/* ============================================================
   雷竞技赛场 · /assets/site.css
   夜间赛场指挥中心：深炭黑底 / 电光青 / 霓虹紫 / 熔岩橙
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,dl,dd,figure,blockquote,pre{margin:0}
ul,ol{margin:0;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}
main{display:block}
#main-content{scroll-margin-top:140px;outline:none}

/* ---------- 2. Tokens ---------- */
:root{
  --ink:#0B0E13;
  --panel:#161B24;
  --cyan:#22E0D6;
  --purple:#7B5CFF;
  --orange:#FF7A2F;
  --text:#EAF1F6;
  --mute:#8A96A6;
  --paper:#DCE7EC;
  --deep:#0F3B44;
  --line:rgba(234,241,246,.12);
  --line-soft:rgba(234,241,246,.07);
  --glass:rgba(11,14,19,.76);
  --shell:1320px;
  --gutter:clamp(18px,4vw,44px);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* ---------- 3. Base ---------- */
body{
  background:
    radial-gradient(1100px 600px at 82% -12%,rgba(123,92,255,.16),transparent 62%),
    radial-gradient(900px 520px at 2% 2%,rgba(34,224,214,.10),transparent 60%),
    var(--ink);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-weight:900;line-height:1.12;letter-spacing:-.022em;color:var(--text);text-wrap:balance}
h1{font-size:clamp(34px,7vw,84px)}
h2{font-size:clamp(26px,3.6vw,46px)}
h3{font-size:clamp(19px,2vw,24px);letter-spacing:-.01em}
p{max-width:70ch}
strong{color:var(--text);font-weight:700}
::selection{background:var(--cyan);color:#06131a}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ---------- 4. Layout helpers ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{position:relative;padding:clamp(46px,7vw,100px) 0}
.section--panel{background:linear-gradient(180deg,#121822,#0d1219);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--paper{
  background:var(--paper);
  color:#1b2733;
  --text:#0d141c;
  --mute:#54626f;
  --line:rgba(13,20,28,.16);
  --line-soft:rgba(13,20,28,.09);
  --panel:#ffffff;
  --glass:rgba(220,231,236,.85);
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px 30px;margin-bottom:clamp(22px,3vw,42px)}
.section-head__aside{margin-left:auto;font-family:var(--font-mono);font-size:12px;color:var(--mute);letter-spacing:.06em}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan)}
.section-title{font-size:clamp(26px,3.4vw,46px);margin-bottom:14px}
.section-lead{color:var(--mute);max-width:62ch}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 5. Grid ---------- */
.grid{display:grid;gap:clamp(16px,2vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:5fr 7fr}
.grid--split-rev{grid-template-columns:7fr 5fr}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--split,.grid--split-rev{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 6. Panels / cards / stats ---------- */
.panel{background:var(--panel);border:1px solid var(--line);padding:clamp(18px,2.4vw,30px);position:relative}
.panel--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}
.card{background:var(--panel);border:1px solid var(--line);padding:18px 20px;display:flex;flex-direction:column;gap:8px;transition:border-color var(--t),transform var(--t)}
.card:hover{border-color:var(--cyan);transform:translateY(-2px)}
.card__title{font-size:16.5px;font-weight:700}
.card__meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mute)}
.card__value{font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--orange);line-height:1.1}
.stat{border-left:2px solid var(--cyan);padding:4px 0 4px 14px}
.stat__value{display:block;font-family:var(--font-mono);font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.1;color:var(--text)}
.stat__label{display:block;font-size:12.5px;color:var(--mute);letter-spacing:.04em}
.chip{display:inline-flex;align-items:center;gap:8px;padding:5px 11px;border:1px solid rgba(34,224,214,.4);background:rgba(34,224,214,.08);color:var(--cyan);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;white-space:nowrap}
.chip--violet{border-color:rgba(123,92,255,.5);background:rgba(123,92,255,.12);color:#C3B6FF}
.chip--warn{border-color:rgba(255,122,47,.5);background:rgba(255,122,47,.12);color:var(--orange)}

/* ---------- 7. Timeline ---------- */
.timeline{position:relative;padding-left:24px}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:1px;background:linear-gradient(180deg,var(--cyan),rgba(123,92,255,.7) 70%,transparent)}
.timeline__item{position:relative;padding:0 0 24px}
.timeline__item:last-child{padding-bottom:0}
.timeline__item::before{content:"";position:absolute;left:-24px;top:9px;width:9px;height:9px;background:var(--ink);border:1.5px solid var(--cyan);transform:rotate(45deg)}
.timeline__item[data-state="current"]::before{background:var(--orange);border-color:var(--orange);box-shadow:0 0 0 4px rgba(255,122,47,.16)}
.timeline__meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--mute)}

/* ---------- 8. Tables ---------- */
.table-scroll{overflow:auto;border:1px solid var(--line);background:var(--panel);max-height:70vh}
.data-table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
.data-table th,.data-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:middle}
.data-table thead th{position:sticky;top:0;z-index:2;background:#101620;font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.14em;color:var(--mute);text-transform:uppercase;border-bottom:1px solid rgba(34,224,214,.28)}
.data-table tbody tr:hover td{background:rgba(34,224,214,.05)}
.data-table .num{font-family:var(--font-mono);font-weight:600;color:var(--text);font-variant-numeric:tabular-nums}
.data-table [data-col-active],.data-table th[data-col-active]{background:rgba(255,122,47,.14);color:var(--orange)}

/* ---------- 9. Buttons & links ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;font-size:14.5px;font-weight:700;letter-spacing:.02em;
  background:var(--panel);color:var(--text);border:1px solid transparent;cursor:pointer;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn--primary{background:linear-gradient(100deg,var(--cyan),var(--purple));color:#06131a}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(34,224,214,.28)}
.btn--ghost{background:transparent;border-color:rgba(34,224,214,.42);color:var(--cyan)}
.btn--ghost:hover{background:rgba(34,224,214,.12);border-color:var(--cyan);color:#B8FFF8}
.btn:active{transform:translateY(0)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.text-link{position:relative;display:inline-block;color:var(--cyan);font-weight:600;padding-bottom:2px}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.text-link:hover::after{transform:scaleX(1)}

/* ---------- 10. Prose ---------- */
.prose{max-width:38em;color:var(--text)}
.prose p{margin-bottom:1.15em;color:inherit}
.prose h2{margin:1.6em 0 .6em;font-size:clamp(22px,2.4vw,30px)}
.prose h3{margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.4em}
.prose blockquote{margin:1.4em 0;padding:4px 0 4px 18px;border-left:2px solid var(--cyan);color:var(--mute)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(34,224,214,.4)}
.prose code{font-family:var(--font-mono);font-size:.92em;color:var(--orange)}

/* ---------- 11. Breadcrumb ---------- */
.breadcrumb{padding:20px 0 0;font-size:12.5px;color:var(--mute)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:rgba(138,150,166,.55)}
.breadcrumb a{color:var(--mute);transition:color var(--t)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--text)}

/* ---------- 12. Media frames ---------- */
.figure-frame{position:relative;overflow:hidden;border:1px solid var(--line);background:linear-gradient(150deg,#141b26,#0c1118)}
.figure-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05) contrast(1.06)}
.figure-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,19,0) 42%,rgba(11,14,19,.76));pointer-events:none}
.figure-frame--wide{aspect-ratio:16/9}
.figure-frame--tall{aspect-ratio:4/5}
.figure-frame--square{aspect-ratio:1/1}
.figure-frame--empty::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(34,224,214,.09) 0 2px,transparent 2px 13px)}
.figure-frame__cap{position:absolute;left:0;bottom:0;z-index:2;padding:12px 16px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--cyan)}
.figure-frame__tag{position:absolute;top:12px;right:12px;z-index:2;padding:4px 9px;background:rgba(11,14,19,.72);border:1px solid rgba(123,92,255,.55);color:#C3B6FF;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em}

/* ---------- 13. Header ---------- */
.skip-link{position:absolute;left:-9999px;top:0;z-index:300;padding:12px 20px;background:var(--cyan);color:#06131a;font-weight:700;letter-spacing:.04em}
.skip-link:focus{left:12px;top:12px;outline:2px solid var(--ink)}

.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(34,224,214,.24);
}
.header-rail{background:linear-gradient(90deg,rgba(34,224,214,.09),rgba(123,92,255,.11) 58%,rgba(123,92,255,0));border-bottom:1px solid var(--line-soft)}
.header-rail__inner{display:flex;align-items:center;gap:clamp(14px,2.4vw,28px);padding:7px 0;font-size:12.5px}
.header-rail__brand{color:var(--mute);letter-spacing:.02em;line-height:1.5;max-width:none}
.header-rail__note{margin-left:auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(34,224,214,.9);white-space:nowrap}
.rail-links{display:flex;align-items:center;gap:18px;font-size:12.5px}
.rail-links a{color:var(--mute);border-bottom:1px solid transparent;transition:color var(--t),border-color var(--t)}
.rail-links a:hover{color:var(--text);border-bottom-color:var(--cyan)}

.header-bar__inner{display:flex;align-items:center;gap:clamp(16px,3vw,44px);padding:13px 0;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);flex:none}
.brand__mark{position:relative;flex:none;width:34px;height:34px;border:1px solid rgba(34,224,214,.6);background:linear-gradient(140deg,rgba(34,224,214,.18),rgba(123,92,255,.24))}
.brand__mark::before{content:"";position:absolute;inset:6px;background:var(--cyan);clip-path:polygon(0 100%,100% 0,100% 30%,30% 100%)}
.brand__mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:8px;height:8px;background:var(--orange)}
.brand__name{display:block;font-size:19px;font-weight:900;letter-spacing:-.02em;line-height:1.15;white-space:nowrap}
.brand__sub{display:block;font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--mute)}

.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px)}
.site-nav__link{position:relative;display:inline-flex;align-items:baseline;gap:7px;padding:10px 2px;font-size:14.5px;font-weight:600;color:var(--mute);transition:color var(--t)}
.site-nav__link::after{content:"";position:absolute;left:0;right:0;bottom:5px;height:1.5px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.site-nav__link:hover{color:var(--text)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--text)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:linear-gradient(90deg,var(--cyan),var(--purple))}
.site-nav__idx{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--cyan)}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--orange)}
.site-nav__drawer-foot{display:none}
.site-nav__stamp{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--mute);margin-top:14px}

.nav-toggle{
  display:none;align-items:center;gap:10px;padding:9px 14px;
  background:rgba(34,224,214,.08);border:1px solid rgba(34,224,214,.42);color:var(--cyan);
  font-size:13.5px;font-weight:700;letter-spacing:.08em;cursor:pointer;
  position:relative;z-index:80;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:rgba(34,224,214,.16)}
.nav-toggle__glyph{position:relative;display:block;width:18px;height:12px}
.nav-toggle__glyph i{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:transform var(--t),opacity var(--t)}
.nav-toggle__glyph i:nth-child(1){top:0}
.nav-toggle__glyph i:nth-child(2){top:5px}
.nav-toggle__glyph i:nth-child(3){top:10px}
[data-site-header][data-open] .nav-toggle__glyph i:nth-child(1){transform:translateY(5px) rotate(45deg)}
[data-site-header][data-open] .nav-toggle__glyph i:nth-child(2){opacity:0}
[data-site-header][data-open] .nav-toggle__glyph i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.nav-scrim{display:none;position:fixed;inset:0;z-index:65;background:rgba(5,8,12,.66);opacity:0;pointer-events:none;transition:opacity var(--t)}

.scroll-meter{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(234,241,246,.08);pointer-events:none}
.scroll-meter__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--purple) 58%,var(--orange));transition:width 120ms linear}

@media (max-width:1180px){
  .header-rail__note{display:none}
  .rail-links{margin-left:auto}
}
@media (max-width:720px){
  .header-rail__inner{flex-wrap:wrap;gap:4px 14px;padding:8px 0}
  .header-rail__brand{flex:1 1 100%;font-size:11.5px}
  .rail-links{width:100%;justify-content:flex-end;gap:14px;font-size:12px}
}

@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .nav-scrim{display:block}
  [data-site-header][data-open] .nav-scrim{opacity:1;pointer-events:auto}
  html[data-nav-open]{overflow:hidden}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:75;margin:0;
    width:min(86vw,368px);padding:118px 24px 34px;
    display:flex;flex-direction:column;
    background:linear-gradient(180deg,#111823,#0B0E13 72%);
    border-left:1px solid rgba(34,224,214,.3);
    box-shadow:-28px 0 70px rgba(4,7,11,.72);
    transform:translateX(102%);overflow-y:auto;
    transition:transform 280ms cubic-bezier(.2,.7,.3,1);
  }
  [data-site-header][data-open] .site-nav{transform:translateX(0)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;position:relative;padding-left:16px}
  .site-nav__list::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:1px;background:linear-gradient(180deg,var(--cyan),var(--purple) 70%,transparent)}
  .site-nav__item{border-bottom:1px solid var(--line-soft)}
  .site-nav__link{display:flex;flex-direction:column;gap:3px;padding:15px 4px;font-size:17px;font-weight:700}
  .site-nav__link::after{display:none}
  .site-nav__link::before{content:"";position:absolute;left:-20px;top:27px;width:7px;height:7px;background:var(--ink);border:1.5px solid var(--cyan);transform:rotate(45deg)}
  .site-nav__link:hover{color:var(--text)}
  .site-nav__link[aria-current="page"]{color:var(--cyan)}
  .site-nav__link[aria-current="page"]::before{background:var(--orange);border-color:var(--orange)}
  .site-nav__idx{font-size:11px;letter-spacing:.12em}
  .site-nav__drawer-foot{display:block;margin-top:26px}
}

/* ---------- 14. Footer ---------- */
.site-footer{position:relative;margin-top:clamp(48px,8vw,110px);background:linear-gradient(180deg,#0e131b,#0B0E13 46%);border-top:1px solid rgba(123,92,255,.32)}
.footer-edge{height:6px;background-image:linear-gradient(90deg,rgba(6,9,13,.42) 0 1px,transparent 1px 14px),linear-gradient(90deg,var(--cyan),var(--purple) 55%,var(--orange));background-size:14px 100%,100% 100%}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px);padding:clamp(34px,5vw,66px) 0 clamp(26px,4vw,46px)}
.footer-brand__line{color:var(--mute);font-size:14px;margin:18px 0 22px;max-width:34ch}
.brand--footer .brand__mark{width:28px;height:28px}
.brand--footer .brand__name{font-size:17px}
.contact-list{font-size:13.5px}
.contact-list__row{display:grid;grid-template-columns:56px minmax(0,1fr);gap:12px;padding:8px 0;border-top:1px dashed var(--line)}
.contact-list__row dt{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--mute)}
.contact-list__row dd{color:var(--text);word-break:break-word}
.contact-list__note{margin-top:16px;font-size:12.5px;line-height:1.7;color:var(--mute);max-width:44ch}
.footer-col__heading{display:flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--cyan);margin-bottom:16px}
.footer-col__heading::before{content:"";width:14px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--purple))}
.footer-links{display:grid;gap:10px}
.footer-links a{position:relative;display:inline-block;font-size:14.5px;color:var(--mute);transition:color var(--t),padding-left var(--t)}
.footer-links a::before{content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--orange);transition:width var(--t)}
.footer-links a:hover{color:var(--text);padding-left:16px}
.footer-links a:hover::before{width:10px}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px;padding:18px 0 36px;border-top:1px solid var(--line-soft);font-size:12.5px;color:var(--mute)}
.footer-legal__icp{font-family:var(--font-mono);letter-spacing:.06em}
.footer-legal__copy{margin-left:auto}
@media (max-width:980px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:620px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-legal__copy{margin-left:0}
}

/* ---------- 15. Reveal & motion ---------- */
html[data-js="on"] [data-reveal]{opacity:0;transform:translateY(8px);transition:opacity 240ms ease,transform 240ms ease}
html[data-js="on"] [data-reveal].is-revealed{opacity:1;transform:none}

@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}
  html[data-js="on"] [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn--primary:hover{transform:none}
}