:root{color-scheme:light;font-family:Source Han Sans SC,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;background:#f4f6f8}*{box-sizing:border-box}body{margin:0;background:#f4f6f8}.app{min-height:100vh}.app-header{padding:18px 28px;background:linear-gradient(135deg,#0f172a,#1e293b 60%,#0f172a);color:#f8fafc}.app-title{font-size:22px;font-weight:600;letter-spacing:.5px}.app-subtitle{margin-top:4px;color:#cbd5f5;font-size:13px}.layout-grid{padding:18px 18px 28px}.panel{height:100%}.panel-hint{margin-bottom:12px;background:#f8fafc}.app-grid{display:grid;grid-template-columns:320px minmax(480px,1fr) 420px;gap:16px;align-items:start}.panel-right .n-card__content{max-height:calc(100vh - 190px);overflow:auto}.model-list{max-height:calc(100vh - 280px);overflow:auto}.viewer{position:relative;width:100%;height:360px;background:#e9eef3;border-radius:12px;overflow:hidden}.viewer canvas{width:100%;height:100%;display:block}.viewer-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:#475569;font-size:14px;background:#fff9}.model-meta{margin-top:8px;color:#64748b;font-size:12px}.inline-actions{display:flex;gap:8px;flex-wrap:wrap}.chip-list{display:flex;gap:6px;flex-wrap:wrap}.section-title{font-weight:600;color:#0f172a}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.info-list{margin:6px 0 0 18px;padding:0}.info-list li{margin:4px 0}.file-summary,.small-muted{font-size:12px;color:#64748b}.model-item{cursor:pointer;border-radius:8px}.model-item:hover{background:#f1f5f9}.model-item.active{background:#e0e7ff}@media (max-width: 1100px){.viewer{height:280px}}@media (max-width: 1280px){.app-grid{grid-template-columns:1fr 1fr}.panel-right{grid-column:1 / -1}}@media (max-width: 980px){.app-grid{grid-template-columns:1fr}.panel-right{grid-column:auto}}@media (max-width: 960px){.layout-grid{padding:12px}}