/* ============================================================
   云体育中心 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --paper:#F5F1E8;
  --paper-deep:#E7E0D2;
  --ink:#0C1826;
  --text:#14181F;
  --cyan:#4FB8C9;
  --cyan-deep:#1E6E7E;
  --lime:#C8F04A;
  --lime-soft:#EAF7C4;
  --sunset:#F2703A;
  --rock:#7A828E;
  --purple:#6C4CE0;
  --sand:#D9C9A8;

  --rail:88px;
  --band:44px;

  --radius-card:24px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --shadow-card:0 20px 38px -26px rgba(12,24,38,.55);

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

/* ---------- 2. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
h1,h2,h3,h4,h5,h6{font-weight:400;line-height:1.2}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:var(--cyan-deep);text-decoration:none;transition:color .18s var(--ease)}
a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
[hidden]{display:none !important}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--sunset);outline-offset:3px;border-radius:4px}

/* ---------- 3. 中文排版基元 ---------- */
.display-title{
  font-weight:300;
  font-size:clamp(2.6rem,6vw,5.4rem);
  line-height:1.02;
  letter-spacing:-.02em;
  color:var(--ink);
}
.data-heading{
  font-weight:900;
  font-stretch:88%;
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--ink);
}
.index-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  line-height:1.4;
  color:var(--rock);
  text-transform:uppercase;
}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:1.08em;
  color:var(--cyan-deep);
}
.caption{
  font-size:13px;
  line-height:1.6;
  color:var(--rock);
  border-left:2px solid var(--cyan);
  padding-left:10px;
}
.lede{
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  line-height:1.72;
  max-width:68ch;
  color:var(--text);
}
p{max-width:68ch}

/* ---------- 4. 容器与分区 ---------- */
.wrap{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:clamp(18px,3.4vw,52px);
}
.section{padding-block:clamp(40px,7vw,88px)}
.section--deep{background:var(--ink);color:var(--paper)}
.section--deep .display-title,
.section--deep .data-heading{color:var(--paper)}
.section--deep a{color:var(--cyan)}
.section__num{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--rock);
  margin-bottom:10px;
}
.page-shell{
  padding-left:var(--rail);
  padding-top:calc(var(--band) + 4px);
  min-height:60vh;
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:0;
  left:14px;
  z-index:300;
  transform:translateY(-130%);
  background:var(--lime);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  line-height:1;
  padding:12px 18px;
  border-radius:0 0 14px 14px;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);text-decoration:none}

/* ---------- 6. 头部 / 品牌带 ---------- */
.site-header{position:relative;z-index:80}
.brand-band{
  position:fixed;
  inset:0 0 auto 0;
  height:var(--band);
  z-index:90;
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 12px 0 10px;
  background:var(--ink);
  color:var(--paper);
  border-bottom:1px solid rgba(200,240,74,.26);
}
.brand-band__brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  color:var(--paper);
}
.brand-band__brand:hover{text-decoration:none;color:var(--paper)}
.brand-band__glyph{
  flex:0 0 auto;
  width:26px;
  height:26px;
  display:grid;
  place-items:center;
  background:var(--cyan);
  color:var(--ink);
  font-size:14px;
  font-weight:900;
  line-height:1;
  border-radius:9px 2px 9px 2px;
}
.brand-band__stack{display:flex;flex-direction:column;min-width:0;line-height:1.15}
.brand-band__name{font-size:15px;font-weight:700;letter-spacing:.04em;white-space:nowrap}
.brand-band__tagline{
  font-size:10.5px;
  letter-spacing:.1em;
  color:rgba(245,241,232,.55);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand-band__meta{margin-left:auto;display:flex;align-items:center;gap:10px}
.brand-band__lang{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  line-height:1;
  color:var(--lime);
  border:1px solid rgba(200,240,74,.34);
  border-radius:999px;
  padding:4px 9px;
}
.brand-band__link{color:rgba(245,241,232,.78);font-size:13px;white-space:nowrap}
.brand-band__link:hover{color:var(--cyan);text-decoration:none}
.brand-band__cta{flex:0 0 auto}

/* 抽屉按钮（移动端可见） */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  padding:7px 11px 7px 9px;
  border-radius:999px;
  border:1px solid rgba(245,241,232,.24);
  color:var(--paper);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;width:16px;height:10px;flex:0 0 auto}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--lime);
}
.nav-toggle__bars::before{top:1px}
.nav-toggle__bars::after{bottom:1px}

/* ---------- 7. 侧边轨道导航（移动端为抽屉） ---------- */
.rail-nav{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:272px;
  z-index:85;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:62px 14px 24px;
  background:var(--paper);
  border-right:1px solid var(--sand);
  box-shadow:24px 0 48px -34px rgba(12,24,38,.6);
  transform:translateX(-102%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.rail-nav[data-open="true"]{transform:translateX(0)}
.rail-nav__list{display:flex;flex-direction:column;gap:2px}
.rail-nav__item{display:block}
.rail-nav__link{
  position:relative;
  display:flex;
  flex-direction:row;
  align-items:center;
  justify-content:flex-start;
  gap:12px;
  padding:13px 14px;
  border-radius:0 18px 18px 0;
  color:var(--text);
  text-align:left;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.rail-nav__link:hover{background:rgba(79,184,201,.16);text-decoration:none}
.rail-nav__index{
  flex:0 0 auto;
  width:22px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  line-height:1;
  color:var(--rock);
}
.rail-nav__label{font-size:15px;font-weight:600;line-height:1.3}
.rail-nav__link[aria-current="page"]{background:var(--cyan-deep);color:var(--paper)}
.rail-nav__link[aria-current="page"] .rail-nav__index{color:rgba(245,241,232,.72)}
.rail-nav__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:4px;
  height:22px;
  transform:translateY(-50%);
  background:var(--lime);
  border-radius:0 3px 3px 0;
}
.rail-nav__foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:16px 6px 0;
  margin-top:20px;
  border-top:1px solid var(--sand);
}
.rail-nav__foot-label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  line-height:1.4;
  color:var(--rock);
}

/* 遮罩 */
.nav-scrim{display:none}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-left:var(--rail);
  margin-top:clamp(56px,9vw,112px);
  background:var(--paper-deep);
  border-top:1px solid var(--sand);
  padding:clamp(40px,5vw,60px) clamp(18px,3.4vw,52px) 26px;
}
.footer-inner{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:34px 22px;
  max-width:1320px;
  margin-inline:auto;
}
.footer-brand{grid-column:1 / -1}
.footer-brand__mark{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.footer-brand__glyph{
  width:26px;
  height:26px;
  display:grid;
  place-items:center;
  background:var(--ink);
  color:var(--lime);
  font-size:14px;
  font-weight:900;
  line-height:1;
  border-radius:9px 2px 9px 2px;
}
.footer-brand__name{font-size:17px;font-weight:700;letter-spacing:.05em;color:var(--ink)}
.footer-brand__tagline{font-size:13px;letter-spacing:.08em;color:var(--cyan-deep);margin-bottom:8px}
.footer-brand__note{font-size:13.5px;line-height:1.7;color:var(--rock);max-width:34ch}

.footer-block{min-width:0}
.footer-block__num{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  line-height:1;
  color:var(--rock);
  margin-bottom:8px;
}
.footer-block__title{
  font-size:14px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--ink);
  margin-bottom:12px;
}
.footer-list{display:flex;flex-direction:column;gap:8px}
.footer-list a{font-size:14.5px;color:var(--text)}
.footer-list a:hover{color:var(--cyan-deep);text-decoration:underline}

.footer-block--ink{
  background:var(--ink);
  color:var(--paper);
  border-radius:24px 0 24px 0;
  padding:22px 20px 24px;
}
.footer-block--ink .footer-block__num{color:rgba(245,241,232,.55)}
.footer-block--ink .footer-block__title{color:var(--paper)}
.footer-contact{display:flex;flex-direction:column;gap:9px}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:13.5px;
  line-height:1.65;
  color:rgba(245,241,232,.82);
  word-break:break-word;
}
.footer-contact__key{
  flex:0 0 34px;
  padding-top:2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--lime);
}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
  gap:8px 20px;
  max-width:1320px;
  margin:38px auto 0;
  padding-top:18px;
  border-top:1px solid var(--sand);
  font-size:13px;
  color:var(--rock);
}
.footer-base__legal,
.footer-base__copy{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;max-width:none}

/* ---------- 9. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--lime);color:var(--ink)}
.btn--primary:hover{background:#d8fa63;text-decoration:none;color:var(--ink)}
.btn--ghost{background:transparent;color:var(--paper);border:1px solid rgba(245,241,232,.34)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);text-decoration:none}
.btn--block{width:100%}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center}
.breadcrumb li{display:flex;align-items:center;font-size:12px;letter-spacing:.06em;color:var(--rock)}
.breadcrumb li + li::before{content:"／";margin:0 10px;color:var(--sand)}
.breadcrumb a{color:var(--rock)}
.breadcrumb a:hover{color:var(--cyan-deep);text-decoration:none}

/* ---------- 11. 档案卡与标签 ---------- */
.card{
  position:relative;
  background:var(--paper-deep);
  border-radius:var(--radius-card) 0 var(--radius-card) 0;
  padding:22px 22px 24px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-4px) rotate(-.4deg);box-shadow:var(--shadow-card)}
.card__title{font-size:1.15rem;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.4}
.card__body{font-size:15px;line-height:1.72;color:var(--text);max-width:52ch}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:999px;
  background:var(--lime-soft);
  color:var(--ink);
  font-size:12px;
  font-weight:700;
  line-height:1.6;
  letter-spacing:.04em;
}
.tag--sunset{background:var(--sunset);color:#FFFFFF}

/* ---------- 12. 分段切换 ---------- */
.tabs{margin-block:clamp(24px,4vw,44px)}
.tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:2px;
  border-bottom:1px solid var(--sand);
}
.tabs__tab{
  position:relative;
  padding:11px 16px;
  font-size:14px;
  font-weight:600;
  color:var(--rock);
  transition:color .2s var(--ease);
}
.tabs__tab:hover{color:var(--ink)}
.tabs__tab[aria-selected="true"]{color:var(--ink)}
.tabs__tab[aria-selected="true"]::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:-1px;
  height:3px;
  border-radius:3px 3px 0 0;
  background:var(--lime);
}
.tabs__panel{padding-top:22px;animation:tabs-in .22s var(--ease) both}
@keyframes tabs-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- 13. 数据条与数据流 ---------- */
.bar{
  display:block;
  width:100%;
  height:10px;
  border-radius:999px;
  background:var(--sand);
  overflow:hidden;
}
.bar__fill{
  display:block;
  width:0;
  height:100%;
  border-radius:inherit;
  background:var(--cyan);
  transition:width .48s var(--ease);
}
.bar__fill--lime{background:var(--lime)}
.bar__fill--sunset{background:var(--sunset)}
.bar__fill--purple{background:var(--purple)}

.data-row{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:14px;
  padding:12px 14px;
  border-bottom:1px solid var(--sand);
  transition:background-color .18s var(--ease);
}
.data-row:hover,
.data-row.is-pinned{background:var(--lime-soft)}
.data-row__rank{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  color:var(--cyan-deep);
  min-width:2ch;
}
.data-row__name{font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.data-row__value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:16px;
  color:var(--ink);
}
.data-row__value--up{color:var(--cyan-deep)}
.data-row__value--down{color:var(--sunset)}

/* ---------- 14. 筛选 chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:7px 15px;
  border-radius:999px;
  border:1px solid var(--sand);
  background:var(--paper);
  color:var(--text);
  font-size:13px;
  line-height:1.4;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.chip:hover{border-color:var(--cyan)}
.chip[aria-pressed="true"]{
  background:var(--lime-soft);
  border-color:var(--lime);
  color:var(--ink);
  font-weight:700;
}

/* ---------- 15. 可展开细节 ---------- */
details{border-bottom:1px solid var(--sand)}
summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:15px 0 15px 30px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  transition:color .18s var(--ease);
}
summary::-webkit-details-marker{display:none}
summary::before{
  content:"+";
  position:absolute;
  left:0;
  top:15px;
  width:18px;
  height:18px;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:15px;
  line-height:1;
  color:var(--cyan-deep);
  transition:transform .18s var(--ease);
}
details[open] summary::before{content:"–"}
summary:hover{color:var(--cyan-deep)}
.details__body{padding:0 0 18px 30px;font-size:15px;line-height:1.75;color:var(--text);max-width:68ch}

/* ---------- 16. 图片容器基座 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-card) 0 var(--radius-card) 0;
  background:linear-gradient(158deg,var(--cyan-deep) 0%,var(--ink) 62%);
  aspect-ratio:16 / 10;
}
.media img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21 / 9}
.media--tall{aspect-ratio:3 / 4}
.media--diagonal{
  clip-path:polygon(0 0,100% 0,100% 86%,0 100%);
  border-radius:0;
}
.media__scrim{
  position:absolute;
  inset:auto 0 0 0;
  height:54%;
  background:linear-gradient(transparent,rgba(12,24,38,.74));
}
.media__label{
  position:absolute;
  left:14px;
  bottom:12px;
  z-index:2;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--lime);
}

/* ---------- 17. 移动端底部快捷条 ---------- */
.quickbar{display:none}

/* ---------- 18. 显现动画 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-inview{opacity:1;transform:none}

/* ---------- 19. 平板 / 桌面 ---------- */
@media (min-width:900px){
  .brand-band{gap:16px;padding:0 18px 0 14px}
  .brand-band__name{font-size:16px}

  .rail-nav{
    top:var(--band);
    width:var(--rail);
    padding:16px 8px 18px;
    background:var(--paper-deep);
    border-right:1px solid var(--sand);
    box-shadow:none;
    transform:none;
    transition:none;
    z-index:85;
  }
  .rail-nav[data-open="true"]{transform:none}
  .rail-nav__list{gap:4px}
  .rail-nav__link{
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:4px;
    padding:11px 4px;
    border-radius:0 16px 16px 0;
    text-align:center;
  }
  .rail-nav__index{width:auto;font-size:10px;letter-spacing:.14em}
  .rail-nav__label{font-size:11.5px;font-weight:500;line-height:1.3;letter-spacing:.02em}
  .rail-nav__link[aria-current="page"]::before{height:24px}
  .rail-nav__foot{flex-direction:column;align-items:center;gap:6px;padding:14px 2px 0}
  .rail-nav__foot-label{font-size:9.5px;text-align:center;line-height:1.5}
}

@media (min-width:1040px){
  .footer-inner{
    grid-template-columns:minmax(0,1.1fr) repeat(3,minmax(0,.82fr)) minmax(0,1.25fr);
    gap:36px 28px;
  }
  .footer-brand{grid-column:auto}
}

/* ---------- 20. 移动端 ---------- */
@media (max-width:899px){
  :root{--rail:0px}

  .nav-toggle{display:inline-flex}
  .brand-band__tagline{display:none}
  .brand-band__link--quiet{display:none}

  .nav-scrim{
    display:block;
    position:fixed;
    inset:0;
    z-index:84;
    background:rgba(12,24,38,.52);
    opacity:0;
    pointer-events:none;
    transition:opacity .16s linear;
  }
  .nav-scrim[data-visible="true"]{opacity:1;pointer-events:auto}

  body.nav-open{overflow:hidden}

  .page-shell{padding-top:calc(var(--band) + 2px);padding-bottom:52px}

  .quickbar{
    display:flex;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    height:43px;
    z-index:75;
    align-items:stretch;
    background:rgba(245,241,232,.94);
    border-top:1px solid var(--sand);
  }
  .quickbar a{
    flex:1 1 0;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:13px;
    font-weight:600;
    color:var(--ink);
    border-right:1px solid var(--sand);
  }
  .quickbar a:last-child{border-right:0}
  .quickbar a:hover{background:var(--lime-soft);text-decoration:none}
}

@media (max-width:520px){
  body{font-size:16px}
  .brand-band{gap:9px;padding:0 10px}
  .brand-band__link{display:none}
  .brand-band__cta{padding:8px 13px;font-size:13px}
  .footer-inner{grid-template-columns:minmax(0,1fr)}
  .footer-brand{grid-column:1 / -1}
}

/* ---------- 21. 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .bar__fill{transition:none}
  .card:hover{transform:none}
  .tabs__panel{animation:none}
}