/* ============================================================
   乐动体育入口 — 共享站点样式 /assets/site.css
   夜场数据看台：墨绿基底 + 荧光青柠 + 暖橙标记
   ============================================================ */

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

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

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

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

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

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

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

button { background: none; border: 0; cursor: pointer; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #07130F;
  --stand: #0B1F1A;
  --board: #123129;
  --line: #1E5A47;
  --lime: #C8F45A;
  --lime-soft: #E9FFB0;
  --orange: #FF8A3D;
  --mint: #9FD3B8;
  --paper: #F4F8EF;
  --teal: #2F7D68;

  --rail: 178px;
  --shell: 1180px;
  --gutter: clamp(18px, 4vw, 44px);

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --font-display: "Oswald", "Barlow Condensed", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-soft: 0 18px 44px rgba(0, 0, 0, .42);
  --shadow-lime: 0 12px 28px rgba(200, 244, 90, .18);
}

/* ---------- 3. 中文排版基座 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    radial-gradient(1100px 620px at 84% -8%, rgba(200, 244, 90, .09), transparent 62%),
    radial-gradient(820px 560px at 2% 108%, rgba(47, 125, 104, .22), transparent 62%);
  background-attachment: fixed;
  padding-top: 66px;
  padding-left: 0;
  padding-bottom: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -.015em;
  line-height: 1.16;
  color: var(--paper);
}

p { text-wrap: pretty; }

strong { color: var(--lime-soft); font-weight: 700; }

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

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 8px;
}

#main-content {
  display: block;
  scroll-margin-top: 84px;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 240;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background: var(--lime);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-190%);
  transition: transform .22s var(--ease);
}

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

/* ---------- 5. 品牌组合 ---------- */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 4px;
  border-radius: var(--radius-md);
  transition: opacity .2s var(--ease);
}

.brand:hover { opacity: .86; }

.brand__mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.04em;
  box-shadow: 0 0 0 1px rgba(200, 244, 90, .34), 0 10px 22px rgba(200, 244, 90, .16);
}

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper);
  white-space: nowrap;
}

.brand__tag {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--mint);
  opacity: .9;
  white-space: nowrap;
}

/* ---------- 6. 头部：桌面侧边品牌轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 80;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 26px 14px 22px;
  background: linear-gradient(184deg, #0B1F1A 0%, #08170F 56%, #07130F 100%);
  border-right: 1px solid var(--line);
  overflow: visible;
}

.site-header::after {
  content: "";
  position: absolute;
  top: -70px;
  left: 50%;
  width: 210px;
  height: 340px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(200, 244, 90, .14), transparent 72%);
  pointer-events: none;
}

.rail-brand { position: relative; z-index: 1; }

/* 导航 */
.nav {
  position: relative;
  z-index: 1;
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
}

.nav__label {
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--mint);
  opacity: .68;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav__link {
  display: block;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
  color: #CFE7DA;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.nav__link:hover {
  background: var(--board);
  color: var(--lime-soft);
  transform: translateX(2px);
}

.nav__link[aria-current="page"] {
  background: var(--lime);
  color: var(--ink);
  font-weight: 700;
  box-shadow: var(--shadow-lime);
  transform: none;
}

.nav__pinned {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}

.nav__pinned .pill {
  width: 100%;
  justify-content: center;
  padding: 10px 12px;
  font-size: 13px;
}

.nav__utility {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 4px 8px 0;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mint);
  opacity: .84;
}

.nav__utility a { transition: color .2s var(--ease); }

.nav__utility a:hover { color: var(--lime); }

/* 移动导航按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  position: relative;
  z-index: 90;
  align-items: center;
  gap: 9px;
  padding: 9px 15px 9px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--board);
  color: var(--lime-soft);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

.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); }

/* 底部快捷条（桌面隐藏） */
.quickbar { display: none; }

/* 抽屉遮罩（桌面隐藏） */
.nav-scrim { display: none; }

/* ---------- 7. 通用按钮与胶囊 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}

.btn--primary {
  background: var(--lime);
  color: var(--ink);
  box-shadow: var(--shadow-lime);
}

.btn--primary:hover { background: var(--lime-soft); transform: translateY(-2px); }

.btn--ghost {
  border-color: var(--line);
  background: rgba(18, 49, 41, .5);
  color: var(--paper);
}

.btn--ghost:hover { border-color: var(--lime); color: var(--lime); transform: translateY(-2px); }

.btn--warm {
  background: var(--orange);
  color: #210F03;
}

.btn--warm:hover { background: #FFA163; transform: translateY(-2px); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.pill--lime { background: var(--lime); color: var(--ink); }
.pill--lime:hover { background: var(--lime-soft); }

.pill--ghost {
  border-color: rgba(159, 211, 184, .34);
  color: var(--lime-soft);
}

.pill--ghost:hover { border-color: var(--lime); color: var(--lime); }

.pill--warm {
  border-color: rgba(255, 138, 61, .42);
  background: rgba(255, 138, 61, .14);
  color: var(--orange);
}

.chip {
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(18, 49, 41, .46);
  color: var(--mint);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.chip:hover { border-color: rgba(200, 244, 90, .55); color: var(--lime-soft); }

.chip[aria-pressed="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

/* ---------- 8. 正文容器与标题 ---------- */
.page-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(34px, 5vw, 64px);
}

.section__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--lime);
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--lime);
}

.display {
  font-family: var(--font-display);
  font-size: clamp(44px, 10vw, 112px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: .96;
  color: var(--paper);
}

.display em {
  font-style: normal;
  color: var(--lime);
}

.section__title {
  font-size: clamp(28px, 4vw, 48px);
  letter-spacing: -.02em;
}

.lede {
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: #CFE7DA;
}

.vertical-note {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--mint);
  opacity: .82;
}

.note {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mint);
  opacity: .9;
}

/* ---------- 9. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mint);
}

.crumbs a { transition: color .2s var(--ease); }
.crumbs a:hover { color: var(--lime); }
.crumbs__sep { color: var(--line); }

/* ---------- 10. 网格与卡片 ---------- */
.grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  grid-template-columns: minmax(0, 1fr);
}

.grid--2 { grid-template-columns: minmax(0, 1fr); }
.grid--3 { grid-template-columns: minmax(0, 1fr); }

@media (min-width: 680px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 980px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--board), #0D241E 78%);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.card:hover {
  border-color: rgba(200, 244, 90, .42);
  transform: translateY(-3px);
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mint);
}

.card__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.3;
}

.card__body {
  font-size: 14px;
  line-height: 1.72;
  color: #C4DCCF;
}

.card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
  border-bottom: 1px solid rgba(200, 244, 90, .38);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.card__link:hover { color: var(--lime-soft); border-color: var(--lime-soft); }

/* ---------- 11. 图片容器基座 ---------- */
.media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  background:
    linear-gradient(152deg, rgba(47, 125, 104, .58), rgba(18, 49, 41, .92) 55%, var(--ink) 100%);
}

.media > img,
.media > picture,
.media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 82% 0%, rgba(200, 244, 90, .16), transparent 62%),
    linear-gradient(180deg, rgba(7, 19, 15, 0) 44%, rgba(7, 19, 15, .74) 100%);
}

.media--portrait { aspect-ratio: 3 / 4; }
.media--wide { aspect-ratio: 16 / 9; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lime-soft);
}

/* ---------- 12. 数字看台 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 6vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--lime);
}

.stat__num--warm { color: var(--orange); }

.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mint);
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th {
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  text-align: left;
  color: var(--mint);
  border-bottom: 1px solid var(--line);
}

.data-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(30, 90, 71, .55);
  color: #D8EBDD;
}

.data-table th:first-child,
.data-table td:first-child { padding-left: 0; }

.data-table th:last-child,
.data-table td:last-child { padding-right: 0; }

/* ---------- 13. 时间轴 ---------- */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding-left: 26px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), var(--line) 46%, transparent 100%);
}

.timeline__item { position: relative; }

.timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--lime);
}

/* ---------- 14. 筛选与显现 ---------- */
[data-tags] {
  transition: opacity .18s var(--ease), transform .18s var(--ease);
}

[data-tags].is-fading {
  opacity: 0;
  transform: translateY(6px);
}

html.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .34s var(--ease), transform .34s var(--ease);
}

html.reveal-ready [data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 15. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 85;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--board);
  color: var(--lime);
  font-size: 17px;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .24s var(--ease), transform .24s var(--ease), background .2s var(--ease), color .2s var(--ease);
}

.to-top[data-visible] {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.to-top:hover {
  background: var(--lime);
  color: var(--ink);
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  background: linear-gradient(180deg, var(--stand) 0%, #050D0A 100%);
  border-top: 1px solid var(--line);
  color: var(--mint);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -150px;
  left: -10%;
  right: -10%;
  height: 280px;
  background: radial-gradient(closest-side, rgba(200, 244, 90, .12), transparent 70%);
  pointer-events: none;
}

.footer__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 76px) var(--gutter) clamp(24px, 4vw, 40px);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.footer__brand .brand { padding: 0; }

.footer__summary {
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.72;
  color: #C4DCCF;
}

.footer__cta { margin-top: 2px; }

.footer__cols {
  display: grid;
  gap: 22px 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.footer__col { min-width: 0; }

.footer__col-title {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lime);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 14px;
}

.footer__links a {
  color: #C4DCCF;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.footer__links a:hover {
  color: var(--lime);
  padding-left: 3px;
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.footer__contact-line {
  font-size: 13px;
  line-height: 1.66;
  color: #C4DCCF;
  word-break: break-word;
}

.footer__note {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.68;
  color: var(--mint);
  opacity: .78;
}

.footer__bottom {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 18px var(--gutter) 26px;
  border-top: 1px solid rgba(30, 90, 71, .7);
}

.footer__legal {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mint);
  opacity: .84;
}

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 12px;
  color: var(--mint);
}

.footer__legal-links a { transition: color .2s var(--ease); }
.footer__legal-links a:hover { color: var(--lime); }

/* ---------- 17. 响应式：平板与手机 ---------- */
@media (min-width: 480px) {
  .footer__cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 760px) {
  .footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
}

@media (min-width: 1100px) {
  body {
    padding-top: 0;
    padding-left: var(--rail);
  }

  .footer__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .footer__brand { grid-column: auto; }

  #main-content { scroll-margin-top: 24px; }
}

@media (max-width: 1099px) {
  body {
    padding-top: 66px;
    padding-left: 0;
    padding-bottom: 92px;
  }

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: 66px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 var(--gutter);
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: #0A1C17;
  }

  .site-header::after { display: none; }

  .rail-brand { flex: 1 1 auto; min-width: 0; }

  .brand__mark { width: 34px; height: 34px; border-radius: 11px; font-size: 16px; }
  .brand__name { font-size: 15px; }
  .brand__tag { font-size: 9px; letter-spacing: .12em; }

  .nav-toggle { display: inline-flex; flex: 0 0 auto; }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 70;
    width: min(86vw, 336px);
    flex: 0 0 auto;
    flex-direction: column;
    gap: 16px;
    padding: 86px 20px 28px;
    background: linear-gradient(172deg, #102A23 0%, #07130F 72%);
    border-right: 1px solid var(--line);
    box-shadow: 24px 0 60px rgba(0, 0, 0, .48);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(-104%);
    transition: transform .3s var(--ease);
  }

  .site-header[data-open] .nav { transform: translateX(0); }

  .nav__label { padding-left: 14px; font-size: 10px; }

  .nav__list { gap: 6px; }

  .nav__link {
    padding: 13px 18px;
    font-size: 16px;
  }

  .nav__pinned .pill { padding: 13px 14px; font-size: 14px; }

  .nav__utility { padding: 6px 14px 0; font-size: 12px; }

  .nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 60;
    background: rgba(3, 10, 8, .64);
    opacity: 0;
    pointer-events: none;
    transition: opacity .26s var(--ease);
  }

  .site-header[data-open] ~ .nav-scrim {
    opacity: 1;
    pointer-events: auto;
  }

  .quickbar {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 75;
    padding: 6px;
    border-radius: 22px;
    border: 1px solid var(--line);
    background: rgba(11, 31, 26, .96);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .52);
    transition: opacity .22s var(--ease), transform .22s var(--ease);
  }

  .site-header[data-open] .quickbar {
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
  }

  .quickbar__item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 11px 6px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .02em;
    color: var(--mint);
    transition: background .2s var(--ease), color .2s var(--ease);
  }

  .quickbar__item:hover { color: var(--lime-soft); background: var(--board); }

  .quickbar__item[aria-current="page"] {
    background: var(--lime);
    color: var(--ink);
  }

  .to-top { bottom: 92px; right: 14px; }
}

/* ---------- 18. 动效可及性 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}