:root{--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#4f46e50f;--bg:#f8fafc;--surface:#fff;--text:#0f172a;--text-secondary:#475569;--border:#e2e8f0;--sidebar-width:370px;--font:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans CN", system-ui, sans-serif;--red:#dc2626;--green:#16a34a;--focus-ring:#4f46e526;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--primary:#818cf8;--primary-hover:#6366f1;--primary-light:#818cf81a;--bg:#0f172a;--surface:#1e293b;--text:#f1f5f9;--text-secondary:#94a3b8;--border:#334155;--red:#f87171;--green:#4ade80;--focus-ring:#818cf833}}[data-theme=dark]{--primary:#818cf8;--primary-hover:#6366f1;--primary-light:#818cf81a;--bg:#0f172a;--surface:#1e293b;--text:#f1f5f9;--text-secondary:#94a3b8;--border:#334155;--red:#f87171;--green:#4ade80;--focus-ring:#818cf833}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}#app{flex-direction:column;min-height:100vh;display:flex}header{text-align:left;padding:var(--space-5) var(--space-6) var(--space-3);background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.header-left{flex:1;min-width:0}header h1{color:var(--text);letter-spacing:-.01em;text-wrap:balance;margin-bottom:4px;font-size:22px;font-weight:700}header p{color:var(--text-secondary);font-size:13px;line-height:1.5}.header-right{gap:var(--space-2);flex-shrink:0;display:flex}main{flex:1;display:flex;overflow:hidden}#controls{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);padding:var(--space-4);scrollbar-width:thin;scrollbar-color:var(--border) transparent;overflow-y:auto}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}input:focus-visible,select:focus-visible{box-shadow:0 0 0 3px var(--focus-ring);outline:none}.wizard-step{padding:4px}.step-indicator{align-items:center;gap:var(--space-3);margin-bottom:var(--space-5);padding:var(--space-3) var(--space-4);background:var(--primary-light);border:1px solid #4f46e51a;border-radius:8px;display:flex}.step-indicator span{color:var(--primary);font-size:12px;font-weight:600}.step-indicator strong{color:var(--text);font-size:14px;font-weight:600}.tab-bar{border-bottom:2px solid var(--border);gap:0;margin-bottom:16px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;font-size:13px;font-weight:600;font-family:var(--font);background:0 0;border:none;border-bottom:2px solid #0000;flex:1;margin-bottom:-2px;padding:8px 12px;transition:all .2s}.tab-btn:hover{color:var(--primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.tab-panel{display:none}.tab-panel.active{display:block}.control-group{margin-bottom:var(--space-5);padding-bottom:var(--space-5);border-bottom:1px solid var(--border)}.control-group:last-child{border-bottom:none}.control-group h3{color:var(--text-secondary);margin-bottom:var(--space-3);letter-spacing:.03em;text-transform:uppercase;font-size:12px;font-weight:600}.control-row{align-items:center;gap:10px;margin-bottom:10px;display:flex}.control-row label{color:var(--text-secondary);flex-shrink:0;min-width:90px;font-size:12px}.control-row input[type=text],.control-row input[type=number],.control-row select{border:1px solid var(--border);font-size:13px;font-family:var(--font);color:var(--text);background:var(--bg);border-radius:6px;flex:1;padding:7px 10px;transition:border-color .15s ease-out,box-shadow .15s ease-out,background-color .15s ease-out}.control-row input:hover,.control-row select:hover{border-color:#cbd5e1}.control-row input:focus,.control-row select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--focus-ring);background:var(--surface);outline:none}.curve-card-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;max-height:320px;padding:4px;display:grid;overflow-y:auto}.curve-card{border:2px solid var(--border);background:var(--surface);cursor:pointer;text-align:center;border-radius:10px;width:100%;transition:all .15s ease-out;overflow:hidden}.curve-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.curve-card.selected{border-color:var(--primary);border-width:3px;box-shadow:0 4px 16px #4f46e533}.curve-card-preview{background:var(--bg);justify-content:center;align-items:flex-end;height:60px;padding:4px 6px;display:flex}.curve-card-label{color:var(--text);white-space:nowrap;text-overflow:ellipsis;padding:4px 6px 6px;font-size:11px;font-weight:600;overflow:hidden}.curve-selector{grid-template-columns:1fr 1fr;gap:6px;display:grid}.curve-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:12px;font-family:var(--font);cursor:pointer;text-align:center;border-radius:8px;padding:7px 10px;font-weight:500;transition:all .15s ease-out}.curve-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);transform:translateY(-1px)}.curve-btn:active{transform:translateY(0)}.curve-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 1px 3px #4f46e54d}.curve-btn .color-dot{vertical-align:middle;border-radius:50%;width:8px;height:8px;margin-right:4px;display:inline-block}.data-viewer{margin-top:8px}.data-viewer table{border-collapse:separate;border-spacing:0;table-layout:fixed;border:1px solid var(--border);border-radius:8px;width:100%;font-size:11px;overflow:hidden}.data-viewer th{padding:var(--space-2) var(--space-3);text-align:center;color:var(--text-secondary);border-bottom:1px solid var(--border);letter-spacing:.02em;text-transform:uppercase;z-index:1;background:#f1f5f9;font-size:10px;font-weight:600;position:sticky;top:0}.data-viewer td{padding:var(--space-2) var(--space-3);text-align:center;font-variant-numeric:tabular-nums;border-bottom:1px solid #f1f5f9;transition:background-color .1s ease-out}.data-viewer tbody tr:hover td{background:var(--primary-light)}.data-viewer tbody tr:last-child td{border-bottom:none}.data-viewer tbody{max-height:250px;display:block;overflow-y:auto}.data-viewer thead,.data-viewer tbody tr{table-layout:fixed;width:100%;display:table}.checkbox-row{align-items:center;gap:var(--space-2);margin-bottom:var(--space-3);display:flex}.checkbox-row input[type=checkbox]{accent-color:var(--primary);cursor:pointer;width:16px;height:16px}.checkbox-row label{color:var(--text);cursor:pointer;font-size:13px}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px;font-family:var(--font);cursor:pointer;border-radius:8px;padding:8px 16px;font-weight:500;transition:all .15s ease-out}.btn:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}#chart-container{padding:var(--space-5);background:var(--bg);flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:500px;display:flex;position:relative;overflow:auto}#chart{background:var(--surface);border-radius:16px;max-width:100%;max-height:100%;transition:box-shadow .2s ease-out;box-shadow:0 1px 4px #0000000f,0 8px 24px #0000000a}#chart:hover{box-shadow:0 2px 8px #00000014,0 12px 32px #0000000f}#tooltip{color:#fff;pointer-events:auto;opacity:0;white-space:nowrap;z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172aeb;border-radius:8px;padding:8px 14px;font-size:12px;line-height:1.5;transition:opacity .15s ease-out;position:absolute;box-shadow:0 4px 12px #00000026}#tooltip.visible{opacity:1}@media (width<=900px){main{flex-direction:column}#controls{border-right:none;border-bottom:1px solid var(--border);width:100%;min-width:100%;max-height:45vh}header h1{font-size:20px}header p{font-size:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.curve-card:hover,.curve-btn:hover,.btn:hover{transform:none}}.theme-toggle{border:1px solid var(--border);background:var(--surface);width:36px;height:36px;color:var(--text);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:18px;transition:all .15s ease-out;display:flex}.theme-toggle:hover{border-color:var(--primary);background:var(--primary-light)}[data-theme=dark] .data-viewer th,:root:not([data-theme=light]) .data-viewer th{background:#334155}[data-theme=dark] .data-viewer td,:root:not([data-theme=light]) .data-viewer td{border-bottom-color:#334155}[data-theme=dark] #chart,:root:not([data-theme=light]) #chart{box-shadow:0 1px 4px #0000004d,0 8px 24px #0003}[data-theme=dark] #tooltip,:root:not([data-theme=light]) #tooltip{color:#0f172a;background:#f1f5f9eb}.stats-bar{gap:var(--space-4);padding:var(--space-3) var(--space-4);background:var(--surface);border:1px solid var(--border);margin-bottom:var(--space-3);border-radius:10px;flex-wrap:wrap;width:100%;max-width:1100px;font-size:13px;display:flex}.stats-bar .stat-item{align-items:center;gap:var(--space-2);display:flex}.stats-bar .stat-label{color:var(--text-secondary);font-size:12px}.stats-bar .stat-value{color:var(--text);font-weight:700}.validation-error{border-color:var(--red)!important;box-shadow:0 0 0 3px #dc26261a!important}.validation-msg{color:var(--red);margin-top:2px;font-size:11px}.btn-loading{pointer-events:none;opacity:.8;position:relative}.btn-loading:after{content:"";vertical-align:middle;border:2px solid #0000;border-top-color:currentColor;border-radius:50%;width:14px;height:14px;margin-left:8px;animation:.6s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}