:root {
  color-scheme: dark;

  --color-ink-950: #05040d;
  --color-ink-900: #090719;
  --color-ink-850: #0d0a22;
  --color-ink-800: #12102b;
  --color-ink-700: #1b1740;
  --color-ink-600: #272052;

  --color-text: #f7f5ff;
  --color-text-strong: #ffffff;
  --color-text-muted: #b8b2d8;
  --color-text-soft: #8580a8;

  --color-violet: #7b2cff;
  --color-violet-strong: #9b5cff;
  --color-violet-soft: rgba(123, 44, 255, 0.18);

  --color-cyan: #19f7d2;
  --color-cyan-strong: #6effea;
  --color-cyan-soft: rgba(25, 247, 210, 0.14);

  --color-magenta: #ff2d7a;
  --color-magenta-strong: #ff4e95;
  --color-magenta-soft: rgba(255, 45, 122, 0.18);

  --color-gold: #ffd166;
  --color-line: rgba(255, 255, 255, 0.14);
  --color-line-strong: rgba(110, 255, 234, 0.38);
  --color-surface: rgba(13, 10, 34, 0.76);
  --color-surface-strong: rgba(18, 16, 43, 0.92);

  --font-display: "Russo One", "Arial Black", "Chakra Petch", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-body: "Chakra Petch", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1240px;
  --container-padding: clamp(18px, 4vw, 32px);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --section-space: 96px;
  --section-space-compact: 56px;

  --shadow-cyan: 0 0 24px rgba(25, 247, 210, 0.26), 0 0 64px rgba(25, 247, 210, 0.12);
  --shadow-violet: 0 0 28px rgba(123, 44, 255, 0.34), 0 0 76px rgba(123, 44, 255, 0.16);
  --shadow-magenta: 0 0 24px rgba(255, 45, 122, 0.38), 0 0 70px rgba(255, 45, 122, 0.18);

  --ease-out: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-snap: cubic-bezier(0.2, 0.8, 0.2, 1);
  --duration-fast: 160ms;
  --duration-base: 260ms;
  --duration-slow: 520ms;

  --z-header: 50;
  --z-menu: 80;
  --z-fixed-cta: 70;
  --z-dialog: 100;
}

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

html {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 100%;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  background: var(--color-ink-900);
}

body {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 100%;
  margin: 0;
  overflow-x: clip;
  background:
    radial-gradient(circle at 18% 8%, rgba(123, 44, 255, 0.22), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(25, 247, 210, 0.13), transparent 30%),
    linear-gradient(180deg, var(--color-ink-900) 0%, var(--color-ink-950) 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0.01em;
  word-break: normal;
  overflow-wrap: anywhere;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main,
.site-main,
.site-page {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
main,
nav,
section {
  display: block;
}

section,
header,
footer,
nav,
div {
  min-width: 0;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-text-strong);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

p {
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 0.22em;
  transition:
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-cyan-strong);
}

a:active {
  transform: translateY(1px);
}

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

img {
  height: auto;
  object-fit: cover;
  user-select: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

button:disabled,
input:disabled,
textarea:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

input,
textarea,
select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: rgba(5, 4, 13, 0.72);
  color: var(--color-text);
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  transition:
    border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out);
}

input,
select {
  min-height: 48px;
  padding: 0 16px;
}

textarea {
  min-height: 128px;
  padding: 14px 16px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: rgba(184, 178, 216, 0.62);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-cyan);
  background: rgba(9, 7, 25, 0.92);
  box-shadow:
    0 0 0 3px rgba(25, 247, 210, 0.14),
    0 0 28px rgba(25, 247, 210, 0.12),
    inset 0 0 0 1px rgba(25, 247, 210, 0.16);
}

label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

::selection {
  background: rgba(25, 247, 210, 0.28);
  color: var(--color-text-strong);
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 4px;
  box-shadow: 0 0 0 6px rgba(25, 247, 210, 0.14);
}

[hidden] {
  display: none !important;
}

[aria-hidden="true"] {
  pointer-events: none;
}

.site-header__brand,
.mobile-menu__brand {
  -webkit-tap-highlight-color: transparent;
}

.site-header__logo,
.mobile-menu__logo {
  flex: 0 0 auto;
  border-radius: 12px;
}

.site-header__brand-text,
.mobile-menu__brand-text {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-text-strong);
}

.site-header__nav-link,
.mobile-menu__link {
  -webkit-tap-highlight-color: transparent;
}

.button,
.site-header__cta,
.mobile-menu__cta {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.96rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.03em;
  white-space: nowrap;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.button::before,
.site-header__cta::before,
.mobile-menu__cta::before {
  content: "";
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
}

.button--primary,
.site-header__cta,
.mobile-menu__cta {
  border: 1px solid rgba(110, 255, 234, 0.58);
  background:
    linear-gradient(135deg, var(--color-magenta) 0%, #ff1869 48%, #c70eff 100%);
  color: var(--color-text-strong);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08) inset,
    var(--shadow-magenta),
    0 0 20px rgba(25, 247, 210, 0.22);
}

.button--primary::before,
.site-header__cta::before,
.mobile-menu__cta::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.34), transparent 32%, rgba(110, 255, 234, 0.25) 68%, transparent);
  opacity: 0.72;
  mix-blend-mode: screen;
}

.button--primary:hover,
.site-header__cta:hover,
.mobile-menu__cta:hover {
  color: var(--color-text-strong);
  transform: translateY(-2px);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 0 30px rgba(255, 45, 122, 0.52),
    0 0 64px rgba(25, 247, 210, 0.24);
}

.button--secondary {
  border: 1px solid rgba(110, 255, 234, 0.42);
  background:
    linear-gradient(180deg, rgba(25, 247, 210, 0.1), rgba(123, 44, 255, 0.08)),
    rgba(5, 4, 13, 0.46);
  color: var(--color-text-strong);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.04),
    0 0 26px rgba(25, 247, 210, 0.1);
}

.button--secondary::before {
  background: linear-gradient(90deg, transparent, rgba(25, 247, 210, 0.16), transparent);
  opacity: 0.8;
}

.button--secondary:hover {
  color: var(--color-cyan-strong);
  border-color: rgba(110, 255, 234, 0.78);
  transform: translateY(-2px);
  box-shadow:
    inset 0 0 0 1px rgba(25, 247, 210, 0.14),
    var(--shadow-cyan);
}

.hero-kicker,
.hero-content__eyebrow,
.hero-command__chip {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  border: 1px solid rgba(110, 255, 234, 0.28);
  border-radius: var(--radius-pill);
  background:
    linear-gradient(90deg, rgba(25, 247, 210, 0.1), rgba(123, 44, 255, 0.12)),
    rgba(9, 7, 25, 0.56);
  color: var(--color-cyan-strong);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.hero-kicker {
  gap: 9px;
  padding: 8px 13px;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-kicker__dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 14px rgba(25, 247, 210, 0.9);
}

.hero-kicker__text {
  color: inherit;
}

.hero-content__eyebrow {
  padding: 7px 12px;
  font-size: 0.84rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.hero-command__chip {
  padding: 7px 11px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.hero-command__chip:hover {
  color: var(--color-cyan-strong);
  border-color: rgba(110, 255, 234, 0.5);
}

.hero-card,
.hero-command,
.launch-strip__item {
  border: 1px solid var(--color-line);
  background:
    linear-gradient(135deg, rgba(25, 247, 210, 0.08), transparent 34%),
    linear-gradient(315deg, rgba(123, 44, 255, 0.14), transparent 44%),
    var(--color-surface);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.035),
    0 0 34px rgba(123, 44, 255, 0.12);
  backdrop-filter: blur(16px);
}

.hero-card__label,
.hero-command__label,
.launch-strip__label {
  color: var(--color-text-soft);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-card__value,
.hero-command__title,
.launch-strip__value {
  color: var(--color-text-strong);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
}

.hero-card__text,
.hero-command__copy,
.launch-strip__desc,
.mobile-menu__note {
  color: var(--color-text-muted);
}

.hero-content__title {
  color: var(--color-text-strong);
  text-shadow:
    0 0 22px rgba(123, 44, 255, 0.42),
    0 0 42px rgba(25, 247, 210, 0.12);
}

.hero-content__lead {
  color: var(--color-text-muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.85;
}

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

.hero-media__caption-label {
  color: var(--color-cyan-strong);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.hero-media__caption-text {
  color: var(--color-text-strong);
  font-weight: 800;
}

.launch-strip__list {
  list-style: none;
}

.mobile-menu__link-index {
  color: var(--color-cyan);
  font-family: var(--font-display);
}

.mobile-menu__link-text {
  color: var(--color-text-strong);
  font-weight: 800;
}

.mobile-menu__link:hover .mobile-menu__link-text {
  color: var(--color-cyan-strong);
}

.mobile-menu__note {
  font-size: 0.88rem;
  line-height: 1.6;
}

.u-container {
  width: min(100% - (var(--container-padding) * 2), var(--container));
  max-width: var(--container);
  min-width: 0;
  margin-inline: auto;
}

.u-section {
  padding-block: var(--section-space);
}

.u-section-compact {
  padding-block: var(--section-space-compact);
}

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

.u-soft {
  color: var(--color-text-soft);
}

.u-cyan {
  color: var(--color-cyan-strong);
}

.u-magenta {
  color: var(--color-magenta-strong);
}

.u-violet {
  color: var(--color-violet-strong);
}

.u-nowrap {
  white-space: nowrap;
}

.u-balance {
  text-wrap: balance;
}

.u-center {
  text-align: center;
}

.u-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}