/* ============================================================
   悟空体育 · 共享站点样式 /assets/site.css
   结构：变量 → 重置 → 中文排版 → 通用组件 → 头部 → 页脚 → 响应式
   ============================================================ */

:root{
  --orange:#FF5A1F;
  --orange-soft:#FF8A5C;
  --ink:#0B1B33;
  --ink-deep:#050D1A;
  --paper:#F6F2E9;
  --panel:#14294A;
  --grass:#2FBF71;
  --cyan:#1FE0C8;
  --yellow:#FFC542;
  --red:#E5484D;
  --mist:#93A4BC;
  --line:rgba(147,164,188,.22);
  --line-strong:rgba(147,164,188,.42);
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,"SF Mono",Menlo,Consolas,"Courier New",monospace;
  --rail:96px;
  --bar:60px;
  --maxw:1280px;
  --spring:160ms cubic-bezier(.2,.8,.2,1);
  --ease:cubic-bezier(.2,.8,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:var(--bar) 0 0 var(--rail);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  min-height:100vh;
}
img,picture,svg,video{display:block;max-width:100%}
img{height:auto}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding-left:1.2em}
a{color:var(--paper);text-decoration:none;transition:color var(--spring)}
main{display:block;scroll-margin-top:calc(var(--bar) + 16px)}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{
  margin:0;
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.02em;
  text-wrap:balance;
}
h1{font-size:clamp(38px,6vw,76px)}
h2{font-size:clamp(26px,3.6vw,42px)}
h3{font-size:clamp(20px,2.2px + 1.6vw,26px);letter-spacing:-.01em}
h4{font-size:17px;letter-spacing:0}
p{margin:0;max-width:68ch}
strong{font-weight:800;color:var(--yellow)}
::selection{background:var(--orange);color:var(--ink-deep)}

:focus-visible{
  outline:2px solid var(--orange);
  outline-offset:3px;
  border-radius:2px;
}
.btn--primary:focus-visible,
.chip[aria-pressed="true"]:focus-visible{outline-color:var(--paper)}

/* ---------- 通用工具 ---------- */
.mono{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:.02em;
}
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.wrap--narrow{max-width:760px}
.section{padding:64px 0}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper h1,.section--paper h2,.section--paper h3{color:var(--ink-deep)}
.section--paper a{color:var(--ink)}
.section--paper a:hover{color:var(--orange)}
.section--deep{background:var(--ink-deep)}
.section--panel{background:var(--panel)}
.display{
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1.02;
  transform:skewX(-3deg);
  transform-origin:left bottom;
}
.lede{font-size:clamp(16px,1.4vw,19px);line-height:1.8;color:var(--mist);max-width:56ch}
.section--paper .lede{color:#3C4C66}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--orange);
}
.annot{
  writing-mode:vertical-rl;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--mist);
}
.score{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  letter-spacing:-.03em;
  line-height:.86;
}
.num{
  display:block;
  font-family:var(--mono);
  font-size:clamp(56px,9vw,120px);
  font-weight:700;
  line-height:.8;
  letter-spacing:-.04em;
  color:var(--orange);
}
@supports (-webkit-text-stroke:1px #000){
  .num{color:transparent;-webkit-text-stroke:1.5px var(--orange)}
}
.num--solid{color:var(--orange)}
@supports (-webkit-text-stroke:1px #000){
  .num--solid{color:var(--orange);-webkit-text-stroke:0}
}

/* ---------- 网格 ---------- */
.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
.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}
.span-12{grid-column:span 12}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 18px;
  border:1px solid transparent;
  border-radius:3px;
  background:none;
  color:var(--paper);
  font-family:var(--sans);
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:background var(--spring),color var(--spring),border-color var(--spring),transform var(--spring);
}
.btn--primary{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink-deep);
  box-shadow:2px 2px 0 rgba(5,13,26,.55);
}
.btn--primary:hover{background:var(--yellow);border-color:var(--yellow);color:var(--ink-deep)}
.btn--ghost{border-color:var(--line-strong);color:var(--paper)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:8px 13px;font-size:12px;letter-spacing:.06em}

/* ---------- 标签 / 面板 / 卡片 ---------- */
.tag{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:6px 16px;
  background:var(--paper);
  color:var(--ink-deep);
  font-size:11px;
  font-weight:800;
  letter-spacing:.18em;
  line-height:1.6;
  border-radius:2px;
  white-space:nowrap;
}
.tag::before,.tag::after{
  content:"";
  position:absolute;
  top:50%;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--ink);
  transform:translateY(-50%);
}
.tag::before{left:-5px}
.tag::after{right:-5px}
.tag--orange{background:var(--orange);color:var(--ink-deep)}
.tag--orange::before,.tag--orange::after{background:var(--ink-deep)}

.panel{
  position:relative;
  padding:24px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:4px;
}
.panel--paper{background:var(--paper);color:var(--ink-deep);border-color:rgba(11,27,51,.14)}

.frame{position:relative;padding:24px;border:1px dashed var(--line-strong);border-radius:2px}
.frame::before,.frame::after{
  content:"";
  position:absolute;
  width:14px;height:14px;
  border:2px solid var(--orange);
}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.frame::after{bottom:-1px;right:-1px;border-left:0;border-top:0}

.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--paper);
  font-family:var(--sans);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
  transition:background var(--spring),color var(--spring),border-color var(--spring);
}
.chip:hover{border-color:var(--cyan);color:var(--cyan)}
.chip[aria-pressed="true"],.chip.is-active{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink-deep);
}

.rule,hr{
  height:0;
  border:0;
  border-top:1px dashed var(--line-strong);
  margin:32px 0;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:24px 0;font-size:12px;letter-spacing:.1em;color:var(--mist)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(147,164,188,.5)}
.breadcrumb a{color:var(--mist);border-bottom:1px dashed transparent}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--paper);font-weight:700}

/* ---------- 折叠面板基础 ---------- */
.acc-item{border-bottom:1px dashed var(--line-strong)}
.acc-trigger{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:18px 4px;
  background:none;
  border:0;
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  font-weight:800;
  text-align:left;
  cursor:pointer;
  transition:color var(--spring);
}
.acc-trigger:hover{color:var(--orange)}
.acc-trigger .acc-index{font-family:var(--mono);font-size:12px;color:var(--orange);letter-spacing:.08em}
.acc-trigger .acc-sign{margin-left:auto;font-family:var(--mono);color:var(--mist);transition:transform 200ms var(--ease)}
.acc-trigger[aria-expanded="true"] .acc-sign{transform:rotate(45deg);color:var(--orange)}
.acc-panel{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--mist)}

/* ---------- 图片容器基础（页面阶段放置图片） ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:4px;
}
.media > img,.media > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 220ms var(--ease);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(5,13,26,0) 40%,rgba(5,13,26,.78) 100%);
}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--slice{clip-path:polygon(0 0,100% 0,100% 86%,0 100%)}
.media__tag{
  position:absolute;
  left:14px;
  bottom:14px;
  z-index:1;
  padding:5px 12px;
  background:var(--paper);
  color:var(--ink-deep);
  font-size:11px;
  font-weight:800;
  letter-spacing:.16em;
  border-radius:2px;
}

.tex{
  position:relative;
}
.tex::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.06;
  background-image:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 3px);
}

/* ============================================================
   头部
   ============================================================ */
.site-header{
  position:fixed;
  inset:0;
  z-index:120;
  pointer-events:none;
  font-size:14px;
}
.site-header a,
.site-header button{pointer-events:auto}

/* 跳转链接 */
.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:200;
  padding:10px 18px;
  background:var(--paper);
  color:var(--ink-deep);
  font-weight:800;
  font-size:13px;
  letter-spacing:.06em;
  border-radius:3px;
  box-shadow:0 6px 18px rgba(5,13,26,.5);
  transform:translateY(-180%);
  transition:transform var(--spring);
}
.skip-link:focus-visible,.skip-link:focus{transform:translateY(0)}

/* 左侧品牌轨道 */
.brand-rail{
  position:absolute;
  left:0;top:0;bottom:0;
  width:var(--rail);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:18px;
  padding:16px 0 20px;
  background:var(--ink-deep);
  border-right:1px solid var(--line);
  pointer-events:auto;
}
.brand-rail::after{
  content:"";
  position:absolute;
  top:0;right:-1px;bottom:0;
  width:1px;
  background:repeating-linear-gradient(180deg,rgba(255,90,31,.55) 0 8px,transparent 8px 16px);
}
.brand-lockup{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  text-decoration:none;
  color:var(--paper);
}
.brand-seal{
  display:grid;
  place-items:center;
  width:44px;height:44px;
  background:var(--orange);
  color:var(--ink-deep);
  font-size:20px;
  font-weight:900;
  line-height:1;
  border-radius:3px;
  transform:rotate(-4deg);
  box-shadow:0 0 0 2px var(--ink-deep),0 0 0 3px rgba(255,90,31,.4);
  transition:background var(--spring),color var(--spring);
}
.brand-lockup:hover .brand-seal{background:var(--yellow);color:var(--ink-deep)}
.brand-word{
  writing-mode:vertical-rl;
  font-size:15px;
  font-weight:900;
  letter-spacing:.24em;
  line-height:1;
}
.brand-motto{
  writing-mode:vertical-rl;
  font-size:11px;
  font-weight:600;
  letter-spacing:.3em;
  color:var(--orange-soft);
  line-height:1;
}
.rail-rule{
  flex:1 1 auto;
  width:1px;
  min-height:24px;
  background:repeating-linear-gradient(180deg,var(--line-strong) 0 5px,transparent 5px 11px);
}
.rail-stamp{
  writing-mode:vertical-rl;
  padding:10px 5px;
  border:1px dashed var(--line-strong);
  border-radius:2px;
  font-size:10px;
  font-weight:700;
  letter-spacing:.14em;
  line-height:1.5;
  color:var(--mist);
  font-variant-numeric:tabular-nums;
}

/* 顶部命令栏 */
.command-bar{
  position:absolute;
  top:0;left:var(--rail);right:0;
  height:var(--bar);
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 18px 0 22px;
  background:rgba(11,27,51,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  pointer-events:auto;
}
.command-bar::after{
  content:"";
  position:absolute;
  left:0;bottom:-1px;
  width:var(--progress,0%);
  height:2px;
  background:linear-gradient(90deg,var(--orange),var(--yellow));
  transition:width 80ms linear;
  pointer-events:none;
}

.command-status{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  max-width:none;
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--mist);
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.command-status__dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--grass);
  box-shadow:0 0 0 3px rgba(47,191,113,.18);
  flex:0 0 auto;
}

.command-nav{flex:1 1 auto;min-width:0}
.command-nav ul{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.command-nav a{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:6px;
  padding:10px 11px;
  color:var(--paper);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:color var(--spring);
}
.command-nav a::after{
  content:"";
  position:absolute;
  left:11px;right:11px;bottom:4px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--spring);
}
.command-nav a:hover{color:var(--cyan)}
.command-nav a:hover::after{transform:scaleX(1)}
.command-nav .nav-index{
  font-family:var(--mono);
  font-size:10px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--mist);
  transition:color var(--spring);
}
.command-nav a[aria-current="page"]{color:var(--orange)}
.command-nav a[aria-current="page"] .nav-index{color:var(--orange)}
.command-nav a[aria-current="page"]::after{
  background:var(--orange);
  transform:scaleX(1);
}

.command-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:3px;
  color:var(--paper);
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color var(--spring),color var(--spring);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange)}
.nav-toggle__bars{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  width:18px;
  height:12px;
  flex:0 0 auto;
}
.nav-toggle__bars i{
  display:block;
  height:2px;
  width:100%;
  background:currentColor;
  transition:transform var(--spring),opacity var(--spring);
}
.site-header[data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  color:var(--paper);
  border-top:1px solid var(--line);
  padding:56px 24px 28px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:6px;
  background-image:repeating-linear-gradient(90deg,var(--orange) 0 10px,transparent 10px 20px);
  opacity:.4;
  z-index:1;
}
.site-footer::after{
  content:"WUKONG";
  position:absolute;
  right:-8px;
  bottom:-28px;
  z-index:0;
  font-family:var(--mono);
  font-size:clamp(72px,16vw,190px);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,90,31,.16);
  pointer-events:none;
  user-select:none;
}
@supports not (-webkit-text-stroke:1px #000){
  .site-footer::after{display:none}
}

.footer-inner{
  position:relative;
  z-index:2;
  max-width:var(--maxw);
  margin:0 auto;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);
  gap:40px;
  align-items:start;
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.footer-seal{
  display:grid;
  place-items:center;
  width:52px;height:52px;
  margin-bottom:6px;
  background:var(--orange);
  color:var(--ink-deep);
  font-size:24px;
  font-weight:900;
  line-height:1;
  border-radius:3px;
  transform:rotate(-4deg);
  box-shadow:0 0 0 2px var(--ink-deep),0 0 0 3px rgba(255,90,31,.4);
}
.footer-brand__name{
  max-width:none;
  font-size:20px;
  font-weight:900;
  letter-spacing:.08em;
  line-height:1.3;
}
.footer-tagline{
  max-width:none;
  margin-top:2px;
  font-size:clamp(24px,3.4vw,38px);
  font-weight:900;
  letter-spacing:-.01em;
  line-height:1.12;
  transform:skewX(-3deg);
  transform-origin:left bottom;
}
.footer-brand__note{
  max-width:32ch;
  margin-top:8px;
  font-size:12px;
  line-height:1.8;
  letter-spacing:.08em;
  color:var(--mist);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.footer-col__title{
  margin-bottom:12px;
  font-size:11px;
  font-weight:800;
  letter-spacing:.22em;
  color:var(--orange);
}
.footer-col__list{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin:0;
  padding:0;
  list-style:none;
}
.footer-col__list a{
  position:relative;
  display:inline-block;
  padding-bottom:2px;
  font-size:14px;
  font-weight:600;
  color:var(--paper);
  transition:color var(--spring);
}
.footer-col__list a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--spring);
}
.footer-col__list a:hover{color:var(--cyan)}
.footer-col__list a:hover::after{transform:scaleX(1)}

.footer-contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:24px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px dashed var(--line-strong);
}
.contact-item{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:6px;
}
.contact-item--wide{grid-column:1/-1}
.contact-item__label{
  font-size:11px;
  font-weight:800;
  letter-spacing:.2em;
  color:var(--mist);
}
.contact-item__value{
  max-width:none;
  font-size:15px;
  line-height:1.7;
  color:var(--paper);
  word-break:break-word;
}
.copy-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:2px;
  padding:5px 12px;
  background:transparent;
  border:1px dashed rgba(31,224,200,.5);
  border-radius:2px;
  color:var(--cyan);
  font-size:11px;
  font-weight:800;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background var(--spring),color var(--spring),border-color var(--spring);
}
.copy-btn:hover{background:rgba(31,224,200,.12)}
.copy-btn.is-copied{
  background:var(--grass);
  border-color:var(--grass);
  border-style:solid;
  color:var(--ink-deep);
}
.footer-note{
  grid-column:1/-1;
  max-width:64ch;
  padding-left:14px;
  border-left:2px solid var(--orange);
  font-size:13px;
  line-height:1.85;
  color:var(--mist);
}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:32px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.footer-legal{
  max-width:none;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--mist);
}
.footer-mark{
  max-width:none;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.16em;
  color:rgba(147,164,188,.75);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1199px){
  .command-status{display:none}
  .command-actions .btn--ghost{display:none}
}

/* 平板与手机：轨道转顶部条，命令栏沉底 */
@media (max-width:1023px){
  body{padding:56px 0 68px}

  .brand-rail{
    position:fixed;
    top:0;left:0;right:0;bottom:auto;
    width:auto;
    height:56px;
    flex-direction:row;
    align-items:center;
    gap:12px;
    padding:0 14px;
    border-right:0;
    border-bottom:1px solid var(--line);
    background:rgba(5,13,26,.96);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }
  .brand-rail::after{display:none}
  .brand-lockup{flex-direction:row;align-items:center;gap:10px}
  .brand-seal{width:32px;height:32px;font-size:15px;box-shadow:0 0 0 1px var(--ink-deep),0 0 0 2px rgba(255,90,31,.35)}
  .brand-word{writing-mode:horizontal-tb;font-size:15px;letter-spacing:.14em}
  .brand-motto,.rail-rule,.rail-stamp{display:none}

  .command-bar{
    position:fixed;
    top:auto;bottom:0;left:0;right:0;
    height:auto;
    min-height:56px;
    flex-wrap:nowrap;
    align-items:stretch;
    gap:0;
    padding:0;
    background:var(--ink-deep);
    border-top:1px solid var(--line);
    border-bottom:0;
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .command-bar::after{top:-2px;bottom:auto;height:2px}
  .command-status{display:none}

  .nav-toggle{
    display:inline-flex;
    order:-1;
    height:56px;
    padding:0 14px;
    border:0;
    border-right:1px dashed var(--line-strong);
    border-radius:0;
    flex:0 0 auto;
  }

  .command-nav{
    order:0;
    flex:1 1 auto;
    min-width:0;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .command-nav::-webkit-scrollbar{display:none}
  .command-nav ul{flex-direction:row;gap:0;padding:0 6px;height:100%;align-items:center}
  .command-nav a{padding:9px 10px;font-size:13px}
  .command-nav a::after{left:10px;right:10px;bottom:2px}
  .command-nav .nav-index{display:none}
  .command-actions{display:none}

  /* 展开态：命令栏向上展开为整列索引 */
  .site-header[data-open] .command-bar{
    flex-direction:column;
    align-items:stretch;
    max-height:82vh;
    overflow-y:auto;
    padding-bottom:16px;
    background:var(--ink-deep);
    box-shadow:0 -20px 48px rgba(0,0,0,.55);
  }
  .site-header[data-open] .command-bar::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:-1;
    background:rgba(5,13,26,.66);
  }
  .site-header[data-open] .nav-toggle{
    order:0;
    width:100%;
    height:56px;
    justify-content:flex-start;
    border-right:0;
    border-bottom:1px dashed var(--line-strong);
  }
  .site-header[data-open] .command-status{
    display:flex;
    order:1;
    padding:14px 16px 6px;
  }
  .site-header[data-open] .command-nav{
    order:2;
    width:100%;
    overflow:visible;
  }
  .site-header[data-open] .command-nav ul{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:0 10px;
  }
  .site-header[data-open] .command-nav a{
    width:100%;
    padding:13px 12px;
    font-size:16px;
    border-bottom:1px dashed var(--line);
  }
  .site-header[data-open] .command-nav .nav-index{display:inline}
  .site-header[data-open] .command-nav a[aria-current="page"]{
    background:rgba(255,90,31,.1);
    box-shadow:inset 3px 0 0 var(--orange);
  }
  .site-header[data-open] .command-actions{
    display:flex;
    order:3;
    flex-direction:column;
    gap:10px;
    padding:16px 16px 0;
  }
  .site-header[data-open] .command-actions .btn,
  .site-header[data-open] .command-actions .btn--ghost{
    display:inline-flex;
    width:100%;
    padding:13px 16px;
  }

  .footer-top{grid-template-columns:1fr;gap:32px}
  .section{padding:48px 0}
}

@media (max-width:860px){
  .grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
  .span-4,.span-5,.span-6,.span-7,.span-8{grid-column:1/-1}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}
}

@media (max-width:639px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .section{padding:40px 0}
  .site-footer{padding:44px 16px 24px}
  .footer-contact{grid-template-columns:1fr;gap:20px}
  .footer-base{flex-direction:column;align-items:flex-start;gap:8px}
  .panel{padding:18px}
  .frame{padding:18px}
  .num{font-size:clamp(44px,14vw,72px)}
}

/* 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;
    scroll-behavior:auto !important;
  }
  .command-bar::after{transition:none}
  .command-nav a::after,
  .footer-col__list a::after{transition:none}
  .media > img,.media > picture > img{transition:none}
}