:root{--blue:#2465eb;--ink:#182337;--muted:#718095;--line:#e6ebf2;--panel:#fff;--soft:#f4f7fb;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);font-size:14px}*{box-sizing:border-box}body{margin:0;overflow:hidden;background:#fff}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible{outline:3px solid #8db9ff;outline-offset:2px}button{border:0;background:none}input,select,textarea{width:100%;border:1px solid #dce3ed;border-radius:6px;background:#fff;padding:10px 11px;color:var(--ink);outline:none}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 2px #2465eb15}input[type=color]{height:39px;padding:4px}input[type=checkbox]{width:auto;accent-color:var(--blue)}[hidden]{display:none!important}.header{height:66px;display:flex;align-items:center;padding:0 24px;gap:20px;border-bottom:1px solid var(--line);position:relative;z-index:3}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:23px;font-weight:750;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--blue);color:#fff;border-radius:8px;font-size:32px;font-weight:400}.brand-en{font-size:10px;letter-spacing:1.4px;color:#74839a;width:40px;line-height:1.4}.header-divider{height:22px;border-left:1px solid var(--line)}.project-name{font-weight:600;font-size:15px;max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.project-name:after{content:'⌄';color:#8390a3;margin-left:12px}.save-state{font-size:12px;color:#8794a7}.header-actions{display:flex;gap:10px;margin-left:auto}.btn{border:1px solid #dce3ed;border-radius:7px;background:#fff;padding:9px 14px;white-space:nowrap;font-weight:500}.btn:hover{background:#f1f5fb;border-color:#b5c5dc}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:#1755d1}.btn.danger{color:#d64c54;border-color:#f2d8dc;background:#fff}.full{width:100%}.workspace{height:calc(100dvh - 102px);display:grid;grid-template-columns:248px minmax(0,1fr) 266px}.sidebar,.inspector{background:var(--panel);z-index:2;overflow:auto;display:flex;flex-direction:column}.sidebar{border-right:1px solid var(--line)}.inspector{border-left:1px solid var(--line)}.panel-heading{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:0 20px}.panel-heading h1,.panel-heading h2{font-size:15px;font-weight:650;margin:0}.icon-btn{font-size:24px;color:#718199;width:30px;height:30px;border-radius:5px}.icon-btn:hover{background:var(--soft)}.side-tabs{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 20px;height:39px;font-size:13px;color:var(--muted)}.side-tabs .active{color:var(--blue);font-weight:600;border-bottom:2px solid var(--blue);padding-bottom:12px}.layer-list{padding:12px 10px}.layer-row{display:flex;align-items:center;gap:8px;padding:12px 10px;border-radius:6px;border:1px solid transparent;cursor:pointer}.layer-row.active{background:#edf4ff;border-color:#dce8ff}.layer-row .layer-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.layer-row small{color:#8392a5;font-size:12px}.layer-dot{width:10px;height:10px;border-radius:3px;flex-shrink:0}.layer-visibility{width:22px;height:24px;opacity:.65;padding:0}.side-section{padding:18px 16px;border-top:1px solid var(--line);flex:1}.section-title{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:650;margin-bottom:14px}.text-btn{font-size:12px;color:var(--blue);padding:0}.search-input{font-size:13px;background:#f7f9fc;padding:9px 10px}.feature-list{margin-top:12px}.feature-row{display:flex;gap:10px;padding:11px 8px;border-radius:6px;cursor:pointer;align-items:center}.feature-row:hover,.feature-row.active{background:#f1f5fc}.feature-symbol{font-size:20px;width:20px;text-align:center}.feature-row strong{display:block;font-size:13px;font-weight:500}.feature-row small{font-size:12px;color:#8a97a9;display:block;margin-top:4px}.empty-list{color:#8a97a9;font-size:13px;padding:25px 6px;text-align:center;line-height:1.9}.side-bottom{padding:18px 20px;border-top:1px solid var(--line);background:#fbfcfe}.small-label{color:#8b98aa;font-size:12px;margin-bottom:9px}.side-bottom strong{font-size:12px;font-weight:550}.side-bottom p{font-size:12px;color:#94a0b1;margin:8px 0 15px}.map-stage{position:relative;overflow:hidden;background:#e7edf3}#map{width:100%;height:100%;background-color:#e9eef4;background-image:linear-gradient(#cbd4e340 1px,transparent 1px),linear-gradient(90deg,#cbd4e340 1px,transparent 1px);background-size:32px 32px}.map-top{position:absolute;top:20px;left:20px;right:20px;display:flex;gap:10px;align-items:center;justify-content:space-between;pointer-events:none}.map-top>*{pointer-events:auto}.locate{display:flex;align-items:center;gap:10px;width:340px;background:white;padding:5px 12px;box-shadow:0 3px 15px #152b4818;border:1px solid #e8ecf0;border-radius:8px}.locate>span{color:#74839a;font-size:22px}.locate input{padding:8px 0;border:0;font-size:12px;box-shadow:none;min-width:0}.locate button{color:var(--blue);font-size:12px;white-space:nowrap;padding:4px}.map-button{background:#fff;border:1px solid #e2e8f0;border-radius:7px;box-shadow:0 3px 12px #16273912;width:36px;height:36px;font-size:21px}.draw-toolbar{position:absolute;top:82px;left:50%;transform:translateX(-50%);display:flex;align-items:center;background:white;border:1px solid #e2e7ef;border-radius:10px;box-shadow:0 4px 20px #13294820;padding:6px;max-width:calc(100% - 36px)}.tool{height:54px;min-width:48px;border-radius:6px;font-size:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#536278}.tool>span{font-size:25px;line-height:26px;font-weight:400}.tool>.text-icon{font-family:Georgia,serif;font-size:22px}.tool:hover{background:#f3f6fb}.tool.active{color:var(--blue);background:#eaf2ff}.draw-toolbar i{height:27px;border-left:1px solid var(--line);margin:0 5px}.map-side{position:absolute;right:20px;bottom:138px;display:flex;gap:8px;flex-direction:column}.north{font-size:11px;color:#687890;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;height:42px}.north span{font-size:21px;color:#2465eb}.basemap-switch{position:absolute;left:20px;bottom:40px;display:flex;padding:5px;background:#fff;border-radius:8px;box-shadow:0 3px 15px #10274420;border:1px solid #e5eaf1;gap:3px}.basemap-switch button{padding:5px;border:1px solid transparent;border-radius:5px;font-size:11px;color:#77849a;display:flex;flex-direction:column;gap:5px}.basemap-switch button.active{border-color:#2465eb;color:#2465eb;background:#edf4ff}.map-thumb{width:58px;height:30px;border-radius:3px;background:#cad3df}.map-thumb.satellite{background:linear-gradient(135deg,#3d5049,#708373 35%,#455a54 36%,#4f6962 55%,#9caa99 56%,#677a72)}.map-thumb.street{background:repeating-linear-gradient(35deg,#e4eaf0 0,#e4eaf0 10px,#fff 11px,#fff 14px)}.map-thumb.blank{background-color:#f0f3f8;background-image:linear-gradient(#d0dae8 1px,transparent 1px),linear-gradient(90deg,#d0dae8 1px,transparent 1px);background-size:8px 8px}.map-hint{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);font-size:12px;color:#34465c;background:#fffffff0;border:1px solid #e6ebf2;padding:9px 15px;border-radius:6px;box-shadow:0 2px 10px #12274112;white-space:nowrap;pointer-events:none}.map-error{position:absolute;top:160px;left:20px;right:20px;border:1px solid #efd5a3;border-radius:6px;background:#fff8e8;color:#805e20;padding:10px;font-size:12px}.demo-banner{position:absolute;top:160px;left:20px;background:#ffffffed;padding:9px 13px;border-radius:6px;font-size:12px;color:#60718a}.demo-banner button{color:var(--blue);font-size:12px;margin-left:12px}.type-tag{font-size:11px;color:#8996a8;background:#f4f6fa;border-radius:4px;padding:4px 7px}.empty-inspector{text-align:center;padding:32px 22px 30px}.empty-inspector>div{color:#9fb6da;font-size:42px;margin:6px 0 18px}.empty-inspector h3{font-size:14px;font-weight:550}.empty-inspector p{font-size:13px;line-height:1.9;color:#8c99ab;margin:12px 0 24px}.empty-inspector .btn{font-size:12px;color:var(--blue);background:#f6f9ff;border-color:#dce7f8}#properties section{padding:18px 20px;border-top:1px solid var(--line)}label{display:block;font-size:12px;color:#758398;margin-bottom:15px}label input,label select,label textarea{margin-top:8px;font-size:13px;color:#2d3c52}.field-row{display:flex;gap:12px}.field-row label{flex:1;min-width:0}.measurements>div{display:flex;justify-content:space-between;font-size:12px;padding:7px 0;gap:8px;color:#8592a4}.measurements strong{color:#33445f;font-weight:500;text-align:right}.precision-section{padding:20px;border-top:1px solid var(--line)}.precision-section p{font-size:12px;line-height:1.9;color:#8d9bae}.inspector-footer{margin-top:auto;padding:18px 20px;background:#fafbfd;color:#929fb0;font-size:11px;line-height:1.8;border-top:1px solid var(--line)}.statusbar{height:36px;border-top:1px solid var(--line);display:flex;align-items:center;gap:25px;padding:0 18px;font-size:11px;color:#7d8c9e;background:#fff}.statusbar>div{display:flex;gap:14px;margin-right:auto}.status-toggle{font-size:11px;color:#77879d;padding:0}.status-toggle b{font-weight:400;color:#8b98a9;margin-left:5px}.status-toggle.on b{color:var(--blue)}.ol-attribution{font-size:10px;max-width:100%;right:0;bottom:0;background:#ffffffe6}.ol-scale-line{bottom:10px;left:16px;background:#ffffffdc}.ol-scale-line-inner{border-color:#65758b;color:#4c5f76;font-size:10px}.ol-zoom{display:none}dialog{border:1px solid #dee5ef;border-radius:14px;padding:28px;width:460px;max-width:calc(100vw - 28px);box-shadow:0 20px 80px #14274130;color:var(--ink);max-height:90dvh;overflow:auto}dialog::backdrop{background:#12233a55;backdrop-filter:blur(2px)}.dialog-close{position:absolute;right:14px;top:12px;font-size:24px;color:#8190a5}dialog h2{font-size:19px;margin:0 0 10px}dialog p{font-size:13px;color:#7b899d;line-height:1.8}dialog label{font-size:13px}dialog .actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.help-list{font-size:14px;color:#586b85;line-height:2}.toast{position:fixed;bottom:56px;left:50%;transform:translateX(-50%) translateY(15px);background:#1c2f49;color:white;border-radius:8px;padding:12px 20px;font-size:13px;z-index:20;opacity:0;pointer-events:none;transition:.2s;max-width:90vw;box-shadow:0 5px 20px #13264230}.toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.mobile-only{display:none}@media(min-width:1550px){.workspace{grid-template-columns:270px minmax(0,1fr) 290px}.tool{min-width:55px}}@media(max-width:1150px){.workspace{grid-template-columns:210px minmax(0,1fr) 232px}.header{gap:12px;padding:0 16px}.save-state,.brand-en{display:none}.tool{min-width:38px}.draw-toolbar{padding:4px}.map-top{left:12px;right:12px}.locate{width:285px}.basemap-switch{left:12px}.map-hint{bottom:128px;max-width:90%;white-space:normal;text-align:center}.panel-heading{padding:0 16px}}@media(max-width:900px){.workspace{grid-template-columns:220px minmax(0,1fr)}.inspector{display:none;position:absolute;right:0;top:66px;bottom:36px;width:270px;box-shadow:-5px 0 25px #1232}.inspector.open{display:flex}.mobile-only{display:block}.tool{min-width:43px}.map-top .locate{width:calc(100% - 50px)}.statusbar{gap:12px}.statusbar #coordinates{font-size:10px}.header-actions{gap:6px}.header-actions .btn{padding:8px 10px;font-size:12px}}@media(max-width:650px){.workspace{display:block}.map-stage{height:100%}.sidebar{display:none;position:absolute;left:0;top:60px;bottom:36px;width:240px;box-shadow:5px 0 25px #1232}.sidebar.open{display:flex}.header{height:60px;padding:0 12px;gap:8px}.brand{font-size:19px;gap:7px}.brand-mark{width:28px;height:28px}.header-divider,.project-name,.save-state{display:none}.header-actions{gap:5px}.header-actions .btn{padding:8px;font-size:11px}.workspace{height:calc(100dvh - 96px)}.inspector{top:60px}.draw-toolbar{top:76px;max-width:calc(100% - 16px);padding:3px}.tool{min-width:34px;height:49px;font-size:10px}.tool>span{font-size:22px}.draw-toolbar i{margin:0 2px}.map-top{top:14px}.map-hint{bottom:133px;font-size:11px}.map-side{right:12px}.statusbar{padding:0 10px;font-size:10px}.statusbar>div{gap:10px}.statusbar #coordinates{display:none}.basemap-switch{bottom:38px}.demo-banner{top:140px;font-size:11px}.map-error{top:185px}.status-toggle{font-size:10px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.source-control{position:absolute;left:20px;bottom:132px;display:flex;background:white;border:1px solid #dfe6ef;border-radius:7px;box-shadow:0 3px 15px #142b4820;max-width:calc(100% - 80px)}.source-control button{padding:10px 12px;font-size:12px}.source-control #sourcePicker{display:flex;align-items:center;gap:9px;min-width:0}.source-control b{font-weight:500;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.source-control #importBasemap{border-left:1px solid #e6ebf2;color:#2465eb;white-space:nowrap}.source-list{max-height:45dvh;overflow:auto;margin:18px 0}.source-option{width:100%;text-align:left;border:1px solid #e4eaf2;border-radius:7px;padding:12px;margin-bottom:8px}.source-option strong{font-size:13px;display:block;font-weight:500}.source-option small{font-size:11px;display:block;margin-top:6px;color:#8090a5}.source-option.active{border-color:#2465eb;background:#edf4ff}.source-option:hover{background:#f2f6fb}@media(max-width:1150px){.source-control{left:12px;bottom:135px}.map-hint{bottom:185px}}@media(max-width:650px){.source-control{bottom:134px;max-width:calc(100% - 66px)}.source-control button{font-size:10px;padding:9px 8px}.source-control b{max-width:145px}.map-hint{bottom:183px}}