/* =========================================================
   易倍体育赛事CN · 共享样式 /assets/site.css
   夜场心跳体系：暮色深蓝打底 / 主场红点状脉冲 / 荧光绿贯通 / 琥珀数据高亮
   ========================================================= */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:112px}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{background:none;border:0;cursor:pointer;font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
input,select,textarea{font:inherit}

/* ---------- tokens ---------- */
:root{
  --ink-900:#0A1626;
  --ink-800:#0F2036;
  --ink-700:#16304C;
  --line:#2A4A6B;
  --line-soft:rgba(42,74,107,.55);
  --red:#E23A2E;
  --red-deep:#7A1F1A;
  --green:#6BFF9E;
  --green-deep:#1F5C3A;
  --amber:#F2B441;
  --text:#EAF2FA;
  --muted:#9AB3C9;
  --dim:#56718C;
  --wrap:1240px;
  --gutter:clamp(16px,4vw,48px);
  --cut:14px;
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,"SFMono-Regular",monospace;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.72,.28,1);
}

/* ---------- base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(120% 78% at 80% -12%, rgba(107,255,158,.10), transparent 56%),
    radial-gradient(96% 72% at 6% -4%, rgba(226,58,46,.15), transparent 58%),
    linear-gradient(180deg,#0A1626 0%,#0A1626 58%,#08111D 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--font-body);
  font-size:clamp(16px,1.05vw,17px);
  line-height:1.75;
  overflow-x:hidden;
}
#main-content{display:block;scroll-margin-top:104px}
:focus-visible{outline:2px solid var(--green);outline-offset:3px}

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

/* ---------- typography ---------- */
h1,h2,h3,h4,.display{font-family:var(--font-display);font-weight:700;line-height:1.06;letter-spacing:.02em}
.display{font-size:clamp(46px,9vw,112px);line-height:.95;font-weight:700;text-transform:uppercase}
h1{font-size:clamp(32px,5vw,48px);line-height:1.05}
h2{font-size:clamp(23px,3vw,28px);font-weight:600}
h3{font-size:clamp(18px,2.2vw,22px);font-weight:600}
p{max-width:70ch}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--green)}
.lede{font-size:clamp(16px,1.5vw,19px);line-height:1.8;color:var(--muted)}
.note{font-size:13px;letter-spacing:.06em;color:var(--dim)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:12px;z-index:200;
  transform:translateY(-180%);
  padding:10px 16px;background:var(--green);color:#06210F;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- heartbeat pulse motif ---------- */
.pulse-rail{position:absolute;left:0;right:0;bottom:0;height:22px;pointer-events:none;opacity:.85}
.pulse-rail--footer{top:0;bottom:auto;height:26px;opacity:1}
.pulse{width:100%;height:100%;overflow:visible}
.pulse__base{fill:none;stroke:rgba(42,74,107,.85);stroke-width:1.2;vector-effect:non-scaling-stroke}
.pulse__glow{
  fill:none;stroke:var(--green);stroke-width:1.6;stroke-linecap:round;
  stroke-dasharray:70 1130;
  filter:drop-shadow(0 0 4px rgba(107,255,158,.45));
  vector-effect:non-scaling-stroke;
  animation:pulse-travel 3.2s linear infinite;
}
.pulse__peak{fill:var(--green);animation:peak-blink 3.2s ease-in-out infinite}
@keyframes pulse-travel{from{stroke-dashoffset:1200}to{stroke-dashoffset:-1200}}
@keyframes peak-blink{0%{opacity:.22}10%{opacity:1}24%{opacity:.22}100%{opacity:.22}}
@keyframes dot-beat{0%,100%{opacity:.5}10%{opacity:1}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(10,22,38,.97),rgba(10,22,38,.88));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-upper{
  max-height:150px;overflow:hidden;
  background:linear-gradient(90deg,rgba(22,48,76,.6),rgba(10,22,38,0) 78%);
  border-bottom:1px solid var(--line-soft);
  transition:max-height .34s var(--ease),opacity .26s ease;
}
.site-header.is-condensed .header-upper{max-height:0;opacity:0;border-bottom-color:transparent}
.header-upper__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(12px,2.4vw,32px);flex-wrap:wrap;padding-block:11px;
}
.brand{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 14px;min-width:0}
.brand__mark{
  font-family:var(--font-display);font-size:20px;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;color:var(--text);
}
.brand__line{font-size:12.5px;letter-spacing:.06em;color:var(--muted)}
.header-stage{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border:1px solid var(--line-soft);background:rgba(22,48,76,.5);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);
  max-width:none;
}
.dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 3px rgba(107,255,158,.16);
  animation:dot-beat 3.2s ease-in-out infinite;
}
.header-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

.header-lower{position:relative}
.header-lower__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 17px;border:1px solid transparent;
  font-size:13.5px;font-weight:600;letter-spacing:.06em;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
}
.btn--primary{background:var(--red);color:#FFF3F1}
.btn--primary:hover{background:var(--red-deep);border-color:var(--red);color:#fff;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line);color:var(--muted);background:rgba(15,32,54,.62)}
.btn--ghost:hover{color:var(--text);border-color:var(--green);background:rgba(31,92,58,.35)}
.btn:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--green)}

/* ---------- navigation ---------- */
.nav{display:flex;align-items:center}
.nav__list{display:flex;align-items:center;gap:clamp(4px,1.6vw,26px);flex-wrap:wrap}
.nav__item{display:flex}
.nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:8px;
  padding:10px 2px;font-size:15px;letter-spacing:.04em;color:var(--muted);
  transition:color .2s var(--ease);
}
.nav__link:hover{color:var(--text)}
.nav__num{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--dim);transition:color .2s var(--ease)}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--green);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.nav__link:hover::after{transform:scaleX(1);background:var(--red)}
.nav__link[aria-current="page"]{color:var(--text);font-weight:600}
.nav__link[aria-current="page"] .nav__num{color:var(--green)}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--green);animation:peak-blink 3.2s ease-in-out infinite}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 13px;border:1px solid var(--line);
  background:rgba(22,48,76,.6);color:var(--text);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--green);color:var(--green)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:currentColor}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}
.nav-toggle__text{line-height:1}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;z-index:80;width:100%;height:2px;
  transform:scaleX(0);transform-origin:left;
  background:linear-gradient(90deg,var(--red),var(--amber) 55%,var(--green));
  pointer-events:none;
}

/* ---------- back to top ---------- */
.back-to-top{
  position:fixed;right:clamp(12px,2vw,28px);bottom:clamp(12px,2vw,28px);z-index:70;
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;
  background:rgba(15,32,54,.94);border:1px solid var(--line);color:var(--text);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),border-color .24s var(--ease);
}
.back-to-top:hover{border-color:var(--green);color:var(--green)}
.back-to-top:hover{border-color:var(--green);color:var(--green)}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,96px);
  padding-top:clamp(38px,5vw,60px);
  background:linear-gradient(180deg,var(--ink-900) 0%,var(--ink-800) 100%);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:clamp(20px,3vw,40px);padding-bottom:clamp(28px,4vw,46px);
}
.footer-brand{max-width:38ch}
.footer-brand__mark{
  font-family:var(--font-display);font-size:22px;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;
}
.footer-brand__line{
  margin-top:8px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.12em;color:var(--green);
}
.footer-brand__meta{margin-top:12px;font-size:14px;color:var(--muted);max-width:34ch}
.footer-col{min-width:0}
.footer-col__title{
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.16em;text-transform:uppercase;color:var(--text);
}
.footer-links li{margin-bottom:10px}
.footer-link{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14.5px;color:var(--muted);
  transition:color .2s var(--ease);
}
.footer-link::before{
  content:"";width:10px;height:1px;background:var(--line);
  transition:width .2s var(--ease),background .2s var(--ease);
}
.footer-link:hover{color:var(--text)}
.footer-link:hover::before{width:18px;background:var(--green)}
.footer-contact{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(14px,2vw,28px);
  padding-block:clamp(20px,3vw,32px);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.footer-contact__item{min-width:0}
.footer-contact__label{
  margin-bottom:6px;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.14em;color:var(--dim);
}
.footer-contact__value{font-size:14.5px;color:var(--text);word-break:break-word;max-width:32ch}
.footer-contact__note{grid-column:1/-1;font-size:13px;color:var(--muted);max-width:70ch}
.footer-legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-block:20px;font-size:12.5px;letter-spacing:.06em;color:var(--dim);
}
.footer-legal__icp,.footer-legal__copy{max-width:none}

/* ---------- sections ---------- */
.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(28px,4vw,56px)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:clamp(20px,3vw,36px);
}
.section__head p{max-width:52ch;font-size:15px;color:var(--muted)}

/* ---------- grids ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--8-4{grid-template-columns:8fr 4fr}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:14px;font-size:12.5px;letter-spacing:.08em;color:var(--dim);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb [aria-current="page"]{color:var(--muted)}

/* ---------- card ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.2vw,26px);
  border:1px solid var(--line);
  background:linear-gradient(155deg,rgba(22,48,76,.94),rgba(15,32,54,.94));
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.card--alt{background:linear-gradient(155deg,rgba(226,58,46,.16),rgba(15,32,54,.95))}
.card__accent{position:absolute;top:0;left:0;width:52px;height:2px;background:var(--green)}
.card__title{margin-bottom:6px;font-size:18px;font-weight:600;font-family:var(--font-display);letter-spacing:.02em}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--dim)}

/* ---------- stat ---------- */
.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{font-family:var(--font-mono);font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1;color:var(--amber);font-variant-numeric:tabular-nums}
.stat__label{font-size:12.5px;letter-spacing:.1em;color:var(--dim)}

/* ---------- tag ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;
  border:1px solid var(--line);color:var(--muted);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
}
.tag--red{border-color:var(--red);background:rgba(226,58,46,.16);color:#FFD8D3}
.tag--green{border-color:var(--green-deep);background:rgba(107,255,158,.1);color:var(--green)}
.tag--amber{border-color:rgba(242,180,65,.55);background:rgba(242,180,65,.12);color:var(--amber)}

/* ---------- prose ---------- */
.prose{max-width:72ch}
.prose h2{margin-top:2.2em;margin-bottom:.6em}
.prose h3{margin-top:1.8em;margin-bottom:.5em}
.prose p{margin-bottom:1.1em;color:#D3E2F1}
.prose ul,.prose ol{margin-bottom:1.1em}
.prose li{position:relative;padding-left:20px;margin-bottom:.5em;color:#D3E2F1}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;background:var(--green)}
.prose a{color:var(--green);border-bottom:1px solid var(--green-deep)}
.prose blockquote{
  margin:1.4em 0;padding:14px 18px;border-left:2px solid var(--red);
  background:rgba(226,58,46,.1);color:var(--text);
}

/* ---------- media (image containers) ---------- */
.media{
  position:relative;display:block;overflow:hidden;border:1px solid var(--line);
  background:
    radial-gradient(70% 92% at 18% 0%, rgba(226,58,46,.2), transparent 60%),
    radial-gradient(92% 84% at 92% 100%, rgba(107,255,158,.14), transparent 62%),
    linear-gradient(160deg,#16304C 0%,#0A1626 72%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media__img,.media img,.media svg{width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media__mark{
  position:absolute;top:12px;left:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--green);
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 14px;
  font-size:12.5px;letter-spacing:.06em;color:var(--muted);
  background:linear-gradient(0deg,rgba(10,22,38,.94),rgba(10,22,38,0));
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal--2{transform:translateY(12px)}
.reveal--3{transform:translateY(8px)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- tabs ---------- */
.tabs{display:block}
.tabs__list{display:flex;gap:2px;overflow-x:auto;border-bottom:1px solid var(--line);scrollbar-width:thin}
.tab{
  position:relative;padding:11px 18px;border-bottom:2px solid transparent;
  font-size:14px;letter-spacing:.06em;color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.tab:hover{color:var(--text)}
.tab[aria-selected="true"]{
  color:var(--text);border-bottom-color:var(--green);
  background:linear-gradient(180deg,rgba(107,255,158,0),rgba(107,255,158,.13));
}
.tabs__panel{padding-top:clamp(18px,2.6vw,30px)}
.tabs__panel[hidden]{display:none}

/* ---------- accordion ---------- */
.accordion{border-top:1px solid var(--line-soft)}
.accordion__item{border-bottom:1px solid var(--line-soft)}
.accordion__trigger{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  padding:16px 4px;text-align:left;color:var(--text);
  font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:.02em;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.accordion__trigger:hover{color:var(--green)}
.accordion__trigger[aria-expanded="true"]{
  color:var(--green);
  background:linear-gradient(90deg,rgba(107,255,158,.1),rgba(107,255,158,0));
}
.accordion__icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.accordion__icon::before,.accordion__icon::after{content:"";position:absolute;background:currentColor}
.accordion__icon::before{left:0;right:0;top:6px;height:1.5px}
.accordion__icon::after{top:0;bottom:0;left:6px;width:1.5px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after{transform:scaleY(0);opacity:0}
.accordion__panel{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.accordion__panel[data-open]{max-height:520px}
.accordion__panel-inner{padding:0 4px 20px;font-size:15.5px;color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid--7-5,.grid--8-4{grid-template-columns:1fr}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:920px){
  .header-stage{display:none}
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;max-height:0;overflow:hidden;
    background:var(--ink-800);border-top:1px solid var(--line);
    box-shadow:0 26px 44px rgba(0,0,0,.55);
    opacity:0;visibility:hidden;
    transition:max-height .3s var(--ease),opacity .24s var(--ease),visibility .24s var(--ease);
  }
  .nav[data-open]{max-height:min(74vh,560px);overflow-y:auto;opacity:1;visibility:visible}
  .nav__list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0}
  .nav__link{
    justify-content:space-between;width:100%;padding:14px var(--gutter);
    border-bottom:1px solid var(--line-soft);font-size:16px;
  }
  .nav__link::after{display:none}
  .nav__link[aria-current="page"]{
    background:linear-gradient(90deg,rgba(226,58,46,.2),rgba(226,58,46,0));
    box-shadow:inset 3px 0 0 var(--red);
  }
}
@media (max-width:720px){
  .grid--3,.grid--4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-contact{grid-template-columns:1fr}
  .section__head{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .header-upper__inner{padding-block:9px}
  .brand__line{display:none}
  .header-actions .btn--ghost{display:none}
  .btn{padding:9px 14px;font-size:13px}
  .footer-legal{flex-direction:column;gap:6px}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto}
  .pulse__glow{animation:none;stroke-dasharray:none;opacity:.85}
  .pulse__peak{animation:none;opacity:1}
  .dot{animation:none;opacity:1}
  .nav__link[aria-current="page"]::after{animation:none}
  .reveal{opacity:1;transform:none}
  .back-to-top{transition:none}
}