/* ==========================================================================
   浩瀚体育 · afterwork-haohan.com.cn
   共享样式表 /assets/site.css
   底色：深夜蓝黑 / 客场：荧光青绿 / 主场：琥珀橙 / 当前轮：亮金
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ol, ul {
  margin: 0;
  padding: 0;
}

ol, ul { list-style: none; }

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
}

button { cursor: pointer; }

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

:focus-visible {
  outline: 2px solid #2BE0B8;
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: rgba(43, 224, 184, .28);
  color: #E8F1F0;
}

/* ---------- 2. 设计变量 ---------- */
:root {
  --ink-900: #070B12;
  --ink-800: #0E1620;
  --ink-700: #14202B;
  --ink-600: #1B2A36;
  --paper: #E8F1F0;
  --muted: #8FA3A8;
  --cyan: #2BE0B8;
  --amber: #FF8A3D;
  --gold: #FFD166;
  --wine: #7A3B5A;
  --indigo: #3E2E6B;
  --teal: #1E7A6B;
  --pitch: #0D3B2E;

  --home: #FF8A3D;
  --away: #2BE0B8;
  --now: #FFD166;
  --past: rgba(143, 163, 168, .55);

  --rail: 88px;
  --bar: 64px;
  --wrap-max: 1180px;
  --gutter: clamp(20px, 4vw, 40px);
  --radius: 3px;

  --glass: rgba(14, 22, 32, .55);
  --glass-deep: rgba(7, 11, 18, .94);
  --hair: rgba(143, 163, 168, .18);
  --hair-strong: rgba(143, 163, 168, .3);
  --hair-cyan: rgba(43, 224, 184, .28);
  --hair-amber: rgba(255, 138, 61, .32);

  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Mono",
    Menlo, Consolas, "Liberation Mono", monospace;
}

/* ---------- 3. 中文正文基座 ---------- */
body {
  min-height: 100vh;
  margin: 0;
  padding-left: var(--rail);
  padding-top: var(--bar);
  background-color: #070B12;
  background-image:
    linear-gradient(to right, rgba(232, 241, 240, .035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(232, 241, 240, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  background-attachment: fixed;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
  letter-spacing: .01em;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

p { max-width: 38em; }

#main-content {
  display: block;
  scroll-margin-top: calc(var(--bar) + 20px);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: var(--rail);
  z-index: 99;
  padding: 11px 20px;
  background: var(--cyan);
  color: #04120E;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  border-radius: 0 0 3px 0;
  transform: translateY(-130%);
  transition: transform .18s ease;
}

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

/* ---------- 5. 左侧品牌轨道 ---------- */
.brand-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 60;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 14px 0 22px;
  background: linear-gradient(180deg, rgba(14, 22, 32, .97), rgba(7, 11, 18, .99));
  border-right: 1px solid var(--hair-cyan);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.brand-rail__mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  width: 64px;
  padding: 9px 4px 8px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: rgba(43, 224, 184, .06);
  transition: border-color .2s ease, background .2s ease;
}

.brand-rail__mark:hover {
  border-color: var(--cyan);
  background: rgba(43, 224, 184, .13);
}

.brand-rail__abbr {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.2;
  color: var(--paper);
}

.brand-rail__latin {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.rail-nav {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  overflow-y: auto;
  scrollbar-width: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.rail-nav::-webkit-scrollbar { display: none; }

.rail-nav__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
}

.rail-nav__item {
  display: grid;
  place-items: center;
  width: 38px;
  height: 26px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
  color: var(--muted);
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.rail-nav__item:hover {
  color: var(--paper);
  border-color: var(--hair-strong);
}

.rail-nav__item[aria-current="page"] {
  color: #04120E;
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.rail-progress {
  flex: 0 0 auto;
  width: 3px;
  height: clamp(72px, 22vh, 180px);
  border-radius: 2px;
  background: rgba(143, 163, 168, .16);
  overflow: hidden;
}

.rail-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
  transform-origin: top center;
  transform: scaleY(var(--rail-progress, 0));
  transition: transform .18s linear;
}

/* ---------- 6. 顶部命令栏 ---------- */
.command-bar {
  position: fixed;
  top: 0;
  left: var(--rail);
  right: 0;
  z-index: 55;
  background: var(--glass);
  border-bottom: 1px solid var(--hair);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: background .24s ease, border-color .24s ease;
}

.command-bar__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.2vw, 30px);
  height: var(--bar);
  max-width: calc(var(--wrap-max) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
  transition: height .24s ease;
}

.command-bar__brandline {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-width: 0;
  max-width: none;
}

.command-bar__brand {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .06em;
  white-space: nowrap;
}

.command-bar__tagline {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
  white-space: nowrap;
}

.command-bar__current {
  display: none;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.command-bar[data-condensed] {
  background: var(--glass-deep);
  border-bottom-color: var(--hair-cyan);
}

.command-bar[data-condensed] .command-bar__inner { height: 52px; }

.command-bar[data-condensed] .command-bar__tagline { display: none; }

.command-bar[data-condensed] .command-bar__current { display: inline-block; }

.command-bar__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  display: block;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  transform-origin: left center;
  transform: scaleX(var(--scroll-progress, 0));
  transition: transform .1s linear;
}

/* ---------- 7. 主导航 ---------- */
.site-nav { min-width: 0; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid transparent;
  border-radius: 2px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: .03em;
  white-space: nowrap;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
  color: rgba(143, 163, 168, .8);
}

.site-nav__link:hover {
  color: var(--paper);
  background: rgba(43, 224, 184, .07);
  border-color: rgba(43, 224, 184, .25);
}

.site-nav__link[aria-current="page"] {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(43, 224, 184, .1);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

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

/* ---------- 8. 命令栏尾部 ---------- */
.command-bar__tail {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.round-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  max-width: none;
  padding: 5px 12px;
  border: 1px solid var(--hair-amber);
  border-radius: 999px;
  background: rgba(255, 138, 61, .08);
  font-size: 11px;
  letter-spacing: .12em;
  color: #FFD9BF;
  white-space: nowrap;
}

.round-chip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, .18);
  animation: chip-pulse 2.6s ease-in-out infinite;
}

@keyframes chip-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

.icon-toggle {
  padding: 6px 13px;
  border: 1px solid var(--hair);
  border-radius: 2px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .16em;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.icon-toggle:hover {
  color: var(--paper);
  border-color: var(--hair-cyan);
}

.icon-toggle[aria-pressed="true"] {
  color: #2A1503;
  background: var(--gold);
  border-color: var(--gold);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 7px 13px;
  border: 1px solid var(--hair-cyan);
  border-radius: 2px;
  color: var(--paper);
  font-size: 12px;
  letter-spacing: .16em;
  transition: color .2s ease, border-color .2s ease;
}

.nav-toggle__bars {
  position: relative;
  width: 16px;
  height: 10px;
  border-top: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.nav-toggle__bars::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: currentColor;
  transform: translateY(-50%);
  transition: opacity .2s ease;
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { opacity: 0; }

/* ---------- 9. 夜读模式 ---------- */
html[data-night="on"] body {
  background-color: #04070C;
  background-image:
    linear-gradient(to right, rgba(232, 241, 240, .022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(232, 241, 240, .022) 1px, transparent 1px);
}

html[data-night="on"] .command-bar,
html[data-night="on"] .brand-rail {
  background: rgba(4, 7, 12, .88);
}

html[data-night="on"] .media-frame {
  filter: brightness(.82) contrast(1.08);
}

/* ---------- 10. 通用容器与网格 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}

.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.stack > * + * { margin-top: var(--stack-gap, 20px); }

/* ---------- 11. 章节标题与索引 ---------- */
.sec-kicker {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.sec-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

/* ---------- 12. 面板 ---------- */
.panel {
  background: var(--ink-700);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: clamp(18px, 2.5vw, 28px);
}

.panel--glass {
  background: var(--glass);
  border-color: var(--hair-cyan);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.panel--wine {
  background: linear-gradient(90deg, rgba(122, 59, 90, .5), rgba(122, 59, 90, .07) 62%, transparent);
  border-color: rgba(122, 59, 90, .55);
}

.panel--indigo {
  background: linear-gradient(90deg, rgba(62, 46, 107, .55), rgba(62, 46, 107, .07) 62%, transparent);
  border-color: rgba(62, 46, 107, .6);
}

/* ---------- 13. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid rgba(43, 224, 184, .5);
  border-radius: 2px;
  background: rgba(43, 224, 184, .07);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: .06em;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.btn:hover {
  background: rgba(43, 224, 184, .15);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.btn--home {
  border-color: rgba(255, 138, 61, .55);
  background: rgba(255, 138, 61, .09);
}

.btn--home:hover {
  background: rgba(255, 138, 61, .18);
  border-color: var(--amber);
}

.btn--away {
  border-color: rgba(43, 224, 184, .5);
  background: rgba(43, 224, 184, .07);
}

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

.btn--ghost:hover {
  background: rgba(143, 163, 168, .1);
  border-color: var(--muted);
  color: var(--paper);
}

.btn--solid {
  background: var(--teal);
  border-color: var(--teal);
  color: #EAF6F3;
}

.btn--solid:hover {
  background: #248F7D;
  border-color: #248F7D;
}

/* ---------- 14. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.crumbs__link {
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

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

.crumbs__sep {
  color: rgba(143, 163, 168, .5);
}

.crumbs__current {
  color: var(--paper);
}

/* ---------- 15. 图例与标签 ---------- */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend__box {
  width: 9px;
  height: 9px;
  border-radius: 1px;
  background: var(--past);
  box-shadow: 0 0 0 1px rgba(232, 241, 240, .22);
}

.legend__box--home { background: var(--home); }
.legend__box--away { background: var(--away); }
.legend__box--now { background: var(--now); }
.legend__box--past { background: var(--past); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--hair);
  border-radius: 2px;
  background: rgba(20, 32, 43, .6);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .14em;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}

.tag:hover {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(43, 224, 184, .08);
  transform: translateY(-2px);
}

/* ---------- 16. 图像容器基础规则 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 22% 12%, rgba(13, 59, 46, .92), transparent 62%),
    linear-gradient(160deg, #16232E, #0A121A 72%);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--screen { aspect-ratio: 4 / 3; }

.media-frame > img,
.media-frame > video {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(43, 224, 184, .1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 224, 184, .1) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .6;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  height: 54%;
  pointer-events: none;
  background: linear-gradient(to top, rgba(7, 11, 18, .88), transparent);
}

.media-frame__caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 3;
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(232, 241, 240, .82);
}

/* ---------- 17. 入场显现（由 JS 武装） ---------- */
[data-reveal] {
  transition: opacity .32s ease-out, transform .32s ease-out;
}

[data-reveal-armed] {
  opacity: 0;
  transform: translateY(6px);
}

[data-reveal-armed][data-reveal-in] {
  opacity: 1;
  transform: none;
}

/* ---------- 18. 页脚 ---------- */
.site-footer {
  margin-top: clamp(64px, 10vw, 120px);
  padding: clamp(48px, 7vw, 88px) 0 0;
  border-top: 1px solid var(--hair-cyan);
  background: linear-gradient(180deg, rgba(14, 22, 32, .88), rgba(7, 11, 18, 1));
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1.25fr 1.45fr;
  gap: clamp(24px, 4vw, 48px);
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.footer-title {
  margin-bottom: 14px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-brand__mark {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .06em;
  max-width: none;
}

.footer-brand__line {
  margin-top: 12px;
  max-width: 28em;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(232, 241, 240, .74);
}

.footer-brand__meta {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
  max-width: none;
}

.footer-nav__list,
.footer-contact__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 14px;
}

.footer-nav__list a {
  color: rgba(232, 241, 240, .82);
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.footer-nav__list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.footer-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-tags__list li {
  padding: 4px 9px;
  border: 1px solid var(--hair);
  border-radius: 2px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

.footer-contact__list {
  color: rgba(232, 241, 240, .82);
  word-break: break-word;
}

.footer-contact__list .mono {
  color: var(--paper);
  font-size: 13px;
}

.footer-contact__note {
  margin-top: 16px;
  max-width: 30em;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  max-width: var(--wrap-max);
  margin: clamp(36px, 5vw, 64px) auto 0;
  padding: 18px var(--gutter) 28px;
  border-top: 1px solid rgba(143, 163, 168, .14);
  font-size: 13px;
  color: var(--muted);
}

.site-footer__copy,
.site-footer__closing {
  max-width: none;
}

/* ---------- 19. 响应式 ---------- */
@media (max-width: 1180px) {
  .command-bar__tagline { display: none; }
}

@media (max-width: 1080px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    row-gap: 36px;
  }
}

@media (max-width: 900px) {
  :root {
    --rail: 56px;
    --bar: 58px;
  }

  body {
    font-size: 16px;
    line-height: 1.85;
    background-size: 56px 56px;
  }

  .brand-rail {
    gap: 10px;
    padding: 10px 0 16px;
  }

  .brand-rail__mark {
    width: 44px;
    padding: 6px 2px;
  }

  .brand-rail__abbr { font-size: 12px; }

  .brand-rail__latin { display: none; }

  .rail-nav__item {
    width: 32px;
    height: 22px;
    font-size: 10px;
  }

  .rail-progress { width: 2px; }

  .command-bar__brandline { gap: 8px; }

  .command-bar__brand { font-size: 14px; }

  .round-chip { display: none; }

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

  .site-nav {
    position: fixed;
    top: var(--bar);
    left: var(--rail);
    right: 0;
    z-index: 54;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: rgba(7, 11, 18, .97);
    border-bottom: 1px solid var(--hair-cyan);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    transition: max-height .3s ease, visibility .3s ease;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--bar));
    overflow-y: auto;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 22px;
  }

  .site-nav__link {
    padding: 13px 8px;
    font-size: 15px;
    border-radius: 0;
    border-bottom: 1px solid rgba(143, 163, 168, .12);
  }

  .site-nav__link:hover {
    transform: none;
    background: rgba(43, 224, 184, .06);
    border-color: transparent;
    border-bottom-color: rgba(143, 163, 168, .12);
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(43, 224, 184, .1);
    border-color: transparent;
    border-bottom-color: rgba(143, 163, 168, .12);
    box-shadow: inset 3px 0 0 var(--cyan);
  }

  .grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
  }

  .col-4, .col-5, .col-7, .col-8, .col-12 { grid-column: span 6; }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    row-gap: 32px;
  }

  .grid { grid-template-columns: 1fr; }

  .col-4, .col-5, .col-6, .col-7, .col-8, .col-12 { grid-column: 1 / -1; }

  .site-footer__base {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---------- 20. 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-reveal-armed] {
    opacity: 1;
    transform: none;
  }
}