:root {
  --color-surface: #f8f7f7;
  --color-surface-alt: #efeeee;
  --color-surface-deep: #e3e2e1;
  --color-ink: #4c4442;
  --color-ink-soft: #746967;
  --color-ink-muted: #867b79;
  --color-line: #d9d7d6;
  --color-primary: #8f6e66;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #e9e4e3;
  --color-accent: #db3b15;
  --color-accent-ink: #ffffff;
  --color-highlight: #f3d5ce;
  --color-focus: #d32f08;
  --color-contrast-surface: #161413;
  --color-contrast-ink: #e7e5e4;
  --color-contrast-line: #444241;
  --color-contrast-accent: #e93e16;
  --overlay-scrim: linear-gradient(180deg, rgba(22, 20, 19, 0.35) 0%, rgba(22, 20, 19, 0.72) 55%, rgba(22, 20, 19, 0.92) 100%);
  --font-heading: STZhongsong, "Source Han Serif SC", "Songti SC", SimSun, serif;
  --font-body: "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 9.3px;
  --text-sm: 13.9px;
  --text-base: 17px;
  --text-lg: 25.5px;
  --text-xl: 38.2px;
  --text-2xl: 57.4px;
  --text-3xl: 86.1px;
  --text-4xl: 129.1px;
  --text-display: clamp(43px, 8.8vw, 112px);
  --text-figure: clamp(36px, 6.3vw, 81px);
  --weight-heading: 472;
  --weight-body: 400;
  --leading-body: 1.8;
  --leading-heading: 1.2;
  --tracking-heading: 0.008em;
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --radius-pill: 0px;
  --border-thin: 1px;
  --border-thick: 1px;
  --shadow-1: none;
  --shadow-2: none;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1220px;
  --measure: 65ch;
  --gutter: 24px;
  --section-y: 134px;
  --section-y-lg: 188px;
}

/* ========== reset ========== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-block-start: var(--space-6); }
body, h1, h2, h3, h4, h5, h6, 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%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

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

/* ========== 基础排版 ========== */
body {
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  letter-spacing: 0.01em;
  overflow-x: hidden;
}
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}
h4, h5, h6 { font-size: var(--text-base); line-height: 1.5; font-weight: 600; }
strong { font-weight: 600; }
.num, .figure-num, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.figure-num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
.section--deep .figure-num { color: var(--color-contrast-ink); }

/* ========== 布局 ========== */
.container { width: min(100% - (var(--gutter) * 2), var(--container)); margin-inline: auto; }
.container--narrow { width: min(100% - (var(--gutter) * 2), 780px); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--alt { background: var(--color-surface-alt); }
.section--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.section--deep h1, .section--deep h2, .section--deep h3 { color: var(--color-contrast-ink); }
.section__head { display: grid; gap: var(--space-3); margin-block-end: var(--space-6); }
.section__mark {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
  transition: color 0.24s ease;
}
.section__title { font-size: clamp(26px, 3.4vw, var(--text-xl)); max-width: 24ch; }
.section__lede { font-size: var(--text-lg); line-height: 1.6; color: var(--color-ink-soft); max-width: 48ch; }
.section--deep .section__mark { color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent); }
.section--deep .section__lede { color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent); }
[data-section][data-current] .section__mark { color: var(--color-accent); }
.section--deep[data-section][data-current] .section__mark { color: var(--color-contrast-accent); }

.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--gutter); }
.grid--tight { gap: var(--space-2); }
.grid--wide { gap: var(--space-6); }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

.prose { max-width: var(--measure); }
.prose > p + p { margin-block-start: var(--space-3); }
.prose h2 { margin-block-start: var(--space-6); font-size: var(--text-lg); }
.prose h3 { margin-block-start: var(--space-4); font-family: var(--font-body); font-size: var(--text-base); font-weight: 600; }
.prose ul, .prose ol { display: grid; gap: var(--space-2); margin-block-start: var(--space-3); }
.prose li { position: relative; padding-inline-start: var(--space-3); }
.prose li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--color-primary);
}
.lede { font-size: var(--text-lg); line-height: 1.6; color: var(--color-ink-soft); max-width: 46ch; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.section--deep .eyebrow { color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent); }

/* ========== 头部 ========== */
.progress-track {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: 2px;
  background: color-mix(in srgb, var(--color-line) 60%, transparent);
  z-index: 90;
  pointer-events: none;
}
.progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--color-accent);
  transition: width 0.12s linear;
}
.skip-link {
  position: absolute;
  inset-inline-start: var(--space-3);
  inset-block-start: var(--space-2);
  z-index: 80;
  padding: var(--space-2) var(--space-3);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  transform: translateY(-220%);
  transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 40;
  background: var(--color-surface);
  border-block-end: var(--border-thin) solid var(--color-line);
}
.masthead { padding-block: var(--space-4) var(--space-3); }
.masthead__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-3);
}
.masthead__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
}
.brand {
  grid-column: 2;
  display: grid;
  justify-items: center;
  gap: var(--space-1);
  text-align: center;
}
.brand__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(28px, 3.6vw, var(--text-xl));
  line-height: 1.05;
  letter-spacing: 0.08em;
  color: var(--color-ink);
}
.brand__plate {
  font-size: var(--text-xs);
  letter-spacing: 0.34em;
  color: var(--color-ink-soft);
}
.masthead__entry {
  justify-self: end;
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: var(--color-accent);
  padding-block-end: 2px;
  border-block-end: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 42%, transparent);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.masthead__entry:hover { color: var(--color-focus); border-block-end-color: var(--color-focus); }

/* ========== 导航 ========== */
.site-nav {
  background: var(--color-surface);
  border-block-start: var(--border-thin) solid var(--color-line);
}
.site-nav__inner { display: flex; align-items: center; justify-content: center; }
.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(var(--space-3), 2.8vw, var(--space-6));
  padding-block: var(--space-2);
}
.nav-link {
  display: block;
  padding-block: var(--space-1);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  color: var(--color-ink-soft);
  border-block-end: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-link:hover { color: var(--color-ink); }
.nav-link[aria-current="page"] { color: var(--color-focus); border-block-end-color: var(--color-focus); }
.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--color-ink-soft);
}
.nav-toggle__bars { position: relative; display: block; width: 18px; height: 10px; }
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s ease;
}
.nav-toggle__bars::before { inset-block-start: 0; }
.nav-toggle__bars::after { inset-block-end: 0; }
.site-nav[data-open] .nav-toggle__bars::before { transform: translateY(4px) rotate(45deg); }
.site-nav[data-open] .nav-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }
.site-nav[data-open] .nav-toggle { color: var(--color-focus); }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--space-8) var(--space-6);
}
.footer__inner { display: grid; gap: var(--space-8); }
.footer__crest { display: grid; gap: var(--space-2); }
.footer__big {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: clamp(40px, 9vw, var(--text-3xl));
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
}
.footer__tagline { font-size: var(--text-lg); color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent); }
.footer__plate {
  font-size: var(--text-xs);
  letter-spacing: 0.28em;
  color: color-mix(in srgb, var(--color-contrast-ink) 54%, transparent);
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6) var(--space-4);
  padding-block-start: var(--space-6);
  border-block-start: var(--border-thin) solid var(--color-contrast-line);
}
.footer__col-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0.22em;
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
  margin-block-end: var(--space-3);
}
.footer__list { display: grid; gap: var(--space-2); }
.footer__link {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
  border-block-end: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer__link:hover { color: var(--color-contrast-accent); border-block-end-color: var(--color-contrast-accent); }
.footer__bottom {
  display: grid;
  gap: var(--space-2);
  padding-block-start: var(--space-6);
  border-block-start: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}
.footer__contact {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}
.footer__note { max-width: 62ch; color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent); }
.footer__legal, .footer__year {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: color-mix(in srgb, var(--color-contrast-ink) 50%, transparent);
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border: var(--border-thin) solid var(--color-primary);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover {
  background: color-mix(in srgb, var(--color-primary) 82%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-primary) 82%, var(--color-contrast-surface));
}
.btn--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.btn--accent:hover {
  background: color-mix(in srgb, var(--color-accent) 84%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-accent) 84%, var(--color-contrast-surface));
}
.btn--ghost { background: transparent; color: var(--color-ink); border-color: var(--color-line); }
.btn--ghost:hover { background: var(--color-primary-soft); border-color: var(--color-primary); color: var(--color-ink); }
.btn--deep { background: var(--color-contrast-surface); border-color: var(--color-contrast-surface); color: var(--color-contrast-ink); }
.btn--deep:hover { background: color-mix(in srgb, var(--color-contrast-surface) 76%, var(--color-primary)); border-color: transparent; }
.btn--text {
  padding: 0 0 2px;
  background: none;
  border: 0;
  border-block-end: var(--border-thin) solid var(--color-line);
  color: var(--color-ink-soft);
  letter-spacing: 0.12em;
}
.btn--text:hover { color: var(--color-focus); border-block-end-color: var(--color-focus); }

/* ========== 面包屑 ========== */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}
.breadcrumbs a { color: var(--color-ink-soft); border-block-end: 1px solid transparent; }
.breadcrumbs a:hover { color: var(--color-ink); border-block-end-color: var(--color-line); }
.breadcrumbs__sep { color: var(--color-line); }
.breadcrumbs [aria-current="page"] { color: var(--color-ink); }

/* ========== 图片容器 ========== */
.figure {
  position: relative;
  display: block;
  margin: 0;
  background: var(--color-surface-deep);
  overflow: hidden;
  border-radius: var(--radius-md);
}
.figure__media { display: block; width: 100%; height: 100%; }
.figure__media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.78) contrast(1.02); }
.figure--panorama { aspect-ratio: 21 / 9; }
.figure--wide { aspect-ratio: 16 / 9; }
.figure--square { aspect-ratio: 1 / 1; }
.figure--tall { aspect-ratio: 3 / 4; }
.figure--narrow { aspect-ratio: 4 / 5; }
.figure__scrim { position: absolute; inset: 0; background: var(--overlay-scrim); pointer-events: none; }
.figure__overlay {
  position: absolute;
  inset-inline: var(--space-4);
  inset-block-end: var(--space-4);
  z-index: 2;
  color: var(--color-primary-ink);
}
.figure__overlay h3, .figure__overlay p { color: var(--color-primary-ink); }
.figure__overlay h3 { font-size: var(--text-lg); }

/* ========== 展签 ========== */
.plate {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-block-start: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
  text-align: end;
}
.plate__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-ink-muted);
}
.plate__text { max-width: 44ch; }
.plate__more {
  display: block;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.24s ease, opacity 0.24s ease;
}
.plate:hover .plate__more,
.plate:focus-within .plate__more { max-height: 8em; opacity: 1; }
.section--deep .plate { color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent); }
.section--deep .plate__index { color: color-mix(in srgb, var(--color-contrast-ink) 48%, transparent); }

/* ========== 引述 ========== */
.quote {
  margin: 0;
  padding: var(--space-6) var(--space-6) var(--space-6) var(--space-8);
  background: color-mix(in srgb, var(--color-highlight) 58%, var(--color-surface));
}
.quote::before {
  content: "「";
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1;
  color: var(--color-primary);
  margin-block-end: var(--space-2);
}
.quote p { font-family: var(--font-heading); font-size: var(--text-lg); line-height: 1.55; max-width: var(--measure); }
.quote__source { margin-block-start: var(--space-3); font-family: var(--font-body); font-size: var(--text-sm); color: var(--color-ink-soft); }

/* ========== 数字与标签 ========== */
.data-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  border-block-start: var(--border-thin) solid var(--color-line);
}
.data-board__cell { padding: var(--space-4) var(--space-3); border-block-end: var(--border-thin) solid var(--color-line); }
.stat { display: grid; gap: var(--space-1); }
.stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
.stat__label { font-size: var(--text-sm); color: var(--color-ink-soft); }
.stat--accent .stat__value { color: var(--color-accent); }
.section--deep .data-board, .section--deep .data-board__cell { border-color: var(--color-contrast-line); }
.section--deep .stat__value { color: var(--color-contrast-ink); }
.section--deep .stat--accent .stat__value { color: var(--color-contrast-accent); }
.section--deep .stat__label { color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent); }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-soft);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
}
.section--deep .tag { background: color-mix(in srgb, var(--color-contrast-ink) 14%, transparent); color: var(--color-contrast-ink); }

/* ========== 技能树路径 ========== */
.path { display: grid; gap: var(--space-6); }
.path__node { position: relative; padding-inline-start: var(--space-6); }
.path__node::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.45em;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
}
.path__node::after {
  content: "";
  position: absolute;
  inset-inline-start: 5px;
  inset-block-start: 1.6em;
  width: 1px;
  height: calc(100% + var(--space-6) - 1em);
  background: var(--color-line);
}
.path__node:last-child::after { display: none; }
.path__title { font-size: var(--text-lg); font-family: var(--font-heading); }
.path__text { max-width: 52ch; color: var(--color-ink-soft); }
.section--deep .path__node::before { background: var(--color-contrast-accent); }
.section--deep .path__node::after { background: var(--color-contrast-line); }
.section--deep .path__text { color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent); }

/* ========== 分组切换 ========== */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  border-block-end: var(--border-thin) solid var(--color-line);
}
.tab {
  margin-block-end: -1px;
  padding-block: var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-ink-soft);
  border-block-end: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.tab:hover { color: var(--color-ink); }
.tab[aria-selected="true"] { color: var(--color-focus); border-block-end-color: var(--color-focus); }
.tab-panel { padding-block-start: var(--space-6); }
.tab-panel[hidden] { display: none; }

/* ========== 动效 ========== */
.is-js [data-reveal] { opacity: 0; transform: translateY(12px); transition: opacity 0.24s ease, transform 0.24s ease; }
.is-js [data-reveal][data-revealed] { opacity: 1; transform: none; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .span-3 { grid-column: span 6; }
  .span-4 { grid-column: span 6; }
  .span-8 { grid-column: span 12; }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .section { padding-block: calc(var(--section-y) * 0.62); }
  .section--lg { padding-block: calc(var(--section-y-lg) * 0.58); }
  .grid { gap: var(--space-3); }
  .span-3, .span-4, .span-6, .span-8 { grid-column: span 12; }
  .masthead { padding-block: var(--space-3) var(--space-2); }
  .masthead__inner { grid-template-columns: 1fr; justify-items: center; gap: var(--space-2); text-align: center; }
  .masthead__meta { display: none; }
  .brand { grid-column: 1; }
  .masthead__entry { justify-self: center; }
  .site-nav__inner { display: block; padding-block: var(--space-1); }
  .nav-toggle { display: flex; margin-inline: auto; }
  .nav-list { display: block; max-height: 0; overflow: hidden; padding-block: 0; transition: max-height 0.28s ease; }
  .site-nav[data-open] .nav-list { max-height: 480px; padding-block: var(--space-2) var(--space-3); }
  .nav-list li { text-align: center; }
  .nav-link { border-block-end: 0; padding-block: var(--space-2); }
  .nav-link[aria-current="page"] { border-block-end: 0; }
  .quote { padding: var(--space-4) var(--space-4) var(--space-4) var(--space-6); }
  .figure__overlay { inset-inline: var(--space-3); inset-block-end: var(--space-3); }
}
@media (max-width: 600px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4) var(--space-2); }
  .footer__big { letter-spacing: 0.04em; }
  .data-board { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}

/* ========== 无障碍与减弱动效 ========== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .is-js [data-reveal] { transform: none; }
  .progress-bar { transition: none; }
  .skip-link { transition: none; }
}