:root {
  --color-cream: #FAF6EE;
  --color-forest: #0B3B2D;
  --color-pine: #1A5B4A;
  --color-gold: #C9A227;
  --color-gold-soft: #F2E6C3;
  --color-red: #C33B2F;
  --color-ink: #1F2A24;
  --color-charcoal: #5C6660;
  --color-white: #FFFFFF;
  --color-border: rgba(11, 59, 45, 0.2);

  --font-display: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-body: "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-mono: "SF Mono", "Roboto Mono", "Cascadia Mono", Consolas, "Courier New", monospace;

  --content-w: 1320px;
  --content-w-narrow: 900px;
  --content-w-wide: 1580px;
  --gutter: clamp(16px, 3vw, 40px);

  --header-strip-h: 38px;
  --header-main-h: 76px;
  --header-frame-h: calc(var(--header-strip-h) + var(--header-main-h));

  --radius-sm: 3px;
  --radius-md: 6px;
  --shadow-sm: 0 1px 2px rgba(15, 35, 25, 0.06), 0 2px 10px rgba(15, 35, 25, 0.05);
  --shadow-md: 0 4px 16px rgba(15, 35, 25, 0.1), 0 10px 40px rgba(15, 35, 25, 0.08);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 0.2s;
  --dur: 0.3s;
}

[data-theme="dark"] {
  --color-cream: #0F1914;
  --color-forest: #061F16;
  --color-pine: #14513E;
  --color-gold: #DFBA38;
  --color-gold-soft: #28382C;
  --color-red: #DB4433;
  --color-ink: #E4E8E1;
  --color-charcoal: #A7B0A8;
  --color-white: #14231D;
  --color-border: rgba(201, 162, 39, 0.22);
}

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

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink);
  background-color: var(--color-cream);
  transition: background-color var(--dur) ease, color var(--dur) ease;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.25;
  margin-bottom: 0.4em;
}

h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.12;
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

p {
  margin-bottom: 1em;
}

strong {
  font-weight: 700;
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--color-charcoal);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.section-tag::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--color-gold);
}

.main-content,
#main-content {
  display: block;
  width: 100%;
  max-width: var(--content-w);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 64px) var(--gutter) clamp(56px, 6vw, 96px);
  flex: 1;
  scroll-margin-top: calc(var(--header-frame-h) + 20px);
}

.main-content--narrow {
  max-width: var(--content-w-narrow);
}

.main-content--wide {
  max-width: var(--content-w-wide);
}

.layout-asym {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(28px, 4vw, 68px);
  align-items: start;
}

.layout-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: clamp(24px, 3vw, 48px);
  align-items: start;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2.5vw, 32px);
}

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

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

.grid__col-3 { grid-column: span 3; }
.grid__col-4 { grid-column: span 4; }
.grid__col-5 { grid-column: span 5; }
.grid__col-6 { grid-column: span 6; }
.grid__col-7 { grid-column: span 7; }
.grid__col-8 { grid-column: span 8; }
.grid__col-9 { grid-column: span 9; }
.grid__col-12 { grid-column: 1 / -1; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 26px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-gold);
  color: var(--color-forest);
}

.btn--primary:hover {
  background: var(--color-gold-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn--secondary {
  background: var(--color-forest);
  color: var(--color-cream);
}

.btn--secondary:hover {
  background: var(--color-pine);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-forest);
  color: var(--color-forest);
}

.btn--outline:hover {
  background: var(--color-forest);
  color: var(--color-cream);
}

.btn--gold-soft {
  background: var(--color-gold-soft);
  border-color: rgba(201, 162, 39, 0.32);
  color: var(--color-ink);
}

.btn--gold-soft:hover {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: var(--color-forest);
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.card--forest {
  background: var(--color-forest);
  color: var(--color-cream);
  border-color: transparent;
}

.card--pine {
  background: var(--color-pine);
  color: var(--color-cream);
  border-color: transparent;
}

.card--gold-soft {
  background: var(--color-gold-soft);
  border-color: rgba(201, 162, 39, 0.3);
}

.card--flat {
  box-shadow: none;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-ink);
}

.card--forest .card__title,
.card--pine .card__title {
  color: var(--color-cream);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  background: var(--color-gold-soft);
  color: var(--color-forest);
  border: 1px solid rgba(201, 162, 39, 0.3);
  white-space: nowrap;
}

.badge--live {
  background: var(--color-red);
  color: var(--color-white);
  border-color: transparent;
}

.badge--pine {
  background: var(--color-pine);
  color: var(--color-cream);
  border-color: transparent;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
  background: linear-gradient(90deg, var(--color-gold-soft), transparent);
  border-left: 3px solid var(--color-gold);
}

.breadcrumbs__link {
  color: var(--color-forest);
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
  transition: border-color 0.2s;
}

.breadcrumbs__link:hover {
  border-bottom-color: var(--color-gold);
}

.breadcrumbs__sep {
  color: rgba(92, 102, 96, 0.55);
  margin: 0 2px;
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-charcoal);
  border-bottom: 0;
}

.archive-note {
  background: var(--color-gold-soft);
  border-left: 3px solid var(--color-gold);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-ink);
}

.archive-note--alert {
  background: rgba(195, 59, 47, 0.08);
  border-left-color: var(--color-red);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.data-table thead th {
  background: var(--color-pine);
  color: var(--color-cream);
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  padding: 10px 14px;
}

.data-table tbody td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:nth-child(even) {
  background: rgba(11, 59, 45, 0.025);
}

[data-theme="dark"] .data-table tbody tr:nth-child(even) {
  background: rgba(201, 162, 39, 0.05);
}

.figure {
  position: relative;
  background: var(--color-gold-soft);
  padding-top: 62.5%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.figure--wide { padding-top: 42.85%; }
.figure--square { padding-top: 100%; }
.figure--portrait { padding-top: 120%; }

.figure__media,
.figure img,
.figure svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 6px 12px;
  background: rgba(6, 31, 22, 0.72);
  color: var(--color-cream);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 0;
  z-index: 3000;
  padding: 10px 24px;
  background: var(--color-forest);
  color: var(--color-cream);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius-md) 0;
  transition: top 0.3s var(--ease-out);
}

.skip-link:focus-visible {
  top: 0;
  outline: none;
}

.header-frame {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-cream);
  transition: background-color var(--dur) ease;
}

.top-strip {
  height: var(--header-strip-h);
  background: var(--color-forest);
  color: var(--color-cream);
  position: relative;
  z-index: 2;
}

.top-strip__inner {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-strip__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-cream);
  min-width: 0;
}

.top-strip__emblem {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background: var(--color-gold);
  color: var(--color-forest);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.6rem;
  line-height: 1;
  border-radius: 2px;
  letter-spacing: 0.02em;
}

.top-strip__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--color-cream);
  white-space: nowrap;
}

.top-strip__actions {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  min-width: 0;
}

.top-strip__link {
  color: rgba(250, 246, 238, 0.7);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  white-space: nowrap;
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.top-strip__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}

.top-strip__link:hover {
  color: var(--color-gold);
}

.top-strip__link:hover::after {
  transform: scaleX(1);
}

.site-header {
  height: var(--header-main-h);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-cream);
  transition: background-color var(--dur) ease, border-color var(--dur) ease;
  position: relative;
  z-index: 1;
}

.site-header__inner {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
}

.site-header__frame-mark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  padding-right: 12px;
  border-right: 1px solid var(--color-border);
}

.site-header__frame-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-red);
  flex-shrink: 0;
  animation: dotPulse 2.4s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.site-header__frame-text {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--color-charcoal);
  white-space: nowrap;
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.3vw, 22px);
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  display: block;
  position: relative;
  padding: 8px 4px 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  color: var(--color-ink);
  white-space: nowrap;
  transition: color 0.2s;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-forest);
}

.site-nav__link:hover::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.theme-toggle:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
  background: var(--color-gold-soft);
}

.theme-toggle__icon {
  width: 18px;
  height: 18px;
}

.theme-toggle__icon--sun {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--moon {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  display: block;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5.5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.2s;
}

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

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out), opacity 0.25s, background-color 0.2s;
}

.nav-toggle:hover .nav-toggle__bar {
  background: var(--color-gold);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7.5px) 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(-7.5px) rotate(-45deg);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-red));
  z-index: 20;
  pointer-events: none;
}

.site-footer {
  margin-top: auto;
  background: var(--color-forest);
  color: rgba(250, 246, 238, 0.82);
  border-top: 3px solid var(--color-gold);
  font-size: 0.88rem;
  line-height: 1.65;
  transition: background-color var(--dur) ease;
}

.site-footer__inner {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 56px var(--gutter) 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 1.3fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.site-footer__col {
  min-width: 0;
}

.site-footer__col--brand {
  display: flex;
  flex-direction: column;
}

.site-footer__col--links,
.site-footer__col--contact {
  display: flex;
  flex-direction: column;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-cream);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.site-footer__brand a {
  color: inherit;
  transition: color 0.2s;
}

.site-footer__brand a:hover {
  color: var(--color-gold);
}

.site-footer__tagline {
  font-size: 0.92rem;
  color: rgba(250, 246, 238, 0.62);
  max-width: 34ch;
  margin: 0;
}

.site-footer__archive {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--color-gold);
}

.site-footer__stats {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(250, 246, 238, 0.14);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.7;
  color: rgba(250, 246, 238, 0.55);
}

.site-footer__stats [data-stat] {
  color: var(--color-gold);
  font-weight: 700;
}

.site-footer__heading {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gold);
  margin: 0 0 14px;
  letter-spacing: 0.08em;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(201, 162, 39, 0.28);
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.site-footer__list--condensed {
  gap: 7px;
}

.site-footer__list a {
  color: rgba(250, 246, 238, 0.82);
  display: inline-block;
  transition: color 0.2s;
}

.site-footer__list a:hover {
  color: var(--color-gold);
}

.site-footer__contact-item {
  display: flex;
  gap: 10px;
  line-height: 1.55;
}

.site-footer__label {
  flex-shrink: 0;
  min-width: 64px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  padding-top: 2px;
}

.site-footer__value {
  color: rgba(250, 246, 238, 0.75);
  word-break: break-word;
}

.site-footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(250, 246, 238, 0.14);
  align-items: center;
}

.site-footer__legal-links a {
  font-size: 0.8rem;
  color: var(--color-cream);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(201, 162, 39, 0.45);
  transition: color 0.2s, text-decoration-color 0.2s;
}

.site-footer__legal-links a:hover {
  color: var(--color-gold);
  text-decoration-color: var(--color-gold);
}

.site-footer__link-sep {
  color: rgba(201, 162, 39, 0.4);
}

.site-footer__bottom {
  border-top: 1px solid rgba(250, 246, 238, 0.12);
  padding: 16px var(--gutter);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: rgba(250, 246, 238, 0.48);
}

.site-footer__bottom-inner {
  max-width: var(--content-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  z-index: 900;
  display: grid;
  place-items: center;
  border: 1px solid rgba(201, 162, 39, 0.7);
  border-radius: 50%;
  background: var(--color-forest);
  color: var(--color-gold);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: all 0.3s var(--ease-out);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-gold);
  color: var(--color-forest);
  border-color: var(--color-gold);
}

.back-to-top__icon {
  width: 20px;
  height: 20px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

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

[data-theme="dark"] .site-header__frame-text {
  color: var(--color-charcoal);
}

[data-theme="dark"] .site-nav__link[aria-current="page"] {
  color: var(--color-gold);
}

[data-theme="dark"] .btn--outline {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

[data-theme="dark"] .btn--outline:hover {
  background: var(--color-gold);
  color: var(--color-forest);
}

[data-theme="dark"] .site-header {
  border-bottom-color: var(--color-border);
}

@media (max-width: 960px) {
  :root {
    --header-strip-h: 34px;
    --header-main-h: 60px;
  }

  .site-header__frame-mark {
    display: none;
  }

  .site-header__inner {
    justify-content: flex-end;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    background: var(--color-cream);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 18px 30px rgba(11, 59, 45, 0.1);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height 0.35s var(--ease-out), visibility 0.35s;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--header-frame-h));
    overflow-y: auto;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 14px;
  }

  .site-nav__link {
    display: block;
    padding: 13px var(--gutter) 11px;
    font-size: 1.08rem;
    border-bottom: 1px solid var(--color-border);
    white-space: normal;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link[aria-current="page"] {
    background: var(--color-gold-soft);
    color: var(--color-forest);
    border-left: 3px solid var(--color-gold);
    padding-left: calc(var(--gutter) - 3px);
  }

  .nav-toggle {
    display: flex;
  }

  .layout-asym,
  .layout-sidebar {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: repeat(6, 1fr);
  }

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

  .grid__col-3,
  .grid__col-4,
  .grid__col-5,
  .grid__col-6,
  .grid__col-7,
  .grid__col-8,
  .grid__col-9 {
    grid-column: span 6;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    padding: 40px var(--gutter) 32px;
    gap: 32px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 620px) {
  .top-strip__emblem {
    width: 20px;
    height: 20px;
    font-size: 0.52rem;
  }

  .top-strip__name {
    font-size: 0.76rem;
  }

  .top-strip__actions {
    gap: 10px;
  }

  .top-strip__link {
    font-size: 0.68rem;
  }

  .theme-toggle {
    width: 38px;
    height: 38px;
  }

  .theme-toggle__icon {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 420px) {
  .top-strip__name {
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (max-width: 320px) {
  .top-strip__actions {
    gap: 6px;
  }

  .top-strip__link {
    font-size: 0.64rem;
  }
}

@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;
    transition-delay: 0s !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}