/* ============================================================
   易倍体育 · 共享外壳 Site Kit
   赛场年鉴 × 数据控制台
   ============================================================ */

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

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

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

ol, ul { 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; cursor: pointer; }

/* ---------- tokens ---------- */
:root {
  --ink-0: #0B1220;
  --ink-1: #111C33;
  --ink-2: #0A1120;
  --paper: #F4E9D8;
  --paper-shadow: #E3D4BD;
  --brown: #2B2118;
  --orange: #FF6A1A;
  --orange-soft: #FF9A5C;
  --blue: #2F6BFF;
  --blue-soft: #7DA2FF;
  --green: #B7FF3C;
  --print: #D9482B;
  --cool: #C9D4E8;
  --cool-dim: #8EA0C0;
  --warm: #6B5B4B;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --font-serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --edge: clamp(1rem, 4vw, 2.5rem);
  --radius: 3px;
  --shadow-stack: 0 18px 40px -28px rgba(0, 0, 0, .9);
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--cool);
  background:
    radial-gradient(120% 80% at 88% -12%, rgba(47, 107, 255, .20), transparent 62%),
    radial-gradient(90% 60% at -5% 0%, rgba(255, 106, 26, .13), transparent 58%),
    var(--ink-0);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: #F6EDDE;
}

strong { font-weight: 800; }

::selection { background: var(--orange); color: #14100C; }

:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- utilities ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--edge);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: .6rem;
  left: .6rem;
  z-index: 200;
  transform: translateY(-180%);
  background: var(--orange);
  color: #14100C;
  font-weight: 800;
  font-size: .9rem;
  padding: .7rem 1.1rem;
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 0 rgba(217, 72, 43, .55);
  transition: transform .2s ease;
}

.skip-link:focus,
.skip-link:focus-visible { transform: none; }

/* ---------- header : command bar ---------- */
.command-bar {
  position: sticky;
  top: 0;
  z-index: 80;
  color: var(--cool);
  background: linear-gradient(100deg, #0B1220 0%, #101B31 52%, #0B1220 100%);
  border-bottom: 1px solid rgba(255, 106, 26, .38);
  transition: background .25s ease, box-shadow .25s ease;
}

.command-bar.is-condensed {
  background: rgba(11, 18, 32, .95);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 34px -26px #000, 0 1px 0 rgba(255, 154, 92, .28);
}

.command-bar__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(.75rem, 2vw, 1.75rem);
  min-height: 68px;
  padding-block: .5rem;
  transition: min-height .25s ease;
}

.command-bar.is-condensed .command-bar__inner { min-height: 56px; }

/* brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  min-height: 44px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  background: var(--orange);
  color: #14100C;
  font-weight: 900;
  font-size: 1.15rem;
  line-height: 1;
  border-radius: var(--radius);
  transform: skewX(-8deg);
  box-shadow: 4px 4px 0 0 rgba(217, 72, 43, .5);
  transition: transform .2s ease, box-shadow .2s ease;
}

.brand:hover .brand__mark {
  transform: skewX(-8deg) translate(-1px, -1px);
  box-shadow: 6px 6px 0 0 rgba(217, 72, 43, .5);
}

.brand__text { display: flex; flex-direction: column; line-height: 1.2; }

.brand__name {
  font-size: 1.06rem;
  font-weight: 900;
  letter-spacing: .06em;
  color: #F6EDDE;
}

.brand__tag {
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .2em;
  color: var(--orange-soft);
}

/* index navigation */
.index-nav { justify-self: center; }

.index-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(.1rem, 1vw, .55rem);
}

.index-nav__item { display: block; }

.index-nav__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  min-height: 40px;
  padding: .35rem .55rem;
  border-radius: var(--radius);
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: #D6DFEF;
  box-shadow: inset 0 -2px 0 transparent;
  transition: color .18s ease, background .18s ease, box-shadow .18s ease;
}

.index-nav__num {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .06em;
  color: #6F7F9B;
  transition: color .18s ease;
}

.index-nav__link:hover,
.index-nav__link:focus-visible {
  color: #FFFFFF;
  background: rgba(201, 212, 232, .09);
}

.index-nav__link:hover .index-nav__num { color: var(--orange-soft); }

.index-nav__link[aria-current="page"] {
  color: #FFFFFF;
  background: rgba(255, 106, 26, .16);
  box-shadow: inset 0 -2px 0 var(--orange);
}

.index-nav__link[aria-current="page"] .index-nav__num { color: var(--orange); }

.index-nav__actions { display: none; }

/* header actions */
.command-bar__actions {
  display: flex;
  align-items: center;
  gap: .7rem;
  justify-self: end;
}

.cert-chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .38rem .6rem;
  border: 1px dashed rgba(183, 255, 60, .5);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
  color: #D6DFEF;
  white-space: nowrap;
}

.cert-chip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(183, 255, 60, .18);
}

/* nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(201, 212, 232, .28);
  border-radius: var(--radius);
  background: rgba(17, 28, 51, .8);
  justify-self: end;
}

.nav-toggle__bar {
  width: 20px;
  height: 2px;
  background: var(--cool);
  transition: transform .22s ease, opacity .22s ease, background .22s ease;
}

.command-bar[data-open] .nav-toggle { border-color: rgba(255, 106, 26, .6); }

.command-bar[data-open] .nav-toggle__bar { background: var(--orange); }

.command-bar[data-open] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }

.command-bar[data-open] .nav-toggle__bar:nth-child(2) { opacity: 0; }

.command-bar[data-open] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* reading progress */
.readout {
  height: 3px;
  background: rgba(201, 212, 232, .13);
  overflow: hidden;
}

.readout__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--orange) 0%, var(--orange-soft) 55%, var(--green) 100%);
  transition: transform .12s linear;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 44px;
  padding: .6rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.2;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.btn--primary {
  background: var(--orange);
  color: #14100C;
  box-shadow: 4px 4px 0 0 rgba(217, 72, 43, .5);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--orange-soft);
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 0 rgba(217, 72, 43, .45);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(201, 212, 232, .45);
  color: #E8EEF8;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--orange);
  color: var(--orange-soft);
}

.btn--small {
  min-height: 40px;
  padding: .45rem .9rem;
  font-size: .78rem;
}

/* ---------- footer ---------- */
.site-foot {
  position: relative;
  overflow: hidden;
  color: var(--cool);
  background: linear-gradient(180deg, #0B1220 0%, #0A1120 58%, #070D18 100%);
  border-top: 1px solid rgba(255, 106, 26, .3);
}

.site-foot__curve {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 140px;
  opacity: .55;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 50% 118%, transparent 46%, rgba(47, 107, 255, .22) 47%, transparent 49%),
    radial-gradient(circle at 50% 118%, transparent 46%, rgba(255, 106, 26, .16) 47%, transparent 49%);
  background-size: 140px 140px, 260px 260px;
  background-position: 0 0, 70px 0;
  background-repeat: repeat-x, repeat-x;
}

.site-foot__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(1.75rem, 3vw, 2.5rem);
}

.foot-top {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, .82fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.foot-brand { max-width: 34ch; }

.foot-brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: .7rem;
  background: var(--orange);
  color: #14100C;
  font-weight: 900;
  font-size: 1rem;
  line-height: 1;
  border-radius: 2px;
  transform: skewX(-8deg);
  box-shadow: 3px 3px 0 0 rgba(217, 72, 43, .5);
}

.foot-brand__name {
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  font-weight: 900;
  letter-spacing: .06em;
  color: #F6EDDE;
}

.foot-brand__line {
  margin-top: .25rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--orange-soft);
}

.foot-brand__note {
  margin-top: .9rem;
  font-size: .84rem;
  line-height: 1.8;
  color: #93A3BF;
}

.foot-col__title {
  padding-bottom: .55rem;
  margin-bottom: .8rem;
  border-bottom: 1px solid rgba(201, 212, 232, .18);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--orange-soft);
}

.foot-list { display: grid; gap: .1rem; }

.foot-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  font-size: .9rem;
  color: #C9D4E8;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.foot-link:hover,
.foot-link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.foot-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem 2rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  padding-top: 1.4rem;
  border-top: 1px dashed rgba(201, 212, 232, .22);
}

.foot-contact__item { display: grid; gap: .2rem; }

.foot-contact__label {
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .2em;
  color: #7E90AF;
}

.foot-contact__value {
  font-family: var(--font-mono);
  font-size: .88rem;
  letter-spacing: .02em;
  color: #E8EEF8;
  word-break: break-word;
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(201, 212, 232, .14);
  font-size: .76rem;
  color: #8195B3;
}

.foot-legal__copy { letter-spacing: .02em; }

.foot-legal__icp {
  font-family: var(--font-mono);
  letter-spacing: .06em;
  color: #9FB0CC;
}

/* ---------- shared page blocks ---------- */
.section { padding-block: clamp(2.25rem, 5vw, 4.5rem); }

.chapter {
  position: relative;
  padding-block: clamp(2.75rem, 6vw, 5rem);
  padding-left: clamp(0px, 1.6vw, .9rem);
}

.chapter::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(1rem, 3vw, 2rem);
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--orange), rgba(255, 106, 26, 0));
  transition: height .5s ease;
}

.chapter.is-active::before { height: clamp(3rem, 9vw, 6.5rem); }

.chapter.is-active .section-head__num { color: var(--green); }

.section-head {
  display: grid;
  gap: .55rem;
  margin-bottom: clamp(1.4rem, 3vw, 2.4rem);
}

.section-head__num {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .28em;
  color: var(--orange);
  transition: color .3s ease;
}

.section-head__title {
  font-size: clamp(1.7rem, 4vw, 2.75rem);
  transform: skewX(-3deg);
  transform-origin: left center;
}

.section-head__note {
  max-width: 58ch;
  font-size: .95rem;
  color: #9FB0CC;
}

.paper .section-head__note { color: var(--warm); }

.rule {
  height: 1px;
  border: 0;
  margin-block: clamp(1.5rem, 3vw, 2.5rem);
  background: linear-gradient(90deg, var(--orange) 0%, rgba(201, 212, 232, .22) 45%, transparent 100%);
}

.paper .rule { background: linear-gradient(90deg, var(--print) 0%, rgba(43, 33, 24, .25) 50%, transparent 100%); }

/* paper layer */
.paper {
  position: relative;
  padding: clamp(1.35rem, 4vw, 3rem);
  border-radius: 2px;
  background: linear-gradient(180deg, #F7EEDF 0%, #F1E5D1 100%);
  color: var(--brown);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), var(--shadow-stack);
}

.paper :is(h1, h2, h3, h4) { color: var(--brown); }

.paper a { color: #A33A1F; border-bottom: 1px solid rgba(163, 58, 31, .35); }

.paper a:hover { color: var(--print); }

.paper--stack { isolation: isolate; }

.paper--stack::before,
.paper--stack::after {
  content: "";
  position: absolute;
  inset: 10px -7px -10px 7px;
  z-index: -1;
  background: var(--paper-shadow);
  border: 1px solid rgba(43, 33, 24, .16);
  transform: rotate(-.5deg);
}

.paper--stack::after {
  inset: 16px -13px -17px 13px;
  opacity: .6;
  transform: rotate(1deg);
}

/* data layer */
.data-deck {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(.75rem, 2vw, 1.15rem);
}

.data-card {
  padding: 1.05rem 1.15rem;
  border: 1px solid rgba(201, 212, 232, .16);
  border-left: 3px solid var(--orange);
  border-radius: 2px;
  background: linear-gradient(155deg, #16233D 0%, #0E1729 72%);
  box-shadow: var(--shadow-stack);
}

.data-card--main {
  border-left-color: var(--green);
  background: linear-gradient(150deg, #17253F 0%, #101A2E 62%, #0C1424 100%);
}

.data-card__label {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .2em;
  color: var(--cool-dim);
}

.data-card__value {
  margin-block: .3rem .2rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: #F6EDDE;
}

.data-card--main .data-card__value { color: var(--green); }

.data-card__meta {
  font-family: var(--font-mono);
  font-size: .74rem;
  color: #8798B8;
}

/* tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .16rem .5rem;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .1em;
  line-height: 1.5;
  color: var(--cool);
}

.tag--orange { color: var(--orange); }

.tag--green { color: var(--green); }

.tag--blue { color: var(--blue-soft); }

/* index list */
.index-list {
  display: grid;
  border-top: 1px solid rgba(43, 33, 24, .22);
}

.index-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .5rem 1rem;
  padding: .85rem 0;
  border-bottom: 1px solid rgba(43, 33, 24, .16);
}

.index-row__time {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--warm);
}

.index-row__title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--brown);
}

/* media */
.figure { display: grid; gap: .5rem; margin: 0; }

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(201, 212, 232, .2);
  border-radius: 2px;
  background:
    linear-gradient(135deg, #16233D 0%, #0C1424 58%, #1A2B49 100%);
}

.media-frame img,
.media-frame svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.media-frame--tall { aspect-ratio: 4 / 5; }

.media-frame--square { aspect-ratio: 1 / 1; }

.figure__cap {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--warm);
}

/* prose */
.prose { max-width: 68ch; line-height: 1.85; }

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

.prose h2,
.prose h3 { margin-top: 2rem; margin-bottom: .6rem; }

.paper .prose { color: #3A2E22; }

/* breadcrumb */
.breadcrumb { padding-block: 1rem; }

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .5rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: #8195B3;
}

.breadcrumb__list > li + li::before {
  content: "/";
  margin-right: .5rem;
  color: rgba(201, 212, 232, .4);
}

.breadcrumb__link { color: #9FB0CC; }

.breadcrumb__link:hover { color: var(--orange); }

.breadcrumb__current { color: #E8EEF8; }

/* grids */
.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.75rem); }

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

.grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- responsive : tablet & mobile ---------- */
@media (max-width: 1080px) {
  .brand__tag { display: none; }
  .index-nav__list { gap: .1rem; }
  .index-nav__link { font-size: .8rem; padding-inline: .45rem; }
}

@media (max-width: 960px) {
  .command-bar__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: .6rem;
    min-height: 62px;
  }

  .command-bar.is-condensed .command-bar__inner { min-height: 56px; }

  .brand__tag { display: block; }

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

  .command-bar__actions { display: none; }

  .index-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 70;
    display: grid;
    gap: .9rem;
    max-height: min(72vh, 34rem);
    overflow-y: auto;
    padding: .5rem var(--edge) 1.35rem;
    background: linear-gradient(180deg, #111C33 0%, #0B1220 100%);
    border-bottom: 2px solid var(--orange);
    box-shadow: 0 26px 40px -30px #000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-.6rem);
    transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
  }

  .command-bar[data-open] .index-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .index-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .index-nav__link {
    width: 100%;
    min-height: 48px;
    padding: .75rem .25rem;
    font-size: .98rem;
    border-radius: 0;
    border-bottom: 1px solid rgba(201, 212, 232, .13);
    box-shadow: inset 2px 0 0 transparent;
  }

  .index-nav__link[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--orange);
  }

  .index-nav__num { font-size: .68rem; }

  .index-nav__actions {
    display: flex;
    align-items: center;
    gap: .7rem;
    flex-wrap: wrap;
    padding-top: .3rem;
  }

  .foot-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-brand { grid-column: 1 / -1; max-width: none; }

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

@media (max-width: 820px) {
  .data-deck { grid-template-columns: minmax(0, 1fr); }
  .grid--split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  body { font-size: .98rem; }

  .foot-top { grid-template-columns: minmax(0, 1fr); gap: 1.6rem; }

  .foot-link { min-height: 44px; }

  .foot-legal { flex-direction: column; align-items: flex-start; }

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

  .index-row { grid-template-columns: auto minmax(0, 1fr); }

  .index-row > :last-child { grid-column: 2; }
}

@media (max-width: 400px) {
  .brand__name { font-size: .98rem; }
  .brand__mark { width: 36px; height: 36px; }
}

/* ---------- 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;
  }

  .chapter::before { height: 0; }
  .chapter.is-active::before { height: clamp(2rem, 6vw, 3.5rem); }
  .readout__bar { transition: none; }
}