/* ============================================================
   /assets/site.css — 体育平台赛场 · 共享样式表
   夜间赛场控制台：电光青 × 荧光橙 × 深墨绿
   ============================================================ */

/* ---------- 01 Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:124px}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,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%}
hr{border:0;border-top:1px solid var(--line);margin:0}

/* ---------- 02 Design Tokens ---------- */
:root{
  --night:#061410;
  --ink:#0B1F1A;
  --moss:#2E4A3C;
  --stone:#8C968D;
  --cream:#F2EFE6;
  --clay:#C96F4A;
  --clay-deep:#A85030;
  --cyan:#00E5FF;
  --cyan-deep:#00A8BC;
  --orange:#FF6B1A;
  --yellow:#F5D300;

  --line:rgba(140,150,141,.24);
  --line-cyan:rgba(0,229,255,.18);
  --line-warm:rgba(255,107,26,.34);
  --surface:rgba(46,74,60,.38);
  --surface-deep:rgba(6,20,16,.55);
  --text:rgba(242,239,230,.86);
  --text-soft:rgba(242,239,230,.70);
  --text-dim:rgba(242,239,230,.50);

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

  --rail:1240px;
  --gutter:clamp(18px,4vw,40px);
  --r-lg:26px;
  --r-md:16px;
  --r-pill:999px;
  --ease:cubic-bezier(.4,0,.2,1);
  --dur:.28s;
}

/* ---------- 03 Base / Typography ---------- */
body{
  min-height:100vh;
  color:var(--cream);
  background-color:var(--ink);
  background-image:
    radial-gradient(70% 55% at 86% -6%, rgba(0,229,255,.14), transparent 64%),
    radial-gradient(56% 46% at -8% 82%, rgba(255,107,26,.11), transparent 70%),
    linear-gradient(180deg,#061410 0%,#0B1F1A 34%,#0B1F1A 76%,#061410 100%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.02em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{font-weight:900;line-height:1.14;letter-spacing:-.01em;color:var(--cream)}
h1{font-size:clamp(38px,6.5vw,92px);line-height:1.02;letter-spacing:-.015em}
h2{font-size:clamp(26px,3.2vw,34px);font-weight:700}
h3{font-size:clamp(20px,2.2vw,24px);font-weight:700}
h4{font-size:17px;font-weight:700}
p{color:var(--text-soft);max-width:68ch}
strong,b{color:var(--cream);font-weight:700}
a{transition:color var(--dur) var(--ease)}
:where(a,button,summary,[tabindex],input,select,textarea):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- 04 Utilities ---------- */
.container{width:100%;max-width:var(--rail);margin-inline:auto;padding-inline:var(--gutter)}
.container--narrow{max-width:860px}
.prose{max-width:68ch}
.prose p+p{margin-top:1.1em}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.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}
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:12px 22px;border-radius:var(--r-pill);
  background:var(--cyan);color:#04120F;
  font-size:14px;font-weight:700;letter-spacing:.06em;
  transform:translateY(-180%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 05 Labels / Chips / Buttons ---------- */
.label{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:11px;font-weight:600;letter-spacing:.14em;
  color:var(--stone);text-transform:uppercase;
}
.chip{
  display:inline-flex;align-items:center;min-height:32px;padding:0 14px;
  border:1px solid var(--line-cyan);border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--cyan);
}
.chip--orange{border-color:var(--line-warm);color:var(--orange)}
.chip--yellow{border-color:rgba(245,211,0,.45);color:var(--yellow)}
.v-tag{
  writing-mode:vertical-rl;
  font-size:12px;letter-spacing:.2em;color:var(--stone);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.06em;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             transform var(--dur) var(--ease);
}
.btn--capsule{background:var(--cyan);color:#04120F;box-shadow:0 14px 34px -18px rgba(0,229,255,.95)}
.btn--capsule:hover{background:var(--orange);color:#180A02;transform:translateY(-2px);box-shadow:0 18px 38px -18px rgba(255,107,26,.95)}
.btn--ghost{border-color:rgba(242,239,230,.3);color:var(--cream)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,229,255,.08)}
.btn--clay{background:var(--clay);color:#1A0C06}
.btn--clay:hover{background:var(--clay-deep);color:var(--cream)}

/* ---------- 06 Layout / Sections ---------- */
.section{padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(30px,4vw,56px)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:clamp(16px,3vw,44px);
  padding-bottom:20px;border-bottom:1px solid var(--line);
}
.section-head__main{display:flex;align-items:center;gap:16px}
.section-head__note{font-size:14px;color:var(--text-dim);max-width:46ch;margin:0}
.slant-rule{
  height:1px;border:0;margin-block:clamp(28px,4vw,56px);
  background:linear-gradient(90deg,transparent,var(--line-cyan) 18%,var(--line-warm) 78%,transparent);
  transform:skewY(-.7deg);
}
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,1.6vw,22px)}
.bento__cell{grid-column:span 12;min-width:0}
@media (min-width:760px){
  .bento__cell--half{grid-column:span 6}
  .bento__cell--third{grid-column:span 4}
  .bento__cell--two-thirds{grid-column:span 8}
  .bento__cell--quarter{grid-column:span 3}
}
.panel{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(20px,3vw,32px);
}
.panel--key{border-color:var(--line-cyan);background:linear-gradient(150deg,rgba(0,229,255,.10),rgba(46,74,60,.30) 60%);box-shadow:0 34px 80px -56px rgba(0,229,255,.9)}
.panel--slant{clip-path:polygon(0 16px,100% 0,100% calc(100% - 16px),0 100%);border-radius:0}
.stat__value{
  display:block;font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,4.4vw,54px);font-weight:700;line-height:1;color:var(--cyan);
}
.stat__label{margin-top:10px;font-size:11px;font-weight:600;letter-spacing:.14em;color:var(--stone)}

/* ---------- 07 Breadcrumbs ---------- */
.breadcrumbs{padding-top:clamp(20px,3vw,36px)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;letter-spacing:.1em;color:var(--stone)}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:10px}
.breadcrumbs__item::after{content:"/";color:rgba(140,150,141,.5)}
.breadcrumbs__item:last-child::after{content:""}
.breadcrumbs__link{color:var(--stone)}
.breadcrumbs__link:hover{color:var(--cyan)}
.breadcrumbs__item[aria-current="page"]{color:var(--cream)}

/* ---------- 08 Media Frames ---------- */
.media-frame{
  position:relative;isolation:isolate;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(150deg,#12281F,#081813);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(0,229,255,.14);border-radius:inherit;
}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--portrait{aspect-ratio:3 / 4}
.media-frame--wide{aspect-ratio:16 / 9}
.media-frame--panorama{aspect-ratio:21 / 9}
.media-frame--slant{clip-path:polygon(0 3%,100% 0,100% 97%,0 100%);border-radius:0}
.media-frame--empty{
  background-image:
    repeating-linear-gradient(115deg,rgba(0,229,255,.07) 0 2px,transparent 2px 20px),
    linear-gradient(150deg,#12281F,#081813);
}
.media-frame--glow::before{
  content:"";position:absolute;top:-40%;left:-30%;width:55%;height:180%;z-index:1;
  background:linear-gradient(90deg,transparent,rgba(0,229,255,.18),transparent);
  transform:rotate(12deg);pointer-events:none;
  animation:scanline 6.4s linear infinite;
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:14px 18px;font-size:12px;letter-spacing:.12em;color:var(--cream);
  background:linear-gradient(0deg,rgba(6,20,16,.92),transparent);
}
@keyframes scanline{0%{left:-40%}100%{left:115%}}

/* ---------- 09 Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(6,20,16,.98),rgba(11,31,26,.92));
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-cyan);
}
.status-strip{
  background:linear-gradient(90deg,#061410,#0B1F1A 52%,#061410);
  border-bottom:1px solid rgba(140,150,141,.2);
}
.status-strip__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;max-width:var(--rail);height:28px;margin-inline:auto;
  padding-inline:var(--gutter);overflow:hidden;
  font-size:11px;letter-spacing:.14em;
}
.status-strip__item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.status-strip__key{color:var(--stone);font-weight:600}
.status-strip__val{font-size:12px;font-weight:700;color:var(--cyan)}
.status-strip__item--end .status-strip__val{color:var(--yellow)}
.status-strip__unit{color:var(--stone)}
.header-bar{position:relative}
.header-bar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(16px,4vw,48px);
  width:100%;max-width:var(--rail);margin-inline:auto;
  padding:13px var(--gutter);
}
.brand{display:inline-flex;align-items:center;gap:13px;flex:0 0 auto}
.brand__mark{
  position:relative;flex:0 0 auto;width:34px;height:34px;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,var(--cyan),var(--orange));
  transform:skewX(-6deg);
  box-shadow:0 0 24px -8px rgba(0,229,255,.9);
}
.brand__mark::before{content:"";position:absolute;inset:8px;border-radius:5px;background:var(--night)}
.brand__mark::after{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:3px;margin-left:-1.5px;
  background:var(--cyan);box-shadow:0 0 12px rgba(0,229,255,.95);
  animation:markPulse 3.4s ease-in-out infinite;
}
@keyframes markPulse{0%,100%{opacity:1}50%{opacity:.42}}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:18px;font-weight:900;letter-spacing:.06em;color:var(--cream)}
.brand__sub{margin-top:4px;font-size:10px;letter-spacing:.2em;color:var(--cyan)}
.primary-nav{
  display:flex;align-items:center;gap:clamp(10px,1.6vw,24px);
  margin-left:auto;min-width:0;
}
.primary-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.primary-nav__item{white-space:nowrap}
.primary-nav__link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:rgba(242,239,230,.78);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.primary-nav__link:hover{color:var(--cyan);background:rgba(0,229,255,.08)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--cyan);background:rgba(0,229,255,.14)}
.primary-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.primary-nav__tag{display:none}
.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;gap:10px;
  min-height:44px;min-width:44px;padding:0 16px;
  border:1px solid rgba(0,229,255,.42);border-radius:var(--r-pill);
  color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.1em;
}
.nav-toggle:hover{background:rgba(0,229,255,.1)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;background:currentColor}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--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)}
.progress-rail{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(0,229,255,.10);overflow:hidden;pointer-events:none;
}
.progress-rail__bar{
  height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}

/* ---------- 10 Footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(56px,8vw,128px);
  color:var(--text-soft);
  background:linear-gradient(180deg,#0B1F1A 0%,#061410 62%,#030C09 100%);
  border-top:1px solid var(--line-cyan);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(68% 58% at 90% 0%, rgba(0,229,255,.13), transparent 70%),
    radial-gradient(52% 52% at 0% 100%, rgba(255,107,26,.11), transparent 72%);
}
.footer-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(220px,1.05fr) minmax(320px,1.55fr) minmax(220px,1fr);
  gap:clamp(28px,4vw,60px);
  padding-block:clamp(46px,7vw,88px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start}
.footer-brand__name{
  position:relative;padding-left:16px;
  font-size:23px;font-weight:900;letter-spacing:.05em;color:var(--cream);
}
.footer-brand__name::before{
  content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:4px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
}
.footer-brand__tag{
  margin-top:14px;padding:5px 12px;border:1px solid var(--line-cyan);border-radius:var(--r-pill);
  font-size:11px;letter-spacing:.18em;color:var(--cyan);
}
.footer-brand__line{
  margin-top:16px;font-size:15px;line-height:1.8;color:var(--text-dim);max-width:36ch;
}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,2.4vw,34px)}
.footer-col__title{
  display:flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.18em;color:var(--cyan);
}
.footer-col__title::before{
  content:"";width:7px;height:7px;background:var(--orange);
  transform:skewX(-12deg);border-radius:2px;flex:0 0 auto;
}
.footer-col__list{margin-top:16px;display:grid;gap:10px}
.footer-col__link{
  display:inline-block;font-size:15px;color:rgba(242,239,230,.74);
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-col__link:hover{color:var(--orange);transform:translateX(4px)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact__item{display:flex;flex-direction:column;gap:3px;margin:0;max-width:none}
.footer-contact__key{font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--stone)}
.footer-contact__val{font-size:14px;line-height:1.65;color:var(--cream);word-break:break-word}
.footer-note{
  margin-top:8px;padding-left:12px;border-left:2px solid var(--yellow);
  font-size:13px;line-height:1.75;color:var(--text-dim);max-width:34ch;
}
.footer-legal{
  position:relative;
  border-top:1px solid rgba(140,150,141,.22);
  background:rgba(3,12,9,.62);
}
.footer-legal__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;padding-block:20px;
  font-size:12px;letter-spacing:.06em;color:var(--stone);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:22px;margin:0;color:var(--text-soft)}
.footer-legal__links a:hover{color:var(--cyan)}
.footer-legal__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0;color:var(--stone)}
.footer-legal__sep{color:rgba(140,150,141,.45)}

/* ---------- 11 Motion / Reveal ---------- */
.js [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .48s var(--ease),transform .48s var(--ease);
}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 12 Responsive : Header ---------- */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;position:relative;z-index:80}
  .primary-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;z-index:55;
    width:min(88vw,368px);
    margin-left:0;padding:112px 26px 44px;
    display:flex;flex-direction:column;align-items:stretch;gap:26px;
    background:linear-gradient(165deg,#0B1F1A 0%,#061410 100%);
    border-left:1px solid var(--line-cyan);
    box-shadow:-40px 0 80px -40px rgba(0,0,0,.95);
    transform:translateX(102%);
    transition:transform .34s var(--ease);
    overflow-y:auto;
    overscroll-behavior:contain;
  }
  .primary-nav[data-open]{transform:translateX(0)}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:4px;width:100%;flex-wrap:nowrap}
  .primary-nav__item{width:100%}
  .primary-nav__link{
    width:100%;min-height:52px;padding:0 18px;font-size:18px;
    border-radius:14px;justify-content:flex-start;
    border-bottom:1px solid rgba(140,150,141,.14);
  }
  .primary-nav__link::after{display:none}
  .primary-nav__link[aria-current="page"]{
    background:rgba(0,229,255,.14);
    box-shadow:inset 3px 0 0 var(--cyan);
  }
  .header-cta{width:100%;min-height:52px;font-size:16px}
  .primary-nav__tag{
    display:block;position:absolute;top:54px;right:26px;
    writing-mode:vertical-rl;font-size:11px;letter-spacing:.28em;color:var(--stone);
  }
}
@media (max-width:560px){
  .status-strip__inner{gap:10px;font-size:10px}
  .status-strip__key{font-size:10px;letter-spacing:.1em}
  .brand__sub{display:none}
  .brand__name{font-size:16px}
  .header-bar__inner{padding-block:11px}
  .nav-toggle__label{display:none}
  .nav-toggle{padding:0 12px}
}

/* ---------- 13 Responsive : Footer / Layout ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:680px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-cols{grid-template-columns:1fr 1fr}
  .footer-brand__line{max-width:none}
  .footer-note{max-width:none}
  .footer-legal__inner{justify-content:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:420px){
  .footer-cols{grid-template-columns:1fr}
}

/* ---------- 14 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .media-frame--glow::before{display:none}
  .progress-rail__bar{transition:none}
}