/* ==========================================================
   Site Kit · 数据展馆 / 实时记分屏
   ========================================================== */

/* ---------- Variables & Reset ---------- */
:root {
  --bg-ink: #0A1428;
  --panel-deep: #121F36;
  --gold-accent: #F5B94A;
  --orange-alert: #FF7A45;
  --green-live: #18D09C;
  --cyan-link: #5AC8FA;
  --text-primary: #E8EDF7;
  --text-secondary: #9AA8C0;
  --line-divider: #22334D;
  --chart-blue: #3D7BFF;

  --font-head: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "JetBrains Mono", "Roboto Mono", "Consolas", monospace;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;

  --container-max: 1360px;
  --header-min-h: 60px;
  --radius-card: 4px;
  --radius-pill: 999px;
  --transition: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-ink);
  background-image:
    radial-gradient(60% 40% at 85% -5%, rgba(61, 123, 255, 0.10) 0%, transparent 100%),
    radial-gradient(50% 35% at 8% 108%, rgba(245, 185, 74, 0.06) 0%, transparent 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  line-height: 1.2;
  font-weight: 800;
  color: var(--text-primary);
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

[id] {
  scroll-margin-top: 100px;
}

::selection {
  background: rgba(245, 185, 74, 0.28);
  color: var(--text-primary);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-ink);
}
::-webkit-scrollbar-thumb {
  background: var(--line-divider);
  border-radius: 999px;
  border: 2px solid var(--bg-ink);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(245, 185, 74, 0.4);
}

:focus-visible {
  outline: 2px solid var(--gold-accent);
  outline-offset: 2px;
}

/* ---------- Utilities ---------- */
.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;
}

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

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}
@media (max-width: 900px) {
  .content-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.btn-gold {
  background: var(--gold-accent);
  color: #081021;
  border-color: var(--gold-accent);
}
.btn-gold:hover {
  background: #ffc966;
  border-color: #ffc966;
  box-shadow: 0 4px 24px rgba(245, 185, 74, 0.28);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--line-divider);
}
.btn-outline:hover {
  border-color: rgba(245, 185, 74, 0.55);
  color: var(--gold-accent);
  background: rgba(245, 185, 74, 0.06);
}

/* ---------- Page Head / Breadcrumb / TOC ---------- */
.page-head {
  padding: clamp(48px, 9vw, 96px) 0 clamp(32px, 5vw, 56px);
  position: relative;
}
.page-head::after {
  content: "";
  position: absolute;
  left: clamp(20px, 4vw, 48px);
  right: clamp(20px, 4vw, 48px);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(245, 185, 74, 0.55) 0%, var(--line-divider) 30%, transparent 100%);
}

.page-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-accent);
  margin-bottom: 14px;
}
.page-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold-accent);
}

.page-title {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-lead {
  max-width: 720px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.toc-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 0 20px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--line-divider);
}
.toc-bar a {
  color: var(--cyan-link);
  font-size: 0.88rem;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition), background-color var(--transition);
}
.toc-bar a:hover {
  color: var(--gold-accent);
  border-color: rgba(245, 185, 74, 0.3);
  background: rgba(245, 185, 74, 0.05);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.breadcrumb a {
  color: var(--cyan-link);
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--gold-accent);
}
.breadcrumb [aria-current="page"] {
  color: var(--text-secondary);
}
.breadcrumb-sep {
  color: var(--line-divider);
}

/* ---------- Section Head ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 28px;
}
.section-index {
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--gold-accent);
}
.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
}
.section-desc {
  flex-basis: 100%;
  margin-top: -6px;
  max-width: 640px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ---------- Panels & Cards ---------- */
.panel {
  background: var(--panel-deep);
  border: 1px solid var(--line-divider);
  border-radius: var(--radius-card);
  padding: 24px;
}

.data-card {
  position: relative;
  background: linear-gradient(145deg, #152340, #101b30);
  border: 1px solid var(--line-divider);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.data-card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 18px;
  height: 18px;
  background: rgba(245, 185, 74, 0.30);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}
.data-card:hover {
  border-color: rgba(245, 185, 74, 0.45);
  box-shadow: 0 0 0 1px rgba(245, 185, 74, 0.12), 0 12px 32px rgba(0, 0, 0, 0.3);
}

/* ---------- Tags & Status ---------- */
.tag-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan-link);
  background: rgba(90, 200, 250, 0.08);
  border: 1px solid rgba(90, 200, 250, 0.25);
  border-radius: 999px;
  padding: 4px 12px;
  white-space: nowrap;
}
.tag-label--gold {
  color: var(--gold-accent);
  background: rgba(245, 185, 74, 0.10);
  border-color: rgba(245, 185, 74, 0.28);
}
.tag-label--green {
  color: var(--green-live);
  background: rgba(24, 208, 156, 0.08);
  border-color: rgba(24, 208, 156, 0.28);
}
.tag-label--orange {
  color: var(--orange-alert);
  background: rgba(255, 122, 69, 0.08);
  border-color: rgba(255, 122, 69, 0.28);
}

.live-dot {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-live);
  flex-shrink: 0;
}
.live-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(24, 208, 156, 0.5);
  animation: live-pulse 1.8s ease-out infinite;
}
@keyframes live-pulse {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* ---------- Stat ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-value {
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.stat-value--gold { color: var(--gold-accent); }
.stat-value--green { color: var(--green-live); }
.stat-value--orange { color: var(--orange-alert); }
.stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
}
.timeline-item {
  position: relative;
  padding: 0 0 28px 26px;
  border-left: 1px solid var(--line-divider);
  margin-left: 6px;
}
.timeline-item:last-child {
  padding-bottom: 4px;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-accent);
  box-shadow: 0 0 0 3px rgba(245, 185, 74, 0.14);
}

/* ---------- Data Table ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--line-divider);
}
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-divider);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.data-table tbody tr {
  transition: background-color var(--transition);
}
.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}
.data-table td:first-child {
  font-weight: 600;
}

/* ---------- Accordion ---------- */
.accordion-item {
  border: 1px solid var(--line-divider);
  background: var(--panel-deep);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
}
.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  transition: background-color var(--transition);
}
.accordion-trigger:hover {
  background: rgba(255, 255, 255, 0.02);
}
.accordion-icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}
.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--text-secondary);
  transition: transform var(--transition), opacity var(--transition);
}
.accordion-icon::before {
  width: 12px;
  height: 2px;
}
.accordion-icon::after {
  width: 2px;
  height: 12px;
}
.accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}
.accordion-panel {
  display: none;
  padding: 0 20px 20px;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.95rem;
}
.accordion-trigger[aria-expanded="true"] + .accordion-panel {
  display: block;
}

/* ---------- Image Frames ---------- */
.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background-color: var(--panel-deep);
  background-image: linear-gradient(135deg, rgba(245, 185, 74, 0.05) 25%, transparent 25%, transparent 50%, rgba(245, 185, 74, 0.05) 50%, rgba(245, 185, 74, 0.05) 75%, transparent 75%, transparent);
  background-size: 20px 20px;
  border: 1px solid var(--line-divider);
  border-radius: var(--radius-card);
}
.img-frame--hero { aspect-ratio: 21 / 9; }
.img-frame--wide { aspect-ratio: 16 / 9; }
.img-frame--card { aspect-ratio: 4 / 3; }
.img-frame--portrait { aspect-ratio: 3 / 4; }
.img-frame--square { aspect-ratio: 1 / 1; }
.img-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.img-frame:hover img {
  transform: scale(1.02);
}

/* ---------- Score Divider ---------- */
.score-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 44px 0;
  color: rgba(154, 168, 192, 0.55);
  font-family: var(--font-data);
  font-size: 0.72rem;
}
.score-divider::before,
.score-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-divider));
}
.score-divider::after {
  background: linear-gradient(90deg, var(--line-divider), transparent);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 10px;
  z-index: 1000;
  width: min(calc(100% - 20px), var(--container-max));
  margin: 10px auto 0;
  border-radius: 999px;
  background: rgba(10, 20, 40, 0.88);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(34, 51, 77, 0.9);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  transition: border-color var(--transition), background-color var(--transition);
}
.site-header:hover {
  border-color: rgba(245, 185, 74, 0.3);
}

.header-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-min-h);
  padding: 0 20px;
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  white-space: nowrap;
}
.brand-mark {
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--gold-accent);
  background: linear-gradient(135deg, rgba(245, 185, 74, 0.18), rgba(245, 185, 74, 0.02));
  border: 1px solid rgba(245, 185, 74, 0.35);
  border-radius: 10px 10px 10px 2px;
  padding: 4px 10px;
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.brand-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  line-height: 1.2;
}
.brand-tagline {
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  line-height: 1.2;
}

/* Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-divider);
  border-radius: 999px;
  background: transparent;
  transition: border-color var(--transition), background-color var(--transition);
}
.nav-toggle:hover {
  border-color: rgba(245, 185, 74, 0.4);
  background: rgba(245, 185, 74, 0.06);
}
.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Nav List */
.site-nav {
  display: flex;
  align-items: center;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition), background-color var(--transition);
}
.nav-list a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}
.nav-list a[aria-current="page"] {
  color: var(--gold-accent);
  background: rgba(245, 185, 74, 0.12);
  font-weight: 600;
}

/* ---------- Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 2000;
  background: var(--gold-accent);
  color: #081021;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 12px 22px;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transition: top 0.3s ease;
}
.skip-link:focus-visible {
  top: 16px;
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  margin-top: 96px;
  background: #070E1C;
  border-top: 1px solid var(--line-divider);
  padding: 64px 0 28px;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(245, 185, 74, 0.5) 30%, rgba(245, 185, 74, 0.15) 70%, transparent 100%);
}

.footer-mast {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px 40px;
  padding-bottom: 44px;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--line-divider);
}
.footer-brand {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--text-primary);
}
.footer-brand-en {
  font-family: var(--font-data);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-top: 8px;
}
.footer-trust {
  position: relative;
  max-width: 540px;
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid rgba(245, 185, 74, 0.5);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}
.footer-trust-mark {
  position: absolute;
  left: -5px;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--gold-accent);
  transform: rotate(45deg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.4fr 0.8fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-col-title {
  display: flex;
  align-items: center;
  font-family: var(--font-data);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold-accent);
  margin-bottom: 18px;
}
.footer-col-title::before {
  content: "◆";
  font-size: 0.5rem;
  margin-right: 7px;
  color: var(--gold-accent);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-list a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-list a:hover {
  color: var(--gold-accent);
  padding-left: 4px;
}

.footer-list-contact li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
}
.footer-label {
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(154, 168, 192, 0.7);
}

.footer-col-index {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-left: 1px solid var(--line-divider);
}
.footer-col-index-num {
  font-family: var(--font-data);
  font-size: 5rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(245, 185, 74, 0.14);
  user-select: none;
}
.footer-col-index-text {
  margin-top: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  line-height: 1.6;
  color: rgba(154, 168, 192, 0.5);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-top: 24px;
  border-top: 1px solid var(--line-divider);
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.footer-legal-sep {
  color: var(--line-divider);
  font-size: 0.7rem;
}

/* ---------- Back to Top ---------- */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--panel-deep);
  border: 1px solid var(--line-divider);
  color: var(--text-secondary);
  font-size: 1.15rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), border-color var(--transition), color var(--transition);
}
.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  border-color: rgba(245, 185, 74, 0.5);
  color: var(--gold-accent);
}
.back-top-icon {
  display: inline-block;
  line-height: 1;
}

/* ---------- Reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(13, 24, 44, 0.98);
    border: 1px solid var(--line-divider);
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  }
  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  .nav-list li + li {
    border-top: 1px solid rgba(34, 51, 77, 0.6);
  }
  .nav-list a {
    display: block;
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 0.95rem;
    color: var(--text-secondary);
  }
  .nav-list a:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
  }
  .nav-list a[aria-current="page"] {
    color: var(--gold-accent);
    background: rgba(245, 185, 74, 0.1);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 28px;
  }
  .footer-col-index {
    border-left: 0;
    border-top: 1px solid var(--line-divider);
    padding-top: 24px;
    grid-column: 1 / -1;
    flex-direction: row;
    gap: 16px;
  }
  .footer-col-index-num {
    font-size: 3rem;
  }
  .footer-col-index-text {
    margin-top: 0;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 6px;
    margin-top: 6px;
    width: min(calc(100% - 12px), var(--container-max));
  }
  .header-body {
    padding: 0 14px;
    min-height: 56px;
    gap: 10px;
  }
  .brand {
    gap: 10px;
  }
  .brand-mark {
    font-size: 1.1rem;
    padding: 3px 8px;
  }
  .brand-tagline {
    display: none;
  }
  .brand-name {
    font-size: 0.98rem;
  }
  .nav-toggle {
    width: 38px;
    height: 38px;
  }
  .footer-mast {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-trust {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-col-index {
    grid-column: 1;
  }
}

/* ---------- Accessibility ---------- */
@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;
  }
  .live-dot::after {
    animation: none;
  }
  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}