/* =========================================================
   米尔体育赛事 · /assets/site.css
   夜场控制室 × 目录索引 · 共享外壳与基础组件
   ========================================================= */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,dl,dd,blockquote,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
hr{border:0}

/* ---------- 2. tokens ---------- */
:root{
  --night:#070C10;
  --field:#0E171D;
  --grid:#1E3A3F;
  --grass:#21C97A;
  --cyan:#35F0E0;
  --yi:#D94B3D;
  --amber:#F2B24C;
  --mist:#E8F1EF;
  --mute:#8FA6A6;
  --g1:#0B2A2E;
  --g2:#123E38;

  --hair:rgba(30,58,63,.95);
  --hair-soft:rgba(143,166,166,.16);
  --grass-08:rgba(33,201,122,.08);
  --grass-16:rgba(33,201,122,.16);
  --cyan-12:rgba(53,240,224,.12);

  --wrap:1240px;
  --pad:clamp(16px,4.4vw,44px);
  --r:2px;

  --font-head:"HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. base ---------- */
html{font-size:16px}
body{
  min-height:100vh;
  overflow-x:hidden;
  background:var(--night);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:.9375rem;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body::-webkit-scrollbar{width:10px}
body::-webkit-scrollbar-track{background:var(--night)}
body::-webkit-scrollbar-thumb{background:var(--grid);border:2px solid var(--night)}

h1,h2,h3,h4,h5{
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:var(--mist);
}
h1{font-size:clamp(2rem,5.4vw,3.5rem)}
h2{font-size:clamp(1.5rem,3.4vw,2.25rem)}
h3{font-size:clamp(1.125rem,2vw,1.375rem)}
h4{font-size:1rem}
p{max-width:70ch}
strong{color:#fff;font-weight:700}
small{font-size:.8125rem}

::selection{background:var(--grass);color:#04120B}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
#main-content{display:block;scroll-margin-top:104px}
#main-content:focus{outline:none}

/* ---------- 4. utilities ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--pad);
}
.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;
}
.rule{height:1px;background:var(--hair);border:0;width:100%}
.rule--dashed{background:none;border-top:1px dashed var(--hair-soft)}

.idx{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mute);
}
.idx--big{
  font-family:var(--font-mono);
  font-size:clamp(2rem,4.6vw,3.25rem);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:transparent;
  -webkit-text-stroke:1px var(--grid);
  text-transform:none;
}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--cyan);
}
.num--amber{color:var(--amber)}

/* ---------- 5. skip link ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:200;
  padding:10px 18px;
  background:var(--grass);
  color:#04120B;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  border:1px solid var(--cyan);
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 6. buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 20px;
  border:1px solid var(--grid);
  border-radius:var(--r);
  background:transparent;
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  line-height:1.2;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);background:var(--cyan-12)}
.btn--primary{
  background:var(--grass);
  border-color:var(--grass);
  color:#04120B;
  font-weight:700;
}
.btn--primary:hover{background:var(--cyan);border-color:var(--cyan);color:#04120B}
.btn--ghost{border-color:var(--hair);color:var(--mute)}
.btn--ghost:hover{color:var(--mist);border-color:var(--mute);background:transparent}

/* ---------- 7. tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--hair);
  border-radius:var(--r);
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mute);
  line-height:1.6;
}
.tag--grass{color:var(--grass);border-color:rgba(33,201,122,.42);background:var(--grass-08)}
.tag--cyan{color:var(--cyan);border-color:rgba(53,240,224,.38);background:rgba(53,240,224,.07)}
.tag--amber{color:var(--amber);border-color:rgba(242,178,76,.4);background:rgba(242,178,76,.07)}
.tag--yi{color:var(--yi);border-color:rgba(217,75,61,.45);background:rgba(217,75,61,.08)}

/* ---------- 8. cards ---------- */
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:clamp(18px,2.4vw,26px);
  background:var(--field);
  border:1px solid var(--hair);
  border-radius:var(--r);
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.card:hover{border-color:rgba(53,240,224,.42)}
.card__title{
  font-family:var(--font-head);
  font-weight:700;
  font-size:1.0625rem;
  line-height:1.35;
  letter-spacing:-.01em;
  color:var(--mist);
}
.card__text{font-size:.875rem;line-height:1.8;color:var(--mute)}

/* ---------- 9. grid ---------- */
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(216px,1fr))}
.grid--aside{display:grid;gap:clamp(18px,3vw,40px);grid-template-columns:1fr}
@media (min-width:960px){
  .grid--aside{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start}
}

/* ---------- 10. sections ---------- */
.section{padding:clamp(36px,6vw,76px) 0}
.section--tight{padding:clamp(22px,3.6vw,42px) 0}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:10px 24px;
  padding-bottom:14px;
  margin-bottom:clamp(18px,3vw,34px);
  border-bottom:1px solid var(--hair);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--grass);
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--grass);
  flex:0 0 22px;
}

/* ---------- 11. breadcrumbs ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:16px 0;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mute);
}
.crumbs__link{color:var(--mute);transition:color .2s var(--ease)}
.crumbs__link:hover{color:var(--cyan)}
.crumbs__sep{color:var(--grid)}
.crumbs__current{color:var(--mist)}

/* ---------- 12. media ---------- */
.media{
  position:relative;
  display:block;
  background:linear-gradient(150deg,var(--g1),var(--g2));
  border:1px solid var(--hair);
  border-radius:var(--r);
  overflow:hidden;
}
.media__frame{
  position:relative;
  aspect-ratio:16 / 9;
  isolation:isolate;
  overflow:hidden;
}
.media__frame--wide{aspect-ratio:21 / 9}
.media__frame--tall{aspect-ratio:3 / 4}
.media__frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(180deg,rgba(7,12,16,.16),rgba(7,12,16,.72)),
    repeating-linear-gradient(90deg,rgba(53,240,224,.10) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(0deg,rgba(53,240,224,.07) 0 1px,transparent 1px 56px);
  background-size:auto,56px 56px,56px 56px;
}
.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.88) contrast(1.06) brightness(.92);
}
.media__ph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:rgba(143,166,166,.62);
  text-align:center;
  padding:12px;
}
.media__caption{
  padding:9px 2px 0;
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.13em;
  text-transform:uppercase;
  color:var(--mute);
}

/* =========================================================
   13. header
   ========================================================= */
.site-head{
  position:relative;
  z-index:80;
  background:var(--night);
}
.head-rail{
  background:var(--field);
  border-bottom:1px solid var(--hair);
}
.head-rail__inner{
  display:flex;
  align-items:center;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--pad);
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--mute);
}
.rail-cell{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-left:1px solid var(--hair);
  white-space:nowrap;
  line-height:1.4;
}
.rail-cell:first-child{padding-left:0;border-left:0}
.rail-cell--brand{color:var(--mist);letter-spacing:.2em}
.rail-cell--cert{color:var(--cyan)}
.rail-cell--note{margin-left:auto;color:var(--mute)}
.rail-dot{
  width:5px;height:5px;
  flex:0 0 5px;
  background:var(--grass);
  box-shadow:0 0 8px var(--grass);
  animation:railPulse 2.6s var(--ease) infinite;
}
@keyframes railPulse{
  0%,100%{opacity:1}
  50%{opacity:.35}
}

.head-main{
  position:relative;
  background:linear-gradient(180deg,#0A1418 0%,var(--night) 100%);
}
.head-main::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,var(--grass),rgba(53,240,224,.3) 24%,var(--grid) 58%,transparent);
}
.head-main__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0 28px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:14px var(--pad);
}
.head-id{
  display:flex;
  align-items:center;
  gap:18px;
  min-width:0;
  margin-right:auto;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:3px 0;
  flex:0 0 auto;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  flex:0 0 40px;
  background:linear-gradient(145deg,rgba(33,201,122,.95),rgba(53,240,224,.38));
  color:#04120B;
  font-family:var(--font-head);
  font-size:1.125rem;
  font-weight:800;
  line-height:1;
  letter-spacing:0;
  box-shadow:inset 0 0 0 1px rgba(232,241,239,.28);
  transition:box-shadow .22s var(--ease),background .22s var(--ease);
}
.brand:hover .brand__mark{box-shadow:inset 0 0 0 1px var(--cyan),0 0 14px rgba(53,240,224,.4)}
.brand__text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand__name{
  font-family:var(--font-head);
  font-size:1.0625rem;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--mist);
}
.brand__meta{
  margin-top:5px;
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.17em;
  text-transform:uppercase;
  color:var(--mute);
}
.head-brief{
  max-width:none;
  padding-left:18px;
  border-left:1px solid var(--hair);
  font-size:.8125rem;
  line-height:1.6;
  letter-spacing:.03em;
  color:var(--mute);
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding:9px 13px;
  border:1px solid var(--hair);
  border-radius:var(--r);
  background:var(--field);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  line-height:1;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--grass);color:var(--grass)}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;height:2px;
  background:currentColor;
  box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{
  background:var(--grass);
  box-shadow:none;
  transform:rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{
  content:"";
  position:absolute;
  inset:0;
  background:var(--grass);
  transform:rotate(90deg);
}
.nav-toggle__label{line-height:1}

.site-nav{
  display:none;
  order:3;
  flex:0 0 100%;
  margin-top:12px;
  padding-top:4px;
  border-top:1px solid var(--hair);
}
.site-nav[data-open]{
  display:block;
  animation:navDrop .22s var(--ease) both;
}
@keyframes navDrop{
  from{opacity:0;transform:translateY(-6px)}
  to{opacity:1;transform:none}
}
.site-nav__list{display:flex;flex-direction:column}
.site-nav__item{border-bottom:1px solid var(--hair-soft)}
.site-nav__item:last-child{border-bottom:0}
.site-nav__link{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:12px 10px;
  border-left:2px solid transparent;
  font-family:var(--font-head);
  font-size:.9375rem;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--mist);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.site-nav__num{
  font-family:var(--font-mono);
  font-size:.6875rem;
  font-weight:400;
  letter-spacing:.12em;
  color:var(--mute);
  transition:color .2s var(--ease);
}
.site-nav__label{line-height:1.3}
.site-nav__link:hover{
  background:var(--grass-08);
  border-left-color:var(--grass);
  color:var(--cyan);
}
.site-nav__link:hover .site-nav__num{color:var(--grass)}
.site-nav__link[aria-current="page"]{
  border-left-color:var(--grass);
  background:linear-gradient(90deg,rgba(33,201,122,.16),transparent 72%);
  color:#fff;
}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--grass)}
.site-nav__link[aria-current="page"] .site-nav__label{color:var(--cyan)}
.site-nav__note{
  max-width:none;
  padding:10px 10px 4px;
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mute);
}

@media (max-width:1079px){
  .head-brief{display:none}
}
@media (max-width:719px){
  .rail-cell--note{display:none}
  .rail-cell{padding:7px 12px;font-size:.625rem;letter-spacing:.1em}
  .head-main__inner{padding:12px var(--pad)}
  .brand__mark{width:36px;height:36px;flex-basis:36px;font-size:1rem}
  .brand__name{font-size:1rem}
  .brand__meta{font-size:.5625rem}
}
@media (min-width:900px){
  .site-head{position:sticky;top:0;z-index:80}
  .nav-toggle{display:none}
  .site-nav{
    display:block;
    order:0;
    flex:0 0 auto;
    margin-top:0;
    padding-top:0;
    border-top:0;
  }
  .site-nav__list{flex-direction:row;align-items:center;justify-content:flex-end;gap:0}
  .site-nav__item{border-bottom:0;border-left:1px solid var(--hair)}
  .site-nav__item:first-child{border-left:0}
  .site-nav__link{
    padding:9px 15px;
    border-left:0;
    border-bottom:2px solid transparent;
    font-size:.875rem;
  }
  .site-nav__link:hover{
    border-left:0;
    border-bottom-color:var(--grass);
    background:transparent;
  }
  .site-nav__link[aria-current="page"]{
    border-left:0;
    border-bottom-color:var(--cyan);
    background:transparent;
  }
  .site-nav__note{display:none}
}
@media (min-width:1200px){
  .site-nav__link{padding:9px 17px;font-size:.9rem}
}

/* =========================================================
   14. footer
   ========================================================= */
.site-foot{
  margin-top:clamp(48px,8vw,96px);
  background:var(--field);
  border-top:1px solid var(--hair);
}
.foot-tape{
  height:2px;
  background:linear-gradient(90deg,
    var(--grass) 0 34%,
    var(--grid) 34% 58%,
    var(--cyan) 58% 76%,
    var(--amber) 76% 90%,
    var(--yi) 90% 100%);
}
.foot-inner{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(26px,4.6vw,52px) var(--pad) 0;
}
.foot-top{
  display:grid;
  grid-template-columns:1fr;
  gap:26px 44px;
  padding-bottom:26px;
  border-bottom:1px solid var(--hair);
}
@media (min-width:820px){
  .foot-top{grid-template-columns:minmax(230px,300px) minmax(0,1fr);align-items:start}
}
.foot-brand{display:flex;flex-direction:column;gap:10px}
.foot-brand__name{
  font-family:var(--font-head);
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--mist);
}
.foot-brand__meta{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--mute);
}
.foot-note{
  max-width:34ch;
  padding-left:12px;
  border-left:2px solid var(--grid);
  font-size:.8125rem;
  line-height:1.75;
  color:var(--mute);
}
.foot-links{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 24px;
}
@media (min-width:560px){
  .foot-links{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.foot-links__item{border-bottom:1px solid var(--hair-soft)}
.foot-links__link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:11px 0;
  color:var(--mist);
  transition:color .2s var(--ease);
}
.foot-links__link:hover{color:var(--cyan)}
.foot-links__num{
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.12em;
  color:var(--mute);
  transition:color .2s var(--ease);
}
.foot-links__link:hover .foot-links__num{color:var(--grass)}
.foot-links__label{font-size:.875rem;line-height:1.5}

.foot-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  padding:6px 0 18px;
  border-bottom:1px solid var(--hair);
}
@media (min-width:760px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}
}
.foot-cell{
  display:grid;
  grid-template-columns:74px minmax(0,1fr);
  gap:12px;
  align-items:baseline;
  padding:11px 0;
  border-bottom:1px dashed var(--hair-soft);
}
.foot-cell:last-child{border-bottom:0}
.foot-cell__key{
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mute);
}
.foot-cell__val{
  font-size:.875rem;
  line-height:1.7;
  color:var(--mist);
  word-break:break-word;
}
.foot-cell__val--mono{
  font-family:var(--font-mono);
  font-size:.8125rem;
  letter-spacing:.04em;
  color:var(--cyan);
}
.foot-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  padding:16px 0 26px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--mute);
}
.foot-legal__icp{color:var(--mute)}
.foot-legal__copy{color:var(--mute)}
.foot-legal__list{
  display:flex;
  flex-wrap:wrap;
  gap:6px 18px;
  margin-left:auto;
}
.foot-legal__link{
  color:var(--mute);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-legal__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* =========================================================
   15. motion · reveal · scroll meter
   ========================================================= */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  transition-delay:calc(var(--i,0) * 60ms);
  will-change:opacity,transform;
}
.js [data-reveal].is-in{opacity:1;transform:none}

.scroll-meter{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:150;
  background:rgba(30,58,63,.55);
  pointer-events:none;
}
.scroll-meter__fill{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--grass),var(--cyan));
  box-shadow:0 0 10px rgba(53,240,224,.55);
  transition:width .12s linear;
}

/* ---------- 16. reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  .js [data-reveal]{opacity:1!important;transform:none!important}
  .site-nav[data-open]{animation:none}
  .scroll-meter__fill{transition:none}
}