted);
}

.footer-column {
  min-width: 0;
}

.footer-title {
  margin: 0 0 12px;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-warn);
  text-transform: uppercase;
}

.footer-column ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-column li {
  margin: 0 0 2px;
}

.footer-column a {
  font-family: var(--font-index);
  font-size: 13px;
  line-height: 2;
  color: var(--color-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer-column a:hover {
  color: var(--color-accent);
  border-bottom-color: rgba(57,255,20,0.4);
}

.footer-contact {
  min-width: 0;
}

.footer-contact p {
  margin: 5px 0;
  font-family: var(--font-index);
  font-size: 12px;
  line-height: 1.7;
  color: var(--color-muted);
  word-break: break-word;
}

.footer-meta {
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 16px var(--gutter);
  border-top: 1px solid rgba(168,184,216,0.12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  font-family: var(--font-index);
  font-size: 11px;
  color: var(--color-muted);
}

.container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-space);
}

.section-head {
  max-width: 780px;
  display: grid;
  gap: 12px;
  margin-bottom: 40px;
}

.kicker {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  text-transform: uppercase;
}

.display {
  margin: 0;
  font-family: var(--font-headline);
  font-size: clamp(52px, 9vw, 96px);
  line-height: 0.92;
  color: var(--color-text);
  text-transform: uppercase;
}

.lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 32px);
}

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

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

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

.grid .span-12 {
  grid-column: span 12;
}

.grid-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: clamp(20px, 4vw, 60px);
}

.grid-split--asym {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

.panel {
  padding: clamp(20px, 3vw, 32px);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card {
  padding: 24px;
  background: linear-gradient(145deg, rgba(10,31,68,0.82), rgba(7,21,48,0.72));
  border: 1px solid var(--color-line);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(57,255,20,0.45);
  box-shadow: 0 10px 30px rgba(0,0,0,0.28), 0 0 18px rgba(57,255,20,0.08);
}

.data-card {
  padding: 24px;
  background: rgba(7,21,48,0.45);
  border-left: 2px solid var(--color-accent);
}

.data-card__index {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-warn);
  text-transform: uppercase;
}

.data-card__title {
  margin: 6px 0 10px;
  font-family: var(--font-headline);
  font-size: 22px;
}

.data-card__value {
  margin: 8px 0 12px;
  font-family: var(--font-headline);
  font-size: 44px;
  line-height: 1;
  color: var(--color-accent);
}

.data-bar {
  height: 6px;
  background: rgba(168,184,216,0.12);
  overflow: hidden;
}

.data-bar__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--gradient-data);
  transition: width 0.4s ease;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(7,21,48,0.4);
  border: 1px solid rgba(168,184,216,0.25);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-transform: uppercase;
}

.tag--accent {
  border-color: rgba(57,255,20,0.4);
  color: var(--color-accent);
}

.tag--warn {
  border-color: rgba(255,107,0,0.4);
  color: var(--color-warn);
}

.button {
  display: inline-block;
  padding: 12px 20px;
  background: rgba(57,255,20,0.08);
  border: 1px solid rgba(57,255,20,0.5);
  font-family: var(--font-index);
  font-size: 13px;
  letter-spacing: 0.12em;
  line-height: 1;
  color: var(--color-accent);
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  background: var(--color-accent);
  color: var(--color-bg-deep);
  box-shadow: 0 0 20px rgba(57,255,20,0.3);
}

.button--warn {
  border-color: rgba(255,107,0,0.5);
  color: var(--color-warn);
}

.button--warn:hover {
  background: var(--color-warn);
  color: var(--color-bg-deep);
  box-shadow: 0 0 20px rgba(255,107,0,0.28);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 28px;
  padding: 12px 0;
  list-style: none;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--color-muted);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--color-warn);
}

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

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

.text-block {
  max-width: 72ch;
}

.caption {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-muted);
}

.figure {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(7,21,48,0.9), rgba(10,31,68,0.38));
  border: 1px solid var(--color-line);
}

.figure::after {
  content: "FIG / SLOT";
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  opacity: 0.7;
}

.figure img,
.figure svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--wide {
  aspect-ratio: 16 / 8;
  min-height: 0;
}

.figure--portrait {
  aspect-ratio: 4 / 5;
  min-height: 0;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

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

@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .masthead-lede {
    display: none;
  }
}

@media (max-width: 860px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .masthead-meta {
    display: none;
  }

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

  .site-nav {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    visibility: hidden;
    padding: 0 var(--gutter);
    transition: max-height 0.25s ease, opacity 0.25s ease, padding 0.25s ease, visibility 0.25s ease;
  }

  .site-nav[data-open] {
    max-height: 520px;
    opacity: 1;
    visibility: visible;
    padding: 4px var(--gutter) 16px;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  .nav-link {
    padding: 10px 0;
  }

  .nav-footline {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-family: var(--font-index);
    font-size: 10px;
    color: var(--color-muted);
    text-transform: uppercase;
  }

  .grid-split,
  .grid-split--asym {
    grid-template-columns: 1fr;
  }

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

  body.page-home .card-shortcut {
    display: none;
  }
}

@media (max-width: 560px) {
  .brand {
    gap: 8px;
  }

  .brand-svg {
    width: 104px;
    height: 24px;
  }

  .brand-name {
    font-size: 17px;
    letter-spacing: 2px;
  }

  .brand-code {
    display: none;
  }

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

  .footer-meta {
    justify-content: center;
    text-align: center;
  }
}

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

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

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

  .card:hover {
    transform: none;
  }

  .data-bar__fill {
    transition: none;
  }
}