/* =========================================================
   B体育赛事 · 共享外壳样式 /assets/site.css
   深墨绿 + 炭黑底，荧光青柠作主强调，琥珀橙标记差异
   ========================================================= */

:root{
  --ink:#06251F;
  --char:#0B0F0D;
  --slate:#123B32;
  --lime:#C6FF3D;
  --lime-soft:#E8FF9C;
  --amber:#FF9E2C;
  --silver:#C9D3D0;
  --mist:#7E958E;
  --paper:#F4F7EF;
  --night:#0E1C2A;

  --line:rgba(201,211,208,.16);
  --line-strong:rgba(201,211,208,.32);
  --lime-a12:rgba(198,255,61,.12);
  --lime-a06:rgba(198,255,61,.06);
  --amber-a14:rgba(255,158,44,.14);

  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono","Noto Sans SC",ui-monospace,monospace;

  --r-sm:4px;
  --r-md:10px;
  --r-lg:18px;
  --r-pill:999px;

  --shell:1240px;
  --pad:clamp(16px,3vw,40px);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin:0}
h1,h2,h3,h4{line-height:1.08;font-weight:800}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
figure{margin:0}
button{font:inherit;color:inherit}
a{color:var(--lime-soft);text-decoration:none}
a:hover{color:var(--lime)}
::selection{background:var(--lime);color:#08211B}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:2px}
#main-content:focus{outline:none}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  transform:translateY(-180%);
  background:var(--lime);color:#08211B;
  font-weight:700;font-size:14px;letter-spacing:.04em;
  padding:10px 18px;border-radius:var(--r-sm);
  transition:transform .18s var(--ease);
}
.skip-link:focus-visible{transform:translateY(0);outline-offset:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-size:15px;font-weight:700;
  letter-spacing:.02em;line-height:1.2;
  padding:12px 20px;border:1px solid transparent;border-radius:var(--r-sm);
  background:transparent;color:var(--paper);cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .18s var(--ease);
}
.btn--sm{padding:9px 14px;font-size:13px;letter-spacing:.04em}
.btn--primary{
  background:var(--lime);color:#08211B;
  box-shadow:0 0 0 1px rgba(198,255,61,.35),0 14px 28px -20px rgba(198,255,61,.95);
}
.btn--primary:hover{background:var(--lime-soft);color:#08211B}
.btn--primary:active{transform:translateY(1px)}
.btn--primary[aria-pressed="true"]{
  background:transparent;color:var(--lime);
  border-color:rgba(198,255,61,.7);box-shadow:none;
}
.btn--ghost{
  border-color:var(--line-strong);color:var(--silver);
}
.btn--ghost:hover{
  border-color:rgba(198,255,61,.75);color:var(--paper);background:var(--lime-a12);
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:linear-gradient(180deg,rgba(6,37,31,.97),rgba(6,37,31,.9));
  border-bottom:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--lime) 0 46%,var(--lime-soft) 46% 58%,var(--amber) 58% 72%,var(--slate) 72% 100%);
}
.site-header__inner{
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:14px var(--pad) 12px;
}
.site-header__top{
  display:grid;
  grid-template-columns:auto auto minmax(0,1fr);
  align-items:center;
  gap:12px 20px;
}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--paper);min-width:0}
.brand:hover{color:var(--paper)}
.brand__mark{
  position:relative;flex:none;width:32px;height:32px;
  background:var(--lime);
  clip-path:polygon(0 0,100% 0,100% 60%,60% 100%,0 100%);
}
.brand__mark::after{
  content:"";position:absolute;right:0;bottom:0;width:38%;height:38%;
  background:var(--ink);
}
.brand__text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand__name{
  font-family:var(--font-display);font-weight:800;font-size:21px;
  letter-spacing:.06em;color:var(--paper);white-space:nowrap;
}
.brand__note{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;
  color:var(--mist);margin-top:3px;white-space:nowrap;
}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px 6px 11px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:linear-gradient(90deg,rgba(18,59,50,.95),rgba(14,28,42,.45));
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--silver);white-space:nowrap;
}
.status-chip__dot{
  width:7px;height:7px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,61,.18);
  animation:chip-pulse 2.6s var(--ease) infinite;
}
@keyframes chip-pulse{0%,100%{opacity:1}50%{opacity:.35}}
.header-actions{display:flex;align-items:center;gap:8px;justify-self:end}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  background:rgba(18,59,50,.6);color:var(--paper);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(198,255,61,.7);background:var(--lime-a12)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars span{display:block;height:2px;background:var(--lime);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle__label{white-space:nowrap}
.site-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}

.nav-rail{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:12px;padding-top:10px;border-top:1px dashed var(--line);
}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:wrap;min-width:0}
.nav-item{display:flex}
.nav-link{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:8px 12px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--silver);white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-link__index{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  color:var(--mist);transition:color .18s var(--ease);
}
.nav-link:hover{background:var(--lime-a12);color:var(--paper)}
.nav-link:hover .nav-link__index{color:var(--lime)}
.nav-link[aria-current="page"]{background:var(--lime);color:#08211B}
.nav-link[aria-current="page"] .nav-link__index{color:rgba(8,33,27,.62)}
.nav-rail__meta{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.26em;
  color:var(--mist);white-space:nowrap;
}
.scroll-meter{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.scroll-meter span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--lime),var(--lime-soft) 62%,var(--amber));
  transition:width .1s linear;
}

/* ---------- layout helpers ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(40px,7vw,96px)}
.section--tight{padding-block:clamp(26px,4vw,54px)}
.section--char{background:var(--char)}
.section--slate{background:linear-gradient(180deg,var(--slate),var(--ink))}

.section-head{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  align-items:end;gap:14px 24px;
  padding-bottom:14px;margin-bottom:clamp(20px,3vw,36px);
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  margin-bottom:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--lime);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--lime)}
.section-title{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(28px,3.8vw,54px);line-height:1.02;
  letter-spacing:-.01em;color:var(--paper);text-wrap:balance;
}
.section-lead{
  margin-top:10px;max-width:58ch;
  font-family:var(--font-serif);font-size:clamp(15px,1.4vw,18px);
  line-height:1.75;color:var(--silver);
}
.section-aside{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  color:var(--mist);text-align:right;
}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--thirds{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}

/* ---------- surfaces ---------- */
.panel{
  position:relative;overflow:hidden;
  padding:clamp(16px,2.2vw,26px);
  border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(18,59,50,.88),rgba(11,15,13,.94));
}
.panel--glass{
  background:rgba(18,59,50,.42);
  border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.panel__title{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(18px,2vw,24px);letter-spacing:.01em;color:var(--paper);
  margin-bottom:10px;
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--silver);white-space:nowrap;
}
.tag--lime{border-color:rgba(198,255,61,.55);color:var(--lime);background:var(--lime-a12)}
.tag--amber{border-color:rgba(255,158,44,.55);color:var(--amber);background:var(--amber-a14)}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{
  font-family:var(--font-mono);font-weight:600;
  font-size:clamp(24px,3vw,38px);line-height:1;
  color:var(--lime);font-variant-numeric:tabular-nums;
}
.stat__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--mist);
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--mist);
}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{margin-bottom:clamp(14px,2vw,24px)}
.breadcrumbs ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--mist);
}
.breadcrumbs li{display:flex;align-items:center;gap:6px;min-width:0}
.breadcrumbs li + li::before{content:"/";color:var(--line-strong)}
.breadcrumbs a{color:var(--silver);border-bottom:1px solid transparent}
.breadcrumbs a:hover{color:var(--lime);border-color:rgba(198,255,61,.6)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}

/* ---------- data table base ---------- */
.data-table-wrap{
  width:100%;overflow-x:auto;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(11,15,13,.72);
  -webkit-overflow-scrolling:touch;
}
.data-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
.data-table caption{
  padding:12px 14px;text-align:left;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--mist);border-bottom:1px solid var(--line);
}
.data-table th{
  padding:10px 12px;text-align:left;white-space:nowrap;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.14em;color:var(--mist);
  border-bottom:1px solid var(--line-strong);
}
.data-table td{
  padding:10px 12px;
  color:var(--silver);border-bottom:1px solid var(--line);
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table .num{font-family:var(--font-mono);text-align:right;font-variant-numeric:tabular-nums;color:var(--paper)}
.data-table tbody tr:hover{background:var(--lime-a06)}
.data-table tbody tr:hover td{border-color:rgba(198,255,61,.22)}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:radial-gradient(120% 120% at 18% 0%,rgba(18,59,50,.95),rgba(11,15,13,1));
}
.media-frame__body{position:relative;display:block;aspect-ratio:16/10}
.media-frame__body img,.media-frame__body video{width:100%;height:100%;object-fit:cover}
.media-frame__body::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,37,31,0) 42%,rgba(6,37,31,.74));
}
.media-frame__body:empty{
  background-image:repeating-linear-gradient(135deg,rgba(198,255,61,.07) 0 10px,transparent 10px 20px);
}
.media-frame__caption{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 14px;
  padding:10px 14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--mist);
  border-top:1px solid var(--line);background:rgba(11,15,13,.62);
}
.media-frame--wide .media-frame__body{aspect-ratio:21/9}
.media-frame--tall .media-frame__body{aspect-ratio:4/5}
.media-frame--square .media-frame__body{aspect-ratio:1/1}

/* ---------- reveal ---------- */
.reveal{
  opacity:0;transform:translateY(14px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.reveal.is-in{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--char),#04080A 68%,#020504);
  border-top:1px solid var(--line-strong);
  color:var(--silver);
  padding-top:clamp(28px,4vw,52px);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--lime) 0 62%,var(--amber) 62% 100%);
}
.site-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(90deg,rgba(201,211,208,.06) 0 1px,transparent 1px 84px);
}
.footer-shell{
  position:relative;z-index:1;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding-inline:var(--pad);
}
.footer-grid{
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(18px,2.4vw,32px);
  padding-bottom:clamp(20px,3vw,36px);
}
.footer-brand{grid-column:span 4;min-width:0}
.footer-brand__line{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(18px,2vw,25px);line-height:1.15;letter-spacing:.01em;
  color:var(--paper);margin-bottom:12px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:6px}
.footer-tag{
  padding:3px 8px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--mist);
  white-space:nowrap;
}
.footer-progress{
  grid-column:span 2;min-width:0;
  display:flex;flex-direction:column;gap:6px;
  padding-left:14px;border-left:1px solid var(--line);
}
.footer-progress__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--mist);
}
.footer-progress__value{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(20px,2.4vw,28px);line-height:1.05;color:var(--lime);
}
.footer-download{
  grid-column:span 3;min-width:0;
  padding:14px 16px;
  border:1px dashed rgba(198,255,61,.4);border-radius:var(--r-md);
  background:var(--lime-a06);
}
.footer-download__title{
  font-size:14.5px;font-weight:700;line-height:1.45;color:var(--paper);
  margin-bottom:5px;
}
.footer-download__note{
  font-size:12.5px;line-height:1.6;color:var(--mist);margin-bottom:12px;
}
.footer-contact{
  grid-column:span 3;min-width:0;
  display:flex;flex-direction:column;gap:8px;
}
.footer-contact__row{
  display:grid;grid-template-columns:42px minmax(0,1fr);gap:8px;align-items:baseline;
}
.footer-contact__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--mist);
}
.footer-contact__value{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em;
  color:var(--paper);word-break:break-word;
}
.footer-contact__note{
  font-size:13px;line-height:1.6;color:var(--mist);
  padding-top:8px;border-top:1px solid var(--line);
}
.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 20px;
  padding:16px 0 22px;border-top:1px solid var(--line);
}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.footer-link{
  font-size:13px;color:var(--silver);
  padding-bottom:2px;border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-link:hover{color:var(--lime);border-color:rgba(198,255,61,.6)}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist);
}
.footer-legal__sep{opacity:.55}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer-brand{grid-column:span 6}
  .footer-progress{grid-column:span 2}
  .footer-download{grid-column:span 4}
  .footer-contact{grid-column:span 6}
}

@media (max-width:900px){
  .section-head{grid-template-columns:minmax(0,1fr)}
  .section-aside{text-align:left}
  .grid--halves,.grid--thirds,.grid--8-4,.grid--7-5{grid-template-columns:minmax(0,1fr)}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
}

@media (max-width:860px){
  .site-header__inner{padding:12px var(--pad) 10px}
  .site-header__top{
    grid-template-columns:minmax(0,1fr) auto auto;
    gap:10px 12px;
  }
  .status-chip{display:none}
  .header-actions{justify-self:end}
  .header-actions .btn--ghost{display:none}
  .nav-toggle{display:inline-flex}
  .nav-rail{
    display:none;
    margin-top:10px;padding-top:12px;
    border-top:1px solid var(--line-strong);
    flex-direction:column;align-items:stretch;gap:6px;
  }
  .site-header[data-open] .nav-rail{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{
    width:100%;justify-content:flex-start;
    padding:13px 14px;font-size:15px;
    border:1px solid transparent;
  }
  .nav-link__index{font-size:11px}
  .nav-link:hover{border-color:var(--line)}
  .nav-link[aria-current="page"]{border-color:var(--lime)}
  .nav-rail__meta{display:none}
  .brand__name{font-size:19px}
  .brand__note{font-size:9px;letter-spacing:.18em}
}

@media (max-width:640px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-brand,.footer-progress,.footer-download,.footer-contact{grid-column:auto}
  .footer-progress{padding-left:0;border-left:0;padding-top:12px;border-top:1px solid var(--line)}
  .footer-meta{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .brand__mark{width:28px;height:28px}
}

@media (max-width:380px){
  .header-actions .btn--primary{display:none}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
  .status-chip__dot{animation:none}
  .scroll-meter span{transition:none}
}