/* 流星群ガイド → 流星群3Dシミュレーターの導線 v1.0.0（/meteor-shower/<流星群>/index.html で共通）
   .uy3d        … 雑学7選の直後に置く軌道図カード
   .uy3d-line   … 「流れ星が見えない？」の雲の項目に置く1行
   .uy3d-inline … 雑学の中の短いリンク
   各ページの見出し（h2）の飾りや p の文字色はページ側の指定があるので、ここで必要な分だけ上書きする。 */
.uy3d{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:clamp(18px,3vw,32px);align-items:center;margin:44px 0;padding:clamp(20px,3.2vw,32px);border:1px solid rgba(255,211,122,.26);border-radius:24px;background:radial-gradient(circle at 78% 42%,rgba(255,159,90,.1),transparent 40%),radial-gradient(circle at 8% 92%,rgba(167,139,250,.12),transparent 36%),linear-gradient(150deg,rgba(21,18,50,.95),rgba(4,8,22,.97));box-shadow:0 22px 70px rgba(0,0,0,.28);color:#f7fbff;scroll-margin-top:85px}
.uy3d-copy{min-width:0}
.uy3d .uy3d-copy>p.uy3d-kicker{display:flex;align-items:flex-start;gap:8px;margin:0;color:#ffd37a;font-size:.76rem;font-weight:900;letter-spacing:.06em;line-height:1.6}
.uy3d .uy3d-kicker::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:.5em;border-radius:50%;background:currentColor;box-shadow:0 0 14px currentColor}
.uy3d h2{display:block;margin:10px 0 0;color:#fff;font-size:clamp(1.3rem,2.9vw,1.8rem);line-height:1.38;letter-spacing:-.02em;font-weight:900}
.uy3d h2::before{content:none;display:none}
.uy3d .uy3d-copy>p{margin:12px 0 0;color:rgba(231,240,255,.8);font-size:.93rem;line-height:1.85}
.uy3d-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.uy3d-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 18px;border:1px solid transparent;border-radius:14px;font-weight:900;font-size:.88rem;line-height:1.35;text-align:center;text-decoration:none!important;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease}
.uy3d-btn--main{background:linear-gradient(115deg,#ffe29c,#ffd37a 44%,#ff9f5a);color:#261604!important;box-shadow:0 14px 36px rgba(255,163,70,.22)}
.uy3d-btn--main:hover{transform:translateY(-3px);box-shadow:0 20px 48px rgba(255,163,70,.34)}
.uy3d-btn--sub{border-color:rgba(151,210,255,.3);background:rgba(10,18,43,.74);color:#fff!important}
.uy3d-btn--sub:hover{transform:translateY(-3px);border-color:rgba(89,230,255,.7);background:rgba(16,32,69,.92)}
.uy3d .uy3d-copy>p.uy3d-note{margin-top:14px;color:rgba(220,232,255,.62);font-size:.78rem;line-height:1.75}
.uy3d-fig{min-width:0;margin:0}
.uy3d-stage{position:relative;display:block;border:1px solid rgba(151,190,255,.16);border-radius:18px;overflow:hidden;background:#060b1d;transition:transform .3s ease,border-color .3s ease}
.uy3d-stage:hover{transform:translateY(-3px);border-color:rgba(255,211,122,.5)}
.uy3d-stage picture,.uy3d-stage img{display:block;width:100%;height:auto}
.uy3d-stage img{aspect-ratio:560/400}
.uy3d-badge{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;gap:8px;padding:6px 11px 6px 7px;border:1px solid rgba(255,211,122,.38);border-radius:999px;background:rgba(5,9,26,.8);color:#fff;font-size:.72rem;font-weight:900;letter-spacing:.04em;line-height:1.2}
.uy3d-badge i{display:grid;place-items:center;width:21px;height:21px;border-radius:50%;background:linear-gradient(115deg,#ffe29c,#ffd37a 44%,#ff9f5a);color:#261604;font-style:normal;font-size:.6rem}
.uy3d-fig figcaption{margin-top:9px;color:rgba(220,232,255,.6);font-size:.76rem;line-height:1.7}
p.uy3d-line{display:flex;gap:12px;align-items:flex-start;margin:16px 0 6px;padding:13px 15px;border:1px solid rgba(255,211,122,.24);border-radius:14px;background:linear-gradient(100deg,rgba(255,211,122,.07),rgba(167,139,250,.06));color:rgba(231,240,255,.82);font-size:.9rem;line-height:1.8}
.uy3d-line-ic{flex:0 0 auto;display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:rgba(255,211,122,.12);color:#ffd37a}
.uy3d-line-ic svg{display:block;width:20px;height:20px}
.uy3d-line b{color:#fff}
.uy3d-line a{font-weight:900}
.uy3d-line small{display:block;margin-top:4px;color:rgba(220,232,255,.62);font-size:.8rem;line-height:1.7}
p.uy3d-inline{margin-top:-2px}
p.uy3d-inline a{font-weight:900}
@media(max-width:760px){
  .uy3d{grid-template-columns:1fr;margin:36px 0;padding:18px 15px 20px;border-radius:20px}
  .uy3d-fig{order:-1}
  .uy3d-actions{display:grid}
  .uy3d-btn{width:100%}
}
@media(prefers-reduced-motion:reduce){
  .uy3d-btn,.uy3d-stage{transition:none}
  .uy3d-btn:hover,.uy3d-stage:hover{transform:none}
}