/* ==========================================================================
   MK赛场 · 共享站点样式 /assets/site.css
   侧边索引轨道 + 战术板网格 + 纸张叠层
   ========================================================================== */

:root {
  /* 色彩 */
  --ink-950: #08120F;
  --ink-800: #0F1F1A;
  --ink-700: #17332B;
  --paper: #F4F2EA;
  --paper-2: #E4E1D5;
  --signal: #FF6A2B;
  --signal-soft: #FF8248;
  --cyan: #3FE3D2;
  --amber: #F5B544;
  --sage: #8FA89A;
  --text-ink: #14201C;

  --line: rgba(143, 168, 154, 0.20);
  --line-strong: rgba(143, 168, 154, 0.42);
  --line-paper: rgba(20, 32, 28, 0.16);

  /* 结构 */
  --rail-w: 268px;
  --topbar-h: 68px;
  --canvas: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --gap: 24px;
  --step-lg: 128px;
  --step-md: 96px;
  --step-sm: 48px;

  /* 字体 */
  --font-display: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-cond: "Helvetica Neue Condensed", "Arial Narrow", "Roboto Condensed",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "IBM Plex Mono",
    "Liberation Mono", monospace;

  /* 动效 */
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --t-fast: 160ms;
  --t-base: 220ms;
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */

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

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

body { margin: 0; }

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

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

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

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

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

table { border-collapse: collapse; width: 100%; }

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

.mk-sheet :focus-visible { outline-color: var(--ink-700); }

::selection {
  background: var(--cyan);
  color: var(--ink-950);
}

/* --------------------------------------------------------------------------
   基础排版
   -------------------------------------------------------------------------- */

body {
  padding-top: var(--topbar-h);
  background-color: var(--ink-950);
  background-image:
    radial-gradient(120% 60% at 82% -8%, rgba(63, 227, 210, 0.10) 0%, rgba(63, 227, 210, 0) 62%),
    radial-gradient(90% 50% at 4% 0%, rgba(255, 106, 43, 0.09) 0%, rgba(255, 106, 43, 0) 58%);
  background-repeat: no-repeat;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-weight: 400;
  line-height: 1.15;
}

p { max-width: 38em; }

strong { font-weight: 600; }

.display {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(3.2rem, 9vw, 8.5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

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

.visually-hidden {
  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;
}

/* --------------------------------------------------------------------------
   跳转链接与滚动进度
   -------------------------------------------------------------------------- */

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--paper);
  color: var(--text-ink);
  font-family: var(--font-cond);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  border: 1px solid var(--paper-2);
  transform: translateY(-180%);
  transition: transform var(--t-fast) var(--ease);
}

.skip-link:focus { transform: translateY(0); }

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 120;
  background: rgba(143, 168, 154, 0.14);
  pointer-events: none;
}

.scroll-meter__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--signal) 100%);
  transition: width 120ms linear;
}

/* --------------------------------------------------------------------------
   品牌
   -------------------------------------------------------------------------- */

.mk-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--paper);
  min-width: 0;
}

.mk-brand__mark {
  position: relative;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--paper);
  color: var(--text-ink);
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 0.84rem;
  letter-spacing: -0.02em;
  line-height: 1;
  border: 1px solid var(--paper-2);
  box-shadow: 3px 3px 0 0 var(--ink-700);
  transition: background-color var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease);
}

.mk-brand:hover .mk-brand__mark {
  background: var(--cyan);
  box-shadow: 3px 3px 0 0 var(--signal);
}

.mk-brand__text { display: block; min-width: 0; }

.mk-brand__name {
  display: block;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 1.02rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.mk-brand__line {
  display: block;
  margin-top: 3px;
  font-size: 0.66rem;
  line-height: 1.4;
  letter-spacing: 0.12em;
  color: var(--sage);
}

/* --------------------------------------------------------------------------
   移动顶栏
   -------------------------------------------------------------------------- */

.mk-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 16px 0 18px;
  background: rgba(8, 18, 15, 0.97);
  border-bottom: 1px solid var(--line);
}

.mk-topbar .mk-brand__line { font-size: 0.62rem; letter-spacing: 0.1em; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--line-strong);
  background: rgba(23, 51, 43, 0.55);
  color: var(--paper);
  font-family: var(--font-cond);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  transition: border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

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

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--signal);
  color: var(--signal);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   侧边索引轨道
   -------------------------------------------------------------------------- */

.mk-rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 70;
  width: min(84vw, 320px);
  display: flex;
  flex-direction: column;
  padding: 24px 0 22px;
  background-color: var(--ink-950);
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(143, 168, 154, 0) 0,
    rgba(143, 168, 154, 0) 39px,
    rgba(143, 168, 154, 0.055) 39px,
    rgba(143, 168, 154, 0.055) 40px
  );
  border-right: 1px solid var(--line);
  overflow-y: auto;
  overscroll-behavior: contain;
  transform: translateX(-100%);
  transition: transform var(--t-base) var(--ease);
}

.site-header[data-open="true"] .mk-rail { transform: translateX(0); }

.mk-rail__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px 22px;
}

.rail-close {
  display: none;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  color: var(--paper-2);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.rail-close:hover { border-color: var(--signal); color: var(--signal); }

.rail-close__glyph {
  position: relative;
  width: 13px;
  height: 13px;
  display: block;
}

.rail-close__glyph::before,
.rail-close__glyph::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
}

.rail-close__glyph::before { transform: rotate(45deg); }
.rail-close__glyph::after { transform: rotate(-45deg); }

.rail-label {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 18px 12px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--sage);
  max-width: none;
}

.rail-label::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--signal);
  flex: 0 0 auto;
}

.rail-nav { padding: 0 12px; }

.rail-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail-nav__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  padding: 11px 12px;
  border-left: 3px solid transparent;
  color: var(--paper-2);
  font-size: 0.92rem;
  line-height: 1.35;
  transition: background-color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.rail-nav__link:hover {
  background: var(--ink-800);
  border-left-color: var(--ink-700);
  color: var(--paper);
}

.rail-nav__link[aria-current="page"] {
  background: var(--ink-800);
  border-left-color: var(--signal);
  color: var(--paper);
}

.rail-nav__idx {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--sage);
  transition: color var(--t-fast) var(--ease);
}

.rail-nav__link:hover .rail-nav__idx { color: var(--cyan); }
.rail-nav__link[aria-current="page"] .rail-nav__idx { color: var(--signal); }

.rail-nav__text { min-width: 0; }

.rail-meta {
  margin-top: auto;
  padding: 20px 18px 4px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rail-meta__label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--sage);
  max-width: none;
}

.rail-meta__value {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
  max-width: none;
  margin-bottom: 4px;
}

/* --------------------------------------------------------------------------
   遮罩
   -------------------------------------------------------------------------- */

.mk-scrim {
  position: fixed;
  inset: 0;
  z-index: 65;
  background: rgba(8, 18, 15, 0.72);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease), visibility var(--t-base) var(--ease);
}

.site-header[data-open="true"] .mk-scrim {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1023px) {
  body.nav-open { overflow: hidden; }
  .rail-close { display: grid; }
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-align: center;
  transition: background-color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.btn--signal {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink-950);
}

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

.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--paper);
}

.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

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

/* --------------------------------------------------------------------------
   容器 / 网格
   -------------------------------------------------------------------------- */

.mk-container {
  width: 100%;
  max-width: var(--canvas);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

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

@media (min-width: 900px) {
  .mk-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .mk-span-4 { grid-column: span 4; }
  .mk-span-5 { grid-column: span 5; }
  .mk-span-7 { grid-column: span 7; }
  .mk-span-8 { grid-column: span 8; }
  .mk-span-12 { grid-column: span 12; }
}

/* --------------------------------------------------------------------------
   栏目索引头
   -------------------------------------------------------------------------- */

.section-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 40px;
}

.section-head__num {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--signal);
  max-width: none;
}

.section-head__num::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--signal);
  flex: 0 0 auto;
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--paper);
  max-width: 20em;
}

.section-head__lede {
  max-width: 36em;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--sage);
}

.section-head--paper .section-head__title { color: var(--text-ink); }
.section-head--paper .section-head__lede { color: #4A5A52; }
.section-head--paper .section-head__num { color: var(--signal); }

/* --------------------------------------------------------------------------
   面包屑
   -------------------------------------------------------------------------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--sage);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__sep {
  color: var(--ink-700);
  font-size: 0.7rem;
}

.breadcrumb__link {
  color: var(--paper-2);
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.breadcrumb__link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* --------------------------------------------------------------------------
   标签 / 叠层 / 纸面
   -------------------------------------------------------------------------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  background: rgba(23, 51, 43, 0.6);
  color: var(--paper-2);
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  line-height: 1.5;
  white-space: nowrap;
}

.tag--orange { border-color: rgba(255, 106, 43, 0.55); color: var(--signal); }

.tag--cyan { border-color: rgba(63, 227, 210, 0.5); color: var(--cyan); }

.tag--amber {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--text-ink);
}

.stack-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 9px;
  background: var(--paper-2);
  color: var(--text-ink);
  border: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.mk-sheet {
  background: var(--paper);
  color: var(--text-ink);
  padding-top: var(--step-md);
  padding-bottom: var(--step-md);
}

.mk-sheet .rule { background: var(--line-paper); }

/* --------------------------------------------------------------------------
   图片容器（页面阶段放置占位）
   -------------------------------------------------------------------------- */

.figure {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
}

.figure__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.figure__media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.figure__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(143, 168, 154, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 168, 154, 0.12) 1px, transparent 1px);
  background-size: 34px 34px;
  mix-blend-mode: screen;
  opacity: 0.55;
}

.figure--plain .figure__media::after { content: none; }

.figure--wide .figure__media { aspect-ratio: 21 / 9; }
.figure--tall .figure__media { aspect-ratio: 4 / 5; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }

.figure__caption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.mk-sheet .figure__caption { color: #56655D; }
.mk-sheet .figure__media { border-color: var(--line-paper); }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */

.site-footer {
  margin-top: var(--step-lg);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  color: var(--paper-2);
}

.footer-inner {
  width: 100%;
  max-width: var(--canvas);
  margin: 0 auto;
  padding: var(--step-md) var(--gutter) 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mk-brand--footer .mk-brand__mark { box-shadow: 3px 3px 0 0 var(--paper-2); }

.mk-brand--footer:hover .mk-brand__mark {
  background: var(--signal);
  box-shadow: 3px 3px 0 0 var(--paper-2);
}

.footer-claim {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--paper-2);
  max-width: 26em;
}

.footer-note {
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--sage);
  max-width: 30em;
}

.footer-note--sm { font-size: 0.74rem; }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-content: start;
}

.footer-col { display: flex; flex-direction: column; gap: 14px; }

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--sage);
}

.footer-col__title::before {
  content: "";
  width: 12px;
  height: 1px;
  background: var(--signal);
  flex: 0 0 auto;
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col__link {
  position: relative;
  display: inline-block;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--paper-2);
  transition: color var(--t-fast) var(--ease);
}

.footer-col__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-fast) var(--ease);
}

.footer-col__link:hover { color: var(--cyan); }
.footer-col__link:hover::after { transform: scaleX(1); }

.footer-contact { display: flex; flex-direction: column; gap: 14px; }

.footer-contact__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact__list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--sage);
}

.footer-contact__val {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--paper-2);
  word-break: break-word;
}

.footer-base {
  max-width: var(--canvas);
  margin: 0 auto;
  padding: 22px var(--gutter) 36px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.footer-base__copy { max-width: none; }

.footer-base__icp {
  max-width: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 640px) {
  .footer-inner { gap: 48px 40px; }
}

@media (min-width: 768px) {
  .footer-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 519px) {
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1120px) {
  .footer-inner {
    grid-template-columns: 1.15fr 1.5fr 0.95fr;
    gap: 56px;
    padding-bottom: 64px;
  }
  .footer-brand { grid-column: auto; }
}

/* --------------------------------------------------------------------------
   桌面断点：轨道常驻
   -------------------------------------------------------------------------- */

@media (min-width: 1024px) {
  body {
    padding-top: 0;
    padding-left: var(--rail-w);
  }

  .mk-topbar { display: none; }

  .mk-rail {
    width: var(--rail-w);
    transform: none;
  }

  .mk-scrim { display: none; }

  .rail-close { display: none; }
}

/* --------------------------------------------------------------------------
   动效偏好
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .scroll-meter__bar { transition: none; }
}