/* ==========================================================================
   compass-bomao.com.cn / 博猫CN 共享样式表  /assets/site.css
   夜航罗盘：午夜深底 + 猫眼绿 + 琥珀金 + 硬边框硬阴影
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; }
summary { list-style: none; }

:root {
  --ink: #060B18;
  --ink-2: #0E1830;
  --ink-3: #16233F;
  --edge: #2A3C60;
  --green: #3DDC97;
  --green-deep: #1B7A57;
  --amber: #F2B24C;
  --coral: #FF6B4A;
  --violet: #7C6BFF;
  --paper: #F4F7FB;
  --mist: #9AA7BD;

  --shadow: 6px 6px 0 0 #03070F;
  --shadow-sm: 3px 3px 0 0 #03070F;

  --font-display: 'Space Grotesk', 'Archivo', 'Noto Sans SC', system-ui, sans-serif;
  --font-editorial: 'Noto Serif SC', 'Source Han Serif SC', serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;

  --shell-max: 1280px;
  --gutter: clamp(18px, 4vw, 40px);
  --grid-line: rgba(61, 220, 151, 0.05);
}

/* ---------- 基础排版：深底网格 + 中文阅读节奏 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(to right, var(--grid-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, var(--grid-line) 0 1px, transparent 1px 96px);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h1 { font-size: clamp(30px, 5vw, 64px); }
h2 { font-size: clamp(26px, 3.4vw, 44px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
p { max-width: 68ch; }
::selection { background: var(--green); color: #04140C; }

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

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

/* ---------- 跳转链 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--green);
  color: #04140C;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid #04140C;
  box-shadow: var(--shadow-sm);
  transition: top 0.18s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- 刊头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--ink);
  border-bottom: 2px solid var(--edge);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header.is-compact {
  background: var(--ink-2);
  box-shadow: 0 6px 0 0 rgba(3, 7, 15, 0.72);
}
.site-header__shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 26px var(--gutter) 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-template-areas:
    "stamp id tools"
    "nav nav nav";
  align-items: center;
  gap: 14px 24px;
}
.masthead__rail {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--mist);
}
.masthead__rail--start {
  grid-area: stamp;
  justify-self: start;
  letter-spacing: 0.1em;
}
.masthead__rail--end {
  grid-area: tools;
  justify-self: end;
  justify-content: flex-end;
}
.masthead__id {
  grid-area: id;
  justify-self: center;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__beacon {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 2px solid var(--green);
  border-radius: 50%;
  box-shadow: inset 0 0 0 4px rgba(61, 220, 151, 0.12);
}
.brand__pupil {
  position: absolute;
  inset: 0;
  margin: auto;
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(242, 178, 76, 0.18);
}
.brand__word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
  letter-spacing: 0.02em;
}
.brand__tagline {
  font-family: var(--font-editorial);
  font-size: 14px;
  color: var(--mist);
  letter-spacing: 0.26em;
}
.brand__tagline--footer { letter-spacing: 0.22em; }
.brand--footer .brand__word { font-size: 26px; }

.utility-link {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
  padding: 6px 10px;
  border: 2px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}
.utility-link:hover {
  color: var(--paper);
  border-color: var(--coral);
  transform: translate(-2px, -2px);
}

/* ---------- 导航 ---------- */
.site-nav {
  grid-area: nav;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 2px solid var(--edge);
}
.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(14px, 3vw, 40px);
}
.site-nav__item { display: block; }
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 4px 12px;
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--mist);
  transition: color 0.16s ease;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 3px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}
.site-nav__link:hover,
.site-nav__link:focus-visible { color: var(--paper); }
.site-nav__link:hover::after,
.site-nav__link:focus-visible::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: var(--green); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-sm);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: border-color 0.16s ease, transform 0.16s ease;
}
.nav-toggle:hover { border-color: var(--coral); transform: translate(-2px, -2px); }
.nav-toggle__bars {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--green);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--green);
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.nav-toggle__text { font-weight: 700; }
.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 罗盘滚动进度 ---------- */
.compass-progress {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 80;
  width: 54px;
  height: 54px;
  border: 2px solid var(--edge);
  border-radius: 50%;
  background: rgba(6, 11, 24, 0.88);
  pointer-events: none;
}
.compass-progress__ring {
  position: absolute;
  inset: 9px;
  border: 1px dashed var(--edge);
  border-radius: 50%;
}
.compass-progress__tick {
  position: absolute;
  top: 4px;
  left: 50%;
  width: 2px;
  height: 8px;
  background: var(--amber);
  transform: translateX(-50%);
}
.compass-progress__needle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 20px;
  background: var(--green);
  transform-origin: 50% 100%;
  transform: translate(-50%, -100%) rotate(0deg);
  transition: transform 0.24s ease;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  margin-top: clamp(56px, 8vw, 120px);
  background: var(--ink-2);
  border-top: 2px solid var(--edge);
}
.site-footer__shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(36px, 5vw, 64px) var(--gutter) 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.45fr);
  gap: clamp(28px, 4vw, 64px);
}
.site-footer__ident {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}
.site-footer__contact-line {
  font-size: 15px;
  color: var(--mist);
  max-width: 46ch;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--mist);
}
.contact-list__item {
  position: relative;
  padding-left: 16px;
  word-break: break-word;
}
.contact-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}
.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.footer-nav__col { display: block; }
.footer-nav__title {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--green);
}
.footer-nav__list { display: flex; flex-direction: column; gap: 10px; }
.footer-nav__link {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  font-size: 15px;
  color: var(--mist);
  transition: color 0.16s ease;
}
.footer-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--coral);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}
.footer-nav__link:hover { color: var(--paper); }
.footer-nav__link:hover::after { transform: scaleX(1); }

.site-footer__base {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 18px var(--gutter) 30px;
  border-top: 2px solid var(--edge);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-footer__legal { font-size: 13px; color: var(--mist); }
.footer-compass { display: flex; align-items: center; gap: 10px; }
.footer-compass__link {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 2px solid var(--edge);
  border-radius: 50%;
  transition: border-color 0.16s ease, transform 0.16s ease;
}
.footer-compass__link:hover { border-color: var(--coral); transform: translate(-2px, -2px); }
.footer-compass__ring {
  position: absolute;
  inset: 7px;
  border: 1px dashed var(--edge);
  border-radius: 50%;
}
.footer-compass__needle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 14px;
  background: var(--amber);
  transform-origin: 50% 100%;
  transform: translate(-50%, -100%) rotate(18deg);
}
.footer-compass__hint { font-size: 12px; letter-spacing: 0.16em; color: var(--mist); }

/* ---------- 反馈浮标 ---------- */
.feedback-dock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.feedback-dock__toggle {
  padding: 12px 16px;
  background: var(--ink-3);
  border: 2px solid var(--green);
  box-shadow: var(--shadow-sm);
  color: var(--paper);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: border-color 0.16s ease, transform 0.16s ease, color 0.16s ease;
}
.feedback-dock__toggle:hover {
  border-color: var(--coral);
  color: var(--coral);
  transform: translate(-2px, -2px);
}
.feedback-dock__panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(78vw, 300px);
  padding: 14px;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow);
}
.feedback-dock__panel[hidden] { display: none; }
.feedback-dock__link { font-size: 15px; font-weight: 700; color: var(--green); }
.feedback-dock__link:hover { color: var(--coral); }
.feedback-dock__meta { font-size: 13px; color: var(--mist); word-break: break-all; }

/* ==========================================================================
   通用按钮 / 链接
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.04em;
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
  transition: transform 0.16s ease, border-color 0.16s ease,
              background-color 0.16s ease, color 0.16s ease;
}
.btn:active { transform: translate(1px, 1px); box-shadow: none; }
.btn--primary { background: var(--green); color: #04140C; border-color: #04140C; }
.btn--primary:hover {
  background: var(--green-deep);
  color: var(--paper);
  border-color: var(--coral);
  transform: translate(-2px, -2px);
}
.btn--line { background: transparent; color: var(--amber); border-color: var(--amber); }
.btn--line:hover { color: var(--coral); border-color: var(--coral); transform: translate(-2px, -2px); }
.btn--quiet { background: var(--ink-3); color: var(--paper); border-color: var(--edge); }
.btn--quiet:hover { border-color: var(--coral); transform: translate(-2px, -2px); }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--green);
  border-bottom: 2px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}
.link-more:hover {
  color: var(--coral);
  border-color: var(--coral);
  transform: translate(2px, 0);
}

/* ==========================================================================
   版面容器 / 网格 / 章节
   ========================================================================== */
.shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.page-body { padding: clamp(28px, 5vw, 64px) 0 0; }

.section { padding: clamp(36px, 6vw, 84px) 0; }
.section--band {
  background: var(--ink-2);
  border-top: 2px solid var(--edge);
  border-bottom: 2px solid var(--edge);
}
.section__index {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--green);
}
.section__title { margin-bottom: 14px; }
.section__note { max-width: 60ch; font-size: 15px; color: var(--mist); }

.lede {
  font-family: var(--font-editorial);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.7;
  color: var(--paper);
}

.grid { display: grid; gap: clamp(20px, 3vw, 32px); }
.grid--split { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: start; }
.grid--cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid--readouts { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* ---------- 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.crumbs__link { color: var(--mist); }
.crumbs__link:hover { color: var(--green); }
.crumbs__sep { color: var(--edge); }
.crumbs__current { color: var(--amber); }

/* ---------- 卡片 / 读数 / 标签 / 旁注 ---------- */
.card {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow);
}
.card--flat { box-shadow: none; }
.card__title { margin-bottom: 8px; font-size: 20px; }
.card__text { font-size: 15px; color: var(--mist); }

.readout {
  padding: 18px 20px;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-sm);
}
.readout__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.2;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}
.readout__label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  background: var(--ink-2);
  border: 2px solid var(--edge);
}
.tag--live { color: var(--green); border-color: var(--green-deep); }
.tag--violet { color: var(--violet); border-color: var(--violet); }
.tag--amber { color: var(--amber); border-color: var(--amber); }

.note-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-left: 18px;
  border-left: 2px solid var(--edge);
}
.note-rail__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--violet);
}
.note-rail__text { font-size: 14px; color: var(--mist); }

/* ---------- 折叠面板 ---------- */
.fold {
  margin-bottom: 14px;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-sm);
}
.fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
}
.fold__summary::-webkit-details-marker { display: none; }
.fold__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--green);
}
.fold[open] .fold__summary::after { content: "–"; }
.fold__summary:hover { color: var(--green); }
.fold__body { padding: 0 20px 20px; font-size: 15px; color: var(--mist); }

/* ---------- 对照表 ---------- */
.table-scroll {
  overflow-x: auto;
  background: var(--ink-3);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-sm);
}
.ledger { width: 100%; min-width: 520px; font-size: 15px; }
.ledger th,
.ledger td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--edge);
}
.ledger thead th {
  background: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--green);
}
.ledger tbody tr:hover { background: rgba(61, 220, 151, 0.06); }
.ledger .num {
  font-family: var(--font-mono);
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

/* ---------- 图像容器（页面阶段放图） ---------- */
.figure-frame {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border: 2px solid var(--edge);
  box-shadow: var(--shadow);
}
.figure-frame img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}
.figure-frame--tall img { aspect-ratio: 4 / 5; }
.figure-frame--wide img { aspect-ratio: 21 / 9; }
.figure-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  background: rgba(6, 11, 24, 0.86);
  border-top: 2px solid var(--edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(244, 247, 251, 0.04) 0 1px,
    transparent 1px 4px
  );
}

/* ---------- 显现动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   压缩态（桌面端滚动后）
   ========================================================================== */
@media (min-width: 901px) {
  .site-header.is-compact .site-header__shell {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "id nav tools";
    gap: 28px;
    padding: 12px var(--gutter);
  }
  .site-header.is-compact .masthead__rail--start { display: none; }
  .site-header.is-compact .masthead__id {
    justify-self: start;
    text-align: left;
    flex-direction: row;
    align-items: center;
    gap: 14px;
  }
  .site-header.is-compact .brand__tagline { display: none; }
  .site-header.is-compact .site-nav {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }
  .site-header.is-compact .site-nav__list { justify-content: flex-end; }
  .site-header.is-compact .site-nav__link { padding: 6px 4px 8px; }
}

/* ==========================================================================
   平板 / 手机
   ========================================================================== */
@media (max-width: 900px) {
  .site-header__shell {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "id tools"
      "nav nav";
    gap: 12px 16px;
    padding: 16px var(--gutter) 12px;
  }
  .masthead__rail--start { display: none; }
  .masthead__id {
    justify-self: start;
    text-align: left;
    align-items: flex-start;
    gap: 4px;
  }
  .brand__tagline { font-size: 12px; letter-spacing: 0.16em; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    margin-top: 0;
    padding-top: 8px;
  }
  .site-header[data-open] .site-nav { display: block; }
  .site-nav__list { flex-direction: column; gap: 0; }
  .site-nav__link {
    display: block;
    padding: 14px 2px;
    border-bottom: 1px solid rgba(42, 60, 96, 0.65);
  }
  .site-nav__link::after { display: none; }
  .site-nav__link[aria-current="page"] {
    padding-left: 12px;
    box-shadow: inset 3px 0 0 0 var(--amber);
  }
  .site-footer__shell { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .masthead__rail--end .utility-link { display: none; }
  .footer-nav { grid-template-columns: minmax(0, 1fr); }
  .site-footer__base { flex-direction: column; align-items: flex-start; }
  .compass-progress { left: 12px; bottom: 12px; width: 44px; height: 44px; }
  .compass-progress__needle { height: 16px; }
  .feedback-dock { right: 12px; bottom: 12px; }
  .feedback-dock__toggle { padding: 11px 14px; font-size: 13px; }
}

/* ==========================================================================
   无障碍：减少动态
   ========================================================================== */
@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; transform: none; }
  .compass-progress__needle { transition: none; }
  .skip-link { transition: none; }
}