/* ===== BET体育 · 共享样式 /assets/site.css ===== */

:root{
  --ink:#0C1F1A;
  --panel:#122A23;
  --panel-2:#16332A;
  --edge:#2A4438;
  --edge-soft:#3C5A4C;
  --lime:#C6F53C;
  --coral:#FF7A4D;
  --cool:#8FA6B2;
  --paper:#F2F5EF;
  --indigo:#241B3A;
  --amber:#F2B441;
  --mist:#E8EDE9;
  --claret:#7A2E3A;
  --frame-w:264px;
  --header-h:64px;
  --shadow-hard:4px 4px 0 rgba(0,0,0,.45);
  --shadow-lift:6px 6px 0 rgba(0,0,0,.5);
  --font-sans:"Helvetica Neue","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,"Courier New",monospace;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background:var(--ink);
}

body{
  margin:0;
  padding-left:var(--frame-w);
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(42,68,56,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(42,68,56,.5) 1px,transparent 1px);
  background-size:88px 88px;
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
}

:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;letter-spacing:-.012em;font-weight:700}
h1{font-size:clamp(38px,6.2vw,76px);font-weight:800}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(19px,2vw,23px)}
p{margin:0 0 1.1em}
a{color:var(--lime)}
img{max-width:100%;height:auto}
ul,ol{padding-left:1.3em}

main{display:block}
main.shell{padding-top:clamp(36px,5vw,72px);padding-bottom:clamp(56px,7vw,96px)}

.shell{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:clamp(18px,4vw,48px);
  padding-right:clamp(18px,4vw,48px);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:-120px;
  left:16px;
  z-index:300;
  padding:10px 18px;
  background:var(--lime);
  color:var(--ink);
  font-weight:700;
  text-decoration:none;
  border:2px solid var(--ink);
  transition:top .18s ease;
}
.skip-link:focus,
.skip-link:focus-visible{top:12px}

/* ---------- 框架式页头 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--frame-w);
  z-index:120;
  background:var(--panel);
  border-right:2px solid var(--edge);
  display:flex;
  flex-direction:column;
}
.site-header::after{
  content:"";
  position:absolute;
  top:0;right:-2px;bottom:auto;
  width:2px;height:100%;
  background:var(--lime);
  transform:scaleY(var(--read-progress,0));
  transform-origin:bottom center;
  pointer-events:none;
}

.site-header__inner{
  display:flex;
  flex-direction:column;
  gap:26px;
  height:100%;
  padding:32px 22px 26px;
  transition:padding .2s ease;
}
.site-header[data-scrolled] .site-header__inner{padding-top:20px}

.site-header__brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:20px;
  border-bottom:2px solid var(--edge);
  color:var(--paper);
  text-decoration:none;
}
.site-header__brand-mark{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:40px;height:40px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:20px;
  font-weight:700;
  box-shadow:var(--shadow-hard);
}
.site-header__brand-text{min-width:0}
.site-header__brand-line{
  display:block;
  font-size:19px;
  font-weight:800;
  letter-spacing:.05em;
  line-height:1.2;
  white-space:nowrap;
}
.site-header__brand-sub{
  display:block;
  margin-top:5px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--cool);
  white-space:nowrap;
}
.site-header[data-scrolled] .site-header__brand-sub{opacity:.45}

.site-nav{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overflow-x:hidden;
  counter-reset:navidx;
  border-top:2px solid var(--edge);
  padding-top:14px;
}
.site-nav__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.site-nav__item{margin:0}
.site-nav__link{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 10px;
  border-left:2px solid transparent;
  color:var(--paper);
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  text-decoration:none;
  transition:background .15s ease,border-color .15s ease,color .15s ease,padding-left .15s ease;
}
.site-nav__link::before{
  counter-increment:navidx;
  content:counter(navidx,decimal-leading-zero);
  flex:0 0 auto;
  padding-top:3px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--cool);
}
.site-nav__link:hover{
  background:rgba(198,245,60,.07);
  border-left-color:var(--edge-soft);
  padding-left:14px;
}
.site-nav__link[aria-current="page"]{
  background:rgba(198,245,60,.12);
  border-left-color:var(--lime);
  color:var(--lime);
}
.site-nav__link[aria-current="page"]::before{color:var(--lime)}

.site-header__cta{
  display:block;
  flex:0 0 auto;
  padding:12px 14px;
  border:2px solid var(--lime);
  background:var(--lime);
  color:var(--ink);
  font-size:15px;
  font-weight:700;
  text-align:center;
  text-decoration:none;
  box-shadow:var(--shadow-hard);
  transition:transform .15s ease,box-shadow .15s ease;
}
.site-header__cta:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lift)}
.site-header__cta:active{transform:translate(0,0);box-shadow:2px 2px 0 rgba(0,0,0,.45)}

.site-header__meta{
  margin:0;
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.75;
  letter-spacing:.06em;
  color:var(--cool);
  border-top:2px solid var(--edge);
  padding-top:14px;
}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 12px;
  background:transparent;
  border:2px solid var(--edge);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .15s ease,color .15s ease;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px}
.nav-toggle__bar{
  display:block;
  width:16px;height:2px;
  background:var(--lime);
  transition:transform .18s ease;
}
.nav-toggle__label{line-height:1}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.site-header[data-open] .nav-toggle{border-color:var(--lime);color:var(--lime)}
.site-header[data-open] .nav-toggle__bar:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bar:last-child{transform:translateY(-3px) rotate(-45deg)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,104px);
  border-top:2px solid var(--edge);
  background-color:var(--indigo);
  background-image:repeating-linear-gradient(90deg,rgba(198,245,60,.05) 0 2px,transparent 2px 72px);
  color:var(--paper);
}
.site-footer__inner{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:clamp(40px,5vw,60px) clamp(18px,4vw,48px) 34px;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
.site-footer__brand-line{
  margin:0 0 12px;
  font-size:clamp(24px,2.6vw,30px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
}
.site-footer__tagline{
  margin:0;
  max-width:36ch;
  color:var(--cool);
  font-size:15px;
  line-height:1.75;
}
.site-footer__col{margin:0}
.site-footer__col-title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--lime);
}
.site-footer__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.site-footer__link{
  display:inline-block;
  color:var(--paper);
  font-size:15px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .15s ease,border-color .15s ease;
}
.site-footer__link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.site-footer__legal{
  margin-top:clamp(34px,4vw,48px);
  padding-top:22px;
  border-top:1px solid var(--edge);
  display:flex;
  flex-wrap:wrap;
  gap:10px 30px;
  justify-content:space-between;
  align-items:baseline;
}
.site-footer__contact-line,
.site-footer__icp{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cool);
}
.site-footer__icp{color:var(--amber)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  margin:0 0 30px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
}
.breadcrumb__list{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  margin:0;
  padding:0;
}
.breadcrumb__item{display:flex;align-items:center;color:var(--cool)}
.breadcrumb__item:not(:last-child)::after{content:"/";margin:0 9px;color:var(--edge-soft)}
.breadcrumb__link{color:var(--cool);text-decoration:none}
.breadcrumb__link:hover{color:var(--lime)}
.breadcrumb__current{color:var(--lime)}

/* ---------- 章节骨架 ---------- */
.section{margin-top:clamp(48px,7vw,96px)}
.section:first-child{margin-top:0}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  gap:12px 26px;
  margin-bottom:28px;
  padding-bottom:14px;
  border-bottom:2px solid var(--edge);
}
.section__eyebrow{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--lime);
}
.section__title{margin:0;flex:1 1 320px;font-size:clamp(24px,3.2vw,36px)}
.section__note{
  margin:0;
  max-width:38ch;
  font-family:var(--font-mono);
  font-size:12.5px;
  line-height:1.7;
  letter-spacing:.04em;
  color:var(--cool);
}

/* ---------- 网格骨架 ---------- */
.grid{display:grid;gap:22px}
.grid--cards{grid-template-columns:repeat(auto-fill,minmax(238px,1fr))}
.grid--split{grid-template-columns:1fr}
.grid--aside{grid-template-columns:1fr}

/* ---------- 正文 ---------- */
.prose{
  max-width:68ch;
  font-size:17px;
  line-height:1.85;
  color:#DCE4DA;
}
.prose__lead{
  font-size:clamp(18px,2.1vw,21px);
  line-height:1.75;
  color:var(--paper);
}
.prose h2{margin-top:1.6em;color:var(--paper)}
.prose h3{margin-top:1.4em;color:var(--paper)}
.prose a{color:var(--lime);text-underline-offset:3px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 20px;
  border:2px solid var(--edge);
  background:transparent;
  color:var(--paper);
  font-family:inherit;
  font-size:15px;
  font-weight:700;
  line-height:1.3;
  text-decoration:none;
  cursor:pointer;
  box-shadow:var(--shadow-hard);
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease,color .15s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-lift)}
.btn:active{transform:translate(0,0);box-shadow:2px 2px 0 rgba(0,0,0,.45)}
.btn--primary{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.btn--coral{background:var(--coral);border-color:var(--coral);color:#2A0F06}
.btn--ghost{background:transparent;border-color:var(--edge);color:var(--paper)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}
.btn--block{display:flex;width:100%;justify-content:center}

/* ---------- 索引卡 ---------- */
.card{
  position:relative;
  padding:20px;
  border:2px solid var(--edge);
  background:var(--panel);
  box-shadow:var(--shadow-hard);
  transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--edge-soft)}
.card__index{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--lime);
}
.card__title{margin:9px 0 9px;font-size:18px;line-height:1.35}
.card__title a{color:var(--paper);text-decoration:none}
.card__title a:hover{color:var(--lime)}
.card__text{margin:0;font-size:14.5px;line-height:1.7;color:#B9C7BE}
.card__meta{
  margin:14px 0 0;
  padding-top:12px;
  border-top:1px dashed var(--edge);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--cool);
}

/* ---------- 标签 ---------- */
.tag-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border:2px solid var(--edge);
  background:rgba(255,255,255,.02);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  line-height:1.3;
  text-decoration:none;
  cursor:pointer;
  transition:border-color .15s ease,color .15s ease,background .15s ease;
}
.tag:hover{border-color:var(--lime);color:var(--lime)}
.tag--active,
.tag[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.tag--coral{border-color:var(--coral);color:var(--coral)}
.tag--coral:hover{border-color:var(--coral);color:var(--coral)}
.tag--cool{border-color:var(--cool);color:var(--cool)}

/* ---------- 面板 ---------- */
.panel{
  border:2px solid var(--edge);
  background:var(--panel);
  box-shadow:var(--shadow-hard);
}
.panel__head{
  margin:0;
  padding:13px 18px;
  border-bottom:2px solid var(--edge);
  background:rgba(198,245,60,.05);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--lime);
}
.panel__body{padding:20px 18px}

/* ---------- 数据表 ---------- */
.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
}
.data-table caption{
  padding-bottom:12px;
  text-align:left;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--cool);
}
.data-table th,
.data-table td{
  padding:11px 12px;
  border-bottom:1px solid var(--edge);
  text-align:left;
  vertical-align:top;
}
.data-table th{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--cool);
}
.data-table tbody tr:hover{background:rgba(198,245,60,.05)}
.data-table__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  text-align:right;
  white-space:nowrap;
}

/* ---------- 旁注 ---------- */
.note{
  margin:22px 0;
  padding:15px 18px;
  border-left:4px solid var(--lime);
  background:rgba(198,245,60,.06);
  font-size:15px;
  line-height:1.75;
  color:#D6E0D6;
}
.note--cool{border-left-color:var(--cool);background:rgba(143,166,178,.1)}
.note--amber{border-left-color:var(--amber);background:rgba(242,180,65,.09)}

/* ---------- 图例 ---------- */
.legend{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cool);
}
.legend__item{display:inline-flex;align-items:center;gap:8px}
.legend__swatch{
  display:inline-block;
  width:14px;height:14px;
  background:var(--lime);
  border:2px solid rgba(0,0,0,.4);
}
.legend__swatch--coral{background:var(--coral)}
.legend__swatch--claret{background:var(--claret)}
.legend__swatch--cool{background:var(--cool)}
.legend__swatch--amber{background:var(--amber)}

/* ---------- 数据面板 ---------- */
.kpi-row{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(148px,1fr));
  gap:2px;
  border:2px solid var(--edge);
  background:var(--edge);
}
.kpi{padding:18px;background:var(--panel)}
.kpi__value{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(24px,3.2vw,34px);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--lime);
}
.kpi__label{
  display:block;
  margin-top:7px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--cool);
}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  margin:0;
  border:2px solid var(--edge);
  background:linear-gradient(135deg,var(--panel) 0%,#0F231D 55%,var(--indigo) 100%);
  box-shadow:var(--shadow-hard);
  overflow:hidden;
}
.media-frame__img{
  display:block;
  width:100%;
  height:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.media-frame--wide .media-frame__img{aspect-ratio:21/9}
.media-frame--tall .media-frame__img{aspect-ratio:3/4}
.media-frame__caption{
  margin:0;
  padding:12px 14px;
  border-top:2px solid var(--edge);
  background:var(--panel);
  font-family:var(--font-mono);
  font-size:11.5px;
  line-height:1.65;
  letter-spacing:.06em;
  color:var(--cool);
}

/* ---------- 分隔 ---------- */
.divider{
  height:2px;
  margin:clamp(36px,5vw,64px) 0;
  border:0;
  background:var(--edge);
}

/* ---------- 平板 ---------- */
@media (max-width:1279px){
  :root{--frame-w:224px}
  .site-nav__link{font-size:14px;padding:9px 8px}
  .site-header__inner{padding:26px 16px 22px;gap:20px}
  .site-header__brand-line{font-size:17px}
  .site-header__brand-sub{font-size:11px}
}

@media (min-width:960px){
  .grid--split{grid-template-columns:32fr 68fr;gap:40px}
  .grid--aside{grid-template-columns:28fr 72fr;gap:40px}
}

@media (min-width:900px){
  .site-footer__grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
}

/* ---------- 移动端 ---------- */
@media (max-width:767px){
  :root{--frame-w:0px}

  body{padding-left:0;padding-top:var(--header-h)}

  .site-header{
    top:0;left:0;right:0;bottom:auto;
    width:100%;
    height:var(--header-h);
    border-right:none;
    border-bottom:2px solid var(--edge);
  }
  .site-header::after{
    top:auto;right:0;bottom:-2px;left:0;
    width:auto;height:2px;
    transform:scaleX(var(--read-progress,0));
    transform-origin:left center;
  }
  .site-header__inner{
    flex-direction:row;
    align-items:center;
    flex-wrap:wrap;
    gap:10px;
    height:100%;
    padding:0 16px;
  }
  .site-header[data-scrolled] .site-header__inner{padding-top:0}

  .site-header__brand{flex:1 1 auto;padding-bottom:0;border-bottom:none;min-width:0}
  .site-header__brand-mark{width:34px;height:34px;font-size:17px}
  .site-header__brand-line{font-size:16px}
  .site-header__brand-sub{display:none}

  .nav-toggle{display:inline-flex;flex:0 0 auto}

  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    max-height:calc(100vh - var(--header-h));
    padding:10px 16px 24px;
    border-top:2px solid var(--edge);
    border-bottom:2px solid var(--lime);
    background:var(--panel);
    visibility:hidden;
    opacity:0;
    transform:translateY(-10px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  }
  .site-header[data-open] .site-nav{
    visibility:visible;
    opacity:1;
    transform:translateY(0);
  }
  .site-nav__list{gap:0}
  .site-nav__link{
    padding:14px 10px;
    font-size:16px;
    border-bottom:1px solid var(--edge);
  }
  .site-nav__link:hover{padding-left:14px}

  .site-header__cta{display:none}
  .site-header__meta{display:none}
}

@media (max-width:420px){
  .nav-toggle__label{display:none}
  .site-header__brand-line{font-size:15px}
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
  }
  .btn:hover,
  .card:hover,
  .site-header__cta:hover{transform:none}
  .site-nav__link:hover{padding-left:10px}
  .site-nav{transition:none}
}