/* =========================================================
   9Z体育数据 — 共享样式表 /assets/site.css
   深夜赛场指挥中心：深空蓝黑画布 + 午夜玻璃面板 + 荧光青轨迹
   ========================================================= */

:root{
  /* --- 品牌色板 --- */
  --c-bg:#070B14;
  --c-panel:#0E1626;
  --c-line:#1C2A3F;
  --c-cyan:#00E5FF;
  --c-orange:#FF6A00;
  --c-mint:#7CFFB2;
  --c-grey:#9AA7B8;
  --c-white:#F4F8FF;
  --c-purple:#8B5CF6;
  --c-red:#FF3B5C;

  /* --- 排版 --- */
  --font-heading:"HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  /* --- 尺寸与节奏 --- */
  --w-max:1240px;
  --gutter:clamp(18px,4vw,48px);
  --header-h:76px;
  --radius:2px;
  --ease:cubic-bezier(.22,.72,.18,1);
}

/* ------------------------- Reset ------------------------- */
*,
*::before,
*::after{box-sizing:border-box;}

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

body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--c-white);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.72;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img,
svg,
video{display:block;max-width:100%;}

a{color:inherit;}

button,
input,
select,
textarea{font:inherit;color:inherit;}

ul,
ol{margin:0;padding:0;list-style:none;}

h1,h2,h3,h4,p,figure,blockquote{margin:0;}

h1,h2,h3,h4{
  font-family:var(--font-heading);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.012em;
  color:var(--c-white);
}

main{display:block;}

#main-content{scroll-margin-top:calc(var(--header-h) + 14px);}

/* --------------------- 焦点与无障碍 --------------------- */
:focus-visible{
  outline:2px solid var(--c-cyan);
  outline-offset:3px;
  border-radius:var(--radius);
}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  padding:11px 18px;
  background:var(--c-cyan);
  color:#04121A;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  border-radius:var(--radius);
  box-shadow:0 10px 30px rgba(0,229,255,.3);
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

/* ----------------------- 布局基线 ----------------------- */
.container{
  width:100%;
  max-width:var(--w-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{
  position:relative;
  padding-block:clamp(56px,9vw,128px);
}
.section--tight{padding-block:clamp(34px,5.5vw,72px);}

.grid{
  display:grid;
  gap:clamp(18px,2.4vw,30px);
}
.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));}

/* ----------------------- 文字系统 ----------------------- */
.display-title{
  font-family:var(--font-heading);
  font-weight:900;
  font-size:clamp(38px,6.4vw,84px);
  line-height:1.03;
  letter-spacing:-.022em;
  color:var(--c-white);
}

.section-title{
  font-family:var(--font-heading);
  font-weight:900;
  font-size:clamp(26px,3.6vw,46px);
  line-height:1.1;
  letter-spacing:-.014em;
}

.sub-title{
  font-family:var(--font-heading);
  font-weight:800;
  font-size:clamp(19px,2.2vw,26px);
  line-height:1.28;
}

.lede{
  max-width:62ch;
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.75;
  color:rgba(244,248,255,.78);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--c-cyan);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--c-cyan);
  flex:none;
}

.text-mono{font-family:var(--font-mono);}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1;
}

.prose{
  max-width:72ch;
  font-size:17px;
  line-height:1.75;
  color:rgba(244,248,255,.8);
}
.prose > * + *{margin-top:1.1em;}
.prose h2{
  margin-top:1.6em;
  font-size:clamp(22px,2.6vw,32px);
  color:var(--c-white);
}
.prose h3{
  margin-top:1.4em;
  font-size:clamp(18px,2vw,24px);
  color:var(--c-white);
}
.prose ul{
  display:flex;
  flex-direction:column;
  gap:.55em;
}
.prose ul li{position:relative;padding-left:1.25em;}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;
  height:6px;
  background:var(--c-cyan);
  transform:rotate(45deg);
}
.prose a{
  color:var(--c-cyan);
  text-decoration:underline;
  text-underline-offset:3px;
}
.prose strong{color:var(--c-white);font-weight:800;}

/* ------------------------- 按钮 ------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-family:var(--font-heading);
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.2;
  text-decoration:none;
  color:var(--c-white);
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease),
             border-color .22s var(--ease),box-shadow .22s var(--ease),
             transform .22s var(--ease);
}
.btn:hover{
  border-color:var(--c-cyan);
  color:var(--c-cyan);
}
.btn--primary{
  background:var(--c-cyan);
  border-color:var(--c-cyan);
  color:#04121A;
}
.btn--primary:hover{
  color:#04121A;
  border-color:var(--c-cyan);
  box-shadow:0 10px 30px rgba(0,229,255,.32);
  transform:translateY(-1px);
}

/* ------------------------- 标签 ------------------------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--c-grey);
  background:rgba(7,11,20,.6);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
}
.tag--cyan{color:var(--c-cyan);border-color:rgba(0,229,255,.42);}
.tag--orange{color:var(--c-orange);border-color:rgba(255,106,0,.42);}
.tag--mint{color:var(--c-mint);border-color:rgba(124,255,178,.42);}

/* --------------------- 面板与数据读数 --------------------- */
.panel-card{
  position:relative;
  padding:clamp(20px,2.8vw,32px);
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  box-shadow:10px 10px 0 -1px rgba(28,42,63,.55);
}

.stat{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.stat__value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(30px,4.6vw,58px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--c-cyan);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--c-grey);
}
.stat--orange .stat__value{color:var(--c-orange);}
.stat--mint .stat__value{color:var(--c-mint);}
.stat--white .stat__value{color:var(--c-white);}

/* ------------------------ 面包屑 ------------------------ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--c-grey);
}
.breadcrumb a{
  color:var(--c-grey);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.breadcrumb a:hover{color:var(--c-cyan);}
.breadcrumb__sep{color:var(--c-line);}
.breadcrumb [aria-current="page"]{color:var(--c-mint);}

/* --------------------- 图像占位容器 --------------------- */
.figure{
  position:relative;
  margin:0;
}
.figure__media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  background:linear-gradient(150deg,#0E1626 0%,#070B14 62%,rgba(139,92,246,.18) 100%);
}
.figure__media::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(28,42,63,.5) 1px,transparent 1px),
    linear-gradient(90deg,rgba(28,42,63,.5) 1px,transparent 1px);
  background-size:52px 52px;
  opacity:.75;
  pointer-events:none;
}
.figure__media img,
.figure__media svg{
  position:relative;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure__glow{
  position:absolute;
  left:-10%;
  right:-10%;
  bottom:-30%;
  height:60%;
  background:radial-gradient(closest-side,rgba(0,229,255,.28),transparent 72%);
  pointer-events:none;
}
.figure--portrait .figure__media{aspect-ratio:3/4;}
.figure--square .figure__media{aspect-ratio:1/1;}
.figure--wide .figure__media{aspect-ratio:21/9;}
.figure__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-grey);
}

/* --------------------- 滚动显现协议 --------------------- */
[data-reveal]{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
[data-reveal].is-visible{
  opacity:1;
  transform:none;
}
[data-reveal="1"]{transition-delay:.05s;}
[data-reveal="2"]{transition-delay:.1s;}
[data-reveal="3"]{transition-delay:.16s;}
[data-reveal="4"]{transition-delay:.22s;}
[data-reveal="5"]{transition-delay:.28s;}

/* =========================================================
   固定头部
   ========================================================= */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:90;
  background-color:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .35s var(--ease),
             border-color .35s var(--ease),
             backdrop-filter .35s var(--ease);
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,.92) 0%,rgba(7,11,20,.55) 55%,rgba(7,11,20,0) 100%);
  transition:opacity .3s var(--ease);
}
.site-header[data-scrolled]{
  background-color:rgba(14,22,38,.94);
  border-bottom-color:var(--c-line);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
}
.site-header[data-scrolled]::before{opacity:0;}

.site-header__inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,34px);
  min-height:var(--header-h);
}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:3;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-mint));
  will-change:transform;
}

/* --------- 品牌 --------- */
.site-header__brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
  text-decoration:none;
}
.brand-mark{
  display:inline-grid;
  place-items:center;
  width:36px;
  height:36px;
  flex:none;
  background:var(--c-cyan);
  color:#04121A;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1;
  border-radius:var(--radius);
  box-shadow:5px 5px 0 -1px rgba(0,229,255,.2);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.brand-text__name{
  font-family:var(--font-heading);
  font-size:17px;
  font-weight:900;
  letter-spacing:.01em;
  line-height:1.1;
  color:var(--c-white);
}
.brand-text__sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.28em;
  line-height:1;
  text-transform:uppercase;
  color:var(--c-grey);
}

/* --------- 主导航 --------- */
.site-nav{margin-left:auto;}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,1.4vw,22px);
}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:12px 6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-grey);
  text-decoration:none;
  transition:color .22s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:6px;
  right:6px;
  bottom:6px;
  height:2px;
  background:var(--c-cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s var(--ease);
}
.site-nav__link:hover{color:var(--c-white);}
.site-nav__link:hover::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{color:var(--c-white);}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);}

.site-nav__cta{display:none;}

/* --------- 头部右侧 --------- */
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 12px;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  color:var(--c-white);
  cursor:pointer;
  transition:border-color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-cyan);}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:4px;
  width:18px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--c-cyan);
  transform-origin:center;
  transition:transform .28s var(--ease),opacity .2s var(--ease);
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0;}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  background-color:var(--c-panel);
  border-top:1px solid var(--c-line);
  color:var(--c-grey);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:min(38%,420px);
  height:2px;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-purple));
}
.site-footer::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.55;
  background-image:
    linear-gradient(rgba(28,42,63,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(28,42,63,.42) 1px,transparent 1px);
  background-size:60px 60px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 62%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 62%);
}

.site-footer__inner{
  position:relative;
  z-index:1;
  padding-block:clamp(44px,6vw,76px) 28px;
}

.site-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,2.2fr);
  gap:clamp(28px,4vw,64px);
}

.footer-brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.footer-brand__name{
  font-family:var(--font-heading);
  font-size:22px;
  font-weight:900;
  letter-spacing:.01em;
  line-height:1.15;
  color:var(--c-white);
}
.footer-brand__line{
  max-width:34ch;
  font-size:14px;
  line-height:1.72;
  color:var(--c-grey);
}
.footer-brand__meta{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--c-mint);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,34px);
}
.footer-col__title{
  display:flex;
  align-items:baseline;
  gap:8px;
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--c-white);
}
.footer-col__no{color:var(--c-cyan);}

.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-link{
  display:inline-block;
  font-size:15px;
  color:var(--c-grey);
  text-decoration:none;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-link:hover{
  color:var(--c-cyan);
  padding-left:8px;
}

.footer-contact{
  margin-top:clamp(32px,4vw,54px);
  padding:clamp(20px,2.6vw,28px);
  background:rgba(7,11,20,.55);
  border:1px solid var(--c-line);
  border-radius:var(--radius);
}
.footer-contact__label{
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--c-orange);
}
.footer-contact__value{
  font-size:15px;
  line-height:1.8;
  color:var(--c-white);
}
.footer-contact__note{
  margin-top:8px;
  font-size:13px;
  line-height:1.7;
  color:var(--c-grey);
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:clamp(26px,3vw,40px);
  padding-top:20px;
  border-top:1px solid var(--c-line);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--c-grey);
}
.footer-bottom__legal{color:var(--c-mint);}
.footer-bottom__copy{color:var(--c-grey);}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1100px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:900px){
  :root{--header-h:62px;}

  .site-header__cta{display:none;}
  .nav-toggle{display:inline-flex;}

  .site-nav{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:1;
    margin-left:0;
    padding:calc(var(--header-h) + 14px) var(--gutter) 32px;
    background-color:rgba(9,14,26,.98);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--c-line);
    opacity:0;
    visibility:hidden;
    transform:translateY(-14px);
    max-height:100vh;
    overflow-y:auto;
    transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
  }
  .site-header[data-open] .site-nav{
    opacity:1;
    visibility:visible;
    transform:none;
  }

  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .site-nav__link{
    padding:16px 2px;
    font-size:19px;
    font-weight:800;
    color:var(--c-white);
    border-bottom:1px solid var(--c-line);
  }
  .site-nav__link::after{display:none;}
  .site-nav__link:hover{color:var(--c-cyan);}
  .site-nav__link[aria-current="page"]{color:var(--c-cyan);}
  .site-nav__link[aria-current="page"]::before{
    content:"";
    display:inline-block;
    width:8px;
    height:8px;
    margin-right:10px;
    vertical-align:middle;
    background:var(--c-cyan);
  }

  .site-nav__cta{
    display:block;
    margin-top:22px;
  }
  .site-nav__cta .btn{width:100%;}

  .site-footer__top{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:640px){
  .grid--2,
  .grid--3,
  .grid--4{grid-template-columns:minmax(0,1fr);}

  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px;}
  .panel-card{box-shadow:6px 6px 0 -1px rgba(28,42,63,.55);}
  .figure__caption{font-size:11px;}
  .footer-bottom{justify-content:flex-start;}
}

/* --------------------- 减弱动态偏好 --------------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }
}