/* ============================================================
   BET356 / et356手机版 —— 共享外壳样式 /assets/site.css
   工业档案 × 数字终端
   ============================================================ */

/* ---------- 0. 变量 ---------- */
:root{
  --ink-0:#0E1720;
  --ink-1:#16222E;
  --ink-2:#22323F;
  --cyan:#2EE6D6;
  --cyan-deep:#12A79A;
  --orange:#FF8A3D;
  --orange-deep:#C85A1B;
  --paper:#F5F7F9;
  --cool:#93A3B1;
  --tag:#E6C55C;

  --line:rgba(147,163,177,.20);
  --line-strong:rgba(147,163,177,.38);
  --line-grid:rgba(34,50,63,.85);

  --font-body:"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --shell:1200px;
  --gutter:16px;
  --radius:2px;
  --bar-h:56px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --shadow-lift:0 10px 30px rgba(0,0,0,.35);
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--ink-0);
  background-image:
    linear-gradient(rgba(34,50,63,.35) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,50,63,.35) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
table{border-collapse:collapse;border-spacing:0;}
input,select,textarea{font:inherit;color:inherit;}
[hidden]{display:none !important;}

/* ---------- 2. 中文排版与标题体系 ---------- */
h1,h2,h3,h4{
  font-weight:800;
  line-height:1.08;
  letter-spacing:.06em;
  font-stretch:condensed;
  text-wrap:balance;
}
h1{font-size:clamp(40px,7.2vw,88px);}
h2{font-size:clamp(28px,4vw,44px);}
h3{font-size:clamp(20px,2.4vw,28px);line-height:1.2;}
h4{font-size:clamp(17px,1.6vw,20px);line-height:1.3;letter-spacing:.04em;}
p{max-width:40em;}

.mono,.data-num{
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

.prose{max-width:36em;color:var(--cool);}
.prose > * + *{margin-top:16px;}
.prose h2,.prose h3{color:var(--paper);margin-top:34px;}
.prose p{max-width:36em;}
.prose ul{padding-left:0;}
.prose ul li{position:relative;padding-left:20px;margin-top:8px;}
.prose ul li::before{content:"";position:absolute;left:0;top:.85em;width:8px;height:1px;background:var(--cyan);}
.prose strong{color:var(--paper);font-weight:700;}

/* ---------- 3. 通用工具 ---------- */
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.stack > * + *{margin-top:20px;}
.stack-sm > * + *{margin-top:12px;}
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:var(--radius);
}

/* ---------- 4. 区块节奏 ---------- */
.section{padding:clamp(56px,8vw,104px) 0;position:relative;}
.section--tight{padding:clamp(36px,5vw,64px) 0;}
.section--alt{background:var(--ink-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--paper{background:var(--paper);color:var(--ink-0);}
.section--paper .section__title,.section--paper h2,.section--paper h3{color:var(--ink-0);}
.section--paper .prose{color:#4A5A68;}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 18px;
  margin-bottom:clamp(24px,4vw,48px);
  border-bottom:1px solid var(--line);
  padding-bottom:16px;
}
.section__index{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ink-0);
  background:var(--tag);
  padding:2px 8px;
  border-radius:var(--radius);
}
.section__title{font-size:clamp(26px,3.6vw,44px);}
.section__note{font-size:14px;color:var(--cool);margin-left:auto;}

/* ---------- 5. 12 栏网格 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:20px;
}
.grid-12 > *{grid-column:1 / -1;}
@media (min-width:900px){
  .grid-12{gap:24px 24px;}
  .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-12{grid-column:span 12;}
  .start-2{grid-column-start:2;}
  .start-3{grid-column-start:3;}
  .start-4{grid-column-start:4;}
  .start-5{grid-column-start:5;}
  .start-6{grid-column-start:6;}
  .col-4.start-2{grid-column:2 / span 4;}
  .col-5.start-3{grid-column:3 / span 5;}
  .col-6.start-4{grid-column:4 / span 6;}
  .col-8.start-4{grid-column:4 / span 8;}
}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 16px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  line-height:1.2;
  color:var(--paper);
  background:transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn--repair{background:var(--orange);border-color:var(--orange);color:var(--ink-0);}
.btn--repair:hover{background:var(--orange-deep);border-color:var(--orange-deep);}
.btn--train{background:var(--cyan);border-color:var(--cyan);color:var(--ink-0);}
.btn--train:hover{background:var(--cyan-deep);border-color:var(--cyan-deep);}
.btn--ghost{border-color:var(--line-strong);color:var(--cool);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--block{width:100%;}

/* ---------- 7. 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.5;
  color:var(--cool);
  white-space:nowrap;
}
.tag--repair{border-color:rgba(255,138,61,.55);color:var(--orange);background:rgba(255,138,61,.08);}
.tag--train{border-color:rgba(46,230,214,.5);color:var(--cyan);background:rgba(46,230,214,.08);}
.tag--label{background:var(--tag);border-color:var(--tag);color:var(--ink-0);}

.archive-id{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--tag);
  border:1px dashed rgba(230,197,92,.6);
  padding:2px 8px;
  border-radius:var(--radius);
}

/* ---------- 8. 卡片 / 面板 ---------- */
.panel{
  position:relative;
  display:block;
  background:var(--ink-1);
  border:1px solid var(--line);
  border-left:2px solid var(--cyan);
  border-radius:var(--radius);
  padding:22px 22px 24px;
  transition:border-color .26s var(--ease),transform .26s var(--ease),box-shadow .26s var(--ease),background-color .26s var(--ease);
}
a.panel:hover,.panel--link:hover{
  border-color:var(--orange);
  transform:translateY(-2px);
  box-shadow:var(--shadow-lift);
}
.panel__head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;}
.panel__title{font-size:20px;letter-spacing:.05em;line-height:1.3;}
.panel__body{color:var(--cool);font-size:15px;}
.panel__body > * + *{margin-top:10px;}
.panel__foot{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line-grid);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 16px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--cool);
}
.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1040px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}

/* ---------- 9. 归档时间轴 ---------- */
.arc-axis{position:relative;padding-left:28px;}
.arc-axis::before{
  content:"";
  position:absolute;left:6px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,var(--cyan),rgba(46,230,214,0) 88%);
}
.arc-axis__item{position:relative;padding-bottom:28px;}
.arc-axis__item:last-child{padding-bottom:0;}
.arc-axis__item::before{
  content:"";
  position:absolute;left:-26px;top:.55em;
  width:9px;height:9px;
  background:var(--ink-0);
  border:1px solid var(--cyan);
}
.arc-axis__label{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--tag);
  margin-bottom:4px;
}
.arc-axis__title{font-size:17px;letter-spacing:.05em;color:var(--paper);}
.arc-axis__text{font-size:14px;color:var(--cool);max-width:32em;}
.arc-axis__dot{
  display:inline-block;width:8px;height:8px;background:var(--orange);
  vertical-align:middle;margin-right:8px;
}

/* ---------- 10. 筛选 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:24px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.chip{
  padding:7px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:transparent;
  color:var(--cool);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.chip:hover{border-color:var(--cyan);color:var(--cyan);}
.chip[aria-pressed="true"],
.chip[data-active]{
  background:var(--ink-2);
  border-color:var(--cyan);
  color:var(--cyan);
}
.empty-note{
  border:1px dashed var(--line-strong);
  padding:22px;
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--cool);
  text-align:center;
}

/* ---------- 11. 表格 ---------- */
.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;}
.table-archive{width:100%;min-width:560px;font-size:14px;}
.table-archive th{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.08em;
  color:var(--cool);
  text-align:left;
  padding:10px 12px;
  border-bottom:1px solid var(--line-strong);
  white-space:nowrap;
}
.table-archive td{
  padding:13px 12px;
  border-bottom:1px solid var(--line-grid);
  color:var(--paper);
  vertical-align:top;
}
.table-archive tbody tr{transition:background-color .2s var(--ease);}
.table-archive tbody tr:hover{background:rgba(46,230,214,.06);}
.table-archive tbody tr:hover td{border-bottom-color:var(--cyan);}

/* ---------- 12. KPI 数据带 ---------- */
.kpi-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
@media (min-width:820px){.kpi-row{grid-template-columns:repeat(4,minmax(0,1fr));}}
.kpi{border-left:1px solid var(--line-grid);padding-left:14px;}
.kpi:first-child{border-left:0;padding-left:0;}
.kpi__value{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(22px,3vw,32px);
  line-height:1.2;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.kpi__label{display:block;font-size:13px;color:var(--cool);margin-top:4px;}

/* ---------- 13. 图片容器 ---------- */
.media-frame{
  position:relative;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:
    linear-gradient(140deg,rgba(46,230,214,.10),rgba(255,138,61,.10) 70%),
    var(--ink-1);
}
.media-frame--video{aspect-ratio:21 / 9;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame--tall{aspect-ratio:4 / 5;}
.media-frame__img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
  transition:transform .5s var(--ease);
}
a .media-frame__img:hover,.media-frame:hover .media-frame__img{transform:scale(1.02);}

/* ---------- 14. 面包屑 ---------- */
.crumbs{
  border-bottom:1px solid var(--line);
  background:rgba(14,23,32,.6);
}
.crumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--cool);
  padding:12px 0;
}
.crumbs__item{display:inline-flex;align-items:center;gap:6px;}
.crumbs__item + .crumbs__item::before{content:"/";color:var(--ink-2);}
.crumbs__link{color:var(--cool);transition:color .2s var(--ease);}
.crumbs__link:hover{color:var(--cyan);}
.crumbs__current{color:var(--paper);}

/* ---------- 15. 显现动效 ---------- */
.js-on .reveal{
  opacity:0;
  transform:translateX(-16px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
}
.js-on .reveal.is-in{opacity:1;transform:translateX(0);}

/* ---------- 16. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-80px;
  z-index:300;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink-0);
  font-size:14px;
  font-weight:700;
  letter-spacing:.08em;
  border-radius:var(--radius);
  transition:top .22s var(--ease);
}
.skip-link:focus{top:12px;}

/* ---------- 17. 顶部命令栏 ---------- */
.cmdbar{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(14,23,32,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.cmdbar__progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.cmdbar__inner{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:var(--bar-h);
}
.cmdbar[data-condensed] .cmdbar__inner{min-height:46px;}

.cmdbar__brand{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  flex:0 0 auto;
}
.cmdbar__brand-mark{
  font-size:18px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--paper);
}
.cmdbar__brand-note{
  display:none;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--cool);
}
.cmdbar__index{
  display:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--tag);
  border:1px solid rgba(230,197,92,.5);
  padding:1px 6px;
  border-radius:var(--radius);
}

.cmdbar__drawer-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  order:3;
  width:40px;height:36px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--cyan);
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.cmdbar__drawer-btn:hover{border-color:var(--cyan);}
.cmdbar__drawer-bars{
  position:relative;
  display:block;
  width:16px;height:1px;
  background:currentColor;
  transition:background-color .24s var(--ease);
}
.cmdbar__drawer-bars::before,
.cmdbar__drawer-bars::after{
  content:"";
  position:absolute;left:0;
  width:16px;height:1px;
  background:currentColor;
  transition:transform .28s var(--ease),top .28s var(--ease);
}
.cmdbar__drawer-bars::before{top:-5px;}
.cmdbar__drawer-bars::after{top:5px;}
.cmdbar__drawer-btn[aria-expanded="true"] .cmdbar__drawer-bars{background:transparent;}
.cmdbar__drawer-btn[aria-expanded="true"] .cmdbar__drawer-bars::before{top:0;transform:rotate(45deg);}
.cmdbar__drawer-btn[aria-expanded="true"] .cmdbar__drawer-bars::after{top:0;transform:rotate(-45deg);}
.cmdbar__drawer-text{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;
}

.cmdbar__nav{
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:160;
  width:min(320px,86vw);
  padding:76px 22px 32px;
  background:var(--ink-1);
  border-right:1px solid var(--line);
  overflow-y:auto;
  transform:translateX(-100%);
  transition:transform .32s var(--ease);
}
.cmdbar__nav[data-open]{transform:translateX(0);}
.cmdbar__nav-list{display:flex;flex-direction:column;gap:0;}
.cmdbar__nav-link{
  display:block;
  padding:13px 4px;
  border-bottom:1px solid var(--line-grid);
  font-size:16px;
  letter-spacing:.08em;
  color:var(--paper);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.cmdbar__nav-link:hover{color:var(--cyan);padding-left:10px;}
.cmdbar__nav-link[aria-current="page"]{color:var(--cyan);}
.cmdbar__nav-link[aria-current="page"]::before{content:"▍";color:var(--orange);margin-right:6px;}

.cmdbar__actions{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  flex:0 0 auto;
}
.cmdbar__actions .btn{padding:7px 10px;font-size:12px;letter-spacing:.04em;}
.cmdbar__status{
  display:none;
  position:relative;
  padding-left:14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cool);
  white-space:nowrap;
}
.cmdbar__status::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:6px;height:6px;margin-top:-3px;
  background:var(--orange);
  animation:pulse 2.4s infinite var(--ease);
}
@keyframes pulse{
  0%,100%{opacity:1;}
  50%{opacity:.25;}
}
.cmdbar__scrim{
  position:fixed;
  inset:0;
  z-index:150;
  background:rgba(6,10,14,.68);
  cursor:pointer;
}

@media (min-width:520px){
  .cmdbar__index{display:inline-block;}
}
@media (min-width:760px){
  .cmdbar__brand-note{display:inline;}
  .cmdbar__gutter{--gutter:24px;}
}
@media (min-width:1160px){
  :root{--gutter:24px;}
  .cmdbar__nav{
    position:static;
    width:auto;
    padding:0;
    background:none;
    border:0;
    overflow:visible;
    transform:none;
    transition:none;
    margin-left:22px;
  }
  .cmdbar__nav-list{flex-direction:row;gap:24px;}
  .cmdbar__nav-link{
    padding:6px 2px;
    border-bottom:0;
    font-size:13px;
    letter-spacing:.08em;
    color:var(--cool);
  }
  .cmdbar__nav-link:hover{padding-left:2px;color:var(--cyan);}
  .cmdbar__nav-link[aria-current="page"]{color:var(--paper);}
  .cmdbar__nav-link[aria-current="page"]::before{
    content:"";
    display:block;
    height:2px;
    background:var(--cyan);
    margin:0 0 4px;
  }
  .cmdbar__drawer-btn{display:none;}
  .cmdbar__scrim{display:none;}
  .cmdbar__actions{margin-left:auto;}
}
@media (min-width:1320px){
  .cmdbar__status{display:inline-block;}
  .cmdbar__actions .btn{padding:9px 14px;font-size:13px;}
}
.cmdbar[data-condensed] .cmdbar__status{display:none;}
.cmdbar[data-condensed] .cmdbar__index{display:none;}

/* ---------- 18. 页脚 ---------- */
.arcfoot{
  position:relative;
  background:var(--ink-0);
  border-top:1px solid var(--line);
  color:var(--cool);
}
.arcfoot__strip{
  height:12px;
  border-bottom:1px solid var(--line);
  background-image:
    repeating-linear-gradient(90deg,rgba(46,230,214,.42) 0 1px,transparent 1px 8px),
    repeating-linear-gradient(90deg,rgba(255,138,61,.38) 0 2px,transparent 2px 26px);
}
.arcfoot__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px 24px;
  padding-top:clamp(36px,5vw,60px);
  padding-bottom:clamp(28px,4vw,44px);
}
.arcfoot__mark{
  font-size:26px;
  font-weight:800;
  letter-spacing:.18em;
  color:var(--paper);
  line-height:1.2;
}
.arcfoot__note{font-size:14px;color:var(--cool);margin-top:8px;max-width:34em;}
.arcfoot__meta{
  margin-top:12px;
  font-size:12px;
  color:var(--cool);
  display:flex;
  flex-wrap:wrap;
  gap:6px 12px;
  align-items:center;
}
.arcfoot__contact{margin-top:20px;border-top:1px solid var(--line-grid);padding-top:14px;}
.arcfoot__contact-row{
  display:flex;
  gap:12px;
  font-size:13px;
  padding:5px 0;
  max-width:none;
}
.arcfoot__contact-label{
  flex:0 0 42px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--tag);
  letter-spacing:.08em;
}
.arcfoot__contact-value{color:var(--paper);word-break:break-all;}
.arcfoot__col-title{
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--paper);
  padding-bottom:10px;
  margin-bottom:12px;
  border-bottom:1px solid var(--line-grid);
}
.arcfoot__links{display:flex;flex-direction:column;gap:8px;}
.arcfoot__link{
  display:inline-block;
  font-size:14px;
  color:var(--cool);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.arcfoot__link:hover{color:var(--cyan);transform:translateX(3px);}
.arcfoot__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  padding-top:18px;
  padding-bottom:34px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cool);
}
.arcfoot__legal{font-size:12px;max-width:none;}
.arcfoot__mono{color:var(--tag);max-width:none;margin-left:auto;}

@media (min-width:640px){
  .arcfoot__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .arcfoot__brand{grid-column:1 / -1;}
}
@media (min-width:1000px){
  .arcfoot__grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px 28px;}
  .arcfoot__brand{grid-column:auto;}
}

/* ---------- 19. 降级与可达性 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js-on .reveal{opacity:1;transform:none;}
  .btn:hover{transform:none;}
  a.panel:hover,.panel--link:hover{transform:none;}
  .arcfoot__link:hover{transform:none;}
  .cmdbar__nav-link:hover{padding-left:4px;}
}
@media (min-width:1160px){
  .cmdbar__nav-link:hover{padding-left:2px;}
}