/* ============================================================
   贝博体育 · 赛事数据台 — 共享样式 /assets/site.css
   夜间球场数据台：深墨绿底 / 荧光青结构 / 琥珀关键数据
   ============================================================ */

:root{
  --ink-900:#061A15;
  --ink-800:#0A241E;
  --ink-700:#123B31;
  --ink-600:#1D4A3F;
  --cyan:#35F2C8;
  --cyan-soft:#C9FFF2;
  --amber:#FFB24D;
  --text:#EAFBF5;
  --muted:#8FB8AD;
  --deep-blue:#0B3B46;
  --coral:#FF7A68;
  --grid-line:rgba(29,74,63,.55);

  --shell:min(1240px, calc(100% - 48px));
  --font-display:"Barlow Condensed","DIN Alternate","Arial Narrow",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-data:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}

@media (max-width:640px){
  :root{ --shell:calc(100% - 28px); }
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,picture,svg,video{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
a{color:inherit;}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}

@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth;}
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1200px 640px at 84% -8%, rgba(53,242,200,.10), transparent 62%),
    radial-gradient(900px 520px at 2% 4%, rgba(11,59,70,.55), transparent 66%),
    linear-gradient(to right, rgba(29,74,63,.32) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29,74,63,.32) 1px, transparent 1px);
  background-size:auto, auto, 96px 96px, 96px 96px;
  background-attachment:fixed, fixed, fixed, fixed;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:300;
  line-height:1.14;
  letter-spacing:.04em;
  color:var(--cyan-soft);
}

p{max-width:72ch;}

::selection{background:var(--cyan);color:var(--ink-900);}

#main-content{display:block;scroll-margin-top:110px;}
#main-content:focus{outline:none;}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-120px;
  z-index:200;
  padding:10px 20px;
  border-radius:999px;
  background:var(--cyan);
  color:var(--ink-900);
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  transition:top .22s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{ top:14px; }

/* ---------- 悬浮胶囊头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 0 18px;
  transition:padding .28s var(--ease);
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:linear-gradient(180deg, rgba(6,26,21,.94) 0%, rgba(6,26,21,.66) 62%, rgba(6,26,21,0) 100%);
}
.header-shell{
  position:relative;
  width:var(--shell);
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:8px 10px 8px 16px;
  border:1px solid var(--ink-700);
  border-radius:999px;
  background:linear-gradient(120deg, rgba(10,36,30,.96), rgba(6,26,21,.92));
  box-shadow:0 18px 42px -20px rgba(0,0,0,.95), inset 0 1px 0 rgba(201,255,242,.07);
  transition:padding .28s var(--ease), background .28s var(--ease), box-shadow .28s var(--ease);
}
.site-header[data-stuck]{ padding-top:8px; padding-bottom:10px; }
.site-header[data-stuck] .header-shell{
  padding-block:5px;
  background:linear-gradient(120deg, rgba(10,36,30,.99), rgba(6,26,21,.97));
  box-shadow:0 22px 52px -22px rgba(0,0,0,1), inset 0 1px 0 rgba(201,255,242,.10);
}

/* 品牌浮岛 */
.brand-island{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  min-width:0;
  text-decoration:none;
}
.brand-mark{
  position:relative;
  width:34px;
  height:34px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  background:linear-gradient(150deg, var(--cyan) 0%, #1E9E86 56%, var(--deep-blue) 100%);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand-mark::before{
  content:"";
  width:9px;
  height:9px;
  background:var(--ink-900);
  transform:rotate(45deg);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:1px;
  line-height:1.1;
  min-width:0;
}
.brand-label{
  font-family:var(--font-display);
  font-size:16px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--cyan-soft);
  white-space:nowrap;
}
.brand-tagline{
  font-family:var(--font-data);
  font-size:10.5px;
  letter-spacing:.22em;
  color:var(--muted);
  white-space:nowrap;
}

/* 主导航 */
.site-nav{ margin-left:auto; min-width:0; }
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  display:block;
  padding:8px 13px;
  border-radius:999px;
  font-size:14px;
  letter-spacing:.03em;
  color:var(--muted);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link:hover{ color:var(--cyan-soft); background:rgba(53,242,200,.09); }
.nav-link[aria-current="page"]{
  color:var(--ink-900);
  background:var(--cyan);
  font-weight:600;
  box-shadow:0 0 0 1px rgba(53,242,200,.45), 0 8px 20px -10px rgba(53,242,200,.9);
}
.nav-link[aria-current="page"]:hover{
  color:var(--ink-900);
  background:var(--cyan-soft);
}

/* 头部行动入口 */
.header-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border:1px solid rgba(53,242,200,.5);
  border-radius:999px;
  background:rgba(53,242,200,.07);
  color:var(--cyan);
  font-size:13.5px;
  letter-spacing:.06em;
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.header-cta::after{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 8px var(--amber);
}
.header-cta:hover{
  background:var(--cyan);
  color:var(--ink-900);
  border-color:var(--cyan);
}

/* 移动导航按钮 */
.nav-toggle{
  position:relative;
  display:none;
  width:40px;
  height:40px;
  flex:0 0 auto;
  border:1px solid var(--ink-700);
  border-radius:50%;
  background:rgba(18,59,49,.65);
  transition:border-color .2s var(--ease), background .2s var(--ease);
}
.nav-toggle:hover{ border-color:var(--cyan); }
.nav-toggle-bar{
  position:absolute;
  left:50%;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--cyan-soft);
  transform:translateX(-50%);
  transition:transform .26s var(--ease), opacity .2s var(--ease);
}
.nav-toggle-bar:nth-child(1){ top:15px; }
.nav-toggle-bar:nth-child(2){ top:23px; }
.site-header[data-open] .nav-toggle-bar:nth-child(1){
  transform:translateX(-50%) translateY(4px) rotate(45deg);
}
.site-header[data-open] .nav-toggle-bar:nth-child(2){
  transform:translateX(-50%) translateY(-4px) rotate(-45deg);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,120px);
  padding:clamp(44px,6vw,80px) 0 28px;
  border-top:1px solid var(--ink-700);
  background:
    radial-gradient(900px 420px at 10% 0%, rgba(53,242,200,.08), transparent 62%),
    linear-gradient(180deg, rgba(10,36,30,.6), rgba(4,18,14,.96));
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:34%;
  height:1px;
  background:linear-gradient(90deg, var(--cyan), transparent);
}
.footer-shell{
  width:var(--shell);
  margin-inline:auto;
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(0,2fr);
  gap:clamp(28px,5vw,64px);
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:36ch;
}
.footer-brand-link{
  font-family:var(--font-display);
  font-size:clamp(24px,2.6vw,34px);
  font-weight:600;
  letter-spacing:.14em;
  color:var(--cyan-soft);
  text-decoration:none;
  line-height:1.1;
}
.footer-brand-link span{ color:var(--cyan); }
.footer-summary{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.footer-cta{
  align-self:flex-start;
  display:inline-flex;
  align-items:center;
  padding:10px 22px;
  border-radius:999px;
  background:var(--cyan);
  color:var(--ink-900);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
}
.footer-cta:hover{
  background:var(--cyan-soft);
  transform:translateY(-2px);
  box-shadow:0 16px 30px -16px rgba(53,242,200,.95);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-col{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-col-title{
  font-family:var(--font-display);
  font-size:13px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--cyan);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:9px;
}
.footer-link{
  display:inline-block;
  font-size:14.5px;
  color:var(--text);
  text-decoration:none;
  transition:color .2s var(--ease), transform .2s var(--ease);
}
.footer-link:hover{
  color:var(--cyan);
  transform:translateX(4px);
}
.footer-contact{
  width:var(--shell);
  margin:clamp(34px,5vw,56px) auto 0;
  padding-top:26px;
  border-top:1px solid var(--ink-700);
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:18px 32px;
}
.footer-contact-row{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.footer-contact-label{
  font-family:var(--font-data);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--muted);
}
.footer-contact-value{
  font-size:14.5px;
  line-height:1.6;
  color:var(--text);
  word-break:break-word;
}
.footer-bottom{
  width:var(--shell);
  margin:26px auto 0;
  padding-top:20px;
  border-top:1px solid rgba(29,74,63,.7);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  font-size:12.5px;
  color:var(--muted);
}
.footer-copyright{ margin:0; }
.footer-icp{
  margin:0;
  font-family:var(--font-data);
  letter-spacing:.05em;
}

@media (max-width:820px){
  .footer-shell{ grid-template-columns:minmax(0,1fr); }
  .footer-brand{ max-width:none; }
}
@media (max-width:520px){
  .footer-nav{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}

/* ---------- 页面容器 ---------- */
.page-shell{
  width:var(--shell);
  margin-inline:auto;
}
.section{ padding-block:clamp(36px,5.5vw,80px); }
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(22px,3vw,40px);
}
.lede{
  font-size:clamp(15px,1.3vw,17px);
  line-height:1.85;
  color:var(--muted);
  max-width:62ch;
}

/* ---------- 编号章节 ---------- */
.chapter{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:6px 20px;
}
.chapter-index{
  font-family:var(--font-data);
  font-size:clamp(46px,7vw,104px);
  line-height:.82;
  letter-spacing:-.02em;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(53,242,200,.42);
  text-stroke:1.5px rgba(53,242,200,.42);
}
.chapter-kicker{
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.26em;
  color:var(--amber);
}
.chapter-title{
  font-family:var(--font-display);
  font-size:clamp(26px,3.4vw,44px);
  font-weight:300;
  letter-spacing:.06em;
  line-height:1.1;
  color:var(--cyan-soft);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 26px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.04em;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn--primary{
  background:var(--cyan);
  color:var(--ink-900);
}
.btn--primary:hover{ background:var(--cyan-soft); transform:translateY(-2px); }
.btn--ghost{
  background:transparent;
  border-color:var(--ink-700);
  color:var(--cyan-soft);
}
.btn--ghost:hover{ border-color:var(--cyan); color:var(--cyan); }
.btn--quiet{
  background:rgba(53,242,200,.1);
  color:var(--cyan);
}
.btn--quiet:hover{ background:rgba(53,242,200,.18); }

/* ---------- 面包屑 ---------- */
.breadcrumb{
  margin-block:24px 8px;
  font-family:var(--font-data);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--muted);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb li{
  display:flex;
  align-items:center;
  gap:8px;
}
.breadcrumb li + li::before{
  content:"/";
  color:rgba(143,184,173,.5);
}
.breadcrumb a{
  color:var(--muted);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.breadcrumb a:hover{ color:var(--cyan); }
.breadcrumb [aria-current="page"]{ color:var(--cyan-soft); }

/* ---------- 栅格 ---------- */
.grid{
  display:grid;
  gap:clamp(20px,2.6vw,32px);
}
.grid--8-4{ grid-template-columns:minmax(0,2fr) minmax(0,1fr); }
.grid--9-3{ grid-template-columns:minmax(0,3fr) minmax(0,1fr); }
.grid--halves{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid--thirds{ grid-template-columns:repeat(3,minmax(0,1fr)); }

@media (max-width:900px){
  .grid--8-4,
  .grid--9-3,
  .grid--thirds{ grid-template-columns:minmax(0,1fr); }
}
@media (max-width:680px){
  .grid--halves{ grid-template-columns:minmax(0,1fr); }
}

.stack{
  display:flex;
  flex-direction:column;
  gap:clamp(16px,2vw,24px);
}

/* ---------- 媒体容器（页面阶段放图） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--ink-700);
  background:
    radial-gradient(120% 90% at 18% 8%, rgba(53,242,200,.16), transparent 58%),
    linear-gradient(160deg, var(--deep-blue), var(--ink-800));
  clip-path:polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}
.media-frame > img,
.media-frame > picture,
.media-frame > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg, rgba(6,26,21,0) 42%, rgba(6,26,21,.74) 100%);
}
.media-frame--wide{ aspect-ratio:21 / 9; }
.media-frame--tall{ aspect-ratio:3 / 4; }
.media-frame--square{ aspect-ratio:1 / 1; }
.media-frame-body{
  position:absolute;
  inset:auto 0 0 0;
  z-index:1;
  padding:16px 18px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--cyan-soft);
}

/* ---------- 分段切换 ---------- */
.segment{
  display:flex;
  flex-direction:column;
  gap:20px;
}
.segment-list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  max-width:100%;
  padding:6px;
  border:1px solid var(--ink-700);
  border-radius:999px;
  background:rgba(10,36,30,.75);
  overflow-x:auto;
}
.segment-tab{
  padding:9px 18px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:14px;
  letter-spacing:.03em;
  white-space:nowrap;
  color:var(--muted);
  transition:color .2s var(--ease), background .2s var(--ease);
}
.segment-tab:hover{ color:var(--cyan-soft); }
.segment-tab[aria-selected="true"]{
  background:var(--cyan);
  color:var(--ink-900);
  font-weight:600;
}
.segment-panel{ outline:none; }
.segment-panel[hidden]{ display:none; }

/* ---------- 滚动进度 ---------- */
.site-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:120;
  background:rgba(53,242,200,.1);
  pointer-events:none;
}
.site-progress-bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg, var(--cyan), var(--amber));
  transition:transform .12s linear;
}

/* ---------- 入场显现 ---------- */
html.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(12px);
}
html.js-reveal [data-reveal].is-revealed{
  opacity:1;
  transform:none;
  transition:opacity .5s var(--ease), transform .55s var(--ease);
}

/* ---------- 移动端头部 ---------- */
@media (max-width:980px){
  .site-header{ padding:12px 0 14px; }
  .nav-toggle{ display:block; }
  .brand-tagline{ display:none; }
  .header-shell{ padding:7px 8px 7px 14px; }

  .site-nav{
    position:fixed;
    left:12px;
    right:12px;
    bottom:12px;
    top:auto;
    display:none;
    z-index:90;
    max-height:68vh;
    overflow-y:auto;
    padding:10px;
    border:1px solid var(--ink-700);
    border-radius:24px;
    background:linear-gradient(160deg, rgba(10,36,30,.99), rgba(6,26,21,.99));
    box-shadow:0 -10px 60px -22px rgba(0,0,0,.95), 0 28px 60px -26px rgba(0,0,0,1);
  }
  .site-header[data-open] .site-nav{ display:block; }

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .nav-link{
    padding:12px 16px;
    border-radius:14px;
    font-size:15.5px;
    color:var(--text);
  }
  .nav-link[aria-current="page"]{ box-shadow:none; }
}

@media (max-width:620px){
  .header-cta{ display:none; }
  .footer-contact{ grid-template-columns:minmax(0,1fr); }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js-reveal [data-reveal]{
    opacity:1;
    transform:none;
  }
  .footer-link:hover{ transform:none; }
  .footer-cta:hover{ transform:none; }
  .btn--primary:hover{ transform:none; }
  .site-progress-bar{ transition:none; }
}