/* ============================================================
   6688体育入口 · 共享样式表 /assets/site.css
   夜场转播控制室 × 赛后数据回放室
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0B1412;
  --deep:#12241F;
  --deep-2:#0E1D19;
  --paper:#F1EBDF;
  --signal:#C9FF3F;
  --data:#46D6E6;
  --line:#2C3E38;
  --muted:#9DB2AA;
  --snow:#F5F8F6;
  --amber:#E5B04A;
  --pulse:#FF5F7E;

  --font-display:"Archivo Narrow","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-data:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;

  --gutter:clamp(18px,4vw,48px);
  --maxw:1360px;
  --line-w:2px;

  --shadow-hard:6px 6px 0 rgba(0,0,0,.42);
  --dur:.24s;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. 重置 ---------- */
*,
*::before,
*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body,
h1,h2,h3,h4,h5,h6,
p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd,address{
  margin:0;
  padding:0;
}

ul,ol{list-style:none;}
img,picture,svg,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}

/* ---------- 3. 基础排版 ---------- */
body{
  background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(18,36,31,.6),rgba(11,20,18,0) 460px);
  color:var(--snow);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.01em;
}

h1{font-size:clamp(2.6rem,7vw,5.6rem);}
h2{font-size:clamp(1.6rem,3vw,2.4rem);}
h3{font-size:1.15rem;font-weight:600;line-height:1.35;letter-spacing:0;}
h4{font-size:1rem;font-weight:600;letter-spacing:.02em;}

p{max-width:42ch;}

::selection{background:var(--signal);color:var(--ink);}

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

.mono,
.stat-value{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.label{
  display:inline-block;
  font-family:var(--font-data);
  font-size:13px;
  letter-spacing:.08em;
  line-height:1.4;
  color:var(--muted);
  border:1px solid var(--line);
  padding:3px 9px;
}

/* ---------- 4. 布局基元 ---------- */
.wrap{
  width:min(calc(100% - var(--gutter) * 2),var(--maxw));
  margin-inline:auto;
}

.section{padding:clamp(40px,7vw,96px) 0;}

.band{
  background:var(--deep);
  border-top:var(--line-w) solid var(--line);
  border-bottom:var(--line-w) solid var(--line);
  padding:clamp(22px,3.6vw,42px) 0;
}

.band--signal{border-color:var(--signal);}

.ticks{
  height:8px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 2px,transparent 2px 16px);
}

.rule-slant{
  position:relative;
  height:2px;
  background:var(--line);
}

.rule-slant::after{
  content:"";
  position:absolute;
  left:0;
  top:-1px;
  width:min(200px,32%);
  height:5px;
  background:var(--signal);
  transform:skewX(-35deg);
}

.grid{display:grid;gap:clamp(18px,2.5vw,32px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr));}

/* ---------- 5. 面板与材质 ---------- */
.panel{
  background:var(--deep);
  border:var(--line-w) solid var(--line);
  padding:clamp(20px,3vw,34px);
  box-shadow:var(--shadow-hard);
}

.panel--data{border-color:var(--data);}
.panel--signal{border-color:var(--signal);}

.paper{
  background:var(--paper);
  color:#16211D;
  border:var(--line-w) solid var(--line);
  box-shadow:8px 8px 0 rgba(0,0,0,.42);
  padding:clamp(22px,3vw,40px);
}

.paper h2,
.paper h3{color:#0E1A17;}
.paper a{color:#14606B;border-bottom:1px solid rgba(20,96,107,.4);}
.paper a:hover{border-bottom-color:#14606B;}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 24px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:15px;
  letter-spacing:.06em;
  line-height:1;
  border:var(--line-w) solid var(--signal);
  background:var(--signal);
  color:var(--ink);
  box-shadow:5px 5px 0 rgba(0,0,0,.45);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),
             background-color .16s var(--ease),color .16s var(--ease),
             border-color .16s var(--ease);
}

.btn:hover,
.btn:focus-visible{
  transform:translate(-2px,-2px);
  box-shadow:8px 8px 0 rgba(0,0,0,.5);
}

.btn--ghost{
  background:transparent;
  color:var(--snow);
  border-color:var(--line);
  box-shadow:5px 5px 0 rgba(0,0,0,.35);
}

.btn--ghost:hover,
.btn--ghost:focus-visible{
  border-color:var(--data);
  color:var(--data);
}

.btn--data{
  background:transparent;
  border-color:var(--data);
  color:var(--data);
}

.btn--data:hover,
.btn--data:focus-visible{
  background:rgba(70,214,230,.14);
}

/* ---------- 7. 面包屑与正文容器 ---------- */
.breadcrumb{
  font-family:var(--font-data);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--muted);
}

.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
}

.breadcrumb li{display:flex;align-items:center;}

.breadcrumb li + li::before{
  content:"/";
  padding:0 10px;
  color:var(--line);
}

.breadcrumb a{color:var(--muted);transition:color .18s var(--ease);}
.breadcrumb a:hover,
.breadcrumb a:focus-visible{color:var(--data);}

.prose{max-width:44rem;}

.prose > p + p,
.prose > ul + p,
.prose > p + ul{margin-top:1.1em;}

.prose h2{margin-top:2.2em;margin-bottom:.55em;}
.prose h3{margin-top:1.7em;margin-bottom:.5em;color:var(--signal);}
.prose ul{margin:1em 0;padding-left:1.2em;list-style:square;}
.prose li + li{margin-top:.4em;}

/* ---------- 8. 图片容器基元 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:var(--line-w) solid var(--line);
  background:var(--deep);
}

.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.05);
}

.media--16x9{aspect-ratio:16 / 9;}
.media--4x3{aspect-ratio:4 / 3;}
.media--3x2{aspect-ratio:3 / 2;}
.media--1x1{aspect-ratio:1 / 1;}
.media--3x4{aspect-ratio:3 / 4;}

.media__tag{
  position:absolute;
  left:0;
  bottom:0;
  background:var(--signal);
  color:var(--ink);
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.06em;
  padding:5px 11px;
}

.media__frame{
  position:absolute;
  inset:10px;
  border:1px solid rgba(70,214,230,.5);
  pointer-events:none;
}

/* ---------- 9. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-120px;
  z-index:200;
  display:inline-block;
  background:var(--signal);
  color:var(--ink);
  font-family:var(--font-display);
  font-weight:800;
  font-size:15px;
  letter-spacing:.06em;
  padding:11px 20px;
  border:var(--line-w) solid var(--ink);
  transition:top .18s var(--ease);
}

.skip-link:focus{top:14px;}

/* ---------- 10. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--deep);
  border-bottom:var(--line-w) solid var(--line);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}

.site-header[data-scrolled]{
  background:var(--deep-2);
  box-shadow:0 8px 0 rgba(0,0,0,.3);
}

.header-frame{
  width:min(calc(100% - var(--gutter) * 2),var(--maxw));
  margin-inline:auto;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(14px,3vw,40px);
  padding:14px 0;
  transition:padding .2s var(--ease);
}

.site-header[data-scrolled] .header-inner{padding:9px 0;}

.brand{
  display:flex;
  align-items:baseline;
  gap:14px;
  min-width:0;
}

.brand-link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:22px;
  letter-spacing:.02em;
  color:var(--snow);
  white-space:nowrap;
}

.brand-mark{
  display:inline-block;
  background:var(--signal);
  color:var(--ink);
  font-family:var(--font-data);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1;
  padding:5px 8px;
}

.brand-name{font-weight:800;}

.brand-motto{
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--muted);
  border-left:1px solid var(--line);
  padding-left:14px;
  max-width:none;
  white-space:nowrap;
}

.site-header[data-scrolled] .brand-motto{opacity:.72;}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  border:var(--line-w) solid var(--line);
  padding:9px 13px;
  font-family:var(--font-data);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--snow);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}

.nav-toggle-bars{
  display:grid;
  gap:4px;
  width:18px;
}

.nav-toggle-bars span{
  display:block;
  height:2px;
  background:currentColor;
}

.nav-toggle[aria-expanded="true"]{
  border-color:var(--signal);
  color:var(--signal);
}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,32px);
}

.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.8vw,26px);
}

.nav-list a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-family:var(--font-display);
  font-weight:600;
  font-size:15px;
  letter-spacing:.05em;
  color:var(--muted);
  transition:color .18s var(--ease);
}

.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}

.nav-list a:hover,
.nav-list a:focus-visible{color:var(--snow);}

.nav-list a:hover::after,
.nav-list a:focus-visible::after{transform:scaleX(1);}

.nav-list a[aria-current="page"]{color:var(--snow);}

.nav-list a[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--signal);
}

.nav-tools{
  display:flex;
  align-items:center;
  gap:12px;
}

.nav-entry{
  display:inline-flex;
  align-items:center;
  background:var(--signal);
  color:var(--ink);
  border:var(--line-w) solid var(--signal);
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  letter-spacing:.06em;
  line-height:1;
  padding:10px 15px;
  box-shadow:3px 3px 0 rgba(70,214,230,.5);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease);
}

.nav-entry:hover,
.nav-entry:focus-visible{
  transform:translate(-2px,-2px);
  box-shadow:5px 5px 0 var(--data);
}

.nav-search{
  font-family:var(--font-data);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--data);
  border:1px dashed var(--data);
  padding:9px 11px;
  transition:background-color .18s var(--ease);
}

.nav-search:hover,
.nav-search:focus-visible{background:rgba(70,214,230,.14);}

.header-scale{
  height:5px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 2px,transparent 2px 14px);
}

.header-progress{
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:3px;
  background:var(--signal);
  transform:scaleX(0);
  transform-origin:left center;
  opacity:0;
  transition:opacity .2s var(--ease);
}

.header-progress[data-visible]{opacity:1;}

/* ---------- 11. 页脚 ---------- */
.site-footer{
  background:var(--deep);
  border-top:var(--line-w) solid var(--line);
  margin-top:clamp(48px,8vw,110px);
  color:var(--muted);
  font-size:15px;
}

.footer-frame{
  width:min(calc(100% - var(--gutter) * 2),var(--maxw));
  margin-inline:auto;
  padding:clamp(40px,6vw,76px) 0 26px;
  display:grid;
  gap:clamp(32px,4.5vw,56px);
}

.footer-top,
.footer-index{
  display:grid;
  gap:clamp(28px,4vw,52px);
  grid-template-columns:minmax(240px,1.2fr) minmax(0,1fr) minmax(0,1fr);
}

.footer-index{
  border-top:var(--line-w) solid var(--line);
  padding-top:clamp(28px,4vw,46px);
}

.footer-brand-link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:24px;
  letter-spacing:.02em;
  color:var(--snow);
}

.footer-motto{
  margin-top:16px;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--signal);
  max-width:none;
}

.footer-note{
  margin-top:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  max-width:34ch;
}

.footer-heading{
  font-family:var(--font-data);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--amber);
  padding-bottom:9px;
  margin-bottom:16px;
  border-bottom:1px solid var(--line);
}

.footer-list li + li{margin-top:9px;}

.footer-list a{
  color:var(--muted);
  font-size:15px;
  transition:color .18s var(--ease);
}

.footer-list a:hover,
.footer-list a:focus-visible{color:var(--signal);}

.footer-list--version li + li{margin-top:8px;}

.version-item{
  display:flex;
  align-items:baseline;
  gap:11px;
  font-size:14px;
  line-height:1.6;
  color:var(--muted);
}

.version-tag{
  flex:none;
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--amber);
  border:1px solid var(--line);
  padding:1px 7px;
}

.version-note{min-width:0;}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 30px;
  border-top:var(--line-w) solid var(--line);
  padding-top:22px;
  font-size:13px;
  color:var(--muted);
}

.legal-icp{
  font-family:var(--font-data);
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--muted);
  max-width:none;
}

.legal-contact{
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
  font-style:normal;
  font-family:var(--font-data);
  font-size:12.5px;
  letter-spacing:.03em;
}

.legal-item{white-space:nowrap;}

.legal-copy{
  font-family:var(--font-data);
  font-size:12.5px;
  letter-spacing:.04em;
  max-width:none;
}

/* ---------- 12. 滚动显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity var(--dur) var(--ease) var(--reveal-delay,0ms),
             transform var(--dur) var(--ease) var(--reveal-delay,0ms);
}

[data-reveal="in"]{
  opacity:1;
  transform:none;
}

@media (scripting: none){
  [data-reveal]{opacity:1;transform:none;}
}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1180px){
  .nav-search{display:none;}
}

@media (max-width:1024px){
  .footer-top,
  .footer-index{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex;}
  .brand-motto{display:none;}

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--deep);
    border-top:var(--line-w) solid var(--line);
    border-bottom:var(--line-w) solid var(--line);
    padding:6px var(--gutter) 26px;
    max-height:calc(100vh - 76px);
    overflow-y:auto;
  }

  .site-nav[data-open]{display:flex;}

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }

  .nav-list li{border-bottom:1px solid var(--line);}

  .nav-list a{
    display:block;
    padding:15px 0;
    font-size:18px;
    letter-spacing:.03em;
  }

  .nav-list a::after{display:none;}

  .nav-list a[aria-current="page"]{color:var(--signal);}

  .nav-tools{
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    margin-top:20px;
  }

  .nav-entry{
    justify-content:center;
    padding:14px 16px;
    font-size:15px;
  }

  .nav-search{
    display:block;
    text-align:center;
    padding:12px;
  }

  .grid--3{grid-template-columns:minmax(0,1fr);}
  .grid--2{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:640px){
  body{font-size:16px;}

  .footer-top,
  .footer-index{grid-template-columns:minmax(0,1fr);}

  .footer-legal{flex-direction:column;align-items:flex-start;}

  .legal-contact{flex-direction:column;gap:6px;}

  .media__frame{inset:6px;}

  .btn{width:100%;justify-content:center;}
}

/* ---------- 14. 降级动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }

  [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }

  .btn:hover,
  .btn:focus-visible,
  .nav-entry:hover,
  .nav-entry:focus-visible{transform:none;}
}