.its-app{max-width:760px;margin:30px auto;padding:28px;border:1px solid #ddd;border-radius:18px;background:#fff;box-shadow:0 12px 40px rgba(0,0,0,.07);font-family:system-ui,sans-serif}.its-app h2{margin:0 0 8px;font-size:30px}.its-sub{color:#5b6470}.its-drop{display:flex;min-height:190px;border:2px dashed #9aa4b2;border-radius:14px;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:20px;cursor:pointer;background:#fafbfc}.its-drop input{display:none}.its-drop span{font-weight:700;font-size:18px}.its-drop small{margin-top:8px;color:#697386}.its-app button,.its-button{display:inline-block;margin-top:18px;padding:12px 18px;border:0;border-radius:10px;background:#111827;color:#fff;text-decoration:none;font-weight:700;cursor:pointer}.its-app button:disabled{opacity:.45;cursor:not-allowed}#its-image-preview{max-width:220px;max-height:220px;margin:18px auto 0;border-radius:12px;display:block}.its-status{margin-top:20px}.its-bar{height:9px;background:#e5e7eb;border-radius:20px;overflow:hidden}.its-bar i{display:block;height:100%;width:3%;background:#111827;transition:width .35s}.its-status p{margin:8px 0;color:#4b5563}#its-result{margin-top:25px}model-viewer{width:100%;height:430px;background:#f3f4f6;border-radius:14px}@media(max-width:600px){.its-app{padding:18px;margin:15px}.its-app h2{font-size:24px}model-viewer{height:340px}}

.its-compare{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.its-compare>div{border:1px solid #e5e7eb;border-radius:14px;padding:10px;background:#f8fafc}
.its-compare strong{display:block;margin:0 0 8px;font-size:13px;color:#475569}
#its-source-compare{width:100%;height:430px;object-fit:contain;background:#f3f4f6;border-radius:10px}
.its-note{padding:10px 12px;border-radius:10px;background:#eff6ff;color:#334155;font-size:13px}
@media(max-width:700px){.its-compare{grid-template-columns:1fr}#its-source-compare{height:320px}}

.its-viewer-state{margin-top:8px;padding:8px 10px;border-radius:8px;background:#eef2f7;color:#475569;font-size:12px}
.its-viewer-state.ok{background:#ecfdf5;color:#166534}
.its-viewer-state.warn{background:#fff7ed;color:#9a3412}
.its-glb-link{display:inline-block;margin-top:8px;font-size:12px;font-weight:700}