:root {
  --color-deep-space: #0B0F1C;
  --color-midnight: #101830;
  --color-steel: #2C3A5E;
  --color-green: #C6FF00;
  --color-orange: #FF6C2C;
  --color-ice: #F2F4F8;
  --color-muted: #7A8699;
  --color-green-glow: rgba(198,255,0,0.15);
  --color-orange-glow: rgba(255,108,44,0.12);
  --font-display: "Noto Sans SC", "HarmonyOS Sans", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-height: 68px;
  --container-max: 1200px;
  --chamfer: 18px;
}

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

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-color: var(--color-steel) var(--color-deep-space);
  scrollbar-width: thin;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--color-deep-space);
  background-image:
    linear-gradient(rgba(198,255,0,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198,255,0,0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--color-ice);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--color-green);
  color: var(--color-deep-space);
}

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

a {
  color: var(--color-green);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-ice);
}

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

p {
  margin: 0 0 1em;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.6em;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.18;
  color: var(--color-ice);
}

h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
}

h3 {
  font-size: 1.2rem;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 300;
  padding: 12px 18px 12px 20px;
  background: var(--color-green);
  color: var(--color-deep-space);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: skewX(-5deg);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 210;
  width: var(--scroll-progress, 0%);
  height: 4px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 28, 0.94);
  border-bottom: 1px solid var(--color-steel);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  width: 3px;
  background: linear-gradient(180deg, var(--color-green), var(--color-orange));
}

.site-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 1;
  width: min(360px, 48vw);
  height: 2px;
  background: linear-gradient(90deg, var(--color-green) 0 72%, var(--color-orange) 72% 100%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.6vw, 24px);
  max-width: 1280px;
  min-height: var(--header-height);
  margin-inline: auto;
  padding-inline: clamp(12px, 3vw, 32px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 1;
}

.brand__mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-ice);
  transform: skewX(-8deg);
  transition: color 0.2s ease;
}

.brand__slash {
  display: inline-block;
  width: 15px;
  height: 3px;
  background: var(--color-green);
  transform: skewX(-32deg);
  transition: background 0.2s ease;
}

.brand__text {
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-muted);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.brand:hover .brand__mark {
  color: var(--color-green);
}

.brand:hover .brand__slash {
  background: var(--color-orange);
}

.brand:hover .brand__text {
  color: var(--color-ice);
}

.site-nav {
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-nav__item + .site-nav__item::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  margin-right: clamp(12px, 1.8vw, 24px);
  background: var(--color-orange);
  transform: rotate(45deg);
  opacity: 0.75;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 4px 12px;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-ice);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.site-nav__link::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 7px;
  width: 0;
  height: 2px;
  background: var(--color-green);
  transition: width 0.22s ease;
}

.site-nav__link:hover {
  color: var(--color-green);
}

.site-nav__link:hover::before {
  width: 100%;
}

.site-nav__link[aria-current="page"] {
  color: var(--color-green);
}

.site-nav__link[aria-current="page"]::before {
  width: 100%;
  background: var(--color-orange);
}

.site-header__action {
  position: relative;
  margin-left: 6px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: 2px;
  padding: 10px 14px;
  background: var(--color-midnight);
  border: 1px solid var(--color-steel);
  color: var(--color-ice);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 18px;
  height: 13px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease;
}

.nav-toggle__text {
  font-size: 13px;
  letter-spacing: 0.08em;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-ice);
  background: var(--color-midnight);
  border: 1px solid var(--color-steel);
  text-decoration: none;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  color: var(--color-green);
  border-color: var(--color-green);
}

.btn--primary {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-deep-space);
  font-weight: 800;
}

.btn--primary:hover {
  background: var(--color-green);
  border-color: var(--color-green);
  color: var(--color-deep-space);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ice);
}

.btn--ghost:hover {
  background: var(--color-green-glow);
  color: var(--color-green);
  border-color: var(--color-green);
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

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

.section--tight {
  padding-block: clamp(28px, 4vw, 48px);
}

.section--alt {
  background: var(--color-midnight);
  border-top: 1px solid var(--color-steel);
  border-bottom: 1px solid var(--color-steel);
}

.grid {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.panel {
  position: relative;
  padding: clamp(20px, 3.2vw, 34px);
  background:
    linear-gradient(180deg, rgba(198,255,0,0.05), transparent 38%),
    var(--color-midnight);
  border: 1px solid var(--color-steel);
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer)));
}

.card {
  position: relative;
  padding: 24px;
  background: var(--color-midnight);
  border: 1px solid var(--color-steel);
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer)));
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-green);
  background:
    linear-gradient(180deg, var(--color-green-glow), transparent 55%),
    var(--color-midnight);
}

.card__title {
  margin: 0 0 10px;
}

.card p:last-child {
  margin-bottom: 0;
}

.corner {
  position: relative;
}

.corner::before,
.corner::after {
  content: "";
  position: absolute;
  z-index: 2;
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-green);
  pointer-events: none;
}

.corner::before {
  top: -6px;
  left: -6px;
  border-right: 0;
  border-bottom: 0;
}

.corner::after {
  right: -6px;
  bottom: -6px;
  border-left: 0;
  border-top: 0;
}

.corner--orange::before,
.corner--orange::after {
  border-color: var(--color-orange);
}

.type-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-green);
  text-transform: uppercase;
}

.type-kicker::before {
  content: "";
  width: 20px;
  height: 4px;
  background: var(--color-orange);
  transform: skewX(-20deg);
}

.type-display {
  display: block;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--color-ice);
  transform: skewX(-5deg);
  transform-origin: left center;
  text-wrap: balance;
}

.section-title {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-ice);
  transform: skewX(-5deg);
  transform-origin: left center;
}

.section-title::after {
  content: "";
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  background: var(--color-green);
  transform: skewX(5deg);
}

.text-muted {
  color: var(--color-muted);
}

.link-arrow {
  display: inline-block;
  margin-left: 6px;
  transition: transform 0.2s ease;
}

a:hover .link-arrow,
.link-arrow:hover {
  transform: translateX(4px);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--color-muted);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-right: 8px;
  background: var(--color-orange);
  transform: rotate(45deg);
}

.breadcrumbs a {
  color: var(--color-ice);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

.stat {
  display: grid;
  gap: 8px;
}

.stat__value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.2vw, 3rem);
  font-weight: 800;
  line-height: 1;
  color: var(--color-green);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-muted);
}

.progress {
  height: 8px;
  overflow: hidden;
  background: var(--color-steel);
}

.progress__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transition: width 0.5s ease;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--color-green-glow);
  border: 1px solid rgba(198,255,0,0.4);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-green);
  white-space: nowrap;
}

.tag::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  background: var(--color-orange);
  transform: rotate(45deg);
}

.figure {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-midnight) 0%, var(--color-deep-space) 100%);
  border: 1px solid var(--color-steel);
  clip-path: polygon(0 0, calc(100% - var(--chamfer)) 0, 100% var(--chamfer), 100% 100%, var(--chamfer) 100%, 0 calc(100% - var(--chamfer)));
  aspect-ratio: 16 / 9;
}

.figure--wide {
  aspect-ratio: 21 / 9;
}

.figure--portrait {
  aspect-ratio: 3 / 4;
}

.figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.figure:hover img {
  transform: scale(1.04);
}

.figure__placeholder {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(110deg, transparent 42%, var(--color-green-glow) 42% 46%, transparent 46%),
    var(--color-midnight);
}

.site-footer {
  position: relative;
  z-index: 10;
  background: var(--color-midnight);
  border-top: 1px solid var(--color-steel);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-green) 0 18%, var(--color-orange) 18% 30%, transparent 30% 100%);
  opacity: 0.9;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr) minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 5vw, 56px);
  padding-block: clamp(40px, 6vw, 64px) clamp(24px, 4vw, 40px);
}

.site-footer__brand {
  display: grid;
  gap: 14px;
  align-content: start;
}

.brand--footer {
  margin-right: 0;
}

.site-footer__about {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  color: var(--color-muted);
}

.site-footer__trust {
  margin: 0;
  max-width: 44ch;
  padding-left: 12px;
  border-left: 2px solid var(--color-orange);
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-muted);
}

.site-footer__nav,
.site-footer__legal,
.site-footer__contact {
  min-width: 0;
}

.site-footer__heading {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-muted);
}

.site-footer__heading a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer__heading a:hover {
  color: var(--color-green);
}

.site-footer__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__list a {
  color: var(--color-ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-footer__list a:hover {
  color: var(--color-green);
  border-bottom-color: var(--color-green);
}

.site-footer__contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--color-muted);
}

.site-footer__contact-list li:last-child {
  line-height: 1.5;
}

.site-footer__contact-key {
  display: inline-block;
  min-width: 42px;
  margin-right: 4px;
  color: var(--color-green);
  font-weight: 700;
}

.site-footer__meta {
  border-top: 1px solid var(--color-steel);
  padding-block: 16px;
}

.site-footer__meta-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 13px;
  color: var(--color-muted);
}

.site-footer__copyright,
.site-footer__icp {
  margin: 0;
}

.scroll-top {
  position: fixed;
  right: clamp(16px, 3vw, 28px);
  bottom: clamp(16px, 3vw, 28px);
  z-index: 80;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  background: var(--color-orange);
  border: none;
  color: var(--color-deep-space);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.25s ease;
}

.scroll-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.scroll-top:hover {
  background: var(--color-green);
}

.scroll-top__icon {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 1100px) {
  .site-nav__link {
    font-size: 0.86rem;
    letter-spacing: 0.02em;
  }

  .site-header__action {
    min-height: 40px;
    padding-inline: 14px;
    font-size: 13px;
  }

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

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

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    margin: 0;
    background: rgba(16, 24, 48, 0.98);
    border-bottom: 2px solid var(--color-green);
    box-shadow: 0 18px 32px rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 0 14px;
  }

  .site-nav__item {
    display: block;
  }

  .site-nav__item + .site-nav__item {
    border-top: 1px solid var(--color-steel);
  }

  .site-nav__item + .site-nav__item::before {
    display: none;
  }

  .site-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 24px;
    font-size: 15px;
    color: var(--color-ice);
  }

  .site-nav__link::before {
    display: none;
  }

  .site-nav__link::after {
    content: "";
    flex: 0 0 auto;
    width: 6px;
    height: 6px;
    background: var(--color-orange);
    transform: rotate(45deg);
  }

  .site-nav__link:hover {
    background: var(--color-green-glow);
    color: var(--color-green);
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(198, 255, 0, 0.08);
    color: var(--color-green);
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

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

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__meta-inner {
    flex-direction: column;
    gap: 6px;
  }

  .site-footer__meta-inner,
  .site-footer__inner {
    padding-inline: 16px;
  }

  .site-header__inner {
    padding-inline: 12px;
  }
}

@media (max-width: 520px) {
  .brand__text {
    display: none;
  }

  .site-header__action {
    min-height: 40px;
    padding-inline: 12px;
    font-size: 13px;
  }

  .nav-toggle {
    padding: 8px 10px;
    gap: 6px;
  }
}

@media (max-width: 400px) {
  .nav-toggle__text {
    display: 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;
    transition-delay: 0ms !important;
  }

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

  .scroll-top {
    transform: none;
  }
}