:root {
  color-scheme: dark;
  --c-space: #060A13;
  --c-panel: #0D1524;
  --c-cyan: #53F3E4;
  --c-violet: #9C7CFF;
  --c-gold: #F2C46D;
  --c-paper: #E9F0F7;
  --c-steel: #8FA3B7;
  --c-green: #6EE7A8;
  --c-coral: #FF7A8A;
  --c-line: #24344A;
  --c-line-soft: rgba(36, 52, 74, 0.62);
  --c-cyan-soft: rgba(83, 243, 228, 0.12);
  --c-violet-soft: rgba(156, 124, 255, 0.12);
  --font-display: "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --container: 1280px;
  --gutter: clamp(18px, 4vw, 48px);
  --ease: cubic-bezier(0.22, 0.78, 0.2, 1);
  --shadow-glow: 0 0 0 1px rgba(83, 243, 228, 0.14), 0 18px 58px rgba(0, 0, 0, 0.42);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 144px;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--c-space);
  background-image:
    radial-gradient(circle at 14% 8%, rgba(83, 243, 228, 0.1), transparent 30rem),
    radial-gradient(circle at 88% 0%, rgba(156, 124, 255, 0.11), transparent 34rem),
    linear-gradient(rgba(36, 52, 74, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 52, 74, 0.16) 1px, transparent 1px);
  background-size: auto, auto, 52px 52px, 52px 52px;
  background-attachment: fixed;
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body,
button,
input,
textarea,
select {
  font-family: var(--font-body);
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
dl,
figure,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--c-paper);
}

p {
  margin-bottom: 1em;
}

a {
  color: var(--c-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

button {
  color: inherit;
}

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

img {
  height: auto;
}

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

::selection {
  background: var(--c-cyan);
  color: var(--c-space);
}

:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 4px;
  box-shadow: 0 0 0 4px rgba(83, 243, 228, 0.16);
}

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

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--c-gold);
  color: var(--c-space);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline-color: var(--c-paper);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  isolation: isolate;
  background: linear-gradient(180deg, rgba(6, 10, 19, 0.98), rgba(13, 21, 36, 0.94));
  border-bottom: 1px solid var(--c-line);
  backdrop-filter: blur(16px);
  transition: box-shadow 0.25s var(--ease);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan), var(--c-violet), transparent);
  opacity: 0.8;
  pointer-events: none;
}

.site-header[data-scrolled="true"] {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.42);
}

.header-utility {
  position: relative;
  border-bottom: 1px solid var(--c-line-soft);
}

.header-utility__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
  min-height: 76px;
  padding-block: 12px;
  transition: min-height 0.25s var(--ease);
}

.site-header[data-scrolled="true"] .header-utility__inner {
  min-height: 64px;
}

.brand-lockup {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  color: var(--c-paper);
  text-decoration: none;
}

.brand-lockup:hover {
  color: var(--c-paper);
}

.brand-lockup__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(83, 243, 228, 0.5);
  background: linear-gradient(135deg, rgba(83, 243, 228, 0.18), rgba(156, 124, 255, 0.1));
  color: var(--c-cyan);
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.brand-lockup:hover .brand-lockup__mark {
  border-color: var(--c-gold);
  background: linear-gradient(135deg, rgba(242, 196, 109, 0.16), rgba(83, 243, 228, 0.12));
  color: var(--c-gold);
}

.brand-lockup__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-lockup__name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.08em;
}

.brand-lockup__code {
  color: var(--c-steel);
  font-size: 0.58rem;
  line-height: 1.3;
  letter-spacing: 0.14em;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 7px 12px;
  border-right: 1px solid var(--c-line);
  border-left: 1px solid var(--c-line);
  color: var(--c-steel);
  font-size: 0.74rem;
  line-height: 1.4;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 0 4px rgba(110, 231, 168, 0.1), 0 0 14px rgba(110, 231, 168, 0.55);
}

.header-status__label {
  color: var(--c-steel);
}

.header-status__value {
  color: var(--c-paper);
  font-size: 0.68rem;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(83, 243, 228, 0.55);
  background: rgba(83, 243, 228, 0.06);
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.header-cta:hover {
  border-color: var(--c-violet);
  background: rgba(156, 124, 255, 0.16);
  color: var(--c-paper);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--c-line);
  background: rgba(13, 21, 36, 0.72);
  color: var(--c-paper);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.nav-toggle__box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__line {
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
}

.site-header[data-open="true"] .nav-toggle {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(83, 243, 228, 0.08);
}

.site-header[data-open="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.site-header[data-open="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.header-nav-wrap {
  position: relative;
  background: linear-gradient(90deg, rgba(83, 243, 228, 0.025), transparent 22%, transparent 78%, rgba(156, 124, 255, 0.035));
}

.header-nav-wrap__inner {
  display: flex;
  align-items: stretch;
  min-height: 54px;
}

.site-nav {
  display: flex;
  align-items: center;
  width: 100%;
  gap: clamp(14px, 2.5vw, 40px);
}

.site-nav__caption {
  flex: 0 0 auto;
  padding-right: 16px;
  border-right: 1px solid var(--c-line);
  color: var(--c-steel);
  font-size: 0.56rem;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

.site-nav__list {
  display: flex;
  flex: 1 1 auto;
  align-items: stretch;
  width: 100%;
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-nav__list li {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav__list li + li {
  border-left: 1px solid rgba(36, 52, 74, 0.56);
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 16px clamp(7px, 1.4vw, 18px);
  color: var(--c-steel);
  font-size: 0.86rem;
  line-height: 1.35;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 8px;
  left: 12px;
  height: 1px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.24s var(--ease);
}

.site-nav__link:hover {
  background: rgba(83, 243, 228, 0.055);
  color: var(--c-paper);
}

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

.site-nav__index {
  color: var(--c-cyan);
  font-size: 0.6rem;
  opacity: 0.72;
}

.site-nav__link[aria-current="page"] {
  background: linear-gradient(180deg, rgba(83, 243, 228, 0.13), rgba(156, 124, 255, 0.06));
  color: var(--c-paper);
}

.site-nav__link[aria-current="page"] .site-nav__index {
  color: var(--c-gold);
  opacity: 1;
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.scroll-meter {
  position: relative;
  height: 2px;
  overflow: hidden;
  background: rgba(36, 52, 74, 0.65);
}

.scroll-meter__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet), var(--c-gold));
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}

.site-footer {
  position: relative;
  isolation: isolate;
  margin-top: clamp(64px, 10vw, 136px);
  overflow: hidden;
  border-top: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 8% 0%, rgba(83, 243, 228, 0.08), transparent 26rem),
    radial-gradient(circle at 94% 8%, rgba(156, 124, 255, 0.1), transparent 28rem),
    linear-gradient(180deg, #09111d, #060a13 72%);
  padding-top: clamp(44px, 7vw, 82px);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan), var(--c-violet), transparent);
  opacity: 0.68;
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(36, 52, 74, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 52, 74, 0.16) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 78%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(300px, 1.55fr) minmax(250px, 0.95fr);
  gap: clamp(32px, 5vw, 80px);
  padding-bottom: clamp(38px, 5vw, 62px);
}

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

.footer-brand__link {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  color: var(--c-paper);
  text-decoration: none;
}

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

.footer-brand__name {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.08em;
}

.footer-brand__code {
  color: var(--c-gold);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
}

.footer-brand__note {
  max-width: 30ch;
  margin: 16px 0 0;
  color: var(--c-steel);
  font-size: 0.83rem;
  line-height: 1.75;
}

.footer-brand__note + .footer-brand__note {
  margin-top: 4px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 52px);
  min-width: 0;
}

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

.footer-group__title {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-gold);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.footer-list {
  display: grid;
  gap: 9px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-list__link {
  display: inline-flex;
  align-items: center;
  min-height: 1.8em;
  color: var(--c-steel);
  font-size: 0.86rem;
  text-decoration: none;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.footer-list__link:hover {
  color: var(--c-paper);
  transform: translateX(3px);
}

.footer-contact {
  min-width: 0;
  padding-left: clamp(20px, 3vw, 42px);
  border-left: 1px solid var(--c-line);
}

.footer-contact__title {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-cyan);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.footer-contact__line {
  margin: 0;
  padding: 9px 0;
  border-bottom: 1px solid rgba(36, 52, 74, 0.46);
}

.footer-contact__label {
  display: block;
  margin-bottom: 2px;
  color: var(--c-steel);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
}

.footer-contact__mono {
  display: block;
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.55;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.footer-contact__note {
  margin: 16px 0 0;
  color: var(--c-steel);
  font-size: 0.76rem;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--c-line);
  background: rgba(6, 10, 19, 0.62);
}

.footer-bottom__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 32px;
  padding-block: 18px;
}

.footer-legal {
  margin: 0;
  color: var(--c-steel);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
}

.footer-meta {
  margin: 0;
}

.footer-meta__hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--c-steel);
  font-size: 0.76rem;
}

.footer-meta__link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(83, 243, 228, 0.45);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-meta__link:hover {
  color: var(--c-gold);
  border-color: var(--c-gold);
}

.site-main {
  display: block;
  min-height: 60vh;
}

.page-section {
  padding-block: clamp(48px, 7vw, 96px);
}

.page-section + .page-section {
  border-top: 1px solid rgba(36, 52, 74, 0.42);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(5rem, 8rem) minmax(0, 1fr);
  gap: clamp(18px, 3vw, 42px);
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 42px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--c-line);
}

.section-head__index {
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.04em;
}

.section-head__note {
  max-width: 68ch;
  margin: 12px 0 0;
  color: var(--c-steel);
  font-size: 0.92rem;
}

.display-title {
  max-width: 15ch;
  margin: 0;
  color: var(--c-paper);
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 5.6rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: 0.04em;
  text-wrap: balance;
}

.lede {
  max-width: 72ch;
  color: var(--c-steel);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  line-height: 1.82;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
}

.panel {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid var(--c-line);
  background: linear-gradient(145deg, rgba(13, 21, 36, 0.97), rgba(6, 10, 19, 0.9));
  box-shadow: var(--shadow-glow);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: 72px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-cyan));
  pointer-events: none;
}

.paper-card {
  position: relative;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(233, 240, 247, 0.28);
  background: var(--c-paper);
  color: #0a111d;
  box-shadow: 6px 6px 0 rgba(36, 52, 74, 0.56);
}

.paper-card a {
  color: #0a111d;
  text-decoration-color: currentColor;
}

.tag {
  --tag-color: var(--c-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
  padding: 2px 8px;
  border: 1px solid currentColor;
  background: rgba(83, 243, 228, 0.055);
  color: var(--tag-color);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  line-height: 1.4;
  letter-spacing: 0.07em;
  white-space: nowrap;
}

.tag--cyan {
  --tag-color: var(--c-cyan);
}

.tag--violet {
  --tag-color: var(--c-violet);
}

.tag--gold {
  --tag-color: var(--c-gold);
}

.tag--green {
  --tag-color: var(--c-green);
}

.tag--coral {
  --tag-color: var(--c-coral);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--c-line);
  background: transparent;
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.4;
  letter-spacing: 0.07em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  transform: translateY(-1px);
}

.btn--primary {
  border-color: rgba(83, 243, 228, 0.8);
  background: var(--c-cyan);
  color: var(--c-space);
  box-shadow: 0 0 24px rgba(83, 243, 228, 0.18);
}

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

.btn--ghost {
  border-color: rgba(156, 124, 255, 0.7);
  background: rgba(156, 124, 255, 0.08);
  color: var(--c-paper);
}

.btn--ghost:hover {
  background: var(--c-violet);
  color: var(--c-space);
}

.btn--small {
  min-height: 36px;
  padding-inline: 12px;
  font-size: 0.68rem;
}

.breadcrumbs {
  padding-top: 18px;
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--c-steel);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.04em;
}

.breadcrumbs__link {
  color: var(--c-steel);
  text-decoration: none;
}

.breadcrumbs__link:hover {
  color: var(--c-cyan);
}

.breadcrumbs__sep {
  color: var(--c-line);
}

.breadcrumbs__current {
  color: var(--c-paper);
}

.index-rail {
  border-top: 1px solid var(--c-line);
}

.index-rail__item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(36, 52, 74, 0.56);
}

.index-rail__num {
  padding-top: 0.28em;
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.index-rail__label {
  color: var(--c-paper);
  font-weight: 600;
  line-height: 1.45;
}

.index-rail__meta {
  margin: 4px 0 0;
  color: var(--c-steel);
  font-size: 0.82rem;
  line-height: 1.62;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 32px);
}

.grid-asymmetric {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.6fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 26% 18%, rgba(83, 243, 228, 0.16), transparent 48%),
    radial-gradient(circle at 82% 76%, rgba(156, 124, 255, 0.14), transparent 52%),
    linear-gradient(135deg, rgba(13, 21, 36, 0.96), rgba(6, 10, 19, 0.99));
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  z-index: 1;
  border: 1px solid rgba(83, 243, 228, 0.14);
  pointer-events: none;
}

.media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

.media-frame__caption {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 2;
  max-width: calc(100% - 24px);
  padding: 5px 8px;
  border: 1px solid var(--c-line);
  background: rgba(6, 10, 19, 0.78);
  color: var(--c-steel);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  line-height: 1.4;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

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

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

.media-frame--portrait {
  aspect-ratio: 4 / 5;
}

.media-frame--glow {
  box-shadow: 0 0 0 1px rgba(83, 243, 228, 0.12), 0 26px 80px rgba(0, 0, 0, 0.46);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

@media (max-width: 1180px) {
  .header-status {
    display: none;
  }

  .site-nav__caption {
    display: none;
  }

  .site-nav__link {
    justify-content: center;
  }
}

@media (max-width: 980px) {
  html {
    scroll-padding-top: 112px;
  }

  .header-utility__inner {
    min-height: 70px;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-cta {
    margin-left: auto;
  }

  .header-nav-wrap {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
    background: rgba(6, 10, 19, 0.985);
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.58);
  }

  .site-header[data-open="true"] .header-nav-wrap {
    display: block;
  }

  .header-nav-wrap__inner {
    display: block;
    width: min(calc(100% - (var(--gutter) * 2)), var(--container));
    padding: 0;
  }

  .site-nav {
    display: block;
    padding: 18px 0 24px;
  }

  .site-nav__caption {
    display: block;
    padding: 0 0 12px;
    border-right: 0;
  }

  .site-nav__list {
    flex-direction: column;
  }

  .site-nav__list li {
    flex: initial;
    border-top: 1px solid rgba(36, 52, 74, 0.62);
  }

  .site-nav__list li:last-child {
    border-bottom: 1px solid rgba(36, 52, 74, 0.62);
  }

  .site-nav__list li + li {
    border-left: 0;
  }

  .site-nav__link {
    justify-content: flex-start;
    width: 100%;
    padding: 16px 8px;
    border-left: 2px solid transparent;
    font-size: 1rem;
  }

  .site-nav__link::after {
    right: auto;
    bottom: 8px;
    left: 8px;
    width: 42px;
  }

  .site-nav__link[aria-current="page"] {
    border-left-color: var(--c-cyan);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-contact {
    grid-column: 1 / -1;
    padding-top: 26px;
    padding-left: 0;
    border-top: 1px solid var(--c-line);
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .grid-2,
  .grid-3,
  .grid-asymmetric {
    grid-template-columns: 1fr;
  }

  .display-title {
    max-width: 12ch;
  }
}

@media (max-width: 620px) {
  .header-utility__inner {
    gap: 12px;
  }

  .brand-lockup__mark {
    width: 36px;
    height: 36px;
    font-size: 1.05rem;
  }

  .brand-lockup__code {
    display: none;
  }

  .brand-lockup__name {
    font-size: 0.92rem;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    margin-left: auto;
  }

  .footer-nav {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-meta__hint {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .paper-card {
    box-shadow: 4px 4px 0 rgba(36, 52, 74, 0.56);
  }
}

@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;
    scroll-behavior: auto !important;
  }

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

  .scroll-meter__bar {
    transition: none !important;
  }
}