/* ===== 333体育主站 · 共享外壳样式 /assets/site.css ===== */
:root{
  --ink:#0B1F16;
  --panel:#123024;
  --panel-deep:#08170F;
  --cream:#F4EDE0;
  --orange:#FF6A1A;
  --blue:#3D7BFF;
  --silver:#C9CFD4;
  --brown:#2A1A12;
  --rust:#D8452C;
  --green:#7FE0A8;
  --line:rgba(201,207,212,.22);
  --line-strong:rgba(201,207,212,.4);
  --font-head:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","IBM Plex Mono",Menlo,Consolas,monospace;
  --shell:1240px;
  --cut:22px;
  --ease:cubic-bezier(.22,.68,.24,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--cream);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,dl,dt,dd,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
img,svg,video{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}

.shell{width:min(100% - 40px,var(--shell));margin-inline:auto}
.site-main{display:block}
#main-content{scroll-margin-top:150px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.u-ink{color:var(--brown)}
.u-orange{color:var(--orange)}
.u-silver{color:var(--silver)}
.u-mono{font-family:var(--font-mono)}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:120;
  padding:10px 16px;background:var(--orange);color:var(--ink);
  font-weight:700;font-size:14px;clip-path:polygon(8px 0,100% 0,100% 100%,0 100%,0 8px);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(11,31,22,.98),rgba(11,31,22,.94));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.site-header::after{
  content:"";position:absolute;inset:0 0 auto auto;width:120px;height:3px;
  background:repeating-linear-gradient(90deg,var(--orange) 0 6px,transparent 6px 12px);
  opacity:.7;pointer-events:none;
}
.masthead{border-bottom:1px solid var(--line)}
.masthead__inner{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:14px 0;min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand__mark{
  flex:0 0 auto;width:48px;height:48px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--panel),var(--panel-deep));
  border:1px solid rgba(255,106,26,.55);
  color:var(--orange);font-family:var(--font-mono);font-weight:700;font-size:14px;
  letter-spacing:-.06em;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-size:17px;font-weight:800;letter-spacing:.04em;line-height:1.3;color:var(--cream)}
.brand__tag{font-size:12px;color:var(--silver);letter-spacing:.02em;line-height:1.4}
.brand--footer .brand__mark{border-color:var(--line-strong);color:var(--green)}

.status-rail{
  display:flex;align-items:center;gap:24px;margin-left:auto;
  overflow-x:auto;scrollbar-width:none;padding:2px 0;
}
.status-rail::-webkit-scrollbar{display:none}
.status-item{display:flex;flex-direction:column;flex:0 0 auto;line-height:1.3}
.status-item__k{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--silver);opacity:.75;text-transform:uppercase}
.status-item__v{font-size:13px;color:var(--cream);white-space:nowrap}
.status-item:nth-child(2) .status-item__v{color:var(--orange)}
.status-item:nth-child(4) .status-item__v{color:var(--green)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  background:transparent;border:1px solid var(--line-strong);
  padding:9px 13px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  cursor:pointer;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange)}
.nav-toggle__bars{position:relative;display:inline-block;width:16px;height:10px}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:var(--orange);
  transition:transform .18s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle.is-active .nav-toggle__bars::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle.is-active .nav-toggle__bars::after{transform:translateY(-4px) rotate(-45deg)}

.nav-bar{position:relative;background:linear-gradient(180deg,rgba(18,48,36,.6),rgba(11,31,22,.2))}
.nav-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.primary-nav{min-width:0}
.nav-list{display:flex;align-items:center;gap:2px;counter-reset:navindex}
.nav-item{counter-increment:navindex}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:15px 15px;color:var(--silver);font-size:15px;font-weight:600;
  transition:color .18s var(--ease);
}
.nav-link::before{
  content:"0" counter(navindex);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--rust);
}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:8px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--cream)}
.nav-link:hover::after{transform:scaleX(.45)}
.nav-link[aria-current="page"]{color:var(--orange)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-meta{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--silver);opacity:.7;
  white-space:nowrap;
}
.scroll-rail{height:2px;background:rgba(201,207,212,.14)}
.scroll-rail__fill{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--blue),var(--green) 40%,var(--orange));
}
.site-header.is-condensed .masthead__inner{padding:7px 0;min-height:58px}
.site-header.is-condensed .brand__mark{width:40px;height:40px;font-size:12px}
.site-header.is-condensed .brand__tag{display:none}
.site-header.is-condensed .nav-link{padding:11px 14px}
.site-header.is-condensed .nav-link::after{bottom:5px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-align:center;
  clip-path:polygon(11px 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%,0 11px);
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--orange);color:#0B1F16}
.btn--primary:hover{background:#FF8340}
.btn--blue{background:var(--blue);color:#04101F}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--cream)}
.btn--ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn--quiet{background:var(--panel);border-color:var(--line);color:var(--cream)}
.btn--quiet:hover{border-color:var(--silver)}

/* ---------- sections & headings ---------- */
.section{padding:64px 0}
.section--tight{padding:42px 0}
.section--ink{background:var(--ink)}
.section--panel{background:var(--panel)}
.section--cream{background:var(--cream);color:var(--brown)}
.section--cream .eyebrow{color:var(--rust)}
.section--cream .u-silver{color:#6B5A4E}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--orange);
}
.display-1{font-family:var(--font-head);font-size:clamp(38px,6vw,64px);line-height:1.06;font-weight:800;letter-spacing:-.02em}
.display-2{font-family:var(--font-head);font-size:clamp(28px,4vw,40px);line-height:1.12;font-weight:800;letter-spacing:-.02em}
.display-3{font-family:var(--font-head);font-size:clamp(20px,2.6vw,28px);line-height:1.24;font-weight:800;letter-spacing:-.01em}
.lede{font-size:17px;line-height:1.8;max-width:62ch;color:var(--silver)}
.section--cream .lede{color:#4A3628}

/* ---------- panels ---------- */
.panel{
  background:var(--panel);border:1px solid var(--line);padding:24px;
}
.panel--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%)}
.panel--cream{background:var(--cream);color:var(--brown);border-color:rgba(42,26,18,.16)}
.panel--flat{background:var(--panel-deep);border:1px solid var(--line)}

/* ---------- grid ---------- */
.grid{display:grid;gap:22px}
.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--editorial{grid-template-columns:minmax(0,7fr) minmax(0,3fr);gap:32px}
.grid--left{grid-template-columns:minmax(0,3fr) minmax(0,7fr);gap:32px}
.grid--right{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;overflow:hidden;background:var(--panel-deep);
  border:1px solid var(--line);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media-frame__img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;filter:saturate(.96) contrast(1.06)}
.media-frame--wide .media-frame__img{aspect-ratio:21/9}
.media-frame--tall .media-frame__img{aspect-ratio:4/5}
.media-frame--square .media-frame__img{aspect-ratio:1/1}
.media-frame__ph{
  aspect-ratio:16/10;width:100%;
  background:
    linear-gradient(115deg,rgba(61,123,255,.28),transparent 46%),
    repeating-linear-gradient(90deg,rgba(201,207,212,.16) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(0deg,rgba(201,207,212,.1) 0 1px,transparent 1px 34px),
    linear-gradient(160deg,var(--panel),var(--panel-deep));
}
.media-frame__cap{
  position:absolute;left:0;bottom:0;padding:6px 12px;
  background:rgba(8,23,15,.86);color:var(--silver);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
}

/* ---------- tags / stats / rules ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  padding:3px 9px;border:1px solid var(--line-strong);color:var(--silver);
}
.tag--orange{color:var(--orange);border-color:rgba(255,106,26,.5)}
.tag--blue{color:var(--blue);border-color:rgba(61,123,255,.5)}
.tag--silver{color:var(--silver)}
.tag--index{background:var(--rust);border-color:var(--rust);color:var(--cream)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{font-family:var(--font-mono);font-size:28px;line-height:1.1;color:var(--green)}
.rule-line{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong) 30%,var(--line-strong) 70%,transparent);border:0}
.tick-rule{
  height:10px;
  background:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px 14px);
}

/* ---------- prose ---------- */
.prose{max-width:72ch;font-size:17px;line-height:1.9}
.prose h2{font-family:var(--font-head);font-size:clamp(22px,3vw,28px);line-height:1.3;font-weight:800;margin:34px 0 12px;letter-spacing:-.01em}
.prose h3{font-size:19px;font-weight:700;margin:26px 0 10px}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:6px 0}
.prose a{border-bottom:1px solid var(--blue);color:var(--blue)}
html[data-read-size="sm"] .prose{font-size:15px;line-height:1.85}
html[data-read-size="md"] .prose{font-size:17px}
html[data-read-size="lg"] .prose{font-size:20px;line-height:2}

.reader-size{display:inline-flex;gap:6px;align-items:center}
.reader-size__btn{
  background:transparent;border:1px solid var(--line-strong);color:var(--silver);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;padding:5px 10px;cursor:pointer;
}
.reader-size__btn[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#04101F}

/* ---------- filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filter-btn{
  background:transparent;border:1px solid var(--line-strong);color:var(--silver);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  padding:8px 14px;cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.filter-btn:hover{border-color:var(--orange);color:var(--orange)}
.filter-btn[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#0B1F16}
[data-filter-item][hidden]{display:none}
.filter-status{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--silver)}

/* ---------- fold (details) ---------- */
.fold{background:var(--panel);border:1px solid var(--line);margin-bottom:10px}
.fold__head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;cursor:pointer;font-weight:700;font-size:16px;list-style:none;
}
.fold__head::-webkit-details-marker{display:none}
.fold__head::after{
  content:"展开";font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--orange);
}
.fold[open] .fold__head::after{content:"收起"}
.fold__head:hover{background:rgba(61,123,255,.08)}
.fold__body{padding:0 20px 18px;border-top:1px dashed var(--line);color:var(--silver);font-size:16px}
.fold__body p{margin:12px 0 0}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:18px 0 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;color:var(--silver)}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line-strong)}
.breadcrumb__link{color:var(--silver);border-bottom:1px solid transparent}
.breadcrumb__link:hover{color:var(--orange);border-bottom-color:var(--orange)}
.breadcrumb__item[aria-current="page"]{color:var(--orange)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .34s var(--ease),transform .34s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  background:linear-gradient(180deg,var(--ink),var(--panel-deep));
  border-top:1px solid var(--line);color:var(--silver);
  padding:56px 0 24px;
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:30px}
.footer__col{display:flex;flex-direction:column;gap:14px;min-width:0}
.footer__title{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--orange);font-weight:600;
}
.footer__list{display:grid;gap:9px}
.footer__link{
  font-size:15px;color:var(--cream);border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);width:fit-content;
}
.footer__link:hover{color:var(--orange);border-bottom-color:var(--orange)}
.footer__list--plain li{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--silver)}
.footer__k{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--silver);opacity:.7;min-width:64px}
.footer__note{font-size:14px;line-height:1.8;max-width:34ch;color:var(--silver)}
.copy-btn{
  background:transparent;border:1px dashed var(--line-strong);color:var(--green);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;padding:3px 8px;cursor:pointer;
}
.copy-btn:hover{border-color:var(--green);border-style:solid}
.copy-btn.is-done{background:var(--green);color:var(--ink);border-color:var(--green)}
.footer__meta{
  display:flex;flex-wrap:wrap;gap:14px 26px;justify-content:space-between;
  margin-top:40px;padding-top:18px;border-top:1px dashed var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--silver);opacity:.85;
}
.footer__rhythm{
  margin-top:12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:rgba(201,207,212,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .grid--editorial,.grid--left,.grid--right{grid-template-columns:minmax(0,1fr)}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .status-rail{
    order:3;flex-basis:100%;margin-left:0;gap:20px;
    border-top:1px dashed var(--line);padding-top:10px;
  }
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__col--brand{grid-column:1/-1}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .status-rail{order:4}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;z-index:70;display:none;
    background:var(--panel);border:1px solid var(--line);border-top:0;
    padding:6px 0 12px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
    box-shadow:0 22px 40px rgba(0,0,0,.45);
  }
  .primary-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid rgba(201,207,212,.1)}
  .nav-link{padding:14px 20px;width:100%}
  .nav-link::after{left:20px;right:auto;width:34px;bottom:9px}
  .nav-meta{display:none}
  html.nav-open{overflow:hidden}
}
@media (max-width:720px){
  .shell{width:min(100% - 32px,var(--shell))}
  .section{padding:46px 0}
  .masthead__inner{padding:11px 0;gap:12px;min-height:64px}
  .brand__tag{display:none}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .footer__grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer__meta{flex-direction:column;gap:8px}
  .panel{padding:18px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .btn:hover{transform:none}
  html{scroll-behavior:auto}
}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}