/* =========================================================
   爱游戏赛场 · /assets/site.css
   夜间赛场数据指挥中心 · 连续画布 / 精密网格 / 单点荧光青
   ========================================================= */

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

/* ---------- tokens ---------- */
:root{
  --ink-900:#04120E;
  --ink-800:#0A211A;
  --panel-700:#103128;
  --grid-600:#1E4A3C;
  --neon-500:#2EF2C0;
  --violet-500:#7A5CFF;
  --orange-500:#FF8A3D;
  --white-100:#F1FBF7;
  --muted-400:#93AFA5;
  --mint-100:#D6FFEF;

  --font-display:"Archivo Narrow","HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --header-h:64px;
  --rail-max:1440px;
  --rail-pad:20px;
  --band:88px;
  --ease:cubic-bezier(.22,1,.36,1);
}
@media (min-width:901px){
  :root{--header-h:78px;--rail-pad:32px;--band:128px}
}
@media (min-width:1200px){
  :root{--rail-pad:48px;--band:152px}
}

/* ---------- base ---------- */
body{
  background:var(--ink-900);
  color:var(--white-100);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  padding-top:var(--header-h);
  min-height:100vh;
  overflow-x:hidden;
}
#main-content{display:block;scroll-margin-top:var(--header-h)}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:.98;letter-spacing:-.012em}
h1{font-size:clamp(44px,7.4vw,112px)}
h2{font-size:clamp(30px,4.2vw,64px)}
h3{font-size:clamp(21px,2.3vw,32px);line-height:1.14;letter-spacing:0}
h4{font-size:18px;line-height:1.3;letter-spacing:0}
p{max-width:68ch}

:focus-visible{outline:2px solid var(--neon-500);outline-offset:3px}

.num,.stat-value,.contact-value--mono,.footer-stamp,.section-index,.eyebrow,.panel-title,.tag,.annotation,.breadcrumb,.header-context,.league-tab,.nav-cta,.nav-toggle{
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
.num{font-family:var(--font-mono);letter-spacing:.02em}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:120;
  background:var(--neon-500);color:var(--ink-900);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  padding:10px 16px;border-radius:2px;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(4,18,14,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--grid-600);
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header[data-scrolled]{
  background:rgba(10,33,26,.94);
  border-bottom-color:rgba(46,242,192,.42);
}
.header-rail{
  position:relative;
  max-width:var(--rail-max);
  margin:0 auto;
  padding:0 var(--rail-pad);
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.header-brand-block{
  position:relative;
  display:flex;
  align-items:center;
  height:100%;
  flex:0 0 auto;
  min-width:0;
}
.brand{
  display:flex;align-items:baseline;gap:10px;white-space:nowrap;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.brand-mark{
  font-family:var(--font-display);font-weight:900;font-size:20px;
  letter-spacing:.01em;color:var(--white-100);
}
.brand-mark em{font-style:normal;color:var(--neon-500)}
.brand-season{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--neon-500);
  padding:2px 6px;border:1px solid rgba(46,242,192,.45);border-radius:2px;
}

.header-context{
  position:absolute;left:0;top:50%;
  transform:translateY(-50%) translateX(-8px);
  display:flex;align-items:center;gap:14px;white-space:nowrap;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
}
.site-header[data-scrolled] .brand{opacity:0;visibility:hidden;pointer-events:none}
.site-header[data-scrolled] .header-context{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateY(-50%) translateX(0);
}
.context-label{
  font-family:var(--font-display);font-weight:900;font-size:16px;
  letter-spacing:.02em;color:var(--white-100);
  padding-right:14px;border-right:1px solid var(--grid-600);
}
.league-switch{
  display:flex;align-items:center;gap:2px;
  border:1px solid var(--grid-600);padding:2px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.league-switch::-webkit-scrollbar{display:none}
.league-tab{
  appearance:none;-webkit-appearance:none;
  background:transparent;border:0;border-radius:2px;cursor:pointer;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--muted-400);padding:5px 9px;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.league-tab:hover{color:var(--white-100)}
.league-tab[aria-selected="true"]{background:var(--violet-500);color:#FFFFFF}

.header-nav{
  display:flex;align-items:center;justify-content:flex-end;
  gap:28px;flex:1 1 auto;min-width:0;
}
.nav-list{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;letter-spacing:.02em;
  color:var(--muted-400);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--neon-500);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--white-100)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--white-100)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  appearance:none;-webkit-appearance:none;
  background:transparent;border:1px solid var(--grid-600);border-radius:0;
  color:var(--white-100);cursor:pointer;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  padding:9px 12px;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:1px;background:currentColor}
.nav-toggle[aria-expanded="true"]{border-color:var(--neon-500);color:var(--neon-500)}

.read-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(30,74,60,.55);pointer-events:none;overflow:hidden;
}
.read-progress-bar{
  display:block;height:100%;width:0;
  background:var(--neon-500);
  box-shadow:0 0 10px rgba(46,242,192,.65);
}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink-800)}
.site-footer::before{
  content:"";display:block;height:1px;width:100%;
  background:linear-gradient(90deg,var(--neon-500) 0 24%,var(--grid-600) 24% 100%);
}
.footer-rail{max-width:var(--rail-max);margin:0 auto;padding:0 var(--rail-pad)}
.footer-band{padding:52px 0}
.footer-band:not(:first-child){border-top:1px solid rgba(30,74,60,.65)}
.footer-band--legal{padding-bottom:60px}

.footer-band--links{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:40px 56px;max-width:720px;
}
.footer-col{display:flex;flex-direction:column;gap:14px}
.footer-col-title{
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted-400);
  padding-bottom:12px;border-bottom:1px solid var(--grid-600);
}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  display:inline-block;padding:8px 0;font-size:16px;color:var(--white-100);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-links a:hover{color:var(--neon-500);padding-left:6px}

.footer-band--contact{display:grid;gap:22px}
.contact-heading{
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted-400);
}
.contact-list{display:grid;gap:12px}
.contact-item{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 18px}
.contact-key{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted-400);min-width:60px;
}
.contact-value{font-size:16px;color:var(--white-100)}
.contact-value--mono{font-family:var(--font-mono);letter-spacing:.02em}
.footer-note{margin-top:18px;max-width:66ch;font-size:14px;line-height:1.8;color:var(--muted-400)}

.footer-band--legal{
  display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:18px 40px;
}
.footer-brand{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.footer-brand-name{font-family:var(--font-display);font-weight:900;font-size:18px;color:var(--white-100)}
.footer-season{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--neon-500);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:6px 22px;font-size:13px;color:var(--muted-400)}
.footer-legal a{color:var(--muted-400);transition:color .18s var(--ease)}
.footer-legal a:hover{color:var(--white-100)}
.footer-stamp{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--muted-400);
}
.footer-stamp b{color:var(--neon-500);font-weight:500}

/* ---------- layout / section ---------- */
.container{width:100%;max-width:var(--rail-max);margin:0 auto;padding:0 var(--rail-pad)}
.container--narrow{max-width:880px}
.section{position:relative;padding:var(--band) 0}
.section--alt{background:var(--ink-800)}
.section--panel{background:var(--panel-700)}
.section-head{display:flex;flex-direction:column;gap:16px;max-width:820px;margin-bottom:52px}
.section-index{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--neon-500);
}
.section-title{font-size:clamp(28px,3.8vw,56px)}
.section-lede{font-size:17px;line-height:1.75;color:var(--muted-400);max-width:62ch}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted-400);
}
.rule{height:1px;width:100%;border:0;background:var(--grid-600)}
.rule--neon{background:var(--neon-500)}

/* ---------- prose ---------- */
.prose{max-width:68ch;font-size:17px;line-height:1.75;color:var(--white-100)}
.prose p+p{margin-top:18px}
.prose h2{margin:48px 0 16px;font-size:clamp(25px,3vw,40px)}
.prose h3{margin:34px 0 12px;font-size:clamp(19px,2vw,26px)}
.prose ul{margin:18px 0}
.prose li{position:relative;padding-left:22px;margin-top:10px}
.prose li::before{
  content:"";position:absolute;left:0;top:14px;
  width:10px;height:1px;background:var(--neon-500);
}
.prose a{color:var(--neon-500);text-decoration:underline;text-underline-offset:3px}
.prose strong{font-weight:700;color:var(--mint-100)}

/* ---------- panel / stat / tag ---------- */
.panel{
  background:var(--panel-700);
  border:1px solid var(--grid-600);
  border-radius:0;
  padding:22px;
}
.panel-head{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:16px;padding-bottom:14px;border-bottom:1px solid var(--grid-600);
}
.panel-title{
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted-400);
}
.stat{display:flex;flex-direction:column;gap:6px}
.stat-value{
  font-family:var(--font-mono);font-weight:600;line-height:1;
  font-size:clamp(28px,3.6vw,48px);color:var(--neon-500);
}
.stat-key{font-size:13px;letter-spacing:.08em;color:var(--muted-400)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;padding:3px 8px;border-radius:2px;
  border:1px solid var(--grid-600);color:var(--muted-400);
  background:rgba(30,74,60,.28);
}
.tag--violet{border-color:var(--violet-500);color:#C9BEFF}
.tag--orange{border-color:var(--orange-500);color:#FFD2B0}
.tag--neon{border-color:var(--neon-500);color:var(--neon-500)}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;overflow:hidden;margin:0;
  background:var(--ink-800);
  border:1px solid var(--grid-600);border-radius:0;
  aspect-ratio:16/9;width:100%;
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.05)}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(46,242,192,.14) 1px,transparent 1px);
  background-size:25% 100%;
}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:12px 14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted-400);
  background:linear-gradient(180deg,transparent,rgba(4,18,14,.9));
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--diagonal{clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}

/* ---------- annotation / grid / breadcrumb ---------- */
.annotation{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted-400);
}
.annotation--vertical{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  letter-spacing:.3em;
}
.grid-lines{position:relative}
.grid-lines::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(90deg,rgba(30,74,60,.5) 1px,transparent 1px);
  background-size:calc(100% / 12) 100%;
}
.grid-lines>*{position:relative;z-index:1}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:10px;padding:22px 0;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted-400);
}
.breadcrumb a{color:var(--muted-400)}
.breadcrumb a:hover{color:var(--white-100)}
.breadcrumb li::after{content:"/";margin-left:10px;color:var(--grid-600)}
.breadcrumb li:last-child::after{content:""}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;
  text-transform:uppercase;border-radius:0;
  padding:12px 18px;border:1px solid var(--grid-600);
  background:transparent;color:var(--white-100);cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--neon-500);border-color:var(--neon-500);color:var(--ink-900);font-weight:700}
.btn-primary:hover{background:var(--mint-100);border-color:var(--mint-100)}
.btn-ghost:hover{border-color:var(--neon-500);color:var(--neon-500)}
.nav-cta{padding:9px 16px;font-size:12px}

/* ---------- reveal ---------- */
[data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav-toggle{display:inline-flex}

  .header-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;
    background:var(--ink-800);
    border-bottom:1px solid var(--grid-600);
    padding:10px var(--rail-pad) 26px;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .header-nav[data-open]{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list li{border-bottom:1px solid rgba(30,74,60,.7)}
  .nav-link{display:block;padding:15px 0;font-size:17px}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--neon-500)}
  .nav-cta{margin-top:22px;padding:14px 16px;font-size:13px}

  .header-context{display:none}
  .brand-mark{font-size:17px}
  .brand-season{font-size:10px;padding:2px 5px}

  .footer-band--links{grid-template-columns:1fr;gap:34px;max-width:none}
  .footer-band--contact{gap:16px}
  .footer-band--legal{flex-direction:column;align-items:flex-start;gap:16px}
  .footer-season,.footer-stamp{letter-spacing:.1em}
}

@media (min-width:901px){
  .footer-band--contact{grid-template-columns:200px minmax(0,1fr);align-items:start}
}

@media (max-width:420px){
  .brand-season{display:none}
  .footer-legal{flex-direction:column;gap:8px}
}

/* ---------- motion preference ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .read-progress-bar{box-shadow:none}
}