/* =========================================================
   米兰赛事 · 全站共享样式 /assets/site.css
   赛场夜灯下的数据指挥舱
   ========================================================= */

/* ---------- 1. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--c-volt);outline-offset:3px;border-radius:6px}

/* ---------- 2. 设计令牌 ---------- */
:root{
  --c-black:#0B0D10;
  --c-bay:#16181D;
  --c-rail:#1F232B;
  --c-red:#C8102E;
  --c-ember:#7A0A1D;
  --c-volt:#00E5D0;
  --c-gold:#E8B44A;
  --c-chalk:#F2F4F7;
  --c-mist:#A9B0BC;
  --c-blush:#F6E7EA;
  --c-ink-volt:#0B7A72;

  --rail-w:80px;
  --bar-h:66px;

  --radius-l:18px;
  --radius-m:12px;
  --radius-s:8px;

  --edge:1px solid var(--c-rail);
  --edge-soft:1px solid rgba(242,244,247,.12);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shadow-float:0 24px 60px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,.7,.28,1);
  --pad-x:clamp(16px,3vw,34px);
}

/* ---------- 3. 文档与排版 ---------- */
::selection{background:var(--c-red);color:#fff}
body{
  min-height:100vh;
  padding-top:var(--bar-h);
  background-color:var(--c-black);
  background-image:
    radial-gradient(1000px 560px at 6% -14%, rgba(200,16,46,.24), transparent 60%),
    radial-gradient(840px 480px at 98% 2%, rgba(0,229,208,.12), transparent 58%),
    linear-gradient(180deg,#0B0D10 0%,#101218 46%,#16181D 100%);
  color:var(--c-chalk);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;letter-spacing:-.025em;line-height:1.14}
h1{font-size:clamp(2.6rem,5vw,5.2rem);line-height:1.02}
h2{font-size:clamp(1.6rem,2.6vw,2.2rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.35rem);letter-spacing:-.015em}
strong{font-weight:700;color:var(--c-chalk)}
p a,.prose a{color:var(--c-volt);text-decoration:underline;text-underline-offset:3px}
p a:hover,.prose a:hover{color:var(--c-gold)}

@media (min-width:1080px){
  body{padding-left:var(--rail-w)}
}

/* ---------- 4. 通用工具与基础组件 ---------- */
.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}

.skip-link{
  position:fixed;left:12px;top:-80px;z-index:200;
  padding:10px 18px;border-radius:0 0 12px 12px;
  background:var(--c-gold);color:#14100A;
  font-family:var(--font-mono);font-size:13px;font-weight:600;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

.wrap{width:100%;max-width:1440px;margin-inline:auto;padding-inline:var(--pad-x)}
.section{padding-block:clamp(48px,7vw,96px)}
.eyebrow{
  display:inline-block;
  font-family:var(--font-serif);font-weight:500;
  font-size:13px;letter-spacing:.18em;color:var(--c-gold);
}
.prose{max-width:66ch;font-size:16.5px;line-height:1.78;color:rgba(242,244,247,.86)}
.prose p+p{margin-top:1.1em}
.prose ul{list-style:disc;padding-left:1.25em}
.prose li+li{margin-top:.4em}

.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;font-family:var(--font-mono);font-size:12px;color:var(--c-mist)}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs__item+.breadcrumbs__item::before{content:"/";color:#39404b}
.breadcrumbs__link{color:var(--c-mist);transition:color .2s var(--ease)}
.breadcrumbs__link:hover{color:var(--c-volt)}
.breadcrumbs__current{color:var(--c-chalk)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--split{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
@media (min-width:900px){
  .grid--asym{grid-template-columns:7fr 5fr}
  .grid--asym-b{grid-template-columns:8fr 4fr}
}

.panel{
  border:var(--edge);
  border-radius:var(--radius-l);
  background:var(--c-bay);
  padding:clamp(20px,3vw,34px);
}
.panel--solid{background:var(--c-bay);backdrop-filter:none}
.panel--glass{
  background:rgba(242,244,247,.055);
  border-color:rgba(242,244,247,.14);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-float);
}
.panel--light{background:var(--c-blush);border-color:rgba(11,13,16,.1);color:#241D20}
.panel--light h2,.panel--light h3{color:#120E10}
.panel--light p{color:#3A3134}
.panel--light a{color:var(--c-ink-volt)}

.framed{
  position:relative;
  border:var(--edge);
  border-radius:var(--radius-l);
  padding:clamp(22px,3.2vw,42px);
  background:linear-gradient(150deg,rgba(22,24,29,.92),rgba(11,13,16,.88));
}
.framed::before,
.framed::after{content:"";position:absolute;width:20px;height:20px;pointer-events:none}
.framed::before{top:-1px;left:-1px;border-top:2px solid var(--c-volt);border-left:2px solid var(--c-volt);border-top-left-radius:var(--radius-l)}
.framed::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--c-volt);border-right:2px solid var(--c-volt);border-bottom-right-radius:var(--radius-l)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border:1px solid var(--c-rail);color:var(--c-mist);background:rgba(31,35,43,.5);
}
.tag--live{color:var(--c-volt);border-color:rgba(0,229,208,.42);background:rgba(0,229,208,.08)}
.tag--gold{color:var(--c-gold);border-color:rgba(232,180,74,.42);background:rgba(232,180,74,.08)}

.stat{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

.media-frame{
  position:relative;overflow:hidden;
  border:var(--edge);border-radius:var(--radius-l);
  background:linear-gradient(140deg,#1B1F27,#0B0D10);
  aspect-ratio:16/10;
}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__img{width:100%;height:100%;object-fit:cover}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--c-mist);
  background:linear-gradient(180deg,transparent,rgba(11,13,16,.9));
}

/* 编辑部目录：可展开内容组 */
.accordion{display:grid;gap:10px}
.accordion__item{
  border:var(--edge);border-radius:var(--radius-m);
  background:rgba(22,24,29,.72);
  overflow:hidden;
}
.accordion__trigger{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:16px 18px;text-align:left;
  font-family:var(--font-body);font-size:15.5px;font-weight:500;color:var(--c-chalk);
  cursor:pointer;transition:background .22s var(--ease)
}
.accordion__trigger:hover{background:rgba(0,229,208,.06)}
.accordion__trigger[aria-expanded="true"]{background:rgba(0,229,208,.08)}
.accordion__num{font-family:var(--font-mono);font-size:12px;color:var(--c-volt);flex:none}
.accordion__icon{position:relative;width:14px;height:14px;margin-left:auto;flex:none}
.accordion__icon::before,
.accordion__icon::after{content:"";position:absolute;background:var(--c-mist)}
.accordion__icon::before{top:6px;left:0;width:14px;height:2px}
.accordion__icon::after{left:6px;top:0;width:2px;height:14px;transition:transform .28s var(--ease),opacity .28s var(--ease)}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after{transform:rotate(90deg);opacity:0}
.accordion__panel{height:0;overflow:hidden;transition:height .32s var(--ease)}
.accordion__panel-inner{padding:0 18px 18px;color:var(--c-mist);font-size:15px;line-height:1.75}

/* 显现 */
html[data-ready="true"] [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
html[data-ready="true"] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 5. 头部：品牌轨道 + 命令栏 ---------- */
.site-header{position:relative;z-index:70}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-chalk)}
.brand-mark{
  display:grid;place-items:center;flex:none;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--c-red),var(--c-ember));
  color:#fff;font-family:var(--font-display);font-weight:900;font-size:13.5px;letter-spacing:-.02em;
  box-shadow:0 10px 26px rgba(200,16,46,.34);
}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:15px;letter-spacing:-.02em;white-space:nowrap}
.brand-sub{font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;color:var(--c-mist)}
.brand--compact{display:none}

/* 品牌轨道 */
.brand-rail{
  position:fixed;top:0;left:0;bottom:0;z-index:80;
  width:var(--rail-w);
  display:flex;flex-direction:column;align-items:center;justify-content:space-between;
  gap:18px;padding:18px 0 16px;
  background:linear-gradient(180deg,#16181D,#0B0D10 70%);
  border-right:var(--edge);
}
.brand-rail .brand{flex-direction:column;gap:7px;text-align:center}
.brand-rail .brand-sub{font-size:8px;line-height:1.35;max-width:60px;text-align:center}

.rail-index{position:relative;display:flex;flex-direction:column;gap:4px;width:100%;align-items:center}
.rail-index__item{
  position:relative;width:100%;
  display:flex;flex-direction:column;align-items:center;
  padding:7px 0;
  color:var(--c-mist);
  transition:color .22s var(--ease)
}
.rail-index__item::before{
  content:"";position:absolute;left:0;top:50%;
  width:2px;height:0;background:var(--c-volt);
  transform:translateY(-50%);
  transition:height .24s var(--ease)
}
.rail-index__item:hover{color:var(--c-chalk)}
.rail-index__item[aria-current="page"],
.rail-index__item[data-active="true"]{color:var(--c-chalk)}
.rail-index__item[aria-current="page"]::before,
.rail-index__item[data-active="true"]::before{height:62%}
.rail-index__num{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em}
.rail-index__label{
  position:absolute;left:calc(100% + 10px);top:50%;
  transform:translate(-6px,-50%);
  padding:6px 11px;border-radius:var(--radius-s);
  background:#16181D;border:var(--edge);
  font-family:var(--font-body);font-size:12px;white-space:nowrap;color:var(--c-chalk);
  opacity:0;pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease)
}
.rail-index__item:hover .rail-index__label,
.rail-index__item:focus-visible .rail-index__label{opacity:1;transform:translate(0,-50%)}

.rail-status{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;
  color:var(--c-mist);text-align:center
}
.status-dot{
  width:7px;height:7px;border-radius:50%;flex:none;
  background:var(--c-volt);box-shadow:0 0 0 3px rgba(0,229,208,.16);
  animation:dotPulse 2.6s var(--ease) infinite
}
@keyframes dotPulse{
  0%,100%{box-shadow:0 0 0 2px rgba(0,229,208,.18)}
  50%{box-shadow:0 0 0 6px rgba(0,229,208,.04)}
}

/* 命令栏 */
.command-bar{
  position:fixed;top:0;left:0;right:0;z-index:70;
  height:var(--bar-h);
  background:rgba(11,13,16,.82);
  border-bottom:var(--edge);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .28s var(--ease)
}
@media (min-width:1080px){
  .command-bar{left:var(--rail-w)}
}
.command-bar__inner{
  display:flex;align-items:center;gap:clamp(10px,2vw,28px);
  height:100%;max-width:1440px;margin-inline:auto;padding-inline:var(--pad-x)
}
.command-bar__progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-red),var(--c-volt));
  transition:width .12s linear
}
.site-header[data-condensed="true"] .command-bar{background:rgba(11,13,16,.95)}
.site-header[data-condensed="true"] .command-nav__num{opacity:0;width:0;margin-right:-7px}
.site-header[data-condensed="true"] .command-nav__link{padding:6px 9px;font-size:13.5px}

.command-nav__list{display:flex;align-items:center;gap:clamp(2px,1.2vw,14px)}
.command-nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 11px;border-radius:999px;
  font-size:14px;color:var(--c-mist);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease)
}
.command-nav__link::after{
  content:"";width:6px;height:6px;border-radius:50%;flex:none;
  background:transparent;transition:background .2s var(--ease),box-shadow .2s var(--ease)
}
.command-nav__link:hover{color:var(--c-chalk);background:rgba(242,244,247,.06)}
.command-nav__link[aria-current="page"]{color:var(--c-chalk);background:rgba(0,229,208,.1)}
.command-nav__link[aria-current="page"]::after{background:var(--c-volt);box-shadow:0 0 10px var(--c-volt)}
.command-nav__num{
  display:inline-block;width:18px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:rgba(169,176,188,.72);
  transition:opacity .24s var(--ease),width .24s var(--ease),margin .24s var(--ease)
}
.command-bar__actions{display:flex;align-items:center;gap:10px;margin-left:auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  font-family:var(--font-body);font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease)
}
.btn--primary{
  background:linear-gradient(135deg,var(--c-red),var(--c-ember));
  color:#fff;box-shadow:0 12px 30px rgba(200,16,46,.34)
}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(200,16,46,.46)}
.btn--ghost{
  background:rgba(232,180,74,.1);color:var(--c-gold);
  border-color:rgba(232,180,74,.45)
}
.btn--ghost:hover{background:rgba(232,180,74,.2);border-color:var(--c-gold)}

/* 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 13px;border-radius:999px;
  border:var(--edge);background:rgba(242,244,247,.04);
  color:var(--c-chalk);font-size:13px;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease)
}
.nav-toggle__bars{position:relative;width:16px;height:2px;background:currentColor;flex:none}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle__text{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em}
.nav-toggle:hover{border-color:var(--c-volt);color:var(--c-volt)}
.nav-toggle[aria-expanded="true"]{border-color:var(--c-volt);color:var(--c-volt);background:rgba(0,229,208,.1)}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  border-top:var(--edge);
  background:linear-gradient(180deg,rgba(22,24,29,.62),#0B0D10 62%);
  padding-top:clamp(36px,5vw,68px)
}
.footer-shell{
  max-width:1440px;margin-inline:auto;padding-inline:var(--pad-x);
  display:grid;gap:clamp(28px,4vw,56px);
  grid-template-columns:1fr
}
@media (min-width:900px){
  .footer-shell{grid-template-columns:minmax(220px,1fr) 2.6fr}
}
.footer-brand{display:grid;gap:14px;align-content:start}
.brand--footer{align-items:center}
.footer-lede{margin:0;font-size:14.5px;line-height:1.7;color:var(--c-mist);max-width:32ch}
.footer-status{justify-content:flex-start}

.footer-zones{display:grid;gap:clamp(22px,3vw,40px);grid-template-columns:1fr}
@media (min-width:680px){
  .footer-zones{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.footer-zone__title{
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:var(--edge);
  font-family:var(--font-serif);font-weight:500;
  font-size:12.5px;letter-spacing:.18em;color:var(--c-gold)
}
.footer-zone__list{display:grid;gap:9px}
.footer-link{font-size:14px;line-height:1.65;color:var(--c-mist);transition:color .2s var(--ease)}
.footer-link:hover{color:var(--c-volt)}
.footer-text{display:block;font-size:12.5px;line-height:1.7;color:var(--c-mist)}
.footer-zone__list li:last-child .footer-text{color:#8D949F}

.footer-base{
  max-width:1440px;margin:clamp(30px,4vw,54px) auto 0;
  padding:18px var(--pad-x) 26px;
  border-top:var(--edge);
  display:flex;flex-wrap:wrap;gap:8px 24px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:#8D949F
}
.footer-base p{margin:0}

/* ---------- 7. 移动端与平板 ---------- */
@media (max-width:1079px){
  :root{--bar-h:100px}
  .brand-rail{display:none}
  .brand--compact{display:inline-flex}
  .brand--compact .brand-mark{width:32px;height:32px;border-radius:10px;font-size:12px}
  .brand--compact .brand-name{font-size:14px}

  .command-bar__inner{
    display:grid;
    grid-template-columns:1fr auto;
    grid-template-rows:auto auto;
    align-content:center;
    gap:8px 12px;
    padding-block:10px
  }
  .brand--compact{grid-column:1;grid-row:1}
  .command-bar__actions{grid-column:2;grid-row:1;margin-left:0}
  .command-nav{grid-column:1 / -1;grid-row:2;min-width:0}
  .command-nav__list{
    flex-wrap:nowrap;overflow-x:auto;padding-bottom:2px;
    scroll-snap-type:x proximity;
    -webkit-overflow-scrolling:touch
  }
  .command-nav__item{scroll-snap-align:start}
  .command-nav__link{font-size:13px;padding:6px 10px}
  .command-nav__num{width:16px;font-size:10.5px}
  .nav-toggle{display:inline-flex}

  .command-nav[data-open="true"]{
    position:absolute;left:0;right:0;top:100%;
    padding:14px var(--pad-x) 18px;
    background:rgba(11,13,16,.97);
    border-bottom:var(--edge);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px)
  }
  .command-nav[data-open="true"] .command-nav__list{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;overflow:visible
  }
  .command-nav[data-open="true"] .command-nav__link{
    border:var(--edge);border-radius:var(--radius-m);padding:10px 12px
  }
}
@media (max-width:600px){
  .command-bar__actions .btn--ghost{display:none}
  .btn{padding:9px 15px;font-size:13.5px}
  .footer-base{flex-direction:column;gap:6px}
}

/* ---------- 8. 偏好与可达性 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important
  }
  html[data-ready="true"] [data-reveal]{opacity:1;transform:none}
  .status-dot{box-shadow:0 0 0 2px rgba(0,229,208,.18)}
}