/* ============================================================
   网页体育 · /assets/site.css
   蓝图网格 / 分屏赛场系统 · 共享层
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-height:100vh}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit}
table{border-collapse:collapse;width:100%}
input,select,textarea{font:inherit}

/* ---------- 2. tokens ---------- */
:root{
  --ink-950:#05070F;
  --ink-900:#0B1226;
  --ink-800:#121C3B;
  --line:#24345F;
  --line-soft:rgba(36,52,95,.6);
  --cyan:#2FE0C8;
  --orange:#FF6A2B;
  --violet:#9A6BFF;
  --paper:#F2F7FF;
  --fog:#8FA1C7;
  --yellow:#FFC94D;
  --font-sans:"Noto Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shell:1280px;
  --gutter:clamp(16px,3.4vw,48px);
  --r-sm:3px;
  --r-md:8px;
  --r-lg:14px;
  --dur:200ms;
  --ease:cubic-bezier(.2,.72,.3,1);
}

/* ---------- 3. base ---------- */
body{
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink-950);
  background-image:
    radial-gradient(120% 80% at 8% -12%,rgba(47,224,200,.10),transparent 58%),
    radial-gradient(90% 70% at 102% 2%,rgba(255,106,43,.09),transparent 55%),
    repeating-linear-gradient(118deg,rgba(47,224,200,.05) 0 1px,transparent 1px 104px),
    repeating-linear-gradient(28deg,rgba(36,52,95,.42) 0 1px,transparent 1px 104px);
}
@media (min-width:900px){
  body{background-attachment:fixed,fixed,fixed,fixed}
}
@media (max-width:720px){
  body{font-size:16px;line-height:1.72}
}
h1,h2,h3,h4{font-weight:800;line-height:1.16;letter-spacing:-.01em;color:var(--paper)}
strong{font-weight:700;color:var(--paper)}
::selection{background:rgba(47,224,200,.28);color:var(--paper)}

:focus-visible{
  outline:2px solid var(--violet);
  outline-offset:2px;
  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;
}

.skip-link{
  position:absolute;left:var(--gutter);top:-120px;z-index:200;
  padding:11px 20px;background:var(--cyan);color:#04201c;
  font-weight:700;font-size:15px;text-decoration:none;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 4. 排版 ---------- */
.h1{font-size:clamp(2.1rem,5.4vw,3.6rem);font-weight:900;line-height:1.1;letter-spacing:-.02em}
.h2{font-size:clamp(1.5rem,3vw,2.15rem)}
.h3{font-size:clamp(1.15rem,2vw,1.4rem)}
.lead{font-size:clamp(1.02rem,1.5vw,1.15rem);color:#cfdcf4;max-width:40em}
.meta{font-size:14px;color:var(--fog)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:700;color:var(--cyan);letter-spacing:-.01em;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;flex:none}
.index-num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--yellow);text-transform:uppercase;
}

/* ---------- 5. 容器与分区 ---------- */
.shell{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
}
.shell--narrow{width:min(100% - (var(--gutter) * 2),820px);margin-inline:auto}
.section{padding-block:clamp(46px,7vw,92px)}
.section--tight{padding-block:clamp(28px,4vw,52px)}
.section-head{display:grid;gap:14px;margin-bottom:clamp(22px,3vw,38px)}

/* ---------- 6. 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
@media (min-width:901px){
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-5{grid-column:span 5}
  .span-6{grid-column:span 6}
  .span-7{grid-column:span 7}
  .span-8{grid-column:span 8}
}
@media (max-width:900px){
  .grid--3,.grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8{grid-column:span 2}
}
@media (max-width:640px){
  .grid--2,.grid--3,.grid--12{grid-template-columns:minmax(0,1fr)}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8{grid-column:span 1}
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;font-weight:700;letter-spacing:.02em;line-height:1.2;
  text-decoration:none;white-space:nowrap;
  transition:transform var(--dur) var(--ease),border-color var(--dur),color var(--dur),background-color var(--dur),box-shadow var(--dur);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{
  background:var(--cyan);color:#04201c;border-color:var(--cyan);
  box-shadow:0 10px 26px -16px rgba(47,224,200,.9);
}
.btn--primary:hover{background:#54ebd6;border-color:#54ebd6}
.btn--ghost{background:rgba(18,28,59,.55);color:var(--paper)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--accent{
  background:var(--orange);color:#2b0d00;border-color:var(--orange);
  box-shadow:0 10px 26px -16px rgba(255,106,43,.9);
}
.btn--accent:hover{background:#ff8348;border-color:#ff8348}
.btn--block{display:flex;width:100%;margin-top:12px}

.copy-btn{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fog);
  border:1px solid var(--line);border-radius:2px;padding:4px 9px;
  transition:color var(--dur),border-color var(--dur),background-color var(--dur);
}
.copy-btn:hover{color:var(--cyan);border-color:rgba(47,224,200,.55);background:rgba(47,224,200,.08)}

/* ---------- 8. 徽章 / 标签 / 悬浮徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  padding:4px 9px;border:1px solid var(--line);border-radius:2px;
  color:var(--fog);background:rgba(18,28,59,.8);
}
.badge--cyan{color:var(--cyan);border-color:rgba(47,224,200,.5);background:rgba(47,224,200,.08)}
.badge--orange{color:var(--orange);border-color:rgba(255,106,43,.5);background:rgba(255,106,43,.08)}
.badge--violet{color:var(--violet);border-color:rgba(154,107,255,.5);background:rgba(154,107,255,.08)}
.badge--yellow{color:var(--yellow);border-color:rgba(255,201,77,.45);background:rgba(255,201,77,.08)}

.float-badge{
  position:relative;display:inline-flex;flex-direction:column;gap:4px;
  padding:14px 18px;border:1px solid var(--yellow);border-radius:3px;
  background:linear-gradient(180deg,#18244c,#0B1226);
  box-shadow:0 18px 36px -24px rgba(0,0,0,.95);
  text-decoration:none;
  transition:transform var(--dur) var(--ease),border-color var(--dur),box-shadow var(--dur);
}
.float-badge::after{
  content:"";position:absolute;inset:4px;border:1px dashed rgba(255,201,77,.3);
  border-radius:2px;pointer-events:none;
}
.float-badge:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:0 22px 42px -24px rgba(47,224,200,.6)}

/* ---------- 9. 卡片 / 面板 / 数据 ---------- */
.card{
  position:relative;
  padding:clamp(16px,2.4vw,26px);
  background:linear-gradient(180deg,rgba(18,28,59,.92),rgba(11,18,38,.94));
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform var(--dur) var(--ease),border-color var(--dur),box-shadow var(--dur);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(47,224,200,.55);
  box-shadow:0 20px 42px -30px rgba(47,224,200,.55);
}
.card--accent{border-left:3px solid var(--orange)}
.panel{
  position:relative;
  padding:clamp(16px,2.4vw,28px);
  background:var(--ink-800);
  border:1px solid var(--line);border-radius:var(--r-md);
}
.panel__index{
  display:inline-block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--yellow);
}
.stat{display:flex;flex-direction:column;gap:2px}
.stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(1.55rem,3vw,2.35rem);font-weight:700;
  color:var(--cyan);letter-spacing:-.02em;line-height:1.1;
}
.stat__label{font-size:13px;color:var(--fog);letter-spacing:.04em}
.stat--warn .stat__value{color:var(--orange)}

/* ---------- 10. 图形容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-md);
  background-color:rgba(11,18,38,.85);
  background-image:
    repeating-linear-gradient(90deg,rgba(36,52,95,.5) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(0deg,rgba(36,52,95,.5) 0 1px,transparent 1px 40px);
}
.media-frame>img{width:100%;height:100%;object-fit:cover;display:block}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px 12px;font-size:13px;color:var(--fog);
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.92));
}
.blueprint-surface{
  position:relative;
  border:1px solid var(--line);border-radius:var(--r-md);
  background-color:rgba(11,18,38,.72);
  background-image:
    repeating-linear-gradient(90deg,rgba(36,52,95,.5) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(0deg,rgba(36,52,95,.5) 0 1px,transparent 1px 64px);
}

/* ---------- 11. 表格 ---------- */
.data-table__wrap{
  overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(11,18,38,.7);
}
.data-table{min-width:520px;font-size:14px}
.data-table th,.data-table td{
  padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft);
}
.data-table th{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--fog);background:rgba(18,28,59,.9);
  white-space:nowrap;
}
.data-table td{color:#d6e0f5}
.data-table tr:last-child td{border-bottom:0}
.data-table td.is-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  color:var(--cyan);font-weight:700;
}
.data-table tbody tr:hover td{background:rgba(47,224,200,.05)}

/* ---------- 12. 时间轴 ---------- */
.rail{position:relative;padding-left:30px}
.rail::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,var(--cyan),var(--line));
}
.rail__item{position:relative;padding-bottom:20px}
.rail__item::before{
  content:"";position:absolute;left:-30px;top:7px;width:9px;height:9px;
  border:1px solid var(--cyan);background:var(--ink-950);
  transform:rotate(45deg);
}
.rail__index{
  display:block;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.18em;color:var(--yellow);margin-bottom:4px;
}

/* ---------- 13. 面包屑 / 正文 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--fog);
}
.breadcrumb a{color:var(--fog);text-decoration:none;border-bottom:1px solid transparent;transition:color var(--dur),border-color var(--dur)}
.breadcrumb a:hover{color:var(--cyan);border-color:var(--cyan)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

.prose{max-width:40em;font-size:17px;line-height:1.8}
.prose p{margin-bottom:1.1em;color:#d6e0f5}
.prose h2{font-size:clamp(1.35rem,2.4vw,1.75rem);margin:1.9em 0 .65em}
.prose h3{font-size:1.15rem;margin:1.6em 0 .55em}
.prose li{position:relative;padding-left:20px;margin-bottom:.55em;color:#d6e0f5}
.prose li::before{content:"";position:absolute;left:2px;top:.78em;width:8px;height:1px;background:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(47,224,200,.4)}
.prose a:hover{border-color:var(--cyan)}

/* ---------- 14. 显现动效 ---------- */
.reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 15. 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(11,18,38,.97),rgba(5,7,15,.94));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.header-shell{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  display:grid;
  grid-template-columns:auto minmax(90px,1fr) auto;
  align-items:center;
  gap:clamp(14px,2.4vw,34px);
  padding-block:13px;
}
.brand-lockup{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  text-decoration:none;color:var(--paper);
}
.brand__mark{
  position:relative;flex:none;width:30px;height:30px;
  border:1px solid var(--cyan);border-radius:2px;
  background:linear-gradient(135deg,rgba(47,224,200,.18),rgba(5,7,15,0));
}
.brand__mark::before{
  content:"";position:absolute;left:4px;right:4px;top:50%;height:1px;
  background:var(--cyan);transform:rotate(-38deg);
}
.brand__mark::after{
  content:"";position:absolute;right:4px;bottom:4px;width:5px;height:5px;
  background:var(--orange);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-size:19px;font-weight:900;letter-spacing:.02em;line-height:1.2}
.brand__sub{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  color:var(--fog);line-height:1.4;white-space:nowrap;
}
.brand__meta{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  color:var(--fog);opacity:.85;padding-left:41px;
}

.header-ruler{display:flex;align-items:center;gap:12px;min-width:0}
.header-ruler__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  color:var(--fog);white-space:nowrap;
}
.header-ruler__ticks{
  flex:1;height:14px;min-width:40px;
  border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 13px);
  background-repeat:no-repeat;
  background-size:100% 6px;
  background-position:left bottom;
}

.site-nav{display:flex;align-items:center;gap:clamp(14px,2vw,26px);min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(8px,1.4vw,18px);counter-reset:navi}
.nav-item{counter-increment:navi}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:6px 1px;font-size:15px;font-weight:600;letter-spacing:.01em;
  color:var(--paper);text-decoration:none;white-space:nowrap;
  transition:color var(--dur) var(--ease);
}
.nav-link::before{
  content:counter(navi,decimal-leading-zero);
  font-family:var(--font-mono);font-size:10px;color:var(--fog);
  transition:color var(--dur);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--cyan)}
.nav-link:hover::before{color:var(--cyan)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::before{color:var(--yellow)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 13px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:rgba(18,28,59,.7);color:var(--paper);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;
  transition:border-color var(--dur),color var(--dur);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--violet);color:var(--violet)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px;flex:none}
.nav-toggle__bars span{
  position:absolute;left:0;right:0;height:2px;background:currentColor;
  transition:transform var(--dur) var(--ease);
}
.nav-toggle__bars span:nth-child(1){top:0}
.nav-toggle__bars span:nth-child(2){bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}

.compat-strip{
  display:flex;align-items:center;justify-content:center;gap:10px;
  margin:0;padding:6px var(--gutter);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;
  color:#f0b48c;background:rgba(255,106,43,.09);
  border-top:1px solid rgba(255,106,43,.22);
  text-align:center;
}
.compat-strip::before{
  content:"";flex:none;width:7px;height:7px;background:var(--orange);
  transform:rotate(45deg);
}

.progress-rail{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  pointer-events:none;background:transparent;
}
.progress-rail__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet),var(--orange));
}

@media (max-width:1240px){
  .nav-actions .btn--ghost{display:none}
}
@media (max-width:1080px){
  .header-shell{grid-template-columns:minmax(0,1fr) auto}
  .header-ruler{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:block;
    padding:10px var(--gutter) 22px;
    background:linear-gradient(180deg,#0B1226,#05070F);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 96px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility 0s linear var(--dur);
  }
  .site-nav[data-open]{
    opacity:1;visibility:visible;transform:translateY(0);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility 0s;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px dashed var(--line-soft)}
  .nav-link{padding:13px 2px;font-size:17px;width:100%}
  .nav-link::before{font-size:11px}
  .nav-link::after{display:none}
  .nav-actions{flex-direction:column;align-items:stretch;margin-top:16px}
  .nav-actions .btn--ghost{display:inline-flex}
  html.is-nav-open,html.is-nav-open body{overflow:hidden}
}
@media (max-width:560px){
  .brand__sub{display:none}
  .brand__meta{padding-left:0;font-size:10px}
  .nav-toggle__label{display:none}
  .compat-strip{font-size:10.5px;text-align:left;justify-content:flex-start}
}

/* ---------- 16. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:linear-gradient(180deg,#0B1226,#05070F);
  border-top:1px solid var(--line);
}
.footer-shell{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  padding-block:clamp(34px,5.5vw,62px) clamp(20px,3vw,32px);
  display:grid;
  grid-template-columns:1.4fr .9fr .9fr 1.5fr;
  gap:clamp(20px,3vw,40px);
}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-brand__head{display:flex;align-items:center;gap:11px}
.footer-brand__name{font-size:19px;font-weight:900;letter-spacing:.02em}
.footer-brand__sub{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--fog);
}
.footer-brand__line{font-size:14.5px;color:#c3cfe6;max-width:30em}

.legend{display:flex;flex-direction:column;gap:7px;margin-top:4px}
.legend__item{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--fog);
}
.legend__swatch{flex:none;width:10px;height:10px;border-radius:2px;border:1px solid rgba(242,247,255,.2)}
.legend__swatch--cyan{background:var(--cyan)}
.legend__swatch--orange{background:var(--orange)}
.legend__swatch--violet{background:var(--violet)}

.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col__title{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--yellow);
}
.footer-col__title::after{content:"";flex:1;height:1px;background:var(--line)}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-link{
  display:inline-block;padding:3px 0;font-size:15px;color:var(--fog);
  text-decoration:none;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-link:hover{color:var(--cyan);transform:translateX(3px)}

.footer-contact__row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-bottom:9px;border-bottom:1px dashed var(--line-soft);
}
.footer-contact__label{
  flex:none;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--fog);
}
.footer-contact__value{font-size:14.5px;color:#d6e0f5;word-break:break-word}
.footer-contact__value--mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--paper)}
.footer-contact__hours{font-size:13px;color:var(--fog);line-height:1.7}
.copy-status{
  min-height:1.4em;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.06em;color:var(--cyan);
}

.footer-bottom{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  padding-block:14px 26px;
  border-top:1px dashed var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--fog);
}
.footer-bottom__legal{color:var(--fog)}
.footer-bottom__domain{color:#a9b8d8}
.footer-bottom__copy{margin-left:auto;color:var(--fog)}

@media (max-width:1040px){
  .footer-shell{grid-template-columns:1fr 1fr}
  .footer-brand,.footer-col--contact{grid-column:span 2}
}
@media (max-width:640px){
  .footer-shell{grid-template-columns:1fr}
  .footer-brand,.footer-col--contact{grid-column:span 1}
  .footer-bottom__copy{margin-left:0;width:100%}
}

/* ---------- 17. 无障碍偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
  .btn:hover,.card:hover,.float-badge:hover{transform:none}
  .progress-rail__bar{transition:none}
}