/* ============================================================
   八方体育 · 共享样式 /assets/site.css
   夜间主场数据面板：黑白高对比 + 沙土暖橙锚点 + 荧光青绿交互
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-900:#0A1020;
  --ink-800:#131C33;
  --ink-600:#22304F;
  --bone:#F3EFE6;
  --sand:#D9CFBD;
  --brand:#E2762E;
  --brand-lift:#FF9E4D;
  --neon:#37F2C9;
  --neon-soft:#8FE9D0;
  --mist:#9AA7BF;

  --font-display:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --font-mono:"SFMono-Regular","JetBrains Mono","Cascadia Mono","Roboto Mono",Consolas,"Courier New",monospace;

  --shell:1240px;
  --r-xl:28px;
  --r-lg:20px;
  --r-md:14px;
  --pill:999px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.26s;
  --hdr:84px;
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--bone);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.1;
  color:inherit;
}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
dl,dd,dt{margin:0}
img,svg,video{max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
strong,b{font-weight:700;color:var(--bone)}
em{font-style:normal}
hr{border:0;border-top:1px solid var(--ink-600);margin:0}
[hidden]{display:none !important}
::selection{background:var(--neon);color:#04140F}

:focus-visible{
  outline:3px solid var(--neon);
  outline-offset:3px;
  border-radius:8px;
}

/* ---------- 3. 布局与通用文本 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,40px);
}

.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(28px,4vw,52px)}
.section--ink{background:var(--ink-800)}
.section--bone{background:var(--bone);color:var(--ink-900)}
.section--bone .lede,
.section--bone .eyebrow,
.section--bone .breadcrumb{color:#55617A}

.section-head{
  display:grid;
  gap:16px 44px;
  grid-template-columns:minmax(0,1fr);
  margin-bottom:clamp(24px,3.4vw,44px);
}
@media (min-width:880px){
  .section-head{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:end}
}

.display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(38px,7vw,92px);
  line-height:.98;
  letter-spacing:-.03em;
}
.lede{font-size:clamp(16px,1.35vw,18px);line-height:1.8;color:var(--mist);max-width:62ch}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--neon-soft);
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  border-radius:2px;
  background:var(--neon);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--pill);
  border:1px solid var(--ink-600);
  background:rgba(34,48,79,.55);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--bone);
}
.tag--neon{
  border-color:rgba(55,242,201,.55);
  background:rgba(55,242,201,.1);
  color:var(--neon);
}

/* ---------- 4. 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:clamp(18px,4vw,40px);
  top:-72px;
  z-index:120;
  padding:10px 20px;
  border-radius:var(--pill);
  background:var(--neon);
  color:#04140F;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:10px}

/* ---------- 5. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  color:var(--bone);
  background:linear-gradient(180deg,rgba(10,16,32,.98) 0%,rgba(19,28,51,.94) 72%,rgba(10,16,32,.93) 100%);
  border-bottom:1px solid var(--ink-600);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .3s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:linear-gradient(90deg,transparent 0%,var(--brand) 22%,var(--neon) 78%,transparent 100%);
  opacity:.45;
  pointer-events:none;
}

.header-progress{
  position:absolute;
  left:0;top:0;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--brand),var(--brand-lift) 40%,var(--neon));
  z-index:3;
  pointer-events:none;
}

.header-shell{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,30px);
  min-height:var(--hdr);
  transition:min-height .28s var(--ease);
}

/* 字标 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding:4px 0;
}
.brand-mark{
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  border-radius:var(--r-md);
  background:linear-gradient(150deg,var(--brand-lift),var(--brand));
  color:#1A0D03;
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  letter-spacing:0;
  transition:width .28s var(--ease),height .28s var(--ease),border-radius .28s var(--ease),font-size .28s var(--ease);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:.04em;
  white-space:nowrap;
}
.brand-tag{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
  max-height:20px;
  overflow:hidden;
  transition:max-height .28s var(--ease),opacity .2s var(--ease);
}
.brand-code{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--neon-soft);
  border:1px dashed var(--ink-600);
  border-radius:var(--pill);
  padding:3px 10px;
  white-space:nowrap;
  max-height:24px;
  overflow:hidden;
  transition:max-height .28s var(--ease),opacity .2s var(--ease),padding .28s var(--ease);
}

/* 滚动态 */
[data-header][data-scrolled] .header-shell{min-height:62px}
[data-header][data-scrolled] .brand-mark{
  width:34px;
  height:34px;
  border-radius:11px;
  font-size:17px;
}
[data-header][data-scrolled] .brand-tag,
[data-header][data-scrolled] .brand-code{
  max-height:0;
  opacity:0;
  padding-block:0;
}

/* 右侧导航区 */
.header-rail{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.4vw,20px);
  margin-left:auto;
}
.main-nav{display:block}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--pill);
  font-size:14.5px;
  letter-spacing:.02em;
  color:rgba(243,239,230,.74);
  transition:color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-link:hover{
  color:var(--bone);
  background:rgba(34,48,79,.8);
}
.nav-link[aria-current="page"]{
  color:var(--bone);
  background:rgba(55,242,201,.12);
  box-shadow:inset 0 0 0 1px rgba(55,242,201,.55);
}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:16px;
  height:2px;
  margin-left:-8px;
  border-radius:2px;
  background:var(--neon);
}

/* 常驻检索入口 */
.search-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--pill);
  border:1px solid var(--ink-600);
  background:rgba(19,28,51,.85);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--bone);
  white-space:nowrap;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.search-pill:hover{
  border-color:var(--neon);
  color:var(--neon);
  background:rgba(55,242,201,.08);
}
.search-pill-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--neon);
  animation:pulse 2.6s var(--ease) infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(55,242,201,.55)}
  70%{box-shadow:0 0 0 9px rgba(55,242,201,0)}
  100%{box-shadow:0 0 0 0 rgba(55,242,201,0)}
}

/* 移动端菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  border-radius:var(--pill);
  border:1px solid var(--ink-600);
  background:rgba(19,28,51,.9);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.1em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle-bars{position:relative;display:block;width:18px;height:10px}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:2px;
  border-radius:2px;
  background:var(--bone);
  transition:transform .24s var(--ease),top .24s var(--ease),background .2s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{top:8px}
[data-header][data-open] .nav-toggle{border-color:var(--neon);color:var(--neon)}
[data-header][data-open] .nav-toggle-bars::before{top:4px;transform:rotate(45deg);background:var(--neon)}
[data-header][data-open] .nav-toggle-bars::after{top:4px;transform:rotate(-45deg);background:var(--neon)}

/* 数据带 */
.header-strip{
  border-top:1px solid rgba(34,48,79,.9);
  background:linear-gradient(90deg,rgba(226,118,46,.14) 0%,rgba(10,16,32,0) 46%,rgba(55,242,201,.08) 100%);
  max-height:36px;
  overflow:hidden;
  transition:max-height .28s var(--ease),opacity .22s var(--ease),border-color .28s var(--ease);
}
.strip-inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,3vw,36px);
  height:36px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--mist);
  white-space:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.strip-inner::-webkit-scrollbar{display:none}
.strip-item{display:inline-flex;align-items:baseline;gap:6px}
.strip-value{color:var(--bone);font-weight:700;font-size:13px}
.strip-note{margin-left:auto;color:var(--brand-lift);letter-spacing:.14em}
[data-header][data-scrolled] .header-strip{
  max-height:0;
  opacity:0;
  border-top-color:transparent;
}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.03em;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             color var(--dur) var(--ease),border-color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{
  background:linear-gradient(140deg,var(--brand-lift),var(--brand));
  color:#1A0D03;
  box-shadow:0 10px 24px rgba(226,118,46,.28);
}
.btn--primary:hover{box-shadow:0 16px 34px rgba(226,118,46,.42)}
.btn--ghost{
  border-color:var(--ink-600);
  background:rgba(19,28,51,.6);
  color:var(--bone);
}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn--neon{background:var(--neon);color:#04140F}
.btn--neon:hover{box-shadow:0 14px 30px rgba(55,242,201,.32)}
.section--bone .btn--ghost{
  border-color:rgba(10,16,32,.22);
  background:transparent;
  color:var(--ink-900);
}
.section--bone .btn--ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 7. 卡片与 Bento 网格 ---------- */
.card{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--ink-600);
  border-radius:var(--r-xl);
  padding:clamp(20px,2.6vw,30px);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 24px 46px rgba(4,8,18,.5);
  border-color:rgba(55,242,201,.4);
}
.card--bone{
  background:var(--bone);
  color:var(--ink-900);
  border-color:rgba(10,16,32,.12);
}
.card--bone:hover{border-color:rgba(226,118,46,.5)}

.bento-grid{
  display:grid;
  gap:clamp(14px,1.7vw,22px);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.bento-grid > *{grid-column:span 12}
@media (min-width:760px){
  .bento-grid > .span-3{grid-column:span 3}
  .bento-grid > .span-4{grid-column:span 4}
  .bento-grid > .span-5{grid-column:span 5}
  .bento-grid > .span-6{grid-column:span 6}
  .bento-grid > .span-7{grid-column:span 7}
  .bento-grid > .span-8{grid-column:span 8}
  .bento-grid > .span-9{grid-column:span 9}
  .bento-grid > .span-12{grid-column:span 12}
}

/* ---------- 8. 主题筛选 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:clamp(18px,2.4vw,28px);
}
.filter-chip{
  padding:9px 16px;
  border-radius:var(--pill);
  border:1px solid var(--ink-600);
  background:rgba(19,28,51,.7);
  color:rgba(243,239,230,.8);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.filter-chip:hover{border-color:var(--neon-soft);color:var(--neon-soft)}
.filter-chip.is-active,
.filter-chip[aria-pressed="true"]{
  background:var(--neon);
  border-color:var(--neon);
  color:#04140F;
}
.filter-stage{display:grid;gap:clamp(14px,1.7vw,22px)}
[data-tags][hidden]{display:none !important}
.filter-empty{
  padding:26px 24px;
  border:1px dashed var(--ink-600);
  border-radius:var(--r-lg);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--mist);
  text-align:center;
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  padding-block:20px 6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--mist);
}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb-list li{display:inline-flex;align-items:center}
.breadcrumb-list li:not(:first-child)::before{
  content:"／";
  margin-right:8px;
  color:var(--ink-600);
}
.breadcrumb-list a{transition:color .2s var(--ease)}
.breadcrumb-list a:hover{color:var(--neon)}
.breadcrumb-list [aria-current="page"]{color:var(--bone)}

/* ---------- 10. 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid var(--ink-600);
  background:linear-gradient(145deg,var(--ink-800),var(--ink-900));
  aspect-ratio:4/3;
}
.media-frame img,
.media-frame svg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.media-frame:hover img{transform:scale(1.03)}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(226,118,46,.16) 0%,transparent 42%,rgba(55,242,201,.12) 100%);
  mix-blend-mode:screen;
  pointer-events:none;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--bone{background:var(--sand);border-color:rgba(10,16,32,.14)}

/* ---------- 11. 数据表格 ---------- */
.data-table{
  width:100%;
  border-collapse:collapse;
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:14px;
}
.data-table caption{
  text-align:left;
  padding-bottom:12px;
  font-family:var(--font-body);
  font-size:13px;
  color:var(--mist);
}
.data-table th,
.data-table td{
  padding:13px 14px;
  text-align:left;
  border-bottom:1px solid var(--ink-600);
}
.data-table thead th{
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--neon-soft);
  white-space:nowrap;
}
.data-table tbody tr{transition:background .2s var(--ease)}
.data-table tbody tr:hover{background:rgba(55,242,201,.07)}
.section--bone .data-table th,
.section--bone .data-table td{border-bottom-color:rgba(10,16,32,.14)}
.section--bone .data-table thead th{color:#3F6B5E}

/* ---------- 12. 入场显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  background:var(--ink-900);
  color:var(--bone);
  border-top:1px solid var(--ink-600);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-30%;
  right:-12%;
  width:min(620px,84vw);
  height:min(620px,84vw);
  background:radial-gradient(circle,rgba(226,118,46,.16) 0%,rgba(226,118,46,0) 66%);
  pointer-events:none;
}
.footer-beam{
  height:6px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--brand-lift) 16%,var(--ink-600) 48%,var(--neon) 100%);
  opacity:.9;
}
.footer-shell{
  position:relative;
  z-index:1;
  padding-block:clamp(40px,5.6vw,72px) clamp(26px,3.4vw,46px);
}
.footer-brandrow{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:14px 26px;
  padding-bottom:26px;
  border-bottom:1px dashed var(--ink-600);
}
.brand--footer .brand-mark{width:40px;height:40px}
.brand--footer .brand-name{font-size:20px}
.footer-sign{
  font-family:var(--font-serif);
  font-size:clamp(17px,2.2vw,24px);
  line-height:1.5;
  letter-spacing:.02em;
  color:var(--sand);
}
.footer-grid{
  display:grid;
  grid-template-columns:0.9fr 1.05fr 1.4fr 1fr;
  gap:clamp(22px,3vw,44px);
  padding-top:clamp(28px,3.6vw,46px);
}
.footer-col-title{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--neon-soft);
}
.footer-col-title::before{
  content:"";
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--neon);
  flex:0 0 auto;
}
.footer-links li + li{margin-top:9px}
.footer-links a{
  display:inline-flex;
  align-items:center;
  font-size:14.5px;
  color:rgba(243,239,230,.74);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:var(--neon);transform:translateX(3px)}
.footer-contact dt{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--mist);
  margin-bottom:4px;
}
.footer-contact dd{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:13.5px;
  line-height:1.7;
  color:var(--bone);
  word-break:break-word;
}
.footer-note{
  margin-bottom:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--mist);
}
.footer-note--mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--neon-soft);
}
.footer-base{
  position:relative;
  z-index:1;
  border-top:1px solid var(--ink-600);
  background:rgba(19,28,51,.62);
}
.footer-base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 26px;
  padding-block:18px;
}
.footer-copy{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:10px 20px}
.footer-legal a{
  font-size:13px;
  color:rgba(243,239,230,.74);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-legal a:hover{color:var(--neon);border-bottom-color:var(--neon)}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1280px){
  .brand-code{display:none}
}
@media (max-width:1080px){
  :root{--hdr:70px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:none;
    padding:12px clamp(18px,4vw,40px) 22px;
    background:linear-gradient(180deg,var(--ink-800),var(--ink-900));
    border-top:1px solid var(--ink-600);
    border-bottom:1px solid rgba(55,242,201,.45);
    box-shadow:0 28px 52px rgba(4,8,18,.6);
  }
  [data-header][data-open] .main-nav,
  [data-open] .main-nav{
    display:block;
    animation:navdrop .24s var(--ease) both;
  }
  @keyframes navdrop{
    from{opacity:0;transform:translateY(-10px)}
    to{opacity:1;transform:none}
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{
    display:block;
    padding:13px 14px;
    font-size:16px;
    border-radius:var(--r-md);
  }
  .nav-link[aria-current="page"]::after{
    left:14px;
    top:50%;
    bottom:auto;
    width:3px;
    height:18px;
    margin:-9px 0 0;
    border-radius:2px;
  }
  .header-rail{margin-left:auto}
  .header-strip{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  body{font-size:16px}
  .brand-tag{display:none}
  .search-pill{padding:9px 13px}
  .nav-toggle{padding:9px 13px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-base-inner{justify-content:flex-start}
  .breadcrumb{padding-top:14px}
}
@media (max-width:420px){
  .search-pill-text{display:none}
  .search-pill{padding:9px 11px}
}

/* ---------- 15. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important}
  .media-frame:hover img{transform:none}
}