/* ==========================================================================
   AYX 爱游戏体育赛事 · 共享外壳样式 /assets/site.css
   高原竞技数据台：左侧品牌轨道 + 命令栏 + 夜赛黑页脚
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  --ink-blue: #0A1A2A;
  --paper: #F5F1E8;
  --snow: #E6EFF6;
  --glacier: #1D6FA5;
  --ice: #8BC8EA;
  --crimson: #A62B3A;
  --yellow: #E9B23C;
  --turquoise: #2E9E8F;
  --rock: #66788A;
  --night: #061019;
  --footer-muted: #A9B8C6;
  --line: rgba(10, 26, 42, 0.14);
  --line-strong: rgba(10, 26, 42, 0.28);
  --line-ice: rgba(139, 200, 234, 0.22);
  --rail-w: 88px;
  --gutter: 24px;
  --maxw: 1240px;
  --bar-maxw: 1400px;
  --font-display: "Arial Black", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-editorial: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", "Times New Roman", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-data: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--ink-blue);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(10, 26, 42, 0.05) 1px, transparent 1px);
  background-size: 6px 6px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

img { height: auto; }

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

ul,
ol { margin: 0 0 1.1em; padding-inline-start: 1.2em; }

main { display: block; }

/* ---------- 3. 中文排版 ---------- */
h1, h2, h3, h4 {
  margin: 0 0 0.55em;
  font-family: var(--font-editorial);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink-blue);
}

h1 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.15rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); }
h4 { font-size: 1.02rem; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--glacier);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 111, 165, 0.35);
  transition: color 0.16s ease, border-color 0.16s ease;
}

a:hover { color: var(--ink-blue); border-bottom-color: var(--ink-blue); }

strong { font-weight: 700; }

small { font-size: 0.82rem; }

/* ---------- 4. 焦点与可达性 ---------- */
:focus-visible {
  outline: 3px solid var(--turquoise);
  outline-offset: 3px;
  border-radius: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 200;
  transform: translate(-50%, -130%);
  padding: 10px 20px;
  background: var(--ink-blue);
  color: var(--paper);
  border: 0;
  border-radius: 0 0 2px 2px;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  transition: transform 0.18s ease;
}

.skip-link:focus { transform: translate(-50%, 0); color: var(--paper); }

/* ---------- 5. 通用容器与网格 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

.container--narrow { max-width: 820px; }

.grid { display: grid; gap: var(--gutter); }

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }

/* ---------- 6. 排版工具类 ---------- */
.display-title {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--ink-blue);
  transform: skewX(-3deg);
  transform-origin: 0 100%;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--glacier);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--crimson);
}

.lede {
  max-width: 36em;
  margin: 0 0 1.4em;
  font-size: 1.06rem;
  line-height: 1.78;
  color: var(--rock);
}

.mono {
  font-family: var(--font-data);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.prose {
  max-width: 38em;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.prose ul,
.prose ol { padding-inline-start: 1.15em; }
.prose li { margin-bottom: 0.4em; }

/* ---------- 7. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.75em 1.2em;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--paper);
  background: var(--ink-blue);
  border: 1px solid transparent;
  border-bottom: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn:hover { color: var(--paper); border-bottom-color: transparent; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--crimson); color: #fff; }
.btn--primary:hover { background: #8C2130; color: #fff; }

.btn--ghost {
  background: transparent;
  color: var(--ink-blue);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  background: rgba(29, 111, 165, 0.1);
  color: var(--ink-blue);
  border-color: var(--glacier);
}

.btn--sm { padding: 0.58em 0.9em; font-size: 0.84rem; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-blue);
  background: var(--snow);
  border-inline-start: 2px solid var(--glacier);
  border-radius: 1px;
}

.tag--crimson { border-inline-start-color: var(--crimson); }
.tag--yellow { border-inline-start-color: var(--yellow); }
.tag--turquoise { border-inline-start-color: var(--turquoise); }

/* ---------- 8. 状态点与玻璃层 ---------- */
.status-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--rock);
}

.status-dot--live {
  background: var(--turquoise);
  box-shadow: 0 0 0 3px rgba(46, 158, 143, 0.22);
}

.status-dot--warn {
  background: var(--yellow);
  box-shadow: 0 0 0 3px rgba(233, 178, 60, 0.2);
}

.status-dot--fix {
  background: var(--crimson);
  box-shadow: 0 0 0 3px rgba(166, 43, 58, 0.2);
}

@keyframes ayx-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(46, 158, 143, 0.24); }
  50% { box-shadow: 0 0 0 7px rgba(46, 158, 143, 0.05); }
}

.glass-panel {
  padding: 18px 20px;
  background: rgba(230, 239, 246, 0.62);
  border: 1px solid var(--line);
  border-radius: 2px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumbs {
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs__list li { margin: 0; }

.breadcrumbs__list li + li::before {
  content: "/";
  margin-inline-end: 8px;
  color: var(--line-strong);
}

.breadcrumbs a { color: var(--rock); border-bottom: 0; }
.breadcrumbs a:hover { color: var(--glacier); }
.breadcrumbs [aria-current="page"] { color: var(--ink-blue); }

/* ---------- 10. 可复用图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  background: var(--snow);
  border-radius: 2px;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.media-frame--cut {
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}

.media-frame__caption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 10px 14px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: linear-gradient(180deg, transparent, rgba(6, 16, 25, 0.82));
}

/* ==========================================================================
   11. 头部外壳
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
}

/* --- 左侧品牌轨道（移动端隐藏） --- */
.header-rail { display: none; }

.rail-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.rail-brand {
  writing-mode: vertical-rl;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.08rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--paper);
  border: 0;
  transition: color 0.16s ease;
}

.rail-brand:hover { color: var(--ice); border: 0; }

.rail-label {
  writing-mode: vertical-rl;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--ice);
}

.rail-progress {
  position: relative;
  flex: 1 1 auto;
  width: 2px;
  min-height: 60px;
  margin: 18px 0;
  background: var(--line-ice);
  border-radius: 1px;
  overflow: hidden;
}

.rail-progress__fill {
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 0;
  background: linear-gradient(180deg, var(--ice), var(--turquoise));
  transition: height 0.12s linear;
}

.rail-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.rail-index {
  font-family: var(--font-data);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--yellow);
  font-variant-numeric: tabular-nums;
}

.rail-status {
  writing-mode: vertical-rl;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--footer-muted);
}

.rail-status .status-dot { writing-mode: horizontal-tb; }

.rail-top-btn {
  width: 34px;
  height: 34px;
  padding: 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line-ice);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.rail-top-btn:hover {
  background: rgba(139, 200, 234, 0.14);
  border-color: var(--ice);
  color: #fff;
}

/* --- 命令栏 --- */
.command-bar {
  background: rgba(245, 241, 232, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.command-bar__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--bar-maxw);
  margin-inline: auto;
  padding: 10px clamp(16px, 4vw, 24px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  border: 0;
  text-decoration: none;
}

.brand-lockup:hover { border: 0; }

.brand-lockup__mark {
  padding: 6px 9px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.95rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #fff;
  background: var(--ink-blue);
  transform: skewX(-6deg);
}

.brand-lockup__name {
  font-family: var(--font-editorial);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.2;
  color: var(--ink-blue);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.command-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-inline-start: auto;
}

/* --- 移动端抽屉导航 --- */
.site-nav {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 90;
  max-height: 84vh;
  padding: 22px clamp(16px, 4vw, 24px) 26px;
  overflow-y: auto;
  background-color: var(--night);
  background-image: repeating-linear-gradient(180deg, rgba(139, 200, 234, 0.07) 0 1px, transparent 1px 34px);
  border-top: 1px solid rgba(139, 200, 234, 0.3);
  box-shadow: 0 -18px 40px rgba(6, 16, 25, 0.35);
  transform: translateY(101%);
  visibility: hidden;
  transition: transform 0.28s cubic-bezier(0.22, 0.61, 0.36, 1), visibility 0.28s;
}

.site-nav[data-open] {
  transform: translateY(0);
  visibility: visible;
}

.site-nav::before {
  content: "栏目索引 01—06";
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.nav-list {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item { border-bottom: 1px solid rgba(245, 241, 232, 0.12); }
.nav-item:first-child { border-top: 1px solid rgba(245, 241, 232, 0.12); }

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 4px;
  font-size: 0.98rem;
  line-height: 1.3;
  color: var(--paper);
  text-decoration: none;
  border: 0;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.nav-link::before {
  content: "";
  display: block;
  flex: 0 0 auto;
  width: 0;
  height: 6px;
  border-radius: 50%;
  background: var(--turquoise);
  transition: width 0.16s ease;
}

.nav-link:hover { color: #fff; background: rgba(139, 200, 234, 0.1); border: 0; }
.nav-link[aria-current="page"] { color: #fff; }
.nav-link[aria-current="page"]::before { width: 6px; }

.nav-num {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
}

.nav-link[aria-current="page"] .nav-num { color: var(--yellow); }

.nav-text {
  min-width: 0;
  white-space: nowrap;
}

/* --- 索引按钮 --- */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink-blue);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.nav-toggle:hover {
  background: rgba(29, 111, 165, 0.1);
  border-color: var(--glacier);
}

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

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

.nav-toggle__bars > span {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle__label { line-height: 1; }

/* --- 状态条 --- */
.status-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: var(--bar-maxw);
  margin: 0 auto;
  padding: 5px clamp(16px, 4vw, 24px);
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--snow);
  background: var(--night);
  border-top: 1px solid var(--line-ice);
}

.status-strip__text {
  flex: 1 1 auto;
  min-width: 0;
  padding-block: 2px;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

.status-strip__text::-webkit-scrollbar { display: none; }

/* ==========================================================================
   12. 页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  color: var(--snow);
  background-color: var(--night);
  background-image:
    linear-gradient(rgba(139, 200, 234, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 200, 234, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  border-top: 1px solid rgba(139, 200, 234, 0.25);
}

.footer-flags { display: flex; height: 5px; }

.footer-flags__cell { flex: 1 1 0; height: 100%; }
.footer-flags__cell:nth-child(1) { background: var(--crimson); }
.footer-flags__cell:nth-child(2) { background: var(--yellow); }
.footer-flags__cell:nth-child(3) { background: var(--turquoise); }
.footer-flags__cell:nth-child(4) { background: var(--ice); }
.footer-flags__cell:nth-child(5) { background: var(--glacier); }

.footer-inner {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(32px, 5vw, 60px) clamp(20px, 4vw, 40px) 24px;
}

.footer-top { display: grid; gap: clamp(24px, 4vw, 48px); }

.footer-brand {
  display: grid;
  gap: 14px;
  align-content: start;
}

.footer-brand__lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  border: 0;
  text-decoration: none;
}

.footer-brand__lockup:hover { border: 0; }

.footer-brand__mark {
  padding: 5px 9px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.92rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--night);
  background: var(--ice);
  transform: skewX(-6deg);
}

.footer-brand__name {
  font-family: var(--font-editorial);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.3;
  color: var(--paper);
}

.footer-brand__line {
  max-width: 30em;
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--footer-muted);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 20px;
}

.footer-col__title {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.footer-links {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li { margin: 0; }

.footer-link {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--snow);
  border: 0;
  transition: color 0.16s ease;
}

.footer-link:hover { color: var(--yellow); border: 0; }

.footer-link--static {
  display: inline-block;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--footer-muted);
}

.footer-contact {
  display: grid;
  gap: 6px;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid rgba(139, 200, 234, 0.18);
}

.footer-contact__line {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--footer-muted);
  overflow-wrap: anywhere;
}

.footer-contact__key {
  margin-inline-end: 8px;
  color: var(--ice);
}

.footer-note {
  margin: 6px 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--footer-muted);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 8px;
  padding-top: 22px;
  border-top: 1px solid rgba(139, 200, 234, 0.18);
}

.footer-legal {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.76rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--footer-muted);
}

.footer-legal__icp { color: var(--snow); }

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-legal__links li { margin: 0; }

.footer-legal__links a {
  font-size: 0.78rem;
  color: var(--snow);
  border: 0;
  transition: color 0.16s ease;
}

.footer-legal__links a:hover { color: var(--yellow); border: 0; }

/* ==========================================================================
   13. 响应式：平板
   ========================================================================== */
@media (min-width: 640px) {
  .footer-cols { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .footer-top { grid-template-columns: minmax(260px, 1fr) 1.7fr; }
}

/* ==========================================================================
   14. 响应式：桌面（轨道常驻 + 横向命令栏）
   ========================================================================== */
@media (min-width: 1120px) {
  body { padding-inline-start: var(--rail-w); }

  .header-rail {
    display: flex;
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    width: var(--rail-w);
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 0;
    color: var(--paper);
    background-color: var(--night);
    background-image: repeating-linear-gradient(180deg, rgba(139, 200, 234, 0.08) 0 1px, transparent 1px 40px);
    border-inline-end: 1px solid var(--line-ice);
    z-index: 80;
  }

  .command-bar__inner {
    gap: 24px;
    padding: 12px clamp(24px, 3vw, 40px);
  }

  .brand-lockup { display: none; }

  .site-nav {
    position: static;
    inset: auto;
    z-index: auto;
    max-height: none;
    margin-inline-start: auto;
    padding: 0;
    overflow: visible;
    background: transparent;
    border: 0;
    box-shadow: none;
    transform: none;
    visibility: visible;
    transition: none;
  }

  .site-nav::before { content: none; }

  .nav-list { flex-direction: row; gap: 2px; }

  .nav-item { border: 0; }
  .nav-item:first-child { border-top: 0; }

  .nav-link {
    padding: 8px 9px;
    font-size: 0.8rem;
    color: var(--ink-blue);
    border: 0;
    border-radius: 2px;
  }

  .nav-link:hover {
    color: var(--ink-blue);
    background: rgba(29, 111, 165, 0.1);
  }

  .nav-link[aria-current="page"] {
    color: var(--glacier);
    background: rgba(29, 111, 165, 0.1);
  }

  .nav-link[aria-current="page"] .nav-num { color: var(--turquoise); }

  .nav-link::before {
    width: 0;
    background: var(--turquoise);
  }

  .nav-link[aria-current="page"]::before { width: 6px; }

  .nav-toggle { display: none; }

  .site-footer { margin-top: clamp(56px, 6vw, 104px); }
}

@media (min-width: 1360px) {
  .nav-link { padding: 8px 11px; font-size: 0.82rem; }
}

/* ==========================================================================
   15. 动效偏好与打印
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .status-dot--live { animation: ayx-pulse 2.6s ease-in-out infinite; }
  .media-frame:hover img { transform: scale(1.03); }
}

@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;
    scroll-behavior: auto !important;
  }

  .rail-progress__fill { transition: none; }
  .site-nav { transition: none; }
  .display-title { transform: none; }
}

@media print {
  .site-header,
  .site-footer,
  .skip-link { display: none !important; }
  body { padding: 0; background: #fff; }
}