:root {
  --color-surface: #eaebeb;
  --color-surface-alt: #e1e3e2;
  --color-surface-deep: #d5d7d6;
  --color-ink: #37433f;
  --color-ink-soft: #586963;
  --color-ink-muted: #71847d;
  --color-line: #cacdcc;
  --color-primary: #2e8463;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #d0ddd8;
  --color-accent: #c53aad;
  --color-accent-ink: #ffffff;
  --color-highlight: #e3cbe0;
  --color-focus: #b4279c;
  --color-contrast-surface: #0f1714;
  --color-contrast-ink: #e4e7e6;
  --color-contrast-line: #3e4542;
  --color-contrast-accent: #cb4eb5;
  --overlay-scrim: linear-gradient(180deg, rgba(15, 23, 20, 0.35) 0%, rgba(15, 23, 20, 0.72) 55%, rgba(15, 23, 20, 0.92) 100%);
  --font-heading: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 12.2px;
  --text-sm: 15.2px;
  --text-base: 17px;
  --text-lg: 21.2px;
  --text-xl: 26.6px;
  --text-2xl: 33.2px;
  --text-3xl: 41.5px;
  --text-4xl: 51.9px;
  --text-display: clamp(34px, 5.9vw, 75px);
  --text-figure: clamp(28px, 4.2vw, 54px);
  --weight-heading: 660;
  --weight-body: 400;
  --leading-body: 1.82;
  --leading-heading: 1.25;
  --tracking-heading: -0.008em;
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 999px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 1px 0 rgba(55, 67, 63, 0.12);
  --shadow-2: 0 2px 0 rgba(55, 67, 63, 0.18);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1120px;
  --measure: 70ch;
  --gutter: 16px;
  --section-y: 112px;
  --section-y-lg: 157px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 140px;
}

body {
  margin: 0;
  background-color: 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);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

figure { margin: 0; }

a {
  color: var(--color-primary);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }

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

ul, ol { margin: 0; padding: 0; }

[hidden] { display: none !important; }

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

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

/* ================= 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); }

strong { font-weight: var(--weight-heading); }

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.94em;
}

.display-title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.lede {
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.prose {
  max-width: var(--measure);
  font-family: "Noto Serif SC", "Songti SC", "SimSun", "Source Han Serif SC", Georgia, serif;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}
.prose h2,
.prose h3 {
  font-family: var(--font-heading);
  color: var(--color-ink);
}
.prose p { margin-bottom: var(--space-3); }

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

.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--tight { padding-block: var(--space-6); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.band { background-color: var(--color-surface); }
.band--alt { background-color: var(--color-surface-alt); }
.band--deep { background-color: var(--color-surface-deep); }
.band--contrast {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.band--contrast h1,
.band--contrast h2,
.band--contrast h3,
.band--contrast h4 { color: var(--color-contrast-ink); }
.band--contrast .eyebrow,
.band--contrast .lede { color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent); }
.band--contrast .section__head { border-bottom-color: var(--color-contrast-line); }

.slant-band {
  display: block;
  height: var(--space-6);
  background-color: var(--color-surface-alt);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.grid { display: grid; gap: var(--space-3); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

/* ================= 按钮 ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: 10px var(--space-3);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background-color 140ms linear, color 140ms linear, border-color 140ms linear;
}
.btn:hover {
  background-color: color-mix(in srgb, var(--color-primary) 82%, var(--color-contrast-surface));
  color: var(--color-primary-ink);
  text-decoration: none;
}
.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--ghost:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}
.btn--accent {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.btn--accent:hover { background-color: var(--color-focus); }
.btn--contrast {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}
.btn--contrast:hover {
  background-color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-ink);
}

/* ================= 面包屑 ================= */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: var(--space-2) 0;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}
.breadcrumb li { display: inline-flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin: 0 var(--space-1) 0 0;
  color: var(--color-line);
}
.breadcrumb a { color: var(--color-ink-soft); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-ink-muted); }

/* ================= 竖排 / 强调小块 ================= */
.vertical-tag {
  display: inline-block;
  margin: 0;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding: var(--space-1) 4px;
  background-color: var(--color-highlight);
  color: var(--color-ink-soft);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  line-height: 1.2;
  letter-spacing: 0.18em;
  white-space: nowrap;
}
.vertical-tag--contrast {
  background-color: var(--color-contrast-accent);
  color: var(--color-contrast-ink);
  border-left-color: var(--color-contrast-ink);
}

.mark-block {
  display: inline-block;
  padding: 2px 10px;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.mark-block--accent {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.mark-block--primary {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  background-color: var(--color-surface);
}

/* ================= 数字与比分条 ================= */
.stat { display: block; }
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}
.stat__label {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}
.band--contrast .stat__num { color: var(--color-contrast-accent); }
.band--contrast .stat__label { color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent); }

.score-rail {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.score-rail__track {
  flex: 1 1 auto;
  height: 6px;
  background-color: var(--color-primary-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.score-rail__fill {
  display: block;
  height: 100%;
  width: 100%;
  background-color: var(--color-primary);
}
.score-rail__fill--accent { background-color: var(--color-accent); }
.band--contrast .score-rail__track { background-color: var(--color-contrast-line); }
.band--contrast .score-rail__fill { background-color: var(--color-contrast-accent); }

/* ================= 图片容器 ================= */
.media-frame {
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}
.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 16 / 7; }
.media-frame--band { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-2) var(--space-3);
  background: var(--overlay-scrim);
  color: var(--color-contrast-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.media-frame__badge {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  padding: 2px 8px;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

/* ================= 卡片与筛选 ================= */
.card {
  padding: var(--space-3);
  background-color: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px var(--space-2);
  background-color: var(--color-surface);
  color: var(--color-ink-soft);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  transition: background-color 120ms linear, color 120ms linear, border-color 120ms linear;
}
.filter-chip:hover { color: var(--color-primary); border-color: var(--color-primary); }
.filter-chip[aria-pressed="true"] {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-focus);
}

[data-filter-item] { transition: opacity 120ms linear; }
[data-filter-item].is-collapsing { opacity: 0; }

/* ================= 显现 ================= */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 420ms ease, transform 420ms ease;
}
html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ================= 跳至主要内容 ================= */
.skip-link {
  position: fixed;
  left: var(--space-2);
  top: -5rem;
  z-index: 95;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: top 140ms ease;
}
.skip-link:focus { top: var(--space-2); text-decoration: none; }

/* ================= 头部 ================= */
.site-header {
  --scroll-progress: 0;
  position: sticky;
  top: 0;
  z-index: 70;
  background-color: color-mix(in srgb, var(--color-surface) 94%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-top: var(--border-thick) solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-line);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--border-thick);
  background-color: var(--color-accent);
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left center;
  pointer-events: none;
}

.header-shell {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-left: var(--border-thin) solid var(--color-primary);
  border-right: var(--border-thin) solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-primary);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
}
.brand__text { display: block; }
.brand__name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.15;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}
.brand__meta {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
}

.brand-tagline {
  margin: 0;
  max-width: 15ch;
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.header-bar .vertical-tag { margin-left: auto; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
  min-height: 44px;
  padding: 8px var(--space-2);
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
}
.nav-toggle__label { line-height: 1; }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background-color: currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background-color: currentColor;
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.nav-toggle[aria-expanded="true"] {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-inline: var(--space-2);
  border-left: var(--border-thin) solid var(--color-primary);
  border-right: var(--border-thin) solid var(--color-primary);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
}
.nav-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: var(--space-2);
  border-bottom: var(--border-thick) solid transparent;
  color: var(--color-ink-soft);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: color 140ms linear, border-color 140ms linear;
}
.nav-list a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary-soft);
  text-decoration: none;
}
.nav-list a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.nav-list__idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-ink-muted);
}
.nav-list a[aria-current="page"] .nav-list__idx { color: var(--color-accent); }

.util-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: var(--space-1) 0;
}
.util-chip {
  display: inline-block;
  padding: 3px 10px;
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 26%, transparent);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}

/* ================= 页脚 ================= */
.site-footer {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thick) solid var(--color-primary);
  padding-block: var(--space-8) var(--space-4);
}
.footer-shell {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}
.footer-ident { min-width: 0; }
.footer-brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}
.footer-brand__sub {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}
.footer-col__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
}
.footer-links {
  display: grid;
  gap: var(--space-1);
  list-style: none;
}
.footer-links a {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  border-bottom: var(--border-thin) solid transparent;
}
.footer-links a:hover {
  color: var(--color-contrast-accent);
  border-bottom-color: var(--color-contrast-accent);
  text-decoration: none;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding-block: var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}
.footer-contact__item { margin: 0; }
.footer-contact__key {
  display: inline-block;
  margin-right: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-accent);
}
.footer-contact__item--note {
  flex-basis: 100%;
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.footer-brand,
.footer-brand__sub,
.footer-col__title,
.footer-contact__item,
.footer-legal { overflow-wrap: anywhere; }

/* ================= 响应式 ================= */
@media (max-width: 1024px) {
  .brand-tagline { display: none; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  html { scroll-padding-top: 108px; }

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

  .header-bar {
    gap: var(--space-2);
    padding-inline: var(--space-2);
    border-left: 0;
    border-right: 0;
  }
  .header-bar .vertical-tag { display: none; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    display: none;
    border-left: 0;
    border-right: 0;
    padding-inline: var(--space-2);
  }
  .site-nav[data-open] {
    display: block;
    padding-block: var(--space-1);
  }
  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-list a {
    display: flex;
    justify-content: flex-start;
    padding: var(--space-2) 0;
    font-size: var(--text-base);
    border-bottom: var(--border-thin) solid var(--color-line);
    border-left: var(--border-thick) solid transparent;
    padding-left: var(--space-2);
  }
  .nav-list a:hover,
  .nav-list a[aria-current="page"] {
    border-bottom-color: var(--color-line);
    border-left-color: var(--color-primary);
  }
  .util-list { padding: var(--space-2) 0 var(--space-1); }
}

@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .brand__name { font-size: var(--text-base); }
  .brand__mark { width: 34px; height: 34px; font-size: var(--text-base); }
  .footer-legal { flex-direction: column; }
  .grid--12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

/* ================= 减弱动效 ================= */
@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;
  }
  html.js [data-reveal] { opacity: 1; transform: none; }
  [data-filter-item],
  [data-filter-item].is-collapsing { opacity: 1; transition: none; }
  .site-header::after { transition: none; }
}