:root {
  --ng-ink: #0B1F1A;
  --ng-deeper: #07120E;
  --ng-lime: #C6FF00;
  --ng-orange: #FF6B1A;
  --ng-blue: #38BDF8;
  --ng-snow: #F2F5F0;
  --ng-grass: #1A5C3A;
  --ng-steel: #94A3B8;
  --ng-gold: #FFD500;
  --ng-font: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ng-display: "Archivo Black", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ng-mono: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --ng-container: 1200px;
  --ng-radius: 24px;
  --ng-rail: 264px;
  --ng-header-h: 64px;
  --progress: 0;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

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

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

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--ng-ink);
  color: var(--ng-snow);
  font-family: var(--ng-font);
  font-size: 1rem;
  line-height: 1.6;
}

::selection {
  background: var(--ng-lime);
  color: var(--ng-ink);
}

:focus-visible {
  outline: 3px solid var(--ng-lime);
  outline-offset: 3px;
  border-radius: 6px;
}

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

.ng-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--ng-lime);
  color: var(--ng-ink);
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transform: translateY(-300%);
  transition: transform 0.2s ease;
}

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

.ng-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  z-index: 9100;
  pointer-events: none;
}

.ng-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--ng-lime) 0%, var(--ng-orange) 78%, var(--ng-gold) 100%);
  transform-origin: 0 50%;
  transform: scaleX(var(--progress, 0));
}

.ng-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: var(--ng-ink);
  border-bottom: 1px solid rgba(198, 255, 0, 0.24);
}

.ng-header__bar {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: var(--ng-header-h);
  padding: 0 16px;
}

.ng-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ng-snow);
}

.ng-brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 46px;
  height: 36px;
  background: var(--ng-lime);
  border-radius: 10px;
  box-shadow: inset 0 0 0 2px rgba(11, 31, 26, 0.28);
  color: var(--ng-ink);
  font-family: var(--ng-display);
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  transform: skewX(-10deg);
}

.ng-brand__name {
  font-family: var(--ng-display);
  font-size: 1.1rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--ng-snow);
}

.ng-brand__badge {
  display: none;
}

.ng-nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid rgba(198, 255, 0, 0.38);
  border-radius: 999px;
  color: var(--ng-snow);
  font-family: var(--ng-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

.ng-nav-toggle__box {
  position: relative;
  width: 16px;
  height: 14px;
}

.ng-nav-toggle__line {
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--ng-lime);
  transition: transform 0.25s ease, opacity 0.2s ease, width 0.2s ease;
}

.ng-nav-toggle__line:nth-child(1) {
  top: 0;
}

.ng-nav-toggle__line:nth-child(2) {
  top: 6px;
  width: 11px;
}

.ng-nav-toggle__line:nth-child(3) {
  top: 12px;
}

.ng-header[data-open] .ng-nav-toggle__line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.ng-header[data-open] .ng-nav-toggle__line:nth-child(2) {
  width: 16px;
  opacity: 0;
}

.ng-header[data-open] .ng-nav-toggle__line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.ng-nav-toggle__text {
  display: none;
}

@media (min-width: 480px) {
  .ng-nav-toggle__text {
    display: inline;
  }
}

.ng-header__nav {
  position: fixed;
  top: var(--ng-header-h);
  left: 0;
  bottom: 0;
  z-index: 2;
  width: min(320px, 84vw);
  padding: 20px 16px 32px;
  overflow-y: auto;
  background: var(--ng-ink);
  border-right: 1px solid var(--ng-grass);
  transform: translateX(-103%);
  visibility: hidden;
  transition: transform 0.32s cubic-bezier(0.22, 0.68, 0.35, 1), visibility 0s linear 0.32s;
}

.ng-header[data-open] .ng-header__nav {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.32s cubic-bezier(0.22, 0.68, 0.35, 1);
}

.ng-header::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  background: rgba(3, 8, 6, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0s linear 0.28s;
}

.ng-header[data-open]::after {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.28s ease;
}

.ng-nav {
  display: grid;
  gap: 4px;
}

.ng-nav__item {
  display: block;
}

.ng-nav__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 14px;
  color: var(--ng-snow);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
}

.ng-nav__link::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  border: 2px solid var(--ng-steel);
  border-radius: 2px;
  transform: skewX(-18deg);
  transition: border-color 0.2s, background-color 0.2s;
}

.ng-nav__link:hover {
  background: rgba(198, 255, 0, 0.08);
  color: var(--ng-lime);
}

.ng-nav__link:hover::before {
  border-color: var(--ng-lime);
}

.ng-nav__link[aria-current="page"] {
  background: var(--ng-lime);
  color: var(--ng-ink);
}

.ng-nav__link[aria-current="page"]::before {
  border-color: var(--ng-ink);
  background: var(--ng-ink);
}

.ng-header__meta {
  display: none;
}

.ng-header__slogan {
  font-family: var(--ng-mono);
  font-size: 0.68rem;
  line-height: 1.6;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ng-steel);
}

.ng-header__code {
  margin-top: 8px;
  font-family: var(--ng-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--ng-lime);
}

@media (min-width: 1024px) {
  body {
    padding-left: var(--ng-rail);
  }

  #main-content {
    scroll-margin-top: 20px;
  }

  .ng-header {
    top: 0;
    left: 0;
    right: auto;
    bottom: 0;
    display: flex;
    flex-direction: column;
    width: var(--ng-rail);
    border-right: 1px solid rgba(198, 255, 0, 0.22);
    border-bottom: 0;
    background:
      linear-gradient(180deg, rgba(198, 255, 0, 0.05) 0%, transparent 28%),
      linear-gradient(180deg, var(--ng-ink) 0%, #08140F 100%);
  }

  .ng-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--ng-lime) 0%, var(--ng-lime) 56%, var(--ng-orange) 56%, var(--ng-orange) 100%);
  }

  .ng-header::after {
    display: none;
  }

  .ng-header__bar {
    height: auto;
    padding: 32px 24px 20px;
  }

  .ng-brand__mark {
    width: 52px;
    height: 40px;
    font-size: 1.2rem;
  }

  .ng-brand__name {
    font-size: 1.25rem;
  }

  .ng-brand__badge {
    display: inline-block;
    margin-top: 2px;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--ng-orange);
    color: var(--ng-ink);
    font-family: var(--ng-mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .ng-nav-toggle {
    display: none;
  }

  .ng-header__nav {
    position: static;
    flex: 1;
    width: auto;
    padding: 8px 18px;
    overflow: visible;
    background: transparent;
    border-right: 0;
    transform: none;
    visibility: visible;
  }

  .ng-nav {
    gap: 2px;
  }

  .ng-nav__link {
    padding: 11px 14px;
  }

  .ng-header__meta {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 22px 24px;
    border-top: 1px dashed rgba(198, 255, 0, 0.2);
  }

  .ng-header__meta::before {
    content: "";
    flex: none;
    width: 4px;
    height: 34px;
    margin-top: 2px;
    border-radius: 4px;
    background: var(--ng-orange);
  }
}

.ng-footer {
  position: relative;
  margin-top: 72px;
  background:
    linear-gradient(180deg, rgba(198, 255, 0, 0.04), transparent 160px),
    var(--ng-deeper);
  border-top: 1px solid var(--ng-grass);
}

.ng-footer::before {
  content: "FINISH LINE · 终点校验";
  position: absolute;
  top: -14px;
  right: 24px;
  z-index: 1;
  padding: 6px 14px;
  border: 1px solid rgba(198, 255, 0, 0.45);
  border-radius: 999px;
  background: var(--ng-ink);
  color: var(--ng-lime);
  font-family: var(--ng-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.ng-footer__layout {
  display: grid;
  gap: 36px;
  max-width: var(--ng-container);
  margin-inline: auto;
  padding: clamp(44px, 7vw, 72px) clamp(20px, 4vw, 48px) 36px;
  grid-template-columns: 1fr;
}

.ng-footer__brand,
.ng-footer__info {
  min-width: 0;
}

.ng-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ng-display);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--ng-snow);
}

.ng-footer__logo::before {
  content: "NG";
  display: grid;
  place-items: center;
  width: 56px;
  height: 42px;
  border-radius: 12px;
  background: var(--ng-lime);
  box-shadow: inset 0 0 0 2px rgba(11, 31, 26, 0.3);
  color: var(--ng-ink);
  font-size: 1.25rem;
  font-weight: 900;
  transform: skewX(-10deg);
}

.ng-footer__trust {
  max-width: 42ch;
  margin-top: 16px;
  color: var(--ng-steel);
  font-size: 0.9rem;
  line-height: 1.75;
}

.ng-footer__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--ng-steel);
  font-family: var(--ng-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ng-footer__heading::after {
  content: "";
  flex: 1;
  max-width: 80px;
  height: 1px;
  background: var(--ng-grass);
}

.ng-footer__linklist {
  display: grid;
  gap: 10px;
}

.ng-footer__linklist a {
  color: var(--ng-snow);
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.ng-footer__linklist a:hover {
  padding-left: 6px;
  color: var(--ng-lime);
}

.ng-footer__contact {
  display: grid;
  gap: 2px;
  margin-bottom: 14px;
  color: var(--ng-snow);
  font-size: 0.9rem;
  line-height: 1.6;
}

.ng-footer__contact span {
  font-family: var(--ng-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ng-steel);
}

.ng-footer__bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  max-width: var(--ng-container);
  margin-inline: auto;
  padding: 18px clamp(20px, 4vw, 48px);
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  color: var(--ng-steel);
  font-family: var(--ng-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}

@media (min-width: 640px) and (max-width: 1023.98px) {
  .ng-footer__layout {
    grid-template-columns: 1fr 1fr;
  }

  .ng-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .ng-footer__layout {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }
}

.ng-container {
  max-width: var(--ng-container);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

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

.ng-section--alt {
  background: var(--ng-deeper);
}

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

.ng-grid--2,
.ng-grid--3,
.ng-grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .ng-grid--2,
  .ng-grid--3,
  .ng-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .ng-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ng-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ng-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.ng-panel {
  padding: 24px;
  border: 1px solid rgba(26, 92, 58, 0.6);
  border-radius: var(--ng-radius);
  background: linear-gradient(145deg, rgba(26, 92, 58, 0.24), rgba(11, 31, 26, 0.35));
}

.ng-panel--lime {
  border-left: 4px solid var(--ng-lime);
}

.ng-panel--orange {
  border-left: 4px solid var(--ng-orange);
}

.ng-panel--blue {
  border-left: 4px solid var(--ng-blue);
}

.ng-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  border: 2px solid var(--ng-lime);
  border-radius: 999px;
  background: var(--ng-lime);
  color: var(--ng-ink);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.ng-btn:hover {
  background: var(--ng-gold);
  border-color: var(--ng-gold);
}

.ng-btn--ghost {
  background: transparent;
  border-color: rgba(198, 255, 0, 0.5);
  color: var(--ng-lime);
}

.ng-btn--ghost:hover {
  background: rgba(198, 255, 0, 0.08);
  border-color: var(--ng-lime);
  color: var(--ng-snow);
}

.ng-btn--orange {
  background: var(--ng-orange);
  border-color: var(--ng-orange);
  color: var(--ng-ink);
}

.ng-btn--orange:hover {
  background: transparent;
  color: var(--ng-orange);
}

.ng-btn--small {
  min-height: 36px;
  padding: 7px 16px;
  font-size: 0.85rem;
}

.ng-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--ng-grass);
  border-radius: 999px;
  background: rgba(26, 92, 58, 0.22);
  color: var(--ng-snow);
  font-family: var(--ng-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.ng-tag--orange {
  border-color: rgba(255, 107, 26, 0.55);
  background: rgba(255, 107, 26, 0.14);
  color: var(--ng-orange);
}

.ng-tag--blue {
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(56, 189, 248, 0.12);
  color: var(--ng-blue);
}

.ng-tag--gold {
  border-color: rgba(255, 213, 0, 0.55);
  background: rgba(255, 213, 0, 0.12);
  color: var(--ng-gold);
}

.ng-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ng-lime);
  font-family: var(--ng-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ng-kicker::before {
  content: "";
  flex: none;
  width: 26px;
  height: 4px;
  border-radius: 4px;
  background: var(--ng-orange);
  transform: skewX(-24deg);
}

.ng-display {
  font-family: var(--ng-display);
  font-size: clamp(2.1rem, 5.4vw, 4.2rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--ng-snow);
  text-wrap: balance;
}

.ng-display em {
  font-style: normal;
  color: var(--ng-lime);
}

.ng-lead {
  max-width: 62ch;
  color: var(--ng-snow);
  font-size: 1.05rem;
  line-height: 1.75;
}

.ng-note {
  color: var(--ng-steel);
  font-family: var(--ng-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
}

.ng-media {
  position: relative;
  min-height: 180px;
  overflow: hidden;
  border-radius: var(--ng-radius);
  background:
    radial-gradient(circle at 20% 20%, rgba(198, 255, 0, 0.15), transparent 42%),
    linear-gradient(135deg, var(--ng-grass), var(--ng-ink));
}

.ng-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(-45deg, rgba(198, 255, 0, 0.06) 0 2px, transparent 2px 14px);
  pointer-events: none;
}

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

.ng-media--hero {
  aspect-ratio: 16 / 9;
}

.ng-media--portrait {
  aspect-ratio: 4 / 5;
}

.ng-media--landscape {
  aspect-ratio: 3 / 2;
}

.ng-media__cap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed rgba(148, 163, 184, 0.3);
  color: var(--ng-steel);
  font-family: var(--ng-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ng-stat {
  display: grid;
  align-content: start;
  gap: 6px;
}

.ng-stat__num {
  font-family: var(--ng-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--ng-lime);
}

.ng-stat__label {
  color: var(--ng-steel);
  font-family: var(--ng-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ng-crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--ng-mono);
  font-size: 0.78rem;
}

.ng-crumbs li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ng-crumbs li + li::before {
  content: "/";
  color: var(--ng-steel);
}

.ng-crumbs a {
  color: var(--ng-blue);
}

.ng-crumbs a:hover {
  color: var(--ng-lime);
}

.ng-crumbs [aria-current="page"] {
  color: var(--ng-snow);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.55s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

@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;
  }

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