:root{font-family:Inter,system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#19383a;background:#f3f6f7;font-size:16px;color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer;border:1px solid #dce4e5;background:#fff;color:inherit;border-radius:10px;min-height:44px;padding:10px 16px}button:hover{background:#edf7f5}button:disabled{opacity:.4;cursor:default}button:focus-visible,input:focus-visible,#canvas-host:focus-visible{outline:3px solid #2b9b93;outline-offset:3px}button[aria-pressed=true],.primary{background:#183b3d;color:white;border-color:#183b3d}.primary:hover{background:#285456}[hidden]{display:none!important}#workspace{height:100vh;height:100dvh;display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-template-rows:92px minmax(0,1fr);overflow:hidden;background:#f3f6f7}header{grid-column:1/-1;display:flex;align-items:center;gap:24px;padding:20px 28px;border-bottom:1px solid #e0e7e8;background:#fff;z-index:3}.brand{font-weight:800;font-size:22px;letter-spacing:-1px;border-right:1px solid #e0e7e8;padding-right:24px}.brand span{color:#55bdb3}h1{font-size:18px;font-weight:600;margin:0}.identity{min-width:0}.identity p{color:#7b8a8d;margin:5px 0 0;font-size:13px}.header-actions{display:flex;gap:10px;margin-left:auto;flex-shrink:0}#stage{position:relative;min-height:0;overflow:hidden;background:radial-gradient(ellipse at 50% 42%,#fcfdfd 0%,#f3f6f7 72%)}#canvas-host{position:absolute;inset:0;touch-action:none}canvas{display:block;width:100%;height:100%;touch-action:none}.mode-switch{position:absolute;top:24px;left:50%;transform:translateX(-50%);display:flex;padding:4px;border:1px solid #dde5e5;border-radius:14px;background:#ffffffed;box-shadow:0 5px 20px #163a3907;white-space:nowrap}.mode-switch button{border:0;min-height:40px;font-size:14px}.tools{position:absolute;left:24px;top:100px;display:grid;gap:10px}.tools button{width:58px;height:62px;padding:5px;box-shadow:0 4px 14px #19383a06;display:grid;place-content:center}.tools span{font-size:27px;line-height:30px}.tools small{font-size:11px}.view-switch{position:absolute;bottom:64px;left:50%;transform:translateX(-50%);display:flex;gap:3px;padding:4px;background:#ffffffeb;border:1px solid #dfe6e7;border-radius:12px;white-space:nowrap}.view-switch button{font-size:14px;border:0;min-height:36px;padding:7px 16px}.stage-footer{position:absolute;bottom:22px;left:28px;right:28px;display:flex;justify-content:space-between;font-size:12px;color:#819193;pointer-events:none}#inspector{background:#fff;border-left:1px solid #e0e7e8;overflow:auto;padding:26px 22px;z-index:2}.section-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}h2{font-size:16px;font-weight:600;margin:0}.section-title span,.section-title output{font-size:14px;color:#819193}#explode-value{color:#217f79;font-variant-numeric:tabular-nums}.explode-controls{display:flex;align-items:center;gap:14px}.explode-controls input{width:100%;min-width:0;accent-color:#278d85;cursor:pointer;min-height:32px}.explode-controls button{font-size:13px;padding:7px 12px;min-height:36px;white-space:nowrap}.panel-note,.source-note{font-size:12px;color:#899698;line-height:1.7}.explode-section{padding-bottom:20px;border-bottom:1px solid #e8eded}.layers-section{padding-top:24px}.layer-actions{display:flex;gap:8px;margin-bottom:16px}.layer-actions button{flex:1;font-size:14px;min-height:38px;padding:7px;background:#f5f7f7}.layer{border-bottom:1px solid #edf1f1}.layer summary{display:flex;align-items:center;gap:9px;padding:12px 0;cursor:pointer;list-style:none}.layer summary::-webkit-details-marker{display:none}.chevron{color:#9aabad;font-size:16px}.layer[open] .chevron{transform:rotate(90deg)}.eye{width:40px;min-height:40px;padding:7px;border:0;background:#dff5f0;flex-shrink:0;display:grid;place-items:center}.eye svg{width:22px;height:22px}.eye[aria-pressed=false]{background:#f0f2f2;color:#98a7a9}.layer-label{flex:1;min-width:0}.layer-label strong{font-size:14px;font-weight:500;display:block;overflow-wrap:anywhere}.layer-label small{font-size:12px;color:#8b999b;display:block;margin-top:4px}.swatch{height:8px;width:8px;border-radius:50%;flex-shrink:0}.object-list{padding:0 0 10px 24px;display:grid;gap:4px}.object-row{display:flex;align-items:center;gap:8px;font-size:13px;padding:6px 0}.object-row input{width:18px;height:18px;accent-color:#217f79}.source-note{margin-top:22px}.message{position:absolute;inset:0;z-index:4;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:28px;text-align:center;background:#f3f6f7}.loading-mark{font-size:56px;color:#278d85;margin-bottom:18px}.message strong{font-size:20px}.message p{max-width:28em;color:#7b8b8c;line-height:1.8;font-size:14px}progress{width:200px;accent-color:#278d85}#empty{position:absolute;top:45%;left:50%;transform:translate(-50%,-50%);padding:18px;background:#fff;border:1px solid #dce5e6;border-radius:12px;text-align:center;font-size:14px}#empty button{display:block;margin:14px auto 0}#toast{position:fixed;z-index:200;bottom:30px;left:50%;transform:translateX(-50%);background:#183b3d;color:white;padding:14px 22px;border-radius:12px;font-size:14px;max-width:90vw}.panel-handle{display:none}#workspace.panel-closed{grid-template-columns:1fr}#workspace.panel-closed #inspector{display:none}dialog{border:1px solid #d9e4e4;border-radius:18px;padding:28px;max-width:min(440px,90vw);color:inherit}dialog::backdrop{background:#0d292a55}dialog p{font-size:14px;line-height:1.8;color:#748789}dialog label{font-size:14px}dialog input{display:block;width:100%;margin:8px 0 20px;padding:12px;border:1px solid #cddcdb;border-radius:8px;font-size:14px}.dialog-actions{display:flex;gap:8px}#workspace.expanded{position:fixed;inset:0;z-index:100}#workspace:fullscreen{width:100%;height:100%}@media(max-width:700px), (max-height:500px) and (pointer:coarse){#workspace{grid-template-columns:1fr;grid-template-rows:72px minmax(210px,1fr) minmax(180px,32dvh)}header{padding:12px 16px;gap:10px}.brand{display:none}h1{font-size:14px}.identity p{font-size:11px}.header-actions{gap:6px}.header-actions button{font-size:13px;padding:8px 10px;min-height:40px}#inspector{border:1px solid #dfe6e6;border-radius:20px 20px 0 0;padding:12px 20px 24px;box-shadow:0 -8px 28px #17373706}.panel-handle{display:block;width:38px;height:4px;background:#d6dddd;border-radius:4px;margin:0 auto 16px}.explode-section{padding-bottom:12px}.section-title{margin-bottom:8px}.explode-controls{gap:12px}.panel-note{margin:5px 0 0;font-size:11px}.layers-section{padding-top:16px}.source-note{font-size:11px}.mode-switch{top:14px}.mode-switch button{font-size:13px;padding:8px 14px;min-height:36px}.tools{left:12px;top:76px;gap:7px}.tools button{width:44px;height:48px;min-height:44px}.tools span{font-size:24px;line-height:25px}.tools small{font-size:10px}.view-switch{bottom:30px}.view-switch button{min-height:34px;padding:7px 12px;font-size:12px}.stage-footer{left:14px;right:14px;bottom:10px;font-size:10px;justify-content:center}.gesture{display:none}#workspace.panel-closed{grid-template-rows:72px minmax(0,1fr)}#toast{bottom:36dvh;width:max-content;max-width:90vw}}
.panel-tabs{display:none}@media(max-width:700px), (max-height:500px) and (pointer:coarse){.panel-tabs{display:flex;gap:8px;margin-bottom:12px;position:sticky;top:-12px;background:white;padding:6px 0;z-index:2}.panel-tabs button{flex:1;font-size:14px;min-height:40px;padding:7px}.panel-handle{display:none}#inspector[data-panel=layers] .explode-section,#inspector[data-panel=explode] .layers-section{display:none}.layers-section{padding-top:0}.source-note{margin-top:14px}.stage-footer{font-size:11px}.identity p{font-size:12px}.view-switch button{font-size:14px}.panel-note{font-size:12px}}
/* Mobile-first viewing: the canvas keeps its size while panels overlay it. */
.mobile-dock{display:none}#close-panel{flex:0 0 auto}#focus-toggle{position:absolute;right:20px;top:24px;z-index:5;font-size:13px;background:#ffffffdf}.tools{z-index:5}.viewing header,.fullscreen-mode header{display:none!important}#workspace.viewing,#workspace.fullscreen-mode{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr)}.viewing #inspector{display:none!important}.viewing .mode-switch,.viewing .view-switch,.viewing .stage-footer,.viewing .mobile-dock,.viewing .tools button:not(#fullscreen){display:none!important}.viewing .tools{left:auto;right:20px;top:78px}.viewing #focus-toggle{top:20px}#workspace.fullscreen-mode #inspector{position:absolute;right:0;top:90px;bottom:0;width:320px;z-index:6}.tools button small{font-size:12px}
@media(max-width:700px), (max-height:500px) and (pointer:coarse){
 #workspace,#workspace.panel-closed{position:relative;grid-template-columns:1fr;grid-template-rows:56px minmax(0,1fr)}
 header{padding:8px 14px;gap:8px}h1{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.identity p,.brand,#layers-toggle{display:none}.header-actions button{min-height:36px;padding:6px 10px;font-size:13px}
 #stage{grid-column:1;grid-row:2}.mode-switch{top:12px;left:12px;transform:none;padding:3px}.mode-switch button{padding:6px 12px;min-height:36px}
 #focus-toggle{top:12px;right:12px;min-height:42px;padding:8px 10px;font-size:12px}
 .tools{top:68px;left:auto;right:12px;gap:8px}.tools button{width:44px;height:46px;background:#ffffffdf}.tools button small{font-size:11px}.tools #fit,.tools #rotate{display:none}.more-open .tools #fit,.more-open .tools #rotate{display:grid}
 .view-switch{display:none;bottom:78px;z-index:5}.views-open .view-switch{display:flex}.view-switch button{min-height:44px}.stage-footer{bottom:82px;font-size:11px}.stage-footer #mode-caption{display:none}.stage-footer .gesture{display:block}
 .mobile-dock{position:absolute;display:flex;gap:6px;bottom:max(12px,env(safe-area-inset-bottom));left:12px;right:12px;padding:5px;border:1px solid #dae4e3;border-radius:16px;background:#fffffff0;z-index:8;box-shadow:0 4px 20px #19383a0a}.mobile-dock button{flex:1;padding:7px 5px;border:0;font-size:14px;min-height:44px;background:transparent}.mobile-dock button[aria-expanded=true]{background:#183b3d;color:white}
 #workspace #inspector,#workspace.fullscreen-mode #inspector{position:absolute;left:10px;right:10px;top:auto;bottom:calc(76px + env(safe-area-inset-bottom));width:auto;max-height:42dvh;height:auto;padding:10px 16px 16px;border-radius:18px;border:1px solid #dbe5e4;box-shadow:0 8px 30px #183b3d15;z-index:7;overscroll-behavior:contain}
 #inspector[data-panel=explode]{max-height:230px}.source-note{display:none}.panel-tabs{top:-10px;margin-bottom:8px;gap:5px}.panel-tabs button{min-height:40px}.section-title{margin-bottom:8px}.layers-section .section-title h2{display:none}.layer-actions{margin-bottom:8px}.layer-actions button{min-height:40px}.layer summary{padding:9px 0}.panel-note{font-size:12px}.explode-section{border:0;padding:0}.explode-controls input{min-height:44px;touch-action:pan-y}
 #workspace.viewing,#workspace.fullscreen-mode{grid-template-rows:minmax(0,1fr)}.viewing #stage,.fullscreen-mode #stage{grid-row:1}.viewing .tools{right:12px;top:66px}.viewing #focus-toggle{top:12px}.viewing .tools #fullscreen{display:grid!important}#toast{bottom:90px;font-size:13px}
}
@media(max-height:480px) and (max-width:900px){#workspace{grid-template-rows:48px minmax(0,1fr)}#inspector{max-height:65dvh}.tools{top:68px;display:flex;right:12px;left:auto}.stage-footer{display:none}}
@media(max-width:700px), (max-height:500px) and (pointer:coarse){#empty{top:27%;z-index:6}.viewing #empty{top:45%}}

#workspace{position:relative}.filing-footer{position:absolute;bottom:0;left:0;right:0;z-index:9;text-align:center;font-size:11px;line-height:22px;background:#f3f6f7ed}.filing-footer a{color:#617779;text-decoration:none}.filing-footer a:hover{text-decoration:underline}.fullscreen-mode .filing-footer{display:none}.brand{max-width:240px;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(max-width:700px),(max-height:500px) and (pointer:coarse){.mobile-dock{bottom:calc(34px + env(safe-area-inset-bottom))}#workspace #inspector{bottom:calc(98px + env(safe-area-inset-bottom))}.stage-footer{bottom:104px}.view-switch{bottom:100px}.fullscreen-mode .mobile-dock{bottom:max(12px,env(safe-area-inset-bottom))}#workspace.fullscreen-mode #inspector{bottom:calc(76px + env(safe-area-inset-bottom))}}

#stage{background:#b8b8b8}.stage-footer{color:var(--stage-caption,#3d5052)}#background-dialog{width:min(440px,calc(100vw - 28px));padding:24px;border:1px solid #dce4e5;border-radius:18px;color:#19383a;background:#fff}#background-dialog::backdrop{background:#10282966}.background-note{font-size:13px;line-height:1.7;color:#65797b}.background-presets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:20px 0}.background-presets button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:8px 2px;font-size:12px;min-width:0}.background-swatch{width:30px;height:30px;border:1px solid #0002;border-radius:50%}.background-custom{display:flex;align-items:center;gap:12px;font-size:14px}.background-custom input{width:54px;height:44px;padding:3px;cursor:pointer;border:1px solid #dce4e5;border-radius:8px;background:white}.background-custom output{font:13px ui-monospace,monospace;color:#65797b}@media(max-width:700px),(max-height:500px) and (pointer:coarse){.tools #background{display:none}.more-open .tools #background{display:grid}#background-dialog{padding:20px}.background-presets{gap:5px}}