/* =============================================================
   风云体育入口 · 共享样式表  /assets/site.css
   母题：风暴眼里的数据校订台
   风暴蓝 #1B3A5C / 深场夜 #08131F / 闪电青 #00E5FF / 数据黄 #FFD166
   ============================================================= */

/* ---------- 0. 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, ul, ol, li, dl, dt, dd, figure, blockquote, pre {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

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

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

table { border-collapse: collapse; border-spacing: 0; }

hr { border: 0; }

/* ---------- 1. 变量 ---------- */
:root {
  /* 色板 */
  --storm-blue: #1B3A5C;
  --night: #08131F;
  --deep: #060E17;
  --cloud: #12293D;
  --bolt: #00E5FF;
  --yellow: #FFD166;
  --signal: #3ED598;
  --alert: #FF7A59;
  --grey: #7C93A6;
  --paper: #E8F1F8;
  --steel: #2E5A78;

  /* 字体 */
  --font-display: "Arial Narrow", "Helvetica Neue", system-ui, -apple-system,
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "Noto Serif SC", serif;
  --font-body: system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  /* 尺寸 */
  --rail-w: 116px;
  --bar-h: 46px;
  --gutter: clamp(20px, 3.4vw, 52px);
  --edge: rgba(46, 90, 120, .55);
  --edge-soft: rgba(46, 90, 120, .32);
  --ease: cubic-bezier(.2, .7, .3, 1);
}

/* ---------- 2. 基底 ---------- */
body {
  min-height: 100vh;
  padding-left: 0;
  padding-top: 0;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: .01em;
  word-break: break-word;
  background-color: var(--night);
  background-image:
    radial-gradient(110% 70% at 108% -12%, rgba(0, 229, 255, .11), transparent 58%),
    radial-gradient(90% 70% at -12% 112%, rgba(27, 58, 92, .6), transparent 62%),
    linear-gradient(162deg, #0B1A29 0%, #08131F 46%, var(--deep) 100%);
  background-attachment: fixed;
}

::selection { background: var(--bolt); color: var(--night); }

:focus-visible {
  outline: 2px solid var(--bolt);
  outline-offset: 2px;
}

* { scrollbar-width: thin; scrollbar-color: var(--steel) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: rgba(8, 19, 31, .6); }
::-webkit-scrollbar-thumb { background: var(--steel); }
::-webkit-scrollbar-thumb:hover { background: var(--bolt); }

/* ---------- 3. 排版工具 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(38px, 6.6vw, 64px);
  line-height: .98;
  letter-spacing: -.02em;
}

.editorial {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.1vw, 24px);
  line-height: 1.5;
  color: rgba(232, 241, 248, .88);
}

.label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: .01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--bolt);
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--bolt);
}

.prose {
  max-width: 36em;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(232, 241, 248, .88);
}

.prose p { margin-top: 14px; }
.prose p:first-child { margin-top: 0; }
.prose strong { color: var(--paper); font-weight: 700; }
.prose a { color: var(--bolt); border-bottom: 1px solid rgba(0, 229, 255, .45); }
.prose a:hover { border-bottom-color: var(--bolt); }

.prose code {
  font-family: var(--font-mono);
  font-size: .92em;
  padding: 1px 5px;
  background: rgba(0, 229, 255, .1);
  color: var(--bolt);
}

/* ---------- 4. 布局骨架 ---------- */
.shell {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-main { display: block; }
.site-main { padding-top: 0; }

.section { padding-block: clamp(40px, 6vw, 76px); }
.section--tight { padding-block: clamp(22px, 3vw, 38px); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.section__index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--bolt);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.04;
  letter-spacing: -.02em;
}

.section__lead {
  flex: 1 1 260px;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.6;
  color: rgba(232, 241, 248, .78);
  max-width: 38em;
}

.grid { display: grid; gap: clamp(16px, 2.2vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--asym { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--rail { grid-template-columns: minmax(0, 1fr) minmax(0, 4fr); }

.stack > * + * { margin-top: clamp(14px, 1.8vw, 22px); }

/* ---------- 5. 面包屑 ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--grey);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumbs li::after { content: "/"; color: var(--steel); }
.breadcrumbs li:last-child::after { content: ""; }

.breadcrumbs a {
  color: rgba(232, 241, 248, .72);
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--bolt);
  border-bottom-color: var(--bolt);
}

.breadcrumbs [aria-current="page"] { color: var(--paper); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .04em;
  border: 1px solid var(--steel);
  border-radius: 2px;
  background: rgba(18, 41, 61, .6);
  color: var(--paper);
  transition: border-color 120ms var(--ease), color 120ms var(--ease),
    background-color 120ms var(--ease), box-shadow 120ms var(--ease);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--bolt);
  color: var(--bolt);
  background: rgba(0, 229, 255, .08);
  box-shadow: 0 0 0 2px rgba(0, 229, 255, .18);
}

.btn--primary {
  background: var(--bolt);
  border-color: var(--bolt);
  color: var(--night);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--night);
  box-shadow: 0 0 0 3px rgba(255, 209, 102, .2);
}

.btn--ghost { background: transparent; }

/* ---------- 7. 数据与状态 ---------- */
.island {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: linear-gradient(160deg, rgba(18, 41, 61, .97), rgba(10, 22, 35, .97));
  border: 1px solid var(--steel);
  box-shadow: 7px 7px 0 -1px rgba(8, 19, 31, .92), 7px 7px 0 0 rgba(46, 90, 120, .55);
  transition: border-color 120ms var(--ease), box-shadow 120ms var(--ease);
}

.island:hover,
.island:focus-within {
  border-color: var(--bolt);
  box-shadow: 9px 9px 0 -1px rgba(8, 19, 31, .92), 9px 9px 0 0 rgba(0, 229, 255, .22);
}

.island__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.15;
  letter-spacing: -.01em;
}

.island__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1;
  color: var(--yellow);
}

.data { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 700; color: var(--paper); }
.data--key { color: var(--yellow); }
.data--bolt { color: var(--bolt); }
.data--muted { color: var(--grey); font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  white-space: nowrap;
  color: var(--grey);
}

.badge--ok { color: var(--signal); background: rgba(62, 213, 152, .09); }
.badge--pending { color: var(--alert); background: rgba(255, 122, 89, .1); }
.badge--key { color: var(--yellow); background: rgba(255, 209, 102, .1); }
.badge--info { color: var(--bolt); background: rgba(0, 229, 255, .08); }

/* ---------- 8. 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--steel);
  background: rgba(8, 19, 31, .55);
}

.data-table { width: 100%; min-width: 520px; font-size: 14px; }

.data-table th,
.data-table td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--edge-soft);
  vertical-align: top;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--grey);
  background: rgba(27, 58, 92, .5);
  white-space: nowrap;
}

.data-table td { color: rgba(232, 241, 248, .86); }
.data-table td .mono { color: var(--paper); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover td { background: rgba(0, 229, 255, .05); }

/* ---------- 9. 时间轴 ---------- */
.timeline { position: relative; padding-left: 28px; }

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--steel), rgba(46, 90, 120, .12));
}

.timeline__item { position: relative; padding-bottom: 26px; }
.timeline__item:last-child { padding-bottom: 0; }

.timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--night);
  border: 1px solid var(--steel);
}

.timeline__item[data-state="done"]::before {
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 0 10px rgba(62, 213, 152, .55);
}

.timeline__item[data-state="pending"]::before {
  background: var(--alert);
  border-color: var(--alert);
}

.timeline__stamp {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--bolt);
}

/* ---------- 10. 图片容器（页面阶段放占位） ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--steel);
  background: linear-gradient(140deg, rgba(27, 58, 92, .85), rgba(8, 19, 31, .95));
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.55) contrast(1.05) brightness(.9);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(27, 58, 92, .06), rgba(8, 19, 31, .46));
}

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }

.media--player img { filter: saturate(.38) contrast(1.06) brightness(.86); }
.media--player::after { background: linear-gradient(180deg, rgba(27, 58, 92, .18), rgba(8, 19, 31, .52)); }

/* ---------- 11. 页头：风暴线 + 侧边轨道 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 2px;
  background: var(--bolt);
  color: var(--night);
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-200%);
  transition: transform 140ms var(--ease);
}

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

.site-header { position: relative; z-index: 60; }

/* 顶部 2px 风暴线 */
.stormbar {
  position: fixed;
  top: 0;
  left: var(--rail-w);
  right: 0;
  height: var(--bar-h);
  z-index: 55;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(10px, 2vw, 22px);
  padding: 0 var(--gutter);
  pointer-events: none;
  background: linear-gradient(180deg, rgba(8, 19, 31, .96) 0%, rgba(8, 19, 31, .6) 62%, rgba(8, 19, 31, 0) 100%);
}

.stormbar__line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0) 0%, var(--steel) 16%, var(--bolt) 60%, var(--yellow) 100%);
  box-shadow: 0 0 12px rgba(0, 229, 255, .35);
}

.stormbar__round {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 2px;
  background: var(--bolt);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}

.stormbar__stamp {
  pointer-events: auto;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--grey);
  white-space: nowrap;
}

.stormbar__stamp time { color: var(--paper); }

.stormbar__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 229, 255, .18), var(--bolt));
  transition: width 120ms linear;
}

/* 侧边品牌轨道 */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 18px 0 18px;
  background: linear-gradient(180deg, rgba(27, 58, 92, .94) 0%, rgba(12, 28, 45, .98) 56%, rgba(8, 19, 31, 1) 100%);
  border-right: 1px solid var(--edge);
}

.rail::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 190px;
  pointer-events: none;
  background: repeating-linear-gradient(135deg, rgba(0, 229, 255, .07) 0 1px, transparent 1px 9px);
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 18px;
  color: var(--paper);
}

.brand__mark {
  width: 34px;
  height: 34px;
  color: var(--bolt);
  transition: color 120ms var(--ease);
}

.brand:hover .brand__mark,
.brand:focus-visible .brand__mark { color: var(--yellow); }

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .06em;
  line-height: 1.1;
  text-align: center;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--grey);
}

.rail__toggle { display: none; }

/* 侧边导航 */
.nav { flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 4px 0; }

.nav__list { display: flex; flex-direction: column; gap: 1px; }

.nav__link {
  position: relative;
  display: block;
  padding: 11px 12px 14px 16px;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.35;
  color: rgba(232, 241, 248, .72);
  border-left: 2px solid transparent;
  transition: color 120ms var(--ease), background-color 120ms var(--ease),
    border-color 120ms var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 12px;
  bottom: 6px;
  height: 1px;
  background: var(--bolt);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 120ms var(--ease);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--bolt);
  background: rgba(0, 229, 255, .06);
}

.nav__link:hover::after,
.nav__link:focus-visible::after { transform: scaleX(1); }

.nav__link[aria-current="page"] {
  color: var(--bolt);
  border-left-color: var(--bolt);
  background: linear-gradient(90deg, rgba(0, 229, 255, .18), rgba(0, 229, 255, 0) 84%);
}

.nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 轨道底部状态灯 */
.rail__status {
  position: relative;
  z-index: 1;
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  padding: 14px 12px 2px;
  border-top: 1px solid var(--edge);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--grey);
}

.rail__dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px rgba(62, 213, 152, .7);
}

.rail__status .mono { font-size: 11px; color: var(--paper); letter-spacing: .04em; }

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 120px);
  padding: clamp(36px, 5vw, 58px) 0 26px;
  border-top: 1px solid var(--edge);
  background: linear-gradient(180deg, rgba(12, 28, 45, .6), rgba(6, 14, 23, .96));
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(340px, 60%);
  height: 2px;
  background: linear-gradient(90deg, var(--bolt), rgba(0, 229, 255, 0));
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.footer__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--yellow);
}

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

.footer__links a {
  display: inline-block;
  padding-bottom: 1px;
  font-size: 14px;
  color: rgba(232, 241, 248, .78);
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--bolt);
  border-bottom-color: var(--bolt);
}

.footer__hint {
  margin-top: 14px;
  max-width: 26em;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--grey);
}

.footer__meta { display: grid; gap: 9px; font-size: 13.5px; }

.footer__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--grey);
}

.footer__meta dd { color: rgba(232, 241, 248, .86); }
.footer__meta dd.mono { color: var(--paper); }

.footer__base {
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: 18px;
  border-top: 1px solid var(--edge-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 12.5px;
  color: var(--grey);
}

.footer__note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(232, 241, 248, .74);
}

.footer__note::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px rgba(62, 213, 152, .6);
}

.footer__legal { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.footer__legal .mono { color: var(--paper); font-size: 12px; }
.footer__sep { color: var(--steel); }

/* ---------- 13. 响应式 ---------- */
@media (min-width: 900px) {
  body { padding-left: var(--rail-w); }
  .site-main { padding-top: calc(var(--bar-h) + clamp(20px, 4vw, 44px)); }
}

@media (max-width: 899px) {
  :root { --rail-w: 0px; --bar-h: 54px; }

  body { padding-left: 0; padding-top: calc(30px + var(--bar-h)); }
  .site-main { padding-top: 0; }

  .stormbar {
    top: 0;
    left: 0;
    right: 0;
    height: 30px;
    padding: 0 14px;
    justify-content: space-between;
    gap: 8px;
    pointer-events: auto;
    background: rgba(8, 19, 31, .96);
    border-bottom: 1px solid var(--edge);
    z-index: 80;
  }

  .stormbar__round { font-size: 11px; padding: 2px 7px; }
  .stormbar__stamp { font-size: 11px; }

  .rail {
    position: fixed;
    top: 30px;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: var(--bar-h);
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 0 12px 0 14px;
    border-right: 0;
    border-bottom: 1px solid var(--edge);
    background: linear-gradient(90deg, rgba(27, 58, 92, .96), rgba(8, 19, 31, .98));
    z-index: 75;
  }

  .rail::after { display: none; }

  .brand { flex-direction: row; align-items: center; gap: 9px; padding: 0; }
  .brand__mark { width: 24px; height: 24px; }
  .brand__name { font-size: 15px; letter-spacing: .04em; text-align: left; }
  .brand__sub { font-size: 9px; letter-spacing: .14em; }

  .rail__status { display: none; }

  .rail__toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-left: auto;
    padding: 8px 12px;
    border: 1px solid var(--steel);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--paper);
    transition: color 120ms var(--ease), border-color 120ms var(--ease);
  }

  .rail__toggle:hover,
  .rail__toggle:focus-visible { color: var(--bolt); border-color: var(--bolt); }

  .rail__bars { position: relative; display: block; width: 14px; height: 9px; }

  .rail__bars::before,
  .rail__bars::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 1.5px;
    background: currentColor;
    transition: transform 200ms var(--ease);
  }

  .rail__bars::before { top: 0; }
  .rail__bars::after { bottom: 0; }

  .rail__toggle[aria-expanded="true"] .rail__bars::before { transform: translateY(3.75px) rotate(45deg); }
  .rail__toggle[aria-expanded="true"] .rail__bars::after { transform: translateY(-3.75px) rotate(-45deg); }

  .nav {
    position: fixed;
    left: 0;
    right: 0;
    top: calc(30px + var(--bar-h));
    bottom: 0;
    z-index: 70;
    padding: 18px 16px 48px;
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(12, 28, 45, .99), rgba(6, 14, 23, .99));
    border-top: 1px solid var(--edge);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 280ms var(--ease), transform 280ms var(--ease), visibility 280ms;
  }

  .nav[data-open] { opacity: 1; visibility: visible; transform: none; }

  .nav__list { gap: 0; }

  .nav__link {
    padding: 16px 4px 16px 14px;
    font-size: 17px;
    border-left: 2px solid transparent;
    border-bottom: 1px solid var(--edge-soft);
  }

  .nav__link::after { display: none; }
  .nav__link[aria-current="page"] { background: linear-gradient(90deg, rgba(0, 229, 255, .16), rgba(0, 229, 255, 0) 70%); }

  body[data-nav-locked] { overflow: hidden; }
}

@media (max-width: 860px) {
  .grid--2,
  .grid--3,
  .grid--asym,
  .grid--rail { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 600px) {
  .stormbar__stamp-label { display: none; }
  .data-table { min-width: 440px; }
}

/* ---------- 14. 可访问性与降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0ms !important;
  }
}