:root{--b:#111;--g:#666;--bd:#ddd;--bg:#fff}
*{box-sizing:border-box}
body{font-family:system-ui;margin:0;background:var(--bg);color:#111}
.top{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--bd);gap:16px;flex-wrap:wrap}
.title{font-size:22px;font-weight:700}
.subtitle{color:var(--g);font-size:14px}
.tabs{display:flex;gap:10px}
.tab{border:1px solid var(--bd);background:#fff;border-radius:12px;padding:8px 12px;cursor:pointer}
.tab.active{border-color:#111}
.grid{max-width:1100px;margin:0 auto;padding:24px;display:grid;grid-template-columns:1fr 340px;gap:18px}
@media (max-width:950px){.grid{grid-template-columns:1fr}}
.card{border:1px solid var(--bd);border-radius:18px;padding:16px}
.drop{border:2px dashed #aaa;border-radius:16px;padding:18px;text-align:center;cursor:pointer;user-select:none}
.hint{color:var(--g);font-size:13px;margin-top:6px;line-height:1.35}
.editor{margin-top:14px}
.hidden{display:none}
.stageWrap{position:relative;width:min(800px,100%);margin:0 auto}
.stageWrap canvas{width:100%;height:auto;display:block;border-radius:16px;background:#000;touch-action:none}
.frame{pointer-events:none;position:absolute;inset:0;border-radius:16px;box-shadow:0 0 0 9999px rgba(0,0,0,.22) inset;outline:2px solid rgba(255,255,255,.35);outline-offset:-2px}
.panel{margin-top:12px;border:1px solid var(--bd);border-radius:16px;padding:12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row label{min-width:74px;font-size:13px;color:#222}
.row input[type="range"]{flex:1;min-width:180px}
.btn{border:1px solid #111;background:#fff;border-radius:12px;padding:9px 12px;cursor:pointer;text-decoration:none;display:inline-block}
.btn.primary{background:#111;color:#fff}
.actions{margin-top:12px}
.status{min-height:22px;margin-top:10px;color:var(--g);font-size:13px}
.mono{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;font-size:12px}
.asideTitle{font-weight:700;margin-bottom:6px}