/* ===========================================================
   华体育会赛场 · 共享样式 /assets/site.css
   夜场战术板：深墨绿控制台 + 信号橙数据 + 电光青焦点
   =========================================================== */

:root{
  --ink:#0B2B26;
  --ink-2:#123D35;
  --paper:#F4ECD8;
  --orange:#FF6A2A;
  --cyan:#3DE0D0;
  --mist:#8FA8A0;
  --red:#D94F3D;
  --grid:#2E5A50;
  --white:#F7FBF8;
  --sand:#D8CBB3;

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

  --shell:1280px;
  --pad:clamp(16px,4vw,40px);
  --hairline:1px solid var(--grid);
  --radius:2px;
  --ease:cubic-bezier(.2,.6,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--ink);
  background-image:
    radial-gradient(circle at 14% -12%,rgba(61,224,208,.09),transparent 46%),
    radial-gradient(circle at 92% -6%,rgba(255,106,42,.08),transparent 42%);
  background-repeat:no-repeat;
  color:var(--white);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;letter-spacing:-.02em;line-height:1.14;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;}
button{font:inherit;color:inherit;}
a{color:var(--cyan);text-decoration:none;transition:color .18s var(--ease);}
a:hover{text-decoration:underline;text-underline-offset:.24em;}
strong{font-weight:800;color:var(--white);}
::selection{background:var(--orange);color:var(--ink);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px;}
#main-content{display:block;scroll-margin-top:120px;}

/* ---------- 基础排版与布局 ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad);}
.section{padding-block:clamp(40px,6vw,80px);}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px;padding-bottom:14px;margin-bottom:clamp(22px,3vw,36px);
  border-bottom:var(--hairline);
}
.section-head h2{margin:0;font-size:clamp(1.4rem,2.2vw,2rem);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--orange);}
.display{margin:0;font-size:clamp(3rem,8vw,7.5rem);line-height:.94;letter-spacing:-.03em;}
.page-title{margin:0 0 .35em;font-size:clamp(2rem,4vw,4rem);}
.lede{max-width:46ch;margin:0;color:var(--mist);font-size:clamp(1rem,1.2vw,1.125rem);}
.rule{border:0;border-top:var(--hairline);margin:clamp(24px,4vw,40px) 0;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:12px;top:-64px;z-index:200;
  padding:10px 16px;border-radius:var(--radius);
  background:var(--orange);color:var(--ink);
  font-size:13px;font-weight:800;letter-spacing:.04em;text-decoration:none;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;text-decoration:none;}

/* ---------- 网格 ---------- */
.grid-2,.grid-3{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-auto{display:grid;gap:clamp(16px,2.4vw,24px);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));}
@media (max-width:860px){
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr);}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;border:1px solid transparent;border-radius:var(--radius);
  font-size:13px;font-weight:800;letter-spacing:.04em;line-height:1.2;
  white-space:nowrap;cursor:pointer;text-decoration:none;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover,.btn:focus-visible{text-decoration:none;}
.btn-primary{background:var(--orange);border-color:var(--orange);color:var(--ink);}
.btn-primary:hover{background:var(--white);border-color:var(--white);color:var(--ink);}
.btn-ghost{background:transparent;border-color:var(--grid);color:var(--white);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

/* ---------- 面板 / 资料卡 ---------- */
.panel{
  background:var(--ink-2);border:var(--hairline);border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
}
.paper{
  background:var(--paper);color:var(--ink);border-radius:var(--radius);
  padding:clamp(20px,3vw,40px);
}
.paper h1,.paper h2,.paper h3,.paper strong{color:var(--ink);}
.paper p{color:#20362f;}
.paper a{color:var(--ink);text-decoration:underline;text-decoration-color:rgba(217,79,61,.55);text-underline-offset:.24em;}
.paper a:hover{text-decoration-color:var(--orange);}
.card{
  background:var(--ink-2);border:var(--hairline);border-radius:var(--radius);
  padding:clamp(16px,2vw,22px);
  box-shadow:0 1px 0 rgba(0,0,0,.28),0 10px 26px -22px rgba(0,0,0,.9);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.card:hover{border-color:rgba(61,224,208,.45);box-shadow:0 1px 0 rgba(0,0,0,.28),0 16px 34px -24px rgba(61,224,208,.5);}
.card-title{margin:0 0 8px;font-size:1.05rem;}
.card-meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist);}

/* ---------- 数据大字 ---------- */
.stat{display:flex;flex-direction:column;gap:4px;}
.stat-value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(2.5rem,5vw,5rem);line-height:.95;letter-spacing:-.03em;color:var(--orange);
}
.stat-label{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mist);
}

/* ---------- 分类标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border:var(--hairline);border-radius:var(--radius);
  background:rgba(216,203,179,.06);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--mist);
}
.tag--cyan{color:var(--cyan);border-color:rgba(61,224,208,.42);}
.tag--orange{color:var(--orange);border-color:rgba(255,106,42,.46);}

/* ---------- 数据表 ---------- */
.table-scroll{overflow-x:auto;border:var(--hairline);border-radius:var(--radius);-webkit-overflow-scrolling:touch;}
.data-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:13px;min-width:520px;}
.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:var(--hairline);}
.data-table th{
  font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--mist);
  background:rgba(18,61,53,.7);white-space:nowrap;
}
.data-table td{color:var(--white);}
.data-table tbody tr:nth-child(even){background:rgba(18,61,53,.45);}
.data-table .num{text-align:right;font-variant-numeric:tabular-nums;}
.data-table tbody tr:last-child td{border-bottom:0;}

/* ---------- 图像容器（供页面阶段使用） ---------- */
.media-frame{
  position:relative;overflow:hidden;border:var(--hairline);border-radius:var(--radius);
  aspect-ratio:16/9;
  background:
    linear-gradient(135deg,rgba(46,90,80,.6),rgba(11,43,38,.92)),
    var(--ink-2);
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(61,224,208,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(61,224,208,.16) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:4/5;}
.media-caption{
  margin:10px 0 0;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.08em;color:var(--mist);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--mist);}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:0 8px;}
.breadcrumb-list li{display:inline-flex;align-items:center;color:var(--mist);}
.breadcrumb-list li+li::before{content:"/";margin-right:8px;color:var(--grid);}
.breadcrumb a{color:var(--mist);}
.breadcrumb a:hover{color:var(--cyan);}

/* ---------- 入场显影 ---------- */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.js [data-reveal].is-revealed{opacity:1;transform:none;}

/* ===========================================================
   共享头部
   =========================================================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,43,38,.965);
  border-bottom:var(--hairline);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.progress-track{position:absolute;top:0;left:0;right:0;height:2px;background:rgba(46,90,80,.55);}
.progress-bar{display:block;width:0;height:100%;background:var(--orange);transition:width .12s linear;}

.header-top{
  display:flex;align-items:center;gap:clamp(12px,2vw,28px);
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:14px var(--pad) 13px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0;text-decoration:none;color:var(--white);}
.brand:hover{text-decoration:none;}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:42px;height:42px;border:var(--hairline);border-radius:var(--radius);
  background:var(--ink-2);
  font-family:var(--font-mono);font-size:19px;font-weight:700;color:var(--orange);
  box-shadow:inset 0 0 0 1px rgba(61,224,208,.12);
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.25;white-space:nowrap;}
.brand-tag{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;
  color:var(--mist);line-height:1.4;white-space:nowrap;
}
.header-utility{
  margin:0 0 0 auto;
  padding-left:16px;border-left:var(--hairline);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--mist);white-space:nowrap;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.header-utility+.header-actions{margin-left:0;}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;border:var(--hairline);border-radius:var(--radius);
  background:transparent;color:var(--white);
  font-size:12px;letter-spacing:.12em;cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bar{position:relative;width:18px;height:2px;background:var(--orange);transition:background-color .2s var(--ease);}
.nav-toggle-bar::before,.nav-toggle-bar::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--orange);
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle-bar::before{top:-6px;}
.nav-toggle-bar::after{top:6px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar{background:transparent;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{top:0;transform:rotate(-45deg);}

.site-nav{
  border-top:var(--hairline);
  background:linear-gradient(180deg,rgba(18,61,53,.92),rgba(11,43,38,.86));
}
.nav-list{
  display:flex;flex-wrap:nowrap;
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding-inline:var(--pad);
  overflow-x:auto;scrollbar-width:thin;
}
.nav-item{
  flex:1 1 0;min-width:max-content;
  border-left:var(--hairline);
}
.nav-item:last-child{border-right:var(--hairline);}
.nav-link{
  position:relative;display:flex;align-items:center;gap:8px;
  padding:12px 14px;min-height:44px;
  color:var(--mist);font-size:13.5px;font-weight:700;letter-spacing:.04em;
  text-decoration:none;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--white);background:rgba(61,224,208,.08);text-decoration:none;}
.nav-link:hover .nav-index{color:var(--cyan);}
.nav-index{font-family:var(--font-mono);font-size:10px;font-weight:400;letter-spacing:.08em;color:rgba(143,168,160,.72);transition:color .18s var(--ease);}
.nav-label{white-space:nowrap;}
.nav-link[aria-current="page"]{color:var(--white);background:rgba(255,106,42,.12);}
.nav-link[aria-current="page"] .nav-index{color:var(--orange);}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--orange);
}

/* ===========================================================
   共享页脚
   =========================================================== */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:var(--ink-2);
  border-top:var(--hairline);
  color:var(--mist);
  font-size:14px;
}
.footer-inner{width:100%;max-width:var(--shell);margin-inline:auto;padding:clamp(32px,5vw,56px) var(--pad) 0;}
.footer-grid{
  display:grid;grid-template-columns:1.7fr .8fr .8fr 1.35fr;
  gap:clamp(24px,4vw,48px);
  padding-bottom:clamp(26px,4vw,40px);
}
.footer-brand-name{display:block;margin-bottom:8px;font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--white);}
.footer-line{
  margin:0 0 14px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.14em;color:var(--orange);
}
.footer-about{max-width:34ch;margin:0;line-height:1.8;color:var(--mist);}
.footer-col-title{
  margin:0 0 14px;font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--sand);
}
.footer-list li+li{margin-top:8px;}
.footer-list a{
  color:var(--mist);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-list a:hover{color:var(--white);border-bottom-color:var(--cyan);text-decoration:none;}
.footer-contact{font-size:13px;}
.contact-row{
  display:flex;gap:12px;align-items:flex-start;
  padding:8px 0;border-top:1px solid rgba(46,90,80,.72);
}
.contact-key{
  flex:0 0 48px;padding-top:2px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--sand);
}
.contact-value{color:var(--white);font-size:13px;line-height:1.7;word-break:break-word;}
.contact-note{margin:14px 0 0;font-size:12px;line-height:1.75;color:var(--mist);}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  padding:18px 0 26px;border-top:var(--hairline);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--mist);
}
.footer-base a{color:var(--mist);text-decoration:none;}
.footer-base a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:.24em;}
.footer-icp{margin-left:auto;color:rgba(143,168,160,.85);}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1180px){
  .header-utility{display:none;}
  .header-actions{margin-left:auto;}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex;}
  .site-nav{display:none;}
  .site-nav[data-open]{display:block;}
  .nav-list{flex-direction:column;overflow:visible;padding-inline:var(--pad);}
  .nav-item{flex:none;min-width:0;border-left:0;border-top:var(--hairline);}
  .nav-item:last-child{border-right:0;}
  .nav-link{padding:14px 4px;font-size:14.5px;}
  .nav-link[aria-current="page"]::after{left:0;right:auto;width:3px;top:0;bottom:0;height:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .footer-about{max-width:56ch;}
}

@media (max-width:700px){
  .header-actions .btn-ghost{display:none;}
  .brand-mark{width:38px;height:38px;font-size:17px;}
  .brand-name{font-size:15.5px;}
  .brand-tag{font-size:9px;letter-spacing:.12em;}
}

@media (max-width:620px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-icp{margin-left:0;}
  .footer-base{gap:6px 16px;}
  .nav-toggle-label{display:none;}
  .nav-toggle{padding:9px 10px;}
  .btn{padding:8px 13px;font-size:12.5px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .js [data-reveal]{opacity:1;transform:none;}
  .progress-bar{transition:none;}
}