:root {
  --color-deep-space-blue: #0B1D2E;
  --color-metal-silver: #C0C8D0;
  --color-volt-green: #39FF14;
  --color-electric-blue-green: #00E5FF;
  --color-arena-red: #FF2E3F;
  --color-deep-teal: #0A2A3D;
  --color-warm-white: #F5F7FA;
  --color-slate-blue: #4A5A6A;
  --color-violet: #7A4FFF;
  --color-dark-red: #8C1F28;
  --color-dark-surface: #0D2438;
  --color-warm-white-dim: rgba(245, 247, 250, 0.72);
  --color-warm-white-dark: rgba(245, 247, 250, 0.48);
  --color-glass-border: rgba(255, 255, 255, 0.12);
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --text-heading: 32px;
  --text-title: 22px;
  --text-body: 16px;
  --text-body-sm: 14px;
  --text-caption: 12px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --container-width: 1280px;
  --header-height: 48px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 320ms cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-panel: 0 4px 24px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-focus: 0 0 0 3px rgba(57, 255, 20, 0.45);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--color-warm-white);
  background-color: var(--color-deep-space-blue);
  background-image: 
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-electric-blue-green);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  appearance: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--color-slate-blue);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}

input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: none;
  border-color: var(--color-volt-green);
  box-shadow: var(--shadow-focus);
}

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.is-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
  padding: 0 !important;
  margin: -1px !important;
}

.skip-link {
  position: fixed;
  top: 0;
  left: var(--space-4);
  z-index: 300;
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-volt-green);
  color: var(--color-deep-space-blue);
  font-weight: 900;
  font-size: var(--text-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  white-space: nowrap;
  width: 1px;
}

.skip-link:focus {
  clip: auto;
  clip-path: none;
  width: auto;
  height: auto;
  overflow: visible;
  box-shadow: 0 0 0 4px var(--color-deep-space-blue), 0 0 0 8px var(--color-volt-green);
}

/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--header-height);
  background-color: rgba(11, 29, 46, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-glass-border);
}

.site-header__bar {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.site-header__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-volt-green);
  color: var(--color-deep-space-blue);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.02em;
  transform: skewX(-8deg);
  border-radius: 2px;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-body);
  letter-spacing: 0.12em;
  color: var(--color-warm-white);
  white-space: nowrap;
}

.site-header__brand:hover .site-header__brand-name {
  color: var(--color-volt-green);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  white-space: nowrap;
}

.site-nav__list::-webkit-scrollbar {
  display: none;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  color: var(--color-warm-white-dim);
  font-size: var(--text-body-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 2px;
  height: 2px;
  background-color: var(--color-volt-green);
  transform: skewX(-30deg) scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base), background-color var(--transition-base);
}

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

.site-nav__link:hover::after {
  transform: skewX(-30deg) scaleX(1);
}

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

.site-nav__link[aria-current="page"]::after {
  transform: skewX(-30deg) scaleX(1);
  background-color: var(--color-volt-green);
}

.site-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  margin-left: auto;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.3);
  padding: 3px var(--space-3);
  border-radius: 100px;
  height: 26px;
}

.status-pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 100px;
  background-color: var(--color-volt-green);
  box-shadow: 0 0 6px var(--color-volt-green), 0 0 12px rgba(57, 255, 20, 0.4);
}

.status-pill__label {
  font-size: var(--text-caption);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-volt-green);
  white-space: nowrap;
}

.site-header__clock {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-warm-white-dim);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.site-header__nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-sm);
  background-color: rgba(192, 200, 208, 0.08);
  color: var(--color-warm-white);
  font-size: var(--text-body-sm);
  font-weight: 700;
}

.site-header__nav-toggle:hover {
  border-color: var(--color-volt-green);
  color: var(--color-volt-green);
}

.site-header__nav-toggle[aria-expanded="true"] {
  background-color: var(--color-volt-green);
  color: var(--color-deep-space-blue);
  border-color: transparent;
}

.site-header__nav-toggle-icon {
  position: relative;
  width: 14px;
  height: 2px;
  background-color: currentColor;
  transition: background-color var(--transition-fast);
}

.site-header__nav-toggle-icon::before,
.site-header__nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--transition-base);
}

.site-header__nav-toggle-icon::before {
  top: -5px;
}

.site-header__nav-toggle-icon::after {
  top: 5px;
}

.site-header__nav-toggle[aria-expanded="true"] .site-header__nav-toggle-icon {
  background-color: transparent;
}

.site-header__nav-toggle[aria-expanded="true"] .site-header__nav-toggle-icon::before {
  transform: translateY(5px) rotate(45deg);
}

.site-header__nav-toggle[aria-expanded="true"] .site-header__nav-toggle-icon::after {
  transform: translateY(-5px) rotate(-45deg);
}

/* ========== FOOTER ========== */
.site-footer {
  background-color: var(--color-deep-space-blue);
  background-image: linear-gradient(140deg, rgba(0, 229, 255, 0.05) 0%, transparent 40%, rgba(57, 255, 20, 0.03) 100%);
  border-top: 1px solid var(--color-glass-border);
  overflow: hidden;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 5%;
  right: 15%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-volt-green), var(--color-electric-blue-green), transparent);
  transform: skewX(-30deg);
  transform-origin: left top;
  opacity: 0.7;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  padding-top: var(--space-8);
  padding-bottom: var(--space-7);
}

@media (min-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-8);
  }
}

.site-footer__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-footer__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-volt-green);
  color: var(--color-deep-space-blue);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 16px;
  transform: skewX(-8deg);
  border-radius: 2px;
}

.site-footer__brand-name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-title);
  color: var(--color-warm-white);
  letter-spacing: 0.1em;
}

.site-footer__description {
  color: var(--color-warm-white-dim);
  font-size: var(--text-body-sm);
  line-height: 1.8;
  max-width: 420px;
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__contact li {
  display: flex;
  gap: var(--space-2);
  font-size: var(--text-body-sm);
}

.site-footer__contact-label {
  color: var(--color-slate-blue);
  font-weight: 700;
  min-width: 56px;
  letter-spacing: 0.02em;
}

.site-footer__contact-value {
  color: var(--color-warm-white-dim);
}

.site-footer__aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 480px) {
  .site-footer__aside {
    grid-template-columns: 1fr 1fr;
  }
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-body-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-warm-white);
  margin-bottom: var(--space-4);
  position: relative;
  padding-bottom: var(--space-2);
}

.site-footer__heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-volt-green);
  transform: skewX(-30deg);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__link {
  color: var(--color-warm-white-dim);
  font-size: var(--text-body-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.site-footer__link::before {
  content: "//";
  color: var(--color-electric-blue-green);
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  opacity: 0.8;
}

.site-footer__link:hover {
  color: var(--color-volt-green);
  gap: var(--space-3);
}

.site-footer__service-text {
  color: var(--color-warm-white-dim);
  font-size: var(--text-body-sm);
  line-height: 1.7;
}

.site-footer__bottom {
  border-top: 1px solid var(--color-glass-border);
  background-color: rgba(0, 0, 0, 0.2);
}

.site-footer__bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .site-footer__bottom-inner {
    flex-direction: row;
    align-items: center;
  }
}

.site-footer__copyright {
  color: var(--color-warm-white-dark);
  font-size: var(--text-caption);
}

.site-footer__icp {
  font-size: var(--text-caption);
}

.site-footer__icp-text {
  color: var(--color-warm-white-dark);
}

/* ========== SCROLL PROGRESS ========== */
[data-scroll-progress] {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: transparent;
  z-index: 250;
  pointer-events: none;
}

[data-scroll-progress]::before {
  content: "";
  display: block;
  height: 100%;
  background-color: var(--color-volt-green);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 80ms linear;
}

/* ========== LAYOUT PRIMITIVES ========== */
.section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-9);
    padding-bottom: var(--space-9);
  }
}

.section__heading {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-heading);
  line-height: 1.25;
  color: var(--color-warm-white);
  transform: skewX(-6deg);
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background-color: rgba(0, 229, 255, 0.08);
  border-left: 4px solid var(--color-electric-blue-green);
  margin-bottom: var(--space-6);
}

.card {
  background-color: var(--color-metal-silver);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  color: var(--color-deep-space-blue);
}

.card--glass {
  background-color: rgba(192, 200, 208, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  color: var(--color-warm-white);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--text-caption);
  color: var(--color-warm-white-dim);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-glass-border);
}

.breadcrumb a {
  color: var(--color-warm-white-dim);
}

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

.breadcrumb__separator {
  color: var(--color-slate-blue);
}

.breadcrumb__current {
  color: var(--color-volt-green);
}

/* ========== IMAGE CONTAINER ========== */
.img-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-deep-teal);
  border: 1px solid var(--color-glass-border);
}

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

.img-frame--tall {
  aspect-ratio: 4 / 5;
}

.img-frame__media {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== NUMBERS ========== */
.num {
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
}

/* ========== MOBILE NAV ========== */
@media (max-width: 767px) {
  .site-header__meta {
    gap: var(--space-2);
  }

  .status-pill__label {
    display: none;
  }

  .status-pill {
    width: 28px;
    justify-content: center;
    padding: 0;
  }

  .site-header__clock {
    display: none;
  }

  .site-header__nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 199;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    background-color: rgba(11, 29, 46, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--color-glass-border);
    padding-top: var(--space-6);
    clip-path: inset(0 0 100% 0);
    visibility: hidden;
    opacity: 0;
    transition: clip-path var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .site-nav[data-open] {
    clip-path: inset(0 0 0 0);
    visibility: visible;
    opacity: 1;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    overflow-x: visible;
    overflow-y: auto;
    padding: 0 var(--space-5) var(--space-7);
  }

  .site-nav__link {
    padding: var(--space-4) var(--space-4);
    font-size: var(--text-body);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    width: 100%;
  }

  .site-nav__link::after {
    content: none;
  }

  .site-nav__link[aria-current="page"] {
    background-color: rgba(57, 255, 20, 0.08);
    border-left: 3px solid var(--color-volt-green);
  }

  .site-footer__inner {
    gap: var(--space-6);
    padding-top: var(--space-7);
  }
}

@media (max-width: 360px) {
  .site-header__brand-name {
    letter-spacing: 0.04em;
    font-size: 15px;
  }

  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}