:root{
  --color-night:#0A0B12;
  --color-deep:#111629;
  --color-purple:#A855F7;
  --color-cyan:#00E5FF;
  --color-gold:#FFD700;
  --color-paper:#F2F2F2;
  --color-muted:#B0B0B0;
  --color-panel:#1D2333;
  --color-danger:#FF4D4F;
  --color-success:#00FF66;
  --font-heading:'Impact','Arial Black','Noto Sans SC Black','Microsoft YaHei',sans-serif;
  --font-body:'Noto Sans SC','WeiRuanYaHei','PingFang SC',sans-serif;
  --font-mono:'JetBrains Mono','Consolas',monospace;
  --container:1240px;
  --header-h:84px;
  --radius:18px;
  --radius-sm:10px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow-purple:0 0 22px rgba(168,85,247,.42);
  --glow-cyan:0 0 20px rgba(0,229,255,.32);
}

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

html{
  color-scheme:dark;
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background:
    radial-gradient(circle at 10% 8%,rgba(168,85,247,.28),transparent 32%),
    radial-gradient(circle at 92% 10%,rgba(0,229,255,.14),transparent 26%),
    radial-gradient(circle at 60% 86%,rgba(168,85,247,.12),transparent 30%),
    linear-gradient(180deg,var(--color-night) 0%,var(--color-deep) 100%);
  color:var(--color-paper);
  font-family:var(--font-body);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

body,
h1,h2,h3,h4,h5,h6,
p,ul,ol,dl,blockquote,
figure,fieldset{
  margin:0;
}

ul,ol{
  padding:0;
}

li{
  list-style:none;
}

a{
  color:var(--color-cyan);
  text-decoration:none;
  transition:color .2s ease;
}

a:hover{
  color:var(--color-gold);
}

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

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-heading);
  line-height:1.08;
  font-weight:700;
  letter-spacing:.02em;
}

h1{
  font-size:clamp(3rem,8vw,6.8rem);
}

h2{
  font-size:clamp(2.1rem,5vw,3.6rem);
}

h3{
  font-size:clamp(1.3rem,2.5vw,1.7rem);
}

p{
  margin:0 0 1em;
}

code,
kbd,
.data,
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}

::selection{
  background:var(--color-gold);
  color:var(--color-night);
}

:focus-visible{
  outline:2px solid var(--color-cyan);
  outline-offset:4px;
}

#main-content{
  flex:1 0 auto;
  scroll-margin-top:calc(var(--header-h) + 16px);
}

#main-content:focus{
  outline:none;
}

.skip-link{
  position:fixed;
  left:1rem;
  top:-100%;
  z-index:1000;
  padding:.8rem 1.2rem;
  background:var(--color-gold);
  color:var(--color-night);
  font-weight:700;
  border-radius:0 0 12px 12px;
  box-shadow:0 8px 30px rgba(0,0,0,.4);
  transition:top .2s ease;
}

.skip-link:focus{
  top:0;
}

.site-header{
  position:sticky;
  top:0;
  z-index:600;
  background:linear-gradient(180deg,rgba(10,11,18,.52),rgba(17,22,41,.94));
  border-bottom:1px solid rgba(168,85,247,.34);
  box-shadow:0 10px 40px rgba(0,0,0,.25);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.site-header__inner{
  position:relative;
  width:min(100% - 2rem,var(--container));
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.5rem;
  min-height:var(--header-h);
}

.site-header__brand{
  display:inline-flex;
  align-items:center;
  gap:.85rem;
  text-decoration:none;
}

.site-header__brand-mark{
  font-family:var(--font-heading);
  font-size:2rem;
  font-weight:900;
  line-height:1;
  letter-spacing:.04em;
  color:var(--color-gold);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:2.8rem;
  height:2.8rem;
  padding:0 .25rem;
  background:linear-gradient(145deg,rgba(255,215,0,.14),rgba(255,215,0,.03));
  border:1px solid rgba(255,215,0,.65);
  border-radius:10px;
  box-shadow:inset 0 0 14px rgba(255,215,0,.12),0 0 16px rgba(255,215,0,.18);
  transform:rotate(-2deg);
  transition:transform .2s ease,box-shadow .2s ease;
}

.site-header__brand:hover .site-header__brand-mark{
  transform:rotate(2deg) translateY(-2px);
  box-shadow:inset 0 0 14px rgba(255,215,0,.18),0 0 26px rgba(255,215,0,.28);
}

.site-header__brand-text{
  font-family:var(--font-heading);
  font-size:1.35rem;
  font-weight:700;
  letter-spacing:.24em;
  color:var(--color-paper);
  text-shadow:0 0 18px rgba(168,85,247,.55);
}

.site-nav{
  margin-left:auto;
}

.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:clamp(.4rem,1.6vw,1.8rem);
  margin:0;
  padding:0;
  list-style:none;
}

.site-nav__link{
  position:relative;
  display:inline-block;
  padding:.5rem .1rem;
  color:var(--color-paper);
  font-size:.96rem;
  font-weight:600;
  letter-spacing:.08em;
  text-decoration:none;
  white-space:nowrap;
}

.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--color-cyan),var(--color-purple));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s ease;
}

.site-nav__link:hover,
.site-nav__link:focus-visible{
  color:var(--color-cyan);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
}

.site-nav__link[aria-current="page"]{
  color:var(--color-gold);
  text-shadow:0 0 14px rgba(255,215,0,.35);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.65rem 1.1rem;
  background:rgba(10,11,18,.55);
  border:1px solid rgba(0,229,255,.45);
  border-radius:999px;
  color:var(--color-paper);
  font-family:var(--font-body);
  font-size:.88rem;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}

.nav-toggle:hover{
  background:rgba(168,85,247,.12);
  border-color:var(--color-purple);
  box-shadow:var(--glow-purple);
}

.nav-toggle__label{
  letter-spacing:.12em;
}

.nav-toggle__icon{
  position:relative;
  width:18px;
  height:14px;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after,
.nav-toggle__line{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--color-paper);
  border-radius:2px;
  transition:transform .25s ease,background .25s ease,top .25s ease;
}

.nav-toggle__icon::before{
  top:0;
}

.nav-toggle__line{
  top:6px;
}

.nav-toggle__icon::after{
  top:12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line{
  background:transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before{
  top:6px;
  background:var(--color-cyan);
  transform:rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after{
  top:6px;
  background:var(--color-cyan);
  transform:rotate(-45deg);
}

.site-header__progress{
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  max-width:100%;
  height:2px;
  z-index:3;
  background:linear-gradient(90deg,var(--color-cyan),var(--color-purple),var(--color-gold));
  box-shadow:0 0 12px rgba(0,229,255,.6);
  pointer-events:none;
}

.site-footer{
  position:relative;
  margin-top:auto;
  background:linear-gradient(180deg,#0B0F1D 0%,#05060B 100%);
  border-top:1px solid rgba(168,85,247,.35);
  overflow:hidden;
}

.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 12% 0%,rgba(168,85,247,.16),transparent 32%),
    radial-gradient(circle at 90% 0%,rgba(0,229,255,.1),transparent 28%);
  pointer-events:none;
}

.site-footer__inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.8fr) minmax(0,1fr);
  gap:2.5rem;
  width:min(100% - 2rem,var(--container));
  margin-inline:auto;
  padding:4.5rem 0 2.5rem;
}

.site-footer__lead{
  display:grid;
  gap:1.1rem;
  align-content:start;
}

.site-footer__brand{
  font-family:var(--font-heading);
  font-size:2.25rem;
  font-weight:900;
  line-height:1;
  letter-spacing:.04em;
  color:var(--color-gold);
}

.site-footer__brand span{
  color:var(--color-paper);
}

.site-footer__statement{
  max-width:38rem;
  color:var(--color-muted);
}

.site-footer__title{
  margin:0 0 1.1rem;
  padding-left:.75rem;
  border-left:3px solid var(--color-purple);
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-size:.8rem;
  font-weight:400;
  letter-spacing:.18em;
  text-transform:uppercase;
}

.site-footer__nav,
.site-footer__contact{
  display:grid;
  align-content:start;
}

.site-footer__links{
  display:grid;
  gap:.65rem;
  margin:0;
  padding:0;
  list-style:none;
}

.site-footer__links a{
  color:var(--color-paper);
  font-weight:500;
}

.site-footer__links a:hover{
  color:var(--color-purple);
}

.site-footer__contact p{
  margin:.45rem 0;
  color:var(--color-muted);
  font-size:.95rem;
  line-height:1.6;
}

.site-footer__contact .site-footer__title{
  margin-bottom:1.1rem;
}

.site-footer__copyright{
  grid-column:1 / -1;
  margin:2rem 0 0;
  padding-top:1.4rem;
  border-top:1px solid rgba(255,255,255,.08);
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:.85rem;
  letter-spacing:.05em;
}

.site-section{
  position:relative;
  padding:clamp(3rem,8vw,6.5rem) 0;
}

.site-section--tight{
  padding-block:clamp(2rem,4vw,3.5rem);
}

.section-head{
  max-width:60rem;
  margin-bottom:2.5rem;
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  margin-bottom:1rem;
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.22em;
  text-transform:uppercase;
}

.kicker::before{
  content:"";
  width:2rem;
  height:1px;
  background:var(--color-purple);
}

.display-title{
  font-size:clamp(2.6rem,7vw,6.4rem);
  line-height:1;
}

.display-title--neon{
  color:var(--color-paper);
  text-shadow:0 0 16px rgba(0,229,255,.55),0 0 46px rgba(168,85,247,.4);
}

.lead{
  max-width:60rem;
  color:var(--color-muted);
  font-size:1.08rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6rem;
  padding:.9rem 1.5rem;
  border:1px solid transparent;
  border-radius:999px;
  color:var(--color-paper);
  font-family:var(--font-body);
  font-weight:700;
  letter-spacing:.08em;
  text-align:center;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}

.btn--primary{
  background:linear-gradient(135deg,var(--color-purple),#7B2FF7);
  border-color:rgba(255,255,255,.12);
  color:#fff;
}

.btn--primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(168,85,247,.35);
}

.btn--ghost{
  background:rgba(0,229,255,.06);
  border-color:rgba(0,229,255,.55);
  color:var(--color-cyan);
}

.btn--ghost:hover{
  background:rgba(0,229,255,.14);
  color:var(--color-cyan);
  transform:translateY(-2px);
  box-shadow:var(--glow-cyan);
}

.btn--gold{
  background:linear-gradient(135deg,var(--color-gold),#FFB300);
  color:var(--color-night);
}

.btn--gold:hover{
  color:var(--color-night);
  transform:translateY(-2px);
  box-shadow:0 0 24px rgba(255,215,0,.35);
}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4rem;
  margin:0 0 2rem;
  padding:.6rem 0;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:.82rem;
}

.breadcrumbs__sep{
  color:var(--color-muted);
  opacity:.6;
}

.breadcrumbs a{
  color:var(--color-cyan);
}

.breadcrumbs a:hover{
  color:var(--color-gold);
}

.grid{
  display:grid;
  gap:1.75rem;
}

.grid--2{
  grid-template-columns:repeat(2,minmax(0,1fr));
}

.grid--3{
  grid-template-columns:repeat(3,minmax(0,1fr));
}

.card{
  position:relative;
  overflow:hidden;
  padding:clamp(1.2rem,3vw,2rem);
  border:1px solid rgba(168,85,247,.22);
  border-radius:var(--radius);
  background:linear-gradient(145deg,var(--color-deep),#0D1220);
  box-shadow:0 0 0 rgba(0,0,0,0);
  transition:transform .25s ease,border-color .3s ease,background .3s ease,box-shadow .3s ease;
}

.card::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 100% 0%,rgba(0,229,255,.1),transparent 40%);
  pointer-events:none;
}

.card:hover{
  transform:translateY(-4px);
  border-color:var(--color-purple);
  background:var(--color-panel);
  box-shadow:0 16px 40px rgba(0,0,0,.35),var(--glow-purple);
}

.card__title{
  margin-bottom:.5rem;
}

.card__meta{
  display:block;
  margin-bottom:.7rem;
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.08em;
}

.card__body{
  margin:0;
  color:var(--color-muted);
}

.card__footer{
  margin-top:1.25rem;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.35rem .8rem;
  border:1px solid rgba(0,229,255,.35);
  border-radius:999px;
  background:rgba(0,229,255,.1);
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-size:.78rem;
}

.tag--gold{
  border-color:rgba(255,215,0,.4);
  background:rgba(255,215,0,.08);
  color:var(--color-gold);
}

.tag--purple{
  border-color:rgba(168,85,247,.45);
  background:rgba(168,85,247,.12);
  color:#E3B6FF;
}

.notice{
  display:flex;
  align-items:flex-start;
  gap:1rem;
  padding:1rem 1.25rem;
  border:1px solid rgba(0,229,255,.35);
  border-radius:var(--radius);
  background:rgba(0,229,255,.06);
  color:var(--color-paper);
}

.notice__mark{
  flex:0 0 auto;
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-weight:700;
  line-height:1.4;
}

.notice--gold{
  border-color:rgba(255,215,0,.45);
  background:rgba(255,215,0,.07);
}

.notice--gold .notice__mark{
  color:var(--color-gold);
}

.notice--red{
  border-color:rgba(255,77,79,.5);
  background:rgba(255,77,79,.08);
}

.notice--red .notice__mark{
  color:var(--color-danger);
}

.notice--green{
  border-color:rgba(0,255,102,.45);
  background:rgba(0,255,102,.07);
}

.notice--green .notice__mark{
  color:var(--color-success);
}

.index-list{
  margin:0;
  padding:0;
  list-style:none;
  border-top:1px solid rgba(255,255,255,.08);
}

.index-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:.95rem 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}

.index-list__index{
  color:var(--color-purple);
  font-family:var(--font-mono);
  font-size:.85rem;
}

.index-list a{
  color:var(--color-paper);
  font-weight:600;
}

.index-list a:hover{
  color:var(--color-purple);
}

.index-list__meta{
  white-space:nowrap;
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:.8rem;
}

.table-shell{
  overflow-x:auto;
  border:1px solid rgba(168,85,247,.28);
  border-radius:var(--radius);
  background:rgba(17,22,41,.65);
}

.table{
  width:100%;
  min-width:600px;
  border-collapse:collapse;
  font-size:.95rem;
}

.table th,
.table td{
  padding:.85rem 1rem;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid rgba(255,255,255,.06);
}

.table th{
  background:rgba(0,229,255,.04);
  color:var(--color-cyan);
  font-family:var(--font-mono);
  font-size:.8rem;
  letter-spacing:.06em;
}

.table tbody tr:last-child td{
  border-bottom:0;
}

.table tbody tr:hover{
  background:rgba(168,85,247,.08);
}

.table .num{
  color:var(--color-gold);
  font-family:var(--font-mono);
}

.media-shell{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  aspect-ratio:4 / 3;
  border:1px solid rgba(168,85,247,.35);
  border-radius:var(--radius);
  background:
    radial-gradient(circle at 80% 20%,rgba(168,85,247,.35),transparent 40%),
    radial-gradient(circle at 20% 70%,rgba(0,229,255,.2),transparent 40%),
    var(--color-deep);
}

.media-shell::after{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.03) 0 2px,transparent 2px 10px);
  mix-blend-mode:overlay;
  pointer-events:none;
}

.media-shell img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}

.media-shell__placeholder{
  position:relative;
  z-index:2;
  padding:1rem;
  text-align:center;
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:.9rem;
}

.media-shell__placeholder::before{
  content:"◈";
  display:block;
  margin-bottom:.25rem;
  color:var(--color-purple);
  font-size:2rem;
  text-shadow:0 0 20px var(--color-cyan);
}

.media-shell__caption{
  position:absolute;
  left:1rem;
  bottom:1rem;
  z-index:2;
  padding:.3rem .8rem;
  border:1px solid rgba(255,215,0,.4);
  border-radius:999px;
  background:rgba(10,11,18,.75);
  color:var(--color-gold);
  font-family:var(--font-mono);
  font-size:.8rem;
}

.media-shell--landscape{
  aspect-ratio:16 / 9;
}

.media-shell--portrait{
  aspect-ratio:3 / 4;
}

.media-shell--slim{
  aspect-ratio:21 / 9;
}

.has-js [data-reveal]{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1);
  will-change:opacity,transform;
}

.has-js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

@media (max-width: 900px){
  .nav-toggle{
    display:inline-flex;
  }

  .site-nav{
    position:absolute;
    top:calc(100% + 8px);
    left:1rem;
    right:1rem;
    margin-left:0;
    padding:.5rem;
    border:1px solid rgba(168,85,247,.5);
    border-radius:var(--radius);
    background:rgba(10,11,18,.98);
    box-shadow:var(--shadow);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }

  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }

  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }

  .site-nav__item + .site-nav__item{
    border-top:1px solid rgba(255,255,255,.06);
  }

  .site-nav__link{
    display:block;
    padding:.9rem 1rem;
    font-size:1.05rem;
  }

  .site-nav__link::after{
    display:none;
  }

  .site-footer__inner{
    grid-template-columns:1fr;
    gap:2rem;
    padding-top:3.5rem;
  }

  .site-footer__copyright{
    grid-column:auto;
  }

  .grid--2,
  .grid--3{
    grid-template-columns:1fr;
  }
}

@media (max-width: 640px){
  :root{
    --header-h:70px;
  }

  .site-header__brand-mark{
    font-size:1.6rem;
    min-width:2.3rem;
    height:2.3rem;
  }

  .site-header__brand-text{
    font-size:1.1rem;
    letter-spacing:.2em;
  }

  .nav-toggle__label{
    display:none;
  }

  .site-footer__inner{
    gap:1.5rem;
    padding-top:3rem;
  }
}

@media (prefers-reduced-motion: reduce){
  html{
    scroll-behavior:auto;
  }

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }

  .has-js [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }
}