:root {
  --ink-950: #062B33;
  --ink-900: #0B3A45;
  --ink-800: #11525C;
  --gold: #C9A227;
  --gold-bright: #E8C86A;
  --coral: #E4573D;
  --glass-blue: #4EA8C7;
  --porcelain: #F4EFE6;
  --mist: #9BB3B8;
  --wine: #6E2A3C;
  --bg: var(--ink-950);
  --text: var(--porcelain);
  --text-muted: var(--mist);
  --line: rgba(201, 162, 39, 0.38);
  --line-soft: rgba(155, 179, 184, 0.22);
  --surface: rgba(11, 58, 69, 0.78);
  --surface-strong: rgba(17, 82, 92, 0.62);
  --focus: var(--gold-bright);
  --rail-w: 252px;
  --header-h: 76px;
  --content-max: 1440px;
  --page-gutter: clamp(20px, 3.2vw, 52px);
  --nav-gap: 6px;
  --footer-grid-gap: clamp(26px, 4vw, 64px);
  --font-display: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-index: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --text-base: 16.5px;
  --leading: 1.75;
  --radius: 2px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--ink-950);
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
dl,
dd,
address {
  margin: 0;
}

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

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

button {
  padding: 0;
  border: 0;
  background: none;
}

a {
  color: var(--glass-blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

img {
  height: auto;
}

[hidden] {
  display: none !important;
}

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

::selection {
  background: var(--gold);
  color: var(--ink-950);
}

html[data-font="large"] {
  --text-base: 18px;
}

html[data-font="xlarge"] {
  --text-base: 19.5px;
}

html[data-contrast="high"] {
  --text: #FFFFFF;
  --text-muted: #D9E7E9;
  --line: rgba(240, 210, 116, 0.7);
  --line-soft: rgba(217, 231, 233, 0.4);
  --surface: rgba(4, 31, 37, 0.98);
}

html[data-contrast="high"] body {
  background-image: linear-gradient(180deg, #041F25, #062B33);
}

html[data-contrast="high"] .header-top,
html[data-contrast="high"] .site-nav,
html[data-contrast="high"] .settings-panel {
  background: #041F25;
}

html[data-density="compact"] {
  --nav-gap: 0px;
  --footer-grid-gap: clamp(18px, 3vw, 34px);
}

html[data-index="off"] .index-only {
  display: none !important;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: var(--header-h) 0 0 var(--rail-w);
  overflow-x: hidden;
  color: var(--text);
  background-color: var(--ink-950);
  background-image:
    radial-gradient(ellipse at 72% -8%, rgba(78, 168, 199, 0.17), transparent 42%),
    radial-gradient(ellipse at 8% 38%, rgba(110, 42, 60, 0.22), transparent 36%),
    repeating-linear-gradient(112deg, transparent 0 46px, rgba(232, 200, 106, 0.018) 47px, transparent 49px),
    linear-gradient(180deg, #062B33 0%, #062B33 56%, #041F25 100%);
  background-attachment: fixed;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading);
  -webkit-font-smoothing: antialiased;
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

main {
  display: block;
}

/* Skip link */
.skip-link {
  position: fixed;
  top: 10px;
  left: 14px;
  z-index: 140;
  padding: 10px 16px;
  border: 1px solid #FFF3C4;
  background: var(--gold);
  color: var(--ink-950);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.18s var(--ease);
}

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

/* Reading progress */
.reading-progress {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 130;
  height: 2px;
  background: rgba(232, 200, 106, 0.12);
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright), var(--coral));
  box-shadow: 0 0 12px rgba(232, 200, 106, 0.45);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* Header */
.site-header {
  position: relative;
  z-index: 80;
  color: var(--text);
}

.header-top {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(260px, 1fr);
  align-items: center;
  gap: 20px;
  height: var(--header-h);
  padding: 0 clamp(16px, 2.4vw, 32px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(6, 43, 51, 0.98), rgba(11, 58, 69, 0.9));
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px);
}

.header-top::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), var(--glass-blue), transparent);
  opacity: 0.7;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--gold);
  background: linear-gradient(145deg, rgba(201, 162, 39, 0.14), rgba(78, 168, 199, 0.06));
  box-shadow: inset 0 0 18px rgba(201, 162, 39, 0.12), 0 0 22px rgba(201, 162, 39, 0.08);
  color: var(--gold-bright);
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 3px;
}

.brand-name {
  overflow: hidden;
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-sub {
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.28em;
  line-height: 1.2;
}

.batch-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: center;
  min-height: 30px;
  padding: 5px 12px;
  border: 1px solid var(--line-soft);
  background: rgba(17, 82, 92, 0.25);
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.batch-label {
  color: var(--text-muted);
}

.batch-code {
  color: var(--gold-bright);
  letter-spacing: 0.14em;
}

.batch-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 8px rgba(228, 87, 61, 0.8);
}

.batch-state {
  color: var(--glass-blue);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 10px;
  min-width: 0;
}

.header-meta {
  padding-right: 4px;
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

.settings-toggle,
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(201, 162, 39, 0.45);
  background: linear-gradient(145deg, rgba(17, 82, 92, 0.55), rgba(6, 43, 51, 0.55));
  color: var(--text);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.settings-toggle:hover,
.nav-toggle:hover {
  border-color: var(--gold-bright);
  background: rgba(17, 82, 92, 0.78);
  box-shadow: 0 0 24px rgba(201, 162, 39, 0.12);
}

.nav-toggle {
  display: none;
}

.nav-toggle-lines {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle-lines::before {
  top: -5px;
}

.nav-toggle-lines::after {
  top: 5px;
}

/* Settings */
.settings-panel {
  position: fixed;
  top: calc(var(--header-h) + 10px);
  right: clamp(12px, 2.5vw, 32px);
  z-index: 120;
  width: min(350px, calc(100vw - 24px));
  padding: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(11, 58, 69, 0.98), rgba(6, 43, 51, 0.98));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.settings-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 18px;
  left: 18px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-bright), transparent);
}

.settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.settings-title {
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.settings-close {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.settings-close:hover {
  color: var(--gold-bright);
}

.settings-group {
  display: grid;
  gap: 8px;
  margin-top: 15px;
}

.settings-label {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.16em;
}

.segmented {
  display: flex;
  border: 1px solid var(--line-soft);
}

.segmented-btn {
  flex: 1 1 0;
  min-height: 34px;
  padding: 5px 6px;
  background: rgba(6, 43, 51, 0.48);
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.segmented-btn + .segmented-btn {
  border-left: 1px solid var(--line-soft);
}

.segmented-btn[aria-pressed="true"] {
  background: rgba(201, 162, 39, 0.16);
  color: var(--gold-bright);
}

.segmented-btn:hover {
  color: var(--porcelain);
}

.settings-feedback {
  display: block;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--gold-bright);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.settings-feedback:hover {
  color: var(--porcelain);
}

/* Side rail navigation */
.site-nav {
  position: fixed;
  top: var(--header-h);
  bottom: 0;
  left: 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  width: var(--rail-w);
  padding: 24px 16px 20px;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 58, 69, 0.98), rgba(6, 43, 51, 0.98) 68%, #041F25);
  box-shadow: 18px 0 40px rgba(0, 0, 0, 0.16);
}

.site-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(180deg, transparent 0 76px, rgba(201, 162, 39, 0.05) 77px, transparent 79px),
    radial-gradient(ellipse at 20% 10%, rgba(78, 168, 199, 0.11), transparent 42%);
  opacity: 0.8;
}

.nav-head,
.nav-list,
.nav-rail-foot {
  position: relative;
  z-index: 1;
}

.nav-head {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 0 8px 16px;
  border-bottom: 1px solid var(--line-soft);
}

.nav-heading {
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.22em;
}

.nav-count {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.nav-close {
  display: none;
}

.nav-list {
  display: grid;
  gap: var(--nav-gap);
  margin-top: 18px;
}

.nav-list a {
  position: relative;
  display: grid;
  grid-template-columns: 32px 1fr;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 8px 10px;
  border-left: 1px solid transparent;
  color: rgba(244, 239, 230, 0.68);
  text-decoration: none;
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.nav-list a::after {
  content: "";
  position: absolute;
  right: 12px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.18s var(--ease);
}

.nav-list a:hover {
  border-left-color: rgba(201, 162, 39, 0.42);
  background: rgba(17, 82, 92, 0.2);
  color: var(--porcelain);
}

.nav-list a:hover::after {
  opacity: 0.7;
}

.nav-list a[aria-current="page"] {
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.16), rgba(17, 82, 92, 0.12));
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, 0.1);
  color: var(--porcelain);
}

.nav-list a[aria-current="page"]::after {
  opacity: 1;
  box-shadow: 0 0 10px rgba(232, 200, 106, 0.6);
}

.nav-index {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.nav-list a[aria-current="page"] .nav-index {
  color: var(--gold-bright);
}

.nav-label {
  font-size: 14px;
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.nav-rail-foot {
  display: grid;
  gap: 6px;
  margin-top: auto;
  padding: 18px 8px 0;
  border-top: 1px solid var(--line-soft);
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.nav-rail-foot strong {
  color: var(--gold-bright);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.nav-scrim {
  display: none;
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(48px, 8vw, 96px);
  padding: clamp(38px, 5vw, 68px) var(--page-gutter) 26px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 78% 0, rgba(110, 42, 60, 0.22), transparent 44%),
    radial-gradient(ellipse at 8% 100%, rgba(78, 168, 199, 0.08), transparent 40%),
    linear-gradient(180deg, rgba(6, 43, 51, 0.85), #041F25);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  right: var(--page-gutter);
  left: var(--page-gutter);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.8;
}

.footer-inner {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
}

.footer-topline {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.1em;
  text-decoration: none;
}

.footer-brand:hover {
  color: var(--gold-bright);
}

.footer-brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--gold);
  color: var(--gold-bright);
  font-family: var(--font-index);
  font-size: 12px;
}

.footer-batch {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(190px, 0.75fr) minmax(0, 1.55fr) minmax(220px, 0.85fr);
  gap: var(--footer-grid-gap);
}

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

.footer-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.35;
}

.footer-heading-index {
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.12em;
}

.footer-index-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
}

.footer-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(155, 179, 184, 0.12);
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.footer-index-list a:hover {
  border-bottom-color: var(--line);
  color: var(--gold-bright);
}

.footer-link-index {
  min-width: 18px;
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.footer-address {
  display: grid;
  gap: 2px;
}

.footer-contact-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(155, 179, 184, 0.14);
}

.footer-contact-label {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.footer-contact-value {
  color: var(--porcelain);
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.footer-note {
  max-width: 44ch;
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 12.5px;
  line-height: 1.7;
}

.footer-contact-link {
  display: inline-flex;
  margin-top: 14px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line);
  color: var(--gold-bright);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.footer-contact-link:hover {
  border-bottom-color: var(--gold-bright);
  color: var(--porcelain);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 4px 0 16px;
}

.footer-legal-links a {
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
}

.footer-legal-links a:hover {
  color: var(--gold-bright);
}

.footer-sep {
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 10px;
}

.footer-record {
  margin-bottom: 8px;
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.footer-copy {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.footer-baseline {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 9px;
  letter-spacing: 0.16em;
}

/* Shared layout */
.content-shell {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(20px, 2.6vw, 36px);
  align-items: start;
}

.page-main {
  grid-column: span 8;
  min-width: 0;
}

.page-aside {
  grid-column: span 4;
  min-width: 0;
}

/* Shared typography */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.24em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
  opacity: 0.7;
}

.display-title {
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: clamp(56px, 7.4vw, 92px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.98;
  text-shadow: 0 0 30px rgba(201, 162, 39, 0.18);
  -webkit-text-stroke: 0.45px rgba(232, 200, 106, 0.38);
}

.section-title {
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: clamp(28px, 3.2vw, 34px);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.lede {
  max-width: 42em;
  color: rgba(244, 239, 230, 0.82);
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.75;
}

.prose {
  max-width: 42em;
  color: rgba(244, 239, 230, 0.82);
}

.prose p + p {
  margin-top: 1em;
}

.prose a {
  color: var(--glass-blue);
}

.prose strong {
  color: var(--porcelain);
  font-weight: 600;
}

/* Shared actions */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--line);
  background: rgba(17, 82, 92, 0.45);
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.btn:hover {
  border-color: var(--gold-bright);
  background: rgba(17, 82, 92, 0.7);
  color: var(--porcelain);
  transform: translateY(-1px);
}

.btn--gold {
  border-color: var(--gold-bright);
  background: linear-gradient(135deg, var(--gold), var(--gold-bright));
  color: var(--ink-950);
  font-weight: 600;
}

.btn--gold:hover {
  background: linear-gradient(135deg, var(--gold-bright), #F3D987);
  color: #041F25;
  box-shadow: 0 8px 26px rgba(201, 162, 39, 0.24);
}

.btn--ghost {
  border-color: rgba(155, 179, 184, 0.4);
  background: transparent;
  color: var(--text-muted);
}

.btn--coral {
  border-color: var(--coral);
  background: var(--coral);
  color: #FFFFFF;
}

.btn--coral:hover {
  background: #F06A51;
  border-color: #F06A51;
}

/* Shared status and panels */
.index-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 22px;
  padding: 0 7px;
  border: 1px solid var(--line);
  background: rgba(201, 162, 39, 0.06);
  color: var(--gold-bright);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.1em;
  line-height: 1;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.status-line strong {
  color: var(--gold-bright);
  font-weight: 500;
}

.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line-soft);
  background: linear-gradient(145deg, rgba(11, 58, 69, 0.82), rgba(6, 43, 51, 0.92));
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}

.panel--glass {
  border-color: var(--line);
  background: linear-gradient(145deg, rgba(17, 82, 92, 0.55), rgba(11, 58, 69, 0.32));
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.panel-title {
  color: var(--porcelain);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.panel-meta {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* Shared filters and records */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  background: rgba(17, 82, 92, 0.25);
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.filter-chip[aria-pressed="true"] {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.1);
  color: var(--gold-bright);
}

.filter-chip:hover {
  border-color: var(--gold-bright);
  color: var(--porcelain);
}

.data-list {
  display: grid;
}

.data-row {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid rgba(155, 179, 184, 0.12);
}

.data-row-index {
  color: var(--gold);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.data-row-main {
  color: var(--text);
  min-width: 0;
}

.data-row-meta {
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.04em;
}

/* Shared media */
.media-frame {
  position: relative;
  display: block;
  min-height: 180px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(17, 82, 92, 0.75), rgba(6, 43, 51, 0.9));
  box-shadow: var(--shadow);
  isolation: isolate;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(232, 200, 106, 0.08);
  background: linear-gradient(120deg, rgba(244, 239, 230, 0.07), transparent 32%, transparent 68%, rgba(201, 162, 39, 0.08));
}

.media-frame__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05) brightness(0.82);
}

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

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

.media-caption {
  margin-top: 10px;
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* Shared breadcrumbs */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-index);
  font-size: 10px;
  letter-spacing: 0.08em;
}

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

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

.breadcrumbs a:hover {
  color: var(--gold-bright);
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--gold);
  opacity: 0.65;
}

[data-section-link][data-active="true"] {
  color: var(--gold-bright);
}

[data-section-link][aria-current="location"] {
  border-color: var(--gold);
}

/* Mobile and tablet */
@media (max-width: 1120px) {
  :root {
    --rail-w: 224px;
  }

  .header-top {
    grid-template-columns: minmax(220px, 1fr) auto minmax(180px, 1fr);
  }

  .header-meta {
    display: none;
  }
}

@media (max-width: 960px) {
  :root {
    --rail-w: 0px;
    --header-h: 66px;
    --page-gutter: clamp(16px, 4vw, 30px);
  }

  body {
    padding: var(--header-h) 0 0 0;
  }

  .header-top {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    padding: 0 16px;
  }

  .batch-chip {
    display: none;
  }

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

  .site-nav {
    top: 0;
    bottom: 0;
    z-index: 100;
    width: min(340px, 86vw);
    padding: 22px 18px max(20px, env(safe-area-inset-bottom));
    transform: translateX(-102%);
    visibility: hidden;
    transition: transform 0.24s var(--ease), visibility 0.24s;
    box-shadow: 24px 0 80px rgba(0, 0, 0, 0.5);
  }

  .site-nav[data-open="true"] {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--line-soft);
    color: var(--text);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
  }

  .nav-close:hover {
    border-color: var(--gold-bright);
    color: var(--gold-bright);
  }

  .nav-scrim {
    position: fixed;
    inset: 0;
    z-index: 95;
    display: block;
    background: rgba(2, 18, 22, 0.72);
    backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s var(--ease), visibility 0.2s;
    cursor: pointer;
  }

  .nav-scrim[data-open="true"] {
    opacity: 1;
    visibility: visible;
  }

  html.is-nav-open,
  html.is-nav-open body {
    overflow: hidden;
  }

  .settings-panel {
    top: calc(var(--header-h) + 8px);
    right: 10px;
  }

  .page-main,
  .page-aside {
    grid-column: span 12;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  }

  .footer-legal {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-legal {
    grid-column: auto;
  }

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

  .footer-topline {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .footer-baseline {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 18px;
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-sub {
    display: none;
  }

  .header-actions {
    gap: 8px;
  }

  .settings-toggle,
  .nav-toggle {
    min-height: 36px;
    padding: 0 10px;
  }

  .nav-toggle-label {
    display: none;
  }

  .settings-panel {
    right: 8px;
    width: calc(100vw - 16px);
  }

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

  .footer-contact-item {
    grid-template-columns: 68px minmax(0, 1fr);
  }

  .data-row {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .data-row-meta {
    grid-column: 2;
  }

  .display-title {
    font-size: clamp(48px, 15vw, 68px);
  }
}

@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;
  }

  .btn:hover {
    transform: none;
  }

  .reading-progress span {
    box-shadow: none;
  }
}