/* =========================================================
   必赢国际437 · 共享样式 /assets/site.css
   深夜数据作战室 × 球场看台灯光
   ========================================================= */

:root{
  --ink:#07110D;
  --panel:#0E1713;
  --panel-2:#16241E;
  --paper:#F3ECDD;
  --silver:#AEB9B2;
  --silver-dim:rgba(174,185,178,.58);
  --lime:#B8FF3D;
  --orange:#FF6B2C;
  --teal:#37E0C2;
  --amber:#FFD166;
  --line:#34463D;
  --line-soft:rgba(52,70,61,.6);
  --band:#E8E0CF;
  --band-ink:#101A15;
  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --radius:2px;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Barlow Condensed","Roboto Condensed","Oswald","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","Menlo","Consolas","Roboto Mono",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:15.5px;
  line-height:1.65;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
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}
a{color:inherit}
hr{border:0}
::selection{background:var(--lime);color:var(--band-ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}

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

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-120px;
  z-index:300;
  display:inline-block;
  padding:.7rem 1.1rem;
  background:var(--lime);
  color:var(--band-ink);
  font-family:var(--mono);
  font-size:.78rem;
  letter-spacing:.08em;
  text-decoration:none;
  border:1px solid var(--band-ink);
  transition:top .18s ease;
}
.skip-link:focus,
.skip-link:focus-visible{top:.6rem}

/* =========================================================
   页头：双层信息导航
   ========================================================= */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background-color:var(--ink);
  border-bottom:1px solid var(--line);
}

.header-top{border-bottom:1px solid var(--line-soft)}
.header-top__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.7rem 1.4rem;
  min-height:66px;
  padding-block:.65rem;
}

.brand{min-width:0}
.brand__link{
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  text-decoration:none;
}
.brand__mark{
  flex:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.34rem .5rem;
  background:var(--lime);
  color:var(--band-ink);
  font-family:var(--mono);
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.1em;
  line-height:1;
}
.brand__text{display:flex;flex-direction:column;gap:.18rem;min-width:0}
.brand__name{
  font-family:var(--display);
  font-size:1.34rem;
  font-weight:700;
  line-height:1.05;
  letter-spacing:.02em;
  color:var(--paper);
}
.brand__descriptor{
  font-family:var(--mono);
  font-size:.67rem;
  letter-spacing:.06em;
  line-height:1.3;
  color:var(--silver-dim);
}

.header-status{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.36rem .7rem;
  border:1px solid var(--line);
  background-color:rgba(22,36,30,.65);
  color:var(--silver);
  font-family:var(--mono);
  font-size:.69rem;
  letter-spacing:.05em;
  line-height:1.4;
  max-width:100%;
}
.header-status__dot{
  flex:none;
  width:6px;
  height:6px;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(184,255,61,.16);
  animation:statusPulse 2.8s ease-in-out infinite;
}
.header-status__text{min-width:0}
@keyframes statusPulse{
  0%,100%{opacity:1}
  50%{opacity:.32}
}

.header-bar{
  background-color:var(--panel);
  border-bottom:1px solid var(--line-soft);
}
.header-bar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.8rem;
  flex-wrap:wrap;
  padding-block:.3rem;
}
.header-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex:1 1 auto;
  min-width:0;
}

.primary-nav{min-width:0}
.primary-nav__list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:.15rem;
  counter-reset:nav;
}
.primary-nav__item{display:block}
.primary-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:.45rem;
  padding:.6rem .72rem;
  border:1px solid transparent;
  color:var(--silver);
  font-size:.83rem;
  font-weight:500;
  letter-spacing:.03em;
  line-height:1.3;
  text-decoration:none;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.primary-nav__link::before{
  counter-increment:nav;
  content:counter(nav,decimal-leading-zero);
  font-family:var(--mono);
  font-size:.63rem;
  letter-spacing:.08em;
  color:rgba(174,185,178,.45);
  transition:color .18s ease;
}
.primary-nav__link:hover{
  color:var(--lime);
  background-color:var(--panel-2);
  border-color:var(--line-soft);
}
.primary-nav__link:hover::before{color:var(--teal)}
.primary-nav__link[aria-current="page"]{
  color:var(--lime);
  background-color:var(--panel-2);
  border-color:var(--line);
  border-bottom-color:var(--lime);
}
.primary-nav__link[aria-current="page"]::before{color:var(--lime)}

.header-cta{flex:none}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  order:1;
  margin-left:auto;
  padding:.55rem .8rem;
  border:1px solid var(--line);
  background-color:var(--panel-2);
  color:var(--paper);
  font-family:var(--mono);
  font-size:.71rem;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;
  height:10px;
  border-top:2px solid var(--lime);
  border-bottom:2px solid var(--lime);
}
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:50%;
  height:2px;
  margin-top:-1px;
  background:var(--lime);
  transition:opacity .18s ease;
}
.site-header[data-open] .nav-toggle__bars::after{opacity:0}

.header-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:0 50%;
  opacity:.9;
  pointer-events:none;
}

/* =========================================================
   按钮
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.45rem;
  padding:.72rem 1.1rem;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background-color:var(--panel-2);
  color:var(--paper);
  font-family:var(--mono);
  font-size:.75rem;
  letter-spacing:.1em;
  line-height:1.2;
  text-align:center;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:hover{
  color:var(--lime);
  border-color:var(--lime);
  transform:translateY(-1px);
}
.btn--accent{
  background-color:var(--lime);
  border-color:var(--lime);
  color:var(--band-ink);
  font-weight:700;
}
.btn--accent:hover{
  background-color:var(--orange);
  border-color:var(--orange);
  color:var(--band-ink);
}
.btn--ghost{
  background-color:transparent;
  color:var(--paper);
  border-color:var(--line);
}
.btn--ghost:hover{
  color:var(--teal);
  border-color:var(--teal);
  background-color:rgba(55,224,194,.06);
}
.btn--sm{
  padding:.46rem .72rem;
  font-size:.69rem;
  letter-spacing:.08em;
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{
  margin:0;
  background-color:var(--panel);
  background-image:repeating-linear-gradient(90deg,rgba(52,70,61,.22) 0 1px,transparent 1px 96px);
  border-top:1px solid var(--line);
  color:var(--silver);
}
.footer-rule{
  position:relative;
  height:3px;
  background-color:rgba(52,70,61,.8);
}
.footer-rule::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  height:100%;
  width:160px;
  background:var(--lime);
}
.footer-rule::after{
  content:"";
  position:absolute;
  left:160px;
  top:0;
  height:100%;
  width:48px;
  background:var(--orange);
}

.footer-lead{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  align-items:end;
  gap:clamp(1rem,3vw,3rem);
  padding-block:clamp(2rem,4vw,3.2rem) clamp(1.4rem,3vw,2.2rem);
  border-bottom:1px solid var(--line-soft);
}
.footer-lead__line{
  font-family:var(--display);
  font-size:clamp(1.45rem,3.4vw,2.45rem);
  font-weight:700;
  line-height:1.12;
  letter-spacing:.01em;
  color:var(--paper);
}
.footer-lead__text{
  font-size:.92rem;
  line-height:1.75;
  color:var(--silver);
  max-width:52ch;
}

.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.5fr) minmax(0,1fr);
  gap:clamp(1.4rem,3vw,2.6rem);
  padding-block:clamp(1.8rem,3.5vw,2.8rem);
}
.footer-col{min-width:0}
.footer-col__title{
  padding-bottom:.6rem;
  margin-bottom:.9rem;
  border-bottom:1px solid var(--line-soft);
  font-family:var(--mono);
  font-size:.71rem;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--lime);
  text-transform:uppercase;
}
.footer-list{display:flex;flex-direction:column;gap:.55rem}
.footer-list--plain{gap:.72rem}
.footer-link{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  color:var(--silver);
  font-size:.9rem;
  line-height:1.5;
  text-decoration:none;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-link::before{
  content:"";
  flex:none;
  width:8px;
  height:1px;
  background:var(--line);
  transition:background-color .18s ease,width .18s ease;
}
.footer-link:hover{color:var(--paper);padding-left:.15rem}
.footer-link:hover::before{background:var(--lime);width:14px}

.footer-contact__row{
  display:grid;
  grid-template-columns:3.2rem minmax(0,1fr);
  gap:.6rem;
  font-size:.86rem;
  line-height:1.6;
}
.footer-contact__label{
  font-family:var(--mono);
  font-size:.67rem;
  letter-spacing:.1em;
  color:var(--teal);
  padding-top:.16rem;
}
.footer-contact__value{
  color:var(--paper);
  word-break:break-word;
}
.footer-note{
  margin-top:.9rem;
  max-width:36ch;
  font-size:.79rem;
  line-height:1.7;
  color:var(--silver-dim);
}
.footer-col--action{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:.6rem;
}
.footer-col--action .footer-note{margin-top:0;max-width:30ch}
.footer-col--action .btn{width:100%;max-width:220px}

.footer-bottom{
  background-color:var(--ink);
  border-top:1px solid var(--line-soft);
}
.footer-bottom__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.6rem 1.5rem;
  padding-block:1.1rem;
  font-family:var(--mono);
  font-size:.71rem;
  letter-spacing:.06em;
  color:var(--silver-dim);
}
.footer-icp{color:var(--silver)}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.35rem 1.1rem;
}
.footer-legal__item{display:inline-flex;align-items:center}
.footer-legal__link{
  color:var(--silver);
  text-decoration:none;
  padding-bottom:1px;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-legal__link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.footer-meta{color:var(--silver-dim)}

/* =========================================================
   通用区块与排版
   ========================================================= */
.section{padding-block:clamp(2.2rem,5vw,4.4rem)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:.6rem 1.5rem;
  padding-bottom:.9rem;
  margin-bottom:1.5rem;
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:.69rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--orange);
}
.section-title{
  font-family:var(--display);
  font-size:clamp(1.5rem,3vw,2.3rem);
  font-weight:700;
  line-height:1.08;
  letter-spacing:.01em;
  color:var(--paper);
}
.lede{
  max-width:64ch;
  font-size:1rem;
  line-height:1.75;
  color:var(--silver);
}

.band{
  background-color:var(--panel-2);
  border-block:1px solid var(--line);
  overflow:hidden;
}
.band__inner{
  display:flex;
  align-items:center;
  gap:clamp(1rem,3vw,2.5rem);
  padding-block:1rem;
}
.paper-band{
  background-color:var(--band);
  color:var(--band-ink);
}
.paper-band .section-title,
.paper-band .lede{color:var(--band-ink)}
.paper-band .lede{color:rgba(16,26,21,.78)}
.paper-band .eyebrow{color:#8A4A1E}

.grid{display:grid;gap:clamp(1rem,2vw,1.6rem)}
.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:minmax(200px,260px) minmax(0,1fr)}

.stack{display:flex;flex-direction:column;gap:var(--stack-gap,1rem)}

.mono{
  font-family:var(--mono);
  letter-spacing:.04em;
}
.text-link{
  color:var(--teal);
  text-decoration:none;
  border-bottom:1px solid rgba(55,224,194,.4);
  transition:color .18s ease,border-color .18s ease;
}
.text-link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.rule{
  height:1px;
  background-color:var(--line);
  border:0;
  margin-block:1.4rem;
}

/* ---------- 面板 / 卡片 / 标签 / 数据 ---------- */
.panel{
  background-color:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(1rem,2vw,1.5rem);
}
.panel__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:1rem;
  padding-bottom:.7rem;
  margin-bottom:.9rem;
  border-bottom:1px solid var(--line-soft);
}
.panel__title{
  font-family:var(--display);
  font-size:1.15rem;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--paper);
}
.card{
  position:relative;
  background-color:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(1rem,2vw,1.35rem);
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.card:hover{
  background-color:var(--panel-2);
  border-color:rgba(184,255,61,.55);
  transform:translateY(-2px);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.22rem .55rem;
  border:1px solid var(--line);
  border-radius:999px;
  background-color:rgba(22,36,30,.7);
  font-family:var(--mono);
  font-size:.65rem;
  letter-spacing:.1em;
  line-height:1.4;
  color:var(--silver);
}
.tag--lime{color:var(--lime);border-color:rgba(184,255,61,.45)}
.tag--orange{color:var(--orange);border-color:rgba(255,107,44,.45)}
.tag--teal{color:var(--teal);border-color:rgba(55,224,194,.45)}
.tag--amber{color:var(--amber);border-color:rgba(255,209,102,.45)}

.stat{
  display:flex;
  flex-direction:column;
  gap:.2rem;
}
.stat__value{
  font-family:var(--mono);
  font-size:clamp(1.6rem,4vw,2.6rem);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:var(--lime);
}
.stat__label{
  font-family:var(--mono);
  font-size:.67rem;
  letter-spacing:.12em;
  color:var(--silver-dim);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding-block:1rem;
  border-bottom:1px solid var(--line-soft);
}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4rem;
  font-family:var(--mono);
  font-size:.69rem;
  letter-spacing:.08em;
}
.breadcrumb__item{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  color:var(--silver-dim);
}
.breadcrumb__link{
  color:var(--silver);
  text-decoration:none;
  transition:color .18s ease;
}
.breadcrumb__link:hover{color:var(--lime)}
.breadcrumb__sep{color:var(--line)}
.breadcrumb__current{color:var(--paper)}

/* ---------- 图片容器基础 ---------- */
.media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background-color:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(52,70,61,.9);
  background:linear-gradient(180deg,rgba(7,17,13,0) 52%,rgba(7,17,13,.78) 100%);
}
.media--16x9{aspect-ratio:16/9}
.media--4x5{aspect-ratio:4/5}
.media--1x1{aspect-ratio:1/1}
.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06);
}
.media__overlay{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:1;
  padding:.75rem .9rem;
}
.media__caption{
  font-family:var(--mono);
  font-size:.67rem;
  letter-spacing:.08em;
  line-height:1.45;
  color:var(--paper);
}

/* =========================================================
   滚动显现
   ========================================================= */
html.has-js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease,transform .55s ease;
}
html.has-js [data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1100px){
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.3fr)}
  .footer-col--action{grid-column:1 / -1;flex-direction:row;flex-wrap:wrap;align-items:center}
  .footer-col--action .footer-note{flex:1 1 240px;max-width:52ch}
  .footer-col--action .btn{width:auto;max-width:none}
}

@media (max-width:900px){
  .header-bar__inner{padding-block:.35rem;justify-content:flex-end}
  .nav-toggle{display:inline-flex}
  .header-panel{
    display:none;
    order:2;
    flex:1 1 100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:.35rem 0 1rem;
    border-top:1px solid var(--line-soft);
    margin-top:.35rem;
  }
  .site-header[data-open] .header-panel{display:flex}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__link{
    width:100%;
    padding:.82rem .3rem;
    border-color:transparent;
    border-bottom:1px solid rgba(52,70,61,.55);
  }
  .primary-nav__link[aria-current="page"]{
    border-color:transparent;
    border-bottom-color:var(--lime);
    padding-left:.6rem;
  }
  .primary-nav__link:hover{padding-left:.6rem}
  .header-cta{align-self:stretch;margin-top:1rem}

  .grid--rail{grid-template-columns:minmax(0,1fr)}
  .footer-lead{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:760px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:1.6rem}
  .footer-col--action{grid-column:auto;flex-direction:column;align-items:flex-start}
  .footer-col--action .btn{width:100%;max-width:280px}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start;gap:.5rem}
  .footer-rule::before{width:96px}
  .footer-rule::after{left:96px;width:36px}
  .header-status{width:100%;justify-content:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:.4rem}
}

@media (max-width:520px){
  .brand__name{font-size:1.18rem}
  .brand__descriptor{font-size:.62rem}
  .header-status{font-size:.64rem}
  .footer-lead__line{font-size:1.35rem}
}

/* =========================================================
   可访问性：减弱动效
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.has-js [data-reveal]{opacity:1;transform:none}
  .header-status__dot{animation:none;box-shadow:none}
  .header-progress{display:none}
  .card:hover{transform:none}
  .btn:hover{transform:none}
}