/* ==========================================================================
   乐竞看台 · 共享样式 /assets/site.css
   夜蓝场底 + 荧光青绿信号 + 矿物点缀，展览画册式留白与计分牌数字
   ========================================================================== */

:root{
  --night:#0B1026;
  --deck:#121A38;
  --slate:#1E2A47;
  --signal:#2AF5B0;
  --signal-soft:#8CF7D6;
  --live:#FF5A36;
  --paper-text:#ECE9E1;
  --mist:#98A2B8;
  --moss:#6E8156;
  --clay:#C4794A;
  --paper:#F4F1E8;
  --ink:#0B1026;

  --line:rgba(42,245,176,.18);
  --line-soft:rgba(236,233,225,.10);

  --r-card:24px;
  --r-lg:28px;
  --r-pill:999px;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.2vw,28px);
  --sp-section:clamp(56px,8vw,120px);

  --font-display:"Oswald","Archivo Narrow","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

/* ---------- 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{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

/* ---------- 基础中文排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(1100px 620px at 88% -12%, rgba(42,245,176,.09), transparent 62%),
    radial-gradient(820px 520px at 2% 0%, rgba(110,129,86,.16), transparent 68%);
  background-repeat:no-repeat;
  color:var(--paper-text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:700;line-height:1.12;letter-spacing:.02em}
p+p{margin-top:1.2em}
strong{color:#fff}

.mono,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.01em}
.num-lg{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(40px,7vw,92px);line-height:1;letter-spacing:-.03em}
.num-live{color:var(--live)}
.num-signal{color:var(--signal)}
.muted{color:var(--mist)}
.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}

:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:8px}
body.is-locked{overflow:hidden}

.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

/* ==========================================================================
   页头：双层看台
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:90}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;z-index:3;
  background:linear-gradient(90deg,var(--signal),var(--signal-soft));
  transform:scaleX(0);transform-origin:0 50%;
  box-shadow:0 0 12px rgba(42,245,176,.65);
  pointer-events:none;
}

.skip-link{
  position:absolute;left:var(--gutter);top:-96px;z-index:130;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--signal);color:#04170F;font-size:14px;font-weight:600;
  transition:top .18s ease;
}
.skip-link:focus{top:12px}

/* 上层信息条 */
.header-wire{
  height:36px;overflow:hidden;
  background:#080C1E;
  border-bottom:1px solid rgba(236,233,225,.07);
  transition:height .26s ease,opacity .2s ease;
}
.header-wire__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:36px;
}
.header-wire__brand{
  font-family:var(--font-display);font-size:12.5px;letter-spacing:.06em;
  color:rgba(236,233,225,.72);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.header-wire__status{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-size:12.5px;color:var(--signal);letter-spacing:.02em;
}
.live-dot{
  width:7px;height:7px;border-radius:50%;background:var(--live);
  animation:pulse-live 2.4s ease-out infinite;
}
@keyframes pulse-live{
  0%{box-shadow:0 0 0 0 rgba(255,90,54,.55)}
  70%{box-shadow:0 0 0 9px rgba(255,90,54,0)}
  100%{box-shadow:0 0 0 0 rgba(255,90,54,0)}
}
.site-header[data-compact="true"] .header-wire{height:0;opacity:0;border-color:transparent}

/* 下层导航条 */
.header-deck{
  background:rgba(11,16,38,.97);
  border-bottom:1px solid var(--line);
  transition:background-color .26s ease,box-shadow .26s ease;
}
.header-deck__inner{display:flex;align-items:center;gap:16px;min-height:66px;padding-block:10px}

.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__glyph{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--font-display);font-size:15px;font-weight:700;letter-spacing:.04em;
  color:#04170F;
  background:linear-gradient(150deg,var(--signal-soft),var(--signal) 62%);
  box-shadow:0 0 0 1px rgba(42,245,176,.35),0 10px 24px -14px rgba(42,245,176,.9);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-family:var(--font-display);font-size:17px;font-weight:700;letter-spacing:.08em;line-height:1.2}
.brand__sub{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--mist);line-height:1.3}

.main-nav{display:flex;align-items:center;flex:1 1 auto;min-width:0}
.main-nav__list{display:flex;align-items:center;gap:2px}
.nav-pill{
  position:relative;display:inline-block;white-space:nowrap;
  padding:8px 12px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:13.5px;line-height:1.35;color:var(--mist);
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.nav-pill:hover{color:var(--paper-text);background:rgba(42,245,176,.07);border-color:rgba(42,245,176,.16)}
.nav-pill[aria-current="page"]{
  color:var(--paper-text);background:rgba(42,245,176,.10);border-color:rgba(42,245,176,.26);
}
.nav-pill[aria-current="page"]::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--signal);
}

.nav-panel{display:none}
.nav-panel__title{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--moss);margin-bottom:12px;
}
.nav-panel__actions{display:flex;flex-direction:column;gap:10px}

.quick-rail{display:flex;align-items:center;gap:6px;flex:0 0 auto}
.quick-rail li{display:flex}
.quick-chip{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap;
  padding:7px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(30,42,71,.55);
  font-size:12.5px;color:rgba(236,233,225,.88);
  transition:border-color .18s ease,background-color .18s ease,color .18s ease;
}
.quick-chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--signal);opacity:.85}
.quick-chip:hover{border-color:rgba(42,245,176,.5);background:rgba(42,245,176,.12);color:#fff}

.header-cta{display:flex;align-items:center;gap:8px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:9px;padding:9px 15px;border-radius:var(--r-pill);
  border:1px solid rgba(42,245,176,.28);background:rgba(42,245,176,.08);
  font-size:13px;color:var(--paper-text);
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:var(--signal);transition:transform .22s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child{transform:translateY(-3px) rotate(-45deg)}

/* 桌面增强 */
@media (min-width:1040px){
  .header-deck{
    background:rgba(11,16,38,.82);
    -webkit-backdrop-filter:blur(16px) saturate(140%);
    backdrop-filter:blur(16px) saturate(140%);
  }
  .site-header[data-compact="true"] .header-deck{
    background:rgba(8,12,30,.95);
    box-shadow:0 22px 44px -30px rgba(0,0,0,.95);
  }
}

/* 平板与手机：抽屉导航 + 底部胶囊条 */
@media (max-width:1039px){
  body{padding-bottom:76px}

  .header-deck__inner{min-height:60px;gap:12px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}

  .quick-rail{
    position:fixed;left:0;right:0;bottom:0;z-index:96;
    gap:8px;justify-content:space-between;
    padding:9px var(--gutter) calc(9px + env(safe-area-inset-bottom));
    background:rgba(8,12,30,.98);
    border-top:1px solid var(--line);
  }
  .quick-rail li{flex:1 1 0}
  .quick-chip{width:100%;padding:9px 8px;font-size:12.5px}
  .quick-chip::before{display:none}

  .main-nav{
    position:fixed;inset:0;z-index:88;
    display:flex;flex-direction:column;gap:22px;
    padding:112px var(--gutter) 128px;
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(11,16,38,.99) 0%,rgba(11,16,38,.97) 58%,rgba(8,12,30,.99) 100%);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
  }
  .main-nav[data-open="true"]{opacity:1;visibility:visible;transform:none}

  .main-nav__list{flex-direction:column;align-items:stretch;gap:8px;counter-reset:navindex}
  .main-nav__list li{width:100%}
  .nav-pill{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:14px 18px;border-radius:18px;font-size:16px;
    background:rgba(18,26,56,.62);border-color:rgba(236,233,225,.07);
  }
  .nav-pill::before{
    counter-increment:navindex;content:"0" counter(navindex);
    font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--moss);
  }
  .nav-pill[aria-current="page"]::after{display:none}
  .nav-pill[aria-current="page"]{
    background:rgba(42,245,176,.12);border-color:rgba(42,245,176,.4);
    box-shadow:inset 3px 0 0 var(--signal);
  }
  .nav-panel{display:flex;flex-direction:column;margin-top:auto}
}

@media (max-width:560px){
  .header-wire__brand{font-size:11px;letter-spacing:.02em}
  .header-wire__status{font-size:11.5px}
  .brand__sub{display:none}
}

/* ==========================================================================
   通用按钮
   ========================================================================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:14px;font-weight:600;letter-spacing:.02em;line-height:1.2;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{
  background:var(--signal);color:#04170F;
  box-shadow:0 14px 32px -18px rgba(42,245,176,.95);
}
.btn--primary:hover{background:var(--signal-soft);transform:translateY(-1px)}
.btn--ghost{border-color:rgba(236,233,225,.22);color:var(--paper-text)}
.btn--ghost:hover{border-color:var(--signal);color:var(--signal);background:rgba(42,245,176,.08)}
.btn--sm{padding:8px 15px;font-size:13px}
.btn--block{width:100%}

/* ==========================================================================
   页脚：画册封底
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(72px,10vw,140px);
  padding-block:clamp(48px,6vw,80px) 0;
  background:
    radial-gradient(900px 420px at 88% 0%, rgba(42,245,176,.08), transparent 62%),
    linear-gradient(180deg,#0A0F24 0%,#080C1E 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,var(--signal),rgba(42,245,176,.08) 42%,transparent);
}

.footer-masthead{padding-bottom:clamp(28px,4vw,52px);border-bottom:1px solid var(--line-soft)}
.footer-eyebrow{margin-bottom:0}
.idx{font-family:var(--font-mono);color:var(--clay);letter-spacing:.1em}
.footer-wordmark{
  margin-top:12px;
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(52px,11vw,132px);line-height:.95;letter-spacing:.05em;
  color:rgba(236,233,225,.07);
  -webkit-text-stroke:1px rgba(42,245,176,.34);
}
.footer-tagline{margin-top:14px;font-size:14px;color:var(--mist);max-width:46ch}

.footer-body{
  display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1.05fr);
  gap:clamp(28px,5vw,72px);
  padding-block:clamp(28px,4vw,52px);
}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.foot-col__title{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--mist);
  padding-bottom:11px;margin-bottom:12px;
  border-bottom:1px solid var(--line-soft);
}
.foot-col__title::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--moss)}
.foot-col__list{display:flex;flex-direction:column;gap:2px}
.foot-link{
  display:inline-block;padding:5px 0;font-size:14px;color:rgba(236,233,225,.82);
  transition:color .18s ease,transform .18s ease;
}
.foot-link:hover{color:var(--signal);transform:translateX(3px)}

.footer-contact{
  padding:clamp(18px,2.4vw,26px);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(18,26,56,.85),rgba(11,16,38,.75));
}
.contact-list{display:flex;flex-direction:column;gap:12px}
.contact-list__item{display:flex;flex-direction:column;gap:3px}
.contact-list__label{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--moss);
}
.contact-list__value{font-size:14px;color:var(--paper-text);word-break:break-all}
.contact-note{margin-top:16px;font-size:12.5px;line-height:1.7;color:var(--mist)}

.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-block:22px;border-top:1px solid var(--line-soft);
}
.footer-legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mist)}
.footer-mini{display:flex;flex-wrap:wrap;gap:18px}
.footer-mini a{font-size:12.5px;color:rgba(236,233,225,.74);transition:color .18s ease}
.footer-mini a:hover{color:var(--signal)}

@media (max-width:900px){
  .footer-body{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}
@media (max-width:600px){
  .footer-cols{grid-template-columns:1fr}
  .footer-legal{font-size:11.5px}
}

/* ==========================================================================
   通用页面组件
   ========================================================================== */
.section{position:relative;padding-block:var(--sp-section)}
.section--tight{padding-block:clamp(28px,4vw,56px)}
.section--paper{background:var(--paper);color:var(--ink)}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper .sec-title{color:var(--ink)}
.section--paper .lede{color:#3B4661}
.section--paper .muted{color:#6B7488}
.section--paper .eyebrow{color:#5B6478}
.section--paper .eyebrow::before{background:var(--clay)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mist);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--moss)}
.sec-title{font-size:clamp(28px,4.4vw,54px);line-height:1.06;letter-spacing:.01em;margin-top:14px}
.lede{max-width:62ch;margin-top:16px;font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:rgba(236,233,225,.82)}

.divider{height:1px;border:0;margin-block:clamp(28px,4vw,56px);
  background:linear-gradient(90deg,rgba(42,245,176,.42),rgba(42,245,176,.06) 46%,transparent)}

.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.rail-layout{
  display:grid;grid-template-columns:minmax(200px,262px) minmax(0,1fr);
  gap:clamp(24px,4vw,56px);align-items:start;
}

.card{
  position:relative;overflow:hidden;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(18,26,56,.92),rgba(13,19,42,.92));
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:rgba(42,245,176,.42);transform:translateY(-2px)}
.card--paper{background:var(--paper);color:var(--ink);border-color:rgba(11,16,38,.14)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:11.5px;line-height:1.5;letter-spacing:.06em;
  border:1px solid rgba(42,245,176,.3);color:var(--signal);background:rgba(42,245,176,.08);
}
.tag--clay{border-color:rgba(196,121,74,.5);color:#E2A377;background:rgba(196,121,74,.14)}
.tag--moss{border-color:rgba(110,129,86,.6);color:#A9BE8B;background:rgba(110,129,86,.16)}
.tag--live{border-color:rgba(255,90,54,.5);color:var(--live);background:rgba(255,90,54,.12)}

.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3.4vw,40px);line-height:1;color:var(--signal)}
.stat__label{font-size:12px;letter-spacing:.08em;color:var(--mist)}

/* 图片容器（页面阶段放置赛场图） */
.media{display:block}
.media__frame{
  position:relative;overflow:hidden;aspect-ratio:16/9;
  border:1px solid rgba(42,245,176,.16);border-radius:var(--r-card);
  background:linear-gradient(140deg,#121A38 0%,#0B1026 70%);
}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover}
.media__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(42,245,176,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,245,176,.10) 1px, transparent 1px);
  background-size:48px 48px,48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.media__caption{margin-top:10px;font-size:12.5px;line-height:1.6;color:var(--mist)}

/* 面包屑 */
.crumbs{margin-bottom:clamp(18px,2.4vw,28px)}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--mist)}
.crumbs__item{display:inline-flex;align-items:center;gap:8px}
.crumbs__item+.crumbs__item::before{content:"/";color:rgba(236,233,225,.26)}
.crumbs__item a:hover{color:var(--signal)}
.crumbs__item [aria-current="page"]{color:var(--paper-text)}

/* 长文 */
.prose{max-width:74ch;font-size:17px;line-height:1.85;color:rgba(236,233,225,.86)}
.prose p+p{margin-top:1.2em}
.prose h2{margin:2.2em 0 .7em;font-size:clamp(22px,2.6vw,30px)}
.prose h3{margin:1.8em 0 .6em;font-size:clamp(18px,2vw,22px)}
.prose ul,.prose ol{margin:1.1em 0;padding-left:1.4em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.4em 0}
.prose a{color:var(--signal);border-bottom:1px solid rgba(42,245,176,.35)}
.prose strong{color:#fff}
.section--paper .prose{color:#1E2A47}
.section--paper .prose strong{color:#0B1026}
.section--paper .prose a{color:#0F7A57;border-bottom-color:rgba(15,122,87,.35)}

/* 滚动显现协议 */
[data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .6s cubic-bezier(.22,.7,.3,1),transform .6s cubic-bezier(.22,.7,.3,1);
}
[data-reveal].is-in{opacity:1;transform:none}

/* 响应式栅格 */
@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rail-layout{grid-template-columns:1fr}
}
@media (max-width:600px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
}

/* 无障碍：减少动态 */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .live-dot{animation:none !important}
  [data-reveal]{opacity:1 !important;transform:none !important}
}