:root {
  --c-neon: #C8FF00;
  --c-neon-soft: rgba(200, 255, 0, .1);
  --c-neon-line: rgba(200, 255, 0, .35);
  --c-purple: #8B00FF;
  --c-purple-soft: rgba(139, 0, 255, .12);
  --c-purple-line: rgba(139, 0, 255, .45);
  --c-black: #0A0A0E;
  --c-ink: #14171C;
  --c-silver: #A0B0C0;
  --c-rock: #2E3238;
  --c-rock-light: rgba(46, 50, 56, .45);
  --c-moss: #3A7D5C;
  --c-clay: #C4674A;
  --c-cream: #F5F0E8;
  --c-white: #FFFFFF;
  --font-heading: "Archivo Black", "Noto Sans SC Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
  --header-h: 72px;
  --container-w: 1280px;
  --gutter: 24px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --ease-out: cubic-bezier(.22, .61, .36, 1);
  --ease-snap: cubic-bezier(.4, 0, .2, 1);
}
@media (max-width: 768px) {
  :root {
    --header-h: 60px;
    --gutter: 16px;
  }
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  background: var(--c-black);
  color: var(--c-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}
ul,
ol {
  list-style: none;
}
a {
  color: var(--c-neon);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}
:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
}
::selection {
  background: var(--c-neon);
  color: var(--c-black);
}
.container {
  width: 100%;
  max-width: calc(var(--container-w) + var(--gutter) * 2);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 2000;
  display: inline-block;
  padding: 10px 18px;
  background: var(--c-neon);
  color: var(--c-black);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transform: translateY(-160%);
  transition: transform .25s var(--ease-snap);
}
.skip-link:focus-visible {
  transform: translateY(0);
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1100;
  pointer-events: none;
  background: transparent;
}
.scroll-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-neon) 0%, var(--c-purple) 100%);
  transition: width .08s linear;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease-out), border-color .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.site-header[data-scrolled] {
  background: rgba(10, 10, 14, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--c-rock-light);
  box-shadow: 0 4px 32px rgba(0, 0, 0, .5);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 100%;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.site-brand__mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1;
  padding: 7px 9px 6px;
  background: var(--c-neon);
  color: var(--c-black);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%);
}
.site-brand__divider {
  width: 1px;
  height: 22px;
  background: var(--c-rock);
}
.site-brand__text {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--c-white);
  white-space: nowrap;
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-nav__item {
  position: relative;
}
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 12px;
  color: var(--c-silver);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .5px;
  text-decoration: none;
  transition: color .2s ease;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  background: var(--c-neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease-snap);
}
.site-nav__link:hover {
  color: var(--c-white);
}
.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}
.site-nav__link[aria-current="page"] {
  color: var(--c-neon);
}
.site-header__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 10px 18px;
  background: var(--c-neon);
  color: var(--c-black);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .5px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 100%, 10px 100%);
  transition: background .2s ease, color .2s ease;
}
.site-header__cta:hover {
  background: var(--c-white);
}
.site-header__cta-arrow {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  transition: transform .2s var(--ease-snap);
}
.site-header__cta:hover .site-header__cta-arrow {
  transform: translateX(4px);
}
.site-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 44px;
  height: 44px;
  padding: 6px;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid transparent;
  transition: background .2s, border-color .2s;
}
.site-nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 1px 0;
  background: var(--c-white);
  transition: transform .25s var(--ease-snap), opacity .2s, background .2s;
}
.site-nav-toggle:hover .site-nav-toggle__bar {
  background: var(--c-neon);
}
.site-nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1;
  margin-top: 2px;
  color: var(--c-silver);
  letter-spacing: .5px;
}
.site-nav-toggle[data-open] {
  background: var(--c-ink);
  border-color: var(--c-rock);
}
.site-nav-toggle[data-open] .site-nav-toggle__bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
  background: var(--c-neon);
}
.site-nav-toggle[data-open] .site-nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.site-nav-toggle[data-open] .site-nav-toggle__bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
  background: var(--c-neon);
}
.site-footer {
  position: relative;
  padding: var(--space-7) 0 0;
  background: var(--c-black);
  border-top: 1px solid var(--c-rock-light);
  overflow: hidden;
}
.site-footer::before {
  content: "8868";
  position: absolute;
  top: -90px;
  right: -30px;
  font-family: var(--font-mono);
  font-size: 260px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -12px;
  color: rgba(20, 23, 28, .55);
  pointer-events: none;
  user-select: none;
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(46, 50, 56, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 50, 56, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.site-footer__accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-neon) 0%, var(--c-purple) 55%, transparent 100%);
  clip-path: polygon(0 0, 100% 0, 97% 100%, 0 100%);
  z-index: 1;
}
.site-footer__top {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.6fr;
  gap: var(--space-5);
  padding-bottom: var(--space-6);
}
.site-footer__brand {
  max-width: 320px;
}
.site-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-3);
  text-decoration: none;
}
.site-footer__logo-mark {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -1px;
  padding: 7px 10px 6px;
  background: var(--c-neon);
  color: var(--c-black);
}
.site-footer__logo-text {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 900;
  color: var(--c-white);
  letter-spacing: 1px;
}
.site-footer__trust {
  color: var(--c-silver);
  font-size: 14px;
  line-height: 1.75;
  margin-top: 12px;
}
.site-footer__col,
.site-footer__contact {
  position: relative;
  z-index: 1;
}
.site-footer__label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-neon);
  margin-bottom: var(--space-3);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-rock-light);
}
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--c-silver);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s, transform .2s var(--ease-out);
}
.site-footer__links a::before {
  content: "/";
  font-family: var(--font-mono);
  color: var(--c-purple);
  font-size: 13px;
}
.site-footer__links a:hover {
  color: var(--c-neon);
  transform: translateX(4px);
}
.site-footer__meta {
  display: inline-block;
  color: var(--c-silver);
  font-size: 14px;
  line-height: 1.6;
  padding-left: 12px;
  position: relative;
}
.site-footer__meta::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--c-purple);
}
.site-footer__note {
  margin-top: var(--space-3);
  padding: 12px 14px;
  border-left: 2px solid var(--c-purple);
  background: var(--c-ink);
  color: var(--c-silver);
  font-size: 12px;
  line-height: 1.7;
}
.site-footer__bottom {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--c-rock-light);
  padding: 16px 0;
  background: rgba(10, 10, 14, .7);
}
.site-footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: var(--c-silver);
  font-size: 13px;
}
.site-footer__bottom-inner p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
}
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 950;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: var(--c-ink);
  border: 1px solid var(--c-rock);
  color: var(--c-neon);
  font-size: 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s var(--ease-out), transform .3s var(--ease-out), visibility .3s, border-color .2s, background .2s;
}
.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  border-color: var(--c-neon);
  background: rgba(200, 255, 0, .08);
}
.back-top__arrow {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
}
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + var(--space-7)) 0 var(--space-6);
  background: var(--c-black);
  border-bottom: 1px solid var(--c-rock-light);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 55%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, var(--c-purple-soft) 45%, var(--c-neon-soft) 100%);
  clip-path: polygon(25% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--c-neon) 0%, var(--c-purple) 60%, transparent 100%);
}
.page-hero__index {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--c-neon);
  margin-bottom: var(--space-2);
  display: block;
}
.page-hero__title {
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--c-white);
  max-width: 720px;
}
.breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: var(--space-3) 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-silver);
}
.breadcrumb a {
  color: var(--c-silver);
  text-decoration: none;
  transition: color .2s;
}
.breadcrumb a:hover {
  color: var(--c-neon);
}
.breadcrumb__sep {
  color: var(--c-rock);
}
.breadcrumb__current {
  color: var(--c-white);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  border: none;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 8px 100%);
  transition: background .2s, color .2s, border-color .2s, transform .2s var(--ease-out);
}
.btn:active {
  transform: scale(.97);
}
.btn--primary {
  background: var(--c-neon);
  color: var(--c-black);
}
.btn--primary:hover {
  background: var(--c-white);
}
.btn--ghost {
  background: transparent;
  color: var(--c-silver);
  border: 1px solid var(--c-rock);
}
.btn--ghost:hover {
  color: var(--c-neon);
  border-color: var(--c-neon-line);
  background: var(--c-neon-soft);
}
.section-block {
  position: relative;
  padding: var(--space-7) 0;
}
.section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -4px;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-rock);
  user-select: none;
}
.section-title {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -.5px;
  color: var(--c-white);
  margin-top: var(--space-2);
}
.mono-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-neon);
}
.mono-label::before {
  content: "//";
  color: var(--c-purple);
  letter-spacing: 0;
}
.card {
  position: relative;
  background: var(--c-ink);
  border: 1px solid var(--c-rock);
  padding: var(--space-4);
  transition: transform .25s var(--ease-out), border-color .25s, box-shadow .25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--c-neon-line);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .45), 0 0 0 1px var(--c-neon-soft);
}
.card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-white);
  margin-bottom: var(--space-2);
}
.card__text {
  color: var(--c-silver);
  font-size: 14px;
  line-height: 1.7;
}
.grid {
  display: grid;
  gap: var(--space-4);
}
.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--c-ink);
  border: 1px solid var(--c-rock);
  aspect-ratio: 16 / 9;
}
.image-frame--wide {
  aspect-ratio: 21 / 9;
}
.image-frame--tall {
  aspect-ratio: 3 / 4;
}
.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-purple-soft) 0%, transparent 60%);
  opacity: .4;
  pointer-events: none;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--c-silver);
  background: var(--c-ink);
  border: 1px solid var(--c-rock);
  white-space: nowrap;
}
.tag--neon {
  color: var(--c-neon);
  border-color: var(--c-neon-line);
  background: var(--c-neon-soft);
}
.tag--purple {
  color: #B794FF;
  border-color: var(--c-purple-line);
  background: var(--c-purple-soft);
}
.divider {
  display: block;
  height: 1px;
  border: none;
  background: linear-gradient(90deg, var(--c-rock) 0%, var(--c-rock-light) 40%, transparent 100%);
}
.divider--accent {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, var(--c-rock) 0%, var(--c-rock-light) 70%, transparent 100%);
}
.divider--accent::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-neon) 0%, var(--c-purple) 100%);
}
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1024px) {
  .site-header__cta {
    display: none;
  }
  .site-header__inner {
    gap: var(--space-3);
  }
  .site-nav__link {
    padding: 8px 8px;
    font-size: 13px;
  }
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5) var(--space-4);
  }
  .section-index {
    font-size: 72px;
  }
  .page-hero__title {
    font-size: 36px;
  }
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 768px) {
  .site-header__inner {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .site-brand__text {
    display: none;
  }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    bottom: 0;
    width: min(320px, 86vw);
    padding: var(--space-5) var(--space-4);
    background: rgba(10, 10, 14, .98);
    border-left: 1px solid var(--c-rock);
    box-shadow: -20px 0 60px rgba(0, 0, 0, .6);
    transform: translateX(105%);
    transition: transform .35s var(--ease-snap), visibility .35s;
    visibility: hidden;
    overflow-y: auto;
    z-index: 1005;
  }
  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .site-nav__item + .site-nav__item {
    border-top: 1px solid var(--c-rock-light);
  }
  .site-nav__link {
    display: block;
    padding: 14px 4px;
    font-size: 16px;
    color: var(--c-white);
  }
  .site-nav__link::after {
    left: 4px;
    right: auto;
    width: 28px;
    bottom: 6px;
    transform: scaleX(0);
    transform-origin: left;
  }
  .site-nav__link[aria-current="page"] {
    color: var(--c-neon);
  }
  .site-nav-toggle {
    display: flex;
  }
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .site-footer__brand {
    max-width: none;
  }
  .site-footer::before {
    font-size: 140px;
    top: -40px;
    right: -20px;
  }
  .section-index {
    font-size: 56px;
  }
  .section-title {
    font-size: 30px;
  }
  .page-hero {
    padding-top: calc(var(--header-h) + var(--space-5));
    padding-bottom: var(--space-4);
  }
  .page-hero__title {
    font-size: 28px;
  }
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
  .back-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }
  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 480px) {
  .site-brand__mark {
    font-size: 18px;
    padding: 6px 7px 5px;
  }
  .section-index {
    font-size: 44px;
    letter-spacing: -2px;
  }
  .section-title {
    font-size: 24px;
  }
  .page-hero__title {
    font-size: 24px;
  }
  .btn {
    width: 100%;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .back-top {
    transition: none !important;
  }
}