/* =========================================================
   华体会体育主站 · 共享 Site Kit
   深墨蓝数据舱 / 荧光青操作态 / 信号橙告警 / 联赛语义色条
   ========================================================= */

/* ---------- 0. Design Tokens ---------- */
:root{
  --ink:#07111F;
  --ink-deep:#04101C;
  --panel:#0D1F33;
  --line:#1C3A52;
  --paper:#F4F8FB;
  --mist:#91A6B8;
  --cyan:#3DF5D0;
  --orange:#FF7A1A;
  --epl:#7B4DFF;
  --laliga:#FF3B5C;
  --seriea:#2F80FF;
  --ok:#29D68B;

  --wrap:1280px;
  --gutter:clamp(18px,4.2vw,56px);
  --header-h:74px;
  --shadow-hard:6px 6px 0 0 var(--line);
  --shadow-pop:4px 4px 0 0 var(--line);

  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 1. 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,figcaption,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. Base Typography ---------- */
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-weight:900;line-height:1.15;letter-spacing:-.02em}
p{word-break:break-word}
::selection{background:var(--cyan);color:var(--ink-deep)}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
a:focus-visible,
button:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

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

/* ---------- 3. Skip Link ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-72px;
  z-index:300;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink-deep);
  font-weight:800;
  font-size:14px;
  letter-spacing:.04em;
  border:2px solid var(--ink-deep);
  transition:top .18s ease;
}
.skip-link:focus{top:12px}

/* ---------- 4. Scroll Rail ---------- */
.scroll-rail{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:130;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
  will-change:transform;
}

/* ---------- 5. Header ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:linear-gradient(180deg,rgba(7,17,31,.94),rgba(7,17,31,0));
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header[data-stuck],
.site-header[data-nav-open]{
  background:var(--panel);
  border-bottom-color:var(--line);
  box-shadow:0 10px 28px rgba(3,10,19,.55);
}

.header-inner{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
  height:100%;
  display:flex;
  align-items:center;
  gap:clamp(12px,2.2vw,30px);
}

/* brand */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  min-width:0;
}
.brand-mark{
  position:relative;
  width:34px;height:34px;
  flex:0 0 auto;
  background:var(--ink-deep);
  border:2px solid var(--cyan);
  box-shadow:inset 0 0 0 3px var(--ink-deep),inset 0 0 0 5px rgba(61,245,208,.28);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:3px;bottom:3px;
  width:8px;height:8px;
  background:var(--orange);
}
.brand:hover .brand-mark{
  border-color:var(--paper);
  box-shadow:inset 0 0 0 3px var(--ink-deep),inset 0 0 0 5px rgba(61,245,208,.6);
}
.brand-text{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.15;
  min-width:0;
}
.brand-name{
  font-size:17px;
  font-weight:900;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
  white-space:nowrap;
}

/* nav */
.nav{
  display:flex;
  align-items:center;
  margin-inline:auto;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.6vw,24px);
}
.nav-item{display:block}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 2px;
  font-size:14px;
  font-weight:600;
  color:var(--mist);
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--paper)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-idx{
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--cyan);
  opacity:.6;
}
.nav-link[aria-current="page"] .nav-idx{opacity:1}

.nav-foot{display:none}

/* actions */
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  padding:0;
  background:var(--ink-deep);
  border:2px solid var(--line);
  cursor:pointer;
  transition:border-color .18s ease,background-color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle-bar{
  display:block;
  width:20px;height:2px;
  margin:4px auto;
  background:var(--paper);
  transition:transform .2s ease,opacity .16s ease;
}
.site-header[data-nav-open] .nav-toggle{border-color:var(--cyan)}
.site-header[data-nav-open] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-nav-open] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-nav-open] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 6. Buttons ---------- */
.btn{
  --btn-bg:transparent;
  --btn-fg:var(--paper);
  --btn-bd:var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:13px 22px;
  background:var(--btn-bg);
  color:var(--btn-fg);
  border:2px solid var(--btn-bd);
  border-radius:0;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:800;
  line-height:1;
  letter-spacing:.04em;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{
  transform:translate(-2px,-2px);
  box-shadow:var(--shadow-pop);
}
.btn:active{transform:translate(0,0);box-shadow:none}
.btn-primary{
  --btn-bg:var(--orange);
  --btn-fg:#09131F;
  --btn-bd:var(--orange);
}
.btn-primary:hover{
  --btn-bg:#FF9040;
  --btn-bd:#FF9040;
}
.btn-ghost{
  --btn-bg:transparent;
  --btn-fg:var(--cyan);
  --btn-bd:rgba(61,245,208,.5);
}
.btn-ghost:hover{
  --btn-fg:var(--cyan);
  --btn-bd:var(--cyan);
}
.btn-sm{
  padding:10px 15px;
  font-size:13px;
  letter-spacing:.02em;
}

/* ---------- 7. Layout Primitives ---------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.page-offset{padding-top:calc(var(--header-h) + 16px)}
.section{padding-block:clamp(48px,7vw,96px)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px 32px;
  margin-bottom:clamp(24px,3vw,40px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--cyan);
}
.section-title{
  font-size:clamp(26px,4vw,44px);
  font-weight:900;
  line-height:1.12;
  letter-spacing:-.02em;
}
.lede{
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  color:var(--mist);
  max-width:62ch;
}
.rule{
  height:2px;
  background:var(--line);
  border:0;
  margin:0;
}

/* ---------- 8. Panels / Cards ---------- */
.panel{
  background:var(--panel);
  border:2px solid var(--line);
  box-shadow:var(--shadow-hard);
  padding:clamp(18px,2.4vw,28px);
}
.panel-title{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.35;
}
.panel-meta{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}

/* ---------- 9. Tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  background:rgba(28,58,82,.42);
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(61,245,208,.45);background:rgba(61,245,208,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,26,.5);background:rgba(255,122,26,.08)}

/* ---------- 10. Stats ---------- */
.stat{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-width:0;
}
.stat-value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(28px,5vw,56px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--paper);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}

/* ---------- 11. Grids ---------- */
.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.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))}

/* ---------- 12. Media Frame ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:2px solid var(--line);
  background:
    linear-gradient(135deg,var(--panel),var(--ink-deep) 70%),
    repeating-linear-gradient(90deg,rgba(28,58,82,.5) 0 1px,transparent 1px 40px);
  box-shadow:var(--shadow-hard);
}
.media-frame__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--mist);
}

/* ---------- 13. Breadcrumb ---------- */
.breadcrumb{
  padding-block:16px;
  border-bottom:1px solid var(--line);
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mist);
}
.breadcrumb-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.breadcrumb-item + .breadcrumb-item::before{
  content:"/";
  color:var(--line);
}
.breadcrumb-link{color:var(--mist);transition:color .16s ease}
.breadcrumb-link:hover{color:var(--cyan)}
.breadcrumb-current{color:var(--paper)}

/* ---------- 14. Prose ---------- */
.prose{
  font-size:16px;
  line-height:1.8;
  color:rgba(244,248,251,.86);
  max-width:72ch;
}
.prose h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:900;
  letter-spacing:-.02em;
  margin:2em 0 .6em;
  color:var(--paper);
}
.prose h3{
  font-size:18px;
  font-weight:800;
  margin:1.7em 0 .5em;
  color:var(--paper);
}
.prose p{margin:0 0 1.1em}
.prose ul{margin:0 0 1.2em;padding:0}
.prose li{
  position:relative;
  padding-left:20px;
  margin-bottom:.5em;
  list-style:none;
}
.prose li::before{
  content:"";
  position:absolute;
  left:0;top:.75em;
  width:8px;height:2px;
  background:var(--cyan);
}
.prose a{
  color:var(--cyan);
  border-bottom:1px solid rgba(61,245,208,.4);
}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose strong{color:var(--paper);font-weight:800}

/* ---------- 15. Status Dot ---------- */
.status-dot{
  display:inline-block;
  width:8px;height:8px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 0 0 rgba(255,122,26,.55);
  animation:pulseDot 2s ease-in-out infinite;
}
.status-dot--ok{
  background:var(--ok);
  box-shadow:0 0 0 0 rgba(41,214,139,.55);
  animation-name:pulseDotOk;
}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 0 rgba(255,122,26,.55)}
  50%{box-shadow:0 0 0 6px rgba(255,122,26,0)}
}
@keyframes pulseDotOk{
  0%,100%{box-shadow:0 0 0 0 rgba(41,214,139,.55)}
  50%{box-shadow:0 0 0 6px rgba(41,214,139,0)}
}

/* ---------- 16. Footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,120px);
  background-color:var(--ink-deep);
  border-top:2px solid var(--line);
  background-image:
    repeating-linear-gradient(90deg,rgba(28,58,82,.26) 0 1px,transparent 1px 68px),
    repeating-linear-gradient(0deg,rgba(28,58,82,.26) 0 1px,transparent 1px 68px);
}
.footer-inner{
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.35fr;
  gap:clamp(28px,4vw,56px);
  padding-bottom:clamp(30px,4vw,48px);
}
.footer-brand{min-width:0}
.footer-brand-line{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.25;
}
.footer-brand-sub{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-note{
  margin-top:14px;
  max-width:36ch;
  font-size:14px;
  line-height:1.7;
  color:var(--mist);
}
.footer-h{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-link{
  width:fit-content;
  font-size:14px;
  color:var(--paper);
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-link:hover{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.footer-link--sm{font-size:12px}
.footer-contact{min-width:0}
.contact-line{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:10px 0;
  border-bottom:1px dashed rgba(28,58,82,.9);
}
.contact-line:first-of-type{padding-top:0}
.contact-label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.contact-value{
  font-size:14px;
  line-height:1.6;
  color:var(--paper);
  word-break:break-word;
}

/* feedback band */
.footer-feedback{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px 24px;
  margin:0 0 clamp(28px,4vw,44px);
  padding:20px clamp(18px,2.4vw,28px);
  background:linear-gradient(90deg,rgba(255,122,26,.16),rgba(13,31,51,.92) 58%);
  border:2px solid rgba(255,122,26,.55);
  box-shadow:var(--shadow-pop);
}
.footer-feedback::before{
  content:"";
  position:absolute;
  left:-2px;top:-2px;bottom:-2px;
  width:4px;
  background:var(--orange);
}
.feedback-copy{flex:1 1 320px;min-width:0}
.feedback-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--paper);
}
.feedback-note{
  margin-top:6px;
  font-size:13px;
  line-height:1.6;
  color:var(--mist);
}
.feedback-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* footer base */
.footer-base{
  border-top:1px solid var(--line);
  padding:18px var(--gutter) 26px;
}
.footer-base-inner{
  max-width:var(--wrap);
  margin:0 auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  font-size:12px;
  color:var(--mist);
}
.footer-copy{font-family:var(--font-mono);letter-spacing:.04em}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px}
.footer-icp{
  font-family:var(--font-mono);
  letter-spacing:.06em;
  color:var(--mist);
}

/* ---------- 17. Responsive : Tablet & Mobile Nav ---------- */
@media (max-width:960px){
  :root{--header-h:64px}

  .nav-toggle{display:block}

  .nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    margin:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    padding:16px var(--gutter) 32px;
    background:rgba(7,17,31,.985);
    border-top:1px solid var(--line);
    overflow-y:auto;
    overscroll-behavior:contain;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .2s ease,transform .24s ease,visibility .2s ease;
  }
  .nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    width:100%;
  }
  .nav-item + .nav-item{border-top:1px solid var(--line)}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    gap:12px;
    padding:18px 2px;
    font-size:20px;
    font-weight:800;
    color:var(--paper);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--cyan)}
  .nav-idx{font-size:11px;letter-spacing:.16em;opacity:.75}

  .nav-foot{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 16px;
    margin-top:auto;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .nav-foot-note{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--mist);
  }
  .nav-foot-link{
    font-size:13px;
    font-weight:700;
    color:var(--cyan);
    border-bottom:1px solid rgba(61,245,208,.45);
  }

  html.nav-locked{overflow:hidden}

  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-note{max-width:56ch}
}

@media (max-width:620px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-feedback{flex-direction:column;align-items:flex-start}
  .feedback-actions{width:100%}
  .feedback-actions .btn{flex:1 1 auto}
  .footer-base-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .media-frame{box-shadow:var(--shadow-pop)}
}

@media (max-width:520px){
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .brand-mark{width:28px;height:28px}
  .header-actions .btn{padding:9px 12px;font-size:12px;letter-spacing:.01em}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 18. Reduced Motion ---------- */
@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-rail{transition:none}
  .btn:hover{transform:none;box-shadow:none}
}