/* =========================================================
   J9体育 · 共享样式表 /assets/site.css
   夜间球场数据指挥台：深墨绿底 + 荧光青柠高亮 + 暖橙节点
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px;}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{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{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid #B8FF2E;outline-offset:3px;border-radius:6px;}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#0B2A22;
  --charcoal:#101413;
  --panel:#1B2422;
  --lime:#B8FF2E;
  --lime-soft:#E8FF7A;
  --orange:#FF8A3D;
  --ice:#F2F7F4;
  --mist:#7FA99B;
  --teal:#1F6F63;
  --amber:#FFB36B;
  --grid:#2E3A37;

  --shell:1360px;
  --radius-s:10px;
  --radius-m:18px;
  --radius-l:28px;
  --radius-pill:999px;

  --font-sans:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --shadow-soft:0 18px 48px rgba(0,0,0,.42);
  --edge:1px solid var(--grid);
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ice);
  letter-spacing:.01em;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 660px at 84% -14%, rgba(31,111,99,.55), transparent 62%),
    radial-gradient(760px 520px at -10% 22%, rgba(255,138,61,.10), transparent 58%),
    linear-gradient(180deg, rgba(11,42,34,.35), rgba(16,20,19,.85) 90%);
}

h1,h2,h3,h4{font-weight:800;line-height:1.26;letter-spacing:-.022em;color:var(--ice);}
h1{font-size:clamp(30px,5vw,52px);}
h2{font-size:clamp(24px,3.4vw,36px);}
h3{font-size:clamp(19px,2.2vw,24px);}
h4{font-size:18px;}

.num,
.stat__value,
.anchor-stat__value,
.contact-item__value,
.footer-meta__copy,
.footer-meta__icp,
.section__eyebrow,
.breadcrumb{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}

::selection{background:rgba(184,255,46,.28);color:var(--ice);}

/* ---------- 4. 布局工具 ---------- */
.shell{width:min(100% - 40px,var(--shell));margin-inline:auto;}
.section{padding:clamp(56px,7vw,104px) 0;}
.section--tight{padding:clamp(32px,4vw,60px) 0;}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px clamp(20px,3vw,44px);margin-bottom:clamp(24px,3vw,44px);}
.section__eyebrow{font-size:12px;letter-spacing:.34em;text-transform:uppercase;color:var(--lime);}
.section__title{flex:1 1 auto;min-width:min(100%,260px);}
.section__note{flex:0 1 38em;font-size:15px;color:var(--mist);}

.v-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-size:12px;
  letter-spacing:.32em;
  color:var(--mist);
  align-self:flex-start;
}

.grid{display:grid;gap:clamp(18px,2.2vw,28px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--rail{grid-template-columns:minmax(220px,280px) minmax(0,1fr);align-items:start;}
.rail{position:sticky;top:104px;align-self:start;}

.h-scroll{
  display:flex;
  gap:clamp(14px,1.8vw,22px);
  overflow-x:auto;
  padding:6px 4px 18px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  mask-image:linear-gradient(to right,#000 0,#000 calc(100% - 44px),transparent 100%);
  -webkit-mask-image:linear-gradient(to right,#000 0,#000 calc(100% - 44px),transparent 100%);
}
.h-scroll>*{flex:0 0 min(360px,78%);scroll-snap-align:start;}
.h-scroll::-webkit-scrollbar{height:6px;}
.h-scroll::-webkit-scrollbar-thumb{background:var(--grid);border-radius:99px;}

.prose{max-width:40em;font-size:16px;line-height:1.78;color:rgba(242,247,244,.86);}
.prose p+p{margin-top:1.1em;}
.prose strong{color:var(--ice);font-weight:700;}

/* ---------- 5. 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:active{transform:translateY(0);}
.btn--lime{background:var(--lime);color:#0B1A15;}
.btn--lime:hover{background:var(--lime-soft);transform:translateY(-1px);}
.btn--ghost{background:rgba(242,247,244,.04);border-color:var(--grid);color:var(--ice);}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn--orange{background:var(--orange);color:#2A1206;}
.btn--orange:hover{background:var(--amber);transform:translateY(-1px);}
.btn--sm{padding:8px 16px;font-size:13px;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--grid);color:var(--mist);
  font-size:12px;letter-spacing:.06em;
}
.tag--lime{border-color:rgba(184,255,46,.4);background:rgba(184,255,46,.08);color:var(--lime);}
.tag--orange{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.08);color:var(--orange);}

/* ---------- 6. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:16px;top:-72px;z-index:200;
  padding:10px 20px;border-radius:var(--radius-pill);
  background:var(--lime);color:#0B1A15;
  font-size:14px;font-weight:800;
  transition:top .2s ease;
}
.skip-link:focus{top:12px;}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(11,42,34,.94),rgba(11,42,34,.66) 72%,rgba(11,42,34,0));
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
  border-bottom:1px solid rgba(46,58,55,.6);
  transition:border-color .25s ease;
}
.site-header__inner{
  position:relative;
  display:flex;align-items:center;gap:16px;
  width:min(100% - 32px,var(--shell));
  margin-inline:auto;
  padding:14px 0;
  transition:padding .25s ease;
}
.site-header.is-condensed .site-header__inner{padding:9px 0;}

.brand-block{display:flex;align-items:center;gap:14px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ice);}
.brand__mark{
  position:relative;width:22px;height:22px;border-radius:7px;
  background:linear-gradient(150deg,var(--lime),var(--teal));
  box-shadow:0 0 18px rgba(184,255,46,.35);
}
.brand__mark::after{content:"";position:absolute;top:7px;right:7px;width:6px;height:6px;border-radius:50%;background:var(--charcoal);}
.brand__pulse{position:absolute;inset:-6px;border-radius:12px;border:1px solid rgba(184,255,46,.35);animation:pulse 3.2s ease-in-out infinite;}
.brand__name{transition:color .2s ease;}
.brand:hover .brand__name{color:var(--lime);}

@keyframes pulse{
  0%,100%{opacity:.25;transform:scale(.94);}
  50%{opacity:.75;transform:scale(1);}
}

.round-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:var(--radius-pill);
  border:1px solid rgba(184,255,46,.28);background:rgba(184,255,46,.07);
  font-size:12px;letter-spacing:.06em;color:var(--lime-soft);white-space:nowrap;
  transition:opacity .25s ease;
}
.round-chip__dot{width:6px;height:6px;border-radius:50%;background:var(--lime);animation:blip 2.4s ease-out infinite;}
@keyframes blip{
  0%{box-shadow:0 0 0 0 rgba(184,255,46,.55);}
  70%{box-shadow:0 0 0 9px rgba(184,255,46,0);}
  100%{box-shadow:0 0 0 0 rgba(184,255,46,0);}
}
.site-header.is-condensed .round-chip{display:none;}

.site-nav{
  margin-inline:auto;
  padding:5px;border-radius:var(--radius-pill);
  background:linear-gradient(160deg,rgba(27,36,34,.94),rgba(16,20,19,.88));
  border:1px solid var(--grid);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list__item{display:flex;}
.nav-link{
  display:block;padding:9px 16px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:600;color:var(--mist);white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--lime-soft);background:rgba(184,255,46,.10);}
.nav-link[aria-current="page"]{background:var(--lime);color:#0B1A15;font-weight:800;}
.nav-link[aria-current="page"]:hover{background:var(--lime-soft);color:#0B1A15;}

.header-anchor{display:flex;align-items:center;gap:14px;}
.anchor-stat{display:flex;flex-direction:column;line-height:1.15;text-align:right;}
.anchor-stat__label{font-size:11px;letter-spacing:.16em;color:var(--mist);}
.anchor-stat__value{font-size:21px;font-weight:700;color:var(--lime);}
.anchor-stat__unit{margin-left:2px;font-size:12px;color:var(--mist);}
.header-anchor__cta{white-space:nowrap;}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  margin-left:auto;padding:9px 15px;border-radius:var(--radius-pill);
  border:1px solid var(--grid);background:rgba(27,36,34,.92);color:var(--ice);
  font-size:13.5px;font-weight:700;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--lime);}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--lime);transition:background-color .22s ease;}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;
  background:var(--lime);
  transition:transform .22s 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{letter-spacing:.06em;}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:rgba(46,58,55,.45);}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--orange));
}

.to-top{
  position:fixed;right:22px;bottom:26px;z-index:85;
  display:grid;place-items:center;
  width:46px;height:46px;border-radius:50%;
  background:rgba(16,20,19,.94);border:1px solid var(--grid);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--lime);}
.to-top__icon{width:11px;height:11px;border-left:2px solid var(--lime);border-top:2px solid var(--lime);transform:rotate(45deg) translate(1px,1px);}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,6vw,96px);
  background:linear-gradient(180deg,rgba(16,20,19,.6),var(--charcoal) 34%),var(--charcoal);
  border-top:1px solid var(--grid);
  color:var(--mist);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--lime) 0%,rgba(184,255,46,0) 34%,rgba(255,138,61,0) 62%,var(--orange) 100%);
}
.site-footer__inner{width:min(100% - 40px,var(--shell));margin-inline:auto;padding:clamp(44px,5vw,72px) 0 28px;}

.footer-grid{display:grid;gap:clamp(28px,3vw,40px);grid-template-columns:1.5fr repeat(4,minmax(0,1fr));}
.footer-col{min-width:0;}
.footer-col--brand{max-width:320px;}
.footer-brand{display:inline-flex;align-items:center;font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ice);transition:color .2s ease;}
.footer-brand::before{content:"";width:14px;height:14px;margin-right:9px;border-radius:5px;background:linear-gradient(150deg,var(--lime),var(--teal));}
.footer-brand:hover{color:var(--lime);}
.footer-brand__line{margin-top:14px;font-size:14.5px;line-height:1.8;color:var(--mist);}
.footer-brand__meta{margin-top:12px;font-size:12px;letter-spacing:.08em;color:rgba(127,169,155,.85);}
.footer-col__title{margin-bottom:16px;font-size:13px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--ice);}
.footer-list{display:grid;gap:10px;}
.footer-link{display:inline-block;font-size:14.5px;color:var(--mist);transition:color .2s ease,padding-left .2s ease;}
.footer-link:hover{color:var(--lime);padding-left:5px;}

.footer-contact{
  display:flex;flex-wrap:wrap;gap:14px clamp(24px,4vw,56px);
  margin-top:clamp(32px,4vw,52px);padding-top:24px;
  border-top:1px dashed var(--grid);
}
.contact-item{display:flex;align-items:baseline;gap:10px;font-size:14px;}
.contact-item__label{font-size:11.5px;letter-spacing:.18em;color:rgba(127,169,155,.9);}
.contact-item__value{font-size:14px;color:var(--ice);}

.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  margin-top:26px;padding-top:18px;
  border-top:1px solid var(--grid);
  font-size:12.5px;color:rgba(127,169,155,.9);
}
.footer-meta__copy,.footer-meta__icp{letter-spacing:.04em;}

/* ---------- 9. 内容组件 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.04em;color:var(--mist);}
.breadcrumb a{color:var(--mist);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb__sep{color:var(--grid);}

.panel{
  padding:clamp(20px,2.4vw,30px);
  border:1px solid var(--grid);border-radius:var(--radius-l);
  background:linear-gradient(165deg,rgba(27,36,34,.95),rgba(16,20,19,.9));
}
.panel--glow{box-shadow:0 0 0 1px rgba(184,255,46,.08),var(--shadow-soft);}
.panel__title{font-size:17px;font-weight:800;color:var(--ice);}
.panel__note{margin-top:8px;font-size:14px;color:var(--mist);}

.stat{display:flex;flex-direction:column;gap:4px;}
.stat__label{font-size:12px;letter-spacing:.16em;color:var(--mist);}
.stat__value{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.2;color:var(--lime);}
.stat__value--orange{color:var(--orange);}
.stat__unit{margin-left:3px;font-size:14px;color:var(--mist);}

.meter{position:relative;height:8px;border-radius:var(--radius-pill);background:rgba(46,58,55,.9);overflow:hidden;}
.meter__fill{
  display:block;height:100%;width:var(--meter-value,0%);
  border-radius:inherit;
  background:linear-gradient(90deg,var(--teal),var(--lime));
  transition:width .7s var(--ease);
}
.meter__fill--orange{background:linear-gradient(90deg,rgba(255,138,61,.35),var(--orange));}

.data-table-wrap{border:1px solid var(--grid);border-radius:var(--radius-m);overflow-x:auto;background:rgba(27,36,34,.55);}
.data-table{width:100%;font-size:14.5px;min-width:520px;}
.data-table caption{padding:14px 16px 0;text-align:left;font-size:12.5px;letter-spacing:.14em;color:var(--mist);}
.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--grid);}
.data-table thead th{font-size:12px;letter-spacing:.14em;color:var(--mist);background:rgba(16,20,19,.7);white-space:nowrap;}
.data-table tbody tr{transition:background-color .2s ease;}
.data-table tbody tr:hover{background:rgba(184,255,46,.05);}
.data-table tbody tr:last-child th,.data-table tbody tr:last-child td{border-bottom:0;}
.data-table .is-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--lime);}
.data-table .is-num--orange{color:var(--orange);}

.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--grid);border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(31,111,99,.5),rgba(16,20,19,.9));
  aspect-ratio:16/9;
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:4/5;}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 18px;font-size:13px;color:var(--ice);
  background:linear-gradient(180deg,rgba(16,20,19,0),rgba(16,20,19,.9));
}
.media-frame__badge{
  position:absolute;top:14px;left:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(16,20,19,.82);border:1px solid rgba(184,255,46,.35);
  font-size:12px;letter-spacing:.06em;color:var(--lime);
}

.toc{display:grid;gap:6px;}
.toc__title{font-size:12px;letter-spacing:.2em;color:var(--mist);}
.toc a{
  display:block;padding:6px 12px;
  border-left:2px solid var(--grid);
  font-size:14px;color:var(--mist);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.toc a:hover{color:var(--ice);border-color:var(--lime-soft);}
.toc a[aria-current="true"]{color:var(--lime);border-color:var(--lime);background:rgba(184,255,46,.06);}

.tabs{display:inline-flex;gap:4px;padding:4px;border-radius:var(--radius-pill);border:1px solid var(--grid);background:rgba(16,20,19,.72);}
.tabs__btn{padding:8px 18px;border-radius:var(--radius-pill);font-size:13.5px;font-weight:700;color:var(--mist);transition:background-color .2s ease,color .2s ease;}
.tabs__btn:hover{color:var(--lime-soft);}
.tabs__btn[aria-selected="true"]{background:var(--lime);color:#0B1A15;}
.tabs__panel{padding-top:22px;}
.tabs__panel[hidden]{display:none;}

.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .6s ease var(--reveal-delay,0ms),transform .6s var(--ease) var(--reveal-delay,0ms);
}
.js-ready [data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1180px){
  .header-anchor{display:none;}
  .site-nav{margin-left:auto;margin-right:0;}
}

@media (max-width:1080px){
  .grid--rail{grid-template-columns:minmax(0,1fr);}
  .rail{position:static;top:auto;}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:980px){
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:absolute;top:calc(100% + 8px);left:0;right:0;
    margin:0;padding:14px;border-radius:var(--radius-l);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{padding:12px 16px;border-radius:14px;font-size:15px;}
  .round-chip{display:none;}
  .h-scroll>*{flex:0 0 min(320px,86%);}
}

@media (max-width:720px){
  html{scroll-padding-top:88px;}
  .site-header__inner{width:min(100% - 24px,var(--shell));}
  .site-footer__inner{width:min(100% - 28px,var(--shell));}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-col--brand{grid-column:1/-1;max-width:none;}
  .contact-item{width:100%;}
  .section__note{flex-basis:100%;}
}

@media (max-width:480px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .to-top{right:14px;bottom:16px;}
  .data-table{font-size:13.5px;}
}

/* ---------- 11. 动效偏好 ---------- */
@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;
  }
  .js-ready [data-reveal]{opacity:1;transform:none;}
  .meter__fill{transition:none;}
}