/* =========================================================
   银河澳门官网口 · 共享站点样式 /assets/site.css
   深空底 + 纸层插页 + 轨道索引
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd, fieldset {
  margin: 0;
}

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

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

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

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

/* ---------- 2. Tokens ---------- */
:root {
  --deep: #070B1F;
  --deep-2: #101A3D;
  --deep-3: #0A1130;
  --purple: #5B3FD6;
  --cyan: #35E0D6;
  --pink: #FF6FA5;
  --gold: #F2B84B;
  --paper: #F5F1E8;
  --paper-ink: #161B2E;
  --ink: #EAF0FF;
  --muted: #A9B6D9;
  --line: #2A3A6E;

  --fs-display: clamp(2.6rem, 7vw, 5.5rem);
  --fs-h1: clamp(2rem, 4.4vw, 3.5rem);
  --fs-h2: clamp(1.5rem, 2.8vw, 2.25rem);
  --fs-h3: clamp(1.2rem, 1.9vw, 1.75rem);
  --fs-body: clamp(1rem, 1.05vw, 1.125rem);
  --fs-note: 0.875rem;

  --shell: 1360px;
  --narrow: 900px;
  --gutter: clamp(18px, 4.5vw, 44px);

  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --font-heading: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: var(--font-heading);
  --font-mono: "Orbitron", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Courier New", monospace;

  --shadow-paper: 6px 6px 0 rgba(91, 63, 214, 0.38);
  --shadow-paper-sm: 4px 4px 0 rgba(91, 63, 214, 0.45);
  --radius: 2px;
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  letter-spacing: 0.01em;
  color: var(--ink);
  background-color: var(--deep);
  background-image:
    radial-gradient(1.2px 1.2px at 18% 24%, rgba(234, 240, 255, 0.55), transparent),
    radial-gradient(1px 1px at 68% 9%, rgba(53, 224, 214, 0.5), transparent),
    radial-gradient(1.4px 1.4px at 42% 72%, rgba(242, 184, 75, 0.42), transparent),
    radial-gradient(1200px 760px at 84% -12%, rgba(91, 63, 214, 0.42), transparent 62%),
    radial-gradient(920px 640px at 4% 16%, rgba(53, 224, 214, 0.14), transparent 66%),
    radial-gradient(760px 560px at 50% 118%, rgba(255, 111, 165, 0.13), transparent 68%);
  background-size: 420px 420px, 360px 360px, 520px 520px, auto, auto, auto;
  background-repeat: repeat, repeat, repeat, no-repeat, no-repeat, no-repeat;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

p { margin-bottom: 1.2em; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 0.6em;
  text-wrap: balance;
}

h1, .display-title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.015em;
}

h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: 1.1rem; }

.display-hero {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.4em;
}

strong { color: var(--ink); font-weight: 700; }
small { font-size: var(--fs-note); }

/* ---------- 4. Focus / accessibility ---------- */
:focus { outline: none; }

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

.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;
}

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: absolute;
  left: clamp(12px, 3vw, 28px);
  top: -120px;
  z-index: 200;
  padding: 11px 20px;
  background: var(--gold);
  color: #1A1405;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

/* ---------- 6. Scroll progress rail ---------- */
.progress-rail {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 90;
  background: rgba(42, 58, 110, 0.4);
  pointer-events: none;
}

.progress-rail span {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--purple), var(--cyan) 58%, var(--pink));
}

/* ---------- 7. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(7, 11, 31, 0.96), rgba(10, 17, 48, 0.86));
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  backdrop-filter: blur(12px) saturate(130%);
}

.header-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 12px var(--gutter);
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 40px);
}

.brand-cluster {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 22px);
  min-width: 0;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--ink);
  transition: opacity 0.2s ease;
}

.brand-mark:hover { opacity: 0.86; }

.brand-glyph {
  position: relative;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #EAF0FF 0 5%, #35E0D6 11%, #5B3FD6 52%, #101A3D 100%);
  box-shadow: 0 0 0 1px var(--line), 0 0 18px rgba(53, 224, 214, 0.35);
}

.brand-glyph::after {
  content: "";
  position: absolute;
  inset: -5px -11px;
  border-radius: 50%;
  border: 1px solid rgba(242, 184, 75, 0.5);
  transform: rotate(-24deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.35;
  white-space: nowrap;
}

.brand-tagline {
  font-size: 0.73rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.5;
  white-space: nowrap;
}

.brand-coord {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-left: clamp(12px, 2vw, 22px);
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  white-space: nowrap;
  margin: 0;
}

.coord-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulseDot 2.6s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.68); }
}

/* --- navigation --- */
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 9px 2px;
  font-size: 0.93rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 0;
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--cyan), var(--pink));
  transition: width 0.26s ease;
}

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

.nav-link:hover::after,
.nav-link:focus-visible::after { width: 100%; }

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

.nav-link[aria-current="page"]::after {
  width: 100%;
  background: var(--cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* --- toggle --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 26, 61, 0.6);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.nav-toggle-label {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.nav-toggle-bars i {
  display: block;
  height: 1px;
  width: 100%;
  background: currentColor;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.nav-toggle-bars i:nth-child(2) {
  width: 70%;
  align-self: flex-end;
}

.site-header[data-open] .nav-toggle-bars i:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars i:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle-bars i:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- 8. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
              background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-solid {
  background: var(--purple);
  color: #FFFFFF;
  box-shadow: 3px 3px 0 rgba(53, 224, 214, 0.5);
}

.btn-solid:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 rgba(53, 224, 214, 0.6);
}

.btn-solid:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 rgba(53, 224, 214, 0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

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

.btn-ghost:active {
  transform: translate(1px, 1px);
}

.btn-gold {
  background: var(--gold);
  color: #1A1405;
  box-shadow: 3px 3px 0 rgba(255, 111, 165, 0.45);
}

.btn-gold:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 rgba(255, 111, 165, 0.6);
}

.btn-gold:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 rgba(255, 111, 165, 0.45);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.86rem;
}

/* ---------- 9. Layout ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.shell-narrow {
  width: 100%;
  max-width: var(--narrow);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(56px, 9vw, 120px); }
.section-tight { padding-block: clamp(36px, 5vw, 64px); }

.grid-split {
  display: grid;
  grid-template-columns: minmax(0, 1.63fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
}

.grid-duo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: clamp(18px, 2.6vw, 32px);
}

.grid-trio {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: clamp(16px, 2.4vw, 28px);
}

.stack > * + * { margin-top: 1.2em; }

/* ---------- 10. Typographic helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.lede {
  max-width: 62ch;
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  line-height: 1.85;
  color: var(--muted);
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

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

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

.text-cyan { color: var(--cyan); }
.text-gold { color: var(--gold); }
.text-pink { color: var(--pink); }
.text-muted { color: var(--muted); }

.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(53, 224, 214, 0.4);
  transition: border-color 0.2s ease;
}

.prose a:hover { border-bottom-color: var(--cyan); }

/* ---------- 11. Panels & cards ---------- */
.panel {
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel-dark {
  background: linear-gradient(155deg, rgba(16, 26, 61, 0.9), rgba(7, 11, 31, 0.94));
}

.panel-paper {
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow-paper);
}

.panel-paper h1,
.panel-paper h2,
.panel-paper h3 { color: var(--paper-ink); }

.panel-paper a {
  color: #2E1E86;
  border-bottom: 1px solid rgba(46, 30, 134, 0.35);
}

.panel-paper .muted { color: #5A5F79; }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(16, 26, 61, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.24s ease, transform 0.24s ease;
}

.card:hover {
  border-color: rgba(53, 224, 214, 0.55);
  transform: translateY(-3px);
}

.card-paper {
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow-paper-sm);
}

.card-paper:hover { border-color: var(--purple); }

.card-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.card-text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.card-paper .card-text { color: #4A4F68; }

/* ---------- 12. Chapter band ---------- */
.chapter-band {
  position: relative;
  padding-left: clamp(28px, 5vw, 64px);
}

.chapter-band .band-line {
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 2px;
  height: calc(100% - 0.7em);
  border-radius: 2px;
  background: var(--line);
  overflow: hidden;
}

.chapter-band .band-line i {
  display: block;
  width: 100%;
  height: var(--band-progress, 0%);
  background: linear-gradient(180deg, var(--purple), var(--cyan));
  transition: height 0.4s ease;
}

.chapter-number {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- 13. Tags & markers ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.6;
}

.tag-cyan { color: var(--cyan); background: rgba(53, 224, 214, 0.08); }
.tag-pink { color: #2A0616; background: var(--pink); border-color: transparent; }
.tag-gold { color: #221803; background: var(--gold); border-color: transparent; }
.tag-purple { color: #EDE7FF; background: rgba(91, 63, 214, 0.5); border-color: rgba(91, 63, 214, 0.9); }

.star-marker {
  display: inline-block;
  width: 14px;
  height: 14px;
  vertical-align: -2px;
  background: currentColor;
  color: var(--gold);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

/* ---------- 14. Orbit index ---------- */
.orbit-index {
  position: relative;
  padding-left: 20px;
}

.orbit-index::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--purple), var(--cyan), transparent);
}

.orbit-group {
  border-bottom: 1px solid var(--line);
  padding: 2px 0;
}

.orbit-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 12px 0;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  transition: color 0.2s ease;
}

.orbit-group-head:hover { color: var(--cyan); }

.orbit-group-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.orbit-group-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.orbit-group[data-open] .orbit-group-body { grid-template-rows: 1fr; }

.orbit-group-body > div { overflow: hidden; }

.orbit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.orbit-item a {
  color: inherit;
  transition: color 0.2s ease;
}

.orbit-item a:hover { color: var(--cyan); }

.orbit-item[aria-current="true"] { color: var(--ink); }

.orbit-dot {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
}

.orbit-item[aria-current="true"] .orbit-dot {
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.orbit-item--float { animation: orbitFloat 10s ease-in-out infinite; }
.orbit-item--float:nth-child(even) { animation-duration: 12s; animation-delay: -3s; }
.orbit-item--float:hover { animation-play-state: paused; }

@keyframes orbitFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ---------- 15. Disclosure ---------- */
.disclosure { border-bottom: 1px solid var(--line); }

.disclosure-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 2px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.disclosure-trigger:hover { color: var(--cyan); }

.disclosure-icon {
  position: relative;
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  color: currentColor;
}

.disclosure-icon::before,
.disclosure-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.disclosure-icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  transform: translateY(-0.5px);
}

.disclosure-icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  transform: translateX(-0.5px) scaleY(1);
  transition: transform 0.18s ease;
}

.disclosure[data-open] .disclosure-icon::after { transform: translateX(-0.5px) scaleY(0); }

.disclosure-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}

.disclosure[data-open] .disclosure-panel { grid-template-rows: 1fr; }

.disclosure-panel > div { overflow: hidden; }

.disclosure-panel-inner {
  padding: 0 2px 20px;
  font-size: 0.95rem;
  color: var(--muted);
}

/* ---------- 16. Media frame ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(90% 70% at 22% 12%, rgba(255, 111, 165, 0.22), transparent 62%),
    linear-gradient(150deg, rgba(91, 63, 214, 0.42), rgba(16, 26, 61, 0.94) 56%, rgba(53, 224, 214, 0.2));
}

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(53, 224, 214, 0.16), transparent 58%),
    linear-gradient(180deg, transparent 55%, rgba(7, 11, 31, 0.5));
}

.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--wide { aspect-ratio: 21 / 9; }

.media-frame--offset {
  margin-top: clamp(16px, 3vw, 48px);
}

.media-caption {
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 17. Breadcrumbs ---------- */
.breadcrumbs {
  font-size: 0.84rem;
  color: var(--muted);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li + li::before {
  content: "/";
  color: var(--line);
}

.breadcrumb-list a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.breadcrumb-list a:hover { color: var(--cyan); }

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

/* ---------- 18. Reveal ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ---------- 19. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 140px);
  overflow: hidden;
  color: var(--muted);
  background: linear-gradient(180deg, rgba(10, 17, 48, 0.96), var(--deep) 62%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple), var(--cyan), var(--pink), transparent);
  opacity: 0.85;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: -260px;
  right: -160px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 63, 214, 0.42), transparent 68%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 80px) var(--gutter) 34px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(26px, 4vw, 60px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-glyph {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #EAF0FF 0 5%, #35E0D6 12%, #5B3FD6 55%, #101A3D 100%);
  box-shadow: 0 0 0 1px var(--line), 0 0 14px rgba(91, 63, 214, 0.6);
}

.footer-line-1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.footer-line-3 {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

.footer-nav-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

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

.footer-nav-link {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-nav-link:hover {
  color: var(--cyan);
  padding-left: 4px;
}

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

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-item {
  font-size: 0.9rem;
  line-height: 1.7;
}

.contact-key {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(169, 182, 217, 0.7);
}

.contact-value {
  color: var(--ink);
  word-break: break-word;
}

.footer-note {
  margin-top: 14px;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--muted);
}

.footer-news-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: clamp(34px, 5vw, 60px) 0 clamp(22px, 3vw, 34px);
  padding: 16px 22px;
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--paper-ink);
  box-shadow: var(--shadow-paper-sm);
  transition: transform 0.26s ease, box-shadow 0.26s ease;
}

.footer-news-band:hover,
.footer-news-band:focus-visible {
  transform: translateX(4px);
  box-shadow: 8px 8px 0 rgba(53, 224, 214, 0.55);
}

.footer-news-text {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer-news-meta {
  font-size: 0.85rem;
  color: #4A4F68;
}

.footer-news-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: #2E1E86;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 0.83rem;
}

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

.footer-legal-links a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-legal-links a:hover,
.footer-legal-links a[aria-current="page"] { color: var(--cyan); }

.footer-colophon {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.footer-icp,
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- 20. Tablet ---------- */
@media (max-width: 1100px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 10px var(--gutter) 26px;
    background: linear-gradient(180deg, #0A1130, #0B1533 70%, #070B1F);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 40px rgba(0, 0, 0, 0.5);
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.26s ease, visibility 0s linear 0.4s;
  }

  .site-header[data-open] .site-nav {
    max-height: min(78vh, 640px);
    opacity: 1;
    visibility: visible;
    overflow-y: auto;
    transition: max-height 0.4s ease, opacity 0.26s ease, visibility 0s linear 0s;
  }

  .nav-list { display: grid; gap: 2px; }

  .nav-link {
    display: block;
    padding: 13px 2px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(42, 58, 110, 0.6);
  }

  .nav-link::after { display: none; }

  .nav-actions { padding-top: 14px; flex-wrap: wrap; }
}

@media (max-width: 900px) {
  .grid-split { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .brand-coord { display: none; }
}

/* ---------- 21. Phone ---------- */
@media (max-width: 600px) {
  .header-inner { min-height: 66px; padding-block: 10px; }
  .brand-tagline { display: none; }
  .brand-name { font-size: 1rem; letter-spacing: 0.04em; }
  .brand-glyph { width: 30px; height: 30px; }
  .nav-toggle { padding: 8px 13px; }
  .nav-actions { width: 100%; }
  .nav-actions .btn { flex: 1 1 auto; }
  .footer-news-band { padding: 15px 16px; }
  .footer-legal { justify-content: flex-start; }
  .media-frame--offset { margin-top: 0; }
}

@media (max-width: 380px) {
  .brand-name { font-size: 0.92rem; }
  .nav-toggle-label { display: none; }
}

/* ---------- 22. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  html.js [data-reveal] { opacity: 1; transform: none; }
  .orbit-item--float { animation: none; }
  .coord-dot { animation: none; }
}

/* ---------- 23. Print ---------- */
@media print {
  .site-header,
  .site-footer,
  .progress-rail,
  .skip-link { display: none; }

  body { background: #FFFFFF; color: #000000; }
}