:root{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:#283e35;background:#f3f5f2;font-synthesis:none;--green:#30624c;--border:#dce3dc;--muted:#7a877e}*{box-sizing:border-box;letter-spacing:0}body{margin:0}button,input,select{font:inherit}button{cursor:pointer;color:inherit;background:none;border:0}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #56876b;outline-offset:2px}button:hover{color:var(--green)}button:disabled{opacity:.36;cursor:default}svg{width:18px;height:18px;stroke-width:1.65;flex-shrink:0}[hidden]{display:none!important}.header{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 26px;background:#fff;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:12px}.brand-icon{display:grid;place-items:center;width:39px;height:39px;background:#eaf1e9;border-radius:7px;color:var(--green)}.brand-icon svg{width:23px;height:23px}.brand h1{font-size:18px;margin:0 0 4px;font-weight:600}.brand div>span{font-size:10px;color:var(--muted)}.header-meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px}.status-dot,.small-dot{width:6px;height:6px;background:#64866b;border-radius:50%;display:inline-block}.divider{height:14px;width:1px;background:var(--border);margin:0 10px}.header-actions{display:flex;gap:8px;align-items:center}.icon-button{display:grid;place-items:center;flex-shrink:0;width:37px;height:37px;border:1px solid var(--border);border-radius:5px;background:#fff}.icon-button:hover,.icon-button[aria-pressed=true]{background:#eaf1e9;color:var(--green);border-color:#a7b9a8}.text-button,.primary-button{display:flex;align-items:center;justify-content:center;gap:8px;padding:9px 13px;font-size:12px}.primary-button{background:#30624c;color:#fff;border-radius:5px}.workspace{height:calc(100dvh - 134px);min-height:490px;display:grid;grid-template-columns:252px minmax(0,1fr)}.sidebar{background:#fff;border-right:1px solid var(--border);padding:24px 16px 16px;display:flex;flex-direction:column;overflow-y:auto;gap:18px}.sidebar-title{display:flex;justify-content:space-between;align-items:center;padding:0 6px}.eyebrow{font-size:12px;font-weight:600}.count{font:11px monospace;color:#8d9a90}.mode-tabs{display:flex;padding:3px;background:#f0f3ef;border-radius:6px;gap:3px}.mode-tabs button{flex:1;min-width:0;height:39px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;border-radius:4px;color:#77867b}.mode-tabs svg{width:16px;height:16px}.mode-tabs button.active{background:white;color:var(--green);box-shadow:0 1px 4px #314c3914}.room-select{display:flex;align-items:center;gap:16px;font-size:12px;padding:0 6px}.room-select label{color:var(--muted)}select{flex:1;min-width:0;border:1px solid var(--border);border-radius:4px;background:white;padding:7px 9px;color:inherit;font-size:12px}.scene-settings{border-top:1px solid var(--border);padding:16px 6px 0}.scene-settings h2,.panel-head h2{font-size:12px;font-weight:600;margin:0}.scene-settings h2{margin-bottom:12px}.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:10px;height:35px;cursor:pointer;position:relative}.toggle-row>span:first-child{display:flex;align-items:center;gap:9px;font-size:11px;color:#69776d}.toggle-row svg{width:15px;height:15px}.toggle-row input{position:absolute;right:0;width:30px;height:18px;opacity:0}.switch{width:29px;height:16px;border-radius:20px;background:#dce2dc;position:relative;pointer-events:none}.switch:after{content:"";position:absolute;width:12px;height:12px;top:2px;left:2px;border-radius:50%;background:white;transition:transform .15s}.toggle-row input:checked+.switch{background:#537c5e}.toggle-row input:checked+.switch:after{transform:translateX(13px)}.toggle-row input:focus-visible+.switch{outline:2px solid #386b4b;outline-offset:3px}.toggle-row:has(input:disabled){opacity:.42;cursor:default}.source-preview{margin-top:auto;padding:12px 6px 0}.source-preview button{display:flex;align-items:center;gap:12px;text-align:left;width:100%;padding:12px 0;border-top:1px solid var(--border)}.source-preview img{width:43px;height:49px;object-fit:cover;border:1px solid #e5e8e3}.source-preview span{font-size:11px;display:flex;align-items:center;gap:26px;color:#68776d}.source-preview svg{width:14px}.stage{position:relative;min-width:0;overflow:hidden;background:#edf1ee}#scene{position:absolute;inset:0;touch-action:none;outline:none}#scene canvas{display:block;touch-action:none;width:100%;height:100%;outline:none}.scene-title{position:absolute;left:28px;top:26px;pointer-events:none}.scene-kicker{font:10px monospace;color:#84928a}.scene-title h2{font-size:22px;font-weight:500;margin:9px 0;color:#334b3d}.scene-tools{position:absolute;right:20px;top:24px;display:grid;gap:7px}.scene-tools .icon-button{background:#fffffff2}.compass{position:absolute;right:26px;bottom:50px;display:grid;gap:7px;justify-items:center;color:#86968b;font-size:9px;pointer-events:none}.compass svg{color:#667b6c;width:25px;height:25px}.stage-bottom{position:absolute;bottom:19px;left:28px;right:25px;display:flex;justify-content:space-between;font-size:10px;color:#77887a;pointer-events:none}.viewbar{height:60px;background:#fff;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 26px 0 270px;gap:20px}.view-tabs{display:flex;gap:6px}.view-tabs button{height:39px;min-width:82px;padding:0 16px;display:flex;align-items:center;justify-content:center;gap:9px;font-size:12px;border-radius:5px;color:#718174}.view-tabs button.active{background:#eaf1e6;color:#325c40}.view-tabs button:hover{background:#f3f6f0}.viewbar-right{display:flex;align-items:center;gap:8px;font-size:10px;color:#7a8b7c;white-space:nowrap}#labels-layer{position:absolute;inset:0;pointer-events:none}.room-label,.dimension-label{position:absolute;left:0;top:0;white-space:nowrap;transform:translate(-50%,-100%);font-size:10px;padding:6px 9px;background:#ffffffec;border:1px solid #d8e2d5;border-radius:4px;color:#3e5e49;pointer-events:auto}.dimension-label{font:11px monospace;color:#866c56;pointer-events:none;border:0}#loading{position:absolute;inset:0;display:grid;place-items:center;background:#edf1ee;color:#63796a;font-size:13px}dialog{padding:0;border:1px solid var(--border);border-radius:7px;width:min(960px,94vw);height:90dvh;background:#fff;color:#334738}dialog::backdrop{background:#17291a70;backdrop-filter:blur(3px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);height:63px}.dialog-head h2{font-size:15px;font-weight:500}.drawing-scroll{height:calc(100% - 63px);overflow:auto;text-align:center;padding:16px}.drawing-scroll img{max-width:100%;height:auto;width:850px}#reset-dialog{width:min(380px,92vw);height:auto}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;padding:20px}#toast{position:fixed;left:50%;bottom:78px;max-width:calc(100vw - 26px);transform:translateX(-50%);background:#284e39;color:white;padding:12px 18px;border-radius:5px;font-size:12px;z-index:20}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.panel-head span{font:10px monospace;color:var(--muted)}.furniture-panel{border-top:1px solid var(--border);padding:15px 5px 0}.furniture-list{max-height:190px;overflow:auto;border-bottom:1px solid var(--border);padding-bottom:8px}.furniture-row{display:flex;align-items:center;gap:9px;width:100%;padding:9px 8px;text-align:left;border-radius:4px;font-size:11px}.furniture-row svg{width:15px;height:15px;color:#8c9c90}.furniture-row span{flex:1}.furniture-row small{font-size:9px;color:#8d9a91}.furniture-row:hover{background:#f1f5f0}.furniture-row.active{background:#e9f1e6;color:#376349}.selection-detail{padding-top:14px}.selection-detail .panel-head{display:block;min-height:39px}.selection-detail .panel-head span{display:block;margin-top:5px}.coordinates{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.coordinates label{font-size:10px;color:var(--muted)}.coordinates input{margin-top:6px;width:100%;min-width:0;padding:7px 3px 7px 6px;font-size:11px;color:#3b5242;border:1px solid var(--border);border-radius:3px;background:#fff}.placement-actions{display:flex;align-items:center;gap:7px;margin-top:11px}.small-action{display:grid;place-items:center;width:34px;height:32px;background:#fff;border:1px solid var(--border);border-radius:4px}.small-action:hover{background:#edf3ea}.small-action svg{width:16px;height:16px}.snap-label{margin-left:auto;font-size:10px;display:flex;align-items:center;gap:4px;white-space:nowrap}.snap-label input{accent-color:#527b5c;margin:0}#save-state{font-size:9px;color:var(--muted);margin-left:auto}#selection-state{font-size:11px;color:#49765a}#selection-state.blocked{color:#ac5542}.placing #scene{cursor:crosshair}.placing .source-preview{display:none}.placing .scene-settings{padding-top:13px}.placing .toggle-row{height:30px}#walk-crosshair{position:absolute;left:50%;top:50%;width:7px;height:7px;border:1px solid #fff;border-radius:50%;background:#395b4380;transform:translate(-50%,-50%);pointer-events:none}#walk-status{position:absolute;left:50%;top:22px;transform:translateX(-50%);display:flex;align-items:center;gap:12px;padding:5px 6px 5px 14px;background:#fffffff2;border:1px solid var(--border);border-radius:5px;font-size:11px;color:#3c6248;white-space:nowrap}#walk-status .icon-button{width:30px;height:30px}#walk-status .text-button{font-size:11px;padding:4px}#walk-status svg{width:15px;height:15px}.walking .scene-title{background:#ffffffed;padding:9px 12px;border-radius:4px}.walking .scene-title h2{font-size:16px;margin:0}.walking .scene-kicker,.walking .stage-bottom,.walking .compass,.walking .scene-tools{display:none}#walk-pad{position:absolute;left:18px;bottom:22px;display:none;grid-template-columns:repeat(3,43px);grid-template-rows:repeat(2,43px);gap:5px;touch-action:none;user-select:none}#walk-pad button{width:43px;height:43px;touch-action:none;background:#fffffff0}#walk-pad button:first-child{grid-column:2}#walk-pad button:nth-child(2){grid-column:1;grid-row:2}#walk-pad button:nth-child(3){grid-column:2;grid-row:2}#walk-pad button:nth-child(4){grid-column:3;grid-row:2}#walk-pad button.held{background:#dcebdd;border-color:#648366}
@media(max-height:850px) and (min-width:761px){.sidebar{gap:13px;padding-top:18px}.placing .furniture-list{max-height:120px}.placing .scene-settings h2{display:none}.placing .scene-settings{padding-top:8px}.placing .toggle-row{height:26px}.placing .furniture-panel{padding-top:10px}.placing .selection-detail{padding-top:9px}}
@media(max-width:1060px){.header-meta{display:none}.viewbar-right{display:none}.workspace{grid-template-columns:232px minmax(0,1fr)}.sidebar{padding-left:12px;padding-right:12px}.viewbar{padding-left:244px}}
@media(pointer:coarse){#walk-pad{display:grid}}
@media(max-width:760px){.header{height:64px;padding:0 12px;gap:8px}.brand{gap:8px}.brand h1{font-size:16px}.brand div>span{font-size:9px}.brand-icon{width:32px;height:32px}.header-actions{gap:5px}.header-actions .icon-button{width:32px;height:32px}.text-button{padding:7px}.header-actions .text-button span{display:none}.workspace{display:flex;flex-direction:column;height:auto;min-height:0}.sidebar{display:contents}.sidebar-title,.source-preview{display:none}.mode-tabs{order:-3;border-radius:0;padding:7px 14px;background:#fff;border-bottom:1px solid var(--border);height:53px;gap:9px}.mode-tabs button{height:37px;background:#f2f5f0}.mode-tabs button.active{background:#e4eedf;box-shadow:none}.stage{order:-2;height:calc(100dvh - 205px);min-height:380px;max-height:900px}.room-select{order:-1;padding:12px 18px;background:white;border-top:1px solid var(--border)}.scene-settings{margin:0;padding:16px 22px 76px;display:grid;grid-template-columns:1fr 1fr;column-gap:24px;background:white}.scene-settings h2{grid-column:1/-1}.furniture-panel{background:white;padding:15px 18px}.furniture-panel>.panel-head{margin-bottom:8px}.furniture-list{max-height:128px;display:grid;grid-template-columns:1fr 1fr;gap:3px 10px}.selection-detail .panel-head{min-height:22px;display:flex}.selection-detail .panel-head span{margin:0}.coordinates input{padding:9px}.placement-actions{display:inline-flex;gap:9px;vertical-align:middle;margin-right:12px}.small-action{width:36px;height:35px}.snap-label{margin-left:4px}.scene-title{left:16px;top:20px}.scene-title h2{font-size:18px}.scene-kicker{font-size:9px}.scene-tools{right:12px;top:17px;gap:6px}.scene-tools .icon-button{width:32px;height:32px}.stage-bottom{left:16px;right:12px;font-size:9px}.stage-bottom>span:last-child{display:none}.compass{right:16px;bottom:43px}.viewbar{position:fixed;bottom:0;left:0;right:0;height:56px;padding:0 7px;z-index:5}.view-tabs{width:100%;gap:3px}.view-tabs button{flex:1;min-width:0;padding:0 6px;gap:6px;font-size:11px}.view-tabs svg{width:16px;height:16px}.room-label{font-size:9px;padding:4px 6px}.placing .stage{height:calc(100dvh - 302px);min-height:320px}.placing .room-select{display:none}.placing .furniture-list{max-height:78px}.placing .furniture-panel{padding:12px 18px}.placing .coordinates{gap:9px}.placing .scene-settings{padding-bottom:76px}.walking .stage{height:calc(100dvh - 173px);min-height:360px}#walk-status{top:auto;bottom:22px;left:auto;right:12px;transform:none}#walk-state{max-width:90px;white-space:normal}.walking .scene-title{left:12px;top:16px}.walking .room-select,.walking .scene-settings{display:none}#toast{font-size:11px;padding:10px 13px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Keep the viewport and bottom navigation on a stable compositing layer. */
html,body{height:100%;overflow:hidden;overscroll-behavior:none}
body{overflow-x:hidden}
.workspace{overflow:hidden}
.viewbar{flex-shrink:0;transform:translateZ(0);backface-visibility:hidden}
@media(max-width:760px){.workspace{overflow:hidden}.viewbar{will-change:transform}}
@media(max-width:760px){html,body{height:auto;min-height:100%;overflow-y:auto;overflow-x:hidden}.workspace{overflow:visible}}
#compare-ui{position:absolute;inset:0;z-index:4;pointer-events:none;--split:50%;font-size:11px}.compare-pill{position:absolute;top:20px;padding:8px 13px;border-radius:18px;color:#fff;font-weight:600;letter-spacing:.04em;background:#49514dce;box-shadow:0 2px 8px #26382d25}.compare-pill.before{left:18px}.compare-pill.after{right:18px;background:#30624cdd}.compare-divider{position:absolute;top:0;bottom:0;left:var(--split);width:2px;background:#fff;box-shadow:0 0 0 1px #314a3c55,0 0 12px #1f332655;transform:translateX(-1px)}.compare-divider:after{content:'‹  ›';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:#30624c;font-size:18px;box-shadow:0 2px 10px #1f332644;letter-spacing:-.15em;padding-right:3px}.compare-control{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;align-items:center;gap:11px;padding:9px 13px;background:#fffffff0;border:1px solid #d8e2d8;border-radius:6px;box-shadow:0 2px 10px #233a2d18;pointer-events:auto;white-space:nowrap}.compare-control label{color:#46624e}.compare-control input{width:min(270px,34vw);accent-color:#30624c}.compare-control output{font:10px monospace;color:#728278;min-width:40px;text-align:right}@media(max-width:760px){.mode-tabs button{gap:3px;font-size:10px;padding:0 3px}.mode-tabs svg{width:14px;height:14px}.compare-pill{top:12px;padding:6px 9px;font-size:9px}.compare-control{left:12px;right:12px;bottom:12px;transform:none;gap:7px;padding:7px 9px}.compare-control label{font-size:9px}.compare-control input{flex:1;min-width:80px;width:auto}.compare-control output{font-size:9px}.compare-divider:after{width:32px;height:32px;font-size:15px}}
.pivot-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:13px 0 7px;color:var(--muted);font-size:10px}.pivot-heading .small-action{width:auto;height:27px;padding:0 9px;font-size:10px;color:#496b53}.pivot-coordinates{grid-template-columns:repeat(2,minmax(0,1fr)) auto;align-items:end}.pivot-coordinates>span{padding:7px 0;color:#d27a40;font:11px monospace;text-align:right;white-space:nowrap}#angle-range{display:block;width:100%;margin:10px 0 0;accent-color:#527b5c}#angle-range:disabled{opacity:.45}
@media(max-width:760px){.pivot-heading{margin-top:11px}.pivot-coordinates>span{padding-top:9px}.pivot-coordinates input{padding:9px 3px 9px 6px}#angle-range{margin-top:11px}}
#compare-before-image{position:absolute;inset:0;z-index:2;overflow:hidden;background:#e5e5e5;clip-path:inset(0 calc(100% - var(--split)) 0 0);pointer-events:none}#compare-before-image img{position:absolute;inset:4%;width:92%;height:92%;object-fit:contain}.compare-divider{z-index:4}.compare-help{position:absolute;top:18px;left:50%;transform:translateX(-50%);z-index:5;padding:8px 14px;border-radius:18px;background:#ffffffeb;border:1px solid #d8e2d8;box-shadow:0 2px 10px #233a2d20;color:#46624e;white-space:nowrap;font-size:11px}.compare-pill{z-index:5}.compare-hitarea{position:absolute;inset:0;z-index:6;cursor:ew-resize;pointer-events:auto}.compare-before-image~#compare-slider{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;z-index:7;cursor:ew-resize;pointer-events:none}.placement-help{margin:12px 0 0;color:#718076;font-size:10px;line-height:1.55}.placing #rotation-hint{display:block;position:absolute;left:28px;top:108px;z-index:3;padding:8px 12px;border-radius:5px;background:#fffef4e8;border:1px solid #e3d4a8;color:#855d31;font-size:11px;box-shadow:0 2px 8px #394a3a18;pointer-events:none}.placing #rotation-hint[hidden]{display:none}.scale-label{position:absolute;z-index:4;transform:translate(-50%,-50%);padding:3px 6px;border-radius:4px;background:#fffef3e8;border:1px solid #d27a40;color:#855d31;font-size:10px;white-space:nowrap;pointer-events:none}.scale-toggle{margin-left:auto}@media(max-width:760px){.compare-help{top:10px;font-size:9px;padding:6px 10px}.compare-pill{top:12px}.placing #rotation-hint{left:16px;top:88px;right:16px;text-align:center;font-size:10px;padding:7px 9px}.placement-help{font-size:9px;margin-top:10px}.scale-toggle{margin-left:4px}.scale-label{font-size:9px;padding:2px 5px}}