/* ==========================================================================
   米兰赛场 / MILAN ARENA — /assets/site.css
   共享外壳：重置、设计令牌、排版、头部、页脚、通用组件
   ========================================================================== */

:root {
  --ink: #0B0C0E;
  --ink-2: #15171B;
  --smoke: #2A2D33;
  --red: #D7263D;
  --red-deep: #8E1526;
  --ivory: #F5F1E8;
  --silver: #A7ADB5;
  --silver-lt: #D9DDE2;
  --mint: #39F5C8;

  --line: rgba(167, 173, 181, .22);
  --line-soft: rgba(167, 173, 181, .10);
  --line-strong: rgba(245, 241, 232, .16);

  --shell-max: 1320px;
  --shell-pad: clamp(16px, 4vw, 48px);

  --font-display: "Barlow Condensed", "Oswald", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;

  --t-fast: .16s cubic-bezier(.3, .7, .4, 1);
}

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

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

body {
  margin: 0;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(167, 173, 181, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(167, 173, 181, .05) 1px, transparent 1px);
  background-size: 90px 90px;
  background-attachment: fixed;
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button { font: inherit; color: inherit; }
address { font-style: normal; }
table { border-collapse: collapse; width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: .95;
  letter-spacing: .015em;
  text-wrap: balance;
}

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 工具类 ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -120px;
  left: var(--shell-pad);
  z-index: 200;
  padding: 12px 18px;
  background: var(--mint);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  text-decoration: none;
  transition: top var(--t-fast);
}
.skip-link:focus,
.skip-link:focus-visible { top: 8px; outline-offset: 2px; }

.mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
}

.lede {
  font-size: clamp(1.02rem, 1.6vw, 1.22rem);
  line-height: 1.65;
  color: var(--silver-lt);
  max-width: 62ch;
}

.text-dim { color: var(--silver); }

.prose { max-width: 68ch; }
.prose p + p { margin-top: .9em; }
.prose h2, .prose h3 { margin-top: 1.6em; margin-bottom: .6em; }
.prose ul, .prose ol { padding-left: 1.2em; margin: .8em 0; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .35em; }
.prose a {
  color: var(--ivory);
  text-decoration: none;
  border-bottom: 1px solid var(--red);
}
.prose a:hover { color: var(--mint); border-bottom-color: var(--mint); }

.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---------- 容器与章节 ---------- */
.container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}
.container--narrow { max-width: 900px; }
.container--wide { max-width: 1560px; }

.section {
  position: relative;
  padding-block: clamp(40px, 7vw, 96px);
}
.section--tight { padding-block: clamp(24px, 4vw, 48px); }
.section--light {
  background: var(--ivory);
  color: var(--ink);
}
.section--light .section-note { color: #4A4E55; }
.section--light .rule { background: rgba(11, 12, 14, .16); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(24px, 4vw, 44px);
}
.section--light .section-head { border-bottom-color: rgba(11, 12, 14, .2); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--red);
  flex: 0 0 auto;
}

.section-title {
  font-size: clamp(1.9rem, 4.4vw, 3.4rem);
  font-weight: 800;
  letter-spacing: .01em;
}

.section-note {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--silver);
  max-width: 46ch;
}

/* ---------- 栅格 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.5vw, 32px);
}
.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, 1.45fr) minmax(0, 1fr); }

@media (max-width: 900px) {
  .grid--2, .grid--3, .grid--asym { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 20px;
  background: var(--red);
  color: var(--ivory);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .08em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast),
              border-color var(--t-fast), box-shadow var(--t-fast);
}
.btn::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
  transition: transform var(--t-fast);
}
.btn:hover { background: var(--red-deep); box-shadow: 4px 4px 0 0 rgba(57, 245, 200, .22); }
.btn:hover::after { transform: translateX(3px); }

.btn--ghost {
  background: transparent;
  color: var(--ivory);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  background: var(--smoke);
  border-color: var(--red);
  box-shadow: none;
}
.btn--block { display: flex; width: 100%; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--silver);
  background: rgba(42, 45, 51, .65);
  border: 1px solid var(--line-strong);
}
.tag--live {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink);
}
.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
}
.tag--data { color: var(--mint); border-color: rgba(57, 245, 200, .45); }
.tag--muted { color: var(--silver); }

/* ---------- 面板 ---------- */
.panel {
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  box-shadow: 6px 6px 0 0 rgba(0, 0, 0, .38);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 16px;
  background: rgba(11, 12, 14, .55);
  border-bottom: 1px solid var(--line);
}
.panel-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--silver);
}
.panel-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mint);
}
.panel-body { padding: clamp(16px, 2.4vw, 26px); }

/* ---------- 图片容器（页面阶段放图） ---------- */
.figure { position: relative; margin: 0; }

.figure-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
}
.figure-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s cubic-bezier(.3, .7, .4, 1);
}
.figure:hover .figure-img { transform: scale(1.03); }

.figure--wide .figure-frame { aspect-ratio: 21 / 9; }
.figure--tall .figure-frame { aspect-ratio: 3 / 4; }
.figure--square .figure-frame { aspect-ratio: 1 / 1; }
.figure--skew .figure-frame { clip-path: polygon(0 0, 100% 3.5%, 100% 100%, 0 96.5%); }

.figure-caption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--silver);
}
.figure-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  background: rgba(21, 23, 27, .72);
  border-bottom: 1px solid var(--line);
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 10px var(--shell-pad);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--silver);
}
.breadcrumb-link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.breadcrumb-link:hover { color: var(--ivory); border-bottom-color: var(--red); }
.breadcrumb-sep { color: var(--red); }
.breadcrumb-current { color: var(--ivory); }

/* ==========================================================================
   页头
   ========================================================================== */
.site-header {
  position: relative;
  z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}

.header-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 90;
  pointer-events: none;
  background: rgba(11, 12, 14, .6);
}
.header-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--red) 0%, var(--mint) 100%);
}

/* 状态轨道 */
.header-rail {
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
}
.rail-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 7px var(--shell-pad);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--silver);
}
.rail-status {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rail-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(57, 245, 200, .15);
  animation: rail-pulse 2.6s ease-in-out infinite;
}
.rail-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}
.rail-clock {
  color: var(--ivory);
  letter-spacing: .14em;
  font-variant-numeric: tabular-nums;
}

@keyframes rail-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 3px rgba(57, 245, 200, .15); }
  50%      { opacity: .55; box-shadow: 0 0 0 6px rgba(57, 245, 200, .04); }
}

/* 主行 */
.header-main { background: var(--ink); }

.header-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 40px);
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: clamp(14px, 2vw, 20px) var(--shell-pad);
}

.brand {
  position: relative;
  flex: 1 1 auto;
  display: block;
  padding-left: 16px;
  color: var(--ivory);
  text-decoration: none;
}
.brand::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 5px;
  background: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), 0 100%);
}
.brand-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--red);
}
.brand-name {
  display: block;
  margin-top: 2px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 2.6vw, 2.1rem);
  line-height: .92;
  letter-spacing: .02em;
}
.brand-tag {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
}
.brand:hover .brand-name { color: #FFFFFF; }
.brand:hover::before { background: var(--red-deep); }

.header-right {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
}

.site-nav { position: relative; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-item { display: block; }

.nav-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 11px;
  color: var(--ivory);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .06em;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.nav-idx {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--silver);
  transition: color var(--t-fast);
}
.nav-label { display: inline; }

.nav-link:hover { border-bottom-color: var(--red); background: rgba(215, 38, 61, .08); }
.nav-link:hover .nav-idx { color: var(--mint); }

.nav-link[aria-current="page"] {
  color: #FFFFFF;
  border-bottom-color: var(--red);
}
.nav-link[aria-current="page"] .nav-idx { color: var(--red); }

.nav-link:focus-visible { outline: 2px solid var(--mint); outline-offset: -2px; }

.search-bar {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: var(--smoke);
  border: 1px solid var(--line-strong);
  color: var(--silver);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  white-space: nowrap;
  transition: border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);
}
.search-bar::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  box-shadow: 5px 5px 0 -3.4px currentColor;
  transform: translateY(-1px);
}
.search-bar:hover {
  border-color: var(--red);
  background: rgba(215, 38, 61, .1);
  color: var(--ivory);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  background: var(--smoke);
  border: 1px solid var(--line-strong);
  color: var(--ivory);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}
.nav-toggle:hover { border-color: var(--red); background: rgba(215, 38, 61, .1); }
.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--t-fast);
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { bottom: 0; }
.nav-toggle-text { display: inline; }

.site-header[data-nav-open="true"] .nav-toggle-bars::before { transform: translateY(4px) rotate(45deg); }
.site-header[data-nav-open="true"] .nav-toggle-bars::after { transform: translateY(-4px) rotate(-45deg); }

/* 中等宽度压缩 */
@media (max-width: 1200px) {
  .brand-tag { display: none; }
  .nav-link { font-size: 14px; padding: 9px 8px; }
  .search-bar { font-size: 11px; padding: 8px 10px; }
}

/* ==========================================================================
   移动端头部
   ========================================================================== */
@media (max-width: 1080px) {
  .header-inner {
    flex-wrap: wrap;
    align-items: center;
    row-gap: 0;
    gap: 12px;
  }
  .brand { flex: 1 1 auto; }
  .nav-toggle { display: inline-flex; flex: 0 0 auto; }

  .header-right {
    display: none;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--line-strong);
  }
  .site-header[data-nav-open="true"] .header-right { display: flex; }

  .site-nav { display: none; width: 100%; }
  .site-nav[data-open="true"] { display: block; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link {
    justify-content: space-between;
    padding: 13px 8px;
    font-size: 17px;
    border-bottom: 1px solid var(--line);
    border-left: 3px solid transparent;
  }
  .nav-link:hover,
  .nav-link[aria-current="page"] {
    background: rgba(215, 38, 61, .1);
    border-bottom-color: var(--line);
    border-left-color: var(--red);
    padding-left: 12px;
  }
  .nav-idx { font-size: 10.5px; }

  .search-bar {
    justify-content: flex-start;
    width: 100%;
    padding: 12px;
    white-space: normal;
  }
}

@media (max-width: 520px) {
  .rail-meta > span:last-child { display: none; }
  .brand-name { font-size: 1.5rem; }
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 104px);
  background: var(--ink-2);
  color: var(--ivory);
  border-top: 1px solid var(--line-strong);
  overflow: hidden;
}

.footer-cut {
  display: block;
  height: 4px;
  background: linear-gradient(90deg,
    var(--red) 0 30%,
    var(--red-deep) 30% 46%,
    var(--smoke) 46% 100%);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: clamp(28px, 5vw, 64px);
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) var(--shell-pad);
}

.footer-lead { display: block; min-width: 0; }

.footer-brand {
  display: inline-block;
  color: var(--ivory);
  text-decoration: none;
}
.footer-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--red);
}
.footer-name {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: .95;
  letter-spacing: .01em;
}
.footer-brand:hover .footer-name { color: #FFFFFF; }

.footer-summary {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--silver);
}

.footer-clock {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
}
.footer-clock-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(57, 245, 200, .14);
  animation: rail-pulse 2.6s ease-in-out infinite;
}
.footer-clock-label {
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--silver);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
  align-content: start;
}

.footer-col { min-width: 0; }

.footer-col-title {
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--silver);
}

.footer-list { display: grid; gap: 10px; }

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ivory);
  font-size: 14.5px;
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer-link::before {
  content: "";
  width: 10px;
  height: 1px;
  flex: 0 0 auto;
  background: var(--red);
  transition: width var(--t-fast), background-color var(--t-fast);
}
.footer-link:hover { color: var(--mint); }
.footer-link:hover::before { width: 18px; background: var(--mint); }

.footer-address {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.9;
  letter-spacing: .03em;
  color: var(--silver);
  overflow-wrap: anywhere;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  background: rgba(11, 12, 14, .55);
}
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 16px var(--shell-pad) 22px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--silver);
}
.footer-copy { color: var(--silver); }
.footer-icp { color: var(--silver-lt); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
.footer-legal-link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.footer-legal-link:hover { color: var(--ivory); border-bottom-color: var(--red); }

@media (max-width: 900px) {
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .footer-nav { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   无障碍与动效偏好
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .rail-dot, .footer-clock-dot { animation: none !important; }
  .figure:hover .figure-img { transform: none; }
}