:root{--bg: #f1f3f7;--panel: #ffffff;--line: #e2e6ee;--line2: #d4dae6;--ink: #1f2733;--muted: #788196;--accent: #3b6fd4;--accent-weak: #e8f0fe;--danger: #d6453d;--radius: 8px;--shadow: 0 1px 3px rgba(20,30,60,.08), 0 1px 2px rgba(20,30,60,.06);font-family:system-ui,-apple-system,Segoe UI,Roboto,Hiragino Sans,Noto Sans JP,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font-size:13px}button{font:inherit;font-size:12px;color:var(--ink);background:#fff;border:1px solid var(--line2);border-radius:6px;padding:5px 10px;cursor:pointer;line-height:1.1;white-space:nowrap}button:hover:not(:disabled){background:#f6f8fc;border-color:#c2cbdc}button:active:not(:disabled){background:#eef2fa}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){background:#335fbb}button.danger{border-color:#e7b4b1;color:var(--danger)}button.icon{font-size:15px;padding:4px 9px}input,select{font:inherit;font-size:12px}input[type=number],input[type=text]{border:1px solid var(--line2);border-radius:5px;padding:4px 6px;background:#fff;color:var(--ink);width:100%}input[type=color]{width:30px;height:26px;padding:0;border:1px solid var(--line2);border-radius:5px;background:#fff;cursor:pointer}select{border:1px solid var(--line2);border-radius:5px;padding:4px 6px;background:#fff}.app{display:flex;flex-direction:column;height:100vh}.empty{flex:1;display:grid;place-items:center;padding:40px}.topbar{display:flex;align-items:center;gap:14px;padding:8px 14px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-weight:700;font-size:15px;letter-spacing:-.2px}.brand span{color:var(--accent)}.tb-group{display:flex;align-items:center;gap:6px}.tb-group.right{margin-left:auto}.status{color:var(--muted);font-size:12px;max-width:40vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.insertbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:7px 14px;background:var(--panel);border-bottom:1px solid var(--line)}.insertbar .sep{width:1px;height:22px;background:var(--line);margin:0 4px}.insertbar .grp{display:flex;align-items:center;gap:3px}.insertbar .grp.disabled{opacity:.4;pointer-events:none}.insertbar .lbl{color:var(--muted);font-size:11px;margin-right:3px}.menu-wrap{position:relative}.menu{position:absolute;top:calc(100% + 4px);left:0;z-index:50;background:#fff;border:1px solid var(--line2);border-radius:8px;box-shadow:var(--shadow);display:flex;flex-direction:column;padding:4px;min-width:120px}.menu button{border:none;text-align:left;background:none;padding:6px 10px;border-radius:5px}.menu button:hover{background:var(--accent-weak)}.body{flex:1;display:flex;min-height:0}.rail{width:168px;flex:0 0 168px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}.rail-actions{display:flex;gap:4px;padding:8px;border-bottom:1px solid var(--line)}.rail-actions button{flex:1}.rail-list{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:8px}.rail-item{flex:0 0 auto;position:relative;border:2px solid var(--line2);border-radius:7px;overflow:hidden;cursor:pointer;background:#fff}.rail-item:hover{border-color:#b7c2da}.rail-item.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-weak)}.rail-item.drop{border-color:var(--accent);border-style:dashed}.rail-num{position:absolute;left:4px;top:3px;z-index:2;font-size:10px;color:var(--muted);background:#ffffffd9;border-radius:4px;padding:0 4px;pointer-events:none}.rail-svg{display:block;pointer-events:none}.rail-svg svg{display:block;width:100%;height:auto}.stage{flex:1;min-width:0;overflow:hidden;padding:24px;display:flex;justify-content:center;align-items:center;background:var(--bg);position:relative}.canvas{position:relative;background:#fff;box-shadow:var(--shadow);border-radius:4px}.canvas svg{display:block;width:100%;height:100%;border-radius:4px}.inline-hint{position:absolute;left:50%;bottom:14px;transform:translate(-50%);background:#1f2733e6;color:#fff;font-size:11px;padding:5px 12px;border-radius:20px;z-index:200;pointer-events:none}.panel{width:280px;flex:0 0 280px;background:var(--panel);border-left:1px solid var(--line);overflow-y:auto}.panel-empty{padding:24px 18px;color:var(--muted);font-size:12px;line-height:1.7;text-align:center}.props{padding:0 0 24px}.props-title{padding:12px 14px;font-weight:600;font-size:12px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel);z-index:1}.hint{padding:12px 14px;color:var(--muted);font-size:12px;line-height:1.6}.prop-section{border-bottom:1px solid var(--line)}.prop-head{width:100%;display:flex;justify-content:space-between;align-items:center;border:none;background:none;padding:10px 14px;font-weight:600;font-size:12px}.prop-head:hover{background:#f7f9fc}.prop-head .chev{color:var(--muted)}.prop-body{padding:4px 14px 14px;display:flex;flex-direction:column;gap:8px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:6px}.grid2 label{display:flex;flex-direction:column;gap:3px;font-size:11px;color:var(--muted)}.grid2 label:nth-child(5){grid-column:span 2}.row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.row button{flex:0 0 auto}.row .angle{width:56px;flex:0 0 auto}.row label{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--muted)}.gradient input[type=number]{width:52px}.filebtn{border:1px solid var(--line2);border-radius:6px;padding:5px 10px;cursor:pointer;background:#fff;font-size:12px}.filebtn:hover{background:#f6f8fc}.selection-overlay{position:absolute;pointer-events:none;border:1.5px solid var(--accent);z-index:100}.resize-handle{position:absolute;width:10px;height:10px;background:#fff;border:1.5px solid var(--accent);border-radius:2px;pointer-events:all;z-index:101}.resize-handle.nw{top:-5px;left:-5px;cursor:nwse-resize}.resize-handle.ne{top:-5px;right:-5px;cursor:nesw-resize}.resize-handle.sw{bottom:-5px;left:-5px;cursor:nesw-resize}.resize-handle.se{bottom:-5px;right:-5px;cursor:nwse-resize}.resize-handle.n{top:-5px;left:calc(50% - 5px);cursor:ns-resize}.resize-handle.s{bottom:-5px;left:calc(50% - 5px);cursor:ns-resize}.resize-handle.w{top:calc(50% - 5px);left:-5px;cursor:ew-resize}.resize-handle.e{top:calc(50% - 5px);right:-5px;cursor:ew-resize}.rotate-handle{position:absolute;top:-26px;left:calc(50% - 7px);width:14px;height:14px;background:#fff;border:1.5px solid var(--accent);border-radius:50%;pointer-events:all;cursor:grab;z-index:101}.rotate-handle:after{content:"";position:absolute;left:50%;top:14px;width:1.5px;height:12px;background:var(--accent);transform:translate(-50%)}.multi-overlay{position:absolute;pointer-events:none;border:1.5px dashed var(--accent);background:#3b6fd40f;z-index:99}.edit-overlay{position:absolute;pointer-events:none;border:1.5px dashed var(--accent);border-radius:2px;z-index:100}.text-caret{position:absolute;width:2px;background:var(--accent);pointer-events:none;z-index:103;animation:caret 1s step-end infinite}@keyframes caret{50%{opacity:0}}