/* ============================================================
   火狐体育主站 · 共享外壳样式 /assets/site.css
   赛事控制台：炭黑底 + 火狐橙能量 + 荧光青绿数据
   ============================================================ */

:root{
  --ink:#0B0D0F;
  --panel:#15191D;
  --orange:#FF5A1F;
  --orange-2:#FF8A5C;
  --mint:#39FFB6;
  --paper:#F7F9FA;
  --mist:#A7B0B6;
  --line:#2A3036;
  --amber:#FFC24B;
  --deep:#0E5C47;

  --shell:1280px;
  --pad:clamp(16px,4vw,40px);
  --radius:0px;

  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shadow-hard:8px 8px 0 rgba(0,0,0,.55);
  --shadow-glow:5px 5px 0 rgba(255,90,31,.22);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{list-style:none;padding:0;}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;}
button{font:inherit;color:inherit;border-radius:0;}
table{border-collapse:collapse;}

/* ---------- 中文排版与基底 ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 88% -12%, rgba(255,90,31,.16), transparent 68%),
    radial-gradient(900px 560px at -8% 104%, rgba(57,255,182,.07), transparent 70%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{line-height:1.2;letter-spacing:-.01em;font-weight:600;}
p{max-width:72ch;}

.display{
  font-weight:200;
  line-height:.95;
  letter-spacing:-.03em;
  font-size:clamp(40px,7.6vw,112px);
  transform:skewX(-1.5deg);
  transform-origin:left bottom;
}
.mono{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,4.2vw,64px);
  line-height:1;
  font-weight:600;
  color:var(--orange);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--mint);
}
.eyebrow::before{content:"";display:block;width:26px;height:2px;background:var(--orange);}

/* ---------- 焦点 ---------- */
:focus-visible{
  outline:3px solid var(--mint);
  outline-offset:3px;
}
.skip-link{
  position:absolute;
  left:12px;
  top:-80px;
  z-index:300;
  padding:10px 18px;
  background:var(--orange);
  color:#0B0D0F;
  font-weight:800;
  font-size:13px;
  letter-spacing:.06em;
  text-decoration:none;
  border:2px solid #0B0D0F;
  transition:top .18s ease;
}
.skip-link:focus{top:12px;}
#main-content{scroll-margin-top:132px;}

/* ---------- 容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}

/* ============================================================
   页头
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:linear-gradient(180deg,#0B0D0F 0%,#0B0D0F 74%,rgba(11,13,15,.96) 100%);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px -28px rgba(0,0,0,.95);
}
.site-header__rail{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  overflow:hidden;
  pointer-events:none;
}
.site-header__glow{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,transparent 0%,var(--orange) 28%,var(--orange-2) 52%,rgba(57,255,182,.8) 74%,transparent 100%);
  background-size:220% 100%;
  opacity:.9;
  animation:railDrift 20s linear infinite;
}
@keyframes railDrift{
  0%{background-position:0% 0;}
  100%{background-position:220% 0;}
}
.site-header__progress{
  position:absolute;
  left:0;top:0;
  height:2px;
  width:100%;
  background:var(--mint);
  transform:scaleX(var(--p,0));
  transform-origin:0 50%;
  box-shadow:0 0 12px rgba(57,255,182,.85);
  z-index:2;
}

/* 值班状态条 */
.topbar{
  background:#07090A;
  border-bottom:1px solid var(--line);
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:34px;
}
.topbar__live,
.topbar__clock{
  display:flex;
  align-items:center;
  gap:9px;
  margin:0;
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
  max-width:none;
}
.topbar__live{color:var(--mint);}
.topbar__clock .mono{color:var(--paper);font-size:11.5px;letter-spacing:.12em;}
.topbar__label{color:var(--mist);}
.pulse{
  flex:0 0 auto;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 0 rgba(57,255,182,.55);
  animation:pulseRing 2.4s ease-out infinite;
}
@keyframes pulseRing{
  0%{box-shadow:0 0 0 0 rgba(57,255,182,.55);}
  70%{box-shadow:0 0 0 10px rgba(57,255,182,0);}
  100%{box-shadow:0 0 0 0 rgba(57,255,182,0);}
}

/* 主行：品牌 ↔ 栏目 */
.masthead{
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,32px);
  min-height:78px;
  padding-block:10px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--paper);
}
.brand__mark{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  flex:0 0 auto;
  border:2px solid var(--orange);
  background:rgba(255,90,31,.08);
  color:var(--orange);
  font-size:18px;
  font-weight:800;
  line-height:1;
  transform:skewX(-8deg);
  box-shadow:4px 4px 0 rgba(255,90,31,.18);
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.brand:hover .brand__mark,
.brand:focus-visible .brand__mark{
  background:var(--orange);
  color:#0B0D0F;
  box-shadow:6px 6px 0 rgba(57,255,182,.28);
}
.brand__text{display:block;}
.brand__name{
  display:block;
  font-size:17px;
  font-weight:800;
  letter-spacing:.06em;
  line-height:1.2;
}
.brand__sub{
  display:block;
  margin-top:3px;
  font-family:var(--mono);
  font-size:9.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--mist);
}
.brand--footer .brand__mark{width:48px;height:48px;font-size:21px;}
.brand--footer .brand__name{font-size:20px;}

/* 桌面栏目导航 */
.nav{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.8vw,26px);
  margin-left:auto;
}
.nav__list{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.1vw,18px);
  counter-reset:navItem;
}
.nav__list > li{counter-increment:navItem;}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:6px 2px;
  font-size:12.5px;
  font-weight:500;
  letter-spacing:.02em;
  color:var(--mist);
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s ease;
}
.nav__link::before{
  content:counter(navItem,decimal-leading-zero);
  font-family:var(--mono);
  font-size:9.5px;
  letter-spacing:.06em;
  color:var(--line);
  transition:color .18s ease;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .22s ease;
}
.nav__link:hover,
.nav__link:focus-visible{color:var(--paper);}
.nav__link:hover::before,
.nav__link:focus-visible::before{color:var(--orange);}
.nav__link:hover::after,
.nav__link:focus-visible::after{transform:scaleX(1);}
.nav__link[aria-current="page"]{color:var(--orange);}
.nav__link[aria-current="page"]::before{color:var(--orange-2);}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange);}
.nav__cta{flex:0 0 auto;padding:10px 18px;font-size:13px;}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:10px 14px;
  background:transparent;
  border:2px solid var(--line);
  color:var(--paper);
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange);}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px;}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--orange);
  transition:transform .22s ease;
}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{bottom:0;}
.nav-toggle[aria-expanded="true"]{border-color:var(--orange);color:var(--orange);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg);}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,128px);
  background:#07090A;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--orange) 20%,var(--orange-2) 50%,rgba(57,255,182,.7) 80%,transparent);
}
.site-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) repeat(3,minmax(0,1fr));
  gap:clamp(24px,3.6vw,56px);
  padding-block:clamp(40px,6vw,80px);
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:16px;
  align-items:flex-start;
}
.footer-brand__line{
  max-width:32ch;
  font-size:14.5px;
  line-height:1.7;
  color:var(--mist);
}
.footer-brand__tags{display:flex;flex-wrap:wrap;gap:8px;margin:0;max-width:none;}

.footer-col{min-width:0;}
.footer-col__head{
  margin:0 0 16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--mono);
  font-size:10.5px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--orange);
}
.footer-col__list{display:flex;flex-direction:column;gap:11px;}
.footer-col__link{
  display:inline-block;
  font-size:15px;
  color:var(--mist);
  text-decoration:none;
  transition:color .18s ease,transform .18s ease;
}
.footer-col__link:hover,
.footer-col__link:focus-visible{color:var(--paper);transform:translateX(4px);}

.site-footer__meta{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:clamp(18px,2.6vw,32px);
  padding-block:clamp(24px,3.6vw,40px);
  border-top:1px solid var(--line);
}
.footer-meta__item{display:flex;flex-direction:column;gap:6px;min-width:0;}
.footer-meta__label{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
}
.footer-meta__value{
  font-size:14.5px;
  line-height:1.6;
  color:var(--paper);
  overflow-wrap:anywhere;
}
.footer-meta__value.mono{font-size:12.8px;letter-spacing:.02em;color:var(--mint);}

.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  padding-block:22px 30px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--mist);
}
.footer-legal__copy,
.footer-legal__links,
.footer-legal__icp{margin:0;max-width:none;}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-legal__links a{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-legal__links a:hover,
.footer-legal__links a:focus-visible{color:var(--orange);border-color:var(--orange);}
.footer-legal__icp{font-size:11.5px;letter-spacing:.1em;color:var(--mist);}

/* ============================================================
   通用组件（供页面阶段使用）
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  background:var(--panel);
  border:2px solid var(--line);
  color:var(--paper);
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 rgba(255,90,31,.28);}
.btn--primary{
  background:var(--orange);
  border-color:var(--orange);
  color:#0B0D0F;
  box-shadow:5px 5px 0 rgba(57,255,182,.22);
}
.btn--primary:hover{
  background:var(--orange-2);
  border-color:var(--orange-2);
  box-shadow:8px 8px 0 rgba(57,255,182,.3);
}
.btn--ghost{
  background:transparent;
  border-color:var(--orange);
  color:var(--orange);
}
.btn--ghost:hover{background:rgba(255,90,31,.1);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  background:rgba(21,25,29,.9);
  border:1px solid var(--line);
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.tag--mint{color:var(--mint);border-color:rgba(57,255,182,.45);}
.tag--orange{color:var(--orange);border-color:rgba(255,90,31,.5);}
.tag--amber{color:var(--amber);border-color:rgba(255,194,75,.5);}

.section{
  padding-block:clamp(44px,6.4vw,92px);
  border-top:1px solid var(--line);
}
.section__head{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:14px;
  margin-bottom:clamp(24px,3.6vw,44px);
}
.section__no{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--orange);
}
.section__title{
  font-size:clamp(26px,3.6vw,44px);
  font-weight:300;
  letter-spacing:-.02em;
  line-height:1.1;
}
.lede{
  max-width:62ch;
  font-size:16.5px;
  line-height:1.8;
  color:var(--mist);
}

.prose{max-width:70ch;font-size:16.5px;line-height:1.85;color:#DDE3E6;}
.prose p+p{margin-top:1.05em;}
.prose h2{margin-top:2em;font-size:clamp(22px,2.4vw,30px);font-weight:600;color:var(--paper);}
.prose h3{margin-top:1.6em;font-size:18px;font-weight:600;color:var(--paper);}
.prose a{color:var(--mint);text-decoration:underline;text-underline-offset:3px;}
.prose ul,.prose ol{list-style:disc;padding-left:1.4em;margin-top:.8em;}
.prose li+li{margin-top:.4em;}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--rail{grid-template-columns:240px minmax(0,1fr);align-items:start;}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  padding:clamp(18px,2.4vw,30px);
  box-shadow:var(--shadow-hard);
}
.card--cut{
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
  box-shadow:none;
  border-top:2px solid var(--orange);
}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,#15191D 0%,#0E5C47 58%,#0B0D0F 100%);
  aspect-ratio:16/10;
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.06) contrast(1.05);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(120% 95% at 72% 18%,rgba(255,90,31,.3),transparent 62%),
    linear-gradient(180deg,rgba(11,13,15,0) 42%,rgba(11,13,15,.78) 100%);
}
.media--wide{aspect-ratio:21/9;}
.media--tall{aspect-ratio:3/4;}
.media--square{aspect-ratio:1/1;}
.media__label{
  position:absolute;
  left:14px;bottom:12px;
  z-index:2;
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--paper);
}

.breadcrumbs{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumbs li{display:flex;align-items:center;gap:8px;}
.breadcrumbs li+li::before{content:"/";color:var(--line);}
.breadcrumbs a{color:var(--mist);text-decoration:none;transition:color .18s ease;}
.breadcrumbs a:hover{color:var(--orange);}
.breadcrumbs [aria-current="page"]{color:var(--paper);}

.band{
  background:var(--panel);
  border-block:1px solid var(--line);
  padding-block:clamp(12px,1.8vw,18px);
  overflow:hidden;
}
.rule{height:1px;background:var(--line);border:0;margin:0;}
.stack{display:flex;flex-direction:column;gap:clamp(12px,2vw,20px);}

/* 滚动显现 */
.js [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.2,1);
  will-change:opacity,transform;
}
.js [data-reveal].is-visible{opacity:1;transform:none;}

/* ============================================================
   响应式：≤1119px 抽屉导航
   ============================================================ */
@media (max-width:1119px){
  .nav-toggle{display:inline-flex;}
  .nav{
    position:absolute;
    left:0;right:0;
    top:100%;
    margin-left:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    max-height:calc(100vh - 96px);
    overflow-y:auto;
    padding:8px var(--pad) 26px;
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 50px rgba(0,0,0,.72);
  }
  .nav[data-open="true"]{display:flex;}
  .nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .nav__list > li{width:100%;}
  .nav__link{
    width:100%;
    justify-content:flex-start;
    padding:15px 0;
    border-bottom:1px solid var(--line);
    font-size:16.5px;
    font-weight:600;
    color:var(--paper);
  }
  .nav__link::before{font-size:11px;color:var(--orange);}
  .nav__link::after{display:none;}
  .nav__link[aria-current="page"]{color:var(--orange);}
  .nav__cta{margin-top:18px;width:100%;padding:15px 22px;font-size:15px;}
  .site-footer__top{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1 / -1;}
}

/* ============================================================
   响应式：≤720px 手机
   ============================================================ */
@media (max-width:720px){
  body{font-size:16px;line-height:1.78;}
  .masthead{min-height:66px;padding-block:9px;}
  .brand__mark{width:36px;height:36px;font-size:16px;}
  .brand__name{font-size:15.5px;}
  .brand__sub{font-size:8.5px;letter-spacing:.18em;}
  .topbar__inner{min-height:30px;}
  .topbar__live{font-size:9.5px;letter-spacing:.12em;}
  .topbar__label{display:none;}
  .topbar__clock .mono{font-size:10.5px;}
  .nav-toggle{padding:8px 11px;font-size:9.5px;letter-spacing:.14em;}
  .display{font-size:clamp(32px,10vw,56px);}
  .grid--2,.grid--3,.grid--rail{grid-template-columns:minmax(0,1fr);}
  .site-footer__top{grid-template-columns:minmax(0,1fr);gap:28px;}
  .site-footer__legal{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-legal__links{gap:14px;}
  #main-content{scroll-margin-top:112px;}
}

/* ============================================================
   降低动效
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js [data-reveal]{opacity:1 !important;transform:none !important;transition:none !important;}
  .site-header__glow{animation:none;background-position:50% 0;}
  .site-header__progress{transition:none;}
  .btn:hover,.footer-col__link:hover,.footer-col__link:focus-visible{transform:none;}
}