/* =========================================================
   乐竞体育中国站 · 共享样式表 /assets/site.css
   夜场靛蓝底 + 档案纸白区块 + 荧光青/暖橙数据高亮
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink-950:#070B1E;
  --ink-900:#0C1330;
  --ink-800:#16204A;
  --line:#243060;
  --paper:#F3EEE3;
  --cy:#35F2D0;
  --orange:#FF8A3D;
  --violet:#7C6BFF;
  --mist:#9AA6CC;
  --black:#0A0D16;

  --maxw:1240px;
  --gutter:clamp(18px,4vw,48px);
  --gap:24px;

  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-narrow:"Archivo Narrow","Oswald","Arial Narrow",Helvetica,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;

  --fs-display:clamp(2.2rem,5.6vw,4.2rem);
  --fs-h2:clamp(1.5rem,2.8vw,2.3rem);
  --fs-h3:clamp(1.1rem,1.6vw,1.35rem);

  --shadow-paper:10px 10px 0 -2px var(--ink-950),11px 11px 0 -2px var(--line);
  --shadow-card:0 18px 40px -30px rgba(0,0,0,.9);
  --header-h:132px;
}

/* ---------- 2. RESET ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 12px);
}
body{
  margin:0;
  min-height:100vh;
  background:var(--ink-900);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,figure,blockquote,pre{margin:0}
ul,ol{list-style:none;margin:0;padding:0}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px;border-radius:2px}
::selection{background:var(--cy);color:var(--ink-950)}

/* ---------- 3. 中文排版基线 ---------- */
h1,.h1{font-family:var(--font-serif);font-weight:700;font-size:var(--fs-display);line-height:1.14;letter-spacing:.01em}
h2,.h2{font-family:var(--font-serif);font-weight:700;font-size:var(--fs-h2);line-height:1.22}
h3,.h3{font-family:var(--font-sans);font-weight:600;font-size:var(--fs-h3);line-height:1.4}
p{line-height:1.75}
strong{font-weight:600;color:var(--paper)}

/* ---------- 4. 布局容器 ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,6vw,86px)}
.section--tight{padding-block:clamp(22px,3vw,40px)}
.section--paper{background:var(--paper);color:var(--black)}
.section--deep{background:var(--ink-950)}
.grid{display:grid;gap:var(--gap)}
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.col-main{grid-column:span 8;min-width:0}
.col-side{grid-column:span 4;min-width:0}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 5. 章节头部组件 ---------- */
.section-label{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-narrow);
  font-size:.76rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cy);
}
.section-label::before{content:"";width:26px;height:1px;background:currentColor;flex:0 0 auto}
.section-title{font-family:var(--font-serif);font-weight:700;font-size:var(--fs-h2);line-height:1.22;margin-top:12px}
.lede{margin-top:14px;max-width:56ch;font-size:1.02rem;color:var(--mist)}
.section--paper .section-label{color:#0B6B58}
.section--paper .lede{color:#454B6B}
.section--paper .rule{background:rgba(10,13,22,.16)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  font-family:var(--font-narrow);font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;
  background:var(--ink-800);color:var(--paper);border:1px solid var(--line);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{border-color:var(--cy);color:var(--cy)}
.btn--accent{background:var(--orange);border-color:var(--orange);color:var(--ink-950);font-weight:700}
.btn--accent:hover{background:#FFA163;border-color:#FFA163;color:var(--ink-950)}
.btn--ghost{background:transparent;color:var(--mist)}
.btn--ghost:hover{color:var(--cy)}

/* ---------- 7. 标签贴纸 ---------- */
.tag{
  display:inline-block;
  padding:4px 10px;
  font-family:var(--font-narrow);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  background:var(--ink-950);color:var(--mist);border:1px solid var(--line);
}
.tag--cyan{background:var(--cy);border-color:var(--cy);color:var(--ink-950);font-weight:700}
.tag--orange{background:var(--orange);border-color:var(--orange);color:var(--ink-950);font-weight:700}
.tag--violet{background:var(--violet);border-color:var(--violet);color:var(--paper);font-weight:700}

/* ---------- 8. 面板 / 卡片 / 纸张叠层 ---------- */
.panel{background:var(--ink-800);border:1px solid var(--line);padding:clamp(16px,2.4vw,24px);min-width:0}
.card{position:relative;background:var(--ink-800);border:1px solid var(--line);padding:clamp(16px,2.4vw,24px);box-shadow:var(--shadow-card);min-width:0}
.card::before{
  content:"";position:absolute;top:-1px;left:-1px;width:14px;height:14px;
  border-top:1px solid var(--cy);border-left:1px solid var(--cy);pointer-events:none;
}
.paper{position:relative;background:var(--paper);color:var(--black);padding:clamp(20px,3vw,34px);box-shadow:var(--shadow-paper)}

/* ---------- 9. 数据锚点 ---------- */
.kpi{display:flex;flex-direction:column;gap:4px;min-width:0}
.kpi-value{
  font-family:var(--font-mono);
  font-size:clamp(1.7rem,4vw,2.7rem);
  font-weight:600;line-height:1;letter-spacing:-.02em;
  color:var(--cy);
}
.kpi-label{font-family:var(--font-narrow);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--mist)}
.kpi--warm .kpi-value{color:var(--orange)}
.kpi--violet .kpi-value{color:var(--violet)}
.section--paper .kpi-label{color:#5A6183}
.section--paper .kpi-value{color:#0B6B58}
.section--paper .kpi--warm .kpi-value{color:#C1500F}

/* ---------- 10. 图片容器（页面阶段放置 img） ---------- */
.media-frame{
  position:relative;overflow:hidden;isolation:isolate;
  background:var(--ink-800);border:1px solid var(--line);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.3;
}
.media-frame--4x5{aspect-ratio:4/5}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--3x2{aspect-ratio:3/2}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame__overlay{
  position:absolute;left:12px;bottom:12px;z-index:2;
  padding:4px 8px;
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;
  color:var(--cy);background:rgba(7,11,30,.78);border:1px solid var(--line);
}
.media-caption{margin-top:10px;font-size:.78rem;color:var(--mist)}

/* ---------- 11. 侧栏目录 / 面包屑 / 正文 ---------- */
.sticky-index{position:sticky;top:calc(var(--header-h) + 16px)}
.index-list{display:flex;flex-direction:column;border-left:1px solid var(--line)}
.index-link{
  position:relative;display:block;
  padding:9px 0 9px 16px;
  font-size:.86rem;color:var(--mist);
  transition:color .12s ease;
}
.index-link::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:2px;
  background:transparent;transition:background .12s ease;
}
.index-link:hover{color:var(--paper)}
.index-link[aria-current="true"]{color:var(--cy)}
.index-link[aria-current="true"]::before{background:var(--cy)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-family:var(--font-narrow);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
}
.breadcrumb a{color:var(--mist)}
.breadcrumb a:hover{color:var(--cy)}
.breadcrumb span{color:var(--line)}
.breadcrumb [aria-current]{color:var(--paper)}

.prose{max-width:38em}
.prose p{margin-bottom:1.15em}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{margin:1.8em 0 .7em}
.prose ul{margin:0 0 1.15em;padding-left:1.1em;list-style:square}
.prose li{margin-bottom:.5em}
.prose a{border-bottom:1px solid var(--line)}
.prose a:hover{border-color:var(--cy);color:var(--cy)}

/* ---------- 12. 跳转链接 ---------- */
.skip-link{
  position:fixed;left:50%;top:0;z-index:200;
  transform:translate(-50%,-140%);
  padding:10px 18px;
  font-family:var(--font-narrow);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  background:var(--cy);color:var(--ink-950);
  transition:transform .18s ease;
}
.skip-link:focus{transform:translate(-50%,8px)}

/* ---------- 13. 页头 · 居中刊头 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink-950);
  border-bottom:1px solid var(--line);
  color:var(--paper);
  transition:box-shadow .2s ease;
}
.site-header.is-condensed{box-shadow:0 14px 34px -26px rgba(0,0,0,.95)}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;z-index:2;
  display:block;height:2px;width:0;background:var(--cy);
}
.masthead{
  position:relative;
  max-width:var(--maxw);margin-inline:auto;
  padding:18px var(--gutter) 0;
}
.masthead-top{
  position:relative;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding-bottom:14px;
}
.brand-block{display:flex;flex-direction:column;align-items:center;gap:5px;text-align:center}
.brand-mark{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(1.45rem,3.2vw,2.05rem);
  line-height:1.1;letter-spacing:.09em;color:var(--paper);
  transition:color .2s ease;
}
.brand-mark:hover{color:var(--cy)}
.brand-sub{
  font-family:var(--font-narrow);font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--mist);
}
.header-tools{position:absolute;right:0;top:4px;display:flex;gap:10px}
.header-action{
  display:inline-block;white-space:nowrap;
  padding:7px 12px;
  font-family:var(--font-narrow);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  background:var(--ink-900);border:1px solid var(--line);color:var(--mist);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.header-action:hover{border-color:var(--cy);color:var(--cy)}
.header-action.is-accent{border-color:var(--orange);color:var(--orange)}
.header-action.is-accent:hover{background:var(--orange);color:var(--ink-950)}

.site-nav{display:block}
.nav-list{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:clamp(12px,2.6vw,34px);
  padding-top:12px;border-top:1px solid var(--line);
}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 0;
  font-family:var(--font-narrow);font-size:.84rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--mist);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--cy);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cy)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{
  display:none;position:absolute;right:0;top:6px;
  align-items:center;gap:10px;
  padding:8px 12px;
  background:var(--ink-900);border:1px solid var(--line);color:var(--paper);
  font-family:var(--font-narrow);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
}
.nav-toggle:hover{border-color:var(--cy);color:var(--cy)}
.nav-toggle-label{line-height:1}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:1.5px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* 滚动后收成细条 */
.site-header.is-condensed .masthead{padding-top:8px}
.site-header.is-condensed .masthead-top{padding-bottom:6px}
.site-header.is-condensed .brand-mark{font-size:1.12rem;letter-spacing:.14em}
.site-header.is-condensed .brand-sub{display:none}
.site-header.is-condensed .header-tools{top:0}
.site-header.is-condensed .header-action{padding:5px 10px}
.site-header.is-condensed .nav-list{padding-top:8px;gap:clamp(10px,2vw,26px)}
.site-header.is-condensed .nav-link{font-size:.76rem;padding:5px 0}

/* ---------- 14. 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--ink-950);
  border-top:1px solid var(--line);
  color:var(--paper);
}
.footer-inner{
  max-width:var(--maxw);margin-inline:auto;
  padding:clamp(38px,5vw,66px) var(--gutter) clamp(24px,3vw,42px);
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.35fr;
  gap:clamp(20px,3vw,42px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.footer-mark{font-family:var(--font-serif);font-weight:700;font-size:1.32rem;letter-spacing:.07em}
.footer-tagline{font-size:.88rem;color:var(--mist);max-width:24ch}
.footer-cta{
  margin-top:6px;
  padding:9px 16px;
  font-family:var(--font-narrow);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;
  background:var(--orange);color:var(--ink-950);font-weight:700;
  transition:background .2s ease;
}
.footer-cta:hover{background:#FFA163}
.footer-col{display:flex;flex-direction:column;min-width:0}
.footer-col-title{
  margin-bottom:14px;
  font-family:var(--font-narrow);font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cy);
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{font-size:.88rem;color:var(--mist);transition:color .2s ease}
.footer-list a:hover{color:var(--paper)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.copy-field{
  display:flex;flex-direction:column;align-items:flex-start;gap:3px;
  width:100%;padding:9px 11px;text-align:left;
  background:var(--ink-900);border:1px dashed var(--line);
  transition:border-color .2s ease;
}
.copy-field:hover{border-color:var(--cy)}
.copy-field-label{font-family:var(--font-narrow);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--mist)}
.copy-field-value{font-family:var(--font-mono);font-size:.8rem;color:var(--paper);word-break:break-all}
.copy-field-hint{font-size:.68rem;color:var(--violet)}
.copy-field.is-copied{border-style:solid;border-color:var(--cy)}
.copy-field.is-copied .copy-field-hint{color:var(--cy)}
.footer-hours{font-size:.77rem;color:var(--mist);margin-top:4px}
.footer-address{font-size:.77rem;color:var(--mist)}
.footer-base{
  max-width:var(--maxw);margin-inline:auto;
  padding:16px var(--gutter) 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  border-top:1px solid var(--line);
}
.footer-meta{font-family:var(--font-mono);font-size:.74rem;color:var(--mist)}
.to-top{
  margin-left:auto;
  padding:8px 14px;
  font-family:var(--font-narrow);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  background:var(--ink-900);border:1px solid var(--line);color:var(--mist);
  transition:color .2s ease,border-color .2s ease;
}
.to-top:hover{border-color:var(--cy);color:var(--cy)}

/* ---------- 15. 动效协议 ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .32s ease,transform .32s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1023px){
  .col-main,.col-side{grid-column:1 / -1}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:860px){
  :root{--header-h:96px}
  html{scroll-padding-top:104px}
  .header-tools{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none}
  .site-nav[data-open="true"]{
    display:block;
    padding-top:8px;padding-bottom:16px;
    border-top:1px solid var(--line);
    margin-top:6px;
  }
  .nav-list{flex-direction:column;gap:0;border-top:0;padding-top:0}
  .nav-list li{border-bottom:1px solid var(--line)}
  .nav-link{display:block;padding:14px 4px;font-size:.9rem}
  .nav-link::after{display:none}
  .masthead-top{padding-bottom:10px}
  .site-header.is-condensed .nav-list{padding-top:0}
}
@media (max-width:599px){
  .footer-inner{grid-template-columns:1fr}
  .footer-base{flex-direction:column;align-items:flex-start}
  .to-top{margin-left:0}
  .wrap{padding-inline:16px}
  .media-frame__overlay{left:8px;bottom:8px;font-size:.68rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
}