/* ============================================================
   米尔体育CN · 共享样式表 /assets/site.css
   战术板线条 + 移动端数据流：岩灰打底，青绿只落在数字，暖橙只落在倒计时
   ============================================================ */

/* ---------- 01 Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:2px}
::selection{background:var(--neon);color:var(--graphite)}

/* ---------- 02 变量 ---------- */
:root{
  --rock:#1C2227;          /* 贺兰岩灰 */
  --lake:#0E4A63;          /* 沙湖深蓝 */
  --rock-mid:#2E363C;      /* 中岩灰 */
  --cream:#F2F0EA;         /* 米白 */
  --graphite:#12161A;      /* 石墨黑 */
  --neon:#2CE8B4;          /* 荧光青绿（数据） */
  --amber:#FF7A3C;         /* 暖橙（倒计时） */
  --lake-light:#6FB7CE;    /* 沙湖浅蓝 */
  --gray:#8C959B;          /* 中性灰 */
  --moss:#3E5C4B;          /* 苔绿 */
  --line:rgba(242,240,234,.14);
  --line-strong:rgba(242,240,234,.28);
  --line-ink:rgba(18,22,26,.14);
  --header-h:76px;
  --wrap:1200px;
  --wrap-wide:1440px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-num:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-soft:0 20px 44px -30px rgba(0,0,0,.9);
}
@media (max-width:899px){:root{--header-h:64px}}

/* ---------- 03 中文排版与页面底色 ---------- */
body{
  min-height:100vh;
  background:var(--rock);
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.16;color:var(--cream)}
h1{font-size:clamp(34px,6.4vw,84px)}
h2{font-size:clamp(25px,3.6vw,44px)}
h3{font-size:clamp(19px,2.2vw,26px)}
p{max-width:74ch}
strong{font-weight:800;color:var(--cream)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700}
.annotation,.annot{font-size:12.5px;letter-spacing:.08em;color:var(--gray);line-height:1.6}
.v-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  transform:rotate(180deg);
  font-size:11px;
  letter-spacing:.3em;
  color:var(--gray);
}
.prose{max-width:68ch;display:grid;gap:16px;font-size:16.5px;line-height:1.8}
.prose p{max-width:none}

.theme-light{background:var(--cream);color:var(--graphite)}
.theme-light h1,.theme-light h2,.theme-light h3,.theme-light h4{color:var(--graphite)}
.theme-light p{color:var(--graphite)}
.theme-light .annotation,.theme-light .annot{color:#5F686D}
.theme-light .card{background:#FFFFFF;border-color:var(--line-ink)}
.theme-light .stat__label,.theme-light .section-head__note{color:#5F686D}
.theme-light .bar{background:rgba(18,22,26,.12)}

/* ---------- 04 布局容器 ---------- */
.wrap{width:min(var(--wrap),100% - 40px);margin-left:auto;margin-right:auto}
@media (max-width:640px){.wrap{width:min(var(--wrap),100% - 28px)}}
main{padding-top:var(--header-h)}
main[data-flush]{padding-top:0}
.section{padding:64px 0}
.section--tight{padding:38px 0}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 28px;
  border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:32px;
}
.section-head__title{flex:1 1 260px}
.section-head__note{font-size:13px;letter-spacing:.08em;color:var(--gray);max-width:46ch}
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(200px,260px) minmax(0,1fr);gap:36px}
@media (max-width:1024px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:720px){
  .grid--2,.grid--3,.grid--4,.grid--asym{grid-template-columns:minmax(0,1fr)}
  .section{padding:44px 0}
}
.scanlines{position:relative}
.scanlines::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(180deg,rgba(242,240,234,.05) 0 1px,transparent 1px 6px);
}

/* ---------- 05 通用元素 ---------- */
.brand-mark{
  position:relative;display:inline-block;padding-left:20px;
  font-size:19px;font-weight:900;letter-spacing:.02em;color:var(--cream);line-height:1.3;
}
.brand-mark::before{
  content:"";position:absolute;left:0;top:50%;width:10px;height:10px;background:var(--neon);
  transform:translateY(-50%) rotate(45deg);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.24em;color:var(--lake-light);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--neon)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border-radius:99px;
  border:1px solid currentColor;font-size:11px;letter-spacing:.14em;line-height:1.6;
}
.tag--neon{color:var(--neon)}
.tag--amber{color:var(--amber)}
.tag--muted{color:var(--gray)}
.divider{height:1px;background:var(--line);border:0}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;padding:18px 0 0;font-size:12px;letter-spacing:.1em;color:var(--gray)}
.breadcrumbs li{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--moss)}
.breadcrumbs a:hover{color:var(--neon)}

/* ---------- 06 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;border-radius:2px;border:1px solid transparent;
  font-size:14px;font-weight:700;letter-spacing:.08em;line-height:1.2;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--neon);color:var(--graphite);border-color:var(--neon)}
.btn--primary:hover{background:#63F0C6;border-color:#63F0C6}
.btn--ghost{color:var(--cream);border-color:var(--line-strong);background:rgba(242,240,234,.04)}
.btn--ghost:hover{color:var(--neon);border-color:var(--neon)}
.btn--amber{background:var(--amber);color:var(--graphite);border-color:var(--amber)}
.btn--amber:hover{background:#FF9260;border-color:#FF9260}
.theme-light .btn--ghost{color:var(--graphite);border-color:rgba(18,22,26,.3);background:transparent}
.theme-light .btn--ghost:hover{color:var(--graphite);border-color:var(--graphite)}

/* ---------- 07 跳过链接 ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  transform:translateY(-180%);
  background:var(--neon);color:var(--graphite);
  padding:10px 16px;border-radius:2px;font-size:14px;font-weight:800;letter-spacing:.06em;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 08 头部：透明叠加 → 沙湖深蓝实色 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  min-height:var(--header-h);
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(18,22,26,.78) 0%,rgba(18,22,26,.28) 62%,rgba(18,22,26,0) 100%);
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:var(--lake);
  border-bottom-color:rgba(44,232,180,.3);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.header-inner{
  width:min(var(--wrap-wide),100% - 40px);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:12px 0;
}
@media (max-width:640px){.header-inner{width:min(var(--wrap-wide),100% - 28px)}}

.brand{display:grid;gap:2px;flex:0 0 auto}
.brand-tagline{font-size:11px;letter-spacing:.14em;color:var(--gray);padding-left:20px}
@media (max-width:520px){.brand-tagline{display:none}}

/* 主导航 */
.site-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:14.5px;letter-spacing:.08em;color:rgba(242,240,234,.82);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--cream)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--neon)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-extra{display:none}

/* 右侧：节拍钟 + CTA + 菜单按钮 */
.header-side{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.clock-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:2px;
  border:1px solid rgba(255,122,60,.42);background:rgba(255,122,60,.09);
  font-size:11px;letter-spacing:.16em;color:#FFD3BE;white-space:nowrap;
}
.clock-badge__dot{
  width:6px;height:6px;border-radius:50%;background:var(--amber);flex:0 0 auto;
  animation:pulse-dot 1.8s infinite;
}
@keyframes pulse-dot{
  0%{box-shadow:0 0 0 0 rgba(255,122,60,.65)}
  70%{box-shadow:0 0 0 9px rgba(255,122,60,0)}
  100%{box-shadow:0 0 0 0 rgba(255,122,60,0)}
}
.clock-badge__value{
  font-family:var(--font-num);font-weight:700;font-size:15px;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;color:var(--amber);
}
@media (max-width:1180px){.clock-badge__label{display:none}}
@media (max-width:520px){.clock-badge{padding:5px 8px;gap:6px}.clock-badge__value{font-size:14px}}

.header-cta{display:none}
@media (min-width:900px){.header-cta{display:inline-flex}}

.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;padding:9px 11px;
  border:1px solid var(--line-strong);border-radius:2px;
  font-size:12px;letter-spacing:.14em;color:var(--cream);
}
.nav-toggle:hover{border-color:var(--neon);color:var(--neon)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:11px}
.nav-toggle__bars span{
  position:absolute;left:0;right:0;height:1.5px;background:var(--neon);
  transition:transform .22s var(--ease);
}
.nav-toggle__bars span:first-child{top:1px}
.nav-toggle__bars span:last-child{bottom:1px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-4px) rotate(-45deg)}
@media (min-width:900px){.nav-toggle{display:none}}

/* 移动端导航面板 */
@media (max-width:899px){
  .site-nav{
    position:fixed;top:var(--header-h);left:0;right:0;display:block;
    max-height:calc(100vh - var(--header-h));overflow-y:auto;
    padding:14px 22px 26px;
    background:#0B3B50;
    border-top:1px solid rgba(44,232,180,.22);
    border-bottom:1px solid rgba(44,232,180,.22);
    box-shadow:0 34px 60px -34px rgba(0,0,0,.95);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s linear;
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{display:block;padding:14px 2px;font-size:17px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{padding-left:12px}
  .nav-link[aria-current="page"]::before{
    content:"";position:absolute;left:0;top:50%;width:5px;height:5px;background:var(--neon);
    transform:translateY(-50%) rotate(45deg);
  }
  .nav-extra{display:flex;flex-direction:column;gap:10px;margin-top:22px}
  .nav-extra-cta{width:100%}
  .nav-extra-note{font-size:12px;letter-spacing:.1em;color:var(--lake-light)}
}

/* ---------- 09 卡片 / 数据组件 ---------- */
.card{
  background:var(--rock-mid);border:1px solid var(--line);border-radius:3px;
  padding:20px;box-shadow:var(--shadow-soft);
}
.data-rail{display:grid;gap:18px;align-self:start}
@media (min-width:901px){
  .data-rail{position:sticky;top:calc(var(--header-h) + 24px)}
}
.stat{border-left:2px solid rgba(44,232,180,.5);padding:4px 0 4px 14px}
.stat__value{
  display:block;font-family:var(--font-num);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3.4vw,44px);line-height:1.05;color:var(--neon);
}
.stat__label{display:block;margin-top:6px;font-size:12px;letter-spacing:.12em;color:var(--gray)}
.bar{height:6px;border-radius:99px;background:rgba(242,240,234,.1);overflow:hidden}
.bar__fill{
  display:block;height:100%;width:0;border-radius:99px;
  background:linear-gradient(90deg,var(--lake-light),var(--neon));
  transition:width .9s var(--ease);
}

/* ---------- 10 图片容器基础规则 ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:3px;
  border:1px solid var(--line);
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg,#22303A 0%,var(--lake) 58%,var(--rock) 100%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(180deg,rgba(242,240,234,.06) 0 1px,transparent 1px 6px);
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--portrait{aspect-ratio:3 / 4}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame__caption{
  position:absolute;left:12px;bottom:10px;z-index:2;
  font-size:11px;letter-spacing:.12em;color:rgba(242,240,234,.85);
}

/* ---------- 11 标签页 ---------- */
.tab-list{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--line)}
.tab{
  padding:10px 16px;border-radius:2px 2px 0 0;
  border:1px solid transparent;border-bottom:2px solid transparent;
  font-size:13.5px;letter-spacing:.08em;color:var(--gray);
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.tab:hover{color:var(--cream)}
.tab[aria-selected="true"]{
  color:var(--neon);background:rgba(44,232,180,.07);
  border-color:var(--line);border-bottom-color:var(--neon);
}
.tab-panel{padding-top:24px;animation:panel-in .18s var(--ease) both}
.tab-panel[hidden]{display:none}
@keyframes panel-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- 12 手风琴 ---------- */
.accordion{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;text-align:left;font-size:17px;font-weight:700;letter-spacing:.01em;color:inherit;
}
.acc-trigger::after{
  content:"+";font-family:var(--font-num);font-size:20px;line-height:1;color:var(--neon);
}
.acc-trigger[aria-expanded="true"]::after{content:"–"}
.acc-trigger:hover{color:var(--neon)}
.acc-panel{padding:0 0 20px;font-size:15.5px;line-height:1.8;color:rgba(242,240,234,.86)}
.acc-panel[hidden]{display:none}
.theme-light .acc-panel{color:#2B3238}

/* ---------- 13 显现 ---------- */
.has-js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.has-js .reveal.is-visible{opacity:1;transform:none}

/* ---------- 14 页脚 ---------- */
.site-footer{
  position:relative;margin-top:80px;padding:56px 0 26px;
  background:var(--rock);border-top:1px solid var(--line);color:var(--cream);overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(120% 90% at 12% 0%,rgba(14,74,99,.6),transparent 62%),
    repeating-linear-gradient(180deg,rgba(242,240,234,.035) 0 1px,transparent 1px 5px);
}
.footer-inner{position:relative;z-index:1}
.footer-top{
  display:grid;grid-template-columns:minmax(250px,1fr) minmax(0,2.15fr);
  gap:44px;padding-bottom:34px;border-bottom:1px solid var(--line);
}
.footer-brand{display:grid;gap:14px;align-content:start}
.footer-logo{display:inline-block}
.footer-line{font-size:14.5px;line-height:1.8;color:rgba(242,240,234,.78);max-width:34ch}
.footer-contact{font-size:13px;line-height:1.95;color:var(--gray);letter-spacing:.03em}
.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}
.footer-col__title{
  font-size:12px;font-weight:700;letter-spacing:.22em;color:var(--lake-light);margin-bottom:14px;
}
.footer-list{display:grid;gap:10px}
.footer-link{
  font-size:14px;color:rgba(242,240,234,.78);border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--neon);border-bottom-color:var(--neon)}
.footer-base{
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;align-items:center;
  padding-top:20px;font-size:12px;letter-spacing:.06em;color:var(--gray);
}
.footer-legal{margin:0}
.footer-note{margin:0;color:var(--gray)}

@media (max-width:1024px){
  .footer-top{grid-template-columns:minmax(0,1fr);gap:34px}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:520px){
  .site-footer{padding:44px 0 22px;margin-top:56px}
  .footer-line{max-width:none}
}

/* ---------- 15 返回顶部 ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:2px;
  border:1px solid rgba(44,232,180,.42);background:rgba(18,22,26,.88);color:var(--neon);
  font-size:12px;letter-spacing:.14em;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s linear;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--neon);background:rgba(44,232,180,.12)}

/* ---------- 16 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js .reveal{opacity:1;transform:none}
  .bar__fill{transition:none}
  .btn:hover{transform:none}
}