/* =========================================================
   万合足球看台 · 共享层 /assets/site.css
   框架导航 + 战术板 Bento + 夜间看台页脚
   ========================================================= */

:root{
  --concrete:#D7D9D3;
  --concrete-deep:#C6C9C1;
  --paper:#F5F6F0;
  --night:#0B1A2A;
  --night-2:#12283D;
  --pitch:#2F7D4E;
  --deep:#174D31;
  --volt:#C8FF3D;
  --cyan:#00D9C0;
  --ink:#111614;
  --gray:#6C7470;
  --signal:#FF6B35;

  --line:rgba(17,22,20,.16);
  --line-strong:rgba(17,22,20,.34);
  --line-dark:rgba(245,246,240,.18);

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-cond:"Barlow Condensed","Oswald","Arial Narrow","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --rail:6px;
  --gutter:clamp(16px,3vw,32px);
  --maxw:1280px;
  --cut:10px;
  --cut-lg:18px;
  --shadow-1:0 14px 30px -22px rgba(11,26,42,.7);
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--concrete);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit}
a{color:inherit}
p{text-wrap:pretty}
::selection{background:var(--volt);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 2. 排版与文字组件 ---------- */
.display{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.16;
  letter-spacing:.015em;
  color:var(--ink);
}
.lede{
  max-width:62ch;
  font-size:clamp(16px,1.5vw,18.5px);
  line-height:1.8;
  color:#2A332F;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--deep);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:3px;
  background:var(--volt);
  box-shadow:0 0 0 1px var(--deep);
}
.mono{font-family:var(--font-mono);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.rule{height:1px;border:0;margin:0;background:var(--line)}

/* ---------- 3. 布局容器与网格 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-left:calc(var(--gutter) + var(--rail));
  padding-right:var(--gutter);
}
.section{padding-block:clamp(40px,6vw,72px)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:clamp(20px,3vw,32px);
}
.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(12px,1.6vw,20px);
}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-6{grid-column:span 6}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}
@media (max-width:900px){
  .col-3,.col-4,.col-8{grid-column:span 12}
  .col-6{grid-column:span 6}
}
@media (max-width:560px){
  .col-6{grid-column:span 12}
}

/* ---------- 4. 按钮 ---------- */
.btn{
  --btn-bg:var(--pitch);
  --btn-fg:var(--paper);
  --btn-bd:var(--deep);
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.72em 1.15em;
  background:var(--btn-bg);
  color:var(--btn-fg);
  border:1px solid var(--btn-bd);
  border-radius:0;
  font-family:var(--font-sans);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:hover{transform:translate(-1px,-1px)}
.btn-primary{--btn-bg:var(--pitch);--btn-fg:var(--paper);--btn-bd:var(--deep)}
.btn-primary:hover{--btn-bg:var(--deep)}
.btn-volt{--btn-bg:var(--volt);--btn-fg:var(--ink);--btn-bd:var(--volt)}
.btn-volt:hover{--btn-bg:#D9FF6E;--btn-bd:#D9FF6E}
.btn-ghost{--btn-bg:transparent;--btn-fg:var(--ink);--btn-bd:var(--line-strong)}
.btn-ghost:hover{--btn-bd:var(--pitch);--btn-fg:var(--deep)}
.btn-sm{font-size:13px;padding:.55em .95em}

/* ---------- 5. 卡片 / 切角 / 标签 / 数据 ---------- */
.cut{
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.card{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  padding:clamp(16px,2vw,24px);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--pitch);box-shadow:var(--shadow-1)}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:.35em .72em;
  background:var(--paper);
  border:1px solid var(--line-strong);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.tag:hover{border-color:var(--pitch);color:var(--deep)}
.tag--active,
.tag[aria-pressed="true"]{background:var(--night);border-color:var(--night);color:var(--volt)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{
  font-family:var(--font-cond);
  font-weight:800;
  font-size:clamp(40px,7vw,76px);
  line-height:.95;
  letter-spacing:.01em;
  color:var(--night);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gray);
}
.stat--on-dark .stat-num{color:var(--volt)}
.stat--on-dark .stat-label{color:#9FB0AC}

/* ---------- 6. 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--line-strong);
  background-color:var(--concrete-deep);
  background-image:repeating-linear-gradient(135deg,rgba(245,246,240,.55) 0 12px,transparent 12px 24px);
  clip-path:polygon(0 0,calc(100% - var(--cut-lg)) 0,100% var(--cut-lg),100% 100%,0 100%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-cap{
  position:absolute;
  left:0;
  bottom:0;
  max-width:88%;
  padding:.4em .7em;
  background:var(--night);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--gray);
}
.breadcrumb-list{display:flex;flex-wrap:wrap;gap:.5em;align-items:center}
.breadcrumb-list li{display:flex;align-items:center;gap:.5em}
.breadcrumb-list li + li::before{content:"/";color:var(--line-strong)}
.breadcrumb-link{text-decoration:none;border-bottom:1px solid transparent;transition:color .16s ease,border-color .16s ease}
.breadcrumb-link:hover{color:var(--deep);border-bottom-color:var(--pitch)}
.breadcrumb-current{color:var(--ink)}

/* ---------- 8. 框架式导航头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--paper);
  box-shadow:0 2px 0 rgba(17,22,20,.06);
}
.site-header::before{
  content:"";
  position:fixed;
  top:0;
  bottom:0;
  left:0;
  width:var(--rail);
  background:repeating-linear-gradient(180deg,var(--deep) 0 10px,var(--pitch) 10px 11px);
  pointer-events:none;
  z-index:2;
}
.skip-link{
  position:absolute;
  left:8px;
  top:-200px;
  z-index:200;
  padding:10px 16px;
  background:var(--volt);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus{top:8px;outline:2px solid var(--night);outline-offset:2px}

.header-top{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,24px);
  padding:10px var(--gutter) 10px calc(var(--gutter) + var(--rail));
  background:var(--night);
  color:var(--paper);
  border-bottom:2px solid var(--pitch);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--paper);
}
.brand-glyph{
  flex:none;
  width:32px;
  height:32px;
  background-color:var(--volt);
  background-image:repeating-linear-gradient(135deg,rgba(23,77,49,.92) 0 2px,transparent 2px 8px);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  transition:transform .18s ease;
}
.brand:hover .brand-glyph{transform:translateY(-2px)}
.brand-words{display:flex;flex-direction:column;gap:1px;min-width:0}
.brand-name{
  font-size:17px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1.25;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  line-height:1.3;
  color:var(--volt);
}
.header-utility{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,18px);
  margin-left:auto;
}
.utility-tip{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-size:12.5px;
  letter-spacing:.06em;
  color:#9FB0AC;
}
.utility-dot{
  width:7px;
  height:7px;
  flex:none;
  background:var(--volt);
  box-shadow:0 0 0 3px rgba(200,255,61,.18);
}
.header-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--volt);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .12s linear;
  pointer-events:none;
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:.6em;
  padding:8px 12px;
  background:transparent;
  border:1px solid rgba(245,246,240,.38);
  color:var(--paper);
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
  transition:border-color .16s ease,color .16s ease;
}
.nav-toggle:hover{border-color:var(--volt);color:var(--volt)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:12px;flex:none}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:currentColor;
  transition:transform .2s ease,top .2s ease,box-shadow .2s ease;
}
.nav-toggle-bars::before{top:0;box-shadow:0 5px 0 currentColor}
.nav-toggle-bars::after{top:10px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg);box-shadow:none}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:5px;transform:rotate(-45deg)}
.nav-toggle-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em}

.site-nav{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 var(--gutter) 0 calc(var(--gutter) + var(--rail));
  background:var(--concrete);
  border-bottom:1px solid var(--line-strong);
}
.nav-list{display:flex;flex-wrap:wrap;align-items:stretch;min-width:0}
.nav-item{display:flex}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:.55em;
  padding:14px clamp(10px,1.4vw,18px);
  color:#242E2A;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.03em;
  text-decoration:none;
  border-bottom:3px solid transparent;
  transition:color .16s ease,background-color .16s ease,border-color .16s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  right:50%;
  bottom:-1px;
  height:2px;
  background:var(--cyan);
  transition:left .2s ease,right .2s ease;
}
.nav-link:hover{color:var(--deep);background:rgba(245,246,240,.72)}
.nav-link:hover::after{left:12px;right:12px}
.nav-index{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  color:var(--gray);
  transition:color .16s ease;
}
.nav-link:hover .nav-index{color:var(--pitch)}
.nav-link[aria-current="page"]{
  color:var(--night);
  background:var(--paper);
  border-bottom-color:var(--pitch);
}
.nav-link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--pitch);
}
.nav-link[aria-current="page"]::after{
  left:12px;
  right:auto;
  width:22px;
  height:3px;
  bottom:6px;
  background:var(--volt);
}
.nav-link[aria-current="page"] .nav-index{color:var(--pitch)}
.nav-trace{
  flex:none;
  align-self:stretch;
  width:74px;
  min-height:26px;
  background-image:repeating-linear-gradient(115deg,var(--deep) 0 2px,transparent 2px 12px);
  opacity:.45;
}

@media (max-width:959px){
  .nav-toggle{display:inline-flex}
  .utility-tip{display:none}
  .header-top{padding:9px 12px 9px calc(12px + var(--rail))}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:0 0 10px;
    background:var(--paper);
    border-bottom:3px solid var(--deep);
    box-shadow:inset var(--rail) 0 0 var(--deep),0 26px 42px -30px rgba(11,26,42,.8);
    max-height:calc(100vh - 96px);
    overflow-y:auto;
  }
  .site-header[data-open="true"] .site-nav{display:flex}
  .nav-list{flex-direction:column}
  .nav-item + .nav-item .nav-link{border-top:1px dashed var(--line)}
  .nav-link{width:100%;padding:15px 18px;border-bottom:0}
  .nav-link::after{display:none}
  .nav-link:hover{background:var(--concrete)}
  .nav-link[aria-current="page"]{background:var(--concrete);box-shadow:inset 4px 0 0 var(--deep)}
  .nav-link[aria-current="page"]::after{display:none}
  .nav-trace{display:none}
}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:clamp(48px,7vw,88px);
  padding:clamp(36px,5vw,64px) 0 22px;
  background:
    radial-gradient(120% 90% at 84% -10%,#16324B 0%,rgba(22,50,75,0) 62%),
    var(--night);
  color:#DCE3E0;
  border-top:6px solid var(--pitch);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:min(42%,320px);
  height:100%;
  background-image:repeating-linear-gradient(115deg,rgba(200,255,61,.12) 0 1px,transparent 1px 16px);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:1}
.footer-masthead{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-dark);
}
.footer-ident{min-width:0}
.footer-wordmark{
  font-family:var(--font-cond);
  font-weight:800;
  font-size:clamp(28px,5vw,46px);
  line-height:1;
  letter-spacing:.08em;
  color:var(--paper);
  transform:skewX(-4deg);
  transform-origin:left bottom;
}
.footer-tagline{
  margin-top:.7em;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--volt);
}
.footer-stamp{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:#8FA09B;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
  padding:clamp(24px,3.4vw,40px) 0;
}
.footer-col{min-width:0}
.footer-col-title{
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--volt);
}
.footer-text{margin-bottom:10px;font-size:14px;line-height:1.7;color:#B9C4C0}
.footer-text--muted{font-size:13px;color:#8A9995}
.footer-list{display:flex;flex-direction:column;gap:8px}
.footer-list li{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px;
  font-size:14px;
  line-height:1.6;
}
.footer-link{
  color:#DCE3E0;
  text-decoration:none;
  padding-bottom:1px;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-link:hover{color:var(--volt);border-bottom-color:var(--volt)}
.footer-key{
  min-width:2.6em;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:#7E8F8A;
}
.footer-value{font-size:13.5px;color:#DCE3E0;word-break:break-word}
.footer-icp{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:#8A9995;
}
.copy-btn{
  padding:2px 8px;
  background:transparent;
  border:1px solid rgba(200,255,61,.5);
  color:var(--volt);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease;
}
.copy-btn:hover{background:var(--volt);color:var(--ink)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  padding-top:16px;
  border-top:1px solid var(--line-dark);
}
.footer-note{flex:1 1 280px;font-size:12.5px;line-height:1.6;color:#8A9995}
.footer-meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:#8A9995}
.to-top{
  margin-left:auto;
  padding:8px 14px;
  background:transparent;
  border:1px solid rgba(245,246,240,.32);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
  transition:border-color .16s ease,color .16s ease,background-color .16s ease;
}
.to-top:hover{border-color:var(--volt);color:var(--volt)}
@media (max-width:900px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .footer-wordmark{transform:none}
}

/* ---------- 10. 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;
    scroll-behavior:auto !important;
  }
  .card:hover,.btn:hover,.brand:hover .brand-glyph{transform:none}
}