:root {
  --ink-deep: #0B1B2B;
  --navy-mid: #0E2540;
  --ink-black: #071320;
  --amber: #F2A900;
  --cyan: #00E5C3;
  --violet: #3B1E5A;
  --mist: #E8EDF2;
  --gray: #93A3B4;
  --amber-soft: #FFC94D;
  --coral: #FF6B5E;
  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --page-max: 1440px;
  --content-max: 1180px;
  --gutter: clamp(18px, 4vw, 56px);
  --header-height: 78px;
  --radius-organic: 28px 14px 34px 18px;
  --radius-panel: 22px 10px 26px 12px;
  --shadow-panel: 0 28px 80px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(242, 169, 0, 0.16);
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
  background: var(--ink-deep);
}

body {
  margin: 0;
  min-height: 100vh;
  padding-top: var(--header-height);
  overflow-x: hidden;
  background:
    radial-gradient(circle at 82% 8%, rgba(59, 30, 90, 0.34), transparent 36%),
    radial-gradient(circle at 16% 42%, rgba(0, 229, 195, 0.06), transparent 30%),
    var(--ink-deep);
  color: var(--mist);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  border: 0;
  cursor: pointer;
}

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

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection {
  background: var(--amber);
  color: var(--ink-black);
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 1200;
  padding: 10px 14px;
  background: var(--amber);
  color: var(--ink-black);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  border-radius: 0 0 12px 12px;
  transition: top var(--transition);
}

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

.page-shell {
  width: min(var(--content-max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.page-shell--wide {
  width: min(var(--page-max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.section-band {
  position: relative;
  padding-block: clamp(44px, 7vw, 96px);
}

.section-band--violet {
  background:
    linear-gradient(90deg, rgba(59, 30, 90, 0.92), rgba(14, 37, 64, 0.34) 62%, rgba(11, 27, 43, 0.1)),
    var(--ink-deep);
}

.section-index {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.section-title {
  max-width: 14ch;
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.eyebrow {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lead {
  max-width: 52ch;
  color: var(--mist);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.7;
}

.prose {
  max-width: 42ch;
  color: rgba(232, 237, 242, 0.86);
}

.data-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 30px);
}

.grid-5-7 {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(24px, 4vw, 56px);
}

.grid-4-8 {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(24px, 4vw, 56px);
}

.card {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  background: linear-gradient(145deg, rgba(14, 37, 64, 0.92), rgba(11, 27, 43, 0.96));
  border: 1px solid rgba(147, 163, 180, 0.18);
  border-radius: var(--radius-organic);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.card:hover {
  border-color: var(--amber);
  background: linear-gradient(145deg, rgba(14, 37, 64, 0.98), rgba(59, 30, 90, 0.38), rgba(11, 27, 43, 0.98));
  box-shadow: 0 28px 78px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

.card--float {
  border-color: rgba(242, 169, 0, 0.32);
  box-shadow: var(--shadow-panel);
}

.panel {
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(14, 37, 64, 0.72);
  border: 1px solid rgba(242, 169, 0, 0.22);
  border-radius: var(--radius-panel);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.24);
}

.data-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  color: var(--cyan);
  background: rgba(0, 229, 195, 0.08);
  border: 1px solid rgba(0, 229, 195, 0.35);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 195, 0.12);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  color: var(--amber);
  border: 1px solid rgba(242, 169, 0, 0.4);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 999px 999px 999px 10px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--gold {
  color: var(--ink-black);
  background: var(--amber);
}

.btn--gold:hover {
  background: var(--amber-soft);
  box-shadow: 0 12px 30px rgba(242, 169, 0, 0.22);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--mist);
  background: transparent;
  border-color: rgba(232, 237, 242, 0.24);
}

.btn--ghost:hover {
  color: var(--amber);
  border-color: var(--amber);
}

.btn--small {
  min-height: 36px;
  padding: 8px 12px;
  font-size: 12px;
}

.btn--block {
  width: 100%;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 12px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gray);
}

.breadcrumbs a {
  color: var(--mist);
  transition: color var(--transition);
}

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

.media-frame {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(7, 19, 32, 0.98), rgba(14, 37, 64, 0.96) 58%, rgba(59, 30, 90, 0.9)),
    var(--ink-black);
  border: 1px solid rgba(147, 163, 180, 0.18);
  border-radius: var(--radius-organic);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 42%, rgba(7, 19, 32, 0.76));
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide {
  aspect-ratio: 16 / 9;
}

.media-frame--tall {
  aspect-ratio: 3 / 4;
}

.media-frame--square {
  aspect-ratio: 1 / 1;
}

.media-frame__caption {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  padding: 8px 10px;
  color: var(--mist);
  background: rgba(7, 19, 32, 0.72);
  border-left: 2px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 900;
  min-height: var(--header-height);
  color: var(--mist);
  background: linear-gradient(180deg, rgba(11, 27, 43, 0.97), rgba(11, 27, 43, 0.82));
  border-bottom: 1px solid rgba(242, 169, 0, 0.18);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: background var(--transition), border-color var(--transition);
}

.site-header.is-scrolled {
  background: rgba(7, 19, 32, 0.96);
  border-bottom-color: rgba(242, 169, 0, 0.3);
}

.scroll-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  z-index: 3;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 80ms linear;
}

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--page-max), calc(100% - var(--gutter) * 2));
  min-height: var(--header-height);
  margin-inline: auto;
  gap: 22px;
  transition: min-height var(--transition);
}

.site-header.is-scrolled .header-shell {
  min-height: 64px;
}

.header-left {
  display: flex;
  align-items: center;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 1px solid rgba(242, 169, 0, 0.55);
  border-radius: 54% 46% 58% 42%;
  background:
    radial-gradient(circle at 62% 38%, rgba(242, 169, 0, 0.95) 0 15%, transparent 16%),
    radial-gradient(circle at 38% 42%, rgba(242, 169, 0, 0.9) 0 11%, transparent 12%),
    conic-gradient(from 42deg, var(--violet), var(--ink-black), var(--navy-mid), var(--violet));
  box-shadow: 0 0 0 6px rgba(242, 169, 0, 0.05), 0 12px 30px rgba(0, 0, 0, 0.32);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(232, 237, 242, 0.12);
  border-radius: 50%;
}

.brand-mark__pupil {
  position: relative;
  z-index: 2;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 195, 0.12);
}

.brand-copy {
  display: grid;
  gap: 1px;
  min-width: 0;
}

.brand-name {
  display: block;
  overflow: hidden;
  color: var(--mist);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-tag {
  display: block;
  overflow: hidden;
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: opacity var(--transition);
}

.site-header.is-scrolled .brand-tag {
  opacity: 0.45;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  flex: 0 0 auto;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 10px;
  color: var(--mist);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 4px;
  left: 10px;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--mist);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--amber);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 10px 15px;
  color: var(--ink-black);
  background: var(--amber);
  border: 1px solid transparent;
  border-radius: 999px 999px 999px 9px;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.05em;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  background: var(--amber-soft);
  box-shadow: 0 12px 28px rgba(242, 169, 0, 0.2);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 9px 12px;
  color: var(--mist);
  background: rgba(14, 37, 64, 0.72);
  border: 1px solid rgba(242, 169, 0, 0.34);
  border-radius: 999px 999px 999px 8px;
  transition: border-color var(--transition), background var(--transition);
}

.nav-toggle:hover {
  border-color: var(--amber);
  background: rgba(14, 37, 64, 0.98);
}

.nav-toggle__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav-toggle__lines {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__lines span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--amber);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(1),
.site-header[data-open="true"] .nav-toggle__lines span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(2),
.site-header[data-open="true"] .nav-toggle__lines span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(3),
.site-header[data-open="true"] .nav-toggle__lines span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-footer {
  position: relative;
  overflow: hidden;
  color: var(--mist);
  background: var(--ink-black);
  border-top: 1px solid rgba(242, 169, 0, 0.24);
}

.footer-glow {
  position: absolute;
  top: -180px;
  right: -160px;
  width: 520px;
  height: 520px;
  pointer-events: none;
  background:
    radial-gradient(circle, rgba(242, 169, 0, 0.14), transparent 58%),
    radial-gradient(circle at 34% 62%, rgba(59, 30, 90, 0.34), transparent 62%);
}

.footer-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 2.1fr);
  gap: clamp(36px, 5vw, 78px);
  width: min(var(--page-max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  padding: clamp(56px, 7vw, 88px) 0 32px;
}

.footer-brand {
  min-width: 0;
}

.footer-brand__link {
  display: inline-block;
  color: var(--mist);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  letter-spacing: 0.04em;
}

.footer-brand__link:hover {
  color: var(--amber);
}

.footer-brand__line {
  max-width: 32ch;
  margin-top: 18px;
  color: var(--gray);
  font-size: 14px;
}

.footer-contact {
  margin-top: 24px;
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
}

.footer-contact span {
  color: var(--mist);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 34px);
}

.footer-col {
  min-width: 0;
}

.footer-col__title {
  margin-bottom: 18px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.footer-list {
  display: grid;
  gap: 10px;
}

.footer-link {
  position: relative;
  display: inline-block;
  color: var(--gray);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  left: 0;
  height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

.footer-link:hover {
  color: var(--mist);
}

.footer-link:hover::after {
  transform: scaleX(1);
}

.footer-static {
  color: var(--gray);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-top: clamp(44px, 6vw, 68px);
  padding-top: 22px;
  border-top: 1px solid rgba(147, 163, 180, 0.16);
}

.footer-note {
  max-width: 62ch;
  color: var(--gray);
  font-size: 13px;
}

.footer-legal {
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: right;
}

@media (max-width: 1120px) {
  .nav-link {
    padding-inline: 8px;
    font-size: 13px;
  }

  .primary-nav {
    gap: 18px;
  }

  .nav-cta {
    padding-inline: 13px;
    font-size: 13px;
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 68px;
  }

  .header-shell {
    gap: 14px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: var(--gutter);
    left: var(--gutter);
    display: grid;
    gap: 14px;
    padding: 18px;
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    background: rgba(7, 19, 32, 0.98);
    border: 1px solid rgba(242, 169, 0, 0.34);
    border-radius: var(--radius-panel);
    box-shadow: 0 32px 90px rgba(0, 0, 0, 0.52);
    transform: translateY(-12px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }

  .site-header[data-open="true"] .primary-nav {
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    display: block;
    padding: 13px 12px;
    border-bottom: 1px solid rgba(147, 163, 180, 0.14);
    font-size: 16px;
  }

  .nav-link::after {
    right: auto;
    bottom: 7px;
    left: 12px;
    width: 34px;
  }

  .nav-cta {
    justify-content: center;
    width: 100%;
    min-height: 44px;
  }

  .grid-5-7,
  .grid-4-8 {
    grid-template-columns: 1fr;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .brand-tag {
    display: none;
  }

  .brand-name {
    font-size: 16px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .section-title {
    max-width: 11ch;
    font-size: clamp(36px, 12vw, 54px);
  }

  .grid-12 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .footer-legal {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

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

  .scroll-progress {
    transition: none;
  }
}