/* ============================================================
   飞亚体育 · 共享样式表 /assets/site.css
   夜间赛场指挥中心：炭黑底 + 深墨绿面板 + 荧光青信号 + 信号橙检索
   ============================================================ */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,p,ul,ol,figure,dl,dd,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;}
button{font:inherit;color:inherit;}
table{border-collapse:collapse;}

/* ---------- tokens ---------- */
:root{
  --ink:#080D0B;
  --panel:#0C241C;
  --moss:#174536;
  --cyan:#37F0C0;
  --cyan-soft:#B8F7E6;
  --signal:#FF8A3D;
  --wine:#5C2033;
  --indigo:#2E2A63;
  --paper:#F7F2E7;
  --muted:#6E8F85;

  --line:rgba(55,240,192,.16);
  --line-strong:rgba(55,240,192,.34);
  --glass:rgba(12,36,28,.62);
  --shadow:0 22px 48px -30px rgba(0,0,0,.95);

  --shell:1240px;
  --pad:clamp(16px,4vw,40px);
  --radius:3px;
  --ease:cubic-bezier(.2,.7,.3,1);

  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- base typography ---------- */
html{font-size:100%;}
body{
  min-height:100vh;
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.7;
  letter-spacing:.01em;
  background:
    radial-gradient(1180px 620px at 84% -12%,rgba(55,240,192,.11),transparent 62%),
    radial-gradient(900px 520px at -6% 6%,rgba(46,42,99,.38),transparent 60%),
    var(--ink);
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(55,240,192,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(55,240,192,.05) 1px,transparent 1px);
  background-size:74px 74px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 76%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 76%);
}

h1,h2,h3{font-weight:900;line-height:1.16;letter-spacing:-.03em;font-stretch:95%;}
h1{font-size:clamp(30px,5vw,54px);}
h2{font-size:clamp(24px,3.4vw,38px);}
h3{font-size:clamp(18px,2vw,23px);letter-spacing:-.01em;}
p{max-width:70ch;}
strong{color:var(--paper);font-weight:700;}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:2px;
}
::selection{background:var(--cyan);color:#04120E;}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-72px;
  z-index:300;
  padding:10px 18px;
  background:var(--cyan);
  color:#04120E;
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:14px;}

/* ============================================================
   HEADER · 仪器条
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(8,13,11,.97) 0%,rgba(12,36,28,.94) 100%);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(125%);
  backdrop-filter:blur(14px) saturate(125%);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-condensed{box-shadow:0 16px 34px -28px rgba(0,0,0,.95);}

.site-header__inner{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--pad);
  min-height:68px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  transition:min-height .2s var(--ease);
}
.site-header.is-condensed .site-header__inner{min-height:56px;}

/* brand */
.brand{
  order:1;
  margin-right:auto;
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
  flex:0 0 auto;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:42px;
  height:34px;
  background:var(--cyan);
  color:#04120E;
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);
  transition:width .2s var(--ease),height .2s var(--ease);
}
.site-header.is-condensed .brand__mark{width:36px;height:29px;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:19px;font-weight:900;letter-spacing:-.01em;}
.brand__descriptor{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
}
.brand--footer{margin-right:0;align-items:flex-start;}

/* tools */
.site-header__tools{
  order:2;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.quick-search{
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--cyan-soft);
  text-decoration:none;
  border:1px dashed var(--line-strong);
  border-radius:2px;
  background:rgba(55,240,192,.05);
  white-space:nowrap;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.quick-search:hover{background:rgba(55,240,192,.13);border-color:var(--cyan);color:#fff;}

/* nav toggle */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 13px;
  background:rgba(23,69,54,.6);
  color:var(--cyan-soft);
  border:1px solid var(--line-strong);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{background:rgba(55,240,192,.16);color:#fff;}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle__bars span{
  display:block;
  height:2px;
  width:100%;
  background:currentColor;
  transition:transform .18s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg);}
.nav-toggle__label{line-height:1;}

/* nav */
.site-nav{
  order:3;
  flex-basis:100%;
  display:none;
}
.site-nav[data-open]{
  display:block;
  margin-top:4px;
  padding-top:6px;
  border-top:1px solid var(--line);
}
.site-nav__list{display:flex;flex-direction:column;gap:2px;padding-bottom:16px;}
.site-nav__link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:11px 12px;
  font-size:15px;
  text-decoration:none;
  color:var(--paper);
  border-left:2px solid transparent;
  border-radius:2px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.site-nav__index{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--muted);
}
.site-nav__link:hover{background:rgba(55,240,192,.09);color:#fff;}
.site-nav__link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(55,240,192,.11);
  border-left-color:var(--cyan);
}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--cyan);}

/* scroll meter */
.scroll-meter{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:rgba(55,240,192,.12);
  overflow:hidden;
}
.scroll-meter span{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan),var(--signal));
  transition:width .1s linear;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  border:1px solid transparent;
  border-radius:2px;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn--signal{background:var(--signal);color:#1A0E06;border-color:var(--signal);}
.btn--signal:hover{background:#FFA263;border-color:#FFA263;}
.btn--outline{background:transparent;color:var(--cyan-soft);border-color:var(--line-strong);}
.btn--outline:hover{background:rgba(55,240,192,.1);border-color:var(--cyan);color:#fff;}
.btn--ghost{background:rgba(247,242,231,.08);color:var(--paper);border-color:rgba(247,242,231,.18);}
.btn--ghost:hover{background:rgba(247,242,231,.16);}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

/* ============================================================
   FOOTER · 资料索引
   ============================================================ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:0;
  background:linear-gradient(180deg,var(--panel) 0%,#081310 100%);
  border-top:1px solid var(--line-strong);
}
.site-footer__grid{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(36px,6vw,64px) var(--pad) 30px;
  display:grid;
  gap:32px 26px;
  grid-template-columns:1fr;
}
.site-footer__brand{display:grid;gap:16px;align-content:start;}
.site-footer__note{
  font-size:14px;
  line-height:1.65;
  color:var(--muted);
  max-width:34ch;
}
.site-footer__service{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cyan-soft);
}
.site-footer__col{display:block;}
.site-footer__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
}
.site-footer__title::before{
  content:"";
  width:16px;
  height:1px;
  background:var(--cyan);
  opacity:.7;
}
.site-footer__list{display:grid;gap:10px;}
.site-footer__link{
  display:inline-block;
  font-size:15px;
  color:var(--cyan-soft);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.site-footer__link:hover{color:#fff;border-bottom-color:var(--cyan);}
.site-footer__contact{display:block;}
.site-footer__list--contact{gap:12px;}
.contact-item{
  display:grid;
  gap:2px;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(55,240,192,.16);
}
.contact-item:last-child{border-bottom:0;padding-bottom:0;}
.contact-item__key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--muted);
}
.contact-item__value{
  font-size:14px;
  color:var(--paper);
  word-break:break-all;
}
.site-footer__meta{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:18px var(--pad) 32px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid rgba(55,240,192,.12);
}
.site-footer__legal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--muted);
  max-width:none;
}

/* ============================================================
   SHARED LAYOUT
   ============================================================ */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
  position:relative;
  z-index:1;
}
.section{padding-block:clamp(40px,7vw,86px);position:relative;z-index:1;}
.section + .section{border-top:1px solid rgba(55,240,192,.1);}
.section-head{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:6px 18px;
  align-items:start;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-head__text{display:grid;gap:6px;}
.section-num{
  font-family:var(--font-mono);
  font-size:clamp(28px,5vw,54px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:rgba(55,240,192,.22);
  -webkit-text-stroke:1px rgba(55,240,192,.55);
  font-variant-numeric:tabular-nums;
}
.section-title{font-size:clamp(24px,3.4vw,38px);}
.eyebrow{
  display:block;
  margin-bottom:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
}
.lede{
  max-width:64ch;
  margin-top:8px;
  font-size:clamp(15px,1.6vw,17px);
  color:var(--cyan-soft);
}

/* ---------- panels ---------- */
.panel{
  position:relative;
  padding:clamp(18px,2.6vw,30px);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel--glass{
  background:var(--glass);
  border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  box-shadow:var(--shadow);
}
.panel--wine{background:linear-gradient(152deg,var(--wine) 0%,#2E1019 100%);border-color:rgba(200,90,130,.3);}
.panel--indigo{background:linear-gradient(152deg,var(--indigo) 0%,#171536 100%);border-color:rgba(120,110,220,.32);}

/* ---------- grids ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,26px);}
.grid--2{grid-template-columns:1fr;}
.grid--3{grid-template-columns:1fr;}
.grid--sidebar{grid-template-columns:1fr;align-items:start;}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{padding-top:20px;position:relative;z-index:1;}
.breadcrumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--pad);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.breadcrumbs__list li{display:flex;align-items:center;gap:8px;}
.breadcrumbs__list li + li::before{content:"/";color:rgba(55,240,192,.5);}
.breadcrumbs__link{color:var(--cyan-soft);text-decoration:none;}
.breadcrumbs__link:hover{color:var(--cyan);}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan-soft);
  background:rgba(55,240,192,.06);
  border:1px solid var(--line-strong);
  border-radius:2px;
  white-space:nowrap;
}
.tag--orange{color:var(--signal);background:rgba(255,138,61,.1);border-color:rgba(255,138,61,.5);}
.tag--indigo{color:#C9C4FF;background:rgba(46,42,99,.6);border-color:rgba(120,110,220,.5);}
.tag--wine{color:#FFC7D8;background:rgba(92,32,51,.6);border-color:rgba(200,90,130,.45);}

/* ---------- stats ---------- */
.stat{display:grid;gap:4px;}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(30px,4.4vw,52px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.stat__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}

/* ---------- tabs ---------- */
.tabs{display:grid;gap:18px;}
.tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:6px;
  background:rgba(12,36,28,.72);
  border:1px solid rgba(55,240,192,.18);
  border-radius:var(--radius);
}
.tabs__tab{
  padding:9px 14px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--cyan-soft);
  background:transparent;
  border:1px solid transparent;
  border-radius:2px;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.tabs__tab:hover{background:rgba(55,240,192,.1);}
.tabs__tab[aria-selected="true"]{background:var(--cyan);color:#04120E;font-weight:700;}
.tabs__panel[hidden]{display:none;}
.tabs__panel{animation:tabs-in .18s var(--ease) both;}
@keyframes tabs-in{from{opacity:.35;}to{opacity:1;}}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 10;
  background:linear-gradient(142deg,#0F2E24 0%,#08110E 100%);
  border:1px solid rgba(55,240,192,.18);
  border-radius:var(--radius);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(55,240,192,.08) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(55,240,192,.08) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.55;
}
.media-frame > img,
.media-frame > picture,
.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__caption{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--muted);
}

/* ---------- tables ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid rgba(55,240,192,.16);
  border-radius:var(--radius);
  background:rgba(12,36,28,.5);
}
.data-table{width:100%;min-width:540px;font-size:14px;text-align:left;}
.data-table th{
  padding:12px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  background:rgba(23,69,54,.6);
  border-bottom:1px solid rgba(55,240,192,.2);
  white-space:nowrap;
}
.data-table td{
  padding:12px 14px;
  color:var(--cyan-soft);
  border-bottom:1px solid rgba(55,240,192,.1);
}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody tr:hover td{background:rgba(55,240,192,.06);}
.tabular{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  color:var(--paper);
  letter-spacing:0;
}

/* ---------- reveal ---------- */
[data-reveal]{transition:opacity .24s var(--ease),transform .24s var(--ease);}
[data-reveal].is-pending{opacity:0;transform:translateY(14px);}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (min-width:640px){
  .site-footer__grid{grid-template-columns:repeat(2,1fr);}
  .site-footer__brand{grid-column:1 / -1;}
  .grid--2{grid-template-columns:repeat(2,1fr);}
  .grid--3{grid-template-columns:repeat(2,1fr);}
}

@media (min-width:768px){
  .section-head{gap:10px 26px;}
}

@media (min-width:900px){
  .site-footer__grid{grid-template-columns:1.5fr .9fr .9fr .9fr;}
  .site-footer__contact{grid-column:1 / -1;}
}

@media (min-width:1024px){
  .site-header__inner{flex-wrap:nowrap;min-height:72px;}
  .brand{margin-right:4px;}
  .site-nav{
    order:2;
    display:block;
    flex:1 1 auto;
    flex-basis:auto;
    margin-top:0;
  }
  .site-nav[data-open]{display:block;margin-top:0;padding-top:0;border-top:0;}
  .site-nav__list{
    flex-direction:row;
    flex-wrap:wrap;
    justify-content:flex-end;
    gap:2px;
    padding-bottom:0;
  }
  .site-nav__link{
    padding:8px 10px;
    font-size:14px;
    border-left:0;
    border-bottom:2px solid transparent;
    border-radius:2px 2px 0 0;
  }
  .site-nav__link[aria-current="page"]{
    border-left-color:transparent;
    border-bottom-color:var(--cyan);
    background:rgba(55,240,192,.08);
  }
  .site-header__tools{order:3;flex-wrap:nowrap;}
  .nav-toggle{display:none;}

  .grid--sidebar{grid-template-columns:320px minmax(0,1fr);}
  .grid--3{grid-template-columns:repeat(3,1fr);}

  .site-footer__grid{grid-template-columns:1.6fr .8fr .8fr .8fr 1.4fr;}
  .site-footer__brand{grid-column:auto;}
  .site-footer__contact{grid-column:auto;}
}

/* ---------- 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;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important;}
  .scroll-meter span{transition:none;}
}