/* ============================================================
   亿万电竞局 · 共享层 /assets/site.css
   夜间赛场控制台：框架边轨 + 扫描线画布 + 海报式分层
   ============================================================ */

:root{
  --ink:#05070A;
  --ink-2:#080C11;
  --panel:#0C1218;
  --panel-2:#101821;
  --line:#2A3540;
  --line-soft:rgba(42,53,64,.6);
  --cyan:#12E0C8;
  --cyan-deep:#1A8F86;
  --orange:#FF6A1F;
  --lime:#7CFF6B;
  --alert:#FF4D6D;
  --text:#E8F4F2;
  --muted:#8FA3A8;
  --rail-w:92px;
  --rail-side-w:64px;
  --bar-h:66px;
  --radius:14px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-display:"Arial Narrow","Helvetica Neue Condensed","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --scroll-progress:0%;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;min-height:100vh;
  background:var(--ink);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.75;font-weight:400;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
i{font-style:normal}
table{border-collapse:collapse;width:100%}
::selection{background:var(--cyan);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:3px}
body.is-nav-open{overflow:hidden}

/* ---------- 画布纹理：网格 + 扫描线 ---------- */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(42,53,64,.4) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(42,53,64,.28) 1px,transparent 1px);
  background-size:88px 88px;
  opacity:.5;
  -webkit-mask-image:radial-gradient(circle at 50% 24%,#000 0,transparent 80%);
  mask-image:radial-gradient(circle at 50% 24%,#000 0,transparent 80%);
}
body::after{
  content:"";position:fixed;inset:-15% 0;z-index:1;pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(232,244,242,.05) 0 1px,transparent 1px 4px);
  animation:scan-drift 12s linear infinite;
}
@keyframes scan-drift{from{transform:translateY(-6%)}to{transform:translateY(6%)}}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:fixed;top:12px;left:12px;z-index:400;
  transform:translateY(-220%);
  padding:11px 18px;border-radius:8px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  transition:transform .22s var(--ease);
}
.skip-link:focus-visible{transform:none}

/* ============================================================
   页头框架
   ============================================================ */
.site-header{position:sticky;top:0;z-index:60}

.console-bar{
  position:relative;
  display:flex;align-items:center;gap:clamp(10px,2vw,26px);
  min-height:var(--bar-h);
  padding:9px clamp(14px,3vw,32px);
  background:linear-gradient(180deg,rgba(5,7,10,.97),rgba(5,7,10,.86));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.console-bar::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;
  width:var(--scroll-progress);
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  box-shadow:0 0 12px rgba(18,224,200,.55);
  transition:width .12s linear;
  pointer-events:none;
}

.brand{display:flex;flex-direction:column;gap:1px;min-width:0;flex:1 1 auto}
.brand__mark{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-display);
  font-weight:800;font-size:clamp(15px,1.6vw,19px);
  letter-spacing:.06em;line-height:1.2;color:var(--text);
  white-space:nowrap;
}
.brand__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);
  animation:pulse-dot 2.4s ease-in-out infinite;
}
.brand__tag{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  color:var(--muted);line-height:1.4;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.brand:hover .brand__mark{color:var(--cyan)}

.status-lights{display:none;align-items:center;gap:20px;flex:0 0 auto}
.status-light{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;white-space:nowrap;
}
.status-light__dot{
  width:6px;height:6px;border-radius:50%;
  background:currentColor;box-shadow:0 0 10px currentColor;
}
.status-light--sync{color:var(--orange)}
.status-light--sync .status-light__dot{animation:pulse-dot 2.4s ease-in-out infinite}
.status-light--ok{color:var(--lime)}
.status-light--ok .status-light__dot{animation:pulse-dot 2.4s ease-in-out infinite}
.status-light--ver{color:var(--cyan-deep);letter-spacing:.12em}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;border-radius:999px;
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--text);background:transparent;white-space:nowrap;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--primary{
  background:var(--orange);border-color:var(--orange);
  color:#100603;font-weight:700;
}
.btn--primary:hover{background:#FF8342;border-color:#FF8342;color:#100603;transform:translateY(-2px)}
.btn--ghost{background:rgba(12,18,24,.7)}
.btn--ghost:hover{background:rgba(18,224,200,.08)}
.btn--sm{padding:7px 12px;font-size:10px;letter-spacing:.12em}

/* ---------- 移动目录按钮 ---------- */
.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 12px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  color:var(--text);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:16px}
.nav-toggle__bars span{
  display:block;height:1.5px;width:100%;background:currentColor;border-radius:2px;
  transition:transform .26s var(--ease),opacity .18s var(--ease);
}
.site-header[data-open] .nav-toggle{border-color:var(--cyan);color:var(--cyan)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- 遮罩 ---------- */
.nav-scrim{
  position:fixed;inset:0;z-index:62;
  background:rgba(3,5,7,.74);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.site-header[data-open] .nav-scrim{opacity:1;pointer-events:auto}

/* ---------- 左轨导航（默认 = 移动抽屉） ---------- */
.rail-nav{
  position:fixed;top:0;left:0;bottom:0;z-index:65;
  width:min(86vw,340px);
  display:flex;flex-direction:column;gap:6px;
  padding:78px 20px 24px;
  background:linear-gradient(180deg,var(--panel),var(--ink));
  border-right:1px solid var(--line);
  box-shadow:30px 0 80px rgba(0,0,0,.6);
  transform:translateX(-102%);
  transition:transform .34s var(--ease);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.site-header[data-open] .rail-nav{transform:translateX(0)}
.rail-nav__title{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cyan-deep);
}
.rail-nav__list{display:flex;flex-direction:column;gap:2px;margin:10px 0 auto}
.rail-nav__link{
  position:relative;display:flex;align-items:center;gap:14px;
  width:100%;padding:13px 10px;
  border-bottom:1px solid var(--line-soft);
  color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.rail-nav__link:hover{color:var(--cyan);background:rgba(18,224,200,.06)}
.rail-nav__index{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  color:var(--cyan-deep);font-variant-numeric:tabular-nums;
}
.rail-nav__label{font-size:15px;font-weight:600;letter-spacing:.16em;color:inherit}
.rail-nav__link[aria-current="page"]{color:var(--cyan)}
.rail-nav__link[aria-current="page"] .rail-nav__index{color:var(--cyan)}
.rail-nav__link[aria-current="page"]::before{
  content:"";position:absolute;left:0;top:14%;bottom:14%;width:3px;
  background:var(--cyan);box-shadow:0 0 14px var(--cyan);
}
.rail-nav__foot{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  color:var(--cyan-deep);
}

/* ---------- 右轨（移动隐藏） ---------- */
.rail-side{display:none}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  background:linear-gradient(180deg,var(--ink-2),#030508 70%);
  border-top:1px solid var(--line);
  padding-top:clamp(40px,6vw,76px);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan) 18%,var(--orange) 62%,transparent);
  opacity:.75;
}
.footer__inner{
  display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px);
  width:100%;max-width:1180px;margin:0 auto;
  padding:0 clamp(16px,4vw,48px) clamp(28px,4vw,52px);
}
.footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px;min-width:0}
.footer__kicker{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.3em;
  text-transform:uppercase;color:var(--cyan);
}
.footer__wordmark{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(36px,7vw,68px);line-height:.94;letter-spacing:-.02em;
  color:var(--text);
}
.footer__tag{max-width:34em;color:var(--muted);font-size:14px;line-height:1.85}
.footer__cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:24px}
.footer__col-title{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:10px;
}
.footer__links li{margin:0}
.footer__links a{
  display:inline-block;padding:5px 0;font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer__links a:hover{color:var(--cyan);transform:translateX(3px)}
.footer__meta{
  width:100%;max-width:1180px;margin:0 auto;
  padding:16px clamp(16px,4vw,48px) 28px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:6px;
  font-family:var(--font-mono);font-size:11px;line-height:1.9;
  letter-spacing:.05em;color:var(--muted);
}
.footer__contact{color:var(--muted)}
.footer__address{color:var(--muted)}
.footer__legal{color:var(--muted)}
.footer__icp{color:var(--cyan-deep)}

/* ============================================================
   通用版式组件
   ============================================================ */
.page-shell{
  width:100%;max-width:1180px;margin-inline:auto;
  padding-inline:clamp(16px,4vw,48px);
}
.section{padding-block:clamp(32px,5vw,72px)}
.rule{height:1px;border:0;background:var(--line-soft);margin-block:clamp(22px,3.5vw,44px)}

.eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cyan);
}

.breadcrumb{padding-block:14px}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;gap:9px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:9px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line)}
.breadcrumb__item a:hover{color:var(--cyan)}
.breadcrumb__item[aria-current="page"]{color:var(--text)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--split{grid-template-columns:1fr}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

.panel{
  position:relative;
  padding:clamp(16px,2.4vw,26px);
  background:linear-gradient(165deg,var(--panel),var(--ink-2));
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.panel:hover{
  border-color:var(--cyan);transform:translateY(-2px);
  box-shadow:0 20px 44px -30px rgba(18,224,200,.7);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
.tag--live{color:var(--lime);border-color:rgba(124,255,107,.42)}
.tag--phase{color:var(--orange);border-color:rgba(255,106,31,.45)}
.tag--alert{color:var(--alert);border-color:rgba(255,77,109,.45)}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(28px,4vw,44px);line-height:1;
  letter-spacing:-.01em;font-variant-numeric:tabular-nums;color:var(--text);
}
.stat__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);border-radius:var(--radius);
  background:
    radial-gradient(120% 90% at 18% 0%,rgba(18,224,200,.16),transparent 62%),
    linear-gradient(160deg,var(--panel-2),var(--ink));
}
.media-frame__img,
.media-frame > img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    linear-gradient(to right,rgba(232,244,242,.07) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(232,244,242,.07) 1px,transparent 1px);
  background-size:34px 34px;
}
.media-frame__cap{
  position:absolute;left:12px;bottom:12px;z-index:2;
  padding:5px 10px;border-radius:999px;
  background:rgba(5,7,10,.74);border:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--text);
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 显现动效 ---------- */
.js-ready [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.js-ready [data-reveal].is-in{opacity:1;transform:none}

/* ============================================================
   断点
   ============================================================ */
@media (max-width:720px){
  .brand__tag{display:none}
}
@media (max-width:600px){
  .console-bar__actions .btn--ghost{display:none}
  .rail-nav__foot{font-size:9px;letter-spacing:.12em}
}
@media (min-width:860px){
  .footer__inner{grid-template-columns:minmax(0,1.05fr) minmax(0,1.45fr)}
  .footer__meta{flex-direction:row;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;align-items:baseline}
}
@media (min-width:1180px){
  .status-lights{display:flex}
}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
}

/* ---------- 桌面：框架边轨成形 ---------- */
@media (min-width:1024px){
  body{
    padding-left:var(--rail-w);
    padding-right:var(--rail-side-w);
  }
  .nav-toggle{display:none}
  .nav-scrim{display:none}

  .rail-nav{
    width:var(--rail-w);
    padding:14px 0 18px;
    transform:none;
    align-items:center;
    gap:12px;
    box-shadow:none;
    border-right:1px solid var(--line);
    background:linear-gradient(180deg,rgba(12,18,24,.97),rgba(5,7,10,.99));
    scrollbar-width:none;
  }
  .rail-nav::-webkit-scrollbar{width:0}
  .rail-nav__title{
    writing-mode:vertical-rl;text-orientation:mixed;
    font-size:9px;letter-spacing:.3em;color:var(--cyan-deep);
    padding-top:52px;
  }
  .rail-nav__list{gap:0;margin:auto 0;width:100%;align-items:center}
  .rail-nav__link{
    flex-direction:column;gap:7px;
    padding:12px 0;width:100%;
    border-bottom:0;
    border-top:1px solid transparent;
  }
  .rail-nav__link:hover{background:rgba(18,224,200,.07)}
  .rail-nav__index{font-size:9px;letter-spacing:.14em}
  .rail-nav__label{
    writing-mode:vertical-rl;text-orientation:mixed;
    font-size:13px;letter-spacing:.22em;line-height:1;
  }
  .rail-nav__link[aria-current="page"]::before{top:10%;bottom:10%;left:0;width:3px}
  .rail-nav__foot{
    font-size:9px;letter-spacing:.14em;text-align:center;
    writing-mode:vertical-rl;text-orientation:mixed;
  }

  .rail-side{
    position:fixed;top:0;right:0;bottom:0;z-index:65;
    width:var(--rail-side-w);
    display:flex;flex-direction:column;align-items:center;justify-content:space-between;
    padding:14px 0 18px;
    background:linear-gradient(180deg,rgba(12,18,24,.95),rgba(5,7,10,.99));
    border-left:1px solid var(--line);
  }
  .rail-side__meta{
    writing-mode:vertical-rl;text-orientation:mixed;
    font-family:var(--font-mono);font-size:9px;letter-spacing:.26em;
    text-transform:uppercase;color:var(--muted);
  }
  .rail-progress{
    position:relative;flex:1;width:2px;margin:16px 0;
    background:rgba(42,53,64,.85);border-radius:2px;overflow:hidden;
  }
  .rail-progress__fill{
    position:absolute;top:0;left:0;width:100%;
    height:var(--scroll-progress);
    background:linear-gradient(180deg,var(--cyan),var(--orange));
    box-shadow:0 0 12px rgba(18,224,200,.7);
    transition:height .12s linear;
  }
  .rail-top{
    writing-mode:vertical-rl;text-orientation:mixed;
    padding:9px 4px;border:1px solid var(--line);border-radius:999px;
    font-family:var(--font-mono);font-size:9px;letter-spacing:.22em;
    color:var(--cyan);
    transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
  }
  .rail-top:hover{border-color:var(--cyan);background:rgba(18,224,200,.1)}
}

/* ============================================================
   可访问性与动效降级
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::after{animation:none;opacity:.5}
  .brand__dot,
  .status-light__dot{animation:none}
  .js-ready [data-reveal]{opacity:1;transform:none;transition:none}
  .console-bar::after,
  .rail-progress__fill{transition:none}
  .panel,.btn,.footer__links a,.rail-nav__link,.rail-top{transition:none}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important}
}