/* =========================================================
   360体育站 · 共享样式 /assets/site.css
   夜间球场 × 数据终端：墨绿底、荧光青强调、黄红点缀
   ========================================================= */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
::selection{background:var(--cyan);color:var(--ink)}

/* ---------- 2. tokens ---------- */
:root{
  --ink:#06120F;
  --panel:#0B1F1A;
  --line:#123028;
  --cyan:#35F0D0;
  --red:#E63946;
  --yellow:#FFC93C;
  --stone:#C9CFC7;
  --bone:#F3F1E7;
  --press:#0E6B5C;

  --rail-w:236px;
  --topbar-h:56px;
  --strip-h:30px;
  --strip-space:30px;
  --shell:1220px;

  --ease:cubic-bezier(.2,.7,.3,1);

  --font-body:"Source Han Sans SC","Noto Sans CJK SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-display:"Source Han Sans SC","Noto Sans CJK SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- 3. 中文排版基线 ---------- */
body{
  background:var(--ink);
  color:var(--bone);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  overflow-x:hidden;
  word-break:break-word;
  -webkit-font-smoothing:antialiased;
  padding-left:var(--rail-w);
  padding-top:var(--strip-space);
  transition:padding-left .28s var(--ease),padding-top .3s var(--ease);
}
body[data-rail="mini"]{--rail-w:88px}
body[data-strip="hidden"]{--strip-space:0px}

h1,h2,h3,h4{line-height:1.2;font-weight:800;color:var(--bone);letter-spacing:-.02em}
b,strong{font-weight:700;color:var(--bone)}
time{font-variant-numeric:tabular-nums}

.display{
  font-family:var(--font-display);
  font-size:clamp(40px,7vw,96px);
  font-weight:900;
  line-height:1.02;
  letter-spacing:-.035em;
}
.display--thin{font-weight:200;letter-spacing:-.012em}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 4. 布局工具 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
.shell--wide{max-width:1440px}
.section{padding-block:clamp(44px,6vw,92px)}
.section--panel{background:var(--panel)}
.section--cut{clip-path:polygon(0 2.2rem,100% 0,100% 100%,0 100%)}

.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px 28px;margin-bottom:clamp(20px,3vw,36px);
}
.section-head__title{font-size:clamp(28px,4vw,52px);font-weight:900;letter-spacing:-.03em;line-height:1.06}
.section-head__note{font-size:14.5px;color:var(--stone);max-width:34em;line-height:1.7}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,26px)}

/* ---------- 5. 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border:2px solid var(--cyan);background:transparent;color:var(--bone);
  font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1.2;
  box-shadow:6px 6px 0 0 rgba(53,240,208,.26);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:9px 9px 0 0 rgba(53,240,208,.32)}
.btn:active{transform:translate(0,0);box-shadow:3px 3px 0 0 rgba(53,240,208,.3)}
.btn--primary{background:var(--cyan);color:var(--ink);box-shadow:6px 6px 0 0 var(--line)}
.btn--primary:hover{box-shadow:9px 9px 0 0 var(--line)}
.btn--alert{border-color:var(--red);box-shadow:6px 6px 0 0 rgba(230,57,70,.28)}
.btn--alert:hover{box-shadow:9px 9px 0 0 rgba(230,57,70,.34)}
.btn--ghost{border-color:var(--line);color:var(--stone);box-shadow:6px 6px 0 0 rgba(18,48,40,.9)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--bone);box-shadow:9px 9px 0 0 rgba(18,48,40,.95)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;flex:none;background:var(--cyan)}

.index-tag{
  display:inline-flex;align-items:center;justify-content:center;min-width:34px;padding:3px 9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;line-height:1.4;
  color:var(--ink);background:var(--yellow);
  clip-path:polygon(0 0,100% 0,100% 72%,88% 100%,0 100%);
}
.index-tag--cyan{background:var(--cyan)}
.index-tag--red{background:var(--red);color:var(--bone)}

/* ---------- 6. 内容组件 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-block:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--stone);
}
.breadcrumb__sep{color:var(--line)}
.breadcrumb__current{color:var(--cyan)}
.breadcrumb a{border-bottom:1px solid transparent;transition:color .16s var(--ease),border-color .16s var(--ease)}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

.prose{max-width:44em;font-size:16.5px;line-height:1.78;color:var(--stone)}
.prose > * + *{margin-top:1.1em}
.prose h2{font-size:clamp(22px,3vw,30px);color:var(--bone);letter-spacing:-.02em}
.prose h3{font-size:19px;color:var(--bone)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(53,240,208,.4);transition:border-color .16s var(--ease)}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose ul{display:flex;flex-direction:column;gap:.55em}
.prose li{position:relative;padding-left:1.35em}
.prose li::before{content:"";position:absolute;left:0;top:.75em;width:9px;height:2px;background:var(--yellow)}
.prose blockquote{border-left:3px solid var(--cyan);padding-left:1em;color:var(--bone)}

.data-card{
  position:relative;background:var(--panel);border:2px solid var(--line);
  padding:22px 22px 20px;
  box-shadow:8px 8px 0 0 rgba(6,18,15,.92);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.data-card:hover{
  transform:translateY(-4px);
  border-color:var(--cyan);
  box-shadow:12px 14px 0 0 rgba(6,18,15,.96);
}
.data-card__fold{
  position:absolute;top:0;right:0;width:26px;height:26px;background:var(--line);
  clip-path:polygon(0 0,100% 0,100% 100%);
}
.data-card__index{
  display:inline-block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--yellow);
}
.data-card__title{font-size:clamp(19px,2vw,23px);font-weight:800;line-height:1.35;color:var(--bone)}
.data-card__meta{
  margin-top:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--stone);opacity:.7;
}
.data-card__text{margin-top:12px;font-size:15.5px;line-height:1.7;color:var(--stone)}

.score-bar{
  display:flex;align-items:stretch;gap:2px;overflow:hidden;
  border-top:2px solid var(--line);border-bottom:2px solid var(--line);
  background:var(--panel);
}
.score-bar__cell{flex:1 1 0;min-width:0;padding:12px 16px;border-right:2px solid var(--line)}
.score-bar__cell:last-child{border-right:0}
.score-bar__label{
  display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--stone);opacity:.65;
}
.score-bar__value{
  display:block;margin-top:4px;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(20px,3vw,30px);font-weight:700;letter-spacing:.01em;color:var(--bone);
}
.score-bar__value--cyan{color:var(--cyan)}
.score-bar__value--yellow{color:var(--yellow)}
.score-bar__value--red{color:var(--red)}

.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;
  border:2px solid var(--line);
  background:
    linear-gradient(135deg,rgba(53,240,208,.10),rgba(230,57,70,.08)),
    var(--panel);
}
.media-frame::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:repeating-linear-gradient(90deg,rgba(53,240,208,.12) 0 1px,transparent 1px 20px);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--cut{clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
.media-frame__cap{
  position:absolute;left:0;bottom:0;z-index:1;
  padding:6px 12px;background:rgba(6,18,15,.84);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--stone);
}

.accordion{border-top:2px solid var(--line)}
.accordion__item{border-bottom:2px solid var(--line)}
.accordion__trigger{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 4px;text-align:left;font-size:17px;font-weight:700;line-height:1.5;color:var(--bone);
  transition:color .16s var(--ease);
}
.accordion__trigger:hover{color:var(--cyan)}
.accordion__sign{position:relative;flex:none;width:16px;height:16px;margin-top:7px}
.accordion__sign::before,.accordion__sign::after{content:"";position:absolute;background:var(--cyan)}
.accordion__sign::before{left:0;top:7px;width:16px;height:2px}
.accordion__sign::after{left:7px;top:0;width:2px;height:16px;transition:transform .2s var(--ease)}
.accordion__trigger[aria-expanded="true"] .accordion__sign::after{transform:scaleY(0)}
.accordion__panel{padding:0 4px 20px;font-size:15.5px;line-height:1.75;color:var(--stone)}
.accordion__panel[hidden]{display:none}

.tabs__list{display:flex;flex-wrap:wrap;gap:8px}
.tabs__tab{
  padding:8px 14px;border:2px solid var(--line);background:transparent;color:var(--stone);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.tabs__tab:hover{border-color:var(--cyan);color:var(--bone)}
.tabs__tab[aria-selected="true"]{border-color:var(--cyan);background:rgba(53,240,208,.12);color:var(--bone)}
.tabs__panel[hidden]{display:none}

/* ---------- 7. 头部 ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.12em;
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--rail-w);
  display:grid;
  grid-template-columns:minmax(0,1fr);
  grid-template-rows:auto minmax(0,1fr);
  grid-template-areas:"brand" "nav";
  background:var(--panel);
  border-right:2px solid var(--line);
  z-index:60;
  transition:width .28s var(--ease);
}
.site-header::after{
  content:"";position:fixed;inset:0;z-index:75;
  background:rgba(6,18,15,.74);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
}

.live-strip{
  position:fixed;top:0;left:var(--rail-w);right:0;height:var(--strip-h);z-index:55;
  display:flex;align-items:center;gap:12px;
  padding:0 18px;
  background:linear-gradient(90deg,#0B1F1A 0%,#081814 62%,#06120F 100%);
  border-bottom:2px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--stone);
  transition:transform .32s var(--ease),opacity .32s var(--ease),height .24s var(--ease);
}
.live-strip[data-collapsed="true"]{opacity:0;pointer-events:none;transform:translateY(-100%)}
.live-strip__dot{
  flex:none;width:8px;height:8px;background:var(--cyan);
  box-shadow:0 0 0 3px rgba(53,240,208,.16);
  animation:stripPulse 2.4s var(--ease) infinite;
}
@keyframes stripPulse{0%,100%{opacity:1}50%{opacity:.32}}
.live-strip__item{white-space:nowrap}
.live-strip__value{font-weight:700;color:var(--yellow)}
.live-strip__sep{flex:none;width:1px;height:12px;background:var(--line)}
.live-strip__hint{margin-left:auto;color:var(--stone);opacity:.5}

.rail-brand{
  grid-area:brand;
  display:flex;align-items:center;gap:11px;
  min-height:64px;padding:14px 16px;
  border-bottom:2px solid var(--line);
}
.rail-brand__mark{
  position:relative;flex:none;width:34px;height:34px;
  border:2px solid var(--cyan);background:#0A2A24;
  transform:skewX(-8deg);
}
.rail-brand__mark i{position:absolute;left:6px;right:6px;height:2px;background:var(--cyan)}
.rail-brand__mark i:nth-child(1){top:8px}
.rail-brand__mark i:nth-child(2){top:15px;right:12px}
.rail-brand__mark i:nth-child(3){top:22px;right:17px}
.rail-brand__text{display:flex;flex-direction:column;min-width:0}
.rail-brand__name{font-size:16px;font-weight:900;letter-spacing:.01em;color:var(--bone);white-space:nowrap}
.rail-brand__tag{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  color:var(--stone);opacity:.62;white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:10px;height:var(--topbar-h);padding:0 16px;
  border-left:2px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--stone);
}
.nav-toggle__bars{display:flex;flex-direction:column;gap:4px;width:20px}
.nav-toggle__bars i{display:block;height:2px;background:var(--cyan);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

.rail-nav{
  grid-area:nav;
  display:flex;flex-direction:column;min-height:0;
  padding:16px 0 14px;
  overflow-y:auto;
}
.rail-nav__caption{
  padding:0 18px 12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--stone);opacity:.52;
}
.rail-nav__list{display:flex;flex-direction:column}
.rail-nav__item{display:block}
.rail-nav__link{
  display:flex;align-items:center;gap:12px;
  padding:12px 18px 12px 16px;
  border-left:3px solid transparent;
  color:var(--stone);
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.rail-nav__num{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--yellow);opacity:.66}
.rail-nav__label{font-size:15px;font-weight:500;white-space:nowrap}
.rail-nav__link:hover{color:var(--bone);background:rgba(53,240,208,.07)}
.rail-nav__link:hover .rail-nav__num{opacity:1}
.rail-nav__link[aria-current="page"]{
  border-left-color:var(--cyan);
  background:rgba(53,240,208,.11);
  color:var(--bone);
}
.rail-nav__link[aria-current="page"] .rail-nav__label{font-weight:800}
.rail-nav__link[aria-current="page"] .rail-nav__num{color:var(--cyan);opacity:1}

.rail-foot{
  margin-top:auto;
  display:flex;flex-direction:column;gap:6px;
  padding:14px 16px 4px;
  border-top:2px solid var(--line);
}
.rail-foot__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--stone);opacity:.5;
}
.rail-foot__value{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--stone)}
.rail-foot__dot{flex:none;width:7px;height:7px;background:var(--yellow);box-shadow:0 0 0 3px rgba(255,201,60,.14)}
.rail-foot__btn{
  margin-top:6px;display:inline-flex;align-items:center;justify-content:center;
  padding:8px 10px;border:2px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--stone);
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.rail-foot__btn:hover{border-color:var(--cyan);color:var(--bone);background:rgba(53,240,208,.08)}

body[data-rail="mini"] .rail-brand{justify-content:center;padding-inline:10px}
body[data-rail="mini"] .rail-brand__text,
body[data-rail="mini"] .rail-nav__label,
body[data-rail="mini"] .rail-nav__caption,
body[data-rail="mini"] .rail-foot__label,
body[data-rail="mini"] .rail-foot__value{display:none}
body[data-rail="mini"] .rail-nav__link{justify-content:center;gap:0;padding-inline:0}
body[data-rail="mini"] .rail-foot{padding-inline:10px}
body[data-rail="mini"] .rail-foot__btn{padding:7px 4px;font-size:10px;letter-spacing:.08em}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,120px);
  background:linear-gradient(180deg,var(--panel) 0%,var(--ink) 68%);
  border-top:2px solid var(--line);
  padding-bottom:28px;
}
.footer-ticker{
  height:20px;margin-bottom:clamp(26px,3.4vw,44px);
  border-bottom:2px solid var(--line);
  background-image:repeating-linear-gradient(90deg,rgba(18,48,40,.95) 0 2px,transparent 2px 26px);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(240px,1.5fr) repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,44px);
  padding-block:clamp(6px,1vw,14px) clamp(26px,3vw,42px);
}
.footer-brand__logo{
  display:inline-block;font-size:26px;font-weight:900;letter-spacing:-.02em;color:var(--bone);
  border-bottom:3px solid var(--cyan);padding-bottom:2px;
}
.footer-brand__tag{
  margin-top:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
}
.footer-brand__desc{margin-top:12px;font-size:14.5px;line-height:1.72;color:var(--stone);max-width:30em}
.footer-col{display:block}
.footer-col__title{
  margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--line);
  font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  font-family:var(--font-mono);color:var(--stone);opacity:.68;
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__item{display:block}
.footer-col__link{
  position:relative;display:inline-block;padding-left:14px;
  font-size:15px;color:var(--bone);
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.footer-col__link::before{
  content:"";position:absolute;left:0;top:.74em;width:6px;height:2px;background:var(--cyan);
  transition:width .16s var(--ease);
}
.footer-col__link:hover{color:var(--cyan);padding-left:19px}
.footer-col__link:hover::before{width:11px}
.footer-contact{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px 30px;
  padding:clamp(18px,2.4vw,26px);
  border:2px solid var(--line);border-left:4px solid var(--cyan);
  background:rgba(11,31,26,.72);
}
.footer-contact__line{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;
  padding-bottom:6px;border-bottom:1px dashed rgba(18,48,40,.95);
  font-size:14.5px;color:var(--stone);
}
.footer-contact__line b{font-family:var(--font-mono);font-weight:600;color:var(--bone)}
.footer-contact__note{
  grid-column:1/-1;margin-top:4px;
  font-size:13px;line-height:1.68;color:var(--stone);opacity:.78;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;margin-top:clamp(22px,3vw,36px);padding-top:22px;
  border-top:2px solid var(--line);
}
.footer-legal{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--stone);opacity:.72}
.footer-year{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--stone);opacity:.72}

/* ---------- 9. 返回顶部 / 显现 ---------- */
.to-top{
  position:fixed;right:clamp(14px,3vw,34px);bottom:clamp(14px,3vw,34px);z-index:65;
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 16px;
  background:var(--panel);border:2px solid var(--cyan);color:var(--bone);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  box-shadow:6px 6px 0 0 rgba(53,240,208,.22);
  opacity:0;pointer-events:none;
  transform:translateY(18px) rotate(-3deg);
  transition:opacity .28s var(--ease),transform .28s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.to-top[data-visible="true"]{opacity:1;pointer-events:auto;transform:translateY(0) rotate(-3deg)}
.to-top:hover{transform:translateY(-3px) rotate(-1deg);box-shadow:9px 9px 0 0 rgba(53,240,208,.3)}
.to-top__arrow{
  width:0;height:0;flex:none;
  border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:8px solid var(--cyan);
}
.to-top__text{white-space:nowrap}

.has-js [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.has-js [data-reveal][data-revealed="true"]{opacity:1;transform:none}

/* ---------- 10. 断点 ---------- */
@media (max-width:1079px){
  body{padding-left:0;padding-top:0}
  .site-header{
    position:sticky;top:0;left:auto;right:auto;bottom:auto;
    width:100%;
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-rows:auto var(--topbar-h);
    grid-template-areas:"strip strip" "brand toggle";
    border-right:0;border-bottom:2px solid var(--line);
    background:var(--panel);
    z-index:70;
  }
  .live-strip{
    position:static;inset:auto;grid-area:strip;
    height:var(--strip-h);padding:0 14px;gap:10px;overflow:hidden;
    transition:height .24s var(--ease),opacity .24s var(--ease),padding .24s var(--ease);
  }
  .live-strip[data-collapsed="true"]{
    transform:none;height:0;padding-block:0;border-bottom-width:0;opacity:0;
  }
  .live-strip__hint{display:none}
  .rail-brand{grid-area:brand;min-height:var(--topbar-h);padding:0 14px;border-bottom:0}
  .nav-toggle{grid-area:toggle;display:inline-flex}
  .rail-nav{
    grid-area:auto;
    position:fixed;top:0;left:0;bottom:0;z-index:80;
    width:min(86vw,332px);
    padding:18px 0 16px;
    background:var(--panel);
    border-right:2px solid var(--cyan);
    transform:translateX(-101%);
    transition:transform .3s var(--ease);
    overscroll-behavior:contain;
  }
  .site-header[data-open="true"] .rail-nav{transform:none}
  .site-header[data-open="true"]::after{opacity:1;pointer-events:auto}
  .rail-nav__link{padding:15px 20px}
  .rail-foot{margin-top:auto;padding:16px 20px 4px}
}
@media (max-width:900px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .score-bar{flex-wrap:wrap}
  .score-bar__cell{flex:1 1 46%}
}
@media (max-width:640px){
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr}
  .rail-brand__tag{display:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{padding:10px 13px;font-size:10px;letter-spacing:.12em}
  .score-bar__cell{flex:1 1 100%;border-right:0;border-bottom:2px solid var(--line)}
  .score-bar__cell:last-child{border-bottom:0}
}

/* ---------- 11. 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
}