/* ============================================================
   /assets/site.css — 乐竟赛场 共享外壳
   暗场球探工作台：墨绿底 / 蓝图网格 / 信号青绿 / 琥珀金
   ============================================================ */

:root{
  --ink-void:#061512;
  --ink-deep:#0A231C;
  --ink-raised:#102E26;
  --grid-line:#1E4238;
  --signal:#2BF5A0;
  --signal-deep:#16A36B;
  --amber:#FFB63D;
  --amber-deep:#C97F12;
  --text:#E8F3EE;
  --text-soft:#B9CDC5;
  --muted:#9DB5AC;

  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;

  --wrap:1440px;
  --pad:clamp(16px,3vw,40px);
  --radius:14px;
  --nav-bp:900px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--ink-void);
  background-image:
    linear-gradient(to right,rgba(30,66,56,.55) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(30,66,56,.55) 1px,transparent 1px),
    radial-gradient(900px 520px at 12% -8%,rgba(43,245,160,.07),transparent 72%),
    radial-gradient(700px 420px at 96% 4%,rgba(255,182,61,.045),transparent 70%);
  background-size:24px 24px,24px 24px,100% 100%,100% 100%;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:where(h1,h2,h3,h4,h5,p,figure,blockquote){margin:0}
table{border-collapse:collapse;width:100%}
::selection{background:var(--signal);color:var(--ink-void)}

h1,h2,h3,h4,h5{font-weight:900;letter-spacing:-.02em;line-height:1.1;color:var(--text)}
strong{font-weight:700;color:var(--text)}

:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}

/* ---------- 排版工具 ---------- */
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);
}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--signal);flex:none}
.display{
  font-size:clamp(38px,6vw,86px);
  font-weight:900;line-height:1.05;letter-spacing:-.02em;color:var(--text);
}
.lede{
  font-size:clamp(16px,1.6vw,19px);line-height:1.75;
  color:var(--text-soft);max-width:60ch;
}
.prose{max-width:70ch;font-size:16px;line-height:1.8;color:#CFDCD6}
.prose p+p{margin-top:1.2em}
.prose h2{font-size:clamp(22px,2.4vw,28px);margin:1.8em 0 .7em}
.prose h3{font-size:20px;margin:1.6em 0 .6em}
.prose ul{list-style:none;margin:1em 0}
.prose li{position:relative;padding-left:20px;margin:.5em 0}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:1px;background:var(--signal-deep)}
.prose a{color:var(--signal);border-bottom:1px solid rgba(43,245,160,.4)}
.prose a:hover{border-bottom-color:var(--signal)}

/* ---------- 布局 ---------- */
.wrap{
  width:100%;max-width:var(--wrap);
  margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);
}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.section{padding:clamp(40px,6vw,80px) 0;position:relative}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px;padding-bottom:18px;border-bottom:1px solid var(--grid-line);
}
.section-title{font-size:clamp(26px,3vw,36px);font-weight:900;letter-spacing:-.02em}
.rule{height:1px;background:var(--grid-line);border:0;margin:0}

/* ---------- 按钮 / 胶囊 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:999px;
  font-size:14px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn--signal{background:var(--signal);color:var(--ink-void)}
.btn--signal:hover{background:#5CFFBC}
.btn--ghost{border-color:var(--grid-line);background:rgba(16,46,38,.6);color:var(--text)}
.btn--ghost:hover{border-color:var(--signal);color:var(--signal)}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 13px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.chip--signal{background:var(--signal);color:var(--ink-void)}
.chip--signal:hover{background:#5CFFBC}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border:1px solid var(--grid-line);background:var(--ink-raised);color:var(--muted);
}
.tag--ver{
  height:26px;padding:0 15px;border:0;border-radius:0;
  font-weight:700;color:var(--ink-void);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
}
.tag--v3{background:linear-gradient(104deg,var(--signal) 0 46%,var(--signal-deep) 46% 100%)}
.tag--v2{background:linear-gradient(104deg,var(--amber) 0 46%,var(--amber-deep) 46% 100%)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:12px;color:var(--muted);letter-spacing:.02em}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";font-family:var(--font-mono);color:var(--grid-line)}
.breadcrumb a{color:var(--muted);transition:color .16s ease}
.breadcrumb a:hover{color:var(--signal)}
.breadcrumb [aria-current="page"]{color:var(--text)}

/* ---------- 数据列表 ---------- */
.data-list{border-top:1px solid var(--grid-line)}
.data-row{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;
  align-items:center;gap:16px;
  padding:14px 10px;
  border-bottom:1px solid var(--grid-line);
  transition:background .16s ease;
}
.data-row:nth-child(even){background:rgba(16,46,38,.55)}
.data-row:hover{background:rgba(22,163,107,.13)}
.data-index{
  font-family:var(--font-mono);font-size:13px;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
  color:var(--amber);
}

/* ---------- 筛选协议 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-btn{
  height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--grid-line);background:var(--ink-deep);
  font-size:13px;color:var(--muted);
  transition:color .16s ease,border-color .16s ease,background .16s ease;
}
.filter-btn:hover{color:var(--text);border-color:var(--signal-deep)}
.filter-btn[aria-pressed="true"]{
  background:var(--signal);border-color:var(--signal);
  color:var(--ink-void);font-weight:700;
}
.filter-count{
  margin-left:auto;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--muted);
}
[data-filter-item].is-filtered{display:none}

/* ---------- 图片容器基础规则 ---------- */
.img-frame{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--grid-line);border-radius:var(--radius);
  aspect-ratio:16/9;
  background:linear-gradient(150deg,#0E2A22 0%,#071A16 72%);
}
.img-frame>img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.55) hue-rotate(-8deg) brightness(.86);
}
.img-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(43,245,160,.10) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(43,245,160,.10) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:linear-gradient(160deg,#000 0%,transparent 74%);
  mask-image:linear-gradient(160deg,#000 0%,transparent 74%);
}
.img-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:10px 14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--text);
  background:linear-gradient(180deg,transparent,rgba(6,21,18,.92));
}
.img-frame--wide{aspect-ratio:21/9}
.img-frame--tall{aspect-ratio:3/4}
.img-frame--square{aspect-ratio:1/1}

/* ---------- 无障碍 ---------- */
.skip-link{
  position:fixed;left:12px;top:-80px;z-index:120;
  padding:10px 18px;border-radius:10px;
  background:var(--signal);color:var(--ink-void);
  font-size:13px;font-weight:700;
  transition:top .18s ease;
}
.skip-link:focus{top:12px}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(180deg,rgba(6,21,18,.97),rgba(10,35,28,.94));
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--grid-line);
  transition:box-shadow .22s ease;
}
.site-header.is-pinned{box-shadow:0 14px 34px rgba(0,0,0,.42)}

.hdr-top{border-bottom:1px solid var(--grid-line)}
.hdr-top-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:58px;
}

.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  position:relative;width:22px;height:22px;flex:none;
  border:1px solid var(--signal);border-radius:7px;
  box-shadow:inset 0 0 12px rgba(43,245,160,.35);
}
.brand-mark::after{
  content:"";position:absolute;inset:5px;
  background:var(--signal);border-radius:2px;
  clip-path:polygon(0 0,100% 0,100% 62%,42% 100%,0 100%);
}
.brand-name{font-size:19px;font-weight:900;letter-spacing:-.02em;color:var(--text)}

.hdr-meta{display:flex;align-items:center;gap:16px;min-width:0}
.brand-tagline{
  font-size:13px;color:var(--muted);letter-spacing:.02em;white-space:nowrap;
}
.hdr-stamp{
  display:inline-flex;align-items:center;gap:7px;
  font-size:11px;color:var(--muted);letter-spacing:.1em;white-space:nowrap;
}
.pulse{
  width:6px;height:6px;border-radius:50%;flex:none;background:var(--signal);
  box-shadow:0 0 0 0 rgba(43,245,160,.55);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(43,245,160,.55)}
  70%{box-shadow:0 0 0 8px rgba(43,245,160,0)}
  100%{box-shadow:0 0 0 0 rgba(43,245,160,0)}
}

.hdr-nav-row{position:relative}
.hdr-nav-inner{display:flex;align-items:center;gap:20px;min-height:52px}
.nav-index{
  flex:none;padding-right:16px;
  border-right:1px solid var(--grid-line);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
  white-space:nowrap;
}
.nav-list{display:flex;align-items:stretch;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:52px;padding:0 14px;
  font-size:14px;font-weight:500;color:var(--muted);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--signal);border-radius:3px 3px 0 0;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1);background:var(--signal-deep)}
.nav-link[aria-current="page"]{color:var(--text);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--signal)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  height:40px;padding:0 13px;border-radius:10px;
  border:1px solid var(--grid-line);background:var(--ink-raised);
  font-size:13px;font-weight:700;color:var(--text);
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--signal);color:var(--signal)}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle-bars i{
  display:block;height:1.5px;border-radius:2px;background:currentColor;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle.is-open .nav-toggle-bars i:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle.is-open .nav-toggle-bars i:nth-child(2){opacity:0}
.nav-toggle.is-open .nav-toggle-bars i:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(30,66,56,.65);overflow:hidden;
}
.scroll-progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--signal-deep),var(--signal));
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  border-top:1px solid var(--grid-line);
  background:var(--ink-deep);
  color:var(--text);
}
.site-footer::before{
  content:"";position:absolute;left:0;top:-1px;height:2px;width:100%;
  background:linear-gradient(90deg,var(--signal) 0%,var(--signal-deep) 18%,transparent 46%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .85fr .85fr 1.1fr;
  gap:40px;
  padding:clamp(36px,5vw,56px) 0 clamp(28px,4vw,40px);
}
.footer-brand .brand{margin-bottom:14px}
.footer-line{
  font-size:14px;line-height:1.8;color:var(--muted);max-width:30ch;
}
.footer-stamp{
  margin-top:18px;
  font-size:11px;letter-spacing:.16em;color:var(--signal-deep);
}
.footer-title{
  font-family:var(--font-mono);
  font-size:11px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  margin-bottom:16px;padding-bottom:10px;
  border-bottom:1px solid var(--grid-line);
}
.footer-list li+li{margin-top:10px}
.footer-list a{
  display:inline-block;
  font-size:14px;color:var(--text-soft);
  transition:color .16s ease,transform .16s ease;
}
.footer-list a:hover{color:var(--signal);transform:translateX(3px)}

.contact-list li+li{margin-top:12px}
.contact-row{display:flex;align-items:flex-start;gap:10px}
.contact-key{
  flex:none;min-width:42px;padding-top:3px;
  font-size:10px;letter-spacing:.12em;color:var(--signal-deep);
}
.contact-val{font-size:13px;line-height:1.7;color:var(--text-soft);word-break:break-word}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;
  padding:18px 0 22px;
  border-top:1px solid var(--grid-line);
}
.footer-legal{font-size:12px;color:var(--muted)}
.footer-legal .mono{color:var(--text-soft);font-size:11px;letter-spacing:.08em}
.footer-update{font-size:11px;letter-spacing:.1em;color:var(--muted)}

/* ---------- 滚动显现 ---------- */
html.js-ready [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
html.js-ready [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .brand-tagline{display:none}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px}
  .footer-contact{grid-column:1 / -1}
  .contact-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px}
  .contact-list li+li{margin-top:0}
}

@media (max-width:900px){
  .site-header{-webkit-backdrop-filter:none;backdrop-filter:none}
  .hdr-top-inner{min-height:52px;gap:12px}
  .hdr-meta{gap:12px}
  .hdr-stamp{display:none}

  .chip--signal{
    position:fixed;right:16px;bottom:16px;z-index:60;
    height:44px;padding:0 20px;font-size:13px;
    box-shadow:0 12px 30px rgba(0,0,0,.55);
  }

  .hdr-nav-inner{min-height:56px;justify-content:space-between;gap:0}
  .nav-index{display:none}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;z-index:55;
    max-height:0;overflow:hidden;
    background:var(--ink-deep);
    border-bottom:1px solid var(--grid-line);
    box-shadow:0 22px 40px rgba(0,0,0,.45);
    transition:max-height .28s ease;
  }
  .site-nav[data-open="true"]{max-height:74vh;overflow-y:auto}
  .nav-list{flex-direction:column;gap:0;padding:8px var(--pad) 18px}
  .nav-link{
    height:auto;width:100%;padding:15px 6px;
    font-size:16px;
    border-bottom:1px solid rgba(30,66,56,.7);
  }
  .nav-link::after{
    left:0;right:auto;top:50%;bottom:auto;
    width:3px;height:18px;border-radius:3px;
    transform:translateY(-50%) scaleY(0);transform-origin:center top;
  }
  .nav-link:hover::after,
  .nav-link[aria-current="page"]::after{transform:translateY(-50%) scaleY(1)}

  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
  .data-row{grid-template-columns:44px minmax(0,1fr) auto;gap:12px;padding:12px 8px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:620px){
  .brand-name{font-size:17px}
  .grid-12{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .contact-list{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .filter-count{margin-left:0;width:100%}
  .data-row{grid-template-columns:44px minmax(0,1fr);row-gap:6px}
}

/* ---------- 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;
  }
  .pulse{animation:none}
  html.js-ready [data-reveal]{opacity:1;transform:none}
  .scroll-progress-bar{transition:none}
}