/* ============================================================
   KAIYUN赛场 · /assets/site.css
   夜间赛场指挥中心 · 框架式导航 · 编辑部版式
   ============================================================ */

/* ---------- 1. 令牌 ---------- */
:root{
  --ink-900:#060E1C;
  --ink-800:#0C1A2E;
  --ink-700:#14273F;
  --cyan-signal:#22E0C8;
  --orange-signal:#FF7A2F;
  --card-red:#E04A3F;
  --card-yellow:#F2C14E;
  --paper:#E8EDF5;
  --mist:#9BA9BF;
  --violet-link:#7C6BFF;

  --line:rgba(232,237,245,.14);
  --line-soft:rgba(232,237,245,.08);
  --line-strong:rgba(34,224,200,.42);

  --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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --shell:1280px;
  --gutter:clamp(16px,3vw,32px);
  --radius:0;
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-family:var(--font-display);font-weight:700;line-height:1.15;letter-spacing:-.01em;color:var(--paper)}
h1{font-size:clamp(28px,4.4vw,40px)}
h2{font-size:clamp(24px,3.2vw,32px)}
h3{font-size:clamp(19px,2.4vw,24px)}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.3em}
a{color:var(--cyan-signal);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
img,svg,video{max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--cyan-signal);outline-offset:2px}

/* ---------- 3. 工具类 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.main-content{display:block}
.main-content:focus{outline:none}
#main-content{scroll-margin-top:150px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.mono,.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.rule{height:1px;border:0;background:var(--line);margin:28px 0}
.kicker{display:inline-flex;align-items:center;gap:10px;margin:0 0 12px;font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--cyan-signal)}
.kicker::before{content:"";width:18px;height:2px;background:var(--cyan-signal);display:inline-block}

/* 标签与状态标记 */
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border:1px solid var(--line);background:rgba(12,26,46,.7);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--mist)}
.tag::before{content:"";width:6px;height:6px;background:currentColor;flex:0 0 auto}
.tag--cyan{color:var(--cyan-signal);border-color:rgba(34,224,200,.5)}
.tag--violet{color:var(--violet-link);border-color:rgba(124,107,255,.5)}
.tag--red{color:var(--card-red);border-color:rgba(224,74,63,.55)}
.tag--yellow{color:var(--card-yellow);border-color:rgba(242,193,78,.55)}

/* ---------- 4. 按钮 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--paper);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn::after{
  content:"";
  position:absolute;
  top:-1px;
  right:-1px;
  width:9px;
  height:9px;
  background:var(--ink-900);
  clip-path:polygon(100% 0,100% 100%,0 0);
  pointer-events:none;
}
.btn:hover{text-decoration:none;background:rgba(34,224,200,.12);border-color:var(--cyan-signal);color:var(--paper)}
.btn--signal{background:var(--orange-signal);border-color:var(--orange-signal);color:var(--ink-900);font-weight:700}
.btn--signal:hover{background:#FF9351;border-color:#FF9351;color:var(--ink-900)}
.btn--cyan{background:var(--cyan-signal);border-color:var(--cyan-signal);color:var(--ink-900);font-weight:700}
.btn--cyan:hover{background:#5CEEDD;border-color:#5CEEDD;color:var(--ink-900)}
.btn--ghost{border-color:var(--line);color:var(--mist)}
.btn--ghost:hover{color:var(--paper);border-color:var(--line-strong)}
.cta-button{flex:0 0 auto;white-space:nowrap}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:-72px;
  left:16px;
  z-index:120;
  padding:10px 16px;
  background:var(--cyan-signal);
  color:var(--ink-900);
  font-weight:700;
  text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{top:12px;text-decoration:none}

/* ---------- 6. 页头：框架式导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(6,14,28,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header[data-stuck]{box-shadow:0 1px 0 rgba(34,224,200,.35),0 16px 32px rgba(0,0,0,.5)}

.status-strip{
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(90deg,rgba(34,224,200,.10),rgba(124,107,255,.09) 52%,rgba(6,14,28,0));
}
.status-strip__inner{
  display:flex;
  align-items:center;
  gap:12px;
  max-width:var(--shell);
  margin-inline:auto;
  padding:7px var(--gutter);
  border-inline:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--mist);
}
.status-dot{width:7px;height:7px;flex:0 0 auto;background:var(--cyan-signal);box-shadow:0 0 0 4px rgba(34,224,200,.16);animation:ky-pulse 2.4s ease-in-out infinite}
@keyframes ky-pulse{50%{opacity:.28}}
.status-text{display:flex;align-items:center;gap:8px;margin:0;flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status-round{flex:0 0 auto;padding:1px 6px;background:var(--cyan-signal);color:var(--ink-900);font-weight:700;letter-spacing:.08em}
.status-tags{display:flex;gap:8px;list-style:none;margin:0;padding:0;flex:0 0 auto}
.status-tag{padding:1px 8px;border:1px solid var(--line);color:var(--mist)}

.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  max-width:var(--shell);
  margin-inline:auto;
  padding:13px var(--gutter);
  border-inline:1px solid var(--line);
}
.brand-lockup{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  position:relative;
  width:30px;
  height:30px;
  flex:0 0 auto;
  border:1px solid var(--line-strong);
  background:linear-gradient(135deg,rgba(34,224,200,.22),rgba(6,14,28,0) 65%);
}
.brand-mark::before{content:"";position:absolute;left:25%;right:25%;top:22%;height:9px;border-top:1px solid rgba(232,237,245,.5);border-bottom:1px solid rgba(232,237,245,.5)}
.brand-mark::after{content:"";position:absolute;right:-3px;top:-3px;width:6px;height:6px;background:var(--orange-signal)}
.brand-mark__line{position:absolute;left:6px;right:6px;bottom:6px;height:2px;background:var(--cyan-signal)}
.brand-name{font-family:var(--font-display);font-size:clamp(19px,2.2vw,24px);font-weight:700;letter-spacing:-.01em;color:var(--paper);text-decoration:none;white-space:nowrap}
.brand-name:hover{color:var(--cyan-signal);text-decoration:none}
.brand-tag{padding-left:12px;border-left:1px solid var(--line);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--mist);white-space:nowrap}

.nav-frame{
  position:relative;
  max-width:var(--shell);
  margin-inline:auto;
  border:1px solid var(--line);
  border-bottom:0;
  background:linear-gradient(90deg,rgba(20,39,63,.55),rgba(6,14,28,0) 62%);
}
.nav{display:block}
.nav-list{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;counter-reset:navidx}
.nav-item{display:block}
.nav-link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:13px 20px;
  border-right:1px solid var(--line-soft);
  color:var(--mist);
  font-size:15px;
  text-decoration:none;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link::before{counter-increment:navidx;content:"0" counter(navidx);font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--violet-link)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;transition:background-color .18s ease}
.nav-link:hover{background:rgba(20,39,63,.9);color:var(--paper);text-decoration:none}
.nav-link:hover::after{background:var(--cyan-signal)}
.nav-link[aria-current="page"]{background:rgba(34,224,200,.12);color:var(--cyan-signal);text-decoration:none}
.nav-link[aria-current="page"]::after{background:var(--cyan-signal)}
.nav-link[aria-current="page"]::before{color:var(--cyan-signal)}
.nav-frame__legend{
  display:none;
  position:absolute;
  top:-9px;
  right:var(--gutter);
  margin:0;
  padding:0 8px;
  background:var(--ink-900);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--mist);
}
.nav-toggle{
  display:none;
  width:100%;
  align-items:center;
  gap:10px;
  padding:13px var(--gutter);
  border:0;
  background:transparent;
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  cursor:pointer;
  text-align:left;
}
.nav-toggle:hover{background:rgba(20,39,63,.8)}
.nav-toggle__bars{
  width:18px;
  height:12px;
  flex:0 0 auto;
  background:linear-gradient(var(--cyan-signal) 0 2px,transparent 2px 5px,var(--cyan-signal) 5px 7px,transparent 7px 10px,var(--cyan-signal) 10px 12px);
}
.nav-toggle__label{white-space:nowrap}
.site-header[data-open] .nav-toggle{color:var(--cyan-signal)}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  margin-top:clamp(40px,6vw,80px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,26,46,.92),var(--ink-900) 70%);
}
.footer-frame{
  display:grid;
  grid-template-columns:minmax(240px,1fr) 2.1fr;
  gap:clamp(28px,4vw,56px);
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(32px,5vw,60px) var(--gutter) 28px;
  border-inline:1px solid var(--line);
}
.footer-brand__name{margin:0 0 6px;font-family:var(--font-display);font-size:22px;font-weight:700;letter-spacing:-.01em}
.footer-brand__tag{margin:0 0 14px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--cyan-signal)}
.footer-brand__note{margin:0;max-width:34ch;font-size:13px;line-height:1.75;color:var(--mist)}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col{min-width:0}
.footer-col__title{margin:0 0 14px;font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.14em;color:var(--mist)}
.footer-col__title::after{content:"";display:block;width:18px;height:2px;margin-top:8px;background:var(--cyan-signal)}
.footer-list,.footer-lines{list-style:none;margin:0;padding:0}
.footer-list li+li{margin-top:9px}
.footer-link{position:relative;display:inline-block;padding-left:14px;color:rgba(232,237,245,.82);font-size:14.5px;text-decoration:none;transition:color .18s ease,transform .18s ease}
.footer-link::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:1px;background:var(--mist);transition:background-color .18s ease,width .18s ease}
.footer-link:hover{color:var(--cyan-signal);text-decoration:none;transform:translateX(3px)}
.footer-link:hover::before{width:10px;background:var(--cyan-signal)}
.footer-lines li{margin-bottom:8px}
.footer-line{font-size:13.5px;line-height:1.7;color:var(--mist);word-break:break-all}
.footer-line:first-child{font-family:var(--font-mono);color:rgba(232,237,245,.86)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 28px;
  max-width:var(--shell);
  margin-inline:auto;
  padding:14px var(--gutter) 22px;
  border:1px solid var(--line);
  border-top:1px solid var(--line-soft);
  font-size:12.5px;
  color:var(--mist);
}
.footer-icp{margin:0;font-family:var(--font-mono);letter-spacing:.04em;color:rgba(232,237,245,.8)}
.footer-copy{margin:0}
.footer-note{margin:0;flex:1 1 320px;max-width:60ch;line-height:1.7}

/* ---------- 8. 面包屑 ---------- */
.crumbs{padding-top:20px}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-family:var(--font-mono);font-size:12px;color:var(--mist)}
.crumbs__link{color:var(--mist);text-decoration:none}
.crumbs__link:hover{color:var(--cyan-signal);text-decoration:none}
.crumbs__sep{color:rgba(155,169,191,.5)}
.crumbs__current{color:var(--paper)}

/* ---------- 9. 区块与版式 ---------- */
.section{padding-block:clamp(36px,5.5vw,72px)}
.section__head{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,34ch);
  align-items:end;
  gap:14px 32px;
  padding-bottom:16px;
  margin-bottom:28px;
  border-bottom:1px solid var(--line);
}
.section__title{margin:0}
.section__note{margin:0;font-size:13.5px;line-height:1.75;color:var(--mist)}
.page-head{padding:clamp(24px,4vw,44px) 0 clamp(20px,3vw,32px);border-bottom:1px solid var(--line)}
.page-head__title{margin:0 0 12px}
.page-head__note{margin:0;max-width:62ch;font-size:15.5px;color:var(--mist)}
.prose{max-width:70ch}
.prose p{font-size:16.5px}
.prose ul,.prose ol{color:rgba(232,237,245,.88)}

/* ---------- 10. 面板与表格 ---------- */
.panel{border:1px solid var(--line);background:var(--ink-800)}
.panel__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(34,224,200,.10),rgba(12,26,46,0) 70%);
}
.panel__title{margin:0;font-size:17px}
.panel__note{margin:0;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist);white-space:nowrap}
.panel__body{padding:16px}
.panel__body--flush{padding:0}

.ledger{width:100%;border-collapse:collapse;font-size:15px}
.ledger caption{caption-side:top;padding:0 0 10px;text-align:left;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;color:var(--mist)}
.ledger th,.ledger td{padding:10px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line-soft)}
.ledger thead th{border-bottom:1px solid var(--line-strong);font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.1em;color:var(--cyan-signal);white-space:nowrap}
.ledger tbody tr:nth-child(even){background:rgba(20,39,63,.45)}
.ledger tbody tr:hover{background:var(--ink-700)}
.ledger tbody tr:hover td:first-child{box-shadow:inset 2px 0 0 var(--cyan-signal)}
.ledger td .num,.ledger td.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:15.5px;color:var(--paper)}

/* ---------- 11. 图片容器基础 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-800);
}
.media > img,.media > svg,.media > picture img{display:block;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x2{aspect-ratio:3/2}
.media--1x1{aspect-ratio:1/1}
.media--tape{aspect-ratio:21/9}
.media__grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(34,224,200,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(34,224,200,.16) 1px,transparent 1px);
  background-size:32px 32px;
}
.media__caption{margin:8px 0 0;font-family:var(--font-mono);font-size:12px;line-height:1.6;color:var(--mist)}
.media--empty{
  display:grid;
  place-items:center;
  background:repeating-linear-gradient(135deg,rgba(20,39,63,.92) 0 12px,rgba(12,26,46,.92) 12px 24px);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--mist);
}

/* ---------- 12. 栅格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--editorial{grid-template-columns:minmax(0,240px) minmax(0,1fr)}
.grid--split{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr)}

/* ---------- 13. 滚动进度（可选组件） ---------- */
.progress{position:relative;height:2px;overflow:hidden;background:rgba(232,237,245,.10)}
.progress__bar{display:block;width:100%;height:100%;transform:scaleX(var(--p,0));transform-origin:left center;background:linear-gradient(90deg,var(--cyan-signal),var(--violet-link));transition:transform .12s linear}

/* ---------- 14. 显现动效 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .4s ease,transform .4s ease}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 15. 响应式 ---------- */
@media (min-width:1000px){
  .nav-frame__legend{display:block}
}
@media (max-width:899px){
  .nav-toggle{display:flex}
  .nav{display:none}
  .site-header[data-open] .nav{display:block}
  .site-header[data-open] .nav-list{flex-direction:column;counter-reset:navidx}
  .nav-link{border-right:0;border-top:1px solid var(--line-soft);padding:14px var(--gutter)}
  .nav-item:first-child .nav-link{border-top:0}
  .status-tags{display:none}
  .brand-tag{display:none}
  .footer-frame{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--2,.grid--3,.grid--editorial,.grid--split{grid-template-columns:minmax(0,1fr)}
  .section__head{grid-template-columns:minmax(0,1fr)}
  #main-content{scroll-margin-top:180px}
}
@media (max-width:600px){
  body{font-size:16px}
  .brand-row{padding:12px var(--gutter);gap:12px}
  .cta-button{padding:10px 14px;font-size:14px}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .media--tape{aspect-ratio:16/9}
}

/* ---------- 16. 减弱动态 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    transition-delay:0ms!important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .status-dot{animation:none}
}