:root{color-scheme:light;font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif;background:#ece7dc;color:#24211d;--surface: #f8f5ed;--surface-strong: #fffaf0;--line: #c9bead;--muted: #6f685f;--accent: #2563eb;--accent-soft: #dbeafe;--danger: #b91c1c;--ok: #047857}*{box-sizing:border-box}html,body,#root{margin:0;width:100%;height:100%;min-height:100%;overflow:hidden}body{overscroll-behavior:none}button,input,select,textarea{font:inherit}button,select,input,textarea{border:1px solid var(--line);background:var(--surface-strong);color:inherit;border-radius:6px}button{min-height:38px;padding:8px 11px;cursor:pointer}button:hover{border-color:#2563eb}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:2px}button.active,button[aria-pressed=true]{background:#2563eb;color:#f8fbff;border-color:#1d4ed8}button:disabled{opacity:.45;cursor:not-allowed}button.danger{color:#fff7f7;background:var(--danger);border-color:var(--danger)}.app-shell{height:100vh;height:100dvh;min-height:0;display:grid;grid-template-rows:72px minmax(0,1fr) 34px;overflow:hidden}.topbar{min-height:0;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 18px;background:#f7f1e5;border-bottom:1px solid var(--line)}.topbar h1{margin:2px 0 0;font-size:22px;letter-spacing:0}.eyebrow{margin:0;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:8px}.top-actions select{min-width:240px;min-height:38px;padding:0 10px}.workspace{min-height:0;height:100%;display:grid;grid-template-columns:86px minmax(0,1fr) minmax(300px,336px);gap:10px;padding:10px;overflow:hidden}.workspace.preview-workspace{grid-template-columns:minmax(0,1fr)}.tool-rail{min-height:0;display:flex;flex-direction:column;gap:7px;padding:8px;background:#ded6c8;border:1px solid var(--line);border-radius:8px;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable}.tool-rail button{width:100%;min-height:46px;padding:5px;font-size:13px}.canvas-panel,.inspector,.preview-panel{position:relative;min-width:0;min-height:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden}.canvas-panel{display:grid;grid-template-rows:42px minmax(0,1fr)}.canvas-head{height:42px;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:0 12px;border-bottom:1px solid var(--line);color:var(--muted)}.canvas-head strong{color:#24211d}.canvas-head span{font-size:12px}.canvas-head button{min-height:30px;padding:4px 8px;font-size:12px}.canvas-viewport{position:relative;min-width:0;min-height:0;overflow:hidden}.canvas-viewport canvas{display:block}.edit-confirm-panel,.edit-confirm-card{display:grid;gap:7px;padding:9px;border:1px solid #d97706;border-radius:7px;background:#fff7ed;color:#431407;font-size:12px}.edit-confirm-panel{position:absolute;left:12px;bottom:12px;z-index:5;width:min(320px,calc(100% - 24px));box-shadow:0 10px 24px #43140724}.edit-confirm-panel strong,.edit-confirm-card strong{font-size:13px}.edit-confirm-panel span,.edit-confirm-card span{color:#7c2d12}.edit-confirm-panel div,.edit-confirm-card div{display:flex;gap:7px}.edit-confirm-panel button,.edit-confirm-card button{min-height:30px;padding:4px 8px}.inspector{overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;padding:12px}.inspector section{padding:12px 0;border-bottom:1px solid var(--line)}.inspector section:first-child{padding-top:0}.inspector h2{margin:0 0 10px;font-size:14px}.button-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.form-stack{display:grid;gap:9px}.form-stack label{display:grid;gap:4px;font-size:12px;color:var(--muted)}.form-stack input,.form-stack select,.inspector select,textarea{width:100%;min-height:36px;padding:6px 8px}.metric-row{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.metric-row strong{color:#24211d}.empty,.hint{margin:0;color:var(--muted);font-size:12px;line-height:1.5}.space-list{display:grid;gap:6px;max-height:190px;overflow:auto}.space-list button{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:34px;padding:6px 8px;text-align:left}.space-list small{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}.space-list button.active small{color:#eef6ff}.issues{display:grid;gap:6px}.issues p{margin:0;padding:7px;border-radius:6px;font-size:12px}.issues .error{background:#fee2e2;color:#7f1d1d}.issues .warning{background:#fef3c7;color:#78350f}.ok{color:var(--ok)}.bad{color:var(--danger)}textarea{resize:vertical;font-family:Consolas,monospace;font-size:11px}.cad-import{display:grid;gap:10px}.cad-example-list{display:grid;gap:6px}.cad-example-list button{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3px 8px;align-items:center;min-height:54px;padding:7px 8px;text-align:left}.cad-example-list span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}.cad-example-list small{color:var(--muted);font-size:11px}.cad-example-list em{grid-column:1 / -1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:11px;font-style:normal}.cad-example-list button.active small,.cad-example-list button.active em{color:#eef6ff}.cad-summary,.cad-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 9px;border:1px solid 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span{color:var(--muted);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.form-stack.compact{gap:7px}.segmented{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;margin-top:9px}.segmented button{min-height:30px;padding:3px 4px;font-size:11px}.toggle-row{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:8px}.toggle-row label{display:flex;align-items:center;gap:6px;min-height:30px;padding:5px 7px;border:1px solid #d7cab7;border-radius:6px;background:#fbf6eb;font-size:12px}.light-grid{display:grid;gap:6px;margin-top:8px}.light-grid label{display:grid;gap:3px;font-size:12px;color:var(--muted)}.preview3d-group-tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;margin-bottom:8px}.preview3d-group-tabs button{min-height:30px;padding:3px 2px;font-size:11px}.equipment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.equipment-grid button{display:grid;justify-items:center;gap:3px;min-height:58px;padding:6px 4px}.equipment-grid span{display:grid;place-items:center;width:24px;height:24px;border-radius:6px;background:#ebe4d7;font-weight:700;font-size:12px}.equipment-grid small{width:100%;color:var(--muted);font-size:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.equipment-grid button.active small{color:#eef6ff}.facility-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px;margin-top:8px}.facility-actions button{min-height:32px;padding:4px 6px}.preview3d-search-results{display:grid;gap:5px;max-height:150px;overflow:auto;margin-top:7px}.preview3d-search-results button{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:30px;padding:5px 7px;text-align:left}.preview3d-search-results small{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview3d-search-results button.active small{color:#eef6ff}.preview3d-legend{display:grid;grid-template-columns:1fr 1fr;gap:6px}.preview3d-legend span{display:flex;align-items:center;gap:6px;min-width:0;font-size:12px;color:var(--muted)}.preview3d-legend i{width:14px;height:14px;border-radius:4px;border:1px solid rgba(0,0,0,.12);flex:0 0 auto}.preview3d-label{display:grid;gap:1px;min-width:54px;max-width:150px;padding:4px 8px;border:1px solid rgba(15,23,42,.14);border-radius:14px;color:#1f2937;box-shadow:0 8px 24px #0f172a24;pointer-events:none;white-space:nowrap;text-align:center;font-size:10px}.preview3d-label[data-style=flat],.preview3d-label[data-style=box]{border-radius:5px}.preview3d-label[data-style=dark],.preview3d-label[data-style=pill-dark]{color:#f8fafc}.preview3d-label[data-selected=true]{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb2e,0 12px 28px #0f172a2e}.preview3d-label span{display:block;max-width:132px;overflow:hidden;text-overflow:ellipsis;color:inherit;opacity:.72}.statusbar{min-height:0;display:flex;align-items:center;padding:0 14px;border-top:1px solid var(--line);background:#24211d;color:#f8f5ed;font-size:12px}@media(max-width:980px){.workspace{grid-template-columns:70px minmax(0,1fr);grid-template-rows:minmax(0,1fr) minmax(220px,34vh)}.workspace.preview-workspace{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}.inspector{grid-column:1 / -1;max-height:none}.preview-panel.preview3d-panel{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) minmax(180px,34vh)}.preview3d-stage{min-height:0}.preview3d-controls{border-left:0;border-top:1px solid var(--line);max-height:none}.topbar{align-items:flex-start;flex-direction:column;height:auto}.app-shell{grid-template-rows:auto minmax(0,1fr) 34px}}