/* =========================================================
   如意主页 · 共享样式 /assets/site.css
   墨青 + 宣纸白承载阅读；朱砂红承担状态；鎏金只出现在墨青底；
   青瓷绿只做路径点。长卷之外，所有组件共享同一套编号气质。
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

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

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

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

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

button { background: none; border: 0; }

a { color: inherit; }

[hidden] { display: none !important; }

/* ---------- 2. Tokens ---------- */
:root {
  --paper: #F7F3EA;
  --white: #FFFDF8;
  --ink: #14201F;
  --ink-soft: #33413F;
  --cinnabar: #B23A2E;
  --cinnabar-deep: #7E241C;
  --gold: #C7A25A;
  --celadon: #6E8F7E;
  --mist: #D9D2C3;

  --line: rgba(20, 32, 31, 0.14);
  --line-strong: rgba(20, 32, 31, 0.26);
  --line-light: rgba(247, 243, 234, 0.16);

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --header-h: 64px;
  --wrap: 1440px;
  --gutter: 20px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 3. Base ---------- */
body {
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(217, 210, 195, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 210, 195, 0.22) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: -1px -1px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

main { display: block; }

#main-content { padding-top: var(--header-h); }
#main-content.main-flush { padding-top: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

h1 { font-size: clamp(36px, 6vw, 72px); }
h2 { font-size: clamp(24px, 3vw, 40px); }
h3 { font-size: clamp(19px, 2vw, 24px); }

p { text-wrap: pretty; }

strong, b { font-weight: 700; }

code, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

::selection {
  background: var(--cinnabar);
  color: var(--white);
}

:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
  border-radius: 1px;
}

.site-header.is-scrolled :focus-visible,
.site-footer :focus-visible,
.toast :focus-visible {
  outline-color: var(--gold);
}

/* ---------- 4. 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;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 210;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid var(--gold);
  transform: translateY(-180%);
  transition: transform 180ms var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.container {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
}

.rule--gold {
  background: linear-gradient(90deg, var(--gold), rgba(199, 162, 90, 0));
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cinnabar);
}

.chapter-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cinnabar);
}
.chapter-label::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: currentColor;
  opacity: 0.3;
}

.vertical-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 12px;
  letter-spacing: 0.3em;
  line-height: 1.9;
  color: var(--ink-soft);
  opacity: 0.72;
}

.lede {
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 46ch;
}

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2,
.prose h3 { color: var(--ink); }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.8em; }
.prose ul > li {
  position: relative;
  padding-left: 1.5em;
  margin-top: 0.55em;
}
.prose ul > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.92em;
  width: 8px;
  height: 1px;
  background: var(--cinnabar);
}
.prose ol {
  list-style: decimal;
  padding-left: 1.6em;
}
.prose ol > li { margin-top: 0.55em; }
.prose ol > li::marker {
  font-family: var(--font-mono);
  color: var(--cinnabar);
}
.prose a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--cinnabar);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.prose a:hover { color: var(--cinnabar-deep); }
.prose blockquote {
  border-left: 2px solid var(--gold);
  padding-left: 20px;
  font-family: var(--font-display);
  color: var(--ink);
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.05em;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 180ms var(--ease),
    color 180ms var(--ease),
    border-color 180ms var(--ease);
}

.btn--solid {
  background: var(--cinnabar);
  color: var(--white);
  border-color: var(--cinnabar);
}
.btn--solid:hover,
.btn--solid:focus-visible {
  background: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}

.btn--line {
  background: transparent;
  color: inherit;
  border-color: var(--line-strong);
}
.btn--line:hover,
.btn--line:focus-visible {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.site-header.is-scrolled .btn--line:hover,
.site-header.is-scrolled .btn--line:focus-visible,
.site-footer .btn--line:hover,
.site-footer .btn--line:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--block {
  display: flex;
  width: 100%;
}

/* ---------- 6. Breadcrumbs ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumbs li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumbs li + li::before {
  content: "/";
  color: var(--mist);
}
.breadcrumbs a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.breadcrumbs a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}
.breadcrumb-current { color: var(--cinnabar); }

/* ---------- 7. Grid & media ---------- */
.grid--12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}
.span-4,
.span-6,
.span-8,
.span-12 { grid-column: span 12 / span 12; }

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(217, 210, 195, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 210, 195, 0.4) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.55;
}
.media-frame img,
.media-frame svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--portrait { aspect-ratio: 4 / 5; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  opacity: 0.8;
}

/* ---------- 8. Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 200;
  max-width: calc(100vw - 32px);
  padding: 11px 22px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--gold);
  border-radius: 2px;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 14px);
  pointer-events: none;
  transition:
    opacity 200ms var(--ease),
    transform 200ms var(--ease),
    visibility 200ms var(--ease);
}
.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ---------- 9. Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  height: var(--header-h);
  color: var(--ink);
  background: rgba(247, 243, 234, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(125%);
  backdrop-filter: blur(14px) saturate(125%);
  border-bottom: 1px solid var(--line);
  transition:
    background-color 240ms var(--ease),
    color 240ms var(--ease),
    border-color 240ms var(--ease),
    height 240ms var(--ease);
}

.site-header.is-scrolled {
  background: var(--ink);
  color: var(--paper);
  border-bottom-color: rgba(199, 162, 90, 0.38);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-right: auto;
  text-decoration: none;
  color: inherit;
}

.brand-seal {
  display: grid;
  place-items: center;
  flex: none;
  width: 38px;
  height: 38px;
  background: var(--cinnabar);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(255, 253, 248, 0.4);
  transition: background-color 200ms var(--ease);
}
.brand:hover .brand-seal { background: var(--cinnabar-deep); }

.brand-text {
  display: none;
  flex-direction: column;
  gap: 1px;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.3;
}
.brand-desc {
  display: none;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  opacity: 0.85;
  transition: color 200ms var(--ease);
}
.site-header.is-scrolled .brand-desc {
  color: rgba(247, 243, 234, 0.66);
  opacity: 1;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: inherit;
  cursor: pointer;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}
.nav-toggle:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.site-header.is-scrolled .nav-toggle { border-color: rgba(247, 243, 234, 0.35); }
.site-header.is-scrolled .nav-toggle:hover { border-color: var(--gold); color: var(--gold); }

.nav-toggle-bars {
  display: grid;
  gap: 5px;
  width: 20px;
}
.nav-toggle-bars i {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform 220ms var(--ease), opacity 160ms var(--ease);
}
.site-header[data-open="true"] .nav-toggle-bars i:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-header[data-open="true"] .nav-toggle-bars i:nth-child(2) {
  opacity: 0;
}
.site-header[data-open="true"] .nav-toggle-bars i:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.header-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 6px var(--gutter) 26px;
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid rgba(199, 162, 90, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition:
    opacity 200ms var(--ease),
    transform 200ms var(--ease),
    visibility 200ms var(--ease);
}
.site-header[data-open="true"] .header-nav {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-list {
  display: flex;
  flex-direction: column;
}

.nav-link {
  position: relative;
  display: block;
  padding: 14px 4px 14px 18px;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: rgba(247, 243, 234, 0.86);
  border-bottom: 1px solid rgba(247, 243, 234, 0.1);
  transition: color 180ms var(--ease);
}
.nav-link::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--cinnabar);
  transform: translateY(-50%);
  transition: height 200ms var(--ease), background-color 200ms var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 4px;
  bottom: 8px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms var(--ease);
}
.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--gold);
  font-weight: 600;
}
.nav-link[aria-current="page"]::before {
  height: 15px;
  background: var(--cinnabar);
}

.nav-foot {
  display: grid;
  gap: 14px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid rgba(199, 162, 90, 0.25);
}
.nav-foot-version {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 14px;
}

.header-version {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 4px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--ink-soft);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}
.site-header.is-scrolled .header-version {
  color: var(--gold);
  border-color: rgba(199, 162, 90, 0.45);
}

/* ---------- 10. Footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid rgba(199, 162, 90, 0.35);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(247, 243, 234, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 243, 234, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), transparent 78%);
}
.site-footer::after {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(199, 162, 90, 0.22);
  box-shadow: 0 0 0 56px rgba(199, 162, 90, 0.05);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 52px var(--gutter) 0;
}

.footer-top {
  display: grid;
  gap: 38px;
}

.footer-seal {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--cinnabar);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(255, 253, 248, 0.38);
}

.footer-brand-name {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1.3;
  color: var(--paper);
}

.footer-summary {
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.95;
  color: rgba(247, 243, 234, 0.72);
}

.footer-stamp {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.footer-col-title {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(199, 162, 90, 0.3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gold);
}

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

.footer-link {
  position: relative;
  display: inline-block;
  width: fit-content;
  padding: 7px 0;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: rgba(247, 243, 234, 0.82);
  transition: color 180ms var(--ease);
}
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms var(--ease);
}
.footer-link:hover,
.footer-link:focus-visible { color: var(--paper); }
.footer-link:hover::after,
.footer-link:focus-visible::after { transform: scaleX(1); }

.footer-contact {
  display: grid;
  gap: 15px;
}

.footer-contact-item {
  display: grid;
  justify-items: start;
  gap: 3px;
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: rgba(199, 162, 90, 0.85);
}

.footer-contact-text {
  font-size: 15px;
  color: rgba(247, 243, 234, 0.86);
}

.copy-btn {
  padding: 0;
  border: 0;
  border-bottom: 1px dashed rgba(247, 243, 234, 0.35);
  background: none;
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--paper);
  cursor: pointer;
  text-align: left;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.copy-btn::after {
  content: "复制";
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--gold);
  opacity: 0.7;
  transition: opacity 160ms var(--ease);
}
.copy-btn:hover,
.copy-btn:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.copy-btn:hover::after,
.copy-btn:focus-visible::after { opacity: 1; }

.footer-contact-note {
  margin-top: 18px;
  max-width: 30ch;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(247, 243, 234, 0.5);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 28px;
  margin-top: 46px;
  padding: 22px 0 30px;
  border-top: 1px solid var(--line-light);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}

.footer-legal-link {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: rgba(247, 243, 234, 0.62);
  transition: color 160ms var(--ease);
}
.footer-legal-link:hover,
.footer-legal-link:focus-visible { color: var(--paper); }

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(247, 243, 234, 0.45);
}

/* ---------- 11. 索引轴状态（页面阶段使用） ---------- */
[data-spy-link] {
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
[data-spy-link][aria-current="true"] {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

/* ---------- 12. Breakpoints ---------- */
@media (min-width: 560px) {
  .brand-text { display: flex; }
  .brand-desc { display: block; }
}

@media (min-width: 720px) {
  :root { --gutter: 24px; }
  .footer-inner { padding-top: 64px; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (min-width: 960px) {
  :root {
    --header-h: 88px;
    --gutter: 32px;
  }

  .container { padding: 0 40px; }

  .site-header.is-scrolled { height: 74px; }

  .header-inner { gap: 22px; padding: 0 40px; }

  .nav-toggle { display: none; }

  .header-nav {
    position: static;
    max-height: none;
    overflow: visible;
    padding: 0;
    background: none;
    color: inherit;
    border-top: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 2px;
  }

  .nav-link {
    padding: 10px 12px 10px 14px;
    font-size: 14px;
    letter-spacing: 0.06em;
    color: inherit;
    border-bottom: 0;
  }
  .nav-link::after {
    left: 14px;
    right: 12px;
    bottom: 4px;
    opacity: 0.35;
  }
  .nav-link[aria-current="page"] { color: var(--cinnabar); }
  .site-header.is-scrolled .nav-link[aria-current="page"] { color: var(--gold); }

  .nav-foot { display: none; }

  .header-actions { display: flex; }

  .footer-inner { padding: 76px 40px 0; }
  .footer-top {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.72fr) minmax(0, 0.72fr) minmax(0, 1.15fr);
    gap: 48px;
  }
  .footer-brand { grid-column: auto; }
  .footer-summary { font-size: 15px; }
  .footer-brand-name { font-size: 27px; }

  .span-4 { grid-column: span 4 / span 4; }
  .span-6 { grid-column: span 6 / span 6; }
  .span-8 { grid-column: span 8 / span 8; }
}

@media (min-width: 1200px) {
  :root { --header-h: 92px; }
  .site-header.is-scrolled { height: 76px; }
  .nav-link { padding: 10px 14px 10px 16px; font-size: 14.5px; }
  .nav-link::after { left: 16px; right: 14px; }
}

/* ---------- 13. 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-behavior: auto !important;
  }
  .scroll-progress span { transition: none; }
}