*{box-sizing:border-box}body{margin:0;color:#294036;font:13px "Segoe UI","Microsoft YaHei",sans-serif;background:#eef2ed}button,select,input{font:inherit}button,.filebutton{border:1px solid #dce4dc;background:#fff;border-radius:6px;padding:8px 11px;color:#385345;cursor:pointer}button:hover,.filebutton:hover{background:#edf5ee}button.active,button.primary{background:#285a43;color:#fff;border-color:#285a43}button:disabled{opacity:.5;cursor:wait}input,select{border:1px solid #dce4dc;border-radius:5px;padding:7px;background:white;max-width:100%;color:#35483c}input[type=color]{height:31px;padding:2px;width:65px}input[type=range]{padding:0}input[type=checkbox]{accent-color:#285a43}header{height:64px;background:#fff;border-bottom:1px solid #dce4dc;display:flex;align-items:center;gap:12px;padding:0 22px}header strong{font-size:22px;margin-right:auto}header strong span{font-size:12px;font-weight:400;color:#829286;margin-left:18px}.exports{display:flex;align-items:center;gap:7px}.exports>span{font-size:11px;color:#8a978d;margin-right:5px}.workspace{display:flex;height:calc(100dvh - 64px)}aside{width:304px;flex-shrink:0;background:#fff;display:flex;flex-direction:column;border-right:1px solid #dae3db}.sidehead{display:flex;justify-content:space-between;align-items:center;padding:14px 18px}.sidehead button{padding:2px 10px;font-size:20px}nav{display:flex;padding:0 10px 12px;gap:5px;border-bottom:1px solid #edf0eb}nav button{padding:8px;flex:1;font-size:12px}.panel{padding:0 18px 18px;overflow:auto;flex:1}.panel h3{font-size:15px;margin:19px 0 14px}.panel>select,.panel>button,.panel>.filebutton{display:block;width:100%;margin:9px 0}.panel label{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:12px 0;font-size:12px}.panel label input:not([type=checkbox]):not([type=color]):not([type=range]),.panel label select{width:155px}.hint{font-size:11px;color:#8a968c;line-height:1.8}.row,.tools{display:flex;gap:7px}.row input{min-width:0;width:190px}.tools{flex-wrap:wrap}.tools button{flex:1;min-width:100px}.year{display:flex;align-items:center;gap:7px;padding:5px 0;font-size:12px}.year small{color:#8d988f}.yeargroup{font-weight:600;margin-top:14px;color:#506d58}#years{max-height:34vh;overflow:auto;border-bottom:1px solid #edf0eb;margin-bottom:12px}.imageitem,.featureitem{border:1px solid #e3e8e1;border-radius:6px;margin:8px 0;padding:9px;font-size:11px}.featureitem.selected{border-color:#387952;background:#eff7ef}.featureitem{display:flex;align-items:center;gap:6px;cursor:pointer}.imageitem input[type=range]{width:100%}.imageitem button{padding:3px 6px;font-size:10px;margin:5px 2px}.danger{color:#b34646}footer{padding:13px 18px;border-top:1px solid #edf0eb;color:#99a69b;font-size:10px}main{flex:1;min-width:0;position:relative}#map{width:100%;height:100%;background:#bdc8b5}.leaflet-container{font:inherit}#notice{position:absolute;top:17px;left:50px;right:65px;z-index:900;background:#fffffff2;border-radius:7px;padding:10px 14px;box-shadow:0 3px 14px #0001;font-size:12px;pointer-events:none;max-width:650px}.maphelp{position:absolute;bottom:24px;left:14px;background:#fffef1e8;padding:8px 12px;border-radius:6px;z-index:900;font-size:11px;color:#647c65}#busy{position:absolute;inset:0;background:#edf3e5aa;z-index:1100;place-items:center;font-size:16px;color:#28452f}#busy:not([hidden]){display:grid}.filebutton input{display:none}.map-label{white-space:nowrap;font-weight:600;text-shadow:0 1px 2px white;pointer-events:none}.vertex-label{color:#111;font:12px Georgia;background:#ffffffa8;white-space:nowrap}.vertex-handle{background:white;border:2px solid #e62a2a;border-radius:50%}aside.collapsed{width:65px}.collapsed .panel,.collapsed nav,.collapsed footer,.collapsed .sidehead b{display:none}.collapsed .sidehead{padding:14px}.leaflet-control-attribution{font-size:9px!important}button:focus-visible{outline:2px solid #53a174;outline-offset:2px}@media(max-width:800px){aside{width:250px}header{padding:0 10px;gap:5px}header strong span,.exports>span{display:none}.exports button{padding:7px;font-size:11px}header>.filebutton,header>#save{font-size:10px;padding:6px}header strong{font-size:17px}.panel{padding:0 10px 12px}}

.editable-label{width:max-content!important;height:auto!important;transform:translate(-50%,-50%)}.editable-label button{border:0;background:transparent;padding:3px;white-space:nowrap;font-weight:600;text-shadow:0 1px 2px white;cursor:text}.editable-label button:hover{background:#ffffffb0}.label-editor input{display:block;width:210px;margin:8px 0}.label-editor button{margin-right:6px}

.is-drawing .editable-label,.is-drawing .editable-label button{pointer-events:none!important}

#measurementPanel{flex:0 0 auto;max-height:32vh;overflow:auto;padding:10px 18px;background:#f0f7f2;border-bottom:1px solid #dce4dc}#measurementPanel h3{font-size:14px;margin:0 0 8px}#measurements p{margin:8px 0;line-height:1.7}aside.collapsed #measurementPanel{display:none}.panel{min-height:0}

#createProject[hidden]{display:none}

.no-project>header,.no-project>.workspace{display:none}#projectStart{max-width:520px;margin:18vh auto;padding:32px;background:white;border-radius:12px;text-align:center}body:not(.no-project)>#projectStart{display:none}#startStatus{color:#a34335}

#exportControls{position:fixed;right:20px;bottom:20px;z-index:1100;background:white;padding:14px;border:1px solid #ccd8d0;border-radius:10px;box-shadow:0 3px 16px #0002;display:flex;align-items:center;gap:14px;flex-wrap:wrap;max-width:calc(100vw - 40px)}#exportControls[hidden]{display:none}#exportControls label{margin:0}#exportControls label[hidden]{display:none}#exportControls select{width:auto}#exportControls button{margin-left:8px}[data-export].active{background:#285b48;color:white}

#textSettings{padding:10px 18px;border-bottom:1px solid #dce4dc;flex-shrink:0}#textSettings summary{cursor:pointer;font-weight:600}#textSettings label{display:flex;align-items:center;justify-content:space-between;margin:10px 0;gap:8px}#textSettings select{width:190px}#textSettings input{width:90px}aside.collapsed #textSettings{display:none}

#historyDescription{width:100%;resize:vertical;font:inherit;line-height:1.7;padding:8px;border:1px solid #dce4dc;border-radius:5px}.history-mode #imageLayers input,.history-mode #imageLayers button{display:none}

#historyEditor{display:none}.history-mode #historyEditor{display:block}

#compassControl{position:absolute;right:15px;top:15px;z-index:1000}#compassControl[hidden],#compassMenu[hidden]{display:none}#compassToggle{display:block;padding:0;border:0;background:transparent;cursor:pointer}#compassPreview{display:block;width:120px;height:140px}#compassMenu{position:absolute;right:0;top:146px;display:flex;gap:8px;padding:10px;background:white;border:1px solid #ccd8d0;border-radius:8px;box-shadow:0 3px 16px #0003}#compassMenu button{padding:5px;background:white;white-space:nowrap}#compassMenu button[aria-pressed=true]{outline:2px solid #285b48}#compassMenu canvas{display:block;width:72px;height:84px;margin:auto}

#map.is-drawing,#map.is-drawing .leaflet-interactive{cursor:crosshair}#map.is-panning,#map.is-panning .leaflet-interactive{cursor:grab}
#drawCursor{position:absolute;z-index:800;pointer-events:none;width:14px;height:14px;border:1px solid white;border-radius:50%;box-shadow:0 0 0 1px #254b60;transform:translate(-50%,-50%)}#drawCursor span{position:absolute;left:12px;top:-22px;font-size:24px;color:#173e52;text-shadow:0 0 2px white,1px 1px white}
#drawControls{position:absolute;top:68px;left:50px;z-index:900;display:flex;align-items:center;gap:8px;padding:8px;background:#fffffff2;border:1px solid #dce4dc;border-radius:8px;box-shadow:0 3px 14px #0002}#drawControls[hidden],#drawCursor[hidden]{display:none}#drawControls label{display:flex;align-items:center;gap:4px;font-size:12px}#drawControls button:disabled{cursor:default}.maphelp{max-width:calc(100% - 28px);pointer-events:none}
.edit-handle{display:grid;place-items:center;background:transparent;border:0}.edit-handle span{display:grid;place-items:center;width:12px;height:12px;border:2px solid white;background:#176a92;border-radius:50%;box-shadow:0 0 0 1px #174b68;color:white;font:12px sans-serif}.edit-handle.midpoint span{background:#fff9;color:#174b68;width:13px;height:13px}.edit-handle:hover span,.edit-handle.chosen span{background:#f2ad24;transform:scale(1.3)}

header strong{margin-right:0;white-space:nowrap}#fileMenu{position:relative;margin-right:auto;flex-shrink:0;z-index:1200}#fileMenu summary{list-style:none;padding:9px 12px;border-radius:6px;cursor:pointer;white-space:nowrap}#fileMenu summary::-webkit-details-marker{display:none}#fileMenu summary:hover,#fileMenu[open] summary{background:#edf5ee}#fileMenu summary:focus-visible{outline:2px solid #53a174;outline-offset:2px}.file-actions{position:absolute;top:calc(100% + 8px);left:0;width:220px;padding:10px;background:#fff;border:1px solid #dce4dc;border-radius:10px;box-shadow:0 8px 28px #0002}.file-actions button{display:flex;align-items:center;gap:14px;width:100%;border:0;text-align:left;padding:14px;font-size:15px}.file-actions svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

#historyNotes{display:none;position:absolute;right:15px;bottom:95px;z-index:1000;width:280px;max-width:calc(100% - 70px);max-height:calc(100% - 160px);overflow:auto;padding:16px;background:#fffffff5;border:1px solid #dce4dc;border-radius:10px;box-shadow:0 4px 18px #0002}.history-mode #historyNotes{display:block}#historyNotes h3{font-size:15px;margin:0 0 12px}#historyNotes label{display:block;margin:9px 0 6px}#historyNotes select{display:block;width:100%;margin-top:6px}#historyNotes .hint{margin-bottom:0}#historyNotes textarea{display:block;min-height:100px;max-height:240px}

.vertex-preview{background:none;border:0;white-space:nowrap;pointer-events:none}.vertex-preview span{color:#111;text-shadow:-1px -1px 0 white,1px -1px 0 white,-1px 1px 0 white,1px 1px 0 white}

#projectName{height:36px;padding:8px 22px;background:#eef5ef;border-bottom:1px solid #dce4dc;color:#285a43;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.workspace{height:calc(100dvh - 100px)}

/* Layer list and map-side tool settings */
#sidebar{width:240px}#sidebar .sidehead{border-bottom:1px solid #edf0eb}#features{flex:1;min-height:0;overflow:auto;padding:8px 12px}#features:empty::after{content:"暂无图层，请导入红线或绘制要素";display:block;padding:16px 4px;color:#8a968c;line-height:1.8}.featureitem span{overflow-wrap:anywhere}#sidebar.collapsed{width:55px}#sidebar.collapsed #features{display:none}
#mapTools{width:64px;flex-shrink:0;display:flex;flex-direction:column;gap:5px;padding:8px;background:#f7faf7;border-right:1px solid #dce4dc;overflow-y:auto}#mapTools button{flex:none;min-height:48px;padding:5px 2px;border-color:transparent;background:transparent}#mapTools button:hover{background:#e4eee6}#mapTools button.active{background:#285a43;color:white}#mapTools button span{display:block;font-size:20px;line-height:23px}#mapTools small{display:block;font-size:11px}
#toolPanels{position:relative;width:272px;flex-shrink:0;background:white;border-right:1px solid #dce4dc;overflow:auto}#toolPanels[hidden]{display:none}#toolPanels .panel{padding:0 16px 18px;overflow:visible}#toolPanels .panel[hidden]{display:none}#toolPanels h3{padding-right:25px}#closeToolPanel{position:absolute;right:8px;top:8px;padding:2px 8px;border:0;font-size:20px}#toolPanels #textSettings{padding:0;border:0}#toolPanels #measurementPanel{padding:0;background:none;border:0;max-height:none}#toolPanels label input:not([type=checkbox]):not([type=color]):not([type=range]),#toolPanels label select{max-width:145px}#toolPanels input[type=range]{width:120px}#toolPanels .tools{gap:6px}.workspace>main{min-width:0}
/* Sketch layout: one sidebar, object styles in a context menu. */
#sidebar{width:280px;overflow:auto;display:block}#sidebar .sidehead{padding:14px 16px}#sidebar #features{max-height:30vh;min-height:80px;padding:8px 12px}#sidebar>details{border-top:1px solid #dce4dc;padding:12px 16px}#sidebar>details>summary{font-size:15px;font-weight:600;cursor:pointer}#sidebar>details>div{padding-top:12px}#sidebar .tools{display:grid;grid-template-columns:1fr 1fr}#sidebar .tools button{min-width:0}#sidebar label{display:flex;align-items:center;gap:8px;margin:10px 0}#sidebar .year{margin:0;padding:6px 0}#sidebar #sources>select,#sidebar #query{width:100%;margin:8px 0}#sidebar #measurementPanel{padding:0;border:0;background:none;max-height:none}#sidebar #measurementPanel .hint{display:none}#sidebar #historyNotes{position:static;width:auto;max-width:none;max-height:none;padding:0;box-shadow:none;border:0;background:none}#historyGroup[open] #historyNotes{display:block}#sidebar.collapsed{width:55px}#sidebar.collapsed>details{display:none}
#toolPanels,#drawControls,#compassControl,#modeHint{display:none!important}#featureMenu{position:fixed;z-index:1400;width:300px;max-height:calc(100vh - 24px);overflow:auto;background:white;padding:10px;border:1px solid #cbd8ce;border-radius:6px;box-shadow:0 6px 24px #0002}#featureMenu[hidden],#featureMenu [hidden]{display:none}#featureMenu>button{display:block;width:100%;text-align:left;margin:3px 0}#featureMenu h3{font-size:14px}#featureMenu label{display:flex;align-items:center;justify-content:space-between;margin:10px 0;gap:8px}#featureMenu input:not([type=color]):not([type=range]){width:150px}#featureMenu #textSettings{padding:0}#featureMenu input[type=range]{width:140px}.file-actions .filebutton{display:block;margin:5px 0}.file-actions{width:260px}#sources [hidden]{display:none!important}#sidebar #outputSettings .hint{display:none}#sidebar #years{max-height:28vh}

#exportFrameOverlay{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:700}#exportFrameOverlay[hidden]{display:none}#exportFrame{position:absolute;outline:2px solid #fff;box-shadow:0 0 0 9999px #0004;pointer-events:none}
#map.file-drop{outline:3px dashed #285a43;outline-offset:-6px}#map.file-drop::after{content:"松开以添加图层";position:absolute;inset:12px;z-index:1200;display:grid;place-items:center;background:#eef5efcc;color:#285a43;font-size:20px;pointer-events:none}

.vertex-preview{pointer-events:auto;cursor:pointer}

header .app-brand{display:flex;align-items:center;gap:8px;white-space:nowrap}header .app-brand img{width:32px;height:32px;object-fit:contain}.start-logo{display:block;width:72px;height:72px;object-fit:contain;margin:0 auto 12px}
.layer-group{margin:8px 0;border:1px solid #dce4dc;border-radius:6px;padding:8px}.layer-group summary{cursor:pointer;font-weight:600;overflow-wrap:anywhere}.layer-group .featureitem{margin-left:8px}#layerGroupMenu{position:fixed;z-index:1450;width:230px;padding:8px;background:white;border:1px solid #dce4dc;border-radius:6px;box-shadow:0 4px 18px #0002}#layerGroupMenu button{display:block;width:100%;text-align:left;margin:4px 0}#layerGroupMenu[hidden],#layerGroupMenu button[hidden],#groupEditing[hidden]{display:none}#groupEditing{position:fixed;right:20px;bottom:20px;z-index:1100;display:flex;align-items:center;gap:12px;background:white;border:1px solid #dce4dc;border-radius:8px;padding:12px;box-shadow:0 4px 18px #0002}body:has(#groupEditing:not([hidden])) #exportControls{bottom:90px}
#groupCreateDialog,#groupPropertiesDialog{border:1px solid #ccd8d0;border-radius:10px;padding:20px;color:#28452f}dialog::backdrop{background:#0005}#groupCreateDialog{width:360px}#groupCreateForm label{display:flex;justify-content:space-between;gap:16px;margin:16px 0}#groupPropertiesDialog{width:min(1000px,90vw);max-height:85vh}.attribute-heading{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dce4dc;padding-bottom:12px}.attribute-heading strong{font-size:20px}#groupPropertiesDialog p{font-size:12px}#addGroupField{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.attribute-scroll{overflow:auto;max-height:55vh}#groupAttributeTable{border-collapse:collapse;min-width:100%;font-size:13px}#groupAttributeTable th,#groupAttributeTable td{border:1px solid #dce4dc;padding:8px;text-align:left;white-space:nowrap}#groupAttributeTable th{background:#eff7ef;position:sticky;top:0}#groupAttributeTable input{width:150px}#groupAttributeTable th button{font-size:11px;margin-left:10px;padding:3px;color:#a43e3e}#groupCreateError{color:#a43e3e}