/* ==========================================================================
   江南看台 · 共享站点样式  /assets/site.css
   深墨底 + 宣纸白双色体系 / 框架式导航 / 等宽数据标签
   ========================================================================== */

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

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

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

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

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

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

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

table { border-collapse: collapse; }

[hidden] { display: none !important; }

/* ---------- 2. Design tokens ---------- */
:root {
  --c-ink: #0B1B1E;
  --c-ink-2: #122B2F;
  --c-water: #29424A;
  --c-paper: #F4F2EC;
  --c-mist: #C7D3D1;
  --c-graphite: #1B2A2D;
  --c-signal: #FF6A2B;
  --c-signal-hi: #FFA36B;
  --c-data: #4DF0A9;
  --c-jade: #0F8A66;
  --c-signal-deep: #B23A0B;

  --font-display: "Archivo Narrow", "Oswald", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --rail-w: 88px;
  --bar-h: 64px;
  --maxw: 1240px;
  --gutter: clamp(18px, 4vw, 52px);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. Base ---------- */
html, body { min-height: 100%; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  color: var(--c-graphite);
  background-color: var(--c-paper);
  padding-top: var(--bar-h);
  padding-left: var(--rail-w);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--c-signal);
  color: #1A0A03;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: .01em;
  color: var(--c-graphite);
}

p { max-width: 68ch; }

strong { font-weight: 700; }

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

#main-content {
  display: block;
  scroll-margin-top: calc(var(--bar-h) + 24px);
}
#main-content:focus { outline: none; }
#main-content:focus-visible { outline: 3px solid var(--c-signal); }

/* ---------- 4. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 12px 20px;
  background: var(--c-ink);
  color: var(--c-paper);
  border: 1px solid var(--c-signal);
  border-radius: 2px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  transform: translateY(-180%);
  transition: transform .22s var(--ease);
}
.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 5. Header 顶框 ---------- */
.site-header {
  position: relative;
  z-index: 90;
}

.header-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--bar-h);
  z-index: 80;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  padding: 0 var(--gutter);
  background: rgba(11, 27, 30, .88);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid rgba(199, 211, 209, .16);
  color: var(--c-paper);
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.7vw, 21px);
  letter-spacing: .18em;
  color: var(--c-paper);
  white-space: nowrap;
  transition: color .22s var(--ease);
}
.brand:hover { color: var(--c-signal-hi); }

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: .14em;
  color: rgba(199, 211, 209, .72);
  white-space: nowrap;
  max-width: none;
}

.header-meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(199, 211, 209, .74);
  white-space: nowrap;
  max-width: none;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(199, 211, 209, .34);
  border-radius: 2px;
  color: var(--c-paper);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}
.nav-toggle:hover {
  border-color: var(--c-signal);
  background: rgba(255, 106, 43, .12);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background-color .2s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform .24s var(--ease), top .24s var(--ease);
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after  { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { top: 0; transform: rotate(-45deg); }

.nav-toggle__text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
}

/* 顶部滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-signal) 0%, var(--c-signal-hi) 42%, var(--c-data) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .12s linear;
  pointer-events: none;
}

/* ---------- 6. Left rail navigation 左框 ---------- */
.site-nav {
  position: fixed;
  top: var(--bar-h);
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 70;
  display: flex;
  flex-direction: column;
  padding: 26px 0 26px;
  overflow-y: auto;
  overflow-x: hidden;
  background: linear-gradient(180deg, #0B1B1E 0%, #122B2F 68%, #0B1B1E 100%);
  border-right: 1px solid rgba(199, 211, 209, .14);
  color: var(--c-paper);
  scrollbar-width: thin;
  scrollbar-color: rgba(199, 211, 209, .3) transparent;
}
.site-nav::-webkit-scrollbar { width: 3px; }
.site-nav::-webkit-scrollbar-thumb { background: rgba(199, 211, 209, .3); }

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
}

.site-nav__link {
  display: block;
  padding: 11px 6px 11px 9px;
  border-left: 3px solid transparent;
  text-align: center;
  color: rgba(199, 211, 209, .8);
  transition: color .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease);
}
.site-nav__link:hover {
  color: var(--c-paper);
  background: rgba(77, 240, 169, .09);
}
.site-nav__link[aria-current="page"] {
  color: var(--c-paper);
  background: rgba(255, 106, 43, .14);
  border-left-color: var(--c-signal);
}

.site-nav__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .1em;
  line-height: 1;
  margin-bottom: 5px;
  color: rgba(199, 211, 209, .48);
}
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--c-signal-hi); }

.site-nav__label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .08em;
  line-height: 1.35;
}

/* ---------- 7. Floating entry 悬浮入口条 ---------- */
.float-entry {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 85;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px 13px 16px;
  border-radius: 999px;
  background: var(--c-signal);
  color: #1A0A03;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
  box-shadow: 0 12px 32px rgba(255, 106, 43, .3);
  transition: background-color .26s var(--ease), transform .26s var(--ease), box-shadow .26s var(--ease);
}
.float-entry:hover,
.float-entry:focus-visible {
  background: var(--c-signal-hi);
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(255, 106, 43, .42);
}

.float-entry__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-ink);
  box-shadow: 0 0 0 4px rgba(11, 27, 30, .18);
  flex: none;
}

.float-entry__label { white-space: nowrap; }

.float-entry__note {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  padding: 8px 12px;
  border-radius: 2px;
  background: rgba(11, 27, 30, .95);
  border: 1px solid rgba(199, 211, 209, .2);
  color: var(--c-mist);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .08em;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity .24s var(--ease), transform .24s var(--ease);
}
.float-entry:hover .float-entry__note,
.float-entry:focus-visible .float-entry__note {
  opacity: 1;
  transform: translateY(0);
}

.float-entry::after {
  content: "→";
  display: none;
  font-size: 19px;
  line-height: 1;
}

/* ---------- 8. Footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-mist);
  padding-top: clamp(48px, 6.5vw, 88px);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(77, 240, 169, .18) 1px, transparent 0);
  background-size: 22px 22px;
  opacity: .55;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95) 0%, rgba(0, 0, 0, 0) 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95) 0%, rgba(0, 0, 0, 0) 72%);
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.8fr) minmax(0, 1.15fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.footer-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: .16em;
  color: var(--c-paper);
  line-height: 1.15;
  max-width: none;
}

.footer-tagline {
  margin-top: 12px;
  font-size: 14px;
  letter-spacing: .06em;
  color: rgba(199, 211, 209, .82);
  max-width: 22ch;
}

.footer-meta {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: rgba(199, 211, 209, .5);
  max-width: none;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px clamp(16px, 2vw, 32px);
}

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--c-signal-hi);
  margin-bottom: 14px;
  line-height: 1.4;
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-col__list a {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: rgba(199, 211, 209, .88);
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-col__list a:hover {
  color: var(--c-paper);
  transform: translateX(3px);
}

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

.contact-list {
  display: grid;
  gap: 10px;
  margin-top: 2px;
}

.contact-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
}

.contact-list__k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: rgba(199, 211, 209, .55);
  line-height: 1.9;
}

.contact-list__v {
  color: var(--c-paper);
  word-break: break-word;
  line-height: 1.7;
}

.contact-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(199, 211, 209, .14);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(199, 211, 209, .62);
  max-width: 34ch;
}

.footer-bottom {
  position: relative;
  z-index: 1;
  margin-top: clamp(40px, 6vw, 76px);
  border-top: 1px solid rgba(199, 211, 209, .14);
}

.footer-bottom__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 20px var(--gutter) 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.footer-legal {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: rgba(199, 211, 209, .68);
  max-width: none;
}

.footer-signoff {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-signal-hi);
  max-width: none;
}

.footer-actions {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-action,
.footer-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(199, 211, 209, .28);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--c-paper);
  transition: background-color .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}
.footer-action:hover,
.footer-top:hover {
  background: rgba(255, 106, 43, .16);
  border-color: var(--c-signal);
  color: var(--c-paper);
}

/* ---------- 9. Generic layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--wide { max-width: 1440px; }

.section { padding-block: clamp(48px, 7vw, 96px); }

.section--ink {
  background: var(--c-ink);
  color: var(--c-paper);
}
.section--ink h1,
.section--ink h2,
.section--ink h3,
.section--ink h4 { color: var(--c-paper); }
.section--ink p { color: rgba(199, 211, 209, .86); }

.prose { max-width: 68ch; }

/* ---------- 10. Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-water);
}
.breadcrumbs a {
  color: var(--c-water);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: rgba(41, 66, 74, .45);
  transition: color .2s var(--ease), text-decoration-color .2s var(--ease);
}
.breadcrumbs a:hover {
  color: var(--c-signal-deep);
  text-decoration-color: var(--c-signal);
}
.breadcrumbs__sep { color: var(--c-mist); }
.breadcrumbs [aria-current="page"] { color: var(--c-graphite); }

/* ---------- 11. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1;
  text-align: center;
  transition: background-color .22s var(--ease), color .22s var(--ease),
              border-color .22s var(--ease), transform .22s var(--ease);
}
.btn:hover { transform: translateY(-1px); }

.btn--primary {
  background: var(--c-signal);
  color: #1A0A03;
}
.btn--primary:hover { background: var(--c-signal-hi); }

.btn--ink {
  background: var(--c-ink);
  color: var(--c-paper);
}
.btn--ink:hover { background: var(--c-ink-2); }

.btn--ghost {
  background: transparent;
  border-color: currentColor;
}
.btn--ghost:hover {
  border-color: var(--c-signal);
  color: var(--c-signal-deep);
}

/* ---------- 12. Section heading kit ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  line-height: 1.4;
  color: var(--c-signal-deep);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  flex: none;
}
.eyebrow--light { color: var(--c-signal-hi); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 32px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.section-head__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: .01em;
}

.section-head__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-water);
  max-width: 46ch;
}
.section--ink .section-head__note { color: rgba(199, 211, 209, .82); }

/* ---------- 13. Media frame（页面放图占位基础规则） ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 2px;
  background: linear-gradient(160deg, var(--c-ink-2) 0%, var(--c-ink) 60%, #061214 100%);
  aspect-ratio: 16 / 9;
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(77, 240, 169, .24) 1px, transparent 0);
  background-size: 18px 18px;
  opacity: .7;
  pointer-events: none;
}
.media-frame > img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide   { aspect-ratio: 21 / 9; }
.media-frame--tall   { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* ---------- 14. Optional right index rail ---------- */
.side-index {
  position: fixed;
  top: calc(var(--bar-h) + 40px);
  right: 14px;
  z-index: 50;
  display: none;
}
.side-index__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.side-index__link {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: rgba(41, 66, 74, .62);
  writing-mode: vertical-rl;
  transition: color .22s var(--ease);
}
.side-index__link:hover { color: var(--c-signal-deep); }
.side-index__link.is-active {
  color: var(--c-signal);
  font-weight: 700;
}

/* ---------- 15. Reveal ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
html.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 16. Responsive ---------- */
@media (max-width: 1160px) {
  :root { --rail-w: 78px; }
  .site-nav__link { padding: 10px 4px 10px 7px; }
  .site-nav__label { font-size: 12px; letter-spacing: .02em; }
}

@media (max-width: 1180px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  }
  .footer-contact {
    grid-column: 1 / -1;
    padding-top: 8px;
    border-top: 1px solid rgba(199, 211, 209, .12);
  }
  .contact-note { max-width: 52ch; }
}

@media (max-width: 900px) {
  body { padding-left: 0; }

  .header-meta { display: none; }
  .brand-sub { display: none; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    top: var(--bar-h);
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    max-height: calc(100vh - var(--bar-h));
    max-height: calc(100dvh - var(--bar-h));
    padding: 14px var(--gutter) 26px;
    border-right: 0;
    border-bottom: 1px solid rgba(199, 211, 209, .18);
    box-shadow: 0 26px 60px rgba(0, 0, 0, .48);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s linear;
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav__list { gap: 4px; }

  .site-nav__link {
    display: flex;
    align-items: baseline;
    gap: 14px;
    padding: 15px 12px;
    text-align: left;
    border-left: 3px solid transparent;
    border-bottom: 1px solid rgba(199, 211, 209, .08);
  }
  .site-nav__idx {
    margin-bottom: 0;
    font-size: 10px;
    min-width: 22px;
  }
  .site-nav__label {
    font-size: 15px;
    font-weight: 500;
    letter-spacing: .12em;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }
  .footer-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .footer-contact {
    grid-column: auto;
    border-top: 1px solid rgba(199, 211, 209, .12);
    padding-top: 22px;
  }
  .footer-tagline { max-width: none; }
  .contact-note { max-width: none; }

  .footer-bottom__inner { gap: 12px; }
  .footer-actions { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
  :root { --bar-h: 58px; }

  .float-entry {
    right: 16px;
    bottom: 16px;
    width: 56px;
    height: 56px;
    padding: 0;
    justify-content: center;
    border-radius: 18px;
  }
  .float-entry__dot { display: none; }
  .float-entry::after { display: block; }
  .float-entry__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .float-entry__note { display: none; }

  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-bottom__inner { flex-direction: column; align-items: flex-start; }
  .footer-legal { font-size: 11px; line-height: 1.6; }
  .contact-list li { grid-template-columns: 40px minmax(0, 1fr); }
}

@media (min-width: 1280px) {
  .side-index { display: block; }
}

/* ---------- 17. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .btn:hover,
  .float-entry:hover,
  .float-entry:focus-visible,
  .footer-col__list a:hover {
    transform: none;
  }
}