/* ============================================================
   银河总站官网 · 共享样式 /assets/site.css
   夜航星图 · 未来档案感 —— 命令栏 + 纵向叙事 + 刻度带页脚
   ============================================================ */

:root {
  --ink: #070A12;
  --ink-deep: #05070D;
  --ink-soft: #0C1220;
  --blue: #1B3B6F;
  --nebula: #6E4A9E;
  --cyan: #39D0D8;
  --gold: #D9A441;
  --stone: #5B6470;
  --moss: #6F7F5A;
  --clay: #B36A4C;
  --paper: #F2EFE7;
  --mist: #E6EAF2;

  --fg: var(--mist);
  --fg-dim: #A6B0C3;
  --fg-faint: #6C7891;
  --line: rgba(230, 234, 242, 0.13);
  --line-strong: rgba(230, 234, 242, 0.28);

  --font-title: "Archivo Black", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "Source Han Serif SC", Georgia, serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: ui-monospace, "IBM Plex Mono", "Noto Sans Mono SC", "SFMono-Regular", Menlo, Consolas, monospace;

  --radius: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --bar-h: 64px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --edge: clamp(1.1rem, 3.4vw, 2.6rem);

  color-scheme: dark;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  background: var(--ink);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
body {
  position: relative;
  min-height: 100vh;
  background: transparent;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.78;
  letter-spacing: 0.012em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(56% 42% at 84% -8%, rgba(110, 74, 158, 0.30), transparent 62%),
    radial-gradient(48% 40% at 4% 12%, rgba(27, 59, 111, 0.44), transparent 66%),
    radial-gradient(42% 36% at 52% 106%, rgba(57, 208, 216, 0.10), transparent 70%);
}
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

::selection { background: var(--nebula); color: #fff; }

* { scrollbar-width: thin; scrollbar-color: rgba(91, 100, 112, 0.7) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: rgba(91, 100, 112, 0.62);
  border-radius: 999px;
  border: 3px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: rgba(57, 208, 216, 0.62); background-clip: content-box; }

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

/* ---------- 中文排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.18;
  color: var(--paper);
  letter-spacing: 0.012em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.1rem, 6vw, 4.2rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.02rem; }
p { text-wrap: pretty; }
strong { color: var(--paper); font-weight: 700; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.lede {
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 1.95;
  color: var(--fg-dim);
  max-width: 62ch;
}

.prose { max-width: 72ch; color: var(--fg-dim); }
.prose > * + * { margin-top: 1.05em; }
.prose h2, .prose h3 { margin-top: 1.9em; color: var(--paper); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose ul li { list-style: none; position: relative; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: 0.85em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0.8;
}
.prose ol { list-style: decimal; }
.prose a { color: var(--cyan); text-decoration: underline; text-underline-offset: 4px; }
.prose blockquote {
  border-left: 2px solid var(--nebula);
  padding-left: 1.1rem;
  color: var(--fg-faint);
}

/* ---------- 布局容器 ---------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--edge);
}

.section { padding-block: clamp(3rem, 7.5vw, 6.6rem); }

.section__head {
  display: grid;
  gap: 0.9rem 2rem;
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}
.section__index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--cyan);
}
.section__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  line-height: 1.3;
  color: var(--paper);
}
.section__lede { color: var(--fg-dim); max-width: 64ch; }
@media (min-width: 860px) {
  .section__head { grid-template-columns: 8.5rem minmax(0, 1fr); align-items: start; }
  .section__head .section__index { padding-top: 0.5rem; }
}

.grid { display: grid; gap: clamp(1rem, 2.4vw, 1.8rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1040px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 面板 ---------- */
.panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.15rem, 2.6vw, 1.9rem);
  background:
    linear-gradient(168deg, rgba(20, 30, 52, 0.82), rgba(9, 13, 24, 0.92));
  overflow: hidden;
}
.panel::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 74, 158, 0.24), transparent 68%);
  pointer-events: none;
}
.panel--paper {
  background: var(--paper);
  color: #191D27;
  border-color: rgba(7, 10, 18, 0.14);
}
.panel--paper h2, .panel--paper h3, .panel--paper h4, .panel--paper strong { color: #10141C; }
.panel--clay { border-color: rgba(179, 106, 76, 0.55); }
.panel--moss { border-color: rgba(111, 127, 90, 0.55); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.74rem 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.2;
  transition: transform 0.24s var(--ease), background-color 0.24s, border-color 0.24s, color 0.24s, box-shadow 0.24s;
}
.btn--primary {
  background: linear-gradient(120deg, var(--blue), var(--nebula));
  color: #fff;
  box-shadow: 0 16px 34px -20px rgba(110, 74, 158, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 44px -20px rgba(57, 208, 216, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.btn--ghost {
  border-color: var(--line-strong);
  color: var(--paper);
  background: rgba(27, 59, 111, 0.22);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
}
.breadcrumbs__list { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.breadcrumbs__item { display: inline-flex; align-items: center; gap: 0.5rem; }
.breadcrumbs__item + .breadcrumbs__item::before { content: "/"; color: var(--stone); }
.breadcrumbs__link { color: var(--fg-dim); transition: color 0.2s; }
.breadcrumbs__link:hover { color: var(--cyan); }
.breadcrumbs__item[aria-current="page"] { color: var(--paper); }

/* ---------- 标签 ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.24rem 0.62rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  color: var(--fg-dim);
  white-space: nowrap;
}
.chip--cyan { border-color: rgba(57, 208, 216, 0.5); color: var(--cyan); }
.chip--gold { border-color: rgba(217, 164, 65, 0.5); color: var(--gold); }
.chip--moss { border-color: rgba(111, 127, 90, 0.62); color: #9DB183; }
.chip--clay { border-color: rgba(179, 106, 76, 0.62); color: #DC9371; }
.chip--nebula { border-color: rgba(142, 104, 196, 0.62); color: #B89CE2; }

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(60% 70% at 78% 16%, rgba(110, 74, 158, 0.36), transparent 62%),
    radial-gradient(52% 62% at 14% 86%, rgba(27, 59, 111, 0.5), transparent 68%),
    var(--ink-soft);
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(230, 234, 242, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 234, 242, 0.055) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(72% 72% at 42% 40%, #000 22%, transparent 78%);
  mask-image: radial-gradient(72% 72% at 42% 40%, #000 22%, transparent 78%);
}
.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}
.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.6rem 1.15rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: linear-gradient(180deg, transparent, rgba(5, 7, 13, 0.88));
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* ---------- 滚动显现 ---------- */
[data-js="ready"] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
[data-js="ready"] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: var(--edge);
  z-index: 200;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  background: var(--cyan);
  color: #04131A;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: top 0.24s var(--ease);
}
.skip-link:focus { top: 0.85rem; }

/* ============================================================
   命令栏页头
   ============================================================ */
.cmd-bar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 10, 18, 0.88);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.cmd-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(57, 208, 216, 0.5) 22%, rgba(110, 74, 158, 0.5) 58%, transparent);
  opacity: 0.7;
}

.cmd-bar__inner {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--edge);
  min-height: var(--bar-h);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas: "brand nav status";
  align-items: center;
  gap: clamp(0.7rem, 1.8vw, 1.6rem);
}

/* 品牌 */
.brand {
  grid-area: brand;
  display: inline-flex;
  align-items: center;
  gap: 0.68rem;
  padding: 0.3rem 0.1rem;
}
.brand__mark {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(150deg, var(--blue), var(--nebula) 60%, var(--cyan));
  color: #fff;
  font-family: var(--font-title);
  font-size: 0.98rem;
  line-height: 1;
  box-shadow: 0 0 0 1px rgba(57, 208, 216, 0.26), 0 10px 24px -14px rgba(110, 74, 158, 0.95);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.16; }
.brand__name {
  font-family: var(--font-title);
  font-size: 0.96rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}
.brand__domain {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--fg-faint);
}

/* 导航 */
.cmd-nav { grid-area: nav; min-width: 0; }
.cmd-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex-wrap: nowrap;
}
.cmd-nav__item { display: inline-flex; }
.cmd-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.6rem;
  border-radius: 999px;
  font-size: 0.82rem;
  line-height: 1.3;
  color: var(--fg-dim);
  white-space: nowrap;
  transition: color 0.22s, background-color 0.22s;
}
.cmd-nav__index {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--stone);
  transition: color 0.22s;
}
.cmd-nav__link:hover { color: var(--paper); background: rgba(27, 59, 111, 0.45); }
.cmd-nav__link:hover .cmd-nav__index { color: var(--cyan); }
.cmd-nav__link[aria-current="page"] {
  color: var(--paper);
  background: linear-gradient(180deg, rgba(27, 59, 111, 0.8), rgba(27, 59, 111, 0.42));
}
.cmd-nav__link[aria-current="page"] .cmd-nav__index { color: var(--gold); }
.cmd-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  transform: translateX(-50%);
  background: var(--cyan);
  box-shadow: 0 0 9px rgba(57, 208, 216, 0.8);
}
.cmd-nav__item--gate .cmd-nav__link { color: var(--paper); }
.cmd-nav__item--gate .cmd-nav__link::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 9px 1px rgba(57, 208, 216, 0.75);
  animation: gate-pulse 2.8s ease-in-out infinite;
}
@keyframes gate-pulse {
  0%, 100% { opacity: 0.45; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* 状态 */
.cmd-status {
  grid-area: status;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding-left: 0.95rem;
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--fg-faint);
  max-width: 200px;
}
.cmd-status__dot {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 8px rgba(111, 127, 90, 0.9);
}
.cmd-status__text { display: block; }

/* 进度轨 */
.cmd-bar__meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(230, 234, 242, 0.06);
  overflow: hidden;
}
.cmd-bar__meter-fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan), var(--nebula) 46%, var(--gold));
  transition: transform 0.14s linear;
}

/* 移动导航按钮 */
.nav-toggle {
  grid-area: toggle;
  display: none;
  align-items: center;
  gap: 0.55rem;
  padding: 0.46rem 0.78rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(27, 59, 111, 0.3);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}
.nav-toggle__bars { display: grid; gap: 3px; width: 16px; }
.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.26s var(--ease), opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(4.5px) 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(-4.5px) rotate(-45deg); }

@media (max-width: 1180px) {
  .cmd-status { display: none; }
  .cmd-bar__inner { grid-template-columns: auto minmax(0, 1fr); grid-template-areas: "brand nav"; }
}
@media (max-width: 1080px) {
  .cmd-nav__index { display: none; }
  .cmd-nav__link { font-size: 0.81rem; padding: 0.48rem 0.55rem; }
}

/* 移动端：命令栏下拉面板 */
@media (max-width: 920px) {
  :root { --bar-h: 58px; }
  .cmd-bar__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand toggle";
    gap: 0.6rem;
  }
  .nav-toggle { display: inline-flex; }
  .cmd-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.7rem var(--edge) 1.3rem;
    background: rgba(7, 10, 18, 0.98);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    max-height: calc(100vh - var(--bar-h));
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
  }
  .cmd-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
  .cmd-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .cmd-nav__item { display: block; }
  .cmd-nav__link {
    width: 100%;
    justify-content: flex-start;
    padding: 0.82rem 0.4rem;
    border-radius: 12px;
    border-bottom: 1px solid rgba(230, 234, 242, 0.07);
    font-size: 0.94rem;
  }
  .cmd-nav__index { display: inline; font-size: 0.66rem; color: var(--cyan); }
  .cmd-nav__link[aria-current="page"] { background: rgba(27, 59, 111, 0.55); }
  .cmd-nav__link[aria-current="page"]::after { display: none; }
  .cmd-nav__item--gate .cmd-nav__link { background: rgba(27, 59, 111, 0.3); }
}

/* ============================================================
   页脚 · 星图刻度带
   ============================================================ */
.star-footer {
  position: relative;
  margin-top: clamp(3rem, 8vw, 6rem);
  color: var(--fg-dim);
  border-top: 1px solid rgba(57, 208, 216, 0.18);
  background:
    linear-gradient(180deg, rgba(11, 17, 32, 0.5), rgba(5, 7, 13, 0.96) 34%),
    radial-gradient(72% 92% at 88% 0%, rgba(110, 74, 158, 0.22), transparent 62%),
    var(--ink-deep);
  overflow: hidden;
}
.star-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 18%, var(--nebula) 52%, var(--gold) 80%, transparent);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3.2rem);
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  padding-block: clamp(2.6rem, 6vw, 4.4rem) clamp(1.6rem, 4vw, 2.6rem);
}
@media (max-width: 1000px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}

.footer-brand__name {
  font-family: var(--font-title);
  font-size: 1.2rem;
  color: var(--paper);
  letter-spacing: 0.02em;
}
.footer-brand__line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-top: 0.35rem;
}
.footer-brand__note {
  margin-top: 0.85rem;
  max-width: 34ch;
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--fg-dim);
}
.footer-brand .btn { margin-top: 1.4rem; }

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--stone);
  padding-bottom: 0.7rem;
  margin-bottom: 0.85rem;
  border-bottom: 1px dashed rgba(230, 234, 242, 0.14);
}
.footer-links { display: grid; gap: 0.5rem; }
.footer-links a {
  display: inline-block;
  font-size: 0.86rem;
  color: var(--fg-dim);
  transition: color 0.22s, transform 0.22s var(--ease);
}
.footer-links a:hover { color: var(--cyan); transform: translateX(3px); }
.footer-links--data li {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--fg-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  word-break: break-word;
}
.footer-links__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  color: var(--forest, var(--moss));
  color: var(--moss);
  text-transform: uppercase;
}

/* 刻度带 */
.footer-ruler {
  position: relative;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 10, 18, 0.62);
}
.footer-ruler__hint {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding: 0.85rem var(--edge) 0.1rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  color: var(--fg-faint);
}
.footer-ruler__track {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding: 0.9rem var(--edge) 1.35rem;
  display: flex;
  align-items: stretch;
  gap: clamp(1rem, 2.6vw, 2.2rem);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.footer-ruler__item {
  flex: 0 0 auto;
  min-width: 10.5rem;
  padding-left: 0.9rem;
  border-left: 1px dashed rgba(230, 234, 242, 0.18);
  scroll-snap-align: start;
}
.footer-ruler__item:first-child { border-left-color: rgba(57, 208, 216, 0.55); }
.footer-ruler__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
}
.footer-ruler__label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  color: var(--fg-dim);
}
.footer-ruler__count {
  display: block;
  margin-top: 0.18rem;
  font-family: var(--font-mono);
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.6rem;
  padding-block: 1.15rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--fg-faint);
}
.footer-bottom__legal { color: var(--fg-faint); }
.footer-bottom__copy { color: var(--stone); }

/* ---------- 动效与无障碍偏好 ---------- */
@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-js="ready"] [data-reveal] { opacity: 1 !important; transform: none !important; }
  .cmd-bar__meter-fill { transition: none; }
}