:root {
  --ink-900: #071320;
  --ink-800: #0C1D2E;
  --ink-700: #16324A;
  --cyan-400: #3DF2D0;
  --orange-400: #FF8A3D;
  --rule-100: #EFEAE1;
  --rule-ink: #1B2430;
  --slate-400: #9FB3BF;
  --teal-600: #1FA88F;
  --coral-500: #E4573D;
  --paper-050: #F2F5F4;
  --paper-200: #D7E3E8;
  --max-width: 1280px;
  --radius-xl: 28px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --font-display: "Barlow Condensed", "DIN Alternate", "HarmonyOS Sans SC", "Noto Sans SC", "PingFang SC", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    linear-gradient(rgba(61, 242, 208, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 242, 208, .025) 1px, transparent 1px),
    radial-gradient(circle at 75% 8%, rgba(255, 138, 61, .08), transparent 34rem),
    radial-gradient(circle at 12% 18%, rgba(61, 242, 208, .06), transparent 30rem);
  background-size: 24px 24px, 24px 24px, auto, auto;
  background-attachment: fixed;
  color: var(--paper-050);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

::selection {
  background: var(--cyan-400);
  color: var(--ink-900);
}

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

img {
  height: auto;
}

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

button {
  color: inherit;
}

a {
  color: var(--cyan-400);
  text-decoration-thickness: .08em;
  text-underline-offset: .18em;
}

a:hover {
  color: var(--orange-400);
}

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--paper-050);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.375rem, 6vw, 3.5rem);
  line-height: 1.03;
  letter-spacing: -.035em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.12;
}

h3 {
  font-size: clamp(1.25rem, 2.6vw, 1.5rem);
  line-height: 1.25;
}

h4 {
  font-size: 1.125rem;
  line-height: 1.3;
}

strong {
  color: var(--paper-050);
  font-weight: 700;
}

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  border: 1px solid var(--cyan-400);
  border-radius: var(--radius-pill);
  background: var(--ink-900);
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform .2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  isolation: isolate;
  background: rgba(7, 19, 32, .94);
  border-bottom: 1px solid rgba(159, 179, 191, .16);
  backdrop-filter: blur(18px);
}

.header-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  z-index: 2;
  height: 2px;
  overflow: hidden;
  background: rgba(159, 179, 191, .12);
  pointer-events: none;
}

.header-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-400), var(--orange-400));
  transform: scaleX(var(--scroll, 0));
  transform-origin: left center;
  transition: transform .12s linear;
}

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: var(--max-width);
  min-height: var(--header-height);
  margin-inline: auto;
  padding: 12px clamp(20px, 4vw, 48px);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  color: var(--paper-050);
  text-decoration: none;
}

.brand-lockup:hover {
  color: var(--paper-050);
}

.brand-lockup__code {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 6px;
  border: 1px solid rgba(61, 242, 208, .52);
  border-radius: 7px;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1;
  letter-spacing: .12em;
  transform: skewX(-7deg);
}

.brand-lockup__name {
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 2vw, 1.65rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.035em;
  white-space: nowrap;
}

.load-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 16px;
  border-left: 1px solid rgba(159, 179, 191, .18);
  color: var(--slate-400);
}

.load-status__orb {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan-400), var(--orange-400));
  box-shadow: 0 0 0 4px rgba(61, 242, 208, .08);
  animation: load-pulse 2.2s var(--ease) infinite;
}

.load-status__text {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: .04em;
  white-space: nowrap;
}

.load-status__track {
  display: block;
  width: 64px;
  height: 4px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: rgba(159, 179, 191, .14);
}

.load-status__fill {
  display: block;
  width: 62%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan-400), var(--orange-400));
  animation: load-sweep 2.8s var(--ease) infinite alternate;
}

@keyframes load-pulse {
  0%, 100% { opacity: .72; transform: scale(.9); }
  50% { opacity: 1; transform: scale(1.12); }
}

@keyframes load-sweep {
  from { width: 34%; }
  to { width: 86%; }
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item {
  margin: 0;
}

.nav-link {
  position: relative;
  display: block;
  padding: 9px 11px;
  border-radius: var(--radius-pill);
  color: var(--slate-400);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), background-color .2s var(--ease), transform .2s var(--ease);
}

.nav-link:hover {
  color: var(--paper-050);
  background: rgba(159, 179, 191, .08);
  transform: translateY(-1px);
}

.nav-link[aria-current="page"] {
  color: var(--cyan-400);
  background: rgba(61, 242, 208, .08);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 4px;
  left: 10px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-400), transparent);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 40px;
  margin-left: auto;
  padding: 8px 12px;
  border: 1px solid rgba(159, 179, 191, .26);
  border-radius: var(--radius-pill);
  background: rgba(12, 29, 46, .8);
  color: var(--paper-050);
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: rgba(61, 242, 208, .6);
}

.nav-toggle__bars {
  display: inline-grid;
  gap: 5px;
  width: 18px;
}

.nav-toggle__bars span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--cyan-400);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
}

.site-header[data-open="true"] .nav-toggle__bars span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bars span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.header-rail {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 4px;
}

.rail-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.rail-pill:hover {
  transform: translateY(-2px);
}

.rail-pill--orange {
  background: var(--orange-400);
  color: var(--ink-900);
  box-shadow: 0 10px 26px rgba(255, 138, 61, .17);
}

.rail-pill--orange:hover {
  color: var(--ink-900);
  box-shadow: 0 14px 32px rgba(255, 138, 61, .25);
}

.rail-pill--cyan {
  background: rgba(61, 242, 208, .04);
  border-color: rgba(61, 242, 208, .52);
  color: var(--cyan-400);
}

.rail-pill--cyan:hover,
.rail-pill--cyan[data-saved="true"] {
  background: rgba(61, 242, 208, .12);
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

.rail-coordinate {
  color: var(--slate-400);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.3;
  letter-spacing: .05em;
  white-space: nowrap;
}

.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(64px, 10vw, 140px);
  border-top: 1px solid rgba(159, 179, 191, .16);
  background:
    linear-gradient(rgba(61, 242, 208, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 242, 208, .025) 1px, transparent 1px),
    linear-gradient(180deg, var(--ink-800), var(--ink-900));
  background-size: 24px 24px, 24px 24px, auto;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -12%;
  width: 36rem;
  height: 36rem;
  border: 1px solid rgba(61, 242, 208, .1);
  border-radius: 50%;
  pointer-events: none;
}

.footer-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: clamp(46px, 7vw, 76px) clamp(20px, 4vw, 48px) 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(210px, .78fr) minmax(0, 2.2fr);
  gap: clamp(32px, 5vw, 68px);
  align-items: start;
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border: 1px solid rgba(61, 242, 208, .5);
  border-radius: 18px;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .08em;
  transform: rotate(-4deg);
}

.footer-brand__name {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
}

.footer-brand__note {
  max-width: 18em;
  margin: 4px 0 0;
  color: var(--paper-200);
  font-size: 15px;
  line-height: 1.7;
}

.footer-sync {
  max-width: 20em;
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange-400);
  color: var(--slate-400);
  font-size: 12px;
  line-height: 1.7;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 38px);
}

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

.footer-col__title {
  margin: 0 0 16px;
  color: var(--paper-050);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.footer-col__title::before {
  content: "§";
  margin-right: 7px;
  color: var(--orange-400);
  font-family: var(--font-mono);
  font-size: 11px;
}

.footer-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-link {
  display: inline-block;
  color: var(--slate-400);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.footer-link:hover {
  color: var(--cyan-400);
  transform: translateX(2px);
}

.footer-link--strong {
  color: var(--orange-400);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
}

.footer-contact {
  display: grid;
  gap: 9px;
}

.footer-contact__row {
  display: grid;
  gap: 2px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(159, 179, 191, .12);
}

.footer-contact__label {
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.2;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.footer-contact__value {
  overflow-wrap: anywhere;
  color: var(--paper-200);
  font-size: 13px;
  line-height: 1.55;
}

.footer-contact__note {
  margin: 2px 0 3px;
  color: var(--slate-400);
  font-size: 12px;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: 20px;
  border-top: 1px solid rgba(159, 179, 191, .16);
}

.footer-copyright,
.footer-icp {
  margin: 0;
  color: var(--slate-400);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .03em;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-legal .footer-link {
  font-family: var(--font-mono);
  font-size: 11px;
}

.content-shell {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

.breadcrumb {
  color: var(--slate-400);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .03em;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.breadcrumb__link {
  color: var(--slate-400);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--cyan-400);
}

.breadcrumb__sep {
  color: var(--ink-700);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--orange {
  background: var(--orange-400);
  color: var(--ink-900);
  box-shadow: 0 14px 34px rgba(255, 138, 61, .17);
}

.btn--orange:hover {
  color: var(--ink-900);
  box-shadow: 0 18px 40px rgba(255, 138, 61, .26);
}

.btn--cyan {
  background: rgba(61, 242, 208, .06);
  border-color: rgba(61, 242, 208, .6);
  color: var(--cyan-400);
}

.btn--cyan:hover {
  background: rgba(61, 242, 208, .12);
  color: var(--cyan-400);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(159, 179, 191, .28);
  color: var(--paper-050);
}

.btn--ghost:hover {
  border-color: rgba(61, 242, 208, .55);
  color: var(--cyan-400);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid rgba(159, 179, 191, .22);
  border-radius: var(--radius-pill);
  color: var(--slate-400);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: .04em;
  white-space: nowrap;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--cyan-400);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  display: block;
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-400), transparent);
}

.section-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.index-number {
  display: block;
  color: var(--orange-400);
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.06em;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}

.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: 1 / -1; }

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(159, 179, 191, .2);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 78% 28%, rgba(255, 138, 61, .18), transparent 38%),
    linear-gradient(135deg, rgba(61, 242, 208, .10), rgba(22, 50, 74, .34));
}

.media-frame::before {
  content: "MEDIA / 16:9";
  position: absolute;
  right: 14px;
  bottom: 12px;
  z-index: 1;
  color: rgba(242, 245, 244, .52);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1;
  letter-spacing: .08em;
}

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

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

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

.media-frame__caption {
  position: absolute;
  right: 14px;
  bottom: 12px;
  left: 14px;
  z-index: 2;
  margin: 0;
  color: var(--paper-050);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: .03em;
  text-shadow: 0 1px 12px rgba(7, 19, 32, .9);
}

.accordion {
  border-top: 1px solid rgba(159, 179, 191, .2);
}

.accordion__item {
  border-bottom: 1px solid rgba(159, 179, 191, .2);
}

.accordion__heading {
  margin: 0;
  font-family: var(--font-display);
  font-size: inherit;
  line-height: 1.2;
}

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 20px 0;
  border: 0;
  background: transparent;
  color: var(--paper-050);
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  text-align: left;
  cursor: pointer;
}

.accordion__trigger:hover {
  color: var(--cyan-400);
}

.accordion__icon {
  position: relative;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border: 1px solid rgba(61, 242, 208, .5);
  border-radius: 50%;
  transition: background-color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 1.5px;
  background: var(--cyan-400);
  transform: translate(-50%, -50%);
  transition: transform .22s var(--ease), background-color .22s var(--ease);
}

.accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion__item[data-open="true"] .accordion__icon {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
  transform: rotate(180deg);
}

.accordion__item[data-open="true"] .accordion__icon::before,
.accordion__item[data-open="true"] .accordion__icon::after {
  background: var(--ink-900);
}

.accordion__item[data-open="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows .22s var(--ease), opacity .22s var(--ease);
}

.accordion__item[data-open="true"] .accordion__panel {
  grid-template-rows: 1fr;
  opacity: 1;
}

.accordion__inner {
  min-height: 0;
  overflow: hidden;
  padding-right: clamp(0px, 4vw, 48px);
  color: var(--slate-400);
  font-size: 15px;
  line-height: 1.8;
}

.accordion__item[data-open="true"] .accordion__inner {
  padding-bottom: 20px;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (min-width: 1500px) {
  .header-shell {
    padding-right: 168px;
  }

  .header-rail {
    position: fixed;
    top: calc(var(--header-height) + 28px);
    right: 24px;
    z-index: 80;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 116px;
    margin: 0;
    padding: 10px;
    border: 1px solid rgba(159, 179, 191, .18);
    border-radius: var(--radius-lg);
    background: rgba(12, 29, 46, .86);
    box-shadow: 0 24px 60px rgba(0, 0, 0, .24);
    backdrop-filter: blur(16px);
  }

  .header-rail .rail-pill {
    width: 100%;
  }

  .rail-coordinate {
    padding-top: 2px;
    text-align: center;
  }
}

@media (max-width: 1499px) {
  .rail-coordinate {
    display: none;
  }
}

@media (max-width: 1120px) {
  body {
    padding-bottom: 76px;
  }

  .header-shell {
    gap: 14px;
    min-height: 70px;
    padding-block: 10px;
  }

  .load-status__track {
    display: none;
  }

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

  .primary-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    z-index: 4;
    display: none;
    margin: 0;
    padding: 12px clamp(20px, 4vw, 48px) 20px;
    border-bottom: 1px solid rgba(61, 242, 208, .2);
    background: rgba(7, 19, 32, .98);
    box-shadow: 0 24px 44px rgba(0, 0, 0, .28);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-size: 17px;
  }

  .nav-link[aria-current="page"]::after {
    right: 16px;
    bottom: 8px;
    left: 16px;
  }

  .header-rail {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 95;
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 10px;
    margin: 0;
    padding: 10px clamp(16px, 4vw, 26px) calc(10px + env(safe-area-inset-bottom));
    border-top: 1px solid rgba(159, 179, 191, .2);
    background: rgba(7, 19, 32, .97);
    box-shadow: 0 -18px 38px rgba(0, 0, 0, .2);
    backdrop-filter: blur(18px);
  }

  .header-rail .rail-pill {
    flex: 1 1 0;
    max-width: 230px;
  }

  .rail-coordinate {
    display: none;
  }
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-template-columns: auto 1fr;
    align-items: center;
    column-gap: 16px;
  }

  .footer-brand__mark {
    grid-row: span 2;
  }

  .footer-brand__note,
  .footer-sync {
    grid-column: 2;
  }

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

  .footer-col--contact {
    grid-column: 1 / -1;
  }

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

  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8,
  .span-12 {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .brand-lockup {
    gap: 7px;
  }

  .brand-lockup__code {
    font-size: 8px;
  }

  .brand-lockup__name {
    font-size: 1.32rem;
  }

  .load-status {
    padding-left: 10px;
  }

  .load-status__text {
    display: none;
  }

  .nav-toggle__label {
    display: none;
  }

  .footer-shell {
    padding-bottom: 24px;
  }

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

  .footer-col--contact {
    grid-column: auto;
  }

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

  .footer-legal {
    gap: 6px 16px;
  }

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

  .btn {
    width: 100%;
  }

  .accordion__inner {
    padding-right: 0;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  .load-status__orb,
  .load-status__fill {
    animation: none;
  }

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