:root{
  --bg-deep:#0B132B;
  --bg-matte:#1B1F2A;
  --neon:#C7FF36;
  --white:#F7F9FC;
  --cyan:#00E5FF;
  --violet:#7B61FF;
  --grey:#AEB6C4;
  --green:#2CDA7B;
  --amber:#FFC247;
  --red:#FF4D5E;
  --border:rgba(247,249,252,.1);
  --font-base:'PingFang SC','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
  --font-data:'DIN Alternate','Roboto Mono','SFMono-Regular',Consolas,monospace;
  --max-width:1200px;
  --header-h:72px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,dl,dd,blockquote,figure{margin:0}
ul,ol{padding:0}
img{max-width:100%;display:block}
input,button,select,textarea{font:inherit}
body{
  background:var(--bg-deep);
  color:var(--white);
  font-family:var(--font-base);
  line-height:1.7;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(circle at 18% 0%, rgba(123,97,255,.18), transparent 38%),
    radial-gradient(circle at 82% 100%, rgba(0,229,255,.08), transparent 42%);
}
body.nav-open{overflow:hidden}
[hidden]{display:none!important}
h1,h2,h3,h4{
  line-height:1.2;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--white);
}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--neon)}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
:focus:not(:focus-visible){outline:none}

.skip-link{
  position:fixed;
  top:-100px;
  left:1rem;
  z-index:200;
  background:var(--neon);
  color:var(--bg-deep);
  padding:.6rem 1rem;
  border-radius:2px;
  font-weight:700;
  font-size:.9rem;
  transition:top .2s ease;
}
.skip-link:focus{top:1rem}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:0;
  height:3px;
  z-index:180;
  background:linear-gradient(90deg,var(--neon),var(--cyan));
  pointer-events:none;
}

.site-header{
  position:relative;
  z-index:50;
  background:rgba(11,19,43,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.site-header__inner{
  max-width:var(--max-width);
  margin:0 auto;
  height:var(--header-h);
  padding:0 1.25rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:2rem;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:.5rem;
  color:var(--white);
  text-transform:uppercase;
  white-space:nowrap;
}
.brand__mark{
  font-family:var(--font-data);
  font-size:1.8rem;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--neon);
  line-height:1;
}
.brand__name{
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--white);
}
.brand__tag{
  display:none;
  font-size:.68rem;
  letter-spacing:.02em;
  color:var(--grey);
  border-left:1px solid var(--border);
  padding-left:.8rem;
}
@media(min-width:768px){
  .brand__tag{display:inline}
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  background:rgba(255,255,255,.02);
  border:1px solid var(--border);
  color:var(--white);
  padding:.45rem .7rem;
  border-radius:2px;
  font-size:.78rem;
  line-height:1;
  cursor:pointer;
  z-index:70;
}
.nav-toggle__icon{
  position:relative;
  width:16px;
  height:12px;
}
.nav-toggle__icon::before,
.nav-toggle__icon::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--neon);
  transition:transform .25s ease,top .25s ease,bottom .25s ease;
}
.nav-toggle__icon::before{top:0}
.nav-toggle__icon::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before{top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after{bottom:5px;transform:rotate(-45deg)}

.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  gap:1.2rem;
  list-style:none;
  margin:0;
  padding:0;
  align-items:center;
}
.site-nav__list a{
  color:var(--grey);
  font-size:.9rem;
  font-weight:600;
  padding:.35rem 0;
  position:relative;
  transition:color .2s ease;
}
.site-nav__list a:hover{color:var(--neon)}
.site-nav__list a[aria-current="page"]{color:var(--white)}
.site-nav__list a[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--neon);
}
.site-nav__aside{display:none}

@media(max-width:991px){
  .nav-toggle{
    display:inline-flex;
  }
  .site-nav{
    position:fixed;
    top:0;
    left:0;
    right:0;
    bottom:0;
    z-index:45;
    background:rgba(11,19,43,.98);
    backdrop-filter:blur(8px);
    display:flex;
    align-items:center;
    justify-content:center;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
    overflow-y:auto;
    padding:5.5rem 1.5rem 4rem;
  }
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .site-nav__list{
    flex-direction:column;
    gap:.2rem;
    text-align:center;
    width:100%;
  }
  .site-nav__list a{
    display:block;
    padding:.55rem 1.5rem;
    font-size:1.4rem;
    color:var(--white);
  }
  .site-nav__list a[aria-current="page"]{color:var(--neon)}
  .site-nav__list a[aria-current="page"]::after{display:none}
  .site-nav__aside{
    display:block;
    position:absolute;
    bottom:3rem;
    left:1.5rem;
    right:1.5rem;
    font-size:.78rem;
    letter-spacing:.06em;
    color:var(--grey);
    text-align:center;
    border-top:1px solid var(--border);
    padding-top:1rem;
  }
}

.site-footer{
  background:var(--bg-matte);
  border-top:1px solid var(--border);
  margin-top:4rem;
}
.site-footer__inner{
  max-width:var(--max-width);
  margin:0 auto;
  padding:3rem 1.25rem 6rem;
  display:grid;
  gap:2rem;
}
.site-footer__brand .brand--footer .brand__mark{font-size:1.5rem}
.trust-statement{
  border-left:2px solid var(--neon);
  background:rgba(255,255,255,.02);
  padding:.5rem .9rem;
  font-size:.85rem;
  color:var(--grey);
}
.site-footer__text{
  font-size:.85rem;
  color:var(--grey);
  margin-top:.5rem;
}
.site-footer__columns{
  display:grid;
  gap:1.6rem;
}
.site-footer__col h2{
  font-size:.76rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--neon);
  margin-bottom:.8rem;
}
.site-footer__col ul{
  list-style:none;
  display:grid;
  gap:.4rem;
}
.site-footer__col a,.site-footer__col p{
  font-size:.9rem;
  color:var(--grey);
}
.site-footer__col a:hover{color:var(--neon)}
.site-footer__bottom{
  grid-column:1 / -1;
  border-top:1px solid var(--border);
  padding-top:1.2rem;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:.5rem 1rem;
  font-size:.78rem;
  color:var(--grey);
}
@media(min-width:860px){
  .site-footer__inner{
    grid-template-columns:repeat(4,1fr);
    padding-bottom:4rem;
  }
  .site-footer__columns{
    grid-column:2 / -1;
    grid-template-columns:repeat(3,1fr);
    gap:1rem;
  }
}

.tabbar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:40;
  display:flex;
  background:rgba(27,31,42,.96);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--border);
}
.tabbar__item{
  flex:1;
  text-align:center;
  padding:.7rem .25rem .65rem;
  font-size:.72rem;
  color:var(--grey);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.tabbar__item:hover{color:var(--white)}
.tabbar__item[aria-current="page"]{
  color:var(--neon);
  border-bottom-color:var(--neon);
  font-weight:700;
}
@media(min-width:768px){
  .tabbar{display:none}
}

.content{
  max-width:var(--max-width);
  margin:0 auto;
  padding:2rem 1.25rem 3.5rem;
}
.content--narrow{
  max-width:780px;
}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:.35rem .75rem;
  list-style:none;
  padding:.65rem 0;
  font-size:.82rem;
  color:var(--grey);
}
.breadcrumbs li + li::before{
  content:"/";
  color:var(--grey);
  margin-right:.75rem;
}
.breadcrumbs a{color:var(--cyan)}
.breadcrumbs a:hover{color:var(--neon)}
.breadcrumbs [aria-current="page"]{color:var(--white)}

.btn{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.7rem 1.3rem;
  border-radius:2px;
  font-weight:700;
  font-size:.9rem;
  line-height:1;
  cursor:pointer;
  border:1px solid transparent;
  background:transparent;
  color:var(--white);
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{
  background:var(--neon);
  color:var(--bg-deep);
}
.btn--primary:hover{
  background:var(--white);
  color:var(--bg-deep);
  transform:translateY(-2px);
}
.btn--ghost{
  border-color:var(--border);
  color:var(--white);
}
.btn--ghost:hover{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateY(-2px);
}

.section-label{
  display:inline-block;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--neon);
  border:1px solid rgba(199,255,54,.4);
  padding:.2rem .55rem;
  border-radius:1px;
  margin-bottom:1rem;
}
.lede{
  font-size:1.15rem;
  color:var(--grey);
  max-width:60ch;
  border-left:2px solid var(--cyan);
  padding-left:1rem;
  margin:1.5rem 0;
}
.note{
  position:relative;
  font-size:.85rem;
  color:var(--grey);
  border:1px solid var(--border);
  background:rgba(255,255,255,.02);
  padding:.9rem 1rem;
  margin:1.8rem 0;
}
.note::before{
  content:var(--note-label,"旁注");
  position:absolute;
  top:-.6rem;
  left:.7rem;
  background:var(--bg-deep);
  padding:0 .3rem;
  font-size:.66rem;
  letter-spacing:.14em;
  color:var(--violet);
  text-transform:uppercase;
}

.frame{
  position:relative;
  background:linear-gradient(145deg,#202636,#151a28);
  border:1px solid var(--border);
  border-radius:2px;
  overflow:hidden;
  min-height:220px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--grey);
  font-size:.8rem;
  letter-spacing:.1em;
}
.frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,transparent 0%,transparent 45%,rgba(0,229,255,.16) 50%,transparent 55%);
  transform:translateX(-100%);
  transition:transform .8s ease;
}
.frame:hover::after{transform:translateX(100%)}
.frame--hero{min-height:320px}
.frame--side{min-height:180px}
.frame__placeholder{
  position:relative;
  z-index:1;
  background:rgba(11,19,43,.55);
  padding:.4rem .8rem;
  border-left:2px solid var(--cyan);
}

.data-card{
  position:relative;
  background:var(--bg-matte);
  border:1px solid var(--border);
  border-radius:2px;
  padding:1.2rem 1.4rem;
  box-shadow:0 10px 24px rgba(0,0,0,.2);
}
.data-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:32px;
  height:2px;
  background:var(--neon);
}
.data-card__label{
  font-size:.75rem;
  color:var(--grey);
  letter-spacing:.12em;
  text-transform:uppercase;
}
.data-card__number{
  font-family:var(--font-data);
  font-size:2.8rem;
  font-weight:700;
  line-height:1;
  color:var(--white);
  margin:.4rem 0 .2rem;
  font-variant-numeric:tabular-nums;
}
.data-card__number--amber{color:var(--amber)}
.data-card__number--red{color:var(--red)}
.data-card__number--green{color:var(--green)}
.data-card--tilt{transform:rotate(-1deg)}
.data-card--float{
  transition:transform .3s ease,box-shadow .3s ease;
}
.data-card--float:hover{
  transform:translateY(-6px);
  box-shadow:0 18px 36px rgba(0,229,255,.18);
}

.grid{
  display:grid;
  gap:1.2rem;
}
.grid--thirds{
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.layout-split{
  display:grid;
  gap:2rem;
  align-items:start;
}
@media(min-width:768px){
  .layout-split{
    grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);
  }
}

.index{
  font-size:.85rem;
}
.index__title{
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--violet);
  font-weight:800;
  margin-bottom:.6rem;
}
.index__list{
  list-style:none;
  display:grid;
  gap:.3rem;
}
.index__link{
  color:var(--grey);
  border-bottom:1px solid transparent;
  padding:.15rem 0;
  transition:color .2s ease,border-color .2s ease;
}
.index__link:hover,
.index__link.is-current{
  color:var(--neon);
  border-bottom-color:var(--neon);
}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  margin:1.2rem 0;
}
.filter-btn{
  background:transparent;
  border:1px solid var(--border);
  color:var(--grey);
  padding:.4rem .9rem;
  font-size:.8rem;
  border-radius:1px;
  cursor:pointer;
  letter-spacing:.04em;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter-btn:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}
.filter-btn.is-active{
  background:var(--neon);
  border-color:var(--neon);
  color:var(--bg-deep);
  font-weight:700;
}

.article-list{
  list-style:none;
  display:grid;
  gap:1rem;
}
.article-list a{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  color:var(--white);
  font-weight:700;
  border-bottom:1px solid var(--border);
  padding:.6rem 0;
  transition:color .2s ease,border-color .2s ease;
}
.article-list a:hover{
  color:var(--neon);
  border-bottom-color:var(--neon);
}
.article-list__meta{
  font-family:var(--font-data);
  font-size:.72rem;
  color:var(--grey);
  white-space:nowrap;
}

.live-indicator{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--cyan);
}
.live-indicator::before{
  content:"";
  width:.5rem;
  height:.5rem;
  border-radius:50%;
  background:var(--cyan);
  animation:live-pulse 2s ease infinite;
}
@keyframes live-pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(0,229,255,.4)}
  50%{opacity:.6;box-shadow:0 0 0 6px rgba(0,229,255,0)}
}

@media(max-width:480px){
  .data-card__number{font-size:2.2rem}
  .lede{font-size:1.05rem}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
  .frame::after{display:none}
  .data-card--float:hover{transform:none}
}