:root{
  --bg:#070A12;
  --panel:rgba(18,22,40,.62);
  --panel2:rgba(10,14,28,.72);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.68);
  --line:rgba(255,255,255,.10);
  --shadow: 0 16px 60px rgba(0,0,0,.45);

  /* fx.js が毎回ランダムに上書き */
  --neon1:#00d1ff;
  --neon2:#b100ff;
  --neon3:#00ff7a;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 800px at 20% 10%, rgba(0,209,255,.12), transparent 55%),
              radial-gradient(1000px 700px at 80% 20%, rgba(177,0,255,.12), transparent 60%),
              radial-gradient(1000px 800px at 60% 90%, rgba(0,255,122,.10), transparent 60%),
              var(--bg);
  color: var(--text);
  overflow-x:hidden;
}

.bg-grid{
  pointer-events:none;
  position:fixed; inset:0;
  background:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity:.14;
  mask-image: radial-gradient(circle at 50% 40%, rgba(0,0,0,1), rgba(0,0,0,.15) 55%, rgba(0,0,0,0) 75%);
  animation: gridFlow 10s linear infinite;
}

@keyframes gridFlow{
  from{ background-position: 0 0, 0 0; }
  to{ background-position: 128px 96px, 96px 128px; }
}

#particles{
  pointer-events:none;
  position:fixed; inset:0;
  overflow:hidden;
}

.p{
  position:absolute;
  width:6px; height:6px;
  border-radius:999px;
  filter: blur(.2px);
  opacity:.55;
  animation: floatUp linear infinite;
}

@keyframes floatUp{
  from{ transform: translate3d(0, 0, 0); }
  to{ transform: translate3d(0, -140vh, 0); }
}

.topbar{
  position:sticky; top:0; z-index:20;
  backdrop-filter: blur(12px);
  background: rgba(7,10,18,.55);
  border-bottom: 1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between;
  padding: 12px 16px;
}

.brand{
  text-decoration:none;
  color: var(--text);
  font-weight: 700;
  letter-spacing:.2px;
  padding: 6px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(0,0,0,0), rgba(0,0,0,0));
  box-shadow: 0 0 0 1px rgba(255,255,255,.10) inset;
}

.nav{display:flex; gap:8px; flex-wrap:wrap}
.btn{
  text-decoration:none;
  color: var(--text);
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
.btn:hover{border-color: rgba(255,255,255,.22)}

.wrap{max-width: 980px; margin: 0 auto; padding: 20px 14px 70px}

.hero{
  padding: 18px 0 10px;
}
.h1{
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: .2px;
}
.h2{
  margin: 0;
  font-size: 18px;
}
.sub{margin:0; color: var(--muted); max-width: 70ch; line-height:1.6}

.card{
  background: linear-gradient(180deg, rgba(18,22,40,.68), rgba(10,14,28,.76));
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px;
  margin: 14px 0;
}

.card-h{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:10px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 10px;
}

.muted{color: var(--muted)}
.meta{color: rgba(255,255,255,.62); font-size: 12px; margin-left: 10px}
.list,.olist{margin:10px 0 0; padding-left: 18px}
.li{margin: 10px 0; line-height:1.5}
.li a{color: var(--text); text-decoration:none}
.li a:hover{ text-decoration: underline; text-decoration-color: var(--neon1); }

.article .kicker{
  color: rgba(255,255,255,.75);
  font-size: 12px;
  margin-bottom: 8px;
}
.meta-row{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin: 8px 0 12px}
.source{
  color: var(--text);
  text-decoration:none;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.source:hover{border-bottom-color: var(--neon2)}
.dot{opacity:.6}

.cta-row{display:flex; gap:10px; flex-wrap:wrap; margin-top: 10px}
.chip{
  display:inline-block;
  text-decoration:none;
  color: var(--text);
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
}
.chip:hover{
  border-color: rgba(255,255,255,.22);
  box-shadow: 0 0 0 1px rgba(0,0,0,0), 0 0 22px rgba(0,209,255,.12);
}

.article-body{
  line-height: 1.75;
  color: rgba(255,255,255,.88);
}
.article-body h2{
  margin-top: 20px;
  font-size: 16px;
  color: rgba(255,255,255,.95);
}
.article-body ul{padding-left: 18px}
.article-body a{color: var(--text); text-decoration: underline; text-decoration-color: rgba(255,255,255,.25)}
.article-body a:hover{ text-decoration-color: var(--neon3); }

.ad-slot{
  border-radius: 16px;
  border: 1px dashed rgba(255,255,255,.18);
  background: rgba(255,255,255,.02);
  padding: 12px;
  margin: 14px 0;
  overflow:hidden;
  min-height: 62px;
}
.ad-top{ margin-top: 0; }

.footer{
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,.10);
  color: rgba(255,255,255,.68);
}
.foot-links{display:flex; gap:12px; flex-wrap:wrap}
.foot-links a{color: rgba(255,255,255,.78); text-decoration:none}
.foot-links a:hover{text-decoration:underline; text-decoration-color: var(--neon1)}
.foot-meta{margin-top: 10px; display:flex; gap:10px; flex-wrap:wrap}

.pill-row{display:flex; gap:10px; flex-wrap:wrap; margin-top: 12px}
.pill{
  display:inline-block; padding: 9px 12px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  text-decoration:none; color: var(--text);
}
.pill:hover{border-color: rgba(255,255,255,.22)}