/* ============================================================
   电竞世界主站 · 共享层 /assets/site.css
   深空黑底色 · 霓虹青强调 · 等宽数字层 · 1px 极细边线
   ============================================================ */

/* ---------- 1. CSS 变量 ---------- */
:root{
  --c-void:#05070A;
  --c-panel:#0C1116;
  --c-lift:#161D25;
  --c-cyan:#00F0FF;
  --c-magenta:#FF2E88;
  --c-yellow:#FFD400;
  --c-green:#38F5A6;
  --c-muted:#8C9BA8;
  --c-ink:#EAF6F8;
  --c-line:#22333B;

  --font-display:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --shell-max:1280px;
  --gut:clamp(18px,4vw,40px);
  --radius-pill:999px;
  --radius-md:12px;
  --radius-lg:18px;
  --ease-out:cubic-bezier(.22,.68,0,1);
  --header-h:70px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-void);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg,video{display:block;max-width:100%;}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
table{border-collapse:collapse;width:100%;}
::selection{background:rgba(0,240,255,.28);color:#fff;}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;border-radius:4px;}
#main-content{scroll-margin-top:calc(var(--header-h) + 16px);}

/* ---------- 3. 排版基础 ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--c-cyan);
  margin-bottom:14px;
}
.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(28px,4.4vw,56px);
  line-height:1.05;
  letter-spacing:-.02em;
  color:var(--c-ink);
}
.section-sub{
  font-size:15px;
  color:var(--c-muted);
  max-width:38em;
  margin-top:14px;
}
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.prose{max-width:38em;color:var(--c-muted);}
.prose p + p{margin-top:1.1em;}
.prose strong{color:var(--c-ink);font-weight:600;}

/* ---------- 4. 布局容器 ---------- */
.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gut);
}
.section{padding-block:clamp(48px,7vw,96px);}
.section--tight{padding-block:clamp(28px,4vw,56px);}
.divider{height:1px;background:var(--c-line);border:0;margin:0;}
.stack{display:flex;flex-direction:column;gap:var(--stack-gap,16px);}

/* ---------- 5. 栅格骨架 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
.grid--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr);}

/* ---------- 6. 面板与标签 ---------- */
.panel{
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--radius-lg);
  padding:clamp(18px,2.4vw,28px);
}
.panel--lift{background:var(--c-lift);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.6;
  border:1px solid var(--c-line);
  color:var(--c-muted);
  background:rgba(22,29,37,.6);
}
.tag--cyan{color:var(--c-cyan);border-color:rgba(0,240,255,.42);background:rgba(0,240,255,.08);}
.tag--magenta{color:var(--c-magenta);border-color:rgba(255,46,136,.42);background:rgba(255,46,136,.08);}
.tag--yellow{color:var(--c-yellow);border-color:rgba(255,212,0,.42);background:rgba(255,212,0,.08);}
.tag--green{color:var(--c-green);border-color:rgba(56,245,166,.42);background:rgba(56,245,166,.08);}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--radius-pill);
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-ink);
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  white-space:nowrap;
  transition:background .22s var(--ease-out),color .22s var(--ease-out),border-color .22s var(--ease-out),transform .22s var(--ease-out);
}
.btn--primary{background:var(--c-cyan);border-color:var(--c-cyan);color:#04121A;}
.btn--primary:hover{background:#5CF6FF;border-color:#5CF6FF;transform:translateY(-1px);}
.btn--ghost:hover{border-color:var(--c-cyan);color:var(--c-cyan);transform:translateY(-1px);}

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--c-muted);
}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:var(--c-line);}
.breadcrumb-item a{color:var(--c-muted);text-decoration:none;transition:color .2s;}
.breadcrumb-item a:hover{color:var(--c-cyan);}
.breadcrumb-item [aria-current="page"]{color:var(--c-ink);}

/* ---------- 9. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--c-line);
  background:var(--c-panel);
  aspect-ratio:16/9;
}
.media-frame > img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 0%,rgba(0,0,0,0) 40%,rgba(0,0,0,.55) 100%),
    linear-gradient(180deg,rgba(5,7,10,0) 55%,rgba(5,7,10,.62) 100%);
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:3/4;}
.media-caption{
  margin-top:10px;
  font-size:12px;
  line-height:1.7;
  color:var(--c-muted);
}

/* ---------- 10. 滚动显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .42s var(--ease-out),transform .42s var(--ease-out);
}
[data-reveal].is-revealed{opacity:1;transform:none;}

/* ============================================================
   11. 头部
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  pointer-events:none;
  background:transparent;
}
.header-inner{
  pointer-events:auto;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:14px;
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:14px var(--gut);
  transition:padding .28s var(--ease-out);
}
.site-header.is-scrolled .header-inner{padding-block:8px;}

.skip-link{
  position:absolute;
  left:var(--gut);
  top:-90px;
  z-index:200;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--c-cyan);
  color:#04121A;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transition:top .22s var(--ease-out);
}
.skip-link:focus{top:14px;}

/* 品牌浮岛 */
.brand{
  justify-self:start;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(12,17,22,.82);
  border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  color:var(--c-ink);
  text-decoration:none;
  transition:background .24s var(--ease-out),border-color .24s var(--ease-out);
}
.site-header.is-scrolled .brand{background:rgba(5,7,10,.92);}
.brand:hover{border-color:rgba(0,240,255,.5);}
.brand-glyph{
  flex:none;
  width:10px;
  height:10px;
  background:var(--c-cyan);
  transform:rotate(45deg);
  box-shadow:0 0 12px rgba(0,240,255,.85);
}
.brand-text{
  font-family:var(--font-display);
  font-weight:900;
  font-size:15px;
  letter-spacing:-.03em;
  white-space:nowrap;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  justify-self:end;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  background:rgba(12,17,22,.86);
  border:1px solid var(--c-line);
  color:var(--c-ink);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  cursor:pointer;
  -webkit-appearance:none;
  appearance:none;
}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle-bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--c-cyan);
  transition:transform .26s var(--ease-out),opacity .2s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 悬浮胶囊导航 */
.nav-shell{
  pointer-events:auto;
  justify-self:center;
  padding:6px;
  border-radius:var(--radius-pill);
  background:rgba(12,17,22,.82);
  border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background .24s var(--ease-out);
}
.site-header.is-scrolled .nav-shell{background:rgba(5,7,10,.92);}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:block;
  padding:9px 15px;
  border-radius:var(--radius-pill);
  color:var(--c-muted);
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s linear,background .2s linear;
}
.nav-link:hover{color:var(--c-ink);background:rgba(0,240,255,.07);}
.nav-link[aria-current="page"]{
  color:var(--c-cyan);
  background:rgba(0,240,255,.10);
}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  width:18px;
  height:1px;
  transform:translateX(-50%);
  background:var(--c-cyan);
  box-shadow:0 0 8px var(--c-cyan);
}

/* 右侧状态区 */
.header-actions{
  justify-self:end;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:6px 6px 6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(12,17,22,.82);
  border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background .24s var(--ease-out);
}
.site-header.is-scrolled .header-actions{background:rgba(5,7,10,.92);}
.live-dot{
  flex:none;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--c-cyan);
  box-shadow:0 0 0 3px rgba(0,240,255,.16);
  animation:pulse 2.6s ease-in-out infinite;
}
.live-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--c-muted);
  white-space:nowrap;
}
.ticket-link{
  padding:8px 15px;
  border-radius:var(--radius-pill);
  background:rgba(0,240,255,.12);
  border:1px solid rgba(0,240,255,.4);
  color:var(--c-cyan);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s linear,color .2s linear;
}
.ticket-link:hover{background:var(--c-cyan);color:#04121A;}

@keyframes pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 3px rgba(0,240,255,.16);}
  50%{opacity:.55;box-shadow:0 0 0 6px rgba(0,240,255,.04);}
}

/* 滚动进度 */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-green));
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
  box-shadow:0 0 10px rgba(0,240,255,.5);
}

/* 返回顶部 */
.to-top{
  pointer-events:auto;
  position:fixed;
  right:clamp(14px,3vw,28px);
  bottom:clamp(14px,3vw,28px);
  z-index:70;
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  border-radius:50%;
  background:rgba(12,17,22,.92);
  border:1px solid var(--c-line);
  color:var(--c-cyan);
  font-size:16px;
  line-height:1;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .26s var(--ease-out),transform .26s var(--ease-out),visibility .26s linear,border-color .2s linear;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{border-color:var(--c-cyan);}

/* ============================================================
   12. 页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:var(--c-panel);
  border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(0,240,255,0) 0%,rgba(0,240,255,.85) 22%,rgba(0,240,255,.85) 78%,rgba(0,240,255,0) 100%);
}
.footer-inner{
  padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,44px);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1.5fr) minmax(0,1.1fr);
  gap:clamp(24px,3.4vw,48px);
  align-items:start;
}
.footer-brand .brand{
  padding:0;
  background:none;
  border:0;
  -webkit-backdrop-filter:none;
  backdrop-filter:none;
}
.footer-brand .brand:hover{border:0;}
.footer-note{
  margin-top:18px;
  font-size:13px;
  line-height:1.85;
  color:var(--c-muted);
  max-width:26em;
}
.footer-title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--c-cyan);
  margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;gap:2px;}
.footer-link{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  color:var(--c-muted);
  text-decoration:none;
  transition:color .2s linear,transform .2s var(--ease-out);
}
.footer-link:hover{color:var(--c-ink);transform:translateX(3px);}
.contact-list{display:flex;flex-direction:column;}
.contact-row{
  display:flex;
  gap:12px;
  align-items:baseline;
  padding:8px 0;
  border-bottom:1px solid rgba(34,51,59,.6);
}
.contact-row:last-child{border-bottom:0;}
.contact-key{
  flex:none;
  width:2.6em;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--c-muted);
}
.contact-val{
  font-size:14px;
  color:var(--c-ink);
  word-break:break-word;
}
.footer-micro{
  margin-top:14px;
  font-size:12px;
  line-height:1.75;
  color:var(--c-muted);
}
.footer-copy{
  margin-top:20px;
  font-size:12px;
  line-height:2;
  letter-spacing:.04em;
  color:var(--c-muted);
}
.footer-copy .mono{color:var(--c-ink);}

/* ============================================================
   13. 响应式
   ============================================================ */
@media (max-width:1080px){
  .grid--7-5,.grid--8-4{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px) and (min-width:701px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:980px){
  :root{--header-h:64px;}
  .header-inner{
    grid-template-columns:1fr auto;
    gap:10px;
    padding-block:12px;
  }
  .brand{grid-column:1;grid-row:1;}
  .nav-toggle{display:inline-flex;grid-column:2;grid-row:1;}
  .header-actions{display:none;}

  .nav-shell{
    grid-column:1 / -1;
    grid-row:2;
    justify-self:stretch;
    padding:0;
    border-radius:16px;
    max-height:0;
    opacity:0;
    visibility:hidden;
    overflow:hidden;
    transition:max-height .34s var(--ease-out),opacity .24s linear,padding .34s var(--ease-out),visibility .34s linear;
  }
  .nav-shell[data-open]{
    max-height:min(72vh,560px);
    opacity:1;
    visibility:visible;
    padding:8px;
    overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{
    padding:13px 16px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-link[aria-current="page"]::after{display:none;}
  .nav-link[aria-current="page"]{
    background:rgba(0,240,255,.10);
    box-shadow:inset 2px 0 0 var(--c-cyan);
  }
}

@media (max-width:700px){
  body{font-size:15.5px;}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr);}
  .brand{padding:9px 14px;}
  .brand-text{font-size:14px;}
  .section-title{font-size:clamp(26px,7vw,38px);}
}

@media (max-width:620px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .contact-key{width:auto;}
}

/* ============================================================
   14. 可访问性与动效降级
   ============================================================ */
@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 !important;
    transform:none !important;
  }
  .to-top{transition:none;}
  .live-dot{animation:none;}
}