/* ============================================
   万博引力 · 检索更新总录
   /assets/site.css
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  --c-deep: #0A0E27;
  --c-nebula: #121A3B;
  --c-galaxy: #1C2B4A;
  --c-gold: #E8B84B;
  --c-gold-soft: #FFD780;
  --c-pearl: #F5F7FA;
  --c-moon: #A0A8C0;
  --c-alert: #E5484D;
  --c-ok: #46A758;

  --grad-stellar: linear-gradient(135deg, #0A0E27 0%, #1C2B4A 100%);
  --grad-gold: linear-gradient(120deg, #E8B84B 0%, #FFD780 100%);

  --font-display: "Space Grotesk", "Noto Sans SC", sans-serif;
  --font-body: "Inter", "Noto Sans SC", sans-serif;

  --t-display: clamp(3rem, 8vw, 6rem);
  --t-h1: clamp(2.5rem, 5vw, 4rem);
  --t-h2: clamp(2rem, 3vw, 2.8rem);
  --t-h3: clamp(1.4rem, 2vw, 1.8rem);
  --t-body: 1rem;
  --t-caption: 0.875rem;

  --lh-display: 1.1;
  --lh-heading: 1.3;
  --lh-body: 1.7;
  --lh-caption: 1.5;

  --container-max: 1480px;
  --container-pad: clamp(1.25rem, 4vw, 3rem);
  --dur: 280ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: var(--lh-body);
  color: var(--c-pearl);
  background: var(--c-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
  border-radius: 0;
}

::selection {
  background: rgba(232, 184, 75, 0.28);
  color: var(--c-pearl);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---------- Section & Heading Clusters ---------- */
.section {
  position: relative;
  padding-block: clamp(3rem, 7vw, 6rem);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: clamp(1rem, 2vw, 1.5rem);
  border-bottom: 1px solid rgba(160, 168, 192, 0.15);
}

.section-index {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--t-h2);
  font-weight: 600;
  line-height: var(--lh-heading);
  letter-spacing: -0.01em;
}

.section-desc {
  max-width: 36rem;
  color: var(--c-moon);
  font-size: var(--t-caption);
}

/* ---------- Exhibition Tag ---------- */
.expo-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid rgba(232, 184, 75, 0.4);
  background: rgba(10, 14, 39, 0.45);
  color: var(--c-gold);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.expo-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--c-gold);
  flex: 0 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--c-pearl);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition:
    background-color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out),
    box-shadow var(--dur) var(--ease-out);
}

.btn-primary {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: var(--c-deep);
}

.btn-primary:hover {
  background: var(--c-gold-soft);
  border-color: var(--c-gold-soft);
  box-shadow: 0 4px 20px rgba(232, 184, 75, 0.25);
}

.btn-ghost {
  border-color: rgba(160, 168, 192, 0.4);
  color: var(--c-moon);
}

.btn-ghost:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-soft);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding-block: 1rem 0;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb-item {
  font-size: 0.8125rem;
  color: var(--c-moon);
}

.breadcrumb-link {
  color: var(--c-moon);
  transition: color var(--dur) var(--ease-out);
}

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

.breadcrumb-sep {
  color: rgba(160, 168, 192, 0.4);
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border: 1px solid rgba(160, 168, 192, 0.18);
  background: linear-gradient(135deg, rgba(18, 26, 59, 0.85) 0%, rgba(10, 14, 39, 0.9) 100%);
  transition:
    border-color var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out),
    transform var(--dur) var(--ease-out);
}

.card::after {
  content: attr(data-code);
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: rgba(160, 168, 192, 0.5);
}

.card:hover {
  border-color: rgba(232, 184, 75, 0.55);
  background-color: var(--c-galaxy);
  transform: translateY(-2px);
}

.card-title {
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--t-h3);
  font-weight: 600;
  line-height: var(--lh-heading);
}

.card-desc {
  color: var(--c-moon);
  font-size: var(--t-caption);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  color: var(--c-gold);
  transition:
    color var(--dur) var(--ease-out),
    gap var(--dur) var(--ease-out);
}

.card-link:hover {
  color: var(--c-gold-soft);
  gap: 0.75rem;
}

/* ---------- Index Table ---------- */
.idx-grid {
  border-top: 1px solid rgba(160, 168, 192, 0.12);
}

.idx-item {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: clamp(1rem, 2vw, 1.5rem) 0;
  border-bottom: 1px solid rgba(160, 168, 192, 0.12);
  transition: background-color var(--dur) var(--ease-out);
}

.idx-item:hover {
  background-color: rgba(28, 43, 74, 0.45);
}

.idx-num {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}

.idx-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
}

.idx-route {
  color: var(--c-moon);
  font-size: 0.8125rem;
  text-align: right;
}

/* ---------- Plate ---------- */
.plate {
  border: 1px solid rgba(160, 168, 192, 0.18);
  background: var(--c-nebula);
}

.plate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid rgba(160, 168, 192, 0.12);
}

.plate-label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.plate-body {
  padding: 0.75rem 1rem 1rem;
}

.plate-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: var(--lh-heading);
}

.plate-note {
  margin-top: 0.375rem;
  color: var(--c-moon);
  font-size: 0.875rem;
}

/* ---------- Frame ---------- */
.frame {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid rgba(160, 168, 192, 0.25);
  background: linear-gradient(135deg, rgba(18, 26, 59, 0.6) 0%, rgba(10, 14, 39, 0.85) 100%);
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 3rem;
  height: 3rem;
  pointer-events: none;
}

.frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--c-gold);
  border-left: 2px solid var(--c-gold);
}

.frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--c-gold);
  border-bottom: 2px solid var(--c-gold);
}

/* ---------- Media Frame ---------- */
.media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(160, 168, 192, 0.18);
  background: var(--c-nebula);
}

.media-frame::before {
  content: attr(data-placeholder);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0.75rem;
  border: 1px dashed rgba(160, 168, 192, 0.25);
  color: rgba(160, 168, 192, 0.4);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: center;
}

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

.media-caption {
  padding: 0.75rem 1rem;
  margin-top: 0.625rem;
  border-left: 2px solid var(--c-gold);
  background: rgba(18, 26, 59, 0.6);
  color: var(--c-moon);
  font-size: 0.8125rem;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  position: relative;
  z-index: 50;
  background: rgba(10, 14, 39, 0.92);
  border-bottom: 1px solid rgba(160, 168, 192, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 45% 90% at 0% 0%, rgba(28, 43, 74, 0.35) 0%, transparent 55%),
    radial-gradient(ellipse 35% 80% at 100% 0%, rgba(18, 26, 59, 0.6) 0%, transparent 60%);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -200%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--c-gold);
  color: var(--c-deep);
  font-weight: 600;
  font-size: 0.875rem;
  transition: top var(--dur) var(--ease-out);
}

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

/* Scroll Progress */
.scroll-tracking {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 2px;
  overflow: hidden;
  background: rgba(160, 168, 192, 0.1);
  pointer-events: none;
}

.scroll-tracking::after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: var(--grad-gold);
  transform: scaleX(var(--progress, 0));
  transform-origin: left center;
  will-change: transform;
}

/* Header Inner */
.header-inner {
  position: relative;
}

/* Masthead */
.masthead {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  padding-block: clamp(1.25rem, 3vw, 2.25rem) clamp(0.75rem, 1.5vw, 1.25rem);
}

.masthead-rule {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(232, 184, 75, 0.7) 50%, transparent 100%);
}

.masthead-scan {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  line-height: 1.4;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.masthead-scan-left {
  align-items: flex-start;
}

.masthead-scan-right {
  align-items: flex-end;
}

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

.scan-coord {
  color: rgba(160, 168, 192, 0.45);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  justify-self: center;
}

.brand-emblem {
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
}

.emblem-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--c-gold);
  transform: translate(-50%, -50%);
}

.emblem-orbit-a,
.emblem-orbit-b {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(232, 184, 75, 0.7);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.emblem-orbit-a {
  width: 1.875rem;
  height: 1.875rem;
}

.emblem-orbit-b {
  width: 2.75rem;
  height: 1.25rem;
  border-color: rgba(160, 168, 192, 0.45);
  transform: translate(-50%, -50%) rotate(-24deg);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-sub {
  margin-top: 0.25rem;
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--c-moon);
}

/* Masthead Utilities & Actions */
.masthead-utilities {
  display: flex;
  align-items: center;
  gap: 1.125rem;
  justify-self: end;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

/* Search Trigger */
.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(160, 168, 192, 0.2);
  color: var(--c-moon);
  transition:
    border-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out);
}

.search-trigger:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-soft);
}

.search-glyph {
  position: relative;
  display: inline-block;
  width: 1rem;
  height: 1rem;
}

.glyph-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 0.6875rem;
  height: 0.6875rem;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.glyph-stem {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 0.5rem;
  height: 1px;
  background: currentColor;
  transform: rotate(45deg);
  transform-origin: right center;
}

.trigger-label {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.375rem;
  padding: 0.5rem 0.25rem;
  min-width: 3rem;
}

.toggle-lines {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.toggle-line {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--c-pearl);
  transition:
    transform var(--dur) var(--ease-out),
    opacity var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out);
}

.nav-toggle.is-active .toggle-line:nth-child(1) {
  transform: translateY(0.42rem) rotate(45deg);
}

.nav-toggle.is-active .toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .toggle-line:nth-child(3) {
  transform: translateY(-0.42rem) rotate(-45deg);
}

.toggle-label {
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--c-moon);
}

/* Site Nav */
.site-nav {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid rgba(160, 168, 192, 0.12);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 clamp(1.5rem, 4vw, 3.25rem);
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 0 0.75rem;
  color: var(--c-moon);
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  transition: color var(--dur) var(--ease-out);
}

.nav-link::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--grad-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease-out);
}

.nav-link:hover {
  color: var(--c-pearl);
}

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

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

.nav-sn {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: rgba(232, 184, 75, 0.6);
}

/* Search Panel */
.search-panel {
  margin-bottom: 1.25rem;
  padding: 0.875rem 1rem;
  border: 1px solid rgba(232, 184, 75, 0.3);
  background: rgba(18, 26, 59, 0.85);
  animation: fadeSlide 240ms var(--ease-out);
}

.search-panel[hidden] {
  display: none;
}

.search-panel-line {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.search-marker {
  width: 0.5rem;
  height: 0.5rem;
  flex: 0 0 auto;
  background: var(--c-gold);
}

.search-hint-text {
  flex: 1;
  color: var(--c-moon);
  font-size: 0.875rem;
}

.search-key {
  padding: 0.25rem 0.5rem;
  border: 1px solid rgba(232, 184, 75, 0.3);
  font-family: var(--font-display);
  font-size: 0.6875rem;
  color: rgba(232, 184, 75, 0.6);
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 1.5rem;
  background: var(--c-deep);
  border-top: 1px solid rgba(232, 184, 75, 0.18);
}

.footer-celestial {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 85% 20%, rgba(18, 26, 59, 0.65) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(28, 43, 74, 0.5) 0%, transparent 60%);
}

.celestial-star {
  position: absolute;
  top: var(--sy);
  left: var(--sx);
  width: 2px;
  height: 2px;
  background: rgba(232, 184, 75, 0.6);
}

.celestial-star::after {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 184, 75, 0.6) 0%, transparent 70%);
}

.footer-inner {
  position: relative;
  z-index: 1;
}

.footer-topline {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(160, 168, 192, 0.45);
}

.footer-tick {
  width: 2.5rem;
  height: 1px;
  background: var(--c-gold);
}

.footer-code {
  color: var(--c-moon);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 0.8fr 0.8fr 1.2fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
  border-bottom: 1px solid rgba(160, 168, 192, 0.15);
}

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

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 1.5rem;
}

.footer-emblem {
  width: 3rem;
  height: 3rem;
}

.footer-statement {
  max-width: 34ch;
  margin-bottom: 1rem;
  color: var(--c-moon);
  font-size: 0.9375rem;
}

.footer-trust {
  max-width: 42ch;
  padding-left: 0.875rem;
  border-left: 2px solid rgba(232, 184, 75, 0.4);
  color: rgba(160, 168, 192, 0.75);
  font-size: 0.8125rem;
  line-height: 1.6;
}

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

.footer-heading {
  position: relative;
  margin-bottom: 1.25rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px solid rgba(160, 168, 192, 0.12);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold-soft);
}

.footer-heading::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 2rem;
  height: 2px;
  background: var(--c-gold);
}

.footer-links {
  display: grid;
  gap: 0.625rem;
}

.footer-links a {
  color: var(--c-moon);
  font-size: 0.9375rem;
  transition:
    color var(--dur) var(--ease-out),
    padding-left var(--dur) var(--ease-out);
}

.footer-links a:hover {
  padding-left: 0.25rem;
  color: var(--c-gold-soft);
}

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

.footer-contact li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.contact-label {
  padding-top: 0.125rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(160, 168, 192, 0.6);
}

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

.footer-bottomline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 1.5rem;
  font-size: 0.8125rem;
  color: rgba(160, 168, 192, 0.6);
}

.footer-law {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-law a {
  color: rgba(160, 168, 192, 0.6);
  transition: color var(--dur) var(--ease-out);
}

.footer-law a:hover {
  color: var(--c-gold-soft);
}

.scroll-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid rgba(160, 168, 192, 0.2);
  color: var(--c-moon);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  transition:
    border-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out);
}

.scroll-top:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-soft);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1080px) {
  .masthead-scan-right {
    display: none;
  }

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

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

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

  .masthead-scan-left {
    display: none;
  }

  .brand {
    justify-self: start;
    grid-column: 1;
  }

  .masthead-utilities {
    justify-self: end;
    grid-column: 2;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    z-index: 60;
    display: none;
    flex-direction: column;
    padding: 0.75rem var(--container-pad) 1.5rem;
    background: linear-gradient(180deg, rgba(10, 14, 39, 0.98) 0%, rgba(18, 26, 59, 0.98) 100%);
    border-bottom: 1px solid rgba(232, 184, 75, 0.35);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(160, 168, 192, 0.1);
  }

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

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

@media (max-width: 640px) {
  .brand-emblem {
    width: 2.25rem;
    height: 2.25rem;
  }

  .brand-title {
    font-size: 1.15rem;
  }

  .brand-sub {
    font-size: 0.6rem;
    letter-spacing: 0.24em;
  }

  .masthead {
    padding-block: 1rem 0.875rem;
  }

  .search-key {
    display: none;
  }

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

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

  .idx-item {
    grid-template-columns: 2.5rem 1fr;
  }

  .idx-route {
    display: none;
  }
}

@media (max-width: 480px) {
  .trigger-label {
    display: none;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */
@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-tracking::after {
    transition: none;
  }
}