:root{color:#182125;font-synthesis:none;text-rendering:optimizelegibility;--page:#f2f5f6;--surface:#fff;--surface-raised:#fbfcfc;--surface-muted:#edf2f3;--surface-accent:#dcefeb;--text:#182125;--text-soft:#526166;--text-faint:#68777c;--border:#d2dcdf;--border-strong:#a9b8bc;--accent:#0d766d;--accent-strong:#075e57;--accent-ink:#f3fffd;--danger:#a13f45;--danger-soft:#f7e8e9;--danger-border:#e2b9bc;--shadow:0 12px 34px #1e3b4014;--radius-panel:12px;--radius-control:8px;--footer-height:28px;background:#f2f5f6;font-family:Aptos,Segoe UI Variable Text,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}:root[data-theme=dark]{color:#e1e9eb;--page:#0f1416;--surface:#141b1e;--surface-raised:#172024;--surface-muted:#1c272b;--surface-accent:#173832;--text:#e1e9eb;--text-soft:#a7b5b9;--text-faint:#819095;--border:#29373b;--border-strong:#45565b;--accent:#55c0b1;--accent-strong:#79d3c6;--accent-ink:#072723;--danger:#ef8d93;--danger-soft:#3c262a;--danger-border:#704249;--shadow:0 18px 48px #030a0c52;background:#0f1416}*{box-sizing:border-box}html{background:var(--page);scroll-behavior:smooth;min-width:320px}body{min-width:320px;min-height:100dvh;color:var(--text);background:var(--page);margin:0}button,select,input{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,a{color:inherit}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 38%, transparent);outline-offset:2px}.visually-hidden{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.app-shell,.app-mount{min-height:calc(100dvh - var(--footer-height))}.noscript-message{max-width:720px;color:var(--text-soft);margin:24px auto;padding:0 18px;font-size:14px;line-height:1.7}.app-header{z-index:20;border-bottom:1px solid color-mix(in srgb, var(--border) 82%, transparent);background:color-mix(in srgb, var(--page) 94%, transparent);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);height:60px;position:sticky;top:0}.header-inner{grid-template-columns:minmax(190px,1fr) auto;align-items:center;width:min(100%,1920px);height:100%;margin:0 auto;padding:0 18px;display:grid}.brand{letter-spacing:-.01em;justify-self:start;align-items:center;gap:10px;font-size:15px;font-weight:730;text-decoration:none;display:inline-flex}.brand-mark{border-radius:var(--radius-control);width:34px;height:34px;color:var(--accent-ink);background:var(--accent);place-items:center;display:grid;box-shadow:inset 0 1px #f3faf542}.header-actions{justify-self:end;align-items:center;gap:8px;display:flex}.icon-button{border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface);cursor:pointer;justify-content:center;align-items:center;width:38px;min-height:38px;padding:0;transition:transform .12s,border-color .15s,background-color .15s;display:inline-flex}.icon-button:hover{border-color:var(--border-strong);background:var(--surface-raised)}.icon-button:active,.button:active:not(:disabled),.pane-button:active:not(:disabled){transform:translateY(1px)scale(.99)}.workspace-page,.simple-page,.app-footer{width:min(100%,1920px);margin:0 auto;padding-left:18px;padding-right:18px}.workspace-page{padding-top:18px;padding-bottom:2px}.simple-page-heading h1{letter-spacing:-.045em;margin:0;font-size:clamp(30px,4vw,46px);line-height:1.08}.simple-page-heading p{max-width:64ch;color:var(--text-soft);margin:10px 0 0;font-size:15px;line-height:1.65}.workbench{border:1px solid var(--border);border-radius:var(--radius-panel);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}html.workbench-fullscreen,html.workbench-fullscreen body{overflow:hidden}.workbench.is-fullscreen{z-index:60;box-shadow:none;border:0;border-radius:0;grid-template-rows:minmax(0,1fr) auto;display:grid;position:fixed;inset:0}.workbench.is-fullscreen .editor-grid{grid-template-rows:minmax(0,1fr);min-height:0}.workbench.is-fullscreen .editor-pane{flex-direction:column;min-height:0;display:flex;overflow:hidden}.workbench.is-fullscreen .editor-host{flex:auto;height:auto;min-height:0}.button,.pane-button{border-radius:var(--radius-control);white-space:nowrap;cursor:pointer;justify-content:center;align-items:center;gap:7px;font-weight:680;transition:transform .12s,border-color .15s,color .15s,background-color .15s,opacity .15s;display:inline-flex}.button{border:1px solid #0000;min-height:38px;padding:0 12px;font-size:13px}.button.primary{color:var(--accent-ink);background:var(--accent)}.button.primary:hover:not(:disabled){background:var(--accent-strong)}.button.secondary{border-color:var(--border);background:var(--surface-raised)}.button.secondary:hover:not(:disabled),.button.quiet:hover:not(:disabled){border-color:var(--border-strong);background:var(--surface-muted)}.button.quiet{color:var(--text-soft);background:0 0;border-color:#0000}.button.quiet.is-active{border-color:color-mix(in srgb, var(--accent) 24%, var(--border));color:var(--accent-strong);background:var(--surface-accent)}.button.danger{border-color:var(--danger-border);color:var(--danger);background:var(--danger-soft)}.button:disabled,.pane-button:disabled{cursor:not-allowed;opacity:.48}.button.is-concealed{visibility:hidden;pointer-events:none}.editor-grid{background:var(--border);grid-template-columns:minmax(0,2fr) minmax(0,3fr);gap:1px;display:grid}.editor-pane{background:var(--surface-raised);min-width:0}.pane-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;min-height:48px;padding:7px 12px 7px 15px;display:flex;position:relative}.pane-header-main{flex:auto;align-items:center;gap:9px;min-width:0;display:flex}.pane-header strong{white-space:nowrap;flex:none;font-size:13px}.pane-header span{color:var(--text-faint);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.pane-meta,.pane-actions{flex:none;align-items:center;gap:8px;display:flex}.pane-tools{align-items:center;gap:2px;min-width:0;display:flex}.pane-divider{background:var(--border);width:1px;height:20px;margin:0 3px}.pane-meta span+span:before{content:"/";color:var(--border-strong);margin-right:8px}.pane-button{min-height:32px;color:var(--text-soft);background:0 0;border:1px solid #0000;padding:0 8px;font-size:12px}.pane-button:hover:not(:disabled){border-color:var(--border);color:var(--text);background:var(--surface-muted)}.pane-button.is-primary,.pane-button.is-active{border-color:color-mix(in srgb, var(--accent) 26%, var(--border));color:var(--accent-strong);background:var(--surface-accent)}.pane-button.is-danger{border-color:var(--danger-border);color:var(--danger);background:var(--danger-soft)}.result-transform-button{flex:0 0 66px;width:66px}.result-pane-actions{position:relative}.result-cancel-button{z-index:2;margin:auto 0;position:absolute;top:0;bottom:0;right:0}.pane-button.is-concealed{visibility:hidden;pointer-events:none}.pane-progress{z-index:2;background:color-mix(in srgb, var(--accent) 14%, transparent);pointer-events:none;height:2px;position:absolute;bottom:-1px;left:0;right:0;overflow:hidden}.pane-progress span{background:var(--accent);height:100%;transition:width .18s ease-out;display:block}.file-mode-banner{border-bottom:1px solid var(--border);min-height:40px;color:var(--text-soft);background:var(--surface-accent);align-items:center;gap:8px;padding:7px 14px;font-size:12px;display:flex}.file-mode-banner button{color:var(--accent-strong);cursor:pointer;background:0 0;border:0;margin-left:auto;padding:4px 7px;font-size:12px;font-weight:700}.editor-host{height:clamp(480px,100dvh - 192px,940px);min-height:480px;position:relative;overflow:hidden}.code-editor{width:100%;height:100%}.code-editor .cm-editor{height:100%}.code-editor .cm-content{cursor:text;-webkit-user-select:text;user-select:text}.output-host .code-editor{z-index:1;position:relative}.output-host.has-error .code-editor{visibility:hidden}.editor-empty-state{z-index:2;color:var(--text-faint);text-align:center;background:var(--surface-raised);pointer-events:none;align-content:center;justify-items:center;gap:7px;padding:28px;display:grid;position:absolute;inset:0}.editor-empty-state strong{color:var(--text);font-size:14px}.editor-empty-state span{max-width:34ch;font-size:12px;line-height:1.55}.editor-status-card{z-index:3;border:1px solid var(--border);border-radius:var(--radius-control);pointer-events:none;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:3px 10px;max-width:640px;padding:12px 14px;display:grid;position:absolute;bottom:16px;left:16px;right:16px;box-shadow:0 12px 32px #14262a24}.editor-status-card svg{grid-row:1/span 2}.editor-status-card strong{overflow-wrap:anywhere;font-size:13px;line-height:1.45}.editor-status-card span{color:var(--text-soft);font-size:11px}.cancelled-state{color:var(--text-soft);background:var(--surface-raised)}.json-error-panel{z-index:3;color:var(--text);background:color-mix(in srgb, var(--surface-raised) 96%, var(--danger-soft));padding:28px 30px;position:absolute;inset:0;overflow:auto}.json-error-heading{color:var(--danger);align-items:center;gap:8px;display:flex}.json-error-heading h3{letter-spacing:.01em;margin:0;font-size:15px;font-weight:700}.json-error-location{color:var(--text-soft);margin:16px 0 0;font-size:13px}.json-error-description{overflow-wrap:anywhere;max-width:88ch;margin:14px 0 0;font-size:13px;line-height:1.65}.json-error-code{border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface-muted);max-width:100%;margin-top:14px;overflow-x:auto}.json-error-code-grid{grid-template-columns:42px max-content;width:max-content;min-width:100%;padding:11px 0;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:13px;line-height:1.6;display:grid}.json-error-line-number{border-right:1px solid var(--border);color:var(--text-faint);text-align:right;-webkit-user-select:none;user-select:none;padding-right:10px}.json-error-code code{color:var(--text);font:inherit;white-space:pre;padding-left:12px;padding-right:16px}.json-error-pointer{color:var(--danger)!important;font-weight:700!important}.json-error-pointer-spacer{visibility:hidden}.result-bar{border-top:1px solid var(--border);min-height:32px;color:var(--text-soft);background:var(--surface-muted);white-space:nowrap;align-items:center;gap:14px;padding:5px 12px;font-size:10px;line-height:1.2;display:flex;overflow-x:auto}.result-bar strong{color:var(--text);font-variant-numeric:tabular-nums}.simple-page{min-height:calc(100dvh - 180px);padding-top:70px;padding-bottom:100px}.simple-page-heading{margin-bottom:34px}.policy-page{max-width:900px}.policy-page section{border-top:1px solid var(--border);padding:22px 0}.policy-page h2{letter-spacing:-.015em;margin:0 0 9px;font-size:18px}.policy-page section p{max-width:72ch;color:var(--text-soft);margin:0;font-size:14px;line-height:1.8}.app-footer{min-height:var(--footer-height);color:var(--text-soft);font-size:12px;line-height:var(--footer-height);justify-content:center;align-items:center;display:flex}.app-footer a{color:inherit;text-decoration:none}.app-footer a:hover{color:var(--accent)}.drop-overlay{z-index:40;border:2px dashed var(--accent);border-radius:var(--radius-panel);color:var(--accent-strong);background:color-mix(in srgb, var(--surface) 94%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);pointer-events:none;align-content:center;justify-items:center;gap:9px;display:grid;position:fixed;inset:18px}.drop-overlay strong{font-size:18px}.drop-overlay span{color:var(--text-soft);font-size:13px}@media (min-width:1121px) and (max-width:1380px){.result-pane-header .pane-button{gap:0;padding-left:5px;padding-right:5px}.result-pane-header .pane-button svg{display:none}.result-transform-button{flex-basis:48px;width:48px}.result-pane-header .pane-actions{gap:2px}}@media (max-width:1120px){.editor-grid{grid-template-columns:minmax(0,1fr)}.editor-host{height:510px}.output-pane{border-top:1px solid var(--border)}.workbench.is-fullscreen .editor-grid{grid-template-rows:repeat(2,minmax(460px,1fr));overflow-y:auto}}@media (max-width:860px){.header-inner{grid-template-columns:1fr auto;padding:0 18px}.workspace-page,.simple-page,.app-footer{padding-left:18px;padding-right:18px}.workspace-page{padding-top:10px}}@media (max-width:620px){.app-header{height:60px}.header-inner{padding:0 12px}.json-error-panel{padding:20px 16px}.brand{font-size:14px}.brand-mark{width:32px;height:32px}.workspace-page,.simple-page,.app-footer{padding-left:12px;padding-right:12px}.simple-page-heading h1{font-size:32px}.pane-header{flex-wrap:wrap;align-items:stretch;gap:4px;padding:8px 9px}.pane-header-main{flex-wrap:wrap;flex:100%}.pane-tools{flex-wrap:wrap;order:3;width:100%}.pane-divider{display:none}.pane-actions{margin-left:auto}.pane-meta span:first-child,.pane-header-main>span{display:none}.pane-meta span+span:before{content:none}.editor-host{height:460px;min-height:400px}.file-mode-banner{flex-wrap:wrap;align-items:flex-start}.file-mode-banner button{margin-left:27px}.result-bar{gap:15px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}