/* ============ YABO 指挥台共享样式 /assets/site.css ============ */
:root{
  --ink:#06110F;
  --panel:#0B1F1B;
  --panel-2:#102C26;
  --line:#1C4438;
  --mint:#3DF2A8;
  --mint-soft:#9DF7D2;
  --warm:#FF8A3D;
  --text:#F2F7F4;
  --muted:#8FA9A0;
  --faint:#5A7A70;
  --cut:18px;
  --gutter:clamp(18px,4vw,56px);
  --maxw:1360px;
  --font-display:"Arial Narrow","Helvetica Neue Condensed","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono","Cascadia Mono",Consolas,"Courier New",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(92% 58% at 88% -12%, rgba(61,242,168,.09), transparent 62%),
    radial-gradient(68% 52% at -8% 4%, rgba(255,138,61,.06), transparent 60%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--mint);color:#04120E}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px}

/* ---------- 容器 / 版式 ---------- */
.container{width:min(100% - (var(--gutter) * 2), var(--maxw));margin-inline:auto}
.section{padding-block:clamp(40px,6vw,72px)}
.grid{display:grid;gap:clamp(16px,2vw,24px)}
.grid--bento{grid-template-columns:repeat(12,minmax(0,1fr))}
.span-4{grid-column:span 4}
.span-6{grid-column:span 6}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mint-soft);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--mint)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.lede{max-width:38em;font-size:clamp(16px,1.3vw,19px);line-height:1.75;color:var(--muted)}
.prose{max-width:36em;line-height:1.75}
.prose p{margin-bottom:1.1em}
.prose h3{font-family:var(--font-display);font-weight:800;font-size:20px;line-height:1.4;margin-bottom:.6em}
.prose ul{list-style:disc;padding-left:1.25em;margin-bottom:1.1em}
.prose li{margin-bottom:.4em}
.prose a{color:var(--mint-soft);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--mint)}
.slash-rule{
  height:14px;border:0;margin-block:clamp(24px,4vw,48px);
  background-image:repeating-linear-gradient(-78deg, var(--line) 0 1px, transparent 1px 12px);
}

/* ---------- 框景 / 面板 ---------- */
.frame{
  position:relative;
  padding:clamp(20px,3.4vw,48px);
  border:1px solid var(--line);
  background-image:
    radial-gradient(120% 90% at 82% -18%, rgba(61,242,168,.11), transparent 62%),
    radial-gradient(86% 70% at -6% 112%, rgba(255,138,61,.07), transparent 66%);
}
.frame::before,.frame::after{content:"";position:absolute;width:18px;height:18px;border:2px solid var(--mint);opacity:.85}
.frame::before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.frame::after{right:-1px;bottom:-1px;border-top:0;border-left:0}
.frame__label{
  display:block;margin-top:clamp(18px,2.6vw,28px);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--faint);
}
.panel{
  position:relative;
  padding:clamp(18px,2.2vw,28px);
  background:var(--panel);
  clip-path:polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}
.panel::before{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px var(--line);pointer-events:none}
.panel--focus::before{box-shadow:inset 0 0 0 1px var(--mint)}
.panel--note{
  background:transparent;clip-path:none;
  padding:14px 18px;border-left:2px solid var(--warm);
}
.panel--note::before{display:none}
.panel__head{
  display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline;justify-content:space-between;
  padding-bottom:10px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.panel__title{font-family:var(--font-display);font-weight:800;font-size:20px;line-height:1.25;letter-spacing:.01em}
.panel__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--faint)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.68em 1.15em;
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.06em;
  text-decoration:none;color:var(--text);
  background:transparent;border:1px solid var(--line);
  transition:color .12s ease, background-color .12s ease, border-color .12s ease, transform .12s ease;
}
.btn:hover{transform:translateY(-2px);border-color:var(--mint)}
.btn--primary{background:var(--mint);border-color:var(--mint);color:#04120E}
.btn--primary:hover{background:var(--mint-soft);border-color:var(--mint-soft);color:#04120E}
.btn--ghost{color:var(--mint-soft)}
.btn--ghost:hover{color:var(--text)}
.btn--cut{clip-path:polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%)}

/* ---------- 面包屑 / 标签 ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--faint)}
.crumbs__item{display:inline-flex;align-items:center;gap:8px}
.crumbs__item a{color:var(--muted);text-decoration:none;transition:color .12s ease}
.crumbs__item a:hover{color:var(--mint)}
.crumbs__sep{color:var(--faint)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--muted);background:var(--panel-2);border:1px solid var(--line);
}
.tag--live{background:var(--mint);border-color:var(--mint);color:#04120E}
.tag--warm{color:var(--warm);border-color:rgba(255,138,61,.55);background:rgba(255,138,61,.08)}

/* ---------- 图片容器（页面阶段放 <img>） ---------- */
.media{position:relative;overflow:hidden;aspect-ratio:16/9;background-color:var(--panel-2);isolation:isolate}
.media img{width:100%;height:100%;object-fit:cover}
.media--pitch{
  background-color:#08201A;
  background-image:
    radial-gradient(58% 80% at 12% 0%, rgba(61,242,168,.22), transparent 70%),
    radial-gradient(50% 70% at 88% 4%, rgba(157,247,210,.14), transparent 70%),
    repeating-linear-gradient(90deg, rgba(28,68,56,.75) 0 1px, transparent 1px 72px);
}
.media--board{
  background-color:var(--panel);
  background-image:
    radial-gradient(70% 90% at 82% 112%, rgba(255,138,61,.13), transparent 62%),
    repeating-linear-gradient(0deg, rgba(28,68,56,.7) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(90deg, rgba(28,68,56,.7) 0 1px, transparent 1px 36px);
}
.media--stand{
  background-color:#071713;
  background-image:
    radial-gradient(80% 62% at 50% -6%, rgba(61,242,168,.16), transparent 66%),
    repeating-linear-gradient(0deg, rgba(6,17,15,.92) 0 6px, rgba(11,31,27,.92) 6px 12px);
}
.media__caption{
  position:absolute;left:0;bottom:0;
  padding:8px 12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--mint-soft);background:rgba(6,17,15,.84);
}

/* ---------- 时间轴（赛前前瞻） ---------- */
.timeline{position:relative;display:grid;gap:18px;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:4px;bottom:4px;width:1px;background:var(--line)}
.timeline__item{position:relative}
.timeline__dot{
  position:absolute;left:-26px;top:7px;width:15px;height:15px;
  background:var(--ink);border:1px solid var(--warm);
  transition:box-shadow .12s ease, transform .12s ease;
}
.timeline__item:hover .timeline__dot{box-shadow:0 0 0 3px rgba(255,138,61,.18);transform:translateY(-2px)}
.timeline__time{display:block;margin-bottom:2px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--warm)}
.timeline__body{font-size:15px;color:var(--muted)}

/* ---------- 显现 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .24s ease, transform .24s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:120;
  padding:10px 18px;
  background:var(--mint);color:#04120E;font-weight:700;text-decoration:none;
  clip-path:polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition:top .12s ease;
}
.skip-link:focus,.skip-link:focus-visible{top:12px}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,17,15,.96);
  border-bottom:1px solid var(--line);
}
.header-inner{
  width:min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline:auto;
  padding-block:14px;
  display:flex;align-items:center;justify-content:space-between;gap:clamp(16px,3vw,40px);
}
.brand{display:inline-flex;align-items:baseline;gap:12px;text-decoration:none;color:var(--text);flex:0 0 auto}
.brand__mark{
  font-family:var(--font-display);font-weight:800;font-stretch:condensed;
  font-size:clamp(22px,2.3vw,27px);line-height:1;letter-spacing:.14em;color:var(--mint);
  text-shadow:0 0 18px rgba(61,242,168,.24);
}
.brand__sub{font-family:var(--font-mono);font-size:11px;line-height:1.4;letter-spacing:.16em;color:var(--muted)}
.brand--footer .brand__mark{font-size:22px}
.brand--footer .brand__sub{color:var(--mint-soft)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 13px;border:1px solid var(--line);
  color:var(--muted);font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  transition:border-color .12s ease, color .12s ease;
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint-soft)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:var(--mint);transition:background-color .12s ease}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--mint);
  transition:transform .12s ease;
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

.site-nav{display:flex;align-items:center;gap:clamp(6px,1.2vw,18px)}
.site-nav__list{display:flex;align-items:center;gap:2px;counter-reset:navitem}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 11px;
  color:var(--muted);text-decoration:none;
  font-size:15px;letter-spacing:.04em;
  transition:color .12s ease, box-shadow .12s ease, transform .12s ease;
}
.site-nav__link::before{
  counter-increment:navitem;
  content:counter(navitem, decimal-leading-zero);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;color:var(--faint);
}
.site-nav__link:hover{color:var(--mint-soft);box-shadow:inset 0 -1px 0 var(--mint)}
.site-nav__link[aria-current="page"]{
  color:var(--text);transform:translateY(-2px);
  box-shadow:inset 0 -2px 0 var(--mint);
}
.site-nav__link[aria-current="page"]::before{color:var(--mint)}
.header-cta{margin-left:clamp(6px,1vw,14px);white-space:nowrap}

.header-rail{background:var(--panel-2);border-top:1px solid var(--line)}
.rail-inner{
  width:min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline:auto;
  display:flex;align-items:center;gap:clamp(14px,2.4vw,32px);
  padding-block:7px;
  overflow-x:auto;scrollbar-width:none;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  white-space:nowrap;
}
.rail-inner::-webkit-scrollbar{display:none}
.rail-item{display:inline-flex;align-items:center;gap:7px}
.rail-item .num{color:var(--mint);font-size:13px}
.rail-key{color:var(--faint)}
.rail-item--note{margin-left:auto;color:var(--faint)}
.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.scroll-progress__bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--mint),var(--warm))}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,var(--panel) 0%,var(--ink) 64%);
  border-top:1px solid var(--line);
}
.footer-inner{
  width:min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline:auto;
  padding:clamp(38px,5vw,64px) 0 clamp(26px,4vw,40px);
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(24px,3vw,48px);
}
.footer-brand{display:grid;align-content:start;gap:2px}
.footer-tagline{margin-top:14px;max-width:22em;font-size:16px;line-height:1.75;color:var(--text)}
.footer-note{max-width:24em;margin-top:8px;font-size:13px;line-height:1.7;color:var(--faint)}
.footer-col{display:grid;align-content:start}
.footer-title{
  display:flex;align-items:center;gap:12px;
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--mint);
}
.footer-title::after{content:"";flex:1 1 auto;height:1px;background:var(--line)}
.footer-list{display:grid;gap:10px}
.footer-link{
  color:var(--muted);text-decoration:none;font-size:15px;
  transition:color .12s ease, box-shadow .12s ease;
}
.footer-link:hover{color:var(--mint-soft);box-shadow:inset 0 -1px 0 var(--mint)}
.contact-list{display:grid;gap:12px}
.contact-item{display:grid;gap:2px}
.contact-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--faint)}
.contact-value{font-size:15px;line-height:1.6;color:var(--text);overflow-wrap:anywhere}
.contact-note{margin-top:16px;font-size:13px;line-height:1.7;color:var(--faint)}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom-inner{
  width:min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline:auto;
  padding-block:16px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px}
.footer-legal .footer-link{font-size:13px}
.footer-dot{color:var(--line)}
.footer-copy{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--faint)}
.footer-icp{
  width:min(100% - (var(--gutter) * 2), var(--maxw));
  margin-inline:auto;
  padding-block:12px;
  border-top:1px dashed var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--faint);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:1024px){
  .grid--bento{grid-template-columns:repeat(6,minmax(0,1fr))}
  .span-4,.span-6,.span-8,.span-12{grid-column:span 6}
}
@media (max-width:920px){
  html{scroll-padding-top:104px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px var(--gutter) 20px;
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px rgba(0,0,0,.45);
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .site-nav[data-open]{display:flex}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    width:100%;justify-content:flex-start;
    padding:13px 6px;font-size:17px;
    border-bottom:1px solid var(--line);
  }
  .site-nav__link::before{font-size:11px}
  .site-nav__link[aria-current="page"]{
    transform:none;box-shadow:inset 3px 0 0 var(--mint);padding-left:14px;color:var(--text);
  }
  .header-cta{margin:14px 0 0;justify-content:center}
  .rail-item--note{display:none}
  .brand__sub{display:none}
}
@media (max-width:640px){
  .grid--bento{grid-template-columns:1fr}
  .span-4,.span-6,.span-8,.span-12{grid-column:1 / -1}
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .frame{padding:18px 16px}
}

/* ---------- 减少动画 ---------- */
@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;
  }
  .reveal{opacity:1;transform:none}
  .btn:hover,.timeline__item:hover .timeline__dot{transform:none}
  .site-nav__link[aria-current="page"]{transform:none}
}