/* ============================================================
   HG皇官网免费 · 共享样式 /assets/site.css
   草原编号档案馆：深绿—暮蓝—沙白三段色彩，非对称 12 列网格
   ============================================================ */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, li, figure, figcaption, table, blockquote { margin: 0; }
ul, ol { padding: 0; }
img, svg { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; }

/* ---------- 变量 ---------- */
:root {
  --green-abyss: #0C2A20;
  --green-deep: #14503A;
  --green-meadow: #2E7D55;
  --dusk: #1B3B5F;
  --dusk-light: #3C6D96;
  --gold: #C8A24A;
  --gold-soft: #E7D093;
  --copper: #B0713C;
  --sand: #F5F1E6;
  --cloud: #FBFAF5;
  --ink: #101C17;
  --ink-soft: #1B2A23;
  --muted: #6B7A72;
  --glass: rgba(255, 255, 255, 0.14);
  --glass-line: rgba(255, 255, 255, 0.22);

  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  --shell: 1180px;
  --rail: 180px;
  --gutter: clamp(18px, 4.5vw, 48px);
  --section-gap: clamp(72px, 9vw, 140px);
  --radius-s: 4px;
  --radius-m: 12px;
  --radius-l: 22px;
}

/* ---------- 基础排版 ---------- */
body {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--ink);
  background-color: var(--sand);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-weight: 800; line-height: 1.14; letter-spacing: -0.02em; color: var(--ink); }
h1 { font-size: clamp(38px, 7vw, 96px); font-weight: 900; letter-spacing: -0.03em; }
h2 { font-size: clamp(26px, 3.6vw, 44px); }
h3 { font-size: clamp(19px, 2vw, 24px); }
strong { font-weight: 700; }

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

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 16px;
  top: -72px;
  z-index: 300;
  padding: 10px 20px;
  background: var(--gold);
  color: #1A1405;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 0 0 10px 10px;
  transition: top 0.22s ease;
}
.skip-link:focus { top: 0; }

/* ---------- 布局工具 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}
.col-main   { grid-column: 1 / span 7; }
.col-aside  { grid-column: 9 / span 4; }
.col-narrow { grid-column: 8 / span 5; }
.col-full   { grid-column: 1 / -1; }

.breather { height: clamp(60px, 9vw, 140px); }

/* ---------- 通用文字组件 ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--gold);
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  flex: 0 0 auto;
}

.num {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.rail {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.9;
  color: var(--muted);
}
.rail--vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.34em;
  color: rgba(245, 241, 230, 0.55);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background-color 0.22s ease, border-color 0.22s ease, color 0.22s ease, transform 0.22s ease;
}
.btn--gold { background: var(--gold); color: #1A1405; }
.btn--gold:hover { background: var(--gold-soft); transform: translateY(-1px); }
.btn--ghost { border-color: rgba(16, 28, 23, 0.28); color: var(--ink); }
.btn--ghost:hover { background: rgba(16, 28, 23, 0.06); }
.btn--onDark { border-color: rgba(245, 241, 230, 0.34); color: var(--cloud); }
.btn--onDark:hover { background: var(--gold); border-color: var(--gold); color: #1A1405; }

/* ---------- 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.crumbs a {
  color: #4E5F57;
  border-bottom: 1px solid rgba(78, 95, 87, 0.32);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.crumbs a:hover { color: var(--green-deep); border-bottom-color: var(--gold); }
.crumbs li:not(:last-child)::after { content: "/"; margin-left: 8px; color: rgba(107, 122, 114, 0.5); }

/* ---------- 正文容器 ---------- */
.prose { max-width: 70ch; font-size: 16.5px; line-height: 1.85; color: var(--ink-soft); }
.prose > * + * { margin-top: 1.05em; }
.prose h3 { margin-top: 2.2em; color: var(--ink); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.4em; }
.prose strong { color: var(--green-deep); }
.prose a { color: var(--green-deep); border-bottom: 1px solid var(--gold); }

/* ---------- 章节头 ---------- */
.section-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: 24px;
  align-items: end;
  padding: 26px 0 0 22px;
  border-top: 1px solid rgba(16, 28, 23, 0.14);
}
.section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  width: 2px;
  height: 0;
  background: linear-gradient(180deg, var(--gold), rgba(200, 162, 74, 0));
  transition: height 0.7s cubic-bezier(0.2, 0.7, 0.3, 1);
}
.section-head:not([data-reveal])::before,
.section-head[data-revealed]::before { height: calc(100% - 26px); }
.section-title { font-size: clamp(28px, 4vw, 52px); letter-spacing: -0.02em; }
.section-note { font-size: 12.5px; letter-spacing: 0.12em; line-height: 1.9; color: var(--muted); }

/* ---------- 表格化短句 ---------- */
.ledger-wrap { width: 100%; overflow-x: auto; }
.ledger { width: 100%; min-width: 520px; font-size: 15px; }
.ledger caption {
  caption-side: top;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-bottom: 12px;
}
.ledger th {
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(16, 28, 23, 0.2);
}
.ledger td {
  padding: 13px 12px;
  border-bottom: 1px solid rgba(16, 28, 23, 0.08);
  color: var(--ink);
  vertical-align: top;
}
.ledger td.num { font-family: var(--font-mono); font-weight: 600; letter-spacing: 0.02em; }
.ledger tbody tr { transition: background-color 0.2s ease; }
.ledger tbody tr:hover { background: rgba(46, 125, 85, 0.09); }

/* ---------- 年份轴 ---------- */
.year-axis {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  border-top: 1px solid rgba(245, 241, 230, 0.24);
  background: rgba(12, 42, 32, 0.28);
  scrollbar-width: none;
}
.year-axis::-webkit-scrollbar { display: none; }
.year-axis__item {
  position: relative;
  flex: 1 1 0;
  min-width: 96px;
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid rgba(245, 241, 230, 0.12);
  padding: 14px 16px;
  color: rgba(245, 241, 230, 0.7);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.22s ease, color 0.22s ease;
}
.year-axis__item:hover { background: rgba(255, 255, 255, 0.08); color: var(--cloud); }
.year-axis__item[data-active] {
  background: linear-gradient(180deg, rgba(200, 162, 74, 0.24), rgba(200, 162, 74, 0.05));
  color: #F0DFAF;
}
.year-axis__item[data-active]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--gold);
}

/* ---------- 场景图例与标签 ---------- */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  list-style: none;
  font-size: 12.5px;
  letter-spacing: 0.06em;
}
.legend__item { display: inline-flex; align-items: center; gap: 8px; color: #4E5F57; }
.legend__swatch { width: 10px; height: 10px; border-radius: 3px; background: var(--green-meadow); flex: 0 0 auto; }
.legend__item[data-scene="home"] .legend__swatch { background: var(--green-meadow); }
.legend__item[data-scene="business"] .legend__swatch { background: var(--dusk-light); }
.legend__item[data-scene="outdoor"] .legend__swatch { background: var(--gold); }

.scene-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.1em;
  background: transparent;
}
.scene-tag[data-scene="home"] { color: var(--green-meadow); }
.scene-tag[data-scene="business"] { color: var(--dusk-light); }
.scene-tag[data-scene="outdoor"] { color: #8A6A1E; }

/* ---------- 编号卡片 ---------- */
.dossier {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 26px 22px;
  background: var(--cloud);
  border-radius: var(--radius-s);
  box-shadow: 0 22px 44px -34px rgba(12, 42, 32, 0.7);
}
.dossier::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gold);
}
.dossier__id {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--green-deep);
}
.dossier__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 玻璃层 ---------- */
.glass-panel {
  padding: clamp(20px, 3vw, 28px);
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-l);
  backdrop-filter: blur(14px);
  color: var(--cloud);
}

/* ---------- 媒体容器（供页面阶段放置图片 / SVG 占位） ---------- */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-s);
  aspect-ratio: 16 / 10;
  background:
    radial-gradient(120% 90% at 12% 8%, rgba(60, 109, 150, 0.55), transparent 62%),
    linear-gradient(168deg, var(--green-deep) 0%, var(--dusk) 58%, var(--green-abyss) 100%);
}
.media__inner { position: absolute; inset: 0; }
.media__inner > img,
.media__inner > svg { width: 100%; height: 100%; object-fit: cover; }
.media--wide { aspect-ratio: 21 / 9; }
.media--rail { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--woven::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(200, 162, 74, 0.16) 0 1px, transparent 1px 46px);
}
.media--woven::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 26%;
  height: 1px;
  background: linear-gradient(90deg, rgba(245, 241, 230, 0.05), rgba(245, 241, 230, 0.5), rgba(245, 241, 230, 0.05));
}

/* ---------- 筛选条 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.filter-chip {
  appearance: none;
  border: 1px solid rgba(16, 28, 23, 0.18);
  border-radius: 999px;
  background: transparent;
  padding: 7px 15px;
  font-family: inherit;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: #3E4F47;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.filter-chip:hover { border-color: var(--green-meadow); color: var(--green-deep); }
.filter-chip[data-active] { background: var(--green-deep); border-color: var(--green-deep); color: var(--sand); }
.filter-count { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; color: var(--muted); }

/* ---------- 显现与隐藏协议 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal][data-revealed] { opacity: 1; transform: none; }
html:not([data-js]) [data-reveal] { opacity: 1; transform: none; }
[data-hidden] { display: none !important; }

/* ============================================================
   头部
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  padding-block: clamp(12px, 1.6vw, 20px);
  padding-inline: var(--gutter);
  background: linear-gradient(100deg, var(--green-abyss) 0%, var(--green-deep) 54%, var(--dusk) 100%);
  transition: padding-block 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(200, 162, 74, 0), rgba(200, 162, 74, 0.6), rgba(200, 162, 74, 0));
  opacity: 0;
  transition: opacity 0.35s ease;
}
.site-header[data-scrolled] {
  padding-block: 8px;
  box-shadow: 0 22px 46px -38px rgba(0, 0, 0, 0.95);
}
.site-header[data-scrolled]::after { opacity: 1; }

.header-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(14px, 2.4vw, 36px);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
}

/* 品牌署名 */
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand__mark {
  flex: 0 0 auto;
  padding: 7px 9px;
  border-radius: 8px;
  background: linear-gradient(160deg, var(--gold-soft), var(--gold));
  color: var(--green-abyss);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
}
.brand__stack { display: flex; flex-direction: column; min-width: 0; }
.brand__name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.2;
  color: var(--cloud);
  white-space: nowrap;
}
.brand__tag {
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.4;
  color: rgba(245, 241, 230, 0.62);
  white-space: nowrap;
}

/* 悬浮胶囊导航 */
.capsule-nav {
  justify-self: center;
  padding: 5px;
  border: 1px solid rgba(245, 241, 230, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: background-color 0.35s ease, border-color 0.35s ease;
}
.site-header[data-scrolled] .capsule-nav {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.28);
}
.capsule-nav__list { display: flex; align-items: center; gap: 2px; list-style: none; }
.capsule-nav__link {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(245, 241, 230, 0.78);
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.capsule-nav__link:hover { color: var(--cloud); background: rgba(255, 255, 255, 0.12); }
.capsule-nav__link[aria-current="page"] {
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  color: #20180A;
  font-weight: 600;
}

/* 右侧工具区 */
.header-tools {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 18px);
  justify-self: end;
}
.retrieval-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid rgba(200, 162, 74, 0.5);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold);
  white-space: nowrap;
  transition: background-color 0.22s ease, border-color 0.22s ease, color 0.22s ease;
}
.retrieval-link:hover { background: rgba(200, 162, 74, 0.16); border-color: var(--gold); color: var(--gold-soft); }
.retrieval-link__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: 0 0 auto; }
.ledger-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: rgba(245, 241, 230, 0.55);
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid rgba(245, 241, 230, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--cloud);
  font-size: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.nav-toggle:hover { background: rgba(255, 255, 255, 0.16); }
.nav-toggle__bars { display: flex; flex-direction: column; gap: 4px; width: 16px; }
.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s ease;
}
.site-header[data-open] .nav-toggle__bars i:first-child { transform: translateY(2.75px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars i:last-child { transform: translateY(-2.75px) rotate(-45deg); }

/* 阅读进度 */
.read-progress {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: rgba(245, 241, 230, 0.12);
}
.read-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--green-meadow), var(--gold));
  will-change: transform;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 140px);
  padding-block: clamp(56px, 8vw, 96px) clamp(26px, 4vw, 44px);
  background: linear-gradient(180deg, var(--green-abyss) 0%, #081C15 100%);
  color: rgba(245, 241, 230, 0.76);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(200, 162, 74, 0));
}
.footer-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.6fr;
  gap: clamp(24px, 4vw, 48px);
}
.footer-block--brand { min-width: 0; }
.footer-brand { font-size: 20px; font-weight: 800; letter-spacing: 0.01em; color: var(--cloud); }
.footer-line { margin-top: 8px; font-size: 13px; letter-spacing: 0.08em; color: rgba(245, 241, 230, 0.6); }
.footer-stamp { margin-top: 14px; font-size: 12px; letter-spacing: 0.1em; color: var(--gold); }
.footer-title {
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(245, 241, 230, 0.5);
}
.footer-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  list-style: none;
  font-size: 14px;
}
.footer-list a {
  color: rgba(245, 241, 230, 0.82);
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-list a:hover { color: var(--cloud); border-bottom-color: var(--gold); }
.footer-list--plain li { font-size: 13.5px; line-height: 1.65; color: rgba(245, 241, 230, 0.66); }
.footer-cta { margin-top: 18px; }
.footer-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(40px, 6vw, 64px);
  padding-top: 22px;
  border-top: 1px solid rgba(245, 241, 230, 0.14);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(245, 241, 230, 0.5);
}
.footer-note { max-width: 62ch; line-height: 1.8; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1120px) {
  .header-shell { grid-template-columns: 1fr auto; }
  .capsule-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: var(--gutter);
    right: var(--gutter);
    display: none;
    padding: 10px;
    border: 1px solid rgba(245, 241, 230, 0.18);
    border-radius: var(--radius-l);
    background: rgba(9, 31, 24, 0.97);
    box-shadow: 0 34px 70px -30px rgba(0, 0, 0, 0.9);
  }
  .site-header[data-open] .capsule-nav { display: block; }
  .capsule-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .capsule-nav__link { display: block; padding: 13px 16px; border-radius: 14px; font-size: 15px; }
  .nav-toggle { display: inline-flex; }
  .ledger-tag { display: none; }
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-main, .col-aside, .col-narrow, .col-full { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; align-items: start; gap: 14px; }
  .retrieval-link { display: none; }
  .brand__tag { display: none; }
  .rail--vertical { writing-mode: horizontal-tb; letter-spacing: 0.12em; }
}

@media (max-width: 620px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-foot { flex-direction: column; }
}

/* ============================================================
   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;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .section-head::before { height: calc(100% - 26px) !important; }
}