/* ============================================================
   YOBET体育 · CN 中文站  /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:150px;
}
body{margin:0;min-height:100vh}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[id]{scroll-margin-top:150px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:0}

/* ---------- 2. 变量 ---------- */
:root{
  --ink:#0A0E27;
  --panel:#141B44;
  --line:#242E63;
  --line-soft:rgba(36,46,99,.45);
  --cyan:#2CF2E0;
  --orange:#FF6A1A;
  --white:#EEF2FF;
  --muted:#98A3CC;
  --pos:#2BE08A;
  --neg:#FF4D5E;
  --zebra:#1C2450;

  --font-display:"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",Georgia,"SimSun",serif;
  --font-body:"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --maxw:1320px;
  --gutter:24px;
}

/* ---------- 3. 基础排版与蓝图底纹 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--white);
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,var(--line-soft) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-soft) 1px,transparent 1px);
  background-size:48px 48px;
  background-position:-1px -1px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--cyan);color:var(--ink)}
h1,h2,h3{font-family:var(--font-serif);font-weight:600;line-height:1.35}
strong{font-weight:600}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.muted{color:var(--muted)}
.rule{border:0;height:1px;background:var(--line);margin:40px 0}

/* ---------- 4. 容器与网格 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.container--narrow{max-width:920px}
.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}

/* ---------- 5. 框景 · 刻度 · 图片容器 ---------- */
.frame-block{
  position:relative;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(20,27,68,.62),rgba(10,14,39,.24));
  padding:28px;
}
.frame-block::before{
  content:"";
  position:absolute;
  inset:7px;
  border:1px dashed rgba(36,46,99,.75);
  pointer-events:none;
}
.ticked{position:relative}
.ticked::before,.ticked::after{
  content:"";
  position:absolute;
  width:11px;height:11px;
  pointer-events:none;
}
.ticked::before{top:-1px;left:-1px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan)}
.ticked::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--cyan);border-right:2px solid var(--cyan)}

.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.86) contrast(1.08) brightness(.9);
  transition:transform .5s ease;
}
.media-frame:hover img{transform:scale(1.02)}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--portrait{aspect-ratio:3/4}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__caption{
  position:absolute;
  left:0;bottom:0;
  max-width:100%;
  padding:6px 10px;
  background:rgba(10,14,39,.82);
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--muted);
}

/* ---------- 6. 内容块组件 ---------- */
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  padding-bottom:12px;
  margin-bottom:24px;
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--orange);
}
.section-title{
  margin-top:6px;
  font-family:var(--font-serif);
  font-size:clamp(20px,2.4vw,28px);
  font-weight:600;
  color:var(--white);
}

.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:20px;
}
.card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:20px;
  transition:border-color .18s ease,transform .18s ease;
}
.card::before{
  content:"";
  position:absolute;
  left:-1px;top:-1px;bottom:-1px;
  width:2px;
  background:transparent;
  transition:background .12s ease;
}
.card:hover{border-color:rgba(44,242,224,.5)}
.card:hover::before{background:var(--cyan)}

.stat{display:block}
.stat__value{
  display:block;
  font-family:var(--font-display);
  font-weight:900;
  font-style:italic;
  font-size:clamp(36px,6vw,72px);
  line-height:1;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--white);
}
.stat__value--cyan{color:var(--cyan)}
.stat__label{
  display:block;
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
}

.data-table{font-size:14px;font-variant-numeric:tabular-nums}
.data-table th{
  padding:10px 12px;
  text-align:left;
  white-space:nowrap;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.data-table td{
  padding:11px 12px;
  border-bottom:1px solid var(--line-soft);
  color:var(--white);
}
.data-table tbody tr:nth-child(even){background:var(--zebra)}
.data-table .num{text-align:right;font-family:var(--font-mono);font-variant-numeric:tabular-nums}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--muted);
}
.badge--live{border-color:var(--orange);color:var(--orange)}
.badge--ok{border-color:var(--pos);color:var(--pos)}
.badge--warn{border-color:var(--neg);color:var(--neg)}

.heat-cell{
  padding:6px 8px;
  text-align:center;
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.heat-cell--up{background:rgba(43,224,138,.16);color:var(--pos)}
.heat-cell--down{background:rgba(255,77,94,.16);color:var(--neg)}
.heat-cell--flat{color:var(--muted)}

.index-list{border-top:1px solid var(--line)}
.index-list__item{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  transition:color .15s ease,border-color .15s ease;
}
.index-list__item:hover{color:var(--cyan);border-color:var(--cyan)}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid var(--cyan);
  color:var(--cyan);
  background:transparent;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.12em;
  text-transform:uppercase;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{background:var(--cyan);color:var(--ink)}
.btn--primary{background:var(--cyan);color:var(--ink);font-weight:700}
.btn--primary:hover{background:var(--white);border-color:var(--white);color:var(--ink)}
.btn--orange{border-color:var(--orange);color:var(--orange)}
.btn--orange:hover{background:var(--orange);color:var(--ink)}
.btn--ghost{border-color:var(--line);color:var(--white)}
.btn--ghost:hover{background:transparent;border-color:var(--cyan);color:var(--cyan)}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb [aria-current="page"]{color:var(--white)}

.prose{
  max-width:74ch;
  font-size:17px;
  line-height:1.8;
  color:var(--white);
}
.prose h2{
  margin:44px 0 14px;
  font-family:var(--font-serif);
  font-size:clamp(20px,2.2vw,26px);
  color:var(--white);
}
.prose h3{margin:30px 0 10px;font-size:18px;color:var(--cyan)}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.45em}
.prose a{border-bottom:1px solid var(--cyan);color:var(--cyan)}
.prose code{
  font-family:var(--font-mono);
  font-size:.92em;
  padding:1px 5px;
  background:var(--zebra);
  border:1px solid var(--line);
}

/* ---------- 7. 头部 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-60px;
  z-index:120;
  padding:10px 16px;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  transition:top .18s ease;
}
.skip-link:focus{top:8px}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,14,39,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.header-inner{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}

.masthead{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding:14px 0 10px;
}
.masthead__brand{text-align:center}
.masthead__aside{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  min-width:0;
}
.masthead__aside--right{align-items:flex-end;text-align:right}
.meta-label{color:var(--muted)}
.meta-value{color:var(--cyan)}

.brand{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
}
.brand__mark{
  font-family:var(--font-display);
  font-weight:900;
  font-style:italic;
  font-size:26px;
  line-height:1.1;
  letter-spacing:.01em;
  color:var(--white);
}
.brand__tagline{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.42em;
  text-indent:.42em;
  color:var(--orange);
}
.brand:hover .brand__mark{color:var(--cyan)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border:1px solid var(--line);
  color:var(--muted);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:10px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:1px;
  background:currentColor;
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:50%;transform:translateY(-50%) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:50%;bottom:auto;transform:translateY(-50%) rotate(-45deg)}

.site-nav{display:block;border-top:1px solid var(--line)}
.nav-list{display:flex;justify-content:center;flex-wrap:wrap}
.nav-list__item{border-left:1px solid var(--line)}
.nav-list__item:last-child{border-right:1px solid var(--line)}
.nav-link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:12px 20px;
  transition:background .18s ease,color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:transparent;
  transition:background .18s ease;
}
.nav-link__idx{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
}
.nav-link__label{font-size:15px;font-weight:500;color:var(--white)}
.nav-link:hover .nav-link__label,
.nav-link:hover .nav-link__idx{color:var(--cyan)}
.nav-link:hover::after{background:rgba(44,242,224,.5)}
.nav-link[aria-current="page"] .nav-link__label,
.nav-link[aria-current="page"] .nav-link__idx{color:var(--cyan)}
.nav-link[aria-current="page"]::after{background:var(--cyan)}

.status-rail{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:7px 0 9px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--muted);
}
.status-rail__item{display:inline-flex;align-items:center;gap:8px}
.status-rail__link{color:var(--muted);border-bottom:1px solid var(--line)}
.status-rail__link:hover{color:var(--cyan);border-color:var(--cyan)}
.dot{display:inline-block;width:7px;height:7px;flex:none;background:var(--cyan)}
.dot--cyan{background:var(--cyan)}
.dot--orange{background:var(--orange)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(20,27,68,.55),rgba(10,14,39,.96));
}
.footer-grid{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr 1fr 2fr;
  gap:28px;
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:56px var(--gutter) 40px;
}
.footer-grid > * + *{border-left:1px solid var(--line);padding-left:28px}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.brand--footer{align-items:flex-start;gap:6px}
.brand--footer .brand__mark{font-size:22px}
.footer-note{margin:0;font-size:14px;line-height:1.7;color:var(--muted);max-width:32ch}
.footer-meta{font-size:11px;letter-spacing:.16em;color:var(--line)}
.footer-col__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--orange);
}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-link{
  display:inline-block;
  font-size:14px;
  color:var(--white);
  border-bottom:1px solid transparent;
  transition:color .15s ease,border-color .15s ease;
}
.footer-link:hover{color:var(--cyan);border-color:var(--cyan)}
.footer-link--inline{font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.contact-list{display:flex;flex-direction:column;gap:12px}
.contact-item{display:flex;flex-direction:column;gap:2px}
.contact-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.contact-value{font-size:14px;color:var(--white);overflow-wrap:anywhere}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:18px var(--gutter) 28px;
  border-top:1px solid var(--line);
}
.footer-base__text{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- 9. 滚动进度与返回顶部（JS 注入） ---------- */
.scroll-rail{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:90;
  pointer-events:none;
  background:transparent;
}
.scroll-rail__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.to-top{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:90;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:1px;
  width:54px;
  height:54px;
  border:1px solid var(--cyan);
  background:rgba(10,14,39,.92);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  transition:background .18s ease,color .18s ease;
}
.to-top:hover{background:var(--cyan);color:var(--ink)}
.to-top[hidden]{display:none}
.to-top__glyph{font-size:14px;line-height:1}
.to-top__text{line-height:1}

/* ---------- 10. 显现与复制反馈 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
.js [data-reveal="in"]{opacity:1;transform:none}
.is-copied{color:var(--pos);border-color:var(--pos)}

/* ---------- 11. 平板 ---------- */
@media (max-width:1080px){
  .nav-link{padding:11px 14px}
  .nav-link__label{font-size:14px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-grid > * + *{border-left:0;padding-left:0}
  .footer-brand{grid-column:1/-1}
  .frame-block{padding:22px}
}

/* ---------- 12. 移动 ---------- */
@media (max-width:900px){
  :root{--gutter:16px}
  html{scroll-padding-top:120px}
  .grid-12{grid-template-columns:repeat(12,minmax(0,1fr));gap:18px}
  .grid-12 > *{grid-column:span 12}

  .masthead{grid-template-columns:1fr;padding:12px 0 10px}
  .masthead__aside{display:none}
  .masthead__brand{text-align:left}
  .brand{align-items:flex-start}
  .brand__mark{font-size:19px}
  .brand__tagline{font-size:10px;letter-spacing:.3em;text-indent:.3em}
  .nav-toggle{display:inline-flex;position:absolute;right:0;top:50%;transform:translateY(-50%)}

  .site-nav{display:none;border-top:1px solid var(--line)}
  .site-nav[data-open]{display:block}
  .nav-list{flex-direction:column;flex-wrap:nowrap}
  .nav-list__item{border-left:0;border-right:0;border-bottom:1px solid var(--line)}
  .nav-list__item:last-child{border-right:0;border-bottom:0}
  .nav-link{justify-content:space-between;padding:14px 4px}
  .nav-link__label{order:1}
  .nav-link__idx{order:2}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{background:rgba(44,242,224,.08)}

  .status-rail{justify-content:flex-start;padding:8px 0 10px}
  .status-rail__link{display:none}

  .frame-block{padding:18px}
  .panel,.card{padding:16px}
  .site-footer{margin-top:64px}
  .footer-grid{grid-template-columns:1fr;padding:40px var(--gutter) 32px}
  .footer-base{padding:16px var(--gutter) 24px}
  .to-top{right:14px;bottom:14px;width:48px;height:48px}
}

/* ---------- 13. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .media-frame:hover img{transform:none}
}