body{
margin:0;
background:#090d18;
color:white;
font-family:Arial,"Microsoft YaHei";
}
.top{padding:20px;border-bottom:1px solid #263040}
.layout{display:grid;grid-template-columns:280px 1fr 300px;gap:15px;padding:15px}
.panel,.result,.render{
background:#111827;
border:1px solid #273449;
border-radius:12px;
padding:20px;
}
button{
background:#2563eb;
color:white;
border:0;
padding:12px 25px;
border-radius:8px;
}
.viewer{
height:500px;
display:grid;
grid-template-columns:1fr 1fr;
gap:15px;
}
.viewer div,.cards div,.render-item{
background:#020617;
border:1px solid #334155;
display:flex;
align-items:center;
justify-content:center;
min-height:120px;
}
.cards,#renderViews{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:15px;
}