:root {
  --color-space: #061426;
  --color-rail: #0B2A4A;
  --color-panel: #10365C;
  --color-cyan: #22D3EE;
  --color-cyan-soft: #7DEBFA;
  --color-orange: #F97316;
  --color-green: #34D399;
  --color-rose: #FB7185;
  --color-star: #EAF8FF;
  --color-mist: #A9C4D8;
  --color-line: #1E4A6D;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --container: 1440px;
  --container-text: 1180px;
  --container-narrow: 780px;
  --radius-sm: 0.55rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.25rem;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow-panel: 0 24px 80px rgba(0, 0, 0, 0.34);
  --shadow-cyan: 0 0 30px rgba(34, 211, 238, 0.2);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--color-star);
  background:
    radial-gradient(ellipse at 18% 5%, rgba(34, 211, 238, 0.13), transparent 30rem),
    radial-gradient(ellipse at 88% 0%, rgba(249, 115, 22, 0.08), transparent 24rem),
    radial-gradient(ellipse at 50% 100%, rgba(52, 211, 153, 0.05), transparent 28rem),
    linear-gradient(135deg, #061426 0%, #071b30 48%, #061426 100%);
  background-attachment: fixed;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.3;
  background-image:
    linear-gradient(rgba(30, 74, 109, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 74, 109, 0.24) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 84%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 84%);
}

.site-header,
.site-footer,
#main-content {
  position: relative;
  z-index: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: 0.06em;
  color: var(--color-star);
}

p {
  margin: 0;
}

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

figure {
  margin: 0;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-cyan-soft);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

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

button {
  cursor: pointer;
}

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

:where(a, button, input, select, textarea, summary):focus-visible {
  outline: 2px solid var(--color-cyan-soft);
  outline-offset: 4px;
}

#main-content {
  display: block;
  outline: none;
}

.skip-link {
  position: fixed;
  top: -6rem;
  left: 1rem;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-cyan);
  border-radius: 999px;
  color: var(--color-space);
  background: var(--color-cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow-cyan);
  transition: top 180ms var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  width: 100%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-cyan-soft) 55%, var(--color-orange));
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.55);
  transform: scaleX(0);
  transform-origin: left center;
}

.signal-dot {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 0.52rem;
  height: 0.52rem;
  border-radius: 50%;
  color: var(--color-cyan);
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.signal-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid currentColor;
  border-radius: inherit;
  opacity: 0.55;
  animation: signalPulse 2.4s ease-out infinite;
}

.signal-dot--cyan {
  color: var(--color-cyan);
}

.signal-dot--green {
  color: var(--color-green);
}

.signal-dot--orange {
  color: var(--color-orange);
}

.signal-dot--rose {
  color: var(--color-rose);
}

@keyframes signalPulse {
  0% {
    opacity: 0.55;
    transform: scale(0.65);
  }
  70% {
    opacity: 0;
    transform: scale(1.55);
  }
  100% {
    opacity: 0;
    transform: scale(1.55);
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid rgba(30, 74, 109, 0.72);
  background: linear-gradient(180deg, rgba(6, 20, 38, 0.98), rgba(6, 20, 38, 0.88));
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: background-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.site-header[data-scrolled] {
  background: rgba(6, 20, 38, 0.98);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.36);
}

.auth-strip {
  border-bottom: 1px solid rgba(30, 74, 109, 0.62);
  background:
    linear-gradient(90deg, rgba(11, 42, 74, 0.86), rgba(16, 54, 92, 0.44) 45%, rgba(11, 42, 74, 0.86));
  color: var(--color-mist);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.auth-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem 1.25rem;
  width: min(100% - 2rem, var(--container));
  min-height: 2.15rem;
  margin: 0 auto;
  padding: 0.35rem 0;
}

.auth-status,
.auth-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.auth-status {
  color: var(--color-star);
}

.auth-ver {
  padding: 0.08rem 0.5rem;
  border: 1px solid rgba(34, 211, 238, 0.42);
  border-radius: 999px;
  color: var(--color-cyan-soft);
  background: rgba(34, 211, 238, 0.08);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
}

.auth-live {
  color: rgba(52, 211, 153, 0.95);
}

.auth-icp {
  padding-left: 0.8rem;
  border-left: 1px solid var(--color-line);
  color: rgba(169, 196, 216, 0.8);
}

.header-deck {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  width: min(100% - 2rem, var(--container));
  min-height: 5.2rem;
  margin: 0 auto;
  padding: 0.85rem 0;
}

.header-deck::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.42), transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 0.8rem;
  margin-right: auto;
  color: var(--color-star);
}

.brand:hover .brand-mark {
  border-color: var(--color-cyan-soft);
  box-shadow: inset 0 0 22px rgba(34, 211, 238, 0.18), 0 0 30px rgba(34, 211, 238, 0.24);
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.52);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(125, 235, 250, 0.32), rgba(34, 211, 238, 0.08) 45%, transparent 70%);
  box-shadow: inset 0 0 20px rgba(34, 211, 238, 0.12), 0 0 24px rgba(34, 211, 238, 0.1);
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px dashed rgba(125, 235, 250, 0.45);
  border-radius: 50%;
  transform: rotate(-20deg);
}

.brand-ring {
  position: absolute;
  inset: 11px 2px;
  border: 1px solid rgba(249, 115, 22, 0.55);
  border-radius: 50%;
  transform: rotate(35deg);
}

.brand-core {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: var(--color-cyan-soft);
  box-shadow: 0 0 14px var(--color-cyan);
}

.brand-type {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.2vw, 1.3rem);
  font-weight: 500;
  letter-spacing: 0.11em;
  white-space: nowrap;
}

.brand-sub {
  color: var(--color-cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.header-utility {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--color-mist);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.header-readout {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  padding: 0.32rem 0.6rem;
  border: 1px solid rgba(30, 74, 109, 0.9);
  border-radius: 999px;
  background: rgba(11, 42, 74, 0.58);
}

.header-readout .signal-dot {
  width: 0.4rem;
  height: 0.4rem;
}

.header-coord {
  color: rgba(169, 196, 216, 0.62);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  min-height: 2.55rem;
  padding: 0.5rem 0.78rem;
  border: 1px solid rgba(30, 74, 109, 0.95);
  border-radius: 999px;
  color: var(--color-star);
  background: rgba(11, 42, 74, 0.72);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.nav-toggle:hover {
  border-color: rgba(34, 211, 238, 0.75);
  background: rgba(16, 54, 92, 0.86);
}

.nav-toggle-box {
  position: relative;
  display: block;
  width: 1.15rem;
  height: 0.85rem;
}

.nav-toggle-box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  border-radius: 999px;
  background: var(--color-cyan-soft);
  transition: top 200ms var(--ease), bottom 200ms var(--ease), transform 200ms var(--ease);
}

.nav-toggle-box span:first-child {
  top: 2px;
}

.nav-toggle-box span:last-child {
  bottom: 2px;
}

.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
}

.site-nav {
  position: relative;
  margin-left: 0.2rem;
  padding: 0.28rem;
  border: 1px solid rgba(34, 211, 238, 0.22);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(16, 54, 92, 0.68), rgba(11, 42, 74, 0.5));
  box-shadow: inset 0 1px 0 rgba(234, 248, 255, 0.04), 0 12px 36px rgba(0, 0, 0, 0.2);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.12rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.5rem 0.82rem;
  border-radius: 999px;
  color: var(--color-mist);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-star);
  background: rgba(34, 211, 238, 0.09);
}

.nav-link[aria-current="page"] {
  color: #04111e;
  background: linear-gradient(135deg, var(--color-cyan-soft), var(--color-cyan));
  box-shadow: 0 0 22px rgba(34, 211, 238, 0.3);
}

.nav-orbit {
  display: none;
}

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

@media (max-width: 980px) {
  .header-deck {
    min-height: 4.7rem;
  }

  .header-utility {
    display: none;
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: 0;
    z-index: 70;
    margin: 0;
    padding: 0.65rem;
    border-radius: var(--radius-lg);
    background:
      radial-gradient(circle at 12% 0%, rgba(34, 211, 238, 0.12), transparent 14rem),
      rgba(6, 20, 38, 0.98);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 200ms var(--ease), transform 200ms var(--ease), visibility 200ms var(--ease);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    min-height: 2.85rem;
    padding: 0.72rem 0.95rem;
    border-radius: 0.72rem;
    font-size: 0.94rem;
  }

  .nav-link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--color-orange), 0 0 22px rgba(34, 211, 238, 0.18);
  }

  .nav-orbit {
    display: block;
    position: relative;
    height: 2.2rem;
    margin-top: 0.6rem;
    overflow: hidden;
    border-top: 1px solid rgba(30, 74, 109, 0.8);
  }

  .nav-orbit::before,
  .nav-orbit::after {
    content: "";
    position: absolute;
    top: 1.1rem;
    left: 50%;
    width: 14rem;
    height: 4rem;
    border: 1px solid rgba(34, 211, 238, 0.18);
    border-radius: 50%;
    transform: translateX(-50%) rotate(-5deg);
  }

  .nav-orbit::after {
    width: 8rem;
    border-color: rgba(249, 115, 22, 0.22);
    transform: translateX(-50%) rotate(8deg);
  }

  .nav-orbit span {
    position: absolute;
    top: 1.05rem;
    left: 50%;
    width: 0.32rem;
    height: 0.32rem;
    border-radius: 50%;
    background: var(--color-cyan-soft);
    box-shadow: 0 0 12px var(--color-cyan);
    transform: translateX(-50%);
  }

  .site-header[data-open] .nav-toggle-box span:first-child {
    top: 0.38rem;
    transform: rotate(45deg);
  }

  .site-header[data-open] .nav-toggle-box span:last-child {
    bottom: 0.38rem;
    transform: rotate(-45deg);
  }
}

@media (max-width: 620px) {
  .auth-inner {
    width: min(100% - 1.25rem, var(--container));
  }

  .auth-status,
  .auth-meta {
    gap: 0.42rem;
  }

  .auth-icp {
    padding-left: 0.5rem;
  }

  .header-deck {
    width: min(100% - 1.25rem, var(--container));
    gap: 0.65rem;
  }

  .brand-mark {
    width: 2.65rem;
    height: 2.65rem;
  }

  .brand-sub {
    font-size: 0.5rem;
    letter-spacing: 0.15em;
  }

  .brand-name {
    font-size: 1rem;
  }

  .nav-toggle {
    min-height: 2.4rem;
    padding: 0.42rem 0.65rem;
  }

  .nav-toggle-label {
    font-size: 0.62rem;
  }
}

@media (max-width: 420px) {
  .auth-live {
    display: none;
  }

  .brand-sub {
    letter-spacing: 0.12em;
  }
}

.site-footer {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(30, 74, 109, 0.9);
  background:
    radial-gradient(ellipse at 12% 0%, rgba(34, 211, 238, 0.11), transparent 28rem),
    radial-gradient(ellipse at 88% 100%, rgba(249, 115, 22, 0.07), transparent 24rem),
    linear-gradient(180deg, rgba(7, 25, 45, 0.96), rgba(6, 20, 38, 1));
  color: var(--color-mist);
}

.footer-scan {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent 66%);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.5);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(220px, 1.05fr) minmax(0, 2fr);
  gap: clamp(2rem, 5vw, 5rem);
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--color-star);
}

.footer-brand-link strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.footer-brand-link small {
  display: block;
  margin-top: 0.2rem;
  color: var(--color-cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.18em;
}

.footer-mark {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 3rem;
  height: 3rem;
  border: 1px solid rgba(34, 211, 238, 0.55);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(125, 235, 250, 0.28), rgba(34, 211, 238, 0.06) 45%, transparent 70%);
  box-shadow: inset 0 0 18px rgba(34, 211, 238, 0.12), 0 0 24px rgba(34, 211, 238, 0.1);
}

.footer-mark::before {
  content: "";
  position: absolute;
  inset: -5px 16px;
  border: 1px solid rgba(249, 115, 22, 0.54);
  border-radius: 50%;
  transform: rotate(35deg);
}

.footer-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-cyan-soft);
  box-shadow: 0 0 12px var(--color-cyan);
  transform: translate(-50%, -50%);
}

.footer-tagline {
  max-width: 34ch;
  color: var(--color-mist);
  font-size: 0.92rem;
  line-height: 1.8;
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 0.68rem;
  border: 1px solid rgba(52, 211, 153, 0.32);
  border-radius: 999px;
  color: var(--color-green);
  background: rgba(52, 211, 153, 0.07);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
}

.footer-col {
  min-width: 0;
  padding-left: clamp(1rem, 2vw, 1.8rem);
  border-left: 1px solid rgba(30, 74, 109, 0.72);
}

.footer-heading {
  margin-bottom: 0.9rem;
  color: var(--color-cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-list {
  display: grid;
  gap: 0.5rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-mist);
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-link::before {
  content: "";
  width: 0.55rem;
  height: 1px;
  background: var(--color-line);
  transition: width 180ms var(--ease), background-color 180ms var(--ease);
}

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

.footer-link:hover::before {
  width: 0.9rem;
  background: var(--color-cyan);
}

.footer-contact {
  display: grid;
  gap: 0.75rem;
}

.footer-contact-item {
  display: grid;
  gap: 0.1rem;
}

.footer-label {
  color: rgba(169, 196, 216, 0.62);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-value {
  overflow-wrap: anywhere;
  color: var(--color-star);
  font-size: 0.88rem;
  line-height: 1.65;
}

.footer-route {
  display: inline-flex;
  align-items: center;
  min-height: 2.3rem;
  margin-top: 1rem;
  padding: 0.42rem 0.72rem;
  border: 1px solid rgba(34, 211, 238, 0.42);
  border-radius: 999px;
  color: var(--color-cyan-soft);
  background: rgba(34, 211, 238, 0.06);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.footer-route:hover {
  color: var(--color-space);
  background: var(--color-cyan-soft);
  border-color: var(--color-cyan-soft);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem 1.5rem;
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
  padding: 1.2rem 0;
  border-top: 1px solid rgba(30, 74, 109, 0.8);
  color: rgba(169, 196, 216, 0.72);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
}

.footer-copy,
.footer-note {
  margin: 0;
}

.footer-sep {
  padding: 0 0.25rem;
  color: var(--color-line);
}

@media (max-width: 980px) {
  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    max-width: 38rem;
  }

  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem;
  }

  .footer-col {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 560px) {
  .footer-main {
    width: min(100% - 1.25rem, var(--container));
    padding: 2.4rem 0 3rem;
  }

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

  .footer-col {
    padding-top: 1rem;
    border-top: 1px solid rgba(30, 74, 109, 0.72);
  }

  .footer-base {
    flex-direction: column;
    align-items: flex-start;
    width: min(100% - 1.25rem, var(--container));
  }
}

.content-shell {
  width: min(100% - 2rem, var(--container-text));
  margin: 0 auto;
}

.content-shell--wide {
  width: min(100% - 2rem, var(--container));
}

.content-shell--narrow {
  width: min(100% - 2rem, var(--container-narrow));
}

.page-section {
  position: relative;
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.page-section--tight {
  padding-top: clamp(2rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.section-head {
  display: grid;
  gap: 0.75rem;
  max-width: 62rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.8rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1.5;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 1.7rem;
  height: 1px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.42);
}

.display-title {
  max-width: 15ch;
  color: var(--color-star);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 5.5vw, 5.4rem);
  font-weight: 300;
  letter-spacing: 0.07em;
  line-height: 1.05;
  text-wrap: balance;
}

.section-lede {
  max-width: 66ch;
  color: var(--color-mist);
  font-size: clamp(1rem, 1.25vw, 1.12rem);
  line-height: 1.85;
}

.section-rule {
  width: 100%;
  height: 1px;
  margin: clamp(1.5rem, 4vw, 2.8rem) 0;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.48), rgba(30, 74, 109, 0.85), transparent);
}

.breadcrumb {
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(30, 74, 109, 0.55);
  color: var(--color-mist);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.07em;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb-list li + li::before {
  content: "/";
  padding-right: 0.4rem;
  color: rgba(169, 196, 216, 0.46);
}

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

.breadcrumb-link:hover {
  color: var(--color-cyan-soft);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.8rem;
  padding: 0.64rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1.3;
  text-align: center;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  color: #04111e;
  background: linear-gradient(135deg, var(--color-cyan-soft), var(--color-cyan));
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.22);
}

.btn--primary:hover {
  box-shadow: 0 0 34px rgba(34, 211, 238, 0.34);
}

.btn--ghost {
  color: var(--color-star);
  border-color: rgba(30, 74, 109, 0.95);
  background: rgba(11, 42, 74, 0.42);
}

.btn--ghost:hover {
  color: var(--color-cyan-soft);
  border-color: rgba(34, 211, 238, 0.6);
  background: rgba(34, 211, 238, 0.08);
}

.btn--signal {
  color: #1a0d03;
  background: linear-gradient(135deg, #ffb56b, var(--color-orange));
  box-shadow: 0 0 24px rgba(249, 115, 22, 0.2);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  min-height: 1.45rem;
  padding: 0.16rem 0.5rem;
  border: 1px solid rgba(30, 74, 109, 0.9);
  border-radius: 0.35rem;
  color: var(--color-mist);
  background: rgba(11, 42, 74, 0.52);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag--cyan {
  color: var(--color-cyan-soft);
  border-color: rgba(34, 211, 238, 0.42);
  background: rgba(34, 211, 238, 0.08);
}

.tag--orange {
  color: #ffc08c;
  border-color: rgba(249, 115, 22, 0.44);
  background: rgba(249, 115, 22, 0.09);
}

.tag--green {
  color: #8ff0ce;
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.08);
}

.tag--rose {
  color: #ffb5c1;
  border-color: rgba(251, 113, 133, 0.42);
  background: rgba(251, 113, 133, 0.08);
}

.panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1rem, 2.5vw, 1.55rem);
  border: 1px solid rgba(30, 74, 109, 0.86);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(16, 54, 92, 0.6), rgba(11, 42, 74, 0.45));
  box-shadow: var(--shadow-panel);
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.2rem;
  width: 3.6rem;
  height: 1px;
  background: linear-gradient(90deg, var(--color-orange), transparent);
  opacity: 0.8;
}

.panel--cut {
  border-radius: 0;
  clip-path: polygon(0 0, calc(100% - 1.15rem) 0, 100% 1.15rem, 100% 100%, 0 100%);
}

.panel--diagnostic {
  border-left: 2px solid var(--color-cyan);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(34, 211, 238, 0.12), transparent 16rem),
    linear-gradient(145deg, rgba(16, 54, 92, 0.68), rgba(11, 42, 74, 0.52));
}

.info-plate {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 1rem;
  border-left: 2px solid var(--color-orange);
  background: linear-gradient(90deg, rgba(249, 115, 22, 0.08), transparent);
}

.info-plate__label {
  color: rgba(169, 196, 216, 0.72);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.info-plate__value {
  color: var(--color-star);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 1.7rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(30, 74, 109, 0.9);
  border-radius: 999px;
  color: var(--color-mist);
  background: rgba(11, 42, 74, 0.48);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.06em;
}

.status-pill--green {
  color: var(--color-green);
  border-color: rgba(52, 211, 153, 0.34);
  background: rgba(52, 211, 153, 0.07);
}

.status-pill--orange {
  color: var(--color-orange);
  border-color: rgba(249, 115, 22, 0.36);
  background: rgba(249, 115, 22, 0.07);
}

.status-pill--rose {
  color: var(--color-rose);
  border-color: rgba(251, 113, 133, 0.34);
  background: rgba(251, 113, 133, 0.07);
}

.grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.7rem);
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(30, 74, 109, 0.82);
  border-radius: var(--radius-md);
  background:
    radial-gradient(ellipse at 20% 10%, rgba(34, 211, 238, 0.16), transparent 18rem),
    radial-gradient(ellipse at 88% 100%, rgba(249, 115, 22, 0.12), transparent 16rem),
    linear-gradient(145deg, rgba(16, 54, 92, 0.85), rgba(11, 42, 74, 0.8));
  isolation: isolate;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.16) 1px, transparent 1px);
  background-size: 34px 34px;
}

.media-frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 3;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, var(--color-cyan-soft), transparent);
  opacity: 0.7;
}

.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame figcaption {
  position: absolute;
  right: 0.9rem;
  bottom: 0.9rem;
  left: 0.9rem;
  z-index: 4;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(30, 74, 109, 0.9);
  border-radius: 0.45rem;
  color: var(--color-star);
  background: rgba(6, 20, 38, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font-size: 0.76rem;
  line-height: 1.6;
}

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

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

.rail-layout {
  display: grid;
  grid-template-columns: minmax(140px, 210px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.rail-panel {
  position: sticky;
  top: 8rem;
  display: grid;
  gap: 0.8rem;
  padding: 1rem 0 1rem 1rem;
  border-left: 1px solid rgba(34, 211, 238, 0.3);
}

.rail-canvas {
  min-width: 0;
}

@media (max-width: 980px) {
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .rail-layout {
    grid-template-columns: 1fr;
  }

  .rail-panel {
    position: relative;
    top: auto;
    grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
    padding: 0.9rem 0 0;
    border-top: 1px solid rgba(34, 211, 238, 0.22);
    border-left: 0;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .content-shell,
  .content-shell--wide,
  .content-shell--narrow {
    width: min(100% - 1.25rem, var(--container));
  }

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

  .display-title {
    max-width: 100%;
  }

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

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

@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;
  }

  .signal-dot::after {
    display: none;
  }

  .btn:hover,
  .footer-link:hover {
    transform: none;
  }
}