/* ==========================================================================
   易倍体育看台 · 共享 Site Kit
   ========================================================================== */

:root{
  --eb-deep:#061C17;
  --eb-deck:#0C2A22;
  --eb-stand:#1C4438;
  --eb-glass:#2E5C4E;
  --eb-neon:#38F2CF;
  --eb-paper:#F3EFE4;
  --eb-rock:#879A92;
  --eb-ember:#FF6B47;
  --eb-clay:#D68C3F;
  --eb-mint:#C8FFF4;

  --eb-line:rgba(46,92,78,.75);
  --eb-line-strong:rgba(56,242,207,.42);
  --eb-veil:rgba(12,42,34,.62);

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --rail-w:0px;
  --head-h:60px;
  --gap:clamp(14px,2.2vw,26px);
  --pad:clamp(18px,4vw,52px);
  --radius:3px;
  --progress:0;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--rail-w);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--eb-paper);
  background-color:var(--eb-deep);
  background-image:
    radial-gradient(120% 70% at 82% -12%,rgba(56,242,207,.10),transparent 62%),
    radial-gradient(90% 60% at -12% 108%,rgba(28,68,56,.62),transparent 70%),
    repeating-linear-gradient(90deg,rgba(46,92,78,.14) 0 1px,transparent 1px 112px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:800;line-height:1.25;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--eb-neon);color:#04140F}

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

#main-content{display:block;scroll-margin-top:calc(var(--head-h) + 14px)}

/* ---------- skip link ---------- */
.stand-skip{
  position:fixed;left:12px;top:-72px;z-index:200;
  display:inline-block;padding:10px 18px;border-radius:var(--radius);
  background:var(--eb-neon);color:#04140F;
  font-size:13px;font-weight:800;letter-spacing:.06em;text-decoration:none;
  transition:top .18s ease;
}
.stand-skip:focus{top:12px}

/* ---------- header：移动端顶部条 ---------- */
.stand-header{
  position:sticky;top:0;z-index:60;
  background:var(--eb-deck);
  border-bottom:1px solid var(--eb-line);
  color:var(--eb-paper);
}
.stand-header__inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:var(--head-h);
  padding:10px clamp(14px,4vw,24px);
}

/* 品牌 */
.stand-brand{display:flex;align-items:center;gap:12px;min-width:0}
.stand-brand__link{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;min-width:0}
.stand-brand__mark{
  position:relative;flex:0 0 auto;
  display:grid;place-items:center;
  width:44px;height:34px;
  border:1px solid var(--eb-line-strong);
  background:linear-gradient(160deg,rgba(56,242,207,.18),rgba(56,242,207,0));
  color:var(--eb-neon);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  transition:border-color .2s ease,background .2s ease;
}
.stand-brand__mark::after{
  content:"";position:absolute;right:-1px;bottom:-1px;width:7px;height:7px;
  background:var(--eb-ember);
}
.stand-brand__link:hover .stand-brand__mark{border-color:var(--eb-neon);background:linear-gradient(160deg,rgba(56,242,207,.3),rgba(56,242,207,.04))}
.stand-brand__text{display:block;min-width:0}
.stand-brand__name{display:block;font-size:15px;font-weight:800;letter-spacing:.06em;line-height:1.3;white-space:nowrap}
.stand-brand__sub{display:block;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.16em;color:var(--eb-rock);white-space:nowrap}
.stand-brand__badge{display:none}

/* 汉堡按钮 */
.stand-navtoggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border:1px solid var(--eb-line);border-radius:2px;
  background:rgba(28,68,56,.5);
  color:var(--eb-mint);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.stand-navtoggle:hover{border-color:var(--eb-line-strong);color:var(--eb-neon)}
.stand-navtoggle__bars{display:grid;gap:4px;width:16px}
.stand-navtoggle__bars span{display:block;height:1.5px;background:var(--eb-neon);transition:transform .22s ease,opacity .22s ease}
.stand-navtoggle[aria-expanded="true"] .stand-navtoggle__bars span:first-child{transform:translateY(2.75px) rotate(45deg)}
.stand-navtoggle[aria-expanded="true"] .stand-navtoggle__bars span:last-child{transform:translateY(-2.75px) rotate(-45deg)}
.stand-navtoggle__label{white-space:nowrap}

/* 导航抽屉 */
.stand-nav{
  position:fixed;top:0;left:0;bottom:0;z-index:80;
  width:min(84vw,320px);
  display:flex;flex-direction:column;gap:18px;
  padding:22px 18px 30px;
  background:var(--eb-deck);
  border-right:1px solid var(--eb-line-strong);
  box-shadow:18px 0 44px rgba(3,14,11,.55);
  overflow-y:auto;overscroll-behavior:contain;
  transform:translateX(-103%);
  transition:transform .28s cubic-bezier(.3,.8,.3,1);
}
.stand-nav[data-open="true"]{transform:none}
.stand-nav__head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.stand-nav__caption{
  margin:0;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  color:var(--eb-rock);text-transform:uppercase;
}
.stand-nav__close{
  display:grid;place-items:center;
  width:32px;height:32px;flex:0 0 auto;
  border:1px solid var(--eb-line);border-radius:2px;
  background:rgba(28,68,56,.5);color:var(--eb-mint);
  font-size:17px;line-height:1;
  transition:border-color .2s ease,color .2s ease;
}
.stand-nav__close:hover{border-color:var(--eb-line-strong);color:var(--eb-neon)}
.stand-nav__list{display:grid;gap:2px}
.stand-nav__list a{
  display:grid;grid-template-columns:32px minmax(0,1fr);align-items:center;
  padding:11px 12px;
  border-left:2px solid transparent;
  color:var(--eb-paper);text-decoration:none;font-size:14px;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.stand-nav__num{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--eb-rock);transition:color .18s ease;
}
.stand-nav__label{letter-spacing:.04em}
.stand-nav__list a:hover{background:rgba(56,242,207,.07);border-left-color:var(--eb-neon)}
.stand-nav__list a:hover .stand-nav__num{color:var(--eb-neon)}
.stand-nav__list a[aria-current="page"]{
  background:rgba(56,242,207,.11);
  border-left-color:var(--eb-neon);
  color:#FFFFFF;
}
.stand-nav__list a[aria-current="page"] .stand-nav__num{color:var(--eb-neon)}
.stand-nav__foot{
  margin-top:auto;display:grid;gap:12px;
  padding-top:18px;border-top:1px solid var(--eb-line);
}
.stand-nav__hint{margin:0;font-size:11.5px;line-height:1.65;color:var(--eb-rock)}

/* 遮罩 */
.stand-scrim{
  position:fixed;inset:0;z-index:70;
  background:rgba(3,14,11,.72);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.stand-scrim.is-active{opacity:1;visibility:visible}

/* 滚动进度 */
.stand-progress{
  position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--eb-neon),var(--eb-clay));
  transform:scaleX(var(--progress,0));transform-origin:left center;
  pointer-events:none;
}

/* ---------- footer ---------- */
.stand-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  border-top:1px solid var(--eb-line-strong);
  background:linear-gradient(180deg,rgba(12,42,34,.92),rgba(6,28,23,1));
  color:var(--eb-paper);
}
.stand-footer__inner{
  width:100%;max-width:1180px;margin-inline:auto;
  padding:clamp(30px,5vw,56px) var(--pad) 26px;
}
.stand-footer__top{display:grid;gap:30px;grid-template-columns:1fr}
.stand-footer__brand{min-width:0}
.stand-footer__wordmark{margin:0;font-size:clamp(20px,2.8vw,26px);font-weight:800;letter-spacing:.07em}
.stand-footer__sub{margin:5px 0 0;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;color:var(--eb-neon)}
.stand-footer__summary{margin:14px 0 0;max-width:36ch;font-size:13.5px;line-height:1.78;color:var(--eb-rock)}
.stand-footer__entry{margin:14px 0 0;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--eb-rock)}
.stand-footer__domain{color:var(--eb-clay)}
.stand-footer__nav{display:grid;gap:26px;grid-template-columns:1fr}
.stand-footcol{min-width:0}
.stand-footcol__heading{
  margin:0 0 12px;padding-bottom:8px;
  border-bottom:1px solid var(--eb-line);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;font-weight:700;
  color:var(--eb-neon);text-transform:uppercase;
}
.stand-footcol__list{display:grid;gap:10px}
.stand-footcol__list a{
  position:relative;display:inline-block;
  color:var(--eb-rock);text-decoration:none;font-size:13.5px;line-height:1.6;
  transition:color .18s ease;
}
.stand-footcol__list a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--eb-neon);transition:width .22s ease;
}
.stand-footcol__list a:hover{color:var(--eb-paper)}
.stand-footcol__list a:hover::after{width:100%}

.stand-footer__contact{
  margin-top:30px;padding-top:24px;
  border-top:1px solid var(--eb-line);
  display:grid;gap:14px;grid-template-columns:1fr;
}
.stand-contactitem{
  display:grid;gap:6px;justify-items:start;align-content:start;
  padding:14px 16px;border:1px solid var(--eb-line);border-radius:var(--radius);
  background:rgba(12,42,34,.62);
  transition:border-color .2s ease,background .2s ease;
}
.stand-contactitem:hover{border-color:var(--eb-line-strong);background:rgba(28,68,56,.42)}
.stand-contactitem__label{margin:0;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--eb-neon)}
.stand-contactitem__value{margin:0;font-size:13px;line-height:1.68;color:var(--eb-paper);word-break:break-word}
.stand-copy{
  margin-top:2px;padding:3px 8px;border:1px solid var(--eb-line);border-radius:2px;
  background:rgba(28,68,56,.55);color:var(--eb-rock);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;
  transition:color .18s ease,border-color .18s ease;
}
.stand-copy:hover{color:var(--eb-neon);border-color:var(--eb-line-strong)}
.stand-copy[data-copied="true"]{color:var(--eb-neon);border-color:var(--eb-neon)}
.stand-footer__note{margin:16px 0 0;max-width:72ch;font-size:12px;line-height:1.75;color:var(--eb-rock)}
.stand-footer__legal{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  margin-top:24px;padding-top:16px;
  border-top:1px solid var(--eb-line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--eb-rock);
}
.stand-footer__legalitem{margin:0}

/* ---------- 通用布局组件 ---------- */
.stand-container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:var(--pad)}
.stand-container--narrow{max-width:820px}

.stand-section{position:relative;padding-block:clamp(28px,5vw,56px)}
.stand-section--band{
  background:var(--eb-deck);
  border-block:1px solid var(--eb-line);
}

.stand-chapter{display:grid;gap:6px;margin:0 0 clamp(18px,3vw,32px)}
.stand-chapter__num{
  margin:0;
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(44px,9vw,104px);line-height:.85;letter-spacing:-.02em;
  color:var(--eb-stand);
  -webkit-text-stroke:1px rgba(56,242,207,.45);
}
.stand-chapter__title{margin:0;font-size:clamp(21px,3.2vw,32px);font-weight:800;letter-spacing:.02em}

.stand-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  color:var(--eb-neon);text-transform:uppercase;
}
.stand-eyebrow::before{content:"";width:18px;height:1px;background:var(--eb-neon)}

.stand-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  margin:0 0 18px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--eb-rock);
}
.stand-crumbs li{display:flex;align-items:center;gap:6px}
.stand-crumbs li + li::before{content:"/";color:var(--eb-glass)}
.stand-crumbs a{color:var(--eb-rock);text-decoration:none;transition:color .18s ease}
.stand-crumbs a:hover{color:var(--eb-neon)}
.stand-crumbs [aria-current="page"]{color:var(--eb-paper)}

.stand-grid{display:grid;gap:var(--gap)}
.stand-grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.stand-grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.stand-grid--rail{grid-template-columns:minmax(0,1fr)}

/* ---------- 通用内容组件 ---------- */
.stand-card{
  position:relative;
  padding:clamp(16px,2.2vw,24px);
  border:1px solid var(--eb-line);border-radius:var(--radius);
  background:var(--eb-deck);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.stand-card:hover{border-color:var(--eb-line-strong);background:#0E3027;transform:translateY(-2px)}

.stand-glass{
  border:1px solid rgba(46,92,78,.6);border-radius:var(--radius);
  background:rgba(12,42,34,.55);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}

.stand-tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 8px;border:1px solid var(--eb-line);border-radius:2px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  color:var(--eb-rock);
}
.stand-tag--live{color:var(--eb-ember);border-color:rgba(255,107,71,.5);background:rgba(255,107,71,.1)}
.stand-tag--warn{color:var(--eb-clay);border-color:rgba(214,140,63,.5);background:rgba(214,140,63,.1)}
.stand-tag--ok{color:var(--eb-neon);border-color:var(--eb-line-strong);background:rgba(56,242,207,.1)}

.stand-media{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--eb-line);border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(28,68,56,.9),rgba(6,28,23,.95));
}
.stand-media--wide{aspect-ratio:21 / 9}
.stand-media--portrait{aspect-ratio:4 / 5}
.stand-media__img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.75) brightness(.82) contrast(1.05);
  transition:filter .3s ease,transform .4s ease;
}
.stand-media:hover .stand-media__img{filter:saturate(.95) brightness(.95);transform:scale(1.02)}
.stand-media__caption{
  position:absolute;left:0;bottom:0;
  padding:7px 12px;
  background:rgba(6,28,23,.8);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--eb-mint);
}

.stand-index{border-top:1px solid var(--eb-line)}
.stand-index > li{border-bottom:1px solid var(--eb-line)}
.stand-index a{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:14px;align-items:center;
  padding:14px 6px;
  color:var(--eb-paper);text-decoration:none;
  transition:background .18s ease,padding-left .18s ease;
}
.stand-index a:hover{background:rgba(56,242,207,.06);padding-left:14px}

.stand-steps{
  display:grid;gap:1px;
  border:1px solid var(--eb-line);
  background:var(--eb-line);
  counter-reset:step;
}
.stand-steps > li{
  counter-increment:step;
  display:grid;gap:6px;
  padding:clamp(14px,2vw,20px);
  background:var(--eb-deck);
}
.stand-steps > li::before{
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--eb-neon);
}

.stand-score{
  display:flex;align-items:baseline;gap:8px;
  font-family:var(--font-mono);font-size:clamp(28px,5vw,44px);
  line-height:1;letter-spacing:.02em;color:var(--eb-paper);
}
.stand-score__sep{color:var(--eb-neon)}

.stand-meta{
  display:flex;flex-wrap:wrap;gap:6px 14px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.07em;color:var(--eb-rock);
}

.stand-prose{max-width:44em;font-size:15.5px;line-height:1.8;color:#DCE6E1}
.stand-prose p{margin:0 0 1.1em}
.stand-prose h2,.stand-prose h3{
  margin:1.6em 0 .6em;
  font-family:var(--font-serif);font-weight:700;letter-spacing:.02em;color:var(--eb-paper);
}
.stand-prose a{color:var(--eb-neon);text-decoration:underline;text-underline-offset:3px}
.stand-prose ul,.stand-prose ol{margin:0 0 1.1em;padding-left:1.25em;list-style:disc}
.stand-prose ol{list-style:decimal}

.stand-rule{border:0;height:1px;margin:clamp(22px,4vw,44px) 0;background:linear-gradient(90deg,var(--eb-line-strong),transparent)}

.stand-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border-radius:2px;
  font-size:13.5px;font-weight:700;letter-spacing:.05em;text-align:center;text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.stand-cta--primary{background:var(--eb-neon);border:1px solid var(--eb-neon);color:#04140F}
.stand-cta--primary:hover{background:var(--eb-mint);border-color:var(--eb-mint)}
.stand-cta--ghost{background:transparent;border:1px solid var(--eb-line-strong);color:var(--eb-mint)}
.stand-cta--ghost:hover{background:rgba(56,242,207,.1);color:var(--eb-neon)}

/* 渐显协议 */
html[data-reveal-ready] [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
html[data-reveal-ready] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (min-width:720px){
  .stand-footer__top{grid-template-columns:1.05fr 1.5fr}
  .stand-footer__nav{grid-template-columns:repeat(3,minmax(0,1fr))}
  .stand-footer__contact{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* ---------- 桌面：侧边轨道 ---------- */
@media (min-width:1024px){
  :root{--rail-w:280px}

  .stand-header{
    position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);
    z-index:60;
    border-bottom:0;border-right:1px solid var(--eb-line);
    background:linear-gradient(180deg,var(--eb-deck) 0%,#08201A 78%,var(--eb-deep) 100%);
  }
  .stand-header__inner{
    flex:1;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:22px;
    width:100%;min-height:0;
    padding:26px 20px 22px;
    overflow-y:auto;
  }
  .stand-brand{flex-direction:column;align-items:flex-start;gap:12px}
  .stand-brand__name{font-size:17px}
  .stand-brand__badge{
    display:inline-block;
    padding:3px 8px;border:1px solid rgba(214,140,63,.45);border-radius:2px;
    font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--eb-clay);
    white-space:nowrap;
  }
  .stand-navtoggle{display:none}
  .stand-nav__close{display:none}

  .stand-nav{
    position:static;inset:auto;
    width:auto;flex:1;
    display:flex;flex-direction:column;gap:16px;
    padding:0;border:0;box-shadow:none;background:transparent;
    transform:none;overflow:visible;
  }
  .stand-nav[data-open="true"]{transform:none}
  .stand-nav__head{justify-content:flex-start}
  .stand-nav__caption{font-size:9.5px}
  .stand-nav__list a{padding:10px 12px}
  .stand-nav__foot{padding-top:16px}

  .stand-scrim{display:none}

  .stand-progress{
    left:auto;right:-1px;top:0;bottom:auto;
    width:2px;height:100%;
    background:linear-gradient(180deg,var(--eb-neon),var(--eb-clay));
    transform:scaleY(var(--progress,0));transform-origin:center top;
  }

  .stand-footer__inner{padding-top:clamp(40px,4vw,60px)}
  .stand-footer__top{grid-template-columns:1.15fr 1.65fr;gap:48px}
  .stand-footer__nav{gap:32px}

  #main-content{scroll-margin-top:24px}

  .stand-grid--rail{grid-template-columns:minmax(0,2.15fr) minmax(0,1fr)}
}

@media (min-width:1280px){
  :root{--rail-w:300px}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .stand-card:hover{transform:none}
  .stand-media:hover .stand-media__img{transform:none}
  .stand-index a:hover{padding-left:6px}
  html[data-reveal-ready] [data-reveal]{opacity:1;transform:none}
}