/* =========================================================
   米尔体育赛事 — /assets/site.css
   reset / 变量 / 中文排版 / 共享页头页脚 / 通用组件
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:var(--ice);text-decoration:none}
a:hover{color:var(--lime)}
button{font:inherit;color:inherit;background:none;border:0}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
::selection{background:var(--lime);color:var(--carbon)}

/* ---------- 2. 变量 ---------- */
:root{
  --carbon:#0B0E11;
  --panel:#1A1F26;
  --panel-deep:#11161B;
  --line:#2E3A46;
  --lime:#C6FF00;
  --ice:#4DD0E1;
  --mint:#7CFFCB;
  --amber:#FFB300;
  --red:#FF3B30;
  --white:#F5F7FA;
  --text-dim:rgba(245,247,250,.68);
  --text-faint:rgba(245,247,250,.44);
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"DejaVu Sans Mono","Courier New",monospace;
  --wrap:1240px;
  --gap:clamp(16px,2.4vw,32px);
  --cut:14px;
  --speed:.22s;
}

/* ---------- 3. 基础与中文排版 ---------- */
body{
  background-color:var(--carbon);
  background-image:
    linear-gradient(rgba(46,58,70,.28) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,58,70,.28) 1px,transparent 1px);
  background-size:84px 84px;
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.02em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:300;line-height:1.12;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,6vw,5.2rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.15rem,2vw,1.5rem)}
p{max-width:72ch}
strong{font-weight:600;color:var(--lime)}
.num,.stat__value,.meta-chip__value,.data-strip__val,.footer-legal__icp{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.accent{color:var(--lime)}
.accent--ice{color:var(--ice)}
[data-chapter]{scroll-margin-top:96px}

/* ---------- 4. 跳转链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:200;
  padding:10px 18px;
  background:var(--lime);color:var(--carbon);
  font-size:14px;font-weight:700;letter-spacing:.08em;
  transition:top var(--speed) ease;
}
.skip-link:focus{top:12px;color:var(--carbon)}

/* ---------- 5. 布局原语 ---------- */
.container{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:24px}
.container--wide{max-width:1440px}
.container--narrow{max-width:760px}
.section{position:relative;padding:clamp(44px,7vw,96px) 0}
.section__head{
  display:flex;flex-wrap:wrap;gap:14px 28px;align-items:flex-end;justify-content:space-between;
  margin-bottom:clamp(20px,3vw,36px);padding-bottom:16px;border-bottom:1px solid var(--line);
}
.section__title{font-size:clamp(1.6rem,3.4vw,2.6rem)}
.section__lead{max-width:56ch;color:var(--text-dim);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--lime);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--lime);transform:skewX(-32deg)}
.grid{display:grid;gap:var(--gap)}
.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(0,1.35fr) minmax(0,.65fr)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.08em;
  border:1px solid transparent;cursor:pointer;
  clip-path:polygon(0 0,100% 0,100% 68%,calc(100% - 12px) 100%,0 100%);
  transition:background-color var(--speed) ease,color var(--speed) ease,border-color var(--speed) ease,transform var(--speed) ease;
}
.btn:hover{transform:translateX(2px)}
.btn--primary{background:var(--lime);color:var(--carbon)}
.btn--primary:hover{background:var(--mint);color:var(--carbon)}
.btn--ghost{background:rgba(26,31,38,.7);color:var(--white);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ice);color:var(--ice)}
.btn--ice{background:var(--ice);color:var(--carbon)}
.btn--ice:hover{background:var(--mint);color:var(--carbon)}

/* ---------- 7. 标签 / 面板 / 媒体 / 数据组件 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;font-size:12px;letter-spacing:.12em;
  background:rgba(245,247,250,.08);border:1px solid var(--line);color:var(--white);
  clip-path:polygon(6px 0,100% 0,100% 100%,0 100%);
}
.tag--live{background:rgba(198,255,0,.12);border-color:var(--lime);color:var(--lime)}
.tag--ice{background:rgba(77,208,225,.12);border-color:var(--ice);color:var(--ice)}
.tag--amber{background:rgba(255,179,0,.12);border-color:var(--amber);color:var(--amber)}
.tag--red{background:rgba(255,59,48,.12);border-color:var(--red);color:var(--red)}
.tag--mint{background:rgba(124,255,203,.12);border-color:var(--mint);color:var(--mint)}

.panel{position:relative;background:var(--panel);border:1px solid var(--line);padding:clamp(18px,2.4vw,28px)}
.panel--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%)}
.panel--deep{background:var(--panel-deep)}
.panel--accent{border-top:3px solid var(--lime)}
.panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.panel__title{font-family:var(--font-display);font-weight:400;font-size:18px;letter-spacing:.02em}
.panel__body{color:var(--text-dim);font-size:15px}
.panel__body p + p{margin-top:12px}

.media{position:relative;overflow:hidden;background:var(--panel-deep);border:1px solid var(--line)}
.media__frame{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media__frame--tall{aspect-ratio:3/4}
.media__frame--square{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) contrast(1.08) brightness(.9)}
.media__caption{
  padding:12px 16px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--text-dim);
}

.stat-row{display:flex;flex-wrap:wrap;gap:clamp(16px,3vw,40px)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:600;line-height:1;color:var(--lime)}
.stat__label{font-size:12px;letter-spacing:.18em;color:var(--text-faint)}

.data-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  padding:12px 16px;font-size:13px;
  background:var(--panel-deep);border:1px solid var(--line);border-left:3px solid var(--ice);
}
.data-strip__key{font-size:12px;letter-spacing:.14em;color:var(--text-faint)}
.data-strip__val{color:var(--white)}

/* ---------- 8. 面包屑与目录 ---------- */
.breadcrumb{padding:14px 0;font-size:13px;color:var(--text-faint)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__link{color:var(--text-dim)}
.breadcrumb__link:hover{color:var(--lime)}
.breadcrumb__sep{color:var(--line)}

.toc{padding:16px 18px;background:var(--panel-deep);border:1px solid var(--line);border-left:3px solid var(--lime)}
.toc__list{display:flex;flex-wrap:wrap;gap:6px}
.toc__link{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;font-size:13px;letter-spacing:.06em;
  color:var(--text-dim);border:1px solid transparent;
}
.toc__link:hover{color:var(--lime);border-color:var(--line)}
.toc__link[aria-current="true"]{color:var(--carbon);background:var(--lime)}

/* ---------- 9. 动效工具 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .45s ease,transform .45s ease}
.reveal.is-visible{opacity:1;transform:none}
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:90;
  transform:scaleX(0);transform-origin:0 50%;pointer-events:none;
  background:linear-gradient(90deg,var(--lime),var(--ice));
}
@keyframes sig-pulse{
  0%{box-shadow:0 0 0 0 rgba(198,255,0,.55)}
  70%{box-shadow:0 0 0 9px rgba(198,255,0,0)}
  100%{box-shadow:0 0 0 0 rgba(198,255,0,0)}
}

/* ---------- 10. 页头 ---------- */
.site-header{position:relative;z-index:70;background:var(--carbon)}

.header-strip{background:var(--panel-deep);border-bottom:1px solid var(--line);font-size:12px;color:var(--text-dim)}
.header-strip__inner{
  max-width:var(--wrap);margin-inline:auto;padding:8px 24px;
  display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;text-align:center;
}
.header-strip__dot{width:6px;height:6px;background:var(--ice);transform:rotate(45deg);flex:0 0 auto}
.header-strip__text{letter-spacing:.04em}

.masthead{
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(120% 160% at 50% -40%,rgba(198,255,0,.10),transparent 62%),
    radial-gradient(80% 130% at 100% 130%,rgba(77,208,225,.08),transparent 60%),
    var(--carbon);
}
.masthead__inner{
  max-width:var(--wrap);margin-inline:auto;
  padding:clamp(18px,2.6vw,30px) 24px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;
}
.masthead__side{display:flex;align-items:center;gap:14px;min-width:0}
.masthead__side--start{justify-content:flex-start}
.masthead__side--end{justify-content:flex-end}

.nav-toggle{
  display:none;width:44px;height:44px;flex:0 0 auto;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  background:var(--panel);border:1px solid var(--line);color:var(--white);
  clip-path:polygon(0 0,100% 0,100% 100%,10px 100%,0 calc(100% - 10px));
  cursor:pointer;
}
.nav-toggle__bar{display:block;width:20px;height:2px;background:currentColor;transition:transform var(--speed) ease,opacity var(--speed) ease}
.site-header[data-open] .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bar:nth-child(2){opacity:0;transform:scaleX(.4)}
.site-header[data-open] .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.live-dot{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;color:var(--lime);
}
.live-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);animation:sig-pulse 2.2s infinite}

.brand{display:inline-flex;align-items:center;gap:14px;justify-self:center;color:var(--white)}
.brand:hover{color:var(--white)}
.brand__mark{
  display:grid;place-items:center;width:46px;height:46px;flex:0 0 auto;
  background:var(--lime);color:var(--carbon);
  font-family:var(--font-mono);font-size:18px;font-weight:700;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;gap:2px;line-height:1.1;text-align:left}
.brand__name{font-family:var(--font-display);font-weight:400;font-size:clamp(20px,2.4vw,26px);letter-spacing:.14em}
.brand__tagline{font-size:12px;color:var(--text-faint);letter-spacing:.1em}

.meta-chip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;white-space:nowrap;
  background:rgba(26,31,38,.72);border:1px solid var(--line);font-size:12px;
}
.meta-chip__label{color:var(--text-faint);letter-spacing:.14em}
.meta-chip__value{color:var(--lime)}
.meta-chip--version .meta-chip__value{color:var(--ice)}

.site-nav{background:rgba(26,31,38,.55);border-top:1px solid var(--line)}
.site-nav__inner{
  position:relative;max-width:var(--wrap);margin-inline:auto;padding:0 24px;
  display:flex;align-items:center;justify-content:center;gap:18px;
}
.site-nav__list{display:flex;flex-wrap:wrap;align-items:center;justify-content:center}
.site-nav__item{display:block}
.site-nav__link{position:relative;display:block;padding:16px 18px;color:var(--white);font-size:15px;letter-spacing:.1em}
.site-nav__link::after{
  content:"";position:absolute;left:18px;right:18px;bottom:10px;height:2px;
  background:var(--lime);transform:scaleX(0) skewX(-32deg);transform-origin:left center;
  transition:transform var(--speed) ease;
}
.site-nav__link:hover{color:var(--lime)}
.site-nav__link:hover::after{transform:scaleX(1) skewX(-32deg)}
.site-nav__link[aria-current="page"]{color:var(--lime)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1) skewX(-32deg)}
.site-nav__cta{position:absolute;right:24px;top:50%;transform:translateY(-50%)}
.site-nav__cta:hover{transform:translateY(-50%) translateX(2px)}

/* ---------- 11. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,8vw,96px);
  background:linear-gradient(180deg,var(--panel-deep),var(--carbon));
  border-top:1px solid var(--line);
}
.footer-rail{
  height:10px;
  background:linear-gradient(115deg,
    var(--lime) 0 22%,transparent 22% 28%,
    var(--ice) 28% 44%,transparent 44% 51%,
    var(--line) 51% 100%);
}
.footer__inner{
  max-width:var(--wrap);margin-inline:auto;
  padding:clamp(32px,5vw,66px) 24px 0;
  display:grid;grid-template-columns:minmax(250px,1.05fr) minmax(0,1.5fr);
  gap:clamp(24px,4vw,56px);
}
.footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer__wordmark{font-family:var(--font-display);font-weight:300;font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.1;letter-spacing:-.01em}
.footer__lead{color:var(--text-dim);font-size:15px;letter-spacing:.04em;max-width:30ch}
.footer__cta{margin-top:4px}
.footer__main{display:grid;gap:22px;align-content:start}
.footer__columns{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.footer-col{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;background:var(--panel);color:var(--white);
  border-left:3px solid var(--line);font-size:14px;letter-spacing:.06em;
  clip-path:polygon(0 0,100% 0,100% 70%,calc(100% - 14px) 100%,0 100%);
  transition:background-color var(--speed) ease,color var(--speed) ease,border-color var(--speed) ease,transform var(--speed) ease;
}
.footer-col::after{content:"→";font-family:var(--font-mono);font-size:13px;color:var(--lime)}
.footer-col:hover,.footer-col:focus-visible{background:#20272F;border-left-color:var(--lime);color:var(--lime);transform:translateX(4px)}

.footer-contact{padding:20px;background:var(--panel-deep);border:1px solid var(--line);border-top:3px solid var(--ice)}
.footer-contact__title{font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;color:var(--ice);margin-bottom:14px}
.footer-contact__list{display:grid;gap:10px}
.footer-contact__item{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px;font-size:14px}
.footer-contact__label{min-width:74px;font-size:12px;letter-spacing:.16em;color:var(--text-faint)}
.footer-contact__value{color:var(--white)}
.footer-contact__value--text{font-family:var(--font-body);letter-spacing:.02em;line-height:1.7}
.footer-contact__action{margin-top:18px}
.footer-note{padding-left:12px;border-left:2px solid var(--amber);font-size:13px;line-height:1.7;color:var(--text-dim);max-width:64ch}

.footer-legal{margin-top:clamp(28px,4vw,48px);border-top:1px solid var(--line);background:rgba(11,14,17,.6)}
.footer-legal__inner{
  max-width:var(--wrap);margin-inline:auto;padding:18px 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 22px;
  font-size:13px;color:var(--text-dim);
}
.footer-legal__group{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}
.footer-legal__link{color:var(--text-dim)}
.footer-legal__link:hover{color:var(--lime)}
.footer-legal__icp{color:var(--text-faint)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;
  background:transparent;border:1px solid var(--line);color:var(--white);
  font-size:12px;letter-spacing:.18em;cursor:pointer;
  clip-path:polygon(10px 0,100% 0,100% 100%,0 100%);
  transition:background-color var(--speed) ease,color var(--speed) ease,border-color var(--speed) ease;
}
.to-top::before{content:"";width:9px;height:9px;background:currentColor;clip-path:polygon(50% 0,100% 100%,0 100%)}
.to-top:hover{border-color:var(--lime);color:var(--lime);background:rgba(198,255,0,.06)}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1100px){
  .site-nav__inner{flex-direction:column;gap:8px;padding:0 20px 16px}
  .site-nav__cta{position:static;transform:none}
  .site-nav__cta:hover{transform:translateX(2px)}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  .grid--3,.grid--asym{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__inner{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:860px){
  .header-strip__inner{padding:7px 16px;font-size:11px}
  .masthead__inner{grid-template-columns:auto 1fr auto;gap:12px;padding:14px 16px}
  .brand{gap:10px}
  .brand__mark{width:38px;height:38px;font-size:15px}
  .brand__tagline{display:none}
  .brand__name{font-size:19px;letter-spacing:.1em}
  .live-dot{display:none}
  .meta-chip--version{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;z-index:80;
    background:linear-gradient(180deg,var(--panel),var(--panel-deep));
    border-top:2px solid var(--lime);border-bottom:1px solid var(--line);
    clip-path:polygon(0 0,100% 0,100% 94%,0 100%);
    max-height:0;overflow:hidden;visibility:hidden;opacity:0;
    transition:max-height .34s ease,opacity .24s ease,visibility .34s ease;
  }
  .site-header[data-open] .site-nav{max-height:min(78vh,560px);overflow-y:auto;visibility:visible;opacity:1}
  .site-nav__inner{flex-direction:column;align-items:stretch;gap:14px;padding:14px 18px 30px}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{padding:15px 8px;border-bottom:1px solid var(--line);font-size:17px;letter-spacing:.06em}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{padding-left:16px;border-left:3px solid var(--lime);background:rgba(198,255,0,.06)}
  .site-nav__cta{position:static;transform:none;width:100%}
  .site-nav__cta:hover{transform:none}
  .footer__columns{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
}
@media (max-width:640px){
  .container{padding-inline:18px}
  .grid--2,.grid--3,.grid--4,.grid--asym{grid-template-columns:minmax(0,1fr)}
  .footer-legal__inner{flex-direction:column;align-items:flex-start}
  .footer-col{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .scroll-progress{transition:none}
}