/* ============ 01 设计变量 ============ */
:root {
  --clr-navy: #0A1E3D;
  --clr-gold: #D4A017;
  --clr-red: #C43C3C;
  --clr-stone: #6E7B84;
  --clr-moss: #3A6B5D;
  --clr-terra: #C26B45;
  --clr-cream: #F4F0E6;
  --clr-ink: #14161A;
  --clr-slate: #E2E8EE;
  --clr-gold-soft: #EED791;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Roboto Mono", "Cascadia Code", "Fira Code", Consolas, monospace;
  --max-width: 1200px;
  --header-h: 64px;
  --radius: 2px;
  --ease-fast: 120ms ease;
  --ease-base: 200ms ease;
  --shadow-header: 0 4px 20px rgba(0, 0, 0, .18);
  --border-gold: rgba(212, 160, 23, .35);
}

/* ============ 02 Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--clr-ink);
  background: var(--clr-cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.25; font-weight: 800; }
p { margin: 0; }
ul, ol { margin: 0; padding-left: 1.2em; }
img, svg { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; font-size: 100%; }
a { color: var(--clr-navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
::selection { background: rgba(212, 160, 23, .28); color: var(--clr-navy); }

/* ============ 03 排版 ============ */
h1 { font-size: clamp(32px, 5vw, 44px); font-weight: 900; letter-spacing: -0.01em; }
h2 { font-size: clamp(22px, 3vw, 28px); font-weight: 800; letter-spacing: -0.005em; }
h3 { font-size: 18px; font-weight: 700; }
h4 { font-size: 16px; font-weight: 700; }

/* ============ 04 无障碍 ============ */
:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 2px;
}
.skip-link {
  position: fixed;
  top: -56px;
  left: 12px;
  z-index: 2000;
  background: var(--clr-gold);
  color: var(--clr-navy);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 18px;
  border-radius: var(--radius);
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .25);
  transition: top var(--ease-fast);
}
.skip-link:focus { top: 8px; }

/* ============ 05 容器与布局 ============ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}
.main-content { min-height: 60vh; }

/* ============ 06 头部 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-header);
}
.header-scan {
  height: 3px;
  background: rgba(212, 160, 23, .15);
  position: relative;
  overflow: hidden;
}
.header-scan__bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--clr-gold), var(--clr-gold-soft));
  transition: width 80ms linear;
}
.cmd-bar {
  position: relative;
  background:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px),
    var(--clr-navy);
  background-size: 22px 22px;
  border-bottom: 1px solid var(--border-gold);
}
.cmd-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--header-h);
  padding-top: 4px;
  padding-bottom: 4px;
}

/* 品牌单元 */
.brand-unit {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-unit__block {
  position: relative;
  display: inline-flex;
}
.brand-unit__logo {
  position: relative;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: rgba(212, 160, 23, .08);
  border: 1px solid var(--border-gold);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  color: var(--clr-gold);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  transition: background var(--ease-base), transform var(--ease-base);
}
.brand-unit__logo::after {
  content: "";
  position: absolute;
  right: 2px;
  bottom: 2px;
  width: 6px;
  height: 6px;
  background: var(--clr-red);
  box-shadow: 0 0 5px rgba(196, 60, 60, .7);
}
.brand-unit:hover .brand-unit__logo {
  background: rgba(212, 160, 23, .16);
  transform: translateY(-1px);
}
.brand-unit__status {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-red);
  box-shadow: 0 0 6px rgba(196, 60, 60, .85);
}
.brand-unit__text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}
.brand-unit__name {
  color: var(--clr-cream);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}
.brand-unit__dot { color: var(--clr-gold); }
.brand-unit__sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .22em;
  color: var(--clr-stone);
  text-transform: uppercase;
  white-space: nowrap;
}
.brand-unit__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--clr-gold);
  border: 1px solid var(--border-gold);
  background: rgba(212, 160, 23, .07);
  padding: 2px 6px;
  border-radius: var(--radius);
  margin-left: 2px;
}

/* ============ 07 导航 ============ */
.nav-rail {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, .18);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: 4px;
  padding: 3px;
}
.nav-rail__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  color: var(--clr-slate);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  position: relative;
  white-space: nowrap;
  transition: background var(--ease-fast), color var(--ease-fast);
}
.nav-rail__link:hover {
  background: rgba(212, 160, 23, .08);
  color: var(--clr-gold-soft);
}
.nav-rail__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--clr-stone);
  border: 1px solid rgba(110, 123, 132, .3);
  border-radius: 2px;
  padding: 0 4px;
  line-height: 1.6;
  transition: border-color var(--ease-fast), color var(--ease-fast);
}
.nav-rail__link:hover .nav-rail__idx {
  border-color: rgba(212, 160, 23, .45);
  color: var(--clr-gold-soft);
}
.nav-rail__link[aria-current="page"] {
  color: var(--clr-gold);
  font-weight: 700;
}
.nav-rail__link[aria-current="page"] .nav-rail__idx {
  border-color: var(--border-gold);
  color: var(--clr-gold);
  background: rgba(212, 160, 23, .08);
}
.nav-rail__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--clr-gold);
  border-radius: 1px 1px 0 0;
}
.nav-rail__link.is-scanning {
  background: rgba(212, 160, 23, .07);
}
.nav-rail__link.is-scanning .nav-rail__idx {
  border-color: rgba(212, 160, 23, .5);
  color: var(--clr-gold-soft);
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, .2);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  color: var(--clr-gold);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  padding: 8px 12px;
  cursor: pointer;
  line-height: 1.4;
}
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}
.nav-toggle__bar {
  display: block;
  height: 2px;
  background: var(--clr-gold);
  border-radius: 1px;
  transition: transform var(--ease-fast), opacity var(--ease-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 响应式导航 */
@media (max-width: 1024px) {
  .brand-unit__sub { display: none; }
  .nav-rail__link { padding: 8px 9px; gap: 4px; font-size: 13px; }
  .nav-rail__link[aria-current="page"]::after { left: 9px; right: 9px; }
}

@media (max-width: 860px) {
  .cmd-bar__inner { min-height: 56px; }
  .nav-toggle { display: inline-flex; }
  .brand-unit__logo { width: 38px; height: 38px; font-size: 14px; }
  .brand-unit__name { font-size: 16px; }
  .brand-unit__tag { display: none; }
  .nav-rail {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--clr-navy);
    border-top: 1px solid var(--border-gold);
    border-left: none;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    border-radius: 0;
    padding: 6px 12px 14px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, .35);
  }
  .nav-rail[data-open="true"] {
    display: block;
    animation: nav-drop 180ms ease;
  }
  @keyframes nav-drop {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .nav-rail__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-rail__link {
    padding: 13px 14px;
    border-radius: 2px;
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, .04);
  }
  .nav-rail__link:last-of-type { border-bottom: none; }
  .nav-rail__link[aria-current="page"]::after {
    left: 0;
    top: 0;
    bottom: 0;
    right: auto;
    width: 3px;
    height: auto;
    border-radius: 0 2px 2px 0;
  }
}

@media (max-width: 560px) {
  .container { padding-inline: 16px; }
  .cmd-bar__inner { gap: 10px; }
  .nav-toggle__text { display: none; }
  .nav-toggle { padding: 10px; }
}

/* ============ 08 页脚 ============ */
.site-footer {
  background:
    linear-gradient(rgba(255, 255, 255, .02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .02) 1px, transparent 1px),
    var(--clr-navy);
  background-size: 24px 24px;
  color: var(--clr-slate);
  font-size: 14px;
  line-height: 1.7;
  border-top: 3px solid var(--clr-gold);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.1fr;
  gap: 44px;
  padding: 48px 0 36px;
}
.footer-brand__mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 14px;
}
.footer-brand__logo {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: rgba(212, 160, 23, .08);
  border: 1px solid var(--border-gold);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  color: var(--clr-gold);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
  transition: background var(--ease-base);
}
.footer-brand__mark:hover .footer-brand__logo { background: rgba(212, 160, 23, .16); }
.footer-brand__name {
  color: var(--clr-cream);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}
.footer-brand__accent { color: var(--clr-gold); }
.footer-brand__desc {
  color: var(--clr-slate);
  font-size: 14px;
  line-height: 1.8;
  max-width: 36em;
  opacity: .92;
}
.footer-brand__trust {
  margin-top: 14px;
  font-size: 13px;
  color: var(--clr-stone);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-left: 2px solid rgba(212, 160, 23, .25);
  padding-left: 10px;
}
.footer-column {
  min-width: 0;
}
.footer-heading {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-gold);
  border-bottom: 1px solid rgba(212, 160, 23, .22);
  padding-bottom: 8px;
  margin-bottom: 14px;
}
.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-list__item + .footer-list__item { margin-top: 7px; }
.footer-list__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--clr-slate);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--ease-fast);
}
.footer-list__link:hover { color: var(--clr-gold-soft); }
.footer-list__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clr-stone);
  transition: color var(--ease-fast);
}
.footer-list__link:hover .footer-list__idx { color: var(--clr-gold); }
.footer-contact {
  font-style: normal;
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid rgba(212, 160, 23, .3);
}
.footer-contact__line {
  font-size: 13px;
  color: var(--clr-slate);
  margin: 5px 0;
}
.footer-contact__label {
  display: inline-block;
  min-width: 2.4em;
  color: var(--clr-stone);
  font-family: var(--font-mono);
  font-size: 11px;
}
.footer-contact__note {
  margin-top: 8px;
  font-size: 12px;
  color: var(--clr-stone);
}
.footer-legal {
  background: rgba(0, 0, 0, .18);
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.footer-legal__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 14px;
  padding-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clr-stone);
}
.footer-legal__copy,
.footer-legal__icp,
.footer-legal__status {
  margin: 0;
}
.footer-legal__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--clr-moss);
  box-shadow: 0 0 6px rgba(58, 107, 93, .7);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 36px 0 28px;
  }
  .footer-legal__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ============ 09 按钮 ============ */
.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--clr-gold);
  color: var(--clr-navy);
  border: 1px solid var(--clr-gold);
  border-radius: var(--radius);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--ease-base), box-shadow var(--ease-base), transform var(--ease-base);
}
.site-btn:hover {
  background: var(--clr-gold-soft);
  border-color: var(--clr-gold-soft);
  box-shadow: 0 4px 14px rgba(212, 160, 23, .32);
  transform: translateY(-1px);
}
.site-btn--ghost {
  background: transparent;
  color: var(--clr-gold);
  border-color: rgba(212, 160, 23, .55);
}
.site-btn--ghost:hover {
  border-color: var(--clr-gold);
  background: rgba(212, 160, 23, .06);
  box-shadow: none;
}

/* ============ 10 标签 ============ */
.tag-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  padding: 2px 8px;
  border: 1px solid;
  border-radius: var(--radius);
  line-height: 1.6;
  white-space: nowrap;
}
.tag-chip--gold {
  color: var(--clr-gold);
  border-color: rgba(212, 160, 23, .5);
  background: rgba(212, 160, 23, .08);
}
.tag-chip--red {
  color: var(--clr-red);
  border-color: rgba(196, 60, 60, .5);
  background: rgba(196, 60, 60, .06);
}
.tag-chip--moss {
  color: var(--clr-moss);
  border-color: rgba(58, 107, 93, .5);
  background: rgba(58, 107, 93, .06);
}

/* ============ 11 面包屑 ============ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clr-stone);
}
.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: var(--clr-stone);
  opacity: .55;
}
.breadcrumb__link {
  color: var(--clr-stone);
  text-decoration: none;
  transition: color var(--ease-fast);
}
.breadcrumb__link:hover { color: var(--clr-gold); }
.breadcrumb__item[aria-current="page"] {
  color: var(--clr-navy);
  font-weight: 700;
}

/* ============ 12 页面标题 ============ */
.page-head {
  position: relative;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 3px solid var(--clr-navy);
}
.page-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 84px;
  height: 3px;
  background: var(--clr-gold);
}
.page-head__title {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--clr-navy);
}
.page-head__desc {
  color: var(--clr-stone);
  font-size: 16px;
  line-height: 1.75;
  max-width: 720px;
  margin-top: 8px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--clr-gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--clr-gold);
}
.section-label__num {
  font-size: 22px;
  font-weight: 800;
  color: var(--clr-gold);
  font-family: var(--font-mono);
}
.chapter-idx {
  font-family: var(--font-mono);
  font-size: clamp(56px, 8vw, 88px);
  line-height: .94;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 2px var(--clr-gold);
  user-select: none;
}

/* ============ 13 数据组件 ============ */
.data-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 3), 1fr);
  gap: var(--gap, 20px);
}
.data-panel {
  position: relative;
  background: var(--clr-cream);
  border: 1px solid var(--clr-slate);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 1px 0 rgba(10, 30, 61, .04);
  transition: box-shadow var(--ease-base), border-color var(--ease-base);
}
.data-panel:hover {
  box-shadow: 0 6px 18px rgba(10, 30, 61, .08);
  border-color: rgba(212, 160, 23, .4);
}
.data-panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 26px;
  height: 26px;
  border-top: 3px solid var(--clr-gold);
  border-left: 3px solid var(--clr-gold);
  border-radius: var(--radius) 0 0 0;
}
.data-panel--dark {
  background: var(--clr-navy);
  border-color: rgba(212, 160, 23, .18);
  color: var(--clr-slate);
}
.data-panel--dark .data-panel__title { color: var(--clr-cream); }
.data-panel__title {
  font-size: 18px;
  font-weight: 800;
  color: var(--clr-navy);
  margin-bottom: 8px;
}
.data-panel__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--clr-stone);
}
.data-num {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--clr-navy);
}
.data-panel--dark .data-num { color: var(--clr-gold); }

/* 功能区标签条 */
.tag-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--clr-slate);
  border-bottom: 1px solid var(--clr-slate);
  background: rgba(226, 232, 238, .35);
}

@media (max-width: 900px) {
  .data-grid { grid-template-columns: repeat(var(--cols-md, 2), 1fr); }
}
@media (max-width: 560px) {
  .data-grid { grid-template-columns: 1fr; }
}

/* ============ 14 媒体占位 ============ */
.media-frame {
  position: relative;
  min-height: 180px;
  background-color: var(--clr-slate);
  background-image:
    linear-gradient(45deg, rgba(10, 30, 61, .06) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(10, 30, 61, .06) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(10, 30, 61, .06) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(10, 30, 61, .06) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  border: 1px solid var(--clr-stone);
  display: grid;
  place-items: center;
  color: var(--clr-stone);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}
.media-frame::before {
  content: attr(data-caption);
  display: block;
  padding: 6px 12px;
  background: rgba(244, 240, 230, .82);
  border: 1px solid rgba(110, 123, 132, .3);
  border-radius: var(--radius);
  backdrop-filter: none;
}
.media-frame--dark {
  background-color: var(--clr-navy);
  background-image:
    linear-gradient(45deg, rgba(255, 255, 255, .035) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, .035) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, .035) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, .035) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  border-color: rgba(212, 160, 23, .25);
}
.media-frame--dark::before {
  background: rgba(10, 30, 61, .8);
  color: var(--clr-gold-soft);
  border-color: rgba(212, 160, 23, .3);
}

/* ============ 15 详情样式 ============ */
.tag-strip { margin-bottom: 28px; }
.page-head + .tag-strip { margin-top: -12px; }

/* ============ 16 减少动效 ============ */
@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;
  }
  .header-scan__bar {
    transition: none;
  }
  .footer-legal__dot {
    animation: none;
  }
  .nav-rail[data-open="true"] {
    animation: none;
  }
}