:root{color:#213042;font-synthesis:none;--surface:#fff;--soft:#f5f7fa;--border:#dbe2eb;--muted:#65758a;--accent:#175e98;--accent-soft:#e9f2fb;--error:#9d272c;--success:#176a43;--viewer:radial-gradient(ellipse at 50% 40%, #fcfdff, #e9eef5);--shadow:0 4px 24px #1a34530a;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;background:#f3f5f8;font-family:Segoe UI,Microsoft YaHei,sans-serif}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){color:#e2e8f0;--surface:#1a2431;--soft:#151e29;--border:#344256;--muted:#a5b3c5;--accent:#79b9f3;--accent-soft:#223d56;--error:#ff999b;--success:#80d4ab;--viewer:radial-gradient(ellipse at 50% 40%, #263447, #131d29);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#111821}}:root[data-theme=dark]{color:#e2e8f0;--surface:#1a2431;--soft:#151e29;--border:#344256;--muted:#a5b3c5;--accent:#79b9f3;--accent-soft:#223d56;--error:#ff999b;--success:#80d4ab;--viewer:radial-gradient(ellipse at 50% 40%, #263447, #131d29);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#111821}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,select,input[type=number]{border:1px solid var(--border);background:var(--surface);color:inherit;border-radius:7px;padding:8px 10px}button,a{cursor:pointer}button:hover,a:hover{border-color:var(--accent)}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}button:disabled,select:disabled{opacity:.5;cursor:wait}input[type=checkbox],input[type=range]{accent-color:var(--accent)}h1,h2,p{margin-top:0}h1{letter-spacing:.03em;margin-bottom:3px;font-size:19px}h2{margin-bottom:14px;font-size:15px}.app-header{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;min-height:88px;padding:18px 28px;display:flex}.brand{align-items:center;gap:14px;display:flex}.brand-mark{color:var(--accent);font-size:40px;line-height:1}.brand p{color:var(--muted);margin-bottom:0;font-size:12px}.theme-switch{align-items:center;gap:10px;font-size:13px;display:flex}.workspace{grid-template-columns:370px minmax(0,1fr);gap:20px;padding:20px;display:grid}.controls,.viewer{border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px}.controls{background:var(--surface);max-height:calc(100vh - 128px);padding:22px;overflow-y:auto}.selection>label{margin:12px 0 7px;font-size:13px;display:block}.selection>select{width:100%}.muted,.unit{color:var(--muted);font-size:12px}.unit{margin-left:5px;font-weight:400}.selection .muted{margin:8px 0}.presets{flex-wrap:wrap;gap:7px;margin:18px 0;display:flex}.presets button{font-size:12px}.presets .selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}fieldset{border:0;border-top:1px solid var(--border);margin:12px 0;padding:16px 0 4px}legend{padding-right:10px;font-size:13px;font-weight:600}.parameter{padding:7px 0}.parameter>label{margin-bottom:6px;font-size:13px;display:block}.parameter-inputs{align-items:center;gap:12px;display:flex}.parameter-inputs input[type=range]{flex:1;min-width:0}.parameter-inputs input[type=number]{width:100%;min-width:0}.parameter-inputs input[type=range]+input[type=number]{width:95px}.invalid input[type=number]{border-color:var(--error)}.field-error{color:var(--error);margin:6px 0 0;font-size:12px}.error-card{color:var(--error);background:var(--soft);border:1px solid var(--error);border-radius:9px;padding:15px;font-size:13px}.error-card p:last-child{margin-bottom:0}.error-card ul{padding-left:18px}.backend-failures{color:var(--error);margin:14px 0;font-size:12px}.backend-failures summary{cursor:pointer}.backend-failures article{background:var(--soft);margin:10px 0;padding:8px}.backend-failures ul{margin-bottom:0;padding-left:18px}.warnings,.stale{color:var(--muted);font-size:12px;line-height:1.6}.generation-status{margin:14px 0;font-size:13px}.stale{border-left:3px solid var(--accent);background:var(--soft);margin-top:12px;padding:10px}.primary{background:var(--accent);color:var(--surface);border-color:var(--accent);font-weight:600}.generate{width:100%;margin-bottom:20px}.metrics{border-top:1px solid var(--border);padding-top:20px}dl{margin:0 0 14px}dl>div{justify-content:space-between;gap:15px;margin:10px 0;font-size:12px;display:flex}dt{overflow-wrap:anywhere}dd{text-align:right;font-variant-numeric:tabular-nums;flex-shrink:0;margin:0}.positive{color:var(--success);font-weight:600}.negative{color:var(--error);font-weight:600}.downloads{gap:10px;display:flex}.downloads a{color:var(--accent);border:1px solid var(--border);text-align:center;border-radius:7px;flex:1;padding:9px 12px;font-size:13px;text-decoration:none}.viewer{background:var(--viewer);height:calc(100vh - 128px);min-height:500px;position:relative;overflow:hidden}.viewer-toolbar{z-index:2;background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;font-size:14px;display:flex;position:absolute;inset:0 0 auto}.viewer-actions{align-items:center;gap:16px;font-size:12px;display:flex}.viewer-actions button{font-size:12px}.canvas-container{position:absolute;inset:60px 0 0}.canvas-container canvas{width:100%;height:100%;display:block}.viewer-message{z-index:2;text-align:center;min-width:260px;max-width:85%;position:absolute;top:45%;left:50%;transform:translate(-50%,-50%)}.parts{background:var(--surface);border:1px solid var(--border);border-radius:9px;max-width:45%;max-height:35%;padding:14px;position:absolute;bottom:55px;right:20px;overflow:auto}.parts h2{margin-bottom:9px;font-size:12px}.parts label{margin:6px 0;font-size:12px;display:block}.viewer-help{pointer-events:none;margin:0;position:absolute;bottom:10px;left:20px}.startup-message{max-width:620px;margin:80px auto;padding:30px}@media (width<=1000px){.workspace{grid-template-columns:320px minmax(0,1fr);gap:12px;padding:12px}.controls{padding:16px}}@media (width<=760px){.app-header{flex-wrap:wrap;gap:15px;padding:16px}.workspace{flex-direction:column;display:flex}.viewer{order:-1;height:60vh;min-height:420px}.controls{max-height:none}.viewer-toolbar{padding:12px}.parts{right:12px}}
