/* ===========================================================
   新浦京13677 品牌站 · 共享样式 /assets/site.css
   夜间塔台 × 数据仪表盘：深墨蓝底、暖纸内页、通道编号
   =========================================================== */

:root{
  --ink-900:#0B1622;
  --ink-700:#16293D;
  --ink-500:#24405C;
  --paper-100:#F3EAD9;
  --paper-300:#E3D5BC;
  --signal-orange:#FF6A2A;
  --celadon:#5FB3A1;
  --glow-amber:#FFC46B;
  --mist-200:#C8D2DC;
  --white-soft:#F7FAFC;
  --clay-600:#B4552F;

  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --display:"Arial Narrow","Helvetica Neue Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --container-max:1240px;
  --gutter:clamp(18px,4vw,48px);
  --stack:clamp(48px,7vw,96px);
  --radius:2px;
  --header-h:64px;
  --hard-shadow:6px 6px 0 rgba(3,9,16,.5);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--mist-200);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg,video,canvas{display:block;max-width:100%}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.18}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
::selection{background:var(--signal-orange);color:var(--ink-900)}

/* ---------- 中文排版 ---------- */
.mono{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.display{
  font-family:var(--display);
  font-weight:800;
  font-size:clamp(2.6rem,6vw,5.4rem);
  line-height:1.02;
  letter-spacing:.03em;
  color:var(--white-soft);
  text-transform:uppercase;
}
.section-title{
  font-family:var(--display);
  font-weight:800;
  font-size:clamp(1.5rem,2.4vw,2.25rem);
  line-height:1.2;
  letter-spacing:.04em;
  color:var(--white-soft);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--glow-amber);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.lede{font-size:18px;line-height:1.75;color:var(--mist-200);max-width:38em}
.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;
}
:focus-visible{outline:2px solid var(--glow-amber);outline-offset:3px}
[id]{scroll-margin-top:120px}

/* ---------- 布局原子 ---------- */
.container{
  width:100%;
  max-width:var(--container-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding:var(--stack) 0}
.section--tight{padding:clamp(32px,4vw,56px) 0}
.band--ink{background:var(--ink-900);color:var(--mist-200)}
.band--ink-2{background:var(--ink-700);color:var(--mist-200)}
.band--paper{background:var(--paper-100);color:var(--ink-900)}
.band--paper .section-title,
.band--paper .display,
.band--paper h2,
.band--paper h3{color:var(--ink-900)}
.band--paper .lede{color:#3c4a58}
.section-rule{border:0;height:1px;background:var(--ink-500);margin:0}
.band--paper .section-rule{background:rgba(11,22,34,.22)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:clamp(16px,3vw,40px);
  flex-wrap:wrap;
  margin-bottom:clamp(24px,3vw,44px);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2vw,28px);
}
.span-12{grid-column:span 12}
.span-8{grid-column:span 8}
.span-6{grid-column:span 6}
.span-4{grid-column:span 4}
.span-3{grid-column:span 3}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  border:2px solid transparent;
  border-radius:var(--radius);
  font-size:15px;
  line-height:1;
  letter-spacing:.04em;
  transition:transform .18s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn--sm{padding:9px 15px;font-size:14px}
.btn--primary{
  background:var(--signal-orange);
  border-color:var(--signal-orange);
  color:#12100C;
  box-shadow:3px 3px 0 rgba(0,0,0,.45);
}
.btn--primary:hover{background:var(--glow-amber);border-color:var(--glow-amber)}
.btn--ghost{
  background:transparent;
  border-color:var(--ink-500);
  color:var(--white-soft);
}
.btn--ghost:hover{border-color:var(--celadon);color:var(--celadon)}
.btn--quiet{
  background:var(--paper-300);
  border-color:var(--ink-900);
  color:var(--ink-900);
  box-shadow:3px 3px 0 var(--ink-900);
}
.btn--quiet:hover{background:var(--glow-amber)}
.btn:active{transform:translateY(1px)}

/* ---------- 头部 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-120px;
  z-index:200;
  padding:12px 20px;
  background:var(--glow-amber);
  color:var(--ink-900);
  font-weight:700;
  border:2px solid var(--ink-900);
  border-radius:var(--radius);
  transition:top .2s ease;
}
.skip-link:focus{top:12px}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-500);
}
.header-upper{
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-500);
  max-height:160px;
  overflow:hidden;
  transition:max-height .28s ease,opacity .2s ease,border-color .2s ease;
}
.header-upper__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(14px,3vw,40px);
  flex-wrap:wrap;
  padding:11px 0;
}
.header-upper__brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
}
.header-upper__logo{
  font-family:var(--display);
  font-weight:800;
  font-size:16px;
  letter-spacing:.06em;
  color:var(--white-soft);
  text-transform:uppercase;
}
.header-upper__logo:hover{color:var(--glow-amber)}
.header-upper__dot{
  width:6px;height:6px;
  background:var(--signal-orange);
  box-shadow:0 0 0 4px rgba(255,106,42,.16);
}
.header-upper__line{color:var(--mist-200);opacity:.82;letter-spacing:.02em}
.header-upper__meta{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:12px;
  flex-wrap:wrap;
}
.header-upper__code{color:var(--celadon);letter-spacing:.14em}
.header-upper__status{color:var(--mist-200);opacity:.7}
.site-header.is-condensed .header-upper{
  max-height:0;
  opacity:0;
  border-bottom-color:transparent;
}

.header-lower{background:var(--ink-700)}
.header-lower__inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,3vw,34px);
  min-height:var(--header-h);
  padding-top:8px;
  padding-bottom:8px;
}

.nav-strip{display:block;flex:1 1 auto;min-width:0}
.nav-strip__list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:clamp(6px,1.5vw,26px);
}
.nav-strip__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 2px;
  font-size:15px;
  letter-spacing:.03em;
  color:var(--mist-200);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.nav-strip__link::before{
  content:"";
  position:absolute;
  left:0;
  top:-6px;
  width:6px;
  height:2px;
  background:transparent;
  transition:background-color .2s ease;
}
.nav-strip__link:hover{color:var(--white-soft);border-bottom-color:var(--glow-amber)}
.nav-strip__link[aria-current="page"]{
  color:var(--white-soft);
  border-bottom-color:var(--signal-orange);
}
.nav-strip__link[aria-current="page"]::before{background:var(--signal-orange)}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border:2px solid var(--ink-500);
  border-radius:var(--radius);
  color:var(--white-soft);
  font-size:14px;
  letter-spacing:.06em;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--glow-amber);color:var(--glow-amber)}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:currentColor;
  transition:transform .2s ease;
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[data-open="true"]{border-color:var(--glow-amber);color:var(--glow-amber)}
.nav-toggle[data-open="true"] .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle[data-open="true"] .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}

.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--signal-orange),var(--glow-amber) 55%,var(--celadon));
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--mist-200);
  border-top:2px solid var(--ink-500);
}
.quick-dock{
  background:var(--ink-700);
  border-bottom:1px solid var(--ink-500);
}
.quick-dock__inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2.5vw,32px);
  flex-wrap:wrap;
  padding:14px 0;
}
.quick-dock__label{
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--glow-amber);
}
.quick-dock__list{display:flex;flex-wrap:wrap;gap:10px}
.quick-dock__link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:8px 14px;
  border:1px solid var(--ink-500);
  border-radius:var(--radius);
  font-size:14px;
  color:var(--white-soft);
  transition:transform .18s ease,border-color .2s ease,color .2s ease;
}
.quick-dock__link:hover{
  transform:translateY(-2px);
  border-color:var(--glow-amber);
  color:var(--glow-amber);
}
.quick-dock__num{font-size:11px;color:var(--celadon)}
.quick-dock__link--hot{border-color:rgba(255,106,42,.55)}
.quick-dock__link--hot .quick-dock__num{color:var(--signal-orange)}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(4,1fr);
  gap:clamp(22px,3vw,40px);
  padding:clamp(40px,6vw,72px) 0 clamp(26px,4vw,44px);
}
.footer-col--brand{max-width:34ch}
.footer-brand{
  font-family:var(--display);
  font-weight:800;
  font-size:clamp(1.5rem,2.6vw,2.1rem);
  letter-spacing:.05em;
  color:var(--white-soft);
  text-transform:uppercase;
  line-height:1.1;
}
.footer-col__note{
  margin-top:14px;
  font-size:14px;
  line-height:1.7;
  color:var(--mist-200);
  opacity:.82;
}
.footer-col__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--ink-500);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--white-soft);
}
.footer-col__title::before{
  content:"";
  width:6px;
  height:6px;
  background:var(--celadon);
}
.footer-col__list li a{
  display:inline-block;
  padding:5px 0;
  font-size:15px;
  color:var(--mist-200);
  transition:color .2s ease,transform .2s ease;
}
.footer-col__list li a:hover{color:var(--glow-amber);transform:translateX(3px)}

.footer-contact{
  display:grid;
  gap:10px;
  padding:clamp(20px,3vw,30px) 0;
  border-top:1px solid var(--ink-500);
}
.footer-contact__row{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:10px 14px;
}
.footer-contact__key{
  font-size:11px;
  letter-spacing:.18em;
  color:var(--celadon);
  min-width:56px;
}
.footer-contact__val{
  font-size:15px;
  color:var(--white-soft);
  word-break:break-word;
}
.copy-btn{
  padding:5px 11px;
  border:1px solid var(--ink-500);
  border-radius:var(--radius);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--mist-200);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.copy-btn:hover{border-color:var(--glow-amber);color:var(--glow-amber)}
.copy-btn.is-done{border-color:var(--celadon);color:var(--celadon)}
.footer-note{
  max-width:62ch;
  font-size:13px;
  line-height:1.7;
  color:var(--mist-200);
  opacity:.72;
}

.footer-base{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px 24px;
  padding:18px 0 28px;
  border-top:1px solid var(--ink-500);
  font-size:13px;
  color:var(--mist-200);
  opacity:.85;
}
.footer-base__legal{max-width:66ch}
.footer-base__legal .mono{color:var(--paper-300)}
.footer-base__copy{font-family:var(--mono);letter-spacing:.04em}

.to-top{
  position:fixed;
  right:clamp(14px,3vw,34px);
  bottom:clamp(14px,3vw,34px);
  z-index:90;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;
  height:46px;
  background:var(--ink-700);
  border:2px solid var(--ink-500);
  border-radius:var(--radius);
  color:var(--white-soft);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease,color .2s ease;
}
.to-top__icon{font-size:18px;line-height:1}
.to-top:hover{border-color:var(--glow-amber);color:var(--glow-amber)}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:0;
  padding:16px 0;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist-200);
}
.breadcrumbs li{display:inline-flex;align-items:center}
.breadcrumbs li:not(:last-child)::after{
  content:"/";
  margin:0 10px;
  color:var(--ink-500);
}
.breadcrumbs a{color:var(--mist-200);transition:color .2s ease}
.breadcrumbs a:hover{color:var(--glow-amber)}
.breadcrumbs__current{color:var(--white-soft)}
.band--paper .breadcrumbs{color:#5a6673}
.band--paper .breadcrumbs a{color:#5a6673}
.band--paper .breadcrumbs__current{color:var(--ink-900)}
.band--paper .breadcrumbs li:not(:last-child)::after{color:rgba(11,22,34,.35)}

/* ---------- 正文容器 ---------- */
.prose{
  max-width:38em;
  font-size:17px;
  line-height:1.75;
  color:var(--mist-200);
}
.prose > * + *{margin-top:1em}
.prose h2{
  margin-top:1.8em;
  font-family:var(--display);
  font-size:clamp(1.4rem,2.2vw,1.9rem);
  letter-spacing:.03em;
  color:var(--white-soft);
}
.prose h3{
  margin-top:1.5em;
  font-size:1.1rem;
  color:var(--white-soft);
}
.prose ul > li{
  position:relative;
  padding-left:1.4em;
}
.prose ul > li + li{margin-top:.5em}
.prose ul > li::before{
  content:"";
  position:absolute;
  left:0;
  top:.78em;
  width:9px;
  height:2px;
  background:var(--celadon);
}
.prose a{
  color:var(--glow-amber);
  border-bottom:1px solid currentColor;
}
.prose strong{color:var(--white-soft);font-weight:700}
.band--paper .prose{color:#3c4a58}
.band--paper .prose h2,
.band--paper .prose h3,
.band--paper .prose strong{color:var(--ink-900)}
.band--paper .prose a{color:var(--clay-600)}
.band--paper .prose ul > li::before{background:var(--clay-600)}

/* ---------- 基础组件：卡片 / 标签 / 图片容器 ---------- */
.card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.4vw,28px);
  background:var(--ink-700);
  border:2px solid var(--ink-500);
  border-radius:var(--radius);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-2px);
  border-color:var(--glow-amber);
  box-shadow:var(--hard-shadow);
}
.card__index{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--celadon);
}
.card__title{
  font-family:var(--display);
  font-size:1.2rem;
  letter-spacing:.03em;
  color:var(--white-soft);
}
.card__text{font-size:15px;line-height:1.7;color:var(--mist-200)}
.band--paper .card{
  background:var(--paper-300);
  border-color:var(--ink-900);
  color:var(--ink-900);
  box-shadow:4px 4px 0 rgba(11,22,34,.18);
}
.band--paper .card__title{color:var(--ink-900)}
.band--paper .card__text{color:#3c4a58}
.band--paper .card__index{color:var(--clay-600)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--ink-500);
  border-radius:var(--radius);
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist-200);
}
.tag--orange{border-color:var(--signal-orange);color:var(--signal-orange)}
.tag--celadon{border-color:var(--celadon);color:var(--celadon)}
.tag--paper{border-color:rgba(11,22,34,.35);color:var(--clay-600)}

.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background:var(--ink-700);
  border:2px solid var(--ink-500);
  border-radius:var(--radius);
  box-shadow:var(--hard-shadow);
}
.media-frame > img,
.media-frame > svg{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--wide{aspect-ratio:16 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--paper{
  background:var(--paper-300);
  border-color:var(--ink-900);
  box-shadow:6px 6px 0 rgba(11,22,34,.22);
}
.media-frame__tag{
  position:absolute;
  left:12px;
  bottom:12px;
  padding:4px 10px;
  background:var(--ink-900);
  border:1px solid var(--ink-500);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--glow-amber);
}

/* ---------- 章节索引轨道 ---------- */
.toc-rail{
  position:sticky;
  top:calc(var(--header-h) + 40px);
  align-self:start;
}
.toc-rail__label{
  margin-bottom:14px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--glow-amber);
}
.toc-rail__list{
  display:flex;
  flex-direction:column;
  border-left:1px solid var(--ink-500);
}
.toc-rail__link{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:9px 0 9px 14px;
  margin-left:-1px;
  border-left:2px solid transparent;
  font-size:14px;
  line-height:1.45;
  color:var(--mist-200);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.toc-rail__link:hover{
  color:var(--white-soft);
  border-left-color:var(--ink-500);
  background:rgba(36,64,92,.28);
}
.toc-rail__link.is-current{
  color:var(--white-soft);
  border-left-color:var(--signal-orange);
}
.toc-rail__num{
  font-family:var(--mono);
  font-size:11px;
  color:var(--celadon);
  padding-top:3px;
}
.toc-rail__link.is-current .toc-rail__num{color:var(--signal-orange)}
.band--paper .toc-rail__label{color:var(--clay-600)}
.band--paper .toc-rail__list{border-left-color:rgba(11,22,34,.22)}
.band--paper .toc-rail__link{color:#4c5866}
.band--paper .toc-rail__link:hover{color:var(--ink-900);background:rgba(11,22,34,.05)}
.band--paper .toc-rail__link.is-current{color:var(--ink-900);border-left-color:var(--clay-600)}
.band--paper .toc-rail__num{color:var(--clay-600)}

/* ---------- 动效与显现 ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .span-8,.span-6{grid-column:span 12}
  .span-4{grid-column:span 6}
  .span-3{grid-column:span 6}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 24px}
  .footer-col--brand{grid-column:1 / -1;max-width:none}
}

@media (max-width:880px){
  body{font-size:16px}
  :root{--header-h:56px}

  .header-lower__inner{flex-wrap:wrap;gap:10px;padding-top:9px;padding-bottom:9px}
  .header-actions{order:1;margin-left:0}
  .header-actions .btn--ghost{display:none}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}

  .nav-strip{
    display:none;
    order:3;
    flex-basis:100%;
    width:100%;
    margin-top:6px;
    padding-top:12px;
    border-top:1px solid var(--ink-500);
  }
  .nav-strip[data-open="true"]{display:block}
  .nav-strip__list{flex-direction:column;align-items:stretch;gap:0}
  .nav-strip__link{
    width:100%;
    padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid var(--ink-500);
    border-left:2px solid transparent;
  }
  .nav-strip__link::before{display:none}
  .nav-strip__link:hover{border-bottom-color:var(--ink-500)}
  .nav-strip__link[aria-current="page"]{
    padding-left:12px;
    border-bottom-color:var(--ink-500);
    border-left-color:var(--signal-orange);
  }

  .toc-rail{position:static;top:auto}
  .toc-rail__list{flex-direction:row;flex-wrap:wrap;border-left:0;gap:8px}
  .toc-rail__link{
    padding:7px 12px;
    border:1px solid var(--ink-500);
    border-left:1px solid var(--ink-500);
    border-radius:var(--radius);
  }
  .toc-rail__link.is-current{border-color:var(--signal-orange)}

  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-contact__key{min-width:48px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .to-top{width:42px;height:42px}
}

@media (max-width:680px){
  .span-4,.span-3{grid-column:span 12}
  .quick-dock__inner{padding:12px 0}
  .quick-dock__label{width:100%}
  .quick-dock__link{flex:1 1 44%}
}

/* ---------- 减弱动效 ---------- */
@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}
}