/* ==========================================================================
   必威体育网 · 通道 V4 — 共享样式表 /assets/site.css
   夜间赛场 × 数据指挥中心
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --c-ink:#06120E;
  --c-panel:#0D2A21;
  --c-char:#111417;
  --c-cyan:#2FE9C6;
  --c-orange:#FF7A2F;
  --c-indigo:#4B3F96;
  --c-wine:#6E1B36;
  --c-silver:#C3CCD2;
  --c-mist:#EDF4F1;
  --c-lime:#D8F35A;

  --line:rgba(195,204,210,.22);
  --line-strong:rgba(195,204,210,.45);
  --line-soft:rgba(195,204,210,.12);

  --txt:var(--c-mist);
  --txt-dim:rgba(237,244,241,.66);
  --txt-faint:rgba(237,244,241,.45);

  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","Roboto Mono",SFMono-Regular,Menlo,Consolas,monospace;

  --fs-12:12px; --fs-13:13px; --fs-16:16px; --fs-20:20px;
  --fs-28:28px; --fs-40:40px; --fs-56:56px; --fs-72:72px;

  --wrap:1200px;
  --gutter:24px;
  --radius:2px;
  --t-fast:120ms;
  --t-mid:240ms;
  --t-slow:480ms;
  color-scheme:dark;
}

/* ---------- 2. Reset 与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--c-ink);
  background-image:
    radial-gradient(900px 420px at 50% -180px, rgba(47,233,198,.10), rgba(6,18,14,0) 70%),
    linear-gradient(rgba(195,204,210,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(195,204,210,.045) 1px, transparent 1px);
  background-size:auto, 96px 96px, 96px 96px;
  color:var(--txt);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
hr{border:0}
::selection{background:var(--c-cyan);color:#04120d}
#main-content{display:block}
main{display:block}

:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px;border-radius:2px}
.skip-link{
  position:absolute;left:16px;top:-72px;z-index:200;
  padding:10px 18px;background:var(--c-cyan);color:#04120d;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top var(--t-fast) ease;
}
.skip-link:focus{top:0}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{
  margin:0 0 .6em;
  font-family:var(--font-display);
  font-weight:900;
  font-stretch:87%;
  line-height:1.12;
  letter-spacing:.01em;
  color:var(--c-mist);
}
h1{font-size:clamp(34px,5vw,var(--fs-56))}
h2{font-size:clamp(24px,3.2vw,32px)}
h3{font-size:var(--fs-20);line-height:1.3}
h4{font-size:var(--fs-16);line-height:1.35}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-cyan);margin-bottom:14px;
}
.kicker::before{content:"";display:block;width:26px;height:1px;background:currentColor}
.label{font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.08em;color:var(--txt-faint)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--c-cyan)}
.lede{font-size:var(--fs-20);line-height:1.65;color:var(--txt-dim);max-width:48ch}
.text-dim{color:var(--txt-dim)}
.text-faint{color:var(--txt-faint)}

/* ---------- 4. 链接与按钮 ---------- */
.link{
  color:var(--c-cyan);
  border-bottom:1px solid rgba(47,233,198,.35);
  transition:border-color var(--t-fast) ease,color var(--t-fast) ease;
}
.link:hover{border-bottom-color:var(--c-cyan)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.12em;
  color:var(--c-cyan);border-bottom:1px solid rgba(47,233,198,.35);padding-bottom:2px;
}
.link-more::after{content:"→";transition:transform var(--t-fast) ease}
.link-more:hover::after{transform:translateX(3px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;
  border:1px solid var(--line-strong);
  background:transparent;color:var(--c-mist);
  font-family:var(--font-mono);font-size:var(--fs-13);letter-spacing:.08em;
  border-radius:var(--radius);cursor:pointer;
  transition:background var(--t-fast) ease,color var(--t-fast) ease,
             border-color var(--t-fast) ease,transform var(--t-fast) ease;
}
.btn:hover{border-color:var(--c-cyan);color:var(--c-cyan);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-ghost{background:rgba(47,233,198,.06)}
.btn-solid{background:var(--c-orange);border-color:var(--c-orange);color:#140703;font-weight:700}
.btn-solid:hover{background:#ff9350;border-color:#ff9350;color:#140703}

.copy-btn{
  margin-left:10px;padding:3px 10px;background:transparent;
  border:1px solid var(--line-strong);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--txt-dim);cursor:pointer;
  transition:color var(--t-fast) ease,border-color var(--t-fast) ease,background var(--t-fast) ease;
}
.copy-btn:hover{color:var(--c-cyan);border-color:var(--c-cyan);background:rgba(47,233,198,.08)}

/* ---------- 5. 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.section{padding:56px 0}
.section-tight{padding:32px 0}
.page-head{padding:40px 0 24px;border-bottom:1px solid var(--line-soft)}
.stack{display:flex;flex-direction:column;gap:16px}
.rule{height:1px;background:var(--line);border:0;margin:0}
.rule-cyan{height:1px;background:linear-gradient(90deg,var(--c-cyan),rgba(47,233,198,0))}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0 0 24px;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.1em;color:var(--txt-faint);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(47,233,198,.5)}
.breadcrumb a{color:var(--txt-dim);transition:color var(--t-fast) ease}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb [aria-current="page"]{color:var(--c-cyan)}

.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 6. 通用组件 ---------- */
.panel{
  background:var(--c-panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 18px;border-bottom:1px solid var(--line-soft);
}
.panel-title{margin:0;font-family:var(--font-display);font-weight:800;font-stretch:87%;font-size:15px;letter-spacing:.06em}
.panel-body{padding:18px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:2px 9px;border:1px solid var(--line-strong);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--txt-dim);white-space:nowrap;
}
.tag-cyan{color:var(--c-cyan);border-color:rgba(47,233,198,.5);background:rgba(47,233,198,.07)}
.tag-orange{color:var(--c-orange);border-color:rgba(255,122,47,.5);background:rgba(255,122,47,.08)}
.tag-lime{color:var(--c-lime);border-color:rgba(216,243,90,.45);background:rgba(216,243,90,.08)}
.tag-indigo{color:#BEB8F0;border-color:rgba(75,63,150,.85);background:rgba(75,63,150,.3)}

.index-list{list-style:none;margin:0;padding:0}
.index-item{
  display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:12px;align-items:baseline;
  padding:13px 0;border-bottom:1px solid var(--line-soft);
  transition:transform var(--t-fast) ease,color var(--t-fast) ease;
}
.index-item:hover{transform:translateX(2px)}
.index-num{font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.08em;color:rgba(47,233,198,.72)}

.stat-row{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(128px,1fr));
  gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);
}
.stat{background:var(--c-ink);padding:14px 16px}
.stat-key{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--txt-faint)}
.stat-val{
  display:block;font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:700;font-size:var(--fs-28);line-height:1.15;color:var(--c-cyan);
}
.stat-val.is-alert{color:var(--c-orange)}

.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-btn{
  padding:6px 12px;background:transparent;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--txt-dim);font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.1em;cursor:pointer;
  transition:color var(--t-fast) ease,border-color var(--t-fast) ease,background var(--t-fast) ease;
}
.filter-btn:hover{color:var(--c-cyan);border-color:var(--c-cyan)}
.filter-btn[aria-pressed="true"]{background:var(--c-cyan);border-color:var(--c-cyan);color:#04120d;font-weight:700}
[data-filtered-out]{display:none !important}
.filter-empty{
  display:none;padding:18px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.08em;color:var(--txt-faint);
}
.filter-empty[data-empty-visible]{display:block}

.reveal{opacity:1}
[data-js] .reveal{
  opacity:0;transform:translateY(8px);
  transition:opacity var(--t-slow) ease,transform var(--t-slow) ease;
}
[data-js] .reveal.is-in{opacity:1;transform:none}

.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;border:1px solid var(--line-soft);border-radius:var(--radius);
  background:
    linear-gradient(135deg,rgba(13,42,33,1),rgba(6,18,14,1));
}
.media-frame > img,
.media-frame > picture > img{display:block;width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,18,14,0) 42%,rgba(6,18,14,.72) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-caption{margin:8px 0 0;font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.06em;color:var(--txt-faint)}

/* ---------- 7. 刊头 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,18,14,.92);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.header-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;z-index:2;
  display:block;background:linear-gradient(90deg,var(--c-cyan),var(--c-orange));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform var(--t-fast) linear;
}
.header-inner{
  position:relative;width:100%;max-width:var(--wrap);margin:0 auto;
  padding:20px var(--gutter) 0;
}
.masthead{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  padding-bottom:16px;
  transition:padding var(--t-mid) ease;
}
.masthead-note{
  grid-column:1;grid-row:1;margin:0;justify-self:start;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.16em;
  color:var(--txt-faint);
  transition:opacity var(--t-mid) ease;
}
.brand{
  grid-column:2;grid-row:1;justify-self:center;
  display:inline-flex;align-items:baseline;gap:10px;
}
.brand-mark{
  font-family:var(--font-display);font-weight:900;font-stretch:87%;
  font-size:30px;line-height:1;letter-spacing:.06em;color:var(--c-mist);
  transition:color var(--t-fast) ease,font-size var(--t-mid) ease;
}
.brand:hover .brand-mark{color:var(--c-cyan)}
.brand-ver{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--c-cyan);border:1px solid rgba(47,233,198,.5);
  padding:3px 6px;border-radius:var(--radius);white-space:nowrap;
}
.header-actions{
  grid-column:3;grid-row:1;justify-self:end;
  display:flex;align-items:center;gap:8px;
}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 12px;background:transparent;
  border:1px solid var(--line-strong);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.12em;
  cursor:pointer;transition:border-color var(--t-fast) ease,color var(--t-fast) ease;
}
.nav-toggle:hover{border-color:var(--c-cyan);color:var(--c-cyan)}
.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;width:16px;height:1.5px;background:currentColor;
  transition:transform var(--t-fast) ease,top var(--t-fast) ease;
}
.nav-toggle-bars::before{top:1px}
.nav-toggle-bars::after{top:8px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4.5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:4.5px;transform:rotate(-45deg)}

.site-nav{border-top:1px solid var(--line-soft)}
.nav-list{display:flex;justify-content:center;align-items:stretch;gap:2px}
.nav-item{display:flex}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:14px 18px 13px;
  font-family:var(--font-display);font-weight:800;font-stretch:87%;
  font-size:15px;letter-spacing:.06em;color:rgba(237,244,241,.78);
  transition:color var(--t-fast) ease;
}
.nav-num{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:rgba(47,233,198,.55)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--c-cyan);
  transform:scaleX(0);transform-origin:50% 50%;
  transition:transform var(--t-mid) ease;
}
.nav-link:hover{color:var(--c-mist)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--c-cyan)}
.nav-link[aria-current="page"] .nav-num{color:var(--c-orange)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.site-header[data-compact] .header-inner{padding-top:10px}
.site-header[data-compact] .masthead{padding-bottom:8px}
.site-header[data-compact] .brand-mark{font-size:23px}
.site-header[data-compact] .masthead-note{opacity:0}

/* ---------- 8. 左侧栏目轨道 ---------- */
.rail{display:none}
.rail-list{display:flex;flex-direction:column;gap:4px}
.rail-link{
  display:inline-block;
  padding:12px 7px;
  writing-mode:vertical-rl;text-orientation:mixed;
  border-left:2px solid transparent;border-radius:0 var(--radius) var(--radius) 0;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.22em;
  color:rgba(237,244,241,.55);
  transition:color var(--t-fast) ease,background var(--t-fast) ease,border-color var(--t-fast) ease;
}
.rail-num{margin-inline-end:.5em;color:rgba(47,233,198,.75);font-size:11px}
.rail-link:hover{color:var(--c-mist);background:rgba(47,233,198,.07)}
.rail-link[aria-current="page"]{color:var(--c-cyan);border-left-color:var(--c-cyan);background:rgba(47,233,198,.08)}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  margin-top:64px;background:var(--c-char);
  border-top:1px solid var(--line);color:rgba(237,244,241,.8);
}
.footer-inner{
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:48px var(--gutter) 32px;
  display:grid;grid-template-columns:minmax(220px,1.15fr) minmax(360px,2fr) minmax(240px,1.25fr);
  gap:40px;
}
.footer-wordmark{
  margin:0 0 10px;font-family:var(--font-display);font-weight:900;font-stretch:87%;
  font-size:24px;line-height:1.1;letter-spacing:.04em;color:var(--c-mist);
}
.footer-ver{
  margin:0 0 16px;font-family:var(--font-mono);font-size:var(--fs-12);
  letter-spacing:.1em;color:var(--c-cyan);
}
.footer-note{margin:14px 0 0;font-size:13px;line-height:1.7;color:var(--txt-faint);max-width:52ch}
.footer-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.footer-group{padding-left:20px;border-left:1px solid var(--line-soft)}
.footer-title{
  margin:0 0 14px;font-family:var(--font-mono);font-weight:500;font-stretch:normal;
  font-size:var(--fs-12);line-height:1.2;letter-spacing:.18em;
  text-transform:uppercase;color:var(--c-cyan);
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{
  font-size:14.5px;color:rgba(237,244,241,.72);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast) ease,border-color var(--t-fast) ease;
}
.footer-links a:hover{color:var(--c-mist);border-bottom-color:rgba(47,233,198,.5)}
.contact-list{display:grid;gap:13px}
.contact-key{
  display:block;margin-bottom:3px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:rgba(47,233,198,.7);
}
.contact-val{font-size:14px;color:var(--c-mist);word-break:break-word}
.contact-val.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.footer-legal{border-top:1px solid var(--line)}
.footer-legal-inner{
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:16px var(--gutter) 22px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;
  font-family:var(--font-mono);font-size:var(--fs-12);letter-spacing:.08em;color:var(--txt-faint);
}

/* ---------- 10. 响应式 ---------- */
@media (min-width:1360px){
  .rail{
    display:block;position:fixed;left:14px;top:50%;z-index:60;
    transform:translateY(-50%);
  }
}

@media (max-width:1100px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px}
  .footer-contact{grid-column:1 / -1;border-top:1px solid var(--line-soft);padding-top:28px}
}

@media (max-width:1000px){
  .col-3,.col-4,.col-5{grid-column:span 6}
  .col-6,.col-7,.col-8,.col-9{grid-column:span 12}
  .section{padding:44px 0}
}

@media (max-width:860px){
  body{padding-bottom:54px}
  .header-inner{padding:14px var(--gutter) 0}
  .masthead{grid-template-columns:1fr auto;gap:12px;padding-bottom:12px}
  .masthead-note{display:none}
  .brand{grid-column:1;grid-row:1;justify-self:start;gap:8px}
  .brand-mark{font-size:22px}
  .nav-toggle{display:inline-flex;grid-column:2;grid-row:1;justify-self:end}
  .header-actions{
    position:fixed;left:0;right:0;bottom:0;z-index:80;
    grid-column:1 / -1;
    display:grid;grid-template-columns:1fr 1fr;gap:0;
    background:var(--c-char);border-top:1px solid var(--line);
    box-shadow:0 -14px 30px -22px rgba(0,0,0,.95);
  }
  .header-actions .btn{
    border:0;border-radius:0;padding:15px 8px;font-size:var(--fs-13);letter-spacing:.1em;
  }
  .header-actions .btn:hover{transform:none;background:rgba(47,233,198,.08)}
  .header-actions .btn-solid:hover{background:#ff9350}
  .site-nav{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none}
  .site-nav::-webkit-scrollbar{display:none}
  .nav-list{justify-content:flex-start;padding:0 8px}
  .nav-link{padding:12px;font-size:14px;white-space:nowrap}
  .site-nav[data-open]{overflow:visible}
  .site-nav[data-open] .nav-list{flex-direction:column;padding:4px 12px 12px;gap:0}
  .site-nav[data-open] .nav-item{width:100%}
  .site-nav[data-open] .nav-link{
    width:100%;justify-content:flex-start;padding:13px 6px;
    border-bottom:1px solid var(--line-soft);
  }
  .site-nav[data-open] .nav-link::after{display:none}
  .section{padding:36px 0}
  .footer-inner{grid-template-columns:1fr;gap:30px;padding:36px var(--gutter) 26px}
  .footer-groups{grid-template-columns:1fr 1fr;gap:24px 0}
  .footer-group{padding-left:16px}
  .footer-contact{padding-top:24px}
  .footer-legal-inner{flex-direction:column;gap:8px}
}

@media (max-width:640px){
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9{grid-column:span 12}
  .grid-12{gap:18px}
  .lede{font-size:var(--fs-16)}
  .footer-groups{grid-template-columns:1fr}
  .footer-group{border-left:0;padding-left:0;border-top:1px solid var(--line-soft);padding-top:18px}
  .index-item{grid-template-columns:36px minmax(0,1fr)}
  .index-item .index-tail{grid-column:2}
}

/* ---------- 11. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-js] .reveal{opacity:1;transform:none}
  .header-progress{transition:none}
}