:root {
  --y-bg: #0B1026;
  --y-surface: #1E2440;
  --y-overlay: #1E2440CC;
  --y-accent: #39FF14;
  --y-signal: #FF6B00;
  --y-text: #E6E9F0;
  --y-muted: #A0A6B8;
  --y-border: #2E3A59;
  --y-accent-dim: #1E5C1E;
  --y-signal-dim: #A33C00;
  --y-font-head: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --y-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --y-font-mono: "Roboto Mono", "Consolas", monospace;
  --y-rail-w: 84px;
  --y-header-h: 64px;
  --y-header-mobile-h: 60px;
  --y-max: 1280px;
  --y-gap: 24px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--y-bg);
  color: var(--y-text);
  font-family: var(--y-font-body);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

ul[class], ol[class] {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--y-font-head);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

::selection {
  background: var(--y-accent);
  color: var(--y-bg);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--y-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--y-border);
  border: 2px solid var(--y-bg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--y-accent);
}

:focus-visible {
  outline: 2px solid var(--y-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: calc(var(--y-rail-w) + 20px);
  z-index: 1200;
  font-family: var(--y-font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--y-bg);
  background: var(--y-accent);
  border: 1px solid var(--y-accent);
  padding: 10px 18px;
  transform: translateY(-300%);
  transition: transform 0.25s ease;
  pointer-events: auto;
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--y-bg);
  outline-offset: -2px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  pointer-events: none;
  isolation: isolate;
}

.brand-rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--y-rail-w);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  padding: 28px 0 20px;
  background-color: var(--y-bg);
  border-right: 1px solid var(--y-border);
  pointer-events: auto;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header[data-scrolled="true"] .brand-rail {
  box-shadow: inset -1px 0 0 rgba(57, 255, 20, 0.5);
}

.brand-rail__mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 0;
}

.brand-rail__mark:hover .brand-rail__cn {
  color: var(--y-accent);
}

.brand-rail__cn {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--y-font-head);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--y-text);
  transition: color 0.2s ease;
}

.brand-rail__divider {
  width: 14px;
  height: 1px;
  background: var(--y-signal);
  transform: rotate(45deg);
  margin: 4px 0;
}

.brand-rail__en {
  writing-mode: vertical-rl;
  font-family: var(--y-font-mono);
  font-size: 9px;
  letter-spacing: 0.42em;
  color: var(--y-muted);
  text-transform: uppercase;
}

.brand-rail__tag {
  margin-top: auto;
  margin-bottom: 28px;
  writing-mode: vertical-rl;
  font-family: var(--y-font-mono);
  font-size: 9px;
  letter-spacing: 0.4em;
  color: var(--y-muted);
  opacity: 0.65;
}

.brand-rail__tempo {
  display: inline-block;
  min-width: 44px;
  margin-bottom: 8px;
  padding: 6px 5px;
  font-family: var(--y-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--y-accent);
  background: rgba(30, 36, 64, 0.65);
  border: 1px solid var(--y-border);
  border-radius: 2px;
}

.header-bar {
  position: fixed;
  top: 0;
  left: var(--y-rail-w);
  right: 0;
  height: var(--y-header-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px;
  background: transparent;
  border-bottom: 1px solid transparent;
  pointer-events: none;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.header-bar > * {
  pointer-events: auto;
}

.site-header[data-scrolled="true"] .header-bar {
  background: rgba(11, 16, 38, 0.94);
  border-bottom-color: var(--y-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
  pointer-events: auto;
}

.site-nav {
  flex: 1;
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--y-text);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link__idx {
  font-family: var(--y-font-mono);
  font-size: 10px;
  line-height: 1;
  color: var(--y-muted);
  transition: color 0.2s ease;
}

.nav-link__text {
  line-height: 1;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 5px;
  height: 2px;
  background: linear-gradient(90deg, var(--y-accent), var(--y-signal));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--y-text);
}

.nav-link:hover .nav-link__idx,
.nav-link[aria-current="page"] .nav-link__idx {
  color: var(--y-accent);
}

.nav-link[aria-current="page"] .nav-link__text {
  font-weight: 700;
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-quick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--y-muted);
  border: 1px solid var(--y-border);
  border-radius: 2px;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.header-quick::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  flex-shrink: 0;
  background: var(--y-accent);
  transform: rotate(45deg);
  transition: background-color 0.2s ease;
}

.header-quick--signal::before {
  background: var(--y-signal);
  border-radius: 50%;
  transform: none;
}

.header-quick:hover {
  color: var(--y-text);
  border-color: var(--y-accent);
  background-color: rgba(57, 255, 20, 0.05);
}

.header-quick--signal:hover {
  border-color: var(--y-signal);
  background-color: rgba(255, 107, 0, 0.05);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  font-family: var(--y-font-mono);
  font-size: 13px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--y-text);
  background: transparent;
  border: 1px solid var(--y-border);
  border-radius: 2px;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  background: var(--y-accent);
  border-color: var(--y-accent);
  color: var(--y-bg);
}

.btn--primary:hover {
  background: transparent;
  color: var(--y-accent);
  animation: y-pulse 0.35s ease-out;
}

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

.btn--signal {
  background: var(--y-signal);
  border-color: var(--y-signal);
  color: var(--y-bg);
}

.btn--signal:hover {
  background: transparent;
  color: var(--y-signal);
  box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.2);
}

@keyframes y-pulse {
  0% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.5); }
  100% { box-shadow: 0 0 0 12px rgba(57, 255, 20, 0); }
}

.nav-toggle {
  position: relative;
  z-index: 20;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--y-text);
  border: 1px solid var(--y-border);
  border-radius: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  width: 18px;
}

.nav-toggle__bar {
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.tempo-meter {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 1200;
  background: rgba(30, 36, 64, 0.55);
  pointer-events: none;
}

.tempo-meter__fill {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--y-accent), var(--y-signal));
  transition: width 90ms linear;
}

.main-content {
  flex: 1 0 auto;
  min-height: 70vh;
  margin-left: var(--y-rail-w);
  position: relative;
  overflow-x: hidden;
}

#main-content {
  scroll-margin-top: calc(var(--y-header-h) + 16px);
}

.container {
  width: 100%;
  max-width: var(--y-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.grid {
  display: grid;
  gap: 16px;
}

.page-head {
  padding: calc(var(--y-header-h) + 42px) 0 28px;
}

.page-head__title {
  margin-bottom: 12px;
}

.page-head__lead {
  max-width: 46em;
  color: var(--y-muted);
  font-size: 16px;
}

.breadcrumb {
  margin-top: 24px;
  padding: 0;
  font-family: var(--y-font-mono);
  font-size: 12px;
  color: var(--y-muted);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb a {
  color: var(--y-muted);
  padding: 4px 0;
  border-bottom: 1px dashed transparent;
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--y-accent);
  border-bottom-color: var(--y-accent);
}

.breadcrumb__sep {
  margin: 0 8px;
  color: var(--y-border);
}

.card {
  position: relative;
  background: var(--y-surface);
  border: 1px solid var(--y-border);
  padding: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--y-accent);
  box-shadow: 4px 4px 0 rgba(57, 255, 20, 0.08);
}

.card__idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--y-accent);
}

.chapter-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
  background: var(--y-surface);
  border: 1px solid var(--y-border);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.chapter-card:hover {
  border-color: var(--y-accent);
  box-shadow: 4px 4px 0 rgba(57, 255, 20, 0.1);
}

.chapter-card__idx {
  font-family: var(--y-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--y-accent);
}

.chapter-card__title {
  margin: 0;
  font-size: 22px;
  font-weight: 900;
  line-height: 1.3;
}

.chapter-card__desc {
  color: var(--y-muted);
  font-size: 14px;
  line-height: 1.8;
}

.chapter-card__arrow {
  margin-top: auto;
  font-family: var(--y-font-mono);
  font-size: 14px;
  color: var(--y-signal);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--y-accent);
}

.section-label::after {
  content: "";
  width: 44px;
  height: 1px;
  background: linear-gradient(90deg, var(--y-accent), transparent);
}

.display-title {
  font-family: var(--y-font-head);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.15;
  font-style: italic;
  transform: skewX(-4deg);
  transform-origin: left bottom;
}

.stat-number {
  font-family: var(--y-font-mono);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--y-text);
}

.stat-number__accent {
  color: var(--y-accent);
}

.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.06), rgba(255, 107, 0, 0.04)),
    var(--y-surface);
  border: 1px solid var(--y-border);
}

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

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

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--y-header-h) + 40px) 20px 56px;
  background: var(--y-bg);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(-45deg, transparent 0 46px, rgba(57, 255, 20, 0.045) 46px 47px, transparent 47px 92px),
    repeating-linear-gradient(45deg, transparent 0 66px, rgba(255, 107, 0, 0.035) 66px 67px, transparent 67px 134px);
}

.hero > * {
  position: relative;
  z-index: 1;
}

.site-footer {
  position: relative;
  flex-shrink: 0;
  margin-left: var(--y-rail-w);
  padding-top: 48px;
  background: var(--y-bg);
  border-top: 1px solid var(--y-border);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: repeating-linear-gradient(
    -45deg,
    var(--y-accent) 0 6px,
    transparent 6px 18px,
    var(--y-signal) 18px 24px,
    transparent 24px 40px
  );
  opacity: 0.7;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.6fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo__cn {
  font-family: var(--y-font-head);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--y-text);
  transition: color 0.2s ease;
}

.footer-logo:hover .footer-logo__cn {
  color: var(--y-accent);
}

.footer-logo__en {
  font-family: var(--y-font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.18em;
  color: var(--y-muted);
  border-left: 1px solid var(--y-border);
  padding-left: 10px;
}

.footer-tagline {
  max-width: 30em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--y-muted);
}

.footer-nav__title,
.footer-contact__title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--y-muted);
  border-bottom: 1px dashed var(--y-border);
}

.footer-nav__idx {
  color: var(--y-accent);
}

.footer-contact__idx {
  color: var(--y-signal);
}

.footer-nav__list li + li {
  margin-top: 6px;
}

.footer-nav__list a {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  color: var(--y-muted);
  border-bottom: 1px dashed transparent;
  transition: color 0.2s ease, border-bottom-color 0.2s ease, padding-left 0.2s ease;
}

.footer-nav__list a:hover {
  color: var(--y-accent);
  border-bottom-color: var(--y-accent);
  padding-left: 4px;
}

.footer-contact__item {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--y-muted);
  word-break: break-word;
}

.footer-contact__link {
  color: var(--y-muted);
  border-bottom: 1px dashed var(--y-border);
  transition: color 0.2s ease, border-bottom-color 0.2s ease;
}

.footer-contact__link:hover {
  color: var(--y-accent);
  border-bottom-color: var(--y-accent);
}

.footer-contact__item--note {
  margin-top: 10px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  opacity: 0.75;
}

.footer-bottom {
  margin-top: 24px;
  padding: 18px 0 24px;
  border-top: 1px solid var(--y-border);
}

.footer-bottom__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  font-family: var(--y-font-mono);
  font-size: 12px;
  color: var(--y-muted);
}

body[data-nav-open="true"] {
  overflow: hidden;
}

body[data-nav-open="true"]::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 998;
  background: rgba(11, 16, 38, 0.6);
}

@media (max-width: 1280px) {
  .header-quick {
    display: none;
  }
}

@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }

  .brand-rail {
    top: 0;
    left: 0;
    right: auto;
    bottom: auto;
    width: auto;
    height: var(--y-header-mobile-h);
    flex-direction: row;
    align-items: center;
    gap: 8px;
    padding: 0 14px;
    border-right: none;
    border-bottom: 1px solid var(--y-border);
  }

  .brand-rail__mark {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    padding: 0;
  }

  .brand-rail__cn {
    writing-mode: horizontal-tb;
    font-size: 17px;
    letter-spacing: 0.08em;
  }

  .brand-rail__divider {
    width: 1px;
    height: 14px;
    transform: none;
    margin: 0;
  }

  .brand-rail__en {
    writing-mode: horizontal-tb;
    font-size: 9px;
    letter-spacing: 0.24em;
  }

  .brand-rail__tag,
  .brand-rail__tempo {
    display: none;
  }

  .header-bar {
    left: 0;
    right: 0;
    height: var(--y-header-mobile-h);
    justify-content: flex-end;
    gap: 10px;
    padding: 0 12px;
  }

  .main-content,
  .site-footer {
    margin-left: 0;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    width: min(420px, 88vw);
    flex: none;
    display: block;
    margin: 0;
    padding: calc(var(--y-header-mobile-h) + 24px) 28px 32px;
    background:
      repeating-linear-gradient(-45deg, transparent 0 40px, rgba(57, 255, 20, 0.03) 40px 41px, transparent 41px 84px),
      var(--y-bg);
    border-left: 1px solid var(--y-border);
    box-shadow: -24px 0 48px rgba(0, 0, 0, 0.35);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.25s ease, visibility 0.25s;
    overflow-y: auto;
    pointer-events: auto;
  }

  .site-nav[data-open="true"] {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list__item {
    border-bottom: 1px dashed var(--y-border);
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 4px;
    font-size: 20px;
    font-weight: 700;
  }

  .nav-link__idx {
    font-size: 12px;
  }

  .nav-link::after {
    left: 4px;
    right: auto;
    bottom: 6px;
    width: 0;
    height: 3px;
    transition: width 0.2s ease;
  }

  .nav-link:hover::after,
  .nav-link[aria-current="page"]::after {
    width: 56px;
    transform: none;
  }

  .skip-link {
    left: 16px;
  }
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .header-bar {
    gap: 8px;
    padding: 0 8px;
  }

  .brand-rail {
    padding: 0 10px;
  }

  .brand-rail__en,
  .brand-rail__divider {
    display: none;
  }

  .btn--primary {
    padding: 9px 10px;
    font-size: 12px;
  }

  .nav-toggle {
    padding: 7px 8px;
  }
}

@media (min-width: 768px) {
  .grid {
    gap: 24px;
  }

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

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

  .container {
    padding-inline: 32px;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  html:focus-within {
    scroll-behavior: auto;
  }

  .site-nav,
  .tempo-meter__fill {
    transition: none !important;
  }
}