:root {
  --color-surface: #f4f4f3;
  --color-surface-alt: #ebebea;
  --color-surface-deep: #dfdfdd;
  --color-ink: #48473c;
  --color-ink-soft: #6c6a5b;
  --color-ink-muted: #898776;
  --color-line: #d5d5d2;
  --color-primary: #7e773a;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #e3e2d9;
  --color-accent: #a8650b;
  --color-accent-ink: #ffffff;
  --color-highlight: #e6dac9;
  --color-focus: #a25d02;
  --color-contrast-surface: #1e1d15;
  --color-contrast-ink: #e7e7e4;
  --color-contrast-line: #4a4943;
  --color-contrast-accent: #f0900f;
  --overlay-scrim: linear-gradient(180deg, rgba(30, 29, 21, 0.35) 0%, rgba(30, 29, 21, 0.72) 55%, rgba(30, 29, 21, 0.92) 100%);
  --font-heading: "Songti SC", "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 12.2px;
  --text-sm: 14.6px;
  --text-base: 16px;
  --text-lg: 19.2px;
  --text-xl: 23.0px;
  --text-2xl: 27.6px;
  --text-3xl: 33.2px;
  --text-4xl: 39.8px;
  --text-display: clamp(39px, 8.0vw, 103px);
  --text-figure: clamp(33px, 5.8vw, 74px);
  --weight-heading: 678;
  --weight-body: 400;
  --leading-body: 1.81;
  --leading-heading: 1.26;
  --tracking-heading: -0.001em;
  --radius-sm: 2px;
  --radius-md: 2px;
  --radius-lg: 2px;
  --radius-pill: 2px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 1px 0 rgba(72, 71, 60, 0.12);
  --shadow-2: 0 2px 0 rgba(72, 71, 60, 0.18);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1120px;
  --measure: 66ch;
  --gutter: 32px;
  --section-y: 95px;
  --section-y-lg: 133px;
}

/* ============================================================
   1. reset 与纸张基底
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-surface);
  background-image:
    radial-gradient(72rem 38rem at 6% -8%, color-mix(in srgb, var(--color-highlight) 40%, transparent), transparent 62%),
    radial-gradient(54rem 34rem at 102% 46%, color-mix(in srgb, var(--color-primary-soft) 36%, transparent), transparent 64%);
  background-repeat: no-repeat;
  background-attachment: fixed;
}

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

/* ============================================================
   2. 中文排版
   ============================================================ */
h1, h2, h3, h4 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin: 0 0 var(--space-2); }
ul, ol { margin: 0 0 var(--space-2); padding-left: 1.2em; }
li { margin-bottom: var(--space-1); }
strong, b { font-weight: 600; }
small { font-size: var(--text-xs); }
hr { border: 0; height: var(--border-thin); background: var(--color-line); margin: var(--space-4) 0; }

a {
  color: var(--color-primary);
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 3px;
}
a:hover { color: var(--color-accent); }

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

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.display {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
}

.figure {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.data-value {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lede {
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.aside-note {
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid var(--color-primary-soft);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.rule-emphasis {
  margin: 0 0 var(--space-3);
  padding-left: var(--space-3);
  border-left: 4px solid var(--color-primary);
  font-size: var(--text-lg);
}
.rule-emphasis--accent { border-left-color: var(--color-accent); }

.tag {
  display: inline-block;
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-ink-soft);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.tag--accent { background: var(--color-accent); color: var(--color-accent-ink); }

/* ============================================================
   3. 布局骨架
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.section { padding-block: var(--space-8); }

.grid {
  display: grid;
  gap: var(--gutter);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.prose { max-width: var(--measure); }
.prose p { margin-bottom: var(--space-3); }
.prose h2 { margin-top: var(--space-6); }
.prose h3 { margin-top: var(--space-4); }
.prose ul, .prose ol { padding-left: 1.1em; }
.prose :target { background-color: var(--color-highlight); }

:target { scroll-margin-top: 120px; }

.breadcrumb {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}
.breadcrumb li { display: flex; align-items: center; margin: 0; }
.breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-1);
  color: var(--color-ink-muted);
}
.breadcrumb a { color: var(--color-ink-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-accent); text-decoration: underline; }

@media (min-width: 768px) {
  .section { padding-block: var(--section-y); }
  .section--lg { padding-block: var(--section-y-lg); }
  .container { padding-inline: var(--space-4); }
  .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .span-3 { grid-column: span 3; }
  .span-4 { grid-column: span 4; }
  .span-5 { grid-column: span 5; }
  .span-6 { grid-column: span 6; }
  .span-7 { grid-column: span 7; }
  .span-8 { grid-column: span 8; }
  .span-9 { grid-column: span 9; }
  .span-12 { grid-column: span 12; }
  .start-2 { grid-column-start: 2; }
  .start-4 { grid-column-start: 4; }
  .start-6 { grid-column-start: 6; }
}

/* ============================================================
   4. 纸片面板与贴纸标签
   ============================================================ */
.paper {
  position: relative;
  padding: var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}
.paper::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 0 0 var(--border-thin) color-mix(in srgb, var(--color-line) 55%, transparent);
}
.paper--alt { background: var(--color-surface-alt); box-shadow: var(--shadow-2); }
.paper--deep { background: var(--color-surface-deep); }
.paper__body { position: relative; z-index: 1; }

.sticker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.4;
  box-shadow: var(--shadow-1);
  transform: rotate(-1.5deg);
}
.sticker--primary { background: var(--color-primary); color: var(--color-primary-ink); transform: rotate(-1deg); }
.sticker--highlight { background: var(--color-highlight); transform: rotate(1deg); }
.sticker--accent { background: var(--color-accent); color: var(--color-accent-ink); transform: rotate(2deg); }
.sticker--corner {
  position: absolute;
  top: calc(-1 * var(--space-1));
  right: var(--space-3);
  z-index: 2;
}

.tick-frame { position: relative; }
.tick-frame::before,
.tick-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 10px;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to right,
    color-mix(in srgb, var(--color-line) 90%, transparent) 0 1px,
    transparent 1px 14px
  );
}
.tick-frame::before { top: 0; }
.tick-frame::after { bottom: 0; }

@media (min-width: 768px) {
  .paper { padding: var(--space-4); }
}

@media (min-width: 1024px) {
  .paper--shift-a { margin-left: var(--space-1); }
  .paper--shift-b { margin-right: var(--space-2); }
  .paper--shift-c { margin-left: var(--space-3); }
}

/* ============================================================
   5. 图片容器
   ============================================================ */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-deep);
  box-shadow: var(--shadow-1);
}
.media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--wide { aspect-ratio: 16 / 9; }
.media--band { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--placeholder {
  background-image: repeating-linear-gradient(
    45deg,
    color-mix(in srgb, var(--color-line) 75%, transparent) 0 1px,
    transparent 1px 12px
  );
}
.media__scrim {
  position: absolute;
  inset: 0;
  background-image: var(--overlay-scrim);
  pointer-events: none;
}
.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: var(--space-3);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  line-height: 1.6;
}
.media__caption .data-value { color: var(--color-contrast-accent); }

/* ============================================================
   6. 深底数据屏（每页最多一处）
   ============================================================ */
.data-screen {
  position: relative;
  padding: var(--space-4);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
}
.data-screen__label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}
.data-screen__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-contrast-accent);
}
.data-screen__meta {
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}
.data-screen__rule {
  height: var(--border-thin);
  margin-block: var(--space-2);
  background: var(--color-contrast-line);
}
.data-screen a { color: var(--color-contrast-accent); }

/* ============================================================
   7. 按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 10px var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-1);
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); color: var(--color-ink); }
.btn--primary { background: var(--color-primary); color: var(--color-primary-ink); }
.btn--primary:hover { color: var(--color-primary-ink); background: color-mix(in srgb, var(--color-primary) 86%, var(--color-ink)); }
.btn--accent { background: var(--color-accent); color: var(--color-accent-ink); }
.btn--accent:hover { color: var(--color-accent-ink); background: color-mix(in srgb, var(--color-accent) 84%, var(--color-ink)); }
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  box-shadow: inset 0 0 0 var(--border-thin) var(--color-primary);
}
.btn--ghost:hover { background: var(--color-primary-soft); }

/* ============================================================
   8. 目录与旁注组件
   ============================================================ */
.index-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.index-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding-block: var(--space-2);
  box-shadow: inset 0 var(--border-thin) 0 color-mix(in srgb, var(--color-line) 70%, transparent);
}
.index-list__item:first-child { box-shadow: none; }
.index-list__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}
.index-list__title {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.4;
}
.index-list__title a { color: var(--color-ink); text-decoration: none; }
.index-list__title a:hover { color: var(--color-accent); }
.index-list__meta {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ============================================================
   9. 头部：悬浮胶囊纸岛
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-2);
  z-index: 200;
  padding: var(--space-1) var(--space-2);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  text-decoration: none;
}
.skip-link:focus { top: var(--space-2); color: var(--color-contrast-ink); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding-top: var(--space-2);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--color-surface) 96%, transparent) 0%,
    color-mix(in srgb, var(--color-surface) 70%, transparent) 62%,
    transparent 100%
  );
}

.header-frame {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  max-width: var(--container);
  margin-inline: var(--space-2);
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1), inset 0 0 0 var(--border-thin) color-mix(in srgb, var(--color-line) 60%, transparent);
  transition: padding 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-right: auto;
  min-width: 0;
  text-decoration: none;
  color: var(--color-ink);
}
.brand__mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 34px;
  height: 34px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  transform: rotate(-2deg);
}
.brand__text { display: flex; flex-direction: column; min-width: 0; }
.brand__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.2;
  letter-spacing: var(--tracking-heading);
  white-space: nowrap;
}
.brand__desc {
  overflow: hidden;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.season-marker {
  display: none;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  white-space: nowrap;
}
.season-marker__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-contrast-accent);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-1);
}
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: var(--border-thick);
  background: currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: var(--border-thick);
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.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); }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav__list li { margin: 0; }
.site-nav__link {
  display: inline-block;
  padding: 6px var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.site-nav__link:hover { background: var(--color-surface-deep); color: var(--color-ink); }
.site-nav__link[aria-current="page"] {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: var(--shadow-1);
}
.nav-cta { white-space: nowrap; }

.scroll-progress {
  position: absolute;
  left: var(--space-2);
  right: var(--space-2);
  bottom: 0;
  height: var(--border-thick);
  overflow: hidden;
  border-radius: var(--radius-sm);
}
.scroll-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
}

.site-header[data-scrolled] .header-frame {
  padding-block: calc(var(--space-1) / 2);
  background: color-mix(in srgb, var(--color-surface-alt) 86%, var(--color-primary-soft));
  box-shadow: var(--shadow-2), inset 0 0 0 var(--border-thin) color-mix(in srgb, var(--color-primary) 30%, transparent);
}
.site-header[data-scrolled] .brand__mark { background: var(--color-accent); }

@media (min-width: 1024px) {
  .season-marker { display: flex; }
}
@media (min-width: 1184px) {
  .header-frame { margin-inline: auto; }
}

/* ============================================================
   10. 页脚：极简单行
   ============================================================ */
.site-footer {
  margin-top: var(--section-y);
  background: var(--color-surface-alt);
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 10px;
  background-image: repeating-linear-gradient(
    to right,
    color-mix(in srgb, var(--color-line) 95%, transparent) 0 1px,
    transparent 1px 14px
  );
  pointer-events: none;
}
.footer-frame {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-4) var(--space-2) var(--space-6);
  font-size: var(--text-xs);
}
.footer-brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
}
.footer-links a {
  color: var(--color-ink-soft);
  text-decoration: none;
}
.footer-links a:hover { color: var(--color-accent); text-decoration: underline; }
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  flex-basis: 100%;
  margin: 0;
  padding-top: var(--space-2);
  box-shadow: inset 0 var(--border-thin) 0 color-mix(in srgb, var(--color-line) 80%, transparent);
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}
.footer-meta__item { white-space: nowrap; }

@media (min-width: 768px) {
  .footer-frame { padding-inline: var(--space-4); }
}

/* ============================================================
   11. 移动端导航与紧凑排版
   ============================================================ */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .brand__desc { display: none; }

  .site-nav {
    position: absolute;
    top: calc(100% + var(--space-1));
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2);
  }
  .site-nav[data-open] { display: flex; }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  .site-nav__link {
    display: block;
    padding: 10px var(--space-2);
    font-size: var(--text-base);
  }
  .nav-cta { align-self: stretch; }
}

@media (min-width: 901px) {
  .nav-toggle { display: none; }
}

@media (max-width: 640px) {
  .header-frame { gap: var(--space-1); }
  .brand__name { font-size: var(--text-base); }
  .sticker--corner { right: var(--space-2); }
  .footer-meta { font-size: var(--text-xs); }
  .footer-meta__item { white-space: normal; }
}

/* ============================================================
   12. 滚动显现与减少动态
   ============================================================ */
html[data-reveal-ready] [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
html[data-reveal-ready] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@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: 0ms !important;
  }
  html[data-reveal-ready] [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .btn:hover { transform: none; }
}