/* =========================================================
   体育地址看台 · 共享样式 /assets/site.css
   顺序：变量 → 基础 → 排版 → 布局 → 组件 → 头部 → 页脚 → 响应式
   ========================================================= */

/* ---------- 1 · 设计变量 ---------- */
:root{
  --pitch-900:#06170F;
  --pitch-800:#0C2418;
  --pitch-700:#123326;
  --line:#1E4436;
  --cyan:#3BF0C4;
  --cyan-soft:#A6F7E0;
  --warm:#F5F2E8;
  --amber:#F0B23C;
  --paper:#EFF5F0;
  --graphite:#22322A;

  --text:var(--warm);
  --text-dim:rgba(245,242,232,.70);
  --text-mute:rgba(245,242,232,.46);

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --font-body:var(--font-sans);

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --gap:clamp(14px,1.8vw,22px);
  --section-y:clamp(56px,7vw,110px);
  --sharp:2px;
  --capsule:999px;
  --dur:240ms;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2 · 基础重置 ---------- */
*,*::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,ol,ul{margin:0}
ol,ul{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
strong{font-weight:600;color:var(--warm)}
hr{border:0;border-top:1px solid var(--line);margin:0}

body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--pitch-900);
  background-image:
    linear-gradient(to right,rgba(30,68,54,.22) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(30,68,54,.22) 1px,transparent 1px);
  background-size:96px 96px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--cyan);color:var(--pitch-900)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
#main-content{scroll-margin-top:104px}

.skip-link{
  position:absolute;left:12px;top:-64px;z-index:200;
  padding:10px 18px;
  background:var(--cyan);color:var(--pitch-900);
  font-size:14px;font-weight:600;letter-spacing:.04em;
  border-radius:var(--sharp);
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- 3 · 排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan)}
.display{
  font-family:var(--font-display);font-weight:700;
  line-height:1.16;letter-spacing:-.01em;color:var(--warm);
}
.display--xl{font-size:clamp(34px,6vw,72px)}
.display--lg{font-size:clamp(28px,4.4vw,48px)}
.heading{
  font-family:var(--font-sans);font-weight:600;
  font-size:clamp(18px,2vw,22px);line-height:1.45;color:var(--warm);
}
.lede{
  font-size:clamp(16px,1.5vw,18px);line-height:1.85;
  color:var(--text-dim);max-width:62ch;
}
.muted{color:var(--text-mute)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- 4 · 布局 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section-y)}
.section--tight{padding-block:clamp(32px,4.4vw,60px)}
.section--paper{background:var(--paper);color:var(--graphite)}
.section--paper .heading,.section--paper .display{color:var(--graphite)}
.section--paper .lede,.section--paper .muted{color:rgba(34,50,42,.72)}
.section--paper .eyebrow{color:#0B6B52}
.section--paper .eyebrow::before{background:#0B6B52}

.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:clamp(24px,3vw,44px);
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.section--paper .section__head{border-bottom-color:rgba(34,50,42,.18)}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.col-1{grid-column:span 1}
.col-2{grid-column:span 2}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-11{grid-column:span 11}
.col-12{grid-column:span 12}

/* ---------- 5 · 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:1px solid var(--line);border-radius:var(--sharp);
  font-family:var(--font-sans);font-size:14px;font-weight:600;letter-spacing:.04em;
  color:var(--warm);background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn:hover,.btn:focus-visible{border-color:var(--cyan);color:var(--warm);background:rgba(59,240,196,.10)}
.btn--solid{background:var(--cyan);border-color:var(--cyan);color:var(--pitch-900)}
.btn--solid:hover,.btn--solid:focus-visible{background:var(--cyan-soft);border-color:var(--cyan-soft);color:var(--pitch-900)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text-dim)}
.btn--ghost:hover,.btn--ghost:focus-visible{color:var(--warm);border-color:var(--cyan)}
.btn--sm{padding:8px 15px;font-size:13px;letter-spacing:.05em}

.panel{
  position:relative;
  background:var(--pitch-800);
  border:1px solid var(--line);border-radius:var(--sharp);
  padding:clamp(18px,2.2vw,28px);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.panel:hover{border-color:rgba(59,240,196,.5);background:var(--pitch-700)}
.panel--focus{
  background:
    linear-gradient(150deg,rgba(59,240,196,.16),rgba(12,36,24,.92) 58%),
    var(--pitch-800);
  border-color:rgba(59,240,196,.42);
}
.panel--paper{background:var(--paper);border-color:rgba(34,50,42,.16);color:var(--graphite)}
.panel--paper:hover{background:#E6EFE9;border-color:rgba(11,107,82,.45)}
.panel__label{
  display:block;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.18em;color:var(--text-mute);margin-bottom:12px;
}
.panel--paper .panel__label{color:rgba(34,50,42,.55)}
.panel__title{
  font-family:var(--font-sans);font-weight:600;font-size:18px;
  line-height:1.5;color:var(--warm);margin-bottom:10px;
}
.panel--paper .panel__title{color:var(--graphite)}
.panel__meta{
  display:block;margin-top:16px;padding-top:12px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--text-mute);
}
.panel--paper .panel__meta{border-top-color:rgba(34,50,42,.16);color:rgba(34,50,42,.55)}

.data-row{
  display:grid;grid-template-columns:1fr auto;gap:14px;align-items:baseline;
  padding:10px 0;border-bottom:1px solid var(--line);
}
.data-row:last-child{border-bottom:0}
.data-row__label{font-size:14px;color:var(--text-mute);letter-spacing:.02em}
.data-row__value{
  font-family:var(--font-mono);font-size:18px;font-weight:600;
  text-align:right;font-variant-numeric:tabular-nums;color:var(--warm);
}
.data-row__value--accent{color:var(--cyan)}
.data-row__value--flag{color:var(--amber)}
.panel--paper .data-row{border-bottom-color:rgba(34,50,42,.14)}
.panel--paper .data-row__label{color:rgba(34,50,42,.6)}
.panel--paper .data-row__value{color:var(--graphite)}
.panel--paper .data-row__value--accent{color:#0B6B52}

.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  border:1px solid var(--line);border-radius:var(--capsule);
  font-size:13px;color:var(--text-dim);background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tag:hover{border-color:var(--cyan);color:var(--warm)}
.tag[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--pitch-900);font-weight:600}

.timeline{position:relative;padding-left:32px;border-left:1px solid var(--line)}
.timeline__item{position:relative;padding-bottom:clamp(28px,3.4vw,48px)}
.timeline__item:last-child{padding-bottom:0}
.timeline__item::before{
  content:"";position:absolute;left:-36px;top:9px;
  width:9px;height:9px;background:var(--pitch-900);
  border:1px solid var(--cyan);transform:rotate(45deg);
}
.timeline__index{
  display:block;font-family:var(--font-mono);font-weight:700;
  font-size:clamp(22px,3vw,30px);line-height:1;color:var(--cyan);margin-bottom:10px;
}
.timeline__body{color:var(--text-dim);max-width:64ch}
.timeline__meta{
  display:block;margin-top:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--text-mute);
}

.disclosure{
  background:var(--pitch-800);border:1px solid var(--line);
  border-radius:var(--sharp);margin-bottom:10px;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.disclosure:hover{border-color:rgba(59,240,196,.4)}
.disclosure[data-open]{background:var(--pitch-700);border-color:rgba(59,240,196,.55)}
.disclosure__trigger{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;text-align:left;
  font-family:var(--font-sans);font-size:16px;font-weight:600;
  color:var(--warm);line-height:1.6;
  transition:color var(--dur) var(--ease);
}
.disclosure__trigger:hover{color:var(--cyan-soft)}
.disclosure__icon{position:relative;flex:none;width:14px;height:14px}
.disclosure__icon::before,.disclosure__icon::after{
  content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--cyan);
}
.disclosure__icon::after{transform:rotate(90deg);transition:transform var(--dur) var(--ease)}
.disclosure[data-open] .disclosure__icon::after{transform:rotate(0)}
.disclosure__panel{height:0;overflow:hidden;transition:height 260ms var(--ease)}
.disclosure__inner{
  padding:0 20px 20px;color:var(--text-dim);
  font-size:15px;line-height:1.9;max-width:74ch;
}
html:not(.js-ready) .disclosure__panel{height:auto}

.media-frame{
  position:relative;overflow:hidden;
  background:var(--pitch-700);
  border:1px solid var(--line);border-radius:var(--sharp);
}
.media-frame::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(30,68,54,.6) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(30,68,54,.6) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame__img{
  position:relative;z-index:1;
  width:100%;height:100%;object-fit:cover;display:block;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--cut{clip-path:polygon(0 0,100% 0,100% 78%,70% 100%,0 100%)}
.media-frame__caption{
  position:relative;z-index:1;
  padding:10px 14px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--text-mute);
}

.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--text-mute);
}
.breadcrumbs a{color:var(--text-dim);border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.breadcrumbs a:hover,.breadcrumbs a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumbs__sep{color:var(--line)}
.breadcrumbs [aria-current="page"]{color:var(--cyan)}

.prose{font-size:17px;line-height:1.9;color:var(--text-dim);max-width:74ch}
.prose > * + *{margin-top:1.1em}
.prose h2{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(22px,2.4vw,30px);line-height:1.4;color:var(--warm);
  margin-top:1.6em;
}
.prose h3{font-family:var(--font-sans);font-weight:600;font-size:18px;color:var(--warm);margin-top:1.4em}
.prose a{color:var(--cyan-soft);border-bottom:1px solid rgba(59,240,196,.42)}
.prose a:hover,.prose a:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}
.prose ul,.prose ol{padding-left:1.2em}
.prose li{list-style:disc;margin-top:.4em}
.prose blockquote{
  border-left:1px solid var(--cyan);padding-left:18px;
  font-family:var(--font-display);font-size:19px;color:var(--warm);
}
.section--paper .prose{color:var(--graphite)}
.section--paper .prose h2,.section--paper .prose h3{color:var(--graphite)}
.section--paper .prose a{color:#0B6B52;border-bottom-color:rgba(11,107,82,.4)}

html.js-ready .reveal{opacity:0;transform:translateY(12px)}
.reveal{transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
.reveal--1{transition-delay:80ms}
.reveal--2{transition-delay:160ms}
.reveal--3{transition-delay:240ms}
html.js-ready .reveal.is-inview{opacity:1;transform:none}

/* ---------- 6 · 页头：三枚悬浮胶囊浮岛 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding-top:14px;
  transition:padding-top var(--dur) var(--ease);
}
.site-header::before{
  content:"";position:absolute;inset:0 0 -20px;z-index:-1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(6,23,15,.94),rgba(6,23,15,0));
}
.scroll-progress{
  position:absolute;left:0;right:0;top:0;height:2px;
  background:rgba(30,68,54,.45);
}
.scroll-progress__bar{
  display:block;height:100%;width:0;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(59,240,196,.55);
}
.header-shell{
  display:grid;
  grid-template-columns:auto 1fr auto;
  grid-template-areas:"brand nav aside";
  align-items:center;
  gap:clamp(10px,1.6vw,20px);
  max-width:var(--shell);margin-inline:auto;
  padding-inline:var(--gutter);
}

.brand{
  grid-area:brand;
  display:flex;flex-direction:column;justify-content:center;
  padding:8px 18px;
  background:rgba(12,36,24,.82);
  border:1px solid var(--line);border-radius:var(--capsule);
  backdrop-filter:blur(14px);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.brand:hover,.brand:focus-visible{border-color:var(--cyan)}
.brand__mark{
  font-family:var(--font-sans);font-weight:700;font-size:17px;
  letter-spacing:.06em;line-height:1.3;color:var(--warm);white-space:nowrap;
}
.brand__sub{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  line-height:1.5;color:var(--text-mute);white-space:nowrap;
}

.nav-capsule{
  grid-area:nav;justify-self:center;
  display:flex;align-items:center;
  padding:6px;
  background:rgba(12,36,24,.82);
  border:1px solid var(--line);border-radius:var(--capsule);
  backdrop-filter:blur(14px);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-capsule__list{display:flex;align-items:center;gap:2px}
.nav-capsule__link{
  display:inline-block;
  padding:8px 14px;border-radius:var(--capsule);
  border:1px solid transparent;
  font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:.02em;
  color:var(--text-dim);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-capsule__link:hover,.nav-capsule__link:focus-visible{
  color:var(--warm);border-color:var(--cyan);background:rgba(59,240,196,.08);
}
.nav-capsule__link[aria-current="page"]{
  background:var(--cyan);border-color:var(--cyan);
  color:var(--pitch-900);font-weight:600;
}
.nav-capsule__action{display:none}

.header-aside{
  grid-area:aside;justify-self:end;
  display:flex;align-items:center;gap:10px;
  padding:6px 6px 6px 14px;
  background:rgba(12,36,24,.82);
  border:1px solid var(--line);border-radius:var(--capsule);
  backdrop-filter:blur(14px);
}
.round-chip{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:5px 10px;
  border:1px solid var(--line);border-radius:var(--sharp);
  background:linear-gradient(140deg,rgba(59,240,196,.16),rgba(6,23,15,0) 62%);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.round-chip:hover,.round-chip:focus-visible{border-color:var(--cyan)}
.round-chip__label{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--text-mute)}
.round-chip__value{
  font-family:var(--font-mono);font-weight:700;font-size:20px;line-height:1;color:var(--cyan);
}

.nav-toggle{
  grid-area:toggle;justify-self:end;
  display:none;align-items:center;gap:9px;
  padding:9px 15px;
  background:rgba(12,36,24,.86);
  border:1px solid var(--line);border-radius:var(--capsule);
  backdrop-filter:blur(14px);
  transition:border-color var(--dur) var(--ease);
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:9px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:var(--cyan);
  transition:transform var(--dur) var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}
.nav-toggle__text{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--text-dim)}

.site-header.is-condensed{padding-top:8px}
.site-header.is-condensed .brand{padding:6px 16px}
.site-header.is-condensed .nav-capsule,
.site-header.is-condensed .header-aside{background:rgba(6,23,15,.74)}

/* ---------- 7 · 页脚 ---------- */
.site-footer{
  margin-top:var(--section-y);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,36,24,.92),var(--pitch-900) 62%);
}
.footer-shell{
  display:grid;
  grid-template-columns:1.3fr 2fr 1.2fr;
  gap:clamp(24px,3.4vw,52px);
  max-width:var(--shell);margin-inline:auto;
  padding:clamp(40px,6vw,76px) var(--gutter) clamp(28px,4vw,48px);
}
.footer-brand{
  font-family:var(--font-sans);font-weight:700;font-size:20px;letter-spacing:.06em;
  color:var(--warm);margin-bottom:12px;
}
.footer-note{font-size:14px;line-height:1.85;color:var(--text-dim);max-width:34ch}
.footer-round{
  display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;
  margin:18px 0 20px;padding-top:14px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--text-mute);
}
.footer-round__value{
  font-size:22px;font-weight:700;line-height:1;color:var(--cyan);
}
.footer-map{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.footer-col__title{
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;color:var(--cyan);margin-bottom:14px;
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__link{
  display:inline-block;font-size:14px;color:var(--text-dim);
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer-col__link:hover,.footer-col__link:focus-visible{color:var(--cyan);border-bottom-color:var(--cyan)}
.footer-contact__line{
  font-family:var(--font-mono);font-size:13px;line-height:1.9;color:var(--text-dim);
  word-break:break-word;
}
.footer-contact__note{margin-top:12px;font-size:13px;line-height:1.8;color:var(--text-mute);max-width:34ch}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;
  max-width:var(--shell);margin-inline:auto;
  padding:18px var(--gutter);
}
.footer-bottom__legal{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--text-mute);
}
.footer-bottom__meta{font-size:12px;letter-spacing:.04em;color:var(--text-mute)}

/* ---------- 8 · 响应式 ---------- */
@media (max-width:1199px){
  .round-chip{display:none}
  .header-aside{padding:6px}
}
@media (max-width:1023px){
  .header-shell{
    grid-template-columns:1fr auto;
    grid-template-areas:"brand toggle" "nav nav";
    row-gap:10px;
  }
  .nav-toggle{display:inline-flex}
  .header-aside{display:none}
  .brand__sub{display:none}
  .nav-capsule{
    justify-self:stretch;
    display:block;
    padding:0;
    max-height:0;overflow:hidden;
    opacity:0;visibility:hidden;
    background:rgba(12,36,24,.97);
    border-color:var(--line);
    border-radius:var(--sharp);
    transition:max-height 320ms var(--ease),opacity 200ms var(--ease),padding 320ms var(--ease),visibility 0s linear 320ms;
  }
  .nav-capsule[data-open]{
    max-height:min(74vh,580px);overflow-y:auto;
    padding:10px;
    opacity:1;visibility:visible;
    transition:max-height 320ms var(--ease),opacity 200ms var(--ease),padding 320ms var(--ease),visibility 0s;
  }
  .nav-capsule__list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-capsule__link{display:block;padding:13px 14px;border-radius:var(--sharp);font-size:15px}
  .nav-capsule__action{
    display:block;margin-top:8px;padding-top:10px;
    border-top:1px solid var(--line);
  }
  .nav-capsule__action .btn{width:100%}
  .footer-shell{grid-template-columns:1fr 1fr}
  .footer-lead{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:640px){
  body{background-size:64px 64px}
  .grid-12{grid-template-columns:minmax(0,1fr)}
  .grid-12 > *{grid-column:1 / -1}
  .footer-map{grid-template-columns:1fr 1fr}
  .footer-shell{padding-top:36px}
  .timeline{padding-left:22px}
  .timeline__item::before{left:-27px;width:8px;height:8px}
  .data-row{grid-template-columns:1fr;gap:4px}
  .data-row__value{text-align:left}
  .section__head{align-items:flex-start}
}

/* ---------- 9 · 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  html.js-ready .reveal{opacity:1;transform:none}
  .scroll-progress__bar{box-shadow:none}
}