/* =========================================================
   YB体育 · 共享样式表 /assets/site.css
   视觉原型：深夜发光的战术板（草皮深青绿 / 暗夜蓝比分牌 / 红黄点状判罚色）
   ========================================================= */

:root{
  --pitch:#0A2E28;
  --stand:#12463D;
  --night:#0B1B3A;
  --neon:#F1FBF6;
  --red:#E23A2E;
  --yellow:#F5C242;
  --green:#38D39F;
  --mist:#9DB3AD;
  --paper:#F3F5F0;
  --ink:#10201C;

  --line:rgba(157,179,173,.18);
  --line-strong:rgba(157,179,173,.34);

  --shell:1240px;
  --gutter:clamp(18px,4vw,40px);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:26px;
  --lift:12px;

  --font-display:"Impact","Haettenschweiler","Arial Narrow Bold","Arial Black",system-ui,sans-serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --speed:.22s;
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol,time{margin:0}
ul,ol{padding:0}
ul[class],ol[class]{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}
table{border-collapse:collapse}

/* ---------- base ---------- */
body{
  background:var(--pitch);
  color:var(--neon);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.24;font-weight:700;letter-spacing:-.01em}
strong{font-weight:700;color:var(--neon)}
:focus-visible{outline:2px solid var(--yellow);outline-offset:3px;border-radius:4px}

.shell{
  width:min(100% - var(--gutter) * 2, var(--shell));
  margin-inline:auto;
}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  left:14px;
  top:-80px;
  z-index:120;
  padding:10px 18px;
  background:var(--yellow);
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:top var(--speed) var(--ease);
}
.skip-link:focus{top:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,rgba(10,46,40,.97),rgba(10,46,40,.9));
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--speed) var(--ease);
}
.site-header[data-open]{box-shadow:0 22px 48px rgba(0,0,0,.5)}

.header-top{padding:20px 0 14px}
.header-top__inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
}
.header-top__aside{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.header-top__aside--end{justify-content:flex-end}

.util-link{
  font-size:13px;
  color:var(--mist);
  text-decoration:none;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:color var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.util-link:hover,.util-link:focus-visible{color:var(--neon);border-bottom-color:var(--yellow)}

.masthead{text-align:center;padding-inline:8px}
.masthead__brand{
  display:inline-block;
  font-size:clamp(30px,4.6vw,46px);
  font-weight:800;
  letter-spacing:.08em;
  line-height:1;
  color:var(--neon);
  text-decoration:none;
  transform:skewX(-2deg);
}
.masthead__brand::after{
  content:"";
  display:block;
  height:3px;
  margin-top:9px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--red) 0 46%,var(--yellow) 46% 100%);
  transform:skewX(2deg);
}
.masthead__line{
  margin-top:9px;
  font-size:12px;
  letter-spacing:.22em;
  color:var(--mist);
  font-family:var(--font-mono);
}

.live-dot{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 13px;
  background:var(--night);
  border:1px solid rgba(56,211,159,.3);
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--mist);
  white-space:nowrap;
}
.live-dot__pulse{
  width:8px;height:8px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 9px rgba(56,211,159,.85);
}
.live-dot__time{color:var(--green)}

.header-nav{
  position:relative;
  background:var(--night);
  border-top:1px solid var(--line);
}
.header-nav__inner{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:56px;
  position:relative;
}
.site-nav{width:100%}
.site-nav__list{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:4px;
  flex-wrap:wrap;
}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:block;
  padding:17px 16px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--mist);
  text-decoration:none;
  transition:color var(--speed) var(--ease);
}
.site-nav__link:hover,.site-nav__link:focus-visible{color:var(--neon)}
.site-nav__link[aria-current="page"]{color:var(--neon)}
.site-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:9px;
  width:18px;
  height:3px;
  border-radius:1px;
  background:var(--yellow);
  transform:translateX(-50%) skewX(-18deg);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--neon);
  font-size:14px;
  font-weight:600;
}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;background:var(--neon);border-radius:2px}
.nav-toggle[aria-expanded="true"]{border-color:var(--yellow);color:var(--yellow)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span{background:var(--yellow)}

.reading-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:3px;
  z-index:90;
  background:rgba(157,179,173,.14);
  pointer-events:none;
}
.reading-progress__bar{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg,var(--green),var(--yellow));
  transform:scaleX(0);
  transform-origin:0 50%;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--night);
  border-top:1px solid var(--line);
  color:var(--mist);
  margin-top:clamp(48px,8vw,96px);
}
.footer-main{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1.9fr);
  gap:clamp(28px,4vw,56px);
  padding:clamp(38px,6vw,64px) 0 clamp(28px,4vw,44px);
}
.footer-brand__name{
  font-size:clamp(24px,3vw,30px);
  font-weight:800;
  letter-spacing:.08em;
  color:var(--neon);
  transform:skewX(-2deg);
  display:inline-block;
}
.footer-brand__line{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--yellow);
}
.footer-brand__note{
  margin-top:14px;
  max-width:30ch;
  font-size:14px;
  line-height:1.9;
  color:var(--mist);
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--green);
  margin-bottom:14px;
}
.footer-col__list{display:grid;gap:11px}
.footer-col__link{
  font-size:14px;
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.footer-col__link:hover,.footer-col__link:focus-visible{color:var(--neon);border-bottom-color:var(--yellow)}

.footer-meta{border-top:1px solid var(--line);background:rgba(10,46,40,.42)}
.footer-meta__inner{
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  justify-content:space-between;
  padding:20px 0 30px;
  font-size:13px;
  line-height:1.8;
}
.footer-contact{color:var(--neon);font-family:var(--font-mono);font-size:12px;letter-spacing:.02em}
.footer-address{color:var(--mist)}
.footer-legal{color:var(--mist);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em}
.footer-note{flex:1 1 100%;color:var(--mist);font-size:13px}

.to-top{
  position:fixed;
  right:clamp(14px,3vw,26px);
  bottom:clamp(14px,3vw,26px);
  z-index:70;
  padding:10px 18px;
  border-radius:999px;
  background:var(--night);
  color:var(--neon);
  border:1px solid var(--line-strong);
  font-size:13px;
  font-weight:600;
  opacity:0;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity var(--speed) var(--ease),transform var(--speed) var(--ease),border-color var(--speed) var(--ease),color var(--speed) var(--ease);
}
.to-top.is-on{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{border-color:var(--green);color:var(--green)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 20px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background var(--speed) var(--ease),color var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.btn--yellow{background:var(--yellow);color:var(--ink)}
.btn--yellow:hover{background:#FFD466}
.btn--red{background:var(--red);color:var(--neon)}
.btn--red:hover{background:#F04B3E}
.btn--ghost{color:var(--neon);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--yellow);color:var(--yellow)}
.btn--quiet{color:var(--mist);border-color:var(--line)}
.btn--quiet:hover{color:var(--neon);border-color:var(--green)}

/* ---------- sections ---------- */
.section{padding:clamp(54px,8vw,104px) 0}
.section--tight{padding:clamp(34px,5vw,60px) 0}
.section--stand{background:var(--stand)}
.section--night{background:var(--night)}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper .section__title,.section--paper h2,.section--paper h3{color:var(--ink)}
.section--paper .section__lede{color:#4a5b56}

.section__head{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:46rem;
  margin-bottom:clamp(24px,4vw,46px);
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  color:var(--yellow);
}
.section__title{font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-.02em}
.section__lede{font-size:16px;color:var(--mist)}

.slant-band{
  background:var(--stand);
  clip-path:polygon(0 12%,100% 0,100% 100%,0 100%);
  padding-top:clamp(40px,6vw,76px);
}

/* ---------- data display ---------- */
.display-num{
  display:inline-block;
  font-family:var(--font-display);
  font-size:clamp(54px,11vw,120px);
  font-weight:800;
  line-height:.9;
  letter-spacing:-.03em;
  color:var(--neon);
  transform:skewX(-2deg);
}
.display-num--red{color:var(--red)}
.display-num--yellow{color:var(--yellow)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border:1px solid var(--line);
  border-radius:4px;
  background:rgba(157,179,173,.12);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.tag--red{background:rgba(226,58,46,.15);border-color:rgba(226,58,46,.4);color:#FF9E95}
.tag--yellow{background:rgba(245,194,66,.16);border-color:rgba(245,194,66,.42);color:var(--yellow)}
.tag--green{background:rgba(56,211,159,.14);border-color:rgba(56,211,159,.38);color:var(--green)}

.chip-rail{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:4px 2px 16px;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.chip-rail::-webkit-scrollbar{height:6px}
.chip-rail::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px}
.chip{
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:8px 17px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--mist);
  font-size:14px;
  font-weight:600;
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--speed) var(--ease),border-color var(--speed) var(--ease),background var(--speed) var(--ease);
}
.chip:hover{color:var(--neon);border-color:var(--yellow)}
.chip.is-active,.chip[aria-current="page"]{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}

/* ---------- cards / split / grid ---------- */
.card{
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(20px,3vw,32px);
}
.card--paper{background:#fff;color:var(--ink);border-color:rgba(16,32,28,.1)}
.card--layered{position:relative;z-index:1}
.card--layered::before{
  content:"";
  position:absolute;
  inset:var(--lift) calc(var(--lift) * -1) calc(var(--lift) * -1) var(--lift);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  z-index:-1;
}
.card__title{font-size:20px;font-weight:700;margin-bottom:8px}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist)}

.split{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(14px,2.6vw,30px);
}
.split__pane{
  min-height:180px;
  padding:clamp(22px,3.4vw,38px);
  background:var(--stand);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
}
.split__pane--red{background:linear-gradient(160deg,rgba(226,58,46,.2),rgba(11,27,58,.55))}
.split__pane--yellow{background:linear-gradient(160deg,rgba(245,194,66,.2),rgba(11,27,58,.55))}
.split__pane--night{background:var(--night)}

.grid{display:grid;gap:clamp(14px,2.2vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--aside{grid-template-columns:minmax(180px,220px) minmax(0,1fr);align-items:start}

/* ---------- index list ---------- */
.topic-list{border-top:1px solid var(--line)}
.topic-list__item{border-bottom:1px solid var(--line)}
.topic-list__link{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  gap:16px;
  align-items:baseline;
  padding:18px 6px;
  color:var(--neon);
  text-decoration:none;
  transition:background var(--speed) var(--ease),padding var(--speed) var(--ease);
}
.topic-list__link:hover,.topic-list__link:focus-visible{background:rgba(18,70,61,.62);padding-inline:18px}
.topic-list__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--yellow)}
.topic-list__text{font-size:17px;font-weight:600}
.topic-list__desc{display:block;margin-top:4px;font-size:14px;font-weight:400;color:var(--mist);line-height:1.7}
.topic-list__arrow{font-family:var(--font-mono);font-size:13px;color:var(--green)}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:18px 0 6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}
.breadcrumbs__link{color:var(--mist);text-decoration:none}
.breadcrumbs__link:hover{color:var(--yellow)}
.breadcrumbs__sep{color:rgba(157,179,173,.5)}
.breadcrumbs [aria-current="page"]{color:var(--neon)}

/* ---------- prose / table ---------- */
.prose{max-width:38em;font-size:17px;line-height:1.85}
.prose h2{font-size:clamp(22px,3vw,28px);margin:2em 0 .6em}
.prose h3{font-size:20px;margin:1.6em 0 .5em}
.prose p{margin-bottom:1.1em}
.prose ul,.prose ol{margin:0 0 1.2em 1.2em;padding:0;list-style:disc}
.prose li{margin-bottom:.5em}
.prose a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
.section--paper .prose a{color:#0d6b52}

.data-table{width:100%;font-size:15px}
.data-table th,.data-table td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line)}
.data-table th{font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.14em;color:var(--mist)}
.data-table td.num{font-family:var(--font-display);font-size:22px;letter-spacing:-.02em;color:var(--neon)}
.data-table tbody tr:hover{background:rgba(18,70,61,.45)}
.section--paper .data-table th,.section--paper .data-table td{border-color:rgba(16,32,28,.14)}
.section--paper .data-table td.num{color:var(--ink)}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(140deg,var(--stand),var(--night));
  aspect-ratio:16/9;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.72) contrast(1.06) brightness(.86);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--duo{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:10px;
  aspect-ratio:auto;
  background:none;
  border:0;
  border-radius:0;
}
.media-frame__cell{
  overflow:hidden;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--night),var(--stand));
  aspect-ratio:4/5;
}
.media-frame__cell img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) brightness(.85)}
.media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 18px;
  background:linear-gradient(0deg,rgba(10,46,40,.94),rgba(10,46,40,0));
  color:var(--neon);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
}

/* ---------- reveal ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .header-top__aside--start{display:none}
  .header-top__inner{grid-template-columns:auto minmax(0,1fr) auto}
  .masthead{text-align:center}
  .footer-main{grid-template-columns:1fr}
  .grid--aside{grid-template-columns:minmax(160px,200px) minmax(0,1fr)}
}

@media (max-width:900px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--aside{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
}

@media (max-width:720px){
  .header-top{padding:16px 0 12px}
  .header-top__inner{grid-template-columns:1fr;gap:14px}
  .header-top__aside--end{justify-content:center;flex-wrap:wrap}
  .masthead__line{letter-spacing:.14em}

  .header-nav__inner{min-height:54px;justify-content:center}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;
    top:100%;left:0;right:0;
    background:var(--night);
    border-top:1px solid var(--line);
    box-shadow:0 22px 44px rgba(0,0,0,.55);
    padding:6px 0 14px;
  }
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{padding:14px 22px;font-size:17px}
  .site-nav__link[aria-current="page"]::after{
    left:8px;
    top:50%;
    bottom:auto;
    width:3px;
    height:18px;
    transform:translateY(-50%) skewY(-14deg);
  }

  .footer-cols{grid-template-columns:1fr 1fr}
  .footer-meta__inner{flex-direction:column;align-items:flex-start}
  .topic-list__link{grid-template-columns:auto minmax(0,1fr);row-gap:6px}
  .topic-list__arrow{display:none}
  .media-frame--duo{grid-template-columns:1fr}
}

@media (max-width:520px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr}
  .live-dot{font-size:11px}
  .btn{padding:9px 16px;font-size:13px}
}

/* ---------- reduced motion ---------- */
@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}
  .to-top{transition:none}
}