:root {
  --deep-space-blue: #0a0e1a;
  --neon-green: #00ff9d;
  --dark-gold: #c9a84c;
  --rock-gray: #8a8f98;
  --moss-green: #5d7a5e;
  --terracotta: #b5765a;
  --cream-white: #f5f0e6;
  --graphite: #1a1e29;
  --font-display: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-body: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --header-width: 240px;
  --content-max: 1120px;
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  margin-left: var(--header-width);
  background: var(--deep-space-blue);
  color: var(--cream-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(138, 143, 152, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 143, 152, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
}

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

a:hover {
  color: var(--cream-white);
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

p {
  margin: 0 0 1em;
}

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

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

.skip-link {
  position: fixed;
  left: -999px;
  top: 0;
  background: var(--neon-green);
  color: var(--deep-space-blue);
  padding: 8px 16px;
  z-index: 300;
  font-weight: 700;
  border-radius: 0 0 6px 0;
}

.skip-link:focus {
  left: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-green), var(--dark-gold));
  transform: scaleX(0);
  transform-origin: 0 0;
  z-index: 400;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--header-width);
  height: 100vh;
  padding: 24px 16px;
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-right: 1px solid rgba(0, 255, 157, 0.2);
  z-index: 100;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
  overflow-y: auto;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(2px 2px at 40px 80px, rgba(0, 255, 157, 0.7), transparent),
    radial-gradient(3px 3px at 150px 220px, rgba(0, 255, 157, 0.35), transparent),
    radial-gradient(2px 2px at 90px 400px, rgba(201, 168, 76, 0.5), transparent),
    radial-gradient(1px 1px at 180px 560px, rgba(0, 255, 157, 0.6), transparent);
  opacity: 0.5;
}

.site-header__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.site-identity {
  margin-bottom: 40px;
}

.site-identity__mark {
  display: inline-block;
  text-decoration: none;
}

.site-identity__badge {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--neon-green);
  border: 1px solid currentColor;
  padding: 4px 10px;
  font-weight: 700;
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(0, 255, 157, 0.15);
}

.site-identity__text {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  font-style: italic;
  color: var(--cream-white);
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-top: 10px;
}

.site-identity__sub {
  display: block;
  font-size: 9px;
  letter-spacing: 0.32em;
  color: var(--rock-gray);
  margin-top: 4px;
}

.site-nav {
  position: relative;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__item {
  margin-bottom: 2px;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: 10px 10px 10px 12px;
  color: var(--rock-gray);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 4px;
  letter-spacing: 0.08em;
  transition: color 0.25s, background-color 0.25s;
}

.site-nav__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 16px;
  background: var(--neon-green);
  transform: translateY(-50%);
  border-radius: 0 2px 2px 0;
  opacity: 0;
  transition: width 0.25s, opacity 0.25s;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--cream-white);
  background: rgba(255, 255, 255, 0.04);
}

.site-nav__link:hover::before,
.site-nav__link:focus-visible::before {
  width: 3px;
  opacity: 1;
}

.site-nav__link[aria-current="page"] {
  color: var(--neon-green);
  background: rgba(0, 255, 157, 0.08);
}

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--neon-green);
  box-shadow: 0 0 12px var(--neon-green);
}

.site-nav__link[aria-current="page"]::before {
  width: 3px;
  opacity: 1;
}

.site-nav__cta {
  margin-top: auto;
  display: block;
  text-align: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--neon-green), #00c47d);
  color: var(--deep-space-blue);
  font-weight: 700;
  letter-spacing: 0.12em;
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.site-nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(0, 255, 157, 0.35);
  color: var(--deep-space-blue);
}

.nav-toggle {
  display: none;
}

.site-footer {
  position: relative;
  background: var(--graphite);
  border-top: 1px solid rgba(0, 255, 157, 0.25);
  padding: 48px 40px 24px;
  color: var(--cream-white);
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-green) 0%, var(--dark-gold) 50%, transparent 100%);
}

.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 32px;
}

.site-footer__brand .site-footer__title {
  font-size: 28px;
  font-style: italic;
  color: var(--cream-white);
}

.site-footer__label {
  display: inline-block;
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--dark-gold);
  border: 1px solid rgba(201, 168, 76, 0.5);
  padding: 3px 8px;
}

.site-footer__statement {
  margin-top: 16px;
  font-size: 14px;
  color: var(--rock-gray);
  line-height: 1.8;
  max-width: 30em;
}

.site-footer__heading {
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--neon-green);
  margin-bottom: 16px;
  font-family: var(--font-display);
  text-transform: uppercase;
}

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

.site-footer__list a {
  color: var(--cream-white);
  font-size: 14px;
  opacity: 0.8;
  transition: color 0.2s, opacity 0.2s, padding-left 0.2s;
}

.site-footer__list a:hover {
  color: var(--neon-green);
  opacity: 1;
  padding-left: 4px;
}

.site-footer__contact p {
  font-size: 14px;
  color: var(--rock-gray);
  margin: 0 0 6px;
}

.site-footer__note {
  color: var(--dark-gold) !important;
  font-size: 12px !important;
  line-height: 1.6;
}

.site-footer__bottom {
  max-width: var(--content-max);
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(138, 143, 152, 0.2);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--rock-gray);
}

.site-footer__icp {
  letter-spacing: 0.08em;
  color: var(--dark-gold);
}

.content-container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.section {
  margin-bottom: 56px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--dark-gold);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--neon-green);
  display: inline-block;
}

.display-title {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  color: var(--cream-white);
  font-style: italic;
  transform: skew(-2deg);
}

.rotated-note {
  writing-mode: vertical-rl;
  font-size: 12px;
  color: var(--rock-gray);
  letter-spacing: 0.3em;
  border-left: 1px solid var(--dark-gold);
  padding-left: 8px;
  max-height: 120px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s, border-color 0.25s, color 0.25s, transform 0.25s, box-shadow 0.25s;
}

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

.btn--primary:hover {
  background: #00d985;
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.25);
}

.btn--ghost {
  background: transparent;
  color: var(--cream-white);
  border-color: var(--rock-gray);
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  font-size: 14px;
  color: var(--rock-gray);
}

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

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

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li:not(:last-child)::after {
  content: "";
  width: 12px;
  height: 1px;
  background: var(--dark-gold);
}

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

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

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

.card {
  background: rgba(245, 240, 230, 0.06);
  border: 1px solid rgba(138, 143, 152, 0.25);
  border-radius: 10px;
  padding: 24px;
  color: var(--cream-white);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--neon-green);
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(0, 255, 157, 0.08);
}

.card__title {
  font-size: 20px;
  margin-bottom: 8px;
}

.card__text {
  font-size: 14px;
  color: var(--rock-gray);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
}

.tag--green {
  color: var(--neon-green);
  border-color: var(--neon-green);
  background: rgba(0, 255, 157, 0.08);
}

.tag--gold {
  color: var(--dark-gold);
  border-color: var(--dark-gold);
  background: rgba(201, 168, 76, 0.08);
}

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

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

@media (min-width: 901px) and (max-width: 1100px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  body {
    margin-left: 0;
    padding-top: 64px;
  }

  .site-header {
    width: 100%;
    height: 64px;
    padding: 0 16px;
    flex-direction: row;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid rgba(0, 255, 157, 0.25);
    overflow: visible;
  }

  .site-header__inner {
    flex-direction: row;
    align-items: center;
    width: 100%;
    justify-content: space-between;
  }

  .site-identity {
    margin-bottom: 0;
  }

  .site-identity__text {
    font-size: 22px;
    margin-top: 4px;
  }

  .site-identity__badge {
    font-size: 10px;
  }

  .site-identity__sub {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(0, 255, 157, 0.4);
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
  }

  .nav-toggle__line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--neon-green);
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    height: calc(100vh - 64px);
    width: 280px;
    max-width: 85vw;
    padding: 24px 20px;
    background: var(--deep-space-blue);
    border-right: 1px solid rgba(0, 255, 157, 0.3);
    box-shadow: 8px 0 30px rgba(0, 0, 0, 0.4);
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 90;
  }

  .site-nav[data-open] {
    transform: translateX(0);
  }

  .site-nav__cta {
    margin-top: 24px;
  }

  .site-footer {
    padding: 40px 20px 20px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .content-container {
    padding: 32px 16px 48px;
  }
}

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

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

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