/* ============================================================
   B体育主站 · 共享样式表 /assets/site.css
   深墨绿夜场基底 · 荧光黄绿实时焦点 · 锐利直角精密网格
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0A1A15;
  --panel:#13342A;
  --edge:#1E5A46;
  --lime:#D8FF3E;
  --lime-soft:#E8FFB0;
  --paper:#F4F1E6;
  --carbon:#14120F;
  --rust:#E0541E;
  --mist:#9AA8A2;
  --rule:#2A3A34;
  --paper-rule:#D8D3C2;
  --paper-mist:#6B6B60;
  --sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --gutter:24px;
  --shell:1440px;
  --r:2px;
  --t:220ms;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 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}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{width:100%;border-collapse:collapse}
[hidden]{display:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
:focus:not(:focus-visible){outline:none}
::selection{background:var(--lime);color:var(--carbon)}

/* ---------- 3. 中文排版 ---------- */
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.65;
  min-height:100%;
}
h1,h2,h3,h4{line-height:1.2;font-weight:800;letter-spacing:-.02em}
p{text-wrap:pretty}
.display{
  font-size:clamp(2.4rem,6vw,5.6rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.06;
}
.display--sm{font-size:clamp(1.8rem,4vw,3.2rem)}
.h2{font-size:clamp(1.5rem,3vw,2.4rem);font-weight:800;letter-spacing:-.02em}
.h3{font-size:clamp(1.15rem,2vw,1.5rem);font-weight:700;letter-spacing:-.01em}
.lede{font-size:17px;line-height:1.8;color:var(--mist);max-width:68ch}
.data-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  font-weight:700;
  letter-spacing:.02em;
}
.eyebrow{
  display:block;
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--mist);
}
.coord{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--mist)}
.rail-note{
  writing-mode:vertical-rl;
  font-size:11px;
  letter-spacing:.22em;
  color:var(--mist);
}
mark{background:var(--lime-soft);color:var(--carbon);padding:0 .2em}

/* ---------- 4. 布局 ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container--narrow{max-width:860px}
.container--text{max-width:720px}
.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(28px,4vw,52px)}
.section--paper{background:var(--paper);color:var(--carbon)}
.section--panel{background:var(--panel)}
.section--paper .eyebrow,
.section--paper .coord,
.section--paper .lede{color:var(--paper-mist)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter)}
.track{display:grid;grid-template-columns:minmax(140px,1fr) minmax(0,3fr);gap:var(--gutter);align-items:start}
.stack{display:grid;gap:16px}
.stack--lg{gap:28px}
.rule{border:0;border-top:1px solid var(--rule);margin:0}
.section--paper .rule{border-top-color:var(--paper-rule)}
.sep{display:inline-block;width:1px;height:18px;background:var(--rule);vertical-align:middle}

/* 左侧标签轨道 */
.rail{
  position:sticky;
  top:88px;
  display:grid;
  gap:2px;
  border-left:2px solid var(--rule);
  padding-left:14px;
}
.rail__item{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:7px 0;
  font-family:inherit;
  font-size:13px;
  text-align:left;
  color:var(--mist);
  border:0;
  background:none;
  cursor:pointer;
  transition:color var(--t) var(--ease);
}
.rail__item:hover{color:var(--paper)}
.rail__item.is-active{color:var(--lime)}
.rail__index{font-family:var(--mono);font-size:10px;letter-spacing:.06em}

/* ---------- 5. 通用组件 ---------- */
.panel{
  background:var(--panel);
  border:1px solid var(--rule);
  border-radius:var(--r);
  padding:20px;
}
.panel--flat{background:transparent}
.panel--paper{background:var(--paper);color:var(--carbon);border-color:var(--paper-rule)}

.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--mist);flex:none}
.dot--lime{background:var(--lime);box-shadow:0 0 8px rgba(216,255,62,.65)}
.dot--rust{background:var(--rust)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 8px;
  font-size:11px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--mist);
  border:1px solid var(--rule);
  border-radius:var(--r);
  white-space:nowrap;
}
.tag--live{background:var(--lime);color:var(--carbon);border-color:var(--lime)}
.tag--alert{color:var(--rust);border-color:var(--rust)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.03em;
  line-height:1;
  color:var(--paper);
  background:transparent;
  border:1px solid var(--edge);
  border-radius:var(--r);
  cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.btn:hover{background:var(--edge);border-color:var(--edge);color:var(--paper)}
.btn--lime{background:var(--lime);border-color:var(--lime);color:var(--carbon)}
.btn--lime:hover{background:var(--lime-soft);border-color:var(--lime-soft);color:var(--carbon)}
.btn--ghost{background:transparent;border-color:var(--rule);color:var(--paper)}
.btn--ghost:hover{background:transparent;border-color:var(--lime);color:var(--lime)}
.btn--sm{padding:9px 14px;font-size:13px}
.btn--block{width:100%}

.breadcrumbs{padding-block:14px;border-bottom:1px solid var(--rule)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--mist)}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";color:var(--rule)}
.breadcrumbs__link{transition:color var(--t) var(--ease)}
.breadcrumbs__link:hover{color:var(--lime)}
.breadcrumbs__item[aria-current="page"]{color:var(--paper)}

.prose{max-width:68ch;font-size:16px;line-height:1.8}
.prose--wide{max-width:78ch}
.prose > * + *{margin-top:1.1em}
.prose h2{margin-top:2em;font-size:clamp(1.4rem,2.4vw,2rem)}
.prose h3{margin-top:1.6em;font-size:1.2rem}
.prose ul,.prose ol{display:grid;gap:10px}
.prose li{position:relative;padding-left:22px}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:10px;height:1px;background:var(--lime)}
.section--paper .prose li::before{background:var(--rust)}
.prose a{color:var(--lime);border-bottom:1px solid currentColor}
.section--paper .prose a{color:var(--rust)}

.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--rule);
  border-radius:var(--r);
}
.media-frame > img,
.media-frame > video{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--none{aspect-ratio:auto}
.media-frame__grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(154,168,162,.16) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(154,168,162,.16) 1px,transparent 1px);
  background-size:48px 48px;
}
.media-frame__badge{position:absolute;left:12px;top:12px;z-index:2}
.media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:10px 14px;
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mist);
  background:linear-gradient(to top,rgba(10,26,21,.94),rgba(10,26,21,0));
}

.expand{
  background:var(--panel);
  border:1px solid var(--rule);
  border-left:2px solid var(--rule);
  border-radius:var(--r);
  transition:border-left-color var(--t) var(--ease);
}
.expand[data-open="true"]{border-left-color:var(--lime)}
.expand__toggle{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 16px;
  font-size:15px;
  font-weight:700;
  text-align:left;
  color:var(--paper);
}
.expand__mark{font-family:var(--mono);font-size:15px;color:var(--lime);flex:none}
.expand__mark::before{content:"+"}
.expand[data-open="true"] .expand__mark::before{content:"–"}
.expand__panel{padding:0 16px 18px;font-size:15px;color:var(--mist)}
.expand__panel[hidden]{display:none}

.dtable{width:100%;font-size:14px}
.dtable th{
  padding:8px 10px;
  font-size:11px;
  font-weight:600;
  letter-spacing:.12em;
  text-align:left;
  color:var(--mist);
  border-bottom:1px solid var(--rule);
}
.dtable td{padding:10px;border-bottom:1px solid var(--rule);color:var(--paper)}
.section--paper .dtable th{color:var(--paper-mist);border-bottom-color:var(--paper-rule)}
.section--paper .dtable td{color:var(--carbon);border-bottom-color:var(--paper-rule)}

.meter{position:relative;height:3px;background:var(--rule);overflow:hidden}
.meter__fill{display:block;height:100%;width:0;background:var(--lime);transition:width var(--t) var(--ease)}

/* 滚动显现（JS 增强，无 JS 时默认可见） */
[data-reveal]{transition:opacity .24s var(--ease),transform .24s var(--ease)}
[data-reveal].is-pending{opacity:0;transform:translateY(14px)}

/* ---------- 6. 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-64px;
  z-index:120;
  padding:10px 16px;
  font-size:13px;
  font-weight:700;
  color:var(--carbon);
  background:var(--lime);
  border-radius:var(--r);
  transition:top var(--t) var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- 7. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--rule);
}
.site-header__inner{
  position:relative;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:10px var(--gutter);
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:var(--gutter);
  min-height:64px;
}

.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand__mark{
  width:10px;height:10px;flex:none;
  background:var(--lime);
  box-shadow:0 0 10px rgba(216,255,62,.6);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-size:16px;font-weight:800;letter-spacing:.02em;line-height:1.2;color:var(--paper)}
.brand__line{font-size:11px;letter-spacing:.12em;line-height:1.35;color:var(--mist)}

.site-nav{min-width:0}
.site-nav__list{display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.site-nav__item{display:flex}
.site-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:5px;
  padding:8px 10px;
  font-size:14px;
  color:var(--paper);
  border:1px solid transparent;
  border-radius:var(--r);
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.site-nav__link:hover{background:rgba(30,90,70,.4);border-color:var(--edge)}
.site-nav__index{font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--mist)}
.site-nav__label{white-space:nowrap}
.site-nav__link[aria-current="page"]{color:var(--lime)}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--lime)}
.site-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:2px;
  height:2px;
  background:var(--lime);
}

.header-tools{display:flex;align-items:center;gap:12px}
.header-tools__cta{white-space:nowrap}
.league-switch{
  display:flex;
  align-items:center;
  gap:8px;
  padding-left:12px;
  border-left:1px solid var(--rule);
}
.league-switch__label{font-size:10px;letter-spacing:.14em;color:var(--mist);white-space:nowrap}
.league-switch__track{display:flex;gap:1px;background:var(--rule);padding:1px;border-radius:var(--r)}
.league-switch__btn{
  padding:6px 9px;
  font-family:var(--mono);
  font-size:12px;
  color:var(--paper);
  background:var(--panel);
  border-radius:var(--r);
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
}
.league-switch__btn:hover{background:var(--edge)}
.league-switch__btn.is-active{background:var(--lime);color:var(--carbon);font-weight:700}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 12px;
  color:var(--paper);
  border:1px solid var(--rule);
  border-radius:var(--r);
}
.nav-toggle:hover{border-color:var(--lime)}
.nav-toggle__icon{
  position:relative;
  display:block;
  width:18px;height:2px;
  background:var(--lime);
  transition:background var(--t) var(--ease);
}
.nav-toggle__icon::before,
.nav-toggle__icon::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--lime);
  transition:transform var(--t) var(--ease),top var(--t) var(--ease);
}
.nav-toggle__icon::before{top:-6px}
.nav-toggle__icon::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after{top:0;transform:rotate(-45deg)}
.nav-toggle__text{font-size:12px;letter-spacing:.1em}

.header-progress{height:2px;background:transparent}
.header-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:var(--lime);
  transition:width .1s linear;
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  background:var(--ink);
  border-top:1px solid var(--rule);
  color:var(--mist);
}
.site-footer__inner{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(32px,5vw,56px) var(--gutter) 28px;
  display:grid;
  grid-template-columns:minmax(220px,1.1fr) minmax(0,2.2fr);
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.footer-brand{display:grid;gap:14px;align-content:start}
.footer-brand__note{font-size:13px;line-height:1.7;color:var(--mist);max-width:32ch}
.footer-status{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--paper);
}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,3vw,32px)}
.footer-col{display:grid;gap:10px;align-content:start}
.footer-col__title{font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--lime)}
.footer-col__list{display:grid;gap:8px}
.footer-col__link{
  font-size:13.5px;
  color:var(--mist);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.footer-col__link:hover{color:var(--lime);border-bottom-color:var(--lime)}

.footer-bar{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:16px var(--gutter) 24px;
  border-top:1px solid var(--rule);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  font-size:12px;
  line-height:1.6;
  color:var(--mist);
}
.footer-bar__contact,
.footer-bar__hours{min-width:0}
.footer-bar__legal{
  font-family:var(--mono);
  letter-spacing:.02em;
  color:#6F7D77;
  white-space:nowrap;
}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1200px){
  .site-nav__link{font-size:13px;padding:8px 8px}
  .site-nav__index{display:none}
}

@media (max-width:980px){
  .site-header__inner{grid-template-columns:minmax(0,1fr) auto auto;gap:12px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:none;
    background:var(--ink);
    border-bottom:1px solid var(--edge);
    padding:6px var(--gutter) 18px;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item{display:block}
  .site-nav__link{
    padding:14px 10px;
    font-size:16px;
    border:0;
    border-left:2px solid transparent;
    border-bottom:1px solid var(--rule);
    border-radius:0;
  }
  .site-nav__link:hover{background:rgba(30,90,70,.28);border-color:transparent;border-left-color:var(--edge);border-bottom-color:var(--rule)}
  .site-nav__index{display:inline}
  .site-nav__link[aria-current="page"]{border-left-color:var(--lime)}
  .site-nav__link[aria-current="page"]::after{display:none}
  .league-switch{border-left:0;padding-left:0}
  .league-switch__label{display:none}
  .league-switch__track{max-width:46vw;overflow-x:auto}
  .track{grid-template-columns:minmax(0,1fr)}
  .rail{
    position:static;
    display:flex;
    flex-direction:row;
    overflow-x:auto;
    gap:6px;
    padding-left:0;
    padding-bottom:10px;
    border-left:0;
    border-bottom:1px solid var(--rule);
    -webkit-overflow-scrolling:touch;
  }
  .rail__item{flex:none;white-space:nowrap;padding:7px 10px;border:1px solid var(--rule)}
  .rail__item.is-active{border-color:var(--lime)}
  .site-footer__inner{grid-template-columns:minmax(0,1fr);gap:28px}
}

@media (max-width:820px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:640px){
  :root{--gutter:18px}
  .league-switch{display:none}
  .header-tools{gap:8px}
  .brand__line{display:none}
}

@media (max-width:480px){
  .brand__name{font-size:15px}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
  .footer-bar{flex-direction:column;align-items:flex-start}
  .grid-12{grid-template-columns:repeat(4,minmax(0,1fr))}
}

/* ---------- 10. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal],
  [data-reveal].is-pending{opacity:1;transform:none}
  .header-progress__bar{transition:none}
}