/* ==========================================================================
   中欧体育CN 品牌专区 — 共享样式 /assets/site.css
   V3.1 · 夜间赛场指挥中心
   1 Tokens · 2 Reset · 3 排版 · 4 容器与网格 · 5 按钮与标签
   6 头部命令栏 · 7 页脚 · 8 通用组件 · 9 动效 · 10 响应式
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --ink-0:#050914;
  --ink-1:#0B1228;
  --ink-2:#14204A;
  --orange:#FF6B2C;
  --orange-dim:#C94A16;
  --mint:#37E6B0;
  --indigo:#5B4BC4;
  --wine:#8E2340;
  --fog:#E9EDF6;
  --mute:#9AA7C7;
  --line:#2A3766;
  --white:#FFFFFF;

  --font-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --cmdbar-h:66px;
  --line-w:2px;
  --gutter:clamp(16px,2.4vw,32px);
  --shadow-hard:8px 8px 0 rgba(0,0,0,.5);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--ink-0);
  color:var(--fog);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,picture,video{display:block;max-width:100%}
img{height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0}
a{color:inherit}
ul,ol{list-style:none;padding:0}
p{text-wrap:pretty}

:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
}

#main-content{display:block;scroll-margin-top:calc(var(--cmdbar-h) + 16px)}

.skip-link{
  position:absolute;
  inset-block-start:0;
  inset-inline-start:0;
  z-index:999;
  transform:translateY(-140%);
  background:var(--orange);
  color:#0A0F1F;
  font-weight:700;
  font-size:13px;
  letter-spacing:.08em;
  padding:10px 18px;
  border:2px solid #0A0F1F;
  text-decoration:none;
  transition:transform .16s ease;
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 3. 排版 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(56px,10vw,148px);
  line-height:.92;
  letter-spacing:-.01em;
  color:var(--white);
}
.display strong{font-weight:700}

.section-title{
  font-family:var(--font-display);
  font-weight:400;
  font-size:clamp(28px,4vw,46px);
  line-height:1.14;
  letter-spacing:.01em;
  color:var(--white);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  line-height:1.2;
  color:var(--mint);
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--orange);
  flex:0 0 auto;
}

.prose{max-width:40em}
.prose p + p{margin-top:1.15em}
.prose a{
  color:var(--mint);
  text-decoration:none;
  border-bottom:1px solid rgba(55,230,176,.45);
}
.prose a:hover{border-bottom-color:var(--mint)}

/* ---------- 4. 容器与网格 ---------- */
.wrap{
  width:min(calc(100% - var(--gutter) * 2),1360px);
  margin-inline:auto;
}

.section{padding-block:clamp(48px,7vw,104px)}
.section--panel{
  background:var(--ink-1);
  border-block:var(--line-w) solid var(--line);
}

.grid{display:grid;gap:var(--gutter)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

@media (min-width:840px){
  .grid--7-5{grid-template-columns:7fr 5fr}
  .grid--8-4{grid-template-columns:8fr 4fr}
  .grid--3-6-3{grid-template-columns:3fr 6fr 3fr}
}

/* ---------- 5. 按钮与标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-body);
  font-size:13px;
  font-weight:500;
  letter-spacing:.06em;
  line-height:1.2;
  padding:12px 20px;
  border:var(--line-w) solid transparent;
  text-decoration:none;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,border-color .16s ease,color .16s ease;
}
.btn--sm{padding:8px 14px;font-size:12px}
.btn--orange{
  background:var(--orange);
  border-color:var(--orange);
  color:#0A0F1F;
  box-shadow:4px 4px 0 rgba(255,107,44,.26);
}
.btn--orange:hover{
  background:var(--orange-dim);
  border-color:var(--orange-dim);
  transform:translate(-2px,-2px);
  box-shadow:6px 6px 0 rgba(255,107,44,.3);
}
.btn--mint{
  background:var(--mint);
  border-color:var(--mint);
  color:#04120D;
}
.btn--mint:hover{background:#2BCE9C;border-color:#2BCE9C;transform:translateY(-2px)}
.btn--ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--fog);
}
.btn--ghost:hover{border-color:var(--orange);color:var(--white);transform:translateY(-2px)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.2;
  padding:4px 8px;
  border:var(--line-w) solid var(--line);
  color:var(--fog);
}
.tag--mint{color:var(--mint);border-color:rgba(55,230,176,.5)}
.tag--orange{color:var(--orange);border-color:rgba(255,107,44,.55)}
.tag--indigo{background:var(--indigo);border-color:var(--indigo);color:var(--white)}
.tag--wine{background:var(--wine);border-color:var(--wine);color:var(--fog)}

/* ---------- 6. 头部命令栏 ---------- */
.cmd-bar{
  position:sticky;
  inset-block-start:0;
  z-index:60;
  background:var(--ink-0);
  border-bottom:var(--line-w) solid var(--line);
}
.cmd-bar__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,24px);
  height:var(--cmdbar-h);
  width:min(calc(100% - var(--gutter) * 2),1360px);
  margin-inline:auto;
}
.cmd-bar__status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  line-height:1;
  color:var(--mute);
  white-space:nowrap;
}
.cmd-bar__dot{
  width:8px;
  height:8px;
  flex:0 0 auto;
  background:var(--mint);
  animation:breathe 2.4s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.35;transform:scale(.8)}
}
.cmd-bar__progress{
  position:absolute;
  inset-inline:0;
  inset-block-end:0;
  height:var(--line-w);
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:0 50%;
  will-change:transform;
}
.cmd-bar__scrim{
  position:fixed;
  inset:0;
  z-index:65;
  background:rgba(5,9,20,.74);
}
.cmd-bar__scrim[hidden]{display:none}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  text-decoration:none;
  line-height:1;
  padding-block:6px;
}
.brand__mark{
  font-family:var(--font-body);
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--white);
}
.brand__slash{color:var(--line);font-family:var(--font-mono);font-size:14px}
.brand__sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--mute);
  white-space:nowrap;
}
.brand__ver{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:var(--ink-0);
  background:var(--orange);
  padding:3px 5px;
  line-height:1;
}
.brand:hover .brand__sub{color:var(--mint)}

/* 移动菜单按钮（桌面隐藏） */
.nav-toggle{display:none}

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.2vw,16px);
  margin-inline-start:auto;
  visibility:visible;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,.6vw,8px);
}
.site-nav__item{flex:0 0 auto}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:5px;
  padding:8px 8px;
  font-size:12.5px;
  line-height:1;
  letter-spacing:.02em;
  color:var(--fog);
  text-decoration:none;
  border-bottom:var(--line-w) solid transparent;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.site-nav__link:hover{
  color:var(--white);
  border-bottom-color:var(--orange-dim);
  transform:translateY(-2px);
}
.site-nav__link[aria-current="page"]{
  color:var(--white);
  border-bottom-color:var(--orange);
}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--orange)}
.site-nav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  color:var(--mute);
  line-height:1;
}
.site-nav__txt{white-space:nowrap}
.site-nav__utility{
  display:flex;
  align-items:center;
  gap:8px;
  margin-inline-start:10px;
  padding-inline-start:12px;
  border-inline-start:var(--line-w) solid var(--line);
}

/* ---------- 7. 页脚 ---------- */
.site-foot{
  background:var(--ink-0);
  border-top:var(--line-w) solid var(--line);
  padding-block:clamp(40px,6vw,72px) 24px;
}
.site-foot__top{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,4vw,48px);
}
.site-foot__brand{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.site-foot__mark{
  font-family:var(--font-display);
  font-size:26px;
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:var(--white);
}
.site-foot__tag{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  line-height:1.2;
  color:var(--mint);
}
.site-foot__cta{margin-top:6px}
.site-foot__h{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  line-height:1.2;
  color:var(--mute);
  margin-bottom:14px;
}
.site-foot__list{display:grid;gap:10px}
.site-foot__list a{
  font-size:14px;
  color:var(--fog);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.site-foot__list a:hover{color:var(--white);border-bottom-color:var(--orange)}
.site-foot__contact{
  margin-top:clamp(32px,5vw,56px);
  border-top:var(--line-w) solid var(--line);
  padding-top:24px;
}
.site-foot__contactlist{
  display:grid;
  grid-template-columns:1fr;
  gap:14px clamp(16px,3vw,40px);
}
.site-foot__contactitem dt{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.12em;
  line-height:1.2;
  color:var(--mute);
}
.site-foot__contactitem dd{
  margin:4px 0 0;
  font-size:13px;
  line-height:1.6;
  color:var(--fog);
  word-break:break-word;
}
.site-foot__note{
  margin-top:16px;
  font-size:12px;
  line-height:1.6;
  color:var(--mute);
}
.site-foot__legal{
  margin-top:28px;
  border-top:var(--line-w) solid var(--line);
  padding-top:18px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
}
.site-foot__legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
}
.site-foot__legal-links a{
  font-size:12px;
  color:var(--mute);
  text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color .16s ease,border-color .16s ease;
}
.site-foot__legal-links a:hover{color:var(--mint);border-bottom-color:var(--mint)}
.site-foot__copy{
  font-size:12px;
  line-height:1.6;
  color:var(--mute);
}
.site-foot__icp{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  white-space:nowrap;
}

/* ---------- 8. 通用组件 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.4;
  color:var(--mute);
  padding-block:18px;
}
.breadcrumb a{
  color:var(--mute);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.breadcrumb a:hover{color:var(--mint);border-bottom-color:var(--mint)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb__current{color:var(--fog)}

.media{
  position:relative;
  overflow:hidden;
  display:block;
  aspect-ratio:16 / 9;
  background:var(--ink-2);
  border:var(--line-w) solid var(--line);
  box-shadow:var(--shadow-hard);
}
.media > img,
.media > picture > img,
.media > video{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--square{aspect-ratio:1 / 1}
.media--tall{aspect-ratio:3 / 4}
.media--wide{aspect-ratio:21 / 9}
.media__cap{
  position:absolute;
  inset-inline-start:0;
  inset-block-end:0;
  padding:6px 10px;
  background:var(--ink-0);
  border-top:var(--line-w) solid var(--line);
  border-inline-end:var(--line-w) solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.3;
  color:var(--mute);
}
.media-grid{display:grid;gap:clamp(12px,2vw,24px)}

/* ---------- 9. 动效 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease,transform .5s ease;
}
.js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1200px){
  .site-nav__idx{display:none}
}
@media (max-width:1080px){
  .cmd-bar__status{display:none}
  .site-foot__top{grid-template-columns:1fr 1fr}
  .site-foot__brand{grid-column:1 / -1}
}
@media (min-width:640px){
  .site-foot__contactlist{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .site-foot__top{grid-template-columns:1.5fr repeat(3,minmax(0,1fr))}
  .site-foot__brand{grid-column:auto}
  .site-foot__contactlist{grid-template-columns:repeat(4,minmax(0,1fr))}
}

/* ---- 移动端抽屉 ---- */
@media (max-width:900px){
  :root{--cmdbar-h:60px}

  .nav-toggle{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-inline-start:auto;
    padding:8px 12px;
    border:var(--line-w) solid var(--line);
    color:var(--fog);
    font-size:12px;
    letter-spacing:.12em;
    line-height:1;
    cursor:pointer;
    transition:border-color .16s ease;
  }
  .nav-toggle:hover{border-color:var(--orange)}
  .nav-toggle__bars{
    display:inline-flex;
    flex-direction:column;
    gap:3px;
    width:16px;
  }
  .nav-toggle__bars i{
    display:block;
    height:2px;
    background:var(--orange);
    transition:transform .2s ease,opacity .2s ease;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(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(-5px) rotate(-45deg)}
  .nav-toggle__label{font-family:var(--font-mono)}

  .site-nav{
    position:fixed;
    inset-block-start:var(--cmdbar-h);
    inset-block-end:0;
    inset-inline-start:0;
    z-index:70;
    width:min(86vw,340px);
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-inline-start:0;
    padding:24px 20px 32px;
    background:var(--ink-1);
    border-inline-end:var(--line-w) solid var(--line);
    overflow-y:auto;
    visibility:hidden;
    transform:translateX(-102%);
    transition:transform .28s ease,visibility .28s ease;
  }
  .site-nav[data-open]{
    visibility:visible;
    transform:translateX(0);
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .site-nav__item{width:100%}
  .site-nav__link{
    display:flex;
    align-items:center;
    gap:10px;
    width:100%;
    padding:15px 4px;
    font-size:15px;
    border-bottom:var(--line-w) solid var(--line);
  }
  .site-nav__link:hover{transform:none;border-bottom-color:var(--orange)}
  .site-nav__link[aria-current="page"]{border-bottom-color:var(--orange)}
  .site-nav__idx{display:inline-block;font-size:10px;color:var(--mute)}
  .site-nav__link[aria-current="page"] .site-nav__idx{color:var(--orange)}
  .site-nav__utility{
    flex-wrap:wrap;
    margin-inline-start:0;
    margin-top:22px;
    padding-inline-start:0;
    padding-top:22px;
    border-inline-start:0;
    border-top:var(--line-w) solid var(--line);
  }
  .site-nav__utility .btn{flex:1 1 auto}
}

@media (max-width:520px){
  .brand__sub{display:none}
  .brand__slash{display:none}
  .site-foot__top{grid-template-columns:1fr}
  .site-foot__legal{flex-direction:column;align-items:flex-start}
}

/* ---- 降低动效偏好 ---- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .cmd-bar__dot{animation:none}
  .js [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .site-nav{transition:none}
  .site-nav__link:hover,
  .btn:hover,
  .btn--orange:hover,
  .btn--mint:hover,
  .btn--ghost:hover{transform:none}
}