/* ==========================================================================
   华体育 · 共享样式表 /assets/site.css
   reset · 变量 · 中文字排 · 头部 · 页脚 · 通用组件
   ========================================================================== */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}
body{margin:0}
img,svg,video{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
[hidden]{display:none !important}

:root{
  --red:#E23127;
  --red-dark:#9E2B20;
  --rock:#23262B;
  --graphite:#3A3F46;
  --ash:#787E86;
  --cream:#F3EEE6;
  --white:#FFFFFF;
  --neon:#C8FF4D;
  --moss:#6B7A4F;
  --night:#14171A;
  --amber:#F2A63B;
  --clay:#D8C9B4;
  --ink:#1B1E22;
  --ink-soft:#4A5058;

  --line:3px solid var(--rock);
  --shadow-hard:8px 8px 0 rgba(20,23,26,.88);
  --shadow-panel:6px 6px 0 rgba(20,23,26,.16);

  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --wrap:1360px;
  --gut:clamp(16px,4vw,48px);
  --header-h:88px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --skew:-3deg;
}

body{
  padding-top:var(--header-h);
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
}

:focus-visible{outline:3px solid var(--red);outline-offset:3px}
.site-header :focus-visible,
.site-footer :focus-visible{outline-color:var(--neon)}

[id]{scroll-margin-top:calc(var(--header-h) + 12px)}

html.nav-open{overflow:hidden}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:14px;top:-80px;z-index:400;
  display:inline-block;padding:11px 18px;
  background:var(--neon);color:var(--rock);
  border:3px solid var(--rock);box-shadow:5px 5px 0 var(--rock);
  font-size:14px;font-weight:700;letter-spacing:.08em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;left:0;right:0;top:0;z-index:200;
  color:#fff;
  background:rgba(20,23,26,.22);
  -webkit-backdrop-filter:blur(9px);
  backdrop-filter:blur(9px);
  border-bottom:3px solid transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-state="compact"]{
  background:var(--rock);
  border-bottom-color:var(--red);
  box-shadow:0 6px 0 rgba(20,23,26,.22);
}
.header-inner{
  position:relative;z-index:2;
  max-width:var(--wrap);margin:0 auto;
  padding:22px var(--gut);
  display:flex;align-items:center;gap:clamp(12px,2vw,30px);
  transition:padding .3s var(--ease);
}
.site-header[data-state="compact"] .header-inner{padding-top:12px;padding-bottom:12px}

.brand{display:flex;align-items:center;gap:12px;min-height:44px;flex:0 0 auto}
.brand-badge{
  display:grid;place-items:center;flex:0 0 auto;
  width:44px;height:44px;
  background:var(--red);color:#fff;
  border:3px solid rgba(255,255,255,.9);
  font-size:21px;font-weight:800;line-height:1;
  transform:skewX(-8deg);
  box-shadow:4px 4px 0 rgba(20,23,26,.55);
}
.brand-copy{display:flex;flex-direction:column;justify-content:center}
.brand-name{font-size:19px;font-weight:700;line-height:1.1;letter-spacing:.04em}
.brand-tag{
  margin-top:3px;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.18em;line-height:1.3;
  color:rgba(255,255,255,.62);
}

/* 导航 */
.site-nav{
  position:relative;z-index:1;
  flex:1 1 auto;
  display:flex;align-items:center;justify-content:flex-end;
  gap:clamp(6px,1.2vw,18px);
}
.nav-list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-item{display:block}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:10px 12px;
  font-size:14.5px;letter-spacing:.06em;
  color:rgba(255,255,255,.8);
  transition:color .2s var(--ease);
}
.nav-link::before{
  content:"";width:3px;height:14px;background:var(--neon);
  transform:scaleY(0);transform-origin:bottom;
  transition:transform .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;
  background:var(--neon);
  transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:#fff;font-weight:600}
.nav-link[aria-current="page"]::before{transform:scaleY(1)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

/* 移动端抽屉内区块（桌面隐藏） */
.nav-drawer{display:none}

/* 移动按钮 */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  min-height:44px;padding:9px 13px;
  background:rgba(255,255,255,.06);
  border:3px solid rgba(255,255,255,.45);
  color:#fff;cursor:pointer;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--neon);color:var(--neon)}
.nav-toggle-icon{display:flex;flex-direction:column;gap:4px;width:18px}
.nav-toggle-bar{display:block;height:2px;width:100%;background:currentColor}
.nav-toggle[aria-expanded="true"]{background:var(--red);border-color:var(--neon);color:#fff}

/* 头部装饰 */
.scroll-meter{position:absolute;left:0;right:0;bottom:0;display:block;height:3px;background:rgba(255,255,255,.16)}
.scroll-meter-bar{display:block;height:100%;width:0;background:var(--neon);transition:width .12s linear}
.header-scale{
  position:absolute;right:var(--gut);top:100%;
  width:160px;height:9px;
  color:#fff;opacity:.28;
  background:repeating-linear-gradient(90deg,currentColor 0 1px,transparent 1px 10px);
  pointer-events:none;
}
.site-header[data-state="compact"] .header-scale{opacity:.5}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;
  font-family:var(--font-body);
  font-size:14px;font-weight:700;letter-spacing:.08em;line-height:1.2;
  text-align:center;cursor:pointer;
  border:3px solid transparent;border-radius:0;
  transition:transform .18s var(--ease),background-color .18s var(--ease),
             color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-cta{
  background:var(--red);color:#fff;
  border-color:var(--neon);
  box-shadow:6px 6px 0 rgba(20,23,26,.62);
}
.btn-cta:hover{background:var(--red-dark);transform:translate(-2px,-2px);box-shadow:8px 8px 0 rgba(20,23,26,.68)}
.btn-cta:active{transform:translate(0,0);box-shadow:3px 3px 0 rgba(20,23,26,.6)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);transform:translate(-2px,-2px)}
.btn-outline{background:transparent;color:var(--rock);border-color:var(--rock);box-shadow:5px 5px 0 var(--rock)}
.btn-outline:hover{background:var(--rock);color:var(--neon);transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--red-dark)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  background:var(--night);
  color:#fff;
  border-top:6px solid var(--red);
}
.site-footer::before{
  content:"";position:absolute;top:-6px;left:0;
  width:min(38%,420px);height:6px;background:var(--neon);
}
.footer-inner{
  max-width:var(--wrap);margin:0 auto;
  padding:clamp(48px,7vw,96px) var(--gut) 30px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(240px,1fr) 1.7fr;
  gap:clamp(32px,5vw,72px);
  align-items:start;
}
.footer-mark{
  display:inline-block;
  font-family:var(--font-display);
  font-size:clamp(2rem,5vw,3.4rem);
  font-weight:300;line-height:1;letter-spacing:-.01em;
  transform:skewX(-4deg);
}
.footer-line{
  margin:18px 0 22px;max-width:32ch;
  color:rgba(255,255,255,.66);font-size:15px;line-height:1.7;
}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col-title{
  margin-bottom:14px;
  font-size:12px;font-weight:700;letter-spacing:.2em;
  color:var(--neon);
}
.footer-col a{
  display:inline-block;padding:5px 0;
  font-size:15px;color:rgba(255,255,255,.74);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col a:hover,.footer-col a:focus-visible{color:var(--neon);transform:translateX(4px)}

.footer-contact{
  display:flex;flex-wrap:wrap;gap:10px 30px;
  margin-top:clamp(36px,5vw,60px);padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:14.5px;color:rgba(255,255,255,.8);
}
.footer-contact-item{display:inline-flex;align-items:baseline;gap:9px}
.footer-key{
  font-family:var(--font-mono);
  font-size:11px;font-weight:700;letter-spacing:.16em;
  color:var(--neon);
}
.footer-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--ash)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;align-items:center;
  margin-top:26px;padding-top:18px;
  border-top:1px dashed rgba(255,255,255,.18);
}
.footer-legal,.footer-copy{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.08em;color:var(--ash);
}

/* ---------- 排版工具 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(2.4rem,7vw,6rem);
  line-height:.98;
  letter-spacing:-.02em;
  transform:skewX(var(--skew));
}
.section-title{
  font-family:var(--font-display);
  font-weight:400;
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  line-height:1.15;letter-spacing:-.01em;
}
.index-label{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ash);
}
.index-label::before{content:"";width:28px;height:3px;background:var(--red)}
.num,.mono{
  font-family:var(--font-mono);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.rule-tick{
  height:10px;color:var(--rock);opacity:.45;
  background:repeating-linear-gradient(90deg,currentColor 0 1px,transparent 1px 10px);
}

/* ---------- 布局 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.container--narrow{max-width:880px}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:clamp(16px,2.4vw,32px)}
.bleed-top{margin-top:calc(-1 * var(--header-h));padding-top:var(--header-h)}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.12em;color:var(--ash);
}
.crumbs a{transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--red)}
.crumb-sep{color:var(--clay)}

/* ---------- 面板与标签 ---------- */
.panel{
  background:var(--white);
  border:var(--line);
  box-shadow:var(--shadow-hard);
  padding:clamp(20px,3vw,36px);
}
.panel--dark{
  background:var(--rock);color:#fff;
  border-color:var(--rock);
  box-shadow:8px 8px 0 var(--red-dark);
}
.panel--cream{background:var(--cream);box-shadow:var(--shadow-panel)}
.panel-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;
  margin-bottom:16px;
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  background:var(--clay);color:var(--rock);
  border:2px solid var(--rock);
  font-size:12px;font-weight:700;letter-spacing:.08em;line-height:1.5;
}
.tag--live{background:var(--neon);border-color:var(--rock)}
.tag--moss{background:var(--moss);border-color:var(--moss);color:#fff}
.tag--red{background:var(--red);border-color:var(--red-dark);color:#fff}

.live-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 0 0 rgba(200,255,77,.75);
  animation:pulse 1.8s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(200,255,77,.75)}
  70%{box-shadow:0 0 0 9px rgba(200,255,77,0)}
  100%{box-shadow:0 0 0 0 rgba(200,255,77,0)}
}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(158px,1fr));
  background:var(--rock);color:#fff;
  border-top:3px solid var(--red);border-bottom:3px solid var(--red);
}
.stat{padding:22px clamp(16px,3vw,28px);border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:0}
.stat-num{
  font-family:var(--font-mono);font-weight:600;
  font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1.1;
  font-variant-numeric:tabular-nums;color:#fff;
}
.stat-num em{font-style:normal;color:var(--neon)}
.stat-label{margin-top:6px;font-size:12px;letter-spacing:.16em;color:var(--ash)}

/* ---------- 图片容器（页面阶段放置素材） ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  background:var(--graphite);
  border:var(--line);
  box-shadow:var(--shadow-hard);
}
.media-frame > img,
.media-frame > .media-cover{width:100%;height:100%;object-fit:cover;object-position:center}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(158deg,rgba(226,49,39,.2) 0%,rgba(20,23,26,.55) 72%);
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-placeholder{
  position:absolute;inset:0;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  color:rgba(255,255,255,.55);
}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.filter-chip{
  min-height:40px;padding:8px 16px;
  background:transparent;color:var(--rock);
  border:2px solid var(--rock);
  font-size:13px;font-weight:700;letter-spacing:.1em;line-height:1.3;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .18s var(--ease);
}
.filter-chip:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px)}
.filter-chip[aria-pressed="true"]{background:var(--rock);border-color:var(--rock);color:var(--neon)}
.filter-chip[aria-pressed="true"]:hover{color:var(--neon)}
[data-filter-item].is-hidden{display:none !important}

/* ---------- 说明牌 ---------- */
.plate{
  display:inline-block;
  background:var(--clay);
  border:3px solid var(--rock);
  padding:10px 14px;
  box-shadow:4px 4px 0 var(--rock);
}
.plate-title{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;color:var(--rock);
}
.plate-body{display:block;margin-top:4px;font-size:14px;color:var(--ink-soft)}

[data-note]{position:relative;cursor:help}
[data-note]::after{
  content:attr(data-note);
  position:absolute;left:0;bottom:calc(100% + 10px);z-index:6;
  min-width:180px;max-width:280px;
  padding:10px 12px;
  background:var(--rock);color:#fff;
  border:2px solid var(--neon);
  font-size:13px;line-height:1.55;letter-spacing:.02em;font-weight:400;
  opacity:0;transform:translateY(6px);pointer-events:none;
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
[data-note]:hover::after,
[data-note]:focus-visible::after{opacity:1;transform:translateY(0)}

/* ---------- 显现动效 ---------- */
.reveal-ready [data-reveal]{
  opacity:0;transform:translateY(24px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:calc(var(--reveal-delay,0) * 60ms);
}
.reveal-ready [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 返回顶部（JS 注入） ---------- */
.to-top{
  position:fixed;right:clamp(12px,3vw,28px);bottom:clamp(12px,3vw,28px);z-index:160;
  width:54px;height:54px;
  display:grid;place-items:center;
  background:var(--rock);color:var(--neon);
  border:3px solid var(--neon);
  box-shadow:6px 6px 0 var(--red);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  cursor:pointer;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),background-color .2s var(--ease);
}
.to-top.is-active{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--red);color:#fff}

/* ---------- 平板 ---------- */
@media (max-width:1180px){
  .nav-link{padding:10px 9px;font-size:13.5px;gap:6px}
  .header-cta{padding:10px 15px;font-size:13px}
  .header-inner{gap:14px}
}

/* ---------- 移动端抽屉 ---------- */
@media (max-width:960px){
  :root{--header-h:72px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;
    width:min(360px,88vw);
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;
    padding:calc(var(--header-h) + 22px) 22px 40px;
    background:var(--rock);
    border-left:3px solid var(--red);
    transform:translateX(102%);
    transition:transform .3s var(--ease);
    overflow-y:auto;
    box-shadow:-10px 0 0 rgba(20,23,26,.35);
  }
  .site-nav[data-open]{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;flex-wrap:nowrap}
  .nav-item{width:100%}
  .nav-link{
    width:100%;justify-content:flex-start;
    min-height:52px;padding:14px 8px;
    font-size:17px;
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  .nav-link::before{width:4px;height:18px}
  .nav-link::after{display:none}
  .nav-drawer{display:block;margin-top:28px}
  .nav-drawer-title{
    margin-bottom:12px;
    font-family:var(--font-mono);
    font-size:11px;letter-spacing:.2em;color:var(--neon);
  }
  .quick-list{display:grid;gap:10px}
  .quick-card{
    display:block;padding:12px 14px;
    background:rgba(255,255,255,.04);
    border:3px solid rgba(255,255,255,.16);
    transition:border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .quick-card:hover,.quick-card:focus-visible{border-color:var(--neon);background:rgba(200,255,77,.07)}
  .quick-k{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--neon)}
  .quick-v{display:block;margin-top:4px;font-size:15px;font-weight:600;color:#fff}
  .nav-drawer-cta{display:inline-flex;width:100%;margin-top:18px}
  .header-scale{display:none}

  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
}

/* ---------- 小屏 ---------- */
@media (max-width:720px){
  body{font-size:16px;line-height:1.72}
  .brand-badge{width:38px;height:38px;font-size:18px;border-width:2px}
  .brand-name{font-size:17px}
  .brand-tag{font-size:10px;letter-spacing:.14em}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 18px}
  .footer-contact{flex-direction:column;gap:10px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .stat{padding:18px 16px;border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}
  .panel{box-shadow:5px 5px 0 rgba(20,23,26,.85)}
  .media-frame{box-shadow:5px 5px 0 rgba(20,23,26,.85)}
  .to-top{width:48px;height:48px}
}

@media (max-width:480px){
  .footer-cols{grid-template-columns:1fr}
  .display{transform:none}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .reveal-ready [data-reveal]{opacity:1;transform:none}
  .to-top{opacity:1;transform:none;pointer-events:auto}
}