/* =========================================================
   LEYU赛场 · /assets/site.css
   高原夜色数据仪表盘：reset / 变量 / 排版 / 头部 / 页脚 / 通用组件
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul[class],
ol[class] {
  list-style: none;
  padding: 0;
}

img, svg, video {
  max-width: 100%;
}

button { font: inherit; }

a { -webkit-tap-highlight-color: transparent; }

/* ---------- tokens ---------- */
:root {
  --c-base: #0A1128;
  --c-base-deep: #070D1F;
  --c-panel: #111A3A;
  --c-panel-soft: #0D1530;
  --c-mint: #2EE6A8;
  --c-orange: #FF8A3D;
  --c-ink: #F5F2EA;
  --c-body: #D6D3C9;
  --c-mute: #8A94B8;
  --c-dim: #5F6B96;
  --c-hair: #2A3556;
  --c-shadow: rgba(0, 0, 0, .45);

  --lg-epl: #5B8CFF;
  --lg-laliga: #E86A92;
  --lg-seriea: #4FBF9F;
  --lg-bundesliga: #C2A15A;
  --lg-ligue1: #9A7BE0;
  --lg-csl: #E0705A;

  --ff-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --ff-cond: "Oswald", "Barlow Condensed", "Arial Narrow", "Noto Sans SC", sans-serif;
  --ff-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --ff-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  --frame: 1280px;
  --gut: clamp(16px, 4vw, 40px);
  --r: 3px;
  --shadow-card: 0 14px 34px var(--c-shadow);
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  color: var(--c-body);
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.7;
  background-color: var(--c-base);
  background-image:
    radial-gradient(1200px 620px at 78% -8%, rgba(46, 230, 168, .10), transparent 62%),
    radial-gradient(900px 520px at 4% 106%, rgba(154, 123, 224, .09), transparent 62%),
    linear-gradient(rgba(42, 53, 86, .26) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 53, 86, .26) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  background-attachment: fixed, fixed, scroll, scroll;
}

h1, h2, h3, h4 {
  font-family: var(--ff-serif);
  font-weight: 600;
  line-height: 1.28;
  color: var(--c-ink);
  letter-spacing: .01em;
}

h1 { font-size: clamp(34px, 5.2vw, 56px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: clamp(18px, 2vw, 24px); }
h4 { font-size: 18px; }

p { text-wrap: pretty; }

a { color: inherit; }

::selection {
  background: var(--c-mint);
  color: #04141F;
}

:focus-visible {
  outline: 2px solid var(--c-mint);
  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;
}

/* ---------- 布局容器 ---------- */
.frame,
.container {
  width: 100%;
  max-width: var(--frame);
  margin-inline: auto;
  padding-inline: var(--gut);
}

main { display: block; }

.section { padding-block: clamp(34px, 5vw, 68px); }
.section--tight { padding-block: clamp(22px, 3vw, 40px); }

/* =========================================================
   头部
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--c-base);
  border-bottom: 1px solid var(--c-hair);
  box-shadow: 0 10px 34px rgba(0, 0, 0, .34);
}

.site-header::after {
  content: "";
  display: block;
  height: 3px;
  background-image: repeating-linear-gradient(90deg, var(--c-mint) 0 1px, transparent 1px 18px);
  opacity: .26;
}

.skip-link {
  position: absolute;
  left: var(--gut);
  top: -120px;
  z-index: 90;
  padding: 10px 18px;
  background: var(--c-mint);
  color: #04141F;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--r);
  transition: top .2s ease;
}

.skip-link:focus {
  top: 10px;
}

/* ---------- 上层：品牌轨道 ---------- */
.rail { background: var(--c-base); }

.rail__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.2vw, 30px);
  min-height: 62px;
  padding-block: 10px;
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--c-ink);
}

.rail__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid var(--c-mint);
  border-radius: 2px;
  color: var(--c-mint);
  font-family: var(--ff-mono);
  font-size: 13px;
  letter-spacing: .04em;
  box-shadow: inset 0 0 14px rgba(46, 230, 168, .14), 0 0 12px rgba(46, 230, 168, .12);
}

.rail__word { display: block; min-width: 0; }

.rail__name {
  display: block;
  font-family: var(--ff-cond);
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: .08em;
  white-space: nowrap;
}

.rail__sub {
  display: block;
  margin-top: 2px;
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: .18em;
  color: var(--c-mute);
  white-space: nowrap;
}

.rail__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: clamp(6px, 1.6vw, 22px);
  font-family: var(--ff-cond);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-mute);
  white-space: nowrap;
}

.pulse {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--c-mint);
  animation: pulseMint 2.2s ease-out infinite;
}

@keyframes pulseMint {
  0%   { box-shadow: 0 0 0 0 rgba(46, 230, 168, .55); }
  70%  { box-shadow: 0 0 0 9px rgba(46, 230, 168, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 230, 168, 0); }
}

.rail__utility {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.util-link {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--c-hair);
  border-radius: 2px;
  color: var(--c-ink);
  font-size: 13px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}

.util-link:hover {
  color: var(--c-mint);
  border-color: var(--c-mint);
  background: rgba(46, 230, 168, .07);
}

.util-link--accent {
  background: var(--c-mint);
  border-color: var(--c-mint);
  color: #04141F;
  font-weight: 700;
}

.util-link--accent:hover {
  background: #57F0BD;
  border-color: #57F0BD;
  color: #04141F;
}

/* ---------- 下层：栏目轨道 ---------- */
.nav-tier {
  position: relative;
  background: var(--c-panel);
  border-top: 1px solid var(--c-hair);
}

.nav-tier__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 54px;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: transparent;
  border: 1px solid var(--c-hair);
  border-radius: 2px;
  color: var(--c-ink);
  font-size: 13px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: border-color .18s ease, color .18s ease;
}

.nav-toggle:hover { border-color: var(--c-mint); color: var(--c-mint); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  transition: transform .2s ease;
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

.site-nav { margin: 0; }

.nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 16px 15px;
  color: var(--c-mute);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color .18s ease, background .18s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 0;
  height: 2px;
  background: transparent;
  transition: background .18s ease, box-shadow .18s ease;
}

.nav-link:hover {
  color: var(--c-ink);
  background: rgba(46, 230, 168, .06);
}

.nav-link[aria-current="page"] { color: var(--c-ink); }

.nav-link[aria-current="page"]::after {
  background: var(--c-mint);
  box-shadow: 0 0 10px rgba(46, 230, 168, .7);
}

.nav-link__idx {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--c-dim);
  transition: color .18s ease;
}

.nav-link[aria-current="page"] .nav-link__idx { color: var(--c-mint); }

@keyframes navIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer {
  margin-top: clamp(56px, 9vw, 110px);
  background: var(--c-base-deep);
  border-top: 1px solid var(--c-hair);
}

.site-footer::before {
  content: "";
  display: block;
  height: 5px;
  background-image: repeating-linear-gradient(90deg, var(--c-mint) 0 1px, transparent 1px 16px);
  opacity: .3;
}

.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 3.6vw, 54px);
  padding-block: clamp(30px, 5vw, 60px);
}

.foot-brand { min-width: 0; }

.foot-brand__mark {
  display: inline-block;
  font-family: var(--ff-cond);
  font-size: 22px;
  letter-spacing: .1em;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.foot-brand__mark:hover {
  color: var(--c-mint);
  border-bottom-color: var(--c-mint);
}

.foot-brand__line {
  margin-top: 14px;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mute);
}

.foot-contact {
  margin-top: 18px;
  font-family: var(--ff-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--c-dim);
  word-break: break-word;
}

.foot-col { min-width: 0; }

.foot-col__title {
  margin-bottom: 16px;
  font-family: var(--ff-cond);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-mint);
}

.foot-links {
  display: grid;
  gap: 11px;
}

.foot-links a {
  display: inline-block;
  color: var(--c-mute);
  font-size: 14px;
  text-decoration: none;
  transition: color .16s ease, transform .16s ease;
}

.foot-links a:hover {
  color: var(--c-ink);
  transform: translateX(3px);
}

.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  padding-block: 18px;
  border-top: 1px solid var(--c-hair);
  font-size: 13px;
  color: var(--c-dim);
}

.foot-legal { font-family: var(--ff-mono); letter-spacing: .03em; }

.foot-copy {
  font-family: var(--ff-cond);
  letter-spacing: .12em;
  color: var(--c-mute);
}

/* =========================================================
   通用组件
   ========================================================= */

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--ff-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s ease, background .18s ease, color .18s ease,
              border-color .18s ease, box-shadow .18s ease;
}

.btn--mint {
  background: var(--c-mint);
  color: #04141F;
  box-shadow: 0 10px 26px rgba(46, 230, 168, .18);
}

.btn--mint:hover {
  background: #57F0BD;
  transform: translateY(-2px);
}

.btn--line {
  background: rgba(17, 26, 58, .6);
  border-color: var(--c-hair);
  color: var(--c-ink);
}

.btn--line:hover {
  border-color: var(--c-mint);
  color: var(--c-mint);
  transform: translateY(-2px);
}

.btn--orange {
  background: var(--c-orange);
  color: #1A0C02;
  box-shadow: 0 10px 26px rgba(255, 138, 61, .2);
}

.btn--orange:hover {
  background: #FFA063;
  transform: translateY(-2px);
}

/* ---------- 面包屑 ---------- */
.crumbs { padding-block: 20px; }

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--c-dim);
}

.crumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.crumbs li + li::before {
  content: "/";
  color: var(--c-hair);
}

.crumbs a {
  color: var(--c-mute);
  text-decoration: none;
}

.crumbs a:hover { color: var(--c-mint); }

.crumbs [aria-current="page"] { color: var(--c-ink); }

/* ---------- 正文排版 ---------- */
.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--c-body);
}

.prose p + p { margin-top: 1.05em; }

.prose h2 { margin-top: 1.9em; margin-bottom: .55em; }
.prose h3 { margin-top: 1.5em; margin-bottom: .45em; }

.prose a {
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 168, .4);
}

.prose a:hover { border-bottom-color: var(--c-mint); }

.prose ul,
.prose ol {
  margin: 1em 0;
  padding-left: 1.4em;
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .4em; }

.prose strong { color: var(--c-ink); }

.prose blockquote {
  margin: 1.4em 0;
  padding: 14px 20px;
  border-left: 2px solid var(--c-mint);
  background: rgba(46, 230, 168, .05);
  color: var(--c-mute);
}

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.7;
  color: var(--c-mute);
}

.meta {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-dim);
}

/* ---------- 栅格 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(196px, 1fr)); }

/* ---------- 面板 ---------- */
.panel {
  position: relative;
  padding: clamp(16px, 2.2vw, 26px);
  background: linear-gradient(180deg, rgba(17, 26, 58, .96), rgba(13, 21, 48, .96));
  border: 1px solid var(--c-hair);
  border-radius: var(--r);
  box-shadow: var(--shadow-card);
}

.panel--flush {
  padding: 0;
  overflow: hidden;
}

/* ---------- 框景容器 ---------- */
.frame-box {
  position: relative;
  padding: clamp(20px, 3.4vw, 46px);
  border: 1px solid var(--c-hair);
  border-radius: var(--r);
  background: rgba(10, 17, 40, .55);
}

.frame-box::before,
.frame-box::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--c-mint);
}

.frame-box::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.frame-box::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

/* ---------- 小标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--ff-cond);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--c-mint);
}

.eyebrow::before {
  content: "";
  display: block;
  width: 26px;
  height: 1px;
  background: var(--c-mint);
}

/* ---------- 数据数字 ---------- */
.data {
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--c-ink);
  text-shadow: 0 0 8px rgba(46, 230, 168, .55), 0 0 22px rgba(46, 230, 168, .22);
}

.data--lg {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  font-weight: 700;
}

.data--xl {
  font-size: clamp(52px, 7.5vw, 96px);
  line-height: 1;
  font-weight: 700;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--c-hair);
  border-radius: 2px;
  font-family: var(--ff-cond);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-mute);
  white-space: nowrap;
}

.tag--live {
  border-color: rgba(255, 138, 61, .55);
  background: rgba(255, 138, 61, .1);
  color: var(--c-orange);
}

.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-orange);
  animation: pulseOrange 1.8s ease-out infinite;
}

@keyframes pulseOrange {
  0%   { box-shadow: 0 0 0 0 rgba(255, 138, 61, .6); }
  70%  { box-shadow: 0 0 0 8px rgba(255, 138, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 138, 61, 0); }
}

/* ---------- 联赛标识 ---------- */
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--c-mute);
}

.dot--epl { background: var(--lg-epl); }
.dot--laliga { background: var(--lg-laliga); }
.dot--seriea { background: var(--lg-seriea); }
.dot--bundesliga { background: var(--lg-bundesliga); }
.dot--ligue1 { background: var(--lg-ligue1); }
.dot--csl { background: var(--lg-csl); }

.lg-line { border-left: 2px solid var(--c-hair); }
.lg-line--epl { border-left-color: var(--lg-epl); }
.lg-line--laliga { border-left-color: var(--lg-laliga); }
.lg-line--seriea { border-left-color: var(--lg-seriea); }
.lg-line--bundesliga { border-left-color: var(--lg-bundesliga); }
.lg-line--ligue1 { border-left-color: var(--lg-ligue1); }
.lg-line--csl { border-left-color: var(--lg-csl); }

/* ---------- 图片容器（页面阶段放图片用） ---------- */
.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-hair);
  border-radius: var(--r);
  background-color: var(--c-panel);
  background-image:
    radial-gradient(120% 120% at 12% 0%, rgba(46, 230, 168, .12), transparent 55%),
    radial-gradient(100% 120% at 100% 100%, rgba(154, 123, 224, .14), transparent 60%),
    repeating-linear-gradient(0deg, rgba(42, 53, 86, .5) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(42, 53, 86, .5) 0 1px, transparent 1px 34px);
}

.figure__media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.figure--wide .figure__media { aspect-ratio: 21 / 9; }
.figure--tall .figure__media { aspect-ratio: 4 / 5; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }

.figure__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--c-hair);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-mute);
}

/* ---------- 标签页 / 分段控件 ---------- */
.tabs { display: block; }

.tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
  border-bottom: 1px solid var(--c-hair);
}

.tab {
  appearance: none;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--c-hair);
  border-bottom: none;
  border-radius: 2px 2px 0 0;
  color: var(--c-mute);
  font-size: 14px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.tab:hover {
  color: var(--c-ink);
  background: rgba(46, 230, 168, .06);
}

.tab[aria-selected="true"] {
  color: var(--c-ink);
  border-color: var(--c-mint);
  background: rgba(46, 230, 168, .1);
}

.tabpanel { outline: none; }
.tabpanel[hidden] { display: none; }

/* ---------- 显现动效 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .5s ease, transform .5s ease;
}

html.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1024px) {
  .foot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .foot-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .rail__sub,
  .rail__status {
    display: none;
  }

  .rail__inner { min-height: 56px; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    display: none;
    padding: 6px var(--gut) 14px;
    background: var(--c-panel);
    border-top: 1px solid var(--c-hair);
    border-bottom: 1px solid var(--c-hair);
    box-shadow: 0 24px 48px var(--c-shadow);
  }

  .site-nav[data-open] {
    display: block;
    animation: navIn .22s ease-out;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    width: 100%;
    justify-content: flex-start;
    gap: 12px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(42, 53, 86, .55);
  }

  .nav-link:last-child { border-bottom: none; }

  .nav-link::after {
    left: 0;
    right: auto;
    top: 10px;
    bottom: 10px;
    width: 2px;
    height: auto;
  }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .util-link {
    padding: 7px 10px;
    font-size: 12px;
    letter-spacing: .02em;
  }

  .rail__name { font-size: 17px; }

  .foot-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .foot-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* =========================================================
   可访问性：减少动效
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}