:root{color:#25342f;font-synthesis:none;-webkit-font-smoothing:antialiased;--green:#137c67;--muted:#8b959e;--line:#e9edef;--shadow:0 8px 35px #273e3510;background:#f7f8fa;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,Noto Sans CJK SC,sans-serif;font-size:14px}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button{color:inherit}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,#viewport:focus-visible{outline-offset:3px;outline:2px solid #4ca88f}a{color:inherit;text-decoration:none}svg.lucide{flex-shrink:0;width:17px;height:17px}button{transition:background .15s,box-shadow .15s,color .15s}button:hover:not(:disabled){filter:brightness(.97)}[hidden]{display:none!important}.site-header{background:#ffffffde;border-bottom:1px solid #e7ebec;align-items:center;gap:60px;height:82px;padding:0 48px;display:flex}.brand{letter-spacing:-.6px;align-items:center;gap:12px;font-size:21px;font-weight:760;display:flex}.brand img{width:35px;height:35px}.brand-light{letter-spacing:0;color:#728179;margin-left:7px;font-size:17px;font-weight:450}.header-nav{align-items:center;gap:15px;height:100%;font-size:13px;display:flex}.nav-active{align-items:center;height:100%;font-weight:600;display:flex;position:relative}.nav-active:after{content:"";background:var(--green);height:2px;position:absolute;bottom:0;left:0;right:0}.version-tag{letter-spacing:.6px;color:#809088;background:#fafcfb;border:1px solid #e1e8e4;border-radius:4px;padding:4px 6px;font-size:9px}.header-actions{align-items:center;gap:27px;margin-left:auto;display:flex}.text-button{color:#7f8a87;white-space:nowrap;background:0 0;border:0;align-items:center;gap:7px;padding:0;font-size:12px;display:inline-flex}.text-button:hover{color:var(--green)}main{max-width:1760px;margin:0 auto;padding:38px 48px 0}.intro{justify-content:space-between;align-items:center;gap:20px;margin-bottom:31px;display:flex}.eyebrow{letter-spacing:2px;color:#8b9992;align-items:center;gap:8px;font-size:9px;font-weight:650;display:flex}.eyebrow>span{background:#429c7e;border-radius:50%;width:5px;height:5px}h1{letter-spacing:-1px;margin:10px 0 9px;font-size:30px;font-weight:650;line-height:1.4}h1>span{color:var(--green)}.intro p{color:#8b9692;letter-spacing:.3px;margin:0;font-size:12px}.intro-actions{gap:12px;padding-top:25px;display:flex}.button{white-space:nowrap;border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;gap:8px;height:41px;padding:0 17px;font-size:12px;font-weight:550;display:inline-flex}.primary{background:var(--green);color:#fff;box-shadow:0 3px 7px #137c6715}.secondary{color:#596a62;background:#fff;border-color:#e1e7e4}.button.primary:hover:not(:disabled){background:#106e5b}.button .lucide:last-child:not(:first-child){width:14px}.workspace{box-shadow:var(--shadow);background:#fff;border:1px solid #e1e7e4;border-radius:11px;overflow:hidden}.document-bar{border-bottom:1px solid var(--line);align-items:center;gap:20px;height:57px;padding:0 21px;display:flex}.document-title{align-items:center;gap:10px;display:flex}.document-title>svg{color:#8b9c92;width:16px}.document-title input{color:#485d52;background:0 0;border:0;border-radius:4px;outline:none;width:173px;height:30px;padding:0 4px;font-size:12px;font-weight:550}.document-title input:hover,.document-title input:focus{background:#f5f8f6}.file-badge{color:#98a49e;border:1px solid #e9edeb;border-radius:4px;padding:2px 5px;font-family:Consolas,monospace;font-size:10px}.save-info{color:#97a39c;align-items:center;gap:18px;margin-left:auto;font-size:10px;display:flex}.save-info>span:first-child{align-items:center;gap:7px;display:flex}.tiny-dot{background:#7ba18b;border-radius:50%;flex-shrink:0;width:5px;height:5px;display:inline-block}.divider{background:#e5eae7;flex-shrink:0;width:1px;height:15px;display:inline-block}.panels{grid-template-columns:minmax(330px,.395fr) minmax(350px,.605fr);height:clamp(520px,100dvh - 339px,820px);min-height:520px;display:grid}.editor-panel{border-right:1px solid var(--line);flex-direction:column;min-width:0;display:flex;overflow:hidden}.panel-toolbar{border-bottom:1px solid var(--line);flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;height:57px;padding:0 18px;display:flex}.engine-tabs{background:#f4f6f5;border:1px solid #edf0ee;border-radius:6px;gap:5px;padding:4px;display:flex}.engine-tabs button{color:#8c9792;background:0 0;border:0;border-radius:4px;padding:6px 11px;font-size:11px;font-weight:550}.engine-tabs [aria-selected=true]{color:var(--green);background:#fff;box-shadow:0 1px 4px #263d3112}.template-picker{color:#8c9791;align-items:center;display:flex;position:relative}.template-picker select{appearance:none;color:inherit;cursor:pointer;background:0 0;border:0;max-width:106px;padding:8px 19px 8px 6px;font-size:11px}.template-picker svg{pointer-events:none;width:12px;position:absolute;right:0}.editor-label{color:#a1aba5;letter-spacing:1px;flex-shrink:0;justify-content:space-between;align-items:center;height:43px;padding:0 16px 0 22px;font-size:10px;display:flex}.editor-label>span{align-items:center;gap:7px;display:flex}.editor-label>span svg{width:13px}.editor-label>div{gap:2px;display:flex}.editor-label .icon-button{width:27px;height:27px}.editor-label .icon-button svg{width:13px}.dot-separator{color:#c5ceca;padding:0 8px}.icon-button{color:#8e9b95;background:0 0;border:0;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;padding:0;display:inline-flex}.icon-button:hover{color:var(--green);background:#edf3f0}#editor{flex:1;min-height:100px;position:relative;overflow:hidden}.drop-active{outline:2px dashed var(--green);outline-offset:-8px}.cm-editor{height:100%}.cm-panels{font-size:11px}.editor-bottom{border-top:1px solid #f0f2f1;flex-shrink:0;justify-content:space-between;align-items:center;height:57px;padding:0 20px;display:flex}.switch-label{color:#8d9b92;cursor:pointer;align-items:center;gap:8px;font-size:11px;display:flex}.switch-label>input{opacity:0;pointer-events:none;position:absolute}.switch{background:#d0d9d4;border-radius:12px;width:25px;height:14px;display:inline-block;position:relative}.switch:after{content:"";background:#fff;border-radius:50%;width:8px;height:8px;transition:transform .15s;position:absolute;top:3px;left:3px}.switch-label>input:checked+.switch{background:#418d73}.switch-label>input:checked+.switch:after{transform:translate(11px)}.switch-label>input:focus-visible+.switch{outline-offset:3px;outline:2px solid #4ca88f}.render-button{color:#5c7466;background:0 0;border:0;align-items:center;gap:7px;font-size:11px;display:flex}.render-button svg{fill:#5c7466;width:12px}.render-button>span{color:#a5b0a9;background:#f6f8f6;border:1px solid #e9eeeb;border-radius:3px;margin-left:4px;padding:2px 4px;font-family:Consolas,monospace;font-size:10px}.is-loading svg{animation:.8s infinite alternate pulse}.preview-panel{background:#fbfcfb;flex-direction:column;min-width:0;display:flex;position:relative}.preview-toolbar{background:#fff;padding:0 20px}.preview-title{color:#62746a;align-items:center;gap:14px;font-size:12px;font-weight:550;display:flex}.preview-title>span{color:#9ba79f;align-items:center;gap:5px;font-size:10px;font-weight:400;display:flex}.preview-title>span[data-state=error]{color:#bd6a57}.preview-title>span[data-state=error] .tiny-dot{background:#bd6a57}.preview-title>span[data-state=rendering] .tiny-dot{background:#bfac69;animation:.6s infinite alternate pulse}.preview-actions{align-items:center;gap:5px;display:flex}.preview-actions .divider{margin:0 7px}#viewport{cursor:grab;touch-action:none;background-color:#f8faf9;background-image:radial-gradient(#dfe7e2 .8px,#0000 .8px);background-size:18px 18px;flex:1;min-height:0;position:relative;overflow:hidden}#viewport.dragging{cursor:grabbing}#diagram-layer{transform-origin:0 0;pointer-events:none;-webkit-user-select:none;user-select:none;will-change:transform;position:absolute;top:0;left:0}#diagram-layer>svg{display:block;overflow:visible}.canvas-meta{z-index:1;pointer-events:none;flex-direction:column;gap:7px;display:flex;position:absolute;top:20px;left:23px}.canvas-meta>span:first-child{letter-spacing:1.7px;color:#a4b0a9;font-size:8px}.canvas-meta>span:last-child{letter-spacing:.5px;color:#b6c0ba;font-family:Consolas,monospace;font-size:10px}.canvas-controls{pointer-events:none;justify-content:space-between;align-items:center;display:flex;position:absolute;bottom:20px;left:23px;right:23px}.zoom-controls{pointer-events:auto;background:#fffffff5;border:1px solid #e5eae7;border-radius:7px;align-items:center;gap:4px;height:39px;padding:0 6px;display:flex;box-shadow:0 2px 7px #21492e07}.zoom-controls .icon-button{width:27px;height:29px}.zoom-controls .lucide{width:15px;height:15px}.zoom-controls .divider{margin:0 4px}#zoom-reset{color:#68796e;font-variant-numeric:tabular-nums;background:0 0;border:0;min-width:42px;padding:0;font-size:11px}.canvas-tip{color:#a0aea5;align-items:center;gap:7px;font-size:10px;display:flex}.canvas-tip .lucide{width:12px;height:12px}.workspace-footer{border-top:1px solid var(--line);color:#a2ada6;background:#fdfefd;justify-content:space-between;align-items:center;gap:16px;height:34px;padding:0 21px;font-size:9px;display:flex}.workspace-footer>span{white-space:nowrap;align-items:center;display:flex}.workspace-footer .lucide{width:12px;height:12px;margin-right:6px}.page-footer{color:#a8b3ac;justify-content:space-between;padding:20px 0;font-size:10px;display:flex}.page-footer>span:last-child{letter-spacing:1.2px;align-items:center;gap:14px;font-size:8px;display:flex}.footer-mark{color:#548b71;font-size:18px}#canvas-empty{pointer-events:none;color:#849c8e;flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex;position:absolute;inset:0}#canvas-empty p{margin:5px;font-size:14px}#canvas-empty>span:last-child{color:#b0bdb5;font-size:11px}.empty-icon{background:#fff9;border:1px solid #e2eae5;border-radius:17px;justify-content:center;align-items:center;width:57px;height:57px;display:flex}.empty-icon svg{color:#8aaa98;width:26px;height:26px}#stale-label{color:#aa9153;white-space:nowrap;pointer-events:none;background:#fff8e8;border:1px solid #f0e2bc;border-radius:5px;padding:7px 12px;font-size:10px;position:absolute;top:18px;left:50%;transform:translate(-50%)}.error-panel{color:#ac6e57;background:#fcf3ef;border:1px solid #f0ddd3;border-radius:6px;max-height:180px;margin:5px 14px 12px;padding:12px;font-size:11px;overflow:auto}.error-panel strong{font-size:11px;font-weight:550}.error-panel pre{white-space:pre-wrap;word-break:break-word;max-height:85px;font-size:10px;line-height:1.6;overflow:auto}.error-panel>span{color:#b68c79;font-size:9px}.editor-collapsed .panels{grid-template-columns:1fr}.editor-collapsed .editor-panel{display:none}.preview-panel:fullscreen{height:100vh}.preview-panel[data-theme=dark] #viewport{background-color:#1c252b;background-image:radial-gradient(#344047 .8px,#0000 .8px)}.preview-panel[data-theme=dark] .canvas-meta>span{color:#7b8d91}.preview-panel[data-theme=dark] .canvas-tip{color:#8b9c9e}dialog{color:#33483b;border:1px solid #e4ebe6;border-radius:16px;width:468px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 48px);padding:28px;overflow:auto;box-shadow:0 25px 100px #18382f2b}dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#1f342d50}.dialog-heading{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.dialog-icon{width:39px;height:39px;color:var(--green);background:#eaf4ef;border-radius:10px;place-items:center;display:grid}.dialog-icon .lucide{width:20px;height:20px}h2{letter-spacing:-.5px;margin:0 0 10px;font-size:22px;font-weight:620}.dialog-subtitle{color:#91a095;margin:0 0 24px;font-size:11px;line-height:1.9}.field-label{color:#7c8d81;margin:19px 0 9px;font-size:11px;display:block}.text-input{color:#526e5c;background:#fcfdfc;border:1px solid #dfe7e1;border-radius:6px;width:100%;height:40px;padding:0 12px;font-size:12px}.format-grid{grid-template-columns:repeat(3,1fr);gap:9px;display:grid}.format-option{cursor:pointer;border:1px solid #e1e8e3;border-radius:7px;justify-content:space-between;align-items:center;padding:13px 11px;display:flex;position:relative}.format-option input{opacity:0;width:0;position:absolute}.format-option:has(input:checked){background:#f1f8f4;border-color:#579f80}.format-option:has(input:focus-visible){outline-offset:2px;outline:2px solid #4ca88f}.format-option strong{letter-spacing:.3px;font-size:12px;font-weight:600;display:block}.format-option small{color:#9aa99f;margin-top:5px;font-size:9px;display:block}.format-option svg{color:#4b9977;opacity:0;width:14px;height:14px}.format-option:has(input:checked) svg{opacity:1}.export-settings{grid-template-columns:1fr 1fr;gap:12px;margin-top:21px;display:grid}.export-settings label{color:#7c8d81;font-size:11px}.export-settings select{color:#688070;background:#fff;border:1px solid #e1e8e3;border-radius:6px;width:100%;height:36px;margin-top:8px;padding:0 10px;font-size:11px;display:block}.export-settings select:disabled{opacity:.4}.export-note{color:#9caaa0;min-height:30px;margin-top:16px;font-size:10px;line-height:1.7}.download-button{width:100%;height:42px;margin-top:10px}.inline-error{color:#bb725c;background:#fdf3ef;border-radius:5px;padding:10px;font-size:11px;line-height:1.8}.help-list{flex-direction:column;gap:18px;display:flex}.help-list strong{color:#54715e;font-size:12px;font-weight:550}.help-list p{color:#8a9b90;margin:7px 0 0;font-size:11px;line-height:1.9}kbd{background:#f8faf8;border:1px solid #e2e8e3;border-radius:3px;padding:1px 4px;font-size:10px}.dialog-buttons{justify-content:flex-end;gap:10px;display:flex}#toast{color:#f7fffa;opacity:0;pointer-events:none;z-index:10;background:#264c3f;border-radius:8px;max-width:calc(100vw - 32px);padding:12px 20px;font-size:12px;line-height:1.7;transition:all .2s;position:fixed;bottom:28px;left:50%;transform:translate(-50%,16px);box-shadow:0 8px 30px #15392a30}#toast.show{opacity:1;transform:translate(-50%)}@keyframes pulse{0%{opacity:.35}to{opacity:1}}@media (width>=1600px){main{padding-top:45px}.intro{margin-bottom:36px}.panels{height:calc(100dvh - 359px)}}@media (width<=1100px){.site-header{gap:35px;padding:0 26px}main{padding:28px 26px 0}.panels{grid-template-columns:minmax(310px,.44fr) minmax(300px,.56fr)}.canvas-tip{display:none}.save-info{gap:12px}.intro{margin-bottom:25px}.panel-toolbar{padding:0 12px}.workspace-footer{font-size:8px}}@media (width<=760px){.site-header{gap:25px;height:64px;padding:0 19px}.brand{font-size:18px}.brand img{width:31px;height:31px}.brand-light{font-size:14px}.header-nav{display:none}.header-actions{gap:16px}.header-actions>a{display:none}.header-actions .text-button{font-size:11px}main{padding:24px 15px 0}.intro{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:21px}.eyebrow{font-size:8px}h1{margin-top:8px;font-size:27px}.intro p{font-size:10px}.intro-actions{align-self:flex-end;margin-top:-2px;padding:0}.button{height:36px;padding:0 13px;font-size:11px}.document-bar{height:49px;padding:0 14px}.document-title input{width:145px;font-size:11px}.save-info>#save-status,.save-info>.divider{display:none}.save-info .text-button{font-size:0}.save-info .text-button svg{width:16px}.panels{flex-direction:column;height:auto;min-height:0;display:flex}.editor-panel{border-right:0;border-bottom:1px solid var(--line);height:370px}.preview-panel{height:460px}.panel-toolbar{height:50px;padding:0 15px}.editor-label{height:33px}.editor-bottom{height:48px}.cm-scroller{font-size:12px}.editor-collapsed .preview-panel{height:70dvh}.workspace-footer{height:36px;padding:0 14px;font-size:8px}.workspace-footer>span:last-child{display:none}.page-footer{padding:16px 5px;font-size:9px}.page-footer>span:last-child{letter-spacing:.8px;gap:5px;font-size:6px}.page-footer .footer-mark{font-size:14px}.canvas-controls{bottom:16px;left:16px}.canvas-meta{top:17px;left:17px}.preview-panel:fullscreen{height:100dvh}.preview-title{font-size:11px}dialog{padding:24px}h2{font-size:20px}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
