/* =========================================================
   江南体育赛场 · 共享样式 /assets/site.css
   雨夜记分牌色系 + 左右分屏母版 + 园林窗格肌理
   ========================================================= */

:root {
  /* 品牌色 */
  --celadon: #1F6F63;
  --celadon-deep: #0E3B35;
  --celadon-pale: #CFE3DC;
  --mist: #F5F7F4;
  --amber: #DFA32A;
  --amber-pale: #F7E7C0;
  --track-red: #CE3A2E;
  --asphalt: #15181B;
  --silver: #9AA5A0;

  --line: rgba(21, 24, 27, 0.12);
  --line-light: rgba(245, 247, 244, 0.16);

  /* 形状 */
  --r-sm: 12px;
  --r-md: 20px;
  --r-lg: 28px;
  --pill: 999px;
  --shear: -8deg;

  /* 尺度 */
  --pad-x: clamp(18px, 5vw, 72px);
  --maxw: 1320px;
  --header-h: 84px;

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

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

html {
  background: var(--mist);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: transparent;
  color: var(--asphalt);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 水纹与窗格肌理（纯装饰，固定在最底层） */
body::before {
  content: "";
  position: fixed;
  inset: -8px;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(31, 111, 99, 0.05) 0 1px, transparent 1px 74px),
    repeating-linear-gradient(0deg, rgba(31, 111, 99, 0.04) 0 1px, transparent 1px 74px),
    radial-gradient(120% 80% at 6% 0%, rgba(223, 163, 42, 0.10), transparent 62%),
    radial-gradient(110% 70% at 100% 100%, rgba(31, 111, 99, 0.10), transparent 60%);
  animation: water-drift 20s ease-in-out infinite alternate;
}

@keyframes water-drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(6px, -6px, 0); }
}

img { max-width: 100%; display: block; }
main { display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.06;
  color: var(--celadon-deep);
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1.02; }
h2 { font-size: clamp(1.65rem, 3.4vw, 2.55rem); }
h3 { font-size: clamp(1.18rem, 2vw, 1.5rem); }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; }
a { color: var(--celadon); }
a:hover { color: var(--celadon-deep); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 通用工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.visually-hidden {
  position: absolute;
  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;
}

.stack > * + * { margin-top: var(--stack-gap, 1rem); }

.shear-band {
  height: 10px;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--celadon) 0%, var(--amber) 62%, var(--track-red) 100%);
  transform: skewX(var(--shear));
  opacity: 0.92;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 200;
  padding: 12px 22px;
  border-radius: 0 0 var(--r-md) var(--r-md);
  background: var(--amber);
  color: var(--asphalt);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top 180ms ease;
}

.skip-link:focus {
  top: 0;
  color: var(--asphalt);
}

/* =========================================================
   头部
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 80;
  color: var(--mist);
  background-color: transparent;
  background-image: linear-gradient(
    180deg,
    rgba(14, 59, 53, 0.88) 0%,
    rgba(14, 59, 53, 0.44) 62%,
    rgba(14, 59, 53, 0) 100%
  );
  transition: background-color 200ms ease, box-shadow 200ms ease, color 200ms ease;
}

.site-header[data-scrolled] {
  background-color: var(--celadon);
  background-image: none;
  box-shadow: 0 22px 46px -32px rgba(14, 59, 53, 0.95);
}

.site-header__inner {
  position: relative;
  max-width: var(--maxw);
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  padding: clamp(14px, 1.6vw, 22px) var(--pad-x);
  transition: padding 200ms ease, min-height 200ms ease;
}

.site-header[data-scrolled] .site-header__inner {
  min-height: 62px;
  padding-top: 9px;
  padding-bottom: 9px;
}

/* 品牌 */
.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--amber);
  color: var(--asphalt);
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background-color 180ms ease, color 180ms ease;
}

.brand:hover .brand__mark {
  background: var(--amber-pale);
}

.brand__lines { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
  letter-spacing: 0.05em;
  line-height: 1.15;
}

.brand__note {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

/* 导航 */
.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.site-nav__title { display: none; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.2vw, 18px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list__item { list-style: none; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 4px 11px;
  color: inherit;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: color 180ms ease;
}

.nav-link__idx {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.nav-link__label {
  transition: color 180ms ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 5px;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease;
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-link[aria-current="page"] .nav-link__label { color: var(--amber-pale); }

/* 头部按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.72em 1.4em;
  border: 1.5px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.btn--sm {
  padding: 0.56em 1.12em;
  font-size: 0.82rem;
}

.btn--amber {
  background: var(--amber);
  color: var(--asphalt);
}

.btn--amber:hover {
  background: var(--amber-pale);
  color: var(--asphalt);
}

.btn--deep {
  background: var(--celadon);
  color: var(--mist);
}

.btn--deep:hover {
  background: var(--celadon-deep);
  color: var(--mist);
}

.btn--ghost {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}

.btn--ghost:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--asphalt);
}

.header__cta { flex: 0 0 auto; }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 16px;
  border: 1.5px solid rgba(245, 247, 244, 0.5);
  border-radius: var(--pill);
  background: rgba(14, 59, 53, 0.3);
  color: var(--mist);
  font: inherit;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.nav-toggle:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--asphalt);
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms 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); }

/* 阅读进度条 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  overflow: hidden;
}

.scroll-meter__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--amber) 0%, var(--track-red) 100%);
  transition: width 140ms linear;
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 140px);
  background: var(--celadon-deep);
  color: var(--mist);
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(245, 247, 244, 0.055) 0 1px, transparent 1px 78px),
    repeating-linear-gradient(0deg, rgba(245, 247, 244, 0.045) 0 1px, transparent 1px 78px);
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 86px) var(--pad-x) clamp(26px, 3vw, 42px);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 4vw, 60px);
}

.footer-brand__mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--amber);
  color: var(--asphalt);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.footer-brand__name {
  margin: 16px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  line-height: 1.05;
  color: var(--mist);
}

.footer-brand__line {
  margin: 0;
  max-width: 20em;
  color: var(--celadon-pale);
  font-size: 0.95rem;
}

.footer-index__title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.footer-col__idx {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(223, 163, 42, 0.18);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.footer-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-list li + li { margin-top: 8px; }

.footer-link {
  color: var(--mist);
  font-size: 0.94rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 180ms ease, border-color 180ms ease;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.footer-contact {
  margin-top: clamp(30px, 4vw, 54px);
  padding-top: 22px;
  border-top: 1px solid var(--line-light);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 10px 28px;
}

.footer-contact__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 0.92rem;
  color: var(--celadon-pale);
}

.footer-contact__key {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.footer-legal {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 32px;
  font-size: 0.82rem;
  color: rgba(245, 247, 244, 0.68);
}

.footer-legal__note { margin: 0; max-width: 46em; }

.footer-legal__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

/* 返回顶部 */
.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 34px);
  bottom: clamp(14px, 3vw, 34px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 19px;
  border: 0;
  border-radius: var(--pill);
  background: var(--amber);
  color: var(--asphalt);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  box-shadow: 0 20px 36px -20px rgba(14, 59, 53, 0.8);
  transition: background-color 180ms ease, color 180ms ease;
}

.to-top:hover { background: var(--celadon); color: var(--mist); }
.to-top[hidden] { display: none; }

/* =========================================================
   通用版式组件
   ========================================================= */
.page-lead {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(30px, 5vw, 68px));
  padding-bottom: clamp(44px, 6vw, 92px);
  padding-inline: var(--pad-x);
  background:
    linear-gradient(158deg, var(--celadon-deep) 0%, var(--celadon) 66%, #17594F 100%);
  color: var(--mist);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
}

.page-lead h1,
.page-lead h2 { color: var(--mist); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(24px, 4vw, 64px);
}

.split--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split--3-9 { grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); }

.rail { position: relative; }

.vlabel {
  display: inline-flex;
  align-items: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--celadon);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--celadon);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber);
}

.section-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--celadon-pale);
  font-variant-numeric: tabular-nums;
}

.panel {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 34px);
  box-shadow: 0 26px 60px -50px rgba(14, 59, 53, 0.8);
}

.panel--tint {
  background: var(--celadon-pale);
  border-color: transparent;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--pill);
  background: var(--celadon-pale);
  color: var(--celadon-deep);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}

.chip--amber { background: var(--amber-pale); color: var(--asphalt); }
.chip--red { background: rgba(206, 58, 46, 0.12); color: var(--track-red); }

.stat {
  display: grid;
  gap: 2px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: var(--celadon-deep);
  color: var(--mist);
}

.stat__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--celadon-pale);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 0.8rem;
  color: var(--silver);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li + li::before {
  content: "／";
  margin-right: 10px;
  color: var(--silver);
}

.prose {
  max-width: 38em;
  font-size: 17px;
  line-height: 1.75;
}

.prose h2 { margin-top: 1.6em; }
.prose ul,
.prose ol { padding-left: 1.1em; }
.prose li + li { margin-top: 0.4em; }

/* 响应式图片容器 */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, var(--celadon-pale) 0%, rgba(31, 111, 99, 0.2) 55%, rgba(223, 163, 42, 0.26) 100%);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(14, 59, 53, 0.07) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(14, 59, 53, 0.06) 0 1px, transparent 1px 46px);
}

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

.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--21x9 { aspect-ratio: 21 / 9; }

.media__tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: var(--pill);
  background: rgba(21, 24, 27, 0.78);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 900px) {
  :root { --header-h: 74px; }

  .nav-toggle { display: inline-flex; }
  .header__cta { display: none; }

  .site-nav {
    position: absolute;
    top: calc(100% + 12px);
    left: var(--pad-x);
    right: var(--pad-x);
    margin: 0;
    display: block;
    padding: 20px;
    max-height: calc(100dvh - 150px);
    overflow-y: auto;
    background: var(--mist);
    color: var(--asphalt);
    border-radius: var(--r-lg);
    box-shadow: 0 34px 70px -34px rgba(14, 59, 53, 0.85);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 0s linear 180ms;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity 180ms ease, transform 180ms ease, visibility 0s;
  }

  .site-nav__title {
    display: block;
    margin: 0 0 12px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    color: var(--celadon);
  }

  .nav-list { display: block; }

  .nav-list__item + .nav-list__item {
    border-top: 1px solid var(--line);
  }

  .nav-link {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    padding: 13px 2px;
    color: var(--asphalt);
    font-size: 1rem;
  }

  .nav-link__idx {
    min-width: 2.4em;
    color: var(--celadon);
    font-size: 0.72rem;
  }

  .nav-link::after {
    left: 2px;
    right: auto;
    width: 34px;
    bottom: 7px;
    background: var(--track-red);
  }

  .nav-link:hover .nav-link__label { color: var(--track-red); }

  .nav-link[aria-current="page"] .nav-link__label {
    color: var(--celadon-deep);
    font-weight: 700;
  }

  .split,
  .split--5-7,
  .split--3-9 { grid-template-columns: minmax(0, 1fr); }

  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

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

@media (max-width: 600px) {
  body { font-size: 16px; }

  .grid-12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .brand__mark { width: 38px; height: 38px; font-size: 1.1rem; }

  .site-footer { border-radius: var(--r-md) var(--r-md) 0 0; }

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

  .to-top { padding: 10px 16px; font-size: 0.8rem; }
}

@media (max-width: 420px) {
  .brand__note { display: none; }
}

/* =========================================================
   动效降级
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0s !important;
  }

  body::before { animation: none; }
}