/* ============================================================
   博业体育主站 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 刊头 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 0. 设计令牌 ---------- */
:root{
  --ink-950:#071A19;
  --ink-900:#08211F;
  --ink-800:#0E3A38;
  --ink-750:#12403E;
  --ink-700:#164B48;

  --paper:#F4F0E6;
  --paper-deep:#E7E1D2;
  --paper-text:#153230;

  --orange:#F0651E;
  --orange-soft:#F7B98A;
  --blue:#2E7DA6;
  --blue-deep:#1E5A7A;
  --grass:#7BA88D;
  --amber:#E3B341;
  --grey:#8C9494;

  --line:#2A3B3A;
  --line-soft:rgba(140,148,148,.26);

  --shadow-lg:0 18px 44px rgba(3,14,13,.46);
  --shadow-sm:0 6px 18px rgba(3,14,13,.30);

  --r-xs:4px;
  --r-sm:8px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:34px;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --maxw:1180px;
  --pad:clamp(18px,4vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:132px;
}

body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--paper);
  background-color:var(--ink-800);
  background-image:
    repeating-linear-gradient(90deg,rgba(255,255,255,.016) 0 1px,transparent 1px 92px),
    radial-gradient(120% 62% at 50% -6%,rgba(46,125,166,.20),transparent 62%);
  background-repeat:repeat,no-repeat;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.25}
p,dl,dd,dt,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
img{height:auto}
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%}
hr{border:0}
::selection{background:var(--orange);color:#081211}

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

/* ---------- 2. 中文排版基调 ---------- */
.num,
[data-num]{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  letter-spacing:.01em;
}

.unit{
  font-family:var(--font-mono);
  font-size:.78em;
  font-weight:400;
  color:var(--grey);
  margin-left:.35em;
}

.label{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--grey);
}

.display{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.02em;
  line-height:1.05;
  font-size:clamp(44px,7vw,112px);
}

.section-head{margin:0}
.section-head__title{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.2;
  font-size:clamp(26px,3.2vw,42px);
  color:var(--paper);
}
.section-head__rule{
  width:64px;height:3px;margin-top:14px;
  background:var(--orange);border-radius:2px;
}
.section-head__note{
  margin-top:12px;
  max-width:56ch;
  font-size:13.5px;
  letter-spacing:.04em;
  color:var(--grey);
}

.rule-scale{
  height:12px;
  border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 34px);
  margin-block:clamp(28px,4vw,54px);
}

/* ---------- 3. 布局辅助 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--pad);
}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--12{grid-template-columns:repeat(12,1fr)}

@media (min-width:960px){
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-5{grid-column:span 5}
  .span-7{grid-column:span 7}
  .span-8{grid-column:span 8}
  .span-12{grid-column:span 12}
}

.prose{
  max-width:38em;
  background:var(--paper);
  color:var(--paper-text);
  border-radius:var(--r-lg) var(--r-lg) var(--r-sm) var(--r-lg);
  padding:clamp(24px,4vw,52px);
  box-shadow:var(--shadow-sm);
}
.prose p + p{margin-top:1.1em}
.prose h2{
  font-family:var(--font-display);
  font-size:clamp(22px,2.4vw,30px);
  margin-top:1.6em;
}
.prose h3{font-size:18px;margin-top:1.4em;letter-spacing:.01em}
.prose a{color:var(--blue-deep);border-bottom:1px solid rgba(30,90,122,.35)}
.prose a:hover{border-color:var(--blue-deep)}
.prose ul,.prose ol{margin-top:1em;padding-left:1.4em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-top:.4em}

/* ---------- 4. 刊头 ---------- */
.skip-link{
  position:absolute;
  left:14px;top:-70px;
  z-index:200;
  padding:10px 20px;
  background:var(--orange);
  color:#081211;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(8,33,31,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header[data-stuck]{
  background:rgba(7,26,25,.98);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}

.progress-rail{
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:rgba(46,125,166,.18);
  overflow:hidden;
  pointer-events:none;
}
.progress-rail__bar{
  display:block;
  width:100%;height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--blue) 0%,var(--blue) 58%,var(--orange) 100%);
}

.masthead{position:relative}
.masthead__inner{
  position:relative;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:10px var(--pad) 12px;
  display:grid;
  gap:6px;
}

.masthead__topline{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 18px;
  padding-bottom:8px;
  border-bottom:1px dashed var(--line);
}
.masthead__status{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--grey);
  margin:0;
}
.masthead__status .num{color:var(--orange-soft)}
.masthead__actions{display:flex;align-items:center;gap:16px}
.util-link{
  font-size:12px;
  letter-spacing:.14em;
  color:rgba(244,240,230,.86);
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.util-link:hover{color:var(--orange-soft);border-color:var(--orange-soft)}

.masthead__brandrow{
  display:flex;
  justify-content:center;
  align-items:center;
  padding:6px 0 2px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.brand__mark{
  position:relative;
  flex:none;
  width:26px;height:26px;
  border:2px solid var(--orange);
  border-radius:50%;
}
.brand__mark::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:8px;height:8px;
  margin:-4px 0 0 -4px;
  border-radius:50%;
  background:var(--blue);
}
.brand__text{display:flex;flex-direction:column;align-items:flex-start;line-height:1.1}
.brand__name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(20px,2.6vw,30px);
  letter-spacing:-.01em;
  color:var(--paper);
}
.brand__sub{
  margin-top:3px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--grey);
}

.masthead__navbar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:12px;
  padding-top:8px;
  border-top:1px solid var(--line);
}

.nowmark{
  grid-column:1;
  justify-self:start;
  display:flex;
  align-items:baseline;
  gap:8px;
  min-width:0;
  margin:0;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--grey);
}
.nowmark__label{color:var(--grey)}
.nowmark__value{
  font-family:var(--font-mono);
  letter-spacing:.04em;
  color:var(--orange-soft);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.nav{grid-column:2;justify-self:center}
.nav__list{display:flex;flex-wrap:wrap;justify-content:center;gap:2px}
.nav__item{margin:0}
.nav__link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:14px;
  letter-spacing:.04em;
  color:rgba(244,240,230,.78);
  border-radius:var(--r-xs);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.nav__link:hover{color:var(--paper);background:rgba(46,125,166,.10)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--paper)}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--blue)}

.nav-toggle{
  grid-column:3;
  justify-self:end;
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--paper);
  font-size:12px;
  letter-spacing:.14em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange-soft);color:var(--orange-soft)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:2px;border-radius:2px;background:var(--orange)}
.nav-toggle__bars i:nth-child(2){width:70%}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){width:100%}
.nav-toggle__text{line-height:1}

/* 滚动压缩态 */
.site-header[data-stuck] .masthead__topline{display:none}
.site-header[data-stuck] .masthead__inner{padding-block:6px 8px;gap:0}
.site-header[data-stuck] .masthead__brandrow{padding:0}
.site-header[data-stuck] .brand__mark{width:20px;height:20px}
.site-header[data-stuck] .brand__mark::after{width:6px;height:6px;margin:-3px 0 0 -3px}
.site-header[data-stuck] .brand__name{font-size:18px}
.site-header[data-stuck] .brand__sub{display:none}
.site-header[data-stuck] .masthead__navbar{border-top:0;padding-top:2px}
.site-header[data-stuck] .nav__link{padding-block:6px;font-size:13px}

/* ---------- 5. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(48px,7vw,96px);
  background:var(--ink-900);
  border-top:1px solid var(--line);
}
.footer__ruler{
  height:10px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 40px);
  background-position:left top;
  border-bottom:1px solid var(--line);
}
.footer__grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3,1fr);
  gap:clamp(22px,3vw,44px);
  padding-block:clamp(34px,5vw,60px);
}
.footer__brand{min-width:0}
.brand--foot{justify-content:flex-start}
.brand--foot .brand__name{font-size:20px}
.footer__tagline{
  margin-top:16px;
  max-width:34ch;
  font-size:14px;
  line-height:1.7;
  color:rgba(244,240,230,.74);
}
.footer__version{
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--grey);
}
.footer__version .num{color:var(--orange-soft)}
.footer__note{
  margin-top:8px;
  font-size:12px;
  line-height:1.7;
  color:var(--grey);
  max-width:36ch;
}
.footer__heading{
  padding-bottom:9px;
  margin-bottom:12px;
  border-bottom:1px solid var(--line);
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--grey);
}
.footer__links{display:grid;gap:2px}
.footer__link{
  display:inline-block;
  padding:5px 0;
  font-size:14.5px;
  color:rgba(244,240,230,.82);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer__link:hover{color:var(--orange-soft);transform:translateX(3px)}

.footer__base{
  display:grid;
  gap:10px;
  padding-block:22px 36px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  letter-spacing:.03em;
  color:var(--grey);
}
.footer__contact{
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.8;
  color:rgba(244,240,230,.78);
  word-break:break-word;
}
.footer__addr{font-size:12.5px;color:var(--grey)}
.footer__legal{display:flex;flex-wrap:wrap;gap:6px 22px}
.footer__legal a{
  color:rgba(244,240,230,.8);
  border-bottom:1px solid var(--line-soft);
  padding-bottom:1px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer__legal a:hover{color:var(--orange-soft);border-color:var(--orange-soft)}
.footer__copy{font-size:12px;color:var(--grey)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  font-size:14px;
  letter-spacing:.06em;
  color:var(--paper);
  transition:border-color .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{border-color:var(--orange-soft);color:var(--orange-soft);transform:translateY(-1px)}
.btn--primary{border-color:var(--orange);color:var(--orange);background:rgba(240,101,30,.07)}
.btn--primary:hover{background:var(--orange);color:#081211;border-color:var(--orange)}
.btn--ghost{border-color:var(--line-soft);color:rgba(244,240,230,.86)}
.btn--ghost:hover{border-color:var(--blue);color:#BFE0F0}
.btn--sm{padding:8px 14px;font-size:12.5px}

/* ---------- 7. 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-block:18px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--grey);
}
.crumbs li{display:inline-flex;align-items:center}
.crumbs li + li::before{content:"/";color:var(--line)}
.crumbs a{color:rgba(244,240,230,.76);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.crumbs a:hover{color:var(--orange-soft);border-color:var(--orange-soft)}
.crumbs [aria-current="page"]{color:var(--orange-soft)}

/* ---------- 8. 卡片与数据 ---------- */
.card{
  position:relative;
  padding:clamp(16px,2.2vw,26px);
  background:linear-gradient(160deg,rgba(22,75,72,.55),rgba(8,33,31,.86));
  border:1px solid var(--line);
  border-radius:var(--r-md) var(--r-md) var(--r-xs) var(--r-md);
  transition:border-color .18s var(--ease),background-color .18s var(--ease),transform .18s var(--ease);
}
.card:hover{border-color:rgba(247,185,138,.5);transform:translateY(-2px)}
.card__title{
  font-family:var(--font-display);
  font-size:19px;
  letter-spacing:0;
  color:var(--paper);
}
.card__meta{margin-top:8px;font-size:12.5px;color:var(--grey);line-height:1.7}

.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  line-height:1;
  font-size:clamp(24px,3.4vw,38px);
  color:var(--orange);
}
.stat__label{font-size:12.5px;letter-spacing:.06em;color:var(--grey)}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--grey);
}
.chip--live{border-color:rgba(240,101,30,.55);color:var(--orange-soft)}
.chip--warn{border-color:rgba(227,179,65,.5);color:var(--amber)}
.chip--ok{border-color:rgba(123,168,141,.5);color:var(--grass)}

/* ---------- 9. 横向刻度轴 ---------- */
.axis{
  position:relative;
  display:flex;
  overflow-x:auto;
  padding:22px 0 14px;
  border-top:1px solid var(--line);
  scrollbar-width:thin;
}
.axis__node{
  position:relative;
  flex:0 0 auto;
  min-width:104px;
  padding-top:16px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--grey);
}
.axis__node::before{
  content:"";
  position:absolute;
  top:-23px;left:0;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--ink-800);
  border:2px solid var(--line);
}
.axis__node[data-state="done"]::before{border-color:var(--grass);background:var(--grass)}
.axis__node[data-state="current"]{color:var(--orange-soft)}
.axis__node[data-state="current"]::before{border-color:var(--orange);background:var(--orange)}

/* ---------- 10. 折叠披露 ---------- */
.disclosure{border-bottom:1px solid var(--line)}
.disclosure__trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:15px 0;
  text-align:left;
  font-size:16px;
  color:var(--paper);
  transition:color .18s var(--ease);
}
.disclosure__trigger:hover{color:var(--orange-soft)}
.disclosure__sign{
  flex:none;
  font-family:var(--font-mono);
  font-size:15px;
  color:var(--orange);
}
.disclosure__panel{
  display:none;
  padding:0 0 20px;
  max-width:64ch;
  font-size:15.5px;
  line-height:1.75;
  color:rgba(244,240,230,.82);
}
.disclosure[data-open] .disclosure__panel{display:block}

/* ---------- 11. 图像容器基础 ---------- */
.figure{
  position:relative;
  display:block;
  min-height:180px;
  overflow:hidden;
  isolation:isolate;
  background:var(--ink-950);
  border-radius:var(--r-lg) var(--r-lg) var(--r-xs) var(--r-lg);
}
.figure > img,
.figure > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.68) contrast(1.06) brightness(.92);
}
.figure::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  background:
    linear-gradient(180deg,rgba(8,33,31,0) 36%,rgba(8,33,31,.76) 100%),
    radial-gradient(90% 70% at 50% 0%,rgba(46,125,166,.22),transparent 70%);
}
.figure--field::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(123,168,141,.09) 0 7%,rgba(8,33,31,.12) 7% 14%);
}
.figure__cap{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:3;
  padding:14px 18px;
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(244,240,230,.86);
}
.figure--wide{aspect-ratio:16/9}
.figure--field{aspect-ratio:4/3}
.figure--portrait{aspect-ratio:3/4}
.figure--banner{aspect-ratio:21/9}

/* ---------- 12. 动效与显现协议 ---------- */
[data-js] [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
[data-js] [data-reveal][data-shown]{opacity:1;transform:none}

/* ---------- 13. 响应式 ---------- */
@media (min-width:960px){
  body{background-attachment:fixed,fixed}
}

@media (max-width:1100px){
  .footer__grid{grid-template-columns:1.3fr repeat(3,1fr);gap:24px}
}

@media (max-width:960px){
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
}

@media (max-width:900px){
  html{scroll-padding-top:150px}

  .nav-toggle{display:inline-flex;grid-column:3}
  .masthead__navbar{grid-template-columns:1fr auto;row-gap:0}
  .nowmark{grid-column:1;justify-self:start}

  .nav{
    position:absolute;
    left:0;right:0;top:100%;
    z-index:5;
    display:none;
    grid-column:auto;
    justify-self:stretch;
    padding:8px var(--pad) 18px;
    background:rgba(7,26,25,.99);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .nav[data-open]{display:block;animation:navIn .2s var(--ease) both}
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__link{display:block;padding:14px 4px;border-bottom:1px solid var(--line);font-size:15px}
  .nav__link::after{left:4px;right:auto;width:18px;bottom:8px}
  .nav__link:hover{background:transparent}

  .site-header[data-stuck] .nav__link{font-size:15px;padding-block:14px}

  @keyframes navIn{
    from{opacity:0;transform:translateY(-6px)}
    to{opacity:1;transform:none}
  }
}

@media (max-width:700px){
  body{font-size:16px}
  .masthead__topline{font-size:11px}
  .masthead__status{font-size:10.5px;letter-spacing:.02em}
  .masthead__actions{gap:12px}
  .util-link{font-size:11px;letter-spacing:.1em}
  .brand__sub{letter-spacing:.1em}
  .nowmark__label{display:none}
}

@media (max-width:600px){
  .footer__grid{grid-template-columns:1fr}
  .footer__tagline,
  .footer__note{max-width:none}
  .footer__legal{gap:6px 16px}
}

/* ---------- 14. 减少动效 ---------- */
@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;
  }
  [data-js] [data-reveal]{opacity:1;transform:none}
  .progress-rail__bar{transition:none}
}